阅读说明：本技术 一种越野车散热器自动清洗系统及方法 (Automatic cleaning system and method for off-road vehicle radiator ) 是由 尹强 刘波 赵岩 尤洪涛 匡维 于 2021-09-28 设计创作，主要内容包括：本发明公开了一种越野车散热器自动清洗系统及方法,本车载系统包括转换轮系、电磁伸缩阀、机械风扇、洗涤壶、风压传感器和水泵,转换轮系与发动机传动连接,用于将动力传导至机械风扇,转换轮系内设有正向齿轮组和反向齿轮组,两个齿轮组交替使用,可改变转换轮系向机械风扇输出的动力转向,从而实现更好的清理效果,而洗涤壶内储存有洗涤剂溶液,在机械风扇工作前,通过水泵将洗涤剂溶液通过水管泵送至端部的喷头上,高压水流最终喷洒至散热器上,实现对其上灰尘的润湿和清洗,风压传感器可检测散热器附近的风压大小,帮助车内人员判断散热器是否附着了过多灰尘和堵塞,解决了车辆散热器清洗效果差和无法实时监测散热器性能的问题。(The invention discloses an automatic cleaning system and a method for a radiator of an off-road vehicle, wherein the on-road vehicle system comprises a conversion wheel train, an electromagnetic expansion valve, a mechanical fan, a washing kettle, a wind pressure sensor and a water pump, the conversion wheel train is in transmission connection with an engine and is used for transmitting power to the mechanical fan, a forward gear train and a reverse gear train are arranged in the conversion wheel train, the two gear trains are alternately used, and the power steering output from the conversion wheel train to the mechanical fan can be changed, so that a better cleaning effect is realized, a detergent solution is stored in the washing kettle, before the mechanical fan works, the detergent solution is pumped to a spray head at the end part through a water pipe by the water pump, high-pressure water flow is finally sprayed to the radiator to realize the wetting and cleaning of dust on the radiator, the wind pressure sensor can detect the wind pressure near the radiator and help personnel in the vehicle to judge whether excessive dust and blockage are attached to the radiator, the problem of vehicle radiator cleaning performance poor and unable real-time supervision radiator performance is solved.)

1. An off-road vehicle radiator self-cleaning system, comprising:

the automatic cleaning device comprises a mechanical fan (3), an electromagnetic telescopic valve (13), a washing kettle (15), a water pump (16) and a conversion gear train (20), wherein cleaning solution is stored in the washing kettle (15), and the water pump (16) is communicated with the washing kettle (15) and used for pumping the cleaning solution to the radiator (1);

conversion train (20) includes first transmission shaft (5), secondary drive axle (7) and third transmission shaft (9), the axis parallel arrangement of three be equipped with first gear (4) and second gear (6) on first transmission shaft (7), first transmission shaft (5) with mechanical fan (3) coupling, for the power output shaft of conversion train (20), be equipped with third gear (10) and fifth gear (14) on secondary drive axle (7), secondary drive axle (7) and engine coupling, for the input shaft of conversion train power, be equipped with fourth gear (11) on third transmission shaft (9) secondary gear (6) with fifth gear (14) meshing, fourth gear (11) with first gear (4) meshing, electromagnetic expansion valve (13) are used for promoting secondary drive axle (7) are along axial slip, so that the third gear (10) and the fourth gear (11) are engaged and the second gear (6) and the fifth gear (14) are disengaged.

2. An automatic radiator cleaning system for an off-road vehicle according to claim 1, comprising a shifting sheet (12), wherein the shifting sheet (12) is fixedly installed on the electromagnetic expansion valve (13), an annular groove is formed on the second transmission shaft (7), and the shifting sheet (12) is in contact connection with the annular groove and used for pushing the second transmission shaft (7) to slide axially.

3. An automatic radiator cleaning system for an off-road vehicle according to claim 2, comprising a wind pressure sensor (17) and a controller (18), wherein the controller (18) is in signal communication with the electromagnetic expansion valve (13), the water pump (16) and the wind pressure sensor (17) respectively, and is used for controlling the on/off of the water pump (16) and controlling the expansion and contraction of the electromagnetic expansion valve (13), and the wind pressure sensor (17) is arranged between the radiator (1) and the mechanical fan (3) and is used for detecting the wind pressure and sending the value to the controller (18).

4. An automatic radiator cleaning system for an off-road vehicle according to any one of claims 1-3, comprising a spray head and a water pipe, the water pipe is used for communicating the water pump (16) and the spray head, and the spray head sprays the cleaning solution on the radiator (1).

5. An off-road vehicle radiator automatic cleaning system according to claim 3, characterized by, including a wind guard cover (2), the radiator (1) is located in one end of the wind guard cover (2), the other end is located to mechanical fan (3), the wind guard cover (2) is used for increasing the wind pressure.

6. An automatic radiator cleaning system for an off-road vehicle according to claim 3, characterized by comprising a connecting disc (8) arranged at the joint of the second transmission shaft (7) and the engine for preventing dust and sundries from entering.

7. An off-road vehicle radiator automatic cleaning method, which is realized by applying the off-road vehicle radiator automatic cleaning system of any one of claims 1-6, and comprises the following steps:

s100, detecting whether the radiator is blocked or not, detecting the air pressure at the radiator by an air pressure sensor, sending a detection value to a controller, comparing the detected air pressure value with a preset value by the controller, and sending a comparison result to a console;

s200, cleaning the radiator, issuing a cleaning start instruction to the controller by an operator in the vehicle through the console, sending a signal to start the water pump after the controller receives the instruction, pumping the detergent solution in the washing kettle to the water pipe by the water pump, guiding the detergent solution to the radiator by the water pipe, spraying the detergent solution on the radiator through the spray head, and wetting and washing dust and sundries on the radiator;

s300, adjusting a mechanical fan to rotate reversely to clean the radiator, issuing a steering switching instruction to a controller through a console by a person in the vehicle, sending an electric signal to an electromagnetic expansion valve by the controller, retracting the electromagnetic expansion valve to drive a shifting sheet to contact and push an annular groove, pushing a second transmission shaft to separate a second gear from a fifth gear, meshing a third gear with a fourth gear, sending the electric signal to a water pump by the controller after adjustment to stop working, inputting power through the second transmission shaft when a vehicle engine starts to work, driving the first gear to rotate through the fourth gear, finally driving the mechanical fan to rotate reversely through the first transmission shaft, and making wind pressure on one side of the radiator by the mechanical fan to clean the radiator;

s400, adjusting the mechanical fan to rotate forwards to clean the radiator, after the mechanical fan rotates backwards to clean the radiator, stopping the engine, issuing a command of switching and steering to the controller through the console by people in the vehicle, sending an electric signal to the electromagnetic expansion valve by the controller, extending the electromagnetic expansion valve, driving the shifting piece to contact and push the annular groove, enabling the second transmission shaft to slide along the axial direction, disengaging the fourth gear from the third gear, engaging the second gear with the fifth gear, restarting the engine to drive the second transmission shaft to rotate, transmitting the fifth gear to the second gear, finally driving the mechanical fan to rotate forwards through the first transmission shaft, and cleaning the radiator.

Technical Field

The invention relates to the technical field of automatic cleaning of vehicle radiators, in particular to an automatic cleaning system and method for a radiator of an off-road vehicle.

Background

For military use cross-country engine generally uses the internal-combustion engine, the fuel that the engine used has some conversion to become the heat, consequently need dispel the heat to the engine, guarantee that it works at appropriate temperature, the radiator is used for cooling down the engine, for military use cross-country vehicle is because of self characteristics, often travel in the relatively abominable operating mode of environment, the radiator is often pasted dust or adhesion debris, lead to engine radiator heat dispersion not enough, influence engine dynamic nature, design the device of an automatic clearance radiator, can solve cross-country vehicle and block up the problem of radiator easily in complicated environment.

The prior art has the following disadvantages: (1) when the heat dissipation performance of the radiator is influenced by dust, the radiator generally needs to be disassembled and manually washed by a high-pressure water gun, so that the method wastes time and is complicated in operation process; (2) the automatic cleaning device is adopted, and the cleaning effect is difficult to ensure because the cleaning wind direction or the sweeping action is fixed.

Disclosure of Invention

Aiming at the defects or the improvement requirements of the prior art, the invention provides an automatic cleaning system and a method for a radiator of an off-road vehicle, the cleaning system comprises a conversion gear train, an electromagnetic expansion valve, a mechanical fan, a wash pot, a wind pressure sensor and a water pump, the conversion gear train is in transmission connection with an engine and is used for transmitting power to the mechanical fan, a forward gear train and a reverse gear train are arranged in the conversion gear train, the two gear trains are alternately used, the power steering output from the conversion gear train to the mechanical fan can be changed, so that better cleaning effect is realized, detergent solution is stored in the wash pot, before the mechanical fan works, the detergent solution is pumped to a spray head at the end part through a water pipe by the water pump, high-pressure water flow is finally sprayed to the radiator, the wetting and the cleaning of dust on the radiator are realized, and the wind pressure near the radiator can be detected by the wind pressure sensor, the automobile radiator cleaning device helps an automobile worker to judge whether excessive dust and blockage are attached to the radiator, and solves the problems that the automobile radiator cleaning effect is poor and the performance of the radiator cannot be monitored in real time.

To achieve the above object, according to one aspect of the present invention, there is provided an off-road vehicle radiator automatic cleaning system, comprising:

the device comprises a mechanical fan, an electromagnetic expansion valve, a washing kettle, a water pump and a conversion wheel train, wherein cleaning solution is stored in the washing kettle, and the water pump is communicated with the washing kettle and used for pumping the cleaning solution to the radiator;

the conversion train includes first transmission shaft, secondary drive axle and third transmission shaft, three's axis parallel arrangement be equipped with first gear and second gear in the first transmission shaft, first transmission shaft with mechanical fan coupling, for the power output shaft of conversion train, be equipped with third gear and fifth gear on the secondary drive axle, secondary drive axle and engine coupling, do the input shaft of conversion train power, be equipped with the fourth gear on the third transmission shaft the second gear with fifth gear engagement, the fourth gear with first gear engagement, the electromagnetic expansion valve is used for promoting the secondary drive axle is along axial slip, makes the third gear with fourth gear engagement, and the second gear with fifth gear disengages.

Further, the electromagnetic expansion valve comprises a shifting sheet, the shifting sheet is fixedly installed on the electromagnetic expansion valve, an annular groove is formed in the second transmission shaft, and the shifting sheet is in contact connection with the annular groove and used for pushing the second transmission shaft to slide along the axial direction.

Further, including wind pressure sensor and controller, the controller respectively with the flexible valve of electromagnetism the water pump with wind pressure sensor signal intercommunication is used for control the water pump switch is flexible with the flexible valve of control electromagnetism, wind pressure sensor locates the radiator with between the mechanical fan, be used for detecting the wind pressure size and with numerical value send to the controller.

Further, the cleaning device comprises a spray head and a water pipe, wherein the water pipe is used for communicating the water pump and the spray head, and the spray head sprays the cleaning solution onto the radiator.

Further, including protecting the fan housing, the radiator is located protect the one end of fan housing, the other end is located to mechanical fan, protect the fan housing and be used for increasing the wind pressure.

And the connecting disc is arranged at the joint of the second transmission shaft and the engine shaft and used for preventing dust and sundries from entering.

According to another aspect of the invention, a use method of the automatic cleaning system for the radiator of the off-road vehicle is provided, which comprises the following steps:

s100, whether the radiator is blocked or not is detected, the wind pressure sensor detects the wind pressure at the radiator and sends the detected value to the controller, and the controller compares the detected wind pressure value with a preset value and sends the comparison result to the console.

S200, a radiator is cleaned, a person in a vehicle issues a cleaning starting instruction to a controller through an operation control platform, the controller sends a signal to start a water pump after receiving the instruction, the water pump pumps detergent solution in a washing kettle to a water pipe, the water pipe guides the detergent solution to the radiator, the detergent solution is sprayed on the radiator through a spray head, and dust and sundries on the radiator are wetted and washed.

S300, adjusting the mechanical fan to reversely rotate to clean the radiator, enabling people in the automobile to issue a command of switching steering to the controller through the console, sending an electric signal to the electromagnetic expansion valve by the controller, enabling the electromagnetic expansion valve to retract, driving the shifting piece to contact and push the annular groove, pushing the second transmission shaft, enabling the second gear and the fifth gear to be separated, enabling the third gear and the fourth gear to be meshed, sending the electric signal to the water pump by the controller after adjustment is finished, enabling the water pump to stop working, then enabling the vehicle engine to start working, inputting power through the second transmission shaft, driving the first gear to rotate through the fourth gear, finally driving the mechanical fan to reversely rotate through the first transmission shaft, manufacturing wind pressure on one side of the radiator by the mechanical fan, and cleaning the radiator.

S400, adjusting the mechanical fan to rotate forwards to clean the radiator, after the mechanical fan rotates backwards to clean the radiator, stopping the engine, issuing a command of switching and steering to the controller through the console by people in the vehicle, sending an electric signal to the electromagnetic expansion valve by the controller, extending the electromagnetic expansion valve, driving the shifting piece to contact and push the annular groove, enabling the second transmission shaft to slide along the axial direction, disengaging the fourth gear from the third gear, engaging the second gear with the fifth gear, restarting the engine to drive the second transmission shaft to rotate, transmitting the fifth gear to the second gear, finally driving the mechanical fan to rotate forwards through the first transmission shaft, and cleaning the radiator.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1. the invention provides an automatic cleaning system for a radiator of a cross-country vehicle, which comprises a conversion wheel train, an electromagnetic expansion valve, a mechanical fan, a wash pot, a wind pressure sensor and a water pump, wherein the conversion wheel train is in transmission connection with an engine and is used for transmitting power to the mechanical fan, a forward gear train and a reverse gear train are arranged in the conversion wheel train, the two gear trains are alternately used, and the power steering output from the conversion wheel train to the mechanical fan can be changed, so that a better cleaning effect is realized, a detergent solution is stored in the wash pot, before the mechanical fan works, the detergent solution is pumped to a spray head at the end part through a water pipe by the water pump, high-pressure water flow is finally sprayed onto the radiator to realize the wetting and cleaning of dust on the radiator, the wind pressure sensor can detect the wind pressure near the radiator and help personnel in the vehicle to judge whether the radiator is adhered with excessive dust and blocked, the problem of vehicle radiator cleaning performance poor and unable real-time supervision radiator performance is solved.

2. The invention provides an automatic cleaning system for a radiator of a cross-country vehicle, which adopts a conversion gear train comprising a first transmission shaft, a second transmission shaft and a third transmission shaft, wherein the axes of the first transmission shaft, the second transmission shaft and the third transmission shaft are arranged in parallel, the first transmission shaft is provided with a first gear and a second gear, the first transmission shaft is connected with a mechanical fan and is an output shaft of power, the second transmission shaft is provided with a third gear and a fifth gear, the second transmission shaft is connected with an engine shaft and is an input shaft of the power of the conversion gear train, when the second gear is meshed with the fifth gear, the first transmission shaft outputs forward rotation to the mechanical fan, when the second transmission shaft slides along the axial direction, the second gear is separated from the fifth gear, the third gear is meshed with the fourth gear, and the fourth gear is meshed with the first gear, therefore, the power of the second transmission shaft is transmitted twice, and finally the first transmission shaft drives the mechanical fan to rotate reversely, the switching of the wind direction of the cleaning radiator is realized.

3. The invention provides an automatic cleaning system for a radiator of a cross-country vehicle, which comprises a forward gear set and a reverse gear set in a conversion gear train, wherein an annular groove is arranged on a second transmission shaft serving as an input shaft of power, a shifting sheet is fixed at the end part of an electromagnetic telescopic valve and is contacted with the side surface of the annular groove, and the shifting sheet can shift the second transmission shaft to slide along the axial direction under the driving of the electromagnetic telescopic valve, so that the switching between the forward gear set and the reverse gear set is realized, and the function of controlling the forward or reverse rotation of a mechanical fan is achieved.

Drawings

FIG. 1 is a schematic structural diagram of an automatic cleaning system for a radiator of an off-road vehicle according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a switching wheel train of an automatic cleaning system for a radiator of an off-road vehicle according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of an automatic radiator cleaning system for an off-road vehicle according to an embodiment of the invention;

FIG. 4 is a diagram of a method for using an automatic radiator cleaning system for an off-road vehicle according to an embodiment of the invention.

In all the figures, the same reference numerals denote the same features, in particular: the device comprises a radiator 1, a fan cover 2, a mechanical fan 3, a first gear 4, a first transmission shaft 5, a second gear 6, a second transmission shaft 7, a connecting disc 8, a third transmission shaft 9, a third gear 10, a fourth gear 11, a shifting sheet 12, an electromagnetic expansion valve 13, a fifth gear 14, a washing kettle 15, a water pump 16, a wind pressure sensor 17, a controller 18, a console 19 and a conversion wheel train 20.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-3, the present invention provides an automatic cleaning system for a radiator of an off-road vehicle, comprising a radiator 1, a wind shield 2, a mechanical fan 3, an electromagnetic expansion valve 13, a water pump 16, a wind pressure sensor 17 and a switching wheel train 20, wherein one end of the wind shield 2 is fixed on the radiator 1 in a cage manner, the mechanical fan 3 is fixed at the other end of the wind shield 2, when dust accumulates on the radiator 1, the mechanical fan 3 is started to blow an airflow, the airflow forms a wind pressure along an air supply channel formed in the wind shield 2 at one side of the radiator 1, so as to clean the radiator 1, the switching wheel train 20 is in transmission connection with the mechanical fan 3, so as to provide power for the mechanical fan, because the cleaning effect of single-direction air blowing is limited, the output rotation direction of the switching wheel train 20 can be regulated and controlled by the electromagnetic expansion valve 13, so as to realize the forward and reverse rotation of the mechanical fan 3, and better clean the radiator 1, in order to prevent stains from having strong adhesion, the automobile radiator cleaning device is further provided with a water pump 16 and an air pressure sensor 17, the water pump is used for spraying water flow to the radiator 1 to enhance the cleaning effect, the air pressure sensor 17 is used for sensing the air pressure, the automatic monitoring function is achieved, and the problems that the automobile radiator cleaning effect is poor and the performance of the radiator cannot be monitored in real time are solved.

As shown in fig. 1 and 2, the conversion wheel train 20 includes a first gear 4, a first transmission shaft 5, a second gear 6, a second transmission shaft 7, a connecting plate 8, a third transmission shaft 9, a third gear 10, a fourth gear 11 and a fifth gear 14, wherein the second transmission shaft 7 is connected with an engine output end for transmitting power into the conversion wheel train 20, the connecting plate 8 is arranged at the connection position of the second transmission shaft 7 and the engine output end, the connecting plate 8 is used for sealing and preventing dust from entering, the second transmission shaft 7 is further provided with the third gear 10 and the fifth gear 14 for respectively realizing reverse rotation and positive rotation power transmission, further, the first transmission shaft 5 is arranged in parallel with the second transmission shaft 7, the end part of the first transmission shaft 5 is coupled with the mechanical fan 3 for driving the mechanical fan 3 to rotate, the first gear 4 and the second gear 6 are arranged on the first transmission shaft 5 along the axial line, wherein, the second gear 6 is engaged with the fifth gear 14 and is used for outputting power to the first transmission shaft 5, the second gear 6 is a driving wheel for the first transmission shaft 5 to rotate, thereby driving the mechanical fan 3 to rotate forward, further, a third transmission shaft 9 is further arranged between the first transmission shaft 5 and the second transmission shaft 7, the third transmission shaft 9 is parallel to the axes of the first transmission shaft and the second transmission shaft, a fourth gear 11 is arranged on the third transmission shaft 9, the gear and the first gear 4 keep engaged, when the rotation direction of the mechanical fan 3 needs to be switched, the second transmission shaft 7 slides along the axial direction, so that the fifth gear 14 and the second gear 6 are disengaged, meanwhile, the third gear 10 in idle rotation slides to be engaged with the fourth gear 11, at this time, the third gear 10 drives the fourth gear 11 to rotate, the fourth gear 11 drives the first gear 4 to rotate, at this time, the first gear 4 is a driving wheel for driving the first transmission shaft 5 to rotate, compared with the case that the second gear 6 is used as a driving wheel, the rotation direction of the first gear 4 is opposite to that of the second gear, so that the mechanical fan 3 can be driven to rotate reversely, the second gear 6 and the fifth gear 14 form a forward gear set, the first gear 4, the third gear 10 and the fourth gear 11 form a reverse gear set, and the wind direction of the mechanical fan 3 can be changed by alternately using forward and reverse transmission of the two gear sets, so that the better cleaning effect on the radiator 1 is achieved.

Further, as shown in fig. 2 and fig. 3, the poking piece 12 and the electromagnetic expansion valve 13 are used for driving the second transmission shaft 7 to slide axially, specifically, the electromagnetic expansion valve 13 is in signal communication with the controller 18 and can expand and contract under an electrical signal of the controller 18, the poking piece 12 is fixed at an end of the electronic expansion valve 13, further, an annular groove is formed in the second transmission shaft 7, preferably, the annular groove is formed between the third gear 10 and the fifth gear 14, the poking piece 12 is in contact with a side wall of the annular groove, and the poking piece 12 can push two opposite side walls of the annular groove under the driving of the electromagnetic expansion valve 13, so as to push the second transmission shaft 7 to slide axially, thereby achieving the purpose of controlling the first transmission shaft 5 and the mechanical fan 3 to rotate through the controller 18.

Further, as shown in fig. 2 and 3, the cleaning system further comprises a washing kettle 15, a water pump 16, a wind pressure sensor 17 and a console 19, wherein the washing kettle 15 stores detergent solution, the water pump 16 pumps the detergent solution in the washing kettle 15 to the radiator 1, and the dust and impurities on the surface of the washing kettle 1 are wetted and cleaned by spraying water under high pressure, preferably, the water pump 16 pumps the detergent solution through a water pipe, and a spray head is installed at the end of the water pipe to improve cleaning wetting efficiency, further, the water pump 16 is in signal communication with the controller 18, the controller 18 sends an on/off signal to control the on/off of the water pump 16, further, the wind pressure sensor 17 is in signal communication with the controller 18, the wind pressure sensor 17 is arranged between the radiator 1 and the mechanical fan to sense the size of the radiator 1 and transmit a data signal to the wind pressure controller 18, the controller 18 can compare the detection value with a preset value, and transmit a comparison result to the control platform 19, the control platform 19 is in signal communication with the controller 18 and can receive air pressure information, and personnel in the vehicle can control the water pump 16 and the electromagnetic expansion valve 13 through the control platform 19 to realize monitoring and automatic cleaning of the state of the radiator 1.

As shown in fig. 1-4, according to another aspect of the present invention, the present invention provides a method for using the automatic cleaning system for radiator of off-road vehicle, specifically comprising:

s100, detecting whether the radiator is blocked;

specifically, the wind pressure sensor 17 detects the wind pressure at the radiator 1 and sends the detected value to the controller 18, and the controller 18 compares the detected wind pressure value with a preset value and sends the comparison result to the console 19;

s200, cleaning the radiator;

specifically, a person in the vehicle issues a command for starting cleaning to the controller 18 through the console 19, after receiving the command, the controller 18 sends a signal to start the water pump 16, the water pump 1 pumps the detergent solution in the washing kettle 15 to the water pipe, the water pipe guides the detergent solution to the radiator 1, and then the detergent solution is sprayed on the radiator 1 through the spray head to wet and flush dust and impurities on the radiator 1;

s300, adjusting a mechanical fan to rotate reversely to clean the radiator;

specifically, a person in the vehicle issues a steering switching instruction to the controller 18 through the console 19, the controller 18 sends an electric signal to the electromagnetic expansion valve 13, the electromagnetic expansion valve 13 retracts to drive the shifting piece 12 to contact and push the annular groove, the second transmission shaft 7 is pushed to separate the second gear 6 from the fifth gear 14, the third gear 10 is meshed with the fourth gear 11, after adjustment is completed, the controller 18 sends an electric signal to the water pump 16 to stop the operation of the water pump, then the vehicle engine starts to work, power is input through the second transmission shaft 7, the fourth gear 11 drives the first gear 4 to rotate, finally the mechanical fan 3 is driven to rotate reversely through the first transmission shaft 5, the mechanical fan 3 creates wind pressure on one side of the radiator 1, and the radiator 1 is cleaned;

s400, adjusting the mechanical fan to rotate in the positive direction to clean the radiator;

specifically, after the mechanical fan 3 reversely rotates and cleans, the engine stops working, personnel in the vehicle issue a command of switching and steering to the controller 18 through the console 19, the controller 18 sends an electric signal to the electromagnetic expansion valve 13, the electromagnetic expansion valve 13 extends out to drive the shifting piece 12 to contact and push the annular groove, so that the second transmission shaft 7 slides along the axial direction, the fourth gear 11 and the third gear 10 are disengaged, the second gear 6 and the fifth gear 14 are meshed, the engine is restarted to drive the second transmission shaft 7 to rotate, the fifth gear 14 is driven to the second gear 6, finally the first transmission shaft 5 drives the mechanical fan 3 to rotate in the forward direction, and the radiator 1 is cleaned.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.