CN206668649U - A kind of combined hydraulic dampening element - Google Patents
A kind of combined hydraulic dampening element Download PDFInfo
- Publication number
- CN206668649U CN206668649U CN201720326733.3U CN201720326733U CN206668649U CN 206668649 U CN206668649 U CN 206668649U CN 201720326733 U CN201720326733 U CN 201720326733U CN 206668649 U CN206668649 U CN 206668649U
- Authority
- CN
- China
- Prior art keywords
- valve
- precompression
- check valve
- damping hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 claims abstract description 20
- 230000010355 oscillation Effects 0.000 abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000020169 heat generation Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of combined hydraulic dampening element, including valve pocket and the precompression valve and check valve that are arranged in valve pocket, the precompression valve is oppositely arranged with check valve, the valve pocket of check valve is connected by the adjustable damping hole in side wall with the valve pocket of precompression valve, the first oil inlet of precompression valve connects with the valve pocket of check valve simultaneously, second oil inlet of check valve is connected with the valve pocket of precompression valve, and fixed damping hole is provided with the side wall of precompression valve.The utility model is by effectively controlling the pressure oscillation and pressure oscillation of oil circuit by adjustable damping hole, if oscillation pressure is higher, unnecessary fluid can bypass adjustable damping hole by flowing into precompression valve valve pocket, prevent system congestion, reduce system heat generation.
Description
Technical field
A kind of combined hydraulic dampening element is the utility model is related to, belongs to technical field of hydraulic.
Background technology
In the LS control loops of hydraulic system, oil circuit often produces pressure oscillation, causes system oscillation and heating.Mesh
The preceding measure for solving oil circuit pressure vibration is usually to utilize damping hole, but the effect of damping hole is relatively simple, and damping capacity has
Limit, the stability of uncontrollable loop works.
Utility model content
The purpose of this utility model is, there is provided a kind of simple in construction, working stability, avoids oil circuit from producing pressure oscillation
Combined hydraulic dampening element, with overcome the deficiencies in the prior art.
The technical solution of the utility model：A kind of combined hydraulic dampening element, including valve pocket and be arranged in valve pocket
Precompression valve and check valve, the precompression valve is oppositely arranged with check valve, and the valve pocket of check valve passes through the adjustable damping in side wall
Hole connects with the valve pocket of precompression valve, while the first oil inlet of precompression valve connects with the valve pocket of check valve, and the second of check valve enters
Hydraulic fluid port is connected with the valve pocket of precompression valve, and fixed damping hole is provided with the side wall of precompression valve.
Further, the first pre-compressed spring is provided with the precompression valve, the second pre-compressed spring is provided with check valve, and
The elastic force of first pre-compressed spring is more than the elastic force of the second pre-compressed spring.
Due to using above-mentioned technical proposal, the utility model has the advantage of：The utility model has by adjustable damping hole
The pressure oscillation and pressure oscillation of effect control oil circuit, if oscillation pressure is higher, unnecessary fluid can bypass adjustable damping hole
By flowing into precompression valve valve pocket, system congestion is prevented, reduces system heat generation.Therefore, the utility model be not only simple in structure, cloth
Put compact, and with making control valve element be rapidly achieved pressure balance, reduce system oscillation and heating, improve control loop work
The effect such as stability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Structural representation when Fig. 2 is precompression valve oil-feed；
Structural representation when Fig. 3 is check valve oil-feed.
Description of reference numerals：1- fixes damping hole, 2- precompression valves, 3- adjustable dampings hole, 4- check valves, 5- valve pockets, 6- the
One oil inlet, the oil inlets of 7- second, the pre-compressed springs of 8- first, the pre-compressed springs of 9- second.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, it is right with reference to the accompanying drawings and examples
The utility model is described in further detail.
The structural representation of combined hydraulic dampening element of the present utility model is as shown in figure 1, including valve pocket 5 and setting
Precompression valve 2 and check valve 4 in valve pocket 5, the precompression valve 2 are oppositely arranged with check valve 4, and the valve pocket of check valve 4 passes through side
Adjustable damping hole 3 on wall connects with the valve pocket of precompression valve 2, while the valve pocket of the first oil inlet 6 and check valve 4 of precompression valve 2
Connection, the second oil inlet 7 of check valve 4 are connected with the valve pocket of precompression valve 2, and fixed damping is provided with the side wall of precompression valve 2
Hole 1.The first pre-compressed spring 8 is provided with the precompression valve 2, the second pre-compressed spring 9 is provided with check valve 4, and first is pre-
The elastic force of pressing spring 8 is more than the elastic force of the second pre-compressed spring 9.
Operation principle of the present utility model：In control oil circuit reaches the dynamic process of poised state, LS oil circuits can produce
Pressure oscillation and pressure oscillation.Fixed damping hole 1 limits the flow of LS interfaces control oil, and check valve 4 makes oil circuit quickly reach
To pressure balance；Referring to Fig. 2 and Fig. 3, in the case where the vibration of control pressure is less than the set pressure of precompression valve 2, precompression valve 2 is protected
Hold closed mode；During pressure oscillation, control the flowing of oil must be more if oscillation pressure is higher by adjustable damping hole 3
Remaining fluid can bypass adjustable damping hole 3 and pass through precompression valve 2, prevent system congestion, reduce system heat generation.In summary divide
Analysis, this combined hydraulic dampening element, which has, makes control valve element be rapidly achieved pressure balance, reduces system oscillation and heating, improves
The effects such as the stability of control loop work.
Claims (2)
1. a kind of combined hydraulic dampening element, including valve pocket (5) and the precompression valve (2) that is arranged in valve pocket (5) and unidirectional
Valve (4), it is characterised in that：The precompression valve (2) is oppositely arranged with check valve (4), and the valve pocket of check valve (4) passes through in side wall
Adjustable damping hole (3) connects with the valve pocket of precompression valve (2), while the first oil inlet (6) of precompression valve (2) and check valve (4)
Valve pocket is connected, and the second oil inlet (7) of check valve (4) is connected with the valve pocket of precompression valve (2), set in the side wall of precompression valve (2)
It is equipped with fixed damping hole (1).
2. combined hydraulic dampening element according to claim 1, it is characterised in that：It is provided with the precompression valve (2)
First pre-compressed spring (8), the second pre-compressed spring (9) is provided with check valve (4), and the elastic force of the first pre-compressed spring (8) is big
Elastic force in the second pre-compressed spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326733.3U CN206668649U (en) | 2017-03-30 | 2017-03-30 | A kind of combined hydraulic dampening element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326733.3U CN206668649U (en) | 2017-03-30 | 2017-03-30 | A kind of combined hydraulic dampening element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668649U true CN206668649U (en) | 2017-11-24 |
Family
ID=60366349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720326733.3U Expired - Fee Related CN206668649U (en) | 2017-03-30 | 2017-03-30 | A kind of combined hydraulic dampening element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668649U (en) |
-
2017
- 2017-03-30 CN CN201720326733.3U patent/CN206668649U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |