CN220163611U - Interconnected hydraulic air suspension for oil field vehicle and control system thereof - Google Patents
Interconnected hydraulic air suspension for oil field vehicle and control system thereof Download PDFInfo
- Publication number
- CN220163611U CN220163611U CN202321303225.5U CN202321303225U CN220163611U CN 220163611 U CN220163611 U CN 220163611U CN 202321303225 U CN202321303225 U CN 202321303225U CN 220163611 U CN220163611 U CN 220163611U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- oil
- air suspension
- control system
- guide arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 80
- 239000003921 oil Substances 0.000 claims abstract description 99
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The utility model relates to an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof, which consist of the hydraulic air suspension and a suspension height control system. The double-bridge suspension system is composed of two single-bridge suspensions, and the two single-bridge suspensions have the same structure and arrangement mode. The single-axle suspension system consists of a hydraulic oil cylinder, an oil cylinder bracket, a guide arm bracket, a transverse thrust rod bracket and the like. In order to ensure the running stability of the vehicle, two-stage pressure accumulators are arranged on the left side and the right side of the double-axle, and the accumulators are respectively connected with a left (right) middle oil cylinder and a left (right) rear oil cylinder through oil pipes to provide rigidity and damping functions for the system. Based on the suspension system, a suspension height control system is matched for facilitating the loading and unloading of cargoes and the maintenance of users, and manual and automatic adjustment is supported. The hydraulic oil truck has the characteristics of simplified structure, flexible arrangement, large ground clearance, strong bearing capacity, large roll rigidity, quick system response and the like, and meets the requirements of severe and complex transportation environments of the oil truck.
Description
Technical Field
The utility model relates to the technical field of air suspensions. In particular to an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof.
Background
According to the specification of GB7258-2017, technical Condition for safety of motor vehicle operation, 9.4, the rear axle of dangerous goods transport vehicle with total mass greater than or equal to 12000kg in 2020, all dangerous goods transport semi-trailers, and three-axle fence type warehouse grid semi-trailers must be equipped with air suspension, and in order to meet national regulations, such vehicle rear axle must be equipped with rear air suspension.
At present, an oil-transporting vehicle for an oil field belongs to dangerous goods transport vehicles, and the rear suspension is also provided with an air suspension, but the vehicles are driven on non-paved roads such as mountain areas and the wild fields, and the driving working conditions of the vehicles are poor, so that the air suspension system has more faults, such as faults of damaged thrust rods, worn air spring capsules, oil leakage of a shock absorber and the like, which cause complaints of users and prevent the oil-transporting vehicle for the oil field from being popularized in the market. In order to meet the market segment requirements and give consideration to national regulations, the utility model develops an interconnected hydraulic air suspension system for the oilfield vehicle, which replaces the air suspension with the existing air spring structure so as to improve the reliability of the suspension system.
Disclosure of Invention
The utility model aims to solve the problems in the background art, and aims to provide an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof, which are used for solving the problems.
Solution for solving the problem
An interconnected hydraulic air suspension for an oilfield vehicle, the hydraulic air suspension comprising: the device comprises a guide arm bracket, a frame, a first drive axle, a hydraulic oil cylinder bracket, a hydraulic oil cylinder, a guide arm, a second drive axle, a clamping plate and a riding bolt;
the upper end of the hydraulic cylinder is fixed with the outer side of the frame through a hydraulic cylinder bracket, and the lower end of the hydraulic cylinder is fixed at one end of the guide arm;
the guide arm support is respectively fixed at the front end and the middle part of the outer side of the frame and used for fixing the other end of the guide arm, and after the clamping plate is arranged on the guide arm, the clamping plate, the first drive axle or the second drive axle are fixed together through the riding bolt.
Further, the upper ends of the two sides of the first drive axle and the second drive axle are provided with limiting blocks, and the limiting blocks are fixedly arranged at the bottom of the frame.
Further, the first drive axle and the second drive axle are both provided with transverse thrust rods, one end of each transverse thrust rod is fixed on the inner side of the frame through a transverse thrust bracket, and the other end of each transverse thrust rod is fixed on the first drive axle; one end of the transverse thrust rod is fixed on the inner side of the frame through a transverse thrust bracket, and the other end of the transverse thrust rod is fixed on the second drive axle.
Further, the guide arm is of a Z-shaped structure and plays a role in guiding and transferring load;
the guide arm support is designed into a butterfly shape, two wings are respectively connected with the side face of the frame, the lower part of the tail wing is provided with a mounting point of the guide arm, and the guide arm support has the characteristics of high strength, light weight and attractive structure when meeting the bearing.
An interconnected hydraulic air suspension control system for an oilfield vehicle is used for controlling the air suspension;
the control system includes: the device comprises an energy accumulator, a controller, a left height sensor, a right height sensor, left and right electromagnetic valves A, B, a one-way valve, a hydraulic pump, a motor and an oil tank;
the controller is responsive to the left altitude sensor, the right altitude sensor, and the switch signal and the speed signal; the controller controls the electromagnetic valve A, the electromagnetic valve B and the energy storages with motors distributed on two sides of the frame, and respectively interconnects the oil cylinders on the left sides of the first drive axle and the second drive axle through oil pipes, and interconnects the oil cylinders on the right sides of the first drive axle and the second drive axle through oil pipes;
the left electromagnetic valve A is connected with the left middle oil cylinder and the left rear oil cylinder respectively through oil pipes, and the right electromagnetic valve A is connected with the right middle oil cylinder and the right rear oil cylinder through oil pipes; the output of the electromagnetic valve A is connected with the electromagnetic valve B, the electromagnetic valve B is connected with the one-way valve in parallel to prevent the hydraulic oil from flowing reversely so as to protect the hydraulic pump from safely working, and the motor acts on the hydraulic pump.
Further, the left height sensor and the right height sensor are arranged on two sides of the frame, suspension height change signals are collected in real time, and when the height deviation exceeds a system set value, judgment signals are transmitted to the controller to perform corresponding control actions.
Further, a piston is arranged in the energy accumulator, an oil cavity is formed in one side of the piston, a nitrogen cavity is formed in the other side of the piston, the oil cavity of the energy accumulator is connected with the oil cylinder, a one-way valve and an orifice are arranged in the oil cylinder, and when the oil cylinder performs a compression stroke, the one-way valve of the oil cylinder is opened, and oil flows in through the one-way valve and the orifice to squeeze nitrogen of the energy accumulator; when the oil cylinder is in the extension stroke, the one-way valve is closed, and the oil flows back to the oil cylinder through the orifice to generate the shock absorber effect.
Furthermore, the energy accumulator adopts a two-stage pressure energy accumulator, a high-pressure cavity and a low-pressure cavity are arranged in the energy accumulator, initial inflation pressure and volume of the high-pressure cavity and the low-pressure cavity are respectively set, the low-pressure cavity acts during no-load or half-load, and the high-pressure cavity and the low-pressure cavity act together during full-load, so that natural frequencies of no-load and full-load of the vehicle are approximately equal, and the vehicle obtains better smoothness.
Further, the speed signal and the switching signal are transmitted to the controller through the CAN line so as to input a suspension height adjustment judgment signal.
Further, the suspension height adjustment may accommodate both manual and automatic modes of adjustment.
The beneficial effects are that:
the beneficial effects of the technical scheme are that:
an interconnected hydraulic air suspension for oil field vehicles and a control system thereof are provided, wherein the system consists of a hydraulic air suspension system and a height control system. The hydraulic oil way interconnection system and the height control system which are matched with the hydraulic oil way interconnection system have the characteristics of strong bearing capacity, large ground clearance, quick system response and the like, improve the convenience of loading and unloading cargoes for users, improve the anti-roll and pitching performance, effectively improve the running stability of the vehicle and can be well suitable for the severe and complex transportation working conditions of the oil field oil transportation vehicle.
Drawings
FIG. 1 is an assembly diagram of an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof;
FIG. 2 is a schematic diagram of an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof;
fig. 3 is a three-dimensional structure diagram of an interconnected hydraulic air suspension for an oilfield vehicle.
Reference numerals illustrate:
1. a guide arm bracket; 2. a frame; 3. a first drive axle; 4. a hydraulic cylinder bracket; 5. an oil cylinder; 6. a guide arm; 7. a second drive axle; 8. a transverse thrust rod; 9. a support is pushed horizontally; 10. a clamping plate; 11. a saddle bolt; 12. a limit bracket; 13. an accumulator assembly; 1301. high-pressure energy storage; 1302. low-pressure energy storage; 14. a left height sensor; 15. a right height sensor; 16. a controller; 17. a solenoid valve A; 18. a solenoid valve B; 19. a one-way valve; 20. a motor; 21. a hydraulic pump; 22. and an oil tank.
Detailed Description
The following describes specific embodiments of the present utility model with reference to examples:
it should be noted that the structures, proportions, sizes and the like illustrated in the present specification are used for being understood and read by those skilled in the art in combination with the disclosure of the present utility model, and are not intended to limit the applicable limitations of the present utility model, and any structural modifications, proportional changes or size adjustments should still fall within the scope of the disclosure of the present utility model without affecting the efficacy and achievement of the present utility model.
Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Example 1:
an interconnected hydraulic air suspension for an oilfield vehicle, the hydraulic air suspension comprising: the device comprises a guide arm bracket, a frame, a first drive axle, a hydraulic oil cylinder bracket, a hydraulic oil cylinder, a guide arm, a second drive axle, a clamping plate and a riding bolt;
the upper end of the hydraulic cylinder is fixed with the outer side of the frame through a hydraulic cylinder bracket, and the lower end of the hydraulic cylinder is fixed at one end of the guide arm;
the guide arm support is respectively fixed at the front end and the middle part of the outer side of the frame and used for fixing the other end of the guide arm, and after the clamping plate is arranged on the guide arm, the clamping plate, the first drive axle or the second drive axle are fixed together through the riding bolt.
Further, the upper ends of the two sides of the first drive axle and the second drive axle are provided with limiting blocks, and the limiting blocks are fixedly arranged at the bottom of the frame.
Further, the first drive axle and the second drive axle are both provided with transverse thrust rods, one end of each transverse thrust rod is fixed on the inner side of the frame through a transverse thrust bracket, and the other end of each transverse thrust rod is fixed on the first drive axle; one end of the transverse thrust rod is fixed on the inner side of the frame through a transverse thrust bracket, and the other end of the transverse thrust rod is fixed on the second drive axle.
Further, the guiding arm 6 has a Z-shaped structure and plays a role in guiding and transferring load;
the guide arm support 1 is designed into a butterfly shape, two wings are respectively connected with the side face of the frame 2, the lower part of the tail wing is provided with a mounting point of the guide arm 6, and the guide arm support has the characteristics of high strength, light weight and attractive structure while meeting the bearing requirement.
An interconnected hydraulic air suspension control system for an oilfield vehicle is used for controlling the air suspension;
the control system includes: the device comprises an energy accumulator, a controller, a left height sensor, a right height sensor, left and right electromagnetic valves A, B, a one-way valve, a hydraulic pump, a motor and an oil tank;
the controller is responsive to the left altitude sensor, the right altitude sensor, and the switch signal and the speed signal; the controller controls the electromagnetic valve A, the electromagnetic valve B and the energy storages with motors distributed on two sides of the frame, and respectively interconnects the oil cylinders on the left sides of the first drive axle and the second drive axle through oil pipes, and interconnects the oil cylinders on the right sides of the first drive axle and the second drive axle through oil pipes;
the left electromagnetic valve A is connected with the left middle oil cylinder and the left rear oil cylinder respectively through oil pipes, and the right electromagnetic valve A is connected with the right middle oil cylinder and the right rear oil cylinder through oil pipes; the output of the electromagnetic valve A is connected with the electromagnetic valve B, the electromagnetic valve B is connected with the one-way valve in parallel to prevent the hydraulic oil from flowing reversely so as to protect the hydraulic pump from safely working, and the motor acts on the hydraulic pump.
Further, the left and right height sensors are disposed on two sides of the frame, collect suspension height change signals in real time, and when the height deviation exceeds a system set value, transmit judgment signals to the controller 16 for corresponding control actions.
Further, a piston is arranged in the energy accumulator, an oil cavity is formed in one side of the piston, a nitrogen cavity is formed in the other side of the piston, the oil cavity of the energy accumulator is connected with the oil cylinder, a one-way valve and an orifice are arranged in the oil cylinder, and when the oil cylinder performs a compression stroke, the one-way valve of the oil cylinder is opened, and oil flows in through the one-way valve and the orifice to squeeze nitrogen of the energy accumulator; when the oil cylinder is in the extension stroke, the one-way valve is closed, and the oil flows back to the oil cylinder through the orifice to generate the shock absorber effect.
Furthermore, the energy accumulator adopts a two-stage pressure energy accumulator, a high-pressure cavity and a low-pressure cavity are arranged in the energy accumulator, initial inflation pressure and volume of the high-pressure cavity and the low-pressure cavity are respectively set, the low-pressure cavity acts during no-load or half-load, and the high-pressure cavity and the low-pressure cavity act together during full-load, so that natural frequencies of no-load and full-load of the vehicle are approximately equal, and the vehicle obtains better smoothness.
Further, the speed signal and the switching signal are transmitted to the controller through the CAN line so as to input a suspension height adjustment judgment signal.
Further, the suspension height adjustment may accommodate both manual and automatic modes of adjustment.
Example 2:
with reference to fig. 1 and 3, the hydraulic air suspension system of the present utility model comprises: the hydraulic drive system comprises a guide arm support 1, a frame 2, a first drive axle (middle axle) 3, a hydraulic oil cylinder support 4, an oil cylinder 5, a guide arm 6, a second drive axle (rear axle) 7, a transverse thrust rod 8, a transverse thrust support 9, a clamping plate 10, a riding bolt 11, a limiting block (limiting support) 12 and an energy accumulator 13.
Referring to fig. 2, the suspension height control system of the present utility model comprises: a controller 16, a left height sensor 14, a right height sensor 15, a solenoid valve A17, a solenoid valve B18, a check valve 19, a hydraulic pump 21, a motor 20 and an oil tank 22.
With reference to fig. 1, the guide arm 6 of the hydraulic air suspension system has a Z-shaped structure, so that the suspension system has high ground clearance, can adapt to complex road conditions, and improves the vehicle passing performance.
With reference to fig. 1, in the hydraulic air suspension system, the left side oil cylinders 5 of the first driving axle 3 and the second driving axle 7 are interconnected through a hydraulic oil pipe and a left side energy accumulator 13, and the right side oil cylinders 5 of the first driving axle 3 and the second driving axle 7 are interconnected through the hydraulic oil pipe and the right side energy accumulator 13, so that front and back interconnection of the suspensions of the first driving axle 3 and the second driving axle 7 is realized, and the pitching resistance of a vehicle is improved.
In order to meet the comfort of empty and full load of a vehicle, the hydraulic air suspension system of the utility model adopts a two-stage pressure accumulator 13, wherein a high-pressure cavity 1301 and a low-pressure cavity 1302 are arranged in the accumulator 13, initial inflation pressure and volume of the high-pressure cavity 1301 and the low-pressure cavity 1302 are respectively set, the low-pressure cavity acts during no-load or half-load, and the high-pressure cavity 1301 and the low-pressure cavity 1302 act together during full load, so that natural frequencies of no-load and full-load of the vehicle are approximately equal, and the vehicle obtains better smoothness.
In connection with fig. 1, the hydraulic air suspension system of the present utility model has an "I" shaped thrust rod 8 disposed above each of the first and second drive axles 3 and 7 to enhance the ability of the vehicle to resist lateral forces during cornering.
With reference to fig. 2, the left and right height sensors 14 and 15 of the suspension height control system of the present utility model are disposed on both sides of the vehicle frame, collect suspension height changes in real time, and transmit a driving axle runout signal to the controller 16.
Referring to fig. 2, in the suspension height control system of the present utility model, the speed signal and the switching signal are transmitted to the controller 16 through the CAN line to perform the input of the suspension height adjustment judgment signal.
Referring to fig. 2, a piston is arranged in an accumulator 13 of the suspension height control system of the utility model, one side of the piston is an oil cavity, and the other side of the piston is a nitrogen air cavity, wherein the oil cavity of the accumulator 13 is connected with an oil cylinder 5, a one-way valve and an orifice are arranged in the oil cylinder 5, and when the oil cylinder 5 is in a compression stroke, the one-way valve of the oil cylinder 5 is opened, and oil flows in through the one-way valve and the orifice to squeeze nitrogen of the accumulator 13; when the oil cylinder 5 is in the extension stroke, the one-way valve is closed, and the oil can only flow back to the oil cylinder 5 through the throttle hole to generate the shock absorber effect.
Referring to fig. 2, the suspension height control system of the present utility model is provided with two parallel two-position two-normally-closed solenoid valves a17 connected to the left and right cylinders 5, respectively.
Referring to fig. 2, the output of two parallel two-position normally-closed solenoid valves a17 of the suspension height control system of the present utility model is connected to one two-position normally-open solenoid valve 18.
Referring to fig. 2, the suspension height control system of the present utility model is provided with a motor 20, a hydraulic pump 21 and a tank 22 to provide hydraulic oil input for system operation.
With reference to fig. 2, in the suspension height control system of the present utility model, the controller 16 compares the determined suspension height with the system set height threshold value, and sends control command signals to the solenoid valve a17, the solenoid valve B18 and the motor 20 through the suspension height PID control algorithm, so as to perform oil feeding or oil returning operation on the corresponding oil cylinder 5, so as to implement suspension height adjustment.
The utility model provides an interconnected hydraulic air suspension for an oilfield vehicle and a control system thereof, wherein the suspension has nonlinear rigidity characteristics, and each oil cylinder adopts a hydraulic interconnection mode to realize coordinated control of anti-roll and pitching of the vehicle, so that the smoothness and stability of the vehicle are further improved, and the interconnected hydraulic air suspension can better adapt to oilfield transportation working conditions compared with an air spring suspension. Meanwhile, the utility model also provides a control system of the hydraulic air suspension, which adopts a PID control algorithm to realize suspension height control, and the system supports manual and automatic adjustment modes, thereby providing convenience for users to load and unload cargoes and maintain.
The present utility model is not limited to the embodiments described above, but is capable of modification and variation in all embodiments without departing from the scope of the present utility model, and the present utility model is not limited to the embodiments described above.
Claims (9)
1. An interconnected hydraulic air suspension for an oilfield vehicle, the hydraulic air suspension comprising: the device comprises a guide arm bracket (1), a frame (2), a first drive axle (3), a hydraulic oil cylinder bracket (4), an oil cylinder (5), a guide arm (6), a second drive axle (7), a clamping plate (10) and a riding bolt (11);
the upper end of the oil cylinder (5) is fixed with the outer side of the frame (2) through a hydraulic oil cylinder bracket (4), and the lower end of the oil cylinder (5) is fixed at one end of the guide arm (6);
the guide arm support (1) is respectively fixed at the front end and the middle part of the outer side of the frame (2) and used for fixing the other end of the guide arm (6), and after the clamping plate (10) is arranged on the guide arm (6), the clamping plate (10), the first drive axle (3) or the second drive axle (7) are fixed together through the riding bolt (11).
2. The interconnected hydraulic air suspension for the oilfield vehicle according to claim 1, wherein limiting blocks (12) are arranged at the upper ends of two sides of the first driving axle (3) and the second driving axle (7), and the limiting blocks (12) are fixedly arranged at the bottom of the frame (2).
3. The interconnected hydraulic air suspension for the oilfield vehicle according to claim 1, wherein the first drive axle (3) and the second drive axle (7) are respectively provided with a transverse thrust rod (8), one end of the transverse thrust rod (8) is fixed on the inner side of the frame (2) through a transverse thrust bracket (9), and the other end of the transverse thrust rod (8) is fixed on the first drive axle (3); one end of the transverse thrust rod (8) is fixed on the inner side of the frame (2) through a transverse thrust bracket (9), and the other end of the transverse thrust rod (8) is fixed on the second drive axle (7).
4. The interconnected hydraulic air suspension for the oilfield vehicle according to claim 1, wherein the guide arm (6) is of a Z-shaped structure, the guide arm support (1) is designed into a butterfly shape, two wings are respectively connected with the side face of the frame (2), and the lower part of the tail wing is provided with a mounting point of the guide arm (6).
5. An interconnected hydraulic air suspension control system for an oilfield vehicle, which is characterized in that the control system is used for controlling the air suspension according to any one of claims 1-4;
the control system includes: an energy accumulator (13), a controller (16), a left height sensor (14), a right height sensor (15), left and right electromagnetic valves A (17), B (18), a one-way valve (19), a hydraulic pump (21), a motor (20) and an oil tank (22);
the controller (16) is responsive to the left altitude sensor (14), right altitude sensor (15), and speed and switching signals; the controller (16) controls the electromagnetic valve A (17), the electromagnetic valve B (18) and the motor (20) to be distributed on the energy storages (13) on two sides of the frame (2), the oil cylinders (5) on the left sides of the first driving axle (3) and the second driving axle (7) are respectively connected through oil pipes, and the oil cylinders (5) on the right sides of the first driving axle (3) and the second driving axle (7) are connected through oil pipes;
the electromagnetic valves A (17) on the left side and the right side are connected in parallel through oil pipes, the electromagnetic valve A (17) on the left side is connected with the left middle oil cylinder (5) and the left rear oil cylinder (5) through oil pipes respectively, and the electromagnetic valve A (17) on the right side is connected with the right middle oil cylinder (5) and the right rear oil cylinder (5) through oil pipes; the output of the electromagnetic valve A (17) is connected with the electromagnetic valve B (18), and the electromagnetic valve B (18) is connected with the one-way valve (19) in parallel to protect the hydraulic pump (21) from safely working, wherein the motor (20) drives the hydraulic pump (21).
6. The interconnected hydraulic air suspension control system for oilfield vehicles according to claim 5, wherein the left and right height sensors (14, 15) are disposed on both sides of the vehicle frame, collect the suspension height change in real time, and transmit the drive axle runout signal to the controller (16).
7. The interconnected hydraulic air suspension control system for the oilfield vehicle according to claim 5, wherein a piston is arranged in the accumulator (13), one side of the piston is an oil cavity, the other side of the piston is a nitrogen air cavity, the oil cavity of the accumulator (13) is connected with the oil cylinder (5), a one-way valve and an orifice are arranged in the oil cylinder (5), and when the oil cylinder (5) performs a compression stroke, the one-way valve of the oil cylinder (5) is opened, and oil flows in through the one-way valve and the orifice to squeeze nitrogen of the accumulator (13); when the oil cylinder (5) is in the extension stroke, the one-way valve is closed, and oil flows back to the oil cylinder (5) through the throttle hole.
8. The interconnected hydraulic air suspension control system for the oilfield vehicle according to claim 5, wherein the energy accumulator (13) adopts a two-stage pressure energy accumulator, a high-pressure cavity (1301) and a low-pressure cavity (1302) are arranged in the energy accumulator (13), initial inflation pressure and volume of the high-pressure cavity (1301) and the low-pressure cavity (1302) are respectively set, the low-pressure cavity acts in no-load or half-load, and the high-pressure cavity (1301) and the low-pressure cavity (1302) act together in full-load.
9. The interconnected hydraulic air suspension control system for an oilfield vehicle of claim 5, wherein the speed signal and the switching signal are transmitted to the controller (16) via CAN lines for input of a suspension height adjustment determination signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303225.5U CN220163611U (en) | 2023-05-26 | 2023-05-26 | Interconnected hydraulic air suspension for oil field vehicle and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303225.5U CN220163611U (en) | 2023-05-26 | 2023-05-26 | Interconnected hydraulic air suspension for oil field vehicle and control system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163611U true CN220163611U (en) | 2023-12-12 |
Family
ID=89066405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321303225.5U Active CN220163611U (en) | 2023-05-26 | 2023-05-26 | Interconnected hydraulic air suspension for oil field vehicle and control system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163611U (en) |
-
2023
- 2023-05-26 CN CN202321303225.5U patent/CN220163611U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1056609B1 (en) | Roll-resistant hydraulic suspension system, kit and method for load handling vehicles | |
| AU2011323791B2 (en) | A hydraulic suspension system for lowering the ride height of a vehicle | |
| CN107379910B (en) | Hydro-pneumatic suspension hydraulic system | |
| CN104401198A (en) | Active suspension system for hydraulic type vehicle | |
| CN214295464U (en) | Oil-gas balance suspension system and vehicle | |
| US4872702A (en) | Suspension system for vehicles | |
| CN103879260B (en) | Vehicle suspension system and motor vehicles | |
| CN107116985A (en) | A kind of big stroke suspension system for multi-axle heavy type vehicle | |
| CN206456198U (en) | Five axle dumper hydro pneumatic suspension hydraulic control systems | |
| CN220163611U (en) | Interconnected hydraulic air suspension for oil field vehicle and control system thereof | |
| CN203818971U (en) | Anti-overturning vehicle hydro-pneumatic suspension system and vehicle | |
| RU71298U1 (en) | HYDRO-PNEUMATIC SUSPENSION OF A VEHICLE | |
| CN105346351A (en) | Control device for inhibiting automobile side turning and control method for inhibiting automobile side turning | |
| CN102991296A (en) | Hydro-pneumatic suspension device, hydro-pneumatic suspension frame, underpan and vehicle | |
| CN110077192B (en) | Rigidity-adjustable semi-active hydro-pneumatic suspension system and regulation and control method thereof | |
| CN107053986B (en) | Hydraulic control system for oil-gas suspension of five-axis dumper | |
| CN201304880Y (en) | Separate suspension device with hydro-pneumatic spring for adjusting height of multi-shaft extra heavy duty off-road vehicle | |
| CN203093658U (en) | Novel oil gas suspension system | |
| US3047306A (en) | Articulated self-steering tandem air suspension gear for trailers and the like | |
| CN115092195B (en) | Semi-active anti-roll hydraulic interconnection system and adjusting method thereof | |
| CN202242864U (en) | Air suspension system applied to heavy truck | |
| CN205417077U (en) | Oil gas automotive suspension interconnected systems with multiple functions | |
| CN205440610U (en) | Novel but self -modulation axletree promotes device | |
| CN113427958A (en) | Multi-functional transport vechicle damping device in mine | |
| CN209738729U (en) | Hydraulic suspension device capable of automatically balancing and lifting axle and trailer/semitrailer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |