Drilling fixture for wind turbine blades

Abstract

This utility model relates to the field of drilling technology for wind turbine blades, and more particularly to a drilling fixture for wind turbine blades. It includes a connecting base, an adjustable support structure connected to the end face of the connecting base, and a fixing structure connected to the end face of the connecting base and one side of the adjustable support structure. A controller is connected to the side wall of the connecting base via a connecting plate. The adjustable support structure includes a fixed housing connected to the end face of the connecting base, and a drive motor is connected to the inner cavity of the fixed housing. This utility model, by setting an adjustable support structure in the drilling fixture for wind turbine blades, utilizes the drive motor in the adjustable support structure to adjust the height of the fixing ring via a transmission structure, causing the wind turbine blade to rotate around the rotation axis of the rotating connecting plate, thereby keeping one end of the wind turbine blade in a vertical state and improving the drilling accuracy during wind turbine blade drilling.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology for wind turbine blades, specifically to drilling fixtures for wind turbine blades. Background Technology

[0002] Wind turbine blades typically require mounting holes during installation. Currently, in the blade manufacturing process, drilling fixtures mostly use bolts for fixing these mounting holes. This is not very convenient for fixing and disassembling wind turbine blades, requiring more time to secure them and thus affecting drilling efficiency. Furthermore, after prolonged use of the fixture, one end of the wind turbine blade may not be perpendicular to the drill bit, affecting drilling accuracy after turning the hole. To address these issues, a drilling fixture specifically designed for wind turbine blades is needed. Utility Model Content

[0003] The purpose of this invention is to provide a drilling fixture for wind turbine blades to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Drilling fixture for wind turbine blades includes a connecting base, an adjustable support structure connected to the end face of the connecting base, a fixing structure connected to the end face of the connecting base and on one side of the adjustable support structure, and a controller connected to the side wall of the connecting base via a connecting plate.

[0006] The adjustable support structure includes a fixed housing connected to the end face of the connecting base. A drive motor is connected to the inner cavity of the fixed housing. The drive end of the drive motor is connected to a drive rod via a coupling. One end of the drive rod is meshed with a driven bevel gear via a drive bevel gear. A rotating lead screw is connected to the center of the driven bevel gear. A movable slider is symmetrically connected to the side wall of the rotating lead screw. A fixed slide rod is connected to the movable slider. Both ends of the fixed slide rod are connected to the bottom of the inner cavity of the fixed housing. A rotating support rod is connected to the side wall of the movable slider. One end of the rotating support rod is connected to a fixed connecting block. A fixed retaining ring is connected to the fixed connecting block.

[0007] The fixing structure includes a connecting housing, a rotating connecting plate connected to the side wall of the connecting housing, the rotating connecting plate connected to the end face of the connecting base, support feet symmetrically connected to the bottom of the connecting housing, a rotating motor connected to the inner cavity of the connecting housing, a driving rod connected to the driving end of the rotating motor via a coupling, a transmission bevel gear meshing with the other end of the driving rod via a rotating bevel gear, a connecting screw connected to the center of the transmission bevel gear, screw sliders symmetrically connected to the side wall of the connecting screw, a limit slide rod connected to the screw slider, the limit slide rod connected to the bottom of the inner cavity of the connecting housing via a connecting plate, a contour fixing block connected to the end face of the connecting housing, a rotating crank connected to the side wall of the screw slider, a fixing connecting plate connected to the side wall of the rotating crank, one end of the fixing connecting plate connected to the side wall of the contour fixing block, and a contour pressure block connected to the other end of the rotating crank.

[0008] In a preferred embodiment of this utility model, the drive motor is connected to the controller via a wire in an electrical connection manner, and the drive rod is connected to the bottom of the inner cavity of the fixed housing via a bearing seat, wherein the drive rod and the bearing seat are connected in a rotatable manner.

[0009] As a preferred embodiment of this utility model, the rotating lead screw is connected to the bottom of the inner cavity of the fixed housing through a bearing seat, wherein the rotating lead screw and the bearing seat are connected by a rotating connection, and the rotating lead screw is composed of a left-handed lead screw and a right-handed lead screw spliced ​​together.

[0010] As a preferred embodiment of this utility model, the rotating lead screw and the movable slider are connected by a threaded connection, and the movable slider is provided with a connecting hole corresponding to the fixed slide rod. The fixed slide rod and the connecting hole are connected by a sliding connection, and the movable slider and the rotating support rod are rotatably connected by a rotating shaft.

[0011] As a preferred embodiment of this utility model, the rotating support rod and the fixed connecting block are rotatably connected by a rotating shaft, the connecting housing and the rotating connecting plate are rotatably connected by a rotating shaft, and the rotating motor is connected to the controller by a wire and the connection method is electrical connection.

[0012] As a preferred embodiment of this utility model, the drive rod is connected to the bottom of the inner cavity of the connecting housing via a bearing seat, wherein the drive rod and the bearing seat are connected by a rotatable connection, and the connecting screw is connected to the bottom of the inner cavity of the connecting housing via a bearing seat, wherein the connecting screw and the bearing seat are connected by a rotatable connection.

[0013] As a preferred embodiment of this utility model, the connecting screw is composed of a left-hand screw and a right-hand screw. The connecting screw and the screw slider are connected by a threaded connection. The screw slider has a connecting hole corresponding to the limiting slide rod. The limiting slide rod and the connecting hole are connected by a sliding connection. The screw slider and the rotating crank are rotatably connected by a rotating shaft. The rotating crank and the fixed connecting plate are rotatably connected by a rotating shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, an adjustable support structure is set in the drilling fixture used for wind turbine blades. The drive motor in the adjustable support structure adjusts the height of the fixing ring through the transmission structure, so that the wind turbine blade rotates around the rotation axis of the rotating connecting plate, thereby keeping one end of the wind turbine blade in a vertical state and improving the drilling accuracy of the wind turbine blade.

[0016] In this invention, a fixed structure is set in the drilling fixture used for wind turbine blades. The rotating motor in the fixed structure drives the rotating crank to rotate at the connection of the fixed connecting plate through the transmission structure. The conforming pressure block at one end of the rotating crank clamps the wind turbine blade, making the wind turbine blade clamping faster and improving the clamping efficiency. The device is also more convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustable support structure of this utility model;

[0019] Figure 3 for Figure 2 Partial structural diagram;

[0020] Figure 4 This is a schematic diagram of the fixing structure of this utility model;

[0021] Figure 5 for Figure 4 A partial structural diagram.

[0022] In the diagram: 1. Connecting base; 2. Adjustable support structure; 3. Fixed structure; 4. Controller; 201. Fixed housing; 202. Drive motor; 203. Drive rod; 204. Drive bevel gear; 205. Driven bevel gear; 206. Rotating lead screw; 207. Moving slider; 208. Fixed slide rod; 209. Rotating support rod; 210. Fixed connecting block; 211. Fixed retaining ring; 301. Connecting housing; 302. Rotating connecting plate; 303. Support foot; 304. Rotating motor; 305. Drive rotating rod; 306. Rotating bevel gear; 307. Transmission bevel gear; 308. Connecting lead screw; 309. Lead screw slider; 310. Limiting slide rod; 311. Contouring fixing block; 312. Rotating crank; 313. Fixed connecting plate; 314. Contouring pressure block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] For an example, please refer to... Figure 1-5 This utility model provides a technical solution:

[0025] Drilling fixture for wind turbine blades includes a connecting base 1, an adjustable support structure 2 connected to the end face of the connecting base 1, a fixing structure 3 connected to the end face of the connecting base 1 and located on one side of the adjustable support structure 2, and a controller 4 connected to the side wall of the connecting base 1 via a connecting plate.

[0026] In this embodiment, reference Figure 1 , Figure 2 and Figure 3 The adjustable support structure 2 includes a fixed housing 201, which is connected to the end face of the connecting base 1. A drive motor 202 is connected to the inner cavity of the fixed housing 201. The drive end of the drive motor 202 is connected to a drive rod 203 via a coupling. One end of the drive rod 203 is meshed with a driven bevel gear 205 via a drive bevel gear 204. A rotating screw 206 is connected to the center of the driven bevel gear 205. A movable slider 207 is symmetrically connected to the side wall of the rotating screw 206. A fixed slide rod 208 is connected to the movable slider 207. Both ends of the fixed slide rod 208 are connected to the bottom of the inner cavity of the fixed housing 201. A rotating support rod 209 is connected to the side wall of the movable slider 207. A fixed connecting block 210 is connected to one end of the rotating support rod 209. A fixed retaining ring 211 is connected to the fixed connecting block 210.

[0027] Based on the above structure and the connection relationship of the above structure, the controller 4 controls the drive motor 202 to run. When the drive end of the drive motor 202 rotates, it drives the drive rod 203, the drive bevel gear 204, the driven bevel gear 205 and the rotating screw 206 to rotate in sequence. When the rotating screw 206 rotates, it drives two sets of moving sliders 207 to move in opposite or contradictory directions on the side wall of the rotating screw 206. When the moving sliders 207 move, the height of the fixing ring 211 is adjusted by the rotating support rod 209 and the fixing connecting block 210.

[0028] Furthermore, the drive motor 202 is connected to the controller 4 via wires in an electrical connection manner, and the operation of the drive motor 202 can be controlled by the controller 4.

[0029] Furthermore, the drive rod 203 is connected to the bottom of the inner cavity of the fixed housing 201 via a bearing seat. The drive rod 203 is rotatably connected to the bearing seat. The rotating lead screw 206 is connected to the bottom of the inner cavity of the fixed housing 201 via a bearing seat. The rotating lead screw 206 is rotatably connected to the bearing seat. The rotating lead screw 206 is composed of a left-handed lead screw and a right-handed lead screw. The rotating lead screw 206 is threadedly connected to the movable slider 207. The movable slider 207 has a corresponding connecting hole with the fixed slider 208. The fixed slider 208 is slidably connected to the connecting hole. The movable slider 207 is rotatably connected to the rotating support rod 209 via a rotating shaft. The rotating support rod 209 is rotatably connected to the fixed connecting block 210 via a rotating shaft. When the drive rod 203 rotates, the height of the fixed retaining ring 211 can be adjusted.

[0030] In this embodiment, reference Figure 1 , Figure 4 and Figure 5The fixed structure 3 includes a connecting housing 301, a rotating connecting plate 302 connected to the side wall of the connecting housing 301, the rotating connecting plate 302 connected to the end face of the connecting base 1, support feet 303 symmetrically connected to the bottom of the connecting housing 301, a rotating motor 304 connected to the inner cavity of the connecting housing 301, a driving rod 305 connected to the driving end of the rotating motor 304 via a coupling, a transmission bevel gear 307 meshing with the other end of the driving rod 305 via a rotating bevel gear 306, and a connecting screw 308 connected to the center of the transmission bevel gear 307. A lead screw slider 309 is symmetrically connected to the side wall of the lead screw 308. A limit slide rod 310 is connected to the lead screw slider 309. The limit slide rod 310 is connected to the bottom of the inner cavity of the connecting housing 301 through a connecting plate. A contour fixing block 311 is connected to the end face of the connecting housing 301. A rotating crank 312 is connected to the side wall of the lead screw slider 309. A fixing connecting plate 313 is connected to the side wall of the rotating crank 312. One end of the fixing connecting plate 313 is connected to the side wall of the contour fixing block 311. The other end of the rotating crank 312 is connected to a contour pressing block 314.

[0031] Based on the above structure and the connection relationship of the above structure, the controller 4 controls the operation of the rotary motor 304. When the drive end of the rotary motor 304 rotates, it sequentially drives the drive rod 305, the rotating bevel gear 306, the transmission bevel gear 307 and the connecting screw 308 to rotate. When the connecting screw 308 rotates, it drives the two sets of screw sliders 309 to move in opposite or contradictory directions on the side wall of the connecting screw 308. When the screw sliders 309 move, they drive the rotating crank 312 to rotate at the connection of the fixed connecting plate 313, so that the contoured pressure block 314 at one end of the rotating crank 312 can fix, clamp and release the wind turbine blade. Furthermore, the rotary motor 304 is connected to the controller 4 through wires and the connection method is electrical connection, so the controller 4 can control the operation of the rotary motor 304.

[0032] Furthermore, the connecting housing 301 and the rotating connecting plate 302 are rotatably connected via a rotating shaft. The driving rod 305 is connected to the bottom of the inner cavity of the connecting housing 301 via a bearing seat. The driving rod 305 and the bearing seat are connected in a rotatable manner. The connecting screw 308 is connected to the bottom of the inner cavity of the connecting housing 301 via a bearing seat. The connecting screw 308 and the bearing seat are connected in a rotatable manner. The connecting screw 308 is composed of a left-hand screw and a right-hand screw. The connecting screw 308 and the screw slider 309 are connected in a threaded manner. The screw slider 309 and the limiting slide rod 310 are provided with connecting holes corresponding to them. The limiting slide rod 310 and the connecting holes are connected in a sliding manner. The screw slider 309 and the rotating crank 312 are rotatably connected via a rotating shaft. The rotating crank 312 and the fixed connecting plate 313 are rotatably connected via a rotating shaft. When the driving rod 305 rotates, it can drive the contouring pressure block 314 to rotate.

[0033] The working process of this utility model is as follows: When using the drilling fixture for wind turbine blades, first connect the power supply to the device to put it into operation. Control the rotating motor 304 to run through the controller 4. When the drive end of the rotating motor 304 rotates, it drives the drive rod 305 to rotate. The drive rod 305 drives the rotating bevel gear 306 to rotate. The rotating bevel gear 306 drives the transmission bevel gear 307 to rotate. The transmission bevel gear 307 drives the connecting screw 308 to rotate. When the connecting screw 308 rotates, it drives the two sets of screw sliders 309 to move in opposite directions on the side wall of the connecting screw 308. When the screw sliders 309 move, they drive the rotating crank 312 to rotate at the connection of the fixed connecting plate 313, so that the contouring pressure block 314 at one end of the rotating crank 312 fixes and clamps the wind turbine blade.

[0034] Subsequently, the controller 4 controls the operation of the drive motor 202. When the drive end of the drive motor 202 rotates, it drives the drive rod 203 to rotate. The drive rod 203 drives the drive bevel gear 204 to rotate. The drive bevel gear 204 drives the driven bevel gear 205 to rotate. The driven bevel gear 205 drives the rotating screw 206 to rotate. When the rotating screw 206 rotates, it drives two sets of moving sliders 207 to move along opposite or contradictory directions on the side wall of the rotating screw 206. When the moving sliders 207 move, the height of the fixing ring 211 is adjusted by the rotating support rod 209 and the fixing connecting block 210, so that the wind turbine blade rotates around the rotating axis of the rotating connecting plate 302, thereby making one end of the wind turbine blade in a vertical state, which improves the drilling accuracy of the wind turbine blade during drilling.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling fixture for wind turbine blades, comprising a connecting base (1), characterized in that: An adjustable support structure (2) is connected to the end face of the connecting base (1), and a fixed structure (3) is connected to the end face of the connecting base (1) and to one side of the adjustable support structure (2). A controller (4) is connected to the side wall of the connecting base (1) via a connecting plate. The adjustable support structure (2) includes a fixed housing (201) connected to the end face of the connecting base (1). A drive motor (202) is connected inside the fixed housing (201). The drive end of the drive motor (202) is connected to a drive rod (203) via a coupling. One end of the drive rod (203) is meshed with a driven bevel gear (205) via a drive bevel gear (204). A rotating screw is connected to the center of the driven bevel gear (205). A rod (206) is provided. A movable slider (207) is symmetrically connected to the side wall of the rotating lead screw (206). A fixed slide rod (208) is connected to the movable slider (207). Both ends of the fixed slide rod (208) are connected to the bottom of the inner cavity of the fixed housing (201). A rotating support rod (209) is connected to the side wall of the movable slider (207). One end of the rotating support rod (209) is connected to a fixed connecting block (210). A fixed retaining ring (211) is connected to the fixed connecting block (210). The fixed structure (3) includes a connecting housing (301), a rotating connecting plate (302) connected to the side wall of the connecting housing (301), the rotating connecting plate (302) being connected to the end face of the connecting base (1), support feet (303) symmetrically connected to the bottom of the connecting housing (301), a rotating motor (304) connected to the inner cavity of the connecting housing (301), the driving end of the rotating motor (304) being connected to a driving rod (305) via a coupling, the other end of the driving rod (305) being meshed with a transmission bevel gear (307) via a rotating bevel gear (306), and a connecting screw (308) connected to the center of the transmission bevel gear (307). A screw slider (309) is symmetrically connected to the side wall of the connecting screw (308). A limiting slide rod (310) is connected to the screw slider (309). The limiting slide rod (310) is connected to the bottom of the inner cavity of the connecting housing (301) through a connecting plate. A contour fixing block (311) is connected to the end face of the connecting housing (301). A rotating crank (312) is connected to the side wall of the screw slider (309). A fixing connecting plate (313) is connected to the side wall of the rotating crank (312). One end of the fixing connecting plate (313) is connected to the side wall of the contour fixing block (311). The other end of the rotating crank (312) is connected to a contour pressing block (314).

2. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The drive motor (202) is connected to the controller (4) by wires and the connection method is electrical connection. The drive rod (203) is connected to the bottom of the inner cavity of the fixed housing (201) by bearing seat, wherein the connection method between the drive rod (203) and the bearing seat is rotatable connection.

3. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The rotating lead screw (206) is connected to the bottom of the inner cavity of the fixed housing (201) through a bearing seat. The rotating lead screw (206) and the bearing seat are connected by a rotating connection. The rotating lead screw (206) is composed of a left-handed lead screw and a right-handed lead screw.

4. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The rotating lead screw (206) and the movable slider (207) are connected by a threaded connection. The movable slider (207) has a connecting hole corresponding to the fixed slide rod (208). The fixed slide rod (208) and the connecting hole are connected by a sliding connection. The movable slider (207) and the rotating support rod (209) are rotatably connected by a rotating shaft.

5. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The rotating support rod (209) and the fixed connecting block (210) are rotatably connected by a rotating shaft. The connecting housing (301) and the rotating connecting plate (302) are rotatably connected by a rotating shaft. The rotating motor (304) is connected to the controller (4) by a wire and the connection method is electrical connection.

6. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The drive rod (305) is connected to the bottom of the inner cavity of the connecting housing (301) through a bearing seat, wherein the drive rod (305) and the bearing seat are connected by rotation. The connecting screw (308) is connected to the bottom of the inner cavity of the connecting housing (301) through a bearing seat, wherein the connecting screw (308) and the bearing seat are connected by rotation.

7. The drilling fixture for wind turbine blades according to claim 1, characterized in that: The connecting screw (308) is composed of a left-hand screw and a right-hand screw. The connecting screw (308) and the screw slider (309) are connected by a threaded connection. The screw slider (309) is provided with a connecting hole corresponding to the limiting slide rod (310). The limiting slide rod (310) and the connecting hole are connected by a sliding connection. The screw slider (309) and the rotating crank (312) are rotatably connected by a rotating shaft. The rotating crank (312) and the fixed connecting plate (313) are rotatably connected by a rotating shaft.

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