Bolt fastening tool capable of reducing safety risk of falling of coupler

Abstract

The utility model relates to the technical field of wind driven generator couplings, in particular to a bolt fastening tool capable of reducing the safety risk of coupler falling, which comprises a positioning seat and a clamping part, one end of the positioning seat is fixedly connected with the clamping part, and the other end of the positioning seat is provided with a positioning claw. The tool has the beneficial effects that the positioning clamping jaw on the positioning seat is matched with the bolt on the generator coupler, that is, the positioning clamping jaw is clamped into the positioning hole in the bolt mounting tool end, and the clamping part is clamped by virtue of an auxiliary tool, so that the damage caused by directly clamping the surface of the bolt by virtue of the auxiliary tool is avoided; and meanwhile, the positioning clamping jaw is matched with the auxiliary tool to stabilize the bolt, the nut is screwed through the torque wrench, the bolt cannot rotate along with the nut, and therefore fastening work of the bolt is smoothly and efficiently completed.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine couplings, and in particular to a bolt fastening tool capable of reducing the safety risk of coupling falling off. Background Art

[0002] Wind power generation has the advantages of being environmentally friendly, renewable, economical, easy to construct, and reducing the probability of sandstorms. Therefore, wind turbines are widely used, and Vestas wind turbines, as the world's leading wind turbines, are particularly popular. In order to improve the safety factor and reduce the risk of Vestas couplings falling off, bolt tightening is very important. At present, pliers are generally used for clamping and disassembly and fixing. However, when using a torque wrench to tighten or remove the nut, the nut cannot be tightened to the specified torque, making the generator coupling loose and posing a safety risk of coupling falling off. At the same time, there is often a situation where the pliers cannot clamp, causing the bolt to rotate as a whole. In addition, the pliers will cause certain damage to the bolt surface during the clamping process, making it impossible to complete the bolt tightening work smoothly and efficiently. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to smoothly and efficiently tighten the nut of the generator coupling to a specified torque to complete the tightening work of the bolt, ensure that the generator coupling is firmly fixed, and reduce the safety risk of it falling off.

[0004] The technical solution of the utility model for solving the above technical problems is as follows: a bolt tightening tool for reducing the safety risk of coupling falling off, comprising a positioning seat and a clamping part, one end of the positioning seat is fixedly connected to the clamping part, and a positioning claw is provided on the other end of the positioning seat, and the positioning claw is used to be plugged into the bolt of the generator coupling.

[0005] The beneficial effects of the present invention are as follows: by cooperating with the positioning claws on the positioning seat and the bolts on the generator coupling, the positioning claws are inserted into the positioning holes at the end of the bolt installation tool, and the clamping portion is clamped with the aid of an auxiliary tool, thereby fixing the bolts of the generator coupling, facilitating the tightening of the nut and avoiding damage caused by the auxiliary tool directly clamping the bolt surface. In the present invention, the positioning claws and the auxiliary tool cooperate to stabilize the bolts, and the nut is tightened to the specified torque with the aid of a torque wrench, thereby ensuring that the coupling is securely fixed and reducing the safety risk of the coupling falling off. At the same time, the positioning claws and the auxiliary tool cooperate to prevent the bolts from rotating, thereby completing the bolt tightening work smoothly and efficiently.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the edge of the positioning seat extends in a direction away from the clamping portion to form a positioning sleeve.

[0008] The beneficial effect of adopting the above further solution is that by sleeve-fitting the positioning sleeve onto the end of the bolt installation tool, the bolt is further limited in position, so that it is not easy to rotate when the bolt is tightened.

[0009] Furthermore, the length of the positioning sleeve along its axial direction is greater than the length of the positioning claw.

[0010] The beneficial effect of adopting the above-mentioned further scheme is that when the positioning claw is inserted into the positioning hole of the bolt installation tooling end, the length of the positioning sleeve is greater than the length of the positioning claw, so that the bolt installation tooling end with a certain thickness can be completely inserted into it, so that the bolt installation tooling end is completely wrapped and just clamped in the positioning sleeve, thereby stabilizing the bolt.

[0011] Furthermore, there is a gap between the positioning claw and the positioning sleeve.

[0012] The beneficial effect of adopting the above further scheme is: a certain gap is left between the positioning claw and the positioning sleeve, so that after the positioning claw is inserted into the positioning hole on the bolt installation tool end, the positioning sleeve and the bolt installation tool end fit more closely, thereby better stabilizing the bolt when tightening it.

[0013] Furthermore, the positioning seat is circular.

[0014] The beneficial effect of adopting the above further solution is that the positioning seat is set to be circular, which just matches the shape of the bolt installation tool end and can better cooperate with the bolt installation tool end.

[0015] Furthermore, there are multiple positioning claws, and the multiple positioning claws are evenly distributed along the circumferential direction on the end surface of the other end of the positioning seat.

[0016] The beneficial effect of adopting the above further solution is that the multiple positioning claws and the positioning holes on the bolt installation tool end are matched one by one, playing a limiting role when tightening the bolt.

[0017] Furthermore, there are four positioning claws.

[0018] The beneficial effect of adopting the above further solution is that the number of positioning claws is set to 4, which just matches the positioning holes on the end of the bolt installation fixture.

[0019] Furthermore, the clamping portion is located at the center of one end of the positioning seat.

[0020] The beneficial effect of adopting the above further solution is that the clamping portion is arranged in the center of the positioning seat, and when the auxiliary tool clamps the clamping portion, the force is more balanced and the clamping is more stable.

[0021] Furthermore, the clamping portion is a regular hexagonal prism.

[0022] The beneficial effect of adopting the above further solution is that the clamping portion is set as an edge surface, which makes clamping more convenient and stable when clamping with the help of auxiliary tools.

[0023] Furthermore, the positioning claw is a cylinder.

[0024] The beneficial effect of adopting the above-mentioned further scheme is: by setting the positioning claw as a cylinder, it just matches the positioning hole on the end of the bolt installation tool. When tightening the bolt, the clamping part is clamped by an auxiliary tool, and a force is applied to the end face of the bolt installation tool. The two cooperate with each other to limit the rotation of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a top view of the bolt fastening device of the utility model;

[0026] Figure 2 It is a side view of the bolt fastening device of the utility model;

[0027] Figure 3 This is a cross-sectional view of the bolt fastening device of the present invention;

[0028] Figure 4 This is a schematic diagram of the bolts of the Vestas wind turbine coupling of the present utility model;

[0029] Figure 5 This is a side view of the bolts of the Vestas wind turbine coupling of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 100, positioning seat; 200, clamping portion; 300, positioning claw; 400, positioning sleeve;

[0032] 1. Bolt mounting tool end; 2. Positioning hole; 3. Locking nut. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1-Figure 5 As shown, this embodiment provides a bolt tightening tool that reduces the safety risk of the coupling falling off, including a positioning seat 100 and a clamping portion 200, one end of the positioning seat 100 is fixedly connected to the clamping portion 200, and a positioning claw 300 is provided on the other end of the positioning seat 100, and the positioning claw 300 is used to be plugged into the bolt of the generator coupling.

[0035] In this embodiment, the positioning claw 300 on the positioning seat 100 cooperates with the bolt on the Vestas wind turbine coupling, that is, the positioning claw 300 is inserted into the positioning hole 2 of the bolt installation tool end 1, and the clamping portion 200 is clamped with the help of an auxiliary tool, thereby fixing the bolt of the generator coupling, facilitating the tightening of the nut and avoiding damage caused by the auxiliary tool directly clamping the bolt surface. In the present utility model, the positioning claw 300 and the auxiliary tool cooperate to stabilize the bolt, and the nut is tightened to the specified torque with the help of a torque wrench, thereby ensuring that the coupling is securely fixed and reducing the safety risk of the coupling falling off. At the same time, the positioning claw 300 and the auxiliary tool cooperate to prevent the bolt from rotating, thereby completing the bolt tightening work smoothly and efficiently.

[0036] On the basis of any of the above solutions, the edge of the positioning seat 100 extends in a direction away from the clamping portion 200 to form a positioning sleeve 400 .

[0037] By sleeve-fitting the positioning sleeve 400 on the bolt installation tool end 1 , the bolt is further limited in position, so that it is not easy to rotate when the bolt is screwed.

[0038] Based on any of the above solutions, the axial length of the positioning sleeve 400 is greater than the length of the positioning claw 300 .

[0039] When the positioning claw 300 is inserted into the positioning hole 2 of the bolt installation tool end 1, the length of the positioning sleeve 400 is greater than the length of the positioning claw 300, so that the bolt installation tool end 1 with a certain thickness can be completely inserted into it, so that the bolt installation tool end 1 is completely wrapped and just clamped in the positioning sleeve 400, thereby securing the bolt.

[0040] Based on any of the above solutions, there is a gap between the positioning claw 300 and the positioning sleeve 400.

[0041] A certain gap is left between the positioning claw 300 and the positioning sleeve 400, so that after the positioning claw 300 is inserted into the positioning hole 2 on the bolt installation tool end 1, the positioning sleeve 400 and the bolt installation tool end 1 fit more closely, thereby better stabilizing the bolt when tightening it.

[0042] Based on any of the above solutions, the positioning seat 100 is circular.

[0043] The positioning seat 100 is set to be circular, which just matches the shape of the bolt installation tool end 1 and can better cooperate with the bolt installation tool end 1.

[0044] Accordingly, the positioning sleeve 400 is cylindrical.

[0045] On the basis of any of the above solutions, there are multiple positioning claws 300, and the multiple positioning claws 300 are evenly distributed along the circumferential direction on the other end surface of the positioning seat 100.

[0046] The plurality of positioning claws 300 are matched with the positioning holes 2 on the bolt installation tool end 1 in a one-to-one manner, and play a limiting role when the bolt is tightened.

[0047] Based on any of the above solutions, the number of positioning claws 300 is four.

[0048] The number of the positioning claws 300 is set to 4, which just matches the positioning holes 2 on the bolt installation tool end 1.

[0049] On the basis of any of the above solutions, the clamping portion 200 is located at the center of one end of the positioning seat 100 .

[0050] The clamping portion 200 is arranged at the center of the positioning seat 100. When the auxiliary tool clamps the clamping portion 200, the force is more balanced and the clamping is more stable.

[0051] Based on any of the above solutions, the clamping portion 200 is a regular hexagonal prism.

[0052] The clamping portion 200 is configured as an edge face, which makes clamping more convenient and stable when clamping with the aid of auxiliary tools.

[0053] Alternatively, the cross section of the clamping portion 200 may be rectangular.

[0054] Based on any of the above solutions, the positioning claw 300 is a cylinder.

[0055] By setting the positioning claw 300 as a cylinder, it just matches the positioning hole 2 on the bolt installation tool end 1. When tightening the bolt, the clamping part 200 is clamped by an auxiliary tool, and a force is applied to the end face of the bolt installation tool end 1. The two cooperate with each other to limit the rotation of the bolt.

[0056] Specifically, the positioning claw 300 and the positioning hole 2 are interference fit.

[0057] Alternatively, the positioning claw 300 may be a regular hexagonal prism.

[0058] In a specific embodiment, the bolts of the Vestas V90 wind turbine coupling are tightened. Figure 4 and Figure 5As shown, the circular end surface is the bolt installation fixture end 1, which has four circular positioning holes 2 and a locking nut 3 that matches the bolt. The corresponding bolt locking device has a circular positioning seat 100, a positioning sleeve 400 with an outer diameter of 31.2mm, an inner diameter of 29.2mm, and an axial length of 7mm. The four cylindrical positioning claws 300 have a diameter of 5.8mm and a length of 4mm. The clamping portion 200 is a regular hexagonal prism with a distance of 13mm between its two opposite sides and a length of 6mm along its axial direction. The specific bolt locking steps are as follows:

[0059] S1: Insert the bolts through the corresponding holes on the coupling;

[0060] S2: Insert the four positioning claws 300 into the positioning holes 2 on the bolt installation tool end 1 respectively, and apply a certain force along the axial direction of the bolt installation tool end 1, so that the positioning sleeve 400 is sleeved on the bolt installation tool end 1 and the bolt installation tool end 1 is clamped therein;

[0061] S3: Clamp the clamping portion 200 with the aid of an auxiliary tool, and apply a certain circumferential force to the bolt installation fixture end 1 to limit the rotation of the clamping portion 200;

[0062] S4: Match the locking nut 3 with the bolt and tighten the locking nut 3 using a torque wrench to complete the tightening of the bolt.

[0063] By using this bolt tightening device, it is avoided that the auxiliary tool directly clamps the bolt installation tool end 1 with the help of an auxiliary tool, thereby damaging the bolt surface. At the same time, the operation is convenient and the labor intensity is reduced. The bolt is limited and stabilized by cooperating with the positioning claw 300 and the positioning sleeve 400. The locking nut 3 is screwed with the help of a torque wrench and tightened to the specified torque, thereby ensuring that the coupling is firmly fixed and reducing the safety risk of the coupling falling off. At the same time, the positioning claw 300 and the auxiliary tool cooperate to prevent the bolt from rotating during the tightening process, so that the bolt tightening work can be completed smoothly and efficiently.

[0064] In the description of the present invention, it should be understood that the terms "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In the description of the present invention, “a plurality of” means at least two, such as two, three, etc., unless otherwise clearly defined.

[0066] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bolt fastening tool for reducing the safety risk of coupling falling off, characterized in that: The invention comprises a positioning seat (100) and a clamping portion (200), wherein one end of the positioning seat (100) is fixedly connected to the clamping portion (200), and the other end of the positioning seat (100) is provided with a positioning claw (300), and the positioning claw (300) is used for plugging with a bolt of a generator coupling.

2. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 1 is characterized in that: The edge of the positioning seat (100) extends in a direction away from the clamping portion (200) to form a positioning sleeve (400).

3. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 2, characterized in that: The length of the positioning sleeve (400) along its axial direction is greater than the length of the positioning claw (300).

4. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 2, characterized in that: There is a gap between the positioning claw (300) and the positioning sleeve (400).

5. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 1, characterized in that: The positioning seat (100) is circular.

6. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 5, characterized in that: There are multiple positioning claws (300), and the multiple positioning claws (300) are evenly distributed along the circumferential direction on the other end surface of the positioning seat (100).

7. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 6, characterized in that: There are four positioning claws (300).

8. The bolt fastening tool for reducing the safety risk of coupling falling off according to claim 1, characterized in that: The clamping portion (200) is located at the center of one end of the positioning seat (100).

9. A bolt fastening tool for reducing the safety risk of coupling falling off according to any one of claims 1 to 8, characterized in that: The clamping portion (200) is a regular hexagonal prism.

10. A bolt fastening tool for reducing the safety risk of coupling falling off according to any one of claims 1 to 8, characterized in that: The positioning claw (300) is cylindrical.

Images