Shaft pressing tool

Abstract

The utility model discloses a shaft pressing tool which is applied to a main shaft of a wind turbine unit, the main shaft is installed on a machine frame of the wind turbine unit through a bearing seat, and the shaft pressing tool comprises a support and a shaft pressing assembly. The support is used for being fixed to a rack. The pressing shaft assembly is arranged on the support and used for pressing and fixing the first part of the main shaft. The first part of the main shaft is located between the input end of the main shaft and the bearing seat. When the gear box is damaged and needs to be dismantled and maintained in a tower, the input end of the main shaft is in a suspended state, the suspended section of the main shaft can be pressed and fixed through the pressing shaft assembly at the moment, the position of the suspended section of the main shaft is fixed, the main shaft is prevented from overturning, and therefore the risk that a wind wheel falls off is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine sets, in particular to a shaft pressing tool. Background Art

[0002] In existing wind turbine units, the main shaft of the wind turbine unit is installed on the frame through a bearing seat, and its two ends are respectively assembled with the gearbox and the wind wheel locking plate; when the gearbox is damaged, it needs to be lowered from the tower for maintenance. After the gearbox is removed from the tower, one end of the main shaft is in a suspended state, and there is a possibility of overturning due to the gravity of the wind wheel, which may cause the wind wheel to fall. Utility Model Content

[0003] In view of this, the utility model provides a shaft pressing tool that can be used to press and fix the suspended section of the main shaft, so that the position of the suspended section of the main shaft is fixed, avoiding the main shaft from overturning, and thus preventing the risk of the wind wheel falling.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A shaft pressing tool is applied to the main shaft of a wind turbine group, wherein the main shaft is installed on the frame of the wind turbine group through a bearing seat, comprising: a bracket and a shaft pressing assembly;

[0006] The bracket is used to be fixed to the frame;

[0007] The pressing shaft assembly is arranged on the bracket and is used to press and fix the first part of the main shaft; wherein the first part of the main shaft is located between the input end of the main shaft and the bearing seat.

[0008] Preferably, the bracket is used to span over the first portion of the main shaft;

[0009] The pressing shaft assembly is arranged at the bottom of the cross portion of the bracket and is used to press and hold the first part of the main shaft.

[0010] Preferably, the support comprises: a crossbeam and two legs;

[0011] The lower ends of the two legs are used to be fixed on the frame, and the upper ends are fixed to the two ends of the crossbeam one by one, and the crossbeam is used to span above the first part of the main shaft;

[0012] The pressing shaft assembly is arranged at the bottom of the middle part of the beam.

[0013] Preferably, the bracket further comprises two connecting plates;

[0014] Among the two legs, the lower end of one leg is used to pass through the first frame hole of the frame and be fixed to the yaw bearing connecting flange of the frame through the connecting plate, and the lower end of the other leg is used to pass through the second frame hole of the frame and be fixed to the yaw bearing connecting flange of the frame through the other connecting plate.

[0015] Preferably, the pressure shaft assembly includes: an upper pressure block, two side pressure block assemblies and a locking assembly;

[0016] The upper pressing block is arranged at the bottom of the middle portion of the beam and is used to press the first portion of the main shaft;

[0017] The first ends of the two side pressure block assemblies are rotatably disposed at the bottom of the middle portion of the beam, and are located on both sides of the upper pressure block and are used to hold the first portion of the main shaft;

[0018] The locking assembly is used to lock the two side pressure block assemblies when the two side pressure block assemblies embrace the first part of the main shaft, so that the two side pressure block assemblies embrace the first part of the main shaft.

[0019] Preferably, an upper pressing block mounting groove is provided at the bottom of the middle portion of the crossbeam;

[0020] The upper pressing block is installed in the upper pressing block installation groove.

[0021] Preferably, the two side pressure block assemblies each include: a side pressure block and a side pressure block mounting frame;

[0022] The first ends of the two side pressure block mounting brackets are rotatably disposed at the bottom of the middle portion of the beam and are located on both sides of the upper pressure block;

[0023] The two side pressure blocks are respectively arranged on the side pressure block mounting frame and are used to hold the first portion of the main shaft;

[0024] The locking assembly is used to lock the second ends of the two side pressure block mounting brackets when the two side pressure blocks embrace the first part of the main shaft, so that the two side pressure blocks embrace the first part of the main shaft.

[0025] Preferably, the upper pressing block has a lower arc surface for abutting and cooperating with the upper arc surface of the first part of the main shaft;

[0026] Among the two side pressure blocks, one side pressure block has a left arcuate surface for abutting and matching with the right arcuate surface of the first part of the main shaft, and the other side pressure block has a right arcuate surface for abutting and matching with the left arcuate surface of the first part of the main shaft.

[0027] Preferably, the locking assembly comprises a bolt assembly.

[0028] Preferably, the pressing shaft assembly further comprises two mounting seats;

[0029] The two mounting seats are respectively arranged at the bottom of the middle part of the beam and located on both sides of the upper pressing block;

[0030] The first ends of the two side pressure block mounting brackets are rotatably connected to the two mounting seats one by one through pins.

[0031] It can be seen from the above technical solution that the press-down tooling provided by the present invention, when the gearbox is damaged and needs to be dismantled for maintenance, the input end of the main shaft is in a suspended state. At this time, the press-down assembly can be used to press and fix the suspended section of the main shaft, so that the position of the suspended section of the main shaft is fixed, avoiding the main shaft from overturning, thereby preventing the risk of the wind wheel falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the installation of the pressing tool provided in an embodiment of the present utility model on a frame;

[0034] Figure 2 Another schematic diagram of the installation of the pressing tool provided in an embodiment of the present utility model on the frame;

[0035] Figure 3 A schematic diagram of the first part of the shaft clamping tool provided in an embodiment of the present utility model for clamping the main shaft;

[0036] Figure 4 A schematic structural diagram of a shaft pressing tool provided in an embodiment of the present utility model;

[0037] Figure 5 A front view of the structure of the pressing tool provided in an embodiment of the utility model;

[0038] Figure 6 A schematic structural diagram of two legs of a pressing fixture provided in an embodiment of the present utility model;

[0039] Figure 7 A schematic diagram of the installation of the mounting base and the upper pressing block on the beam provided in an embodiment of the present utility model;

[0040] Figure 8A schematic diagram of the installation of the second pad provided in an embodiment of the present invention between the crossbeam and the second leg;

[0041] Figure 9 A schematic diagram of the installation of the mounting base and the side pressure block mounting bracket provided in an embodiment of the present utility model;

[0042] Figure 10 A schematic structural diagram of a side pressure block provided in an embodiment of the present utility model;

[0043] Figure 11 Another structural schematic diagram of the side pressure block provided in an embodiment of the utility model.

[0044] Among them, 10 is a bracket, 11 is a leg, 12 is a beam, 13 is a pad, 14 is a connecting plate, 15 is a hook, and 16 is an upper pressure block installation slot;

[0045] 20 is a pressure shaft assembly, 21 is an upper pressure block, 22 is a side pressure block, 23 is a side pressure block mounting bracket, 24 is a mounting seat, 25 is a pin, 26 is a lower arc surface, 27 is a left arc surface, and 28 is a right arc surface;

[0046] 30 is the frame, 31 is the yaw bearing connection flange, 32 is the first frame hole, and 33 is the second frame hole;

[0047] 40 is the main axis;

[0048] 50 is a bearing seat;

[0049] 60 is the wind wheel locking disc. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] The pressing tool provided in the embodiment of the present invention is applied to the main shaft 40 of the wind turbine group, wherein, Figure 1 As shown, the main shaft 40 is installed on the frame 30 of the wind turbine assembly through the bearing seat 50, and the pressing tooling includes: a bracket 10 and a pressing assembly 20;

[0052] The bracket 10 is used to be fixed to the frame 30;

[0053] The pressing assembly 20 is disposed on the bracket 10 and is used to press and fix the first portion of the main shaft 40 ; wherein the first portion of the main shaft 40 is located between the input end of the main shaft 40 and the bearing seat 50 .

[0054] It should be noted that if Figure 1 As shown, the middle part of the main shaft 40 of the wind turbine assembly is mounted on the frame 30 through the bearing seat 50, and its first end (input end) is used for transmission connection with the output end of the gear box (reduction box), and the second end (output end) is used for assembling the wind rotor locking disk 60;

[0055] The bracket 10 can be fixed to the frame 30 by a bolt assembly; the pressing assembly 20 can also be fixed to the bracket 10 by a bolt assembly, and is used to press and fix the first part of the main shaft 40; wherein, Figure 1 As shown, the first part of the main shaft 40 can be the suspended section of the main shaft 40 after the gear box is removed. The suspended section of the main shaft 40 is pressed and fixed (can be clamped and fixed) by the pressing assembly 20 to form a constraint on the suspended section of the main shaft 40, so that the position of the suspended section of the main shaft 40 is fixed, and the main shaft 40 is prevented from overturning, thereby preventing the risk of the wind wheel falling; of course, this pressing tool can be assembled on the frame 30, and then used to form a pressing and fixing effect on the first part of the main shaft 40.

[0056] That is, when the gearbox is damaged and needs to be removed from the lower tower for maintenance, the input end of the main shaft 40 is in a suspended state. At this time, the pressing assembly 20 of the pressing fixture can be used to press and fix the suspended section of the main shaft 40, so that the position of the suspended section of the main shaft 40 is fixed, preventing the main shaft 40 from overturning and thus preventing the risk of the wind rotor falling. In other words, the pressing fixture installed on the frame 30 constrains the first part of the main shaft 40, ensuring that the position of the main shaft 40 is fixed when the gearbox is removed from the lower tower, avoiding the risk of the wind rotor falling; of course, this pressing fixture can be installed first and then the gearbox is removed.

[0057] In this program, if Figure 1 As shown, the bracket 10 can be fixed to the frame 30 and is used to span over the first portion of the main shaft 40;

[0058] The pressure-holding assembly 20 is disposed at the bottom of the cross-section of the bracket 10 and is used to press down and hold the first portion of the spindle 40. In other words, the bracket 10 is a cross-section bracket and is used to span over the first portion of the spindle 40. This allows the pressure-holding assembly 20 disposed at the bottom of the cross-section of the bracket 10 to press down and secure the first portion of the spindle 40. In addition, to effectively support the cross-section of the bracket 10, the bracket 10 also has at least two legs, as described below. Of course, the bracket 10 can also be disposed on one side of the first portion of the spindle 40, and the pressure-holding assembly 20 can be used to create a suspended pressure-holding effect on the first portion of the spindle 40.

[0059] Specifically, if Figure 4As shown, the bracket 10 includes: a crossbeam 12 and two legs 11;

[0060] The lower ends of the two legs 11 are used to be fixed on the frame 30, and the upper ends are fixed to the two ends of the beam 12 one by one. Figure 3 As shown, the crossbeam 12 is used to span above the first portion of the main shaft 40; wherein the crossbeam 12 is the cross-part of the bracket 10 mentioned above, and the support leg 11 is the support leg portion of the bracket 10 mentioned above;

[0061] like Figure 4 As shown, the pressing shaft assembly 20 is disposed at the bottom of the middle portion of the beam 12 .

[0062] It should be noted that the lower ends of the two legs 11 can be fixed to the upper end surface of the frame 30 by a bolt assembly, and the upper end surface is located on one side of the bearing seat 50, as shown in FIG. Figure 4 As shown, the upper ends of the two legs 11 can be fixed one by one to the bottom of the two ends of the beam 12 by means of bolt assemblies, or the upper ends of the two legs 11 can be fixed one by one to the end portions of the two ends of the beam 12 by means of bolt assemblies, which can form the bracket 10 into a bipod spanning the top of the first part of the main shaft 40, thereby enabling the pressing assembly 20 to have a stable pressing effect; of course, the bracket 10 can also adopt other structural forms, such as a tripod, which will not be described here; in addition, the pressing assembly 20 is arranged in the center of the bottom of the beam 12, so that when the pressing assembly 20 presses and fixes the first part of the main shaft 40, it can ensure that the pressing tooling is subjected to balanced force; wherein, as Figure 4 As shown, one of the two legs 11 can be used as a right leg, and the other can be used as a left leg. The upper ends of the right leg and the left leg are fixed to the left and right ends of the crossbeam 12 respectively.

[0063] Furthermore, if Figure 4 As shown, the bracket 10 further includes two connecting plates 14;

[0064] like Figure 1 and Figure 2 As shown, among the two legs 11, the lower end of one leg 11 is used to pass through the first frame hole 32 of the frame 30 and is fixed to the yaw bearing connection flange 31 of the frame 30 through the connecting plate 14, and the lower end of the other leg 11 is used to pass through the second frame hole 33 of the frame 30 (as shown in FIG. Figure 1 As shown) and is fixed to the yaw bearing connecting flange 31 of the frame 30 through another connecting plate 14.

[0065] It should be noted that if Figure 1 and Figure 2As shown, among the two legs 11, the lower end of the first leg (for example, the right leg) passes through the first frame hole 32 of the frame 30 and is fixed to the bottom surface of the first part of the yaw bearing connection flange 31 of the frame 30 through the first connecting plate (for example, the right connecting plate), and the lower end of the second leg (for example, the left leg) passes through the second frame hole 33 of the frame 30 and is fixed to the bottom surface of the second part of the yaw bearing connection flange 31 of the frame 30 through the second connecting plate (for example, the left connecting plate); wherein, as Figure 2 As shown, the first part and the second part of the yaw bearing connecting flange 31 are symmetrically distributed about the center of the yaw bearing connecting flange 31, and the first connecting plate and the second connecting plate (i.e., the two connecting plates 14 mentioned above) are also symmetrically distributed about the center of the yaw bearing connecting flange 31, as shown in FIG. Figure 2 and Figure 3 As shown, the first part of the first connecting plate is fixed to the lower end of the first leg by a bolt assembly, and the second part is fixed to the bottom surface of the first part of the yaw bearing connecting flange 31 by a bolt assembly. The first part of the second connecting plate is fixed to the lower end of the second leg by a bolt assembly, and the second part is fixed to the bottom surface of the second part of the yaw bearing connecting flange 31 by a bolt assembly.

[0066] That is to say, the lower ends of the two legs 11 pass through the frame 30 and are fixed to the yaw bearing connecting flange 31 of the frame 30 through the corresponding connecting plates. This makes the fixation of the lower ends of the two legs 11 to the frame 30 more stable and reliable, thereby making the installation of the bracket 10 on the frame 30 more stable and reliable.

[0067] Furthermore, if Figure 3 and Figure 4 As shown, the pressing shaft assembly includes: an upper pressing block 21, two side pressing block assemblies and a locking assembly;

[0068] The upper pressing block 21 is provided at the bottom of the middle portion of the crossbeam 13 and is used to press the first portion of the main shaft 40;

[0069] The first ends of the two side pressure block assemblies are rotatably disposed at the bottom of the middle portion of the crossbeam 13 and are located on both sides of the upper pressure block 21 and are used to hold the first portion of the main shaft 40;

[0070] The locking assembly is used to lock the two side pressure block assemblies when the two side pressure block assemblies embrace the first portion of the main shaft 40 , so that the two side pressure block assemblies embrace the first portion of the main shaft 40 .

[0071] It should be noted that, since the upper pressing block 21 is arranged at the bottom of the middle part of the beam 13, in order to facilitate the upper pressing block 21 to press the first part of the main shaft 40, the upper pressing block 21 can be first fixed to the bottom of the middle part of the beam 13 by a bolt assembly, and then the two ends of the beam 13 are fixed to the upper ends of the two legs 11 one by one. In this way, when the beam 12 is installed, the upper pressing block 21 presses the upper arc surface of the first part of the main shaft 40; of course, if Figure 5 As shown, a pad 13 of different thicknesses may be provided between the upper end of each leg 11 and the crossbeam 12 to adjust the installation height of the crossbeam 12 and ensure that the upper pressing block 21 can press the upper curved surface of the first portion of the main shaft 40 after the crossbeam 12 is installed;

[0072] The first ends of the two side pressure block assemblies are rotatably connected to the bottom of the middle part of the crossbeam 13, and are located on both sides of the upper pressure block 21 and symmetrically distributed about the upper pressure block 21, so that the two side pressure block assemblies can be flipped and matched, that is, used to hold (encircle) the first part of the main shaft 40, and then the two side pressure block assemblies are locked by the locking assembly, so that the two side pressure block assemblies hold the first part of the main shaft 40; of course, the upper pressure block 21 also participates in holding the first part of the main shaft 40, thereby achieving the effect of pressing and holding the first part of the main shaft 40; of course, the two side pressure block assemblies are also equivalent to openable and closable clamping pressure block assemblies; among them, one of the two side pressure block assemblies can be used as a right pressure block assembly, and the other can be used as a left pressure block assembly, which can also hold the left and right side arc surfaces of the first part of the main shaft 40, and the upper pressure block is used to press the upper arc surface of the first part of the main shaft 40.

[0073] In this program, if Figure 7 As shown, an upper pressing block mounting groove 16 is provided at the bottom of the middle portion of the crossbeam 13;

[0074] The upper pressing block 21 is installed in the upper pressing block installation groove 16, so that the upper pressing block 21 is embedded in the bottom of the middle part of the beam 13, avoiding the upper pressing block 21 protruding from the bottom surface of the middle part of the beam 13, so that the upper pressing block 21 can better press the upper curved surface of the first part of the main shaft 40. Figure 7 As shown, the upper pressing block 21 can be fixed in the upper pressing block installation groove 16 by a countersunk bolt assembly to prevent the connection assembly between the upper pressing block 21 and the upper pressing block installation groove 16 from protruding from the pressing surface of the upper pressing block 21.

[0075] Specifically, if Figure 4 As shown, both side pressure block assemblies include: a side pressure block 22 and a side pressure block mounting frame 23;

[0076] The first ends of the two side pressure block mounting brackets 23 are rotatably disposed at the bottom of the middle portion of the beam 13 and are located on both sides of the upper pressure block 21;

[0077] The two side pressure blocks 22 are respectively mounted on the side pressure block mounting frame 23 and are used to hold the first portion of the main shaft 40;

[0078] The locking assembly is used to lock the second ends of the two side pressure block mounting brackets 23 when the two side pressure blocks 22 embrace the first portion of the main shaft 40 , so that the two side pressure blocks 22 embrace the first portion of the main shaft 40 .

[0079] It should be noted that the structures of the side pressure block 22 and the side pressure block mounting frame 23 can be referred to Figure 10 and Figure 11 As shown; the first ends (such as the upper ends) of the two side pressure block mounting brackets 23 are rotatably connected to the bottom of the middle part of the crossbeam 13 respectively, and are located on both sides of the upper pressure block mounting groove 16, and are symmetrically distributed about the upper pressure block mounting groove 16, so that the two side pressure block mounting brackets 23 can be flipped and matched, thereby enabling the two side pressure blocks 22 to hold the outer arc surfaces on both sides of the first part of the main shaft 40. At this time, the second ends (such as the lower ends) of the two side pressure block mounting brackets 23 are locked by the locking assembly, and the two side pressure block mounting brackets 23 are aligned. The two side pressure blocks 22 are locked together, so that the two side pressure blocks 22 hold the outer arc surfaces on both sides of the first part of the main shaft 40 tightly; wherein, after the side pressure blocks 22 are installed on the side pressure block mounting frame 23, they can be fastened by countersunk bolt assemblies to prevent the connecting assembly between the side pressure blocks 22 and the side pressure block mounting frame 23 from protruding from the crimping surface of the side pressure blocks 22; of course, as mentioned above, one of the two side pressure block mounting frames 23 can be used as the right pressure block mounting frame, and the other can be used as the left pressure block mounting frame. Accordingly, one of the two side pressure blocks 22 can be used as the right pressure block, and the other can be used as the left pressure block.

[0080] Furthermore, if Figure 7 As shown, the upper pressing block 21 has a lower arc surface 26 for abutting and cooperating with the upper arc surface of the first portion of the main shaft 40;

[0081] like Figure 4 As shown, among the two side pressure blocks 22, one side pressure block 22 has a left arcuate surface 27 for abutting with the right arcuate surface of the first part of the main shaft 40, and the other side pressure block 22 has a right arcuate surface 28 for abutting with the left arcuate surface of the first part of the main shaft 40.

[0082] It should be noted that the shape of the lower arc surface 26 of the upper pressing block 21 is adapted to the shape of the upper arc surface of the first portion of the main shaft 40, so that the lower arc surface 26 of the upper pressing block 21 can adapt to press the upper arc surface of the first portion of the main shaft 40; Figure 4As shown, in the two side pressure blocks 22, the right pressure block has a left arc surface 27, and the left pressure block has a right arc surface 28, and the shape of the left arc surface of the right pressure block is used to adapt to the shape of the right arc surface of the first part of the main shaft 40, so that the left arc surface of the right pressure block can adapt to and press the right arc surface of the first part of the main shaft 40, and the shape of the right arc surface 28 of the left pressure block is used to adapt to the shape of the left arc surface of the first part of the main shaft 40, so that the right arc surface 28 of the left pressure block can adapt to and press the left arc surface of the first part of the main shaft 40. In this way, the upper pressure block 21 can press the upper arc surface of the first part of the main shaft 40 more tightly, and the two side pressure blocks 22 can hold the two side arc surfaces of the first part of the main shaft 40 more tightly, thereby forming a tight pressing effect on the first part of the main shaft 40.

[0083] Furthermore, the locking assembly includes a bolt assembly. The structure of the second end (lower end) of each side pressure block mounting bracket 23 can be referred to Figure 11 As shown, when the two side pressure block mounting frames 23 are flipped and aligned, the bolt assembly can be used to facilitate locking the second ends of the two side pressure block mounting frames 23, and can also make the alignment and locking of the two side pressure block mounting frames 23 tighter; of course, this solution can also use other locking assemblies, such as snap-on assemblies.

[0084] In this program, if Figure 7 As shown, the press shaft assembly also includes two mounting seats 24;

[0085] Two mounting seats 24 are respectively provided at the bottom of the middle portion of the crossbeam 13 and located on both sides of the upper pressing block 21;

[0086] like Figure 4 As shown, the first ends of the two side pressure block mounting brackets 23 are rotatably connected to the two mounting seats 24 one by one through the pin shaft 25, so that the rotatable connection between the first end of each side pressure block mounting bracket 23 and the bottom of the middle part of the beam 13 can be more stable. Figure 7 As shown, each mounting seat 24 can be fixed to the bottom of the middle part of the beam 13 by a countersunk bolt assembly, and the matching relationship between the mounting seat 24, the first end of the side pressure block mounting bracket 23 and the pin 25 can be referred to Figure 4 wherein, one of the two mounting seats 24 can be used as a left mounting seat, and the other can be used as a right mounting seat.

[0087] That is to say, this pressure-pressing tooling is mainly composed of a right support leg, a left support leg, an upper crossbeam (i.e., crossbeam 12), an upper pressure block, a side pressure block, a pad, a side pressure block mounting frame, a left connecting plate, a right connecting plate, a mounting block (i.e., a mounting seat 24), a pin shaft, and other auxiliary materials such as screws, washers, and nuts.

[0088] In addition, it is also necessary to explain the preparations before the installation of this final tooling: unplug the main cable of the nacelle and place it on the tower top platform, remove the six yaw brakes, main and auxiliary cable trays, low-speed shaft ladder and other components that interfere with the installation of the tooling, and the installation process of this final tooling on the frame is as follows:

[0089] 1. If Figure 2 As shown, assemble the yaw bearing connecting flange of the frame with the left and right connecting plates of the fixture and fasten them with bolts and nuts;

[0090] 2. If Figure 6 As shown, assemble the left leg and the right leg to the connecting plate respectively and fasten them with bolts and nuts;

[0091] 3. If Figure 7 As shown, assemble the upper crossbeam, upper pressing block and mounting block, and fasten them with bolts and other auxiliary materials;

[0092] 4. If Figure 8 As shown, assemble the upper crossbeam with the left and right legs, and place a pad between the crossbeam and the legs;

[0093] 5. If Figure 10 As shown, assemble the left and right side pressure block mounting frames and the left and right side pressure blocks one by one, and fasten them with bolts and other auxiliary materials;

[0094] 6. If Figure 9 As shown, assemble the left and right side pressure block mounting brackets and the left and right mounting seats of the upper crossbeam one by one, and connect them through pins;

[0095] 7. After the tooling is installed, the left and right side pressure block brackets are fastened with bolts to fix the main shaft.

[0096] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0097] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressing tool, applied to the main shaft (40) of a wind turbine group, wherein: The main shaft (40) is mounted on the frame (30) of the wind turbine assembly via a bearing seat (50), and is characterized in that it comprises: a bracket (10) and a pressure shaft assembly (20); The bracket (10) is used to be fixed to the frame (30); The pressing shaft assembly (20) is arranged on the bracket (10) and is used to press and fix the first part of the main shaft (40); wherein the first part of the main shaft (40) is located between the input end of the main shaft (40) and the bearing seat (50).

2. The pressing tool according to claim 1, characterized in that: The bracket (10) is used to span over the first portion of the main shaft (40); The pressing shaft assembly (20) is arranged at the bottom of the cross portion of the bracket (10) and is used to press and hold the first part of the main shaft (40).

3. The pressing tool according to claim 2, characterized in that: The bracket (10) comprises: a crossbeam (12) and two supporting legs (11); The lower ends of the two legs (11) are used to be fixed on the frame (30), and the upper ends are fixed to the two ends of the crossbeam (12) one by one, and the crossbeam (12) is used to span above the first part of the main shaft (40); The pressing shaft assembly (20) is arranged at the bottom of the middle part of the crossbeam (12).

4. The pressing fixture according to claim 3, characterized in that: The bracket (10) further includes two connecting plates (14); Among the two supporting legs (11), the lower end of one supporting leg (11) is used to pass through the first frame hole (32) of the frame (30) and be fixed to the yaw bearing connecting flange (31) of the frame (30) through the connecting plate (14), and the lower end of the other supporting leg (11) is used to pass through the second frame hole (33) of the frame (30) and be fixed to the yaw bearing connecting flange (31) of the frame (30) through the other connecting plate (14).

5. The pressing fixture according to claim 3, characterized in that: The pressure shaft assembly comprises: an upper pressure block (21), two side pressure block assemblies and a locking assembly; The upper pressing block (21) is arranged at the bottom of the middle portion of the crossbeam (12) and is used to press the first portion of the main shaft (40); The first ends of the two side pressure block assemblies are rotatably disposed at the bottom of the middle portion of the beam (12), and are located on both sides of the upper pressure block (21) and are used to hold the first portion of the main shaft (40); The locking assembly is used to lock the two side pressure block assemblies when the two side pressure block assemblies embrace the first part of the main shaft (40), so that the two side pressure block assemblies embrace the first part of the main shaft (40).

6. The pressing fixture according to claim 5, characterized in that: An upper pressing block mounting groove (16) is provided at the bottom of the middle portion of the crossbeam (12); The upper pressing block (21) is installed in the upper pressing block installation groove (16).

7. The pressing tool according to claim 5, characterized in that: The two side pressure block assemblies each include: a side pressure block (22) and a side pressure block mounting frame (23); The first ends of the two side pressure block mounting frames (23) are rotatably arranged at the bottom of the middle part of the beam (12) and are located on both sides of the upper pressure block (21); The two side pressure blocks (22) are arranged one by one on the side pressure block mounting frame (23) and are used to hold the first part of the main shaft (40); The locking assembly is used to lock the second ends of the two side pressure block mounting brackets (23) when the two side pressure blocks (22) embrace the first part of the main shaft (40), so that the two side pressure blocks (22) embrace the first part of the main shaft (40).

8. The pressing fixture according to claim 7, characterized in that: The upper pressing block (21) has a lower arc surface (26) for abutting and matching with the upper arc surface of the first part of the main shaft (40); Among the two side pressure blocks (22), one side pressure block (22) has a left side arcuate surface (27) for abutting and matching with the right side arcuate surface of the first part of the main shaft (40), and the other side pressure block (22) has a right side arcuate surface (28) for abutting and matching with the left side arcuate surface of the first part of the main shaft (40).

9. The pressing fixture according to claim 7, characterized in that: The locking assembly includes a bolt assembly.

10. The pressing fixture according to claim 7, characterized in that: The pressing shaft assembly further comprises two mounting seats (24); The two mounting seats (24) are respectively arranged at the bottom of the middle part of the crossbeam (12) and located on both sides of the upper pressing block (21); The first ends of the two side pressure block mounting frames (23) are rotatably connected to the two mounting seats (24) one by one through pin shafts (25).

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