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Air Cylinder

A cylinder and cylinder chamber technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc., can solve the problems of intrusion, adhesion of foreign objects, damage to closed parts, etc., and achieve the effect of preventing intrusion

Active Publication Date: 2012-05-30
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the devices described in the above-mentioned Patent Documents 1 and 2, the lubricant supplied to the rod via the solid lubricating member 15 and the impregnating member 41 easily passes over the dust seal 19 as a dust-proof wiper together with the forward stroke of the rod. , The rubber scraper 36 leaks, therefore, it becomes easy to attach foreign matter to the rod, or the foreign matter scraped off by the dust-proof wiper absorbs the lubricant and accumulates on the rod surface
Therefore, if it continues to be used as it is, there is a possibility that the foreign matter will enter the cylinder beyond the dust-proof wiper and damage the sealing member. Therefore, it is necessary to frequently remove the foreign matter from the rod.

Method used

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Examples

Experimental program
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Embodiment Construction

[0063] figure 1 It is a figure which shows 1st Embodiment of the air cylinder of this invention.

[0064] Such as figure 1As shown, the cylinder 1 is formed in a cylindrical shape with both ends open, and the cylinder 1 is provided with a cylinder block 3, a piston 4, a rod 5, a through hole 6, a rod end cover 7, and a cylinder head cover 8; A cylinder chamber 2 extending in the axial direction; the piston 4 reciprocates in the axial direction in the cylinder chamber 2 by supplying and discharging compressed air to the cylinder chamber 2; the base end of the rod 5 is fixed on the The piston 4 extends in the axial direction in the cylinder chamber 2; the rod end cover 7 closes one opening of the cylinder body 3 in an airtight manner on one end side of the cylinder chamber 2 in the axial direction, and Equipped with an airtight and reciprocating sliding free support for the above-mentioned rod 5, so that the above-mentioned rod 5 penetrates and leads out of the through-hole 6 ...

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PUM

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Abstract

An air cylinder that can prevent foreign substances from intruding inside in an environment where fine foreign substances such as dust are scattered. The air cylinder includes, in a through hole of a rod cover, an annular lubricator impregnated with a lubricant so as to supply the lubricant to the rod and a liquid-absorptive annular dust wiper not containing a lubricant and provided for preventing fine foreign substances such as powder stuck to the rod from intruding inside. The lubricator and the dust wiper are disposed air-tightly and slidably in contact with the rod, and the dust wiper is located closer to a leading end of the rod than the lubricator.

Description

technical field [0001] The present invention relates to an air cylinder, and in particular relates to an air cylinder suitable for use in an environment where fine foreign matter such as dust is scattered. Background technique [0002] Conventionally, air cylinders have generally been widely used as actuators of various automatic machines, for example, and include: a piston that fixes a rod and reciprocates in the cylinder chamber; A rod end cover; a sealing member for maintaining airtightness between the through hole and the rod in the through hole. [0003] Incidentally, it is conventionally known that, in the above-mentioned cylinder, a lubricating member for supplying lubricant to the rod and a dust-proof wiper for preventing intrusion of fine foreign matter such as dust adhering to the rod are installed in the above-mentioned through hole. [0004] As a device equipped with such a lubricating member and a dust-proof wiper, Patent Document 1 discloses a device in which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14
CPCF15B15/1461F15B21/04F15B15/14
Inventor 加藤明善新庄直树
Owner SMC CORP