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

Prosthetic hand mechanism with five degrees of freedom

A degree of freedom and prosthetic hand technology, applied in the direction of manipulators, program-controlled manipulators, artificial arms, etc., can solve the problems of poor finger flexibility, difficult to guarantee the reliability of transmission, complex structure, etc., to achieve improved finger flexibility, simple structure, and transmission The effect of simple structure

Inactive Publication Date: 2011-12-21
HARBIN INST OF TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a five-degree-of-freedom prosthetic hand mechanism to solve the problems of complex structure, difficult transmission reliability and poor finger flexibility existing in the underactuated dexterous hand device of bionic robots

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
  • Prosthetic hand mechanism with five degrees of freedom
  • Prosthetic hand mechanism with five degrees of freedom
  • Prosthetic hand mechanism with five degrees of freedom

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0015] Specific implementation mode one: combine Figure 1-Figure 17 Describe this embodiment, the prosthetic hand mechanism of this embodiment is made up of palm 6, five drivers, five speed reducers, five transmission mechanisms, five potentiometers, five bases, palm circuit board 7 and wrist 8; The five drivers are respectively thumb driver 1-1, index finger driver 2-1, middle finger driver 3-1, ring finger driver 4-1 and little finger driver 5-1, and the five reducers are respectively thumb reducer 1-2, Index finger reducer 2-2, middle finger reducer 3-2, ring finger reducer 4-2 and little finger reducer 5-2, the five transmission mechanisms are respectively thumb transmission mechanism 1-5, index finger transmission mechanism 2-5, Middle finger transmission mechanism 3-5, ring finger transmission mechanism 4-5 and little finger transmission mechanism 5-5, the five potentiometers are thumb potentiometer 1-3, index finger potentiometer 2-3, middle finger potentiometer 3-3, ...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination Figure 14-Figure 17 Describe this embodiment, the thumb speed reducer 1-2 of this embodiment is a harmonic reducer (Harmonic reducer), the thumb driver 1-1 is a DC motor, and the thumb transmission mechanism 1-5 is composed of a thumb small bevel gear 1-5-1 , connecting shaft 1-5-2, thumb big bevel gear 1-5-3, first pin 1-5-4, thumb connecting sleeve 1-5-5, thumb big bevel gear shaft 1-5-6 and thumb steel wire The wheel is composed of 1-5-7; the rigid wheel of the thumb reducer 1-2 is connected with the thumb base 1-4, and the flexible wheel of the thumb reducer 1-2 and the thumb bevel gear 1-5-1 are connected by a connecting shaft 1-5-2 transmission connection, the thumb small bevel gear 1-5-1 meshes with the thumb bevel gear 1-5-3, and the thumb connecting sleeve 1-5 is housed in the inner hole of the thumb bevel gear 1-5-3 -5, the thumb connection sleeve 1-5-5 is set on the thumb bevel gear shaft 1-5-6, the thumb bevel ...

specific Embodiment approach 3

[0017] Specific implementation mode three: combination figure 1 , Figure 6 and Figure 7 Describe this embodiment, the index finger speed reducer 2-2 of this embodiment is a planetary gear reducer (Planetary gearhead), the index finger driver 2-1 is a DC motor, the index finger transmission mechanism 2-5 is formed by the index finger small bevel gear 2-5-1 , the index finger bevel gear 2-5-2, the second pin 2-5-3, the index finger connecting sleeve 2-5-4, the index finger bevel gear shaft 2-5-5 and the index finger wire wheel 2-5-6; The index finger base 2-4 is composed of the index finger support seat 2-4-1 and the index finger fixing plate 2-4-2, and the index finger driver 2-1 and the index finger reducer 2-2 are connected with the index finger fixing plate 2-4. -2 connection, the index finger fixed plate 2-4-2 is connected with the index finger support seat 2-4-1 (connected by screws in the present embodiment), the output end of the index finger reducer 2-2 is connected...

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

A five-degree-of-freedom artificial hand mechanism relates to an artificial hand mechanism. In order to solve the problems of complex structure, reliability and poor finger dexterity of the underactuated dexterous hand device of the existing bionic robot. Five drivers, five reducers and the palm circuit board are all integrated in the cavity of the palm, the thumb driver and the thumb reducer are arranged along the width direction of the palm, the other four drivers except the thumb driver and the five The other four reducers in the reducer except the thumb reducer are all set along the length direction of the palm, and the wrist and the palm are connected by relative rotation; each driver is connected with the corresponding reducer, and the reducer is connected with the corresponding transmission mechanism. The rotating part of each potentiometer is connected with the corresponding transmission mechanism, and the transmission mechanism is supported on the corresponding base. The invention has five degrees of freedom, improves the flexibility of the artificial hand, realizes the relative movement of each finger, and can realize self-adaptive grasping of objects of different shapes and sizes.

Description

technical field [0001] The invention relates to an artificial hand mechanism. Background technique [0002] The human hand is the most complex and delicate tool for human beings to survive and work. The absence of hands not only makes people lose their important functions but also suffers psychological damage. Due to reasons such as traffic accidents, work-related injuries and diseases, the number of people with disabilities has increased significantly, which is a serious social problem worldwide. [0003] The ideal prosthetic hand should be the same as the real hand in shape and function. It can not only replace the sensory and motor functions of the human hand, but also have the same shape as the human hand. But current technology is far from meeting this ideal requirement. The human body upper limb mechanism model has 27 degrees of freedom, of which the finger part has 20 degrees of freedom, but the current scientific level cannot achieve an electronic prosthetic hand w...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B25J9/08A61F2/54
Inventor 刘伊威高一夫
Owner HARBIN INST OF TECH
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