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A hydraulic shock absorber and pulse cleaning angle valve

A technology of hydraulic shock absorbers and hydraulic cylinders, used in shock absorbers, liquid shock absorbers, springs/shock absorbers, etc., can solve problems such as leakage, high action frequency, damage to seals, etc. Small vibration, the effect of reducing the impact

Active Publication Date: 2022-04-19
XIAN AEROSPACE YUANZHENG FLUID CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Some large cylinders or valves need to be damped to avoid loss when working. For example, the opening and closing speed of pulse cleaning angle valves is very fast, and the action frequency is high, so the vibration is obvious especially for large-pound angle valves. After running with load, it is unfavorable for the sealing material and valve seat of the angle valve, and it is easy to cause damage and seal leakage

Method used

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  • A hydraulic shock absorber and pulse cleaning angle valve
  • A hydraulic shock absorber and pulse cleaning angle valve
  • A hydraulic shock absorber and pulse cleaning angle valve

Examples

Experimental program
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Effect test

Embodiment

[0029] Such as Figure 1-2 As shown, the main structure of the hydraulic shock absorber of this embodiment includes a hydraulic cylinder 1, a main piston 2, a secondary piston 3 and a spring 4. The hydraulic cylinder and the main piston are the key components of the hydraulic shock absorber. The structure of the hydraulic cylinder and the main piston Based on the comprehensive consideration of the stroke (working channel) and the damping channel, at the last extremely small stroke, the cavity needs to be divided into two and basically isolated, and the oil in one of the cavities can only pass through the damping channel. Flow, so as to achieve the purpose of reducing speed, reducing shock and vibration, among which:

[0030] The hydraulic cylinder is provided with a first buffer cavity 5, a working cavity 6 and a second buffer cavity 7 which are sequentially connected; the axial ends of the hydraulic cylinder are respectively provided with a first through hole and a second thr...

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PUM

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Abstract

The invention discloses a hydraulic shock absorber and a pulse cleaning angle valve. The disclosed hydraulic shock absorber includes a hydraulic cylinder, a main piston, a secondary piston and a spring. The main piston reciprocates, and the hydraulic oil in the cavity flows back and forth through holes of different inner diameters in the side wall of the hydraulic cylinder, especially during the final stroke, through The large resistance of the small holes in the side wall of the hydraulic cylinder acts as a shock absorber. The disclosed pulse cleaning angle valve is a pulse cleaning angle valve equipped with the hydraulic shock absorber. The shock absorber of the present invention is designed based on the position and stroke of the small damping hole, satisfies the deceleration effect on the final minimum stroke, and is suitable for various large cylinders.

Description

technical field [0001] The invention designs a damping device, in particular to a hydraulic shock absorber and a pulse cleaning angle valve equipped with the hydraulic shock absorber. The hydraulic shock absorber is not only suitable for pulse cleaning angle valves, but also suitable for other large cylinders . Background technique [0002] Some large cylinders or valves need to be damped to avoid loss when working. For example, the opening and closing speed of pulse cleaning angle valves is very fast, and the action frequency is high, so the vibration is obvious especially for large-pound angle valves. After running with load, this is not good for the sealing material and valve seat of the angle valve, and it is easy to cause damage and seal leakage. Contents of the invention [0003] Aiming at the defects or deficiencies of the prior art, the invention provides a hydraulic shock absorber. [0004] For this reason, the hydraulic shock absorber provided by the present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/18F16F9/32F16F9/34F15B15/22F16K31/122
CPCF16F9/18F16F9/3214F16F9/3235F16F9/34F15B15/228F16K31/122
Inventor 杨军社李珍珍韩前卫刘尧王丽然乔彦军王长勇
Owner XIAN AEROSPACE YUANZHENG FLUID CONTROL