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What are the classifications of geared motors? Do you know Shuxin come to tell you!


1. According to motors , there are mainly the following categories.

  (l) AC (including with brake) motors: There are three-phase AC motors (12OW one 30kw) and single-phase AC motors (IW one 1o2w).

  (2) DC (including with brake) motors: there are electromagnetic (several watts to tens of kilowatts) and permanent magnet (several watts to several kilowatts) DC motors.

  (3) AC (DC) servo motor.

  (4) Various control motors and special motors.

2. According to the gearbox transmission method, there are mainly the following categories.

  (l) Gear transmission: including helical gear, worm gear, bevel (bevel) gear, planetary gear. Gear transmission is the most classic transmission, single-stage transmission efficiency is over 98%, simple structure, high reliability, long life (design life 20 years), large power range (up to 30kw).

  (2) Cycloidal pin wheel: The planetary transmission principle is adopted. The cycloid wheel and the pinion mesh with each other to realize multi-tooth simultaneous meshing transmission, avoiding the possibility of broken teeth. It has a compact structure, small size, and a large transmission ratio. The first-stage speed ratio can reach 1: 119, and the average efficiency of a single-stage transmission can reach more than 90%.

  (3) Harmonic transmission: The mechanical wave is generated by the harmonic generator, and then the flexible gear is deformed to generate the relative displacement between the teeth to achieve the purpose of transmission. The advantages are that the single-stage transmission ratio can reach 1:50, the number of meshing teeth is high, the bearing capacity is high, the volume is small, the weight is light, and the single-stage transmission efficiency reaches 100% to 90%. However, the flexible wheel is made of a thin-walled structure and works under repeated deformation conditions, which requires high heat treatment. Generally used for medium and small power transmission, the motor power is below 10kw.

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