Two-speed output planetary gear reducer

Abstract

The invention provides a double-speed output planetary gear speed reducer and relates to a speed reducer. The speed reducer comprises a machine base part, a stator part I, a stator part II, a rotor part I, a rotor part II, a controller I, a controller II, a rotating shaft bracket part and a dual planetary gear speed reducing part. In the operation process of the speed reducer, the output rotatingspeed of an output shaft I is related to the difference between rotating speeds of two motors; the two motors can be in high-speed operation state all the time; the rotating direction of the output shaft I of the speed reducer can be changed under the condition that rotating directions of the two motors are not changed, so that a load device is driven to achieve the functions of frequently accelerating and decelerating, frequently starting and stopping and even frequently changing the rotating direction of the load device; the speed reducer is capable of ensuring that the motors operate underthe high-efficiency operation state; meanwhile, the response speed can be improved when the rotating direction of the load device is changed by the speed reducer.

Description

technical field [0001] The present invention is a double-speed output planetary gear reducer, which relates to a reducer, in particular to a double-speed output which adopts the speed difference when two motors respectively drive two planetary gear reducers to obtain low-speed output Planetary gear reducer. Background technique [0002] The reducer of joint robot mainly adopts RV reducer. The RV reducer has the advantages of large transmission ratio and large output torque. The disadvantages of complex structure and high cost of RV reducer also restrict the popularization and application of RV reducer. In the application of joint robots, RV reducers gradually replace harmonic reducers. The strength of the flexible gear of the harmonic reducer is low, resulting in a small output torque and a short service life of the harmonic reducer. The RV reducer is used for joint robots with large load torque, and the harmonic reducer is used for joint robots with small load torque. ...

AI Technical Summary

Problems solved by technology

Compared with the RV reducer or harmonic reducer, the transmission ratio of the planetary gear reducer is small, which cannot meet the requirements of the joint robot for the transmission ratio

[0003] During the operation of joint robots, electric vehicles, electric mopeds, and washing machines, frequent accelerations, decelerations, frequent starts, stops, and even frequent changes in the direction of rotation of their motors are required. These motion characteristics make the motors work at low efficiency. run in state

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