Classification and characteristics of helical worm gear reducer

The reducer is generally used for the transmission equipment with low speed and high torque. The motor, internal combustion engine or other high-speed power is meshed with the large gear on the output shaft through the gear with less teeth on the input shaft of the reducer. The ordinary reducer also has several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of large and small gears is the transmission ratio. [1]
classification
Reducer plays the role of matching speed and transmitting torque between prime mover and working machine or actuator. It is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque. It has a wide variety, different models and different uses. There are many kinds of reducers, which can be divided into gear reducer, worm reducer and planetary gear reducer according to the transmission type; According to different transmission stages, it can be divided into single-stage and multi-stage reducers; According to the gear shape, it can be divided into cylindrical gear reducer, conical gear reducer and conical cylindrical gear reducer; According to the arrangement of transmission, it can be divided into deployable reducer, shunt reducer and coaxial reducer. [1]
characteristic
The main feature of worm gear reducer is that it has reverse self-locking function and can have large reduction ratio. The input shaft and output shaft are not on the same axis or plane. However, the general volume is large, the transmission efficiency is not high, and the accuracy is not high. The harmonic drive of harmonic reducer uses the controllable elastic deformation of flexible elements to transmit motion and power. It has small volume and high precision, but its disadvantages are limited service life of flexible wheels, no impact resistance and poor rigidity compared with metal parts. The input speed cannot be too high. Planetary reducer has the advantages of compact structure, small return clearance, high precision, long service life and large rated output torque. But the price is slightly expensive. Gear reducer has the characteristics of small volume and large transmission torque. The gear reducer is designed and manufactured on the basis of module combination system. There are many motor combinations, installation forms and structural schemes. The transmission ratio is graded carefully to meet different service conditions and realize mechatronics. Gear reducer has high transmission efficiency, low energy consumption and good performance. Cycloid pin gear reducer is a transmission model based on the principle of cycloid pin tooth meshing planetary transmission. It is an ideal transmission device. It has many advantages, has a wide range of uses, and can run forward and backward.