Speed Reduce
Reducer principle
The reducer plays the role of matching the speed and transmitting torque between the prime mover and the working machine or the actuator. The reducer is a relatively precise machine. The purpose of using it is to reduce the speed. Shanghai reducer worm reducer and planetary gear reducer According to the different transmission stages, it can be divided into single-stage and multi-stage reducers. The shape of the factory wheels can be divided into cylindrical gear reducers, bevel gear reducers and conical-cylindrical gear reducers; they can be divided according to the transmission arrangement. It is an expandable, split-flow and co-entry shaft reducer. The reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid shell. It is often used as a reduction transmission device between the original moving part and the working machine. It plays a role in matching the speed and transmitting torque between the prime mover and the working machine or the actuator. It is widely used in modern machinery.
working principle
The reducer is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque?
Speed ratio = motor output revolution ÷ reducer output revolution ("speed ratio" is also called "transmission ratio")
1. Know the motor power, speed ratio and use coefficient, find the torque of the reducer as follows: reducer torque = 9550 × motor power ÷ motor power input revolution × speed ratio × use coefficient
2. Know the torque and the output speed of the reducer and the use coefficient, and find the motor power required by the reducer as follows: motor power = torque ÷ 9550 × motor power input speed ÷ speed ratio ÷ use coefficient
There are many types, different models, and different types have different uses. There are many types of reducers. According to the transmission type, they can be divided into gear reducers, worm reducers and planetary gear reducers; according to the transmission stages, they can be divided into single-stage and multi-stage reducers; according to the gear shape, they can be divided into cylindrical gear reducers. According to the transmission layout, it can be divided into expansion type, split type and coaxial type reducer.
product category
Planetary gear reducer
The following are commonly used reducer classifications:
1, cycloid reducer
2, hardened cylindrical gear reducer
3, planetary gear reducer (used in workshop)
1) The ring gear is fixed, the sun gear is active, and the planet carrier is passive. It can be seen from the demonstration that this combination is a reduced speed transmission, and the transmission ratio is generally 2.5-5, and the steering is the same.
Planetary gear reducer
4. Soft tooth surface reducer
5, three-ring reducer
6, crane reducer
7, worm reducer
8. Shaft mounted hard tooth surface reducer
9, continuously variable transmission
The main feature of worm gear reducer is that it has reverse self-locking function, which can have a larger reduction ratio. The input shaft and output shaft are not on the same axis or on the same plane. But generally the volume is large, the transmission efficiency is not high, and the accuracy is not high. The harmonic drive of the harmonic reducer uses the controllable elastic deformation of the flexible element to transmit movement and power. The volume is small and the accuracy is high. However, the disadvantage is that the flexible wheel has limited life and is not resistant to impact. The rigidity is compared with metal parts. difference. The input speed cannot be too high. The advantages of planetary reducer are compact structure, small return clearance, high precision, long service life, and large rated output torque. But the price is slightly more expensive.
