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Overload impact resistant planetary reducer, robot joint and quadruped robot

A planetary reducer, anti-overload technology, used in springs/shock absorbers, mechanical equipment, components with teeth, etc., can solve the problems of large size, inability to be compact, and high manufacturing costs of reducer robots, and achieve the solution Feasible, compact, and low-cost to manufacture

Pending Publication Date: 2021-04-30
HZ UNITREE TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above solution needs to add a friction generator, which requires many parts and high manufacturing costs; at the same time, it needs to reserve an assembly space for the friction generator, resulting in a large size of the reducer and the robot, which cannot be compact

Method used

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  • Overload impact resistant planetary reducer, robot joint and quadruped robot
  • Overload impact resistant planetary reducer, robot joint and quadruped robot
  • Overload impact resistant planetary reducer, robot joint and quadruped robot

Examples

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specific Embodiment

[0062] The reducer component is a planetary gear 21;

[0063] The tooth surface portion is the outer tooth portion 11 of the planetary gear 21,

[0064] The buffer portion is the buffer layer 16 assembled on the inner side of the outer tooth portion 11;

[0065] When the external tooth portion 11 is subjected to an impact force, the buffer layer 16 is deformed, so that the external tooth portion 11 is displaced relative to the planetary gear shaft 15;

[0066] When the impact force received by the external teeth 11 disappears, the deformation generated by the buffer layer 16 disappears, so that the external teeth 11 are reset relative to the rotating shaft. The structure is simple, practical, and easy to manufacture.

[0067] A specific embodiment of the deformation through hole 14 provided in the buffer layer 16 of the present invention:

[0068] The buffer layer 16 defines at least one deformation through hole 14 capable of being deformed by impact force;

[0069] The def...

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Abstract

The invention discloses an overload impact resistant planetary reducer, a robot joint and a quadruped robot, and belongs to the technical field of planetary reducers, robot joints and quadruped robots. The overload impact resistant planetary reducer comprises a tooth surface part made of a rigid material and a buffer part capable of being elastically deformed; and the buffer part is made of a material which has certain rigidity and can be elastically deformed under impact force, and the buffer part and the tooth surface part are coaxially nested together to form a reducer part capable of preventing overload impact. Through continuous exploration and test, the tooth surface part made of the rigid material and the buffer part capable of being elastically deformed are arranged to form the reducer part capable of preventing overload impact, so that the reducer part can be elastically deformed under the impact force, energy during overload impact is effectively absorbed, transmission parts such as gears are protected, and the structure is simple and practical.

Description

technical field [0001] The invention relates to an overload shock-resistant planetary reducer, a robot joint and a quadruped robot, belonging to the technical field of the planetary reducer, the robot joint and the quadruped robot. Background technique [0002] At present, legged robots will inevitably fall down or be hit by other objects in the external environment during walking. When the above situation occurs, the external impact will be transmitted to the inside of the robot joints, and the transmission components inside the joints such as gears Such as causing overload impact, causing its structure to be damaged, and then causing the robot to not work normally. Therefore, there is a need for an overload impact protection structure, which can absorb the energy during overload impact, and then protect transmission parts such as gears. [0003] Chinese patent (publication number CN109591045A) discloses a highly integrated high-performance robot joint unit, including a mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H35/10F16H55/14F16H55/17F16F15/126
CPCF16H1/32F16H35/10F16H55/14F16H55/17F16F15/126F16H2055/176F16H1/2836F16F15/124B25J9/102F16H57/08F16H2057/085
Inventor 王兴兴杨知雨
Owner HZ UNITREE TECHNOLOGY CO LTD
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