A cooling device for a skid steer loader motor

By using a cooling system that combines water cooling and air cooling, the problem of high-temperature operation of the skid steer loader motor drive system has been solved, achieving effective cooling and extending the service life of the motor.

CN120792484BActive Publication Date: 2025-12-02XINSONG INTELLIGENT MFG PUBLIC SERVICE PLATFORM (QINGZHOU) CO LTD
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Patent Information

Application Number
CN202511301987.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2025-12-02
Estimated Expiration
2045-09-12

AI Technical Summary

Technical Problem

The motor drive system of skid steer loaders operates in high-temperature environments, which affects the service life of the motor. Existing fan cooling methods cannot effectively cool the interior of skid steer loaders.

Method used

A cooling system combining water cooling and air cooling is adopted. The heat of the motor drive unit is removed through the circulation pipe, and the cooling device and honeycomb cotton board are used for cooling. Combined with fan cooling and gas circulation, the cooling effect is improved.

Benefits of technology

It effectively reduces the internal temperature of the motor drive unit and skid steer loader, prevents parts aging, and improves motor lifespan and cooling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of motor cooling technology and discloses a cooling device for a skid steer loader motor. The device includes a chassis body, a tracked walking device at the bottom of the chassis body, a hydraulic drive device at the upper end of the chassis body, a bucket at the end of the hydraulic drive device away from the chassis body, an electronic control device inside the chassis body, and a motor drive device inside the chassis body. A base is fixedly connected to the bottom of the inner wall of the chassis body, and a cooling tank is fixedly connected to the top of the base. The invention uses a water pump to transfer coolant from the cooling tank to an outlet pipe via an inlet pipe. The outlet pipe then transfers the coolant to a circulation pipe via a bend. The circulation pipe is located on the surface of the motor drive device. When the coolant flows inside the circulation pipe, it carries away the heat generated by the motor drive device, thereby cooling the motor drive device.
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Description

Technical Field

[0001] This invention relates to the field of motor cooling technology, specifically a cooling device for a skid steer loader motor. Background Technology

[0002] Skid steer loaders, also known as skid steer loaders, multi-purpose engineering vehicles, or multi-purpose engineering machines, are wheeled special-purpose chassis equipment that uses the difference in linear speed between the wheels on both sides to achieve vehicle steering. They are mainly used in situations where the work site is small, the ground is uneven, and the work content changes frequently. They are suitable for infrastructure construction, industrial applications, dock loading and unloading, urban streets, residences, barns, livestock sheds, airport runways, etc. They can also be used as auxiliary equipment for large-scale engineering construction machinery. Skid steer loaders have two types of travel: wheeled and tracked.

[0003] The motor drive system inside a skid steer loader typically uses a fan to cool the motor. When a skid steer loader operates for a long time, the internal temperature will be high. The fan can only remove the heat around the motor and cannot cool the inside of the skid steer loader. This causes the motor drive system to operate in a high-temperature environment, which affects the service life of the motor. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling device for a skid steer loader motor to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a cooling device for a skid steer loader motor, comprising a vehicle body, a tracked walking device at the bottom of the vehicle body, a hydraulic drive device at the top of the vehicle body, a bucket at the end of the hydraulic drive device away from the vehicle body, an electronic control device inside the vehicle body, a motor drive device inside the vehicle body, a base fixedly connected to the bottom of the inner wall of the vehicle body, a cooling box fixedly connected to the top of the base, and a water-cooling component inside the vehicle body.

[0007] The water-cooling component includes a water inlet pipe, one end of which is connected to the bottom of the cooling tank. A water pump is connected to the end of the water inlet pipe away from the cooling tank. An outlet pipe is connected to the end of the water pump away from the water inlet pipe. A drip pipe is connected to the end of the outlet pipe away from the water pump. A bend is connected to the end of the drip pipe away from the outlet pipe. A circulation pipe is connected to the end of the circulation pipe away from the bend. A cooling device is connected to the end of the cooling device away from the circulation pipe. A connecting pipe is connected to the surface of the cooling tank at the end of the connecting pipe away from the cooling device. An air-cooling component is installed inside the vehicle body, and auxiliary components are installed inside the cooling tank.

[0008] Furthermore, the surface of the cooling box is hinged with a sealing door, the surface of the vehicle body is provided with an opening and closing door, the upper surface of the vehicle body is provided with an air inlet, the bottom of the inner wall of the vehicle body is fixedly connected with a protective cover, the inner wall of the cooling box is fixedly connected with a support plate, the inner wall of the cooling box is inserted with a perforated plate, and the top of the cooling box is fixedly connected with an air intake frame.

[0009] Furthermore, the motor drive device is located inside the protective cover, the circulation pipe is located at the end of the protective cover and the motor drive device that are close to each other, the bottom of the screen plate is in contact with the top of the support plate, the surface of the water pump is fixedly connected to the end of the cooling box, the drip pipe is located inside the upper part of the air intake frame, the surface of the cooling device is fixedly connected to the surface of the protective cover, and the top of the cooling box is connected to the bottom of the air intake frame.

[0010] Furthermore, the air-cooled component includes a transmission frame, which communicates with the upper surface of the air intake frame. A power unit is fixedly connected to the upper surface of the air intake frame, and a rotating rod is fixedly connected to the output end of the power unit. A fan is fixedly connected to the surface of the rotating rod. A transmission pipe is connected to the end of the transmission frame away from the air intake frame, and a semi-circular exhaust frame is connected to the end of the transmission pipe away from the transmission frame. A through-hole frame is fixedly connected to the bottom of the inner wall of the air intake frame, and a honeycomb cotton board is provided inside the through-hole frame. A separation frame is fixedly connected to the bottom of the transmission frame, and an exhaust frame is connected to the end of the separation frame. A distance is provided between the end of the exhaust frame away from the separation frame and the inner wall of the vehicle body.

[0011] Furthermore, the bottom of the rotating rod passes through the transmission frame and extends into the interior of the transmission frame, the fan is located inside the transmission frame, and the through-hole frame is located below the drip tube.

[0012] Furthermore, the surface of the semi-circular exhaust frame is in contact with the inner wall of the protective cover, the separation frame is located at the end of the protective cover away from the semi-circular exhaust frame, and there are two exhaust frames, which are symmetrically arranged with the separation frame as the center.

[0013] Furthermore, the auxiliary component includes a circular hole rod, the surface of which is fixedly connected to the surface of the exhaust frame. A circular rod is rotatably connected to the inner wall of the circular hole rod. Pulleys are fixedly connected to the upper surface of the rotating rod and the upper surface of the circular rod, respectively. A belt is driven through the inner walls of the two pulleys. A bracket is fixedly connected to the end of the cooling box. A helical gear frame is rotatably connected to the inner wall of the bracket. Grooved discs are fixedly connected to the top of the helical gear frame and the lower surface of the circular rod, respectively. A transmission belt is driven through the inner walls of the two grooved discs. A cylindrical rod is rotatably connected to the inner wall of the cooling box. A helical gear is fixedly connected to the end of the cylindrical rod. A mixing plate is fixedly connected to the surface of the cylindrical rod. A circular grooved disc is fixedly connected to the surface of the cylindrical rod.

[0014] Furthermore, the end of the cylindrical rod away from the circular groove plate passes through the cooling box and extends into the interior of the cooling box, the surface of the helical gear meshes with the lower surface of the helical gear frame, and the mixing plate is located inside the cooling box and below the sieve plate.

[0015] Furthermore, a connecting plate is slidably connected to the inner wall of the cooling box, a tripod is rotatably connected to the end of the connecting plate, a scraper is fixedly connected to the end of the tripod, a spring is fixedly connected to the inner wall of the tripod, a spring rod is fixedly connected to the inner wall of the cooling box, a contact rod is fixedly connected to the end of the spring rod away from the cooling box, an inclined plate is rotatably connected to the end of the contact rod, and the end of the inclined plate away from the contact rod is hinged to the bottom of the connecting plate.

[0016] Furthermore, the top of the linkage plate extends above the perforated sieve plate, the bottom of the scraper contacts the top of the perforated sieve plate, the bottom of the linkage plate is located below the perforated sieve plate, the end of the contact rod away from the elastic rod contacts the inner wall of the circular groove, and the end of the inclined plate away from the contact rod is inclined downward.

[0017] The present invention has the following beneficial effects:

[0018] This invention relates to a tracked walking device for moving the vehicle body, a hydraulic drive device for driving the bucket, and a motor drive device that starts a water pump during operation. The water pump transfers coolant from the cooling tank to the outlet pipe through the inlet pipe. The outlet pipe then transfers the coolant to the inside of a circulation pipe through a bend. The circulation pipe is located on the surface of the motor drive device. When the coolant flows inside the circulation pipe, it carries away the heat generated by the motor drive device, thereby cooling the motor drive device and preventing rapid aging of parts caused by high-temperature operation. The coolant inside the circulation pipe is transferred to the cooling tank for recycling through a cooling device. The cooling device further cools the circulated coolant, allowing it to cool down quickly and improving the cooling effect of the circulation pipe on the motor drive device.

[0019] In this invention, after the coolant enters the drip tube, it drips into the honeycomb cotton board. As the coolant accumulates inside the honeycomb cotton board, it cools the interior of the air intake frame. The coolant inside the honeycomb cotton board then circulates through the air intake frame into the cooling box. The starting power unit drives the rotating rod, which in turn drives the fan. The fan transfers the gas from inside the air intake frame to the transmission pipe. The semi-circular exhaust frame propels the cooled gas across the surface of the motor drive unit, further improving the cooling effect. The gas inside the protective cover enters the exhaust frame through the separation frame, and then enters the interior of the vehicle body to cool the interior, reducing the internal temperature and thus improving the cooling effect on the motor drive unit.

[0020] In this invention, the rotating rod drives the round rod to rotate inside the round hole rod via a belt and pulley. The round rod, in turn, drives the helical gear frame to rotate inside the support via a grooved disc and transmission belt. The helical gear frame, in turn, meshes with a helical gear, driving the cylindrical rod to rotate inside the cooling tank. The mixing plate, rotating with the cylindrical rod, mixes the coolant, ensuring that the coolant cooled by the cooling device quickly mixes with the coolant inside the cooling tank. This reduces the temperature of the coolant inside the cooling tank and improves its cooling effect during flow. The rotation of the cylindrical rod also drives the grooved disc to rotate and compress the contact rod. When compressed, the contact rod compresses the elastic rod, causing it to contract. When the contact rod moves, it drives the inclined plate to move. At this time, the inclined plate, due to its tilt setting, pushes the connecting plate downward. When the connecting plate moves downward, it pushes the tripod to move. When the tripod moves downward, it expands outward and pushes the scraper to move. The scraper cleans the top of the perforated plate, preventing the perforated plate from becoming clogged and affecting the circulation of coolant. When the contact rod separates from the circular groove plate, the tripod will use the elasticity of the spring to reset, causing the scraper to move back and forth on the top of the perforated plate, improving the cleaning effect of the perforated plate. A sealing door is provided on the surface of the cooling box, which facilitates the replacement of the perforated plate and the addition of coolant to the interior of the cooling box.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the main body structure of the vehicle body of the present invention;

[0025] Figure 3 This is a schematic diagram of the cooling box structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the base structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the water-cooled component of the present invention;

[0028] Figure 6 This is another structural schematic diagram of the water-cooling component of the present invention;

[0029] Figure 7 This is a schematic diagram of the support plate structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the overall structure of the air-cooled component of the present invention;

[0031] Figure 9 This is a schematic diagram of the overall structure of the auxiliary component of the present invention;

[0032] Figure 10 This is another schematic diagram of the auxiliary component of the present invention;

[0033] Figure 11 This is a schematic diagram of the hybrid plate structure of the present invention;

[0034] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of part A in the diagram.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] In the diagram: 1. Vehicle body; 2. Tracked walking device; 3. Hydraulic drive unit; 4. Bucket; 5. Electrical control unit; 6. Motor drive unit; 7. Air intake; 8. Opening door; 9. Cooling box; 10. Sealing door; 11. Base; 12. Water-cooled components; 13. Air-cooled components; 14. Auxiliary components; 20. Air intake frame; 21. Screen plate; 22. Water outlet pipe; 23. Water pump; 24. Water inlet pipe; 25. Protective cover; 26. Connecting pipe; 27. Bend; 28. Cooling device; 29. ​​Circulation pipe; 30. Drip pipe; 31. Support plate; 40. Power unit 41. Rotating rod; 42. Separating frame; 43. Exhaust frame; 44. Fan; 45. Transmission frame; 46. Transmission pipe; 47. Semi-circular exhaust frame; 48. Through-hole frame; 49. Honeycomb cotton board; 50. Belt; 51. Pulley; 52. Round rod; 53. Grooved disc; 54. Transmission belt; 55. Helical gear; 56. Helical gear frame; 57. Support; 58. Round hole rod; 59. Cylindrical rod; 60. Mixing plate; 61. Scraper; 62. Spring; 63. Triangular frame; 64. Linkage plate; 65. Circular grooved disc; 66. Contact rod; 67. Elastic rod; 68. Inclined plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1-12 As shown, the present invention is a cooling device for a skid steer loader motor, including a vehicle body 1, a tracked walking device 2 at the bottom of the vehicle body 1, a hydraulic drive device 3 at the upper end of the vehicle body 1, a bucket 4 at the end of the hydraulic drive device 3 away from the vehicle body 1, an electronic control device 5 inside the vehicle body 1, a motor drive device 6 inside the vehicle body 1, a base 11 fixedly connected to the bottom of the inner wall of the vehicle body 1, a cooling box 9 fixedly connected to the top of the base 11, and a water-cooling component 12 inside the vehicle body 1.

[0039] The water-cooled component 12 includes a water inlet pipe 24, one end of which is connected to the bottom of the cooling tank 9. A water pump 23 is connected to the end of the water inlet pipe 24 away from the cooling tank 9. An outlet pipe 22 is connected to the end of the water pump 23 away from the water inlet pipe 24. A drip pipe 30 is connected to the end of the outlet pipe 22 away from the water pump 23. A bend pipe 27 is connected to the end of the drip pipe 30 away from the outlet pipe 22. A circulation pipe 29 is connected to the end of the circulation pipe 29 away from the bend pipe 27. A cooling device 28 is connected to the end of the cooling device 28 away from the circulation pipe 29. A connecting pipe 26 is connected to the end of the connecting pipe 26 away from the cooling device 28 and connected to the surface of the cooling tank 9. The vehicle body 1 is connected to the air-cooled component 13 inside the body, the cooling box 9 is equipped with the auxiliary component 14 inside the body, the tracked walking device 2 is used to move the body body 1, the hydraulic drive device 3 is used to drive the bucket 4 to work, and the motor drive device 6 starts the water pump 23 to start working when it is working. The water pump 23 transfers the coolant inside the cooling box 9 to the water outlet pipe 22 through the water inlet pipe 24. The water outlet pipe 22 transfers the coolant to the inside of the circulation pipe 29 through the bend pipe 27. The circulation pipe 29 is set on the surface of the motor drive device 6. When the coolant flows inside the circulation pipe 29, it will carry away the heat generated by the motor drive device 6, thereby cooling the motor drive device 6.

[0040] A sealing door 10 is hinged to the surface of the cooling box 9, and an opening and closing door 8 is provided on the surface of the body body 1. An air inlet 7 is provided on the upper surface of the body body 1. A protective cover 25 is fixedly connected to the bottom of the inner wall of the body body 1. A support plate 31 is fixedly connected to the inner wall of the cooling box 9. A perforated plate 21 is inserted into the inner wall of the cooling box 9. An air intake frame 20 is fixedly connected to the top of the cooling box 9. The coolant inside the circulation pipe 29 is transferred to the interior of the cooling box 9 for circulation through the cooling device 28. The cooling device 28 cools the circulated coolant so that the coolant can be cooled down quickly.

[0041] The motor drive unit 6 is located inside the protective cover 25, the circulation pipe 29 is located at the end of the protective cover 25 that is close to the motor drive unit 6, the bottom of the screen plate 21 is in contact with the top of the support plate 31, the surface of the water pump 23 is fixedly connected to the end of the cooling box 9, the drip pipe 30 is located inside the upper part of the air intake frame 20, the surface of the cooling device 28 is fixedly connected to the surface of the protective cover 25, and the top of the cooling box 9 is connected to the bottom of the air intake frame 20.

[0042] The air-cooled component 13 includes a transmission frame 45, which is connected to the upper surface of the air intake frame 20. A power unit 40 is fixedly connected to the upper surface of the air intake frame 20. A rotating rod 41 is fixedly connected to the output end of the power unit 40. A fan 44 is fixedly connected to the surface of the rotating rod 41. A transmission pipe 46 is connected to the end of the transmission frame 45 away from the air intake frame 20. A semi-circular air outlet frame 47 is connected to the end of the transmission pipe 46 away from the transmission frame 45. A through-hole frame 48 is fixedly connected to the bottom of the inner wall of the air intake frame 20. A honeycomb cotton board 49 is provided inside the through-hole frame 48. A separation frame 42 is fixedly connected to the bottom of the transmission frame 45. An exhaust frame 43 is connected to the end of the separation frame 42. The end of the exhaust frame 43 away from the separation frame 42 is separated from the inner wall of the body 1. When the coolant enters the drip pipe 30, the coolant will drip into the honeycomb cotton plate 49 through the drip pipe 30. When the coolant accumulates in the honeycomb cotton plate 49, it will cool the inside of the air intake frame 20. The coolant inside the honeycomb cotton plate 49 will enter the cooling box 9 through the air intake frame 20 for circulation.

[0043] The bottom of the rotating rod 41 passes through the transmission frame 45 and extends into the interior of the transmission frame 45. The fan 44 is located inside the transmission frame 45, and the through-hole frame 48 is located below the drip tube 30.

[0044] The surface of the semi-circular exhaust bracket 47 contacts the inner wall of the protective cover 25. The separation bracket 42 is located at the end of the protective cover 25 away from the semi-circular exhaust bracket 47. There are two exhaust brackets 43, which are symmetrically arranged with the separation bracket 42 as the center. The starting power device 40 drives the rotating rod 41 to rotate. When the rotating rod 41 rotates, it drives the fan 44 to work. The fan 44 will transfer the gas inside the intake bracket 20 to the inside of the transmission pipe 46. The semi-circular exhaust bracket 47 will push the cooled gas to flow on the surface of the motor drive device 6, using the cold air to cool the motor drive device 6, further improving the cooling effect of the motor drive device 6. The gas inside the protective cover 25 will enter the interior of the exhaust bracket 43 through the separation bracket 42, and the gas will enter the interior of the body body 1 through the exhaust bracket 43 to cool the interior of the body body 1.

[0045] Auxiliary component 14 includes a circular hole rod 58, the surface of which is fixedly connected to the surface of the exhaust bracket 43. A circular rod 52 is rotatably connected to the inner wall of the circular hole rod 58. Pulleys 51 are fixedly connected to the upper surface of the rotating rod 41 and the upper surface of the circular rod 52, respectively. Belts 50 are driven through the inner walls of the two pulleys 51. A bracket 57 is fixedly connected to the end of the cooling box 9. A helical gear 56 is rotatably connected to the inner wall of the bracket 57. Grooved discs 53 are fixedly connected to the top of the helical gear 56 and the lower surface of the circular rod 52, respectively. Drive belts 54 are driven through the inner walls of the two grooved discs 53. A cylindrical rod 59 is rotatably connected to the inner wall of the cooling box 9. A helical gear 55 is fixedly connected to the end of the cylindrical rod 59. A mixing plate 60 is fixedly connected to the surface of the cylindrical rod 59, and a circular grooved plate 65 is fixedly connected to the surface of the cylindrical rod 59. When the rotating rod 41 rotates, it drives the cylindrical rod 52 to rotate inside the circular hole rod 58 through the belt 50 and the pulley 51. When the cylindrical rod 52 rotates, it drives the helical gear frame 56 to rotate inside the bracket 57 through the grooved plate 53 and the transmission belt 54. When the helical gear frame 56 rotates, it drives the cylindrical rod 59 to rotate inside the cooling box 9 through meshing with the helical gear 55. The mixing plate 60 mixes the coolant as the cylindrical rod 59 rotates, so that the coolant after being cooled by the cooling device 28 will quickly mix with the coolant inside the cooling box 9, thereby reducing the temperature of the coolant inside the cooling box 9.

[0046] The end of the cylindrical rod 59 away from the circular groove plate 65 passes through the cooling box 9 and extends into the interior of the cooling box 9. The surface of the helical gear 55 meshes with the lower surface of the helical gear frame 56. The mixing plate 60 is located inside the cooling box 9 and below the sieve plate 21.

[0047] A connecting plate 64 is slidably connected to the inner wall of the cooling box 9. A tripod 63 is rotatably connected to the end of the connecting plate 64. A scraper 61 is fixedly connected to the end of the tripod 63. A spring piece 62 is fixedly connected to the inner wall of the tripod 63. A spring rod 67 is fixedly connected to the inner wall of the cooling box 9. A contact rod 66 is fixedly connected to the end of the spring rod 67 away from the cooling box 9. An inclined plate 68 is rotatably connected to the end of the contact rod 66. The end of the inclined plate 68 away from the contact rod 66 is hinged to the bottom of the connecting plate 64. When the cylindrical rod 59 rotates, it drives the circular grooved plate 65 to rotate and presses against the contact rod 66. After being pressed, the contact rod 66 compresses the spring. When rod 67 retracts, contact rod 66 moves, causing inclined plate 68 to move. At this time, inclined plate 68, due to its tilt, pushes connecting plate 64 downward. When connecting plate 64 moves downward, it pushes tripod 63 to move. When tripod 63 moves downward, it expands outward and pushes scraper 61 to move. Scraper 61 is used to clean the top of screen plate 21 to prevent screen plate 21 from becoming clogged and affecting the circulation of coolant. When contact rod 66 separates from circular groove plate 65, tripod 63 will use the elasticity of spring 62 to reset, causing scraper 61 to move back and forth on the top of screen plate 21, improving the cleaning effect of screen plate 21.

[0048] The top of the linkage plate 64 extends above the screen plate 21, the bottom of the scraper 61 contacts the top of the screen plate 21, the bottom of the linkage plate 64 is located below the screen plate 21, the end of the contact rod 66 away from the elastic rod 67 contacts the inner wall of the circular groove plate 65, and the end of the inclined plate 68 away from the contact rod 66 is inclined downward.

[0049] In operation, the tracked walking device 2 is used for the movement of the vehicle body 1, the hydraulic drive device 3 is used to drive the bucket 4, and the motor drive device 6 starts working by activating the water pump 23. The water pump 23 transfers the coolant inside the cooling tank 9 to the outlet pipe 22 through the inlet pipe 24. The outlet pipe 22 then transfers the coolant to the inside of the circulation pipe 29 through the bend pipe 27. The circulation pipe 29 is located on the surface of the motor drive device 6. When the coolant flows inside the circulation pipe 29, it carries away the heat generated by the motor drive device 6, thereby cooling the motor drive device 6 and preventing the parts from aging rapidly due to high temperature operation. The coolant inside the circulation pipe 29 is then transferred to the inside of the cooling tank 9 through the cooling device 28 for circulation. The cooling device 28 cools the circulated coolant, allowing it to cool down quickly and improving the cooling effect of the circulation pipe 29 on the motor drive device 6. When the coolant enters the drip pipe 30, it drips into the honeycomb cotton board 49. The accumulated coolant in the honeycomb cotton board 49 cools the inside of the air intake frame 20. The coolant inside the honeycomb cotton board 49 then circulates through the air intake frame 20 into the cooling box 9. The starting power device 40 drives the rotating rod 41 to rotate, which in turn drives the fan 44. The fan 44 transfers the gas inside the air intake frame 20 to the transmission pipe 46. The semi-circular exhaust frame 47 pushes the cooled gas... The gas flows on the surface of the motor drive unit 6, using cold air to cool the motor drive unit 6, further improving the cooling effect. The gas inside the protective cover 25 enters the interior of the exhaust frame 43 through the separator 42, and then enters the interior of the vehicle body 1 through the exhaust frame 43 to cool the interior of the vehicle body 1, reducing the temperature inside the vehicle body 1 and thus improving the cooling effect on the motor drive unit 6. When the rotating rod 41 rotates, it drives the round rod 52 to rotate inside the round hole rod 58 through the belt 50 and pulley 51. When the round rod 52 rotates, it drives the helical gear 56 to rotate inside the bracket 57 through the grooved disc 53 and transmission belt 54. When the helical gear 56 rotates, it drives the round rod 52 to rotate through the meshing of the helical gear 55. The cylindrical rod 59 rotates inside the cooling tank 9. The mixing plate 60, rotating with the cylindrical rod 59, mixes the coolant, allowing the coolant cooled by the cooling device 28 to quickly mix with the coolant inside the cooling tank 9. This reduces the temperature of the coolant inside the cooling tank 9 and improves its cooling effect during flow. As the cylindrical rod 59 rotates, it drives the circular groove plate 65 to rotate and presses against the contact rod 66. The pressure on the contact rod 66 causes the elastic rod 67 to contract. The movement of the contact rod 66 moves the inclined plate 68, which, due to its tilt, pushes the connecting plate 64 downwards. The downward movement of the connecting plate 64 pushes the tripod 63 to move, and the downward movement of the tripod 63 causes it to expand outwards and push the scraper 61 to move.The top of the perforated plate 21 is cleaned using a scraper 61 to prevent blockage and ensure proper coolant circulation. When the contact rod 66 separates from the circular groove plate 65, the tripod 63 uses the elasticity of the spring 62 to reset, causing the scraper 61 to reciprocate on top of the perforated plate 21, improving cleaning efficiency. A sealing door 10 is provided on the surface of the cooling tank 9 for easy replacement of the perforated plate 21 and for adding coolant into the cooling tank 9.

[0050] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling device for a skid steer loader motor, comprising a vehicle body (1), a tracked walking device (2) disposed at the bottom of the vehicle body (1), a hydraulic drive device (3) disposed at the upper end of the vehicle body (1), a bucket (4) disposed at the end of the hydraulic drive device (3) away from the vehicle body (1), an electronic control device (5) disposed inside the vehicle body (1), a motor drive device (6) disposed inside the vehicle body (1), a base (11) fixedly connected to the bottom of the inner wall of the vehicle body (1), and a cooling box (9) fixedly connected to the top of the base (11), characterized in that, The interior of the vehicle body (1) is equipped with a water-cooling component (12); The water-cooled component (12) includes an inlet pipe (24), the end of which is connected to the bottom of the cooling tank (9). A water pump (23) is connected to the end of the inlet pipe (24) away from the cooling tank (9). An outlet pipe (22) is connected to the end of the water pump (23) away from the inlet pipe (24). A drip pipe (30) is connected to the end of the outlet pipe (22) away from the water pump (23). A drip pipe (30) is connected to the end of the drip pipe (30) away from the outlet pipe (22). A bend (27) is connected to a circulation pipe (29) at one end away from the drip pipe (30). A cooling device (28) is connected to the other end of the circulation pipe (29) away from the bend (27). A connecting pipe (26) is connected to the other end of the cooling device (28) away from the circulation pipe (29). The other end of the connecting pipe (26) away from the cooling device (28) is connected to the surface of the cooling box (9). An air-cooled component (13) is provided inside the body body (1). The surface of the cooling box (9) is hinged with a sealing door (10), the surface of the body body (1) is provided with an opening and closing door (8), the upper surface of the body body (1) is provided with an air inlet (7), the bottom of the inner wall of the body body (1) is fixedly connected with a protective cover (25), the inner wall of the cooling box (9) is fixedly connected with a support plate (31), the inner wall of the cooling box (9) is inserted with a perforated plate (21), and the top of the cooling box (9) is fixedly connected with an air intake frame (20). The motor drive device (6) is located inside the protective cover (25), the circulation pipe (29) is located at the end of the protective cover (25) and the motor drive device (6) that are close to each other, the bottom of the screen plate (21) is in contact with the top of the support plate (31), the surface of the water pump (23) is fixedly connected to the end of the cooling box (9), the drip pipe (30) is located above the inside of the air intake frame (20), the surface of the cooling device (28) is fixedly connected to the surface of the protective cover (25), and the top of the cooling box (9) is connected to the bottom of the air intake frame (20). The air-cooled component (13) includes a transmission frame (45), which is connected to the upper surface of the air intake frame (20). A power unit (40) is fixedly connected to the upper surface of the air intake frame (20). A rotating rod (41) is fixedly connected to the output end of the power unit (40). A fan (44) is fixedly connected to the surface of the rotating rod (41). A transmission pipe (46) is connected to one end of the transmission frame (45) away from the air intake frame (20). A semi-circular exhaust frame (47) is connected to one end of the transmission pipe (46) away from the transmission frame (45). A through-hole frame (48) is fixedly connected to the bottom of the inner wall of the air intake frame (20). A honeycomb cotton board (49) is provided inside the through-hole frame (48). A separation frame (42) is fixedly connected to the bottom of the transmission frame (45). An exhaust frame (43) is connected to the end of the separation frame (42). A distance is provided between the end of the exhaust frame (43) away from the separation frame (42) and the inner wall of the vehicle body (1).

2. The cooling device for a skid steer loader motor according to claim 1, characterized in that: The bottom of the rotating rod (41) passes through the transmission frame (45) and extends into the interior of the transmission frame (45). The fan (44) is located inside the transmission frame (45), and the through-hole frame (48) is located below the drip tube (30).

3. A cooling device for a skid steer loader motor according to claim 2, characterized in that: The surface of the semi-circular exhaust frame (47) is in contact with the inner wall of the protective cover (25). The separation frame (42) is located at the end of the protective cover (25) away from the semi-circular exhaust frame (47). There are two exhaust frames (43), and the two exhaust frames (43) are symmetrically arranged with the separation frame (42) as the center.

4. A cooling device for a skid steer loader motor according to claim 3, characterized in that: The cooling box (9) is equipped with an auxiliary component (14), which includes a round hole rod (58). The surface of the round hole rod (58) is fixedly connected to the surface of the exhaust frame (43). A round rod (52) is rotatably connected to the inner wall of the round hole rod (58). A pulley (51) is fixedly connected to the upper surface of the rotating rod (41) and the upper surface of the round rod (52). A belt (50) is drivingly connected to the inner walls of the two pulleys (51). A bracket (57) is fixedly connected to the end of the cooling box (9). The inner wall of the frame (57) is rotatably connected to a helical gear frame (56). The top of the helical gear frame (56) and the lower surface of the round rod (52) are respectively fixedly connected to grooved discs (53). The inner walls of the two grooved discs (53) are connected to a transmission belt (54). The inner wall of the cooling box (9) is rotatably connected to a cylindrical rod (59). The end of the cylindrical rod (59) is fixedly connected to a helical gear (55). The surface of the cylindrical rod (59) is fixedly connected to a mixing plate (60). The surface of the cylindrical rod (59) is fixedly connected to a circular grooved disc (65).

5. A cooling device for a skid steer loader motor according to claim 4, characterized in that: The end of the cylindrical rod (59) away from the circular groove plate (65) passes through the cooling box (9) and extends into the interior of the cooling box (9). The surface of the helical gear (55) meshes with the lower surface of the helical gear frame (56). The mixing plate (60) is located inside the cooling box (9) and below the sieve plate (21).

6. A cooling device for a skid steer loader motor according to claim 5, characterized in that: The inner wall of the cooling box (9) is slidably connected to a connecting plate (64), and a tripod (63) is rotatably connected to the end of the connecting plate (64). A scraper (61) is fixedly connected to the end of the tripod (63), and a spring piece (62) is fixedly connected to the inner wall of the tripod (63). A spring rod (67) is fixedly connected to the inner wall of the cooling box (9). A contact rod (66) is fixedly connected to the end of the spring rod (67) away from the cooling box (9). An inclined plate (68) is rotatably connected to the end of the contact rod (66), and the end of the inclined plate (68) away from the contact rod (66) is hinged to the bottom of the connecting plate (64).

7. A cooling device for a skid steer loader motor according to claim 6, characterized in that: The top of the connecting plate (64) extends above the sieve plate (21), the bottom of the scraper (61) contacts the top of the sieve plate (21), the bottom of the connecting plate (64) is located below the sieve plate (21), the end of the contact rod (66) away from the elastic rod (67) contacts the inner wall of the circular groove plate (65), and the end of the inclined plate (68) away from the contact rod (66) is inclined downward.

Citation Information

Patent Citations

  • Engine cooling device for industrial vehicle

    JP1995279669A