High Quality and widely used Reducer
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The reducer is an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing. It is often used as a deceleration drive between the prime mover and the working machine. It plays a role in matching the speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.The reducer is an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing. It is often used as a deceleration drive between the prime mover and the working machine. It plays a role in matching the speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.The reducer is an independent component composed of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing. It is often used as a deceleration drive between the prime mover and the working machine. It plays a role in matching the speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.
- Q:Direct current motor and ac motor, which is large, good, who invented
- The advantages and disadvantages of dc motor and ac motor Dc motor has a rapid response, large starting torque, rotating speed of from zero to rated speed can provide the rated torque performance, but the advantages of dc motor is also its drawback, because the direct current machine to produce a constant torque under the rated load performance, the armature magnetic field and rotor magnetic field must be constant to maintain 90 °, this is about to borrow from the carbon brush and commutator. The carbon brush and the commutator produce sparks and carbon powder when the motor is rotated, so there is a limit to the use of the place, except for the damage of the component. Ac motor without carbon brush and commutator, free maintenance, strong, wide application, but if you want to achieve the equivalent of dc motor according to the characteristic performance must use complex control technology to achieve. The ac motor is divided into asynchronous motors and synchronous motors. The asynchronous motor is divided into single phase asynchronous motor, two-phase asynchronous motor and three-phase asynchronous motor according to the number of stator phases. Three-phase asynchronous motor structure is simple, reliable and low cost.
- Q:What is the difference between a three-phase synchronous motor and a three-phase asynchronous motor search
- We know that the three-phase power supply phase phase difference is the voltage on the phase between 120 degrees, three of the three-phase asynchronous motor stator winding on the spatial orientation also sent 120 degrees, so that when zhongtong into the three-phase power supply in the stator winding, stator windings creates a rotating magnetic field, the stator windings creates a rotating magnetic field, rotor conductors (cage) will cut the lines of magnetic force of a rotating magnetic field and induced current, the current in the rotor conducting bar and interact with a rotating magnetic field to produce electromagnetic force, electromagnetic force produced by electromagnetic torque drive rotor rotating magnetic field along the direction of rotation. In general, the actual speed of the motor is below the rotational speed of the rotating field. We call the three-phase motor an asynchronous motor. Three-phase synchronous motor is the three-phase generators of different working condition. There are N on three-phase synchronous motor rotor of magnetic pole, the pole to N - S - N - S - order, coil magnetic poles, all of the coil in series, the final ends, pick up on the rotor shaft of two copper on the slip ring, copper slip ring and the shaft is insulated.
- Q:How do ac motors keep moving in the same direction?
- Typically by capacitance phase out another phase Angle difference of alternating current (ac) effect on the secondary coil and main coil integrated into a rotating magnetic field up to cut off the secondary coil. As for the synchronous motor, the principle of some trouble, basic is asynchronous motor rotor into a rotor as dc motor. When it starts to become asynchronous start, starts in electricity, the rotor into sync, ha ha, also forgot to tell you that a speed ratio of the motor is rotating magnetic field of low speed asynchronous motor, the same is called synchronous motor, the speed of the rotating magnetic field is the synchronous speed.
- Q:Why does ac motor speed control system replace dc motor speed control system?
- Especially microprocessor used in PWM technology and the digitized, pattern is constantly renovated, from the initial voltage waveform sine pursuit, the sinusoidal current waveform, and then to sinusoidal magnetic flux; The development of PWM control technology has undergone a continuous innovation and continuous improvement from the optimum efficiency, the lowest torque ripple, and the elimination of noise. So far, new proposals have been made to further prove that the technology is in the ascendant.
- Q:Is the mainstream subway car traction motor, ac or dc?
- ac motor speed control "FM" adjusting the supply of the frequency of the alternating current motor, alternating current (ac) is a kind of VVVF by (FM) regulating device, commonly known as traction inverter, VVVF to dc traction motor inverter for ac supply, to adjust the motor speed can be adjusted by the frequency of the alternating current and torque can be controlled by adjusting voltage. In high power thyristor industrial production, the ac motor speed control easier, ac motor of low manufacturing cost, long life and other advantages will show it. And the current technology, the ac motor is almost always maintained during the use of the process, providing guarantee for the safe operation of subway vehicles
- Q:How does the current transformer in ac motor work?
- The electromagnetic current transformer is widely used in the electric system, and its working principle is similar to the transformer. The wiring of the current transformer, as shown in the left. The characteristics of the current transformer is: (1) a coil in series in the circuit, and as a result, the number of turns in a coil current depends on the load current of the circuit under test. And has nothing to do with the secondary current; (2) current transformer secondary coil of the current meter and relay to the coil impedance is very small, so under normal circumstances, current transformer run in to a short-circuit condition. The ratio of a current transformer to a second rated current is called the rated mutual inductance of a current transformer Because the current I1n is standardized, the secondary coil rated current I2n is uniformly 5 (1 or 0.5), so the mutual inductance ratio of current transformer is also standardized. The kn can also be approximated as the number of turns for the transformer one and the second coils, which is the number of turns in the kn = N1 / N2 type, the number of turns for one or two coils. Current transformer is used to measure large current.
- Q:What's the total number of ac motor governor? The most common, each principle, the detailed point, the master thank you Please be more careful, the principle means thank you
- Ac motor is the most ideal speed regulation in the current mode of speed adjustment, in other ways, it can be controlled by electromagnetic speed, variable speed and speed adjustment
- Q:What is the connection of ac motor
- A single phase motor has three terminals, two terminals are connected to the fire line, and one is connected to zero.
- Q:Permanent magnet motor is dc motor and ac motor
- Who says ac motors can't use permanent magnets? The permanent magnet field is synchronized with the rotating magnetic field, which is the permanent magnet synchronous ac motor.
- Q:What kind of motor can be added
- Governor has been in the industry dc motor speed regulation, conveyor belt speed, lamplight illume mediation, computer power supply cooling, dc fan, etc., used widely.
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