Collaborative cooling device of blowback fan for integrated heat management of harvester

Abstract

The invention relates to the technical field of blowback fans for integrated heat management of harvesters, and discloses a blowback fan collaborative cooling device for integrated heat management of harvesters, which comprises a first shell, a second shell is mounted on the left side in the first shell, a filter plate is mounted on the right side of the first shell, and a cooling assembly is mounted in the second shell. The cooling assembly comprises a radiator fixed to the left side of the top of the first shell, a first rectangular groove is formed in the inner wall of the front side of the second shell, water cooling pipes are fixed to the periphery of the inner wall of the second shell and connected with one another, a cooling liquid input pipe is fixed to the left side of the top of the second shell, and a cooling liquid output pipe is fixed to the right side of the top of the second shell. The cooling liquid input pipe and the cooling liquid output pipe are both connected with the water cooling pipe, the cooling liquid input pipe and the cooling liquid output pipe are both connected with the radiator, and a through hole is formed in the rear side of the second shell. Compared with the prior art, the cooling efficiency of the engine of the harvester can be improved by changing the air duct.

Description

Technical Field

[0001] The present invention relates to the technical field of back-blowing fans for integrated thermal management of harvesters, and in particular to a back-blowing fan collaborative cooling device for integrated thermal management of harvesters. Background Art

[0002] As an indispensable large-scale mechanical equipment in modern agricultural production, the harvester's engine, hydraulic pump, motor and other components will generate a lot of heat during operation. If this heat cannot be dissipated in time, it will cause the component temperature to be too high, and then cause problems such as engine power loss, reduced hydraulic system efficiency, and electrical component failure, seriously affecting the harvester's working performance and service life.

[0003] When the existing back-blowing fan is used to cool the harvester engine, the air duct of the back-blowing fan is too simple and cannot effectively cool the engine. If this continues for a long time, the engine will malfunction due to the influence of high temperature. Then, the existing equipment usually has a filter on the front side of the back-blowing fan to prevent large particles of impurities from damaging the fan. However, when the harvester is operating, there is a lot of dust on the site, which will cause the filter to be seriously clogged, resulting in reduced heat dissipation effect. Therefore, we proposed a back-blowing fan collaborative cooling device for integrated thermal management of harvesters. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a back-blowing fan collaborative cooling device for integrated thermal management of harvesters, which has the advantages of quickly dissipating heat from the engine through the air duct and cleaning the filter on the front side of the back-blowing fan, thereby improving the heat dissipation efficiency, and solves a series of problems in the existing technology such as the singleness of the air duct.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a back-blowing fan collaborative cooling device for integrated thermal management of a harvester, comprising:

[0006] a first housing, wherein a second housing is installed on the left side of the interior of the first housing, and a filter plate is installed on the right side of the first housing;

[0007] A cooling component is installed inside the second shell, and is used to cool the harvester engine. The cooling component includes a radiator fixed to the left side of the top of the first shell, a first rectangular groove is provided on the front inner wall of the second shell, and water-cooling pipes are fixed around the inner wall of the second shell, and the water-cooling pipes are connected to each other. A coolant input pipe is fixed to the left side of the top of the second shell, and a coolant output pipe is fixed to the right side of the top of the second shell. The coolant input pipe and the coolant output pipe are both connected to the water cooling pipe, and the coolant input pipe and the coolant output pipe are both connected to the radiator. A through hole is provided on the rear side of the second shell;

[0008] A cleaning assembly is installed on the right side of the first shell and is used to clean the filter plate.

[0009] Preferably, a second rectangular groove is provided at the left bottom of the first shell, the second shell is fixed to the top of the outer wall of the second rectangular groove, the inner wall of the first shell is fixedly connected to a wind plate near the through hole, and the outer wall of the wind plate is provided with several groups of wind holes at equal intervals, and the inner walls of several groups of the wind holes are rotatably connected to a wind shield, and the wind shield can only be rotated 90° counterclockwise.

[0010] Preferably, the cleaning component includes two groups of first through-grooves symmetrically opened on the right outer wall of the first shell, two groups of second through-grooves symmetrically fixed on the right outer wall of the first shell, and the filter plate is fixed in the middle of the first through-grooves and the second through-grooves.

[0011] Preferably, two groups of first racks are symmetrically and slidably connected on the left and right sides of the filter plate, and two groups of second racks are slidably connected on the left and right sides of the filter plate. The facing sides of the two groups of first racks are fixedly connected with a first connecting rod, and the facing sides of the two groups of second racks are fixedly connected with a second connecting rod. Several groups of first cleaning brushes are fixed to the side of the first connecting rod close to the filter plate, and several groups of second cleaning brushes are fixed to the side of the second connecting rod close to the filter plate.

[0012] Preferably, the left and right outer walls on the right side of the first shell are symmetrically connected to the first rack and symmetrically rotate with two groups of third gears, the first rack and the second rack are both meshed with the third gear, the right top of the first shell is fixedly connected to a fixed block, the front outer wall of the fixed block is fixedly connected to the third motor, the side of the fixed block away from the third motor is rotatably connected to the third synchronous wheel, the left and right outer walls of the first shell are both rotatably connected near the third gear, the two groups of fourth synchronous wheels are coaxially fixedly connected to the third gear, the fourth synchronous wheel and the third synchronous wheel are connected by a second synchronous belt, and the output end of the third motor is coaxially fixed to the third synchronous wheel.

[0013] Preferably, a support column is fixedly connected to the right side of the inner wall of the first shell near the filter plate, and the front outer wall of the support column is rotatably connected to a shaft, the right end of the shaft is coaxially fixedly connected to the fan, the left end of the shaft is fixedly connected to the first motor, and the output end of the first motor is fixedly connected to the shaft.

[0014] Preferably, the inner wall of the first shell is symmetrically connected to two sets of baffles for rotation near the fan, the outer wall on the front side of the first shell is rotatably connected to a first gear, the outer wall on the front side of the first shell is rotatably connected to a second gear near the first gear, the first gear is meshed with the second gear, the bottom of the outer wall on the front side of the first shell is rotatably connected to a second synchronous wheel, the outer wall of the second gear away from the side of the first shell is coaxially fixedly connected to the first synchronous wheel, the first synchronous wheel and the second synchronous wheel are connected by a first synchronous belt, the front side of the first shell is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to the second synchronous wheel.

[0015] Preferably, the baffle plate located on the upper side is coaxially fixedly connected to the first gear, and the baffle plate located on the lower side is coaxially fixedly connected to the second synchronous gear.

[0016] Compared with the prior art, the present invention provides a back-blowing fan collaborative cooling device for integrated thermal management of harvesters, which has the following beneficial effects:

[0017] 1. A back-blowing fan collaborative cooling device for integrated thermal management of a harvester is used by setting a first shell, a cooling component, etc. When the engine of the harvester needs to be cooled, the fan will start to blow external cold air to the engine. At the same time, the radiator will also start to assist the fan in cooling the engine of the harvester. In this process, the second motor will also start. The start of the second motor will cause the second synchronous wheel to rotate. The second synchronous wheel is connected to the first synchronous wheel through the first synchronous belt. Therefore, the two sets of baffles will rotate clockwise and counterclockwise. This design can change the air duct so that the incoming wind speed is compressed and blown to the engine in a fast manner to cool the engine. Through the above design, the cooling efficiency of the harvester engine can be improved by changing the air duct.

[0018] 2. A back-blowing fan collaborative cooling device for integrated thermal management of a harvester is provided with a first shell and a cleaning component. When in use, when the engine compartment of the harvester is full of impurities, the fan will blow in the opposite direction. At the same time, the two sets of baffles will change direction, so that the air duct inside the engine compartment is compressed. As the fan speed increases, the dust can be quickly taken out of the engine compartment. Then, when the filter plate needs to be cleaned, the third motor is started to move the two sets of first racks and second racks up and down, and the first cleaning brush and the second cleaning brush are used to clean both sides of the filter plate. The fallen dust will be discharged from the cabin as the fan blows in the opposite direction. Through the above design, the filter plate can be cleaned autonomously and the dust can be quickly discharged from the cabin of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cooling component structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the back side structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the fan installation structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the baffle installation structure of the present invention;

[0024] Figure 6 This is a schematic structural diagram of the cleaning component of the present invention;

[0025] Figure 7 This is a schematic diagram of the partial structure of the cleaning component of the present invention;

[0026] Figure 8 This is a schematic diagram of the upper structure of the cleaning component of the present invention;

[0027] Figure 9 This is a schematic diagram of the wind plate installation structure of the present invention.

[0028] In the figure: 1. First housing; 2. Cooling assembly; 3. Cleaning assembly; 4. Radiator; 5. First motor; 6. Fan; 7. Support column; 8. Second motor; 9. Baffle; 10. Water cooling pipe; 11. Coolant inlet pipe; 12. Second housing; 13. Coolant outlet pipe; 14. First gear; 15. Second gear; 16. First synchronous pulley; 17. First synchronous belt; 18. Second synchronous pulley; 19. Through hole; 20. First rectangular slot; 21. Second rectangular groove; 22. First rack; 23. Third gear; 24. Second rack; 25. First through-groove; 26. Second through-groove; 27. Filter plate; 28. Third synchronous wheel; 29. ​​Second synchronous belt; 30. Fourth synchronous wheel; 31. Fixed block; 32. Third motor; 33. First cleaning brush; 34. First connecting rod; 35. Second cleaning brush; 36. Second connecting rod; 37. Wind plate; 38. Wind hole; 39. Wind shield. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] As introduced in the background technology, in order to solve the deficiencies in the prior art and the above technical problems, the present application proposes a back-blowing fan collaborative cooling device for integrated thermal management of harvesters.

[0031] In a typical embodiment of the present application, Figure 1-9 As shown, a back-blowing fan collaborative cooling device for integrated thermal management of a harvester includes a first housing 1, a second housing 12 is installed on the left side of the interior of the first housing 1, and a filter plate 27 is installed on the right side of the first housing 1;

[0032] Before use, it should be noted that a second rectangular groove 21 is provided on the left side of the first shell 1, and a second shell 12 is provided on the top of the second rectangular groove 21. Similarly, a first rectangular groove 20 is also provided on the left side of the second shell 12. When placing, the first shell 1 is directly placed on the engine compartment of the harvester. At this time, the harvester engine will be on the left inner wall of the second shell 12. This design can better dissipate heat and cool the harvester engine.

[0033] As a preferred embodiment of this embodiment, the cooling component 2 is installed inside the second shell 12. The cooling component 2 is used to cool the harvester engine. The cooling component 2 includes a radiator 4 fixed to the left side of the top of the first shell 1. The front inner wall of the second shell 12 is provided with a first rectangular groove 20. Water cooling pipes 10 are fixed around the inner wall of the second shell 12. The water cooling pipes 10 are interconnected. A coolant inlet pipe 11 is fixed to the left side of the top of the second shell 12. A coolant outlet pipe 13 is fixed to the right side of the top of the second shell 12. The inlet pipe 11 and the coolant outlet pipe 13 are both connected to the water cooling pipe 10, and the coolant inlet pipe 11 and the coolant outlet pipe 13 are both connected to the radiator 4. A through hole 19 is provided on the rear side of the second shell 12, and a second rectangular groove 21 is provided on the left bottom of the first shell 1. The second shell 12 is fixed to the top of the outer wall of the second rectangular groove 21. The inner wall of the first shell 1 is fixedly connected to a wind plate 37 near the through hole 19. The outer wall of the wind plate 37 is equidistantly provided with a plurality of groups of wind holes 38. The inner wall of the plurality of groups of wind holes 38 is rotatably connected to a wind shield 39. The wind shield 39 is rotatably connected to the inner wall of the wind shield 39. 9 can only be rotated 90° counterclockwise. The right side of the inner wall of the first shell 1 is fixedly connected to the support column 7 near the filter plate 27. The front outer wall of the support column 7 is rotatably connected to the shaft. The right end of the shaft is coaxially fixedly connected to the fan 6. The left end of the shaft is fixedly connected to the first motor 5. The output end of the first motor 5 is fixedly connected to the shaft. The inner wall of the first shell 1 is symmetrically connected to the fan 6 and is symmetrically connected to the two sets of baffles 9. The first gear 14 is rotatably connected to the outer wall of the front side of the first shell 1. The second gear 15 is rotatably connected near the first gear 14. The first gear 14 is connected to the second gear 15. The second gear 15 is engaged, and is located at the bottom of the outer wall on the front side of the first housing 1 and is rotatably connected to the second synchronous gear 18. The outer wall of the second gear 15 away from the first housing 1 is coaxially fixedly connected to the first synchronous gear 16. The first synchronous gear 16 and the second synchronous gear 18 are connected by a first synchronous belt 17. The front side of the first housing 1 is fixedly connected to the second motor 8, and the output end of the second motor 8 is fixedly connected to the second synchronous gear 18. The baffle plate 9 on the upper side is coaxially fixedly connected to the first gear 14, and the baffle plate 9 on the lower side is coaxially fixedly connected to the second synchronous gear 18.

[0034] Specifically, after the first shell 1 is fixed, as the harvester starts, the engine cabin temperature gradually rises. It should be noted that when the temperature inside the engine cabin does not reach the set value, the fan 6 will not work at this time, and the natural wind will be introduced into the engine cabin through the air duct designed by the harvester itself to cool it down. As the harvester works for a long time, the temperature inside the airport gradually rises. At this time, the natural wind can no longer meet the heat dissipation needs. At this time, the fan 6 will start, and then the two sets of baffles 9 and wind plates 37 designed inside the first shell 1 will also start. When the fan 6 starts, the external natural wind will be pumped into the cabin. It should be mentioned here that the radiator 4 will work synchronously with the start-up of the fan 6. The bottom of the fan 6 is designed with a coolant inlet pipe 11 and a coolant outlet pipe 13, and the two ends are respectively connected in series with a water cooling pipe 10, which is designed in the second shell 12 Internal, therefore, when the fan 6 is working, it can not only cool down the inside of the cabin, but also cool down the engine itself. It should be mentioned that when the fan 6 is working, the two sets of baffles 9 will change the air duct to a state where the left side is small and the right side is large. This design can achieve that when the external airflow passes between the two sets of baffles 9, it will be affected by the change of the air duct and thus accelerated again, greatly improving the heat dissipation efficiency. At the same time, several sets of air holes 38 on the surface of the wind plate 37 will also be started. The inside of the air hole 38 is designed with a one-way rotating wind shield 39. The direction of rotation of the wind shield 39 is counterclockwise and can only be rotated 90°. At the same time, a vertical air duct is designed on the left and right sides of the second shell 12 and the first shell 1. This design can accelerate the cooling of the interior of the cabin. When the temperature inside the cabin drops below the set value, the fan 6 will stop and the harvester will work normally.

[0035] Furthermore, in the above scheme, the cleaning component 3 includes two groups of first through-grooves 25 symmetrically opened on the right outer wall of the first shell 1, two groups of second through-grooves 26 symmetrically fixed to the right outer wall of the first shell 1, and the filter plate 27 is fixed at the center of the first through-grooves 25 and the second through-grooves 26. Two groups of first racks 22 are symmetrically slidably connected on the left and right sides of the filter plate 27, and two groups of second racks 24 are slidably connected on the left and right sides of the filter plate 27. The first connecting rod 34 is fixedly connected to the facing side of the two groups of first racks 22, and the second connecting rod 36 is fixedly connected to the facing side of the two groups of second racks 24. Several groups of first cleaning brushes 33 are fixed to the side of the first connecting rod 34 close to the filter plate 27, and the second connecting rod 36 is fixedly connected to the side of the second connecting rod 36 close to the filter plate 27. Several groups of second cleaning brushes 35, the left and right outer walls on the right side of the first housing 1 are located at the first rack 22 and are symmetrically connected to two groups of third gears 23, the first rack 22 and the second rack 24 are both engaged with the third gear 23, the top right side of the first housing 1 is fixedly connected to a fixed block 31, the front outer wall of the fixed block 31 is fixedly connected to a third motor 32, the side of the fixed block 31 away from the third motor 32 is rotatably connected to the third synchronous wheel 28, the left and right outer walls of the first housing 1 are both rotatably connected near the third gear 23, the two groups of fourth synchronous wheels 30 are coaxially fixedly connected to the third gear 23, the fourth synchronous wheel 30 and the third synchronous wheel 28 are connected by a second synchronous belt 29, and the output end of the third motor 32 is coaxially fixed to the third synchronous wheel 28;

[0036] In this embodiment, when the amount of dust in the cabin of the harvester affects the efficiency of heat dissipation, the fan 6 will blow back. At the same time, the two sets of baffles 9 will change to a state where the left side is larger and then smaller. The purpose of this design is to increase the airflow inside the cabin and speed up the dust extraction. At this time, the wind holes 38 on the surface of the wind plate 37 will be blocked by the wind baffle 39. This design greatly improves the dust extraction efficiency. It should be noted that the two sets of baffles 9 are powered by the external second motor 8. After the external second motor 8 is started, the second synchronous wheel 18 will drive the first synchronous wheel 16 to rotate through the first synchronous belt 17, and the first gear 14 is engaged with the second gear 15, thereby realizing the change of the air duct by the two sets of baffles 9. Next, a filter plate 27 is designed on the front side of the fan 6. The design purpose of the filter plate 27 is to block External impurities damage the fan 6 and the equipment inside the cabin. When the surface of the filter plate 27 needs to be cleaned, the third motor 32 can be started while the fan 6 is in the backblowing state. The third motor 32 can be used to rotate the third synchronous wheel 28. The third synchronous wheel 28 will drive the fourth synchronous wheel 30 to rotate through the second synchronous belt 29. At the same time, the third gear 23 drives the first rack 22 and the second rack 24 to move up and down. It should be noted that the distance moved by the first rack 22 and the second rack 24 is just equal to the width of the filter plate 27. During the movement of the first rack 22 and the second rack 24, the first cleaning brush 33 and the second cleaning brush 35 will clean the front and back sides of the filter plate 27. The cleaned dust will be carried out of the cabin with the backblowing of the fan 6 to improve the subsequent heat dissipation efficiency inside the cabin.

[0037] Working principle of the present invention: After fixing the first shell 1 during use, as the harvester starts, the engine cabin temperature gradually rises. It should be noted that when the temperature inside the engine cabin does not reach the set value, the fan 6 will not work at this time, and the natural wind will be introduced into the engine cabin through the air duct designed by the harvester itself to cool it down. As the harvester works for a long time, the temperature inside the cabin gradually rises. At this time, the natural wind can no longer meet the heat dissipation needs. At this time, the fan 6 will start, and then the two sets of baffles 9 and wind plates 37 designed inside the first shell 1 will also start. When the fan 6 starts, the external natural wind will be pumped into the cabin. It should be mentioned here that the radiator 4 will start at the same time as the fan 6 starts. The fan 6 is designed to work in steps. A coolant inlet pipe 11 and a coolant outlet pipe 13 are designed at the bottom of the fan 6, and both ends thereof are connected in series with a water cooling pipe 10. The water cooling pipe 10 is designed inside the second shell 12. Therefore, when the fan 6 is working, it can not only cool the interior of the cabin, but also cool the engine itself. It should be mentioned that when the fan 6 is working, the two sets of baffles 9 will change the air duct to a state where the left side is small and the right side is large. This design can achieve that when the external airflow passes between the two sets of baffles 9, it will be affected by the change in the air duct and thus accelerated again, greatly improving the heat dissipation efficiency. At the same time, several sets of air holes 38 on the surface of the wind plate 37 will also start up, and the interior of the air hole 38 is designed with a one-way rotating The wind shield 39 rotates counterclockwise and can only rotate 90°. At the same time, a vertical air duct is designed on the left and right sides of the second shell 12 and the first shell 1. This design can accelerate the cooling of the interior of the cabin. When the temperature inside the cabin drops below the set value, the fan 6 will stop and the harvester will work normally. When the amount of dust in the cabin inside the harvester affects the heat dissipation efficiency, the fan 6 will blow back. At the same time, the two sets of baffles 9 will change to a state where the left side is large and then small. The purpose of this design is to increase the airflow inside the cabin and speed up the dust extraction. At this time, the wind holes 38 on the surface of the wind plate 37 will be blocked by the wind shield 39. This design greatly improves the dust extraction efficiency. It should be noted that The two sets of baffles 9 are powered by an external second motor 8. After the external second motor 8 is started, the second synchronous wheel 18 will drive the first synchronous wheel 16 to rotate through the first synchronous belt 17. Through the engagement of the first gear 14 and the second gear 15, the two sets of baffles 9 can change the air duct. Then, a filter plate 27 is designed on the front side of the fan 6. The purpose of the filter plate 27 is to prevent external impurities from damaging the fan 6 and the equipment inside the cabin. When the surface of the filter plate 27 needs to be cleaned, the third motor 32 can be started under the backblowing state of the fan 6. The third motor 32 is used to rotate the third synchronous wheel 28, and the third synchronous wheel 28 will drive the fourth synchronous wheel 30 to rotate through the second synchronous belt 29.At the same time, the third gear 23 drives the first rack 22 and the second rack 24 to move up and down. It should be noted that the distance the first rack 22 and the second rack 24 move is exactly equal to the width of the filter plate 27. During the movement of the first rack 22 and the second rack 24, the first cleaning brush 33 and the second cleaning brush 35 will clean both sides of the filter plate 27. The cleaned dust will be blown out of the cabin by the backflow of the fan 6, thereby improving the subsequent heat dissipation efficiency inside the cabin.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Back-blowing fan collaborative cooling device for integrated thermal management of harvesters, characterized by: include, a first housing, wherein a second housing is installed on the left side of the interior of the first housing, and a filter plate is installed on the right side of the first housing; A cooling component is installed inside the second shell, and is used to cool the harvester engine. The cooling component includes a radiator fixed to the left side of the top of the first shell, a first rectangular groove is provided on the front inner wall of the second shell, and water-cooling pipes are fixed around the inner wall of the second shell, and the water-cooling pipes are connected to each other. A coolant input pipe is fixed to the left side of the top of the second shell, and a coolant output pipe is fixed to the right side of the top of the second shell. The coolant input pipe and the coolant output pipe are both connected to the water cooling pipe, and the coolant input pipe and the coolant output pipe are both connected to the radiator. A through hole is provided on the rear side of the second shell; A cleaning assembly is installed on the right side of the first shell and is used to clean the filter plate.

2. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 1, characterized in that: A second rectangular groove is provided at the left bottom of the first shell, the second shell is fixed to the top of the outer wall of the second rectangular groove, a wind plate is fixedly connected to the inner wall of the first shell near the through hole, a plurality of groups of wind holes are equidistantly provided on the outer wall of the wind plate, and a wind shield is rotatably connected to the inner walls of the plurality of groups of wind holes, and the wind shield can only be rotated 90° counterclockwise.

3. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 1, characterized in that: The cleaning component includes two groups of first through-grooves symmetrically opened on the right outer wall of the first shell, two groups of second through-grooves symmetrically fixed on the right outer wall of the first shell, and the filter plate is fixed in the middle of the first through-grooves and the second through-grooves.

4. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 3, characterized in that: Two groups of first racks are symmetrically and slidably connected on the left and right sides of the filter plate, and two groups of second racks are slidably connected on the left and right sides of the filter plate. The facing sides of the two groups of first racks are fixedly connected with a first connecting rod, and the facing sides of the two groups of second racks are fixedly connected with a second connecting rod. Several groups of first cleaning brushes are fixed on the side of the first connecting rod close to the filter plate, and several groups of second cleaning brushes are fixedly connected on the side of the second connecting rod close to the filter plate.

5. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 4, characterized in that: The left and right outer walls on the right side of the first shell are symmetrically connected to the first rack and rotate with two groups of third gears. The first rack and the second rack are both meshed with the third gear. The top right side of the first shell is fixedly connected to a fixed block, and the front outer wall of the fixed block is fixedly connected to the third motor. The side of the fixed block away from the third motor is rotatably connected to the third synchronous wheel. The left and right outer walls of the first shell are rotatably connected near the third gear. The two groups of fourth synchronous wheels are coaxially fixedly connected to the third gear. The fourth synchronous wheel and the third synchronous wheel are connected by a second synchronous belt, and the output end of the third motor is coaxially fixed to the third synchronous wheel.

6. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 1, characterized in that: A support column is fixedly connected to the right side of the inner wall of the first shell near the filter plate, and a shaft is rotatably connected to the front outer wall of the support column. The right end of the shaft is coaxially fixedly connected to the fan, and the left end of the shaft is fixedly connected to the first motor, and the output end of the first motor is fixedly connected to the shaft.

7. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 1, characterized in that: The inner wall of the first shell is symmetrically connected to two sets of baffles near the fan, the outer wall on the front side of the first shell is rotatably connected to the first gear, the second gear is rotatably connected near the first gear, the first gear is meshed with the second gear, the bottom of the outer wall on the front side of the first shell is rotatably connected to the second synchronous gear, the outer wall of the second gear away from the side of the first shell is coaxially fixedly connected to the first synchronous gear, the first synchronous gear and the second synchronous gear are connected by a first synchronous belt, the front side of the first shell is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the second synchronous gear.

8. The back-blowing fan collaborative cooling device for integrated thermal management of a harvester according to claim 7, characterized in that: The baffle plate located on the upper side is coaxially fixedly connected to the first gear, and the baffle plate located on the lower side is coaxially fixedly connected to the second synchronous wheel.

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