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Inflated elongation type pneumatic flexible actuator

A technology of flexible driver and driving body, which is applied in the direction of passive exercise equipment, physical therapy, manipulator, etc. It can solve the problems of not considering the guiding device and the unsatisfactory linear motion repeatability, etc., and achieve simplified system structure design and good affinity , the effect of good flexibility

Active Publication Date: 2010-10-20
TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the main purpose of this drive structure is to realize the drive of bending motion, the guide device for linear motion is not considered, and the repeatability of linear motion is not ideal.

Method used

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  • Inflated elongation type pneumatic flexible actuator
  • Inflated elongation type pneumatic flexible actuator
  • Inflated elongation type pneumatic flexible actuator

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Effect test

Embodiment

[0015] combine figure 1 , figure 2 , image 3 and Figure 4 , the inflatable elongated pneumatic flexible driver of the present invention includes a driving body 1, a guide rod 2, an elastic body 3, a first end cover 4A and a second end cover 4B. The elastic rubber hose 1a with a flat initial cross-section is closed at one end and connected with a joint at the other end so as to be connected with the pneumatic control circuit. The outer peripheral surface of the elastic rubber hose 1a is wrapped with a reinforced mesh 1b made of a layer of high-strength soft polyester fiber material cross-woven, and the two mutually perpendicular weaving directions of the reinforced mesh fibers are respectively in line with the elastic The axial and radial directions of the rubber hose 1a are parallel, and one end of the reinforced mesh sleeve 1b is fixedly connected with the closed end of the elastic rubber hose 1a, and the axial length of the reinforced mesh sleeve 1b is slightly greater...

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Abstract

The invention discloses an inflated elongation type pneumatic flexible actuator. A reinforced composite pipe comprises an elastic rubber hose and a reinforced net sleeve, wherein the initial section shape of the elastic rubber hose is flat, the reinforced net sleeve is packaged on the outer circumference of the elastic rubber hose, and an axis direction formed after the reinforced composite pipe is subjected to spiral winding is parallel to a short radius direction of the flat initial section of the reinforced composite pipe; a main driving body is sleeved on a guide rod, elastic bodies are uniformly bonded and installed on the circumference of the hole walls of the inner holes formed on the main driving body by the spiral winding of the reinforced composite pipe, and the installation direction of the elastic bodies is parallel to the axis direction of the main driving body; one end of the main driving body is fixedly connected with a first end cover, and the first end cover is bonded and fixedly connected with the guide rod; and the other end of the main driving body is fixedly connected with a second end cover, the inner hole of the second end cover and the guide rod are in clearance fit, and the second end cover can slide on the guide rod. A linear actuator with good flexibility of the invention is particularly suitable for the application fields, such as medical rehabilitation and the like and has good affinity with human bodies.

Description

technical field [0001] The invention belongs to a pneumatic flexible driver, in particular to an inflatable stretchable pneumatic flexible driver. Background technique [0002] Pneumatic flexible actuator (also known as pneumatic muscle) is a new type of driving device developed in recent years. It has the advantages of good flexibility, high safety, high power / weight ratio, and control characteristics similar to biological muscles, so it is especially suitable for some Applications that require high safety and compliance of the drive, such as medical rehabilitation technology applications, etc. The pneumatic flexible actuator that has been industrialized at present is the Mckibben type pneumatic muscle invented by American J.L.Mckibben. This pneumatic flexible actuator is composed of an internal rubber tube and an external braided mesh. Contraction, which converts gas pressure into an axial contraction driving force. At present, this kind of pneumatic flexible driver is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J13/00A61H1/02
Inventor 李小宁滕燕杨罡孙中圣路建萍
Owner TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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