CN116461599A - Steering wheel steering system based on hydraulic control principle and steering method thereof - Google Patents
Steering wheel steering system based on hydraulic control principle and steering method thereof Download PDFInfo
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- CN116461599A CN116461599A CN202310387538.1A CN202310387538A CN116461599A CN 116461599 A CN116461599 A CN 116461599A CN 202310387538 A CN202310387538 A CN 202310387538A CN 116461599 A CN116461599 A CN 116461599A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 137
- 238000004891 communication Methods 0.000 claims description 10
- 238000011065 in-situ storage Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 17
- 230000000875 corresponding effect Effects 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000009975 flexible effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0475—Controlling other elements
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- 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
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention discloses a steering wheel steering system based on a hydraulic control principle and a steering method thereof, the steering wheel steering system based on the hydraulic control principle comprises a steering wheel, a circuit control module, a hydraulic driving module and an execution module, wherein the steering wheel is arranged in a cab of a crawler-type armored vehicle, the circuit control module is used for controlling the working state of an oil cylinder, the hydraulic driving module is used for providing hydraulic power for the steering system, the execution module is used for controlling the working state of a planetary steering machine in the crawler-type armored vehicle, the circuit control module is correspondingly arranged with the steering wheel, the hydraulic driving module is correspondingly arranged at the lower part of the crawler-type armored vehicle, and the execution module is correspondingly arranged at the installation position of the planetary steering machine.
Description
Technical Field
The invention relates to the technical field of steering systems, in particular to a steering wheel steering system based on a hydraulic control principle and a steering method thereof.
Background
In the prior art, tracked vehicle steering systems have generally undergone stages of steering clutch-brake, mechanical dual power flow steering systems, and hydromechanical dual power flow differential steering systems. The clutch-brake is realized by the friction between friction elements, so that accurate and stable steering radius is difficult to obtain, and the disadvantages of low transmission efficiency, poor working reliability, low service life, limited number of steering radii and the like exist. The mechanical double-power flow steering system has greatly improved steering performance compared with a single-power flow steering mechanism. However, its turning radius is still stepped; the steering mechanism has a scattered and complex overall structure and a relatively large mass; nor does it exclude a series of problems associated with the skid steering by means of a portion of the friction element.
The existing crawler-type armored vehicles are controlled to steer by a planetary steering machine and are controlled by a pull rod mechanically, no matter steering or other operations are limited in the driving process, but the steering braking operation of most crawler-type vehicles still adopts mechanical operation, the space occupied by an operating mechanism is large, the structural layout is loose, the operating parts are more, the maintenance and the rush repair are difficult, the combined operation of two hands is needed, the man-machine relationship is not coordinated, the operating force is large, the operation stroke is long, the driver is easy to fatigue, the electric signal cannot be applied, the electric signal cannot be controlled in other modes, the hydraulic technology tends to be stable in modern industry, the control is more flexible and diversified, and the steering wheel is proved to be a more convenient control mode in the continuous development.
The application number is: 202010843240.3 discloses a double-power-flow tracked vehicle driving and steering system, which comprises a control system, a power system, a linear driving system, a steering driving system and a gear pair system; the power system provides power for the linear driving system and the steering driving system, the control system controls the linear driving system to further control the gear pair system to realize the linear driving of the vehicle, and the control system controls the steering driving system to further control the gear pair system to realize the steering driving of the vehicle; the linear driving system comprises a first hydraulic transformer, a check valve group I and a bidirectional quantitative pump/motor, and the steering driving system comprises a second hydraulic transformer, a check valve group II and a bidirectional quantitative motor. However, the dual-power-flow tracked vehicle driving and steering system is complex in structure, more in component parts, higher in requirement on installation space, difficult to maintain and repair, more expensive in component parts, higher in use cost, more complicated in steering control process, unfavorable for operation by operators, and larger in energy required by the steering system in the steering operation process.
Disclosure of Invention
The invention aims to provide a steering wheel steering system and a steering method thereof based on a hydraulic control principle.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the steering wheel steering system based on the hydraulic control principle comprises a steering wheel, wherein the steering wheel is arranged in a cab of a crawler-type armored vehicle, and further comprises a circuit control module used for controlling the working state of an oil cylinder, a hydraulic driving module used for providing hydraulic power for the steering system and an execution module used for controlling the working state of a planetary steering gear in the crawler-type armored vehicle, the circuit control module is correspondingly arranged with the steering wheel, the hydraulic driving module is correspondingly arranged at the lower part of the crawler-type armored vehicle, and the execution module is correspondingly arranged at the installation part of the planetary steering gear.
The circuit control module comprises a direction switch assembly, an electromagnetic valve assembly and an oil cylinder switch assembly, wherein the direction switch assembly is correspondingly arranged with the steering wheel, the electromagnetic valve assembly is electrically connected with the direction switch assembly, and the oil cylinder switch assembly is electrically connected with the electromagnetic valve assembly.
The direction switch assembly comprises a first direction travel switch and a second direction travel switch, the first direction travel switch and the second direction travel switch are symmetrically arranged on two sides of the steering wheel, the steering wheel is connected with the first direction travel switch and the second direction travel switch through mounting base blocks, and the first direction travel switch and the second direction travel switch are in a normally open state.
The electromagnetic valve assembly comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, wherein the first electromagnetic valve is electrically connected with the second travel switch in the direction, the second electromagnetic valve is arranged in parallel with the first electromagnetic valve, and the third electromagnetic valve is arranged in parallel with the second electromagnetic valve and is electrically connected with the first travel switch in the direction.
The first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are two-position three-way electromagnetic valves and are in a normally closed state, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are integrated at parallel intervals to form a plug-in type two-position three-way electromagnetic valve assembly.
The oil cylinder switch assembly comprises an oil cylinder first travel switch and an oil cylinder second travel switch, wherein the oil cylinder first travel switch and the oil cylinder second travel switch are electrically connected with the second electromagnetic valve, the first travel switch is in a normally open state, and the second travel switch is in a normally closed state.
The hydraulic driving module comprises a driving hydraulic cylinder, a hydraulic pump, a one-way throttle valve and an oil return filter, wherein the driving hydraulic cylinder is arranged at the lower part of the crawler-type armored car, the hydraulic pump is communicated with an oil way of the driving hydraulic cylinder, the one-way throttle valve is communicated with the hydraulic pump and an oil way of a third electromagnetic valve, the third electromagnetic valve is communicated with the second electromagnetic valve and an oil way of a first electromagnetic valve, the oil return filter is communicated with the driving hydraulic cylinder, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are communicated with the oil way of the driving hydraulic cylinder through the oil return filter to form a complete hydraulic oil way.
The execution module comprises a first oil cylinder, a second oil cylinder, a third oil cylinder and an execution assembly, wherein the first oil cylinder is correspondingly arranged with the first travel switch of the oil cylinder and is connected with the first electromagnetic valve, the second oil cylinder is correspondingly arranged with the second electromagnetic valve and is connected with the second electromagnetic valve, the third oil cylinder is correspondingly arranged with the second travel switch of the oil cylinder and is connected with the third electromagnetic valve, and the execution assembly is correspondingly arranged with the first oil cylinder, the second oil cylinder and the third oil cylinder and is connected with the planetary steering gear.
The execution assembly comprises a first braking belt, a second braking belt and a locking clutch, wherein the first braking belt is correspondingly arranged with the output end of the first oil cylinder and is connected with the planetary steering machine, the second braking belt is correspondingly arranged with the output end of the second oil cylinder and is connected with the planetary steering machine, and the locking clutch is correspondingly arranged with the third oil cylinder and is connected with the planetary steering machine.
A steering method of a steering wheel steering system based on a hydraulic control principle, comprising the steps of:
a. travel steering: when the crawler type armored vehicle needs to turn in the running process, a steering wheel is rotated, a first travel switch in the touch direction is closed, a third electromagnetic valve is electrified, the output end of a corresponding third oil cylinder stretches out to push a locking clutch to separate, and when the output end of the third oil cylinder stretches to a travel end point, a second travel switch of the oil cylinder is triggered, so that the output end of the second oil cylinder stretches out to enable a second braking belt to hug tightly, and differential running of the crawler on two sides is completed to enable the crawler type armored vehicle to turn in the running process;
b. in-situ steering: on the basis of traveling steering, the steering wheel is rotated, the first travel switch in the touch direction is closed, the first electromagnetic valve is electrified, the output end of the first oil cylinder extends out, the extending part of the first oil cylinder triggers the first travel switch of the oil cylinder, the first travel switch passage of the oil cylinder enables the second electromagnetic valve to be powered off and return, the output end of the first oil cylinder continues to extend to complete the passage while the second oil cylinder returns, and the first braking belt is locked for in-situ steering.
c. And (3) braking: on the basis of in-situ steering, the first braking belt is kept in a locking state, so that the crawler-type armored vehicle can be braked.
The beneficial effects of the invention are as follows:
the hydraulic steering device is simple in structure, is provided with a circuit control module, performs corresponding actions through inputting different electric signals to control the hydraulic driving module and the executing module to complete basic steering and other related actions, achieves steering control through the integrated electromagnetic valve group, is accurate and rapid in action, is reliable in control, meets the operation requirements of a driver on steering and braking through response speed and control precision, is provided with the hydraulic driving module, can perform servo control, meets the requirement of adjusting braking force during steering and braking, can control the operating force and the operating stroke in a proper and convenient range of the application of force of the operating personnel, is provided with the executing module, achieves operation of the planetary steering machine through the hydraulic cylinder, can adapt to severe vibration and impact on a tracked vehicle, is simple and convenient to integrally disassemble and assemble, saves space, has fewer parts and is convenient for vehicle arrangement.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an electrical schematic of the present invention;
fig. 3 is a diagram of the working oil path of the hydraulic drive module of the present invention.
In the figure: 1. a steering wheel; 2. a directional first travel switch; 3. a directional second travel switch; 4. a first electromagnetic valve; 5. a second electromagnetic valve; 6. a third electromagnetic valve; 7. a first stroke switch of the oil cylinder; 8. the second travel switch of the oil cylinder; 9. driving a hydraulic cylinder; 10. a hydraulic pump; 11. a one-way throttle valve; 12. an oil return filter; 13. a first cylinder; 14. a second cylinder; 15. a third cylinder; 16. a first braking band; 17. a second braking band; 18. a lockup clutch; p, an oil inlet; t, an oil return port; A. and an air outlet.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings,
the invention discloses a steering wheel steering system based on a hydraulic control principle, which comprises a steering wheel 1, wherein the steering wheel 1 is arranged in a cab of a crawler-type armored vehicle, and further comprises a circuit control module for controlling the working state of an oil cylinder, a hydraulic driving module for providing hydraulic power for the steering system and an execution module for controlling the working state of a planetary steering gear in the crawler-type armored vehicle, wherein the circuit control module is correspondingly arranged with the steering wheel 1, the hydraulic driving module is correspondingly arranged at the lower part of the crawler-type armored vehicle, and the execution module is correspondingly arranged at the installation position of the planetary steering gear.
The circuit control module comprises a direction switch assembly, an electromagnetic valve assembly and an oil cylinder switch assembly, wherein the direction switch assembly is correspondingly arranged with the steering wheel 1, the electromagnetic valve assembly is electrically connected with the direction switch assembly, the oil cylinder switch assembly is electrically connected with the electromagnetic valve assembly, the circuit control module is matched with the electromagnetic valve assembly through the direction switch assembly, the electromagnetic valve assembly and the oil cylinder switch assembly to form a circuit control part of the steering system, the direction switch assembly is used for being closed to form a circuit path when the steering wheel 1 rotates so as to enable corresponding electric elements to work, the electromagnetic valve assembly is used for controlling the oil cylinder to perform corresponding actions, the oil cylinder switch assembly is used for being switched under the action of the corresponding oil cylinder to realize the on-off of a corresponding loop, and the electric schematic diagram of the circuit control module is shown in figure 2.
The steering wheel 1 is connected with the steering wheel 2 and the steering wheel 3 through the mounting base blocks, the steering wheel 2 and the steering wheel 3 are in a normally open state, the steering wheel 2 and the steering wheel 3 are matched with each other through the steering wheel 2 and the steering wheel 3 to serve as a trigger switch of the steering wheel 1 to be opened or closed according to the rotating direction and the rotating angle of the steering wheel 1, the steering wheel 2 is used for controlling the on-off of the third electromagnetic valve 6, the steering wheel 3 is used for controlling the on-off of the first electromagnetic valve 4, and the steering wheel 2 and the steering wheel 3 are in a touch closing state when the steering wheel 1 rotates.
The solenoid valve subassembly includes first solenoid valve 4, second solenoid valve 5 and third solenoid valve 6, first solenoid valve 4 and direction second travel switch 3 electric connection, second solenoid valve 5 sets up side by side with first solenoid valve 4, third solenoid valve 6 sets up side by side with second solenoid valve 5 and with direction first travel switch 2 electric connection, solenoid valve subassembly is through first solenoid valve 4, second solenoid valve 5 and the cooperation of third solenoid valve 6, carry out corresponding action with the control corresponding hydro-cylinder under direction switch subassembly's effect and carry out flexible action, wherein, first solenoid valve 4 is used for controlling first hydro-cylinder 13. The second solenoid valve 5 is used for controlling the second cylinder 14, and the third solenoid valve 6 is used for controlling the third cylinder 15.
The first electromagnetic valve 4, the second electromagnetic valve 5 and the third electromagnetic valve 6 are two-position three-way electromagnetic valves and are in a normally closed state, and the first electromagnetic valve 4, the second electromagnetic valve 5 and the third electromagnetic valve 6 are arranged in parallel and at intervals in an integrated manner to form a plug-in type two-position three-way electromagnetic valve assembly, wherein the plug-in type two-position three-way electromagnetic valve assembly is convenient to install and is convenient for a worker to overhaul and maintain.
The oil cylinder switch assembly comprises an oil cylinder first travel switch 7 and an oil cylinder second travel switch 8, the oil cylinder first travel switch 7 and the oil cylinder second travel switch 8 are electrically connected with the second electromagnetic valve 5, the first travel switch is in a normally open state, the second travel switch is in a normally closed state, the oil cylinder switch assembly is matched with the oil cylinder first travel switch 7 and the oil cylinder second travel switch 8 to control the on-off of a loop where a corresponding oil cylinder is located, wherein the first travel switch and the second travel switch are used for controlling the on-off of a loop where a second oil cylinder 14 is located, when the output end of the first oil cylinder 13 stretches out, the first travel switch is closed, and when the output end of the third oil cylinder 15 stretches out, the second travel switch is closed.
The hydraulic driving module comprises a driving hydraulic cylinder 9, a hydraulic pump 10 and a one-way throttle valve 11, wherein the driving hydraulic cylinder 9 is arranged at the lower part of the crawler type armored vehicle, the hydraulic pump 10 is in oil way communication with the driving hydraulic cylinder 9, the one-way throttle valve 11 is in oil way communication with the hydraulic pump 10 and a third electromagnetic valve 6, the third electromagnetic valve 6 is in oil way communication with the second electromagnetic valve 5 and the first electromagnetic valve 4, the hydraulic driving module is matched with the driving hydraulic cylinder 9, the hydraulic pump 10 and the one-way throttle valve 11 to serve as a hydraulic driving part of a steering system, the driving hydraulic cylinder 9 is used as hydraulic driving equipment in the steering system, the hydraulic pump 10 is used for guiding hydraulic oil into an electromagnetic valve assembly under the action of the driving hydraulic cylinder 9, and the one-way throttle valve 11 is used for guiding the hydraulic oil into the electromagnetic valve assembly under the action of the hydraulic pump 10.
The hydraulic oil return device further comprises an oil return filter 12, the oil return filter 12 is in oil way communication with the driving hydraulic cylinder 9, the first electromagnetic valve 4, the second electromagnetic valve 5 and the third electromagnetic valve 6, and the first electromagnetic valve 4, the second electromagnetic valve 5 and the third electromagnetic valve 6 are all in oil way communication with the driving hydraulic cylinder 9 through the oil return filter 12 to form a complete hydraulic oil way, wherein the oil return filter 12 is used for filtering hydraulic oil in an oil return oil way of an electromagnetic valve assembly.
The execution module comprises a first oil cylinder 13, a second oil cylinder 14, a third oil cylinder 15 and an execution component, wherein the first oil cylinder 13 is correspondingly arranged with the first travel switch 7 of the oil cylinder and is connected with the first electromagnetic valve 4, the second oil cylinder 14 is correspondingly arranged with the second electromagnetic valve 5 and is connected with the second electromagnetic valve 5, the third oil cylinder 15 is correspondingly arranged with the second travel switch 8 of the oil cylinder and is connected with the third electromagnetic valve 6, the execution component is correspondingly arranged with the first oil cylinder 13, the second oil cylinder 14 and the third oil cylinder 15 and is connected with the planetary steering machine, the execution module is matched with the first oil cylinder 13, the second oil cylinder 14, the third oil cylinder 15 and the execution component, the operation state of the planetary steering machine is controlled under the action of the circuit control module and the hydraulic driving module, the first oil cylinder 13 is used for extending under the action of the first electromagnetic valve 4, the second oil cylinder 14 is used for extending under the action of the second electromagnetic valve 5, the third oil cylinder 15 is used for extending under the action of the third electromagnetic valve 6, the operation state of the planetary steering machine is controlled through the telescopic state of the output end of the oil cylinder, and the execution component is used for controlling the operation state of the planetary steering machine under the action of the first oil cylinder 13, the second oil cylinder 14 and the third oil cylinder 15.
The execution assembly comprises a first braking belt 16, a second braking belt 17 and a locking clutch 18, wherein the first braking belt 16 is correspondingly arranged at the output end of the first oil cylinder 13 and is connected with the planetary steering machine, the second braking belt 17 is correspondingly arranged at the output end of the second oil cylinder 14 and is connected with the planetary steering machine, the locking clutch 18 is correspondingly arranged at the third oil cylinder 15 and is connected with the planetary steering machine, the execution assembly is matched with the first braking belt 16, the second braking belt 17 and the locking clutch 18 through the first braking belt 16, the second braking belt 17 and the locking clutch 18, and corresponding actions are carried out under the action of the first oil cylinder 13, the second oil cylinder 14 and the third oil cylinder 15 to control the working state of the planetary steering machine, the first braking belt 16 is used for locking under the action of the first oil cylinder 13 to carry out in-situ steering, the second braking belt 17 is used for locking under the action of the second oil cylinder 14 to complete the differential speed of the crawler tracks on two sides to steer the crawler-type armored vehicles stably, and the locking clutch 18 is used for guaranteeing the starting of crawler-type armored vehicles.
A steering method of a steering wheel 1 steering system based on a hydraulic control principle, comprising the steps of:
a. travel steering: when the crawler armored vehicle needs to turn in the running process, the steering wheel 1 is rotated, the first travel switch 2 in the touch direction is closed, the third electromagnetic valve 6 is electrified, the output end of the corresponding third oil cylinder 15 stretches out, the locking clutch 18 is pushed to be separated, the second travel switch 8 of the oil cylinder is triggered when the output end of the third oil cylinder 15 stretches to the travel end point, the output end of the second oil cylinder 14 stretches out to enable the second brake belt 17 to be held tightly, and differential running of the crawler belts on two sides is completed to enable the crawler belts to run and turn;
b. in-situ steering: on the basis of traveling steering, the steering wheel 1 is turned, the first travel switch 2 is closed in the touch direction, the first electromagnetic valve 4 is electrified, the output end of the first oil cylinder 13 extends, the extending part of the first oil cylinder 13 triggers the first travel switch 7 of the oil cylinder, the passage of the first travel switch 7 of the oil cylinder enables the second electromagnetic valve 5 to be powered off and return, the output end of the first oil cylinder 13 continues to extend to complete the passage while the second oil cylinder 14 returns, and the first braking belt 16 is locked to perform in-situ steering.
c. And (3) braking: on the basis of in-situ steering, the first braking belt 16 is kept in a locked state, so that the braking of the crawler-type armored vehicle can be realized.
Wherein, the electrical component is connected with the power electricity of crawler-type armored car in this technical scheme.
Working principle:
the hydraulic cylinder is used for replacing the traditional pull rod type mechanical operation, the electromagnetic valve group is controlled by transmitting an electric signal through the steering wheel 1, the electromagnetic valve group performs corresponding actions to complete the operation of the oil cylinder on the planetary steering machine, thereby completing steering, the oil cylinder is controlled by inputting different electric signals to complete corresponding actions on the clutch and the brake belt of the whole planetary steering machine, and basic steering and other related actions are completed.
The steering and braking are completed through the oil cylinder, the steering wheel 1 is more labor-saving than the traditional pull rod through the control point signal of the steering wheel 1 rotating angle, the transmission mode that the steering wheel 1 lever is required to be steered by two different mechanisms is more labor-saving compared with the traditional machine, the transmission efficiency is higher, the action of each part is completed by adopting the hydraulic type, the modern hydraulic control is accurate, the precision performance of the mechanical control is guaranteed, and the electric signal control can be connected with the intelligent control in the scheme, so that the foundation is provided for the development of automatic intelligent driving in the future.
The invention has the advantages that the structure is simple, the circuit control module is arranged, the hydraulic drive module and the execution module are controlled to perform corresponding actions through inputting different electric signals so as to complete basic steering and other related actions, the control on steering is completed through the electromagnetic valve group which is integrally arranged, the actions are accurate and rapid, the control is reliable, the response speed and the control precision of the device meet the operation requirements of a driver on steering and braking, the hydraulic drive module is arranged, the servo control can be performed, the requirement on adjusting the braking force during steering and braking is met, the operating force and the operating stroke can be controlled in a proper and convenient range for the operator, the execution module is arranged, the operation on the planetary steering machine is completed through the hydraulic cylinder, the device is suitable for severe vibration and impact on a tracked vehicle, the whole assembly and disassembly are simple, the space is saved, the number of parts is less, and the arrangement of the vehicle is convenient.
The foregoing describes one embodiment of the present invention in detail, but the disclosure is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. The steering wheel steering system based on the hydraulic control principle comprises a steering wheel (1), wherein the steering wheel (1) is arranged in a cab of a crawler-type armored vehicle, and the steering wheel steering system is characterized by further comprising a circuit control module used for controlling the working state of an oil cylinder, a hydraulic driving module used for providing hydraulic power for the steering system and an execution module used for controlling the working state of a planetary steering gear in the crawler-type armored vehicle, wherein the circuit control module is correspondingly arranged with the steering wheel (1), the hydraulic driving module is correspondingly arranged at the lower part of the crawler-type armored vehicle, and the execution module is correspondingly arranged at the installation part of the planetary steering gear.
2. A steering wheel steering system based on hydraulic control principle according to claim 1, characterized in that the circuit control module comprises a direction switch assembly, a solenoid valve assembly and a cylinder switch assembly, the direction switch assembly is arranged corresponding to the steering wheel (1), the solenoid valve assembly is electrically connected with the direction switch assembly, and the cylinder switch assembly is electrically connected with the solenoid valve assembly.
3. Steering wheel steering system based on hydraulic control principle according to claim 2, characterized in that the steering switch assembly comprises a first steering switch (2) and a second steering switch (3), the first steering switch (2) and the second steering switch (3) are symmetrically arranged on both sides of the steering wheel (1), the steering wheel (1) is connected with the first steering switch (2) and the second steering switch (3) through mounting blocks, and the first steering switch (2) and the second steering switch (3) are in a normally open state.
4. A steering wheel steering system based on hydraulic control principle according to claim 3, characterized in that the solenoid valve assembly comprises a first solenoid valve (4), a second solenoid valve (5) and a third solenoid valve (6), the first solenoid valve (4) is electrically connected with the directional second travel switch (3), the second solenoid valve (5) is arranged in parallel with the first solenoid valve (4), and the third solenoid valve (6) is arranged in parallel with the second solenoid valve (5) and is electrically connected with the directional first travel switch (2).
5. A steering wheel steering system based on hydraulic control principle according to claim 4, characterized in that the first electromagnetic valve (4), the second electromagnetic valve (5) and the third electromagnetic valve (6) are all two-position three-way electromagnetic valves and are in a normally closed state, and the first electromagnetic valve (4), the second electromagnetic valve (5) and the third electromagnetic valve (6) are arranged in parallel and spaced and integrated to form a plug-in type two-position three-way electromagnetic valve assembly.
6. A steering wheel steering system based on hydraulic control principles according to claim 5, wherein the cylinder switch assembly comprises a cylinder first travel switch (7) and a cylinder second travel switch (8), the cylinder first travel switch (7) and the cylinder second travel switch (8) are electrically connected with the second electromagnetic valve (5), the first travel switch is in a normally open state, and the second travel switch is in a normally closed state.
7. Steering wheel steering system based on hydraulic control principle according to claim 6, characterized in that the hydraulic drive module comprises a drive hydraulic cylinder (9), a hydraulic pump (10), a one-way throttle valve (11) and an oil return filter (12), wherein the drive hydraulic cylinder (9) is arranged at the lower part of the crawler-type armored car, the hydraulic pump (10) is in oil communication with the drive hydraulic cylinder (9), the one-way throttle valve (11) is in oil communication with the hydraulic pump (10) and the third electromagnetic valve (6), the third electromagnetic valve (6) is in oil communication with the second electromagnetic valve (5) and the first electromagnetic valve (4), the oil return filter (12) is in oil communication with the drive hydraulic cylinder (9), the first electromagnetic valve (4), the second electromagnetic valve (5) and the third electromagnetic valve (6), and the first electromagnetic valve (4), the second electromagnetic valve (5) and the third electromagnetic valve (6) are all in oil return (12) oil communication with the drive hydraulic cylinder (9) through the oil return filter to form a complete hydraulic oil circuit.
8. Steering wheel steering system according to claim 7, characterized in that the execution module comprises a first cylinder (13), a second cylinder (14), a third cylinder (15) and an execution assembly, the first cylinder (13) being arranged in correspondence of the cylinder first travel switch (7) and being connected with the first solenoid valve (4), the second cylinder (14) being arranged in correspondence of the second solenoid valve (5) and being connected with the second solenoid valve (5), the third cylinder (15) being arranged in correspondence of the cylinder second travel switch (8) and being connected with the third solenoid valve (6), the execution assembly being arranged in correspondence of the first cylinder (13), the second cylinder (14) and the third cylinder (15) and being connected with a planetary steering machine.
9. Steering wheel steering system based on the hydraulic control principle according to claim 8, characterized in that the actuating assembly comprises a first braking band (16), a second braking band (17) and a locking clutch (18), the first braking band (16) being arranged in correspondence of the output of the first cylinder (13) and being connected with the planetary steering, the second braking band (17) being arranged in correspondence of the output of the second cylinder (14) and being connected with the planetary steering, the locking clutch (18) being arranged in correspondence of the third cylinder (15) and being connected with the planetary steering.
10. A steering method of a steering wheel steering system based on the hydraulic control principle according to claim 9, characterized by comprising the steps of:
a. travel steering: when the crawler-type armored vehicle needs to turn in the running process, the steering wheel (1) is rotated, the first travel switch (2) in the touch direction is closed, the third electromagnetic valve (6) is electrified, the output end of the corresponding third oil cylinder (15) stretches out, the locking clutch (18) is pushed to be separated, the second travel switch (8) of the oil cylinder is triggered when the output end of the third oil cylinder (15) stretches to the travel end point, the output end of the second oil cylinder (14) stretches out to enable the second brake belt (17) to clamp tightly, and differential running of the crawler belts on two sides is completed to enable the crawler-type armored vehicle to turn in the running process;
b. in-situ steering: on the basis of traveling steering, the steering wheel (1) is rotated, the first travel switch (2) is closed in a touch direction, the first electromagnetic valve (4) is electrified, the output end of the first oil cylinder (13) extends, the extending part of the first oil cylinder (13) triggers the first travel switch (7) of the oil cylinder, the passage of the first travel switch (7) of the oil cylinder enables the second electromagnetic valve (5) to be powered off and return, the output end of the first oil cylinder (13) continues to extend to complete the passage while the second oil cylinder (14) returns, and the first braking belt (16) is locked to perform in-situ steering.
c. And (3) braking: on the basis of in-situ steering, the first braking belt (16) is kept in a locking state, so that the crawler-type armored vehicle can be braked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310387538.1A CN116461599A (en) | 2023-04-12 | 2023-04-12 | Steering wheel steering system based on hydraulic control principle and steering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310387538.1A CN116461599A (en) | 2023-04-12 | 2023-04-12 | Steering wheel steering system based on hydraulic control principle and steering method thereof |
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| CN116461599A true CN116461599A (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310387538.1A Pending CN116461599A (en) | 2023-04-12 | 2023-04-12 | Steering wheel steering system based on hydraulic control principle and steering method thereof |
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| Country | Link |
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| CN (1) | CN116461599A (en) |
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- 2023-04-12 CN CN202310387538.1A patent/CN116461599A/en active Pending
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