Floating load balancing mechanism for planet wheels and speed reducer thereof

Abstract

The invention discloses a planet wheel float equal-load device and a speed reducer. Wherein, it has a inner tooth ring; the tooth of planet wheel is meshed to the outer tooth of sun wheel and the inner tooth of inner tooth wheel; the fixing axle is integrated with the planet support. It is characterized in that: the fixing axle and the planet wheel are float connected, while the fixing axle on the planet wheel support is a flat square axle mounted with a flat square sleeve; the inner hole of said sleeve can move along the axle of flat square axle but can not rotate; the planet wheel is mounted on the flat square sleeve, whose inner hole is movably matched with the outer circle of sleeve; the planet wheel can rotate on the outer circuit and move on the axle of flat square axle, to form a float equal load. The inventive speed reducer, via equal load, can improve the load strength of tooth surface, prolong the service life of gear wheel, confirm the transmission stability and reduce the noise.

Description

Technical field: [0001] The invention relates to an involute planetary gear transmission in mechanical transmission, in particular to a planetary wheel floating load sharing mechanism and a reducer thereof. Background technique: [0002] In the involute planetary gear transmission, several planetary gears are usually used to transmit loads at the same time, split the power and reasonably use internal meshing, so it has a series of advantages: such as compact structure, small size, light weight, transmission ratio range Large, high transmission efficiency, stable operation, low noise, and the ability to synthesize and decompose motion, etc., so it is widely used in various machinery as a deceleration, speed-up and variable-speed transmission device. In the transmission process, it is very important to share the load of each meshing point. While ensuring the high manufacturing accuracy of each part, it is necessary to adopt a mechanism that can compensate for manufacturing err...

AI Technical Summary

Problems solved by technology

The disadvantages of this load sharing method are:

[0004] 1. Due to the limitation of the thickness of the oil film, it is only suitable for occasions where the manufacturing precision of the transmission is high and the error is small; if the error is large, the error cannot be compensated by the elastic deformation of the oil film

[0005] 2. Because there is a radial gap between the intermediate ring and the planetary wheel hole, it is in line contact or point contact during operation, the stress state is not good, and the wear is aggravated, so the noise is large and the service life is short

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