Auxiliary device for hoisting blades of wind driven generator

Abstract

The utility model relates to the technical field of blade hoisting devices, and discloses a wind driven generator blade hoisting auxiliary device which comprises a plate body, two sliding holes are formed in each of the two sides of the plate body, sliding rods are slidably connected into the two sliding holes, a cross beam is fixedly connected to the other ends of the sliding rods, a penetrating opening is formed in one side of the plate body, and a through hole is formed in the other side of the plate body. Two adjusting racks are slidably connected into the penetrating opening, one end of one rack is fixedly connected to one side of the plate body, the other ends of the two racks are fixedly connected with limiting blocks, a rotating handle is rotated, the rotating handle drives a rotating disc to rotate, the rotating disc drives a gear to rotate, and the limiting blocks are fixedly connected to the limiting blocks. The gear drives the two racks to move along the inner wall of the penetrating opening of the plate body at the same time, the two racks drive the two cross beams to move correspondingly and get close to or get away from each other under the combined action of the sliding rods, and therefore dynamic size adjustment is conducted when blades of different sizes are hoisted, and the applicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of blade hoisting devices, and in particular to a wind turbine blade hoisting auxiliary device. Background Art

[0002] A wind turbine is an electric device that converts wind energy into mechanical work, which then drives the rotor to rotate and finally outputs alternating current. Its core components mainly include wind rotors, generators (including devices), stabilisers (tail fins), towers, speed limit safety mechanisms and energy storage devices. When installing it, the towers, stabilisers, generators, wind rotors, speed limit safety mechanisms and energy storage devices need to be installed in sequence. When installing the wind rotor, the blades of the wind rotor need to be hoisted and installed, and hoisting auxiliary devices are required during hoisting and installation.

[0003] When lifting blades, first fix the lifting equipment and ropes on the blades to ensure that the connection is firm and reliable, and then connect the lifting equipment to a large crane or hoist to prepare for lifting. In the prior art, the size of the lifting equipment is made of multiple high-strength steel pipes welded together, and the size is fixed. When lifting blades of different sizes, it is necessary to replace the lifting equipment of the corresponding size, which has the problem of poor applicability of the device. Utility Model Content

[0004] In order to solve the problem, the present application provides a wind turbine blade hoisting auxiliary device.

[0005] The present application provides a wind turbine blade hoisting auxiliary device that adopts the following technical solution:

[0006] A wind turbine blade lifting auxiliary device comprises a plate body, two sliding holes are provided on both sides of the plate body, sliding rods are slidably connected in the two sliding holes, and the other ends of the sliding rods are fixedly connected to a crossbeam, a through opening is provided on one side of the plate body, two adjustment racks are slidably connected in the through opening, one end of one of the racks is fixedly connected to one side of the plate body, the other ends of the two racks are fixedly connected to a limiting block, and one end of the other rack is fixedly connected to one side of the other plate body.

[0007] Preferably, the inner bottom wall of the through-hole is rotatably connected with a gear, the gear is meshed with the two racks, and the inner top wall of the through-hole is provided with a rotating hole, and a rotating disk is rotatably connected in the rotating hole.

[0008] Preferably, the inner wall of the crossbeam forms two chambers, the inner walls of the two chambers are slidably connected with adjustment blocks, the inner bottom walls of the two chambers are provided with avoidance grooves, and the lower sides of the two adjustment blocks are fixedly connected with hooks.

[0009] Preferably, a through hole is opened on one side of the crossbeam, a bidirectional screw is rotatably connected in the through hole, the two adjustment blocks are both threadedly connected to the threaded area on the surface of the bidirectional screw, and one end of the bidirectional screw is fixedly connected to a rotating block.

[0010] Preferably, a rotating handle is rotatably connected to the upper side of the rotating disk, a first-level sliding hole is opened on the upper side of the rotating disk, a first-level inserting strip is slidably connected in the first-level sliding hole, a plurality of first-level inserting holes are opened on the upper side of the plate body, and the first-level inserting strip is adapted to the plurality of first-level inserting holes.

[0011] Preferably, an adjustment handle is rotatably connected to one side of the rotating block, a secondary sliding hole is opened on one side of the adjusting block, a secondary inserting strip is slidably connected in the secondary sliding hole, a plurality of secondary inserting holes are opened on one side of the crossbeam, and the secondary inserting strip is adapted to the plurality of secondary inserting holes.

[0012] Preferably, two lifting ears are fixedly connected to the upper side of the crossbeam.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. In the utility model, by rotating the rotating handle, the rotating handle drives the rotating disk to rotate, the rotating disk drives the gear to rotate, and the gear drives the two racks to move along the inner wall of the through hole of the plate body at the same time. The two racks respectively drive the two crossbeams to move and move closer to or away from each other under the joint action of the slide rod, so as to dynamically adjust the size of blades of different sizes when hoisting, thereby improving the applicability of the device;

[0015] 2. In the utility model, by rotating the adjusting handle, the adjusting handle drives the rotating block to rotate, the rotating block drives the bidirectional screw to rotate, the bidirectional screw drives the two adjusting blocks to slide along the inner wall of the chamber, and the two adjusting blocks respectively drive the two hooks to move closer or farther away from each other, so that when hoisting objects of different sizes, the distance between the hooks can be dynamically adjusted for hoisting, further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0017] Figure 2 is a schematic diagram of the cross-sectional structure of a plate body of an embodiment of the application;

[0018] Figure 3 is a schematic diagram of the crossbeam structure of an embodiment of the application;

[0019] Figure 4 It is a schematic diagram of a rotating disk and its related structures according to an embodiment of the application.

[0020] Explanation of the reference numerals: 1. plate; 2. slide bar; 3. crossbeam; 4. adjustment rack; 5. gear; 6. limit block; 7. adjustment block; 8. bidirectional screw rod; 9. hook; 10. rotating block; 11. adjustment handle; 12. secondary insert; 13. rotating disk; 14. primary insert; 15. rotating handle; 16. lifting ear. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application discloses a wind turbine blade hoisting auxiliary device. Figure 1-4 A wind turbine blade hoisting auxiliary device includes a plate body 1, two sliding holes are provided on both sides of the plate body 1, and sliding rods 2 are slidably connected in the two sliding holes. The other end of the sliding rod 2 is fixedly connected to a crossbeam 3. A through hole is provided on one side of the plate body 1, and two adjusting racks 4 are slidably connected in the through hole, one end of one of the racks is fixedly connected to one side of the plate body 1, and the other ends of the two racks are fixedly connected to a limiting block 6, and one end of the other rack is fixedly connected to one side of the other plate body 1. A gear 5 is rotatably connected to the inner bottom wall of the through hole, and the gear 5 is meshed with the two racks. A rotating hole is provided on the inner top wall of the through hole, and the rotating hole A rotating disk 13 is rotatably connected inside, and a rotating handle 15 is rotatably connected to the upper side of the rotating disk 13. A first-level sliding hole is provided on the upper side of the rotating disk 13, and a first-level plugging strip 14 is slidably connected in the first-level sliding hole. A plurality of first-level plugging holes are provided on the upper side of the plate body 1, and the first-level plugging strip 14 is adapted to the plurality of first-level plugging holes. Two sliding holes are provided on both sides of the plate body 1, and the radius and depth of the sliding holes are consistent. A sliding rod 2 is slidably installed corresponding to each sliding hole, and two sliding rods 2 form a group, and the other end is fixedly connected to the crossbeam 3 to make the crossbeam 3 more stable. The gear 5 is installed at the midpoint of the through-hole, and the two racks are respectively fitted to the inner walls of the through-hole on both sides and mesh with the gear 5;

[0023] When the gear 5 rotates, it drives the two racks to retract or extend at the same time. One rack corresponds to two slide bars 2. When the rack moves, the two slide bars 2 make the retraction or extension movement of the beam 3 more stable. At the same time, a limit block 6 is installed at the other end of the rack to prevent the rack from detaching from the gear 5.

[0024] By adopting the above technical solution, two chambers are formed on the inner wall of the crossbeam 3, and the inner walls of the two chambers are slidably connected with adjustment blocks 7, and the inner bottom walls of the two chambers are provided with avoidance grooves. The lower sides of the two adjustment blocks 7 are fixedly connected with hooks 9, and a through hole is provided on one side of the crossbeam 3. A two-way screw rod 8 is rotatably connected in the through hole. The two adjustment blocks 7 are threadedly connected to the threaded area on the surface of the two-way screw rod 8, and one end of the two-way screw rod 8 is fixedly connected with a rotating block 10, and one side of the rotating block 10 is rotatably connected with an adjustment handle 11, and one side of the adjusting block 7 is provided with a secondary sliding hole A secondary plug strip 12 is slidably connected in the secondary sliding hole, and a plurality of secondary plug holes are opened on one side of the crossbeam 3. The secondary plug strip 12 is adapted to the plurality of secondary plug holes. The two chambers have the same size. An additional blocking member is provided on the hook 9 to prevent the cable from detaching from the hook 9 after installation. The bidirectional screw rod 8 is a prior art, and there are two sections of threaded areas in opposite directions on its surface. The two adjustment blocks 7 are correspondingly threadedly connected to the two opposite threaded areas. A magnet is provided at the insertion end of the secondary plug strip 12. When the secondary plug strip 12 is inserted into the secondary plug hole, it can be magnetically fixed to prevent it from falling off.

[0025] By adopting the above technical solution, two lifting ears 16 are fixedly connected to the upper side of the cross beam 3. Lifting ears 16 are installed at both ends of the upper side of each cross beam 3. The lifting ears 16 can be connected to the crane through a lifting cable.

[0026] The implementation principle of a wind turbine blade lifting auxiliary device in an embodiment of the present application is as follows: place the device above the blade to be lifted, first rotate the rotating handle 15, the rotating handle 15 drives the rotating disk 13 to rotate, the rotating disk 13 drives the gear 5 to rotate, and the gear 5 simultaneously drives the two racks to move along the inner wall of the through-hole of the plate body 1, the two racks respectively drive the two beams 3 to move and move under the joint action of the slide bar 2, adjust the distance between the two beams 3 according to the length of the blade, after adjusting to the appropriate position, insert the first-level insertion strip 14 into the first-level insertion hole, limit the rotating disk 13 to complete the locking of the gear 5, and then complete the position locking between the two beams 3.

[0027] Then turn the adjusting handle 11, the adjusting handle 11 drives the rotating block 10 to rotate, the rotating block 10 drives the bidirectional screw 8 to rotate, the bidirectional screw 8 drives the two simultaneous adjusting blocks 7 to slide along the inner wall of the chamber, the two adjusting blocks 7 respectively drive the two hooks 9 to move away from each other, and adjust the distance between the two hooks 9 appropriately according to the width of the blade, so that the distance is greater than the width of the blade, and the secondary insertion strip 12 is inserted into the secondary insertion hole to limit the rotating block 10, completing the limiting of the bidirectional screw 8, repeating the above steps to adjust the two hooks 9 on the other beam 3, thereby locking the distance between the two hooks 9.

[0028] Finally, the lifting cables are passed through the bottom of the blades to be lifted in turn and fixed at both ends to the two hooks 9, and then other cables are cross-fixed to the four lifting ears 16, and the device and the blades are lifted together by a lifting machine.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wind turbine blade hoisting auxiliary device, comprising a plate body (1), characterized in that: Two sliding holes are provided on both sides of the plate body (1), and sliding rods (2) are slidably connected in the two sliding holes. The other end of the sliding rod (2) is fixedly connected to a crossbeam (3). A through opening is provided on one side of the plate body (1), and two adjusting racks (4) are slidably connected in the through opening. One end of one of the racks is fixedly connected to one side of the plate body (1), and the other ends of the two racks are fixedly connected to a limiting block (6), and one end of the other rack is fixedly connected to one side of the other plate body (1).

2. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: The inner bottom wall of the through-hole is rotatably connected to a gear (5), the gear (5) is meshed with the two racks, and the inner top wall of the through-hole is provided with a rotating hole, in which a rotating disk (13) is rotatably connected.

3. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: The inner wall of the crossbeam (3) is formed with two chambers, the inner walls of the two chambers are slidably connected with adjustment blocks (7), the inner bottom walls of the two chambers are provided with avoidance grooves, and the lower sides of the two adjustment blocks (7) are fixedly connected with hooks (9).

4. The wind turbine blade hoisting auxiliary device according to claim 3, characterized in that: A through hole is provided on one side of the crossbeam (3), a bidirectional screw rod (8) is rotatably connected in the through hole, the two adjustment blocks (7) are both threadedly connected to the threaded area on the surface of the bidirectional screw rod (8), and a rotating block (10) is fixedly connected to one end of the bidirectional screw rod (8).

5. The wind turbine blade hoisting auxiliary device according to claim 2, characterized in that: A rotating handle (15) is rotatably connected to the upper side of the rotating disk (13), a first-level sliding hole is provided on the upper side of the rotating disk (13), a first-level inserting strip (14) is slidably connected in the first-level sliding hole, a plurality of first-level inserting holes are provided on the upper side of the plate body (1), and the first-level inserting strip (14) is adapted to fit the plurality of first-level inserting holes.

6. The wind turbine blade hoisting auxiliary device according to claim 4, characterized in that: One side of the rotating block (10) is rotatably connected to an adjusting handle (11), one side of the adjusting block (7) is provided with a secondary sliding hole, a secondary inserting strip (12) is slidably connected in the secondary sliding hole, and one side of the crossbeam (3) is provided with a plurality of secondary inserting holes, the secondary inserting strip (12) is adapted to fit the plurality of secondary inserting holes.

7. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: Two lifting ears (16) are fixedly connected to the upper side of the crossbeam (3).

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