Composite cycloid planetary reducer

Abstract

The invention belongs to the technical field of reducers and particularly relates to a composite cycloid planetary reducer. The reducer comprises an input shaft, a crankshaft, a needle tooth retainer,a planetary carrier, an output disc and a cycloid casing; the needle tooth retainer comprises needle teeth, a central through hole and eccentric shaft holes; the input shaft comprises a driving gearand penetrates through the central through hole; the crankshaft comprises planetary gears and eccentric shafts; the eccentric shafts penetrate through the eccentric shaft holes; first bearings are arranged between the eccentric shafts and the hole walls of the eccentric shaft holes; the planetary gears mesh with the driving gear for transmission; the input shaft is sleeved with the planetary carrier and the output disc; the planetary carrier is connected with the crankshaft through second bearings; the output disc is connected with the crankshaft through third bearings; the cycloid casing is arranged outside the needle tooth retainer and is connected with the planetary carrier and the output disc through fourth bearings and fifth bearings; and cycloid gear teeth in meshing connection withthe needle teeth are arranged on the cycloid casing. The composite cycloid planetary reducer has the advantages of high transmission efficiency, convenience in assembly and maintenance and low machining cost.

Description

technical field [0001] The invention belongs to the technical field of reducers, in particular to a compound cycloidal planetary reducer. Background technique [0002] The gear reducer is a transmission device, which is often used between the prime mover and the working machine or the actuator to reduce the speed or increase the torque. It is widely used in modern machinery. Gear reducers are generally composed of gears, shafts, bearings and boxes, and their performance and efficacy directly affect the operation of the entire machine. Reducing the volume of the reducer and increasing its carrying capacity has always been an important goal in the design of the reducer. At present, the rapid development of robots, CNC machine tools, medical equipment, military and automation equipment and other fields put forward higher requirements for reducers, high load capacity, high precision, high speed, high reliability, high transmission efficiency, low noise, Low-cost, long-life red...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a compound cycloidal planetary reducer, which aims to solve the technical problems of low transmission efficiency, inconvenient assembly and maintenance and high processing cost of the cycloidal reducer in the prior art

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