Aluminum alloy gearbox structure for high-speed rail

Abstract

The invention belongs to the technical field of transmission devices, and particularly relates to an aluminum alloy gearbox structure for high-speed rails.The aluminum alloy gearbox structure comprises a gearbox, hydraulic devices are fixedly connected to the front side and the rear side of the outer surface of the gearbox, the gearbox comprises a heat dissipation box shell, and a brake device is arranged on the left side of the inner wall of the heat dissipation box shell; a sealing cover is fixedly connected to the top of the inner wall of the heat dissipation box shell, a main rotating gear is arranged on the left side of the inner wall of the heat dissipation box shell, and a first driven gear is arranged on the upper portion of the inner wall of the heat dissipation box shell. When the device is used, if internal gears need to be lubricated, only the hollow threaded sleeve needs to be controlled to rotate clockwise, then the oil conveying pipe in the heat dissipation box shell can automatically oil and lubricate the three internal gears, and the operation can also be carried out in the working process of the gearbox; and the gear can be lubricated without opening the gear box, so that the operation is simple and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission devices, and in particular to an aluminum alloy gear box structure for high-speed railways. Background Art

[0002] With the continuous development of science and technology, my country's transportation industry has been rapidly improved. From steam locomotives to ordinary trains to the current high-speed rail, it marks the continuous progress of my country's railway technology. There are various parts on the high-speed rail. In order to reduce the weight of the body itself and improve the performance of use, aluminum alloy gearbox structures are often used on high-speed rail.

[0003] Since high-speed trains run at high speeds, the temperature inside the gearbox is usually kept at a high level, which makes the gears easy to deform. In addition, the gears rotate at a high speed and have a heavy workload during transmission, so it is necessary to apply lubricating oil to the outer surface of the gears from time to time to reduce wear between the gears. Generally, relatively sealed gearboxes are difficult to open, and it is also difficult to lubricate the internal gears during operation, which reduces the service life of general gearboxes. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aluminum alloy gearbox structure for high-speed rail, which solves the problem that the gears rotate at a high speed and have a large workload during transmission, and it is cumbersome to apply lubricating oil to the outer surface of the gears.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an aluminum alloy gearbox structure for high-speed rail described in the present invention comprises a gearbox, and hydraulic devices are fixedly connected to the front and rear sides of the outer surface of the gearbox.

[0006] Preferably, the gear box includes a heat dissipation case shell, a braking device is provided on the left side of the inner wall of the heat dissipation case shell, a sealing cover is fixedly connected to the top of the inner wall of the heat dissipation case shell, a main rotating gear is provided on the left side of the inner wall of the heat dissipation case shell, a first passive gear is provided on the upper part of the inner wall of the heat dissipation case shell, and a second passive gear is provided on the lower part of the inner wall of the heat dissipation case shell, a long shaft rod is fixedly connected to the axis center of the inner wall of the main rotating gear, and movable brushes are evenly arranged on the upper and rear sides of the outer surface of the long shaft rod, and heat dissipation filter holes are symmetrically opened on the front and rear sides of the inner wall of the heat dissipation case shell, and one side of the outer surface of the movable brush is movably connected to the outer surface of the heat dissipation case shell through the heat dissipation filter holes, a connecting shaft rod is fixedly connected to the axis center of the inner wall of the first passive gear, and a connecting shaft rod is fixedly connected to the axis center of the inner wall of the second passive gear. Before using the device, the two ends of the long shaft rod are connected to the rotating machine, and then the rotating machine controls the main rotating gear inside the gear box to rotate through the long shaft rod. During the rotation of the main rotating gear, the first passive gear and the second passive gear meshing with the outer surface of the main rotating gear rotate accordingly. Then, the other train components are controlled for transmission through the connecting shaft. Since the two first passive gears and the second passive gear are of different sizes, the rotation speeds of the two connecting shafts are also different, so the gearbox can play a certain speed change transmission function. In order to ensure the heat dissipation effect of the internal gears, heat dissipation filter holes are evenly opened on the inner wall of the heat dissipation box shell close to the main rotating gear with the largest load to ensure the heat dissipation effect of the gears and prevent the internal gears from melting and deforming due to insufficient heat dissipation when the gearbox is working under high load.

[0007] Preferably, the hydraulic device includes an oil storage tank, the upper part of the inner wall of the oil storage tank is slidably connected with a center hole pressure plate, the middle part of the upper surface of the center hole pressure plate is rotatably connected with a hollow threaded sleeve, the upper part of the inner wall of the hollow threaded sleeve is slidably connected with a sealing plug, a connecting socket is provided on the left side of the lower part of the inner wall of the oil storage tank, a side branch through pipe is fixedly connected to the left side of the lower part of the inner wall of the oil storage tank through the connecting socket, and an oil pipeline is fixedly connected to the left end of the side branch through pipe. Since the device is applied to the transmission of high-speed trains and the speed of high-speed trains is relatively fast, the main rotating gear and the gear of the device are connected when the device is working. Is the working intensity between the first passive gear and the second passive gear too great? It is necessary to continuously use lubricating oil for lubrication to relieve the friction between the gears. Before lubrication, open the sealing plug of the side hydraulic device, and pour lubricating oil into the interior of the oil storage tank through the hollow threaded sleeve. After filling, insert the sealing plug into the top of the hollow threaded sleeve. After the oil storage tank is completely blocked, turn the hollow threaded sleeve clockwise, and the hollow threaded sleeve slowly descends along the threaded groove on the top of the inner wall of the oil storage tank, pressing the middle hole pressure plate downward, and the lubricating oil below enters the oil pipeline through the side branch pipes on both sides after being squeezed.

[0008] Preferably, the oil delivery pipe includes a central tube, the middle part of the inner wall of the central tube is evenly provided with oil through holes, the front and rear sides of the inner wall of the central tube are symmetrically provided with closed sliding plugs, the outer surface of the closed sliding plug is fixedly connected with a suspension spring on one side close to the middle part of the central tube, after the lubricating oil enters the two ends of the oil delivery pipe, under the action of pressure, the closed sliding plugs on both sides are squeezed toward the middle part of the central tube, the suspension spring is compressed, and then the oil through holes are opened one after another, and the lubricating oil is sprayed to the outside through the oil through holes, and the oil delivery pipe is located between the main rotating gear, the first passive gear and the second passive gear, so the sprayed lubricating oil can lubricate the three gears at the same time. When the device is in use, if it is necessary to lubricate the internal gears, it is only necessary to control the hollow threaded sleeve to rotate clockwise, and then the oil delivery pipe inside the heat sink shell can automatically lubricate the three internal gears, and this operation can also be carried out during the operation of the gear box, and the gear lubrication work can be carried out without opening the gear box, and the operation is simple and convenient.

[0009] Preferably, both sides of the outer surface of the central tube are rotationally connected to the middle of the inner wall of the heat dissipation box shell through the central hole, and the front and rear ends of the central tube are rotationally connected to the bottom end of the side branch through tube. There are two closed sliding plugs, and the outer surface of the closed sliding plug is slidingly connected to the inner wall of the central tube. After the injection of the lubricating oil is completed, the rotation of the hollow threaded sleeve is stopped, and the pressure inside the hydraulic device gradually decreases. Therefore, the suspension spring slowly pushes the closed sliding plugs on both sides to the two ends of the central tube during the recovery process, discharges the residual lubricating oil inside the central tube, and isolates the lubricating oil inside the oil storage tank from the central tube to prevent the lubricating oil inside the oil storage tank from being contaminated and deteriorated.

[0010] Preferably, the outer surface of the hollow threaded sleeve is threadedly connected to the axis center of the upper part of the inner wall of the oil storage tank, the lower part of the inner wall of the oil storage tank is filled with lubricating oil, and the left side of the outer surface of the oil storage tank is movably connected to the right side of the outer surface of the heat dissipation box shell. Since this operation can also be carried out during the operation of the gear box, the degree of gear wear inside the gear box is effectively reduced, the service life of the gears is extended, and there is no noise problem due to insufficient lubrication during operation, which makes the operation of high-speed trains quieter and the stability is significantly improved.

[0011] Preferably, both ends of the long shaft rod extend to the outside of the heat sink shell, both sides of the outer surface of the long shaft rod are rotatably connected to the inner wall of the heat sink shell, the number of the connecting shaft rods is two, both ends of the connecting shaft rod extend to the outside of the heat sink shell, both sides of the outer surface of the connecting shaft rod are rotatably connected to the inner wall of the heat sink shell, the outer surface of the main rotating gear is meshed with the outer surface of the first passive gear, and the outer surface of the main rotating gear is meshed with the outer surface of the second passive gear.

[0012] Preferably, the movable plate brush includes a fixed outer shell, the inner wall of the fixed outer shell is slidably connected with an adapter plate, and the bottom end of the adapter plate is evenly provided with fine brush heads. During the rotation of the fixed outer shell, the outer surface of the fixed outer shell will rub against the two ends of the outer surface of the central tube, and then the central tube is driven to rotate by the friction force. Therefore, the central tube will continue to rotate during the oil spray lubrication process, and the lubricating oil inside the central tube will be thrown out from the inside of the central tube under the action of centrifugal force, thereby reducing the residual lubricating oil inside the central tube and making the sprayed lubricating oil more uniform.

[0013] Preferably, the number of the fixed shells is twelve, the left side of the outer surface of the fixed shell is fixedly connected to the outer surface of the long shaft rod, the bottom end of the fine brush head is movably connected to the outer surface of the heat dissipation box shell through the heat dissipation filter hole, and the right side of the outer surface of the fixed shell is movably connected to one side of the outer surface of the central tube. In order to ensure the heat dissipation effect of the internal gears, heat dissipation filter holes are evenly opened on the inner wall of the heat dissipation box shell close to the side of the main rotating gear with the largest load to ensure the heat dissipation effect of the gears. When the gear box is working, a large pressure will be generated inside due to the high temperature, so gas passes through the heat dissipation filter holes, and the heat dissipation filter holes are easily blocked by dust and impurities, so a movable plate brush is provided. When the long shaft rod rotates, the fine brush head continuously sweeps the outer surface of the heat dissipation box shell under the rotation of the long shaft rod, thereby removing impurities on the outer surface of the heat dissipation filter hole, and the adapter plate can be taken out from the inside of the fixed shell for easy replacement, which is beneficial to subsequent maintenance work.

[0014] Preferably, the braking device includes a large-toothed semicircular sleeve, a thrust plate is fixedly connected to the middle of the left side of the outer surface of the large-toothed semicircular sleeve, an oblique slide plate is symmetrically arranged on the left side of the outer surface of the large-toothed semicircular sleeve, and a tension spring belt is fixedly connected to the middle of the outer surface of the oblique slide plate away from the thrust plate.

[0015] Preferably, the right side of the outer surface of the large toothed semicircular sleeve is clamped with the left side of the outer surface of the main rotating gear, the number of the oblique slide plates is two, the top end of the oblique slide plate is slidably connected to the left side of the inner wall of the heat dissipation box shell, the bottom end of the oblique slide plate is rotationally connected to the left side of the outer surface of the large toothed semicircular sleeve through a rotating joint, the number of the tension spring belts is two, one end of the tension spring belt is fixedly connected to the middle part of the outer surface of the oblique slide plate away from the thrust plate, and the other end of the tension spring belt is fixedly connected to the inner wall of the heat dissipation box shell, The middle part of the outer surface of the thrust plate is slidably connected to the left side of the inner wall of the heat sink shell. In the non-working state, the thrust plate is pushed to the right, and the large-toothed semicircular sleeve engages with the outer surface of the main rotating gear through its own large locking teeth, thereby locking the main rotating gear and preventing the main rotating gear from rotating, thereby playing a safety role. After the thrust plate is unloaded, the tension spring belts on both sides will pull the oblique slide plate to both sides, and the large-toothed semicircular sleeve and the thrust plate both move to the left. At this time, the large-toothed semicircular sleeve is separated from the main rotating gear, losing the locking effect, and the gear box can be used normally.

[0016] Preferably, the diameter of the first passive gear is larger than that of the second passive gear, and the length of the long shaft is longer than that of the connecting shaft. The device has a braking function. When it is not working, the large-tooth semicircular sleeve can lock the main rotating gear. On the one hand, it can prevent the main rotating gear from deflecting under the influence of external factors. On the other hand, it can play a safety role, reminding the operator to release the self-locking function only after preparation is completed before the train starts. This avoids the problem of the operator starting the train without sufficient preparation to a certain extent, making the operation more standardized and reasonable.

[0017] The beneficial effects of the present invention are as follows: 1. When the device is in use, if it is necessary to lubricate the internal gears, it is only necessary to control the hollow threaded sleeve to rotate clockwise, and then the oil pipe inside the heat sink shell can automatically lubricate the three internal gears. Moreover, this operation can also be carried out during the operation of the gear box. The gears can be lubricated without opening the gear box. The operation is simple and convenient.

[0018] Since this operation can also be carried out during the operation of the gearbox, the degree of gear wear inside the gearbox is effectively reduced, the service life of the gears is extended, and there will be no noise problem due to insufficient lubrication during operation, making the operation of high-speed trains quieter and the stability is significantly improved.

[0019] In order to ensure the heat dissipation effect of the internal gears, heat dissipation filter holes are evenly opened on the inner wall of the heat dissipation box shell close to the main rotating gear with the heaviest load, so as to ensure the heat dissipation effect of the gears and prevent the internal gears from melting and deforming due to insufficient heat dissipation when the gear box is working under high load.

[0020] When the long shaft rotates, the fine brush head continuously sweeps across the outer surface of the heat sink shell under the rotation of the long shaft, thereby removing impurities on the outer surface of the heat sink filter hole, and the adapter plate can be taken out from the inside of the fixed shell for easy replacement, which is beneficial to subsequent maintenance work.

[0021] After the lubricating oil is injected, the rotation of the hollow threaded sleeve is stopped and the pressure inside the hydraulic device gradually decreases. Therefore, the suspension spring slowly pushes the closed sliding plugs on both sides to the two ends of the center tube during the recovery process, discharges the residual lubricating oil inside the center tube, and isolates the lubricating oil inside the oil storage tank from the center tube to prevent the lubricating oil inside the oil storage tank from being contaminated and deteriorated.

[0022] The device has a braking function. When it is not working, the large-tooth semicircular sleeve can lock the main rotating gear. On the one hand, it can prevent the main rotating gear from deflecting under the influence of external factors. On the other hand, it can play a safety role, reminding the operator to be ready before the train starts before releasing the self-locking function. To a certain extent, it avoids the problem of the operator starting the train without sufficient preparation, making the operation more standardized and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the present invention; Figure 2 is a cross-sectional view of the gearbox of the present invention; Figure 3 is a partial cross-sectional view of the hydraulic device of the present invention; Figure 4 It is a structural schematic diagram of the oil pipeline of the present invention; Figure 5 It is a structural schematic diagram of the movable brush of the present invention; Figure 6 It is a structural schematic diagram of the braking device of the present invention.

[0024] In the figure: 1. gear box; 2. movable plate brush; 3. hydraulic device; 11. heat dissipation box shell; 12. cover; 13. main rotating gear; 14. first passive gear; 15. second passive gear; 16. long shaft rod; 17. connecting shaft rod; 18. heat dissipation filter hole; 21. fixed shell; 22. adapter plug; 23. fine brush head; 31. oil storage tank; 32. center hole pressure plate; 33. hollow threaded sleeve; 34. sealing plug; 35. side branch pipe; 5. oil pipeline; 51. center pipe; 52. oil hole; 53. suspended spring; 54. closed sliding plug; 4. braking device; 41. large tooth semicircular sleeve; 42. tension spring belt; 43. oblique slide plate; 44. thrust plate. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0026] use Figure 1-Figure 6 An aluminum alloy gearbox structure for high-speed railway according to one embodiment of the present invention is described as follows.

[0027] like Figure 1-Figure 6 As shown, an aluminum alloy gearbox structure for high-speed railways described in the present invention comprises a gearbox 1, and hydraulic devices 3 are fixedly connected to the front and rear sides of the outer surface of the gearbox 1.

[0028] The gearbox 1 includes a heat dissipation case 11, a brake device 4 is arranged on the left side of the inner wall of the heat dissipation case 11, a cover 12 is fixedly connected to the top of the inner wall of the heat dissipation case 11, a main rotating gear 13 is arranged on the left side of the inner wall of the heat dissipation case 11, a first passive gear 14 is arranged on the upper part of the inner wall of the heat dissipation case 11, a second passive gear 15 is arranged on the lower part of the inner wall of the heat dissipation case 11, a long shaft rod 16 is fixedly connected to the axis of the inner wall of the main rotating gear 13, and movable brushes 2 are evenly arranged on the upper and rear sides of the outer surface of the long shaft rod 16, and heat dissipation filter holes 18 are symmetrically opened on the front and rear sides of the inner wall of the heat dissipation case 11. One side of the outer surface of the plate brush 2 is movably connected to the outer surface of the heat dissipation box shell 11 through a heat dissipation filter hole 18. A connecting shaft 17 is fixedly connected to the axis of the inner wall of the first passive gear 14, and a connecting shaft 17 is fixedly connected to the axis of the inner wall of the second passive gear 15. Before using the device, the two ends of the long shaft 16 are connected to the rotating machine, and then the rotating machine controls the main rotating gear 13 inside the gear box 1 to rotate through the long shaft 16. During the rotation of the main rotating gear 13, the first passive gear 14 and the second passive gear 15 meshing with the outer surface of the main rotating gear 13 rotate accordingly, and then the other train components are controlled to be transmitted through the connecting shaft 17. Since the two first passive gears 14 and the second passive gears 15 are different in size, the rotation speeds of the two connecting shafts 17 are also different, so the gear box 1 can play a certain speed transmission function.

[0029] The hydraulic device 3 includes an oil storage tank 31, the upper part of the inner wall of the oil storage tank 31 is slidably connected with a middle hole pressure plate 32, the middle part of the upper surface of the middle hole pressure plate 32 is rotatably connected with a hollow threaded sleeve 33, the upper part of the inner wall of the hollow threaded sleeve 33 is slidably connected with a sealing plug 34, a connecting socket is provided on the left side of the lower part of the inner wall of the oil storage tank 31, a side branch pipe 35 is fixedly connected to the left side of the lower part of the inner wall of the oil storage tank 31 through the connecting socket, and the left end of the side branch pipe 35 is fixedly connected to the oil pipeline 5. Since the device is applied to the transmission of high-speed trains, and the speed of high-speed trains is relatively fast, the main rotating gear 13 and the first passive gear 14 and the first passive gear 15 are connected when the device is working. Is the working intensity between the two passive gears 15 too great? It is necessary to continuously use lubricating oil for lubrication to relieve the friction between the gears. Before lubrication, open the sealing plug 34 of the side hydraulic device 3, and pour lubricating oil into the interior of the oil storage tank 31 through the hollow threaded sleeve 33. After filling, insert the sealing plug 34 into the top of the hollow threaded sleeve 33. After the oil storage tank 31 is completely blocked, rotate the hollow threaded sleeve 33 clockwise. The hollow threaded sleeve 33 slowly descends along the threaded groove on the top of the inner wall of the oil storage tank 31, pressing the middle hole pressure plate 32 downward, and the lubricating oil below, after being squeezed, enters the oil delivery pipe 5 through the side branch pipes 35 on both sides.

[0030] The oil pipeline 5 includes a central tube 51, and oil holes 52 are evenly opened in the middle of the inner wall of the central tube 51. Closed sliding plugs 54 are symmetrically arranged on the front and rear sides of the inner wall of the central tube 51. A suspension spring 53 is fixedly connected to the outer surface of the closed sliding plug 54 near the middle of the central tube 51. After the lubricating oil enters both ends of the oil pipeline 5, the closed sliding plugs 54 on both sides are squeezed toward the middle of the central tube 51 under the action of pressure, and the suspension spring 53 is compressed. Then, the oil holes 52 are opened one after another, and the lubricating oil is sprayed to the outside through the oil holes 52. The oil pipeline 5 is located between the main rotating gear 13, the first passive gear 14 and the second passive gear 15, so the sprayed lubricating oil can lubricate the three gears at the same time.

[0031] The two sides of the outer surface of the central tube 51 are rotatably connected to the middle of the inner wall of the heat dissipation box shell 11 through the central hole, and the front and rear ends of the central tube 51 are rotatably connected to the bottom end of the side branch through pipe 35. There are two closed sliding plugs 54, and the outer surface of the closed sliding plug 54 is slidably connected to the inner wall of the central tube 51. After the injection of the lubricating oil is completed, the rotation of the hollow threaded sleeve 33 is stopped, and the pressure inside the hydraulic device 3 gradually decreases. Therefore, the suspension spring 53 slowly pushes the closed sliding plugs 54 on both sides to the two ends of the central tube 51 during the recovery process, discharges the residual lubricating oil inside the central tube 51, and isolates the lubricating oil inside the oil storage tank 31 from the central tube 51 to prevent the lubricating oil inside the oil storage tank 31 from being contaminated and deteriorated.

[0032] The outer surface of the hollow threaded sleeve 33 is threadedly connected to the axis of the upper inner wall of the oil storage tank 31, the lower inner wall of the oil storage tank 31 is filled with lubricating oil, and the left side of the outer surface of the oil storage tank 31 is movably connected to the right side of the outer surface of the heat dissipation box shell 11.

[0033] Both ends of the long shaft rod 16 extend to the outside of the heat sink case 11, and both sides of the outer surface of the long shaft rod 16 are rotatably connected to the inner wall of the heat sink case 11. There are two connecting shaft rods 17, and both ends of the connecting shaft rod 17 extend to the outside of the heat sink case 11, and both sides of the outer surface of the connecting shaft rod 17 are rotatably connected to the inner wall of the heat sink case 11. The outer surface of the main rotating gear 13 is meshed with the outer surface of the first driven gear 14, and the outer surface of the main rotating gear 13 is meshed with the outer surface of the second driven gear 15.

[0034] The movable plate brush 2 includes a fixed shell 21, the inner wall of which is slidably connected with an adapter plate 22, and the bottom end of the adapter plate 22 is evenly provided with fine brush heads 23. During the rotation of the fixed shell 21, the outer surface of the fixed shell 21 will rub against the two ends of the outer surface of the center tube 51, and then drive the center tube 51 to rotate through the friction force. Therefore, the center tube 51 will continue to rotate during the oil spray lubrication process, and the lubricating oil inside the center tube 51 will be thrown out from the inside of the center tube 51 under the action of centrifugal force, thereby reducing the residual lubricating oil inside the center tube 51 and making the sprayed lubricating oil more uniform.

[0035] The number of fixed shells 21 is twelve. The left side of the outer surface of the fixed shell 21 is fixedly connected to the outer surface of the long shaft rod 16. The bottom end of the fine brush head 23 is movably connected to the outer surface of the heat dissipation box shell 11 through the heat dissipation filter hole 18. The right side of the outer surface of the fixed shell 21 is movably connected to one side of the outer surface of the central tube 51. In order to ensure the heat dissipation effect of the internal gears, heat dissipation filter holes 18 are evenly opened on the inner wall of the heat dissipation box shell 11 close to the side of the main rotating gear 13 with the largest load to ensure the heat dissipation effect of the gears. When the gear box 1 is working, the internal pressure will be relatively high due to the high temperature, so gas passes through the heat dissipation filter holes 18. The heat dissipation filter holes 18 are easily blocked by dust and impurities, so a movable plate brush 2 is provided. When the long shaft rod 16 rotates, the fine brush head 23 continuously sweeps the outer surface of the heat dissipation box shell 11 under the rotation of the long shaft rod 16, thereby removing impurities on the outer surface of the heat dissipation filter hole 18, and the adapter plate 22 can be taken out from the inside of the fixed shell 21, which is convenient for replacement and is beneficial to subsequent maintenance work.

[0036] The braking device 4 includes a large-toothed semicircular sleeve 41, a thrust plate 44 is fixedly connected to the middle of the left side of the outer surface of the large-toothed semicircular sleeve 41, an oblique slide plate 43 is symmetrically arranged on the left side of the outer surface of the large-toothed semicircular sleeve 41, and a tension spring belt 42 is fixedly connected to the middle of the outer surface of the oblique slide plate 43 away from the thrust plate 44.

[0037] The right side of the outer surface of the large toothed semicircular sleeve 41 is clamped with the left side of the outer surface of the main rotating gear 13. There are two oblique slide plates 43. The top of the oblique slide plate 43 is slidably connected to the left side of the inner wall of the heat dissipation box shell 11. The bottom end of the oblique slide plate 43 is rotatably connected to the left side of the outer surface of the large toothed semicircular sleeve 41 through a rotating joint. There are two tension spring belts 42. One end of the tension spring belt 42 is fixedly connected to the middle part of the outer surface of the oblique slide plate 43 away from the thrust plate 44, and the other end of the tension spring belt 42 is fixedly connected to the inner wall of the heat dissipation box shell 11. The middle part of the outer surface of the thrust plate 44 It is slidably connected to the left side of the inner wall of the heat sink shell 11. In the non-working state, the thrust plate 44 is pushed to the right, and the large-toothed semicircular sleeve 41 engages with the outer surface of the main rotating gear 13 through its own large locking teeth, thereby locking the main rotating gear 13 and preventing the main rotating gear 13 from rotating, thereby playing a safety role. After the thrust plate 44 is unloaded, the tension spring belts 42 on both sides pull the oblique slide plate 43 to both sides, and the large-toothed semicircular sleeve 41 and the thrust plate 44 both move to the left. At this time, the large-toothed semicircular sleeve 41 is separated from the main rotating gear 13, and the locking effect is lost, and the gear box 1 can be used normally.

[0038] The diameter of the first driven gear 14 is larger than that of the second driven gear 15 , and the length of the long shaft 16 is longer than that of the connecting shaft 17 .

[0039] The specific workflow is as follows: Before using the device, the two ends of the long shaft rod 16 are connected to the rotating machine, and then the rotating machine controls the main rotating gear 13 inside the gear box 1 to rotate through the long shaft rod 16. During the rotation of the main rotating gear 13, the first passive gear 14 and the second passive gear 15 meshing with the outer surface of the main rotating gear 13 rotate accordingly, and then the other train components are controlled to be transmitted through the connecting shaft rod 17. Since the two first passive gears 14 and the second passive gears 15 are of different sizes, the rotation speeds of the two connecting shaft rods 17 are also different, so the gear box 1 can play a certain speed transmission function.

[0040] Since the device is used in the transmission of high-speed trains and the speed of high-speed trains is relatively fast, the working intensity between the main rotating gear 13 and the first passive gear 14 and the second passive gear 15 is too large when the device is working. Lubricating oil needs to be continuously used for lubrication to relieve the friction between the gears. Before lubrication, the sealing plug 34 of the side hydraulic device 3 is opened, and the lubricating oil is poured into the interior of the oil storage tank 31 through the hollow threaded sleeve 33. After filling, the sealing plug 34 is inserted into the top of the hollow threaded sleeve 33. After the oil storage tank 31 is completely blocked, the hollow threaded sleeve 33 is rotated clockwise, and the hollow threaded sleeve 33 slowly descends along the threaded groove on the top of the inner wall of the oil storage tank 31, pressing the middle hole pressure plate 32 downward, and the lubricating oil below enters the oil delivery pipe 5 through the side branch pipes 35 on both sides after being squeezed.

[0041] After the lubricating oil enters both ends of the oil delivery pipe 5, under the action of pressure, the closed sliding plugs 54 on both sides are squeezed toward the middle of the central tube 51, the suspension spring 53 is compressed, and then the oil holes 52 are opened one after another, and the lubricating oil is sprayed to the outside through the oil holes 52. The oil delivery pipe 5 is located between the main rotating gear 13, the first passive gear 14 and the second passive gear 15, so the sprayed lubricating oil can lubricate the three gears at the same time.

[0042] In order to ensure the heat dissipation effect of the internal gears, heat dissipation filter holes 18 are evenly opened on the inner wall of the heat dissipation box shell 11 on the side close to the main rotating gear 13 with the largest load to ensure the heat dissipation effect of the gears. When the gear box 1 is working, the internal pressure will be relatively high due to the high temperature, so gas will pass through the heat dissipation filter holes 18. The heat dissipation filter holes 18 are easily blocked by dust and impurities, so a movable plate brush 2 is provided. When the long shaft rod 16 rotates, the fine brush head 23 continuously sweeps the outer surface of the heat dissipation box shell 11 under the rotation of the long shaft rod 16, thereby removing impurities on the outer surface of the heat dissipation filter holes 18, and the adapter plate 22 can be taken out from the inside of the fixed shell 21, which is convenient for replacement and conducive to subsequent maintenance work.

[0043] During the rotation of the fixed outer shell 21, the outer surface of the fixed outer shell 21 will rub against the two ends of the outer surface of the center tube 51, and then drive the center tube 51 to rotate through the friction force. Therefore, the center tube 51 will continue to rotate during the oil spray lubrication process, and the lubricating oil inside the center tube 51 will be thrown out from the inside of the center tube 51 under the action of centrifugal force, thereby reducing the residual lubricating oil inside the center tube 51 and making the sprayed lubricating oil more uniform.

[0044] After the injection of the lubricating oil is completed, the rotation of the hollow threaded sleeve 33 is stopped, and the pressure inside the hydraulic device 3 gradually decreases. Therefore, the suspension spring 53 slowly pushes the closed sliding plugs 54 on both sides to the two ends of the central tube 51 during the recovery process, discharges the residual lubricating oil inside the central tube 51, and isolates the lubricating oil inside the oil storage tank 31 from the central tube 51 to prevent the lubricating oil inside the oil storage tank 31 from being contaminated and deteriorated.

[0045] In the non-working state, the thrust plate 44 is pushed to the right, and the large-toothed semicircular sleeve 41 meshes with the outer surface of the main rotating gear 13 through its own large locking teeth, thereby locking the main rotating gear 13 and preventing the main rotating gear 13 from rotating, thereby playing a safety role. After the thrust plate 44 is unloaded, the tension spring belts 42 on both sides pull the oblique slide plate 43 to both sides, and the large-toothed semicircular sleeve 41 and the thrust plate 44 both move to the left. At this time, the large-toothed semicircular sleeve 41 is separated from the main rotating gear 13, and the locking effect is lost, and the gear box 1 can be used normally.

[0046] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An aluminum alloy gearbox structure for high-speed rail, comprising a gearbox (1), characterized in that: Hydraulic devices (3) are fixedly connected to the front and rear sides of the outer surface of the gear box (1); The gearbox (1) comprises a heat dissipation case (11), a brake device (4) is arranged on the left side of the inner wall of the heat dissipation case (11), a cover (12) is fixedly connected to the top of the inner wall of the heat dissipation case (11), a main rotating gear (13) is arranged on the left side of the inner wall of the heat dissipation case (11), a first passive gear (14) is arranged on the upper part of the inner wall of the heat dissipation case (11), a second passive gear (15) is arranged on the lower part of the inner wall of the heat dissipation case (11), and the inner wall of the main rotating gear (13) is fixedly connected to the inner wall of the main rotating gear (13) at the axis center. A long shaft rod (16) is connected, and movable brushes (2) are evenly arranged on both sides of the upper rear of the outer surface of the long shaft rod (16); heat dissipation filter holes (18) are symmetrically opened on the front and rear sides of the inner wall of the heat dissipation box shell (11); one side of the outer surface of the movable brush (2) is movably connected to the outer surface of the heat dissipation box shell (11) through the heat dissipation filter hole (18); a connecting shaft rod (17) is fixedly connected to the axis center of the inner wall of the first passive gear (14); and a connecting shaft rod (17) is fixedly connected to the axis center of the inner wall of the second passive gear (15); The hydraulic device (3) comprises an oil storage tank (31), the upper part of the inner wall of the oil storage tank (31) is slidably connected to a center hole pressure plate (32), the middle part of the upper surface of the center hole pressure plate (32) is rotatably connected to a hollow threaded sleeve (33), the upper part of the inner wall of the hollow threaded sleeve (33) is slidably connected to a sealing plug (34), a connection socket is provided on the left side of the lower part of the inner wall of the oil storage tank (31), a side branch through pipe (35) is fixedly connected to the left side of the lower part of the inner wall of the oil storage tank (31) through the connection socket, and the left end of the side branch through pipe (35) is fixedly connected to an oil delivery pipe (5); The oil delivery pipe (5) comprises a central pipe (51), the middle portion of the inner wall of the central pipe (51) being provided with oil holes (52) evenly spaced, closed sliding plugs (54) being symmetrically arranged on the front and rear sides of the inner wall of the central pipe (51), and a suspension spring (53) being fixedly connected to one side of the outer surface of the closed sliding plug (54) close to the middle portion of the central pipe (51).

2. The aluminum alloy gearbox structure for high-speed rail according to claim 1, characterized in that: Both sides of the outer surface of the central tube (51) are rotatably connected to the middle of the inner wall of the heat sink shell (11) through the central hole, and both the front and rear ends of the central tube (51) are rotatably connected to the bottom end of the side branch through tube (35). There are two closed sliding plugs (54), and the outer surface of the closed sliding plug (54) is slidably connected to the inner wall of the central tube (51).

3. The aluminum alloy gearbox structure for high-speed rail according to claim 1, characterized in that: The outer surface of the hollow threaded sleeve (33) is threadedly connected to the axis of the upper portion of the inner wall of the oil storage tank (31); the lower portion of the inner wall of the oil storage tank (31) is filled with lubricating oil; and the left side of the outer surface of the oil storage tank (31) is movably connected to the right side of the outer surface of the heat sink shell (11).

4. The aluminum alloy gearbox structure for high-speed rail according to claim 1, characterized in that: Both ends of the long shaft rod (16) extend to the outside of the heat sink casing (11), and both sides of the outer surface of the long shaft rod (16) are rotatably connected to the inner wall of the heat sink casing (11). There are two connecting shaft rods (17), and both ends of the connecting shaft rod (17) extend to the outside of the heat sink casing (11), and both sides of the outer surface of the connecting shaft rod (17) are rotatably connected to the inner wall of the heat sink casing (11). The outer surface of the main rotating gear (13) is meshingly connected to the outer surface of the first driven gear (14), and the outer surface of the main rotating gear (13) is meshingly connected to the outer surface of the second driven gear (15).

5. The aluminum alloy gearbox structure for high-speed rail according to claim 2, characterized in that: The movable brush (2) comprises a fixed outer shell (21), the inner wall of which is slidably connected with an adapting plug plate (22), and the bottom end of the adapting plug plate (22) is evenly provided with thin brush heads (23).

6. The aluminum alloy gearbox structure for high-speed railway according to claim 5, characterized in that: The number of the fixed outer shells (21) is twelve. The left side of the outer surface of the fixed outer shell (21) is fixedly connected to the outer surface of the long shaft rod (16). The bottom end of the fine brush head (23) is movably connected to the outer surface of the heat dissipation box shell (11) through the heat dissipation filter hole (18). The right side of the outer surface of the fixed outer shell (21) is movably connected to one side of the outer surface of the central tube (51).

7. The aluminum alloy gearbox structure for high-speed railway according to claim 1, characterized in that: The braking device (4) comprises a large-toothed semicircular sleeve (41), a thrust plate (44) being fixedly connected to the middle of the left side of the outer surface of the large-toothed semicircular sleeve (41), an oblique slide plate (43) being symmetrically arranged on the left side of the outer surface of the large-toothed semicircular sleeve (41), and a tension spring belt (42) being fixedly connected to the middle of the outer surface of the oblique slide plate (43) away from the thrust plate (44).

8. The aluminum alloy gearbox structure for high-speed railway according to claim 7, characterized in that: The right side of the outer surface of the large toothed semicircular sleeve (41) is clamped with the left side of the outer surface of the main rotating gear (13); the number of the inclined slide plates (43) is two; the top end of the inclined slide plate (43) is slidably connected to the left side of the inner wall of the heat sink shell (11); the bottom end of the inclined slide plate (43) is rotatably connected to the left side of the outer surface of the large toothed semicircular sleeve (41) via a rotating joint; the number of the tension spring belts (42) is two; one end of the tension spring belt (42) is fixedly connected to the middle part of the outer surface of the inclined slide plate (43) away from the thrust plate (44) on one side; the other end of the tension spring belt (42) is fixedly connected to the inner wall of the heat sink shell (11); the middle part of the outer surface of the thrust plate (44) is slidably connected to the left side of the inner wall of the heat sink shell (11).

9. The aluminum alloy gearbox structure for high-speed railway according to claim 1, characterized in that: The diameter of the first passive gear (14) is larger than the diameter of the second passive gear (15), and the length of the long shaft rod (16) is longer than the length of the connecting shaft rod (17).

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