Multistage location sylinder

A technology for positioning cylinders and cylinder barrels, which is applied in the direction of fluid pressure actuating devices, etc., and can solve the problems of undetected oil cylinders, inability to accurately determine the position, and inability of gas to reach the precise position, etc.

Inactive Publication Date: 2006-09-13
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two largest German companies that produce pneumatic products in the world, FESTO and Koganei, do not have multi-stage precise positioning telescopic cylinders; Japan's SMC has a three-position cylinder, but in fact it only has two-stage output. Positioning, the gas is compressible, so the central position cannot be accurately determined, and vibrations are likely to occur. In addition, during the return journey, some of the gas will leak into the cavity between the two cavities during the stretching process. A closed dead volume is created in the chamber, so the exact position cannot be reached during the gas return stroke, which is the biggest defect of this type of cylinder
No similar cylinders have been found so far

Method used

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  • Multistage location sylinder
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Embodiment Construction

[0007] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0008] see figure 1 , the present invention is made up of following main components: left and right end caps 1,10, cylinder barrel 2, piston 3, piston rod 4, left retaining ring 21, right retaining ring 5,16, sealing ring 6,7,8,9,15 , 17, 20, etc., left and right springs 14, 22, threaded rod 11, nuts 12, 19, gaskets 13, 18, etc.

[0009] When chamber C takes in air (oil) and other chambers exhaust (oil), the air (oil) cylinder is at position 1; when chambers A and C take in air (oil) and the rest exhaust (oil), air (oil) Cylinder extends to position 2; when chambers B and D take in air (oil) and the rest exhaust (oil), air (oil) cylinders extend to position 3; and so on, if you choose different chambers for air (oil) And exhaust (oil), then can push out different positions, obviously, it can satisfy the demand to multi-stage expansion and contractio...

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Abstract

A multi-stage located cylinder is composed of left and right end covers, cylinder body, piston with at least one retainer ring at its left and right ends, piston rod, sealing ring, left and right spring, fixing screw bolts and nuts. The working chamber divided into more working cavities is formed by left and right retainer rings, piston and left and right end covers. The piston rod is located by the position of retainer rings.

Description

(1) Technical field [0001] The invention relates to a positioning gas and oil cylinder, in particular to a multi-stage precise positioning gas and oil cylinder. (2) Background technology [0002] At present, in the hydraulic and pneumatic industries, as well as industrial automation production lines, there are many cases where it is required that the hydraulic and air cylinders can be accurately extended to 2, 3, 4... n levels. For example, in the food packaging industry, liquid and cylinder extensions are required to be 3 or 4 levels; in automated production lines, cylinders are sometimes required to extend 4, 5 or even more. The two largest German companies that produce pneumatic products in the world, FESTO and Koganei, do not have multi-stage precise positioning telescopic cylinders; Japan's SMC has a three-position cylinder, but in fact it only has two-stage output. Positioning, the gas is compressible, so the central position cannot be accurately determined, and vibra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/18
Inventor 胡国清吴碧金刘文艳
Owner XIAMEN UNIV
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