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Hydraulic buffer

A hydraulic buffer and plunger sleeve technology, applied in the field of hydraulic buffers, can solve the problems of oil-gas mixing and buffer buffer instability, etc., to achieve the effect of weakening the degree of oil-gas mixing, reducing speed, and smooth buffering

Inactive Publication Date: 2012-12-12
SJEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the plunger is compressed and moves downward, the oil in the sleeve will be sprayed into the plunger through the throttling gap. Although the plunger is cushioned, it is easy to generate oil and gas mixing, resulting in instantaneous high pressure and impact. Cause buffer cushioning to be unstable

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] The structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] see Figure 1-5 As shown, a hydraulic buffer includes a base 14, a plunger sleeve 1 vertically arranged on the base 14, a throttle rod 3 vertically arranged on the base 14 and located in the plunger sleeve 1, a hollow Plunger 2, disc-shaped part 4, the hollow plunger 2 is sealed and inserted in the plunger sleeve 1, and can slide up and down along the length direction of the plunger sleeve 1, the bottom of the plunger 2 is provided with a The inner cavity 5 of the throttle hole is connected to the throttle hole, the top of the throttle rod 3 enters the plunger 2 through the throttle hole, and a throttle gap 11 is formed between the throttle rod 3 and the throttle hole, and the throttle rod 3 is located on the column. The top in the plug 2 is sealed with a disk-shaped member 4, the axis of the disk-shaped member 4 coincides with the axis of the ...

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PUM

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Abstract

The invention discloses a hydraulic buffer. When a plunger piston is compressed and moves downwards, oil liquid can be sprayed to the lower surface of a disk piece from a throttle gap, and a space is formed between the bottom of the plunger piston and the disk piece and forms negative pressure for throttle effect. On one hand, the oil liquid in an inner cavity of the plunger piston above the diskpiece can flow to the space through the throttle gap; on the other hand, after the transition of the space, the oil liquid sprayed from the throttle gap impacts the lower surface of the disk piece, and the oil liquid still has a certain speed at the moment. The oil liquid can flow into the inner cavity of the plunger piston above the disk piece, forms convection with the oil liquid which flows tothe space from the inner cavity of the plunger piston above the disk piece through the throttle gap and weakens an oil-gas mixture degree in order to more smoothly buffer the hydraulic buffer.

Description

technical field [0001] The invention relates to a hydraulic buffer. Background technique [0002] The existing hydraulic shock absorber includes a plunger sleeve, a hollow plunger, and a throttle rod fixedly arranged in the plunger sleeve. The plunger seal is inserted in the plunger sleeve and can be The bottom of the plunger is provided with an orifice connected with the inner cavity of the plunger, the top of the throttle rod passes through the orifice, and a throttle gap is formed between the throttle rod and the orifice. An oil inlet is opened on the plunger sleeve. When the hydraulic buffer is in use, the oil enters the sleeve through the oil inlet, and enters the plunger through the throttling gap. When the plunger is compressed and moves downward, the oil in the sleeve will be sprayed into the plunger through the throttling gap. Although the plunger is cushioned, it is easy to generate oil and gas mixing, resulting in instantaneous high pressure and impact. Resulti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/16
Inventor 朱卫华陈冶湘
Owner SJEC CORP