Air cylinder piston limiting device

A limit device, cylinder piston technology, applied in the direction of fluid pressure actuation device, etc., can solve the problems of complex, inconvenient processing, easy to cross-gas structure, etc., and achieve the effect of ingenious conception, prolonging service life and reliable operation

Active Publication Date: 2013-02-13
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cylinder-piston limiter for the defects of the existing cylinder-piston limiter, such as easy air leakage, complex structure, and inconvenient processing.

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] see figure 2 , image 3 , a displacement sensor 14 is installed on the cylinder body 13, the rear end cover 1 of the cylinder is composed of a solenoid valve seat, a solenoid valve 5 is installed on the solenoid valve seat, a magnetic ring 6 is installed on the piston 2, and the displacement sensor 14 passes through the induction magnetic ring 6 Motion to measure the axial reciprocating motion of piston 2. see Figure 2-Figure 5 , a cylinder piston limiting device, including a cylinder rear end cover 1, a piston 2, a piston rod 3 and a positioning rod 4, the piston 2 and the piston rod 3 are fixedly connected, and the piston and the piston rod can be manufactured in an integrated manner. The manufacture makes the structure simple and easy to assemble; the end face of the piston 2 is provided with a guide blind hole 7 leadin...

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PUM

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Abstract

The invention relates to an air cylinder piston limiting device. The limiting device comprises an air cylinder rear end cover (1), a piston (2), a piston rod (3) and a locating rod (4), wherein the piston (2) is fixedly connected with the piston rod (3); an end face of the piston (2) is provided with a guide blind hole (7) which is connected to the cross section of the piston rod (3), and the axes of the guide blind hole (7) and the piston rod (3) are parallel and are not coaxial; the length of the guide blind hole (7) is greater than the journey of the piston rod (3), one end of the locating rod (4) is inserted the guide blind hole (7), and the other end of the locating rod (4) is fixed on the air cylinder rear end cover (1); and the locating rod (4) is fitted with the guide blind hole (7) in a sliding manner, and the piston (2) does a straight reciprocating motion along the locating rod (4). The limiting device provided by the invention has the advantages that the design is novel, the structure is simple, a sealing device is not needed on the piston, the product performance of an air cylinder is guaranteed, meanwhile, the manufacturing cost and maintenance cost are reduced, and the limiting device has better use value.

Description

technical field [0001] The invention relates to a cylinder, and more specifically relates to a cylinder-piston limiting device, which is used to prevent the piston from rotating in the cylinder. Background technique [0002] In order to monitor the axial reciprocating movement of the cylinder piston, a displacement sensor is usually installed on the cylinder block, and the axial reciprocating movement of the piston is measured by the displacement sensor sensing the movement of the magnetic ring installed on the piston; The position device prevents the piston from rotating in the cylinder to ensure the test accuracy of the displacement sensor. Existing piston limiter mainly contains two kinds of ways: the first kind of way, see figure 1 , a positioning rod 4 is installed between the front end cover 11 of the cylinder and the rear end cover 1 of the cylinder, the rear end cover 1 of the cylinder is composed of a solenoid valve seat, and a solenoid valve 5 is installed on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/24
Inventor 王丹丹徐世杰叶新伟
Owner DONGFENG MOTOR CORP HUBEI
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