A bearing end cover auxiliary disassembly tool

Abstract

This application discloses an auxiliary disassembly fixture for bearing end caps, relating to the field of tooling. It includes a base mounted on a mounting seat on one side of the bearing housing. A support rod is rotatably connected to the base, with its rotation axis vertically aligned. A lifting rod is hinged to the upper end of the support rod, with its rotation axis horizontally aligned. A lifting hole is provided at the end of the lifting rod. A locking element is provided on the support rod for locking the lifting rod. This application provides a disassembly fixture that facilitates the disassembly and assembly of large bearing end caps.

Description

Technical Field

[0001] This application relates to the field of tooling, and in particular to a tooling for assisting in the disassembly of a bearing end cap. Background Technology

[0002] Reference Figure 1 The wind turbine main shaft structure includes a wind turbine main shaft, a bearing, and a bearing housing 1; an end cover 2 is installed on one side of the bearing, and the end cover 2 has multiple threaded holes 21 formed along the circumference. Mounting seats 11 are formed on both sides of the bearing housing 1, and two connecting parts 12 are spaced apart on the mounting seats 11. Each connecting part 12 has a reserved hole 13 for hoisting.

[0003] When the bearing end cap is small in size and weight, two workers can support it from both sides before installing and removing it. However, when the end cap is large in size and weight, manual operation is difficult. Therefore, there is an urgent need to invent a tooling fixture that facilitates the installation and removal of bearings. Utility Model Content

[0004] To facilitate the disassembly and assembly of bearing end caps, this application provides an auxiliary disassembly tool for bearing end caps.

[0005] The bearing end cover auxiliary disassembly tooling provided in this application adopts the following technical solution:

[0006] A bearing end cover auxiliary disassembly fixture includes a base mounted on a mounting seat on one side of the bearing housing, a support rod rotatably connected to the base, the rotation axis of the support rod being vertically arranged, a lifting rod hinged to the upper end of the support rod, the rotation axis of the lifting rod being horizontal, and a lifting hole provided at the end of the lifting rod; a locking element for locking the lifting rod is provided on the support rod.

[0007] By adopting the above technical solution, during the disassembly and assembly process, the upper end of the hand chain hoist is hooked to the lifting hole, and then the lifting eye bolt is connected to the threaded hole on the end cover. The lower hook of the hand chain hoist is hooked to the lifting eye bolt, which facilitates the disassembly and assembly of the end cover. Furthermore, the lifting position can be adjusted by rotating the support rod and the lifting rod to accommodate the disassembly and assembly of bearing end covers of different sizes.

[0008] Preferably, the upper end of the support rod is integrally formed with a connecting block, and the connecting block is provided with two connecting plates. The end of the hoisting rod is hinged to the two connecting plates. The locking element is set as a positioning pin. The two connecting plates are provided with a plurality of first insertion holes. The end of the hoisting rod is provided with a second insertion hole. The positioning pin passes through the first insertion hole and the second insertion hole to lock the hoisting rod.

[0009] By adopting the above technical solution, the lifting rod can be locked at different angles by using the positioning pin to cooperate with different first insertion holes, thereby achieving the locking of the lifting rod position.

[0010] Preferably, the rotation angle of the hoisting rod is 90 degrees, 100 degrees, and 110 degrees.

[0011] Preferably, the lower end of the base is connected to the mounting part of the bearing seat, the upper end of the base has a rotating part, and the lower end of the support rod is rotatably engaged with the rotating part through a bearing.

[0012] Preferably, two pre-drilled holes are provided with locking pins, and the mounting part is provided with locking holes that engage with the locking pins. The locking pins are threaded, and the first nut is threadedly connected to the threaded part of the locking pin, so that the locking pin is fixed at the connecting part. A washer is fitted on the locking pin, and the washer is located between the mounting part and the connecting part. The threaded part of the locking pin is threadedly connected to a second nut and a locking nut, and the second nut and the first nut are located on both sides of the connecting part. The locking nut abuts against the mounting part.

[0013] By adopting the above technical solution, the locking pin passes through the reserved hole on the bearing seat in sequence and is inserted into the locking hole on the mounting plate. The first nut and the second nut are used to lock the locking pin. The mounting part and the connecting part of the base are pressed and locked by the locking nut, thereby fixing the base.

[0014] Preferably, a reinforcing part is formed at the connection between the mounting part and the rotating part.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] First, connect the upper hook of the chain hoist to the lifting hole, then screw the eye bolt into the threaded hole of the end cap. Next, hook the lower hook of the chain hoist onto the eye bolt. This allows for convenient assembly and disassembly of large end caps. Furthermore, by rotating the support rod and lifting rod, the lifting position can be flexibly adjusted to accommodate the assembly and disassembly needs of bearing end caps of different sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the wind turbine main shaft in related technologies;

[0018] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0019] Figure 3 This is a partial structural diagram of an embodiment of this application, mainly illustrating the structure of the locating pin;

[0020] Figure 4This is a partial structural diagram of an embodiment of this application, mainly illustrating the structure of the locking pin;

[0021] Figure 5 This is an overall schematic diagram of an embodiment of this application, mainly showing the positions of the locking pin, the first nut, the second nut, the locking nut, and the washer.

[0022] Reference numerals: 1. Bearing housing; 11. Mounting base; 12. Connecting part; 13. Reserved hole; 2. End cover; 21. Threaded hole; 3. Base; 31. Mounting part; 311. Locking hole; 32. Rotating part; 33. Reinforcing part; 4. Support rod; 41. Connecting block; 42. Connecting plate; 421. First insertion hole; 5. Lifting rod; 51. Lifting hole; 52. Second insertion hole; 6. Positioning pin; 7. Locking pin; 71. Threaded part; 8. First nut; 9. Second nut; 10. Locking nut; 20. Washer. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an auxiliary disassembly tool for bearing end caps.

[0025] Reference Figure 1 and Figure 2 The bearing end cover auxiliary disassembly fixture includes a base 3, which is fixedly connected to the mounting seat 11 on one side of the bearing seat 1; a support rod 4 is rotatably connected to the base 3, the rotation axis of the support rod 4 is vertically set, a lifting rod 5 is hinged to the upper end of the support rod 4, the rotation axis of the lifting rod 5 is horizontal, a lifting hole 51 is opened at the end of the lifting rod 5, and a locking element for locking the lifting rod 5 is provided on the support rod 4.

[0026] When performing disassembly and assembly operations, the upper hook of the hand chain hoist must first be hooked and fixed with the preset lifting hole 51. Then, the lifting eye bolt is threadedly connected to the uppermost threaded hole 21 of the end cover 2. Finally, the lower hook of the hand chain hoist is hooked with the lifting eye bolt to build a stable lifting auxiliary structure, which provides effective mechanical support for the disassembly and assembly of the end cover 2, significantly reduces the intensity of manual operation and improves the safety of operation.

[0027] Meanwhile, the device, with its rotatable support rod 4 and lifting rod 5, allows for flexible adjustment of the lifting point's spatial position. When dealing with bearing end caps 2 of different sizes and specifications, simply rotating the support rod 4 to change its extension angle or adjusting the rotation amplitude of the lifting rod 5 can align the lifting center of gravity with the geometric center of the end cap 2. This ensures that the end cap 2 remains balanced during disassembly and assembly, preventing damage to components due to uneven force, thus expanding the device's applicability and meeting diverse disassembly and assembly needs.

[0028] Reference Figure 2 and Figure 3 The upper end of the support block is integrally formed with a connecting block 41, and two connecting plates 42 are integrally formed on the connecting block 41. A rotating area is formed between the two connecting plates 42. The end of the lifting rod 5 is located in the rotating area, and the end of the lifting rod 5 is hinged to the two connecting plates 42 by a rotating pin.

[0029] The locking element is a positioning pin 6. Multiple first insertion holes 421 are correspondingly provided on the two connecting plates 42, and a second insertion hole 52 is provided at the end of the lifting rod 5. The positioning pin 6 passes through the first insertion holes 421 and the second insertion holes 52 to lock the position of the lifting rod 5. In fact, there are three first insertion holes 421. When the second insertion hole 52 corresponds to the three first insertion holes 421, the rotation angle of the lifting rod 5 is 90 degrees, 100 degrees, and 110 degrees.

[0030] By selectively engaging the positioning pin 6 with the first insertion hole 421 at different positions, the lifting rod 5 can be securely locked at multiple preset angle positions. Specifically, the positioning pin 6 forms a rigid connection with the corresponding first insertion hole 421 through axial insertion, and the mechanical limiting effect of the pin-hole engagement restricts the rotational freedom of the lifting rod 5, thereby achieving precise locking of its spatial position. By changing the engagement combination of the positioning pin 6 and the first insertion hole 421, the angle state of the lifting rod 5 can be flexibly switched.

[0031] Reference Figure 2 , Figure 4 and Figure 5 The lower end of the base 3 forms a mounting portion 31 that connects to the mounting base 11 of the bearing seat 1, and the upper end of the base 3 forms a rotating portion 32. A reinforcing portion 33 is formed at the connection between the mounting portion 31 and the rotating portion 32 to improve the structural strength of the base 3. The lower end of the support rod 4 is rotatably engaged with the rotating portion 32 via a bearing.

[0032] Locking pins 7 are inserted into two pre-drilled holes 13. The mounting portion 31 has locking holes 311 that engage with the locking pins 7. The locking pins 7 have threaded portions 71, and a first nut 8 is threaded onto them. The first nut 8 is located outside the connecting portion 12. The first nut 8 rotates and abuts against the connecting portion 12, thus fixing the locking pins 7. A second nut 9 and a locking nut 10 are also threaded onto the locking pins 7. The second nut 9 cooperates with the first nut 8 to lock the locking pins 7. The first nut 8 and the second nut 9 are distributed on both sides of the connecting portion 12. The locking nut 10 abuts against the mounting portion 31 of the base 3, causing the mounting portion 31 to be tightly abutted against the connecting portion 12. A washer 20 is also fitted onto the locking pins 7, located between the mounting portion 31 and the connecting portion 12.

[0033] The locking pin 7 passes through the reserved holes 13 on the bearing housing 1 in sequence along the axial direction and forms an insertion fit with the locking hole 311 preset on the mounting plate. The rigid connection between the bearing housing 1 and the mounting plate is achieved by the double nut fastening mechanism. At the same time, the locking nut 10 applies pressure along the axial direction through the threaded engagement with the locking pin 7, so that the mounting part 31 of the base 3 and the connecting part 12 are tightly abutted, thereby fixing the base 3.

[0034] The implementation principle of the bearing end cover auxiliary disassembly fixture in this application embodiment is as follows: When performing disassembly and assembly operations, first hook the upper end hook of the hand chain hoist to the lifting hole 51 on the lifting rod 5, then form a threaded connection with the threaded hole 21 on the end cover 2 through the lifting eye bolt, and then hook the lower side hook of the hand chain hoist to the lifting eye bolt. The end cover 2 is supported by the lifting method, thereby assisting the subsequent disassembly operation of the end cover 2.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bearing end cap assisted dismounting tool, characterized in that: It includes a base (3) mounted on a mounting base (11) on one side of the bearing seat (1), a support rod (4) rotatably connected to the base (3), the rotation axis of the support rod (4) is vertically arranged, a lifting rod (5) is hinged to the upper end of the support rod (4), the rotation axis of the lifting rod (5) is horizontal, and a lifting hole (51) is opened at the end of the lifting rod (5); a locking element for locking the lifting rod (5) is provided on the support rod (4).

2. The bearing end cover auxiliary dismounting tool according to claim 1, characterized in that: The upper end of the support rod (4) is integrally formed with a connecting block (41), and the connecting block (41) is provided with two connecting plates (42). The end of the hoisting rod (5) is hinged to the two connecting plates (42). The locking component is set as a positioning pin (6). The two connecting plates (42) are provided with a plurality of first insertion holes (421) respectively. The end of the hoisting rod (5) is provided with a second insertion hole (52). The positioning pin (6) passes through the first insertion hole (421) and the second insertion hole (52) to lock the hoisting rod (5).

3. The bearing end cover auxiliary dismounting tool according to claim 1, characterized in that: The rotation angles of the hoisting rod (5) are 90 degrees, 100 degrees and 110 degrees.

4. The bearing end cover auxiliary dismounting tool according to claim 1, characterized in that: The lower end of the base (3) has a mounting part (31) that is connected to the bearing seat (1) mounting base (11), and the upper end of the base (3) has a rotating part (32). The lower end of the support rod (4) is rotatably engaged with the rotating part (32) through a bearing.

5. The bearing end cover auxiliary disassembly fixture according to claim 4, characterized in that: Two pre-drilled holes (13) are provided with locking pins (7). The mounting part (31) is provided with locking holes (311) that are inserted and engaged with the locking pins (7). The locking pins (7) have threaded portions (71). The first nut (8) is threadedly connected to the threaded portion (71) of the locking pins (7), so that the locking pins (7) are fixed at the connecting part (12). A washer (20) is fitted on the locking pins (7). The washer (20) is located between the mounting part (31) and the connecting part (12). The threaded portion (71) of the locking pins (7) is threadedly connected to the second nut (9) and the locking nut (10). The second nut (9) and the first nut (8) are located on both sides of the connecting part (12). The locking nut (10) abuts against the mounting part (31).

6. The bearing end cover auxiliary dismounting tool according to claim 4, characterized in that: A reinforcing part (33) is formed at the connection between the mounting part (31) and the rotating part (32).

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