CN201221586Y - One-way valve of railway oil pressure vibration damper - Google Patents
One-way valve of railway oil pressure vibration damper Download PDFInfo
- Publication number
- CN201221586Y CN201221586Y CNU2008200536201U CN200820053620U CN201221586Y CN 201221586 Y CN201221586 Y CN 201221586Y CN U2008200536201 U CNU2008200536201 U CN U2008200536201U CN 200820053620 U CN200820053620 U CN 200820053620U CN 201221586 Y CN201221586 Y CN 201221586Y
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- CN
- China
- Prior art keywords
- valve
- elastic
- valve plate
- valve body
- door
- 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
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Abstract
The utility model discloses a check valve of a railway oil pressure absorber including a valve body (valve seat) and a valve core; the valve core is a reed-type valve core structure and consists of an elastic valve plate which can automatically generate deformation and a baffling cover; the elastic valve plate is arranged between the baffling cover and the valve body; the elastic valve plate can be arranged between the baffling cover and the valve body and generate deformation under the pressure effects at the two sides. The opening and the closing of the check valve are accomplished through the deformation of the reed type elastic valve plate which is a round spring steel plate of 0.2 to 0.25mm with better elasticity and flexual fatigue. The motions of opening and closing the check valve depend on the pressure difference at the two sides of the elastic valve plate; when the pressure at the side of the valve body (the valve body is a piston or a bottom valve) is larger than the pressure at the side of the baffling cover, the elastic valve plate leaves the valve body and sticks closely to the baffling cover, then the check valve is opened for oil passing; when the pressure at the side of the baffling cover is larger than the pressure at the side of the valve body, the elastic valve plate leaves the and sticks closely to the valve body, then the check valve is closed.
Description
Technical field
The utility model 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.
The model utility content
The purpose of this utility model is, 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 purpose of this utility model is 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 utility model 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 utility model;
Fig. 2 is another example structure schematic representation of structure of the present utility model.
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 utility model, below in conjunction with accompanying drawing and implementation column the utility model is further described.
From accompanying drawing 1 as can be seen, the utility model 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 not another embodiment of the present utility model.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 (9)
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 is characterized in that: 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.
3, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 1 is characterized in that: described door is the conical surface by the internal surface of elastic valve plate one side.
4, 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.
5, the one-way valve of oil-pressure vibration reducer for railway as claimed in claim 3 is characterized in that: described valve body and door and elastic valve plate tighten together by set screw.
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 are fixed together by the riveted joint mode.
7, 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 of thickness 0.2～0.25mm.
8, 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.
9, 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 |
|---|---|---|---|
| CNU2008200536201U CN201221586Y (en) | 2008-07-04 | 2008-07-04 | One-way valve of railway oil pressure vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200536201U CN201221586Y (en) | 2008-07-04 | 2008-07-04 | One-way valve of railway oil pressure vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221586Y true CN201221586Y (en) | 2009-04-15 |
Family
ID=40575094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200536201U Expired - Fee Related CN201221586Y (en) | 2008-07-04 | 2008-07-04 | One-way valve of railway oil pressure vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221586Y (en) |
-
2008
- 2008-07-04 CN CNU2008200536201U patent/CN201221586Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20160704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |