CN215059109U - Damping adjusting device - Google Patents
Damping adjusting device Download PDFInfo
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- CN215059109U CN215059109U CN202120959193.9U CN202120959193U CN215059109U CN 215059109 U CN215059109 U CN 215059109U CN 202120959193 U CN202120959193 U CN 202120959193U CN 215059109 U CN215059109 U CN 215059109U
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Abstract
The utility model belongs to the technical field of the vehicle suspension, a damping adjusting device is disclosed, include: the valve block is assembled with a damper, a first check valve, a second check valve and an overflow valve; the valve block is provided with a first external oil port, a second external oil port, a third external oil port, a first oil duct, a second oil duct, a third oil duct and a fourth oil duct; the first external oil port, the damper and the second external oil port are connected through a first oil duct; the first external oil port, the first one-way valve and the second external oil port are connected through a second oil duct, and an oil inlet of the first one-way valve is communicated with the first external oil port; the first external oil port, the second one-way valve and the third external oil port are connected through a third oil duct, and an oil outlet of the second one-way valve is communicated with the first external oil port; the second external oil port, the overflow valve and the third external oil port are connected through a fourth oil duct. The utility model provides a damping adjusting device.
Description
Technical Field
The utility model relates to a vehicle suspension technical field, in particular to damping adjustment device.
Background
Along with the development of the automobile industry, the application of the hydro-pneumatic suspension on heavy and ultra-heavy off-road vehicles is also increasingly extensive, the good buffering and vibration damping performance of the hydro-pneumatic suspension needs to be realized by an adjustable damping device, in order to meet the actual requirements of engineering, the damping adjustment of the hydro-pneumatic suspension must have the advantages of reliable function and operability, and meanwhile, as the load of the hydro-pneumatic suspension has variability, a pressure valve for controlling the opening of the damping valve has the characteristic of being fast and adjustable. The existing adjustable damping modes include two modes, one mode is that the structural form of the damping is improved, the self damping is adjusted according to the change of the oil pressure in the shock absorber, although the damping has a good self-adaptive adjustment mode, the internal pressure valve is of a fixed pressure (differential pressure) opening type structure, and the opening pressure is not adjustable, so that the adjustment range of the damping is smaller, and the effect is more limited; the other method is that the opening degree of the damping hole is adjusted in an electrically driven mode according to the running condition of the vehicle through an external electric control mode to achieve damping adjustment, although the damping adjustment range is greatly improved compared with the first method, the implementation structure is complex, the reliability is poor, and the self-adaptive energy-saving performance of the system is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a damping adjusting device solves among the prior art damping adjusting device damped adjustment operation inconvenient, technical problem that the structure is complicated.
In order to solve the technical problem, the utility model provides a damping adjusting device, include: the valve block is assembled with a damper, a first check valve, a second check valve and an overflow valve;
the valve block is provided with a first external oil port, a second external oil port, a third external oil port, a first oil duct, a second oil duct, a third oil duct and a fourth oil duct;
the first external oil port, the damper and the second external oil port are connected through the first oil duct;
the first external oil port, the first one-way valve and the second external oil port are connected through the second oil duct, and an oil inlet of the first one-way valve is communicated with the first external oil port;
the first external oil port, the second one-way valve and the third external oil port are connected through the third oil duct, and an oil outlet of the second one-way valve is communicated with the first external oil port;
the second external oil port, the overflow valve and the third external oil port are connected through the fourth oil duct.
Further, a pressure measuring joint is further arranged on the valve block and communicated with the first oil channel.
Furthermore, the third external oil port is provided with a plug.
Further, the damper is a plug-in type damper.
Further, the first check valve is a compression check valve.
Further, the second check valve is an extension check valve.
Further, the overflow valve is a plug-in type overflow valve.
Further, the first one-way valve and the second one-way valve are cartridge type one-way valves.
Further, the second external oil port is arranged on the first surface of the valve block, the first check valve is arranged on the second plane of the valve block, the first external oil port and the damper are arranged on the third plane of the valve block, the third external oil port and the overflow valve are arranged on the fourth plane of the valve block, the second check valve is arranged on the fifth plane of the valve block, and a fixed mounting hole is formed in the sixth plane of the valve block.
Further, the pressure taps are disposed on the third plane.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the damping adjusting device provided in the embodiment of the application forms a second-stage damping adjusting device with rapidly adjustable pressure by matching the damper, the first check valve, the second check valve and the overflow valve which are detachably assembled through the valve block, the oil duct and the oil port which are formed in the valve block; meanwhile, the pressure regulating device is convenient to operate, high in integration level, simple in structure and convenient and fast in pressure regulation. Particularly, the primary damping adjustment of the hydro-pneumatic suspension can be realized by replacing the damper; the pressure of the overflow valve is adjusted, so that the expansion secondary damping break point of the oil-gas suspension can be adjusted; the quick adjustment of the second-stage damping pressure break point can be realized by controlling the oil flow between the first external oil port and the third external oil port. The damping adjusting device has the characteristics of convenience in installation, simple structure, easiness in disassembly, strong operability and high reliability. On the basis of the prior art, the problems of integrated design of an overflow valve, two one-way valves, a damper and other elements and valve blocks and rapid pressure adjustment of the overflow valve are mainly solved.
Drawings
Fig. 1 is a hydraulic schematic diagram of a damping adjustment device provided in an embodiment of the present invention;
fig. 2 is a schematic view of a first surface structure of a valve block according to an embodiment of the present invention;
fig. 3 is a schematic view of a third surface structure of a valve block according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a fourth structure of a valve block according to an embodiment of the present invention;
fig. 5 is a schematic view of a sixth structure of a valve block according to an embodiment of the present invention;
fig. 6 is a schematic view of a fifth surface structure of the valve block according to the embodiment of the present invention.
Detailed Description
The embodiment of the application provides a damping adjusting device, and solves the technical problems that in the prior art, the damping adjusting operation of the damping adjusting device is inconvenient and the structure is complex.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1, a damping adjustment apparatus includes: the valve block and the damper 3, the first check valve 2, the second check valve 5 and the overflow valve 7 which are assembled on the valve block; the valve block is provided with a first external oil port 1, a second external oil port 8, a third external oil port 6, a first oil duct, a second oil duct, a third oil duct and a fourth oil duct.
The first external oil port 1, the damper 3 and the second external oil port 8 are connected through the first oil passage; the first external oil port 1, the first check valve 2 and the second external oil port 8 are connected through the second oil duct, and an oil inlet of the first check valve 2 is communicated with the first external oil port 1; the first external oil port 1, the second check valve 5 and the third external oil port 6 are connected through the third oil duct, and an oil outlet of the second check valve 5 is communicated with the first external oil port 1; the second external oil port 8, the overflow valve 7 and the third external oil port 6 are connected through the fourth oil passage.
When the oil-gas suspension is assembled in an oil-gas suspension, the first external oil connection port 1 and the second external oil connection port 8 are respectively connected with an oil-gas spring or the external oil connection ports thereof and an energy accumulator through pipe joints; the third external oil port 6 is connected with a plug or an oil tank or the atmosphere according to actual requirements.
Further, a pressure measuring joint 4 is further arranged on the valve block, and the pressure measuring joint 4 is communicated with the first oil channel. Therefore, the pressure detection equipment is used for detecting the adjusting set pressure of the first external oil port 1, the second external oil port 8 and the overflow valve 7 through the pressure measuring joint 4.
In this embodiment, the third external oil port 6 is configured with a plug; the damper 3 is a plug-in type damper; the first one-way valve 2 is a compression one-way valve; the second one-way valve 5 is an extension one-way valve; the overflow valve 7 is a plug-in type overflow valve; the first one-way valve 2 and the second one-way valve 5 are cartridge type one-way valves.
Referring to fig. 2, 3, 4, 5 and 6, in this embodiment, the second external oil receiving port 8 is disposed on a first surface of the valve block, the first check valve 2 is disposed on a second plane of the valve block, the first external oil receiving port 1 and the damper 3 are disposed on a third plane of the valve block, the third external oil receiving port 6 and the overflow valve 7 are disposed on a fourth plane of the valve block, the second check valve 5 is disposed on a fifth plane of the valve block, and a fixed mounting hole 9 is opened on a sixth plane of the valve block; the pressure taps 4 are arranged on the third plane.
The operation will be described in detail below.
When the plug is installed at the third external oil port 6, the damping adjusting device is in a secondary damping adjusting state. The oil inside the hydro-pneumatic spring is communicated with the oil at the liquid end of the energy accumulator through the first external oil port 1, the damper 3 and the second external oil port 8.
When the hydro-pneumatic spring is compressed, the pressure of oil inside the hydro-pneumatic spring rises, and at the moment, the oil inside the hydro-pneumatic spring sequentially passes through the first external oil port 1, the damper 3 and the second external oil port 8 to enter the liquid end of the energy accumulator until the pressure of the oil inside the hydro-pneumatic spring and the pressure inside the energy accumulator reach a balanced state. When the pressure of the oil in the hydro-pneumatic spring rises fast, the oil in the hydro-pneumatic spring can simultaneously pass through the first external oil port 1 and then the first check valve 2 and the second external oil port 8 to enter the liquid end of the energy accumulator until the pressure of the oil in the hydro-pneumatic spring and the pressure in the energy accumulator reach a balanced state.
When the hydro-pneumatic spring is stretched, the pressure of the oil inside the hydro-pneumatic spring is reduced. When the pressure difference between the oil liquid pressure in the hydro-pneumatic spring and the oil liquid in the energy accumulator is smaller than the set pressure of the overflow valve 7, the oil liquid in the energy accumulator sequentially passes through the second external oil receiving port 8, the damper 3 and the first external oil receiving port 1 to enter the hydro-pneumatic spring until the pressure of the oil liquid in the hydro-pneumatic spring and the pressure in the energy accumulator reach a balanced state, the oil liquid flow rate is slow in the period, and the hydro-pneumatic suspension is in a first-stage damping state.
When the pressure difference between the oil pressure in the hydro-pneumatic spring and the oil pressure in the energy accumulator is larger than the set pressure of the overflow valve, one oil in the energy accumulator enters the hydro-pneumatic spring through the second external oil port, the second oil port of the damper, the first oil port of the damper and the first external oil port, and the other oil enters the hydro-pneumatic spring through the second external oil port, the oil inlet of the overflow valve, the oil outlet of the overflow valve, the oil inlet of the extension check valve, the oil outlet of the extension check valve and the first external oil port until the pressure of the oil in the hydro-pneumatic spring and the pressure difference in the energy accumulator reach the set pressure of the overflow valve, the flow rate of the oil is high during the period, and the hydro-pneumatic suspension is in a secondary damping state; along with the flowing of oil, the pressure difference between the oil pressure in the hydro-pneumatic spring and the oil pressure in the energy accumulator is further reduced, when the pressure difference between the oil pressure in the hydro-pneumatic spring and the oil pressure in the energy accumulator is smaller than the set pressure of the overflow valve 7, the valve port of the overflow valve 7 is closed, the oil in the energy accumulator can only enter the hydro-pneumatic spring through the second external oil receiving port 8, the damper 3 and the first external oil receiving port 1 in sequence until the pressure of the oil in the hydro-pneumatic spring and the pressure in the energy accumulator reach a balanced state, the flow rate of the oil is reduced in the period, and the hydro-pneumatic suspension recovers to a first-stage damping stage.
When the plug is detached from the third external oil port 6, the third external oil port 6 is connected with the atmosphere or an oil tank, and the second-stage damping adjusting device with the quickly adjustable pressure is in a pressure adjusting state. At the moment, oil at the external oil port is connected with an oil inlet of the overflow valve 7 through the damper 3 or the first check valve 2 under a certain condition, the adjustment of the overflow pressure can be realized by adjusting an adjusting rod at the end part of the overflow valve 7, and the oil flowing out of an oil outlet of the overflow valve during the adjustment of the overflow pressure is discharged to the atmosphere or flows back to an oil tank through the third external oil port 6, so that the purpose of quickly adjusting the expansion secondary damping pressure mutation point of the oil-gas suspension is achieved. And after the pressure regulation is finished, the plug is installed at the third external oil port again, and the secondary damping regulation device with the quickly adjustable pressure is recovered to be in a secondary damping regulation state.
The adjustment of the drift diameter of the damper can be realized by changing the specification of the plug-in type damper in the damping adjusting device, so that the purpose of adjusting the stretching primary damping of the hydro-pneumatic suspension is achieved.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the damping adjusting device provided in the embodiment of the application forms a second-stage damping adjusting device with rapidly adjustable pressure by matching the damper, the first check valve, the second check valve and the overflow valve which are detachably assembled through the valve block, the oil duct and the oil port which are formed in the valve block; meanwhile, the pressure regulating device is convenient to operate, high in integration level, simple in structure and convenient and fast in pressure regulation. Particularly, the primary damping adjustment of the hydro-pneumatic suspension can be realized by replacing the damper; the pressure of the overflow valve is adjusted, so that the expansion secondary damping break point of the oil-gas suspension can be adjusted; the quick adjustment of the second-stage damping pressure break point can be realized by controlling the oil flow between the first external oil port and the third external oil port. The damping adjusting device has the characteristics of convenience in installation, simple structure, easiness in disassembly, strong operability and high reliability. On the basis of the prior art, the problems of integrated design of an overflow valve, two one-way valves, a damper and other elements and valve blocks and rapid pressure adjustment of the overflow valve are mainly solved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A damping adjustment device, characterized by comprising: the valve block is assembled with a damper, a first check valve, a second check valve and an overflow valve;
the valve block is provided with a first external oil port, a second external oil port, a third external oil port, a first oil duct, a second oil duct, a third oil duct and a fourth oil duct;
the first external oil port, the damper and the second external oil port are connected through the first oil duct;
the first external oil port, the first one-way valve and the second external oil port are connected through the second oil duct, and an oil inlet of the first one-way valve is communicated with the first external oil port;
the first external oil port, the second one-way valve and the third external oil port are connected through the third oil duct, and an oil outlet of the second one-way valve is communicated with the first external oil port;
the second external oil port, the overflow valve and the third external oil port are connected through the fourth oil duct.
2. The damping adjustment device according to claim 1, characterized in that a pressure measuring joint is further provided on the valve block, the pressure measuring joint being in communication with the first oil passage.
3. The damping adjustment device of claim 1, wherein the third external oil port is provided with a choke plug.
4. The damping adjustment device of claim 1, wherein the damper is a cartridge damper.
5. The damping adjustment device of claim 1, wherein the first check valve is a compression check valve.
6. The damping adjustment device of claim 1, wherein the second check valve is a rebound check valve.
7. The damping adjustment device of claim 1, wherein the relief valve is a cartridge relief valve.
8. The damping adjustment device of claim 1, wherein the first one-way valve and the second one-way valve are cartridge one-way valves.
9. The damping adjustment device of claim 1, wherein the second external oil port is disposed on a first surface of the valve block, the first check valve is disposed on a second plane of the valve block, the first external oil port and the damper are disposed on a third plane of the valve block, the third external oil port and the overflow valve are disposed on a fourth plane of the valve block, the second check valve is disposed on a fifth plane of the valve block, and a fixed mounting hole is opened on a sixth plane of the valve block.
10. The damping adjustment device of claim 2, wherein the pressure tap is disposed on the third plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120959193.9U CN215059109U (en) | 2021-05-07 | 2021-05-07 | Damping adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120959193.9U CN215059109U (en) | 2021-05-07 | 2021-05-07 | Damping adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215059109U true CN215059109U (en) | 2021-12-07 |
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ID=79198690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120959193.9U Active CN215059109U (en) | 2021-05-07 | 2021-05-07 | Damping adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215059109U (en) |
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2021
- 2021-05-07 CN CN202120959193.9U patent/CN215059109U/en active Active
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