Loosening prevention mechanism for installed tower cylinder bolt and extrusion tool of loosening prevention mechanism

Abstract

The utility model relates to the technical field of wind driven generator equipment, and aims to solve the technical problems that tower bolts need to be fastened regularly, and time and labor are consumed. In order to solve the technical problem, the utility model provides the anti-loosening mechanism of the installed tower cylinder bolt and the extrusion tool of the anti-loosening mechanism. The locking device comprises a locking outer sleeve which is of an annular structure; a through hole is formed in the locking outer sleeve; the locking outer sleeve comprises an outer sleeve body and a conical guide part arranged at one end of the outer sleeve body, the large-diameter end of the conical guide part is connected with the outer sleeve body, and the large diameter of the conical guide part is larger than the diameter of the outer sleeve body; the locking outer sleeve is arranged at the end of the tower tube screw in a sleeving mode, and the output shaft drives the extrusion head to press downwards in the groove body in the axial direction so as to apply force to the locking outer sleeve to enable the locking outer sleeve to be extruded and deformed and abut against one side of the tower tube nut. The conical guide part is arranged at the end, away from the tower barrel nut, of the locking outer sleeve. The tower barrel nut does not need to be fastened regularly, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine equipment technology, and in particular to an anti-loosening mechanism for installed tower bolts and its pressing tool. Background Technology

[0002] Wind power generation is a method of generating electricity by converting the kinetic energy of wind into electrical energy. It is a clean and pollution-free renewable energy source. Utilizing wind power is very environmentally friendly, and wind energy reserves are enormous. Therefore, wind power generation is receiving increasing attention from countries around the world. Wind turbine generators absorb wind energy through wind turbine blades, and use a transmission system to transfer the absorbed wind energy to the generator shaft, where the generator converts mechanical energy into electrical energy.

[0003] Wind turbines are installed high in the air via towers. The towers bear the weight of the wind turbines and the dynamic loads of the wind, so the stability of the tower structure plays a decisive role in the success of the wind turbine. The towers are fixed in place by bolts. Due to the dynamic wind loads on the towers, these bolts are prone to loosening, which can lead to serious accidents. Current technology involves periodically tightening the bolts to prevent loosening, but this is done using electric or hydraulic wrenches, applying the appropriate torque in multiple passes, which is time-consuming and labor-intensive. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides an anti-loosening mechanism for installed tower bolts, comprising:

[0006] The locking sleeve has a circular ring structure and a through hole. The locking sleeve includes a sleeve body and a conical guide portion at one end of the sleeve body. The large-diameter end of the conical guide portion is connected to the sleeve body, and the large-diameter of the conical guide portion is larger than the diameter of the sleeve body. The locking sleeve is fitted onto the end of the tower screw. When subjected to force, the locking sleeve deforms and grips the tower screw, abutting against one side of the tower nut. The conical guide portion is located at the end of the locking sleeve away from the tower nut.

[0007] In one embodiment of this utility model, the material of the locking sleeve is the same as the material of the tower bolt.

[0008] This utility model also provides a clamping tool for an anti-loosening mechanism of installed tower bolts, comprising:

[0009] The locking clamp has a groove formed by an inward indentation on one side.

[0010] The power unit is installed at the top of the locking clamp; the output shaft of the power unit passes through the locking clamp and extends into the groove.

[0011] The extrusion head is located in the groove and connected to the output shaft; the output shaft drives the extrusion head to press axially downward in the groove to apply force to the locking sleeve in any of the above embodiments to deform it.

[0012] The clamping block is located in the groove and connected to the bottom end of the locking clamp; the top of the clamping block is provided with a clamping groove, and the head of the tower screw is located in the clamping groove; the upper surface of the clamping groove abuts against the surface of the tower.

[0013] In one embodiment of this utility model, the extrusion head has a circular ring structure; the extrusion head includes an extrusion ring and a guide ring disposed at the bottom end of the extrusion ring; the inner diameter of the extrusion ring is smaller than the outer diameter of the outer sleeve body; the guide ring cooperates with the conical guide portion.

[0014] In one embodiment of this utility model, the axis of the extrusion head coincides with the axis of the clamping block.

[0015] In one embodiment of this invention, the extrusion head is detachably connected to the output shaft.

[0016] In one embodiment of this utility model, the head of the tower screw is a hexagonal bolt; the groove is hexagonal in shape.

[0017] In one embodiment of this utility model, the locking block and the locking clamp are detachably connected.

[0018] In one embodiment of this utility model, the mounting block is threadedly connected to the locking clamp.

[0019] In one embodiment of this utility model, the power unit is a hydraulic cylinder.

[0020] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0021] The present invention provides an anti-loosening mechanism for installed tower bolts and its clamping tool, which can prevent the tower nuts from loosening during the initial installation of tower bolts. This can prevent accidents caused by loose tower nuts during use, eliminate the need for regular tightening of tower nuts, save time and effort, and extend the service life of wind turbines. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the anti-loosening mechanism for an installed tower bolt in a preferred embodiment of this utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 yes Figure 1 Enlarged view of point B;

[0026] Figure 4 yes Figure 1 A schematic diagram showing how the locking sleeve, after being compressed and deformed, grips the tower bolt.

[0027] Explanation of reference numerals in the accompanying drawings: 100, locking sleeve; 110, through hole; 120, sleeve body; 130, conical guide;

[0028] 200. Tower bolt; 210. Tower threaded rod; 211. Head; 220. Tower nut;

[0029] 300. Locking clamps; 310. Groove body;

[0030] 400. Power Department;

[0031] 500, Extrusion head; 510, Extrusion ring; 520, Guide ring;

[0032] 600. Card slot; 610. Card holder;

[0033] 700, Tower. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0035] Reference Figures 1-4 As shown, this embodiment of the utility model provides an anti-loosening mechanism for installed tower bolts, including:

[0036] The locking sleeve 100 has a circular ring structure; the locking sleeve 100 has a through hole 110; the locking sleeve 100 includes a sleeve body 120 and a conical guide portion 130 located at one end of the sleeve body 120, the large diameter end of the conical guide portion 130 is connected to the sleeve body 120, and the large diameter of the conical guide portion 130 is larger than the diameter of the sleeve body 120; the locking sleeve 100 is sleeved on the end of the tower screw 210, and the locking sleeve 100 deforms under force to hug the tower screw 210 and abut against one side of the tower nut 220; the conical guide portion 130 is located at the end of the locking sleeve 100 away from the tower nut 220.

[0037] Specifically, this application involves fitting a locking sleeve 100 onto the end of the tower bolt 210, which has already been fitted with a qualified tower bolt 200. With the locking sleeve 100 pressed against the tower nut 220, pressure is applied to the locking sleeve 100 to deform it and grip the tower bolt 210. This locks the tower nut 220, preventing it from rotating and loosening. This prevents the tower nut 220 from loosening during the initial installation of the tower bolt 200, thus avoiding accidents caused by a loose tower nut 220 during use. It eliminates the need for periodic tightening of the tower nut 220, saving time and effort, extending the service life of the wind turbine, significantly reducing maintenance costs, and improving safety.

[0038] Furthermore, the material of the locking sleeve 100 is the same as that of the tower bolt 200.

[0039] This application also provides a clamping tool for the anti-loosening mechanism of an installed tower bolt 200, comprising:

[0040] The locking clamp 300 has a groove 310 formed by an inward recess on one side;

[0041] The power unit 400 is installed at the top of the locking clamp 300; the output shaft of the power unit 400 passes through the locking clamp 300 and extends into the groove 310;

[0042] The extrusion head 500 is located in the groove 310 and connected to the output shaft; the output shaft drives the extrusion head 500 to press down axially in the groove 310 to apply force to the locking sleeve 100 in any of the above embodiments to deform it.

[0043] The mounting block 600 is located in the groove 310 and connected to the bottom end of the locking clamp 300; the top of the mounting block 600 is provided with a slot 610, and the head 211 of the tower screw 210 is located in the slot 610; the upper surface of the slot 610 abuts against the surface of the tower 700.

[0044] Specifically, in this embodiment, when deforming the locking sleeve 100 by compression, first, hold the locking pliers 300 and place the clamping block 600 onto the head 211 of the tower screw 210, ensuring that the compression head 500 is above the locking sleeve 100; under the action of the power unit 400, the compression head 500 moves downward, applying an axial force to the locking sleeve 100, deforming it, thereby causing the locking sleeve 100 to tightly grip the threads of the tower screw 210. This embodiment is convenient and quick to use, has a simple structure, and is low in cost.

[0045] Furthermore, the extrusion head 500 has a circular structure; the extrusion head 500 includes an extrusion ring 510 and a guide ring 520 disposed at the bottom end of the extrusion ring 510; the inner diameter of the extrusion ring 510 is smaller than the outer diameter of the outer sleeve body 120; the guide ring 520 cooperates with the conical guide portion 130. Specifically, when pressure is applied to extrude and deform the outer sleeve 100, the cooperation between the guide ring 520 and the conical guide portion 130 can provide guidance and prevent shaking when the outer sleeve 100 is first extruded and tightened.

[0046] Furthermore, the axis of the extrusion head 500 coincides with the axis of the clamping block 600. Specifically, this improves the stability of the mating between the extrusion tool and the clamping sleeve 100 when extruding the locking sleeve 100.

[0047] Furthermore, the extrusion head 500 is detachably connected to the output shaft. Specifically, this facilitates the replacement of a damaged extrusion head 500.

[0048] Furthermore, the head 211 of the tower screw 210 is a hexagonal bolt; the groove 610 is hexagonal in shape. Specifically, in this embodiment, the shape of the groove 610 is consistent with the shape of the head 211 of the tower screw 210, so as to better fit the head 211 of the tower screw 210 and limit the shaking of the extrusion tool during the extrusion process.

[0049] Furthermore, the locking block 600 is detachably connected to the locking clamp 300. Specifically, this facilitates the replacement of the locking block 600.

[0050] Furthermore, the mounting block 600 is threadedly connected to the locking clamp 300. Specifically, this embodiment allows for quick replacement.

[0051] Furthermore, the power unit 400 employs a hydraulic cylinder. Specifically, in this embodiment, the hydraulic cylinder drives the extrusion head 500 to extend and retract, extruding and locking the outer sleeve 100. This design is simple in structure, reliable in operation, and maintains stable performance under various working conditions; power transmission is smooth.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An installed tower section bolted anti-loosening mechanism, characterized by: include: The locking sleeve has a circular ring structure; the locking sleeve has a through hole; the locking sleeve includes a sleeve body and a conical guide portion located at one end of the sleeve body, the large-diameter end of the conical guide portion is connected to the sleeve body, and the large-diameter of the conical guide portion is larger than the diameter of the sleeve body; the locking sleeve is sleeved on the end of the tower screw, and the locking sleeve deforms under force to hug the tower screw and abut against one side of the tower nut; the conical guide portion is located at the end of the locking sleeve away from the tower nut.

2. The installed tower section bolted anti-unscrew mechanism according to claim 1, characterized in that: The locking sleeve is made of the same material as the tower bolt.

3. A clamping tool for an anti-loosening mechanism of installed tower bolts, characterized in that: The anti-loosening mechanism for installing the installed tower bolts as described in any one of claims 1 to 2 comprises: The locking clamp has a groove formed by an inward indentation on one side. A power unit is installed at the top of the locking clamp; the output shaft of the power unit passes through the locking clamp and extends into the groove. An extrusion head is located in the groove and connected to the output shaft; the output shaft drives the extrusion head to press axially downward in the groove to apply force to the locking sleeve as described in claim 1 to deform it. A locking block is located in the groove and connected to the bottom end of the locking clamp; the top of the locking block is provided with a locking groove, and the head of the tower screw is located in the locking groove.

4. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The extrusion head has a circular ring structure; the extrusion head includes an extrusion ring and a guide ring located at the bottom end of the extrusion ring; the inner diameter of the extrusion ring is smaller than the outer diameter of the outer sleeve body; the guide ring cooperates with the conical guide portion.

5. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The axis of the extrusion head coincides with the axis of the clamping block.

6. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The extrusion head is detachably connected to the output shaft.

7. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The head of the tower screw is a hexagonal bolt; the groove is hexagonal in shape.

8. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The mounting block is detachably connected to the locking clamp.

9. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The mounting block is threadedly connected to the locking clamp.

10. The installed tower section bolted anti-unthreading mechanism extrusion tool of claim 3, wherein: The power unit uses a hydraulic cylinder.

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