Wind power bolt stress detection device

Abstract

The utility model discloses a wind power bolt stress detection device, and relates to the technical field of bolt stress detection. The device comprises a base, a fan-shaped frame is arranged above the base, a moving block is arranged between the inner walls of the two sides of the arc-shaped edge of the fan-shaped frame in a sliding fit mode, a chest expander is installed on the moving block, and an angle adjusting assembly is arranged between the moving block and the fan-shaped frame. An adjusting frame located on one side of the right-angle longitudinal edge of the fan-shaped frame is arranged on the upper side of the base in a sliding fit mode, and a bolt connecting block is installed on the adjusting frame. According to the utility model, through the unique angle adjusting assembly, by using a transmission structure of a worm, a worm gear and a gear, the angle adjustment can be easily realized by rotating an adjusting hand wheel, the detection angle can be conveniently adjusted, the stress detection of the wind power bolt in different stress directions is realized, the comprehensiveness and accuracy of the detection are greatly improved, and the detection efficiency is improved. And the problem that potential stress is missed due to single-angle detection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt stress detection technical field, specifically, relate to a wind power bolt stress detection device. BACKGROUND

[0002] As the key connecting piece connecting each component of wind power equipment, the stress state of wind power bolt directly relates to the operation safety and stability of the whole wind power equipment. In the long run, wind power bolt will be subjected to various alternating loads, vibration and other actions in a complex working environment, resulting in changes in bolt stress. If the bolt stress exceeds its bearing range, it may cause serious problems such as bolt loosening and fracture, thereby affecting the normal operation of wind turbine, and even causing safety accidents.

[0003] The existing wind power bolt stress detection device can usually only perform tensile test on the bolt in the vertical direction, and the function is relatively single. However, the actual wind power bolt will produce different angle pulling when installed at the connecting place of each component of wind power equipment, and cannot perform comprehensive stress detection on the wind power bolt. UTILITY MODEL CONTENTS

[0004] The utility model aims at: aiming at the fact that the existing wind power bolt stress detection device can usually only perform tensile test on the bolt in the vertical direction, and the function is relatively single, but the actual wind power bolt will produce different angle pulling when installed at the connecting place of each component of wind power equipment, and cannot perform comprehensive stress detection on the wind power bolt.

[0005] In order to realize the above-mentioned utility model purpose, the utility model provides the following technical scheme:

[0006] A wind power bolt stress detection device, comprising a base, a fan-shaped frame is arranged above the base, a moving block is slidably connected between the inner walls on both sides of the arc-shaped edge of the fan-shaped frame, a tensioner is installed on the moving block, an angle adjusting assembly is arranged between the moving block and the fan-shaped frame, an adjusting frame is slidably connected to one side of the vertical edge of the fan-shaped frame on the upper side of the base, and a bolt connecting block is installed on the adjusting frame.

[0007] Through the unique angle adjusting assembly, the transmission structure of worm, worm wheel and gear is used, and the angle adjusting can be easily realized by rotating the adjusting handle, so that the detection angle can be conveniently adjusted, the stress detection of wind power bolt under different stress directions is realized, the comprehensiveness and accuracy of detection are greatly improved, and potential stress problems caused by single angle detection are avoided.

[0008] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, a stress sensing ring is installed inside the bolt connection block, and the wind turbine bolt body is tightly fitted to the inner wall of the stress sensing ring. A pull rope is provided between the tension end of the tensioner and the wind turbine bolt body.

[0009] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, a plug is installed on one side of the right-angled longitudinal side of the sector frame, and a slot that cooperates with the plug is opened on one side of the bolt connecting block.

[0010] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, the bottom of the adjustment frame is equipped with a slider, the upper side of the base is provided with a sliding groove that slides with the slider, the upper side of the adjustment frame is provided with a fixing pin, and the upper side of the base is provided with a fixing groove that cooperates with the fixing pin.

[0011] As a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, the angle adjustment component includes fixed rods installed on both sides of the movable block, wherein one side of the fixed rod is rotatably coupled to a movable frame located outside the arc edge of the fan-shaped frame.

[0012] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, the inner walls of both sides of the arc-shaped edge of the fan-shaped frame are provided with a through first groove, and the fixing rod slides and rotates within the first groove.

[0013] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, a fan-shaped toothed block is installed on the outer side of the arc edge of the fan-shaped frame, and a second groove is opened on the side of the fan-shaped toothed block. A connecting column is installed on the side of the movable frame near the fan-shaped frame, and the connecting column slides and rotates in the second groove.

[0014] In a preferred embodiment of the wind turbine bolt stress detection device provided by this utility model, the side of the movable frame is rotatably fitted with a worm and a worm wheel that mesh with each other. One side of the worm wheel is equipped with a gear that meshes with a sector-shaped tooth block, and one end of the worm is equipped with an adjusting handwheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the unique angle adjustment component, the angle can be easily adjusted by rotating the adjustment handwheel using the transmission structure of worm gear, worm wheel and gear. This allows for convenient adjustment of the detection angle, enabling stress detection of wind turbine bolts under different force directions, greatly improving the comprehensiveness and accuracy of the detection, and avoiding the omission of potential stress problems due to single angle detection. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the wind turbine bolt stress detection device provided in this application;

[0017] Figure 2 This is a schematic diagram of the side sectional view of the sector frame provided in this application;

[0018] Figure 3 This is a schematic diagram of the connection structure between the adjustment frame and the bolt connection block provided in this application;

[0019] Figure 4 This is a schematic diagram of the connection structure between the adjustment frame and the base provided in this application;

[0020] Figure 5 A schematic diagram of the angle adjustment component structure provided in this application;

[0021] Figure 6 This is a schematic diagram of the connection structure between the movable block and the movable frame provided in this application.

[0022] In the diagram: 1. Base; 2. Sector-shaped frame; 3. Moving block; 4. Puller; 5. Angle adjustment assembly; 501. Fixed rod; 502. Moving frame; 503. First groove; 504. Sector-shaped toothed block; 505. Second groove; 506. Worm gear; 507. Worm wheel; 508. Gear; 509. Adjusting handwheel; 510. Connecting column; 6. Adjusting frame; 7. Bolt connecting block; 8. Wind power bolt body; 9. Pull rope; 10. Stress sensing ring; 11. Insert rod; 12. Slot; 13. Slider; 14. Slide groove; 15. Fixing pin; 16. Fixing groove. Detailed Implementation

[0023] 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, not all, of the embodiments of this utility model.

[0024] Example 1: Please refer to Figures 1-6A stress detection device for wind turbine bolts includes: a base 1, a sector-shaped frame 2 mounted on top of the base 1, a movable block 3 slidably fitted between the inner walls of the two sides of the arc-shaped edge of the sector-shaped frame 2, a tensioner 4 mounted on the movable block 3, an angle adjustment component 5 between the movable block 3 and the sector-shaped frame 2, an adjustment frame 6 slidably fitted on the upper side of the base 1 on one side of the right-angle longitudinal edge of the sector-shaped frame 2, and a bolt connection block 7 mounted on the adjustment frame 6. A stress sensing ring 10 is installed inside the bolt connection block 7, and a wind turbine bolt body 8 is tightly fitted to the inner wall of the stress sensing ring 10. A pull rope 9 is provided between the tension end of the tensioner 4 and the wind turbine bolt body 8. A plug rod 11 is mounted on one side of the right-angle longitudinal edge of the sector-shaped frame 2, and a slot 12 that mates with the plug rod 11 is opened on one side of the bolt connection block 7. The bottom of the adjustment frame 6 is equipped with a slider 13, and the upper side of the base 1 is provided with a sliding groove 14 that slides with the slider 13. The upper side of the adjustment frame 6 is provided with a fixing pin 15, and the upper side of the base 1 is provided with a fixing groove 16 that cooperates with the fixing pin 15.

[0025] Implementation Process: During wind turbine bolt stress testing, the wind turbine bolt body 8 is first installed in the stress-sensing ring 10 within the bolt connection block 7, ensuring a tight fit between the inner wall of the stress-sensing ring 10 and the wind turbine bolt body 8. Then, the adjusting frame 6 is moved to a suitable position by sliding the slider 13 at the bottom of the adjusting frame 6 within the groove 14 on the base 1. The fixing pin 15 is then inserted into the corresponding fixing groove 16 on the base 1 to fix the position of the adjusting frame 6. The pull rope 9 is then pulled by the tensioner 4, applying tension to the wind turbine bolt body 8. Under this tension, the wind turbine bolt body 8 experiences stress changes. The stress-sensing ring 10 senses these changes and generates a corresponding signal. The design of the sector frame 2 and the moving block 3, along with the cooperation between the insertion rod 11 and the slot 12, ensures the entire device is structurally stable during testing, capable of withstanding significant tension, guaranteeing the reliability of the test results, and reducing testing errors caused by device shaking or displacement.

[0026] Benefits of implementation: It allows the moving block 3 to slide between the inner walls of the two sides of the arc edge of the sector frame 2 to adjust the detection angle.

[0027] Example 2: The angle adjustment assembly 5 includes fixed rods 501 mounted on both sides of the movable block 3, with a movable frame 502 located on the outer side of the arc-shaped edge of the sector frame 2 rotatably fitted around one side of the fixed rod 501. A first groove 503 is formed through the inner walls of both sides of the arc-shaped edge of the sector frame 2, and the fixed rod 501 slides and rotatably fits within the first groove 503. A sector-shaped toothed block 504 is mounted on the outer side of the arc-shaped edge of the sector frame 2, and a second groove 505 is formed on the side of the sector-shaped toothed block 504. A connecting post 510 is mounted on the side of the movable frame 502 near the sector frame 2, and the connecting post 510 slides and rotatably fits within the second groove 505. A worm gear 506 and a worm wheel 507 are rotatably fitted on the side of the movable frame 502, and a gear 508 meshing with the sector-shaped toothed block 504 is mounted on one side of the worm wheel 507. An adjusting handwheel 509 is mounted at one end of the worm gear 506.

[0028] Implementation process: When adjusting the detection angle, rotate the adjusting handwheel 509, which drives the worm gear 506 to rotate. Since the worm gear 506 meshes with the worm wheel 507, the worm wheel 507 rotates accordingly, which in turn drives the gear 508 to rotate. The gear 508 meshes with the sector-shaped toothed block 504, allowing the moving frame 502 to slide and rotate within the second groove 505 of the sector-shaped toothed block 504 via the connecting column 510. At the same time, the moving frame 502 slides and rotates within the first groove 503 of the arc-shaped edge of the sector-shaped frame 2 via the fixing rod 501, thereby enabling the moving block 3 to slide between the inner walls of both sides of the arc-shaped edge of the sector-shaped frame 2 and adjust to the required detection angle.

[0029] Benefits of implementation: It allows the moving block 3 to slide between the inner walls of the two sides of the arc edge of the sector frame 2 to adjust the detection angle.

[0030] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A stress detection device for wind turbine bolts, characterized in that, The system includes a base (1), a fan-shaped frame (2) is mounted on the top of the base (1), a moving block (3) is slidably fitted between the inner walls of the two sides of the arc edge of the fan-shaped frame (2), a tensioner (4) is mounted on the moving block (3), an angle adjustment component (5) is provided between the moving block (3) and the fan-shaped frame (2), and an adjustment frame (6) located on one side of the right-angle longitudinal edge of the fan-shaped frame (2) is slidably fitted on the upper side of the base (1), and a bolt connecting block (7) is mounted on the adjustment frame (6).

2. The wind turbine bolt stress detection device according to claim 1, characterized in that, A stress-sensing ring (10) is installed inside the bolt connection block (7). The inner wall of the stress-sensing ring (10) is tightly fitted with the wind power bolt body (8). A pull rope (9) is provided between the tension end of the tensioner (4) and the wind power bolt body (8).

3. The wind turbine bolt stress detection device according to claim 1, characterized in that, The sector frame (2) has a plug rod (11) installed on one side of its right-angled longitudinal edge, and the bolt connecting block (7) has a slot (12) on one side that mates with the plug rod (11).

4. The wind turbine bolt stress detection device according to claim 1, characterized in that, The bottom of the adjustment frame (6) is equipped with a slider (13), the upper side of the base (1) is provided with a sliding groove (14) that slides with the slider (13), the upper side of the adjustment frame (6) is provided with a fixing pin (15), and the upper side of the base (1) is provided with a fixing groove (16) that cooperates with the fixing pin (15).

5. The wind turbine bolt stress detection device according to claim 1, characterized in that, The angle adjustment assembly (5) includes fixed rods (501) installed on both sides of the movable block (3), wherein one side of the fixed rod (501) is rotatably fitted with a movable frame (502) located outside the arc edge of the fan-shaped frame (2).

6. The wind turbine bolt stress detection device according to claim 5, characterized in that, The inner walls of both sides of the arc edge of the fan-shaped frame (2) are provided with a through first groove (503), and the fixing rod (501) slides and rotates within the first groove (503).

7. The wind turbine bolt stress detection device according to claim 6, characterized in that, A fan-shaped toothed block (504) is installed on the outer side of the arc edge of the fan-shaped frame (2). A second groove (505) is opened on the side of the fan-shaped toothed block (504). A connecting column (510) is installed on the side of the movable frame (502) near the fan-shaped frame (2). The connecting column (510) slides and rotates in the second groove (505).

8. The wind turbine bolt stress detection device according to claim 7, characterized in that, The side of the movable frame (502) is rotatably fitted with a worm (506) and a worm wheel (507). One side of the worm wheel (507) is equipped with a gear (508) that meshes with a sector tooth block (504). One end of the worm (506) is equipped with an adjusting handwheel (509).

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