CN115610504A - Steering hydraulic system and vehicle - Google Patents

Steering hydraulic system and vehicle Download PDF

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Publication number
CN115610504A
CN115610504A CN202211414602.2A CN202211414602A CN115610504A CN 115610504 A CN115610504 A CN 115610504A CN 202211414602 A CN202211414602 A CN 202211414602A CN 115610504 A CN115610504 A CN 115610504A
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CN
China
Prior art keywords
oil
proportional multi
way reversing
port
communicated
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.)
Pending
Application number
CN202211414602.2A
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Chinese (zh)
Inventor
方波
袁盛章
唐康
金恩沛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute
Hubei Sanjiang Space Wanshan Special Vehicle Co Ltd
Original Assignee
Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute
Hubei Sanjiang Space Wanshan Special Vehicle Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute, Hubei Sanjiang Space Wanshan Special Vehicle Co Ltd filed Critical Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute
Priority to CN202211414602.2A priority Critical patent/CN115610504A/en
Publication of CN115610504A publication Critical patent/CN115610504A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

The invention discloses a steering hydraulic system and a vehicle, and belongs to the technical field of vehicles. The steering hydraulic system includes: the hydraulic control system comprises an oil tank, a variable pump, at least four proportional multi-way reversing valves and at least four hydraulic oil cylinders; the oil inlet and the oil drain port of the variable pump are both communicated with the oil tank; oil inlets of the at least four proportional multi-way reversing valves are communicated with oil outlets of the variable pump, and oil return ports of the at least four proportional multi-way reversing valves are communicated with the oil tank; and the first oil port of the proportional multi-way reversing valve is communicated with the rod cavity of the corresponding hydraulic oil cylinder, and the second oil port of the proportional multi-way reversing valve is communicated with the rodless cavity of the corresponding hydraulic oil cylinder. The steering hydraulic system and the vehicle have large steering angle, and can realize various steering modes.

Description

Steering hydraulic system and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a steering hydraulic system and a vehicle.
Background
The tank transport vehicle is used for transporting the special chemical tank between different plant stations. However, in the prior art, the tank transport vehicle adopts a mechanical transmission structure for steering, the steering angle is small, the steering mode is single, the vehicle is difficult to steer when running in a narrow channel, and the steering passing performance of the vehicle is greatly limited.
Disclosure of Invention
The invention provides a steering hydraulic system and a vehicle, which solve or partially solve the technical problems of small steering angle and single steering mode of a tank body transport vehicle in the prior art.
In order to solve the above technical problem, the present invention provides a steering hydraulic system including: the hydraulic control system comprises an oil tank, a variable pump, at least four proportional multi-way reversing valves and at least four hydraulic oil cylinders; the oil inlet and the oil drain port of the variable pump are both communicated with the oil tank; oil inlets of the at least four proportional multi-way reversing valves are communicated with oil outlets of the variable pump, and oil return ports of the at least four proportional multi-way reversing valves are communicated with the oil tank; and the first oil port of the proportional multi-way reversing valve is communicated with the rod cavity of the corresponding hydraulic oil cylinder, and the second oil port of the proportional multi-way reversing valve is communicated with the rodless cavity of the corresponding hydraulic oil cylinder.
Further, the proportional multi-way reversing valve comprises a first electromagnet and a second electromagnet; when the first electromagnet is electrified, a first oil port of the proportional multi-way reversing valve is a pressure oil outlet, and a second oil port of the proportional multi-way reversing valve is a pressure oil inlet; when the second electromagnet is electrified, a second oil port of the proportional multi-way reversing valve is a pressure oil outlet, and a first oil port of the proportional multi-way reversing valve is a pressure oil inlet; when the first electromagnet and the second electromagnet are not powered on, the first oil port of the proportional multi-way reversing valve and the second oil port of the proportional multi-way reversing valve are disconnected with the oil inlet of the proportional multi-way reversing valve, and the first oil port of the proportional multi-way reversing valve and the second oil port of the proportional multi-way reversing valve are disconnected with the oil return port of the proportional multi-way reversing valve.
Further, the variable displacement pump includes: the system comprises a main pump, a displacement regulator and a flow control valve; the main pump is connected with the displacement regulator; the flow control valve is connected with the displacement regulator; and the flow control valve is communicated with the detection port of the proportional multi-way reversing valve.
Further, the variable displacement pump further includes a pressure control valve associated with the displacement regulator.
Furthermore, an oil inlet of the proportional multi-way reversing valve is communicated with an oil outlet of the variable pump through a first oil pipe, and a filter is arranged on the first oil pipe.
Furthermore, an oil return port of the proportional multi-way reversing valve is communicated with the oil tank through a second oil pipe, the first oil pipe is communicated with the second oil pipe through a third oil pipe, and an overflow valve is arranged on the third oil pipe.
Based on the same inventive concept, the application also provides a vehicle which comprises at least four wheel assemblies and the steering hydraulic system, wherein the wheel assemblies are connected with the action ends of the corresponding hydraulic oil cylinders.
Further, at least two of the at least four wheel assemblies have wheel-side drives.
Further, the wheel assembly includes: the device comprises a frame, a first connecting rod, a second connecting rod, an axle and wheels; the first end of the first connecting rod is hinged with the frame, and the second end of the first connecting rod is hinged with the action end of the hydraulic oil cylinder; the first end of the second connecting rod is hinged with the second end of the first connecting rod, and the second end of the second connecting rod is hinged with the axle; the wheels are arranged on the axle.
Further, the wheel assembly also comprises an angle sensor arranged on the axle.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the oil inlets and the oil discharge ports of the variable pump are communicated with an oil tank, the oil inlets of at least four proportional multi-way reversing valves are communicated with the oil outlets of the variable pump, the oil return ports of at least four proportional multi-way reversing valves are communicated with the oil tank, the first oil ports of the proportional multi-way reversing valves are communicated with rod cavities of corresponding hydraulic oil cylinders, and the second oil ports of the proportional multi-way reversing valves are communicated with rodless cavities of corresponding hydraulic oil cylinders.
Drawings
FIG. 1 is a schematic diagram of a steering hydraulic system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a proportional multi-way reversing valve of the steering hydraulic system of FIG. 1;
FIG. 3 is a schematic diagram of a variable displacement pump of the steering hydraulic system of FIG. 1;
fig. 4 is a schematic structural diagram of a wheel assembly of a vehicle according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, a steering hydraulic system according to an embodiment of the present invention includes: the hydraulic control system comprises an oil tank 1, a variable pump 2, at least four proportional multi-way reversing valves 3 and at least four hydraulic oil cylinders 4.
The oil inlet S and the oil drain L1 of the variable pump 2 are both communicated with the oil tank 1.
Oil inlets P of the at least four proportional multi-way reversing valves 3 are communicated with oil outlets B of the variable pump 2, and oil return ports T of the at least four proportional multi-way reversing valves 3 are communicated with the oil tank 1.
The first oil port C1 of the proportional multi-way reversing valve 3 is communicated with the rod cavity of the corresponding hydraulic oil cylinder 4, and the second oil port A1 of the proportional multi-way reversing valve 3 is communicated with the rodless cavity A of the corresponding hydraulic oil cylinder 4.
A rod cavity of the hydraulic oil cylinder 4 is provided with a third oil port C to be communicated with the first oil port C1 of the proportional multi-way reversing valve 3. A rod-free cavity of the hydraulic oil cylinder 4 is provided with a fourth oil port A which is communicated with a second oil port A1 of the proportional multi-way reversing valve 3.
When the variable pump 2 does not work, the pressure oil in the variable pump 2 is discharged into the oil tank 1 through the oil discharge port L1 of the variable pump 2, and the safety of the variable pump 2 is guaranteed.
According to the specific embodiment of the application, because the oil inlet S and the oil drain port L1 of the variable pump 2 are communicated with the oil tank 1, the oil inlets P of at least four proportional multi-way directional valves 3 are communicated with the oil outlet B of the variable pump 2, the oil return ports T of at least four proportional multi-way directional valves 3 are communicated with the oil tank 1, the first oil ports C1 of the proportional multi-way directional valves 3 are communicated with the rod cavities of the corresponding hydraulic oil cylinders 4, and the second oil ports A1 of the proportional multi-way directional valves 3 are communicated with the rodless cavities of the corresponding hydraulic oil cylinders 4, when the tank truck needs to steer, the variable pump 2 extracts pressure oil in the oil tank 1, the pressure oil is conveyed into the proportional multi-way directional valves 3, the rodless cavities or the oil supply of the hydraulic oil cylinders 4 is carried out through the second oil ports A1 of the proportional multi-way directional valves 3, the first oil ports of the proportional multi-way directional valves 3 supply oil to the rod cavities or the oil supply to the hydraulic oil cylinders 4, the wheel assemblies 5 are driven to rotate by the hydraulic oil cylinders 4, the independent steering wheel assemblies 5, and the wheels can be transported in different steering angles, and the different steering wheel assemblies 95 can be transported in different steering modes.
In some embodiments, because each proportional multi-way reversing valve 3 controls the action of each hydraulic ram 4, such that each hydraulic ram 4 controls the action of each wheel assembly 5, multi-mode steering functionality for four-axle, six-axle, eight-axle, etc. vehicles may be achieved.
In some embodiments, when the piston rod of the hydraulic cylinder 4 needs to extend, the variable displacement pump 2 supplies pressure oil to the rodless cavity of the hydraulic cylinder 4 through the second oil port A1 of the proportional multi-way directional valve 3 and the fourth oil port a formed in the hydraulic cylinder 4, so that the second oil port A1 of the proportional multi-way directional valve 3 becomes a pressure oil outlet, the first oil port C1 of the proportional multi-way directional valve 3 becomes a pressure oil inlet, and at this time, the pressure oil in the rod cavity of the hydraulic cylinder 4 enters the oil tank 1 through the third oil port C of the hydraulic cylinder 4, the first oil port C1 of the proportional multi-way directional valve 3 and the oil return port T of the proportional multi-way directional valve 3, so as to drive the piston rod of the hydraulic cylinder 4 to extend. When the piston rod of the hydraulic oil cylinder 4 needs to retract, the variable displacement pump 2 supplies pressure oil to a rod cavity of the hydraulic oil cylinder 4 through the first oil port C1 of the proportional multi-way directional control valve 3 and the third oil port C arranged on the hydraulic oil cylinder 4, so that the first oil port C1 of the proportional multi-way directional control valve 3 becomes a pressure oil outlet, the second oil port A1 of the proportional multi-way directional control valve 3 becomes a pressure oil inlet, and at the moment, the pressure oil in the rodless cavity of the hydraulic oil cylinder 4 enters the oil tank 1 through the fourth oil port a on the hydraulic oil cylinder 4, the second oil port A1 of the proportional multi-way directional control valve 3 and the oil return port T of the proportional multi-way directional control valve 3, so as to drive the piston rod of the hydraulic oil cylinder 4 to retract.
Referring to fig. 3, in some embodiments, proportional multi-way reversing valve 3 includes a first solenoid Y1A and a second solenoid Y1B.
When the first electromagnet Y1A is energized, the first oil port C1 of the proportional multi-way directional valve 3 is a pressure oil outlet, and the second oil port A1 of the proportional multi-way directional valve 3 is a pressure oil inlet, so as to achieve extension of the piston rod of the hydraulic oil cylinder 4.
When the second electromagnet Y1B is energized, the second oil port A1 of the proportional multi-way directional valve 3 is a pressure oil outlet, and the first oil port C1 of the proportional multi-way directional valve 3 is a pressure oil inlet, so as to realize retraction of the piston rod of the hydraulic oil cylinder 4.
When the first electromagnet Y1A and the second electromagnet Y1B are not powered, the first oil port C1 of the proportional multi-way directional valve 3 and the second oil port A1 of the proportional multi-way directional valve 3 are disconnected from the oil inlet P of the proportional multi-way directional valve 3, and the first oil port C1 of the proportional multi-way directional valve 3 and the second oil port A1 of the proportional multi-way directional valve 3 are disconnected from the oil return port T of the proportional multi-way directional valve 3, so that the wheel assembly 5 maintains a state after steering is completed.
Referring to fig. 2, in some embodiments, the variable displacement pump 2 comprises: a main pump 2-1, a displacement regulator 2-2 and a flow control valve 2-3.
The main pump 2-1 is connected with the displacement regulator 2-2, the main pump 2-1 is driven by an engine or a motor, oil is sucked from the oil tank 1 through an oil inlet S of the variable pump 2, and then high-pressure hydraulic oil enters the proportional multi-way reversing valve 3 from an oil outlet B of the variable pump 2 and an oil inlet P of the proportional multi-way reversing valve 3.
The flow control valve 2-3 is connected with the displacement regulator 2-2.
The flow control valve 2-3 is communicated with a detection port Ls of the proportional multi-way reversing valve 3.
In this embodiment, a pressure sensing port X is formed in the variable displacement pump 2, the flow control valve 2-3 is communicated with a detection port Ls of the proportional multi-way directional valve 3 through an X port, when the first electromagnet Y1A is powered, the detection port Ls of the proportional multi-way directional valve 3 is communicated with a second oil port A1 of the proportional multi-way directional valve 3, when the second electromagnet Y1B is powered, the detection port Ls of the proportional multi-way directional valve 3 is communicated with a first oil port C1 of the proportional multi-way directional valve 3, that is, the detection port Ls of the proportional multi-way directional valve 3 is communicated with a pressure oil inlet, at this time, the pressure of the detection port Ls of the proportional multi-way directional valve 3 is equal to the pressure required by the hydraulic cylinder 4 for operation, and the flow control valve senses the pressure at the detection port Ls of the proportional multi-way directional valve 3 through the pressure sensing port X, and then controls the displacement regulator 2-2 to regulate the main pump 2-1, so that the output flow of the flow control valve 2-1 is always equal to the flow required by the proportional multi-way directional valve 3.
In the present embodiment, when both the first electromagnet Y1A and the second electromagnet Y1B are not energized, the detection port Ls of the proportional multi-way directional control valve 3 is disconnected from the second port A1 of the proportional multi-way directional control valve 3, and the detection port Ls of the proportional multi-way directional control valve 3 is disconnected from the first port C1 of the proportional multi-way directional control valve 3.
In the embodiment, the variable displacement pump 2 further comprises a pressure control valve 2-4 connected with the displacement regulator 2-2, the maximum working pressure of the main pump 2-1 is limited through the pressure control valve 2-4, and when the working pressure of the main pump 2-1 reaches a limit value, the pressure control valve 2-4 can rapidly control the displacement regulator 2-2 to reduce the displacement of the main pump 2-1 until the displacement approaches to 0', so that the safety of the variable displacement pump 2 is ensured.
In some embodiments, the oil inlet P of the proportional multi-way reversing valve 3 is communicated with the oil outlet B of the variable displacement pump 2 through a first oil pipe 6, and a filter 7 is disposed on the first oil pipe 6 to filter the pressure oil entering the proportional multi-way reversing valve 3, so as to ensure the safety of the proportional multi-way reversing valve 3.
In this embodiment, an oil return port T of the proportional multi-way directional valve 3 is communicated with the oil tank 1 through a second oil pipe 8, the first oil pipe 6 is communicated with the second oil pipe 8 through a third oil pipe 9, an overflow valve 10 is arranged on the third oil pipe 9, when the first oil pipe 6 supplies oil to the proportional multi-way directional valve 3 too much, pressure oil in the first oil pipe 6 enters the second oil pipe 8 through the third oil pipe 9, and then is returned to the oil tank 1 through the second oil pipe 8, so that safety is guaranteed.
Based on the same inventive concept, the present application further provides a vehicle, where the vehicle employs a steering hydraulic system, and the specific structure of the steering hydraulic system refers to the above embodiments, and since all technical solutions of all the above embodiments are employed, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In some embodiments, the vehicle includes at least four wheel assemblies 5, the wheel assemblies 5 are connected with the action ends of the corresponding hydraulic cylinders 4, so that the wheel assemblies 5 are driven by the hydraulic cylinders 4 to rotate, the steering of the wheel assemblies 5 is realized, each wheel assembly 5 can independently steer to +/-95 degrees, the steering angle is large, the steering angle of each wheel assembly 5 can be different, and through the combination of the steering angles of different axles, multiple steering modes can be realized, so that the tank transport vehicle can steer in narrow passages.
In some embodiments, at least two wheel assemblies 5 of the at least four wheel assemblies 5 have wheel-side drives by which the vehicle is driven to travel. In this embodiment, the wheel-side driver may be a wheel-side motor.
Referring to fig. 4, in some embodiments, wheel assembly 5 includes: the vehicle comprises a frame 5-1, a first connecting rod 5-2, a second connecting rod 5-3, an axle 5-4 and wheels 5-5.
The first end of the first connecting rod 5-2 is hinged with the frame 5-1, and the second end of the first connecting rod 5-2 is hinged with the action end of the hydraulic oil cylinder 4. In the present embodiment, the second end of the first link 5-2 is hinged to the piston rod of the hydraulic ram 4.
The first end of the second connecting rod 5-3 is hinged with the second end of the first connecting rod 5-2, and the second end of the second connecting rod 5-3 is hinged with the axle 5-4.
Wheels 5-5 are provided on the axle 5-4.
In this embodiment, when the piston rod of the hydraulic cylinder 4 extends, the first link 5-2 is pushed to act, the first link 5-2 drives the axle 5-4 to rotate through the second link 5-3, so that the axle 5-4 rotates clockwise, and then the axle 5-4 drives the wheels 5-5 to rotate clockwise, thereby achieving steering of the vehicle. When a piston rod of the hydraulic oil cylinder 4 retracts, the first connecting rod 5-2 is pulled to act, the first connecting rod 5-2 drives the axle 5-4 to rotate through the second connecting rod 5-3, so that the axle 5-4 rotates anticlockwise, and then the axle 5-4 drives the wheels 5-5 to rotate anticlockwise, and the steering of the vehicle is realized.
In this embodiment, the wheel 5-5 assembly 5 further includes an angle sensor 5-6 disposed on the axle 5-4, the angle sensor 5-6 senses a rotation angle of the axle 5-4, the angle sensor 5-6 sends an angle signal of the rotation of the axle 5-4 to the controller, the controller is connected to the variable pump 2, and sends a control signal to the variable pump 2 according to the angle signal, so as to control an oil supply amount of the variable pump 2 to supply the pressure oil to the proportional multi-way directional valve 3, and achieve accurate control of a steering angle of the axle 5-4.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A steering hydraulic system, comprising: the hydraulic control system comprises an oil tank, a variable pump, at least four proportional multi-way reversing valves and at least four hydraulic oil cylinders;
the oil inlet and the oil drain port of the variable pump are both communicated with the oil tank;
oil inlets of the at least four proportional multi-way reversing valves are communicated with oil outlets of the variable pump, and oil return ports of the at least four proportional multi-way reversing valves are communicated with the oil tank;
and the first oil port of the proportional multi-way reversing valve is communicated with the rod cavity of the corresponding hydraulic oil cylinder, and the second oil port of the proportional multi-way reversing valve is communicated with the rodless cavity of the corresponding hydraulic oil cylinder.
2. The steering hydraulic system of claim 1, wherein the proportional multi-way reversing valve includes a first solenoid and a second solenoid;
when the first electromagnet is electrified, a first oil port of the proportional multi-way reversing valve is a pressure oil outlet, and a second oil port of the proportional multi-way reversing valve is a pressure oil inlet;
when the second electromagnet is electrified, a second oil port of the proportional multi-way reversing valve is a pressure oil outlet, and a first oil port of the proportional multi-way reversing valve is a pressure oil inlet;
when the first electromagnet and the second electromagnet are not electrified, the first oil port of the proportional multi-way reversing valve and the second oil port of the proportional multi-way reversing valve are disconnected with the oil inlet of the proportional multi-way reversing valve, and the first oil port of the proportional multi-way reversing valve and the second oil port of the proportional multi-way reversing valve are disconnected with the oil return port of the proportional multi-way reversing valve.
3. The steering hydraulic system of claim 1, wherein the variable displacement pump comprises: the system comprises a main pump, a displacement regulator and a flow control valve;
the main pump is connected with the displacement regulator;
the flow control valve is connected with the displacement regulator;
and the flow control valve is communicated with a detection port of the proportional multi-way reversing valve.
4. The steering hydraulic system of claim 3, wherein the variable displacement pump further comprises a pressure control valve in communication with the displacement regulator.
5. The steering hydraulic system according to claim 1, characterized in that an oil inlet of the proportional multi-way reversing valve is communicated with an oil outlet of the variable pump through a first oil pipe, and a filter is arranged on the first oil pipe.
6. The steering hydraulic system according to claim 5, wherein an oil return port of the proportional multi-way reversing valve is communicated with the oil tank through a second oil pipe, the first oil pipe is communicated with the second oil pipe through a third oil pipe, and an overflow valve is arranged on the third oil pipe.
7. A vehicle comprising at least four wheel assemblies and a steering hydraulic system as claimed in any one of claims 1 to 6, the wheel assemblies being connected to the actuation ends of the respective hydraulic rams.
8. The vehicle of claim 7, characterized in that at least two of the at least four wheel assemblies have wheel-side drives.
9. The vehicle of claim 7, wherein the wheel assembly comprises: the device comprises a frame, a first connecting rod, a second connecting rod, an axle and wheels;
the first end of the first connecting rod is hinged with the frame, and the second end of the first connecting rod is hinged with the action end of the hydraulic oil cylinder;
the first end of the second connecting rod is hinged with the second end of the first connecting rod, and the second end of the second connecting rod is hinged with the axle;
the wheels are arranged on the axle.
10. The vehicle of claim 9, wherein the wheel assembly further comprises an angle sensor disposed on the axle.
CN202211414602.2A 2022-11-11 2022-11-11 Steering hydraulic system and vehicle Pending CN115610504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211414602.2A CN115610504A (en) 2022-11-11 2022-11-11 Steering hydraulic system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211414602.2A CN115610504A (en) 2022-11-11 2022-11-11 Steering hydraulic system and vehicle

Publications (1)

Publication Number Publication Date
CN115610504A true CN115610504A (en) 2023-01-17

Family

ID=84878032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211414602.2A Pending CN115610504A (en) 2022-11-11 2022-11-11 Steering hydraulic system and vehicle

Country Status (1)

Country Link
CN (1) CN115610504A (en)

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