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A dirt-resistant and anti-seize hydraulic slide valve

A hydraulic slide valve, anti-fouling technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motor components, etc., can solve the problem that the hydraulic slide valve has no strong anti-fouling and anti-seizing ability, no adsorption and fixation Particle action, adsorption and filtration of iron particles, etc., to achieve the effect of low cost, simple structure, and prevention of sticking

Active Publication Date: 2019-11-01
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. The high-pressure oil introduced into the "liquid sealing ring" also has pollution problems;
[0008] 2. The pressure equalizing tank has a certain ability to hold dirt, but it has no effect on the adsorption and fixation of iron particles in the gap or in the pressure equalizing tank;
[0009] 3. It is impossible for the external magnetic filter to absorb and filter out all the iron particles in the oil, and the traditional hydraulic slide valve itself does not have a strong anti-fouling and anti-seizing ability

Method used

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  • A dirt-resistant and anti-seize hydraulic slide valve
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  • A dirt-resistant and anti-seize hydraulic slide valve

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] Such as Figure 1~Figure 8 As shown, the present invention provides a pollution-resistant and anti-seize hydraulic slide valve, including a valve body 1, a valve hole 3, a valve core 2, an oil inlet 12, an oil outlet 11, a left undercut groove 4, and a right undercut groove 5 , sinking and cutting groove magnetic ring 6, pressure equalizing groove 9, left magnetic ring 7 of pressure equalizing groove, right magnetic ring 8 of pressure equalizing groove,...

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Abstract

The invention discloses a stain resistant anti-clamping hydraulic slide valve which aims to realize self stain retaining and stain holding so as to enable the hydraulic slide valve to have the stain resistant anti-clamping capacity and improve the working reliability of the hydraulic slide valve. The stain resistant anti-clamping hydraulic slide valve comprises a valve body (1), a valve hole (3),a valve element (2), an oil inlet (12) and an oil outlet (11), wherein the valve hole (3) is formed in the valve body (1); the valve element (2) is mounted in the valve hole (3); the oil inlet (12) communicates with a left under cut groove (4); the oil outlet (11) communicates with a right under cut groove (5); an under cut groove magnetic ring (6) is mounted at the position, close to the valve hole (3), of the right side of the right under cut groove (5); a pressure equalizing groove (9) is formed in the valve element (2); and a pressure equalizing groove left magnetic ring (7), a pressure equalizing groove right magnetic ring (8) and a pressure equalizing groove bottom magnetic ring (10) are mounted in the pressure equalizing groove (9).

Description

technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to a stain-resistant and anti-seize hydraulic slide valve. Background technique [0002] The application of hydraulic slide valve in hydraulic system is very common, and it is the most widely used structural form among various hydraulic valves. The hydraulic spool valve can be used as the main valve of the reversing valve, proportional valve and servo valve. Its main performance requirement is the reliability and stability of the reversing process. Generally, there is a cylindrical sliding pair between the valve core and the valve sleeve (or valve body). (spool valve pair), there is a certain gap between the sliding pairs, about a dozen microns, therefore, the spool valve pair is very important for the performance of the hydraulic spool valve. [0003] Solid particle pollutants are the most common and harmful pollutants in hydraulic systems. According to statistics, hydrau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02F15B21/041
CPCF15B13/021F15B21/041
Inventor 冀宏刘新强郑直闵为袁海利崔腾霞贾登娉
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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