Rail transit vehicle gear box with automatic oil change

Abstract

The present application relates to the technical field of gear box, and proposes an automatic oil changing rail transit vehicle gear box, which comprises a box shell, a gear shaft and a suspension support are installed on the box shell, a mounting seat is welded and fixed at the bottom of the box shell, a first fixed plate is welded and fixed on the box shell, a first processing cylinder is welded and fixed at the other end of the first fixed plate, a second fixed plate is welded and fixed at the top side end of the first processing cylinder, a supporting rod is welded and fixed on the bottom end face of the second fixed plate, a second processing cylinder is fixedly connected to the bottom end of the first processing cylinder, a third processing cylinder is fixedly connected to the bottom end of the second processing cylinder, and an automatic maintenance assembly is installed in the third processing cylinder. The present application solves the problem that the gear box in the prior art cannot automatically and uniformly cool and improve the performance of the lubricating oil during long-term use, and cannot automatically, conveniently and stably replace the lubricating oil.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gearboxes, in particular to an automatic oil changing gearbox for rail transit vehicles. BACKGROUND

[0002] With the rapid development of urban transportation and the continuous pursuit of travel efficiency, rail transit, as an efficient and environmentally friendly mode of transportation, is increasingly favored by people. The gearbox is a key component for power transmission in rail transit, and the service reliability of the gearbox will directly affect the safety of train operation and the safety of passengers' life and property. The gearbox is composed of a gearbox body, gears, bearings, shaft couplings, hanging devices, sealing fasteners, etc.

[0003] Due to the large friction between the gears of the gearbox, the gearbox needs to be lubricated with oil. Good lubrication performance of the gearbox can not only ensure safe transmission between gears, but also ensure efficient and stable operation of the subway train. However, in the actual working process of the existing gearbox for rail transit vehicles, although the internal mechanical parts of the gearbox can be lubricated with lubricating oil, the lubricating oil cannot be automatically and uniformly cooled and its performance cannot be improved during long-term use. Therefore, after long-term contact with the gears, the lubricating oil is prone to overheating and deterioration. After a period of use, the additives in the lubricating oil will be depleted, the oil will deteriorate, and the performance of the oil will decrease, including increased viscosity, degraded additives, etc. Therefore, the staff needs to frequently replace the lubricating oil in the gearbox. At the same time, the existing gearbox cannot automatically and conveniently replace the lubricating oil during actual work, and the gearbox needs to be stopped to replace the lubricating oil, which can easily affect the working efficiency of the gearbox. Therefore, an automatic oil changing gearbox for rail transit vehicles is needed to meet the needs of users. SUMMARY

[0004] The present application provides an automatic oil changing gearbox for rail transit vehicles, which solves the problem that the gearbox in the related art cannot automatically and uniformly cool and improve the performance of the lubricating oil during long-term use, and cannot automatically and conveniently replace the lubricating oil.

[0005] The technical solution of the present application is as follows:

[0006] The utility model provides an automatic oil change rail transit vehicle gear box, including the box shell, gear shaft and suspension support are installed on the box shell, the box shell is provided with the oil inlet and the oil outlet, the bottom of box shell is welded fixed with the mounting base, the first fixed plate is welded fixed on the box shell, the other end of first fixed plate is welded fixed with the first processing cylinder, the top side end of first processing cylinder is welded fixed with the second fixed plate, the bottom end surface of second fixed plate is welded fixed with the support rod, the bottom end of support rod is welded fixed on the mounting base, the bottom end of first processing cylinder is fixedly connected with the second processing cylinder, the bottom end of second processing cylinder is fixedly connected with the third processing cylinder, automatic maintenance assembly is installed in the third processing cylinder, performance promotion assembly is installed in the second processing cylinder.

[0007] As a preferred scheme of the utility model, wherein: the first processing cylinder is welded with a first partition plate, the top side end of the first processing cylinder is welded with a return spring, the other end of the return spring is welded with a clamping rod, the clamping rod is slidingly connected in the first processing cylinder, a sealing plate is slidingly connected in the first processing cylinder, a clamping groove is formed in the side end of the sealing plate, the end of the clamping rod is clamped and connected in the clamping groove, hydraulic rods are installed on the first fixed plate and the second fixed plate, the bottom end of the hydraulic rod is fixedly connected with an oil change tank, a sealing gasket is fixedly connected on the outer end surface of the oil change tank, a second partition plate is welded in the oil change tank, a first feeding pipe and a first conveying pipe are connected on the side end of the oil change tank, a second conveying pipe is connected on the bottom side end of the third processing cylinder, a first electromagnetic valve is installed on the second conveying pipe, a second feeding pipe is connected on the top side end of the third processing cylinder, a third feeding pipe is connected on the top side end of the oil change tank, a discharge pipe is connected on the bottom side end of the oil change tank, a second electromagnetic valve is installed on the third feeding pipe and the discharge pipe;

[0008] The diameter of the first processing cylinder, the diameter of the second processing cylinder and the diameter of the third processing cylinder are the same, the second processing cylinder is made of transparent acrylic material, the first partition plate is in the shape of a cross, the side end surface of the sealing plate is in close contact with the inner wall of the first processing cylinder, the bottom end surface of the sealing plate is in close contact with the top end surface of the first partition plate, the clamping grooves are symmetrically distributed on both sides of the sealing plate, and the clamping grooves correspond to the clamping rods one by one.

[0009] In a preferred embodiment of the present invention, the automatic maintenance component includes a first oil pump and a second oil pump. The first oil pump is installed on the top side of the third processing cylinder, and the second oil pump is installed on the bottom side of the third processing cylinder. A first oil pipe is connected to the flange of the first oil pump, one end of which is connected to the top side of the third processing cylinder, and the other end of which is connected to the oil drain port. A second oil pipe is connected to the flange of the second oil pump, one end of which is connected to the bottom side of the third processing cylinder, and the other end of which is connected to the oil inlet port. A cooling plate is installed on the side of the third processing cylinder, and a small motor is installed at the bottom of the third processing cylinder. The cooling plates are symmetrically distributed on both sides of the third processing cylinder, and an oil filter is installed on the first oil pipe.

[0010] In a preferred embodiment of the present invention, the output shaft of the small motor is rotatably connected to the bottom of the third processing cylinder via a sealed bearing. A rotating plate and a connecting plate are fixedly connected to the output shaft of the small motor. A rotating shaft is rotatably connected to the connecting plate. A fixing block is fixedly connected to the rotating shaft. A first traction rod is hinged to the fixing block. A second traction rod is rotatably connected to the other end of the first traction rod. A sleeve is hinged to the other end of the second traction rod. The sleeve is fitted onto the rotating shaft. A stirring rod is fixedly connected to the sleeve. A connecting spring is fixedly connected to the fixing block. The other end of the connecting spring is fixedly connected to the end of the sleeve. The vertical center lines of the motor output shaft, the rotating plate, the connecting plate, and the third processing cylinder are all located on the same vertical line. The connecting plate is in contact with the inner bottom surface of the third processing cylinder. The connecting plate is in the shape of a cross. There are four rotating shafts, which are distributed at equal angles on the connecting plate. There are two sets of first traction rods, with two first traction rods in each set. The two sets of first traction rods are symmetrically distributed on the upper and lower sides of the fixed block, and each set of first traction rods is symmetrically distributed on the left and right sides of the fixed block. The first traction rods correspond one-to-one with the second traction rods. The stirring rods are equidistantly distributed on both sides of the sleeve.

[0011] In a preferred embodiment of the present invention, a connecting plate is rotatably connected to the rotating shaft via a bearing, the connecting plate is rotatably connected to the top end of the third processing cylinder via a bearing, a circular gear is fixedly connected to the top end of the rotating shaft, an internal gear is meshed with the circular gear, the internal gear is fixedly connected to the inner wall of the second processing cylinder, and the top end face of the connecting plate is flush with the top end face of the third processing cylinder.

[0012] In a preferred embodiment of the present invention, the performance enhancement component includes a flow guide frame, which is rotatably connected to the inner wall of the second processing cylinder via a bearing. The bottom end of the flow guide frame is fixedly connected to the connecting plate. A fixed mesh plate is fixedly connected to the inner bottom end of the flow guide frame. A reciprocating screw is fixedly connected to the fixed mesh plate. A support plate is threaded onto the reciprocating screw. A guide block is fixedly connected to the support plate. The bottom end face of the flow guide frame, the bottom end face of the fixed mesh plate, and the bottom end face of the connecting plate are located on the same plane. The reciprocating screw is fixed to the center of the fixed mesh plate and connected to the center of the support plate. The bottom of the support plate is cross-shaped. Four guide blocks are provided, and the four guide blocks are distributed at equal angles on the support plate.

[0013] In a preferred embodiment of the present invention, the guide block has a feeding groove on its side end, a one-way threaded rod is rotatably connected to the top end of the guide block, a transmission plate is threadedly connected to the one-way threaded rod, an adjusting plate is fixedly connected to the bottom end of the transmission plate, the adjusting plate is slidably connected in the feeding groove, a guide frame is fixedly connected to the bottom of the first processing cylinder, a sealing cylinder is fixedly connected to the inner wall of the guide frame, the guide block is slidably connected in the sealing cylinder, and a mixing rod is fixedly connected to the reciprocating screw.

[0014] In a preferred embodiment of the present invention, the feeding troughs are symmetrically distributed on both sides of the guide block, the inner bottom surface of the feeding troughs is inclined, the one-way threaded rod is connected to the middle part of the transmission plate, the adjusting plates are symmetrically distributed on both sides of the bottom of the transmission plate, the adjusting plates are in contact with the inner wall of the feeding troughs, the cross-section of the adjusting plates is "L" shaped, the outer end face of the guide block is in contact with the inner wall of the sealing cylinder, and the mixing rods are equidistantly distributed at the bottom of the reciprocating screw.

[0015] In a preferred embodiment of the present invention, the bottom end of the hydraulic rod is fixed to the top middle part of the oil change tank, the cross-section of the oil change tank is fan-shaped, the oil change tanks are symmetrically distributed on both sides of the third processing cylinder, the outer wall of the third processing cylinder is in contact with the sealing gasket, and the oil change tanks correspond one-to-one with the hydraulic rods.

[0016] In a preferred embodiment of the present invention, the length of the oil change tank is greater than the length of the third processing cylinder, the side end face of the second conveying pipe and the side end face of the second feed pipe are flush with the side end face of the third processing cylinder, and the side end face of the first feed pipe and the side end face of the first conveying pipe are flush with the side end face of the sealing gasket.

[0017] The working principle and beneficial effects of this invention are as follows:

[0018] (1) The present invention is equipped with an automatic maintenance component. By using the cooperation of the first oil pump and the second oil pump, the lubricating oil can be automatically and uniformly circulated in the outer shell of the housing through the oil inlet and the oil outlet. Combined with the oil filter, impurities, particles and contaminants in the oil can be filtered out. The clean lubricating oil helps to reduce wear and damage to mechanical parts. When the lubricating oil circulates in the third processing cylinder, it is driven by a small motor and the meshing of the circular gear and the internal gear can drive each rotating shaft to rotate automatically during the revolution. With the help of the first traction rod and the second traction rod, each sleeve can be driven. The stirring rod on the tube performs automatic and stable up-and-down reciprocating motion during its revolution and rotation, thus thoroughly and evenly stirring the lubricating oil in the circulation process. Combined with the cooling plate, it can also thoroughly and evenly cool the lubricating oil in the circulation process. The cooled lubricating oil more effectively performs its lubrication and cooling functions, preventing overheating and deterioration. In summary, the automatic maintenance component reduces friction, wear, and heat of the internal mechanical parts of the gearbox, ensuring stable gearbox operation, achieving automatic gearbox maintenance, and ultimately improving the gearbox's service life and operational safety.

[0019] (2) The present invention is equipped with a performance enhancement component. During the operation of the automatic maintenance component, the connecting plate can drive the guide frame, the fixed mesh plate and the reciprocating screw to rotate automatically. Then, through the threaded connection of the support plate, it can drive each guide block to perform automatic and stable up and down reciprocating motion in the corresponding guide frame. With the help of the feeding trough, the additives inside the first processing cylinder can be automatically and intermittently transported to the circulating lubricating oil and mixed evenly with it. This can effectively improve the performance of the oil and enhance its anti-wear, anti-oxidation and anti-corrosion properties, thereby improving the service life and performance of the lubricating oil and ensuring that the gearbox is maintained for a longer period of time. Maintaining good operating conditions helps extend the gearbox's lifespan, reduce malfunctions, and improve performance. Furthermore, by rotating the one-way threaded rods on the four guide blocks, operators can drive the adjusting plate up or down within the feeding trough via the transmission plate, thus easily adjusting the material storage space. This allows for convenient and accurate adjustment of the proportions of various additives according to actual needs, improving the performance of the lubricating oil and making it suitable for different types or operating conditions. This extends the lubricating oil's lifespan, avoids frequent oil changes that could affect gearbox efficiency, and effectively reduces resource consumption.

[0020] (3) The present invention is equipped with an oil changing tank. The hydraulic rod can drive the oil changing tank to move downward to the lowest end, aligning the first feed pipe with the second feed pipe. At this time, the lubricating oil can be automatically delivered to the oil changing tank through the first feed pipe for oil discharge. Then, the hydraulic rod can drive the oil changing tank to move upward to the top end, aligning the first feed pipe with the second feed pipe, and automatically completing the oil delivery work. Thus, the oil changing work inside the gearbox can be automatically and efficiently completed. Moreover, by using the oil changing tanks on both sides, the oil changing work inside the gearbox can be automatically completed twice without stopping the gearbox from working, which greatly reduces the frequency of oil changing for the staff. At the same time, it makes up for the defect of the existing gearbox that needs to stop working before the lubricating oil can be changed, avoiding the reduction of the working efficiency of the gearbox due to frequent oil changing. The structure is simple, the cost is low, the operation is easy, and it is easy to promote and use. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall main structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the side cross-section of the first processing cylinder of the present invention;

[0025] Figure 4 This is the present invention. Figure 3 Schematic diagram of the structure at point A in the middle;

[0026] Figure 5 This is the present invention. Figure 3 Schematic diagram of the structure at point B;

[0027] Figure 6 This is a schematic diagram of the main cross-sectional structure of the sleeve of the present invention;

[0028] Figure 7 This is a schematic diagram of the top section of the oil tank replacement structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the main cross-sectional structure of the guide block of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the guide block of the present invention;

[0031] Figure 10 This is a top view of the connecting plate structure of the present invention;

[0032] Figure 11 This is a top view schematic diagram of the internal gear structure of the present invention;

[0033] Figure 12 This is a top-section structural diagram of the guide block of the present invention;

[0034] Figure 13 This is a top view schematic diagram of the first partition plate structure of the present invention;

[0035] Figure 14 This is a schematic diagram of the main cross-section of the third processing cylinder of the present invention;

[0036] Figure 15 This is the present invention. Figure 14 Schematic diagram of the structure at point C;

[0037] Figure 16 This is a schematic diagram of the main cross-sectional structure of the oil tank of the present invention.

[0038] In the diagram: 1. Housing shell; 2. Gear shaft; 3. Suspension bracket; 4. Oil inlet; 5. Oil outlet; 6. Mounting base; 7. First fixing plate; 8. First processing cylinder; 9. Second fixing plate; 10. Support rod; 11. Second processing cylinder; 12. Third processing cylinder; 13. Automatic maintenance component; 1301. First oil pump; 1302. First oil pipe; 1303. Second oil pump; 1304. Second oil pipe; 1305. Cooling element; 1306. Small motor; 1307. Rotating plate; 1308. Connecting plate; 1309. Rotating shaft; 1310. Fixing block; 1311. First traction rod; 1312. Second traction rod; 1313. Sleeve; 1314. Stirring rod; 1315. Connecting spring; 1316. Connecting plate; 1317. Circular gear; 1318. 14. Internal gear; 14. Performance enhancement component; 1401. Guide frame; 1402. Fixed mesh plate; 1403. Reciprocating screw; 1404. Support plate; 1405. Guide block; 1406. Discharge chute; 1407. One-way threaded rod; 1408. Transmission plate; 1409. Adjusting plate; 1410. Guide frame; 1411. Sealing cylinder; 1412. Mixing rod; 15. First partition plate; 16. Return spring; 17. Locking rod; 18. Locking groove; 19. Sealing plate; 20. Hydraulic rod; 21. Oil tank; 22. Sealing gasket; 23. Second partition plate; 24. First feed pipe; 25. First conveying pipe; 26. Second conveying pipe; 27. First solenoid valve; 28. Second feed pipe; 29. ​​Third feed pipe; 30. Discharge pipe; 31. Second solenoid valve; 32. Oil filter. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] like Figures 1-16As shown, this embodiment proposes an automatic oil-changing gearbox for rail transit vehicles, including a housing 1. A gear shaft 2 and a suspension bracket 3 are mounted on the housing 1. The housing 1 has an oil inlet 4 and an oil outlet 5. A mounting base 6 is welded to the bottom of the housing 1. A first fixing plate 7 is welded to the housing 1. A first processing cylinder 8 is welded to the other end of the first fixing plate 7. A second fixing plate 9 is welded to the top side of the first processing cylinder 8. A support rod 10 is welded to the bottom surface of the second fixing plate 9. The bottom end of the support rod 10 is welded to the mounting base 6. A second processing cylinder 11 is fixedly connected to the bottom end of the first processing cylinder 8. A third processing cylinder 12 is fixedly connected to the bottom end of the second processing cylinder 11. The third processing cylinder 12 contains... An automatic maintenance component 13 is installed. A performance enhancement component 14 is installed inside the second processing cylinder 11. A first partition plate 15 is welded and fixed inside the first processing cylinder 8. A return spring 16 is welded and fixed to the top side of the first processing cylinder 8. A locking rod 17 is welded and fixed to the other end of the return spring 16. The locking rod 17 is slidably connected inside the first processing cylinder 8. A sealing plate 19 is slidably connected inside the first processing cylinder 8. A slot 18 is opened on the side end of the sealing plate 19. The end of the locking rod 17 is engaged and connected in the slot 18. Hydraulic rods 20 are installed on both the first fixing plate 7 and the second fixing plate 9. An oil changing tank 21 is fixedly connected to the bottom end of the hydraulic rod 20. A sealing gasket 22 is fixedly connected to the outer end face of the oil changing tank 21. A second partition plate 23 is welded and fixed inside the oil changing tank 21. The side end of the third processing cylinder 12 is connected to a first feed pipe 24 and a first conveying pipe 25. The bottom side end of the third processing cylinder 12 is connected to a second conveying pipe 26, on which a first solenoid valve 27 is installed. The top side end of the third processing cylinder 12 is connected to a second feed pipe 28. The top side end of the oil changing tank 21 is connected to a third feed pipe 29, and the bottom side end of the oil changing tank 21 is connected to a discharge pipe 30. Both the third feed pipe 29 and the discharge pipe 30 are equipped with second solenoid valves 31. The automatic maintenance component 13 can drive the lubricating oil to circulate, and at the same time, it can thoroughly and evenly stir and cool the lubricating oil during the circulation process. With the performance enhancement component 14, the ratio of various additives can be conveniently and accurately adjusted according to actual needs. Intermittent automatic addition of additives extends the service life of the lubricating oil, avoids frequent oil changes that could affect gearbox efficiency, and effectively reduces resource consumption. Hydraulic rod 20 moves the oil changing tank 21 downwards to its lowest point, aligning the first feed pipe 24 with the second delivery pipe 26. At this point, lubricating oil is automatically delivered to the oil changing tank 21 through the first feed pipe 24 for drainage. Subsequently, hydraulic rod 20 moves the oil changing tank 21 upwards to its highest point, aligning the first delivery pipe 25 with the second feed pipe 28, automatically completing the oil delivery process. This enables automatic and efficient replacement of the lubricating oil inside the gearbox. Furthermore, the use of oil changing tanks 21 on both sides allows for operation without stopping the gearbox.The system automatically completes two oil changes inside the gearbox, significantly reducing the frequency of oil changes for operators. It also overcomes the limitation of existing gearboxes requiring the gearbox to be stopped before oil changes, thus preventing frequent oil changes from reducing gearbox efficiency.

[0042] Example 2:

[0043] like Figures 1-16 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes an automatic oil-changing gearbox for rail transit vehicles.

[0044] In this embodiment, the diameters of the first processing cylinder 8, the second processing cylinder 11, and the third processing cylinder 12 are the same. The second processing cylinder 11 is made of transparent acrylic. The first partition plate 15 is in the shape of a cross. The side end face of the sealing plate 19 is in contact with the inner wall of the first processing cylinder 8, and the bottom end face of the sealing plate 19 is in contact with the top end face of the first partition plate 15. The slots 18 are symmetrically distributed on both sides of the sealing plate 19. The slots 18 correspond one-to-one with the locking rods 17. By pulling the locking rods 17 on the first processing cylinder 8 outward, they are disengaged from the slots 18 on the sealing plate 19. At this time, the sealing plate 19 can be disassembled from the first processing cylinder 8. Then, the operator can transport four different additives into the four storage spaces inside the first processing cylinder 8, such as anti-wear agent, antioxidant, anti-foaming agent, and corrosion inhibitor.

[0045] In this embodiment, the automatic maintenance component 13 includes a first oil pump 1301 and a second oil pump 1303. The first oil pump 1301 is installed on the top side of the third processing cylinder 12, and the second oil pump 1303 is installed on the bottom side of the third processing cylinder 12. A first oil pipe 1302 is connected to the flange of the first oil pump 1301, one end of which is connected to the top side of the third processing cylinder 12, and the other end of which is connected to the oil drain port 5. A second oil pipe 1304 is connected to the flange of the second oil pump 1303, one end of which is connected to the bottom side of the third processing cylinder 12. The other end of 1304 is connected to the oil inlet 4. A cooling plate 1305 is installed on the side of the third processing cylinder 12, and a small motor 1306 is installed at the bottom of the third processing cylinder 12. The cooling plates 1305 are symmetrically distributed on both sides of the third processing cylinder 12. An oil filter 32 is installed on the first oil pipe 1302. With the cooperation of the first oil pump 1301 and the second oil pump 1303, the lubricating oil can be automatically and uniformly circulated in the outer shell 1 of the housing through the oil inlet 4 and the oil outlet 5. Combined with the oil filter 32, impurities, particles and contaminants in the oil can be filtered out. Clean lubricating oil helps to reduce wear and damage to mechanical parts.

[0046] In this embodiment, the output shaft of the small motor 1306 is rotatably connected to the bottom of the third processing cylinder 12 via a sealed bearing. A rotating plate 1307 and a connecting plate 1308 are fixedly connected to the output shaft of the small motor 1306. A rotating shaft 1309 is rotatably connected to the connecting plate 1308. A fixing block 1310 is fixedly connected to the rotating shaft 1309. A first traction rod 1311 is hinged to the fixing block 1310. A second traction rod 1312 is rotatably connected to the other end of the first traction rod 1311. A sleeve 1313 is hinged to the other end of the second traction rod 1312. The sleeve 1313 is fitted onto the rotating shaft 1309. A stirring rod 1314 is fixedly connected to the sleeve 1313. A connecting spring 1315 is fixedly connected to the fixing block 1310. The other end of the spring 1315 is fixedly connected to the end of the sleeve 1313. The vertical center line of the output shaft of the small motor 1306, the vertical center line of the rotating plate 1307, the vertical center line of the connecting plate 1308, and the vertical center line of the third processing cylinder 12 are all located on the same vertical line. The connecting plate 1308 is in contact with the inner bottom surface of the third processing cylinder 12. The connecting plate 1308 is in the shape of a cross. Four rotating shafts 1309 are provided, and the four rotating shafts 1309 are distributed at equal angles on the connecting plate 1308. Two sets of first traction rods 1311 are provided, and each set of first traction rods 1311 has two rods. The two sets of first traction rods 1311 are symmetrically distributed on the upper and lower sides of the fixed block 1310. On the left and right sides of block 1310, the first traction rod 1311 and the second traction rod 1312 correspond one-to-one. The stirring rods 1314 are equidistantly distributed on both sides of the sleeve 1313. A connecting plate 1316 is rotatably connected to the rotating shaft 1309 via bearings. The connecting plate 1316 is rotatably connected to the top of the inner part of the third processing cylinder 12 via bearings. A circular gear 1317 is fixedly connected to the top of the rotating shaft 1309. An internal gear 1318 is meshed on the circular gear 1317. The internal gear 1318 is fixedly connected to the inner wall of the second processing cylinder 11. The top surface of the connecting plate 1316 is flush with the top surface of the third processing cylinder 12. When the lubricating oil circulates inside the third processing cylinder 12, it is driven by a small motor 1306 in conjunction with the circular gear 1317. The meshing with the internal gear 1318 enables each rotating shaft 1309 to automatically rotate during its revolution. Combined with the first traction rod 1311 and the second traction rod 1312, this drives the stirring rods 1314 on each sleeve 1313 to perform automatic and stable up-and-down reciprocating motion during revolution and rotation. This ensures comprehensive and uniform stirring of the circulating lubricating oil. Furthermore, the cooling plate 1305 provides comprehensive and uniform cooling of the circulating lubricating oil. The cooled lubricating oil more effectively performs its lubrication and cooling functions, preventing overheating and oil deterioration. In summary, the automatic maintenance component 13 reduces friction, wear, and heat in the internal mechanical parts of the gearbox, ensuring stable gearbox operation.To achieve automatic maintenance of the gearbox.

[0047] In this embodiment, the performance enhancement component 14 includes a flow guide frame 1401, which is rotatably connected to the inner wall of the second processing cylinder 11 via bearings. The bottom end of the flow guide frame 1401 is fixedly connected to the connecting plate 1316. A fixed mesh plate 1402 is fixedly connected to the inner bottom end of the flow guide frame 1401. A reciprocating screw 1403 is fixedly connected to the fixed mesh plate 1402. A support plate 1404 is threadedly connected to the reciprocating screw 1403. A guide block 1405 is fixedly connected to the support plate 1404. The bottom end faces of the flow guide frame 1401, the fixed mesh plate 1402, and the connecting plate 1316 are located on the same plane. The reciprocating screw 1403 is fixed to the center of the fixed mesh plate 1402 and connected to the center of the support plate 1404. The bottom of the support plate 1404 is shaped like a cross. Four guide blocks 1405 are provided, and the four guide blocks 1405 are distributed at equal angles on the support plate 1404. During the operation of the automatic maintenance component 13, the connecting plate 1316 can drive the guide frame 1401, the fixed mesh plate 1402 and the reciprocating screw 1403 to rotate automatically. Then, through the threaded support plate 1404, each guide block 1405 can be driven to perform automatic and stable up and down reciprocating motion in the corresponding guide frame 1410. With the help of the feeding trough 1406, the additives inside the first processing cylinder 8 can be automatically and intermittently transported to the circulating lubricating oil and mixed evenly with it. This can effectively improve the performance of the oil and enhance its anti-wear, anti-oxidation and anti-corrosion properties, thereby improving the service life and performance of the lubricating oil and ensuring that the gearbox maintains a good operating condition for a longer period of time.

[0048] In this embodiment, a feeding groove 1406 is provided on the side end of the guide block 1405. A one-way threaded rod 1407 is rotatably connected to the top of the guide block 1405. A transmission plate 1408 is threadedly connected to the one-way threaded rod 1407. An adjusting plate 1409 is fixedly connected to the bottom end of the transmission plate 1408. The adjusting plate 1409 is slidably connected inside the feeding groove 1406. A guide frame 1410 is fixedly connected to the bottom of the first processing cylinder 8. A sealing cylinder 1411 is fixedly connected to the inner wall of the guide frame 1410. The guide block 1405 is slidably connected inside the sealing cylinder 1411. A mixing rod 1412 is fixedly connected to the reciprocating screw 1403. The feeding grooves 1406 are symmetrically distributed on both sides of the guide block 1405. The bottom surface of the inner end of the feeding groove 1406 is inclined. The one-way threaded rod 1407 is connected to the middle part of the transmission plate 1408. The adjusting plate 1409 is symmetrically distributed on the transmission plate 1408. On both sides of the bottom, the adjusting plate 1409 is in contact with the inner wall of the feeding trough 1406. The cross-section of the adjusting plate 1409 is "L" shaped. The outer end face of the guide block 1405 is in contact with the inner wall of the sealing cylinder 1411. The mixing rods 1412 are evenly distributed at the bottom of the reciprocating screw 1403. By rotating the one-way threaded rods 1407 on the four guide blocks 1405 respectively, the operator can drive the adjusting plate 1409 to move up or down in the feeding trough 1406 through the transmission plate 1408. This allows for convenient adjustment of the material storage space in the feeding trough 1406. This enables convenient and accurate adjustment of the proportion of various additives according to actual needs, improving the performance of the lubricating oil so that it can be used for different types or different working conditions. This extends the service life of the lubricating oil, avoids frequent lubricating oil changes that affect the working efficiency of the gearbox, and effectively reduces resource consumption.

[0049] In this embodiment, the bottom end of the hydraulic rod 20 is fixed to the top middle part of the oil changing tank 21. The oil changing tank 21 has a fan-shaped cross-section and is symmetrically distributed on both sides of the third processing cylinder 12. The outer wall of the third processing cylinder 12 is in contact with the sealing gasket 22. The oil changing tank 21 corresponds one-to-one with the hydraulic rod 20. The length of the oil changing tank 21 is greater than the length of the third processing cylinder 12. The side end faces of the second conveying pipe 26 and the second feed pipe 28 are flush with the side end faces of the third processing cylinder 12. The side end faces of the first feed pipe 24 and the first conveying pipe 25 are flush with the side end faces of the sealing gasket 22. The hydraulic rod 20 can drive the oil changing tank 21 to move downward to the lowest end, thus moving the first... The feed pipe 24 is aligned with the second feed pipe 26. At this time, the lubricating oil can be automatically delivered to the oil changing tank 21 through the first feed pipe 24 for oil discharge. Then, the hydraulic rod 20 can drive the oil changing tank 21 to move upward to the top. At this time, the first feed pipe 25 is aligned with the second feed pipe 28, which can automatically complete the oil delivery work. Thus, the lubricating oil inside the gearbox can be replaced automatically and efficiently. Moreover, by using the oil changing tanks 21 on both sides, the lubricating oil inside the gearbox can be replaced twice automatically without stopping the gearbox. This greatly reduces the frequency of oil changes for the staff and makes up for the shortcomings of the existing gearbox that requires the gearbox to be stopped before the lubricating oil can be replaced.

[0050] It should be noted that the working method of the automatic oil changing gearbox of the rail transit vehicle of the present invention is as follows:

[0051] First, the first processing cylinder 8 is divided into four equal storage spaces by the internal first partition plate 15. The operator can pull the lever 17 on the first processing cylinder 8 outwards to disengage it from the slot 18 on the sealing plate 19. At this point, the sealing plate 19 can be detached from the first processing cylinder 8. Then, the operator can deliver four different additives, such as anti-wear agent, antioxidant, anti-foaming agent, and corrosion inhibitor, into the four storage spaces inside the first processing cylinder 8. The operator can then pull the lever 17 outwards again and place the sealing plate 19 inside the first processing cylinder 8. Afterwards, the operator can release the lever 17. At this point, under the elastic action of the return spring 16, the lever 17 can automatically engage with the slot 18 on the sealing plate 19. The sealing plate 19 can then be easily and stably engaged and fixed, sealing the first processing cylinder 8. When the gearbox starts working, the gear on the gear shaft 2 can be inside the outer shell 1 of the gearbox. The gearbox rotates stably, allowing the lubricating oil at the bottom of the housing 1 to directly contact the gears. As the gears rotate, the lubricating oil is moved throughout the gearbox. During gearbox operation, driven by the first oil pump 1301, the lubricating oil in the housing 1 is stably transported to the first oil pipe 1302 through the oil drain port 5 via the first oil pipe 1302. During this transport, impurities, particles, and contaminants in the lubricating oil are filtered out by the oil filter 32. Clean lubricating oil helps reduce wear and damage to mechanical parts. The lubricating oil is then transported to the third processing cylinder 12. Driven by the second oil pump 1303, the lubricating oil in the third processing cylinder 12 is transported back to the housing 1 through the oil inlet 4 via the second oil pipe 1304, completing the circulation of the lubricating oil and preventing sedimentation during long-term storage, which would affect the lubrication performance of the gearbox.

[0052] Furthermore, during the circulation of lubricating oil, driven by the small motor 1306, the output shaft drives the rotating plate 1307 and the connecting plate 1308 to rotate simultaneously. The rotation of the connecting plate 1308 then drives each rotating shaft 1309 to rotate in a circular motion, i.e., to revolve. The rotation of each rotating shaft 1309 then drives the top circular gear 1317 to rotate within the internal gear 1318. The meshing of the circular gear 1317 and the internal gear 1318 drives the rotating shaft 1309 to rotate in a circular motion. 309 rotates automatically. Simultaneously, the fixed block 1310 on the rotating shaft 1309 drives the upper and lower sleeves 1313 to rotate automatically during the revolution via the first traction rod 1311 and the second traction rod 1312. This, combined with the stirring rods 1314, ensures thorough and uniform stirring of the circulating lubricating oil. Simultaneously, during the rotation of the rotating shaft 1309, the first traction rod 1311 and the second traction rod 1312 intermittently contact the rotating plate 1307. Under the action of the arc-shaped convex end of the rotating plate 1307, the rotating... During the movement, the first traction rod 1311 and the second traction rod 1312 are squeezed and pushed. Therefore, during the rotation of the first traction rod 1311 and the second traction rod 1312, when they contact the end of the rotating plate 1307, the rotating plate 1307 can push the upper first traction rod 1311 to rotate upward, while the lower first traction rod 1311 rotates downward. In conjunction with the corresponding second traction rod 1312, this pushes the upper sleeve 1313 to move upward, while the lower sleeve 1313 moves downward. When the first traction rod 1311 rotates and disengages from the rotating plate 1307... The upper and lower sleeves 1313 can automatically move back to the center using the connecting springs 1315 on the fixing block 1310. This process is repeated. During the rotation and revolution, the sleeves 1313 can also perform automatic and stable up and down reciprocating motion, which can further and evenly stir the lubricating oil in the circulation process. At this time, the cooling plates 1305 on both sides can make full and even contact with the circulating lubricating oil and perform full and even cooling treatment on the lubricating oil. The cooled lubricating oil can more effectively perform its lubrication and cooling functions, avoiding overheating of the lubricating oil and causing oil deterioration.

[0053] Furthermore, during the revolution and rotation of each rotating shaft 1309, the connecting plate 1316 can be driven to rotate stably, which in turn drives the guide frame 1401 on the connecting plate 1316 to rotate. At this time, under the rotation of the guide frame 1401, the reciprocating screw 1403 can be driven to rotate stably through the fixed mesh plate 1402. Under the rotation of the reciprocating screw 1403, the support plate 1404 connected by threads can drive each guide block 1405 to perform automatic and stable up and down reciprocating motion within the corresponding guide frame 1410. When the support plate 1404 drives the guide block 1405 to move to the top, the guide block 1405 can drive the lower... The feed trough 1406 moves into the first processing cylinder 8. At this time, the additives inside the first processing cylinder 8 can automatically flow into the feed troughs 1406 on both sides of the guide block 1405. Then, the guide block 1405 moves downward, and the feed troughs 1406 can drive the additives through the guide frame 1410 and the sealing cylinder 1411 to be conveyed downward into the guide frame 1401. Under the guidance of the guide frame 1401, the additives can be automatically and stably conveyed into the third processing cylinder 12 through the fixed mesh plate 1402 at the bottom. During the guiding and conveying process, the additives can be guided and conveyed by the continuous rotation of the reciprocating screw 1403 and the various mixing rods 1412. Various additives are premixed, and through the reciprocating motion of each guide block 1405, the additives are automatically and intermittently delivered to the circulating lubricating oil. Driven by the automatic maintenance component 13, the additives and lubricating oil are efficiently and evenly mixed, effectively improving the oil's performance and enhancing its anti-wear, anti-oxidation, and anti-corrosion properties. Furthermore, the operator can pull the lever 17 on the first processing cylinder 8 outwards to disengage it from the slot 18 on the sealing plate 19. At this point, the sealing plate 19 can be detached from the first processing cylinder 8. The operator can then individually rotate the one-way threaded rod 14 on each guide block 1405. 07 Under the rotation of the one-way threaded rod 1407, the top adjusting plate 1409 of the transmission plate 1408 connected by the thread can move up or down in the feeding groove 1406. By adjusting the movement of the adjusting plate 1409, combined with the scale inside the feeding groove 1406, the storage space of the feeding groove 1406 can be conveniently adjusted. In addition, the ratio of various additives can be conveniently and accurately adjusted according to actual needs, so that the performance of the lubricating oil can be improved to be suitable for different types or different working conditions, thus extending the service life of the lubricating oil, avoiding frequent changes of lubricating oil that affect the working efficiency of the gearbox, and effectively reducing resource consumption.

[0054] During gearbox operation, the first feed pipe 24 and the second feed pipe 26 are aligned. When lubricating oil needs to be replaced, the operator only needs to open the first solenoid valve 27 on the second feed pipe 26. At this time, the second oil pump 1303 is closed. Therefore, when the lubricating oil passes through the third processing cylinder 12, it can be automatically delivered to the bottom of the oil changing tank 21 through the first feed pipe 24 and the second feed pipe 26 to complete the oil draining work. After the oil draining work is completed, the operator only needs to drive the hydraulic rod 20 on the first fixed plate 7 or the second fixed plate 9. Only one side of the hydraulic rod 20 needs to be driven. The hydraulic rod 20 drives the oil changing tank 21 on one side to move upward to the top. After the oil changing tank 21 moves upward to the top, the first feed pipe 25 on the oil changing tank 21 is aligned with the second feed pipe 28 on the third processing cylinder 12. At this time, the new lubricating oil stored above the second partition plate 23 inside the oil changing tank 21 is ready for use. The oil can be automatically transported to the third processing cylinder 12 through the first conveying pipe 25 and the second feed pipe 28 to complete the automatic replacement of the lubricating oil. Similarly, when the next lubricating oil replacement is required, simply drive the hydraulic rod 20 on the other side to automatically and efficiently complete the replacement of the lubricating oil inside the gearbox. Moreover, using the oil changing tanks 21 on both sides, the lubricating oil inside the gearbox can be automatically replaced twice without stopping the gearbox. During downtime, the operator only needs to open the second solenoid valve 31 on the third feed pipe 29 and the discharge pipe 30. At this time, the waste lubricating oil stored at the bottom of the oil changing tank 21 can be discharged. The operator can collect it using a collection bucket for convenient subsequent transportation and processing. Then, the operator can use the third feed pipe 29 to transport the new lubricating oil to the top of the oil changing tank 21 for storage, waiting for the oil replacement.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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. An automatic oil-changing gearbox for rail transit vehicles, characterized in that, The device includes a housing (1), on which a gear shaft (2) and a suspension bracket (3) are mounted. The housing (1) is provided with an oil inlet (4) and an oil outlet (5). A mounting base (6) is welded and fixed to the bottom of the housing (1). A first fixing plate (7) is welded and fixed to the housing (1). A first processing cylinder (8) is welded and fixed to the other end of the first fixing plate (7). A second fixing plate (9) is welded and fixed to the top side of the first processing cylinder (8). A support rod (10) is welded and fixed to the bottom surface of the second fixing plate (9). The bottom end of the support rod (10) is welded and fixed to the mounting base (6). The bottom end of the first processing cylinder (8) is fixedly connected to the second processing cylinder (11). The bottom end of the second processing cylinder (11) is fixedly connected to the third processing cylinder (12). An automatic maintenance component (13) is installed inside the third processing cylinder (12). A performance enhancement component (14) is installed inside the second processing cylinder (11). The automatic maintenance component (13) includes a first oil pump (1301) and a second oil pump (1303). A small motor (1306) is installed at the bottom end of the third processing cylinder (12). The output shaft of the small motor (1306) is rotatably connected to the bottom of the third processing cylinder (12) via a sealed bearing. A rotating plate (1307) and a connecting plate (1308) are fixedly connected to the output shaft of the small motor (1306). A rotating shaft (1309) is rotatably connected to the connecting plate (1308). A fixing block (1310) is fixedly connected to the rotating shaft (1309). A first traction rod (1311) is hinged to the fixing block (1310). (1311) has a second traction rod (1312) rotatably connected to its other end. The other end of the second traction rod (1312) is hinged to a sleeve (1313). The sleeve (1313) is fitted onto the rotating shaft (1309). A stirring rod (1314) is fixedly connected to the sleeve (1313). A connecting spring (1315) is fixedly connected to the fixing block (1310). The other end of the connecting spring (1315) is fixedly connected to the end of the sleeve (1313). The vertical center line of the output shaft of the small motor (1306), the vertical center line of the rotating plate (1307), the vertical center line of the connecting plate (1308), and the vertical center line of the third processing cylinder (12) are all located on the same vertical line. The connecting plate (1308) is in contact with the inner bottom surface of the third processing cylinder (12). The connecting plate (1308) is in the shape of a cross. There are four rotating shafts (1309), which are distributed at equal angles on the connecting plate (1308). On the first traction rod (1311), there are two sets of the first traction rod (1311), and each set of the first traction rod (1311) has two rods. The two sets of the first traction rod (1311) are symmetrically distributed on the upper and lower sides of the fixed block (1310), and each set of the first traction rod (1311) is symmetrically distributed on the left and right sides of the fixed block (1310). The first traction rod (1311) and the second traction rod (1312) correspond one-to-one. The stirring rod (1314) is equidistantly distributed on both sides of the sleeve (1313).

2. The automatic oil-changing gearbox for rail transit vehicles according to claim 1, characterized in that: A first partition plate (15) is welded and fixed inside the first processing cylinder (8). A return spring (16) is welded and fixed to the top side of the first processing cylinder (8). A locking rod (17) is welded and fixed to the other end of the return spring (16). The locking rod (17) is slidably connected inside the first processing cylinder (8). A sealing plate (19) is slidably connected inside the first processing cylinder (8). A slot (18) is opened on the side end of the sealing plate (19). The end of the locking rod (17) is engaged and connected in the slot (18). A hydraulic rod (20) is installed on both the first fixing plate (7) and the second fixing plate (9). An oil change tank (21) is fixedly connected to the bottom end of the hydraulic rod (20). The outside of the oil change tank (21) A sealing gasket (22) is fixedly connected to the end face. A second partition plate (23) is welded and fixed inside the oil change tank (21). A first feed pipe (24) and a first conveying pipe (25) are connected to the side end of the oil change tank (21). A second conveying pipe (26) is connected to the bottom side end of the third processing cylinder (12). A first solenoid valve (27) is installed on the second conveying pipe (26). A second feed pipe (28) is connected to the top side end of the third processing cylinder (12). A third feed pipe (29) is connected to the top side end of the oil change tank (21). A discharge pipe (30) is connected to the bottom side end of the oil change tank (21). A second solenoid valve (31) is installed on both the third feed pipe (29) and the discharge pipe (30). The diameters of the first processing cylinder (8), the second processing cylinder (11), and the third processing cylinder (12) are the same. The second processing cylinder (11) is made of transparent acrylic material. The first partition plate (15) is in the shape of a cross. The side end face of the sealing plate (19) is in contact with the inner wall of the first processing cylinder (8). The bottom end face of the sealing plate (19) is in contact with the top end face of the first partition plate (15). The slots (18) are symmetrically distributed on both sides of the sealing plate (19). The slots (18) correspond one-to-one with the locking rods (17).

3. The automatic oil-changing gearbox for rail transit vehicles according to claim 2, characterized in that: The first oil pump (1301) is installed on the top side of the third processing cylinder (12), and the second oil pump (1303) is installed on the bottom side of the third processing cylinder (12). The first oil pump (1301) is connected to a first oil pipe (1302) by a flange. One end of the first oil pipe (1302) is connected to the top side of the third processing cylinder (12), and the other end of the first oil pipe (1302) is connected to the oil outlet (5). The second oil pump (1303) is connected to a second oil pipe (1304) by a flange. One end of the second oil pipe (1304) is connected to the bottom side of the third processing cylinder (12), and the other end of the second oil pipe (1304) is connected to the oil inlet (4). Cooling chips (1305) are installed on the side of the third processing cylinder (12). The cooling chips (1305) are symmetrically distributed on both sides of the third processing cylinder (12). An oil filter (32) is installed on the first oil pipe (1302).

4. The automatic oil-changing gearbox for rail transit vehicles according to claim 3, characterized in that: A connecting plate (1316) is rotatably connected to the rotating shaft (1309) via a bearing. The connecting plate (1316) is rotatably connected to the top of the third processing cylinder (12) via a bearing. A circular gear (1317) is fixedly connected to the top of the rotating shaft (1309). An internal gear (1318) is meshed with the circular gear (1317). The internal gear (1318) is fixedly connected to the inner wall of the second processing cylinder (11). The top surface of the connecting plate (1316) is flush with the top surface of the third processing cylinder (12).

5. The automatic oil-changing gearbox for rail transit vehicles according to claim 4, characterized in that: The performance enhancement component (14) includes a flow guide frame (1401), which is rotatably connected to the inner wall of the second processing cylinder (11) via a bearing. The bottom end of the flow guide frame (1401) is fixedly connected to the connecting plate (1316). A fixed mesh plate (1402) is fixedly connected to the bottom inner end of the flow guide frame (1401). A reciprocating screw (1403) is fixedly connected to the fixed mesh plate (1402). A support plate (1404) is threaded onto the reciprocating screw (1403). A fixed connection is made to the support plate (1404). The guide block (1405) is connected to the bottom end face of the guide frame (1401), the bottom end face of the fixed mesh plate (1402) and the bottom end face of the connecting plate (1316) are located on the same plane. The reciprocating screw (1403) is fixed at the center of the fixed mesh plate (1402). The reciprocating screw (1403) is connected to the center of the support plate (1404). The bottom of the support plate (1404) is in the shape of a cross. Four guide blocks (1405) are provided. The four guide blocks (1405) are distributed at equal angles on the support plate (1404).

6. The automatic oil-changing gearbox for rail transit vehicles according to claim 5, characterized in that: The guide block (1405) has a feeding groove (1406) on its side end. The top of the guide block (1405) is rotatably connected to a one-way threaded rod (1407). A transmission plate (1408) is threaded onto the one-way threaded rod (1407). An adjusting plate (1409) is fixedly connected to the bottom of the transmission plate (1408). The adjusting plate (1409) is slidably connected inside the feeding groove (1406). A guide frame (1410) is fixedly connected to the bottom of the first processing cylinder (8). A sealing cylinder (1411) is fixedly connected to the inner wall of the guide frame (1410). The guide block (1405) is slidably connected inside the sealing cylinder (1411). A mixing rod (1412) is fixedly connected to the reciprocating screw (1403).

7. The automatic oil-changing gearbox for rail transit vehicles according to claim 6, characterized in that: The feeding groove (1406) is symmetrically distributed on both sides of the guide block (1405). The bottom surface of the feeding groove (1406) is inclined. The one-way threaded rod (1407) is connected to the middle part of the transmission plate (1408). The adjusting plate (1409) is symmetrically distributed on both sides of the bottom of the transmission plate (1408). The adjusting plate (1409) is in contact with the inner wall of the feeding groove (1406). The cross-section of the adjusting plate (1409) is "L". The outer end face of the guide block (1405) is in contact with the inner wall of the sealing cylinder (1411). The mixing rod (1412) is equidistantly distributed at the bottom of the reciprocating screw (1403).

8. The automatic oil-changing gearbox for rail transit vehicles according to claim 7, characterized in that: The bottom end of the hydraulic rod (20) is fixed to the top middle part of the oil change tank (21). The cross-section of the oil change tank (21) is fan-shaped. The oil change tanks (21) are symmetrically distributed on both sides of the third processing cylinder (12). The outer wall of the third processing cylinder (12) is in contact with the sealing gasket (22). The oil change tank (21) corresponds one-to-one with the hydraulic rod (20).

9. The automatic oil-changing gearbox for rail transit vehicles according to claim 8, characterized in that: The length of the oil change tank (21) is greater than the length of the third processing cylinder (12). The side end face of the second conveying pipe (26) and the side end face of the second feed pipe (28) are flush with the side end face of the third processing cylinder (12). The side end face of the first feed pipe (24) and the side end face of the first conveying pipe (25) are flush with the side end face of the sealing gasket (22).

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