CN109737175A - A kind of piston component for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle - Google Patents
A kind of piston component for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle Download PDFInfo
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- CN109737175A CN109737175A CN201811638055.XA CN201811638055A CN109737175A CN 109737175 A CN109737175 A CN 109737175A CN 201811638055 A CN201811638055 A CN 201811638055A CN 109737175 A CN109737175 A CN 109737175A
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- motor car
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- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The present invention relates to the piston components for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, it include: piston and core valve, the piston is equipped with the channel that oil liquid passes through piston circulation, core valve is provided in the channel, the limit guide post connecting with the core valve integral type is provided on the core valve, the end of the limit guide post and shop bolt are cooperatively connected, and the shop bolt and piston riveting are fixed.The present invention changes the piston component overall structure of damper less, increase less production cost, the problem of leakage in former piston component can be efficiently solved, increase the stability when work of piston valve system, requirement of the anti-hunting damper holder to piston component is met, ensure that the stability of anti-hunting damper holder damping capacity.
Description
Technical field
The present invention relates to high speed motor car Hydraulic Elements fields, more particularly to one kind to be used for high speed motor car damper piston group
Part.
Background technique
Oil-pressure damper is the key components and parts on rail vehicle, especially anti-hunting damper holder, has high technology
Content, the quality of working performance are directly related to riding comfort and the safety of rail vehicle.Anti- snake is installed ON TRAINS
Row oil-pressure damper, it has also become a kind of trend, and railway parent company provides to install on train of the speed higher than 160Km/h
Anti-hunting damper holder.In recent years, with the rapid development of China's high-speed rail technology, the speed of rail vehicle is also being continuously improved, right
The technical requirements of anti-hunting damper holder are also higher and higher, and each scientific research institution also constantly deepens the research of anti-hunting damper holder.
In previous research, it is uncontrolled to influence anti-snake damping capacity, one of main cause be exactly in leakage,
Observe previous anti-hunting damper holder piston structure, it is found that only there are two piston ring packings, and piston ring is all provided with skewed slot.This is close
Seal structure is able to satisfy the use of common damper (one hangs down, two horizontal and two hang down), but the structure in anti-hunting damper holder in use,
Because the damped coefficient of anti-hunting damper holder is larger, the pressure generated inside pressure cylinder is higher.Therefore, how to reduce or prevent
The problem of interior leakage that anti-hunting damper holder occurs is always damper manufacturer urgent need to resolve.
In addition, because anti-hunting damper holder damped coefficient is larger, it is larger to the impact of valve system, therefore to the stability of valve system
It is required that higher.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle
Piston component, comprising: piston and core valve, the piston are equipped with the channel that oil liquid passes through piston circulation, set in the channel
Be equipped with core valve, be provided with the limit guide post connecting with the core valve integral type on the core valve, the end of the limit guide post with
Shop bolt is cooperatively connected, and the shop bolt and piston riveting are fixed.
Further, multiple groups piston ring is provided between the piston and damper inner casing, between the adjacent piston ring
It is additionally provided with Glais ring.
Further, the piston ring and the Glais ring are each attached in the groove on the outside of the piston.
Further, core valve spring is provided on the core valve.
Further, adjusting screw is additionally provided at the core valve spring.
A kind of advantage of the invention is: the present invention changes less, increase to the piston component overall structure of damper
Less production cost is the problem of capable of efficiently solving leakage in former piston component, steady when increasing the work of piston valve system
It is qualitative, requirement of the anti-hunting damper holder to piston component is met, ensure that the stability of anti-hunting damper holder damping capacity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for improving the installation of secondary piston component.
Fig. 2 is core valve arrangement schematic diagram before improving.
Fig. 3 is piston component mounting structure schematic diagram after the present invention improves.
Fig. 4 is core valve arrangement schematic diagram after the present invention improves.
Fig. 5 is the structural schematic diagram of the newly-increased shop bolt of the present invention.
1- foot valve seat, 2- compensator valve plate, the tower-shaped spring of 3-, 4- core valve seat, the bottom 5- core valve, 6- adjusting screw, 7- gasket, 8-
Bottom valve spring, 9- circlip, 10- spring backstop.
Specific embodiment
Below with reference to attached drawing, to a kind of piston for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle of the invention
Component is further described in detail.
Core valve knot before the structural schematic diagram for improving the installation of secondary piston component as shown in Figure 1 and improvement as shown in Figure 2
Structure schematic diagram, exactly because leakage problem in damper existing in the prior art, and be only provided only with two piston rings 2 and use
To realize the sealing between damper inner casing and piston 1.For anti-hunting damper holder because its damped coefficient compared with
Greatly, the pressure generated inside pressure cylinder is higher, larger to the impact of valve system, therefore leakproofness to piston component and to valve
The stability requirement of system is higher.Therefore, in the present invention in the case where original piston component function, by changing optimization piston
The structure of component, reduction even prevent to influence resistance of shock absorber performance due to the internal leakage between piston component and pressure cylinder
Variation；And by changing core valve arrangement, increase core valve shop bolt 7, the stability of Lai Tigao valve system.
Piston component mounting structure schematic diagram after the present invention as shown in Figure 3 improves, comprising: piston 1 and core valve 5, institute
It states piston 1 and passes through the channel that piston 1 circulates equipped with oil liquid, be provided with core valve 5 in the channel, be provided on the core valve 5
The limit guide post connecting with 5 integral type of core valve, the end of the limit guide post and shop bolt 7 are cooperatively connected, described fixed
Position pin 7 and the piston 1 riveting are fixed.
According to an embodiment of the invention, piston component of the invention is applied inside anti-snake oil-pressure damper, with piston
The cooperating piston component upper fluting on the outside of piston 1 increases Glais ring 3 together for bar and pressure cylinder.
Core valve arrangement schematic diagram after the present invention as shown in Figure 4 improves, changes 5 structure of core valve, on the basis of original core valve 5
On increase limit guide post, and secure on piston 1 shop bolt 7 with guide post cooperation.The present invention as shown in Figure 5 is newly-increased
The structural schematic diagram of shop bolt.
According to an embodiment of the invention, multiple groups piston ring 2 is provided between the piston 1 and damper inner casing, adjacent institute
It states and is additionally provided with Glais ring 3 between piston ring 2.The piston ring 2 is each attached to 1 outside of piston with the Glais ring 3
In groove.
According to an embodiment of the invention, being provided with core valve spring 6 on the core valve 5.It is also set at the core valve spring 6
It is equipped with adjusting screw 4.The adjusting screw 4 is used to adjust the pressure size of core valve spring 6 and then changes service valve herein
Size, to change the fluid flow size for passing through 5 valve of core valve.For the knot between service valve and the core valve spring 6
Structure setting belongs to the prior art, then this is not repeated them here.Liquid flow direction by inventive piston component be it is unidirectional, by institute
The liquid flow direction of 1 two sides of piston is stated on the contrary, needing in turn when the core valve 5 is arranged with the shop bolt 7 according to liquid
Make correspondingly position change in body flow direction.
According to an embodiment of the invention, when carrying out the design of anti-snake piston component, it is contemplated that anti-hunting damper holder name
Adopted speed is lower, and load is larger, i.e., damped coefficient is larger, and original piston structure can not meet anti-hunting damper holder damping capacity
It is required that.For the damping capacity requirement for meeting anti-hunting damper holder, it is necessary to the internal leakage between piston component and pressure cylinder is reduced, because
This we while retaining original piston seal guide frame, increase Glais ring 3 on piston component.
According to an embodiment of the invention, damping force is larger, and oil liquid flow is larger, hydraulic oil because of anti-hunting damper holder
It is larger to the impact of valve system, in order to guarantee the stability when work of piston valve system.We change original 5 structure of core valve, in core
The guide post of limit is increased on valve 5, while increasing the shop bolt 7 of core valve 5 on the piston body, is guaranteed steady when valve system works
It is qualitative.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Claims (5)
1. a kind of piston component for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, comprising: piston and core valve, it is described
Piston is equipped with the channel that oil liquid passes through piston circulation, is provided with core valve in the channel, which is characterized in that set on the core valve
It is equipped with the limit guide post connecting with the core valve integral type, the end of the limit guide post and shop bolt are cooperatively connected, described
Shop bolt and piston riveting are fixed.
2. the piston component according to claim 1 for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, feature
It is, multiple groups piston ring is provided between the piston and damper inner casing, is additionally provided with Ge Lai between the adjacent piston ring
Circle.
3. the piston component according to claim 2 for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, feature
It is, the piston ring and the Glais ring are each attached in the groove on the outside of the piston.
4. the piston component according to claim 1 for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, feature
It is, is provided with core valve spring on the core valve.
5. the piston component according to claim 4 for the anti-snake oil-pressure damper of high speed motor car Two-way Cycle, feature
It is, is additionally provided with adjusting screw at the core valve spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638055.XA CN109737175B (en) | 2018-12-29 | 2018-12-29 | Piston assembly for double-circulation anti-meandering oil pressure shock absorber of high-speed motor train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638055.XA CN109737175B (en) | 2018-12-29 | 2018-12-29 | Piston assembly for double-circulation anti-meandering oil pressure shock absorber of high-speed motor train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737175A true CN109737175A (en) | 2019-05-10 |
| CN109737175B CN109737175B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811638055.XA Active CN109737175B (en) | 2018-12-29 | 2018-12-29 | Piston assembly for double-circulation anti-meandering oil pressure shock absorber of high-speed motor train |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690195A (en) * | 1996-07-29 | 1997-11-25 | General Motors Corporation | Alternating state pressure regulation valved damper |
| CN103851121A (en) * | 2012-12-07 | 2014-06-11 | 常州朗锐凯迩必减振技术有限公司 | Snaking prevention shock absorber |
| CN206338359U (en) * | 2016-12-29 | 2017-07-18 | 浙江路得坦摩汽车部件股份有限公司 | Valve core structure for shock absorber regulating valve |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| 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 |
| CN108036010A (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 piston valve system system |
| CN108679146A (en) * | 2018-07-02 | 2018-10-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of EMU oil-pressure damper |
| CN209800603U (en) * | 2018-12-29 | 2019-12-17 | 珠海市业成轨道交通设备科技有限公司 | Piston assembly for dual-cycle anti-snaking oil pressure shock absorber of high-speed motor car |
-
2018
- 2018-12-29 CN CN201811638055.XA patent/CN109737175B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690195A (en) * | 1996-07-29 | 1997-11-25 | General Motors Corporation | Alternating state pressure regulation valved damper |
| CN103851121A (en) * | 2012-12-07 | 2014-06-11 | 常州朗锐凯迩必减振技术有限公司 | Snaking prevention shock absorber |
| CN206338359U (en) * | 2016-12-29 | 2017-07-18 | 浙江路得坦摩汽车部件股份有限公司 | Valve core structure for shock absorber regulating valve |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| 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 |
| CN108036010A (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 piston valve system system |
| CN108679146A (en) * | 2018-07-02 | 2018-10-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of EMU oil-pressure damper |
| CN209800603U (en) * | 2018-12-29 | 2019-12-17 | 珠海市业成轨道交通设备科技有限公司 | Piston assembly for dual-cycle anti-snaking oil pressure shock absorber of high-speed motor car |
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| CN109737175B (en) | 2024-03-29 |
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