Bevel gear box body structure with auxiliary cooling function

Abstract

The application relates to the technical field of gearboxes, in particular to a bevel gear box body structure with an auxiliary cooling function, which comprises a gearbox, the inner wall of the gearbox is rotationally connected with three bevel gears, the three bevel gears are mutually meshed, the outer wall of each bevel gear is fixedly connected with a gear shaft, the outer wall of each gear shaft is slidably arranged in the interior of the gearbox, the interior of the gearbox is filled with lubricating oil, a cooling mechanism for cooling the gear shaft through the lubricating oil is fixedly arranged between the interior of the gearbox and the outer wall of the gear shaft, and an adjusting mechanism is also fixedly arranged in the interior of the gearbox; when the rotation speed of the gear is increased to cause temperature rise, the centrifugal force drives the sliding assembly to move, triggers the gas to be sequentially transmitted through channels such as a rubber folding sleeve, a contraction pipe and a circular ring pipe, drives the contraction pipe to act, further drives the moving circular ring to move out, guides the lubricating oil to enter the cooling pipe from the inner wall of the gearbox through the communication pipe, and the lubricating oil flowability is obviously improved, and the cooling effect on the gear shaft is strengthened.

Description

Technical Field

[0001] This invention relates to the field of gearbox technology, specifically a bevel gearbox structure with auxiliary cooling function. Background Technology

[0002] In modern mechanical transmission systems, bevel gearboxes are widely used in automobiles, aerospace, and industrial manufacturing due to their high-efficiency power transmission capabilities. However, during high-speed operation, bevel gears generate a large amount of heat due to factors such as tooth surface friction and oil churning, causing the temperature of the lubricating oil inside the gearbox to rise sharply. This not only reduces lubrication performance but also significantly increases internal air pressure. If heat dissipation and air pressure balance cannot be achieved in time, problems such as lubricating oil leakage, aging of seals, and accelerated gear wear may occur, seriously affecting the reliability and service life of the equipment. Currently, the cooling methods for traditional bevel gearboxes mainly rely on heat sinks on the gearbox surface, forced air cooling, or external coolers. However, these methods have obvious limitations: heat sinks are greatly affected by ambient temperature and have limited heat dissipation efficiency; forced air cooling requires additional energy and easily brings dust into the gearbox; external coolers increase the size and cost of the equipment. In terms of air pressure balance, although commonly used vent caps can alleviate internal pressure, they cannot prevent external dust, moisture, and other contaminants from entering the gearbox, leading to lubricating oil contamination, which in turn reduces lubrication effect and gear transmission accuracy. In addition, the internal space of existing gearboxes is fixed and cannot dynamically adapt to changes in air pressure and temperature, which is not conducive to the effective circulation and heat dissipation of lubricating oil and makes it difficult to meet the high-efficiency cooling requirements under complex working conditions. Therefore, it is necessary to develop a bevel gearbox structure that can dynamically adjust the internal space, efficiently dissipate heat, and effectively isolate external pollutants, in order to solve the problems of low heat dissipation efficiency, poor air pressure balance, and easy contamination of lubricating oil in traditional technologies, and improve the overall performance and reliability of bevel gearboxes.

[0003] Chinese Patent (Announcement No. CN119778437A) discloses a gearbox cooling device with temperature monitoring function, belonging to the field of gearbox technology. It includes a gearbox assembly comprising a housing, a main shaft rotatably mounted in the middle of the housing, a worm gear fixedly connected to the middle side wall of the main shaft, a worm rotatably mounted on the inner side wall of the housing, a secondary bevel gear fixedly connected to the side wall of the worm, a drive shaft rotatably mounted on the side wall of the housing, and a main bevel gear fixedly connected to the end of the drive shaft; and a cooling assembly comprising a cover plate mounted on the end of the housing and a liquid storage tank adapted to be mounted on the side wall of the housing. The beneficial effects of this invention are: through the combined use of the gearbox assembly and the cooling assembly, it can quickly and effectively remove the heat generated by key components of the gearbox during operation, ensuring stable operation of the gearbox in high-temperature environments, facilitating real-time and accurate monitoring of the temperature at the end of the worm, and making it easy to adjust the working state of the cooling system.

[0004] As can be seen from the above solution, when the above solution is used, it only removes the heat generated by the key components of the gearbox during operation through the cooperation of the gearbox assembly and cooling assembly, ensuring the stable operation of the gearbox in a high-temperature environment and monitoring the temperature of the worm end. However, it cannot accelerate the cooling effect of the components, nor can it regulate the internal air pressure, resulting in the internal air pressure increasing or decreasing, and the air outside the gearbox carrying dust entering the gearbox. Therefore, we propose a bevel gearbox structure with auxiliary cooling function. Summary of the Invention

[0005] The purpose of this invention is to provide a bevel gearbox structure with auxiliary cooling function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A bevel gearbox structure with auxiliary cooling function includes a gearbox, three bevel gears are rotatably connected to the inner wall of the gearbox, the three bevel gears mesh with each other, a gear shaft is fixedly connected to the outer wall of each bevel gear, the outer wall of each gear shaft slides through the inside of the gearbox, and the inside of the gearbox is filled with lubricating oil. A cooling mechanism is fixedly installed between the inside of the gearbox and the outer wall of the gear shaft to cool the gear shaft with lubricating oil. An adjustment mechanism is also fixedly installed inside the gearbox. When all the bevel gears rotate at high speed, the lubricating oil inside the gearbox will heat up rapidly, and the air pressure inside the gearbox will gradually increase. The adjustment mechanism can adjust the size of the space inside the gearbox to keep the air pressure inside the gearbox in a balanced state, and can also increase the flow rate of the lubricating oil to improve the cooling efficiency.

[0007] As a further aspect of this solution, the cooling mechanism includes three cooling tubes, which are fixedly connected inside the gearbox, and each gear shaft is rotatably connected inside an adjacent cooling tube.

[0008] As a further aspect of this solution, the three cooling pipes are interconnected via a connecting pipe, and a return pipe is fixedly connected to the inner wall of the gearbox, which is fixedly connected to one of the adjacent cooling pipes.

[0009] As a further aspect of this solution, a circular ring box is fixedly connected to the inner wall of the gearbox, and two liquid inlets are opened on the outer wall of the circular ring box.

[0010] As a further aspect of this solution, the adjustment mechanism includes a mating block, which is fixedly connected to the outer wall of a nearby bevel gear. The mating block is located inside the gearbox, and a movable block is provided on the side of the mating block away from the bevel gear.

[0011] As a further aspect of this solution, multiple folding arms are rotatably connected between the mating block and the moving block, and a deformable spring is fixedly connected between the mating block and the moving block. A sliding ring sleeve is fixedly connected to the outer wall of each folding arm, and a counterweight is fixedly connected to the end of the sliding ring sleeve away from the deformable spring. A rotating tube is also provided on the inner wall of the gearbox, and the rotating tube is fixedly connected to the mating block and the moving block through a rubber mesh.

[0012] As a further aspect of this solution, both the upper and lower ends of the rotating circular tube are welded and fixed with abutting elastic plates. The outer wall of the abutting elastic plates abuts against the outer wall of the circular box. A rubber folding sleeve is fixedly connected to the end of the moving circular block near the mating circular block. The deformable spring is sleeved on the outer wall of the rubber folding sleeve. A shrink tube is fixedly connected to the end of the moving circular block away from the rubber folding sleeve. The rubber folding sleeve and the shrink tube are fixedly connected.

[0013] As a further aspect of this solution, the output end of the contraction tube is fixedly connected to a circular annular tube, and the end of the circular annular tube near the circular annular box is fixedly connected to multiple telescopic tubes. A movable circular annular ring is slidably connected to the inner wall of the circular annular box, and a circular groove is formed inside the movable circular annular ring. Multiple fixing blocks are fixedly connected to the inner wall of the circular groove, and each fixing block is fixedly connected to the outer wall of the circular annular box with a connecting tube. Each telescopic tube is fixedly connected to the movable circular annular ring through a push rod.

[0014] As a further aspect of this solution, a corrugated sleeve is fixedly connected to the outer wall of the gearbox, and a movable cover with a reset function is also slidably fitted onto the outer wall of the gearbox.

[0015] As a further aspect of this solution, the inner wall of the movable cover and the movable circular block are fixedly connected by multiple steel wire ropes.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. When this invention is used, as the gear rotation speed increases and the temperature rises, centrifugal force drives the sliding component to move, triggering the gas to be transmitted sequentially through channels such as the rubber folding sleeve, contraction tube, and annular tube. This drives the telescopic tube to move, which in turn moves the moving annular tube out, guiding the lubricating oil from the inner wall of the gearbox through the connecting tube into the cooling tube. This significantly improves the fluidity of the lubricating oil and enhances the cooling effect on the gear shaft. At the same time, even if the gear speed is low, once the lubricating oil temperature exceeds 60 degrees Celsius, the shape memory metal deformation spring will also contract, causing the moving annular tube to move through the same transmission path. This ensures the circulation efficiency of the lubricating oil in the cooling tube, effectively avoiding overheating problems caused by frictional heat generation, extending the service life of the gearbox, and ensuring the stable operation of the transmission system.

[0017] 2. When this invention is used, the extended corrugated sleeve increases the internal volume, which not only effectively alleviates the internal pressure of the gearbox caused by the increase in air pressure and prevents lubricating oil from leaking from the seal due to pressure difference, but also provides a buffer space for the thermally expanding lubricating oil. At the same time, it enables the gearbox to maintain good sealing performance under high-speed operation, reducing the risk of external dust and impurities entering the gearbox and contaminating the lubricating oil, and ensuring the cleanliness and stability of the lubrication system. When the gearbox speed decreases and the internal pressure and temperature drop, the corrugated sleeve will automatically contract and reset, restoring the compact structure of the gearbox, ensuring that the gearbox can maintain a high-efficiency operating state under different operating conditions, and significantly improving the reliability and service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a front view of a bevel gearbox structure with auxiliary cooling function.

[0019] Figure 2 A disassembly diagram of a bevel gearbox structure with auxiliary cooling function. Figure 1 .

[0020] Figure 3 A schematic diagram of the disassembly of a bevel gearbox structure with auxiliary cooling function. Figure 2 .

[0021] Figure 4 This is a structural diagram of a bevel gear in a bevel gearbox structure with auxiliary cooling function.

[0022] Figure 5 This is a schematic diagram of the position of the annular tube in a bevel gearbox structure with auxiliary cooling function.

[0023] Figure 6 This is a schematic diagram of the position of the elastic plate in a bevel gearbox structure with auxiliary cooling function.

[0024] Figure 7 This is a schematic diagram of the internal structure of a rotating circular tube in a bevel gearbox structure with auxiliary cooling function.

[0025] Figure 8 This is a side view of the rotating circular tube in a bevel gearbox structure with auxiliary cooling function.

[0026] Figure 9 This is a schematic diagram of the position of the elastic reset plate in a bevel gearbox structure with auxiliary cooling function.

[0027] Figure 10 This is a diagram showing the connection between the annular tube and the annular box in a bevel gearbox structure with auxiliary cooling function.

[0028] Figure 11 for Figure 10Enlarged view of point A in the image.

[0029] In the diagram: 1. Gearbox; 2. Fixing block; 3. Gear shaft; 4. Push rod; 5. Connecting pipe; 6. Connecting pipe; 7. Rubber mesh; 8. Infusion tube; 9. Bevel gear; 10. Folding arm; 11. Corrugated sleeve; 12. Second spring; 13. Movable cover; 14. Cooling tube; 15. Return tube; 17. Sliding ring sleeve; 18. Matching block; 19. Rotating tube; 21. Abutting elastic plate; 22. Connecting rod; 23. Counterweight; 24. Deformation spring; 25. Rubber folding sleeve; 26. Steel wire rope; 27. Moving block; 28. Contraction tube; 29. ​​Ring tube; 30. Telescopic tube; 31. Circular ring box; 32. Liquid inlet; 33. Moving ring; 34. Elastic reset plate; 35. Rubber sleeve; 36. Matching pipe; 101. Cooling mechanism; 201. Adjustment mechanism. Detailed Implementation

[0030] 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.

[0031] Example 1: Please refer to Figures 1-4 As shown in the embodiment of the present invention, a bevel gearbox structure with auxiliary cooling function includes a gearbox 1. The inner wall of the gearbox 1 is rotatably connected to three bevel gears 9 via a rotating shaft. The three bevel gears 9 mesh with each other. The outer wall of each bevel gear 9 is fixedly connected to a gear shaft 3. The outer wall of each gear shaft 3 slides through the interior of the gearbox 1. The interior of the gearbox 1 is filled with lubricating oil, which is in a liquid state and occupies two-thirds of the interior of the gearbox 1. A cooling mechanism 101 is fixedly installed between the interior of the gearbox 1 and the outer wall of the gear shaft 3 to cool the gear shaft 3 through the lubricating oil. An adjustment mechanism 201 is also fixedly installed inside the gearbox 1. When all the bevel gears 9 rotate at high speed, the lubricating oil inside the gearbox 1 will heat up rapidly, and the air pressure inside the gearbox 1 will gradually increase. The adjustment mechanism 201 can adjust the size of the space inside the gearbox 1 to keep the air pressure inside the gearbox 1 in a balanced state, and can also increase the flow rate of the lubricating oil to improve the cooling efficiency.

[0032] Example 2: Please refer to Figures 2-6 , Figure 9 , Figure 10As shown, the cooling mechanism 101 includes three cooling pipes 14, which are fixedly connected inside the gearbox 1. Each gear shaft 3 is rotatably connected to the interior of an adjacent cooling pipe 14 via a rotating shaft. The three cooling pipes 14 are interconnected through a connecting pipe 36. (Reference) Figure 6 The inner wall of the gearbox 1 is also fixedly connected to a return pipe 15. The return pipe 15 is fixedly connected to a nearby cooling pipe 14 through a delivery pipe 8. The inner wall of the gearbox 1 is fixedly connected to a ring box 31. The outer wall of the ring box 31 has two liquid inlets 32. The level of the lubricating oil inside the gearbox 1 is higher than the liquid inlets 32. Please see Figures 2 to 11 As shown, the adjustment mechanism 201 includes a mating block 18, which is fixedly connected to the outer wall of a nearby bevel gear 9 via a connecting arm. The mating block 18 is located inside the gearbox 1. A movable block 27 is provided on the side of the mating block 18 away from the bevel gear 9. Multiple folding arms 10 are rotatably connected between the mating block 18 and the movable block 27 via a rotating shaft. Each folding arm 10 has a weight-reducing hole on its outer wall. The multiple folding arms 10 are circumferentially distributed between the mating block 18 and the movable block 27. A deformable spring 24 is also fixedly connected between the mating block 18 and the movable block 27. The deformable spring 24 is made of shape memory metal. After high-temperature shaping treatment, the deformable spring 24 is in the form of a short spring. When the ambient temperature rises above 60 degrees Celsius, the deformable spring will deform due to the thermal shape memory effect of the shape memory metal. 24 will automatically retract, and once the temperature drops back to the initial state, it can accurately return to its original shape due to the material properties. Each folding arm 10 has a sliding ring sleeve 17 fixedly connected to its outer wall. The end of the sliding ring sleeve 17 away from the deformation spring 24 is fixedly connected to a counterweight block 23. The sliding ring sleeve 17 is made of stainless steel, which has the characteristics of high weight, small size, corrosion resistance and high temperature resistance, and is durable. The inner wall of the gearbox 1 is also provided with a rotating round tube 19. The rotating round tube 19 is fixedly connected to the mating round block 18 and the moving round block 27 through a rubber mesh 7. The mesh on the outside of the rubber mesh 7 has the structural characteristics of high density and small mesh size. When the lubricating oil is agitated inside, this fine mesh design can effectively suppress the generation of foam. The rubber mesh 7 is made of rubber, which has good corrosion resistance and high temperature resistance. Both ends of the rotating circular tube 19 are welded and fixed with abutting elastic plates 21. The outer wall of the abutting elastic plates 21 abuts against the outer wall of the annular box 31. The end of the moving circular block 27 closest to the mating circular block 18 is fixedly connected to a rubber folding sleeve 25 by bolts. The rubber folding sleeve 25 is made of rubber, which has good corrosion resistance and high temperature resistance. The deformation spring 24 is sleeved on the outer wall of the rubber folding sleeve 25. The end of the moving circular block 27 away from the rubber folding sleeve 25 is fixedly connected to a shrink tube 28. The rubber folding sleeve 25 and the shrink tube 28 are fixedly connected by a pipe (not shown in the figure). The output end of the shrink tube 28 is fixedly connected to an annular tube 29 by multiple connecting pipes 5. The multiple connecting pipes 5 are circumferentially distributed between the annular tube 29 and the annular box 31. Multiple connecting pipes 5 are also circumferentially distributed between the contraction pipe 28 and the annular pipe 29. The end of the annular pipe 29 near the annular box 31 is fixedly connected to multiple telescopic pipes 30. The multiple telescopic pipes 30 are circumferentially distributed on the outer wall of the annular pipe 29. A movable annular ring 33 is slidably connected to the inner wall of the annular box 31. An annular groove is opened inside the movable annular ring 33. Multiple fixing blocks 2 are fixedly connected to the inner wall of the annular groove. The multiple fixing blocks 2 are circumferentially distributed on the inner wall of the annular groove. Each fixing block 2 is fixedly connected to the outer wall of the annular box 31 by a connecting pipe 6. The end of the connecting pipe 6 away from the fixing block 2 is located inside the annular box 31. Each telescopic pipe 30 is fixedly connected to the movable annular ring 33 by a push rod 4. The outer wall of each push rod 4 is slidably inserted inside the annular box 31. The outer wall of the gearbox 1 is fixedly connected to a corrugated sleeve 11 by a nut. The corrugated sleeve 11 is also made of rubber. The outer wall of the gearbox 1 is also slidably fitted with a movable cover 13 with a reset function. The movable cover 13 and the gearbox 1 are fixedly connected by multiple second springs 12. At this time, the second springs 12 are in a charged state. The multiple second springs 12 are circumferentially distributed between the gearbox 1 and the movable cover 13. The corrugated sleeve 11 is located inside the movable cover 13. The inner wall of the movable cover 13 is fixedly connected to the movable circular block 27 by multiple steel wire ropes 26. The outer wall of each steel wire rope 26 slides through the interior of the mating circular block 18, the movable circular block 27 and the movable cover 13. Two elastic reset pieces 34 are fixedly connected to the outer wall of the annular box 31. Each elastic reset piece 34 is located outside a nearby liquid inlet 32. A rubber sleeve 35 is fixedly connected between the elastic reset piece 34 and the outer wall of the annular box 31. The outer wall of the elastic reset piece 34 is also provided with a mating opening. Two abutting elastic pieces 21 are also fixedly connected to the outer wall of the rotating tube 19. The outer wall of each abutting elastic piece 21 abuts against the outer wall of the annular box 31. Specifically, when all the bevel gears 9 rotate, the mating block 18 will be driven to rotate by the corresponding bevel gear 9. The mating block 18 will drive the moving block 27 to rotate through multiple folding arms 10. The folding arms 10 will drive the connecting rod 22 to rotate through the counterweight 23. The connecting rod 22 will drive the rotating tube 19 to rotate. The rotating tube 19 will drive all the abutting elastic pieces 21 to move against the outer wall of the annular box 31. When the rotating tube 19 rotates too fast, the abutting elastic pieces 21 will continuously abut against the outer wall of the elastic reset piece 34. When the elastic reset piece 34 is in elastic reset, due to the moving speed of the abutting elastic pieces 21... If the speed is too fast, the elastic reset plate 34 will remain in close contact with the outer wall of the annular box 31. Note that when the elastic reset plate 34 is in contact with the outer wall of the annular box 31, it will not block the liquid inlet 32. When the elastic plate 21 and the rotating tube 19 rotate at high speed, the lubricating oil inside the gearbox 1 will rotate on the inner wall. Relying on centrifugal force, the lubricating oil is in close contact with the inner wall of the gearbox 1. Furthermore, through the fluid effect, the lubricating oil passes through the mating port and the liquid inlet 32 ​​and enters all the cooling tubes 14. The elastic plate 21 can also push the lubricating oil, enhancing the fluidity of the lubricating oil. Then, it is discharged into the gearbox 1 through the return pipe 15. When the rotation speed of the rotating tube 19 is too slow, the slow flow of lubricating oil will result in poor cooling effect. However, when the outer wall of the abutting elastic plate 21 abuts against the outer wall of the elastic reset plate 34, the elastic reset plate 34 will rotate towards the annular box 31 and compress the rubber sleeve 35. Note that when the abutting elastic plate 21 abuts against the outer wall of the elastic reset plate 34, the abutting elastic plate 21 will seal the mating joint, preventing the lubricating oil inside the elastic reset plate 34 from leaking out. The abutting elastic plate 21 will completely seal the elastic reset plate 34 against the inner wall of the rubber sleeve 35. The lubricating oil in the part is squeezed into the cooling tube 14 to enhance the fluidity of the lubricating oil. When the elastic reset piece 34 is completely pressed against the outer wall of the annular box 31, the abutting elastic piece 21 has not completely detached from the outer wall of the mating port, indicating that the lubricating oil will not leak out. When the abutting elastic piece 21 completely detaches from the outer wall of the elastic reset piece 34, the elastic reset piece 34 resets itself by its own elasticity. The elastic reset piece 34 also pulls the rubber sleeve 35 to reset. The lubricating oil inside the gearbox 1 will return to the elastic reset piece 34 and the rubber sleeve 35 through the mating port.

[0033] The working principle of this invention is: When this invention is used, when all the bevel gears 9 rotate, the mating block 18 will be driven to rotate by the corresponding bevel gear 9. The mating block 18 will drive the moving block 27 to rotate through multiple folding arms 10. The folding arms 10 will drive the connecting rod 22 to rotate through the counterweight 23. The connecting rod 22 will drive the rotating tube 19 to rotate. The rotating tube 19 will drive all the rubber meshes 7 to rotate together. At this time, the lubricating oil inside the gearbox 1 will generate a fluid effect due to the centrifugal force of the rotating tube 19 and the rubber meshes 7. The lubricating oil will stick to the inner wall of the gearbox 1 and enter the interior of all the cooling tubes 14 through the liquid inlet 32. Then it will be discharged back into the gearbox 1 through the liquid return pipe 15 to form a cycle. When the lubricating oil flows inside the cooling tube 14, it will stick to the outer wall of the gear shaft 3 to cool the outer wall of the gear shaft 3. When the bevel gear 9 drives the rotating tube 19 to rotate faster, it means that the internal friction increases, the temperature of the lubricating oil and gearbox 1 rises, and the centrifugal force will spread all the sliding ring sleeves 17 outward. At this time, the sliding ring sleeves 17 and the counterweight 23 will move along the outer wall of the connecting rod 22, and the deformation spring 24 will contract. When the rubber folding sleeve 25 abuts against the outer wall of the mating block 18, the rubber folding sleeve 25 is squeezed and contracted, and the gas inside the rubber folding sleeve 25 will enter the contraction tube 28, causing contraction. The gas inside tube 28 will enter the annular tube 29 through the rubber mesh 7, and then enter all the telescopic tubes 30 through the annular tube 29. The telescopic tubes 30 will push the push rod 4 and the moving ring 33. The moving ring 33 will move out of the annular box 31. The lubricating oil inside the gearbox 1 will pass through the connecting tube 6 and enter the annular box 31 because it rotates in the inner wall of the gearbox 1. Then it will enter all the cooling tubes 14 through the annular box 31, increasing the fluidity of the lubricating oil and further cooling the gear shaft 3. When the bevel gear 9 rotates, the rotational speed of the bevel gear 9 is low. As mentioned above, the rotational speed of the rotating tube 19 will also decrease, and the degree of contraction of the deformable spring 24 will also decrease. When the internal lubricating oil temperature rises above 60 degrees Celsius, the deformable spring 24 will deform and contract. When the rubber folding sleeve 25 abuts against the outer wall of the mating block 18, according to the working principle mentioned above, the moving ring 33 will move out of the ring box 31, increasing the fluidity of the lubricating oil inside the cooling tube 14 and enhancing the cooling effect on the gear shaft 3. When the moving block 27 moves towards the mating block 18, it releases all the wire ropes 26. The second spring 12 releases its stored force, causing the moving cover 13 to move. The moving cover 13 disengages from the outer wall of the corrugated sleeve 11. As the speed of the bevel gear 9 increases, the air pressure inside the gearbox 1 increases, and the temperature rises. The corrugated sleeve 11 extends, increasing the internal space of the gearbox 1 and preventing the gas inside the gearbox 1 from diffusing outward and causing oil leakage. When the bevel gear 9 stops rotating... The gearbox 1 and the internal lubricating oil will cool down, and the deformable spring 24 will drive the moving block 27 and all the folding arms 10 to reset. The folding arms 10 will drive the counterweight 23 and the sliding ring sleeve 17 to reset. The moving block 27 will pull the moving sleeve cover 13 through the moving block 27. The moving sleeve cover 13 will wrap around the corrugated sleeve 11. When the gearbox 1 and the internal lubricating oil cool down, the corrugated sleeve 11 will contract, so that the gas and dust outside the gearbox 1 will return to the inside of the gearbox 1.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A bevel gearbox structure with auxiliary cooling function, comprising a gearbox (1), characterized in that, The inner wall of the gearbox (1) is rotatably connected to three bevel gears (9), which mesh with each other. Each bevel gear (9) has a gear shaft (3) fixedly connected to its outer wall. The outer wall of each gear shaft (3) slides through the inside of the gearbox (1). The inside of the gearbox (1) is filled with lubricating oil. A cooling mechanism (101) for cooling the gear shaft (3) by means of lubricating oil is fixedly installed between the inside of the gearbox (1) and the outer wall of the gear shaft (3). An adjustment mechanism (201) is also fixedly installed inside the gearbox (1). When all the bevel gears (9) rotate at high speed, the lubricating oil inside the gearbox (1) will heat up rapidly, and the air pressure inside the gearbox (1) will gradually increase. The adjustment mechanism (201) can adjust the size of the space inside the gearbox (1) so that the air pressure inside the gearbox (1) is in a balanced state, and can also increase the flow rate of the lubricating oil and improve the cooling efficiency. The adjustment mechanism (201) includes a mating block (18), which is fixedly connected to the outer wall of a nearby bevel gear (9). The mating block (18) is located inside the gearbox (1), and a movable block (27) is provided on the side of the mating block (18) away from the bevel gear (9). Multiple folding arms (10) are rotatably connected between the mating block (18) and the moving block (27). A deformation spring (24) is also fixedly connected between the mating block (18) and the moving block (27). A sliding ring sleeve (17) is fixedly connected to the outer wall of each folding arm (10). A counterweight block (23) is fixedly connected to the end of the sliding ring sleeve (17) away from the deformation spring (24). A rotating tube (19) is also provided on the inner wall of the gearbox (1). The rotating tube (19) is fixedly connected to the mating block (18) and the moving block (27) through a rubber mesh (7).

2. The bevel gearbox structure with auxiliary cooling function according to claim 1, characterized in that, The cooling mechanism (101) includes three cooling tubes (14), which are fixedly connected inside the gearbox (1), and each gear shaft (3) is rotatably connected inside a nearby cooling tube (14).

3. The bevel gearbox structure with auxiliary cooling function according to claim 2, characterized in that, The three cooling tubes (14) are interconnected by a connecting pipe (36), and a return pipe (15) is fixedly connected to the inner wall of the gearbox (1). The return pipe (15) is fixedly connected to a nearby cooling tube (14).

4. The bevel gearbox structure with auxiliary cooling function according to claim 3, characterized in that, The inner wall of the gearbox (1) is fixedly connected to a ring box (31), and the outer wall of the ring box (31) has two liquid inlets (32).

5. A bevel gearbox structure with auxiliary cooling function according to claim 1, characterized in that, Both ends of the rotating tube (19) are welded and fixed with abutting elastic plates (21). The outer wall of the abutting elastic plate (21) abuts against the outer wall of the ring box (31). The end of the moving block (27) close to the mating block (18) is fixedly connected with a rubber folding sleeve (25). The deformable spring (24) is sleeved on the outer wall of the rubber folding sleeve (25). The end of the moving block (27) away from the rubber folding sleeve (25) is fixedly connected with a shrink tube (28). The rubber folding sleeve (25) and the shrink tube (28) are fixedly connected.

6. A bevel gearbox structure with auxiliary cooling function according to claim 5, characterized in that, The output end of the contraction tube (28) is fixedly connected to a circular tube (29). The end of the circular tube (29) near the circular box (31) is fixedly connected to multiple telescopic tubes (30). A movable circular ring (33) is slidably connected to the inner wall of the circular box (31). A ring groove is opened inside the movable circular ring (33). Multiple fixed blocks (2) are fixedly connected to the inner wall of the ring groove. Each fixed block (2) is fixedly connected to the outer wall of the circular box (31) by a connecting tube (6). Each telescopic tube (30) is fixedly connected to the movable circular ring (33) by a push rod (4).

7. A bevel gearbox structure with auxiliary cooling function according to claim 1, characterized in that, The outer wall of the gearbox (1) is fixedly connected to a corrugated sleeve (11), and the outer wall of the gearbox (1) is also slidably fitted with a movable cover (13) with a reset function.

8. A bevel gearbox structure with auxiliary cooling function according to claim 7, characterized in that, The inner wall of the movable cover (13) and the movable round block (27) are fixedly connected by multiple steel wire ropes (26).

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