Fan coupling bolt dismounting auxiliary tool

Abstract

The utility model discloses a fan shaft coupling bolt dismounting auxiliary tool, including spanner, the convex part of spanner one end surface is equipped with can with shaft coupling bolt end face jack hole socket joint cooperation, still include with the hole cavity contour of shaft coupling end face adaptation's restraint component, restraint component with spanner detachable connection, the utility model discloses a fan shaft coupling bolt dismounting auxiliary tool has at least the following beneficial effects: according to the specific structure that the hole cavity and shaft coupling bolt are arranged in the hole cavity periphery side on the shaft coupling end face of fan, set up the convex part of spanner to insert fixed in the end of shaft coupling bolt while, still set up restraint component on spanner, with the help of restraint component insertion in the shaft coupling hole cavity, can prevent spanner from rotating by torsion in the process of shaft coupling bolt dismounting, compared with the mode of hand holding spanner, adopt restraint component fixed spanner can save labor intensity and promote the dismounting efficiency of fan shaft coupling bolt.

Description

Technical Field

[0001] This utility model relates to the field of coupling assembly and disassembly tools, and more specifically, to an auxiliary tooling for assembling and disassembling bolts of a wind turbine coupling. Background Technology

[0002] After a period of operation, the coupling plates of a wind turbine need to be replaced. This process requires removing the old coupling bolts, replacing the coupling plates, and then retightening the bolts. According to operating procedures, the coupling bolts must be tightened to a specific torque, such as 270 Newtons. However, during both tightening and disassembly, to prevent slippage of the coupling bolts and damage to the coupling plates, one of the nuts or bolts must be secured with a tool, and the other must be removed using a wrench or socket. This operation is extremely laborious, and the installation space for the coupling is often limited, making it difficult to access large tools.

[0003] Patent CN204819294U discloses a coupling wrench that can be inserted into and locked into the insertion hole on the end face of the coupling bolt. The tool is relatively small and can be used to disassemble and assemble the coupling bolts on the fan coupling, and to fix one of the nuts and bolts of the coupling bolt. However, the tool is hand-held, and the arm has to bear the torque transmitted by the coupling bolt during the disassembly and assembly of the coupling bolt, making the operation relatively difficult. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings mentioned in the background art and to provide an auxiliary tooling for disassembling and assembling fan coupling bolts.

[0005] The objective of this utility model is achieved through the following technical solution: A tooling for disassembling and assembling bolts of a wind turbine coupling includes a wrench. One end of the wrench has a protrusion that can be inserted into a socket on the end face of the coupling bolt. The wrench also includes a constraint component that can be inserted into a cavity on the end face of the coupling. The constraint component is adapted to the contour of the cavity. The wrench and the constraint component are detachably connected.

[0006] The auxiliary tooling for disassembling and assembling wind turbine coupling bolts of this utility model has at least the following beneficial effects: Based on the specific structure of the fan coupling end face having a cavity and the coupling bolts being located around the cavity, a wrench with a protruding part is used to insert and fix it to the end of the coupling bolt. At the same time, a constraint component is also set on the wrench. With the help of the constraint component inserted into the coupling cavity, the wrench can be prevented from rotating due to torque during the disassembly and assembly of the coupling bolts. Compared with a manual wrench, using a constraint component to fix the wrench can save labor intensity and improve the disassembly and assembly efficiency of the fan coupling bolts.

[0007] Furthermore, the constraint assembly includes a constraint ring and a connecting plate. The constraint ring is adapted to the inner diameter of the coupling cavity, the constraint ring is fixed on the connecting plate, and the connecting plate is connected to the wrench by a first fastening bolt.

[0008] With the above settings, you can choose to use only the wrench as needed, or choose to use a combination of the wrench and the constraint component when manual operation is difficult.

[0009] Furthermore, the constraint rings are semi-rings positioned opposite each other on both ends of the connecting plate, and the two sets of semi-rings are perpendicularly connected to both ends of the connecting plate.

[0010] With the above setup, a set of connecting plates can be used to fix the two sets of semi-rings inside the constraint ring, thereby reducing the overall weight of the constraint assembly.

[0011] Furthermore, the constraint ring includes a semi-annular seat and a rubber pad embedded in the seat. The rubber pad has a protrusion protruding from the outer arc surface of the seat, and the contour of the protrusion is adapted to the contour of the coupling cavity.

[0012] With the above-mentioned arrangement, the rubber pad abuts against the cavity of the coupling, which can prevent scratching the cavity of the coupling during the installation and removal of the coupling bolts.

[0013] Furthermore, the wrench has a mounting wing at its middle, and the connecting plate is connected to the mounting wing by a first fastening bolt.

[0014] With the above configuration, the wing plate structure can increase the mounting surface of the fastening bolts on the wrench, allowing for the installation of multiple first fastening bolts.

[0015] Furthermore, the wrench is vertically connected to the connecting plate.

[0016] Furthermore, the connecting plate includes a connecting plate body and bent portions located at both ends of the connecting plate body, with the bent portions perpendicular to the connecting plate body; a constraint ring is welded to the bent portion.

[0017] With the above configuration, the bent portions on both sides of the connecting plate body can extend downwards, allowing the constraint ring to be inserted into the coupling cavity with a shorter axial length.

[0018] Furthermore, the protrusion includes several connecting posts disposed on one end surface of the wrench.

[0019] Furthermore, the wrench has a long, strip-shaped handle and a connecting part located at one end of the handle, with several connecting posts welded to the surface of the connecting part.

[0020] Furthermore, several connecting posts are second fastening bolts mounted on the wrench.

[0021] With the above setup, the second fastening bolt is installed at the end of the wrench to form a connecting post, replacing welding. Attached Figure Description

[0022] Figure 1 This is a perspective view of the auxiliary tooling for disassembling and assembling the fan coupling bolts in an embodiment of this utility model; Figure 2 This is a schematic diagram of the wrench structure of the auxiliary tooling for disassembling and assembling the fan coupling bolts in this embodiment of the utility model. Figure 3 This is a schematic diagram illustrating the working principle of the auxiliary tooling for disassembling and assembling the fan coupling bolts in this embodiment of the present invention. The attached diagram lists the components represented by each number as follows: 1. Wrench; 10. Handle; 11. Mounting wing; 12. Connecting part; 13. Protrusion; 130. Connecting column; 14. First fastening bolt; 2. Constraint assembly; 20. Connecting plate; 200. Connecting plate body; 201. Bending part; 21. Constraint ring; 210. Seat; 211. Rubber pad; 3. Coupling; 30. Cavity; 31. Coupling bolt. Detailed Implementation

[0023] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Reference Figures 1 to 3 This utility model embodiment provides an auxiliary tool for disassembling and assembling wind turbine coupling bolts, which includes two parts: a wrench 1 and a constraint assembly 2.

[0025] The wrench 1 has a protrusion 13 on one end surface that can be inserted into the insertion hole on the end face of the coupling bolt 31 of the fan coupling 3. By inserting the protrusion 13 into the end face of the coupling bolt 31, the end of the screw in the coupling bolt 31 can be fixed. The constraint component 2 is adapted to the contour of the cavity 30 on the end face of the coupling 3, that is, the constraint component 2 can be partially inserted into the cavity 30. The constraint component 2 is detachably connected to the wrench 1.

[0026] Therefore, based on the specific structure of the fan coupling 3 having a cavity 30 in the middle of its end face and the coupling bolt 31 to be disassembled and assembled located around the cavity 30, the fan coupling bolt disassembly and assembly auxiliary tooling provided in this embodiment, while the protrusion 13 is inserted and fixed to the end of the coupling bolt 31, a constraint component 2 is also provided on the wrench 1. With the help of the constraint component 2 inserted into the cavity 30 of the coupling 3, the wrench 1 can be constrained and limited at both the protrusion 13 and the constraint component 2. During the disassembly and assembly of the coupling bolt 31, the wrench 1 can be prevented from being subjected to torque and rotating.

[0027] In use, simply insert the protrusion 13 of the wrench 1 into the end of the coupling bolt 31, rotate the coupling bolt 31 to the appropriate angle so that the constraint component 2 can be inserted into the cavity 30.

[0028] With the above settings, wrench 1 can be used only as needed, or wrench 1 can be combined with constraint component 2 when it is difficult to operate by hand. This can fix wrench 1.

[0029] The constraint assembly 2 includes a constraint ring 21 and a connecting plate 20. The constraint ring 21 is adapted to the inner diameter of the cavity 30 of the coupling 3, and the connecting plate 20 is used to fix the constraint ring 21 to the wrench 1. That is, the constraint ring 21 is fixed on one side of the connecting plate 20, and the other side of the connecting plate 20 is connected to the wrench 1 by the first fastening bolt 14.

[0030] The constraint ring 21 can be a cylindrical ring or composed of multiple semi-rings.

[0031] For example, in this embodiment, reference is made to Figure 1 The constraint ring 21 is a semi-ring that is set opposite to both ends of the connecting plate 20, and the two sets of semi-rings are perpendicularly connected to both ends of the connecting plate 20. Compared with the whole ring, the use of two sets of semi-rings can reduce the overall weight of the constraint assembly 2.

[0032] Reference Figure 2 In terms of structure, the wrench 1 has a long handle portion 10 and a connecting portion 12 provided at one end of the handle portion 10, while a protrusion 13 is provided on the surface of the connecting portion 12.

[0033] The shape of the protrusion 13 is adapted to the outline of the insertion hole on the end face of the coupling bolt 31. For example, the protrusion 13 can be a regular hexagon.

[0034] Reference Figure 2 In this embodiment, the coupling bolt 31 of the Vestas V90 / MK5 fan has four sets of recessed holes on its end face. Therefore, the protrusion 13 is four sets of connecting posts 130 provided on the surface of the connecting part 12.

[0035] The four sets of connecting posts 130 can be welded and fixed to the surface of the connecting part 12, or the four sets of connecting posts 130 can be the second fastening bolts installed on the wrench 1, that is, the second fastening bolts are installed in the through holes on the connecting part 12, and the screw in the second fastening bolt is inserted into the through hole on the end face of the coupling bolt 31.

[0036] Reference Figure 1 and Figure 2Regarding the installation relationship between the constraint component 2 and the wrench 1, the wrench 1 has a mounting wing 11 in the middle. The width of the mounting wing 11 is greater than the width of the handle portion 10, which can increase the mounting surface of the first fastening bolt 14 on the wrench 1. The connecting plate 20 is connected to the mounting wing 11 through the first fastening bolt 14.

[0037] Multiple first fastening bolts 14 are installed on the mounting wing 11, and during installation, the wrench 1 is perpendicularly connected to the connecting plate 20.

[0038] Reference Figure 1 In one embodiment, the connecting plate 20 includes a connecting plate body 200 and bent portions 201 disposed at both ends of the connecting plate body 200, the bent portions 201 being perpendicular to the connecting plate body 200; the constraint ring 21 is welded to the bent portions 201; in use, the bent portions 201 on both sides of the connecting plate body 200 can extend downward, so that the constraint ring 21 can be inserted into the cavity 30 of the coupling 3 with a shorter axial length.

[0039] The semi-ring structure of the constraint ring 21 can be a single piece of plastic or metal.

[0040] Alternatively, in one embodiment, refer to Figure 1 The constraint ring 21 includes a semi-annular seat 210 and a rubber pad 211 embedded in the seat 210. The rubber pad 211 has a protrusion protruding from the outer arc surface of the seat 210, and the contour of the protrusion is adapted to the contour of the cavity 30 of the coupling 3.

[0041] By having the rubber pad 211 contact the inner wall of the cavity 30 of the coupling 3, the cavity 30 of the coupling 3 can be prevented from being scratched during the disassembly and assembly of the coupling bolt 31 of the coupling 3.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An auxiliary tooling for disassembling and assembling bolts of a wind turbine coupling, comprising a wrench, wherein one end of the wrench has a protrusion that can engage with a socket on the end face of the coupling bolt, characterized in that, It also includes a constraint component that can be inserted into a cavity on the end face of the coupling, and the constraint component is adapted to the contour of the cavity; the wrench is detachably connected to the constraint component.

2. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 1, characterized in that, The constraint assembly includes a constraint ring and a connecting plate. The constraint ring is adapted to the inner diameter of the cavity of the coupling. The constraint ring is fixed on the connecting plate. The connecting plate is connected to the wrench by a plurality of first fastening bolts.

3. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 2, characterized in that, The constraint ring is a semi-ring disposed opposite to each other on both ends of the connecting plate, and the two sets of semi-rings are perpendicularly connected to both ends of the connecting plate.

4. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 3, characterized in that, The constraint ring includes a semi-annular seat and a rubber pad embedded in the seat. The rubber pad has a protrusion protruding from the outer arc surface of the seat, and the contour of the protrusion is adapted to the contour of the cavity of the coupling.

5. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 2, characterized in that, The wrench has a mounting wing at its middle, and the connecting plate is connected to the mounting wing by the first fastening bolt.

6. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 5, characterized in that, The wrench is perpendicularly connected to the connecting plate.

7. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 2, characterized in that, The connecting plate includes a connecting plate body and bent portions located at both ends of the connecting plate body, wherein the bent portions are perpendicular to the connecting plate body; the constraint ring is welded to the bent portions.

8. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 1, characterized in that, The protrusion includes a plurality of connecting posts disposed on one end surface of the wrench.

9. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 8, characterized in that, The wrench has a long handle and a connecting part at one end of the handle, and a plurality of connecting posts are welded to the surface of the connecting part.

10. The auxiliary tooling for disassembling and assembling wind turbine coupling bolts according to claim 8, characterized in that, Several of the connecting posts are second fastening bolts mounted on the wrench.

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