Standard delivery
Standard delivery if no other information is provided. For other network voltages than voltage code D (see description on page 18) and/or side-mounted motors, please contact your ABB sales office.
Motor size | Pole number | Terminal box | Size of gland plate opening | 45° angle | Amount and size of threaded | Max. con nectable core | Number and |
type | on terminal box | adapter | pluggeed holes, or cable | cross-section mm2/phase | size of termi | ||
sealing end unit | nal bolts | ||||||
IE2, IE3, IE4 motors | |||||||
71 | 2~8 | integr. | - | - | 2xM16x1.5 | 1x2.5 | 6 x M4 |
80 | 2~8 | integr. | - | - | 2xM25x1.5 | 1x4 | 6 x M4 |
90 | 2~8 | integr. | - | - | 2xM25x1.5 | 1x6 | 6 x M5 |
100-132 | 2~8 | integr. | - | - | 2x M32x1.5 | 1x10 | 6 x M5 |
160-180 | 2~8 | 63 | B | - | 2xM40x1.5 | 1x35 | 6 x M6 |
200-250 | 2~8 | 160 | C | - | 2xM63x1.5 | 1x70 | 6 x M10 |
280 | 2~8 | 210 | C | - | 2xM63x1.5 | 2x150 | 6 x M12 |
315SM_, ML_ | 2~8 | 370 | D | - | 2xM63x1.5 | 2x240 | 6 x M12 |
315LKA, LKB | 2~4 | 370 | D | - | 2xM63x1.5 | 2x240 | 6 x M12 |
315LKC | 2~4 | 750 | E | - | 2xM75x1.5 | 4x240 | 6 x M12 |
315LK_ | 6~8 | 370 | D | - | 2xM63x1.5 | 2x240 | 6 x M12 |
355SMA - SMC | 2~4 | 750 | E | - | 2xM75x1.5 | 4x240 | 6 x M12 |
355SMA, SMB | 6~8 | 370 | D | - | 2xM63x1.5 | 2x240 | 6 x M12 |
355SMC | 6 | 750 | E | - | 2xM75x1.5 | 4x240 | 6 x M12 |
355SMC | 8 | 370 | D | - | 2xM63x1.5 | 2x240 | 6 x M12 |
355MLA | 2~4 | 750 | E | - | 2xM75x1.5 | 4x240 | 6 x M12 |
355MLB, LK_ | 2~4 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
355ML_, LK_ | 6~8 | 750 | E | - | 2xM75x1.5 | 4x240 | 6 x M12 |
400 | 2~6 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
400LA, LB | 8 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
400LC | 8 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
450 LA | 2 | 1200 | E | E-2D | 4xM75x1.5 | 6x240 | 6 x M12 |
450 LA | 4 | 1200 | E | E-2D | 4xM75x1.5 | 6x240 | 6 x M12 |
450 LB, LC | 2~4 | 1200 | E | E-2D | 4xM75x1.5 | 6x240 | 6 x M12 |
450 LA | 6 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
450 LB, LC | 6 | 1200 | E | E-2D | 4xM75x1.5 | 6x240 | 6 x M12 |
450 | 8 | 750 | E | E-2D | 4xM75x1.5 | 4x240 | 6 x M12 |
Auxiliary cable entries | |||||||
160 - 450 | 2~8 | 2x M20x1.5 | |||||
Motor size | Earthing on frame | Earthing in main terminal box | |||||
71-112 | M4 | M4 | |||||
132 | M5 | M5 | |||||
160-250 | clamp | M6 | |||||
280-400 | M10 | 2xM10 | |||||
450 | M10 | 4xM12 |
Terminal box
Terminal box dimensions
01 Terminal box type 63 and 160.
Ball bearings | Roller bearings | |||||||||
Length of shaft | ||||||||||
extension | 20,000 h | 40,000 h | 20,000 h | 40,000 h | ||||||
Motor size | Poles | E (mm) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) |
160 MLA | 2 | 110 | 3540 | 2740 | 2955 | 2285 | 7100 | 4300 | 6140 | 4300 |
4 | 110 | 4000 | 3100 | 3325 | 2570 | 8000 | 4300 | 6870 | 4300 | |
6 | 110 | 4170 | 3200 | 3440 | 2655 | 8600 | 4300 | 7270 | 4300 | |
8 | 110 | 4600 | 3585 | 3855 | 2985 | 9300 | 4300 | 7955 | 4300 | |
160 MLB | 2 | 110 | 3540 | 2740 | 2955 | 2270 | 7085 | 4300 | 6070 | 4300 |
4 | 110 | 4085 | 3300 | 3370 | 2725 | 8300 | 4300 | 7055 | 4300 | |
6 | 110 | 4100 | 3355 | 3400 | 2755 | 8600 | 4300 | 7300 | 4300 | |
8 | 110 | 4200 | 3270 | 3455 | 2670 | 9000 | 4300 | 7570 | 4300 | |
160 MLC | 2 | 110 | 3400 | 2600 | 2855 | 2200 | 6800 | 4300 | 5885 | 4300 |
4 | 110 | 3700 | 3000 | 3070 | 2485 | 7800 | 4300 | 6640 | 4300 | |
6 | 110 | 3600 | 2900 | 2870 | 2325 | 8000 | 4300 | 6700 | 4300 | |
8 | 110 | 4170 | 3370 | 3370 | 2725 | 9000 | 4300 | 7585 | 4300 | |
160 MLD | 2 | 110 | 3585 | 2900 | 3000 | 2440 | 7100 | 4300 | 6140 | 4300 |
4 | 110 | 3400 | 2755 | 2755 | 2240 | 7600 | 4300 | 6370 | 4300 | |
160 MLE | 2 | 110 | 3185 | 2570 | 2640 | 2140 | 6785 | 4300 | 5770 | 4300 |
180 MLA | 2 | 110 | 4100 | 3385 | 3455 | 2825 | 8125 | 5500 | 7025 | 5500 |
4 | 110 | 4270 | 3485 | 3525 | 2885 | 8600 | 5500 | 7300 | 5500 | |
6 | 110 | 4700 | 3800 | 3855 | 3155 | 9400 | 5500 | 7900 | 5500 | |
8 | 110 | 4785 | 3900 | 3870 | 3170 | 9800 | 5500 | 8255 | 5500 | |
180 MLB | 2 | 110 | 4170 | 3400 | 3470 | 2825 | 7900 | 5500 | 6770 | 5500 |
4 | 110 | 4185 | 3400 | 3440 | 2810 | 8500 | 5500 | 7200 | 5500 | |
6 | 110 | 4370 | 3570 | 3525 | 2885 | 9000 | 5500 | 7600 | 5500 | |
180 MLC | 4 | 110 | 3700 | 3055 | 3010 | 2470 | 7900 | 5500 | 6655 | 5440 |
200 MLA | 2 | 110 | 5600 | 4685 | 4700 | 3925 | 10900 | 9100 | 9470 | 7900 |
4 | 110 | 6285 | 5200 | 5240 | 4370 | 12500 | 9550 | 10700 | 8900 | |
6 | 110 | 6800 | 5700 | 5700 | 4770 | 13600 | 9550 | 11670 | 9550 | |
8 | 110 | 6800 | 5700 | 5600 | 4685 | 14100 | 9550 | 12000 | 9550 | |
200 MLB | 2 | 110 | 5670 | 4700 | 4700 | 3925 | 11000 | 9200 | 9500 | 7900 |
4 | 110 | 5700 | 4700 | 4700 | 3925 | 12000 | 9550 | 10185 | 8500 | |
6 | 110 | 6400 | 5370 | 5300 | 4425 | 13200 | 9550 | 11200 | 9385 | |
200 MLC | 2 | 110 | 5000 | 4185 | 4185 | 3500 | 10400 | 8700 | 8900 | 7455 |
4 | 110 | 5400 | 4500 | 4425 | 3685 | 11600 | 9550 | 9800 | 8200 | |
6 | 110 | 5800 | 4885 | 4740 | 3955 | 12500 | 9550 | 10600 | 8800 | |
200 MLD | 2 | 110 | 4985 | 4170 | 4170 | 3485 | 10400 | 8700 | 8900 | 7400 |
225 SMA | 2 | 110 | 6400 | 5400 | 5355 | 4500 | 13300 | 10700 | 11500 | 9700 |
4 | 140 | 7300 | 5900 | 6155 | 4970 | 15400 | 10250 | 13200 | 10250 | |
6 | 140 | 7600 | 6200 | 6370 | 5140 | 16400 | 10250 | 14000 | 10250 | |
8 | 140 | 8500 | 6900 | 7100 | 5725 | 17900 | 10250 | 15300 | 10250 | |
225 SMB | 2 | 110 | 6100 | 5185 | 5155 | 4340 | 13000 | 10700 | 11200 | 9455 |
4 | 140 | 7085 | 5700 | 5885 | 4755 | 15100 | 10250 | 12900 | 10250 | |
6 | 140 | 7100 | 5700 | 5840 | 4700 | 16000 | 10250 | 13500 | 10250 | |
8 | 140 | 8000 | 6485 | 6600 | 5340 | 17300 | 10250 | 14700 | 10250 | |
225 SMC | 2 | 110 | 5600 | 4700 | 4685 | 3940 | 12600 | 10600 | 10770 | 9070 |
4 | 140 | 6400 | 5200 | 5300 | 4285 | 14500 | 10250 | 12385 | 10000 | |
225 SMD | 2 | 110 | 5500 | 4640 | 4600 | 3880 | 12420 | 10460 | 10640 | 8960 |
4 | 140 | 5800 | 4700 | 4725 | 3800 | 13500 | 10250 | 11400 | 9270 | |
250 SMA | 2 | 140 | 7700 | 6285 | 6500 | 5285 | 17100 | 10900 | 14900 | 10900 |
4 | 140 | 8700 | 7000 | 7300 | 5900 | 19800 | 13800 | 17000 | 13785 | |
6 | 140 | 9400 | 7600 | 7800 | 6355 | 21600 | 13800 | 18400 | 13800 | |
8 | 140 | 9600 | 7800 | 7900 | 6400 | 22700 | 13800 | 19300 | 13800 | |
250 SMB | 2 | 140 | 7100 | 5800 | 6000 | 4885 | 16700 | 10900 | 14400 | 10900 |
4 | 140 | 7800 | 6300 | 6470 | 5240 | 18900 | 13800 | 16200 | 13100 | |
6 | 140 | 8900 | 7200 | 7355 | 5955 | 21200 | 13800 | 18000 | 13800 | |
250 SMC | 2 | 140 | 6800 | 5500 | 5670 | 4600 | 16300 | 10900 | 14000 | 10900 |
4 | 140 | 7400 | 6000 | 6055 | 4900 | 18100 | 13800 | 15400 | 12485 | |
6 | 140 | 8200 | 6600 | 6670 | 5400 | 20300 | 13800 | 17200 | 13800 |
Permissible radial forces
Ball bearings | Roller bearings | |||||||||
Length of shaft | ||||||||||
extension | 20,000 h | 40,000 h | 20,000 h | 40,000 h | ||||||
Motor size | Poles | E (mm) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) | FX0(N) | FXmax(N) |
280 SM_ | 2 | 140 | 7300 | 6000 | 5800 | 4900 | 20400 | 6000 | 16500 | 6000 |
4 | 140 | 9200 | 7800 | 7300 | 6200 | 25100 | 9200 | 20300 | 9200 | |
6 | 140 | 10600 | 8900 | 8400 | 7000 | 28300 | 9200 | 23000 | 9200 | |
8 | 140 | 11700 | 9200 | 9200 | 7800 | 30900 | 9200 | 25100 | 9200 | |
280 ML_ | 2 | 140 | 7400 | 6200 | 5800 | 5000 | 20600 | 6200 | 16700 | 6200 |
4 | 140 | 9200 | 7900 | 7300 | 6200 | 25000 | 9500 | 20300 | 9500 | |
6 | 140 | 10500 | 9000 | 8300 | 7100 | 28300 | 9400 | 22900 | 9400 | |
8 | 140 | 11600 | 9500 | 9200 | 7900 | 30800 | 9500 | 25000 | 9500 | |
315 SM_ | 2 | 140 | 7300 | 6000 | 5800 | 4950 | 20300 | 6000 | 16500 | 6000 |
4 | 170 | 11400 | 9400 | 9000 | 7450 | 32500 | 9600 | 26600 | 9600 | |
6 | 170 | 13000 | 9600 | 10300 | 8500 | 37000 | 9600 | 30000 | 9600 | |
8 | 170 | 14400 | 9600 | 11400 | 9400 | 40300 | 9600 | 32700 | 9600 | |
315 ML_ | 2 | 140 | 7400 | 6400 | 5850 | 5050 | 20600 | 5850 | 16700 | 5850 |
4 | 170 | 11500 | 9700 | 9100 | 7650 | 32700 | 13600 | 26500 | 13600 | |
6 | 170 | 13200 | 11100 | 10400 | 8800 | 36900 | 13600 | 29900 | 13600 | |
8 | 170 | 14500 | 12200 | 11500 | 9700 | 40200 | 13600 | 32600 | 13600 | |
315 LK_ | 2 | 140 | 7400 | 6550 | 5800 | 5150 | 20800 | 5550 | 16800 | 5550 |
4 | 170 | 11500 | 10000 | 9100 | 7850 | 33100 | 13350 | 26800 | 13350 | |
6 | 170 | 13200 | 11400 | 10450 | 9050 | 37300 | 13350 | 30300 | 13350 | |
8 | 170 | 14600 | 12600 | 11550 | 10000 | 40800 | 13350 | 33100 | 13350 | |
355 SM_ | 2 | 140 | 7350 | 6450 | 5750 | 5050 | 20600 | 7200 | 16700 | 7200 |
4 | 210 | 15200 | 12600 | 12000 | 9950 | 45500 | 14000 | 36900 | 14000 | |
6 | 210 | 17500 | 14000 | 13800 | 11400 | 51400 | 14000 | 41700 | 14000 | |
8 | 210 | 19300 | 14000 | 15250 | 12600 | 56000 | 14000 | 45500 | 14000 | |
355 ML_ | 2 | 140 | 7350 | 6550 | 5750 | 5100 | 20800 | 6750 | 16800 | 6750 |
4 | 210 | 15300 | 12900 | 12000 | 10100 | 45900 | 13600 | 37200 | 13600 | |
6 | 210 | 17600 | 13600 | 13900 | 11600 | 51500 | 13600 | 42100 | 13600 | |
8 | 210 | 19400 | 13600 | 15300 | 12900 | 56000 | 13600 | 45900 | 13600 | |
355 LK_ | 2 | 140 | 7350 | 6650 | 5650 | 5100 | 21000 | 6550 | 17000 | 6550 |
4 | 210 | 15200 | 13000 | 11850 | 10200 | 46000 | 13000 | 37300 | 13000 | |
6 | 210 | 17500 | 13000 | 13700 | 11900 | 52000 | 13000 | 42000 | 13000 | |
8 | 210 | 19400 | 13000 | 15200 | 13000 | 56500 | 13000 | 46000 | 13000 | |
400 L_ | 2 | 170 | 7650 | 6850 | 4400 | 3900 | 23900 | 9050 | 19350 | 9050 |
4 | 210 | 15600 | 13550 | 12150 | 10550 | 52500 | 16000 | 43300 | 16000 | |
6 | 210 | 17800 | 15450 | 13850 | 12000 | 60000 | 16000 | 48800 | 16000 | |
8 | 210 | 19700 | 16000 | 15350 | 13350 | 65700 | 16000 | 53200 | 16000 | |
400 LK_ | 2 | 170 | 7650 | 6850 | 4400 | 3900 | 23900 | 9050 | 19350 | 9050 |
4 | 210 | 15600 | 11500 | 12150 | 10550 | 52500 | 11500 | 43300 | 11500 | |
6 | 210 | 17800 | 11500 | 13850 | 11500 | 60000 | 11500 | 48800 | 11500 | |
8 | 210 | 19700 | 11500 | 15350 | 11500 | 65700 | 11500 | 53200 | 11500 | |
450 L_ | 2 | 170 | 7400 | 6700 | 3500 | 3300 | 24000 | 7500 | 19000 | 7500 |
4 | 210 | 17000 | 15200 | 13000 | 11600 | 62000 | 25000 | 50000 | 25000 | |
6 | 210 | 19000 | 17000 | 14000 | 13000 | 70000 | 24000 | 56000 | 24000 | |
8 | 210 | 21300 | 19000 | 16500 | 14600 | 76000 | 23000 | 62000 | 23000 |
Mechanical design
Axial forces
01 Mounting arrangement IM B3.
02 Mounting arrangement IM V1.
An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. Electric motors can be powered by direct current (DC) sources, such as from batteries, or rectifiers, or by alternating current (AC) sources, such as a power grid, inverters or electrical generators. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.
Electric motors may be classified by considerations such as power source type, internal construction, application and type of motion output. In addition to AC versus DC types, motors may be brushed or brushless, may be of various phase (see single-phase, two-phase, or three-phase), and may be either air-cooled or liquid-cooled. General-purpose motors with standard dimensions and characteristics provide convenient mechanical power for industrial use.
The largest electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors are found in industrial fans, blowers and pumps, machine tools, household appliances, power tools and disk drives. Small motors may be found in electric watches. In certain applications, such as in regenerative braking with traction motors, electric motors can be used in reverse as generators to recover energy that might otherwise be lost as heat and friction.
Electrically, a motor consists of two components which move relative to each other and which together form a magnetic circuit:
Field magnets - This part creates a magnetic field which passes through the armature. It is usually a set of electromagnets surrounding the rotor, consisting of wire windings on a ferromagnetic iron core which guides the magnetic field. Alternatively it can be one or more permanent magnets.
Armature - This is the part through which the electric current flows which develops the force. Like field coils, it consists of wire windings on a ferromagnetic core. When electric current passes through the wire the magnetic field from the field magnet exerts a force on it, called the Lorentz force, turning the rotor.
One of these components is mounted on the stator, the stationary part of the motor attached to the frame, the other is on the rotor, the part that turns. The field magnet is usually on the stator and the armature on the rotor, but in some types of motor these are reversed.
Mechanically, a motor consists of these parts
Rotor
In an electric motor, the moving part is the rotor, which turns the shaft to deliver the mechanical power. The rotor usually has conductors laid into it that carry currents, which the magnetic field of the stator exerts force on to turn the shaft. Alternatively, some rotors carry permanent magnets, and the stator holds the conductors.
There must be an air gap between the stator and rotor so it can turn. The width of the gap has a significant effect on the motor's electrical characteristics. It is generally made as small as possible, as a large gap has a strong negative effect on performance. It is the main source of the low power factor at which motors operate. The magnetizing current increases and the power factor decreases with the air gap, so narrow gaps are better. Very small gaps may pose mechanical problems in addition to noise and losses.
An electric motor is all about magnets and magnetism: A motor uses magnets to create motion. If you have ever played with magnets you know about the fundamental law of all magnets: Opposites attract and likes repel. So if you have two bar magnets with their ends marked "north" and "south," then the north end of one magnet will attract the south end of the other. On the other hand, the north end of one magnet will repel the north end of the other (and similarly, south will repel south). Inside an electric motor, these attracting and repelling forces create rotational motion.
In the above diagram, you can see two magnets in the motor: The armature (or rotor) is an electromagnet, while the field magnet is a permanent magnet (the field magnet could be an electromagnet as well, but in most small motors it isn't in order to save power).
To understand how an electric motor works, the key is to understand how the electromagnet works. (See How Electromagnets Work for complete details.)
An electromagnet is the basis of an electric motor. You can understand how things work in the motor by imagining the following scenario. Say that you created a simple electromagnet by wrapping 100 loops of wire around a nail and connecting it to a battery. The nail would become a magnet and have a north and south pole while the battery is connected.
Now say that you take your nail electromagnet, run an axle through the middle of it and suspend it in the middle of a horseshoe magnet as shown in the figure below. If you were to attach a battery to the electromagnet so that the north end of the nail appeared as shown, the basic law of magnetism tells you what would happen: The north end of the electromagnet would be repelled from the north end of the horseshoe magnet and attracted to the south end of the horseshoe magnet. The south end of the electromagnet would be repelled in a similar way. The nail would move about half a turn and then stop in the position shown.
For simplicity, only the central conductor loop for each phase winding is shown. At the instant t1 in the figure, the current in phase a is maximum positive, while that in phases b and c is half that value negative. The result is a magnetic field with an approximately sinusoidal distribution around the air gap with a maximum outward value at the top and a maximum inward value at the bottom. At time t2 in the figure (i.e., one-sixth of a cycle later), the current in phase c is maximum negative, while that in both phase b and phase a is half value positive. The result, as shown for t2 in the figure, is again a sinusoidally distributed magnetic field but rotated 60° counterclockwise.
Examination of the current distribution for t3, t4, t5, and t6 shows that the magnetic field continues to rotate as time progresses. The field completes one revolution in one cycle of the stator currents. Thus, the combined effect of three equal sinusoidal currents, uniformly displaced in time and flowing in three stator windings uniformly displaced in angular position, is to produce a rotating magnetic field with a constant magnitude and a mechanical angular velocity that depends on the frequency of the electric supply.
The rotational motion of the magnetic field with respect to the rotor conductors causes a voltage to be induced in each, proportional to the magnitude and the velocity of the field relative to the conductors. Since the rotor conductors are short-circuited together at each end, the effect will be to cause currents to flow in these conductors. In the simplest mode of operation, these currents will be about equal to the induced voltage divided by the conductor resistance. The pattern of rotor currents for the instant t1 of the figure is shown in this figure. The currents are seen to be approximately sinusoidally distributed around the rotor periphery and to be located so as to produce a counterclockwise torque on the rotor (i.e., a torque in the same direction as the field rotation).
This torque acts to accelerate the rotor and to rotate the mechanical load. As the rotational speed of the rotor increases, its speed relative to that of the rotating field decreases. Thus, the induced voltage is reduced, leading to a proportional reduction in rotor conductor current and in torque. The rotor speed reaches a steady value when the torque produced by the rotor currents equals the torque required at that speed by the load with no excess torque available for accelerating the combined inertia of the load and the motor.
We require geared motors for conveyors . There are three types and total requirement is about 300 pcs every 3 months .
Pls quote based on the below specifications
1). Helibevel Gear Motor
Power:5.5kw
Reduction ratio:13.22
output speed:109 rpm.
Delivered torque:458 Nm
Safety factor on motor power:1.40
Mounting position :B3 foot mounted O/P horizontal
output: Hollow shaft 40 mm dia.
High quality Horizontal helical worm worm gear in stock
1- 3 Pcs Standard PBL Gearboxs 2.2 Kw , 170RPM Attached a photos of the required type of gearbox .
2- 50 Pcs Standard Helical Geared Motor 1.5 Kw - with your standard specifications
Powerful high torque 12v dc motors. I am interested in buying 30 Piece/Pieces. 10-20 RPM, 60-120W , 12-24v. 30 pcs
the output speed and input speed of Helical Geared Motor
When should I choose to use a dc motor speed control system?
The DC governor is required for the following occasions:
1. A wide speed range is required.
2. A faster dynamic response process is required.
3. An automatic smooth transition process is required for acceleration and deceleration.
4. When the low speed operation is required, the torque is large.
5. Need better excavator characteristics, can automatically limit the overload current to the set current.
The application of dc motor speed control system:
DC governor in CNC machine tools, paper printing, textile printing and dyeing, cable and cable equipment, packaging machinery, electrical machinery, food processing machinery, rubber machinery, biological equipment, printed circuit board equipment, laboratory equipment, welding and cutting, light industrial machinery , logistics and transportation equipment, rolling stock, medical equipment, communications equipment, radar equipment, satellite ground receiving systems and other industries are widely used.
The application of dc motor speed control system, the working principle of the DC governor is briefly introduced:
The DC governor is the device for adjusting the speed of the DC motor. The upper end is connected to the AC power supply, the application of dc motor speed control system, the lower end is connected to the DC motor, and the DC governor converts the AC power into two output DC power supplies, one input to the DC motor neodymium (stator), all the way Input to the DC motor armature (rotor), the DC governor adjusts the DC motor speed by controlling the armature DC voltage. At the same time, the DC motor gives a feedback current to the governor. The governor determines the speed of the dc motor speed control system according to the feedback current. If necessary, the armature voltage output is corrected to adjust the motor speed again.
The application of dc motor speed control system, DC motor speed control scheme generally has the following three ways: 1, change the armature voltage; 2, change the excitation winding voltage; 3, change the armature loop resistance. The most commonly used is the voltage regulation system, which is 1 (changing the armature voltage).
The application of dc motor speed control system,A modular DC motor governor integrates power supply, control and drive circuits, adopts a three-dimensional structure layout, and the control circuit uses micro-power components to realize current and voltage isolation and conversion with a photocoupler. Constants, integral constants, and differential constants are adjusted using a PID adapter. The governor is small in size and light in weight. It can be used alone or directly on adc motor speed control system to form an integrated DC speed-regulating motor. It can have all the functions that the governor should have.
The application of dc motor speed control system, the rapid development of modern industrial automation also provides a wide range of applications and updates for the application of dc motor speed control system: such as remote signal transmission, remote speed regulation, remote control speed control and control of high temperature environment, manual automatic integration.
Gear Lubricants knowledge introduction
Bevel gear, helical gears ,cylindrical gear (SPUR GEARS),spiral bevel gear,worm snail bar (WORM & WORM WHEELS),reducer (SPEED REDUCERS) / gearbox, etc.
Gear Lubricants referred gear oil, which is mainly used to lubricate the various mechanical gears.Gear oils and engine lubricants, as also the group consisting of mineral oil type (or synthetic) base oil and additives corresponding
A. Gear oils and gear oil can be divided into two categories industrial gear oils.
Gear oil Introduction
Vehicle gear oil is mainly used in automobile, engineering machinery transmission, steering, front and rear drive axle. Gearbox, universal joints needle bearings and other parts, but also for tanks, ships, and the corresponding load and working conditions
Gear member. Industrial gear oil is mainly used to open under various load conditions, semi-open, closed and Worm gear.
First, the gear oil working conditions and its role:
A variety of mechanical transmission gear mechanism, according to its different axes of the mutual positional relationship can be divided into parallel Shaft drive, intersect and cross shaft drive shaft drive. According to the shape of each type of transmission in different gears and teeth have different
Transmission methods, such as parallel shaft drive spur gears, helical gears, spur gears herringbone; Intersecting axis drive straight bevel gears, helical bevel gears, spiral bevel gears; staggered shaft drive has hyperbolic
Gears, worm, helical gear.
1. gear characteristics and working conditions of gear oil
(1) high-efficiency gear, generally cylindrical gear transmission efficiency up to 98%, compared with the bearing, gear
Equivalent curve radius wheel is small, wedge poor conditions.
(2) gear tooth is in line contact with the teeth, and therefore, the contact area, contact pressure units high.
General Automotive gear unit contact pressure up 2000-3000MPa, while higher hypoid gear up to
3000 a 4000MPa.
(3) gear not only line contact, there is sliding contact, especially between the hypoid gear, tooth
They have a higher relative sliding velocity, generally up to about 8m / o. This is in the high speed high load conditions, will
Thin film and even a partial rupture, leading to increased friction and wear, and even cause abrasions and bite.
(4) gear oil operating temperature is generally lower than the internal combustion engine oil, in large part with the ambient temperature changes
Changes, vehicle gear oil temperature is generally not higher than 100'C. Modern cars use hypoid gear, its axis
Line a large offset high gear side will ask the vehicle speed is high relative sliding speed, the oil temperature reaches
160'C a 180'C.
2. The role of gear oil in the gear
(1) reduce wear gears and other moving parts, prolong gear life.
(2) reduce friction, reduce power loss.
(3) dispersing the heat, since a certain cooling effect.
(4) to prevent corrosion and rust.
(5) reduces operating noise and reduce vibration and shock effect between gears.
(6) washing the dirt, especially among rushed tooth surface dirt, reducing wear and tear.
Second, the gear oil properties:
The purpose of the use of different gear oil, conditions of use varies widely with its performance as follows Claim:
1. Good oil and extreme pressure anti-wear
Oily refers gear oil can effectively adsorb oil film lubrication between moving surfaces, have lower
The nature of the low friction. Abrasion resistance refers to the oil held in the oil film between the moving parts, can effectively prevent the metal
Direct contact between the ability to add some of the active substance with polar molecules in the gear oil can improve its oil
Sex, oxides of these oily agents polar end and the metal surface adsorption occurs, to form a strong oily
Membranes, polar end oiliness agent may also form a metal soap type lubricant film and the metal oxide surface, to strengthen the tooth
Wheel lubrication oil, to prevent direct contact tooth surface, to reduce friction, thereby reducing wear. Some of the gear transmission
Move, often working under extreme pressure lubrication harsh conditions, the pressure, sliding speed and local temperatures
High, which requires adding extreme pressure gear oil additives. Extreme pressure additives are typically chemically active
Parathion, parathion chlorine-type or oil-soluble zinc compounds, these additives at high temperature and pressure conditions and extreme metal tooth shape
To iron chlorine, sulfur, phosphorus compounds or complexes, to form a high melting point of the inorganic film, this film has a very
Extreme pressure resistance properties, but also have the role of resistance to shock loading, can be effectively prevented under high load conditions
Tooth surface scratches and bite.
2. Good viscosity-temperature characteristics
All kinds of lubricating oil viscosity decreases with increasing temperature, the smaller the proportion of decline, its viscosity-temperature performance
The better. Especially in the automotive and construction machinery gear oil operating temperature range varies greatly, therefore, hope that the gear oil
Viscosity change with temperature as low as possible. Gear oil viscosity-temperature characteristics as well, when you start the viscosity is too large,
Easy to start, and run to a temperature high limit viscosity is too small. Viscosity gear oil is also important usability
One great energy, viscosity influence on the formation of the oil film. In general, high viscosity gear oil can effectively prevent the gear
And bearing damage, reduce noise and minimize leakage mechanical operation; low-viscosity oil to improve the operating efficiency of machinery plus
Transmission is stronger cooling and cleaning action and the oil has an advantage. In order to reduce fuel consumption, foreign introduced hair
Engine oil, gear oil of low viscosity. The advantages of low viscosity gear oil agitating resistance is small gear teeth, and
Has good low temperature fluidity, at low temperature to ensure lubrication. In recent years, the country has produced some of the low viscosity
Degree of gear oil, in order to change its lubricating properties and Poor's added some pleiotropic additives which reduce power loss
Is very favorable. Of course, in the use of its body, to strengthen the gear box sealed to prevent gear oil
Leakage.
3. Good low temperature fluidity
Automotive gear oil requirements at low temperatures can maintain the necessary fluidity, if the gear oil at a low temperature strip
Lower member wax precipitation, a sharp rise in viscosity, it can not ensure effective lubrication, low temperature start torque is increased, so that
Was an increase in fuel consumption.
Tests showed low apparent viscosity gear oil lubrication reliability of the vehicle starting an important shadow
Ring. Inflows driving bevel gear axle vehicles after the start, rear axle (front axle) gear oil is Jijian to upper rear axle housing
Cheng, when asked if this is too long, there may be due to lack of oil bearing burned. Therefore, the requirements of the vehicle so that the gear oil
With the apparent viscosity at low temperature of not more than 1.5X100000mPa.s. Vehicle gear oil specifications apparent bid out
1.5X100000mpa.s temperature viscosity when it determines the gear oil for the minimum temperature, the election
One important basis for gear oil used. In order to be able to adapt to the requirements of gear oil under low temperature in winter conditions, tooth
Round to join the oil pour point depressants, to improve its low temperature fluidity.
4. Good thermal oxidation stability
Gear oil under severe operating conditions, in air, water and metal catalyzed oxidation rate
Accelerate, the viscosity increases, resulting insolubles and corrosive substances and resin and asphaltene, nature deterioration and easy milk
Technology and produce foam, so Huanyouzhouqi shortened. To retard oxidation gear oils, typically added phenol in oil,
Amine or curing type antioxidant additives.
5. Good rust and corrosion
Rust resistance refers to the gear oil to protect gear from corrosion, thus ensuring performance and prolong gear so
Life. Gear during operation, the moisture in the air condenses into water gearbox, thus requiring gear
Oil should have good rust resistance. In order to enhance rust resistance gear oil, generally added salt or salts of fatty acids
And other anti-corrosion additives. Plus there is extreme pressure gear oil additives, extreme pressure additives due to sulphide, sulfur on copper
Easy to produce corrosion, therefore, to join in the gear oil in anti-corrosion additives, which can form on the metal surface protection
Protective film to prevent corrosion of metal corrosive substances.
6. Good anti-foam
Gear oils requires a good anti-foam to ensure under operating conditions, intense stir in gear
Mixing process produces less foam and easy to disappear.
I. Introduction
ZLYJ reducers are a kind of high-precision rigid gear assembly specially designed for the single-screw plastic/rubber extruder. Taking the JB/T 8853-2001 Cylindrical Gear Reducer as a reference for design, the products applies the high-strength low-carbon alloy steel for gears and gear shaft, with tooth flank carbureted, quenched and ground, to meet the gear precision at Level 6 (GB/T 10095) and hardness of tooth flank HRC54~62. A huge thrust bearing is mounted on the front of the output shaft to bear the thrust from the screw.
II. Use Scope
The input rotation of prime mover shall be ≤ 1500 rpm.
The peripheral speed of gear drive shall be ≤ 20m/s.
The working ambient temperature shall be within -40℃~45℃. Preheat the lubricating oil to above 0℃ or choose the low temperature lubricating oil when the ambient temperature is below 0℃.
Note:
Rotation is available both forwards and backwards. However, the high-speed shaft of some types of reducers has a single-way oil pump directing as defaulted to the output shaft which rotates clockwise.
III. Reducer Types
Product nameplates: When delivered, all reducers are attached with nameplates to specify the type, capability, production date, ex-factory number and other features for the purpose of maintenance, which shall not be removed at random.
Nameplate explanation:
ZLYJ |
VII. Fault Analysis and Solutions
Faults | Causes | Solutions | Faults |
The characteristics and application of dc motor:
Main advantages: Compared with AC three-phase asynchronous motor, the characteristics and application of dc motor has good starting characteristics and speed regulation characteristics, the characteristics and application of dc motor ,which is convenient for speed regulation. Therefore, for the production machinery with high starting and speed regulation performance, DC motor drive is often used.The characteristics and application of dc motor main disadvantage: you need to configure the DC power supply, the price is relatively expensive.
The characteristics and application of dc motor:
1) When the production machine needs to maintain a constant speed under different load conditions and the speed can be adjusted, a DC motor can be used. For example, a shunt DC motor can be used to drive a grinding machine, a planer, and the like.
NER GROUP CO.,LIMITED
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Attention:
◇ Cut off and prevent (by a warning tag, etc.) the re-connection of power supply to the motor before installing the couplings.
◇ Striking by hammer or other similar tools is not allowed when mounting the couplings and small gears onto the shaft end.
◇ Ensure the correct tension of belt when installing belt wheel.
◇ Do not install or uninstall the screw by force in respect of the output part.
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The helical gear advantages and disadvantages is a novel reduction gearing. It has many advantages, such as
Small size and light weight. Thanks to the optimized cash design concept, the weighted average of the performance makes the advantages complement each other. The transmitted torque is increased, the transmission ratio is finely graded, the load carrying capacity is enhanced, the use is durable, and the economy is good.
1. The helical gear advantages and disadvantages
The involute helical gear reducer has the characteristics of small size, light weight, high bearing capacity, high efficiency, long service life, convenient installation, wide motor power range and fine classification of transmission ratio. Can be widely used in equipment that needs to be decelerated in various industries.
2,The helical gear advantages and disadvantages
The helical gear worm reducer adopts the direct connection mode of the motor, and the structure is a first stage helical gear plus a first stage worm gear transmission.move. The helical gear advantages and disadvantages,The output is shaft mounted and comes in six basic mounting styles. It can be reversed and reversed. The helical gear adopts hard tooth surface, stable operation, large carrying capacity, working environment temperature -10 °C ~ 40 °C. The helical gear advantages and disadvantages。This product has the characteristics of large speed variation range, compact structure and convenient installation compared with similar products. Can be widely used in metallurgy, mining, lifting, light industry, chemical, transportation, construction and other mechanical equipment speed reduction mechanism.
The helical gear advantages and disadvantages,gears are one of the most important components in large-scale industrial equipment. A very important application of helical gear spur gear transmission. The helical gear advantages and disadvantages transmission has good meshing performance, which makes the transmission process tend to be stable and the noise is small. It has the advantages of relatively large coincidence degree, relatively low load between teeth, thereby improving the ability of the gear to withstand pressure, and the like. Helical gear transmission has important applications in the field of life and production. The helical gear advantages and disadvantages.Through the understanding of the characteristics and application of the helical gear transmission, we have a deeper understanding of the helical gear transmission and facilitate future use. The helical gear reducer is a novel reduction gearing. It adopts the advanced design concept of the optimized module combination system. The helical gear advantages and disadvantages.It is a helical gear reducer with small size, light weight, large transmission torque, stable starting, fine transmission ratio, and can be connected according to user requirements and various installation positions. The helical gear advantages and disadvantages,and the carrying capacity is strong and durable.
which of the following is not an advantage of helical gears.Both high-power gear reducers and low-power gear reducers use helical gears. In some cases, helical gears have an irreplaceable role; let us analyze the characteristics and shortcomings of the lower helical gears:
which of the following is not an advantage of helical gears. The characteristics of the helical gear: the number of teeth without root cutting is small; the degree of coincidence is large, the load of each pair of gears is reduced, and the bearing capacity of the gear is improved;which of the following is not an advantage of helical gears, the meshing property is good, the transmission is stable, and the noise is small.
which of the following is not an advantage of helical gears.Disadvantages of the helical gear: compact structure, when the helical gear is cut with a rack-shaped cutter, the number of small teeth without the undercut gear is less than that of the spur gear, so that a more compact structure can be obtained; the degree of coincidence is large, Under the same conditions,which of the following is not an advantage of helical gears, the meshing process of the helical gear is longer than that of the spur gear, that is,which of the following is not an advantage of helical gears, the coincidence degree is large, which reduces the load capacity of each pair of gears, thereby improving the bearing capacity of the gear, prolonging the service life of the gear, and making the transmission smooth. The manufacture of herringbone gears is cumbersome, the manufacturing process is complicated, and the cost.
Selection of general speed reducer includes condition, select the type, determine the specifications and other steps.
In contrast, the type selection is more simple, while providing accurate reducer working conditions, master reducer design, manufacture and use of key common feature is a reasonable choice reducer correct specifications. Specifications choose strength, thermal equilibrium, the shaft extension portion radial load and other conditions to be met.
1. Selecting by mechanical power or torque (strength checking)
The biggest difference is GM reducer and special reducer design selection process is that the former applies to all sectors, but the deceleration only by a particular design of working conditions, so users need to consider the selection of different correction coefficients according to individual requirements plant selection should be based on the actual motor power (not the gear unit rated power) play nameplate; the latter according to the user's special conditions designed to consider factors that, the design has been made generally considered, as long as the selection using a power less than or equal reduction The power rating can be, the method is relatively simple.
2. the heat power balance checking
Universal reducer allowable thermal power values are (under normal ambient temperature of 20 ℃, per hour, 100%, continuous operation, the power efficiency of 100%), the maximum allowed by the lubricant equilibrium temperature (usually 85 specific working conditions ℃) determined. The condition is not at the same time pressing the corresponding coefficient (sometimes integrated into a coefficient) be amended.
3. Checking shaft extension portion bear radial load
Universal reducer often required to input shaft, an output shaft extending middle part withstand the maximum allowed radial load to be limiting and should be checked, the manufacturer shall propose bold and increase the bearing shaft diameter exceeds requirements.
The gearbox is composed of a shifting transmission mechanism and a shifting operating mechanism. The main function of the variable speed transmission mechanism is to change the value and direction of the torque and speed; which of the following transmission gear ratios reduces transmission output shaft speed the most,the main function of the operating mechanism is to control the transmission mechanism to realize the transformation of the transmission ratio, that is, to realize the shifting to achieve the variable speed torque.which of the following transmission gear ratios reduces transmission output shaft speed the most
The simple transmission has the advantages of high efficiency, simple structure and convenient use, but the number of gears is small, and the range of i change is small (traction force and speed range are small), which of the following transmission gear ratios reduces transmission output shaft speed the most,and it is only suitable for some turners with few gears. If the range of i is increased, the size of the transmission is increased, and the shaft span is increased. In order to increase the number of steps without making the shaft span too large, a component type transmission can be used.which of the following transmission gear ratios reduces transmission output shaft speed the most. The so-called component transmission is usually composed of two simple transmissions,which of the following transmission gear ratios reduces transmission output shaft speed the most, wherein the number of gears is called the main transmission, and the less is called the auxiliary transmission.
The mechanical gearbox mainly uses the principle of gear reduction. which of the following transmission gear ratios reduces transmission output shaft speed the most.To put it simply, there are multiple sets of gear pairs in the gearbox, and the shifting behavior when the car is running, that is, the different gear pairs in the gearbox are operated by the operating mechanism. For example, at low speeds, let the gear ratio work with a larger gear pair, and at high speeds, let the gear ratio work with a smaller gear pair.
which of the following transmission gear ratios reduces transmission output shaft speed the most
1. Accelerated deceleration, which is often referred to as the variable speed gearbox.
2. Change the direction of the drive. For example, we use two sector gears to transmit the force vertically to the other.
3. Change the turning moment. Under the same power condition, the faster the speed turns, the smaller the torque the shaft receives, and vice versa.
4. Clutch function: We can separate the engine from the load by separating the two originally meshed gears, such as brake clutch.
5. Distribute the power. For example, we can use one engine to drive multiple slave shafts through the gearbox main shaft, thus realizing the function of one engine to drive multiple loads.