Gearbox output shaft dismounting device

Abstract

The utility model provides a gear box output shaft dismounting device for dismounting the output shaft in gear box, include: support part, support part has overhaul space, transfer part, transfer part sets up on support part, one end of transfer part extends away from support part, transfer part is used for driving output shaft transfer to overhaul space, drive part, one end of drive part sets up on the shell of gear box, the other end of drive part is connected with output shaft, drive part can drive output shaft, to make output shaft close or separate from the shell of gear box. Through setting up support part, transfer part and drive part, to dismount and overhaul the output shaft from gear box, through the overhaul space of support part setting up contains the output shaft in the process of dismounting and overhaul. When dismounting the output shaft, drive the output shaft movement through drive part, compared with the manpower transfer, is more laborsaving and reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine generator maintenance technology, and in particular to a gearbox output shaft disassembly device. Background Technology

[0002] The gearbox output shaft of a wind turbine generator rotates at high speed, transmitting torque to the generator. Prolonged high-speed, heavy-load operation causes significant wear on the output shaft bearings. After a certain period of operation, the bearings on the high-speed shaft of the gearbox need maintenance or replacement. As wind turbine generators become increasingly larger, the bearings on the gearbox output shaft are also becoming larger, making maintenance and replacement increasingly difficult.

[0003] Since gearbox maintenance often occurs at wind farms, removing the output shaft bearing requires penetrating the generator's interior. The limited working space inside the generator, coupled with the interference fit between the gearbox output shaft bearing and the gearbox housing, necessitates applying considerable force to remove it, all of which significantly complicate generator maintenance. The current maintenance solution involves separating the gearbox and generator, transporting the gearbox separately to a workshop with the necessary maintenance facilities, and using specialized tools to remove the gearbox output shaft. After maintenance, both the generator and gearbox must be disassembled and reassembled, making the maintenance process overly cumbersome, risky, costly, and consuming substantial manpower, resources, and time. Utility Model Content

[0004] The technical problem to be solved by this utility model is the shortcomings of the existing technology, such as the cumbersome maintenance process of gearbox output shaft, the need to disassemble complex structures, and the high maintenance cost. The present invention provides a gearbox output shaft disassembly device.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A gearbox output shaft disassembly device is provided for disassembling the output shaft in a gearbox. The gearbox output shaft disassembly device includes:

[0007] The support section has a maintenance space;

[0008] A transfer unit is disposed on the support unit, one end of which extends away from the support unit, and the transfer unit is used to drive the output shaft to transfer to the maintenance space;

[0009] The drive unit has one end disposed on the housing of the gearbox and the other end connected to the output shaft. The drive unit is capable of driving the output shaft to bring the output shaft closer to or away from the housing of the gearbox.

[0010] In this solution, a support unit, a transfer unit, and a drive unit are incorporated to facilitate the disassembly and maintenance of the output shaft from the gearbox. The support unit provides a maintenance space to accommodate the output shaft during disassembly and for subsequent maintenance. During disassembly, the drive unit moves the output shaft, allowing the interference-fitted shaft to smoothly disengage from the gearbox. The transfer unit then transports the disassembled output shaft, minimizing the space required within the gearbox's limited area. This approach is more labor-saving and cost-effective compared to manual transport.

[0011] Preferably, the transfer unit includes a track, a first connecting component, and a second connecting component. The first connecting component and the second connecting component are disposed on the track. The first connecting component is disposed in the middle region of the track along the length direction of the track, and the second connecting component is disposed at the end of the track away from the support.

[0012] In this scheme, the connection points are set at different positions on the track through the above settings. Compared with one connection point, the first connection component and the second connection component have two connection points, which further increases the reliability and stability of the track and ensures that the output shaft can bear a large load when it is transferred.

[0013] Preferably, the transfer unit further includes an adjusting member disposed on the first connecting assembly or the second connecting assembly, the adjusting member being used to adjust the angle between the track and the axial direction of the output shaft.

[0014] In this solution, the above settings enable the transfer unit to adjust accordingly based on the actual angle of the output shaft, so as to effectively transfer the output shaft.

[0015] Preferably, the transfer unit further includes a sliding unit slidably disposed on the track, the sliding unit being used to connect with the output shaft detached from the housing and to transfer the output shaft to the maintenance space.

[0016] In this solution, the output shaft is slidably connected to the track via a sliding unit to achieve transfer, replacing manual transfer.

[0017] Preferably, the sliding unit includes a vehicle body and a mounting bracket. The vehicle body includes multiple wheels and a seat. The seat is slidably connected to the track via the wheels. Each wheel has at least two bearings. The mounting bracket is connected to the seat and is used to mount the output shaft.

[0018] In this solution, the above-described configuration allows the output shaft to be attached to the vehicle body, which then slides on the track via wheels. Each wheel contains at least two bearings, which increases the load capacity compared to a single bearing, making it suitable for transporting different output shafts, especially those that are heavy.

[0019] Preferably, the transfer unit further includes a clamp assembly, which includes a first clamp and a second clamp. When the output shaft disengages from the gearbox, the first clamp and the second clamp connect and enclose to form a mounting hole, through which the output shaft passes. The first clamp has a lifting hole and is connected to the hanger through the lifting hole. The clamp assembly also includes a pull rod, one end of which is connected to the first clamp or the second clamp, and the other end of which is connected to the drive unit.

[0020] In this solution, by setting a first clamp and a second clamp, the output shaft detached from the gearbox is effectively clamped. At the same time, the first clamp is connected to the hanger through the lifting hole, thereby hanging the output shaft on the vehicle body. The additional tie rod is connected to the drive unit. Thus, when the output shaft detaches from the gearbox, the clamp assembly, output shaft, tie rod and drive unit form a whole, preventing the clamp assembly from detaching from the output shaft and enabling effective transport.

[0021] Preferably, the drive unit includes a mounting plate and a telescopic member. The mounting plate is connected to the output shaft, and the telescopic member is disposed between the mounting plate and the housing. The telescopic member is used to push the mounting plate so that the output shaft approaches or moves away from the housing.

[0022] In this solution, the mounting plate is connected to the output shaft, which overcomes the spatial limitations between the output shaft and the telescopic component, and increases the contact area between the output shaft and the telescopic component, making it easier to disassemble the output shaft.

[0023] Preferably, the drive unit further includes a pad, the pad being disposed on the mounting plate and located between the telescopic member and the mounting plate.

[0024] In this solution, the above-mentioned settings are used to buffer the contact point between the mounting plate and the telescopic component, thus preventing damage to the mounting plate.

[0025] Preferably, the transfer unit further includes a pull ring seat and an elastic element. The pull ring seat is disposed on the outer periphery of the output shaft and corresponding to the track. One end of the elastic element is connected to the pull ring seat, and the other end of the elastic element is connected to the output shaft. The elastic element is used to limit the speed and stroke of the output shaft sliding on the track.

[0026] In this solution, the above settings are used to limit the position of the output shaft on the track during transport, preventing it from derailing.

[0027] Preferably, the support includes a front support leg, a rear support leg, and a connecting beam. The front support leg is located close to the output shaft, the rear support leg is located away from the output shaft, and the connecting beam is located above the front support leg and the rear support leg. The front support leg, the rear support leg, and the connecting beam enclose the maintenance space.

[0028] In this solution, the above-mentioned arrangement creates a maintenance space between the front and rear outriggers, with the connecting beam positioned above the maintenance space to ensure that the maintenance space can accommodate the output shaft.

[0029] Preferably, the rear support leg has a triangular structure, and the front support leg is arranged parallel to the height direction of the maintenance space. The distance between the two parallel front support legs is greater than the radial dimension of the output shaft.

[0030] In this solution, the above-mentioned settings are used to ensure the reliability of the support and to avoid interference between the front outrigger and the output shaft.

[0031] The significant advantages of this invention are as follows: By incorporating a support unit, a transfer unit, and a drive unit, the output shaft can be disassembled from the gearbox for inspection and maintenance. The maintenance space provided by the support unit accommodates the output shaft during disassembly and allows for its inspection. During disassembly, the drive unit propels the output shaft, enabling the interference-fitted shaft to smoothly disengage from the gearbox. The transfer unit then transports the disassembled output shaft, thus minimizing space usage within the limited area occupied by the gearbox. Compared to manual transport, this method is more labor-saving and reduces costs. Attached Figure Description

[0032] Figure 1 This diagram shows the positional relationship between the gearbox output shaft disassembly device and the gearbox according to a preferred embodiment of the present invention.

[0033] Figure 2 This is a front view of a gearbox according to a preferred embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the gearbox output shaft disassembly device according to a preferred embodiment of the present invention.

[0035] Figure 4 This diagram shows the positional relationship between the pull ring seat and the gearbox output shaft disassembly device according to a preferred embodiment of the present invention.

[0036] Figure 5 This is a schematic diagram of the structure of a clamp assembly according to a preferred embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram showing the disassembly direction of the output shaft according to a preferred embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] Gearbox 100

[0040] Output shaft 101

[0041] Casing 102

[0042] Support section 1

[0043] Maintenance space 10

[0044] Foreleg 11

[0045] 12 rear legs

[0046] Connecting beam 13

[0047] Transfer Department 2

[0048] Orbit 21

[0049] First connecting component 22

[0050] Second connection component 23

[0051] Adjustment component 24

[0052] Sliding unit 25

[0053] Car 251

[0054] 2511 walking wheels

[0055] Seat 2512

[0056] Hook and connector 252

[0057] Clamp assembly 26

[0058] First hoop 261

[0059] Lifting hole 2611

[0060] Second clamp 262

[0061] Pull rod 263

[0062] Pull ring seat 27

[0063] Drive Unit 3

[0064] Mounting plate 31

[0065] 32 pads Detailed Implementation

[0066] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0067] This embodiment provides a gearbox output shaft disassembly device, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the gearbox output shaft disassembly device for disassembling the output shaft 101 in the gearbox 100 includes:

[0068] Support part 1, the support part 1 has maintenance space 10;

[0069] Transfer section 2 is disposed on support section 1, with one end of transfer section 2 extending away from support section 1. Transfer section 2 is used to drive output shaft 101 to transfer to maintenance space 10.

[0070] The drive unit 3 has one end disposed on the housing 102 of the gearbox 100 and the other end connected to the output shaft 101. The drive unit 3 can drive the output shaft 101 so that the output shaft 101 approaches or disengages from the housing 102 of the gearbox 100.

[0071] Specifically, the wind turbine generator set includes a gearbox 100 and a generator. The output shaft 101 of the gearbox 100 extends into and connects to the generator. The rotor of the generator forms a channel to accommodate the output shaft 101. Since the output shaft 101 faces the generator and requires maintenance after long-term use, the output shaft 101 can only be disassembled from the end of the gearbox 100 near the generator, i.e., disassembling the output shaft 101 within the limited space of the channel. This embodiment overcomes the problem of the limited space in the channel preventing the disassembly and maintenance of the output shaft 101 by providing a support part 1 to support the transfer part 2. The support part 1 has a transfer space corresponding to the channel to accommodate the output shaft 101. The transfer part 2 extends from the support part 1 towards the output shaft 101, allowing the transfer part 2 to extend into the channel and connect to the output shaft 101. The transfer part 2 then drives the output shaft 101 to the maintenance space 10, thereby overcoming the problem of the limited space in the channel preventing the disassembly and maintenance of the output shaft 101. In addition, this embodiment also includes a drive unit 3, which is used to drive the output shaft 101 to move. During disassembly, the output shaft 101, which is interference-fitted with the housing 102 of the gearbox 100, can smoothly disengage from the gearbox 100, preventing the output shaft 101 from getting stuck with the gearbox 100. At the same time, during installation, the output shaft 101 can be brought close to the gearbox 100. The support unit 1 and the transfer unit 2 support the output shaft 101. Compared with manual transfer, it is more labor-saving, does not require manual pushing, reduces costs, and facilitates installation.

[0072] like Figure 1 and Figure 3As shown, in this embodiment, the transfer unit 2 includes a track 21, a first connecting component 22 and a second connecting component 23. The first connecting component 22 and the second connecting component 23 are disposed on the track 21. The first connecting component 22 is disposed in the middle region of the track 21 along the length direction of the track 21, and the second connecting component 23 is disposed at the end of the track 21 away from the support unit 1.

[0073] Specifically, the cross-section of the track 21 is a "T" shaped structure. The horizontally extending part of the "T" shaped structure is located below the vertically extending part, so as to provide a larger contact area for the transfer output shaft 101 through the horizontally extending part, thereby improving the load capacity of the track 21.

[0074] One end of the track 21 is connected to the support part 1, and the other end extends away from the support part 1 and toward the channel of the generator. The end of the channel away from the support part 1 is the housing 102 of the gearbox 100, and the end of the channel near the support part 1 is the brake disc of the generator. The middle area of ​​the track 21 extending into the channel is provided with a first connecting component 22, and the end of the track 21 extending into the channel away from the support part 1 is provided with a second connecting component 23. The first connecting component 22 corresponds to the brake disc, and the second connecting component 23 corresponds to the housing 102. Both the first connecting component 22 and the second connecting component 23 include a connecting plate. The connecting plate has an arc-shaped groove, and multiple bolts can be inserted in the arc-shaped groove to connect with the brake disc or the housing 102 through the bolts. The first connecting assembly 22 also includes a lug plate. One end of the lug plate is bolted to the connecting plate, and the other end of the lug plate has a mounting groove for insertion into the vertically extending part of the "T"-shaped structure. This allows the rail 21 to be connected to the brake disc or housing 102 via the first connecting assembly 22 or the second connecting assembly 23, facilitating the removal of the output shaft 101 from the housing 102, i.e., the removal of the output shaft 101 from the gearbox 100. It is understood that the increased number of connection points between the rail 21 and the generator or housing 102—two connection points for the first connecting assembly 22 and the second connecting assembly 23 compared to one—further enhances the reliability and stability of the rail 21, ensuring it can withstand larger loads when transporting the output shaft 101.

[0075] In this embodiment, the transfer unit 2 further includes an adjusting member 24, which is disposed on the first connecting component 22 or the second connecting component 23. The adjusting member 24 is used to adjust the angle between the track 21 and the output shaft 101 along the axis.

[0076] Specifically, both the first connecting assembly 22 and the second connecting assembly 23 include a connecting plate. The two ends of the arc-shaped groove on the connecting plate are at different heights along the height direction of the support 1. The adjusting member 24 is a bolt that passes through the arc-shaped groove. Bolts are inserted into the arc-shaped groove at different heights along the height direction of the support 1 and are connected to the brake disc or housing 102 accordingly. The actual angle of the output shaft 101 is adjusted to correspond with the axial angle of the track 21 connected to the first connecting assembly 22 and the second connecting assembly 23, so as to effectively transport the output shaft 101 and prevent problems such as installation difficulties of the output shaft 101 that may be caused by inconsistent angles. It can be understood that top blocks can be set at different heights along the height direction of the support 1 on the brake disc. Bolts inserted into the top blocks at different heights can also achieve adjustment of the axial angle of the track 21.

[0077] In other embodiments, the adjusting member 24 may also be a telescopic rod in the prior art, so that the telescopic rod is set along the height direction of the support 1 to realize the axial angle adjustment of the track 21. This will not be elaborated further here.

[0078] Furthermore, in this embodiment, the transfer unit 2 also includes a sliding unit 25, which is slidably disposed on the track 21. The sliding unit 25 is used to connect with the output shaft 101 detached from the housing 102 and transfer the output shaft 101 to the maintenance space 10.

[0079] Specifically, the sliding unit 25 is located in the horizontally extending portion of the "T"-shaped structure. The output shaft 101, which disengages from the gearbox 100 via the drive unit 3, is connected to the sliding unit 25. The first connecting assembly 22 and the second connecting assembly 23, which connect the rail 21 to the housing 102 and the brake disc, provide support for the rail 21, the sliding unit 25, and the output shaft 101 connected to the sliding unit 25. Simultaneously, the end of the support unit 1 connected to the rail 21 also provides support, allowing the output shaft 101 to be effectively transferred from the channel to the maintenance space 10 of the support unit 1 when disengaged from the gearbox 100. By using the sliding unit 25 to replace manual traction for transfer, transfer efficiency is improved.

[0080] It is understood that in this embodiment, the track 21 and the sliding unit 25 are arranged in pairs and in parallel to make the output shaft 101 more stable when hoisting, improve the safety of hoisting, and prevent the output shaft 101 from tilting towards the side away from the track 21.

[0081] In this embodiment, the sliding unit 25 includes a vehicle body 251 and a mounting member 252. The vehicle body 251 includes multiple wheels 2511 and a seat 2512. The seat 2512 is slidably connected to the track 21 through the wheels 2511. Each wheel 2511 is provided with at least two bearings (not shown in the figure). The mounting member 252 is connected to the seat 2512 and is used to mount the output shaft 101.

[0082] Specifically, one end of the seat 2512 has a parallel pull plate, which is parallel to the vertically extending part of the "T"-shaped structure and located on both sides of the horizontally extending part of the "T"-shaped structure. The pull plate has grooves at the beginning, corresponding to the top of the horizontally extending part of the "T"-shaped structure. A rotating shaft passes through the groove, and the end of the rotating shaft facing the track 21 is rotatably connected to a traveling wheel 2511. The traveling wheel 2511 is located at the four corners of the seat 2512. A limit plate is also provided on the side of the pull plate away from the track 21. The limit plate is screwed onto the rotating shaft with a nut to limit the traveling wheel 2511 in the direction away from the track 21, preventing the traveling wheel 2511 from falling off. Each traveling wheel 2511 is provided with at least two bearings, and at least two bearings are sleeved on the rotating shaft. Compared with a single bearing, the load-bearing capacity is further increased to accommodate the transportation of different output shafts 101, especially the transportation of heavier output shafts 101.

[0083] The other end of the seat 2512 has a mounting plate with at least two through holes. A bolt passes through each through hole, and a mounting bracket 252 is connected to the mounting plate by bolts. The other end of the mounting bracket 252 is used to engage with the output shaft 101. The number of mounting brackets 252 corresponds to the number of through holes, so as to engage the output shaft 101 with the vehicle body 251. The vehicle body 251 slides on the track 21 via the wheels 2511. In addition, compared with one mounting bracket 252, two mounting brackets 252 can lift the output shaft 101 from different positions, and the lifting load is correspondingly increased.

[0084] It should be noted that in this embodiment, the two ends of the hanger 252 are screws, and there is a hanger rod between the two ends of the hanger 252. The two ends of the hanger rod are provided with threaded holes corresponding to the two screws, so as to adjust the extension length of the hanger 252 along the height direction of the support part 1 by rotating the screws. That is, the hoisting height can be adjusted accordingly when hoisting the output shaft 101, so as to avoid interference with other structures when the output shaft 101 is hoisted.

[0085] like Figure 5As shown, in this embodiment, the transfer unit 2 further includes a clamp assembly 26, which includes a first clamp 261 and a second clamp 262. When the output shaft 101 disengages from the gearbox 100, the first clamp 261 and the second clamp 262 connect and enclose to form a mounting hole, through which the output shaft 101 passes. The first clamp 261 has a lifting hole 2611, which is connected to the hanger 252. The clamp assembly 26 also includes a pull rod 263, one end of which is connected to the first clamp 261 or the second clamp 262, and the other end of which is connected to the drive unit 3.

[0086] Specifically, both the first clamp 261 and the second clamp 262 are C-shaped structures, with their openings facing each other and their ends connected sequentially by bolts to form a ring structure. A mounting hole is formed in the middle area after the two clamps are connected. After the output shaft 101 detaches from the gearbox 100, it passes through the mounting hole and is hooked onto the hanger 252 through the lifting hole 2611 on the first clamp 261, effectively securing the output shaft 101 detached from the gearbox 100. Simultaneously, the first clamp 261 connects to the hanger 252 through the lifting hole 2611, thereby hooking the output shaft 101 onto the vehicle body 251. It is understood that the number of clamp assemblies 261 corresponds to the number of hangers 252 to further improve the stability and reliability of the hoisted output shaft 101.

[0087] In this embodiment, the pull rod 263 is arranged along the axial direction of the output shaft 101. One end of the pull rod 263 is bolted to the first clamp 261, and the other end is bolted to the drive unit 3, so as to form the clamp assembly 26 and the drive unit 3 as a whole, preventing the clamp assembly 26 from disengaging from the output shaft 101 and enabling effective rotation. Of course, one end of the pull rod 263 can also be connected to the second clamp 262, and the other end can be connected to the drive unit 3, which can achieve the same purpose, and will not be elaborated further here.

[0088] In this embodiment, the drive unit 3 includes a mounting plate 31 and a telescopic member (not shown in the figure). The mounting plate 31 is connected to the output shaft 101, and the telescopic member is disposed between the mounting plate 31 and the housing 102. The telescopic member is used to push the mounting plate 31 so that the output shaft 101 approaches or moves away from the housing 102.

[0089] Specifically, the mounting plate 31 is sleeved on the output shaft 101 and correspondingly arranged with the housing 102. A telescopic component is also provided at the end of the housing 102 facing the mounting plate 31. This telescopic component can be a hydraulic jack, hydraulic cylinder, pneumatic cylinder, or other structure with telescopic function, as described in the prior art, and will not be elaborated upon here. One end of the telescopic component is connected to the housing 102, and the other end abuts against the mounting plate 31. The telescopic component can push the mounting plate 31 connected to the output shaft 101, thereby causing the output shaft 101 to disengage from or approach the gearbox 100. It is understood that the telescopic component is arranged parallel to the axial direction of the output shaft 101. Compared to a vertical arrangement, this overcomes the limitation of the limited space where the output shaft 101 is located. Furthermore, the connection between the telescopic component and the output shaft 101 via the mounting plate 31, with one end abutting against the mounting plate 31, increases the contact area between the output shaft 101 and the telescopic component, facilitating the disassembly of the output shaft 101.

[0090] Furthermore, in this embodiment, the drive unit 3 also includes a pad 32, which is disposed on the mounting plate 31 and is located between the telescopic member and the mounting plate 31.

[0091] Specifically, the pad 32 is a circular ring structure and is sleeved on the output shaft 101. The pad 32 is located between the mounting plate 31 and the telescopic member. When the telescopic member pushes the mounting plate 31 to move, the end of the telescopic member first abuts against the pad 32, thereby pushing the mounting plate 31. The pad 32 can be made of hard material or soft material. The hard material can be metal and the soft material can be rubber, so as to buffer the contact position between the mounting plate 31 and the telescopic member and avoid damage to the mounting plate 31.

[0092] like Figure 4 As shown, in this embodiment, the transfer unit 2 further includes a pull ring seat 27 and an elastic element (not shown in the figure). The pull ring seat 27 is disposed on the outer periphery of the output shaft 101 and is disposed corresponding to the track 21. One end of the elastic element is connected to the pull ring seat 27, and the other end of the elastic element is connected to the output shaft 101. The elastic element is used to limit the speed and stroke of the output shaft 101 sliding on the track 21.

[0093] Specifically, the pull ring seat 27 can be set on the brake disc, and the connection points of the pull ring seat 27 and the first connecting component 22 and the brake disc are staggered. There can be two pull ring seats 27. The elastic element is a nylon rope in the prior art. The nylon rope is threaded on the pull ring seat 27, and one end of the nylon rope is connected to the output shaft 101 of the gearbox 100. The other end is held manually or connected to the support part 1 to limit the position of the output shaft 101 on the track 21 during transportation and prevent it from leaving the track 21.

[0094] In this embodiment, the support part 1 includes a front support leg 11, a rear support leg 12 and a connecting beam 13. The front support leg 11 is located close to the output shaft 101, the rear support leg 12 is located away from the output shaft 101, and the connecting beam 13 is located above the front support leg 11 and the rear support leg 12. The front support leg 11, the rear support leg 12 and the connecting beam 13 enclose and form an inspection space 10.

[0095] Specifically, the front support leg 11 and the rear support leg 12 are rods, and a connecting beam 13 is provided between the front support leg 11 and the rear support leg 12. The connecting beam 13 is located above the front support leg 11 and the rear support leg 12, and the lower part of the front support leg 11 and the rear support leg 12 is connected to the frame of the wind turbine generator set, thus forming the support part 1 as a whole, and effectively bearing the load of the transfer part 2 and the transfer output shaft 101. By providing the connecting beam 13 above the front support leg 11 and the rear support leg 12, compared with the method of providing the connecting beam 13 at the same level between the two, the vertical dimension of the resulting maintenance space 10 is larger, making the maintenance space 10 larger and able to accommodate and maintain the output shaft 101.

[0096] In this embodiment, the rear support leg 12 has a triangular structure, and the front support leg 11 is arranged parallel to the height direction of the maintenance space 10. The distance between the two parallel front support legs 11 is greater than the radial dimension of the output shaft 101.

[0097] Specifically, the front support leg 11 consists of two parallel rods and a crossbeam above them. The crossbeam connects the two parallel rods to form a whole, and a connecting beam 13 is located above the crossbeam to connect with it. The rear support leg 12 consists of two inclined rods with their ends intersecting to form a triangular structure. The connecting beam 13 is also located above this triangular structure. By arranging the rear support leg 12 in a triangular structure, the load-bearing capacity of the support 1 is improved. The parallel arrangement of the front support legs 11 avoids interference with the output shaft 101, and the space between the two front support legs 11 serves as the entrance for the output shaft 101 to enter and exit the maintenance space 10. It is understood that one end of the track 21 of the transfer unit 2 is connected to the front support leg 11, and the other end extends from the front support leg 11 into the channel, preventing the triangular structure of the rear support leg 12 from obstructing the output shaft 101's entry and exit from the maintenance space 10.

[0098] The working principle of the gearbox output shaft disassembly device in this embodiment is as follows:

[0099] The support unit 1, transfer unit 2, and drive unit 3 are installed inside the wind turbine generator set at the airport and are connected to the brake disc or housing 102. After installation, the pad block 32 and hydraulic jack are installed. The hydraulic jack is started, and the output shaft 101 is pulled out partially. The clamp assembly 26 is then installed and hooked onto the connector 252. The hydraulic jack is continued until the output shaft 101 is completely pulled out of the gearbox 100. The output shaft 101 is slid to the connection between the track 21 and the front outrigger 11 using the sliding unit 25. The clamp assembly 26 is tightened using a hand chain hoist, and the connector 252 is removed. The output shaft 101 is then transferred to the maintenance space 10. In the maintenance space 10, the output shaft 101 is further disassembled and removed for repair or replacement.

[0100] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gearbox output shaft disassembly device, used for disassembling the output shaft in a gearbox, characterized in that, The gearbox output shaft disassembly device includes: The support section has a maintenance space; A transfer unit is disposed on the support unit, one end of which extends away from the support unit, and the transfer unit is used to drive the output shaft to the maintenance space. The drive unit has one end disposed on the housing of the gearbox and the other end connected to the output shaft. The drive unit is capable of driving the output shaft to bring the output shaft closer to or away from the housing of the gearbox.

2. The gearbox output shaft disassembly device as described in claim 1, characterized in that, The transfer unit includes a track, a first connecting component, and a second connecting component. The first connecting component and the second connecting component are disposed on the track. The first connecting component is disposed in the middle region of the track along the length direction of the track, and the second connecting component is disposed at the end of the track away from the support.

3. The gearbox output shaft disassembly device as described in claim 2, characterized in that, The transfer unit further includes an adjusting member, which is disposed on the first connecting component or the second connecting component, and is used to adjust the angle between the track and the output shaft along the axis.

4. The gearbox output shaft disassembly device as described in claim 2, characterized in that, The transfer unit further includes a sliding unit that is slidably disposed on the track. The sliding unit is used to connect with the output shaft that is detached from the housing and to transfer the output shaft to the maintenance space.

5. The gearbox output shaft disassembly device as described in claim 4, characterized in that, The sliding unit includes a vehicle body and a mounting bracket. The vehicle body includes multiple wheels and a seat. The seat is slidably connected to the track via the wheels. Each wheel has at least two bearings. The mounting bracket is connected to the seat and is used to attach the output shaft.

6. The gearbox output shaft disassembly device as described in claim 5, characterized in that, The transfer unit also includes a clamp assembly, which includes a first clamp and a second clamp. When the output shaft disengages from the gearbox, the first clamp and the second clamp connect and enclose to form a mounting hole, through which the output shaft passes. The first clamp has a lifting hole and is connected to the hanger through the lifting hole. The clamp assembly also includes a pull rod, one end of which is connected to the first clamp or the second clamp, and the other end of which is connected to the drive unit.

7. The gearbox output shaft disassembly device as described in claim 1, characterized in that, The drive unit includes a mounting plate and a telescopic member. The mounting plate is connected to the output shaft, and the telescopic member is disposed between the mounting plate and the housing. The telescopic member is used to push the mounting plate so that the output shaft approaches or moves away from the housing.

8. The gearbox output shaft disassembly device as described in claim 7, characterized in that, The drive unit also includes a pad, which is disposed on the mounting plate and located between the telescopic member and the mounting plate.

9. The gearbox output shaft disassembly device as described in claim 2, characterized in that, The transfer unit also includes a pull ring seat and an elastic element. The pull ring seat is disposed on the outer periphery of the output shaft and corresponds to the track. One end of the elastic element is connected to the pull ring seat, and the other end of the elastic element is connected to the output shaft. The elastic element is used to limit the speed and stroke of the output shaft sliding on the track.

10. The gearbox output shaft disassembly device as described in claim 1, characterized in that, The support includes a front support leg, a rear support leg, and a connecting beam. The front support leg is located close to the output shaft, and the rear support leg is located away from the output shaft. The connecting beam is located above the front support leg and the rear support leg. The front support leg, the rear support leg, and the connecting beam enclose the maintenance space.

11. The gearbox output shaft disassembly device as described in claim 10, characterized in that, The rear support leg has a triangular structure, and the front support leg is arranged parallel to the height direction of the maintenance space. The distance between the two parallel front support legs is greater than the radial dimension of the output shaft.

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