High-pressure multi-way valve based on laser micromachining technology

A multi-way valve and technology technology, applied in the field of hydraulic components, to achieve the effect of long service life, reduced leakage and small deformation

Active Publication Date: 2014-07-16
CHANGZHOU XIAOGUO INFORMATION SERVICES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-pressure multi-way valve, which overcomes the stress deformation of the valve core caused by the opening of the pressure equalizing groove on the valve core, which affects the matching accuracy of the valve core and the valve body hole.

Method used

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  • High-pressure multi-way valve based on laser micromachining technology
  • High-pressure multi-way valve based on laser micromachining technology
  • High-pressure multi-way valve based on laser micromachining technology

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Embodiment Construction

[0020] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0021] figure 1 It is a structure of high-pressure multi-way valve. It is a high-pressure multi-way valve based on laser micromachining technology. It has a valve body 1 and a valve core 2 inside the valve body 1. The reticular micro-groove 3 formed by laser processing and further polishing, the groove width of the micro-groove 3 is 0.1-0.3 mm, and the groove depth is 0.004-0.02 mm. Since the micro-groove is relatively small, figure 1 No such structure appears in .

[0022] Such as figure 2 , the structure of the first specific form of reticular micro-grooves is shown by expanding the surface of a section of the spool, a...

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Abstract

The invention relates to the technical field of hydraulic components, in particular to a high-pressure multi-way valve based on the laser micromachining technology. The multi-way valve is used for solving the problems that in the prior art, because pressure equalizing grooves formed in a valve element cause stress deformation of the valve element, the precision of matching between the valve element and a valve body hole is affected, errors of the coaxiality between the valve element and the valve body hole are enlarged, and consequently the valve element and the valve body hole are tightly clamped together. According to the scheme, the matching circumferential surface of a valve element of the multi-way valve and a valve body of the multi-way valve is provided with netted micro grooves machined through lasers, the groove width of each micro groove ranges from 0.1 mm to 0.3 mm, the groove depth of each micro groove ranges from 0.004 mm to 0.02 mm, the micro grooves include the circumferential grooves arranged in parallel and the axial circumferential grooves arrayed in parallel, the interval between every two adjacent circumferential grooves ranges from 1 mm to 3 mm, and the interval between every two adjacent axial grooves ranges from 1 mm to 3 mm.

Description

technical field [0001] The invention relates to the technical field of hydraulic components, in particular to a high-pressure multi-way valve based on laser micromachining technology. Background technique [0002] The multi-way valve is a multi-functional integrated valve with more than two reversing valves as the main body, which integrates the reversing valve, check valve, overload valve, oil replenishment valve and brake valve, and can perform multi-channel oil flow. Direction, switch control. It has the characteristics of compact structure, simplified pipeline and convenient operation. It is widely used in hydraulic systems such as engineering machinery, mining and metallurgical machinery, lifting and transportation machinery, and light industrial machinery. [0003] High-pressure multi-way valve refers to a multi-way valve with a working pressure greater than or equal to 28MPa. Its core technology includes design, casting of the valve body, and finishing technology of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K3/314
Inventor 王志平褚守云杨兴华孙斐
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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