Gearbox running-in bench with circulating oil purification and measurement and control effects

Abstract

This invention relates to the field of testing platform technology and discloses a gearbox break-in workbench with circulating oil purification and measurement and control effects. The workbench includes a platform with a purification device on its surface. The purification device includes a carrier plate fixedly connected to the platform surface. A processing box is fixedly connected to the upper surface of the carrier plate, and an oil pump is mounted on the upper surface of the processing box. A conduit is fixedly connected to the input end of the oil pump, and a first one-way valve is fixedly connected to the end of the conduit furthest from the oil pump. In this invention, the oil extraction pipe and drain pipe, in conjunction with the oil pump, realize the extraction, filtration, and reinjection circulation of gearbox oil, ensuring efficient break-in testing of the gearbox. Simultaneously, the filter cartridge is made of transparent material, allowing the user to visually observe the gearbox oil condition and analyze the gearbox break-in status in a timely manner based on the oil's color, impurity content, etc., providing a basis for testing and adjustment.

Description

Technical Field

[0001] This invention relates to the field of testing platform technology, specifically to a gearbox break-in workbench with circulating oil purification and measurement and control effects. Background Technology

[0002] A gearbox break-in platform is a device used for breaking-in tests of gearboxes. It typically consists of a platform, motor, brake, universal coupling, etc. The motor provides power input to the gearbox's drive shaft, while the brake simulates real-world operating conditions, providing load output to the output shaft. This device allows the gearbox to be operated under specific conditions after assembly or repair, enabling better break-in of internal components, testing its performance against standards, and performing various functional tests such as acceleration, deceleration, and shifting. This allows for the timely detection of potential problems and ensures the quality and reliability of the gearbox.

[0003] Currently, most transmission break-in benches only test the quality of the transmission during use. However, this process neglects the metal debris generated by the wear of parts inside the transmission, which affects the test results. In addition, prolonged operation can cause the transmission oil temperature to become too high, affecting the performance and service life of the transmission. To address this, we propose a transmission break-in bench with circulating oil purification and measurement and control functions. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a transmission break-in bench with circulating oil purification and measurement and control effects. This solves the problem that existing transmission break-in benches often only test the quality of the transmission, but neglect the metal debris generated by the wear of parts inside the transmission, which affects the test results. In addition, prolonged operation can cause the transmission oil temperature to become too high, affecting the transmission's performance and service life.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gearbox break-in workbench with circulating oil purification and monitoring effects, comprising a table surface, a purification device disposed on the surface of the table surface, the purification device comprising a carrier plate, the carrier plate being fixedly connected to the surface of the table surface, a processing box being fixedly connected to the upper surface of the carrier plate, an oil pump being mounted on the upper surface of the processing box, a conduit being fixedly connected to the input end of the oil pump, a first one-way valve being fixedly connected to the end of the conduit away from the oil pump, an oil extraction pipe being fixedly connected to the end of the first one-way valve away from the conduit, and a first connector being mounted on one side of the processing box. The first connector is equipped with a first connecting pipe, and a second one-way valve is installed at the end of the first connecting pipe away from the first connector. A filter cartridge is installed at the upper end of the first one-way valve, and a sealing cap is threaded to the upper end of the filter cartridge. A second connecting pipe is installed at the upper end of the sealing cap. The oil extraction pipe and oil discharge pipe, together with the oil extraction pump and oil discharge pump, realize the extraction, filtration, and reinjection circulation of transmission oil, ensuring efficient break-in testing of the transmission. At the same time, the filter cartridge is made of transparent material, allowing users to directly observe the condition of the transmission oil. Based on the color of the oil, the content of impurities, and other conditions, users can analyze the break-in status of the transmission in a timely manner, providing a basis for testing and adjustment.

[0008] Preferably, a storage box is fixedly connected to the upper surface of the tabletop, a second connector is fixedly connected to the upper surface of the storage box, one end of the second connecting pipe is connected to the second connector, an oil pump is fixedly connected to the side of the storage box near the tabletop, and an oil drain pipe is fixedly connected to the output end of the oil pump.

[0009] Preferably, a compression spring is fixedly connected to the lower surface of the sealing cover, and a positioning ring is fixedly connected to the lower end of the compression spring. The positioning ring is adapted to the inner wall of the filter cylinder. A slot is opened on the surface of the positioning ring, and a filter screen is inserted into the slot. A slot is opened on the surface of the positioning ring, and a pull block is fixedly connected to the upper surface of the filter screen. After unscrewing the sealing cover, the compression spring, positioning ring, and filter screen can be quickly pulled out from the filter cylinder for cleaning or replacement of the filter screen and cleaning of the filter cylinder. The maintenance operation is simple and quick, reducing maintenance difficulty and time costs, and ensuring long-term stable operation of the equipment.

[0010] Preferably, there are three compression springs, three positioning rings, and three filter screens, which are vertically distributed among each other.

[0011] Preferably, a pressure stabilizing cylinder is fixedly connected to the upper surface of the processing box. There are four pressure stabilizing cylinders, which are connected to the interior of the processing box. A piston block is slidably connected to the inner wall of the pressure stabilizing cylinder. A support rod is fixedly connected between every two piston blocks, and a positioning plate is fixedly connected to the support rod. A stabilizing rod is fixedly connected to the side of the two support rods that are close to each other. A tension spring is fixedly connected to the lower surface of the positioning plate. The lower end of the tension spring is fixedly connected to the upper surface of the processing box. The pressure regulating structure composed of the processing box, piston blocks, tension springs, and other components ensures that the transmission oil flows continuously and stably into the filter cartridge. After being filtered by three filter screens, impurities are effectively removed, ensuring the cleanliness of the transmission oil and improving the break-in quality and service life of the transmission.

[0012] Preferably, a pull rope is fixedly connected to the upper surface of the processing box, and a hook is fixedly connected to the end of the pull rope away from the processing box. A support plate is fixedly connected to the side of the processing box near the storage box, and a sleeve is fixedly connected to the upper surface of the support plate. The lower end of the filter cartridge is inserted into the sleeve and fastened to the stabilizer rod by the hook, effectively preventing displacement of the stabilizer rod, support rod and piston block.

[0013] Preferably, both the processing box and the storage box are fixedly connected to heat pipes, and the heat pipes are fixedly connected to fins. The upper surface of the storage box is equipped with an oil inlet, and the oil inlet is covered with a cap. The combination of heat pipes and fins can quickly absorb heat from the transmission oil, control the motor to drive the fan blades to rotate, accelerate airflow, and effectively remove the heat from the heat pipes and fins, achieving efficient heat dissipation of the transmission oil. At the same time, the airflow also provides synchronous heat dissipation for the transmission, preventing the transmission from being affected by excessively high oil temperature, thus ensuring the stable progress of the break-in and testing process.

[0014] Preferably, a stabilizing frame is fixedly connected to the upper surface of the platform, and a drive motor is installed inside the stabilizing frame. A positioning device is provided on the upper surface of the platform, and the positioning device includes a placement plate that is slidably connected to the upper surface of the platform. An assembly is fixedly connected to the upper surface of the platform, and a telescopic rod is installed inside the assembly. A push plate is fixedly connected to the end of the placement plate near the drive motor, and an mounting block is fixedly connected to the upper surface of the push plate. The drive end of the telescopic rod is fixedly connected to the surface of the push plate. The gearbox is installed on the placement plate and the mounting block by bolts. By pushing the placement plate with the telescopic rod, the gearbox and the drive motor can be quickly connected. The operation is simple, saves test preparation time, and improves the efficiency of the break-in test.

[0015] Preferably, the surface of the processing box is provided with a heat dissipation device, which includes two guide tubes. The two guide tubes are fixedly connected to the processing box and the storage box on the side near the table surface, respectively. A support rod is fixedly connected to the inner wall of the guide tube, and a collar is fixedly connected to the surface of the support rod. A control motor is fixedly connected to the inner wall of the collar, and a fan blade is fixedly connected to the drive end of the control motor.

[0016] Preferably, a positioning frame is fixedly connected to the upper surface of the table, and an air guide shroud is fixedly connected to the side of the positioning frame away from the processing box, so as to facilitate the rapid flow of air through the gearbox and realize the heat dissipation operation of the gearbox.

[0017] In summary, the technical effects and advantages of this invention are as follows:

[0018] 1. In this invention, the oil extraction pipe and oil drain pipe, together with the oil extraction pump and oil drain pump, realize the extraction, filtration and reinjection circulation of transmission oil, ensuring efficient break-in testing of the transmission. At the same time, the filter cartridge is made of transparent material, allowing users to intuitively observe the state of the transmission oil. Based on the color of the oil, the content of impurities and other conditions, the break-in status of the transmission can be analyzed in a timely manner, providing a basis for testing and adjustment.

[0019] 2. In this invention, the combination of heat pipe and fins can quickly absorb heat from the transmission oil, control the motor to drive the fan blades to rotate, accelerate airflow, effectively remove heat from the heat pipe and fins, achieve efficient heat dissipation of the transmission oil, and at the same time, the airflow also cools the transmission synchronously, preventing the transmission from being affected by excessively high oil temperature, thus ensuring the stable progress of the break-in testing process.

[0020] 3. In this invention, after unscrewing the sealing cap, the compression spring, positioning ring and filter screen can be quickly pulled out from the filter cartridge for cleaning or replacement of the filter screen and cleaning of the filter cartridge. The maintenance operation is simple and quick, reducing maintenance difficulty and time cost, and ensuring long-term stable operation of the equipment.

[0021] 4. In this invention, the pressure regulating structure composed of components such as the machining box, piston block, and tension spring ensures that the transmission oil flows continuously and stably into the filter cartridge. After being filtered by three filter screens, impurities are effectively removed, ensuring the cleanliness of the transmission oil and improving the break-in quality and service life of the transmission. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a gearbox break-in workbench with circulating oil purification and measurement and control effects according to the present invention.

[0023] Figure 2 This is a side view of a gearbox break-in workbench with circulating oil purification and monitoring effects according to the present invention.

[0024] Figure 3 This invention relates to a gearbox break-in workbench with circulating oil purification and monitoring effects. Figure 2 A schematic diagram of the structure at point A;

[0025] Figure 4 This is a schematic diagram of the purification device in a gearbox break-in workbench with circulating oil purification and monitoring effects according to the present invention.

[0026] Figure 5 This invention relates to a gearbox break-in workbench with circulating oil purification and monitoring effects. Figure 4 A partial diagram of the exploded structure;

[0027] Figure 6 This invention relates to a gearbox break-in workbench with circulating oil purification and monitoring effects. Figure 4 A schematic diagram of the cross-sectional structure;

[0028] Figure 7 This invention relates to a gearbox break-in workbench with circulating oil purification and monitoring effects. Figure 4 A partial diagram of the exploded structure;

[0029] Figure 8 This is a schematic diagram of the filter cartridge in a gearbox break-in workbench with circulating oil purification and measurement and control effects according to the present invention.

[0030] Figure 9 This invention relates to a gearbox break-in workbench with circulating oil purification and monitoring effects. Figure 8 A schematic diagram of the structure at point B.

[0031] In the diagram: 1. Tabletop; 2. Stabilizer; 3. Drive motor; 4. Purification device; 41. Processing box; 42. Storage box; 43. Heat pipe; 44. Fin; 45. Pressure stabilizing cylinder; 46. Carrier plate; 47. Piston block; 48. Support rod; 49. Positioning plate; 410. Tension spring; 411. Stabilizer bar; 412. Hook; 413. Pull rope; 414. Oil pump; 415. Conduit; 416. First check valve; 417. Oil suction pipe; 418. Oil discharge pump; 419. Oil discharge pipe; 420. Support plate; 421. Compression sleeve; 422. First connector; 423. First connection 424. Pipe; 425. Second one-way valve; 426. Second connecting pipe; 427. Second connector; 428. Filter cartridge; 429. Sealing cover; 430. Compression spring; 431. Cover; 432. Oil inlet; 433. Positioning ring; 434. Filter screen; 435. Pull block; 436. Slot; 437. Slot; 5. Positioning device; 51. Placement plate; 52. Assembly kit; 53. Telescopic rod; 54. Push plate; 55. Mounting block; 6. Heat dissipation device; 61. Flow guide tube; 62. Support rod; 63. Collar; 64. Control motor; 65. Fan blade; 66. Positioning frame; 67. Air guide cover. Detailed Implementation

[0032] 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.

[0033] refer to Figures 1-9The gearbox break-in workbench shown includes a table surface 1, on which a purification device 4 is provided. The purification device 4 includes a carrier plate 46, which is fixedly connected to the surface of the table surface 1. A processing box 41 is fixedly connected to the upper surface of the carrier plate 46. An oil pump 414 is mounted on the upper surface of the processing box 41. A conduit 415 is fixedly connected to the input end of the oil pump 414. A first one-way valve 416 is fixedly connected to the end of the conduit 415 away from the oil pump 414. An oil extraction pipe 417 is fixedly connected to the end of the first one-way valve 416 away from the conduit 415. A first connector 422 is installed on one side of the processing box 41. A first connecting pipe 417 is installed on the first connector 422. Connector 423 has a second one-way valve 424 installed at the end of the first connecting pipe 423 away from the first connector 422. A filter cartridge 427 is installed at the upper end of the first one-way valve 416. A sealing cap 428 is threaded to the upper end of the filter cartridge 427. A second connecting pipe 425 is installed at the upper end of the sealing cap 428. The oil extraction pipe 417 and the oil discharge pipe 419, together with the oil extraction pump 414 and the oil discharge pump 418, realize the extraction, filtration and reinjection circulation of transmission oil, ensuring efficient break-in testing of the transmission. At the same time, the filter cartridge 427 is made of transparent material, allowing users to directly observe the condition of the transmission oil. Based on the color of the oil, the impurity content and other conditions, the break-in condition of the transmission can be analyzed in a timely manner, providing a basis for testing and adjustment.

[0034] Among them, a storage box 42 is fixedly connected to the upper surface of the platform 1, a second connector 426 is fixedly connected to the upper surface of the storage box 42, one end of the second connecting pipe 425 is connected to the second connector 426, an oil discharge pump 418 is fixedly connected to the side of the storage box 42 near the platform 1, and an oil discharge pipe 419 is fixedly connected to the output end of the oil discharge pump 418.

[0035] A compression spring 429 is fixedly connected to the lower surface of the sealing cover 428. A positioning ring 432 is fixedly connected to the lower end of the compression spring 429. The positioning ring 432 is adapted to the inner wall of the filter cartridge 427. A slot 435 is opened on the surface of the positioning ring 432, and a filter screen 433 is inserted into the slot 435. A slot 436 is opened on the surface of the positioning ring 432. A pull block 434 is fixedly connected to the upper surface of the filter screen 433. After unscrewing the sealing cover 428, the compression spring 429, the positioning ring 432 and the filter screen 433 can be quickly pulled out from the filter cartridge 427 for cleaning or replacement of the filter screen 433 and cleaning of the filter cartridge 427. The maintenance operation is simple and quick, reducing maintenance difficulty and time cost, and ensuring long-term stable operation of the equipment.

[0036] The compression spring 429, the positioning ring 432, and the filter screen 433 are all in three units, and the three compression springs 429, the positioning rings 432, and the filter screen 433 are vertically distributed among them.

[0037] The upper surface of the processing box 41 is fixedly connected to a pressure stabilizing cylinder 45. There are four pressure stabilizing cylinders 45, which are connected to the interior of the processing box 41. A piston block 47 is slidably connected to the inner wall of the pressure stabilizing cylinder 45. A support rod 48 is fixedly connected between every two piston blocks 47, and a positioning plate 49 is fixedly connected to the support rod 48. A stabilizing rod 411 is fixedly connected to the side of the two support rods 48 that are close to each other. A tension spring 410 is fixedly connected to the lower surface of the positioning plate 49. The lower end of the tension spring 410 is fixedly connected to the upper surface of the processing box 41. The pressure regulating structure composed of the processing box 41, piston blocks 47, tension springs 410 and other components ensures that the transmission oil flows continuously and stably into the filter cartridge 427. After being filtered by three filter screens 433, impurities are effectively removed, ensuring the cleanliness of the transmission oil and improving the break-in quality and service life of the transmission.

[0038] The upper surface of the processing box 41 is fixedly connected to a pull rope 413, and the end of the pull rope 413 away from the processing box 41 is fixedly connected to a hook 412. The side of the processing box 41 near the storage box 42 is fixedly connected to a support plate 420, and the upper surface of the support plate 420 is fixedly connected to a sleeve 421. The lower end of the filter cartridge 427 is inserted into the sleeve 421 and fastened to the stabilizer rod 411 by the hook 412, effectively preventing the stabilizer rod 411, the support rod 48 and the piston block 47 from shifting.

[0039] Both the processing box 41 and the storage box 42 are fixedly connected to heat pipes 43, and fins 44 are fixedly connected inside the heat pipes 43. The upper surface of the storage box 42 is equipped with an oil inlet 431, and a cover 430 is installed on the oil inlet 431. The combination of heat pipes 43 and fins 44 can quickly absorb the heat of the transmission oil, control the motor 64 to drive the fan blades 65 to rotate, accelerate the air flow, and effectively remove the heat on the heat pipes 43 and fins 44, thereby achieving efficient heat dissipation of the transmission oil. At the same time, the air flow also provides synchronous heat dissipation for the transmission, preventing the transmission from being affected by excessively high oil temperature, thus ensuring the stable progress of the break-in and testing process.

[0040] The upper surface of the platform 1 is fixedly connected to a stabilizing frame 2, and a drive motor 3 is installed inside the stabilizing frame 2. A positioning device 5 is provided on the upper surface of the platform 1. The positioning device 5 includes a placement plate 51, which is slidably connected to the upper surface of the platform 1. An mounting bracket 52 is fixedly connected to the upper surface of the platform 1, and a telescopic rod 53 is installed inside the mounting bracket 52. A push plate 54 is fixedly connected to one end of the placement plate 51 near the drive motor 3. An mounting block 55 is fixedly connected to the upper surface of the push plate 54. The driving end of the telescopic rod 53 is fixedly connected to the surface of the push plate 54. The gearbox is installed on the placement plate 51 and the mounting block 55 by bolts. With the telescopic rod 53 pushing the placement plate 51, the gearbox and the drive motor 3 can be quickly connected. The operation is simple, saves the test preparation time, and improves the efficiency of the break-in test.

[0041] The surface of the processing box 41 is provided with a heat dissipation device 6, which includes two guide tubes 61. The two guide tubes 61 are fixedly connected to the processing box 41 and the storage box 42 on the side near the table 1, respectively. A support rod 62 is fixedly connected to the inner wall of the guide tube 61. A collar 63 is fixedly connected to the surface of the support rod 62. A control motor 64 is fixedly connected to the inner wall of the collar 63. A fan blade 65 is fixedly connected to the drive end of the control motor 64.

[0042] The upper surface of the table 1 is fixedly connected to a positioning frame 66, and the side of the positioning frame 66 away from the processing box 41 is fixedly connected to a wind guide shroud 67, which facilitates the rapid flow of air through the gearbox to achieve heat dissipation of the gearbox.

[0043] The working principle of this invention is as follows: When performing the break-in test of the gearbox, the gearbox is placed on the placement plate 51 and installed on the placement plate 51 and the mounting block 55 with bolts. Then, the telescopic rod 53 is controlled to push the placement plate 51 and the gearbox toward the drive motor 3. Then, the drive end of the drive motor 3 is connected to the input shaft of the gearbox through the coupling. Then, the oil suction pipe 417 is connected to the oil drain port of the gearbox and the oil drain pipe 419 is connected to the oil filler port of the gearbox. The cover 430 is opened and a certain amount of gearbox oil is injected into the storage tank 42 through the oil filler port 431.

[0044] During maintenance, the transmission is driven by drive motor 3. After a break-in period, drive motor 3 is turned off, and transmission fluid is drawn from the transmission into the processing tank 41 via oil pump 414 and oil pipe 417. The pressure in the processing tank 41 increases, and then piston block 47 pushes positioning plate 49 upward via support rod 48. The tension spring 410 is deformed by force, thus storing the pressure. Subsequently, the transmission fluid in the processing tank 41 flows into the first connecting pipe 423 through the first connector 422 and enters the filter cartridge 427 through the second one-way valve 424. At the same time, the spring pulls the positioning plate 49 downward, thereby causing the support rod 48 and piston block 47 to move downward. The piston block 47 then applies pressure to the processing tank 41 and pushes the transmission fluid again, ensuring that the transmission fluid continues to enter the filter cartridge 427, thus completing the transmission fluid maintenance. After the oil is extracted, the oil pump 414 is turned off, and the transmission oil in the storage tank 42 is injected into the transmission through the oil discharge pump 418. At the same time, the pressure in the storage tank 42 decreases, and the transmission oil in the filter cartridge 427 is drawn in through the second connector 426 and the second connecting pipe 425. Then the transmission oil passes through three filter screens 433 in sequence. During this process, the transmission oil pushes the filter screens 433 and the positioning ring 432 upward, and the compression spring 429 is deformed by force. At the same time, the compression spring 429 pushes the filter screens 433 and the positioning ring 432 downward, thereby accelerating the filtration operation of the transmission oil. Since the filter cartridge 427 is transparent, the user can observe the state of the transmission oil in time and analyze the break-in state of the transmission. After the process, the transmission oil enters the storage tank 42 through the second connecting pipe 425 and the second connector 426 to complete the collection operation.

[0045] When warm transmission fluid enters the processing tank 41 and storage tank 42, it first comes into contact with the heat pipe 43. The heat pipe 43 quickly absorbs the heat of the transmission fluid and conducts it to the fins 44. Then, the control motor 64 is turned on, which drives the fan blade 65 to rotate. The fan blade 65 drives the air to flow out quickly from inside the heat pipe 43. At the same time, the air carries the heat on the heat pipe 43 and the fins 44, thus cooling the heat pipe 43 and the fins 44. As the fan blade 65 drives the air around the transmission to flow quickly through the heat pipe 43, the air on one side of the transmission flows into the area around the transmission through the air guide 67 and the positioning bracket 66, thus simultaneously cooling the transmission. After the transmission fluid is cooled, it is easy to re-inject into the transmission. By repeating the above operation, the transmission break-in process can be continuously carried out.

[0046] After the break-in process is complete, hook 412 is fastened onto stabilizer bar 411 to restrict the displacement of stabilizer bar 411, strut 48, and piston block 47. Transmission fluid is then drawn from the transmission using oil pump 414. Under pressure, the transmission fluid directly enters filter cartridge 427 for filtration. After all transmission fluid has been filtered, it enters storage tank 42. Oil pump 414 is then turned off. Subsequently, oil suction pipe 417 and drain pipe 419 are removed, and the first connecting pipe 423 and the second connecting pipe 425 are connected from the first connector 414. Remove the 22 and second connector 426, then unscrew the sealing cover 428 and pull the sealing cover 428 upwards to pull out the compression spring 429, positioning ring 432 and filter screen 433. Then pull the pull block 434 to pull out the filter screen 433 and clean or replace the filter screen 433. Then clean the filter cartridge 427. After completing the operation, put the compression spring 429, positioning ring 432 and filter screen 433 back into the filter cartridge 427 and screw the sealing cover 428 back on to facilitate the next operation of the equipment.

[0047] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gearbox running-in platform with circulating oil purification and monitoring effect, comprising a table top (1), characterized in that: The surface of the table (1) is provided with a purification device (4), the purification device (4) includes a carrier plate (46), the carrier plate (46) is fixedly connected with the surface of the table (1), the upper surface of the carrier plate (46) is fixedly connected with a processing box (41), the upper surface of the processing box (41) is provided with an oil pump (414), the input end of the oil pump (414) is fixedly connected with a conduit (415), the end of the conduit (415) away from the oil pump (414) is fixedly connected with a first check valve (416), the end of the first check valve (416) away from the conduit (415) is fixedly connected with an oil extraction pipe (417), one side of the processing box (41) is provided with a first joint (422), the first joint (422) is provided with a first connecting pipe (423), the end of the first connecting pipe (423) away from the first joint (422) is provided with a second check valve (424), the upper end of the first check valve (416) is provided with a filter cartridge (427), the upper end of the filter cartridge (427) is threadedly connected with a sealing cover (428), the upper end of the sealing cover (428) is provided with a second connecting pipe (425); The upper surface of the table (1) is fixedly connected with a storage box (42), the upper surface of the storage box (42) is fixedly connected with a second joint (426), one end of the second connecting pipe (425) is connected with the second joint (426), one side of the storage box (42) close to the table (1) is fixedly connected with an oil discharge pump (418), the output end of the oil discharge pump (418) is fixedly connected with an oil discharge pipe (419); The lower surface of the sealing cover (428) is fixedly connected with a compression spring (429), the lower end of the compression spring (429) is fixedly connected with a positioning ring (432), the positioning ring (432) is matched with the inner wall of the filter cartridge (427), the surface of the positioning ring (432) is provided with a slot (435), the slot (435) is provided with a filter screen (433), the surface of the positioning ring (432) is provided with a clamping groove (436), the upper surface of the filter screen (433) is fixedly connected with a pull block (434); The number of the compression spring (429), the positioning ring (432) and the filter screen (433) is three, the three compression springs (429), the positioning rings (432) and the filter screens (433) are vertically distributed. The upper surface of the processing box (41) is fixedly connected with four stable pressure cylinders (45), which are communicated with the inside of the processing box (41), the inner wall of the stable pressure cylinder (45) is slidably connected with a piston block (47), every two piston blocks (47) are fixedly connected with a supporting rod (48), and the supporting rod (48) is fixedly connected with a positioning plate (49), the side of the two supporting rods (48) close to each other is fixedly connected with a stabilizing rod (411), the lower surface of the positioning plate (49) is fixedly connected with a tension spring (410), and the lower end of the tension spring (410) is fixedly connected with the upper surface of the processing box (41).

2. The gearbox running-in bench with circulating oil purification and measurement and control effects according to claim 1, characterized in that: The upper surface of the processing box (41) is fixedly connected with a pull rope (413), one end of the pull rope (413) away from the processing box (41) is fixedly connected with a clamping hook (412), one side of the processing box (41) close to the storage box (42) is fixedly connected with a supporting plate (420), and the upper surface of the supporting plate (420) is fixedly connected with a clamping sleeve (421), and the lower end of the filter cylinder (427) is inserted into the clamping sleeve (421).

3. The gearbox running-in bench with circulating oil purification and measurement and control effects according to claim 1, characterized in that: The inside of the processing box (41) and the storage box (42) is fixedly connected with a heat conducting pipe (43), and the inside of the heat conducting pipe (43) is fixedly connected with a fin (44), the upper surface of the storage box (42) is provided with an oil inlet (431), and the oil inlet (431) is provided with a cover (430).

4. The gearbox running-in bench with circulating oil purification and measurement and control effects according to claim 1, characterized in that: The upper surface of the table top (1) is fixedly connected with a stabilizing frame (2), the inside of the stabilizing frame (2) is provided with a driving motor (3), the upper surface of the table top (1) is provided with a positioning device (5), the positioning device (5) comprises a placing plate (51), the placing plate (51) is slidably connected with the upper surface of the table top (1), the upper surface of the table top (1) is fixedly connected with an assembling sleeve (52), the inside of the assembling sleeve (52) is provided with a telescopic rod (53), one end of the placing plate (51) close to the driving motor (3) is fixedly connected with a push plate (54), the upper surface of the push plate (54) is fixedly connected with a mounting block (55), and the driving end of the telescopic rod (53) is fixedly connected with the surface of the push plate (54).

5. The gearbox running-in bench with circulating oil purification and measurement and control effects according to claim 1, characterized in that: The surface of the processing box (41) is provided with a heat dissipation device (6), the heat dissipation device (6) comprises two flow guide cylinders (61), the two flow guide cylinders (61) are fixedly connected with the processing box (41) and the storage box (42) on the side close to the table top (1), the inner wall of the flow guide cylinder (61) is fixedly connected with a supporting rod (62), the surface of the supporting rod (62) is fixedly connected with a sleeve ring (63), the inner wall of the sleeve ring (63) is fixedly connected with a control motor (64), and the driving end of the control motor (64) is fixedly connected with a fan blade (65).

6. The gearbox running-in bench with circulating oil purification and measurement and control effects according to claim 5, characterized in that: The upper surface of the table top (1) is fixedly connected with a positioning frame (66), and the side of the positioning frame (66) away from the processing box (41) is fixedly connected with a wind scooper (67).

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