CN108167279B - Hydraulic driving system for beach vehicle and application thereof - Google Patents
Hydraulic driving system for beach vehicle and application thereof Download PDFInfo
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- CN108167279B CN108167279B CN201810163804.1A CN201810163804A CN108167279B CN 108167279 B CN108167279 B CN 108167279B CN 201810163804 A CN201810163804 A CN 201810163804A CN 108167279 B CN108167279 B CN 108167279B
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- 239000002002 slurry Substances 0.000 claims abstract description 29
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000007935 neutral effect Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Motor Power Transmission Devices (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic driving system for a beach vehicle and application thereof, comprising a hydraulic system and a driving control system: the hydraulic system comprises an electric control variable hydraulic pump, an electromagnetic unloading valve, a wheel drive manual reversing valve, a slurry drive manual reversing valve, a parking valve, a bidirectional hydraulic wheel drive motor, a bidirectional hydraulic slurry drive motor, oil supply and a backflow valve control system; the driving control system comprises a driving controller, and controls an actuator of the system according to related operation and working condition signals; the input end of the driving controller is respectively connected with sensors corresponding to related operation and working condition signals, and the output end of the driving controller is respectively connected with each actuator. According to the hydraulic driving system for the beach vehicle, the hydraulic system is combined with the driving control, and the power driving mechanism with the combination of the slurry driving and the wheel driving is adopted, so that normal running on the beach under various conditions can be realized, and the hydraulic driving system has various protection mechanisms such as oil temperature protection, oil liquid level protection, oil pressure protection and the like, and the safety performance of the whole system is improved.
Description
Technical Field
The invention relates to a hydraulic driving system, in particular to a hydraulic driving system for a beach vehicle and application thereof.
Background
At present, the vehicle is driven by using an internal combustion engine and an electric motor as power and by a mechanical (hydraulic) transmission or a direct motor driving mode, and the two technologies are mature. However, for the beach working vehicle, the sealing requirements are high, the working conditions of low speed and large torque are more, the wading capacity is strong, the environmental humidity is high, and the existing mechanical transmission and electric transmission cannot be suitable. Particularly when the beach is easy to sink and encounters tide rise, the current mechanical transmission and electric transmission are difficult to avoid the risk of flooding or electricity safety of equipment.
Disclosure of Invention
The invention aims to: the hydraulic driving system for the beach vehicle combines the hydraulic system with the driving control, adopts a power driving mechanism with the combination of a slurry drive and a wheel drive, can realize normal running on the beach under various conditions, has various protection mechanisms such as oil temperature protection, oil liquid level protection, oil pressure protection and the like, and improves the safety performance of the whole system.
The technical scheme is as follows: the invention relates to a hydraulic driving system for a beach vehicle, which comprises a hydraulic system and a driving control system:
the hydraulic system comprises an electric control variable hydraulic pump, an electromagnetic unloading valve, a wheel drive manual reversing valve, a slurry drive manual reversing valve, a parking valve, a bidirectional hydraulic wheel drive motor, a bidirectional hydraulic slurry drive motor, oil supply and a backflow valve control system; the input end of the electric control variable hydraulic pump shaft is connected with an engine, and an oil suction pipe of the electric control variable hydraulic pump is connected with an oil suction filter to suck oil from an oil tank;
the output end of the electric control variable hydraulic pump is respectively connected with a wheel-drive manual reversing valve, a slurry-drive manual reversing valve, an electromagnetic unloading valve, an oil supply overflow valve, an energy accumulator and an oil supply one-way valve; the wheel-driven manual reversing valve is supplied with oil by an electric control variable hydraulic pump, and is also connected with a parking valve, an oil return overflow valve and an oil return electric control throttle valve, and the parking valve is also connected with a bidirectional hydraulic wheel-driving motor; the slurry-driven manual reversing valve is supplied with oil by a wheel-driven manual reversing valve and is also connected with a bidirectional hydraulic slurry-driven motor;
the oil supply and return valve control system is connected in the oil supply and return oil way of the electric control variable hydraulic pump;
the driving control system comprises a driving controller, and controls an actuator of the system according to related operation and working condition signals; the input end of the driving controller is respectively connected with sensors corresponding to related operation and working condition signals, and the output end of the driving controller is respectively connected with each actuator.
Further, the oil supply and return valve control system comprises an oil supply overflow valve, an oil return electric control throttle valve, an oil return overflow valve, an oil supply one-way valve and an oil return one-way valve, wherein the oil supply overflow valve and the oil supply one-way valve are respectively arranged in an oil supply oil way; the oil return throttle valve, the oil return overflow valve and the oil return one-way valve are all arranged in the oil return oil way.
Furthermore, an oil return radiator, a fan and a fan motor are further arranged in the oil return oil path, and the oil return radiator is connected with the oil tank through an oil return filter.
Further, the parking valve is connected with the bidirectional hydraulic driving wheel motor through a closed type easy-to-detach joint; the assembly connection between different vehicles and the quick separation of the hydraulic power cabin and the vehicle body pipeline are realized through the closed type easy-to-detach connector.
Further, the sensor comprises a parking valve position switch, a wheel drive manual reversing valve switch, a slurry drive manual reversing valve switch, an accelerator pedal, a service brake pedal, an oil tank liquid level and temperature sensor, an oil supply oil pressure sensor, an oil pump rotating speed sensor, an oil pump displacement sensor, a wheel drive motor rotating speed sensor and an oil return throttle valve sensor.
Further, the actuator comprises an oil pump displacement adjusting motor, an engine throttle motor, an oil return throttle valve adjusting motor, an electromagnetic unloading valve, a power switch, an indicator light, a voice prompt and alarm loudspeaker and an engine starting relay.
Further, other elements except a bidirectional hydraulic wheel driving motor and a wheel driving motor rotating speed sensor in the hydraulic system are fixed in or outside the semi-closed ship-type hydraulic power cabin, and the bidirectional hydraulic slurry driving motor is fixed on the slurry rudder.
Furthermore, the oil supply overflow valve and the oil supply one-way valve are also connected with an energy accumulator.
Furthermore, the hydraulic driving system for the beach vehicle can be applied to main driving or auxiliary driving of other vehicles or working devices.
The beneficial effects are that: according to the hydraulic driving system for the beach vehicle, the hydraulic system is combined with the driving control, and the power driving mechanism with the combination of the slurry driving and the wheel driving is adopted, so that normal running on the beach under various conditions can be realized, and the hydraulic driving system has various protection mechanisms such as oil temperature protection, oil liquid level protection, oil pressure protection and the like, and the safety performance of the whole system is improved.
Drawings
Fig. 1 is a schematic diagram of a hydraulic drive system according to the present invention.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to specific embodiments.
A hydraulic drive system for a beach vehicle as shown in fig. 1, comprising a hydraulic system and a drive control system:
the hydraulic system comprises an electric control variable hydraulic pump 35, an electromagnetic unloading valve 38, a wheel drive manual reversing valve 6, a slurry drive manual reversing valve 4, a parking valve 8, a bidirectional hydraulic wheel drive motor 21, a bidirectional hydraulic slurry drive motor 1, oil supply and a backflow valve control system; the input end of the shaft of the electric control variable hydraulic pump 35 is connected with an engine 33, and an oil suction pipe of the electric control variable hydraulic pump 35 is connected with an oil suction filter 34 to suck oil from the oil tank 29.
The output end of the electric control variable hydraulic pump 35 is respectively connected with a wheel-drive manual reversing valve 6, a slurry-drive manual reversing valve 4, an electromagnetic unloading valve 38, an oil supply overflow valve 31, an energy accumulator 30 and an oil supply one-way valve 18; the wheel-drive manual reversing valve 6 is supplied with oil by an electric control variable hydraulic pump 35, the wheel-drive manual reversing valve 6 is also connected with a parking valve 8, an oil return overflow valve 26 and an oil return electric control throttle valve 25, and the parking valve 8 is also connected with a bidirectional hydraulic wheel-drive motor 21; the slurry-driven manual reversing valve 4 is supplied with oil by a wheel-driven manual reversing valve 6 and is also connected with the bidirectional hydraulic slurry-driven motor 1; the oil supply and return oil paths of the electric control variable hydraulic pump 35 are connected with an oil supply and return valve control system.
The oil supply and return valve control system comprises an oil supply overflow valve 31, an oil return electric control throttle valve 25, an oil return overflow valve 26, an oil supply one-way valve 18 and an oil return one-way valve 19, wherein the oil supply overflow valve 31 and the oil supply one-way valve 18 are connected with each other and are respectively arranged in an oil supply oil way; the oil return electric control throttle valve 25, the oil return overflow valve 26 and the oil return one-way valve 19 are mutually connected and are all arranged in an oil return oil way.
Preferably, in order to ensure the stability of the oil temperature of the oil return path, an oil return radiator 23, a fan and a fan motor 22 are further arranged in the oil return path, and the oil return radiator 22 is connected with an oil tank 29 through an oil return filter 27, so that the circulation of the oil path is realized.
Preferably, in order to realize the expansion performance of the driving system, the parking valve 8 is connected with the bidirectional hydraulic driving wheel motor 21 through a closed type easy-to-detach joint 9; the assembly connection between different vehicles is realized through the closed type easy-to-detach joint 9. And the hydraulic driving system for the beach vehicle can be applied to main driving or auxiliary driving of other vehicles or working devices.
The drive control system comprises a drive controller 12, and controls an actuator of the system according to related operation and working condition signals; the input end of the driving controller 12 is respectively connected with sensors corresponding to related operation and working condition signals, and the output end of the driving controller 12 is respectively connected with each actuator.
Preferably, the sensor parking valve position switch 7, the wheel drive manual directional valve switch 5, the slurry drive manual directional valve switch 3, the accelerator pedal 16, the service brake pedal 17, the tank level and temperature sensor 28, the supply oil pressure sensor 39, the oil pump rotation speed sensor 32, the oil pump displacement sensor 36B, the wheel drive motor rotation speed sensor 20, and the return throttle sensor 24B.
Preferably, the actuators include an oil pump displacement adjustment motor 36A, an engine throttle motor 23, an oil return throttle adjustment motor 24A, an electromagnetic unloader valve 38, a power switch and indicator light 13, a voice prompt and alarm horn 14, an engine start relay 15, and the like.
The driving controller 12 is also provided with a touch screen 11, and the touch screen 11 and the driving controller 12 adopt a two-way communication mode, so that the touch screen can be used as a control input terminal and can also be used as a terminal for displaying; the drive controller 12 is also connected to a power cord 10.
Preferably, in order to be matched with the hydraulic system on the beach, the normal operation of the hydraulic system and the control driving system is ensured, and other elements except a bidirectional hydraulic wheel driving motor 21 and a wheel driving motor rotating speed sensor 20 in the hydraulic system are fixed in or outside a semi-closed ship-type hydraulic power cabin 37, and the bidirectional hydraulic wheel driving motor 1 is fixed on a rudder 2.
Preferably, the oil supply overflow valve 31 and the oil supply check valve 18 are also connected with an accumulator 30.
The operation mode of the driving system of the invention is as follows:
in the non-rotating parking state of the engine, if the wheel driving motor is required to perform parking braking, the parking valve is placed in an initial (parking) state, the main oil pipes of the wheel driving motor are respectively closed, and the motor is prevented from running. The unloading solenoid valve is in an unloading state of power failure.
When starting the engine, the drive controller must be opened, and the implement unloading solenoid valve is in an off-load state, the oil return throttle motor implement throttle valve is in a fully open state, and the oil pump displacement motor implement is in a small displacement position. When the driving controller confirms that the oil return throttle valve sensor is fully opened, the oil pump displacement sensor is at an initial (minimum) position, the wheel-driven manual reversing valve is at a neutral position, the slurry-driven manual reversing valve is at the neutral position, and the parking valve is at the initial (braking) position, the starting relay is allowed to work, otherwise, screen prompt and horn voice prompt are carried out.
When the engine is in an operating state, the parking brake can be maintained, and the idle state, the wheel drive (forward or backward) state, the service brake state, the overload protection state and the slurry drive (forward or backward) state of the wheel drive can be executed.
When executing the neutral state, the driver operates: the parking valve is in a driving position (non-initial position), the wheel-driven manual reversing valve is in a neutral position (neutral position), the slurry-driven manual reversing valve is in the neutral position (neutral position), the driving brake can be operated, and the accelerator pedal can be operated. The controller will perform: the oil return throttle valve sensor is in a full-open state, the unloading solenoid valve is in an unloading state of power failure, the engine throttle motor controls the engine rotating speed according to the position of the throttle pedal, and the oil pump displacement motor executes the displacement position corresponding to the automatic pedal of the travelling crane.
When performing forward (or reverse), the driver operates: the parking valve is in a driving position (non-initial position), the wheel-drive manual reversing valve is in a driving forward (or backward) gear, the slurry-drive manual reversing valve is in a neutral position (neutral position), and the driving brake is not operated, so that the accelerator pedal is operated. The controller will perform: the oil return throttle valve sensor is in a fully opened state, the charge solenoid valve is in a charged state, and the engine motor and the oil pump displacement motor are executed to a preset state according to the throttle position.
When forward (or reverse) coasting is performed, the driver operates: the parking valve is in a driving position (non-initial position), the wheel-drive manual reversing valve is in a driving forward (or backward) gear, the slurry-drive manual reversing valve is in a neutral position (neutral position), and no brake and no accelerator pedal are operated. The controller will perform: the oil return throttle valve sensor is in a full-open state, the unloading solenoid valve is in an unloading state of power failure, and the engine throttle motor and the oil pump displacement motor execute flow corresponding to the motor rotation speed.
When the service brake is performed, the driver operates: the parking valve is in a driving position (non-initial position), the wheel-drive manual reversing valve is in a driving forward (or backward) gear, the slurry-drive manual reversing valve is in a neutral position (neutral position), the brake pedal is operated, and the accelerator pedal is not executed. The controller will perform: the oil return throttle valve controls the opening according to the stroke of the brake pedal, the unloading electromagnetic valve is in an unloading state of power failure, and the engine throttle motor and the oil pump displacement motor execute the flow corresponding to the motor rotating speed.
When performing a slurry drive, the driver operates: the parking valve is in an initial (parking) position; if the wheel motor is loaded, the parking valve can be positioned at a driving (non-initial position) position, and the wheels are driven simultaneously; the wheel-drive manual reversing valve is in a driving forward (or backward) gear, and the slurry-drive manual reversing valve is in a forward (or backward) gear. The controller also controls the related executing motor and the electromagnetic valve according to the strokes of the service brake pedal and the accelerator pedal, so that the functions of driving, sliding, braking and the like are realized.
When the vehicle is sunk and is not in full rescue, the parking valve is in a primary position (braking) position, a wire harness and a detachable joint between the hydraulic power cabin and the wheel drive motor can be rapidly closed, the detachable joint between the parking valve and the motor is respectively closed, a detachable fixed rope between the hydraulic power cabin and the frame is relieved, the hydraulic power cabin can be lifted off or float, and equipment elements in the power cabin are prevented from being damaged due to flooding. The floating can be driven by a slurry pump according to a ship, so that workers and important parts can be conveniently evacuated.
The overload protection state is divided into three states of oil temperature protection, oil liquid level protection and oil pressure protection:
when the oil temperature of the oil tank is higher, the display screen alarm, the loudspeaker voice alarm, the opening of the oil return throttle valve during braking, the unloading electromagnetic valve during driving and unloading are executed until the command of stopping.
When the oil level of the oil tank is low or the change of the liquid level is large after the operation, the display screen alarm and the horn voice alarm are executed, the opening of the oil return throttle valve is gradually increased during the service braking, the horn voice prompt is used for slowly executing the parking braking, and the unloading electromagnetic valve is unloaded during the running until the command of stopping.
When the oil supply pressure is close to the pressure of the oil supply overflow valve, the display screen alarm, the loudspeaker voice alarm and the unloading electromagnetic valve unloading are executed, so that the invalid power loss is reduced, and the heating value of the oil is reduced.
According to the hydraulic driving system for the beach vehicle, the hydraulic system is combined with the driving control, and the power driving mechanism with the combination of the slurry driving and the wheel driving is adopted, so that normal running on the beach under various conditions can be realized, and the hydraulic driving system has various protection mechanisms such as oil temperature protection, oil liquid level protection, oil pressure protection and the like, and the safety performance of the whole system is improved.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the invention.
Claims (5)
1. The utility model provides a hydraulic drive system for beach vehicle which characterized in that: comprising a hydraulic system and a drive control system:
the hydraulic system comprises an electric control variable hydraulic pump (35), an electromagnetic unloading valve (38), a wheel drive manual reversing valve (6), a slurry drive manual reversing valve (4), a parking valve (8), a bidirectional hydraulic wheel drive motor (21), a bidirectional hydraulic slurry drive motor (1), an oil supply and backflow valve control system; the input end of the shaft of the electric control variable hydraulic pump (35) is connected with an engine, and an oil suction pipe of the electric control variable hydraulic pump (35) is connected with an oil suction filter (34) to suck oil from an oil tank (29);
the output end of the electric control variable hydraulic pump (35) is respectively connected with a wheel-driven manual reversing valve (6), a slurry-driven manual reversing valve (4), an electromagnetic unloading valve (38), an oil supply overflow valve (31), an energy accumulator (30) and an oil supply one-way valve (18); the wheel-driven manual reversing valve (6) is supplied with oil by an electric control variable hydraulic pump (35), the wheel-driven manual reversing valve (6) is also connected with a parking valve (8), an oil return overflow valve (26) and an oil return throttle valve (25), and the parking valve (8) is also connected with a bidirectional hydraulic wheel-driven motor (21); the slurry-driven manual reversing valve (4) is supplied with oil by an electric control variable hydraulic pump (35) and is also connected with the bidirectional hydraulic slurry-driven motor (1);
an oil supply and return oil way of the electric control variable hydraulic pump (35) is connected with an oil supply and return valve control system;
the drive control system comprises a drive controller (12) for controlling an actuator of the system according to related operation and working condition signals; the input end of the driving controller (12) is respectively connected with sensors corresponding to related operation and working condition signals, and the output end of the driving controller (12) is respectively connected with each actuator;
the oil supply and return valve control system comprises an oil supply overflow valve (31), an oil return throttle valve (25), an oil return overflow valve (26), an oil supply one-way valve (18) and an oil return one-way valve (19), wherein the oil supply overflow valve (31) and the oil supply one-way valve (18) are respectively arranged in an oil supply oil way; the oil return throttle valve (25), the oil return overflow valve (26) and the oil return one-way valve (19) are all arranged in an oil return way;
an oil return radiator (23), a fan and a fan motor (22) are further arranged in the oil return oil path, and the oil return radiator (23) is connected with an oil tank (29) through an oil return filter (27);
the oil inlet end of the oil supply one-way valve (18) is connected with the energy accumulator (30), and the oil outlet end is connected with the oil return one-way valve (19) and the fan motor (22); the oil inlet end of the oil return check valve (19) is connected with the oil return throttle valve (25), and the oil outlet end is connected with the oil supply check valve (18) and the fan motor (22).
2. The hydraulic drive system for a beach vehicle of claim 1, wherein: the parking valve (8) is connected with the bidirectional hydraulic wheel driving motor (21) through a closed type easy-to-detach joint (9); the assembly connection between different vehicles and the quick separation of the hydraulic power cabin (37) and the vehicle body pipeline are realized through the closed type easy-to-detach connector (9).
3. The hydraulic drive system for a beach vehicle of claim 1, wherein: the sensor comprises a parking valve position switch (7), a wheel drive manual reversing valve switch (5), a slurry drive manual reversing valve switch (3), an accelerator pedal (16), a service brake pedal (17), an oil tank liquid level and temperature sensor (28), an oil supply oil pressure sensor (39), an oil pump rotating speed sensor (32), an oil pump displacement sensor (36B), a wheel drive motor rotating speed sensor (20) and an oil return throttle valve sensor (24B).
4. The hydraulic drive system for a beach vehicle of claim 1, wherein: the actuator comprises an oil pump displacement adjusting motor (36A), an engine accelerator motor (33), an oil return throttle valve adjusting motor (24A), an electromagnetic unloading valve (38), a power switch and indicator lamp (13), a voice prompt and alarm horn (14) and an engine starting relay (15).
5. A hydraulic drive system for a beach vehicle according to any one of claims 1-4, characterized in that: the drive system is used as a main drive or an auxiliary drive for other vehicles or working devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163804.1A CN108167279B (en) | 2018-02-27 | 2018-02-27 | Hydraulic driving system for beach vehicle and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163804.1A CN108167279B (en) | 2018-02-27 | 2018-02-27 | Hydraulic driving system for beach vehicle and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167279A CN108167279A (en) | 2018-06-15 |
| CN108167279B true CN108167279B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810163804.1A Active CN108167279B (en) | 2018-02-27 | 2018-02-27 | Hydraulic driving system for beach vehicle and application thereof |
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| CN (1) | CN108167279B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130217280A1 (en) * | 2012-02-07 | 2013-08-22 | Gibbs Technologies Limited | Hydraulic system for an amphibian |
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| CN1740015A (en) * | 2004-08-28 | 2006-03-01 | 荆晋宏 | Automatic brake set for automobile |
| CN202579472U (en) * | 2012-05-22 | 2012-12-05 | 山推工程机械股份有限公司 | Oil replenishing and cooling system |
| CN203110853U (en) * | 2013-03-22 | 2013-08-07 | 中国人民解放军装甲兵工程学院 | Hydraulic driving system of vertically-lifting flying-driving dual-purpose vehicle |
| CN203767868U (en) * | 2013-12-31 | 2014-08-13 | 徐州重型机械有限公司 | Self-disassembly power oil supply device for large crane jib |
| CN208123170U (en) * | 2018-02-27 | 2018-11-20 | 如东蓝湾捕捞技术有限公司 | A kind of beach vehicle hydraulic pressure drive system |
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