CN211449231U - No-load and heavy-load damping-adjustable hydro-pneumatic suspension hydraulic control device - Google Patents
No-load and heavy-load damping-adjustable hydro-pneumatic suspension hydraulic control device Download PDFInfo
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- CN211449231U CN211449231U CN202020057741.4U CN202020057741U CN211449231U CN 211449231 U CN211449231 U CN 211449231U CN 202020057741 U CN202020057741 U CN 202020057741U CN 211449231 U CN211449231 U CN 211449231U
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Abstract
The utility model provides an empty load and heavily load damping adjustable oil gas suspension hydraulic control device which characterized in that: the device comprises a single-acting oil cylinder, a safety valve, a ball valve, a one-way throttle valve, a normally open electromagnetic stop valve, a low-pressure energy accumulator, a one-way throttle valve, a normally closed electromagnetic stop valve, a high-pressure energy accumulator, a valve block, a pressure measuring device, a pressure sensor, a valve block and a pipeline. The device is used for the oil-gas suspension of the heavy vehicle, reduces the impact load transmitted to a frame by the uneven road surface, attenuates the vibration of a bearing system caused by the impact load, and improves the smoothness and the operation stability of the vehicle under the working conditions of no load and heavy load.
Description
Technical Field
The utility model relates to a no-load and heavy load damping adjustable oil gas suspension hydraulic control device, specific saying so relates to a be applicable to heavy engineering vehicle oil gas suspension hydraulic control device, belong to technical field such as hydraulic pressure, atmospheric pressure, electricity, vehicle.
Background
The suspension is an important assembly on the engineering vehicle, elastically connects the frame and the wheels, transmits all forces and moments, relieves impact load transmitted by uneven road surface, attenuates vibration of a bearing system caused by the impact load, and controls the motion law of the wheels so as to ensure that the vehicle has required smoothness and steering stability. The engineering vehicle has the disadvantages of poor driving road conditions, large vehicle load capacity, high gravity center position, large inertia and high requirements on convenience and comfort of operation for drivers. The vehicle with the hydro-pneumatic suspension has high speed, small rigidity of the suspension and small stroke of the oil cylinder when in no-load, and the rigidity of the suspension and the stroke of the oil cylinder are increased when in heavy load. In the existing suspension technology, after the component model is determined, the rigidity of the suspension is determined, so that the rigidity of the suspension cannot be automatically adjusted according to different loading amounts of a vehicle, and the gravity center of the vehicle cannot be kept unchanged. The riding comfort of the driver is reduced, and the vehicle turns over seriously, so that accidents happen.
Disclosure of Invention
The utility model discloses an it is to the weak point that exists among the above-mentioned prior art and design an empty load and heavy load damping adjustable oil gas suspension hydraulic control device.
The purpose of the utility model can be realized by the following technical measures:
the utility model discloses an empty load and heavy load damping adjustable oil gas suspension hydraulic control device includes single-action plunger hydro-cylinder, relief valve I, II, ball valve, pressure sensor, one-way choke valve I, II that sets up in the valve block, normally open electromagnetic ball valve, normally closed electromagnetic ball valve to and pressure measurement joint I, II, low pressure accumulator, high pressure accumulator, corresponding hydraulic pressure pipeline; wherein, the oil port of the single-acting plunger oil cylinder 1 is connectedOil outlet c of relief valve I, oil inlet a of relief valve I, the oil outlet a of b through high-pressure rubber tube access relief valve II respectively, b, oil inlet c of relief valve II connects oil outlet ① of ball valve, oil inlet ② of ball valve inserts pressure sensor respectively through the pipeline, and the P mouth of valve block, be provided with two oil circuits in the valve block, I hydraulic fluid port ① of one-way choke valve and II hydraulic fluid port ① of one-way choke valve link to each other with the P mouth of valve block, I hydraulic fluid port ② of one-way choke valve connects hydraulic fluid port ① of normally open electromagnetic ball valve, II hydraulic fluid port ② of one-way choke valve connects hydraulic fluid port ① of normally closed electromagnetic ball valve, hydraulic fluid port ② of1Pressure measuring port M1Connected with each other, oil port X1Connected with the oil port of the low-pressure accumulator through a pipeline, an oil port ② of the normally closed electromagnetic ball valve and an oil port X of the valve block2Pressure measuring port M2Connected with each other, oil port X2The oil port of the high-pressure energy accumulator is connected with the oil port of the high-pressure energy accumulator through a pipeline; and the pressure measuring joints I and II are composed of a pressure gauge and a sensor which display the time pressure in real time.
Furthermore, the damping of one-way throttle valve I, II can adjust the size alone. And the inflation pressure of the low-pressure energy accumulator and the inflation pressure of the high-pressure energy accumulator are independently set according to the load. And the normally open electromagnetic ball valve and the normally closed electromagnetic ball valve respectively control the connection or disconnection of the low-pressure energy accumulator and the high-pressure energy accumulator according to the load size. Normally open electromagnetic ball valve, normally closed electromagnetic ball valve, one-way throttle valve I, II, pressure measurement joint I, II adopt plate valve or cartridge valve.
Compared with the prior art, the utility model following beneficial effect has:
1. the hydraulic control device for the oil-gas suspension with adjustable no-load and heavy-load damping is adopted, the damping can be adjusted respectively, different inflation pressures of the energy storage devices are set, the running smoothness and safety of the vehicle are improved, and the comfort of drivers and passengers is improved.
2. The problem of current hydro-pneumatic suspension parameter confirm after, the damping is fixed, rigidity can not be adjusted along with the bearing capacity difference is solved, the stationarity, the security of vehicle can be improved.
Drawings
Fig. 1 is a hydraulic schematic diagram of the present invention.
Fig. 2 is an outline view of the integrated valve block of the present invention.
Fig. 3 is an outline view of the accumulator of the present invention.
Number in the figure: 1 single-action plunger cylinder, 2 relief valve I, 3 relief valve II, 4 ball valves, 5 pressure sensor, 6A, 6B one-way throttle valve I, II, 7 normally open electromagnetic ball valve, 8A, 8B pressure measurement joint I, II, 9 low pressure energy storage ware, 10 high pressure energy storage ware, 11 normally closed electromagnetic ball valve, 12 valve blocks.
Detailed Description
The present invention will be further explained with reference to the following embodiments (attached drawings):
as shown in fig. 1 and 2, the utility model discloses an empty load and heavy load damping adjustable oil gas suspension hydraulic control device includes single-action plunger oil cylinder 1, relief valve I, II 2, 3, ball valve 4, pressure sensor 5, set up check throttle valve I in valve block 12, II 6A, 6B, normally open electromagnetism ball valve 7, normally closed electromagnetism ball valve 11, and pressure measurement joint I, II 8A, 8B, low pressure energy storage 9, high pressure energy storage 10, corresponding hydraulic pressure pipeline, wherein, the hydraulic fluid port of single-action plunger oil cylinder 1 inserts the oil-out c of relief valve I2, the oil-out a of relief valve II 3, B are inserted respectively through the high-pressure rubber tube to the oil-out a of relief valve I2, the oil-out ① of relief valve II 3, the oil-in ② of relief valve II 3 inserts pressure sensor 5 respectively through the pipeline, and the P mouth of valve block 12, be provided with two oil circuits in valve block 12, check throttle valve I6A ① and check throttle valve II 6B oil port link to the P mouth of valve block 12, check throttle valve II 6A oil port of check throttle valve II 3 connects the oil port 48364 and the electromagnetic throttle valve oil port of electromagnetic ball valve 6778, the electromagnetic throttle valve 6711 oil port of electromagnetic ball valve 6711 connects the electromagnetic throttle valve II1Pressure measuring port M1Connected with each other, oil port X1Is connected with the oil port of the low-pressure accumulator 9 through a pipeline, and the oil port ② of the normally closed electromagnetic ball valve 11 and the oil port X of the valve block 122Pressure measuring port M2Connected with each other, oil port X2Is connected with an oil port of the high-pressure accumulator 10 through a pipeline; the pressure measuring joints I, II 8A and 8B are provided with a pressure meter and a pressure transmitter which display the pressure in real timeThe sensor is formed.
Furthermore, the damping of one-way throttle valve I, II 6A, 6B can adjust the size alone. The charging pressures of the low-pressure accumulator 9 and the high-pressure accumulator 10 (see fig. 3) are individually set according to the load size. The normally open electromagnetic ball valve 7 and the normally closed electromagnetic ball valve 11 respectively control the connection or disconnection of the low-pressure energy accumulator 9 and the high-pressure energy accumulator 10 according to the load. Normally open electromagnetic ball valve 7, normally closed electromagnetic ball valve 11, one-way throttle valve I, II 6A, 6B, pressure measurement joint I, II 8A, 8B adopt plate valve or cartridge valve.
The working principle of the utility model is as follows:
the utility model discloses a controlling means calculates and selects the energy storage ware model according to the empty load of vehicle and heavy load operating mode parameter, generally adopts the piston accumulator of high compression ratio, with low pressure energy storage ware 9 and high pressure energy storage ware 10 pre-charge constant pressure respectively. When the suspension works under the no-load working condition, the normally closed electromagnetic ball valve 11 is in a disconnected position when power is lost, the normally open electromagnetic ball valve 7 is in a connected position when power is lost, and the one-way throttle valve I6A is adjusted to adjust the damping of the suspension during the no-load. When a vehicle runs on a convex road surface, tires are impacted, the single suspension oil cylinder 1 is in a compression stroke, hydraulic oil enters through a port c of the safety valve I2, flows out of ports a and b of the safety valve I2, enters ports a and b of the safety valve II 3, enters an oil outlet of the ball valve 4 through the port c of the safety valve II 3, enters a port P of the valve block 12 through an oil inlet of the ball valve 4, enters through an oil port of the one-way throttle valve I6A, enters an oil port of the normally open electromagnetic ball valve 7 through an oil port of the one-way throttle valve I6A, enters the low-pressure energy accumulator 9 from the oil port of the normally open electromagnetic ball valve 7, and compresses a piston to compress gas in the energy accumulator and absorb impact. When a vehicle runs on a concave road surface, a tire descends, the single-action suspension oil cylinder 1 is in an extension stroke, hydraulic oil in the low-pressure energy accumulator 9 is discharged under the action of gas pressure, enters the oil port of the normally-open electromagnetic ball valve 7 from the port X1 of the valve block 12, enters the oil port of the one-way throttle valve I6A from the oil port of the normally-open electromagnetic ball valve 7, passes through the adjustable damping hole, enters the oil port of the one-way throttle valve I6A from the oil port of the one-way throttle valve I6A, enters the oil port of the ball valve 4, enters the port c of the safety valve II 3 from the oil port of the ball valve 4, flows out from the oil ports a and b of the safety valve II 3, enters the oil ports a and b of the safety valve I2, enters the single-action suspension oil cylinder 1.
During the behavior under the heavy load operating mode, normally closed electromagnetic ball valve 11 gets to the electricity and is in the connected position, and normally open electromagnetic ball valve 7 gets to the electricity and is in the disconnected position, adjusts choke valve II 6B, suspension damping size during adjustable heavy load. When a vehicle runs on a convex road surface, tires are impacted, the suspension oil cylinder 1 is in a compression stroke, hydraulic oil enters through the port c of the safety valve I2, flows out of the ports a and B of the safety valve I2, enters the ports a and B of the safety valve II 3, enters the oil port I of the ball valve 4 through the port c of the safety valve II 3, enters the port P of the valve block 12 through the oil port I of the ball valve 4, enters through the oil port I of the one-way throttle valve II 6B, enters the oil port I of the normally closed electromagnetic ball valve 11 from the oil port I of the one-way throttle valve II 6B, enters the high-pressure accumulator 10 from the oil port II of the normally closed electromagnetic ball valve, and compresses a piston, so that gas in the accumulator is compressed and absorbs the impact. When a vehicle runs on a concave road surface, a tire descends, the single-acting suspension cylinder 1 is in an extension stroke, hydraulic oil in the high-pressure energy accumulator 10 is discharged under the action of gas pressure, enters the oil port 11 of the normally closed electromagnetic ball valve from the port X2 of the valve block 12, enters the oil port of the one-way throttle valve II 6B from the oil port I of the normally closed electromagnetic ball valve, passes through the adjustable damping hole, enters the oil port of the one-way throttle valve II 6B from the oil port I of the one-way throttle valve II 6B, enters the oil port c of the safety valve II 3 from the oil port I of the ball valve, flows out of the oil ports a and B of the safety valve II 3, enters the oil ports a and B of the safety valve I2, enters the single-acting suspension cylinder 1 through the c port of the safety valve I2, and. The one-way throttle valves I, II 6A and 6B can respectively adjust the size of the damping holes according to no-load and heavy load. The pressure measuring joints I, II 8A and 8B can detect the pressure of the energy accumulator in real time; the pressure sensor 5 can detect the pressure of the suspension oil cylinder, feed back the pressure to the control system and automatically judge the empty/heavy load working condition of the vehicle.
Claims (5)
1. The utility model provides an empty load and heavily load damping adjustable oil gas suspension hydraulic control device which characterized in that: it comprises a single-acting plunger cylinder (1) The oil port of the single-acting plunger oil cylinder (1) is connected with the oil outlet c of the safety valve I (2), the oil inlets a and B of the safety valve I (2) are respectively connected with the oil outlets a and B of the safety valve II (3) through high-pressure rubber pipes, the oil inlets c and B of the safety valve I (2) are respectively connected with the oil outlets a and B of the safety valve II (3) through high-pressure rubber pipes, the oil inlet c of the safety valve II (3) is connected with the oil outlet ① of the ball valve (4), the oil inlet ② of the ball valve (4) is respectively connected with the pressure sensor (5) through a pipeline, the P port of the valve block (12) is provided with two oil passages in the valve block (12), the oil ports of the one-way throttle valve I (6A) ① and the oil port II of the one-way throttle valve II (6B) are connected with the P port of the valve block (12), the oil ports of the one-way throttle valve I (6A) and the oil ports II (11) are connected with the oil ports P port 48363 of the electromagnetic throttle valve block (11), the oil ports of the electromagnetic throttle valve block (11) and the oil ports (11) of the electromagnetic throttle valve block (11) are connected with the oil ports X-way throttle valve II (11) of the electromagnetic throttle valve (11), the oil ports (3), and the oil1Pressure measuring port M1Connected with each other, oil port X1Is connected with an oil port of a low-pressure accumulator (9) through a pipeline, and an oil port ② of a normally closed electromagnetic ball valve (11) and an oil port X of a valve block (12)2Pressure measuring port M2Connected with each other, oil port X2Is connected with an oil port of the high-pressure accumulator (10) through a pipeline; the pressure measuring joints I and II (8A and 8B) are composed of a pressure meter and a sensor which display time pressure in real time.
2. The adjustable empty and heavy damping hydro-pneumatic suspension hydraulic control device of claim 1, characterized in that: the damping of the one-way throttle valves I and II (6A and 6B) can be independently adjusted.
3. The adjustable empty and heavy damping hydro-pneumatic suspension hydraulic control device of claim 1, characterized in that: and the charging pressures of the low-pressure energy accumulator (9) and the high-pressure energy accumulator (10) are independently set according to the load.
4. The adjustable empty and heavy damping hydro-pneumatic suspension hydraulic control device of claim 1, characterized in that: and the normally open electromagnetic ball valve (7) and the normally closed electromagnetic ball valve (11) respectively control the connection or disconnection of the low-pressure energy accumulator (9) and the high-pressure energy accumulator (10) according to the load.
5. The adjustable empty and heavy damping hydro-pneumatic suspension hydraulic control device of claim 1, characterized in that: normally open electromagnetic ball valve (7), normally closed electromagnetic ball valve (11), one-way throttle valve I, II (6A, 6B), pressure measurement joint I, II (8A, 8B) adopt plate valve or cartridge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020057741.4U CN211449231U (en) | 2020-01-13 | 2020-01-13 | No-load and heavy-load damping-adjustable hydro-pneumatic suspension hydraulic control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020057741.4U CN211449231U (en) | 2020-01-13 | 2020-01-13 | No-load and heavy-load damping-adjustable hydro-pneumatic suspension hydraulic control device |
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| CN211449231U true CN211449231U (en) | 2020-09-08 |
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| CN202020057741.4U Active CN211449231U (en) | 2020-01-13 | 2020-01-13 | No-load and heavy-load damping-adjustable hydro-pneumatic suspension hydraulic control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431815A (en) * | 2021-06-02 | 2021-09-24 | 广州中洲环保科技有限公司 | Hydraulic energy storage type power-off protection integrated valve block |
| CN113606199A (en) * | 2021-08-04 | 2021-11-05 | 盾构及掘进技术国家重点实验室 | Rigidity and damp variable hydraulic control system for shield passive hinged oil cylinder |
| CN114508511A (en) * | 2020-11-16 | 2022-05-17 | 上海梅山钢铁股份有限公司 | Damping device of vehicle hydraulic system |
-
2020
- 2020-01-13 CN CN202020057741.4U patent/CN211449231U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508511A (en) * | 2020-11-16 | 2022-05-17 | 上海梅山钢铁股份有限公司 | Damping device of vehicle hydraulic system |
| CN113431815A (en) * | 2021-06-02 | 2021-09-24 | 广州中洲环保科技有限公司 | Hydraulic energy storage type power-off protection integrated valve block |
| CN113431815B (en) * | 2021-06-02 | 2023-02-14 | 广州中洲环保科技有限公司 | Hydraulic energy storage type power-off protection integrated valve block |
| CN113606199A (en) * | 2021-08-04 | 2021-11-05 | 盾构及掘进技术国家重点实验室 | Rigidity and damp variable hydraulic control system for shield passive hinged oil cylinder |
| CN113606199B (en) * | 2021-08-04 | 2023-11-21 | 盾构及掘进技术国家重点实验室 | Rigidity and damping variable shield passive articulated cylinder hydraulic control system |
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