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Synchronous differential speed reducer

A technology for reducers and synchronous gears, which is applied to transmission parts, gear transmissions, belts/chains/gears, etc., which can solve the early fatigue of materials in eccentric motion and harmonics, affect the service life of reducers, and make it difficult to process and manufacture and other problems, to achieve the effect of light weight, smart structure and large range of transmission speed ratio

Pending Publication Date: 2019-06-25
高昌德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the smallest reducer is the harmonic reducer, but it also has the problems of eccentric motion and early fatigue of the material of the harmonic device; although the structure of the planetary reducer is simpler than that of the RV reducer, its gear ratio is not as good as that of the RV reducer. The RV reducer is large; although the gear ratio of the RV reducer is large, the crankshaft drive technology undoubtedly brings considerable difficulty to the processing and manufacturing, and the designed tooth shape is arc-shaped or square-triangular, and the meshing depth is very shallow. It is prone to failure and will also affect the service life of the reducer

Method used

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Examples

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Embodiment 1

[0025] Embodiment 1: It includes an H-shaped drive mechanism composed of a supporting turntable 5 and an input spindle 6, a fixed ring gear 1, a driven ring gear 2, a synchronous gear set composed of a first synchronous gear 3 and a second synchronous gear 4, and left and right ends Cover 7.

[0026] The rotational positions of the present invention can all be equipped with corresponding bearings.

[0027] The H-shaped driving mechanism includes a drive shaft 6 and a support turntable 5; one or several combinations of the first synchronous gear 3 and the second synchronous gear 4 are mounted on the support turntable 5, and a coaxial pair of the first synchronous gear 3 and the The second synchronous gear 4 constitutes a synchronous gear set.

[0028] The module of the fixed ring gear 1 is equal to the module of the first synchronous gear 3 meshed with it.

[0029] The module of the driven ring gear 2 is equal to the module of the second synchronous gear 4 it meshes with.

...

Embodiment 2

[0047] Embodiment 2: Since the robot production enterprises in my country are currently using RV reducers and harmonic reducers imported from Japan, if these reducers produced in Japan are to be replaced, it is necessary to ensure that the reducer of the present invention has the same external dimensions as the corresponding The model of RV reducer is consistent, and other mechanical properties and transmission ratios cannot be lower than Nissan RV reducer. This embodiment is a reducer designed for a key domestic robot research and development unit, and intends to replace the Nissan RV_40E_153 reducer (its transmission ratio N=153:1).

[0048] See Figure 5 , Figure 6 : Fixed ring gear 1, the number of teeth is ZA, the passive ring gear 2, the number of teeth is ZB, the first synchronous gear 3, the number of teeth is Za, the second synchronous gear 4, the number of teeth is Zb, the positioning fastening screw 8 of the synchronous gear set, the input gear Shaft 9, the number...

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Abstract

The invention relates to a synchronous differential speed reducer, belongs to the technical field of speed reducers, and particularly relates to the synchronous differential speed reducer applied to the fields such as robots, unmanned automobiles and rocket engines. The invention provides the synchronous differential speed reducer with a simple structure, a small volume, a large gear ratio, a capability on realizing various technical performances of a harmonic reducer and an RV speed reducer, a simplified and scientific structure, and flexibility in use. The synchronous differential speed reducer comprises a fixed gear ring, and is characterized in that the fixed gear ring meshes with a first synchronous gear; the first synchronous gear and a second synchronous gear are coaxial and fixed into a whole so as to form a synchronous gear set; the second synchronous gear meshes with a passive gear ring; the tooth numbers of the first synchronous gear and the second synchronous gear are equal; and the moduli of the first synchronous gear and the second synchronous gear are unequal.

Description

technical field [0001] The invention belongs to the technical field of reducers, and specifically relates to a synchronous differential compensation reducer used in fields such as robots, unmanned automobiles, and rocket engines. Background technique [0002] For a long time, precision reducers used in robots have been provided by countries such as the United States, Germany, Japan, and the Czech Republic. Among them, 75% of the world's precision reducer market is occupied by Japan's Harmonaco and Nabtesco. Nabtesco The production of RV reducers accounts for about 60% of the share, and the harmonic reducer produced by Harmonasco accounts for about 15% of the share. Although my country's robot industry has developed rapidly in recent years, the reducers and controllers used in robots are imported from Japan, and the production costs are controlled by foreign suppliers. The RV reducer and the harmonic reducer are basically developed on the basis of the cycloid reducer, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/023
Inventor 高昌德
Owner 高昌德