Wind power blade overturning equipment

Abstract

The invention relates to wind power blade overturning equipment which comprises a base. The rotating table is rotationally arranged on the base, a cover body is arranged on the rotating table, one end of the cover body is hinged to the rotating table, and a locking structure is arranged at the other end of the cover body; the driving mechanism comprises a transmission belt which is arranged around the rotating table and the cover body, a driving assembly which is in transmission connection with the transmission belt, and a tensioning assembly which is used for keeping the transmission belt tensioned in the opening and closing process of the cover body; by means of the openable annular frame formed by the rotating table and the cover body, vertical hoisting, storing and taking of workpieces from the top of equipment are achieved, the situation that in a traditional lateral hoisting mode, the lateral operation space of the equipment is occupied is thoroughly avoided, the problem that the height of a sling is limited is solved, sufficient receding space is provided for hoisting operation, and the hoisting efficiency and safety performance are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of wind power blades, and particularly relates to a wind power blade overturning device. BACKGROUND

[0002] A wind power blade is large in size, heavy in weight and a complex composite material component, and needs to be overturned to a specific angle in processes such as polishing, punching, coating and detection in the production and manufacturing process. The existing overturning device has the following problems: A large crane is usually used to overturn the wind power blade in cooperation with a lifting belt, and the crane has the problems of low efficiency, poor positioning accuracy, low safety and easy damage to the blade. In the hoisting of the wind power blade on the processing equipment, the wind power blade is mostly hoisted from the side of the equipment, and the hoisting process occupies the space of the personnel or the working equipment on the side of the equipment, and the height of the lifting cable cannot be higher than the overturning device, resulting in difficult hoisting.

[0003] Therefore, a special device capable of safely, accurately and efficiently overturning and installing the wind power blade at multiple angles is urgently needed. SUMMARY

[0004] In order to solve the above problems in the prior art, the application aims to provide a wind power blade overturning device.

[0005] The technical scheme adopted by the application is as follows: a base; a rotating table rotatably arranged on the base, wherein a cover is arranged on the rotating table, one end of the cover is hingedly connected to the rotating table, and the other end of the cover is provided with a locking structure; a driving mechanism, comprising a transmission belt arranged around the rotating table and the cover, a driving assembly in transmission connection with the transmission belt, and a tensioning assembly for keeping the transmission belt taut during opening and closing of the cover; a clamping mechanism, comprising a clamping assembly oppositely arranged on the base and the cover, and a supporting assembly arranged on one side of the base adjacent to the clamping assembly; the clamping assembly and the supporting assembly each comprise a guide portion, a bearing seat slidably connected to the guide portion, and a clamping portion telescopically mounted on the bearing seat; the guide portion is formed with a movement track for the bearing seat to slide along the thickness direction of the rotating table.

[0006] As a preferred embodiment of the application, a friction-reducing supporting wheel set is rotatably arranged on the base, one end of the transmission belt is fixedly connected to the cover, and the other end of the transmission belt is fixedly connected to the base.

[0007] As a preferred embodiment of the present application, the tensioning assembly comprises a pulley set and a fixed wheel set in transmission connection with the transmission belt; the pulley set comprises a sliding rail, a first rotating shaft in sliding connection with the sliding rail via a sliding base, a first gear in rotation connection with the rotating shaft and in engagement with the transmission belt, and a first driving member arranged on the base for driving the first rotating shaft to move.

[0008] As a preferred embodiment of the present application, the fixed wheel set comprises a second rotating shaft in rotation connection with the base, a second gear in synchronous rotation with the second rotating shaft and in engagement with the transmission belt, and a locking structure for limiting rotation of the second rotating shaft.

[0009] As a preferred embodiment of the present application, the locking structure is: a ratchet pawl structure comprising a ratchet arranged on the second rotating shaft, a pawl arranged on the base and in engagement with the ratchet, and a second driving member for driving the pawl to rotate; or a disc brake structure comprising a brake disc arranged on the second rotating shaft and a brake arranged on the base and used for clamping the brake disc; When the cover is opened or closed, the locking structure locks the second gear to prevent the rotating table from rotating.

[0010] As a preferred embodiment of the present application, the guide portion comprises a guide base fixed to the base or the cover, the guide base is formed with the moving track, and the bearing seat is rotationally arranged with a guide wheel in sliding connection with the moving track at both ends; a first locking member is arranged between the base or the cover and the bearing seat for limiting sliding of the bearing seat.

[0011] As a preferred embodiment of the present application, the clamping portion comprises an outer box body fixedly connected with the bearing seat, an inner box body in sliding connection within the outer box body, and a third driving member for driving the inner box body to extend and retract.

[0012] As a preferred embodiment of the present application, the third driving member is a screw rod transmission member or a cylinder extension member; The inner box body is arranged with a clamping force detection member for detecting clamping force applied by the third driving member to the workpiece.

[0013] As a preferred embodiment of the present application, the inner box body is rotationally connected with a clamp seat via a rotary support, a second locking member is arranged between the clamp seat and the inner box body for limiting rotation of the clamp seat; a clamp is rotationally mounted on both ends of the clamp seat via a hinged seat, and a third locking member is arranged between the clamp and the clamp seat for limiting rotation of the clamp.

[0014] As the preferred embodiment of the present application, a detection control mechanism is further included, which comprises an electric control box and a detection piece electrically connected with the electric control box; the electric control box is arranged on one side of the base and is electrically connected with the driving mechanism and the clamping mechanism; the detection piece comprises a plurality of signal detection points arranged on the base and a position sensor arranged on the rotary table.

[0015] The present application has the following advantages: As a wind power blade overturning device, the present application realizes the vertical hoisting and storage of workpieces from the top of the device through the openable and closable annular frame formed by the rotary table and the cover, completely avoids the occupation of the side operation space of the device by the traditional side hoisting method, solves the problem of limited hoisting rope height, provides sufficient space for hoisting operation, and significantly improves the hoisting efficiency and safety performance.

[0016] The driving mechanism is designed in cooperation with the tensioning assembly, one set of driving system can control the overturning movement of the rotary table and the opening and closing movement of the cover at the same time, the transmission path is simplified, the occupied space of the device is reduced, and the transmission efficiency is improved; the tensioning assembly ensures that the transmission belt is always tensioned during the opening and closing process of the cover, avoids the relaxation of the transmission belt during shutdown, and enhances the system stability.

[0017] The clamping mechanism, through the guide part, the slidable bearing seat and the multi-degree-of-freedom adjustable clamping part, in combination with the elastic locking piece and the clamping force detection piece, can adapt to workpieces of different sizes, shapes and curved surface characteristics, realize flexible clamping and accurate control of clamping force, and effectively prevent damage to the workpiece caused by excessive clamping. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below in combination with the drawings and specific implementation methods.

[0019] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a sectional view structural schematic diagram of the present application; Figure 3 is an enlarged structural schematic diagram of A in the present application; Figure 2 Figure 4 is a structural schematic diagram of the clamping mechanism of the present application; Figure 5 is a sectional view structural schematic diagram of the clamping mechanism of the present application.

[0020] Explanation of reference signs: 1 base, 11 friction-reducing support assembly; 2 rotary table, 21 cover, 211 locking structure; ​3 driving mechanism, 31 transmission belt, 32 driving assembly, 33 tensioning assembly, 331 pulley set, 3311 sliding rail, 3312 first rotating shaft, 3313 first gear, 332 fixed wheel set, 3321 second rotating shaft, 3322 second gear, 3323 locking mechanism, 33231 ratchet wheel, 33232 pawl, 33233 second driving member; 4 clamping mechanism, 41 guide part, 411 guide base, 412 movement track, 413 guide wheel, 414 first locking member, 42 bearing seat, 43 clamping part, 431 outer box body, 432 inner box body, 4321 clamp seat, 4322 clamp, 4323 second locking member, 4324 hinged seat, 4325 third locking member, 433 third driving member; 5 detection control mechanism, 51 electric control box, 52 detection element, 521 signal detection point. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application, that is, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] The specific embodiments of the present application will be described below in conjunction with the drawings. Figures 1-5 A workpiece overturning device comprises: a base 1, on which a containing groove is formed for rotation of a rotating table 2; A rotating table 2 is arranged on the base 1 and provided with a cover 21, one end of which is hinged to the rotating table 2 and the other end is provided with a locking structure 211; the rotating table 2 can rotate horizontally on the base 1, the cover 21 is hinged to one end of the rotating table 2 and the other end is provided with the locking structure 211, the rotating table 2 and the cover 21 together form an openable annular frame, which is convenient for hoisting and accessing the workpiece from the top, replacing the traditional hoisting and accessing from the side of the rotating table 2 to block the side construction and equipment occupation position, at the same time, the opening of the top cover 21 can provide space for the lifting cable; the locking mechanism 211 can be a latch or an electromagnetic lock, so that the cover 21 can be automatically opened or closed, and the rotating table 2 is used to carry and hold the workpiece and is rotated to different angles during processing or detection, which is convenient for processing the workpiece.

[0024] A driving mechanism 3 includes a transmission belt 31 arranged around the rotating table 2 and the cover 21, a driving assembly 32 in transmission connection with the transmission belt 31, and a tensioning assembly 33 for keeping the transmission belt 31 tensioned during the opening and closing of the cover 21; the driving mechanism 3 includes the transmission belt 31, the driving assembly 32 and the tensioning assembly 33, the transmission belt 31 surrounds the rotating table 2 and the cover 21, the driving assembly 32 drives the transmission belt 31 through a belt wheel, thereby driving the rotating table 2 to rotate, and the tensioning assembly 33 is used to keep the transmission belt 31 always tensioned, which is used for the rotation of the rotating table 2 as a whole on the base 1 and the opening and closing of the cover 21 in the stopped state, preventing the transmission belt 31 from relaxing, so that the rotation of the rotating table 2 as a whole and the opening of the cover 21 share a set of driving, which simplifies the transmission path and reduces the space occupation; A clamping mechanism 4 includes clamping assemblies oppositely arranged on the base 1 and the cover 21, and a supporting assembly arranged on one side of the base 1 adjacent to the clamping assemblies; in this embodiment, two sets of clamping assemblies and one set of supporting assemblies clamp the workpiece at three different positions, the clamping assemblies and the supporting assembly each include a guide part 41, a bearing seat 42 slidably connected to the guide part 41, and a clamping part 43 telescopically installed on the bearing seat 42; the guide part 41 is formed with a moving track 412 for the sliding of the bearing seat 42 along the thickness direction of the rotating table 2; the clamping mechanism 4 includes oppositely arranged clamping assemblies and supporting assemblies for fixing and clamping the workpiece in the rotating table 2; the clamping assemblies and the supporting assemblies each have a guide part 41, a bearing seat 42 and a clamping part 43, the guide part 41 provides an arc-shaped moving track 412, so that the bearing seat 42 can slide along the arc-shaped guide track arranged in the thickness direction of the rotating table 2, realizing the adjustment of the position of the bearing seat 42 along the track, and the sliding of the clamping part 43 can adapt to the clamping of workpieces of different sizes or different clamping part 43 positions, avoiding the damage to the workpiece during clamping.

[0025] In this embodiment, please refer toFigures 1-2 As shown in the figure, the base 1 is provided with a friction-reducing supporting wheel set, one end of the transmission belt 31 is fixedly connected with the cover 21, and the other end is fixedly connected with the base 1; the friction-reducing supporting wheel set is arranged on the base 1 and in contact with the rotating table 2 to reduce friction and wear; in this embodiment, the transmission belt 31 is specifically a transmission chain, the transmission belt 31 is distributed around the rotating table 2 and the cover 21, one end of the transmission belt 31 is fixed to the cover 21, and the other end is fixed to the base 1; by driving the transmission belt 31, synchronous overturning rotation of the rotating table 2 and the cover 21 or opening and closing of the cover 21 on the rotating table 2 is realized.

[0026] Further in this embodiment, please refer to Figures 2-3 As shown in the figure, the tensioning assembly 33 includes a pulley set 331 and a fixed wheel set 332 which are in transmission connection with the transmission belt 31; the pulley set 331 includes a sliding rail 3311, a first rotating shaft 3312 which is in sliding cooperation with the sliding rail 3311 through a sliding seat, a first gear 3313 which is in rotation connection with the rotating shaft and is in mesh with the transmission belt 31, and a first driving member which is arranged on the base 1 and is used for driving the first rotating shaft 3312 to move; the tensioning assembly 33 maintains the tension of the transmission belt 31 through the pulley set 331 and the fixed wheel set 332; specifically, the first transmission section is between the fixed point of the transmission belt 33 on the cover 21 and the fixed wheel set 332, and the second transmission section is between the fixed wheel set 332 and the fixed point of the transmission belt on the rotating table 2; when the rotating table 2 and the cover 21 are integrally rotated on the base 1, the driving contour range of the first driving section does not change; when the cover 21 is opened, the driving contour range of the first driving section is increased by sliding the pulley set 331 to realize the opening of the cover on the rotating table; wherein the first driving member can be a pneumatic cylinder or a lead screw motor; the first driving member pushes the first rotating shaft 3312 to move along the sliding rail 3311, and the first rotating shaft 3312 moves while the first gear 3313 rotates relative to the first rotating shaft 3312 to realize the tensioning of the transmission belt 31 by adjusting the position of the first gear 3313.

[0027] In some embodiments, please refer to Figure 3 As shown in the figure, the fixed wheel set 332 includes a second rotating shaft 3321 which is in rotation connection with the base 1, and a second gear 3322 which is in synchronous rotation with the second rotating shaft 3321 and is in mesh with the transmission belt 31; the fixed wheel set 332 is further provided with a locking structure which is used for limiting the rotation of the second rotating shaft 3321; during the opening and closing process of the cover 21, the locking structure is used for locking the second gear 3322 to prevent the rotating table 2 from rotating, thereby ensuring that all driving forces are used for driving the cover 21 to open and close and guaranteeing the operation safety.

[0028] As one of the preferred solutions of the locking structure, please refer to Figure 3As shown, the locking structure can adopt a ratchet pawl structure, which includes a ratchet wheel 33231 arranged on the second rotating shaft 3321, a pawl 33232 arranged on the base 1 and matched with the ratchet wheel 33231, and a second driving member 33233 for driving the pawl 33232 to rotate. By limiting the forward rotation of the second gear 3322, the overall rotation of the base 1 is avoided.

[0029] As another preferred solution, the locking structure can also adopt a disc brake structure, which includes a brake disc fixedly arranged on the second rotating shaft 3321 and a brake arranged on the base 1 for clamping the brake disc.

[0030] In the embodiment, please refer to Figures 4-5 As shown, the guide part 41 includes a guide base 411 fixed to the base 1 or the cover 21, an arc-shaped moving track 412 formed inside the guide base 411, and a guide wheel 413 rotatably arranged at both ends of the bearing seat 42 and slidably matched with the moving track 412. A first locking member 414 is arranged between the base 1 or the cover 21 and the bearing seat 42, and includes a first connecting rod connected to the base 1 or the cover 21, a second connecting rod connected to the bearing seat 42, and a spring connected between the first connecting rod and the second connecting rod. The first locking member 414 is used to provide a locking pulling force for the sliding of the bearing seat 42 in the arc-shaped moving track 412, to adapt to the clamping of workpieces of different sizes and positions, and to avoid the back-and-forth sliding of the bearing seat 42 in the arc-shaped moving track 412 after clamping the workpiece.

[0031] Further, please refer to Figures 4-5 As shown, the clamping part 43 includes an outer box 431 fixedly connected to the bearing seat 42, an inner box 432 slidably connected in the outer box 431, and a third driving member 433 for driving the inner box 432 to extend and retract. The third driving member 433 can be preferably a screw rod transmission pair or an air cylinder. The inner box 432 is further provided with a clamping force detection member for detecting the clamping force applied by the third driving member 433 in real time. Through force feedback control, the clamping force is accurately managed to avoid damage to the blade due to excessive clamping. In the installation and measurement of the clamping force detection member, one end of the clamping force measurement member is connected to the extension end of the third driving member 433, and the other end is connected to the outer box 431. During the movement of the inner box 432, when the clamping part 43 contacts the workpiece and the third driving member 433 continuously drives the clamping part 43 to move, the clamping force on the workpiece is converted into the deformation of the strain gauge. The clamping force applied to the workpiece can be obtained through the deformation. This detection method is a conventional technical method, which will not be described here.

[0032] In some embodiments, please refer toFigures 4-5 As shown, the inner box body 432 is provided with a clamp seat 4321 through rotary support rotation connection, the clamp seat 4321 and the inner box body 432 are provided with the second locking member 4323 for limiting the rotation of the clamp seat 4321, the second locking member 4323 is same as the first locking member 414 in principle, the first connecting rod is connected on the clamp seat 4321, and the second connecting rod is connected on the clamp 4322;The both ends of the clamp seat 4321 are rotatably installed with the clamp 4322 through the hinged seat 4324, the clamp 4322 and the clamp seat 4321 are provided with the third locking member 4325 for limiting the rotation of the clamp 4322, the third locking member 4325 is same as the first locking member 414 and the second locking member 4323 in principle, the first connecting rod is connected on the clamp seat 4321, and the second connecting rod is connected on the clamp 4322, for limiting the free rotation of the clamp 4322 on the clamp seat 4321, the first locking member 414, the second locking member 4323 and the third locking member 4325 realize the multi-freedom degree adjustment of workpiece clamping, so that the contact surface of the clamp 4322 can better adapt to the complex curved surface of the workpiece, and optimal clamping effect is realized.

[0033] Further, please refer to Figures 1-3 As shown, the detection control mechanism 5 comprises an electric control box 51 and a detection member electrically connected with the electric control box 51;The electric control box 51 is arranged on one side of the base 1 and is electrically connected with the driving mechanism 3 and the clamping mechanism 4, so as to realize centralized control driving;The detection member comprises a plurality of signal detection points 421 arranged on the base 1 and a position sensor arranged on the rotary table 2, and the detection member is used for detecting the rotation angle of the rotary table 2, so as to realize accurate positioning of the overturning angle and interlocking control of action;In the position detection principle, the signal detection point is rotated to be close to the position sensor, the position sensor and the signal detection point 521 detect and sense and transmit the signal to the electric control box 51, so as to realize detection of the rotation angle of the rotary table 2.

[0034] The working principle of the present application is as follows: First, the device is started, the detection control mechanism 5 is self-checked, when the blade clamping is needed, the locking structure works, the second gear 3322 of the fixed wheel group 332 is locked, so as to prevent the rotation table 2 from rotating; at this time, the locking structure 211 is released from the limiting, the rear drive assembly 32 works, the cover body 21 is driven to rotate and open by the transmission belt 31 around the hinge point, because one end of the transmission belt 31 is fixed on the base 1, the other end is fixed on the cover body 21, and the transmission belt 31 is pulled by the tensioning assembly 33 to expand the transmission wheel outline and always keep the tensioning state, the power is effectively converted into the opening and closing action of the cover body 21, in the tensioning assembly 33, the first rotating shaft 3312 and the first gear 3313 move along the slide rail 3311, during the movement process, the first rotating shaft 3312 rotates relative to the first gear 3313, to effectively ensure the tensioning of the transmission belt 31. The cover body 21 opened at the top provides sufficient space for the lifting operation, the crane can vertically lift the workpiece from the top of the device and place it on the support assembly and the clamping assembly in the rotation table 2.

[0035] After the blade is in place, the drive assembly 32 is reversed, the cover body 21 is closed and locked with the rotation table 2 through the locking structure 211, forming a closed rigid frame. The third driving part 433 of each clamping part 43 is started, the inner box body 432 is pushed out, and the clamp 4322 contacts the surface of the blade. During clamping, the first locking part 414 can change the sliding track 412 of the bearing seat 42 and the clamping part 43 connected to the bearing seat 42, so that the contact surface of the clamping assembly and the support assembly is attached to the workpiece. Because the first locking part 414 is an elastic part, it has a certain tension on the sliding of the bearing seat 42, which can avoid the back and forth sliding after clamping the workpiece; the clamping force detection part monitors the clamping force in real time and feeds back the signal to the electric control box 51, when the force value reaches the preset safety range, the third driving part 433 stops working, realizing accurate and flexible clamping. In addition, the clamp seat 4321 and the clamp 4322 can be self-adapted to the blade curved surface by adjusting the second locking part 4323 and the third locking part 4325, so as to realize the optimal surface contact clamping.

[0036] When the blade needs to be turned over, the locking structure releases the locking of the second gear 3322. The drive assembly 32 is started again to drive the transmission. Because the rotation table 2 and the cover body 21 are locked as a whole at this time, and the antifriction bearing wheel group provides smooth rolling support, the transmission belt 31 drives the rotation table 2, the cover body 21 and the workpiece to rotate smoothly in the base 1. The signal detection point arranged on the base 1 and the position sensor on the rotation table 2 work cooperatively to detect the rotation angle in real time and transmit the signal to the electric control box 51. The electric control box 51 controls the drive assembly 32 to accurately turn over the blade and stop at the predetermined working angle, so as to carry out machining or detection operation.

[0037] In summary, the device realizes safe, efficient and accurate automatic overturning and positioning of the workpiece through synchronous cooperation of the driving mechanism 3, the locking mechanism 3323 and the clamping mechanism 4, and accurate feedback of the detection control mechanism 5.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The above is only an example and description of the structure of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined by the claims of the present application.

Claims

1. A wind turbine blade turning device, characterized in that The utility model relates to a rotary table locking mechanism, including: Base (1); Rotary table (2), turn over setting in base (1) on, it is equipped with cover (21) on it, the one end of cover (21) is hinged with rotary table (2), the other end is equipped with lock structure (211); Driving mechanism (3), including the transmission belt (31) that sets up around rotary table (2) and cover (21), with the drive assembly (32) of transmission belt (31) transmission connection, and the tensioning assembly (33) for the cover (21) opening and closing process keep transmission belt (31) tensioned; Clamping mechanism (4), including the clamping assembly that sets up oppositely on base (1) and cover (21), and the support assembly that is equipped with in base (1) adjacent clamping assembly one side;The clamping assembly and support assembly all include guide portion (41), the bearing seat (42) that slides on guide portion (41), and the clamping portion (43) that can be retractable installed on bearing seat (42);Guide portion (41) is formed with the movement track (412) for bearing seat (42) sliding along the thickness direction of rotary table (2).

2. A wind turbine blade turning device according to claim 1, wherein: Base (1) is rotatably provided with a friction-reducing support wheel set, one end of the transmission belt (31) is fixedly connected with the cover (21), and the other end is fixedly connected with the base (1).

3. A wind turbine blade turning device according to claim 1, wherein: The tensioning assembly (33) includes a pulley set (331) and a fixed wheel set (332) in transmission connection with the transmission belt (31); the pulley set (331) includes a sliding rail (3311), a first rotating shaft (3312) in sliding cooperation with the sliding rail (3311) through a sliding seat, a first gear (3313) in rotation connection with the first rotating shaft and in mesh with the transmission belt (31), and a first driving member provided on the base (1) for driving the first rotating shaft (3312) to move.

4. A wind turbine blade turning device according to claim 3, wherein The fixed wheel set (332) includes a second rotating shaft (3321) in rotation connection with the base (1), a second gear (3322) in synchronous rotation with the second rotating shaft (3321) and in mesh with the transmission belt (31), and a locking structure for limiting the rotation of the second rotating shaft (3321).

5. A wind turbine blade turning device according to claim 4, wherein The locking structure is: A ratchet and pawl structure including a ratchet (33231) provided on the second rotating shaft (3321), a pawl (33232) provided on the base (1) and cooperating with the ratchet (33231), and a second driving member (33233) for driving the pawl (33232) to rotate; Or a disc brake structure including a brake disc provided on the second rotating shaft (3321) and a brake provided on the base (1) and used for clamping the brake disc; When the cover (21) is opened and closed, the locking structure locks the second gear (3322) to prevent the rotary table (2) from rotating.

6. A wind turbine blade turning device according to claim 1, wherein: The guide part (41) comprises a guide base (411) fixed to the base (1) or the cover (21), the guide base (411) is formed with the movement track (412) therein, and the bearing seat (42) is rotatably provided with a guide wheel (413) in sliding fit with the movement track (412) at both ends; the first locking member (414) for limiting the sliding of the bearing seat (42) is arranged between the base (1) or the cover (21) and the bearing seat (42).

7. A wind turbine blade turning device according to claim 6, wherein: The clamping part (43) comprises an outer box body (431) fixedly connected with the bearing seat (42), an inner box body (432) slidingly connected in the outer box body (431), and a third driving member (433) for driving the inner box body (432) to extend and retract.

8. The wind power blade turning device according to claim 7, characterized in that: The third driving member (433) is a screw rod transmission member or a cylinder extension member; The inner box body (432) is provided with a clamping force detection member for detecting the clamping force applied by the third driving member (433) to the workpiece.

9. A wind turbine blade turning device according to claim 7, wherein: The inner box body (432) is rotatably connected with a clamp seat (4321) through rotary support, the second locking member (4323) for limiting the rotation of the clamp seat (4321) is arranged between the clamp seat (4321) and the inner box body (432), and the clamp (4322) is rotatably installed at both ends of the clamp seat (4321) through the hinged seat (4324), and the third locking member (4325) for limiting the rotation of the clamp (4322) is arranged between the clamp (4322) and the clamp seat (4321).

10. A wind turbine blade turning device according to claim 1, characterised in that: Further comprising a detection control mechanism (5), the detection control mechanism (5) comprises an electric control box (51) and a detection member electrically connected with the electric control box (51); the electric control box (51) is arranged on one side of the base (1) and is electrically connected with the driving mechanism (3) and the clamping mechanism (4); the detection member comprises a plurality of signal detection points (521) arranged on the base (1) and a position sensor arranged on the rotary table (2).

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