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A flexion-extension joint based on torsional transmission

A technology of joints and transmission parts, which is applied in the field of transmission, can solve problems such as immature technology, unpredictable failure damage, and insufficient stability of performance, and achieve the effects of reliable performance, simple structure, and low cost

Inactive Publication Date: 2015-12-09
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to immature technology, unstable performance, unpredictable failure and inability to withstand minor damage, these are the unfavorable factors for the use of artificial muscles in bionic manipulators.

Method used

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  • A flexion-extension joint based on torsional transmission
  • A flexion-extension joint based on torsional transmission
  • A flexion-extension joint based on torsional transmission

Examples

Experimental program
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Embodiment Construction

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to figure 1 , figure 2 , a flexion-extension joint based on torsional transmission, comprising an inverted T-shaped base formed by a support rod 13 vertically fixed on a fixed base plate 12, and an arm rod for seesaw movement around the top fulcrum of the support rod is provided on the top of the support rod 13 14. The two sides of the arm bar 14 located at the apex of the support bar 13 are the root end of the arm bar and the tip end of the arm bar respectively. The lower part of the motor is sequentially connected with a limited force member 17, a reducer 18 and a motor 19. The motor 19 is fixed on the fixed bottom plate 12 of an inverted T-shaped base. The ring gear of the gear is also fixed with the fixed base ...

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Abstract

The invention discloses an extensible joint based on torsional transmission. The extensible joint comprises an inverted-T-shaped base formed by vertically fixing a support rod on a fixed bottom plate; an arm lever which seesaws around a top, as a fulcrum, of the support rod is disposed at the top of the support rod; the parts, on two sides of the top of the support rod, of the arm lever are an arm lever end and an arm lever tip, respectively; the arm lever end and the arm lever tip are hinged to torsional transmission devices through hinging members, respectively; a force limiter, a reducer and a motor are sequentially connected under each torsional transmission device; the motors are fixed on the fixed bottom plate of the inverted-T-shaped base. The extensible joint is simple in structure and high in response speed; the torsional transmission devices can be made of multiple soft ropes; even experiencing certain damage, each joint can complete actions; the extensible joint is reliable in performance and low in cost.

Description

technical field [0001] The invention relates to the technical field of transmission, in particular, the invention relates to a flexion and extension joint based on torsion transmission as a component unit of a bionic mechanical arm. Background technique [0002] The motion of the mechanical arm of prior art is to realize with hydraulic system and artificial muscle. [0003] The execution of the mechanical arm can rely on the hydraulic system. The disadvantages of hydraulic transmission include (1) the use of hydraulic transmission requires high maintenance, and the working oil must always be kept clean; (3) The maintenance of hydraulic components is more complicated and requires a higher technical level; (4) Oil is used as the working medium, and there is a fire hazard on the working surface; (5) The transmission efficiency is low. Due to the problems of the hydraulic system described above, as well as the slow response of the medium, the response of the hydraulic system is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25J17/00
Inventor 刘正义
Owner FUJIAN UNIV OF TECH