A flexible leg structure of a planar five-bar mechanism

A five-bar mechanism and flexible leg technology, which is applied in the field of the flexible leg structure of a plane five-bar mechanism, can solve the problems of poor load-carrying capacity of the series mechanism, reduced reliability and durability of parts, and damage of four-legged robot parts, etc. The effect of environmental adaptability, fast motion response, and superior dynamic performance

A five-bar mechanism and flexible leg technology, which is applied in the field of the flexible leg structure of a plane five-bar mechanism, can solve the problems of poor load-carrying capacity of the series mechanism, reduced reliability and durability of parts, and damage of four-legged robot parts, etc. The effect of environmental adaptability, fast motion response, and superior dynamic performance

CN105966491BActive Publication Date: 2017-12-26HEBEI UNIV OF TECH

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  • A flexible leg structure of a planar five-bar mechanism
  • A flexible leg structure of a planar five-bar mechanism
  • A flexible leg structure of a planar five-bar mechanism

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiment is a specific implementation carried out on the premise of the technical solution of the present invention, and provides detailed implementation methods and processes, but it is not used as a limitation to the scope of protection of the claims of the present application.

[0025] The flexible leg structure of the planar five-bar mechanism designed by the present invention (be called for short leg structure, refer to Figure 1-8 ) includes three large modules (three major parts): pitch drive joint module (referred to as pitch motion joint) 1, link structure module (referred to as link structure) 2 and toe module (referred to as toe) 3; pitch motion joint module 1 above the linkage module 2 and the toe module 3 below the linkage (see figure 1 );

[0026] The pitch drive joint 1 (see figure 2 , image 3) includes joint support 101, No. 1 ...

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Abstract

The invention discloses a flexible leg structure with a plane five-rod mechanism. The flexible leg structure is characterized by comprising a pitching drive joint, a foot tip and a connecting rod mechanism. The pitching drive joint comprises a variable stiffness driving flexible joint, a drive motor, two harmonic reducers, a supporting frame, a synchronous pulley and a synchronous belt. The foot tip comprises a three-dimensional mechanical sensor, a three-dimensional mechanical sensor support and a foot arch. The bottom of the three-dimensional mechanical sensor is connected with the three-dimensional mechanical sensor support. The bottom of the three-dimensional mechanical sensor support is connected with the foot arch. The connecting rod mechanism comprises ten hinge points (A), (B), (C), (D), (E), (F), (G), (H), (R) and (I). Connecting rods are hinged to a conventional four-rod mechanism, a four-rod mechanism with a spring rod and a plane pentagon five-rod mechanism through the ten hinge points. The hinge points (A), (R) and (I) are used for fixing the connecting rod mechanism to the pitching drive joint.

Description

technical field [0001] The invention relates to multi-legged robot platform technology, in particular to a flexible leg structure of a planar five-bar mechanism. This structure can be used for quadruped robots. Background technique [0002] In the existing multi-legged robot platform mechanism research, the mechanical structure design of the quadruped robot is the key to the whole multi-legged robot system, which directly affects the robot's load capacity and dynamic performance. The design of the mechanical structure needs to take into account many aspects. On the one hand, the robot’s load capacity and impact resistance require the robot to have a high-strength support structure and ingenious flexible buffer links; on the other hand, the characteristics of the robot’s high speed, high mobility and high adaptability require the robot to have Low motion inertia and high rigid transmission ensure fast and precise motion response. [0003] At present, the leg structure of th...

Claims

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Application Information

Patent Timeline
26 Dec 2017
Publication
CN105966491B
IPC
B62D57/032
CPC
B62D57/032
Inventors
张小俊; 丁国帅