Conical surface thrust structure for replacing high-speed thrust bearing with high-speed gearbox

Abstract

The invention discloses a conical surface thrust structure for replacing a high-speed thrust bearing by a high-speed gear box, relates to the field of gear bearing structures, and solves the problems that the thrust bearing of the existing high-speed gear box is easy to damage to influence the use of equipment due to overlarge thrust and rotating speed difference during use. Comprising a lower shell, an upper shell, a driving gear, a thrust mechanism and a lubricating mechanism, the thrust mechanism comprises a large gear, a first conical surface ring and a second conical surface ring, and the lubricating mechanism comprises a spray head. Meanwhile, the driving gear rotates at a high speed to drive the bull gear to rotate at a reduced speed, when the bull gear rotates, lubricating oil at the bottom of the lower shell is pumped to the upper portion through linkage of the lubricating mechanism and output to the joint of the bull gear and the driving gear from the nozzle position, and the lubricating performance of the tooth surface and the conical surface position is improved; and the friction force in the rotating abutting process is reduced.

Description

Technical Field

[0001] This invention relates to the field of gear bearing structure technology, specifically to a conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes. Background Technology

[0002] In fields such as wind power, rail transportation, and high-end equipment manufacturing, high-speed gearboxes serve as core transmission components, and their operational reliability and load-bearing capacity directly determine the overall efficiency and service life of the equipment. As downstream industries continue to increase their requirements for equipment power density and speed levels, the axial force bearing capacity of gearboxes under high-speed and heavy-load conditions is becoming increasingly prominent. As a key component for axial force transmission, the performance optimization of thrust components has become a core direction for overcoming technical bottlenecks.

[0003] Currently, the sliding bearings used in high-speed rotors of high-speed gearboxes on the market generally consist of two radial sliding bearings and two axial thrust bearings. Because high-speed gearboxes are widely used in turbine compressors, the thrust bearings on the high-speed gear rotor rotate at high speeds, making them prone to damage. This can lead to instability in the high-speed rotor of the gearbox connected to the turbine compressor, potentially causing the entire turbine compressor to fail and become inoperable. Summary of the Invention

[0004] The purpose of this invention is to provide a conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes, which facilitates the dispersion of axial thrust on high-speed drive gears, improves equipment service life and operational stability, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a conical thrust-stop structure for replacing high-speed thrust bearings in high-speed gearboxes, comprising a lower housing, a drive gear, a thrust-stop mechanism, and a lubrication mechanism. An upper housing is bolted to the upper side of the lower housing. The thrust-stop mechanism includes two sets of large gears meshing with the drive gear. The pitch circle radius of the large gears is larger than that of the drive gear. The axis of the drive gear is located at the center of the line connecting the axes of the two sets of large gears. A first conical ring and a second conical ring are provided inside the lower housing. Both outer edges of the drive gear and the large gears are conical. The thrust-stop mechanism can abut against the outer edges of the drive gear and the large gears through the first and second conical rings. Simultaneously, the high-speed rotation of the drive gear drives the large gear to decelerate and rotate. By restricting the axial movement of the large gear, the axial push of the drive gear is achieved. The lubrication mechanism includes two sets of nozzles mounted on the upper housing. The output ends of the two sets of nozzles are respectively directed towards the joint between the large gears on both sides and the drive gear in the middle. When the large gear rotates, the lubrication mechanism can simultaneously draw lubricating oil from the bottom of the lower housing to the top and output it from the nozzle position to the connection between the large gear and the drive gear, thereby improving the lubrication performance of the tooth surface and the conical surface, generating an oil film at the gap position, reducing the friction during the rotational contact process, facilitating the dispersion of the axial thrust on the high-speed drive gear, and improving the service life and operational stability of the equipment.

[0006] Preferably, the thrust-stopping mechanism further includes two sets of side plates that can engage with the inner walls of the lower housing and the upper housing. The two sets of side plates are located on both sides of the drive gear. The first conical ring has two sections, and the conical surfaces are respectively fitted and slidably attached to the outer edges of both sides of the drive gear. The second conical ring has four sections, and they are respectively fitted and slidably attached to the outer edges of both sides of the two sets of large gears. Both the first and second conical rings are rotatably connected to the side plates. The side of the side plate is provided with a connecting member for connecting and limiting the drive gear and the large gear, so as to use the high-speed rotation of the drive gear to drive the large gear to decelerate and rotate, and achieve the purpose of axially pushing the drive gear by restricting the axial movement of the large gear.

[0007] Preferably, the connector includes a drive shaft coaxially fixedly mounted on the drive gear, a rotating shaft coaxially fixedly connected to the large gear, the drive shaft passing through the side plate and not contacting the inner wall of the side plate, two sets of inner roller assemblies fixedly connected to both the drive shaft and the rotating shaft, an outer ring sleeved on the outer side of the inner roller assembly, two sets of snap-fit ​​blocks fixedly connected to the outer wall of the outer ring, and a snap-fit ​​component provided inside the lower housing for limiting the snap-fit ​​blocks, facilitating the connection and limiting of the drive gear and the large gear.

[0008] Preferably, the snap-fit ​​component includes an upper snap-fit ​​plate and a lower snap-fit ​​plate that can snap into each other. The upper snap-fit ​​plate and the lower snap-fit ​​plate are fixedly connected by bolts. Each of the upper snap-fit ​​plate and the lower snap-fit ​​plate has a snap-fit ​​groove that can snap into the outer ring and the snap-fit ​​block. The upper snap-fit ​​plate and the lower snap-fit ​​plate can snap into the inner wall of the upper shell and the lower shell, which facilitates the limiting of the snap-fit ​​block.

[0009] Preferably, the side plate has a insertion hole, into which an insertion cylinder is inserted. A roller plate is fixedly connected to the outer wall of the insertion cylinder, and multiple sets of cylindrical rollers are rotatably connected to the roller plate. Guide rings are fixedly connected to both sides of the large gear, and the cylindrical rollers are tactilely connected to the sides of the guide rings. The rotating shaft passes through the insertion cylinder and does not contact the inner wall of the insertion cylinder, which helps to reduce the frictional force generated by the axial thrust on both sides of the large gear.

[0010] Preferably, the lubrication mechanism further includes an oil storage box fixedly installed inside the upper housing. The side of the oil storage box is connected to an output pipe, one end of the output pipe is connected to a connecting box, and the bottom of the connecting box is connected to two sets of connecting pipes. The two sets of connecting pipes are respectively connected to two sets of nozzles. The bottom of the connecting box is connected to two sets of first pair of connecting pipes. The side plate is provided with a conveying component for conveying lubricating oil, and the upper housing is provided with a pumping component for pumping lubricating oil. This facilitates the simultaneous pumping of lubricating oil from the bottom of the lower housing to the top and outputting it from the nozzle position to the connection between the large gear and the drive gear when the large gear rotates. This improves the lubrication performance of the tooth surface and the conical surface, generates an oil film in the gap position, and reduces the friction during rotational contact.

[0011] Preferably, the conveying component includes multiple sets of rotating rings rotatably connected to the inner wall of the side plate. The first conical ring is coaxially fitted and rotates with one set of the rotating rings. A first pipe is provided inside the side plate. The first connecting pipe can be inserted into the upper end of the first pipe. The bottom end of the first pipe is fitted with the outer wall of the multiple sets of rotating rings to facilitate the conveying of lubricating oil.

[0012] Preferably, the pumping component includes a rotating rod rotatably connected to the upper housing. A transmission gear is coaxially fixedly connected to the outer wall of the rotating rod. The transmission gear can mesh with the large gear on one side. Volutes are coaxially rotatably connected to both sides of the transmission gear. The volutes are fixedly connected to the upper housing. The rotating rod passes through the volute and is rotatably connected to the inner wall of the volute. An impeller is rotatably connected to the inner wall of the volute. The impeller is coaxially fixedly connected to the rotating rod, which facilitates the pumping of lubricating oil.

[0013] Preferably, the pumping component further includes a second pair of connecting pipes communicating with the middle of the volute. The outer wall of the volute is connected to a conveying pipe communicating with the oil storage box. The conveying pipe is located above the output pipe. A filter element is fixedly connected inside the oil storage box. The filter element is located in the middle of the conveying pipe and the output pipe. A triangular groove is formed at the bottom of the inner wall of the lower housing. A triangular plate that can be inserted into the triangular groove is fixedly connected to the bottom of the side plate. A second pipe is formed on the triangular plate and the side plate. The bottom end of the second pipe is connected to the side of the triangular groove. The second pair of connecting pipes can be inserted into the top end of the second pipe.

[0014] Preferably, the oil storage box is provided with a top cover on the upper side, and the top cover is provided with an exhaust valve that can control the gas to be discharged unidirectionally from the oil storage box to the outside. A connecting ring is sleeved between the upper shell and the lower shell. The connecting ring is fixedly connected to the upper shell and the lower shell by bolts, which facilitates connection and gas transportation. Opening the top cover allows lubricating oil to be added to the oil storage box.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes. It solves the problem that existing high-speed gearbox thrust bearings experience excessive thrust and speed differences, leading to damage and affecting equipment operation. The structure uses a first and second conical ring to abut the outer edges of the drive gear and the large gear, dispersing the axial thrust of the drive gear. Simultaneously, the high-speed rotation of the drive gear drives the large gear to decelerate, thus limiting the axial movement of the large gear and achieving axial thrust on the drive gear. Furthermore, as the large gear rotates, a lubrication mechanism draws lubricating oil from the bottom of the lower housing to the top and outputs it from the nozzle to the connection between the large gear and the drive gear, improving the lubrication performance of the tooth surface and conical surface, generating an oil film at the gap, and reducing friction during rotational contact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the lower housing of the present invention in its disassembled state; Figure 4 This is a partial structural cross-sectional view of the lubrication mechanism of the present invention; Figure 5 for Figure 4 Enlarged view of region A in the middle; Figure 6 for Figure 4 Enlarged view of region B in the middle; Figure 7 This is a partial structural breakdown diagram of the thrust-stopping mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of region C; Figure 9 for Figure 7 Enlarged view of region D in the middle; Figure 10 This is a partial structural exploded view of the lubrication mechanism of the present invention; Figure 11 This is a partial structural cross-sectional view of the thrust-stopping mechanism of the present invention; Figure 12 for Figure 11 Enlarged view of region E in the middle.

[0017] In the diagram: 1-Lower housing; 2-Drive gear; 3-Upper housing; 4-Large gear; 5-First conical ring; 6-Second conical ring; 7-Nozzle; 8-Side plate; 9-Drive shaft; 10-Rotating shaft; 11-Inner roller assembly; 12-Outer ring; 13-Snap-fit ​​block; 14-Upper snap-fit ​​plate; 15-Lower snap-fit ​​plate; 16-Snap-fit ​​groove; 17-Insertion hole; 18-Insertion cylinder; 19-Roller plate; 20-Columnar roller; 21-Guide 22-Oil reservoir; 23-Output pipe; 24-Connecting box; 25-Connecting pipe; 26-First pair of connecting pipes; 27-Rotating ring; 28-First pipeline; 29-Rotating rod; 30-Transmission gear; 31-Vortex; 32-Impeller; 33-Second pair of connecting pipes; 34-Conveying pipe; 35-Filter element; 36-Triangular groove; 37-Triangular plate; 38-Second pipeline; 39-Top cover; 40-Exhaust valve; 41-Sleeve ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-12This invention provides a technical solution: a conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes, comprising a lower housing 1, a drive gear 2, a thrust mechanism, and a lubrication mechanism. An upper housing 3 is bolted to the upper side of the lower housing 1. A connecting ring 41 is sleeved between the upper housing 3 and the lower housing 1, and the connecting ring 41 is bolted to both the upper housing 3 and the lower housing 1. The thrust mechanism includes two sets of large gears 4 meshing with the drive gear 2. The pitch circle radius of the large gears 4 is larger than that of the drive gear 2. The axis of the drive gear 2 is located at the center of the line connecting the axes of the two sets of large gears 4. A first conical ring 5 and a second conical ring 6 are provided inside the lower housing 1. Both outer edges of the drive gear 2 and the large gears 4 are conical. The thrust mechanism can abut against the outer edges of the drive gear 2 and the large gear 4 through the first conical ring 5 and the second conical ring 6. At the same time, the high-speed rotation of the drive gear 2 drives the large gear 4 to decelerate and rotate. By restricting the axial movement of the large gear 4, the mechanism achieves the purpose of axially pushing the drive gear 2. The lubrication mechanism includes two sets of nozzles 7 installed on the upper housing 3. The output ends of the two sets of nozzles 7 are respectively facing the joint between the large gear 4 on both sides and the drive gear 2 in the middle. When the large gear 4 rotates, the lubrication mechanism can draw the lubricating oil from the bottom of the lower housing 1 to the top and output it from the nozzle 7 to the joint between the large gear 4 and the drive gear 2, thereby improving the lubrication performance of the tooth surface and the conical surface, generating an oil film in the gap, and reducing the friction during the rotational contact process.

[0020] Please see Figures 3-12 The thrust-stop mechanism shown in the diagram also includes two sets of side plates 8 that can engage with the inner walls of the lower housing 1 and the upper housing 3. The two sets of side plates 8 are located on both sides of the drive gear 2. Two first conical rings 5 ​​are provided, with their conical surfaces sliding against the outer edges of both sides of the drive gear 2. Four second conical rings 6 are provided, sliding against the outer edges of both sides of the two sets of large gears 4. Both the first and second conical rings 5 ​​and 6 are rotatably connected to the side plates 8. The conical surfaces of the large gears 4 and the drive gear 2, as well as the conical surfaces of the first and second conical rings 5 ​​and 6, require surface hardening treatment. The side plates 8... The side is provided with a connecting member for connecting and limiting the drive gear 2 and the large gear 4. The connecting member includes a drive shaft 9 coaxially fixedly installed on the drive gear 2, and a rotating shaft 10 coaxially fixedly connected to the large gear 4. The drive shaft 9 passes through the side plate 8 and does not contact the inner wall of the side plate 8. Two sets of inner roller assemblies 11 are fixedly connected to the drive shaft 9 and the rotating shaft 10 respectively. An outer ring 12 is sleeved on the outer side of the inner roller assembly 11. Two sets of snap-fit ​​blocks 13 are fixedly connected to the outer wall of the outer ring 12. The lower housing 1 is provided with a snap-fit ​​member for limiting the snap-fit ​​blocks 13.

[0021] Please see Figures 4-9The snap-fit ​​components shown in the figure include an upper snap-fit ​​plate 14 and a lower snap-fit ​​plate 15 that can snap together. The upper snap-fit ​​plate 14 and the lower snap-fit ​​plate 15 are fixedly connected by bolts. Both the upper snap-fit ​​plate 14 and the lower snap-fit ​​plate 15 are provided with snap-fit ​​grooves 16 that can snap together with the outer ring 12 and the snap-fit ​​block 13. The upper snap-fit ​​plate 14 and the lower snap-fit ​​plate 15 can snap together with the inner walls of the upper shell 3 and the lower shell 1. The side plate 8 is provided with a plug-in hole 17. A plug-in cylinder 18 is inserted into the plug-in hole 17. A roller plate 19 is fixedly connected to the outer wall of the plug-in cylinder 18. Multiple sets of cylindrical rollers 20 are rotatably connected to the roller plate 19. Guide rings 21 are fixedly connected to both sides of the large gear 4. The cylindrical rollers 20 are rotatably connected to the sides of the guide rings 21. The rotating shaft 10 passes through the plug-in cylinder 18 and does not contact the inner wall of the plug-in cylinder 18.

[0022] Please see Figures 4-10 The lubrication mechanism shown in the figure also includes an oil reservoir 22 fixedly installed inside the upper housing 3. An output pipe 23 is connected to the side of the oil reservoir 22, and one end of the output pipe 23 is connected to a connecting box 24. Two sets of connecting pipes 25 are connected to the bottom of the connecting box 24, and the two sets of connecting pipes 25 are respectively connected to two sets of nozzles 7. Two sets of first connecting pipes 26 are also connected to the bottom of the connecting box 24. A conveying component for conveying lubricating oil is provided inside the side plate 8, and a conveying component for lubricating oil is provided inside the upper housing 3. The oil pumping component includes multiple sets of rotating rings 27 rotatably connected to the inner wall of the side plate 8. The first conical ring 5 rotates coaxially with one set of rotating rings 27. A first pipe 28 is provided inside the side plate 8. A first connecting pipe 26 can be inserted into the upper end of the first pipe 28. The bottom end of the first pipe 28 is attached to the outer wall of the multiple sets of rotating rings 27. A top cover 39 is provided on the upper side of the oil storage box 22. An exhaust valve 40 is provided on the top cover 39 to control the gas to be discharged unidirectionally from the oil storage box 22 to the outside.

[0023] Please see Figures 4-10The drawing component shown in the figure includes a rotating rod 29 rotatably connected to the upper housing 3. A transmission gear 30 is coaxially fixedly connected to the outer wall of the rotating rod 29. The transmission gear 30 can mesh with a large gear 4 on one side. A volute 31 is coaxially rotatably connected to both sides of the transmission gear 30. The volute 31 is fixedly connected to the upper housing 3. The rotating rod 29 passes through the volute 31 and is rotatably connected to the inner wall of the volute 31. An impeller 32 is rotatably connected to the inner wall of the volute 31. The impeller 32 is coaxially fixedly connected to the rotating rod 29. The drawing component also includes a second pair of connecting pipes 33 that communicate with the middle of the volute 31. The outer wall of the lower housing 1 is connected to a conveying pipe 34 that is connected to the oil storage box 22. The conveying pipe 34 is located above the output pipe 23. A filter element 35 is fixedly connected inside the oil storage box 22. The filter element 35 is located in the middle of the conveying pipe 34 and the output pipe 23. A triangular groove 36 is provided at the bottom of the inner wall of the lower housing 1. A triangular plate 37 that can be inserted into the triangular groove 36 is fixedly connected to the bottom of the side plate 8. A second pipe 38 is provided on the triangular plate 37 and the side plate 8. The bottom end of the second pipe 38 is connected to the side of the triangular groove 36. A second connecting pipe 33 can be inserted into the top end of the second pipe 38.

[0024] Working principle: When the drive shaft 9 drives the drive gear 2 to rotate at high speed, the drive gear 2 drives the large gears 4 on both sides to rotate. At the same time, the inner roller assembly 11 on the drive shaft 9 and the rotating shaft 10 respectively engages with the outer ring 12 and rotates. The outer ring 12 is limited by the upper clamping plate 14 and the lower clamping plate 15 on the upper and lower clamping blocks 13. The upper clamping plate 14 and the lower clamping plate 15 are each provided in two sets and are located on both sides of the drive gear 2. This allows the drive gear 2 and drive shaft 9 to be combined with the large gears 4 on both sides and the rotating shaft 10 by the upper clamping plate 14 and the lower clamping plate 15. The axial thrust of the drive gear 2 is transmitted to the large gears on both sides through the upper clamping plate 14 and the lower clamping plate 15. 4. The meshing state between the large gear 4 and the drive gear 2 is always maintained. The axial thrust on the large gear 4 will roll through the guide ring 21 against the cylindrical rollers 20, reducing the friction between the large gear 4 and the sides. At the same time, since the radius of the large gear 4 is larger, more cylindrical rollers 20 can be set, and the contact area is larger, making the support for the large gear 4 more stable. Meanwhile, since the rotation speed of the large gear 4 is lower than that of the drive gear 2, the rotation speed of the cylindrical rollers 20 is also reduced. This ensures that while providing stable support, the number of rotations of the cylindrical rollers 20 is reduced, thereby reducing the overall wear of the structure and improving the stability and service life of the equipment.

[0025] By setting the first conical ring 5, the second conical ring 6, and the lubrication mechanism, a suitable amount of lubricating oil is pre-input into the oil storage box 22. The lubricating oil enters the connecting box 24 through the output pipe 23, and then outputs from the bottom of the connecting box 24 to the connecting pipe 25 and the first coupling pipe 26. It is then transported to the nozzle 7 through the connecting pipe 25 and discharged to the position where the drive gear 2 meshes with the large gear 4 for lubrication. At the same time, excess lubricating oil overflows to both sides to the positions of the first conical ring 5 and the conical surface of the drive gear 2 for lubrication, forming an oil film. An oil film is also formed at the positions of the second conical ring 6 and the conical surface of the large gear 4. The structure can disperse its axial thrust and reduce the friction between the contact surfaces through the oil film. The lubricating oil is also delivered to the first pipe 28 through the first connecting pipe 26, thereby lubricating the multiple sets of rotating rings 27. Since the drive gear 2 rotates at a high speed, even if the friction between it and the first conical ring 5 is small, it will still drive the first conical ring 5 to rotate. At this time, the speed of the first conical ring 5 is reduced. Similarly, the first conical ring 5 drives the adjacent rotating ring 27 to rotate at a reduced speed. This process is repeated to gradually reduce the speed and avoid the situation where the speed difference between two adjacent friction surfaces is too large, which would lead to severe wear.

[0026] During installation, first, the drive gear 2, large gear 4, drive shaft 9, rotating shaft 10, and adjacent components are sleeved and installed between the two sets of side plates 8. The design of the insertion hole 17 and insertion sleeve 18 facilitates the disassembly and assembly of the side plates 8. Then, the upper clamping plate 14 and lower clamping plate 15 are aligned and bolted together, so that the upper clamping plate 14 and lower clamping plate 15 clamp and abut against the side plates 8 on both sides respectively. The whole assembly is inserted into the lower housing 1, so that the triangular plate 37 is inserted into the triangular groove 36. Then, the upper housing 3, together with the oil reservoir 22, transmission gear 30, and other structures, is vertically aligned with the upper housing 1. At this time, the transmission gear 30 may not be able to directly mesh with the large gear 4. In the design, one end of the rotating rod 29 extends out of the upper housing 3, so that it can be easily connected during the docking process. The position of the transmission gear 30 teeth is adjusted by slightly rotating the rotating rod 29 to ensure its meshing with the large gear 4. At the same time, the bottom of the first pair of connecting pipes 26 is inserted into the first pipe 28, and the bottom of the second pair of connecting pipes 33 is inserted into the top of the second pipe 38 to complete the connection of the pipes. The lower housing 1 and the upper housing 3 are fixed with bolts. A sealing structure can be set at the connection. At the same time, the two ends of the drive shaft 9 extend out. The position between the drive shaft 9 and the upper housing 3 and the lower housing 1 can also be connected by bearings to reduce the friction during rotation and to provide good limit for the drive shaft 9 to prevent shaking. The upper housing 3 and the lower housing 1 are sleeved and bolted together by the sleeve ring 41. The axis of the sleeve ring 41 is the same as that of the drive shaft 9. The above structure facilitates the disassembly, assembly and maintenance of the gearbox.

[0027] During the rotation of the large gear 4, the transmission gear 30 is driven to rotate. The transmission gear 30 drives the rotating rod 29 to rotate, causing the impellers 32 on both sides to rotate at high speed. The impellers 32 generate centrifugal force inside the volute 31, drawing the lubricating oil collected at the bottom of the triangular groove 36 into the second pipe 38 and conveying it upward to the second connecting pipe 33. Then, it enters the middle of the volute 31 and, after being centrifugated by the impellers 32, is output from the conveying pipe 34 to the oil storage box 22. The high-pressure gas is discharged through the exhaust valve 40. The exhaust valve 40 has small and dense vents, which can discharge gas while preventing the discharge of lubricating oil. The lubricating oil has a large gravity and falls onto the filter element 35 in the oil storage box 22. The filter element 35 uses an existing structure to perform preliminary filtration of the recovered lubricating oil to avoid damaging the gear teeth. After filtration, the lubricating oil is output again from the bottom output pipe 23, completing the cycle. This structure uses internal force to circulate the lubricating oil, improving the lubrication efficiency between the contact surfaces. The oil is continuously collected and used in a cycle, reducing the frequency of subsequent replacement and maintenance.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes, characterized in that, include: The lower housing (1) and the drive gear (2) are connected to the upper housing (3) by bolts. Also includes: The thrust-stop mechanism includes two sets of large gears (4) meshing with the drive gear (2). The lower housing (1) is provided with a first conical ring (5) and a second conical ring (6). The outer edges of both sides of the drive gear (2) and the large gear (4) are conical. The thrust-stop mechanism can abut against the outer edges of the drive gear (2) and the large gear (4) through the first conical ring (5) and the second conical ring (6). At the same time, the high-speed rotation of the drive gear (2) drives the large gear (4) to decelerate and rotate. By restricting the axial movement of the large gear (4), the axial push of the drive gear (2) is achieved. The lubrication mechanism includes two sets of nozzles (7) mounted on the upper housing (3). The output ends of the two sets of nozzles (7) are respectively directed toward the joint between the large gears (4) on both sides and the drive gear (2) in the middle. The lubrication mechanism can draw the lubricating oil at the bottom of the lower housing (1) to the top and output it from the nozzle (7) to the joint between the large gear (4) and the drive gear (2) when the large gear (4) rotates, thereby generating an oil film at the gap position.

2. The conical thrust bearing structure for replacing high-speed thrust bearings in high-speed gearboxes according to claim 1, characterized in that: The thrust-stopping mechanism also includes two sets of side plates (8) that can engage with the inner walls of the lower housing (1) and the upper housing (3). The two sets of side plates (8) are located on both sides of the drive gear (2). The first conical ring (5) has two parts, and the conical surface is respectively attached to the outer edges of the two sides of the drive gear (2). The second conical ring (6) has four parts, and is respectively attached to the outer edges of the two sets of large gears (4). The first conical ring (5) and the second conical ring (6) are rotatably connected to the side plate (8). The side of the side plate (8) is provided with a connecting member for connecting and limiting the drive gear (2) and the large gear (4).

3. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 2, characterized in that: The connector includes a drive shaft (9) coaxially fixedly mounted on the drive gear (2), a rotating shaft (10) coaxially fixedly connected to the large gear (4), the drive shaft (9) passing through the side plate (8) and not in contact with the inner wall of the side plate (8), two sets of inner roller assemblies (11) fixedly connected to the drive shaft (9) and the rotating shaft (10), an outer ring (12) sleeved on the outer side of the inner roller assembly (11), two sets of snap-fit ​​blocks (13) fixedly connected to the outer wall of the outer ring (12), and a snap-fit ​​component for limiting the snap-fit ​​block (13) is provided inside the lower housing (1).

4. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 3, characterized in that: The snap-fit ​​component includes an upper snap-fit ​​plate (14) and a lower snap-fit ​​plate (15) that can snap into each other. The upper snap-fit ​​plate (14) and the lower snap-fit ​​plate (15) are fixedly connected by bolts. The upper snap-fit ​​plate (14) and the lower snap-fit ​​plate (15) are respectively provided with snap-fit ​​grooves (16) that can snap into the outer ring (12) and the snap-fit ​​block (13). The upper snap-fit ​​plate (14) and the lower snap-fit ​​plate (15) can snap into the inner walls of the upper shell (3) and the lower shell (1).

5. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 4, characterized in that: The side plate (8) is provided with a plug hole (17), and a plug cylinder (18) is inserted into the plug hole (17). A roller plate (19) is fixedly connected to the outer wall of the plug cylinder (18). Multiple sets of cylindrical rollers (20) are rotatably connected to the roller plate (19). Guide rings (21) are fixedly connected to both sides of the large gear (4). The cylindrical rollers (20) are rotatably connected to the side of the guide rings (21). The rotating shaft (10) passes through the plug cylinder (18) and does not contact the inner wall of the plug cylinder (18).

6. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 2, characterized in that: The lubrication mechanism also includes an oil storage box (22) fixedly installed inside the upper housing (3). The side of the oil storage box (22) is connected to an output pipe (23). One end of the output pipe (23) is connected to a connecting box (24). The bottom of the connecting box (24) is connected to two sets of connecting pipes (25). The two sets of connecting pipes (25) are respectively connected to two sets of nozzles (7). The bottom of the connecting box (24) is connected to two sets of first connecting pipes (26). The side plate (8) is provided with a conveying component for conveying lubricating oil. The upper housing (3) is provided with a pumping component for pumping lubricating oil.

7. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 6, characterized in that: The conveying component includes multiple sets of rotating rings (27) rotatably connected to the inner wall of the side plate (8). The first conical ring (5) rotates coaxially with one set of the rotating rings (27). A first pipe (28) is provided inside the side plate (8). The first connecting pipe (26) can be inserted into the upper end of the first pipe (28). The bottom end of the first pipe (28) is attached to the outer wall of the multiple sets of rotating rings (27).

8. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 7, characterized in that: The pumping component includes a rotating rod (29) rotatably connected to the upper housing (3). A transmission gear (30) is coaxially fixedly connected to the outer wall of the rotating rod (29). The transmission gear (30) can mesh with the large gear (4) on one side. A volute (31) is coaxially rotatably connected to both sides of the transmission gear (30). The volute (31) is fixedly connected to the upper housing (3). The rotating rod (29) passes through the volute (31) and is rotatably connected to the inner wall of the volute (31). An impeller (32) is rotatably connected to the inner wall of the volute (31). The impeller (32) is coaxially fixedly connected to the rotating rod (29).

9. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 8, characterized in that: The pumping component also includes a second pair of pipes (33) connected to the middle of the volute (31). The outer wall of the volute (31) is connected to a conveying pipe (34) connected to the oil storage box (22). The conveying pipe (34) is located on the upper side of the output pipe (23). A filter element (35) is fixedly connected inside the oil storage box (22). The filter element (35) is located in the middle of the conveying pipe (34) and the output pipe (23). A triangular groove (36) is opened at the bottom of the inner wall of the lower housing (1). A triangular plate (37) that can be inserted into the triangular groove (36) is fixedly connected at the bottom of the side plate (8). A second pipe (38) is opened on the triangular plate (37) and the side plate (8). The bottom end of the second pipe (38) is connected to the side of the triangular groove (36). The second pair of pipes (33) can be inserted into the top end of the second pipe (38).

10. A conical thrust bearing structure for replacing a high-speed thrust bearing in a high-speed gearbox according to claim 6, characterized in that: The oil storage box (22) is provided with a top cover (39) on its upper side. The top cover (39) is provided with an exhaust valve (40) that can control the gas to be discharged from the oil storage box (22) to the outside in one direction. A sleeve ring (41) is sleeved between the upper shell (3) and the lower shell (1). The sleeve ring (41) is fixedly connected to the upper shell (3) and the lower shell (1) by bolts.

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