新型过约束球面并联式关节机构仿生设计

中国机械工程 ›› 2014, Vol. 25 ›› Issue (6): 723-726,730.

新型过约束球面并联式关节机构仿生设计

侯雨雷;胡鑫喆;周玉林

燕山大学,秦皇岛,066004

出版日期:2014-03-26 发布日期:2014-04-11
基金资助:
国家自然科学基金资助项目(51275443)；教育部科学技术研究重点项目(212012)；高等学校博士学科点专项科研基金资助项目(20111333120004)；河北省高等学校科学技术研究优秀青年基金资助项目(Y2011114)；河北省自然科学基金青年科学基金资助项目(E2012203034)

Bionic Joint Design Based on a Novel Over-constrained Spherical Parallel Mechanism

Hou Yulei;Hu Xinzhe;Zhou Yulin

Yanshan University,Qinhuangdao,Hebei,066004

Online:2014-03-26 Published:2014-04-11
Supported by:
National Natural Science Foundation of China（No. 51275443）;Research Fund for the Doctoral Program of Higher Education of China（No. 20111333120004）;Hebei Provincial Natural Science Funds for Young Scholars of China（No. E2012203034）

摘要/Abstract

摘要：

以3-RRR三自由度球面并联机构为原型，在其静力学及刚度特性分析基础之上，从仿生学角度出发，采用植入中心球面副的方式,提出了两种改进的可应用于人形机器人肩关节、髋关节的过约束四支链仿生关节机构，并实现了静力全部或部分卸载及刚度均衡。对引入的机构中心球面副进行结构改进，大幅扩大了机构实际工作空间。新型仿生关节机构的提出及其结构设计对人形机器人关节的研制具有理论指导意义和实际应用价值。

关键词: 球面并联机构, 仿生关节, 静力卸载, 刚度, 工作空间

Abstract:

Two bionic joint mechanisms with four over-constraint chains were proposed based on the 3-RRR spherical 3-DOF spherical parallel mechanism, which could be applied to the shoulder and hip joint for humanoid robot. In the view of bionics, the center spherical pair was introduced based on the statics and stiffness characteristics analysis, which can realize the unloading for full or part of the static and the equilibrium of stiffness. The practical workspace was expanded widely with the improvement of the structure of the center spherical pair. The presentation and structure design of the novel bionic joint mechanism possess an important theoretical significance and practical value for the development of the humanoid robot joint.

Key words: spherical parallel mechanism, bionic joint, mechanics unloading, stiffness, workspace

中图分类号:

TP24

侯雨雷, 胡鑫喆, 周玉林. 新型过约束球面并联式关节机构仿生设计[J]. 中国机械工程, 2014, 25(6): 723-726,730.

Hou Yulei, Hu Xinzhe, Zhou Yulin. Bionic Joint Design Based on a Novel Over-constrained Spherical Parallel Mechanism[J]. China Mechanical Engineering, 2014, 25(6): 723-726,730.

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