A tooling for replacing the coupling of the wind turbine gearbox oil pump motor.

Abstract

This utility model provides a tooling for replacing the coupling of a fan gearbox oil pump motor, comprising: a handle, a first plate for fitting against the side wall of the spline sleeve of the coupling, and a second plate for fitting against the end of the spline sleeve and the end of the spline of the coupling. The handle is connected to the side wall of the first plate, and the end of the first plate is connected to the second plate. By designing a dedicated tooling for replacing couplings, the spline sleeve is protected during the replacement of a new coupling, ensuring that the spline sleeve is not subjected to secondary compression during the replacement process.

Description

Technical Field

[0001] This utility model relates to the maintenance of the gearbox oil pump motor coupling of a wind turbine generator set, and more particularly to a tooling for replacing the gearbox oil pump motor coupling of a wind turbine. Background Technology

[0002] According to publicly available technical documents and on-site operation and maintenance records, the gearbox oil pump motor coupling of a certain wind farm's UP115-2MW combined power wind turbine (wind turbine generator) adopts a spline sleeve connection structure, and its core components include: upper coupling, lower coupling and nylon spline sleeve.

[0003] This structure relies on the elastic deformation of the spline sleeve to achieve axial compensation, with a designed lifespan of 10 years. However, after 7 years of actual operation, a UP115-2MW wind turbine at a certain wind farm experienced problems such as spline sleeve tooth surface wear and material aging, leading to the following phenomena:

[0004] Increased axial movement: After the spline sleeve fails, radial displacement occurs between the coupling joints, causing direct metal-to-metal friction.

[0005] Replacement process defect: When installing the new coupling, the spline sleeve will be squeezed, resulting in local plastic deformation (the measured deformation is >0.2mm), which leads to the mating clearance exceeding the standard (>0.1mm, the standard requirement is ≤0.05mm).

[0006] Based on field experience, the existing technology has the following limitations:

[0007] There is no dedicated tooling for changing couplings. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a tooling for replacing the coupling of the oil pump motor in the gearbox of a fan, which addresses the shortcomings of the existing technology.

[0009] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A tooling for replacing the coupling of a fan gearbox oil pump motor includes: a handle, a first plate for fitting against the side wall of the spline sleeve of the coupling, and a second plate for fitting against the end of the spline sleeve of the coupling and the end of the spline of the coupling. The handle is connected to the side wall of the first plate, and the end of the first plate is connected to the second plate.

[0010] The beneficial effects of adopting the technical solution of this utility model are: by designing a special tooling for replacing the coupling, the spline sleeve is protected during the replacement of the new coupling, ensuring that the spline sleeve is not subjected to secondary compression during the replacement of the new coupling.

[0011] Furthermore, the handle is fixedly connected to the side wall of the first plate, and the end of the first plate is fixedly connected to the second plate.

[0012] The beneficial effects of adopting the above-mentioned further technical solution are: it is convenient to pick up and put down the tooling by the handle, and it is convenient to adjust the position of the first plate and the second plate by the handle.

[0013] Furthermore, the handle, the first plate, and the second plate are integrally formed.

[0014] The beneficial effects of adopting the above-mentioned further technical solutions are: improving the load strength of the tooling, facilitating the precise placement and adjustment of the tooling.

[0015] Furthermore, both the first plate and the second plate are arc-shaped plates, and a fourth plate is installed at the bottom of the first plate for abutting against the bottom area between two adjacent splines of the coupling.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are: it facilitates the fit between the first plate and the side wall of the spline sleeve, and facilitates the fit between the second plate and the end of the spline sleeve and the end of the coupling. The bottom abutment between the fourth plate and the two adjacent splines of the lower coupling provides stable support for the tooling.

[0017] Furthermore, the coupling includes: an upper coupling for connecting to a motor, a lower coupling for connecting to an oil pump, and a spline sleeve. The ends of the upper coupling and the lower coupling are both equipped with splines, and the sidewall of the spline sleeve is provided with splines. The upper coupling and the lower coupling mesh with each other through the spline sleeve.

[0018] The beneficial effects of adopting the above-mentioned further technical solution are: the upper coupling is used to connect to the motor; the lower coupling is used to connect to the oil pump; the spline sleeve is used to transmit torque; and it facilitates the connection of the motor to the oil pump via the coupling.

[0019] Furthermore, the spline of the lower coupling is located between two adjacent splines of the spline sleeve, and the end of the second plate is adapted to the spline of the lower coupling and the ends of two adjacent splines of the spline sleeve.

[0020] The advantages of adopting the above-mentioned further technical solution are: it facilitates the fit between the second plate and the end of the spline sleeve and the end of the coupling; it reduces the risk of the replacement process, ensures replacement accuracy, increases replacement efficiency, reduces labor intensity, and makes the tool use more effective.

[0021] Furthermore, the upper coupling, the lower coupling, and the spline sleeve are all provided with shaft holes in their middle portions, and the upper coupling, the lower coupling, and the spline sleeve are coaxially arranged, with one side of the second plate body adapted to the shaft hole.

[0022] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Shaft holes are provided in the middle of the upper coupling, lower coupling, and spline sleeve, facilitating the connection of the motor to the upper coupling and the oil pump to the lower coupling via these holes. One side of the second plate is adapted to the shaft hole, facilitating the fit between the second plate and the end of the spline sleeve and the end of the coupling. This reduces the risk of replacement, ensures replacement accuracy, increases replacement efficiency, reduces labor intensity, and improves tool performance.

[0023] Furthermore, both the upper and lower couplings are made of 42CrMo material, and the spline sleeve is a nylon spline sleeve.

[0024] The beneficial effects of adopting the above-mentioned further technical solution are: both the upper and lower couplings are made of 42CrMo material, which improves the strength and toughness of the upper and lower couplings. The spline sleeve is a nylon spline sleeve, which facilitates axial compensation through the elastic deformation of the spline sleeve.

[0025] Furthermore, the handle protrudes from the side wall of the coupling.

[0026] The beneficial effects of adopting the above-mentioned further technical solution are: it is convenient to pick up and put down the tooling by the handle, and it is convenient to adjust the position of the first plate and the second plate by the handle.

[0027] Furthermore, the end of the second plate is provided with a groove, and the handle is a rectangular plate.

[0028] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The end of the second plate is provided with a groove, which facilitates the second plate's fastening to the end of the spline sleeve and the end of the coupling. This prevents the tooling from falling off during replacement, improving the stability and reliability of the tooling. The handle is a rectangular plate, which facilitates handle processing and makes it easier for the user to grip the handle.

[0029] The advantages of this invention in its additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is one of the structural schematic diagrams of a tooling for replacing the coupling of a fan gearbox oil pump motor, provided as an embodiment of the present invention.

[0032] Figure 2 This is the second schematic diagram of the tooling for replacing the coupling of the fan gearbox oil pump motor, which is provided in an embodiment of this utility model.

[0033] Figure 3 The third schematic diagram of the tooling for replacing the coupling of the fan gearbox oil pump motor provided in this embodiment of the utility model.

[0034] Figure 4 The fourth schematic diagram of the tooling for replacing the coupling of the fan gearbox oil pump motor provided in this embodiment of the utility model.

[0035] Figure 5 This is one of the usage diagrams of the tooling for replacing the coupling of the fan gearbox oil pump motor provided in this embodiment of the utility model.

[0036] Figure 6 This is the second diagram showing the usage state of the tooling for replacing the coupling of the fan gearbox oil pump motor, as provided in this embodiment of the utility model.

[0037] Figure 7 The third diagram shows the usage status of the tooling for replacing the coupling of the fan gearbox oil pump motor, which is provided in the embodiment of this utility model.

[0038] Figure 8 The fourth diagram shows the usage status of the tooling for replacing the coupling of the fan gearbox oil pump motor, which is provided in the embodiment of this utility model.

[0039] Figure 9 This is one of the structural schematic diagrams of the coupling provided in the embodiment of this utility model.

[0040] Figure 10 The second schematic diagram of the coupling provided in the embodiment of this utility model.

[0041] Figure 11 This is one of the structural schematic diagrams of the upper coupling provided in the embodiment of this utility model.

[0042] Figure 12 This is the second structural schematic diagram of the upper coupling provided in the embodiment of this utility model.

[0043] Figure 13 This is one of the structural schematic diagrams of the spline sleeve provided in the embodiment of this utility model.

[0044] Figure 14 The second schematic diagram of the spline sleeve provided in the embodiment of this utility model.

[0045] Figure 15 The third schematic diagram of the spline sleeve provided in the embodiment of this utility model.

[0046] Figure 16 This is one of the structural schematic diagrams of the lower coupling provided in the embodiment of this utility model.

[0047] Figure 17 This is the second structural schematic diagram of the lower coupling provided in an embodiment of the present utility model.

[0048] Figure 18 The third schematic diagram of the lower coupling provided in this embodiment of the utility model.

[0049] The following are the symbols and their meanings: 1. Handle; 2. Spline sleeve; 3. First plate; 4. Second plate; 5. Upper coupling; 6. Lower coupling; 7. Fourth plate. Detailed Implementation

[0050] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0053] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0054] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] like Figures 1 to 18 As shown, this utility model embodiment provides a tooling for replacing the coupling of a fan gearbox oil pump motor, including: a handle 1, a first plate 3 for fitting against the side wall of the spline sleeve 2 of the coupling, and a second plate 4 for fitting against the end of the spline sleeve 2 of the coupling and the end of the spline of the coupling. The handle 1 is connected to the side wall of the first plate 3, and the end of the first plate 3 is connected to the second plate 4.

[0057] The beneficial effects of adopting the technical solution of this utility model are: by designing a special tooling for replacing the coupling, the spline sleeve is protected during the replacement of the new coupling, ensuring that the spline sleeve is not subjected to secondary compression during the replacement of the new coupling.

[0058] The handle is tilted relative to the first plate.

[0059] The tooling provided in this embodiment for replacing the gearbox oil pump motor coupling of a wind turbine can be used, but is not limited to, for replacing the gearbox oil pump motor coupling of a UP115-2MW combined power wind turbine in a wind farm.

[0060] This utility model embodiment ensures the installation accuracy and protects the spline sleeve when replacing the gearbox oil pump motor coupling of the UP115-2MW joint power wind turbine by extending the handle (handle) and the tooling that fits the coupling and spline sleeve, and does not cause secondary compression to the spline sleeve.

[0061] The tooling is made of 42CrMo alloy steel to protect the spline sleeve and ensure the installation process.

[0062] The process involves first installing the lower coupling, then installing a spline sleeve on it. After the spline sleeve is installed, multiple fixtures are installed on top of the spline sleeve and the lower coupling. The upper coupling is then hoisted above the spline sleeve and slowly lowered until its bottom end aligns with the top of the fixtures. The positions of the fixtures, the lower coupling, and the spline sleeve are then slowly adjusted until they are coaxially aligned. Finally, the fixtures are removed.

[0063] like Figures 1 to 18 As shown, the handle 1 is further fixedly connected to the side wall of the first plate 3, and the end of the first plate 3 is fixedly connected to the second plate 4.

[0064] The beneficial effects of adopting the above-mentioned further technical solution are: it is convenient to pick up and put down the tooling by the handle, and it is convenient to adjust the position of the first plate and the second plate by the handle.

[0065] like Figures 1 to 18 As shown, the handle 1, the first plate 3, and the second plate 4 are integrally formed structures.

[0066] The beneficial effects of adopting the above-mentioned further technical solutions are: improving the load strength of the tooling, facilitating the precise placement and adjustment of the tooling.

[0067] like Figures 1 to 18 As shown, both the first plate 3 and the second plate 4 are arc-shaped plates, and a fourth plate 7 is installed at the bottom of the first plate 3 for abutting against the bottom area between two adjacent splines of the coupling.

[0068] The beneficial effects of adopting the above-mentioned further technical solution are: it facilitates the fit between the first plate and the side wall of the spline sleeve, and facilitates the fit between the second plate and the end of the spline sleeve and the end of the coupling. The bottom abutment between the fourth plate and the two adjacent splines of the lower coupling provides stable support for the tooling.

[0069] Both the second and fourth plates can be horizontally positioned, with the fourth plate protruding beyond the first plate. The first plate and the handle can be vertically positioned. The fourth plate can be integrally formed with the first plate. The fourth plate is fitted to the bottom area between two adjacent splines of the lower coupling.

[0070] like Figures 1 to 18 As shown, the coupling further includes: an upper coupling 5 for connecting to a motor, a lower coupling 6 for connecting to an oil pump, and a spline sleeve 2. The ends of the upper coupling 5 and the lower coupling 6 are both equipped with splines, and the side wall of the spline sleeve 2 is provided with splines. The upper coupling 5 and the lower coupling 6 are engaged by the spline sleeve 2.

[0071] The beneficial effects of adopting the above-mentioned further technical solution are: the upper coupling is used to connect to the motor; the lower coupling is used to connect to the oil pump; the spline sleeve is used to transmit torque; and it facilitates the connection of the motor to the oil pump via the coupling.

[0072] The upper coupling 5 and the lower coupling 6 can have the same structure.

[0073] The upper coupling connects to the motor shaft and is made of 42CrMo with a quenching and tempering treatment; the lower coupling connects to the oil pump shaft and is made of the same material as the upper coupling; the nylon spline sleeve is used to transmit torque and has a hardness of HRC 60-65.

[0074] like Figures 1 to 18 As shown, further, the spline of the lower coupling 6 is located between the splines of two adjacent spline sleeves 2, and the end of the second plate 4 is adapted to the spline of the lower coupling 6 and the end of the spline of the two adjacent spline sleeves 2.

[0075] The advantages of adopting the above-mentioned further technical solution are: it facilitates the fit between the second plate and the end of the spline sleeve and the end of the coupling; it reduces the risk of the replacement process, ensures replacement accuracy, increases replacement efficiency, reduces labor intensity, and makes the tool use more effective.

[0076] like Figures 1 to 18 As shown, further, the upper coupling 5, the lower coupling 6, and the spline sleeve 2 are all provided with shaft holes in the middle, the upper coupling 5, the lower coupling 6, and the spline sleeve 2 are coaxially arranged, and one side of the second plate 4 is adapted to the shaft hole.

[0077] The beneficial effects of adopting the above-mentioned further technical solution are as follows: Shaft holes are provided in the middle of the upper coupling, lower coupling, and spline sleeve, facilitating the connection of the motor to the upper coupling and the oil pump to the lower coupling via these holes. One side of the second plate is adapted to the shaft hole, facilitating the fit between the second plate and the end of the spline sleeve and the end of the coupling. This reduces the risk of replacement, ensures replacement accuracy, increases replacement efficiency, reduces labor intensity, and improves tool performance.

[0078] The phrase "one side of the second plate 4 is adapted to the shaft hole" means that the curvature of the side of the second plate 4 adjacent to the shaft hole is the same as the curvature of the shaft hole, so that the second plate 4 and the shaft hole are coaxial.

[0079] Furthermore, both the upper coupling 5 and the lower coupling 6 are made of 42CrMo material, and the spline sleeve 2 is a nylon spline sleeve.

[0080] The beneficial effects of adopting the above-mentioned further technical solution are: both the upper and lower couplings are made of 42CrMo material, which improves the strength and toughness of the upper and lower couplings. The spline sleeve is a nylon spline sleeve, which facilitates axial compensation through the elastic deformation of the spline sleeve.

[0081] like Figures 1 to 18 As shown, the handle 1 is further provided to protrude from the side wall of the coupling.

[0082] The beneficial effects of adopting the above-mentioned further technical solution are: it is convenient to pick up and put down the tooling by the handle, and it is convenient to adjust the position of the first plate and the second plate by the handle.

[0083] like Figures 1 to 18 As shown, the second plate 4 is further provided with a groove at its end, and the handle 1 is a rectangular plate.

[0084] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The end of the second plate is provided with a groove, which facilitates the second plate's fastening to the end of the spline sleeve and the end of the coupling. This prevents the tooling from falling off during replacement, improving the stability and reliability of the tooling. The handle is a rectangular plate, which facilitates handle processing and makes it easier for the user to grip the handle.

[0085] When using the tooling provided in this embodiment of the utility model, the tooling is inserted into the connection between the lower coupling and the spline sleeve through the observation holes on both sides of the oil pump motor. Then, the upper coupling and the motor are slowly lowered. First, the upper coupling is fitted into the tooling (the tooling used to replace the oil pump motor coupling of the fan gearbox). Then, coaxial alignment is slowly performed. After alignment is completed, the oil pump motor is lowered so that the upper coupling fits into the lower coupling. The tooling is then removed, and the motor fan is slowly rotated to check that the coupling is not stuck and the spline sleeve is not squeezed (standard requirement ≤0.05mm). The replacement is then complete.

[0086] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling for replacing a fan gear case oil pump motor coupling, characterized in that, include: The device includes a handle, a first plate for fitting against the side wall of the spline sleeve of the coupling, and a second plate for fitting against the end of the spline sleeve of the coupling and the end of the spline of the coupling. The handle is connected to the side wall of the first plate, and the end of the first plate is connected to the second plate.

2. A tool for replacing a fan gear case oil pump motor coupling according to claim 1, wherein, The handle is fixedly connected to the side wall of the first plate, and the end of the first plate is fixedly connected to the second plate.

3. A tool for replacing a motor coupling of a fan gear box oil pump according to claim 1, characterized in that, The handle, the first plate, and the second plate are integrally formed.

4. A tool for replacing a motor coupling of a gear box oil pump of a fan as claimed in claim 1, wherein, Both the first plate and the second plate are arc-shaped plates, and a fourth plate is installed at the bottom of the first plate to abut against the bottom area between two adjacent splines of the coupling.

5. A tool for replacing a motor coupling of a gear box oil pump of a fan according to claim 1, characterized in that, The coupling includes: An upper coupling for connecting to a motor, a lower coupling for connecting to an oil pump, and a spline sleeve are provided. The ends of the upper coupling and the lower coupling are both equipped with splines. The side wall of the spline sleeve is provided with splines. The upper coupling and the lower coupling are engaged by the spline sleeve.

6. A tool for replacing a fan gear case oil pump motor coupling according to claim 5, wherein, The spline of the lower coupling is located between two adjacent splines of the spline sleeve, and the end of the second plate is adapted to the spline of the lower coupling and the end of two adjacent splines of the spline sleeve.

7. A tool for replacing a motor coupling of a fan gear box oil pump according to claim 5, characterized in that, The upper coupling, the lower coupling, and the spline sleeve are all provided with shaft holes in their middle parts. The upper coupling, the lower coupling, and the spline sleeve are coaxially arranged, and one side of the second plate is adapted to the shaft hole.

8. A tool for replacing a motor coupling of a fan gear box oil pump according to claim 5, characterized in that, Both the upper and lower couplings are made of 42CrMo material, and the spline sleeve is a nylon spline sleeve.

9. A tool for replacing a motor coupling of a fan gear box oil pump according to claim 1, characterized in that, The handle protrudes from the side wall of the coupling.

10. A tool for replacing a motor coupling of a fan gear box oil pump according to claim 1, characterized in that, The end of the second plate is provided with a groove, and the handle is a rectangular plate.

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