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Double-acting air-suspending friction-free air cylinder

A frictionless cylinder, air suspension technology, applied in the direction of fluid pressure actuation devices, etc., can solve the problems of unstable gas film formation

Active Publication Date: 2013-04-17
CHONGQING SHUANGSHI MOTORCYCLE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the lack of friction in traditional cylinders and solve the disadvantages of difficult gas supply and unstable gas film formation of air-floating frictionless cylinders, the present invention provides a double cylinder that adopts the high-pressure cavity of the cylinder itself to supply gas, and the gas film is not affected by high pressure. Air Suspension Frictionless Cylinder

Method used

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  • Double-acting air-suspending friction-free air cylinder
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] refer to Figure 1 to Figure 7 , a double-acting air suspension frictionless cylinder, comprising a cylinder 3, a piston 4, a piston rod 10, a front end cover 13 and a rear end cover 1, the piston rod 10 is connected to the piston 4, and the piston 4 is connected to the cylinder 3 There is a gap 9 between them, the front end cover 13 is installed on the front end of the cylinder 3, the rear end cover 1 is installed on the rear end of the cylinder 3, the rear end cover 1 has an air inlet and outlet 2, and the end cover 13 There are air inlet and outlet ports 12, and the piston 4 punches a first blind hole in the axial direction from one end face to form a first air inlet 6, and the first air inlet 6 is evenly distributed along the piston circumference, and then radially from the piston wall. The second blind hole is drilled in the direction to communicate with t...

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Abstract

A double-acting air-suspending friction-free air cylinder comprises a cylinder barrel, a piston, a piston rod, a front end cover and a rear end cover, first blind holes axially punched from one end face of the piston form first air inlet holes, second blind holes radially punched from the piston wall are communicated with the first air inlet holes so as to form first throttling holes, third blind holes axially punched from the other end face of the piston form second air inlet holes, the second air inlet holes and the first air inlet holes on the other end face of the piston form included angles but are not communicated, fourth blind holes radially punched from the piston wall are communicated with the second air inlet holes to form second throttling holes, a circumferential groove is arranged on the middle circumferential surface of the piston and is internally punched along the radial direction of the piston to be led to the circle center so that pressure relief grooves are formed, the pressure relief grooves are uniformly distributed along the circumference direction and are communicated with the first air inlet holes, the second air inlet holes, the first throttling holes and the second throttling holes, and one end, connected with the piston rod, of the piston is punched along the axial center so to be communicated with the pressure relief grooves. The air cylinder achieves air supply by a high-pressure chamber thereof, and an air film is unaffected by high pressure.

Description

technical field [0001] The invention relates to an air flotation cylinder. Background technique [0002] Ordinary cylinders usually use mechanical seals, and there is contact friction between the cylinder and the piston. [0003] Traditional low-friction cylinders rely on improving machining accuracy, using special low-friction materials or grease lubrication to reduce friction, but there are defects such as difficult processing, high cost, difficult maintenance and short life; or by improving the sealing form to reduce friction For example, the German FESTO company uses a special sealing technology to apply to the cylinder, using a one-way sealing ring, which has very small sliding resistance. Japan's SMC company adopts ball guide sleeve technology and gap sealing technology. This low-friction cylinder has made breakthroughs in uniform velocity, high and low pressure friction, high speed and high frequency. Complicated, difficult to process and manufacture, and expens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14
Inventor 单晓杭孙建辉周海清
Owner CHONGQING SHUANGSHI MOTORCYCLE MFG
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