Lifting appliance for preventing sudden strong wind from influencing fan lifting

Abstract

The utility model discloses a lifting appliance for preventing sudden strong wind from influencing fan lifting, which comprises a plurality of connecting seats, a lifting ring, a mooring rope and a lifting seat, the outer sides of the plurality of connecting seats are provided with hanging ropes, the bottoms of the plurality of hanging ropes are connected with a protective ring, and the peripheral side of the protective ring is provided with a plurality of pull ropes which are uniformly arranged; the tower further comprises a plurality of take-up and pay-off reel devices which are evenly arranged on the peripheral side of the tower base, and take-up and pay-off reels of the take-up and pay-off reel devices are connected with the pull ropes. The utility model relates to a lifting appliance for preventing sudden strong wind from influencing fan lifting, which belongs to the technical field of fan equipment lifting and is characterized in that a retainer sleeved at the bottom of a tower drum is arranged on the lifting appliance, a plurality of take-up and pay-off reel devices are arranged on the periphery of a tower seat, and the retainer is pulled by a pull rope to apply acting force to the bottom of the tower drum to correct the position of the tower drum. The tower drum is prevented from swinging greatly, the influence of sudden strong wind on hoisting of the fan tower drum can be effectively reduced and prevented, and the safety of hoisting operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting of fan equipment, and more specifically, it relates to a sling for preventing the influence of sudden strong wind on the hoisting of a fan. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. First, the kinetic energy of wind is converted into mechanical kinetic energy, and then the mechanical energy is converted into electrical kinetic energy. This is wind power generation. The principle of wind power generation is to use the wind to drive the rotation of the windmill blades, and then through a speed increaser to increase the rotation speed to drive the generator to generate electricity. According to the current windmill technology, when the wind speed is about three meters per second, that is, at a gentle breeze level, power generation can begin. Wind power generation is forming a boom in the world. During the installation process of wind power generation equipment, it is usually necessary to hoist the tower barrel of the wind power generation equipment. When the existing hoisting tools for wind power generation equipment are used to hoist the tower barrel, in the face of sudden strong wind, the tower barrel is prone to large swings, making it difficult to align the tower barrel with the tower base for installation. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a sling for preventing the influence of sudden strong wind on the hoisting of a fan in view of the deficiencies of the prior art.

[0004] To achieve the above object, the utility model discloses a sling for preventing the influence of sudden strong wind on the hoisting of a fan, which includes a plurality of connecting seats bolted to the end face of the tower barrel, a lifting ring arranged on the connecting seat, a cable connected to the lifting ring, and a lifting seat connected to the cable. A hanging rope is arranged on the outer side of the plurality of connecting seats, and a retaining ring capable of sleeving around the tower barrel is connected to the bottom of the plurality of hanging ropes. A plurality of uniformly arranged stay ropes are arranged on the circumferential side of the retaining ring; It also includes a plurality of uniformly arranged wire winding and unwinding reel devices arranged on the circumferential side of the tower base, and the wire winding and unwinding reel of the wire winding and unwinding reel device is connected to the stay rope.

[0005] Preferably, a plurality of uniformly arranged spring telescopic rods are arranged on the retaining ring, the telescopic direction of each spring telescopic rod coincides with the radial direction pointing to the retaining ring, and a roller is arranged at the inner end of the spring telescopic rod.

[0006] Preferably, an arc-shaped groove that fits the outer cylindrical surface of the tower barrel is arranged on the outer circumferential surface of the roller.

[0007] Preferably, the wire winding and unwinding reel device includes a base, a drum bracket arranged on the base, a wire winding and unwinding reel arranged on the drum bracket, and a forward and reverse drive device for driving the wire winding and unwinding reel to rotate. The base is fixedly connected to the ground through a ground nail, the drum bracket is fixedly installed on the base, and the wire winding and unwinding reel is rotatably installed at one end of the base through a bearing.

[0008] Preferably, the forward and reverse drive device includes a worm and worm gear transmission mechanism provided on the base, a servo motor for driving the rotation of the worm of the worm and worm gear transmission mechanism, and a gearbox. The input end of the gearbox is connected to the worm shaft of the worm and worm gear transmission mechanism, and the output end of the gearbox is connected to the rotating shaft of the wire winding and unwinding reel.

[0009] Preferably, a signal gear disc is provided on the rotating shaft of the wire winding and unwinding reel, and an angular displacement encoder adapted to the signal gear disc is provided on the drum bracket.

[0010] Preferably, a wire guide frame is provided at the other end of the base. Two parallel wire guide wheels are rotatably mounted on the wire guide frame through bearings. The pulling rope passes around the two wire guide wheels and then is connected to the wire winding and unwinding reel.

[0011] Preferably, a wind direction sensor and a control panel are provided on the wire guide frame. The wind direction sensor is electrically connected to the control panel, the servo motor is electrically connected to the control panel, and a display screen is provided on the control panel.

[0012] Preferably, a guide groove is provided on the outer side of the connecting seat. The hanging rope is arranged through the guide groove, and a limit block adapted to the top surface of the guide groove is provided at the top end of the hanging rope.

[0013] Preferably, a damping pressure block abutting against the hanging rope is provided in the guide groove. A screw rod is provided on the groove wall of the guide groove. The inner end of the screw rod is connected to the damping pressure block, and the damping pressure block is a rubber block structure threadedly connected to the screw rod.

[0014] The beneficial effects of the present utility model compared with the prior art are as follows:

[0015] The lifting tool for preventing the influence of sudden strong wind on the lifting of the wind turbine of the present utility model is provided with a protective ring sleeved on the bottom of the tower barrel. During the lifting process of the tower barrel, if strong wind in a certain direction is encountered, several wire winding and unwinding reel devices around the tower base will wind and unwind the pulling ropes in a certain direction according to the wind direction. By pulling the protective ring with the pulling ropes, the protective ring applies a force to the bottom of the tower barrel to correct the position of the tower barrel and prevent the tower barrel from swinging greatly, which can effectively reduce the influence of sudden strong wind on the lifting of the wind turbine tower barrel and ensure the safety of the lifting operation. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of the lifting tool for preventing the influence of sudden strong wind on the lifting of the wind turbine of the present utility model;

[0017] Figure 2 It is a front view of the structure of the lifting tool for preventing the influence of sudden strong wind on the lifting of the wind turbine of the present utility model;

[0018] Figure 3Structural sectional view of the lifting tool for preventing the impact of sudden strong winds on the lifting of wind turbines according to the present utility model;

[0019] Figure 4 is Figure 1 Schematic enlarged view of the structure at position A in

[0020] Figure 5 is Figure 1 Schematic enlarged view of the structure at position B in

[0021] Wherein: 1 - tower barrel, 2 - connecting seat, 3 - lifting ring, 4 - cable, 5 - lifting seat, 6 - hanging rope, 7 - guard ring, 8 - pulling rope, 9 - tower base, 10 - wire winding and unwinding reel device, 11 - wire winding and unwinding reel, 12 - spring telescopic rod, 13 - roller, 15 - arc-shaped groove, 16 - base, 17 - roller bracket, 18 - forward and reverse drive device, 19 - worm and worm gear transmission mechanism, 20 - servo motor, 21 - gearbox, 22 - signal gear disk, 23 - angular displacement encoder, 24 - wire guide frame, 25 - wire guide wheel, 26 - wind direction sensor, 27 - control panel, 28 - guide groove, 29 - limit block, 30 - damping pressure block, 31 - screw. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0024] The specific implementation mode of the present utility model is as follows:

[0025] Refer to Figures 1-5 , a lifting tool for preventing the impact of sudden strong winds on the lifting of wind turbines according to the present utility model, includes a plurality of connecting seats 2 connected to the end face of the tower barrel 1 by bolts, a lifting ring 3 provided on the connecting seat 2, a cable 4 connected to the lifting ring 3, and a lifting seat 5 connected to the cable 4. The crawler crane is connected to the lifting seat 5 through a lifting rope. A hanging rope 6 is provided on the outer side of the plurality of connecting seats 2. The bottom of the plurality of hanging ropes 6 is connected with a guard ring 7 that can be sleeved around the periphery of the tower barrel 1. A plurality of uniformly arranged pulling ropes 8 are provided on the circumferential side of the guard ring 7; It also includes a plurality of uniformly arranged wire winding and unwinding reel devices 10 provided on the circumferential side of the tower base 9. The wire winding and unwinding reel 11 of the wire winding and unwinding reel device 10 is connected to the pulling rope 8.

[0026] The sling for preventing the sudden strong wind from affecting the hoisting of the fan of the present utility model is composed of a connecting seat 2, a lifting ring 3, a cable 4, a lifting seat 5 and a lifting rope, which forms a sling for hoisting the tower barrel. The connecting seat 2 is fixed by connecting with the bolt hole at the top of the tower barrel through bolts. After the crawler crane hoists the lifting seat 5, the connecting seat 2 and the tower barrel 1 are hoisted through the cable 4. The connecting seat 2 is connected with a protective ring 7 through a hanging rope 6, and the protective ring 7 can slide to the bottom of the tower barrel 1. If a strong wind in a certain direction is encountered during the hoisting process of the tower barrel 1, several wire winding and unwinding reel devices 10 around the tower base 9 will wind and unwind the pulling rope 8 in a certain direction according to the wind direction, and pull the protective ring 7 through the pulling rope 8, so that the protective ring 7 exerts a force on the bottom of the tower barrel 1, corrects the position of the tower barrel 1, and prevents the tower barrel 1 from swinging greatly, which can effectively reduce the influence of sudden strong wind on the hoisting of the fan tower barrel and ensure the safety of the hoisting operation.

[0027] A preferred implementation manner of this embodiment is that a plurality of uniformly arranged spring telescopic rods 12 are provided on the protective ring 7, and the telescopic directions of the spring telescopic rods 12 coincide with the radial direction pointing to the protective ring 7. A roller 13 is provided at the inner end of the spring telescopic rod 12. In this embodiment, the protective ring 7 exerts a force on the outer surface of the tower barrel 1 through the spring telescopic rod 12 and the roller 13. The setting of the spring telescopic rod 12 plays a buffering role, and the roller 13 of the spring telescopic rod 12 can expand and contract with the telescopic rod, which is convenient for the protective ring 7 to move to the bottom of the tower barrel 1.

[0028] A preferred implementation manner of this embodiment is that an arc-shaped groove 15 that fits the outer cylindrical surface of the tower barrel 1 is provided on the outer circumferential surface of the roller 13. The setting of the arc-shaped groove 15 enables the roller 13 to closely fit the outer cylindrical surface of the tower barrel 1, so that the roller 13 can exert a uniform force on the tower barrel 1.

[0029] A preferred implementation manner of this embodiment is that the wire winding and unwinding reel device 10 includes a base 16, a drum bracket 17 provided on the base 16, a wire winding and unwinding reel 11 provided on the drum bracket 17, and a forward and reverse drive device 18 for driving the wire winding and unwinding reel 11 to rotate. The base 16 is fixedly connected to the ground through ground nails, the drum bracket 17 is fixedly installed on the base 16, and the wire winding and unwinding reel 11 is rotatably installed at one end of the base 16 through a bearing. In this embodiment, the forward and reverse drive device 18 can drive the wire winding and unwinding reel 11 to rotate forward and reverse, adjust the length of the pulling rope 8, thereby adjusting the position of the tower barrel 1, limiting the bottom of the tower barrel 1, and preventing the tower barrel 1 from swinging greatly.

[0030] A preferred embodiment of this embodiment is that the forward and reverse driving device 18 includes a worm and worm gear transmission mechanism 19 provided on the base 16, a servo motor 20 for driving the rotation of the worm of the worm and worm gear transmission mechanism 19, and a gearbox 21. The input end of the gearbox 21 is connected to the worm shaft of the worm and worm gear transmission mechanism 19, and the output end of the gearbox 21 is connected to the rotating shaft of the wire winding and unwinding reel 11. In this embodiment, the worm and worm gear transmission mechanism 19 drives the rotation of the gearbox 21 and the wire winding and unwinding reel 11. By utilizing the transmission characteristics of the worm and the worm gear, a locking function can be achieved.

[0031] A preferred embodiment of this embodiment is that a signal gear disk 22 is provided on the rotating shaft of the wire winding and unwinding reel 11, and an angular displacement encoder 23 adapted to the signal gear disk 22 is provided on the roller bracket 17. In this embodiment, the rotation angle of the wire winding and unwinding reel 11 is monitored by the angular displacement encoder 23.

[0032] A preferred embodiment of this embodiment is that at the other end of the base 16, a wire guide frame 24 is provided. Two parallel wire guide wheels 25 are rotatably mounted on the wire guide frame 24 through bearings. The pull rope 8 is wound around the two wire guide wheels 25 and then connected to the wire winding and unwinding reel 11. The two wire guide wheels 25 play a role in guiding the pull rope 8.

[0033] A preferred embodiment of this embodiment is that a wind direction sensor 26 and a control panel 27 are provided on the wire guide frame 24. The wind direction sensor 26 is electrically connected to the control panel 27, the servo motor 20 is electrically connected to the control panel 27, and a display screen is provided on the control panel 27. The control panel 27 is electrically connected to the angular displacement encoder 23. The staff can view the wind direction data and the number of rotations of the wire winding and unwinding reel 11 displayed on the display screen, control the forward or reverse rotation of the servo motor 20, and control the rotation angle of the servo motor 20 driving the wire winding and unwinding reel 11.

[0034] A preferred embodiment of this embodiment is that a guide groove 28 is provided on the outer side of the connecting seat 2. The hanging rope 6 is arranged through the guide groove 28, and a limit block 29 adapted to the top surface of the guide groove 28 is provided at the top end of the hanging rope 6. The guide groove 28 guides and limits the pull rope 6.

[0035] A preferred embodiment of this embodiment is that a damping pressure block 30 abuting against the hanging rope 6 is provided in the guide groove 28. A screw rod 31 is provided on the groove wall of the guide groove 28. The inner end of the screw rod 31 is connected to the damping pressure block 30. The damping pressure block 30 is a rubber block structure threadedly connected to the screw rod 31. The damping pressure block 30 can press the pull rope 6, and the pressing force of the damping pressure block 30 on the hanging rope 6 is adjusted through the screw rod 31 to limit the descending speed of the hanging rope 6.

[0036] Working principle:

[0037] During specific use, the crawler crane hoists the connecting seat 2 and the tower barrel 1, and the retaining ring 7 can slide to the bottom of the tower barrel 1. If strong wind in a certain direction is encountered during the hoisting process of the tower barrel 1, the control panels 27 of several wire winding and unwinding reel devices 10 around the tower base 9 will control the operation of the servo motor 20 according to the wind direction, wind in and out the pulling rope 8 in a certain direction. By pulling the retaining ring 7 with the pulling rope 8, the retaining ring 7 applies a force to the bottom of the tower barrel 1 to correct the position of the tower barrel 1 and prevent the tower barrel 1 from swinging significantly, which can effectively reduce and prevent the impact of sudden strong wind on the hoisting of the wind turbine tower barrel and ensure the safety of the hoisting operation.

[0038] The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A lifting tool for preventing the influence of sudden strong winds on the hoisting of a wind turbine, comprising a plurality of connecting seats (2) bolted to the end face of a tower barrel (1), a lifting ring (3) arranged on the connecting seat (2), a cable (4) connected to the lifting ring (3), and a lifting seat (5) connected to the cable (4), characterized in that, A lanyard (6) is provided on the outer side of multiple said connecting seats (2). The bottoms of multiple said lanyards (6) are connected to a retaining ring (7) that can be sleeved around the periphery of the tower barrel (1). Multiple uniformly arranged stay ropes (8) are provided on the circumferential side of the retaining ring (7); further included are multiple uniformly arranged wire winding and unwinding reel devices (10) provided on the circumferential side of the tower base (9), and the wire winding and unwinding reel (11) of the wire winding and unwinding reel device (10) is connected to the stay rope (8).

2. The spreader for preventing the influence of sudden strong wind on the hoisting of a wind turbine according to claim 1, wherein Multiple uniformly arranged spring telescopic rods (12) are provided on the retaining ring (7). The telescopic directions of each of the spring telescopic rods (12) coincide with the radial direction pointing to the retaining ring (7). A roller (13) is provided at the inner end of the spring telescopic rod (12).

3. The spreader for preventing the influence of sudden strong wind on the hoisting of the fan according to claim 2, wherein, An arc-shaped groove (15) that fits the outer cylindrical surface of the tower barrel (1) is provided on the outer circumferential surface of the roller (13).

4. A sling for preventing the impact of sudden strong winds on the hoisting of a wind turbine according to claim 1 or 2 or 3, characterized in that, The wire winding and unwinding reel device (10) includes a base (16), a drum support (17) provided on the base (16), a wire winding and unwinding reel (11) provided on the drum support (17), and a forward and reverse drive device (18) for driving the wire winding and unwinding reel (11) to rotate. The base (16) is fixedly connected to the ground through a ground nail. The drum support (17) is fixedly installed on the base (16). The wire winding and unwinding reel (11) is rotatably installed at one end of the base (16) through a bearing.

5. A lifting tool for preventing the impact of sudden strong winds on the lifting of a fan according to claim 4, characterized in that, The forward and reverse drive device (18) includes a worm and gear transmission mechanism (19) provided on the base (16), a servo motor (20) for driving the worm of the worm and gear transmission mechanism (19) to rotate, and a gearbox (21). The input end of the gearbox (21) is connected to the worm shaft of the worm and gear transmission mechanism (19). The output end of the gearbox (21) is connected to the rotating shaft of the wire winding and unwinding reel (11).

6. A spreader for preventing the influence of sudden strong winds on the hoisting of a fan according to claim 5, characterized in that, A signal gear disk (22) is provided on the rotating shaft of the wire winding and unwinding reel (11). An angular displacement encoder (23) adapted to the signal gear disk (22) is provided on the drum support (17).

7. A spreader for preventing the influence of sudden strong winds on the hoisting of a wind turbine according to claim 6, characterized in that, A wire guide frame (24) is provided at the other end of the base (16). Two parallel wire guide wheels (25) are rotatably installed on the wire guide frame (24) through bearings. The stay rope (8) is connected to the wire winding and unwinding reel (11) after passing around the two wire guide wheels (25).

8. A sling for preventing the influence of sudden strong winds on the hoisting of a wind turbine according to claim 7, characterized in that, A wind direction sensor (26) and a control panel (27) are provided on the wire guide frame (24). The wind direction sensor (26) is electrically connected to the control panel (27). The servo motor (20) is electrically connected to the control panel (27). A display screen is provided on the control panel (27).

9. A sling for preventing the influence of sudden strong winds on the hoisting of a wind turbine according to claim 7, characterized in that, A guide groove (28) is provided on the outer side of the connecting seat (2). The lanyard (6) is arranged through the guide groove (28). A limit block (29) adapted to the top surface of the guide groove (28) is provided at the top end of the lanyard (6).

10. A sling for preventing the influence of sudden strong winds on the hoisting of a fan according to claim 9, characterized in that, A damping pressing block (30) which abuts against the hanging rope (6) is arranged in the guiding groove (28), a screw rod (31) is arranged on the groove wall of the guiding groove (28), the inner end of the screw rod (31) is connected with the damping pressing block (30), and the damping pressing block (30) is a rubber block structure which is in threaded connection with the screw rod (31).

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