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Differential speed reducer and planetary differential speed reduction unit

A differential deceleration and planetary technology, applied in the direction of transmission, transmission parts, mechanical equipment, etc., can solve the problems of low transmission efficiency and complex structure

Pending Publication Date: 2021-04-02
钟永先
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology disclosed in the Chinese patent application with the publication number CN11677819A further solves the contradiction between the transmission ratio and the volume to a certain extent, but under the same application conditions, its structure is still relatively complicated or the transmission efficiency is low
The Chinese patent application with the publication number CN112013094A partially solves the vibration problem of the similar differential reducer disclosed in applications such as CN109268452A, CN111005987A, and CN111022588A, but there is a need in the technical solutions of this type of invention application The problem that the eccentric bearing bears twice the force of the cycloidal pinwheel reducer with the same output torque or the eccentric bearing on the reducer with small tooth difference, and other bearings in this kind of reducer have to bear additionally equal to The above-mentioned force problem has not been solved

Method used

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  • Differential speed reducer and planetary differential speed reduction unit
  • Differential speed reducer and planetary differential speed reduction unit
  • Differential speed reducer and planetary differential speed reduction unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0041] Figure 1 to Figure 6 Six embodiments of the present invention are illustrated separately in a simplified form. 1, 4, 7, 10, 14, 79 are transmission parts A that have a transmission relationship with transmission parts B and C, if 2, 5, 8, 11, 15, 81 are called transmission parts B, then 3, 6 , 9, 12, 16, 80 is the transmission part C; here except Image 6 The transmission member A in the embodiment described above rolls along a straight line, and the rest can perform planetary motion with the axis lines of the transmission members B and C as the revolution centers. Using the knowledge of machinery and reducers in the prior art and referring to this specification, it is possible to implement the various implementations shown in the illustrations and more implementations derived from them; for example, according to Figure 4 The shown embodiment using flat belt 13, pulley 10, 11, 12 can be associated with the embodiment of synchronous pulley, sprocket, etc.; the embodi...

Embodiment 7

[0043] Figure 7 with Figure 9 It is an embodiment of the present invention with a structure similar to a planetary reducer. This embodiment has 4 transmission parts A, that is, 4 planetary gears 19, these 4 planetary gears have a transmission relationship with the internal gears 20, 21 at the same time, the internal gear 20 is fixedly connected to the casing 28, if the internal gear 20 is called a transmission Part B, then the internal gear 21 is the transmission part C; the planetary gear, the internal gear 20 or the internal gear 21 can be made into a shifting gear so that the part 39 on the planetary wheel that meshes with the internal gear 20 and the part 38 that meshes with the internal gear 21 While coaxial, it can have different transmission ratios with the internal gears 20 and 21 respectively. Between the planetary wheel and the planetary shaft 30 is a needle roller bearing 27, the planetary shaft is contained on the planet carrier 35, and the planetary shaft two ...

Embodiment 8

[0045] Figure 8 with Figure 10 It is an embodiment of the present invention with a structure similar to a planetary reducer with pin gears. This embodiment has 4 transmission members A, that is, 4 planetary gears 42, and these 4 planetary gears have the same function as the pin gear and pin gear 44 formed by the pin tooth pin 58 and the pin tooth pin sleeve 59 directly mounted on the casing 43. Transmission relationship, if the pin gear formed directly with the housing is called the transmission part B, then the pin gear 44 is the transmission part C. The planetary gear has a part 46 meshing with the pin gear on the casing, a part 47 meshing with the pin gear 44 , and a part 45 meshing with the gear 53 on the sun shaft 73 . Between the planetary wheel and the planetary shaft 70 is a needle bearing 69 , and the planetary shaft is fixed on the planetary carrier 71 . The planet carrier is connected to the sun shaft through bearings 57 and 55 , one end of the sun shaft is con...

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PUM

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Abstract

The invention discloses a differential speed reducer and a planetary differential speed reduction unit, and relates to the field of mechanical and electrical integration and mechanical transmission, in particular to the field of speed reduction units, robots and multipurpose tools. In order to further improve the technical level of an existing speed increaser and an existing speed reducer, the speed reducer achieves acceleration and deceleration transmission through relative rotation generated between transmission pieces which have a transmission relation with one transmission piece at the same time, are different in transmission ratio and can be close to the transmission ratio to the maximum degree. When the size of the speed reducer based on a transmission method is the same as that of aspeed reducer in the prior art, the range of the transmission ratio is larger, meanwhile, higher transmission power is achieved, and the structure is simpler than that of the speed reducer in the prior art.

Description

technical field [0001] The invention relates to the field of mechanical transmission and electromechanical integration, in particular to the fields of reducers, robots and bionic robots. Background technique [0002] Among the existing disclosed technologies, the simplest and common increasing and reducing transmission device is to use gears, sprockets, synchronous pulleys or pulleys, etc. to use the transmission ratio between transmission parts to realize constant speed or increasing and reducing transmission. of. More complex planetary reducers, worm gear reducers, harmonic reducers, small tooth difference reducers, cycloidal pin wheel reducers and RV reducers solve the problem of transmission ratio, transmission rigidity, transmission accuracy and volume to varying degrees. The contradiction between weight and weight, among which the contradiction between the transmission ratio of the planetary reducer and the volume and weight is still relatively large; the efficiency o...

Claims

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Application Information

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IPC IPC(8): F16H37/02F16H57/08F16H57/023
CPCF16H37/02F16H57/023F16H57/08F16H2037/048F16H2057/02086
Inventor 钟永先
Owner 钟永先