Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Special double-degree-of-freedom flexible knee joint for humanoid robot

A technology of humanoid robot and degree of freedom, applied in the field of humanoid robot, can solve the problems of lack of flexibility, easy to be damaged by external impact, high stiffness of knee joint, etc., to eliminate rigid connection, increase motion stability, and increase telescopic flexibility Effect

Active Publication Date: 2018-06-12
CHANGZHOU UNIV
View PDF18 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art robots, the knee joint is mostly composed of a hinge with a fixed rotation center, that is, the knee joint is too rigid, lacks flexibility, and is easily damaged by external impacts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Special double-degree-of-freedom flexible knee joint for humanoid robot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] see figure 1 As shown, a special dual-degree-of-freedom flexible knee joint for a humanoid robot of the present invention includes a femoral half-joint composed of a joint shell A10, a flexible pad A11 and a uniform force plate A12, and a joint shell B20, a flexible pad B21 and a uniform joint The tibiofibular half-joint composed of the force plate B22 cross-connects the anterior cruciate ligament 41 and the posterior cruciate ligament 42 of the joint shell A10 and the joint shell B20, and connects the fibula spring 51 of the mechanical femur 6 and the mechanical fibula 7 at both ends. The tibial spring 52 connecting the mechanical femur 6 and the mechanical tibia 8 is installed in the flexible sealing ring 30 between the joint shell A10 and the joint shell B20; the joint shell A10 and the joint shell B20 have the same structur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a special double-degree-of-freedom flexible knee joint for a humanoid robot. The special double-degree-of-freedom flexible knee joint for the humanoid robot belongs to the field of humanoid robots, and is formed by a thighbone hemi-joint formed by a joint shell A, a flexible pad A and a back plate A, a tibiofibular hemi-joint formed by a joint shell B, a flexible pad B anda back plate B, an anterior cruciate ligament and a posterior cruciate ligament connected with the joint shell A and the joint shell B in an intercrossing way, a fibula spring with two ends being connected with a mechanical thighbone and a mechanical fibula, a tibia spring with two ends being connected with the mechanical thighbone and a mechanical tibia, and a flexible seal ring arranged betweenthe joint shell A and the joint shell B. The joint shell A and the joint shell B have the completely same structure and are symmetrically arranged; a spherical groove is formed in a part on which themiddle parts of the joint shell A and the joint shell B are close to each other; and a joint ball and a joint fluid are arranged in the spherical groove. The invention relates to the flexible knee joint which has no fixed hinge connection, has bending and twisting degrees of freedom, and is capable of producing tiny joint deformity.

Description

technical field [0001] The invention belongs to the field of humanoid robots, in particular to a flexible knee joint with two degrees of freedom specially used for humanoid robots. Background technique [0002] In the design of the robot, the design of the knee joint is particularly important, because the knee joint not only needs to realize the relative movement between the thigh and the lower leg, but also has a certain degree of flexibility, which can absorb the impact energy at the knee joint. In the prior art robots, the knee joint is mostly composed of a hinge with a fixed center of rotation, that is, the knee joint is too rigid and lacks flexibility, and is easily damaged by external impact. Therefore, designing a flexible knee joint based on the structural model of the human knee joint has certain application value. Contents of the invention [0003] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B25J17/02
CPCB25J17/0258
Inventor 班书昊李晓艳蒋学东
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com