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Reducers and Robots

A technology of reducer and eccentric shaft, which is applied in the field of robotics, can solve the problems of improving the life of the whole machine that cannot be maximized, and achieve the effects of improving strength, prolonging service life, and prolonging the life of the whole machine

Active Publication Date: 2022-05-31
GREE ELECTRIC APPLIANCES INC
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  • Description
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Problems solved by technology

[0003] The Chinese invention patent application with the patent publication number CN105605159A discloses an eccentric oscillating planetary gear device, which increases the carbides on the surface of the eccentric shaft by applying curing treatment to the eccentric shaft, thereby improving the durability of the eccentric shaft, but this This method only considers the impact of the increase in the life of the eccentric shaft on the life of the whole machine, and cannot maximize the life of the whole machine

Method used

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Embodiment Construction

[0023] Fig. 1 is a cross-sectional view of the RV reducer complete machine, mainly showing the key components of the second-stage transmission of the RV reducer.

[0024] The RV reducer also includes a needle roller 14, a needle gear housing 15, an input shaft 16 and a support member 17, and the cycloidal wheel 13 is mounted on the needle gear

[0029] The surface of the eccentric shaft 11 adopts a carburizing heat treatment process for surface heat treatment.

[0030] The surface hardness of the eccentric shaft 11 after heat treatment is 62HRC~64HRC. After heat treatment of the eccentric shaft 11 in the prior art

[0031] In one embodiment, the inner surface hardness of the shaft hole of the cycloidal wheel 13 after heat treatment is 58HRC˜62HRC.

[0033] The eccentric wheel and the cycloidal wheel 13 all use low carbon steel as the base material.

[0034] In this embodiment, according to the mass fraction, the iron of the low carbon steel includes 0.17% to 0.23% of C, and 0.17% ...

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Abstract

The application provides a reducer and a robot. The reducer includes an eccentric shaft (11) and a cycloidal wheel (13). The cycloidal wheel (13) is provided with a shaft hole, the eccentric shaft (11) is arranged in the shaft hole, and the eccentric shaft (11) and the inner wall of the shaft hole Needle bearings (12) are arranged between them, and the inner surface of the shaft hole of the cycloidal wheel (13) is subjected to surface heat treatment through a carbonitriding heat treatment process. According to the reducer of the present application, it is possible to optimize the heat treatment of some parts engaged with the needle bearings, so as to prolong the service life of the reducer as a whole.

Description

Reducers and Robots technical field [0001] The application relates to the field of robotics, in particular to a reducer and a robot. Background technique [0002] The RV reducer is mainly a new type of a Cycloid pinwheel planetary drive reducer, RV reducer is mainly used in the joint parts of industrial robots, based on the According to the requirements of use, the RV reducer proposes high transmission precision, small backlash, large output torque, strong impact resistance, compact structure, High transmission efficiency requirements, these requirements put forward high requirements for the performance of parts, and crankshafts, needle roller bearings and cycloids The wheel bearing hole meshing transmission belongs to the connecting part of the first-stage transmission and the second-stage transmission. According to theoretical calculation, the needle roller shaft is here. The life of the bearing determines the life of the whole machine; according to the experimenta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32F16H55/06F16C3/22C22C38/02C22C38/04C22C38/40B25J17/00
CPCF16H1/32F16H55/06F16C3/22C22C38/02C22C38/04C22C38/40B25J17/00F16H2001/327F16H2001/323F16H2057/02069F16C2204/62
Inventor 钟成堡刘成孙豹史宝强程中甫
Owner GREE ELECTRIC APPLIANCES INC
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