Turnover equipment for wind power variable pitch bearing assembly

Abstract

The utility model relates to a wind power variable pitch bearing assembly turning-over device which comprises a supporting base and a turning-over platform, a wind power variable pitch bearing is horizontally placed on the supporting base, the turning-over platform is installed on one side of the supporting base and comprises a turning-over base, a rotating arm and a buffering device, one side of the rotating arm clamps the wind power variable pitch bearing, and the other side of the rotating arm clamps the buffering device. The buffering device is installed on the portion, on the other side of the rotating arm, of the turnover base, and the rotating arm is attached to the buffering device after rotating. Compared with the prior art, the rotating arm clamps a part to rotate, then the rotating arm is attached to the buffering device to achieve stable turnover, and the turnover difficulty of a wind power variable pitch bearing or a large disc cover type part is reduced; the buffer is adopted to stabilize and adjust the speed, so that no extra impact load exists in the travelling crane, and the operation safety is improved; adjusting hole positions are formed in the buffer plate, the buffer support, the rotating arm and the clamping jaw, so that the universality of equipment is improved; the whole structure is detachable, the structure is simple, and replacement and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to large-scale disc cover parts installation equipment, in particular to a wind power variable pitch bearing assembly turning device. Background Art

[0002] Pitch bearings, also known as blade bearings, are installed between the blades and the hub of a wind turbine. They connect the rotor hub and the rotor blades, control the windward angle of the blades, control the rotor speed and the output power of the wind turbine. They are one of the core components of a wind turbine. Currently, the turning over of large pancake-shaped and annular parts such as wind turbine pitch bearings and hub flanges in the market basically adopts a double crane with double hooks, which also requires a relatively high level of skill for the operators.

[0003] After searching, the authorization announcement number CN209855967U discloses a pitch bearing turning over and positioning installation device, which specifically discloses: including an X-axis guide rail arranged on the base frame, an X-axis mounting seat arranged on the X-axis guide rail, an X-axis driving mechanism for driving the X-axis mounting seat to move, a Y-axis guide rail arranged on the X-axis mounting seat, a Y-axis frame arranged on the Y-axis guide rail, a Y-axis driving mechanism for driving the Y-axis frame to move, a Z-axis guide rail arranged on the Y-axis frame, a lifting seat arranged on the Z-axis guide rail, a Z-axis driving mechanism for driving the lifting seat to rise and fall, a turning frame rotatably installed on the lifting seat, a turning driving mechanism for driving the turning frame to turn, a pitch bearing support frame rotatably installed above the turning frame, and a turning driving mechanism for driving the pitch bearing support frame to rotate, and the left and right ends of the pitch bearing support frame are provided with electromagnets and positioning pins.

[0004] However, the prior art has a relatively complex structure and is only applicable to the alignment installation of the variable pitch bearing. Therefore, how to design a device that can conveniently turn over the wind turbine variable pitch bearing assembly is a technical problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a device for turning over a wind turbine pitch bearing assembly in order to overcome the defect of the prior art that the wind turbine pitch bearing assembly is difficult to turn over.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the utility model, a wind turbine pitch bearing assembly turning device is provided, which is used for a wind turbine pitch bearing. The device includes a supporting base and a turning platform. The wind turbine pitch bearing is horizontally placed on the supporting base. The turning platform is installed on one side of the supporting base, including a turning base, a rotating arm and a buffer device. One side of the rotating arm clamps the wind turbine pitch bearing, and one end is rotatably connected to the turning base. The buffer device is installed on the turning base on the other side of the rotating arm. After the rotating arm rotates, it fits with the buffer device.

[0008] As a preferred technical solution, the buffer device includes a buffer, a buffer plate and a buffer support. The two ends of the buffer are respectively connected to the buffer plate and the turning base through the buffer support. One end of the buffer plate is rotatably connected to the turning base. A buffer plate limit block is installed on the turning base, and a waist-shaped mounting hole is provided on the buffer support.

[0009] As a preferred technical solution, the buffer is a hydraulic cylinder or an electric cylinder.

[0010] As a preferred technical solution, the support base includes a support vertical beam, a connecting rod and a retaining frame, the connecting rod connects two support vertical beams or connects the support vertical beam and the turning platform, and the retaining frame is installed between two opposite support vertical beams.

[0011] As a preferred technical solution, the buffer plate is provided with one or more rows of first adjustment holes.

[0012] As a preferred technical solution, the rotating arm comprises a rotating arm and a clamping claw connected to each other, the rotating arm is provided with a row of second adjustment holes, and the clamping claw is provided with a waist-shaped adjustment hole.

[0013] As a preferred technical solution, the rotating arm and the turning base are connected via a pin, and a limiting bolt is installed at one end of the pin.

[0014] As a preferred technical solution, a forklift tube is installed on the turning base.

[0015] As a preferred technical solution, the support base and the turning platform are provided with a ground anchor interface at one end close to the ground.

[0016] As a preferred technical solution, the support base and the turning platform are detachable structures.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1) The utility model uses a rotating arm to clamp a wind turbine pitch bearing or a large disc cover and rotate it, and then engages with a buffer device to achieve a smooth turning over of the parts. Only a single-trolley and a single hook are required to achieve a turning over of more than 90°, which reduces the turning over difficulty of wind turbine pitch bearings or large disc cover parts and the requirements on the skill level of operators, and improves production and assembly efficiency;

[0019] 2) The utility model adopts a buffer to achieve stable and adjustable speed turning, and the buffer can be automatically reset, so that there is no additional impact load during driving, which improves the safety of operation;

[0020] 3) The utility model has a first adjustment hole on the buffer plate, which is convenient for adjusting the installation position of the buffer; a waist-shaped installation hole is provided on the buffer support, which is convenient for adjusting the position and angle of the buffer; a second adjustment hole is provided on the rotating arm, which can adjust the size according to the thickness of the supporting component, effectively improving the versatility of the equipment; a waist-shaped adjustment hole is provided on the claw, which can fine-tune the distance between the claw and the component, providing favorable conditions for the product to be unhooked after turning over;

[0021] 4) The support base of the utility model can also be used to place wind turbine pitch bearings or large disk cover parts, and can conveniently assemble bearings, pitch flanges, webs, gear boxes, electrical cabinets and other parts thereon, changing the previous assembly method of vertical lifting one by one, and greatly facilitating the assembly of web surface parts;

[0022] 5) The utility model is a detachable structure as a whole, with a simple structure, and each part is easy to disassemble and assemble, convenient for replacement and maintenance, thus reducing transportation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a wind turbine pitch bearing assembly turning device of the utility model;

[0024] Figure 2 This is a schematic diagram of the utility model for clamping a first large pancake-shaped component;

[0025] Figure 3 This is a schematic diagram of the utility model for clamping a second large pancake-shaped component;

[0026] Figure 4 This is a schematic diagram of the turning platform structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the rotating arm of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the buffer of the utility model;

[0029] The numbers in the figure show:

[0030] 10. Support vertical beam, 11. Connecting rod, 12. Retaining frame, 2. Turning platform, 20. Turning base, 200. Forklift tube, 201. Buffer plate limit block, 21. Rotating arm, 210. Swivel arm, 2100. Second adjustment hole, 211. Claw, 2110. Waist-shaped adjustment hole, 220. Buffer, 221. Buffer plate, 2210. First adjustment hole, 222. Buffer support, 23. Pin shaft, 230. Limit bolt, 3. Large pancake-shaped parts, 4. Ground anchor interface, 5. Lifting beam. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] like Figure 1 As shown, the utility model proposes a wind turbine pitch bearing assembly turning device, including a support base and a turning platform 2. The support base and the turning platform 2 are both detachable structures. The end of the support base and the turning platform 2 close to the ground is provided with a ground anchor interface 4, which effectively prevents the product from sliding along the tooling body due to eccentricity and impact force generated during the turning process.

[0033] The support base includes a support vertical beam 10, a connecting rod 11 and a retaining frame 12. The support vertical beam 10 and the connecting rod 11 are connected in sequence to form a support base body. Figure 1 As shown, three supporting vertical beams 10 are connected by connecting rods 11 to form half of the supporting base, two halves of the supporting base are connected by retaining frames 12, and one side of the supporting base is connected to the turning platform 2 through the connecting rods 11. Each supporting vertical beam 10 is provided with a ground anchor interface 4 at one end close to the ground, so that the entire supporting base can be firmly fixed on the ground, and a supporting plane is provided at the end away from the ground for supporting parts, so that operations such as assembly and wiring can be completed on the working plane.

[0034] like Figure 4 As shown, the turning platform 2 includes a turning base 20, a rotating arm 21 and a buffer device.

[0035] The turning base 20 is equipped with a forklift tube 200 and a buffer plate stopper 201. The forklift tube 200 facilitates forklift transportation and facilitates the transportation and storage of the equipment. When the buffer plate 221 rotates to a certain position, it is limited by the buffer plate stopper 201. The end close to the ground is provided with a ground anchor interface 4. The rotating arm 21 is connected to the turning base 20 through a pin 23. The end of the pin 23 is provided with a threaded hole connected to a stopper bolt 230 to prevent the pin 23 from falling off. The rotating arm 21 serves as the fulcrum and rotation center of the turning parts. After the rotating arm 21 rotates, it fits with the buffer device.

[0036] like Figure 5 As shown, the rotating arm 21 includes a rotating arm 210 and a claw 211 which are interconnected by fasteners. The rotating arm 210 is provided with a row of second adjustment holes 2100, the size of which can be adjusted according to the thickness of the supporting component, effectively improving the versatility of the equipment; the claw 211 is provided with a waist-shaped adjustment hole 2110, which can fine-tune the distance between the component and the claw 211, and also provides favorable conditions for the unhooking of the product after turning over.

[0037] The buffer device includes a buffer 220, a buffer plate 221 and a buffer support 222. The two ends of the buffer 220 are connected to the buffer plate 221 and the turning base 20 respectively through the buffer support 222. The buffer plate 221 is connected to the turning base 20 through a pin 23. The end of the pin 23 is provided with a threaded hole connected to a limit bolt 230 to prevent the pin 23 from falling off. The buffer plate 221 is provided with one or more rows of first adjustment holes 2210 to facilitate the installation position of the large-size adjustment buffer 220. The buffer support 222 is provided with a waist-shaped installation hole to facilitate the position and angle adjustment of the buffer 220.

[0038] like Figure 6 As shown, the buffer 220 is a hydraulic cylinder or an electric cylinder or other device that can achieve an equivalent effect, and no external hydraulic oil circuit or circuit is required when in use. The buffer 220 is provided with a valve for adjusting the flow rate, which can slowly release the gravity load of the entire turning system, and finally the whole falls smoothly on the buffer plate limit block 201 of the turning base 20 along with the buffer plate 221. Finally, the internal stress of the entire system is released, which provides a strong condition for the smooth lifting of the system in the next step, and reduces the possible safety risks in the turning process. The buffer 220 can effectively absorb the energy generated by the impact load. In order to achieve the best buffering effect, it can adjust the buffer flow rate and the time of turning over and falling, to ensure that the turning collar component can turn over smoothly. The buffer 220 can automatically reset without human operation, effectively eliminating the safety risks that may be caused by human operation.

[0039] The utility model has the functions of assembly and turning over, and can conveniently assemble bearings, pitch flanges, webs, gear boxes, electrical cabinets and other parts on it, changing the previous assembly method of vertical lifting one by one, greatly facilitating the assembly of web surface parts; it can also turn over large shaft diameter disc parts such as pitch flanges and pitch bearings of different diameters and thicknesses separately; it replaces the traditional double-hook turning over of large disc parts, reduces the occupation of the crane, and reduces the occupation time of the crane from two cranes to one, which improves the assembly efficiency; the device can turn over smoothly to more than 90°, eliminating the impact on the crane during the turning over process and the safety problems of personnel caused by the large swing of parts. The utility model adopts a detachable design, which effectively solves the problems of excessive width in transportation and large storage area, and reduces transportation costs and storage costs. The entire device has been tested to be stable and reliable, solving the limitation of insufficient tonnage of small cranes.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A wind turbine pitch bearing assembly turning device, used for a wind turbine pitch bearing, characterized in that: The device comprises a support base and a turning platform (2), wherein the wind turbine pitch bearing is horizontally placed on the support base, and the turning platform (2) is mounted on one side of the support base and comprises a turning base (20), a rotating arm (21) and a buffer device, wherein one side of the rotating arm (21) clamps the wind turbine pitch bearing and one end is rotatably connected to the turning base (20), and the buffer device is mounted on the turning base (20) on the other side of the rotating arm (21), and the rotating arm (21) fits with the buffer device after rotation.

2. A wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The buffer device comprises a buffer (220), a buffer plate (221) and a buffer support (222); two ends of the buffer (220) are respectively connected to the buffer plate (221) and the turning base (20) via the buffer support (222); one end of the buffer plate (221) is rotatably connected to the turning base (20); a buffer plate limit block (201) is installed on the turning base (20); and a waist-shaped mounting hole is provided on the buffer support (222).

3. A wind turbine pitch bearing assembly turning device according to claim 2, characterized in that: The buffer (220) is a hydraulic cylinder or an electric cylinder.

4. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The support base comprises a support vertical beam (10), a connecting rod (11) and a retaining frame (12); the connecting rod (11) connects two support vertical beams (10) or connects the support vertical beam (10) and the turning platform (2); and the retaining frame (12) is installed between two opposing support vertical beams (10).

5. The wind turbine pitch bearing assembly turning device according to claim 2, characterized in that: The buffer plate (221) is provided with one or more rows of first adjustment holes (2210).

6. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The rotating arm (21) comprises a rotating arm (210) and a clamping claw (211) which are connected to each other; the rotating arm (210) is provided with a row of second adjustment holes (2100); and the clamping claw (211) is provided with a waist-shaped adjustment hole (2110).

7. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The rotating arm (21) and the turning base (20) are connected via a pin shaft (23), and a limiting bolt (230) is installed at one end of the pin shaft (23).

8. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: A forklift tube (200) is installed on the turning base (20).

9. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The support base and the turning platform (2) are provided with a ground anchor interface (4) at one end close to the ground.

10. The wind turbine pitch bearing assembly turning device according to claim 1, characterized in that: The support base and the turning platform (2) are detachable structures.

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