CN117719281A - Multifunctional hydraulic system of all-terrain vehicle - Google Patents

Abstract

The invention relates to the technical field of all-terrain vehicles, in particular to a multifunctional hydraulic system of an all-terrain vehicle, which comprises a steering motor, a variable pump, a closed oil tank, a water pushing motor, a propeller combination, a pipeline filter, a first switching valve group, a second switching valve group, an oil return pipe combination, a steering mechanism combination, two steering inhaul cables, a water pushing force taking valve block combination, a pressure relief interface, a first hydraulic force taking interface, a second hydraulic force taking interface, a hydraulic mode switching switch, an accelerator switching switch, a manual accelerator and related connecting oil pipes and wires; by adopting the mode, the free steering in the land running process of the vehicle can be realized, the power input can be provided for a propeller propulsion system additionally arranged at the tail part of the vehicle body, the water running speed of the all-terrain vehicle is improved, and the water performance is improved; and can also provide stable power input for various conventional rescue tools, and change the vehicle into a movable hydraulic power output platform.

Description

Multifunctional hydraulic system of all-terrain vehicle

Technical Field

The invention relates to the technical field of all-terrain vehicles, in particular to a multifunctional hydraulic system of an all-terrain vehicle.

Background

All-terrain vehicles are vehicles capable of running on any terrain, and can freely walk on terrain where ordinary vehicles are difficult to maneuver. Commonly known as beach vehicles in China. Because of its structure very similar to a motorcycle and many parts are common to a motorcycle, it is also known as a "four-wheel motorcycle". The vehicle type has multiple purposes, is not limited by road conditions, has wide application in North America and western Europe, and has a rising trend year by year.

In the current all-terrain vehicle design, one is a frame type vehicle body design, and a steering system is track steering and has a wading function; the other is a bearing ship-shaped vehicle body structure, the steering system is hydraulic differential steering capable of realizing in-situ steering, and the vehicle has a floating function.

However, the all-terrain vehicle designed by the frame type vehicle body does not have a floating function; the all-terrain vehicle with the bearing type ship-shaped vehicle body structure is driven on water by means of tire, the speed on water is low, steering is inflexible, operability is poor, the all-terrain vehicle is only suitable for running on calm water, the use environment of the all-terrain vehicle is greatly limited, and the functional performance of the all-terrain vehicle cannot be fully exerted. And the vehicle type has only a carrying function and can not provide power for conventional hydraulic rescue equipment.

Disclosure of Invention

The invention aims to provide a multifunctional hydraulic system of an all-terrain vehicle, which not only can realize free steering in the land running process of the vehicle, but also can provide power input for a propeller propulsion system additionally arranged at the tail part of the vehicle body, thereby improving the water running speed and the water performance of the all-terrain vehicle; and can also provide stable power input for various conventional rescue tools, and change the vehicle into a movable hydraulic power output platform.

In order to achieve the above purpose, the invention provides an all-terrain vehicle multifunctional hydraulic system, which comprises a steering motor, a variable pump, a closed oil tank, a water push motor, a propeller combination, a pipeline filter, a first switching valve group, a second switching valve group, an oil return pipe combination, a steering mechanism combination, two steering cables, a water push power valve block combination, a first water push motor oil pipe, a second water push motor oil pipe, a first rubber pipe, a second rubber pipe, a third rubber pipe, a fourth rubber pipe, a first combined oil pipe, a second combined oil pipe, a third combined oil pipe, a fourth combined oil pipe, a fifth combined oil pipe, a sixth combined oil pipe, a seventh combined oil pipe, an eighth combined oil pipe, a ninth combined oil pipe, a tenth combined oil pipe, a first oil return pipe, a second oil return pipe, a third oil return pipe, a pressure relief interface, a first hydraulic power interface, a second hydraulic power interface, a hydraulic mode switch, an accelerator switch and a manual accelerator;

the first combined oil pipe is communicated with one side of the steering motor; the second switching valve group is arranged on one side of the first combined oil pipe in a communicating way; the fourth combined oil pipe is communicated with one side of the second switching valve group; the variable pump is communicated with one side of the fourth combined oil pipe; the second combined oil pipe is communicated with one side of the steering motor; the first switching valve group is arranged on one side of the second combined oil pipe in a communicating way; the third combined oil pipe is communicated with the first switching valve group and the variable pump; the oil return pipe is arranged at one side of the steering motor in a combined and communicated manner; the closed oil tank is communicated with one side of the oil return pipe assembly; the first rubber pipe is communicated with one side of the closed oil tank; the pipeline filter is communicated with one side of the first rubber pipe; the second rubber pipe is communicated with the closed oil tank and the variable pump; the third rubber pipe is communicated with one side of the pipeline filter; the fourth rubber pipe is communicated with one side of the closed oil tank; the steering mechanism is arranged on one side of the variable pump in a combined way; the two steering inhaul cables are respectively arranged at one side of the steering mechanism combination; the water pushing and pulling force valve block assembly is positioned at one side of the closed oil tank; the water pushing motor is positioned at one side of the closed oil tank; the first water pushing motor oil pipe is communicated with one side of the water pushing motor; the second water pushing motor oil pipe is communicated with one side of the water pushing motor; the propeller combination is arranged at one side of the water pushing motor; the fifth combined oil pipe is communicated with the first switching valve group and is communicated with the water pushing force valve block combination; the seventh combined oil pipe is communicated with the second switching valve group and is communicated with the water pushing force valve block combination; the sixth combined oil pipe is communicated with the water pushing force valve block combination and is communicated with the second water pushing motor oil pipe; the ninth combined oil pipe is communicated with the water pushing force valve block combination and is communicated with the first water pushing motor oil pipe; the third oil return pipe is communicated with one side of the closed oil tank; the first oil return pipe is communicated with the third oil return pipe and is communicated with the water pushing motor; the second oil return pipe is communicated with one side of the third oil return pipe; the pressure relief interface is communicated with one side of the second oil return pipe; the eighth combined oil pipe is communicated with one side of the water pushing and taking valve block; the second hydraulic force-taking interface is communicated with one side of the eighth combined oil pipe; the tenth combined oil pipe is communicated with one side of the water pushing and taking valve block; the first hydraulic force taking interface is communicated with one side of the tenth combined oil pipe; the hydraulic mode change-over switch is positioned at one side of the closed oil tank; the throttle change-over switch is positioned at one side of the hydraulic mode change-over switch; the manual throttle is positioned at one side of the throttle change-over switch.

The closed oil tank comprises a tank body, a first oil tank interface, a second oil tank interface, a third oil tank interface, a hydraulic oil filling port and an oil return pressure relief valve combination; the first oil tank interface is communicated with one side of the tank body; the oil return pressure relief valve is respectively communicated with the first oil tank interface, the oil return pipe combination, the fourth rubber pipe and the third oil return pipe; the second oil tank interface is communicated with the tank body and the second rubber pipe; the third oil tank interface is communicated with the tank body and the first rubber pipe; the hydraulic filling port is communicated with one side of the box body.

The water pushing force taking valve block assembly comprises a water pushing force taking valve block main body, two water pushing electromagnetic valves, two force taking electromagnetic valves, a first main pipeline interface, a second main pipeline interface, a first water pushing pipeline interface, a second water pushing pipeline interface, a first force taking pipeline interface and a second force taking pipeline interface; the two water pushing electromagnetic valves are respectively arranged on one side of the water pushing force valve block main body and are respectively connected with the hydraulic mode change-over switch; the two power taking electromagnetic valves are respectively arranged on one side of the water pushing power taking valve block main body and are respectively connected with the hydraulic mode change-over switch; the first main pipeline interface is communicated with the water pushing force valve block main body and is communicated with the fifth combined oil pipe; the second main pipeline interface is communicated with the water pushing force valve block main body and is communicated with the seventh combined oil pipe; the first water pushing pipeline interface is communicated with the water pushing force valve block main body and is communicated with the ninth combined oil pipe; the second water pushing pipeline interface is communicated with the water pushing force valve block main body and is communicated with the sixth combined oil pipe; the first power taking pipeline interface is communicated with the water pushing power taking valve block main body and is communicated with the eighth combined oil pipe; the second power taking pipeline interface is communicated with the water pushing power taking valve block main body and is communicated with the tenth combined oil pipe.

The first switching valve group comprises a first switching valve group main body, a third main pipeline interface, a fourth main pipeline interface, a fifth main pipeline interface and a first switching electromagnetic valve; the third main pipeline interface is communicated with the first switching valve group main body and is communicated with the fifth combined oil pipe; the fourth main pipeline interface is communicated with the first switching valve group main body and is communicated with the third combined oil pipe; the fifth main pipeline interface is communicated with the first switching valve group main body and is communicated with the second combined oil pipe; the first switching solenoid valve is arranged on one side of the first switching valve group main body and is connected with the hydraulic mode switching switch.

The second switching valve group comprises a second switching valve group main body, a sixth main pipeline interface, a seventh main pipeline interface, an eighth main pipeline interface and a second switching electromagnetic valve; the sixth main pipeline interface is communicated with the second switching valve group main body and is communicated with the fourth combined oil pipe; the seventh main pipeline interface is communicated with the second switching valve group main body and is communicated with the seventh combined oil pipe; the eighth main pipeline interface is communicated with the second switching valve group main body and is communicated with the first combined oil pipe; the second switching electromagnetic valve is arranged on one side of the second switching valve group main body and is connected with the hydraulic mode switching switch.

The invention relates to a multifunctional hydraulic system of an all-terrain vehicle, which consists of a closed oil tank, a variable pump, a pipeline filter, a water pushing motor, a steering motor, a first switching valve group, a second switching valve group, a water pushing and taking valve block combination, a hydraulic mode switching switch, an accelerator switching switch, a manual accelerator combination and related connecting oil pipes and wires. The vehicle can realize free steering in the land running process of the vehicle, and can provide power input for a propeller propulsion system additionally arranged at the tail part of the vehicle body, so that the water running speed of the all-terrain vehicle is improved, and the water performance is improved; and can also provide stable power input for hydraulic conventional rescue tools such as hydraulic crushing pick, hydraulic circular saw, hydraulic pump and the like through the quick-change hydraulic power take-off interface additionally arranged on the vehicle body, change the vehicle into a movable hydraulic power output platform, accelerate the rescue process and reduce the rescue difficulty. The structure is reasonable and reliable, the operation is simple, and the use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a hydraulic system assembly of the present invention.

Fig. 2 is a schematic structural view of the hydraulic mode changeover switch of the present invention.

Fig. 3 is a schematic structural view of the throttle switching switch of the present invention.

Fig. 4 is a schematic structural view of the manual throttle of the present invention.

FIG. 5 is a schematic diagram of the water push-pull valve block assembly of the present invention.

Fig. 6 is a schematic structural view of a first switching valve group of the present invention.

Fig. 7 is a schematic structural diagram of a second switching valve group of the present invention.

Fig. 8 is a schematic view of the structure of the closed fuel tank of the present invention.

Fig. 9 is an exploded view of the hydraulic system of the present invention when traveling on land.

FIG. 10 is an exploded view of the hydraulic system of the present invention after water pushing and pulling.

1-steering motor, 2-variable pump, 3-closed tank, 4-water push motor, 5-propeller combination, 6-pipe filter, 7-first switch valve group, 8-second switch valve group, 9-return oil pipe combination, 10-steering mechanism combination, 11-steering cable, 12-water push force valve block combination, 13-first water push motor oil pipe, 14-second water push motor oil pipe, 15-first rubber pipe, 16-second rubber pipe, 17-third rubber pipe, 18-fourth rubber pipe, 19-first combination oil pipe, 20-second combination oil pipe, 21-third combination oil pipe, 22-fourth combination oil pipe, 23-fifth combination oil pipe, 24-sixth combination oil pipe, 25-seventh combination oil pipe 26-eighth combination oil pipe, 27-ninth combination oil pipe, 28-tenth combination oil pipe, 29-first oil return pipe, 30-second oil return pipe, 31-third oil return pipe, 32-pressure relief interface, 33-first hydraulic power take-off interface, 34-second hydraulic power take-off interface, 35-hydraulic mode switch, 36-throttle switch, 37-manual throttle, 38-tank, 39-first tank interface, 40-second tank interface, 41-third tank interface, 42-hydraulic oil filler, 43-oil return pressure relief valve combination, 44-water push power take-off valve block main body, 45-water push solenoid valve, 46-power take-off solenoid valve, 47-first main line interface, 48-second main line interface, 49-first water push pipeline interface, 50-second water push pipeline interface, 51-first power take-off pipeline interface, 52-second power take-off pipeline interface, 53-first switching valve bank main body, 54-third main pipeline interface, 55-fourth main pipeline interface, 56-fifth main pipeline interface, 57-first switching solenoid valve, 58-second switching valve bank main body, 59-sixth main pipeline interface, 60-seventh main pipeline interface, 61-eighth main pipeline interface and 62-second switching solenoid valve.

Detailed Description

Referring to fig. 1-10, fig. 1 is a diagram of a hydraulic system assembly according to the present invention. Fig. 2 is a schematic structural view of the hydraulic mode changeover switch of the present invention. Fig. 3 is a schematic structural view of the throttle switching switch of the present invention. Fig. 4 is a schematic structural view of the manual throttle of the present invention. FIG. 5 is a schematic diagram of the water push-pull valve block assembly of the present invention. Fig. 6 is a schematic structural view of a first switching valve group of the present invention. Fig. 7 is a schematic structural diagram of a second switching valve group of the present invention. Fig. 8 is a schematic view of the structure of the closed fuel tank of the present invention. Fig. 9 is an exploded view of the hydraulic system of the present invention when traveling on land. FIG. 10 is an exploded view of the hydraulic system of the present invention after water pushing and pulling.

The invention provides a multifunctional hydraulic system of an all-terrain vehicle, which comprises: the hydraulic power steering system comprises a steering motor 1, a variable pump 2, a closed oil tank 3, a hydraulic motor 4, a propeller combination 5, a pipeline filter 6, a first switching valve bank 7, a second switching valve bank 8, an oil return pipe combination 9, a steering mechanism combination 10, two steering cables 11, a hydraulic power taking valve block combination 12, a first hydraulic motor oil pipe 13, a second hydraulic motor oil pipe 14, a first rubber pipe 15, a second rubber pipe 16, a third rubber pipe 17, a fourth rubber pipe 18, a first combined oil pipe 19, a second combined oil pipe 20, a third combined oil pipe 21, a fourth combined oil pipe 22, a fifth combined oil pipe 23, a sixth combined oil pipe 24, a seventh combined oil pipe 25, an eighth combined oil pipe 26, a ninth combined oil pipe 27, a tenth combined oil pipe 28, a first oil return pipe 29, a second oil return pipe 30, a third oil return pipe 31, a pressure relief interface 32, a first hydraulic power taking interface 33, a second hydraulic power taking interface 34, a hydraulic mode switch 35, an accelerator switch 36 and a manual accelerator 37; the closed oil tank 3 comprises a tank body 38, a first oil tank interface 39, a second oil tank interface 40, a third oil tank interface 41, a hydraulic oil filling port 42 and an oil return pressure relief valve combination 43; the hydraulic power take-off valve block combination 12 comprises a hydraulic power take-off valve block main body 44, two hydraulic solenoid valves 45, two power take-off solenoid valves 46, a first main pipeline interface 47, a second main pipeline interface 48, a first hydraulic pipeline interface 49, a second hydraulic pipeline interface 50, a first power take-off pipeline interface 51 and a second power take-off pipeline interface 52; the first switching valve group 7 includes a first switching valve group main body 53, a third main line port 54, a fourth main line port 55, a fifth main line port 56, and a first switching solenoid valve 57; the second switching valve group 8 includes a second switching valve group main body 58, a sixth main manifold port 59, a seventh main manifold port 60, an eighth main manifold port 61, and a second switching solenoid valve 62; according to the scheme, free steering in the land running process of the vehicle can be realized, power input can be provided for a propeller propulsion system additionally arranged at the tail part of the vehicle body, the water running speed of the all-terrain vehicle is improved, and the water performance is improved; and can also provide stable power input for various conventional rescue tools, and change the vehicle into a movable hydraulic power output platform.

For the present embodiment, the first oil combining pipe 19 is disposed on one side of the steering motor 1 in a communicating manner; the second switching valve group 8 is arranged on one side of the first combined oil pipe 19 in a communicating manner; the fourth combined oil pipe 22 is arranged on one side of the second switching valve group 8 in a communicating way; the variable pump 2 is arranged on one side of the fourth combined oil pipe 22 in a communicating way; the second combined oil pipe 20 is arranged on one side of the steering motor 1 in a communicating way; the first switching valve group 7 is arranged on one side of the second combined oil pipe 20 in a communicating way; the third combined oil pipe 21 is communicated with the first switching valve group 7 and is communicated with the variable pump 2; the oil return pipe combination 9 is communicated with one side of the steering motor 1; the closed oil tank 3 is communicated with one side of the oil return pipe combination 9; the first rubber tube 15 is communicated with one side of the closed oil tank 3; the pipeline filter 6 is arranged on one side of the first rubber pipe 15 in a communicating way; the second rubber tube 16 is communicated with the closed oil tank 3 and is communicated with the variable pump 2; the third rubber tube 17 is communicated with one side of the pipeline filter 6; the fourth rubber tube 18 is communicated with one side of the closed oil tank 3; the steering mechanism combination 10 is arranged on one side of the variable pump 2; the two steering inhaul cables 11 are respectively arranged at one side of the steering mechanism combination 10; the water pushing and pulling force valve block combination 12 is positioned at one side of the closed oil tank 3; the water pushing motor 4 is positioned at one side of the closed oil tank 3; the first water pushing motor oil pipe 13 is communicated with one side of the water pushing motor 4; the second water pushing motor oil pipe 14 is communicated with one side of the water pushing motor 4; the propeller combination 5 is arranged at one side of the water pushing motor 4; the fifth combined oil pipe 23 is communicated with the first switching valve group 7 and is communicated with the water pushing force valve block combination 12; the seventh combined oil pipe 25 is communicated with the second switching valve group 8 and is communicated with the water pushing force valve block combination 12; the sixth combination oil pipe 24 is communicated with the water pushing force valve block combination 12 and is communicated with the second water pushing motor oil pipe 14; the ninth combined oil pipe 27 is communicated with the water pushing force valve block combination 12 and is communicated with the first water pushing motor oil pipe 13; the third oil return pipe 31 is arranged on one side of the closed oil tank 3 in a communicating manner; the first oil return pipe 29 is communicated with the third oil return pipe 31 and is communicated with the water pushing motor 4; the second oil return pipe 30 is arranged on one side of the third oil return pipe 31 in a communicating manner; the pressure relief interface 32 is arranged on one side of the second oil return pipe 30 in a communicating manner; the eighth combined oil pipe 26 is arranged on one side of the water pushing and taking valve block combination 12 in a communicating way; the second hydraulic power take-off port 34 is arranged on one side of the eighth combined oil pipe 26 in a communicating manner; the tenth combined oil pipe 28 is arranged on one side of the water pushing and taking valve block combination 12 in a communicating way; the first hydraulic power take-off port 33 is arranged on one side of the tenth combined oil pipe 28 in a communicating manner; the hydraulic mode change-over switch 35 is positioned on one side of the closed oil tank 3; the throttle switch 36 is positioned on one side of the hydraulic mode switch 35; the manual throttle 37 is located on the side of the throttle switch 36.

The whole system consists of a closed oil tank 3, a variable pump 2, a pipeline filter 6, a water pushing motor 4, a steering motor 1, a first switching valve group 7, a second switching valve group 8, a water pushing force valve block combination 12, a hydraulic mode switching switch 35, an accelerator switching switch 36, a manual accelerator 37 combination and related connecting oil pipes and wires. Switch, throttle change-over switch 36, manual throttle 37 combination and related connecting oil pipe and wire. The hydraulic mode switch 35 is provided with 6 groups of wires, which are respectively connected with the electromagnetic valve of the first switch valve group 7, the electromagnetic valve of the second switch valve group 8 and the water pushing electromagnetic valve 45 and the power taking electromagnetic valve 46 on the water pushing valve block combination 12, and the hydraulic oil flow direction of each valve block can be controlled by operating the hydraulic mode switch 35; the throttle switch 36 is used to switch the throttle operation mode, that is, when the driver can operate the throttle normally in the cab and hydraulic power is needed to operate the rescue equipment, the throttle operation can be switched to the manual mode, and the manual throttle 37 can only be used.

The initial state of the whole hydraulic system assembly is a land driving mode, namely, the hydraulic system only meets the land steering requirement. In this mode, the hydraulic mode changeover switch 35 is in the closed state, the solenoid valves of the first switching valve group 7 and the solenoid valves of the second switching valve group 8 are in the open state, and the water push solenoid valve 45 and the power take-off solenoid valve 46 of the water push-off valve block combination 12 are all in the closed state. At this time, the closed oil tank 3, the variable pump 2, the pipeline filter 6, the steering motor 1, the first switching valve group 7 and the second switching valve group 8 are connected by related pipelines to form a hydraulic circuit to provide power for the steering system.

After the engine is started, the oil pump transmission shaft drives the variable pump 2 to rotate to form hydraulic power, the steering wheel is operated to rotate leftwards or rightwards, the steering stay rope 11 is driven to move, the steering support on the variable pump 2 is pushed to rotate leftwards or rightwards, hydraulic oil in the variable pump 2 is further driven to flow forwards or reversely, and the steering motor 1 on the same hydraulic pipeline starts to turn leftwards or rightwards, so that the steering of the whole vehicle is realized.

When the vehicle runs in a water area, a hydraulic system is required to provide power input for the water pushing motor 4, and the water pushing motor 4 drives the propeller to rotate so as to provide water area running power for the whole vehicle. At this time, the hydraulic mode changeover switch 35 needs to be switched to the water travel mode. In this mode, the solenoid valve of the first switching valve group 7 and the solenoid valve of the second switching valve group 8 are in a closed state, the water push solenoid valve 45 of the water push-out force valve block combination 12 is in an open state, and the force solenoid valve 46 is in a closed state. At this time, the closed oil tank 3, the variable pump 2, the pipeline filter 6, the water pushing motor 4, the first switching valve group 7, the second switching valve group 8 and the water pushing force valve block combination 12 are connected by related pipelines to form a hydraulic system and form a loop to provide power for the water pushing motor 4.

The gearbox starts the engine under the neutral gear state, and the oil pump transmission shaft drives the variable pump 2 to rotate to form hydraulic power, and the steering wheel is operated to be clockwise to the bottom and locked, so that the variable pump 2 outputs stable hydraulic power. The hydraulic pipeline connected with the water pushing motor 4 is used for transmitting power to the water pushing motor 4, so that the motor is rotated, and the propeller is driven to rotate, thereby providing power for the water running of the vehicle. The speed of the rotation speed of the water pushing motor 4 is controlled by an accelerator, and the water area steering is controlled by another system. When the vehicle needs to be backed, the steering wheel can be unlocked and operated anticlockwise, the steering stay rope 11 is driven to push the steering support on the variable pump 2 to rotate reversely, at the moment, hydraulic oil reversely flows in the pipeline, so that the water push motor 4 is reversely rotated, and the screw propeller is driven to reversely rotate, and the vehicle is backed up.

When the vehicle needs to supply power input to the external hydraulic device, the hydraulic mode switching switch 35 needs to be switched to the hydraulic power take-off mode. In this mode, the solenoid valve of the first switching valve group 7 and the solenoid valve of the second switching valve group 8 are in a closed state, the water push solenoid valve 45 of the water push power valve block combination 12 is in a closed state, and the power solenoid valve 46 is in an open state. At this time, the closed oil tank 3, the variable pump 2, the pipeline filter 6, the first switching valve group 7, the second switching valve group 8, the quick-change hydraulic power take-off interface and the water pushing power valve block combination 12 are connected by related pipelines to form a hydraulic system, but no loop is formed. When the power take-off interface is connected with the hydraulic rescue equipment, a hydraulic loop is formed, and hydraulic oil can flow through the connected hydraulic equipment to provide power for the hydraulic equipment.

The gearbox starts the engine under the neutral gear state, and the oil pump transmission shaft drives the variable pump 2 to rotate to form hydraulic power, and the steering wheel is operated to be clockwise to the bottom and locked, so that the variable pump 2 outputs stable hydraulic power. The power is transmitted to the hydraulic equipment through a pipeline (comprising the hydraulic equipment) connected with the power taking hydraulic system, and the emergency rescue work can be carried out only by operating the equipment. According to different rescue scenes, different tools can be replaced through the quick-change power-taking interface.

When rescue work is carried out, different hydraulic equipment needs different hydraulic power inputs, the inputs are stable, and the hydraulic power is realized by controlling the throttle by a driver so as to control the rotating speed of an engine. At this time, if the driver is allowed to control the accelerator in the cab for a long time to maintain the stable engine speed, the driver has great difficulty and occupies human resources. Thus, a throttle switch 36 is installed in the cab, and a manual throttle 37 combination is installed at a suitable position outside the vehicle. By operating the accelerator switch 36, the accelerator pedal is deactivated, and the accelerator operation is transferred to the manual accelerator 37 combination. The driver can then leave the cab and then, depending on the requirements of the hydraulic equipment, operate the manual throttle 37 combination to bring the engine to the corresponding rotational speed. The manual throttle 37 combination may automatically stabilize to maintain this rotational speed, resulting in a stable hydraulic power output.

The vehicle can realize free steering in the land running process of the vehicle, and can provide power input for a propeller propulsion system additionally arranged at the tail part of the vehicle body, so that the water running speed of the all-terrain vehicle is improved, and the water performance is improved; and can also provide stable power input for hydraulic conventional rescue tools such as hydraulic crushing pick, hydraulic circular saw, hydraulic pump and the like through the quick-change hydraulic power take-off interface additionally arranged on the vehicle body, change the vehicle into a movable hydraulic power output platform, accelerate the rescue process and reduce the rescue difficulty. The structure is reasonable and reliable, the operation is simple, and the use is convenient.

Wherein the first oil tank interface 39 is arranged on one side of the tank 38 in a communicating manner; the oil return and pressure relief valve combination 43 is respectively communicated with the first oil tank interface 39, the oil return pipe combination 9, the fourth rubber pipe 18 and the third oil return pipe 31; the second tank port 40 communicates with the tank body 38 and with the second rubber tube 16; the third oil tank port 41 is communicated with the tank body 38 and is communicated with the first rubber tube 15; the hydraulic filler is disposed in communication with one side of the housing 38.

Secondly, two said water pushing electromagnetic valves 45 are set up on one side of the said water pushing force valve block main body 44 separately, and connect with said hydraulic mode change-over switch 35 separately; the two power take-off solenoid valves 46 are respectively arranged at one side of the water pushing power take-off valve block main body 44 and are respectively connected with the hydraulic mode change-over switch 35; the first main pipe port 47 communicates with the water push-pull valve block main body 44 and with the fifth combination oil pipe 23; the second main conduit interface 48 communicates with the water push-pull valve block body 44 and with the seventh combination oil conduit 25; the first water push pipeline interface 49 is communicated with the water push force valve block main body 44 and is communicated with the ninth combined oil pipe 27; the second water push line interface 50 communicates with the water push power valve block body 44 and with the sixth combination oil line 24; the first power take-off line interface 51 communicates with the water push-off valve block body 44 and with the eighth combination oil line 26; the second power take-off line interface 52 communicates with the water push-off valve block body 44 and with the tenth combination oil line 28.

Meanwhile, the third main pipe interface 54 communicates with the first switching valve group main body 53 and communicates with the fifth combination oil pipe 23; the fourth main line interface 55 communicates with the first switching valve block main body 53 and with the third combination oil pipe 21; the fifth manifold interface 56 communicates with the first switching valve block body 53 and with the second combined oil pipe 20; the first switching solenoid valve 57 is provided at one side of the first switching valve group main body 53 and is connected to the hydraulic mode switching switch 35.

In addition, the seventh manifold port 60 communicates with the second switching valve block body 58 and with the seventh combination oil pipe 25; the eighth manifold interface 61 communicates with the second switch valve block body 58 and with the first combination oil pipe 19; the second switching solenoid valve 62 is provided on the second switching valve group body 58 side and connected to the hydraulic mode switching switch 35.

The multifunctional hydraulic system of the all-terrain vehicle is selected to be in a land driving mode during initial assembly, namely, the hydraulic system only has a steering function. The state is described as: the hydraulic mode switch 35 is in a land driving mode, the accelerator switch 36 is connected with a foot accelerator, so that a driver can conveniently operate the hydraulic mode switch in a cab, the manual accelerator 37 does not play a role, the hydraulic solenoid valve 45 and the power solenoid valve 46 on the hydraulic power valve block combination 12 are in a closed state, the switching solenoid valve on the first switching valve group 7 is in an open state, and the third main pipeline interface 54 does not have hydraulic output; the switching solenoid valve on the second switching valve group 8 is in an open state, and the seventh main line port 60 does not have hydraulic pressure output. The actual operating state of the hydraulic system is shown in fig. 9. With the steering motor 1 as an origin, one hydraulic interface is connected with one end of a first combined oil pipe 19, and the other end of the first combined oil pipe 19 is connected with an eighth main pipeline interface 61 of the second switching valve group 8; the fourth combined oil pipe 22 is installed between the second switching valve group 8 and the variable pump 2, and one end is connected to the sixth main pipeline interface 59 of the second switching valve group 8, and the other end is connected to the variable pump 2. The other hydraulic interface of the steering motor 1 is connected with one end of a second combined oil pipe 20, the other end of the second combined oil pipe 20 is connected with a fifth main pipeline interface 56 of the first switching valve group 7, a third combined oil pipe 21 is arranged between the first switching valve group 7 and the variable pump 2, one end of the third combined oil pipe 21 is connected with a fourth main pipeline interface 55 of the first switching valve group 7, and the other end of the third combined oil pipe is connected with the variable pump 2. The bottom of the closed oil tank 3 is provided with an oil pipe connecting point besides a hydraulic oil filling port 42, wherein a second oil tank connector 40 is connected with the variable pump 2 through a second rubber pipe 16, and a third oil tank connector 41 is connected with one connector of the pipeline filter 6 through a first rubber pipe 15; the first oil tank interface 39 is connected with an oil return relief valve assembly 43, the other end of the oil return relief valve assembly 43 is connected with an oil return pipe assembly 9, and the other end of the oil return pipe assembly 9 is arranged on the steering motor 1. The oil return and pressure relief valve assembly 43 is provided with a fourth rubber pipe 18, and the upper part of the fourth rubber pipe 18 is connected with a cooling water tank; at the other joint end of the pipeline filter 6, a third rubber pipe 17 is arranged, and the upper part of the third rubber pipe 17 is also connected with the cooling water tank. A steering mechanism assembly 10 for controlling land steering is mounted on the rear side of the lower portion of the variable pump 2, and a steering cable 11 is mounted on the steering mechanism assembly 10, and the other end is connected to a steering wheel mechanism.

The parts are combined into a loop of a hydraulic system during land driving, and when the steering wheel is operated to rotate left and right, the steering inhaul cable 11 is driven to move, so that hydraulic oil in the variable pump 2 is controlled to flow forward or backward, and the steering motor 1 is driven to rotate forward or backward, and the steering of the vehicle is realized. When the hydraulic oil is excessive, the pressure can be relieved through the oil return pipe combination 9.

After the water pushing and power taking functions are added to the all-terrain vehicle, the hydraulic system is correspondingly improved. That is, on the basis of the illustration of fig. 9, relevant parts are added, and the actual assembly state of the hydraulic system is illustrated in fig. 10.

Both ends of the fifth combined oil pipe 23 are respectively assembled on the third main pipeline interface 54 of the first switching valve group 7 and the first main pipeline interface 47 of the water pushing force valve block combination 12; two ends of the seventh combined oil pipe 25 are respectively assembled on a seventh main pipeline interface 60 of the second switching valve group 8 and a second main pipeline interface 48 of the water pushing force valve block combination 12; one end of the sixth combined oil pipe 24 is assembled on the second water pushing pipeline interface 50 of the water pushing force valve block combination 12, and the other end is connected with the second water pushing motor oil pipe 14; the other end of the second water pushing motor oil pipe 14 is connected with one interface of the side edge of the water pushing motor 4; one end of the ninth combined oil pipe 27 is connected with a first water pushing pipeline interface 49 of the water pushing force valve block combination 12, and the other end of the ninth combined oil pipe is connected with the first water pushing motor oil pipe 13; the other end of the first water pushing motor oil pipe 13 is connected with the other side surface interface of the water pushing motor 4; the lower end of the third oil return pipe 31 is connected with an oil return pressure relief valve combination 43, one of the three-way joints at the upper end is connected with the first oil return pipe 29, and the other is connected with the second oil return pipe 30; the other end of the first oil return pipe 29 is connected with an oil return interface at the upper part of the water push motor 4, and the other end of the second oil return pipe 30 is provided with a pressure relief interface 32 which can be connected with an oil pipe of external rescue equipment. The lower end of the eighth combined oil pipe 26 is connected with a first power taking pipeline interface 51 of the water pushing power taking valve block combination 12, and the upper end of the eighth combined oil pipe is provided with a second hydraulic power taking interface 34; the tenth combined oil pipe 28 is connected at its lower end to the second power take-off line interface 52 of the water thrust valve block combination 12, and is provided at its upper end with the first hydraulic power take-off interface 33. The first hydraulic power take-off interface 33 and the second hydraulic power take-off interface 34 can be connected with an oil pipe externally connected with rescue equipment.

After the parts are assembled, a hydraulic system meeting the functions of water pushing and power taking can be formed on the basis of the hydraulic system during land running.

When the vehicle needs to travel on water, the transmission is operated in a neutral state, the engine is started, and the hydraulic mode switching switch 35 is switched clockwise to the water travel mode. At this time, the switching solenoid valve on the first switching valve group 7 and the switching solenoid valve on the second switching valve group 8 are closed, the water push solenoid valve 45 on the water push-out force valve block combination 12 is opened, and the force solenoid valve 46 is still in a closed state. Thus, the hydraulic oil cannot flow through the steering motor 1, but flows from the third main line port 54 on the first switching valve group 7 and the seventh main line port 60 on the second switching valve group 8 to the water thrust valve block combination 12 through the fifth combination oil pipe 23 and the seventh combination oil pipe 25; since the push solenoid valve 45 on the push valve block assembly 12 is open, the first manifold port 47 and the first push line port 49 on the valve block assembly form a passageway, and the second manifold port 48 and the second push line port 50 form a passageway. Thus, hydraulic oil can flow out from the first water push pipeline interface 49, through the ninth combined oil pipe 27 and the first water push motor oil pipe 13, and to the water push motor 4; likewise, hydraulic oil may also flow out of the second water push line interface 50, through the sixth combination oil line 24 and the second water push motor oil line 14, and to the water push motor 4; thus, the system constitutes a hydraulic circuit. For pressure relief, one end of the third oil return pipe 31 is mounted on the oil return relief valve assembly 43, and the other end is connected to one ends of the first oil return pipe 29 and the second oil return pipe 30 respectively through three-way joints. The other end of the first oil return pipe 29 is connected with an interface at the upper part of the water pushing motor 4 to release pressure for the water pushing motor 4; the other end of the oil pipe B is provided with a pressure relief interface 32 for connecting a pressure relief oil pipe of the emergency rescue equipment, and the pressure relief interface is used for relieving the pressure of the hydraulic equipment.

According to the water driving requirement of the whole vehicle, the steering wheel is operated to rotate clockwise to the limit, the hydraulic oil can be controlled to flow forward, the water pushing motor 4 drives the propeller combination 5 to rotate forward, and the vehicle moves forward; the steering wheel is operated to rotate anticlockwise to the limit, the reverse flow of hydraulic oil can be controlled, the water pushing motor 4 drives the propeller combination 5 to rotate reversely, and the vehicle retreats. The speed is controlled by stepping on the throttle.

When the vehicle requires hydraulic power to provide power input to the emergency rescue device, the transmission is operated in a neutral state to switch the hydraulic mode changeover switch 35 counterclockwise to the hydraulic power take-off mode. At this time, the switching solenoid valve on the first switching valve group 7 and the switching solenoid valve on the second switching valve group 8 are closed, the power solenoid valve 46 on the water push power valve block combination 12 is opened, and the water push solenoid valve 45 is still in a closed state. Thus, the hydraulic oil cannot flow through the steering motor 1, but flows from the third main line port 54 on the first switching valve group 7 and the seventh main line port 60 on the second switching valve group 8 to the water thrust valve block combination 12 through the fifth combination oil pipe 23 and the seventh combination oil pipe 25; with the power take-off solenoid valve 46 on the water push power valve block assembly 12 open, the first and second main line interfaces 47, 52 on the valve block assembly form a passageway, while the second main line interface 48 and the first power take-off line interface 51 form a passageway. Thus, hydraulic oil can flow out from the first power take-off pipeline interface 51 and flow to the hydraulic power take-off port B through the eighth combined oil pipe 26; likewise, hydraulic oil may also flow out of the second power take-off line connection 52 through the tenth combination oil line 28 to the hydraulic power take-off port a. When the hydraulic power take-off oil port B and the hydraulic power take-off oil port A are externally connected with emergency rescue equipment, a hydraulic system is formed. Since the working state of the emergency rescue equipment is fixed, the reverse flow of the hydraulic oil is not considered.

In use, the transmission is operated in a neutral state, the engine is started, and the hydraulic mode switch 35 is switched to the hydraulic power take-off mode anticlockwise. The throttle switch 36 is pressed down to switch the throttle operation function to the manual throttle 37, and the selected hydraulic device is connected. When the engine is started and the steering wheel is operated clockwise to the limit, hydraulic oil can flow through the hydraulic equipment according to the set oil way to provide power input for the hydraulic equipment, and a loop is formed. To achieve a stable hydraulic oil output, the driver may leave the cab to operate the manual throttle 37 to achieve the engine speed required by the hydraulic device and to fix the manual throttle 37.

According to different operation scenes, the hydraulic rescue equipment can be replaced, and replacement can be completed only by disassembling from the hydraulic power taking oil port A and the hydraulic power taking oil port B. All the combined oil pipes can be designed in a segmented mode according to actual conditions.

The foregoing disclosure is only illustrative of one or more preferred embodiments of the present application and is not intended to limit the scope of the claims hereof, as it is to be understood by those skilled in the art that all or part of the process of implementing the described embodiment may be practiced otherwise than as specifically described and illustrated by the appended claims.

Claims (5)

1. A multifunctional hydraulic system of an all-terrain vehicle is characterized in that,

the hydraulic power steering system comprises a steering motor, a variable pump, a closed oil tank, a water pushing motor, a propeller combination, a pipeline filter, a first switching valve bank, a second switching valve bank, an oil return pipe combination, a steering mechanism combination, two steering cables, a water pushing force taking valve block combination, a first water pushing motor oil pipe, a second water pushing motor oil pipe, a first rubber pipe, a second rubber pipe, a third rubber pipe, a fourth rubber pipe, a first combined oil pipe, a second combined oil pipe, a third combined oil pipe, a fourth combined oil pipe, a fifth combined oil pipe, a sixth combined oil pipe, a seventh combined oil pipe, an eighth combined oil pipe, a ninth combined oil pipe, a tenth combined oil pipe, a first oil return pipe, a second oil return pipe, a third oil return pipe, a pressure relief interface, a first hydraulic force taking interface, a second hydraulic mode switch, an accelerator switch and a manual accelerator;

the first combined oil pipe is communicated with one side of the steering motor; the second switching valve group is arranged on one side of the first combined oil pipe in a communicating way; the fourth combined oil pipe is communicated with one side of the second switching valve group; the variable pump is communicated with one side of the fourth combined oil pipe; the second combined oil pipe is communicated with one side of the steering motor; the first switching valve group is arranged on one side of the second combined oil pipe in a communicating way; the third combined oil pipe is communicated with the first switching valve group and the variable pump; the oil return pipe is arranged at one side of the steering motor in a combined and communicated manner; the closed oil tank is communicated with one side of the oil return pipe assembly; the first rubber pipe is communicated with one side of the closed oil tank; the pipeline filter is communicated with one side of the first rubber pipe; the second rubber pipe is communicated with the closed oil tank and the variable pump; the third rubber pipe is communicated with one side of the pipeline filter; the fourth rubber pipe is communicated with one side of the closed oil tank; the steering mechanism is arranged on one side of the variable pump in a combined way; the two steering inhaul cables are respectively arranged at one side of the steering mechanism combination; the water pushing and pulling force valve block assembly is positioned at one side of the closed oil tank; the water pushing motor is positioned at one side of the closed oil tank; the first water pushing motor oil pipe is communicated with one side of the water pushing motor; the second water pushing motor oil pipe is communicated with one side of the water pushing motor; the propeller combination is arranged at one side of the water pushing motor; the fifth combined oil pipe is communicated with the first switching valve group and is communicated with the water pushing force valve block combination; the seventh combined oil pipe is communicated with the second switching valve group and is communicated with the water pushing force valve block combination; the sixth combined oil pipe is communicated with the water pushing force valve block combination and is communicated with the second water pushing motor oil pipe; the ninth combined oil pipe is communicated with the water pushing force valve block combination and is communicated with the first water pushing motor oil pipe; the third oil return pipe is communicated with one side of the closed oil tank; the first oil return pipe is communicated with the third oil return pipe and is communicated with the water pushing motor; the second oil return pipe is communicated with one side of the third oil return pipe; the pressure relief interface is communicated with one side of the second oil return pipe; the eighth combined oil pipe is communicated with one side of the water pushing and taking valve block; the second hydraulic force-taking interface is communicated with one side of the eighth combined oil pipe; the tenth combined oil pipe is communicated with one side of the water pushing and taking valve block; the first hydraulic force taking interface is communicated with one side of the tenth combined oil pipe; the hydraulic mode change-over switch is positioned at one side of the closed oil tank; the throttle change-over switch is positioned at one side of the hydraulic mode change-over switch; the manual throttle is positioned at one side of the throttle change-over switch.

2. The multi-functional hydraulic system of an ATV of claim 1,

the closed oil tank comprises a tank body, a first oil tank interface, a second oil tank interface, a third oil tank interface, a hydraulic oil filling port and an oil return pressure relief valve combination; the first oil tank interface is communicated with one side of the tank body; the oil return pressure relief valve is respectively communicated with the first oil tank interface, the oil return pipe combination, the fourth rubber pipe and the third oil return pipe; the second oil tank interface is communicated with the tank body and the second rubber pipe; the third oil tank interface is communicated with the tank body and the first rubber pipe; the hydraulic filling port is communicated with one side of the box body.

3. The multi-functional hydraulic system of an ATV of claim 2,

the water pushing force taking valve block combination comprises a water pushing force taking valve block main body, two water pushing electromagnetic valves, two force taking electromagnetic valves, a first main pipeline interface, a second main pipeline interface, a first water pushing pipeline interface, a second water pushing pipeline interface, a first force taking pipeline interface and a second force taking pipeline interface; the two water pushing electromagnetic valves are respectively arranged on one side of the water pushing force valve block main body and are respectively connected with the hydraulic mode change-over switch; the two power taking electromagnetic valves are respectively arranged on one side of the water pushing power taking valve block main body and are respectively connected with the hydraulic mode change-over switch; the first main pipeline interface is communicated with the water pushing force valve block main body and is communicated with the fifth combined oil pipe; the second main pipeline interface is communicated with the water pushing force valve block main body and is communicated with the seventh combined oil pipe; the first water pushing pipeline interface is communicated with the water pushing force valve block main body and is communicated with the ninth combined oil pipe; the second water pushing pipeline interface is communicated with the water pushing force valve block main body and is communicated with the sixth combined oil pipe; the first power taking pipeline interface is communicated with the water pushing power taking valve block main body and is communicated with the eighth combined oil pipe; the second power taking pipeline interface is communicated with the water pushing power taking valve block main body and is communicated with the tenth combined oil pipe.

4. The multi-functional hydraulic system of claim 3, wherein,

the first switching valve group comprises a first switching valve group main body, a third main pipeline interface, a fourth main pipeline interface, a fifth main pipeline interface and a first switching electromagnetic valve; the third main pipeline interface is communicated with the first switching valve group main body and is communicated with the fifth combined oil pipe; the fourth main pipeline interface is communicated with the first switching valve group main body and is communicated with the third combined oil pipe; the fifth main pipeline interface is communicated with the first switching valve group main body and is communicated with the second combined oil pipe; the first switching solenoid valve is arranged on one side of the first switching valve group main body and is connected with the hydraulic mode switching switch.

5. The multi-functional hydraulic system of an ATV of claim 4,

the second switching valve group comprises a second switching valve group main body, a sixth main pipeline interface, a seventh main pipeline interface, an eighth main pipeline interface and a second switching electromagnetic valve; the sixth main pipeline interface is communicated with the second switching valve group main body and is communicated with the fourth combined oil pipe; the seventh main pipeline interface is communicated with the second switching valve group main body and is communicated with the seventh combined oil pipe; the eighth main pipeline interface is communicated with the second switching valve group main body and is communicated with the first combined oil pipe; the second switching electromagnetic valve is arranged on one side of the second switching valve group main body and is connected with the hydraulic mode switching switch.