CN210603891U - Flow testing device for bottom valve of shock absorber - Google Patents
Flow testing device for bottom valve of shock absorber Download PDFInfo
- Publication number
- CN210603891U CN210603891U CN201921737938.6U CN201921737938U CN210603891U CN 210603891 U CN210603891 U CN 210603891U CN 201921737938 U CN201921737938 U CN 201921737938U CN 210603891 U CN210603891 U CN 210603891U
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- Prior art keywords
- oil
- valve
- oil nozzle
- shock absorber
- support
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- Expired - Fee Related
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Abstract
A valve seat and a small support are positioned and fastened on the small support through a cylindrical surface in clearance fit, the small support is fixedly connected with a bottom plate, and the bottom plate is connected with an oil groove; the first outer diameter of the bottom valve is in clearance fit with the round hole of the valve seat, the second outer diameter of the bottom valve is in clearance fit with the round hole of the pressure ring, and a sealing element is embedded at the intersection of the valve seat, the bottom valve and the pressure ring; the oil nozzle is fixedly connected with a piston rod of the oil cylinder, the oil nozzle is also fixedly connected with an external oil supply pipe, an inner cavity of the oil nozzle is a cylindrical blind hole, a cylindrical blind hole opening of the oil nozzle is aligned to a round hole of the pressing ring, an annular groove for placing a sealing element is formed in the end part of the pressing ring, a cylindrical boss of the pressing ring is in clearance fit with the cylindrical hole of the oil nozzle, and the sealing element is embedded between the oil nozzle and the pressing ring; the oil cylinder is tightly mounted on the supporting plate, the supporting plate is tightly connected with the large support, and the large support is tightly connected with the bottom plate. The utility model discloses realize shock absorber bottom valve flow test, have simple structure, convenient operation and advantage such as the cost is lower.
Description
Technical Field
The utility model relates to a vehicle hydraulic shock absorber test equipment.
Background
The vehicle oil pressure vibration absorber is a special damper and is widely applied to vehicles such as automobiles, railway vehicles and the like. The bottom valve of the shock absorber mainly comprises a throttling hole, a valve plate and a pressure spring, and the cross-sectional area of oil liquid circulation is controlled through elastic deformation of the valve plate and the pressure spring so as to generate corresponding damping force. The advanced shock absorber assembly process generally requires that the flow of a bottom valve must be tested in the assembly process of a bottom valve assembly, the compression amount of a pressure spring is adjusted on line according to test data, and finally the pressure spring is riveted. However, the independent brand shock absorbers in China are rarely produced, so that the dispersion of the damping force of the product is large, and the requirements of middle-high-end vehicle suspensions are difficult to meet.
Therefore, the method and the means for effectively solving the problem of flow testing of the bottom valve of the shock absorber at lower cost are provided, and the method and the means have great significance for improving the manufacturing level of the self-branded shock absorber.
Disclosure of Invention
In order to overcome the not enough of the unable test shock absorber bottom valve flow of prior art, the utility model provides a shock absorber bottom valve flow testing arrangement has advantages such as simple structure, convenient operation and cost are lower.
The utility model provides a technical scheme that its technical problem adopted is:
a flow testing device for a bottom valve of a shock absorber comprises a valve seat, a small support, a bottom plate, an oil groove, a pressure ring, an oil nozzle, an oil cylinder, a supporting plate and a large support, wherein the valve seat and the small support are positioned and fastened on the small support through cylindrical surfaces in clearance fit; the first outer diameter of the bottom valve is in clearance fit with the round hole of the valve seat, the second outer diameter of the bottom valve is in clearance fit with the round hole of the pressure ring, and a sealing element is embedded at the intersection of the valve seat, the bottom valve and the pressure ring; the oil nozzle is fixedly connected with a piston rod of the oil cylinder, the oil nozzle is also fixedly connected with an external oil supply pipe, an inner cavity of the oil nozzle is a cylindrical blind hole, a cylindrical blind hole opening of the oil nozzle is aligned to a round hole of the compression ring, an annular groove for placing a sealing element is formed in the end part of the compression ring, a cylindrical boss of the compression ring is in clearance fit with a cylindrical hole of the oil nozzle, and the sealing element is embedded between the oil nozzle and the compression ring; the oil cylinder is fixedly arranged on the supporting plate, the supporting plate is fixedly connected with the large support, and the large support is fixedly connected with the bottom plate.
Further, the valve seat is fastened on the small support through a screw, the small support is fastened and connected with the bottom plate through a screw, and the bottom plate is connected with the oil groove through a screw.
And the oil nozzle is fixedly connected with a piston rod of the oil cylinder through threads, and is also fixedly connected with an external oil supply pipe through a threaded port.
Furthermore, the oil cylinder is fixedly arranged on the supporting plate through screws, the supporting plate is fixedly connected with the large support through screws, and the large support is fixedly connected with the bottom plate through screws.
Preferably, the sealing member is an O-ring.
The support plate and the large support can be manufactured into a whole.
The base plate and the oil groove can be manufactured into a whole.
The beneficial effects of the utility model are that: the flow test of the bottom valve of the shock absorber is realized, and the device has the advantages of simple structure, convenience in operation, lower cost and the like.
Drawings
FIG. 1 is a front view of a schematic of one embodiment of a shock absorber foot valve flow testing device.
FIG. 2 is a side view of a schematic of one embodiment of a damper foot valve flow testing arrangement.
FIG. 3 is a close-up view of a schematic view of one embodiment of a shock absorber foot valve flow testing arrangement.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the flow testing device for the bottom valve of the shock absorber comprises a valve seat 1, a small support 2, a bottom plate 3, an oil groove 4, a pressure ring 5, an oil nipple 6, an oil cylinder 7, a supporting plate 8 and a large support 9, wherein the valve seat 1 and the small support 2 are positioned through a cylindrical surface in clearance fit and are fastened on the small support 2 through screws, the small support 2 and the bottom plate 3 are fastened and connected through screws, and the bottom plate 3 is connected with the oil groove 4 through screws;
the first outer diameter of the bottom valve 10 is in clearance fit with the round hole of the valve seat 1, the second outer diameter of the bottom valve 10 is in clearance fit with the round hole of the pressing ring 5, and a first O-shaped sealing ring 11 is embedded at the intersection of the valve seat 1, the bottom valve 10 and the pressing ring 5;
The support plate 8 and the large support 9 can be made in one piece.
The floor 3 and the oil sump 4 can be made in one piece.
The working principle of the embodiment is as follows: the inner hole of the valve seat 1 and the inner hole of the pressure ring 5 are designed and manufactured according to the bottom valve 10 to be tested, belong to a tooling part and need to be replaced together with the bottom valve 10 to be tested, but the external shapes and sizes of the valve seat 1 and the pressure ring 5 are unchanged.
Fig. 1 and 2 show the device in a test mode of operation in relation to one another. When the test is started, external oil enters the inner cavity of the oil nozzle 6 from the oil inlet 13 through the oil supply pipe, flows through the inner hole of the compression ring 5, forcibly pushes open the valve plate of the bottom valve 10, flows through the inner cavity of the bottom valve 10 and enters the oil groove 4, and the arrow in fig. 3 illustrates the circulation route of the oil. Because the resistance of the bottom valve 10 to the oil liquid forms pressure difference on the upper side and the lower side of the bottom valve 10, the damping force of the bottom valve 10 can be converted by measuring the pressure difference and the oil body flow, and the testing purpose is achieved.
The O-rings 11 and 12 prevent oil from leaking from the contact mating surfaces between the related parts, thereby ensuring high test accuracy.
After the test of one workpiece is finished, the piston rod of the oil cylinder 7 retracts to drive the oil nozzle 6 to lift, at the moment, the compression ring 5 and the bottom valve 10 (namely the workpiece) are manually taken down and taken down together with the O-shaped sealing rings 11 and 12 to replace the next workpiece to be tested, and the continuous production can be realized by the circulation.
The automatic test of pressure and flow in the test process is completed by a hydraulic and measurement and control system, and is out of the scope of the application.
Claims (7)
1. A flow testing device for a bottom valve of a shock absorber is characterized by comprising a valve seat, a small support, a bottom plate, an oil groove, a pressure ring, an oil nozzle, an oil cylinder, a supporting plate and a large support, wherein the valve seat and the small support are positioned and fastened on the small support through cylindrical surfaces in clearance fit; the first outer diameter of the bottom valve is in clearance fit with the round hole of the valve seat, the second outer diameter of the bottom valve is in clearance fit with the round hole of the pressure ring, and a sealing element is embedded at the intersection of the valve seat, the bottom valve and the pressure ring; the oil nozzle is fixedly connected with a piston rod of the oil cylinder, the oil nozzle is also fixedly connected with an external oil supply pipe, an inner cavity of the oil nozzle is a cylindrical blind hole, a cylindrical blind hole opening of the oil nozzle is aligned to a round hole of the compression ring, an annular groove for placing a sealing element is formed in the end part of the compression ring, a cylindrical boss of the compression ring is in clearance fit with a cylindrical hole of the oil nozzle, and the sealing element is embedded between the oil nozzle and the compression ring; the oil cylinder is fixedly arranged on the supporting plate, the supporting plate is fixedly connected with the large support, and the large support is fixedly connected with the bottom plate.
2. The flow testing device of the bottom valve of the shock absorber as set forth in claim 1, wherein the valve seat is fastened to a small bracket by a screw, the small bracket is fastened to a bottom plate by a screw, and the bottom plate is connected to the oil groove by a screw.
3. The flow testing device for the bottom valve of the shock absorber as claimed in claim 1 or 2, wherein the oil nozzle is tightly connected with the piston rod of the oil cylinder through a thread, and the oil nozzle is also tightly connected with an external oil supply pipe through a thread opening.
4. The flow testing device for the bottom valve of the shock absorber as claimed in claim 1 or 2, wherein the oil cylinder is fixedly mounted on a support plate through screws, the support plate is fixedly connected with a large bracket through screws, and the large bracket is fixedly connected with the bottom plate through screws.
5. The flow testing apparatus of a base valve of a shock absorber as set forth in claim 1 or 2, wherein said seal is an O-ring seal.
6. The flow testing device of the bottom valve of the shock absorber as set forth in claim 1 or 2, wherein the support plate is integrally formed with the large bracket.
7. The flow testing apparatus of a base valve of a shock absorber as set forth in claim 1 or 2, wherein said bottom plate is integrally formed with the oil sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737938.6U CN210603891U (en) | 2019-10-16 | 2019-10-16 | Flow testing device for bottom valve of shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737938.6U CN210603891U (en) | 2019-10-16 | 2019-10-16 | Flow testing device for bottom valve of shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603891U true CN210603891U (en) | 2020-05-22 |
Family
ID=70722656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921737938.6U Expired - Fee Related CN210603891U (en) | 2019-10-16 | 2019-10-16 | Flow testing device for bottom valve of shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210603891U (en) |
-
2019
- 2019-10-16 CN CN201921737938.6U patent/CN210603891U/en not_active Expired - Fee Related
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Legal Events
| 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: 20200522 Termination date: 20211016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |