Tower bolt pre-tightening device of wind generating set

Abstract

The utility model provides a wind generating set tower bolt pre-tightening device, which relates to the technical field of wind driven generators and comprises a fixing block, an arc-shaped groove is arranged on one side of the fixing block, and a first limit groove is arranged at the top of the fixing block. A first electric telescopic rod is installed at the bottom end of the inner wall of a first limiting groove, a fixing plate is arranged at the other end of the first electric telescopic rod, a driving motor is installed at the top of the fixing plate, a limiting hole is formed in the top of a fixing block, a rotating shaft is arranged at the output end of the driving motor, and a fixing column is arranged at the other end of the rotating shaft. A second limiting groove is formed in the fixing column, a magnet is arranged in the second limiting groove, a bolt groove is formed in the bottom end of the fixing column, the bolt groove can be aligned with a bolt, a driving motor is started, and the fixing column rotates along with rotation of a rotating shaft, so that the bolt is re-installed and fixed, and the effect that convenience is increased during installation is achieved; and the bolt can be effectively prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generators, in particular to a tower bolt pre-tightening device for a wind turbine generator set. Background Art

[0002] A wind turbine is an electric device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. A wind turbine is generally composed of a wind wheel, a generator (including a device), a rectifier (tail), a tower, a speed limit safety mechanism, and an energy storage device.

[0003] The installation of the existing wind turbine tower basically accounts for half of the installation time. After the unit is put into operation, the tower bolts generally need to be maintained every six months or a year. During the entire life of the wind turbine, the installation and maintenance of the tower bolts are extremely important. When the bolts are loose, the installation is very troublesome, which may easily cause the bolts to fall off. In addition, the device is not firmly fixed during installation, which is inconvenient to move after installation. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that bolts are difficult to install and easy to fall off, the device is unstable during installation, and it is inconvenient to move after installation, and proposes a wind turbine tower bolt pre-tightening device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wind turbine tower bolt pre-tightening device, comprising a fixed block, an arc groove is provided on one side of the fixed block, a first limiting groove is provided on the top of the fixed block, a first electric telescopic rod is fixedly installed on the bottom end of the inner wall of the first limiting groove, a fixed plate is provided at the other end of the first electric telescopic rod, a driving motor is fixedly installed on the top of the fixed plate, a limiting hole is provided on the top of the fixed block, a rotating shaft is provided at the output end of the driving motor, the rotating shaft is located inside the limiting hole, and a fixing column is provided at the other end of the rotating shaft.

[0006] Preferably, a second limiting groove is provided inside the fixing column, and a magnet is arranged inside the second limiting groove.

[0007] Preferably, a bolt groove is provided at the bottom end of the fixing column, and a circular hole is provided at the top of the inner wall of the bolt groove.

[0008] Preferably, a fixing tube is fixedly mounted on the bottom of the fixing block, a fixing rod is fixedly mounted on the bottom of the fixing block, and the other end of the fixing rod is fixedly mounted on the outer surface of the fixing tube.

[0009] Preferably, a second electric telescopic rod is arranged on one side of the arc groove, a first suction cup is arranged on the other end of the second electric telescopic rod, a third electric telescopic rod is arranged at the bottom of the fixed block, and a second suction cup is arranged on the other end of the third electric telescopic rod.

[0010] Preferably, a fourth electric telescopic rod is arranged on one side of the arc groove, a first universal wheel is arranged on the other end of the fourth electric telescopic rod, a support column is fixedly installed on the bottom of the fixed block, and a second universal wheel is arranged on the bottom end of the support column.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, a first electric telescopic rod is installed at the bottom end of the inner wall of the first limiting groove, a fixing plate is arranged at the other end of the first electric telescopic rod, a driving motor is installed on the top of the fixing plate, a limiting hole is arranged on the top of the fixing block, a rotating shaft is arranged at the output end of the driving motor, a fixing column is arranged at the other end of the rotating shaft, a second limiting groove is arranged inside the fixing column, a magnet is arranged inside the second limiting groove, a bolt groove is arranged at the bottom end of the fixing column, the bolt groove can be aligned with the bolt, the driving motor can be turned on, and the fixing column can rotate with the rotation of the rotating shaft, so that the bolt can be reinstalled and fixed, which increases the convenience during installation, and the bolt can be effectively prevented from falling off by the effect of the magnet.

[0013] 2. In the utility model, a second electric telescopic rod is arranged on one side of the arc groove, a first suction cup is arranged on the other end of the second electric telescopic rod, a third electric telescopic rod is arranged on the bottom of the fixed block, and a second suction cup is arranged on the other end of the third electric telescopic rod. Through the telescopic effect of the second electric telescopic rod and the third electric telescopic rod, the first suction cup and the second suction cup can adsorb the equipment, so that the device is fixed more firmly when the bolt is installed. A fourth electric telescopic rod is arranged on one side of the arc groove, a first universal wheel is arranged on the other end of the fourth electric telescopic rod, a support column is installed on the bottom of the fixed block, and a second universal wheel is arranged on the bottom end of the support column. Through the effect of the first universal wheel and the second universal wheel, after the bolt is installed, the device can be moved more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural diagram of a tower bolt pre-tightening device for a wind turbine generator set;

[0015] Figure 2 The utility model provides a side perspective structural diagram of a tower bolt pre-tightening device for a wind turbine generator set;

[0016] Figure 3 The utility model provides a three-dimensional cross-sectional view of a fixing column in a bolt pre-tightening device for a tower of a wind turbine generator set;

[0017] Figure 4 The utility model provides a three-dimensional structural diagram of a fixing block in a tower bolt pre-tightening device of a wind turbine generator set.

[0018] Legend: 1. Fixed block; 2. Arc groove; 3. First limiting groove; 4. First electric telescopic rod; 5. Fixed plate; 6. Drive motor; 7. Limiting hole; 8. Rotating shaft; 9. Fixed column; 10. Second limiting groove; 11. Magnet; 12. Bolt groove; 13. Round hole; 14. Fixed rod; 15. Fixed tube; 16. Second electric telescopic rod; 17. First suction cup; 18. Third electric telescopic rod; 19. Second suction cup; 20. Fourth electric telescopic rod; 21. First universal wheel; 22. Support column; 23. Second universal wheel. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a bolt pre-tightening device for a tower of a wind turbine generator set, comprising a fixing block 1, an arc groove 2 is provided on one side of the fixing block 1, a first limiting groove 3 is provided on the top of the fixing block 1, a first electric telescopic rod 4 is fixedly installed on the bottom end of the inner wall of the first limiting groove 3, a fixing plate 5 is provided at the other end of the first electric telescopic rod 4, a driving motor 6 is fixedly installed on the top of the fixing plate 5, a limiting hole 7 is provided on the top of the fixing block 1, a rotating shaft 8 is provided at the output end of the driving motor 6, the rotating shaft 8 is located inside the limiting hole 7, and a fixing column 9 is provided at the other end of the rotating shaft 8.

[0022] The effect achieved by the entire embodiment 1 is that an arc groove 2 is opened on one side of the fixed block 1, a first limiting groove 3 is opened on the top of the fixed block 1, a first electric telescopic rod 4 is fixedly installed at the bottom end of the inner wall of the first limiting groove 3, and a fixing plate 5 is arranged at the other end of the first electric telescopic rod 4, and the fixing plate 5 can move up and down by the telescopic effect of the first electric telescopic rod 4, and a driving motor 6 is fixedly installed on the top of the fixing plate 5, a limiting hole 7 is opened on the top of the fixed block 1, a rotating shaft 8 is arranged at the output end of the driving motor 6, the rotating shaft 8 is located inside the limiting hole 7, and a fixing column 9 is arranged at the other end of the rotating shaft 8, and the driving motor 6 can be turned on, and the fixing column 9 can rotate with the rotation of the rotating shaft 8.

[0023] Embodiment 2, as Figure 1 - Figure 4 As shown, a second limiting groove 10 is provided inside the fixing column 9, and a magnet 11 is arranged inside the second limiting groove 10; a bolt groove 12 is provided at the bottom end of the fixing column 9, and a round hole 13 is provided at the top of the inner wall of the bolt groove 12; a fixing tube 15 is fixedly installed at the bottom of the fixing block 1, and a fixing rod 14 is fixedly installed at the bottom of the fixing block 1, and the other end of the fixing rod 14 is fixedly installed on the outer surface of the fixing tube 15; a second electric telescopic rod 16 is provided on one side of the arc groove 2, and a first suction cup 17 is provided on the other end of the second electric telescopic rod 16; a third electric telescopic rod 18 is provided at the bottom of the fixing block 1, and a second suction cup 19 is provided on the other end of the third electric telescopic rod 18; a fourth electric telescopic rod 20 is provided on one side of the arc groove 2, and a first universal wheel 21 is provided on the other end of the fourth electric telescopic rod 20; a support column 22 is fixedly installed at the bottom of the fixing block 1, and a second universal wheel 23 is provided at the bottom end of the support column 22.

[0024] The effect achieved by the entire embodiment 2 is that a second limiting groove 10 is provided inside the fixing column 9, and a magnet 11 is arranged inside the second limiting groove 10, so that the bolt can be effectively prevented from falling off by the effect of the magnet 11; a bolt groove 12 is provided at the bottom end of the fixing column 9, and a round hole 13 is provided at the top of the inner wall of the bolt groove 12, so that the bolt can be better placed inside the bolt groove 12; a fixing tube 15 is fixedly installed at the bottom of the fixing block 1, and a fixing rod 14 is fixedly installed at the bottom of the fixing block 1, and the other end of the fixing rod 14 is fixedly installed on the outer surface of the fixing tube 15, so that the fixing column 9 can be better located inside the fixing tube 15, and when the device is installing the bolt, the fixing column 9 rotates inside the fixing tube 15, which has a more stable effect; a second electric A first suction cup 17 is arranged at the other end of the second electric telescopic rod 16, a third electric telescopic rod 18 is arranged at the bottom of the fixed block 1, and a second suction cup 19 is arranged at the other end of the third electric telescopic rod 18. The first suction cup 17 and the second suction cup 19 can adsorb the equipment through the telescopic effect of the second electric telescopic rod 16 and the third electric telescopic rod 18, so that the device can be fixed more firmly when the bolt is installed; a fourth electric telescopic rod 20 is arranged on one side of the arc groove 2, and a first universal wheel 21 is arranged at the other end of the fourth electric telescopic rod 20. A support column 22 is fixedly installed at the bottom of the fixed block 1, and a second universal wheel 23 is arranged at the bottom of the support column 22. Through the effect of the first universal wheel 21 and the second universal wheel 23, after the bolt is installed, the device can be moved more conveniently.

[0025] Working principle: the staff aligns the bolt slot 12 with the bolt, and under the telescopic action of the second electric telescopic rod 16 and the third electric telescopic rod 18, the first suction cup 17 and the second suction cup 19 adsorb the equipment, so that the device is fixed more firmly when the bolt is installed. By turning on the drive motor 6, the fixing column 9 rotates with the rotation of the rotating shaft 8, thereby driving the bolt to rotate, and when rotating, under the telescopic action of the first electric telescopic rod 4, the bolt is fixed more firmly. After the bolt is installed, when the next loose bolt needs to be installed, the first universal wheel 21 and the second universal wheel 23 make it more convenient to move the device.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tower bolt pre-tightening device for a wind turbine generator set, comprising a fixing block (1), characterized in that: An arc groove (2) is provided on one side of the fixing block (1), a first limiting groove (3) is provided on the top of the fixing block (1), a first electric telescopic rod (4) is fixedly mounted on the bottom end of the inner wall of the first limiting groove (3), a fixing plate (5) is provided on the other end of the first electric telescopic rod (4), a driving motor (6) is fixedly mounted on the top of the fixing plate (5), a limiting hole (7) is provided on the top of the fixing block (1), a rotating shaft (8) is provided at the output end of the driving motor (6), the rotating shaft (8) is located inside the limiting hole (7), and a fixing column (9) is provided on the other end of the rotating shaft (8).

2. A wind turbine tower bolt pre-tightening device according to claim 1, characterized in that: A second limiting groove (10) is provided inside the fixing column (9), and a magnet (11) is arranged inside the second limiting groove (10).

3. A wind turbine tower bolt pre-tightening device according to claim 1, characterized in that: A bolt slot (12) is provided at the bottom end of the fixing column (9), and a circular hole (13) is provided at the top of the inner wall of the bolt slot (12).

4. A wind turbine tower bolt pre-tightening device according to claim 1, characterized in that: A fixing tube (15) is fixedly mounted on the bottom of the fixing block (1), a fixing rod (14) is fixedly mounted on the bottom of the fixing block (1), and the other end of the fixing rod (14) is fixedly mounted on the outer surface of the fixing tube (15).

5. A wind turbine tower bolt pre-tightening device according to claim 1, characterized in that: A second electric telescopic rod (16) is arranged on one side of the arc-shaped groove (2), a first suction cup (17) is arranged on the other end of the second electric telescopic rod (16), a third electric telescopic rod (18) is arranged on the bottom of the fixed block (1), and a second suction cup (19) is arranged on the other end of the third electric telescopic rod (18).

6. A wind turbine tower bolt pre-tightening device according to claim 1, characterized in that: A fourth electric telescopic rod (20) is arranged on one side of the arc-shaped slot (2), a first universal wheel (21) is arranged on the other end of the fourth electric telescopic rod (20), a support column (22) is fixedly mounted on the bottom of the fixed block (1), and a second universal wheel (23) is arranged on the bottom end of the support column (22).

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