CN214838077U - Valve plate type piston structure, oil pressure shock absorber using same and railway vehicle - Google Patents
Valve plate type piston structure, oil pressure shock absorber using same and railway vehicle Download PDFInfo
- Publication number
- CN214838077U CN214838077U CN202023305951.XU CN202023305951U CN214838077U CN 214838077 U CN214838077 U CN 214838077U CN 202023305951 U CN202023305951 U CN 202023305951U CN 214838077 U CN214838077 U CN 214838077U
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- Prior art keywords
- valve plate
- piston
- piston structure
- oil pressure
- shock absorber
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- 239000006096 absorbing agent Substances 0.000 title abstract description 14
- 230000035939 shock Effects 0.000 title abstract description 14
- 238000010276 construction Methods 0.000 claims 2
- 238000013016 damping Methods 0.000 abstract description 14
- 230000006978 adaptation Effects 0.000 abstract description 4
- 230000003137 locomotive effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a valve block formula piston structure and use its oil pressure shock absorber, rail vehicle relates to rail locomotive and oil pressure shock absorber's for the vehicle piston structure technical field, and it can be under the same valve block combination quantity with among the prior art, produce more products of bigger damping force adaptation. Valve plate formula piston structure, include: the piston body, the piston body and the support surface that lock nut corresponds are the inclined plane that has 0.1 inclination, and be provided with first disk group between piston body and the lock nut. The utility model discloses mainly be applied to among the oil pressure shock absorber for rail locomotive and vehicle.
Description
Technical Field
The utility model relates to a rail locomotive and for vehicle oil pressure shock absorber's piston structure technical field especially relate to a valve block formula piston structure and use its oil pressure shock absorber, rail vehicle.
Background
At present, the valve plate type piston structure of the existing oil pressure damper for the railway vehicle is widely used due to the advantages of simple structure, low cost, high assembly efficiency and easy realization of automatic assembly.
Specifically, the valve plate type piston structure usually generates different force value requirements by combining and stacking the valve plates, and when the damping value requirement of the oil pressure damper is large, the requirement can be met by a plurality of groups of valve plates.
However, the inventor of the present invention has found that how to provide a valve plate type piston structure and an oil damper and a rail vehicle using the same, which can generate a larger damping force to accommodate more products with the same number of valve plate combinations as the original structure, has become a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a valve block formula piston structure and use its oil pressure shock absorber, rail vehicle, it can produce more products of bigger damping force adaptation under the same valve block combination quantity among the with prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a valve plate piston structure comprising: the piston body, the piston body and the support surface that lock nut corresponds are the inclined plane that has 0.1 inclination, and be provided with first disk group between piston body and the lock nut.
During practical application, valve block formula piston structure still includes: the piston body is sleeved on the outer side of the piston rod, and the locking nut is screwed with the piston rod.
The first valve plate group is sleeved on the outer side of the piston rod, and a gasket is arranged between the first valve plate group and the locking nut.
Specifically, a stopper is sleeved at one end, far away from the locking nut, of the piston rod, and a second valve plate group is arranged between the stopper and the piston body.
Compared with the prior art, valve block formula piston structure have following advantage:
the utility model provides an among the valve block formula piston structure, because the holding surface that piston body and lock nut correspond is for having the inclined plane at 0.1 inclination, and be provided with first valve piece group between piston body and the lock nut, consequently when lock nut compresses tightly first valve piece group, no longer be the plane compress tightly, but become valve piece group predeformation under the effect on 0.1 inclination inclined plane, thereby valve piece group predeformation can produce certain pretightning force, and then make the oil pressure shock absorber under the same damping force requirement, can use still less valve block combination quantity in order to reach the damping force requirement.
An oil damper comprising: a valve plate piston arrangement as claimed in any one of the preceding claims.
A rail vehicle, comprising: the valve plate type piston structure is characterized in that the valve plate type piston structure comprises a valve plate type piston body and a valve plate type piston body;
or the oil damper described above.
The oil pressure damper and the rail vehicle have the same advantages with the valve plate type piston structure compared with the prior art, and the description is omitted.
That is, the utility model provides a valve block formula piston structure and use its oil pressure shock absorber, rail vehicle can make valve block group produce certain predeformation when locking, and the pretightning force of its formation can make shock absorber damping force form required valve block combination quantity and reduce to can produce more products of bigger damping force adaptation under the same valve block combination quantity with the primary structure.
Drawings
Fig. 1 is a schematic view of a partial structure of a valve plate type piston structure provided in an embodiment of the present invention;
fig. 2 is the embodiment of the present invention provides a schematic cross-sectional structure diagram of a valve plate type piston structure.
Reference numerals:
1-a piston body; 11-a support surface; 2-locking the nut; 3-a first set of valve discs; 4-a piston rod; 5-a gasket; 6-a stopper; 7-second valve plate group.
Detailed Description
For convenience of understanding, the valve plate type piston structure and the oil pressure damper and the rail vehicle using the same provided by the embodiments of the present invention are described in detail below with reference to the drawings of the specification.
The embodiment of the utility model provides a valve block formula piston structure, as shown in fig. 1 and fig. 2, include: the supporting surface 11 of the piston body 1, which corresponds to the locking nut 2, is an inclined surface with an inclination angle of 0.1 degree, and a first valve plate group 3 is arranged between the piston body 1 and the locking nut 2.
Compared with the prior art, the embodiment of the utility model provides a valve block type piston structure have following advantage:
the embodiment of the utility model provides an among the valve block formula piston structure, because the inclined plane of the holding surface 11 that piston body 1 and lock nut 2 correspond for having 0.1 inclination, and be provided with first valve block group 3 between piston body 1 and the lock nut 2, consequently when lock nut 2 compresses tightly first valve block group 3, no longer the plane compresses tightly, but become valve block group predeformation under the effect on 0.1 inclination inclined plane, thereby valve block group predeformation can produce certain pretightning force, and then make oil pressure shock absorber under the same damping force requirement, can use still less valve block combination quantity in order to reach the damping force requirement.
During practical application, as shown in fig. 2, the embodiment of the utility model provides a valve block type piston structure can also include: and the piston rod 4, the piston body 1 can be sleeved on the outer side of the piston rod 4, and the locking nut 2 can be screwed with the piston rod 4.
As shown in fig. 2, a first valve plate set 3 may be sleeved outside the piston rod 4, and a gasket 5 may be disposed between the first valve plate set 3 and the lock nut 2.
Specifically, as shown in fig. 2, one end of the piston rod 4 away from the lock nut 2 may be sleeved with a stopper 6, and a second valve plate group 7 may be disposed between the stopper 6 and the piston body 1.
The assembly process, the use process and the working principle of the valve plate type piston structure provided by the embodiment of the invention are explained in detail in the following with the attached drawings:
as shown in fig. 1 and fig. 2, during assembly, the piston rod 4 is firstly sleeved into the stopper 6, the second valve plate group 7 is sleeved at the positioning end of the piston rod 4, the piston body 1 is sleeved on the piston rod 4 and is tightly contacted with the second valve plate group 7, the first valve plate group 3 is sleeved along the piston rod 4 and is contacted with the supporting surface 11 of the piston body 1, then the gasket 5 is assembled, and finally the lock nut 2 is screwed to load torque and achieve the specified torque; after the assembly is completed, the valve plate group is predeformed under the pressure generated by the locking nut 2 and is tightly attached to the supporting surface 11 with the inclination of 0.1 degree of the piston body 1, and a certain pretightening force can be generated due to the deformation of the valve plate group, so that the damping force value reached by the prior art can be achieved by using less valve plate combination quantity.
When the valve plate group adjusting device is used, a torque wrench or a tightening machine is adopted to apply torque to the locking nut 2, the locking nut 2 generates pressure on the first valve plate group 3 in the rotating and downward moving process, the supporting surface 11 of the piston body 1 supporting the first valve plate group 3 is inclined by 0.1 degrees, so that the valve plate group is forced to deform, when the deformed valve plate group is in contact with the piston body 1, the torque is increased, and the assembly is completed when the specified torque is reached, so that the pretightening force of the valve plate group reaches the specified value, the larger damping force can be adjusted by the same valve plate group number as that in the prior art, and the adjustable range is effectively enlarged.
An embodiment of the utility model provides an oil damper is provided again, include: a valve plate piston arrangement as claimed in any one of the preceding claims.
An embodiment of the utility model provides a rail vehicle is provided again, include: the valve plate type piston structure is characterized in that the valve plate type piston structure comprises a valve plate type piston body and a valve plate type piston body; alternatively, the oil damper is included.
To sum up, the embodiment of the utility model provides a valve block formula piston structure and use its oil pressure shock absorber, rail vehicle can make valve block group produce certain predeformation when locking, and the pretightning force of its formation can make shock absorber damping force form required valve block combination quantity and reduce to can produce more products of bigger damping force adaptation under the valve block combination quantity the same with the primary structure.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A valve plate type piston structure, comprising: the piston body, the supporting surface that the piston body corresponds with lock nut is the inclined plane that has the inclination, and be provided with first disk group between piston body and the lock nut.
2. A valve-plate piston structure according to claim 1, characterized in that the support surface is a slope with an inclination of 0.1 °.
3. A valve plate piston structure according to claim 1 or 2, further comprising: the piston body is sleeved on the outer side of the piston rod, and the locking nut is screwed with the piston rod.
4. The valve plate type piston structure of claim 3, wherein the first valve plate set is sleeved outside the piston rod, and a gasket is arranged between the first valve plate set and the lock nut.
5. The valve plate type piston structure of claim 3, wherein a stopper is sleeved on one end of the piston rod away from the lock nut, and a second valve plate group is arranged between the stopper and the piston body.
6. An oil damper, comprising: a valve plate piston construction according to any one of claims 1-5.
7. A rail vehicle, comprising: a valve-plate piston construction according to any one of claims 1-5;
or, an oil damper according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023305951.XU CN214838077U (en) | 2020-12-31 | 2020-12-31 | Valve plate type piston structure, oil pressure shock absorber using same and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023305951.XU CN214838077U (en) | 2020-12-31 | 2020-12-31 | Valve plate type piston structure, oil pressure shock absorber using same and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214838077U true CN214838077U (en) | 2021-11-23 |
Family
ID=78955643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023305951.XU Expired - Fee Related CN214838077U (en) | 2020-12-31 | 2020-12-31 | Valve plate type piston structure, oil pressure shock absorber using same and railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214838077U (en) |
-
2020
- 2020-12-31 CN CN202023305951.XU patent/CN214838077U/en not_active Expired - Fee Related
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| 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: 20211123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |