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Dustproof and antifouling oil cylinder

An anti-fouling and oil-cylinder technology, which is applied in the directions of engine sealing, drilling equipment, drilling equipment and methods, etc., can solve the problems of inability to grasp the life of dust-proof sealing, limited dust-proof and anti-fouling ability, etc., so as to improve the sealing effect and the overall The effect of reduced structure

Pending Publication Date: 2020-04-10
HUNAN WUXIN TUNNEL INTELLIGENT EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above schemes all achieve dustproof and antifouling by changing the structure of the sealed structural parts. The dustproof and antifouling capabilities are limited, and the utility and dustproof performance testing of the dustproof performance in actual use are not involved. The specific life of the dustproof seal cannot be determined. master

Method used

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  • Dustproof and antifouling oil cylinder
  • Dustproof and antifouling oil cylinder
  • Dustproof and antifouling oil cylinder

Examples

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Embodiment

[0039] see Figure 1-Figure 3 , a dust-proof and anti-fouling oil cylinder, including a cylinder 1, a piston 9, a piston rod 3, a sealing connector 4 and a dust cover 2, the details are as follows:

[0040] One end of the piston rod 3 is connected with a piston 9 arranged in the cylinder 1 .

[0041] The sealing connector 4 includes a pressure detection component 4.3, a guide sleeve 4.1 and an anti-fouling ring 4.2 both sleeved on the piston rod 3; the guide sleeve 4.1 is located between the inner wall of the cylinder 1 and the piston rod 3 Between; the antifouling ring 4.2 is detachably connected to the guide sleeve 4.1 through threads.

[0042] Preferably, the antifouling ring 4.2 includes a body 4.21, a first installation groove 4.22, a second installation groove 4.23, a lubricating oil receiving chamber 4.24, a lubricating oil injection port 4.25 and an exhaust overflow port 4.26, see Figure 4, the first installation groove 4.22 and the second installation groove 4.23 a...

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Abstract

The invention provides a dustproof and antifouling oil cylinder. The dustproof and antifouling oil cylinder comprises a sealing connecting piece, wherein the sealing connecting piece comprises a guidesleeve and an antifouling ring; the antifouling ring comprises a body, a first mounting groove, a lubricating oil accommodating cavity, a lubricating oil injection port and an exhaust overflow port;a dustproof piece is arranged in the first mounting groove; the lubricating oil accommodating cavity is formed between the first mounting groove and the guide sleeve; and an elastic extension piece and a sealing piece are arranged in the lubricating oil accommodating cavity. The oil cylinder has the effects that the overall structure is simple; the dustproof piece is arranged in the first mountinggroove, and a pressure spring and the sealing piece are arranged in the lubricating oil accommodating cavity, thus, it is ensured that back pressure is formed in the lubricating oil accommodating cavity, and the pressure in the lubricating oil accommodating cavity can be preferably stabilized; and as the pressure difference exists, external impurities are difficult to enter the lubricating oil accommodating cavity, and the sealing effect of the oil cylinder is improved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery construction, in particular to a dust-proof and anti-pollution oil cylinder. Background technique [0002] At present, hydraulic cylinders are widely used in engineering machinery vehicles, such as rock drilling vehicles, wet spraying machines, etc. [0003] The hydraulic cylinder is basically composed of a cylinder head and a cylinder barrel, a piston and a piston rod, and a sealing device. Under harsh working conditions, it will cause problems such as cylinder seal damage, cylinder leakage and even hydraulic system pollution. [0004] In the prior art, the dust-proof and anti-fouling effect is improved by improving the dust-proof parts of the oil cylinder, as follows: [0005] For example, the invention patent with the application number 201621312342.8 discloses a new type of dust-proof device for hydraulic cylinders, specifically: a protective oil chamber, the protective oil cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F16J15/3204F16J15/3232F16J15/40F16J15/52E21B7/02
CPCE21B7/02F15B15/1461F16J15/3204F16J15/3232F16J15/406F16J15/52
Inventor 王祥军龚俊张琳伍锡文宋祖源
Owner HUNAN WUXIN TUNNEL INTELLIGENT EQUIP CO LTD
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