CN210889887U - Variable damping interconnected shock absorber - Google Patents
Variable damping interconnected shock absorber Download PDFInfo
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- CN210889887U CN210889887U CN201921188930.9U CN201921188930U CN210889887U CN 210889887 U CN210889887 U CN 210889887U CN 201921188930 U CN201921188930 U CN 201921188930U CN 210889887 U CN210889887 U CN 210889887U
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Abstract
The variable damping interconnected shock absorber comprises a cylinder, a piston rod assembly and a piston assembly, wherein the piston assembly is positioned in the cylinder, the piston rod assembly is connected with the piston assembly, an A cavity of the cylinder is provided with an AA oil port, a B cavity of the cylinder is provided with a BB oil port, and the variable damping interconnected shock absorber further comprises a valve body and a CMThrottle valve, CLThrottle valve, CSThrottle valve, first check valve, secondCheck valve and accumulator, CMThrottle valve, CLThrottle valve, CSThe throttle valve, the first check valve, the second check valve and the energy accumulator are integrated on the valve body and are connected with each other through an oil path inside the valve body. The utility model has the advantages of "damping" and "interconnection" performance are all good to it is simpler, the cost is lower to have the system.
Description
Technical Field
The utility model belongs to the technical field of the vehicle suspension, especially variable damping interconnection suspension.
Background
Interconnected suspension technology has been widely accepted by academia for its excellent anti-roll, anti-pitch capabilities. Why is it not yet widely used by the industry? One important reason is that the suspension is interconnected, but the performance of the original shock absorber is limited by the interconnection, so that the shock absorbing capacity and the ground catching capacity of the automobile suspension are reduced. This problem has not been a good solution.
Disclosure of Invention
For solving the above-mentioned problem that current interconnected suspension technique exists, the utility model provides a variable damping interconnected shock absorber combines shock absorber and interconnected suspension technique, has "damping" and "interconnection" performance and all good to have advantages such as the system is simpler, the cost is lower.
The utility model provides a technical scheme that its technical problem adopted is:
the variable damping interconnected shock absorber comprises a cylinder, a piston rod assembly and a piston assembly, wherein the piston assembly is positioned in the cylinder, the piston rod assembly is connected with the piston assembly, an A cavity of the cylinder is provided with an AA oil port, a B cavity of the cylinder is provided with a BB oil port, and the variable damping interconnected shock absorber further comprises a valve body and a CMThrottle valve, CLThrottle valve, CSA throttle valve, a first check valve, a second check valve and an accumulator, CMThrottle valve, CLThrottle valve, CSThe throttle valve, the first one-way valve, the second one-way valve and the accumulator are integratedThe valve body;
said C isLThe throttle valve is connected with the first one-way valve in series to form a first one-way throttle passage from a node E to a node F; said C isSThe throttle valve is connected with the second one-way valve in series to form a second one-way throttling passage from a node F to a node E, and the first one-way throttling passage and the second one-way throttling passage are connected in parallel;
the node E is communicated with the oil way A, the node F is communicated with the oil way B, and the node CMThe throttle valve is arranged on an oil path B, the oil path B is communicated with a BB oil port, the oil path A is communicated with an AA oil port, and the energy accumulator is connected to the oil path CMThrottle valve, CLThrottle valve, CSAnd the oil path between the throttle valve and the BB oil port.
Further, the oil circuit A is provided with an oil port A connected with the outside, and the oil circuit B is provided with an oil port B connected with the outside.
Still further, the valve body and the cylinder body are of an integrated structure.
Furthermore, the oil port A and the oil port B of the variable damping interconnected shock absorber are respectively communicated with the oil port A 'and the oil port B' of another variable damping interconnected shock absorber to form an interconnected system.
And the oil ports B and A 'of the interconnected shock absorbers can be respectively communicated with the oil ports D and C' of other interconnected shock absorbers to form a larger interconnected system.
The beneficial effects of the utility model are that: the vibration damping system has good vibration damping performance and interconnection performance, has the advantages of simple system, low cost and the like, and has practical value for passenger vehicles, commercial vehicles, special vehicles, rail vehicles and the like.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present variable damping interconnected shock absorber.
FIG. 2 is a schematic view of one embodiment of an interconnected system of two variable damping interconnected shock absorbers.
FIG. 3 is a schematic diagram of one embodiment of an interconnected system of four variable damping interconnected shock absorbers.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the variable damping interconnected shock absorber comprises a cylinder 1, a piston rod assembly 2 and a piston assembly 20, wherein the piston assembly 20 is located in the cylinder 1, the piston rod assembly 2 is connected with the piston assembly 20, a cylinder connecting end 3 is arranged at the bottom of the cylinder 1, a piston rod connecting end 4 is arranged at the end of the piston rod assembly 2, an AA oil port 19 is arranged in a cavity a of the cylinder 1, a BB oil port 18 is arranged in a cavity B of the cylinder 1, and the variable damping interconnected shock absorber further comprises a valve body 7 and a valve body CMThrottle valve 10, CLThrottle valve 11, CSA throttle valve 12, a first check valve 13, a second check valve 14, an accumulator 15, CMThrottle valve 10, CLThrottle valve 11, CSThe throttle valve 12, the first check valve 13, the second check valve 14 and the accumulator 15 are integrated on the valve body 7 and are connected with each other through an oil path inside the valve body, and the specific connection relationship is as follows:
said section CLThe flow valve 11 is connected in series with a first one-way valve 13 to form a first one-way throttling passage from a node E to a node F; said C isSThe throttle valve 12 is connected with the second one-way valve 14 in series to form a second one-way throttling passage from nodes F to E, and the first one-way throttling passage and the second one-way throttling passage are connected in parallel;
the node E is communicated with the oil way A17, the node F is communicated with the oil way B16, and the node CMThe throttle valve 10 is arranged on an oil path B16, the oil path B16 is communicated with a BB oil port 18, the oil path A17 is communicated with an AA oil port 19, and the energy accumulator is connected to the oil path CMThrottle valve 10, CLThrottle valve 11, CSOn the oil path between the throttle valve 12 and the BB port 18.
The oil path A17 is provided with an oil port A9 connected with the outside, and the oil path B16 is provided with an oil port B8 connected with the outside.
The valve body 7 and the cylinder body 1 are of an integrated structure.
The variable damping interconnected shock absorbers are used in pairs and are connected in the embodiment shown in figures 2 and 3:
the oil port A9 and the oil port B8 of the variable damping interconnected shock absorber are respectively communicated with the oil port A '22 and the oil port B' 21 of the other variable damping interconnected shock absorber to form an interconnected system.
The oil ports B8 and A '22 of the interconnection system can also be respectively communicated with the oil ports D24 and C' 26 of other interconnection systems to form a larger interconnection system.
The working principle of the interconnection system is illustrated by the embodiment of fig. 2:
typically, the cylinder connection ends 3 and 27 are connected to the unsprung mass, respectively, the piston rod connection ends 4 and 28 are connected to the sprung mass,
generally, the damping values of the respective throttle valves are set in the following relationship:
CL＝CL’，CM＝CM’，CS＝CS’
CL>CM>CS
taking anti-roll as an example, when the sprung mass moves in a counterclockwise roll, on the one hand, the piston rod assembly 2 is pressed into the cylinder 1, so that the oil pressure in the B chamber 5 is increased, oil flows out from the BB oil port 18, part of the oil flows into and fills the a chamber 6 through the AA oil port 19 via the throttle valve 12 and the check valve 14, part of the oil is pressed into the accumulator 15, flows out through the throttle valve 10 and the B oil port 8, and part of the oil flows out of the a oil port 9,
on the other hand, the piston rod assembly 39 is pulled out of the cylinder 40, which causes the oil pressure in the a chamber 30 to rise, the oil flows out from the AA ' port 38, a small part of the oil flows into the B chamber 29 through the BB ' port 37 via the check valve 35 and the throttle valve 33, and is discharged and filled up by the accumulator 32, and a part of the oil flows out of the B ' port 21 to meet the oil from the B port 8, which causes the oil to be unable to flow, the oil pressure rises and is conducted to the a chamber 30 and the B chamber 5,
the hydraulic pressure conducted back to chamber a 30 and the hydraulic pressure conducted back to chamber B5 prevent the piston rod assembly 39 from further extending out of the cylinder 40 and the piston rod assembly 2 from further entering the cylinder 1, respectively, thereby preventing counterclockwise roll movement of the sprung mass, completing the anti-roll task,
during the oil flowing process, part of oil firstly passes through the throttle valve 12 and is in one wayValve 14 ", a corresponding C is generatedSThe smaller damping force realizes the task of 'compressing damping force' equivalent to the traditional shock absorber; when a small part of oil passes through the check valve 35 and the throttle valve 33, a corresponding C is generatedLThe larger damping force of ' realizes the task of ' stretching damping force ' equivalent to that of the traditional shock absorber.
Claims (5)
1. The utility model provides a variable damping interconnected shock absorber, includes barrel, piston rod assembly and piston assembly, the piston assembly is located the barrel, the piston rod assembly is connected with the piston assembly, its characterized in that: the A cavity of the cylinder body is provided with an AA oil port, the B cavity is provided with a BB oil port, and the variable damping interconnected shock absorber further comprises a valve body and a CMThrottle valve, CLThrottle valve, CSA throttle valve, a first check valve, a second check valve and an accumulator, CMThrottle valve, CLThrottle valve, CSThe throttle valve, the first check valve, the second check valve and the energy accumulator are integrated on the valve body;
said C isLThe throttle valve is connected with the first one-way valve in series to form a first one-way throttle passage from a node E to a node F; said C isSThe throttle valve is connected with the second one-way valve in series to form a second one-way throttling passage from a node F to a node E, and the first one-way throttling passage and the second one-way throttling passage are connected in parallel;
the node E is communicated with the oil way A, the node F is communicated with the oil way B, and the node CMThe throttle valve is arranged on an oil path B, the oil path B is communicated with a BB oil port, the oil path A is communicated with an AA oil port, and the energy accumulator is connected to the oil path CMThrottle valve, CLThrottle valve, CSAnd the oil path between the throttle valve and the BB oil port.
2. The variable damping interconnected shock absorber as set forth in claim 1, wherein: the oil circuit A is provided with an oil port A connected with the outside, and the oil circuit B is provided with an oil port B connected with the outside.
3. A variable damping interconnected shock absorber as set forth in claim 1 or claim 2 wherein: the valve body and the cylinder body are of an integrated structure.
4. A variable damping interconnected shock absorber as set forth in claim 1 or claim 2 wherein: and the oil port A and the oil port B of the variable damping interconnected shock absorber are respectively communicated with the oil port A 'and the oil port B' of the other variable damping interconnected shock absorber to form an interconnected system.
5. The variable damping interconnected shock absorber as set forth in claim 4, wherein: and the oil ports B and A 'of the interconnected shock absorbers can be respectively communicated with the oil ports D and C' of other interconnected shock absorbers to form a larger interconnected system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019206880751 | 2019-05-14 | ||
| CN201920688075 | 2019-05-14 |
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| Publication Number | Publication Date |
|---|---|
| CN210889887U true CN210889887U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921188930.9U Active CN210889887U (en) | 2019-05-14 | 2019-07-26 | Variable damping interconnected shock absorber |
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| CN (1) | CN210889887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307284A (en) * | 2019-05-14 | 2019-10-08 | 浙江工业大学 | A kind of adaptive damping interconnection damper |
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2019
- 2019-07-26 CN CN201921188930.9U patent/CN210889887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307284A (en) * | 2019-05-14 | 2019-10-08 | 浙江工业大学 | A kind of adaptive damping interconnection damper |
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