CN109854665B - Bottom valve assembly for double-circulation anti-hunting oil pressure shock absorber of high-speed motor train - Google Patents
Bottom valve assembly for double-circulation anti-hunting oil pressure shock absorber of high-speed motor train Download PDFInfo
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- CN109854665B CN109854665B CN201811634660.XA CN201811634660A CN109854665B CN 109854665 B CN109854665 B CN 109854665B CN 201811634660 A CN201811634660 A CN 201811634660A CN 109854665 B CN109854665 B CN 109854665B
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 21
- 230000035939 shock Effects 0.000 title claims abstract description 21
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a base valve assembly for a double-circulation anti-meandering oil pressure shock absorber of a high-speed motor train, which comprises the following components: the valve comprises a bottom valve seat and a core valve seat, wherein the bottom valve seat is integrally connected with the core valve seat, a compensation valve plate and a tower-shaped spring are sleeved on the bottom valve seat, and a spring stop and a clamp spring are further arranged on the bottom valve seat and used for fixing the compensation valve plate and the tower-shaped spring on the bottom valve seat. The invention has less change to the whole structure of the base valve assembly of the shock absorber, increases less production cost, can effectively solve the problem of leakage in the original base valve assembly, optimizes the assembly process of the base valve assembly, and ensures the stability of the damping performance of the anti-snake shock absorber.
Description
Technical Field
The invention relates to the field of high-speed motor train hydraulic elements, in particular to a base valve assembly for a high-speed motor train shock absorber.
Background
The oil pressure shock absorber is a key part on the railway vehicle, particularly an anti-hunting shock absorber, has extremely high technical content, and the quality of the working performance of the oil pressure shock absorber is directly related to the riding comfort and the safety of the railway vehicle. The installation of anti-roll hydraulic dampers on trains has become a trend and the rail head office specifies that anti-roll dampers must be installed on trains having speeds above 160 Km/h. In recent years, along with the rapid development of high-speed rail technology in China, the speed of rail vehicles is continuously improved, the technical requirements for anti-snake vibration dampers are also higher and higher, and the research on anti-snake vibration dampers by various scientific research institutions is also continuously deepened.
In the prior art, the influence on the anti-hunting damping performance is uncontrolled, wherein one main reason is internal leakage, and when the structure of the bottom valve of the prior anti-hunting shock absorber is observed, two one-way valves are connected through threads and sealed through thread glue. The sealing structure can meet the use requirement of a common shock absorber (one-vertical, two-horizontal and two-vertical), but when the structure is used in the anti-snake shock absorber, the pressure generated in the pressure cylinder is higher because the damping coefficient of the anti-snake shock absorber is larger. Therefore, how to reduce or eliminate the internal leakage of the anti-hunting damper is always a problem to be solved by the damper manufacturers.
Disclosure of Invention
In order to solve the above problems, the present invention provides a base valve assembly for a dual circulation anti-hunting oil pressure shock absorber of a high speed motor train, comprising: the valve comprises a bottom valve seat and a core valve seat, wherein the bottom valve seat is integrally connected with the core valve seat, a compensation valve plate and a tower-shaped spring are sleeved on the bottom valve seat, and a spring stop and a clamp spring are further arranged on the bottom valve seat and used for fixing the compensation valve plate and the tower-shaped spring on the bottom valve seat.
Further, a groove in the circumferential direction is formed in the outer side of the bottom valve seat, and the clamp spring is clamped in the groove.
Preferably, the outer diameter of the bottom valve seat at the upper part of the groove is smaller than the outer diameter of the clamping spring.
Further, the spring stop is a column body with a T-shaped structure.
Further, the outer diameter of the upper part of the spring stop is larger than the outer diameter of the clamp spring.
Further, a bottom core valve is arranged in the bottom valve seat.
Further, a bottom valve spring is arranged in the bottom core valve, a gasket is arranged at the lower end of the bottom valve spring, and an adjusting screw is further arranged at the bottom valve spring.
One advantage of the present invention is that: the invention has less change to the whole structure of the base valve assembly of the shock absorber, increases less production cost, can effectively solve the problem of leakage in the original base valve assembly, optimizes the assembly process of the base valve assembly, and ensures the stability of the damping performance of the anti-snake shock absorber.
Drawings
FIG. 1 is a schematic illustration of an improved front base valve assembly installation.
FIG. 2 is a schematic diagram of an improved front base valve seat structure.
FIG. 3 is a schematic diagram of an improved front core valve seat structure.
FIG. 4 is a schematic view of an improved base valve assembly mounting structure of the present invention.
FIG. 5 is a schematic view of an improved base valve seat structure according to the present invention.
Fig. 6 is a schematic view of the structure of the improved spring stop of the present invention.
1-base valve seat, 2-compensation valve plate, 3-tower-shaped spring, 4-core valve seat, 5-base core valve, 6-adjusting screw, 7-gasket, 8-base valve spring, 9-jump ring, 10-spring stop.
Detailed Description
The invention solves the prior technical problems by changing the structures of the original valve system and optimizing the structure of the base valve assembly by changing under the condition of ensuring that the functions of the original base valve assembly are met. Thus, internal leakage caused by the base valve assembly is reduced or even eliminated, and the variation of the damping performance of the shock absorber is further caused.
A base valve assembly for a dual cycle anti-hunting hydraulic shock absorber for a high speed motor vehicle according to the present invention will be described in further detail with reference to the accompanying drawings.
The improved front base valve assembly shown in fig. 1 is assembled with the core valve seat 4, the improved front base valve seat shown in fig. 2 is assembled with the improved front core valve seat shown in fig. 3, and the problem of internal leakage can be solved greatly by integrally forming the base valve seat 1 and the core valve seat 4, because of the problem of internal leakage in the shock absorber in the prior art. In contrast to the schematic bottom valve assembly shown in fig. 1, the compensating valve plate 2 and the tower spring 3 cannot be assembled, and thus further improvement of the bottom valve seat 1 is required.
The improved base valve assembly of the present invention shown in fig. 4 is schematically assembled with the improved base valve seat of the present invention shown in fig. 5, and the base valve assembly of the present invention comprises: the valve comprises a bottom valve seat and a core valve seat, wherein the bottom valve seat 1 is integrally connected with the core valve seat 4, a compensation valve plate 2 and a tower-shaped spring 3 are sleeved on the bottom valve seat 1, and a spring stop 10 and a clamp spring 9 are further arranged on the bottom valve seat 1 and used for fixing the compensation valve plate 2 and the tower-shaped spring 3 on the bottom valve seat 1.
According to the embodiment of the invention, a groove in the circumferential direction is formed on the outer side of the bottom valve seat 1, and the clamp spring 9 is clamped in the groove. Preferably, the outer diameter of the bottom valve seat 1 at the upper part of the groove is smaller than the outer diameter of the clamping spring 9.
The spring stop 10 is a cylindrical body with a T-shaped structure, as shown in a schematic structural view of the improved spring stop of the invention in fig. 6. As shown in fig. 4, the upper outer diameter of the spring stop 10 is greater than the outer diameter of the snap spring 9.
As shown in fig. 4, a bottom core valve 5 is disposed in the bottom valve seat 1. The bottom core valve 5 is internally provided with a bottom valve spring 8, the lower end of the bottom valve spring is provided with a gasket 7, and the bottom valve spring 8 is also provided with an adjusting screw 6. The adjusting screw 6 is used for adjusting the pressure of the bottom valve spring 8 so as to change the size of the working valve, thereby changing the liquid flow through the valve. The structural arrangement between the working valve and the base valve spring belongs to the prior art, and is not described in detail. The invention is mainly characterized in that the original base valve seat and the core valve seat are integrally arranged, and the structure of the base valve assembly is optimized by changing under the condition that the functions of the original base valve assembly are ensured to be met. Thus, internal leakage caused by the base valve assembly is reduced or even eliminated, and the variation of the damping performance of the shock absorber is further caused.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Claims (1)
1. A base valve assembly for a dual cycle anti-hunting oil pressure shock absorber for a high speed motor train, comprising: the valve comprises a bottom valve seat and a core valve seat, and is characterized in that the bottom valve seat is integrally connected with the core valve seat, a compensation valve plate and a tower-shaped spring are sleeved on the bottom valve seat, and a spring stop and a clamp spring are further arranged on the bottom valve seat and used for fixing the compensation valve plate and the tower-shaped spring on the bottom valve seat;
the outer side of the bottom valve seat is provided with a groove in the circumferential direction, and the clamp spring is clamped in the groove; the outer diameter of the bottom valve seat at the upper part of the groove is smaller than the outer diameter of the clamp spring; the spring stop is a column body with a T-shaped structure; the outer diameter of the upper part of the spring stop is larger than the outer diameter of the clamp spring;
a bottom core valve is arranged in the bottom valve seat, a bottom valve spring is arranged in the bottom core valve, a gasket is arranged at the lower end of the bottom valve spring, and an adjusting screw is further arranged at the bottom valve spring; the adjusting screw is used for adjusting the pressure of the bottom valve spring so as to change the size of the working valve and change the liquid flow through the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634660.XA CN109854665B (en) | 2018-12-29 | 2018-12-29 | Bottom valve assembly for double-circulation anti-hunting oil pressure shock absorber of high-speed motor train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634660.XA CN109854665B (en) | 2018-12-29 | 2018-12-29 | Bottom valve assembly for double-circulation anti-hunting oil pressure shock absorber of high-speed motor train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854665A CN109854665A (en) | 2019-06-07 |
| CN109854665B true CN109854665B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634660.XA Active CN109854665B (en) | 2018-12-29 | 2018-12-29 | Bottom valve assembly for double-circulation anti-hunting oil pressure shock absorber of high-speed motor train |
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| CN (1) | CN109854665B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205064684U (en) * | 2015-09-18 | 2016-03-02 | 深圳市中车业成实业有限公司 | Hydraulic shock absorber's bottom valve unit for rail locomotive vehicle |
| CN205064682U (en) * | 2015-09-18 | 2016-03-02 | 深圳市中车业成实业有限公司 | Hydraulic shock absorber's bottom valve unit for rail locomotive vehicle |
| CN205978241U (en) * | 2016-08-30 | 2017-02-22 | 株洲中车时代装备技术有限公司 | A bottom valve structure for hydraulic shock absorber |
| CN108036012A (en) * | 2017-12-30 | 2018-05-15 | 深圳市中车业成实业有限公司 | A kind of high speed motor car oil-pressure damper tune valve module |
| CN108518443A (en) * | 2018-04-24 | 2018-09-11 | 湖南联诚轨道装备有限公司 | Anti- snake movement oil pressure shock absorber, track train and its design method of adaptive damping |
| CN210068837U (en) * | 2018-12-29 | 2020-02-14 | 珠海市业成轨道交通设备科技有限公司 | Bottom valve assembly for double-circulation anti-snaking oil pressure shock absorber of high-speed motor car |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070251777A1 (en) * | 2006-04-28 | 2007-11-01 | Po-Yi Li | Shock absorber for a vehicle |
| KR101254233B1 (en) * | 2011-05-31 | 2013-04-18 | 주식회사 만도 | Valve structure of a shock absorber |
-
2018
- 2018-12-29 CN CN201811634660.XA patent/CN109854665B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205064684U (en) * | 2015-09-18 | 2016-03-02 | 深圳市中车业成实业有限公司 | Hydraulic shock absorber's bottom valve unit for rail locomotive vehicle |
| CN205064682U (en) * | 2015-09-18 | 2016-03-02 | 深圳市中车业成实业有限公司 | Hydraulic shock absorber's bottom valve unit for rail locomotive vehicle |
| CN205978241U (en) * | 2016-08-30 | 2017-02-22 | 株洲中车时代装备技术有限公司 | A bottom valve structure for hydraulic shock absorber |
| CN108036012A (en) * | 2017-12-30 | 2018-05-15 | 深圳市中车业成实业有限公司 | A kind of high speed motor car oil-pressure damper tune valve module |
| CN108518443A (en) * | 2018-04-24 | 2018-09-11 | 湖南联诚轨道装备有限公司 | Anti- snake movement oil pressure shock absorber, track train and its design method of adaptive damping |
| CN210068837U (en) * | 2018-12-29 | 2020-02-14 | 珠海市业成轨道交通设备科技有限公司 | Bottom valve assembly for double-circulation anti-snaking oil pressure shock absorber of high-speed motor car |
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| CN109854665A (en) | 2019-06-07 |
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