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Shock absorber, hydraulic system and operation mechanical equipment

A technology for hydraulic systems and shock absorbers, applied in mechanical equipment, shock absorbers, springs/shock absorbers, etc., can solve problems such as equipment failures and shortening the service life of low-voltage components

Pending Publication Date: 2020-10-09
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related art, the reversing valve is used in the hydraulic system. When the control valve changes direction, a large pressure shock will be generated. For example, on the oil return pipeline, the pressure shock generated by the reversing valve will directly act on the radiator, oil return filter element and other low-voltage components, which will shorten the service life of low-voltage components and cause equipment failure

Method used

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  • Shock absorber, hydraulic system and operation mechanical equipment
  • Shock absorber, hydraulic system and operation mechanical equipment
  • Shock absorber, hydraulic system and operation mechanical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as image 3 As shown, the present embodiment provides a shock absorber 100, including: a cylinder 110, a piston 122, an elastic member 126 and a flow regulating valve group 130, the cylinder 110 has a cavity 112; the piston 122 is located in the cavity 112 Inside, and the cavity 112 is divided into the first cavity 1122 and the second cavity 1124; the elastic member 126 is arranged in the first cavity 1122 and is connected with the piston 122 and the cylinder body 110; and the flow regulating valve group 130 ; Wherein, the first inner chamber 1122 conducts outward in one direction through the flow regulating valve group 130, and the flow regulating valve group 130 is used to limit the flow area of ​​the fluid medium entering the first inner chamber 1122, and the second inner chamber 1124 is used for Filled with working medium.

[0050] In this embodiment, the second inner cavity 1124 is used to fill the working medium, which may be gas or liquid, wherein the liqui...

Embodiment 2

[0054] Such as image 3 with Figure 4 As shown, this embodiment provides a shock absorber 100 . In addition to the technical features of the above-mentioned embodiments, this embodiment also includes the following technical features:

[0055] The flow regulating valve group 130 is arranged on the cylinder body 110, the cylinder body 110 includes the first inner cavity side wall 114, the flow regulating valve group 130 includes: a flow hole 132, a one-way valve 134 and a flow limiting structure 136, the flow hole 132 is set On the side wall 114 of the first inner chamber; the one-way valve 134 is arranged in the flow hole 132, and the inlet port 1342 of the one-way valve 134 is connected to the first inner chamber 1122; and the flow restricting structure 136 is arranged in the first inner chamber On the side wall 114 , the flow restricting structure 136 is used to limit the flow area of ​​the fluid medium entering the first inner cavity 1122 .

[0056] In this embodiment, t...

Embodiment 3

[0059] Such as Figure 4 As shown, this embodiment provides a shock absorber 100 . In addition to the technical features of the above-mentioned embodiments, this embodiment also includes the following technical features:

[0060] The flow restriction structure 136 includes: an adjustable throttle valve or a damping hole, the adjustable throttle valve is used to adjust the flow area of ​​the fluid medium entering the first inner cavity 1122; or a damping hole is used to limit the fluid medium entering the first inner cavity 1122 flow area.

[0061] In this embodiment, the flow rate of the fluid medium entering the first inner chamber 1122 can be adjusted through an adjustable throttle valve or a damping hole. Specifically, a damping hole may be provided to regulate the flow rate of the fluid medium entering the first inner cavity 1122 . The diameter of the damping hole is smaller than the diameter of the flow hole 132, and the damping hole and the flow hole 132 communicate w...

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PUM

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Abstract

The invention provides a shock absorber, a hydraulic system and operation mechanical equipment. The shock absorber comprises a cylinder body, a piston, an elastic piece and a flow adjusting valve group, wherein the cylinder body is provided with a chamber body; the piston is arranged in the chamber body and partitions the chamber body into a first inner cavity and a second inner cavity; the elastic piece is arranged in the first inner cavity and is connected with the cylinder body through the piston; through the flow adjusting valve group, the first inner cavity is led through outwards in onedirection; the flow adjusting valve group is used for limiting the flow area of a fluid medium entering into the first inner cavity; and the second inner cavity is used for being filled with a workingmedium. According to the shock absorber, the hydraulic system and the operation mechanical equipment, the working medium hydraulic oil can be enabled to enter into a hydraulic system slowly, new pressure impact cannot be caused to a hydraulic oil return pipeline, and oil return is more stable.

Description

technical field [0001] The present application relates to the technical field of hydraulic control systems, and in particular, to a shock absorber, a hydraulic system and operating machinery. Background technique [0002] In the related art, the reversing valve is used in the hydraulic system. When the control valve is reversing, a large pressure shock will be generated. For example, on the oil return pipeline, the pressure shock generated by the reversing valve will directly act on the radiator, oil return filter element and other low-voltage components, which will shorten the service life of low-voltage components and cause equipment failure. Contents of the invention [0003] Embodiments according to the present invention aim to solve or improve at least one of the above technical problems. [0004] A first object of embodiments according to the present invention is to provide a shock absorber. [0005] A second object of embodiments according to the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/24F15B1/04F15B1/02F16F13/00F16F3/07
CPCF15B1/021F15B1/04F15B1/24F15B2201/205F15B2201/21F15B2201/31F15B2201/411F15B2201/4155F16F13/007
Inventor 朱雄文
Owner SANY AUTOMOBILE MFG CO LTD