Shock absorber for rotational joint and shock absorption method thereof

A technology of rotating joints and shock absorbers, which is applied in the direction of spring/shock absorber, shock absorber, rotation vibration suppression, etc., can solve the problems of poor stiffness and damage of rubber shock absorbers, reduce rotation errors and ensure effectiveness , to ensure the effect of uniformity

Pending Publication Date: 2021-05-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rigidity of the rubber shock absorber is poor, and it is easy to cause damage when impacting at a certain angle

Method used

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  • Shock absorber for rotational joint and shock absorption method thereof
  • Shock absorber for rotational joint and shock absorption method thereof

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] The object of the present invention is to provide a shock absorber for a rotary joint and its shock absorbing method to solve the above-mentioned technical problems. The driven connection part is directly connected to the active hub through a strip spring, and the The impact force acting on the driven connection part is buffered to reduce the dynamic load of the active hub and the driving steering gear during the rotation process, so as to help improve t...

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Abstract

The invention provides a shock absorber for a rotational joint and a shock absorption method of the shock absorber. The shock absorber comprises a driving hub and a driven connecting part, and the driving hub is connected with the driven connecting part through at least one strip-shaped plate spring capable of being bent in the circumferential direction of the driving hub. When the plurality of strip-shaped plate springs are arranged, the strip-shaped plate springs are arranged in the circumferential direction of the driving hub at equal intervals, for one thing, the characteristic that the strip-shaped plate springs can elastically deform in the circumferential direction is utilized, when the driven connecting part is impacted, the strip-shaped plate springs deform and absorb vibration and impact energy, for another thing, the characteristic that the rigidity of the strip-shaped plate springs is large is utilized, when the driving hub rotates forwards or reversely to drive the driven connecting part to rotate through the strip-shaped plate springs, the deformation of the strip-shaped plate springs is relatively small, and then the rotation error of the rotational joint can be fully reduced; and when the plurality of strip-shaped plate springs are arranged, the strip-shaped plate springs are arranged in the circumferential direction of the driving hub at equal intervals, and the shock absorption uniformity between the driving hub and the driven connecting part is further guaranteed.

Description

technical field [0001] The invention relates to the technical field of shock absorption for robots, in particular to a shock absorber for a rotary joint and a shock absorption method thereof. Background technique [0002] At present, the footed robot installs a servo on the hip joint to drive the thigh, installs a servo on the hip joint and drives the lower leg through a belt transmission, and the motion posture of the robot depends on the high-precision torque control of the steering gear. However, there is no reduction in the joint of the footed robot. Vibration device, the vibration and impact force generated during the movement of the robot increases the motion load of the steering gear, which limits the application of the legged robot. [0003] Patent document CN112141236A discloses a wheel-footed robot leg system with shock-absorbing function, which is provided with a spring shock-absorbing system installed between the wheel-foot mechanism and the calf mechanism, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/121F16F15/16B25J19/00
CPCB25J19/0091F16F15/1215F16F15/1218F16F15/161F16F2222/12F16F2238/022
Inventor 李宏才王伟达徐丽丽杨超
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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