CN101029670A - One-way valve of oil-pressure vibration reducer for railway - Google Patents
One-way valve of oil-pressure vibration reducer for railway Download PDFInfo
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- CN101029670A CN101029670A CN 200710034464 CN200710034464A CN101029670A CN 101029670 A CN101029670 A CN 101029670A CN 200710034464 CN200710034464 CN 200710034464 CN 200710034464 A CN200710034464 A CN 200710034464A CN 101029670 A CN101029670 A CN 101029670A
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Abstract
A check valve for railway oil damper includes valve-body (also called the valve seat) and valve core which is a reed valve core structure composing by a self-deformation elastic valve plate and a shield. The elastic valve plate is between the shield and valve-body, which is deformation under the pressure of both sides. The open and close of a check valve are done through the deformation of the reed-valve-elastic. Elastic valve plate is a round spring steel sheet of which thickness is only 0.2~0.25mm, having good elasticity and flex fatigue resistance. The check valve opens and closes through the pressure difference on both sides of the elastic valve plate. As the pressure of valve-body (Valve-body is the Pistons or bottom valve) side is bigger than the shield side, the elastic valve plate leaves the valve-body and attaches to the shield then the check valve opens and let the oil flow; As the pressure of shield-side is bigger than the valve-bode side, the elastic valve plate leaves from shield to valve-body, the check valve is closed.
Description
Technical field
The invention belongs to a kind of component of railway part device, is a kind of one-way valve of oil-pressure vibration reducer for railway specifically, goes for the different kinds of railways locomotive vehicle oil hydraulic damper.
Background technique
The rail vehicles oil-pressure damper is the critical component of railway transportation equipments such as electric locomotive, internal combustion locomotive, subway train, and its effect is to guarantee motorcycle safety, improves Comfortability of Train.The rail vehicles oil-pressure damper is in order to guarantee damping property, and majority is equipped with one-way valves in vibration damper, and to guarantee the rail vehicles oil-pressure damper when bearing pressure, the hydraulic oil in the vibration damper can not leak.One-way valve mainly is applicable to the piston and the bottom valve of rail vehicles oil-pressure damper.Though but the one-way valve on present rail vehicles oil-pressure damper piston and the bottom valve has multiple, its structure is also different, but the one-way valve on existing rail vehicles oil-pressure damper piston and the bottom valve, majority is a valve plate formula structure, and the combination by a valve plate and pressure spring realizes the unlatching of valve or closes.Disclose the hydraulic damper that a kind of locomotive is used as Chinese patent literature (patent No. is ZL01274626.6, and name is called " anti-snakelike hydraulic damper "), this hydraulic damper also remains the one-way valve of taking valve plate and pressure spring combination structure.Practical application prove one-way valve most valves when vehicle operating of this class valve plate and pressure spring combination structure opening with closed course of action in produce different sound (a kind of impact noise), this different sound can produce certain vibration on the one hand, can produce some harmful effects to one-way valve itself even oil-pressure damper; This on the other hand different sound can make the passenger sound to feel very uncomfortable, sometimes even surpassed the scope that rolling stock allowed, therefore necessary this is improved.
Summary of the invention
The objective of the invention is to, at existing rail vehicles oil-pressure damper one-way valve most valves when the vehicle operating opening with closed course of action in produce the deficiency of different sound, a kind of one-way valve that does not produce different sound in it opens course of action with closure is proposed.
The objective of the invention is to be achieved through the following technical solutions, a kind of rail vehicles oil-pressure damper one-way valve, comprise valve body (also being valve seat) and spool, it is characterized in that: described spool is a kind of reed-type valve core structure, constitute by a kind of elastic valve plate and door that deformation can self take place, elastic valve plate is between door and valve body, and elastic valve plate can produce deformation under the pressure effect of both sides between door and valve body.The opening and closing of one-way valve are that the elastic valve plate by reed-type is out of shape and finishes.Elastic valve plate is the coil component spring steel thin slice that a thickness has only 0.2～0.25mm, has good elasticity and anti-flexing fatigue.The action of one-way valve opening and closing is by the pressure difference of elastic valve plate both sides, and when the pressure of valve body (valve body is piston or bottom valve) side during greater than the pressure of door side, elastic valve plate leaves valve body and is adjacent to door, and one-way valve opens is oily excessively; When door side pressure during greater than the valve body side pressure, elastic valve plate leaves door and is adjacent to valve body, closed check valve.Valve body and door and elastic valve plate can tighten together by set screw, also can be fixed together by alternate manners such as riveted joints, and the contacted inner side surface of elastic valve plate and valve body, or elastic valve plate and the contacted inner side surface of door, it is the conical surface that the surface of one side is wherein arranged, and to guarantee elastic valve plate enough spaces is arranged when being out of shape.
The present invention utilizes the elasticity of elastic valve plate, change the position shape of elastic valve plate by the pressure difference of valve both sides, finish the opening and closing of valve, do not have in the past fully the valve plate of one-way valve produces axially movable machinery action under the effect of spring and both sides pressure reduction, therefore avoided fully producing the different sound that is produced when moving axially by valve plate under the effect of spring and both sides pressure reduction, the actual tests proving effect is fine.
Description of drawings
Fig. 1 is example structure schematic representation of structure of the present invention;
Fig. 2 is another example structure schematic representation of structure of the present invention.
Among the figure: 1, valve body; 2, spool; 3, door; 4, elastic valve plate; 5, flowing hole; 6, seal ring; 7, set screw; 8, valve body flowing hole; 9, inner side surface; 10, inner side surface.
Embodiment
Accompanying drawing has provided a concrete implementation column of the present invention, and the present invention is further illustrated below in conjunction with accompanying drawing and implementation column.
From accompanying drawing 1 as can be seen, the present invention is a kind of rail vehicles oil-pressure damper one-way valve, comprise valve body 1 (also being valve seat) and spool 2, described spool 2 is a kind of reed-type valve core structure, constitute by a kind of elastic valve plate 4 and door 3 that deformation can self take place, elastic valve plate is between door and valve body, and elastic valve plate can produce deformation under the pressure effect of both sides between door 3 and valve body 1.The opening and closing of one-way valve are to finish by elastic valve plate 4 distortion of reed-type.Elastic valve plate 4 is coil component spring steel thin slices that a thickness has only 0.2～0.25mm, has good elasticity and anti-flexing fatigue.The action of one-way valve opening and closing is by the pressure difference of elastic valve plate 4 both sides, and when the pressure of valve body 1 (valve body is piston or bottom valve) side during greater than the pressure of door 3 sides, elastic valve plate 4 leaves valve body 1 and is adjacent to door 3, and one-way valve opens is oily excessively; When door 3 side pressure during greater than the valve body side pressure, elastic valve plate 4 leaves door 3 and is adjacent to valve body 1, closed check valve.There is fixed hole at the center of described elastic valve plate 4, is fixed between valve body 1 and the door 3 by fixed hole elastic valve plate 4.Valve body 1 can also can be fixed together by alternate manners such as riveted joints with door 3 and elastic valve plate 4 by set screw tight 7 admittedly together.And elastic valve plate 4 and valve body 1 contacted inner side surface 9, or elastic valve plate 4 and door 3 contacted inner side surfaces 10, it is the conical surface that the surface of one side is wherein arranged, so that enough spaces are arranged during the elastic valve plate distortion.Can be door 3 by the internal surface of elastic valve plate 4 one sides being the conical surface, also can be valve body 1 by the internal surface of elastic valve plate 4 one sides be the conical surface.Circumferential directions has several flowing holes in the door upper edge, along the circumferential direction also is furnished with several valve body flowing holes simultaneously on valve body 1, helps fluid and acts on elastic valve plate by door.In order to guarantee sealing, the place that contacts with elastic valve plate 4 at door 3 is provided with seal ring 6, and seal ring 6 can be an O shape rubber ring.
Accompanying drawing 2 is an alternative embodiment of the invention.From accompanying drawing 2 as can be seen spool 2 ' fixing pin of door 3 ' just, door 3 ' block be a backing pin ring, the backing pin ring is the fixing non-crushed element in center of elastic valve plate 4 just, and the race deformation of elastic valve plate 4 partly directly is open in a side of valve body 1.
Claims (10)
1, a kind of one-way valve of oil-pressure vibration reducer for railway, comprise valve body and spool, it is characterized in that: described spool is a kind of reed-type valve core structure, constitute by a kind of elastic valve plate and door that deformation can self take place, elastic valve plate is between door and valve body, elastic valve plate can produce deformation under the pressure effect of both sides between door and valve body, the opening and closing of one-way valve are that the elastic valve plate by reed-type is out of shape and finishes.
2, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1, it is characterized in that: the action of described one-way valve opening and closing is by the pressure difference of elastic valve plate both sides, when the pressure of valve body side during greater than the pressure of door side, elastic valve plate leaves valve body and is adjacent to door, and one-way valve opens is oily excessively; When door side pressure during greater than the valve body side pressure, elastic valve plate leaves door and is adjacent to valve body, closed check valve.
3, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1, it is characterized in that: the contacted inner side surface of described elastic valve plate and valve body, or elastic valve plate and the contacted inner side surface of door, it is the conical surface that the surface of one side is wherein arranged, and to guarantee elastic valve plate enough spaces is arranged when being out of shape.
4, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 3 is characterized in that: described door is the conical surface by the internal surface of elastic valve plate one side.
5, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 3 is characterized in that: described valve body is the conical surface by the internal surface of elastic valve plate one side.
6, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: described valve body and door and elastic valve plate tighten together by set screw.
7, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: described valve body and door and elastic valve plate are fixed together by the riveted joint mode.
8, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: described elastic valve plate is the coil component spring steel thin slice that a thickness has only 0.2～0.25mm.
9, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: described door upper edge circumferential directions has several flowing holes, along the circumferential direction also is furnished with several valve body flowing holes simultaneously on valve body.
10, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: the place that described door contacts with elastic valve plate is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710034464 CN101029670A (en) | 2007-02-15 | 2007-02-15 | One-way valve of oil-pressure vibration reducer for railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710034464 CN101029670A (en) | 2007-02-15 | 2007-02-15 | One-way valve of oil-pressure vibration reducer for railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101029670A true CN101029670A (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710034464 Pending CN101029670A (en) | 2007-02-15 | 2007-02-15 | One-way valve of oil-pressure vibration reducer for railway |
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| Country | Link |
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| CN (1) | CN101029670A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667603A (en) * | 2013-11-28 | 2015-06-03 | 浙江三花制冷集团有限公司 | Bidirectional filter and one-way valve component thereof |
| CN110410446A (en) * | 2019-07-22 | 2019-11-05 | 成都九鼎科技(集团)有限公司 | A kind of FCD valve valve architecture |
| CN111895030A (en) * | 2020-07-31 | 2020-11-06 | 台州科技职业学院 | Hydraulic compression damping valve |
| CN113090523A (en) * | 2021-04-15 | 2021-07-09 | 鑫磊压缩机股份有限公司 | Take screw compressor host computer of disk seat |
| CN115388220A (en) * | 2021-09-26 | 2022-11-25 | 广东骏驰科技股份有限公司 | Check valve with integrated valve block assembly |
-
2007
- 2007-02-15 CN CN 200710034464 patent/CN101029670A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667603A (en) * | 2013-11-28 | 2015-06-03 | 浙江三花制冷集团有限公司 | Bidirectional filter and one-way valve component thereof |
| CN104667603B (en) * | 2013-11-28 | 2017-04-19 | 浙江三花智能控制股份有限公司 | Bidirectional filter and one-way valve component thereof |
| CN110410446A (en) * | 2019-07-22 | 2019-11-05 | 成都九鼎科技(集团)有限公司 | A kind of FCD valve valve architecture |
| CN111895030A (en) * | 2020-07-31 | 2020-11-06 | 台州科技职业学院 | Hydraulic compression damping valve |
| CN113090523A (en) * | 2021-04-15 | 2021-07-09 | 鑫磊压缩机股份有限公司 | Take screw compressor host computer of disk seat |
| CN115388220A (en) * | 2021-09-26 | 2022-11-25 | 广东骏驰科技股份有限公司 | Check valve with integrated valve block assembly |
| CN115388220B (en) * | 2021-09-26 | 2024-02-13 | 广东骏驰科技股份有限公司 | One-way valve with integrated valve plate assembly |
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