CN204569140U - A kind of blower fan tower barrel erect Current Collector Sleave - Google Patents

Abstract

The erecting sling for the wind turbine tower includes: N fixing plates, N is an even number greater than or equal to 4, and each fixing plate is arranged on the flange of the tower along the circumferential direction; the lifting ring is installed by rotating the connecting device on the fixed plate; and the hoisting wire rope, the two ends of which are hooked in the lifting rings using shackles or directly. When hoisting, the wire rope is passed around the pulley on the crane, and the crane is hoisted. As one end of the tower moves upwards gradually, the angle of the lifting ring and the fixed plate changes accordingly by rotating the connecting device. Moreover, since the hooks at both ends of the wire rope are respectively hooked in the rings on the two fixed plates that mirror each other with the horizontal plane where the tower axis is located as the reference plane, the length of the wire rope bypassing the pulley also increases with the hoisting. The process is constantly changing, so that the consistency of the force of the wire rope and the uniformity of the length change ensure the installation of the hoisting and improve the efficiency of the hoisting.

Description

A wind turbine tower erecting sling

technical field

The utility model relates to a lifting sling for erecting a wind turbine tower. the

Background technique

The tower is an important part of the wind turbine. It is heavy and bulky. During installation, it needs to use two lifting machines to cooperate to change it from the horizontal state during transportation to the vertical state during installation. During the erection process of the tower, as the position of the center of gravity of the tower changes, the force of the two hoisting machinery will also change greatly, especially the force of the main crane will increase with the erection of the tower. , the length and stress of each strand of the steel wire rope used may also vary unevenly, which brings hidden dangers to the reasonable selection of lifting rigging and the hoisting safety of the tower.

Contents of the invention

In order to overcome the deficiencies of the above technologies, the utility model provides a fan tower erecting sling that ensures the consistency and uniformity of the force and length of each strand of steel wire ropes used in the erection process of the tower.

The technical solution adopted by the utility model to overcome its technical problems is:

The erection sling for the wind turbine tower includes:

N fixed plates, N is an even number greater than or equal to 4, each fixed plate is arranged on the flange plate of the tower along the circumferential direction, and each fixed plate is fixed on the flange plate by more than two bolts and nuts I in the bolt hole;

A suspension ring, which is rotatably mounted on the fixed plate through a rotatable connection device;

And the hoisting wire rope, the two ends of which are hooked through shackles or directly in the rings on the two fixed plates that mirror each other with the horizontal plane of the tower axis as the reference plane.

The suspension ring is U-shaped, and the lower end of the suspension ring is respectively equipped with a sliding sleeve I and a sliding sleeve II. The rotating connection device includes three lugs arranged on the outer end of the fixing plate and a pin shaft inserted into the three lugs. , the grooves I and II are formed between the three lugs, the tail end of the pin shaft is provided with a screw, the nut II is screwed on the screw rod to fix the pin shaft, and the lifting ring passes through the sliding sleeve I and the sliding sleeve The sleeve II is slidably inserted on the pin shaft, and the sliding sleeve I and the sliding sleeve II are respectively located in the groove I and the groove II.

The beneficial effect of the utility model is: when hoisting, the steel wire rope is passed around the pulley on the crane, and when the crane is hoisting, since one end of the tower tube gradually moves upward, the angle of the hoisting ring and the fixed plate changes accordingly by rotating the connecting device. Moreover, since the hooks at both ends of the wire rope are respectively hooked in the rings on the two fixed plates that mirror each other with the horizontal plane where the tower axis is located as the reference plane, the length of the wire rope bypassing the pulley also increases with the hoisting. The process is constantly changing, ensuring the consistency of the force of the wire rope and the uniformity of the length change, ensuring the safety of hoisting and improving the efficiency of hoisting.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the rigging fixing seat of the present invention;

Fig. 2 is the installation structure schematic diagram of the present utility model;

Fig. 3 is the three-dimensional structure schematic diagram of the present utility model;

In the figure, 1. Fixed plate 2. Bolt 3. Nut Ⅰ 4. Lug 5. Pin 6. Screw 7. Nut Ⅱ 8. Groove Ⅰ 9. Groove Ⅱ 10. Tower 11. Flange 12. Bolt hole 13. Lifting ring 14. Sliding sleeve Ⅰ 15. Sliding sleeve Ⅱ.

Detailed ways

Below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 the utility model is described further.

The erection sling for the wind turbine tower includes:

N fixed plates 1, N is an even number greater than or equal to 4, each fixed plate 1 is arranged on the flange plate 11 of the tower 10 along the circumferential direction, and each fixed plate 1 passes through more than two bolts 2 and nuts I 3 It is fixed in the bolt hole 12 on the flange 11; the suspension ring 13 is rotated and installed on the fixed plate 1 through a rotating connection device; and the lifting wire rope is hung at both ends by a shackle or directly hooked on the axis of the tower 10. The horizontal plane is in the suspension rings 13 on the two fixed plates 1 whose reference planes are mirror images of each other. When hoisting, the wire rope is passed around the pulley on the crane. When the crane is hoisting, since one end of the tower tube 10 moves upwards gradually, the angle of the suspension ring 13 and the fixed plate 1 changes accordingly by rotating the connecting device. Moreover, since the two ends of the wire rope are respectively hooked in the suspension rings 13 on the two fixed plates 1 that are mirror images of each other with the horizontal plane where the axis of the tower tube 10 is located as the reference plane, the length of the wire rope passing around the pulley also changes continuously with the lifting process. , to ensure the consistency of the force of the wire rope and the uniformity of the length change, to ensure the installation of the hoisting, and to improve the efficiency of the hoisting.

The above-mentioned suspension ring 13 can be U-shaped, and the lower end of the suspension ring 13 is respectively equipped with a sliding sleeve I 14 and a sliding sleeve II 15, and the rotating connection device includes three lugs 4 arranged on the outer end of the fixed plate 1 and inserted into the three lugs 4. In the pin shaft 5, the groove I 8 and the groove II 9 are formed between the three lugs 4, the tail end of the pin shaft 5 is provided with a screw 6, and the nut II 7 is screwed on the screw rod 6 to fix the pin shaft 5, The lifting ring 13 is slidably inserted on the pin shaft 5 through the sliding sleeve I 14 and the sliding sleeve II 15, and the sliding sleeve I 14 and the sliding sleeve II 15 are respectively located in the groove I 8 and the groove II 9. The wire rope can be easily hooked on the U-shaped lifting ring 13, and the lifting ring 13 can freely rotate along the pin shaft 5 through the sliding sleeve I 14 and the sliding sleeve II 15, so as to match the angle change of the wire rope during hoisting, and the structure is simple , easy production, processing and transfer.

Claims (2)

1. a blower fan tower barrel erect Current Collector Sleave, is characterized in that, comprising:

N number of adapter plate (1), N be more than or equal to 4 even number, each adapter plate (1) is along the circumferential direction all arranged on the flange (11) of tower cylinder (10), and each adapter plate (1) is fixed in the bolt hole (12) on flange (11) by plural bolt (2) and nut I (3);

Suspension ring (13), it is rotated by rotary connecting device and is installed on adapter plate (1);

And hoisting wirerope, its two ends by shackle or be directly hooked on the horizontal surface at tower cylinder (10) axis place be the mutual mirror image of reference plane two adapter plates (1) on suspension ring (13) in.

2. blower fan tower barrel erect Current Collector Sleave according to claim 1, it is characterized in that: described suspension ring (13) are in U-shaped, the lower end of described suspension ring (13) is separately installed with sliding sleeve I (14) and sliding sleeve II (15), described rotary connecting device comprises three lugs (4) being arranged at adapter plate (1) external side end and the bearing pin (5) be plugged in three lugs (4), groove I (8) and groove II (9) is formed between described three lugs (4), the tail end of described bearing pin (5) is provided with screw rod (6), nut II (7) is combined on screw rod (6) and is fixed by bearing pin (5), described suspension ring (13) are slided by sliding sleeve I (14) and sliding sleeve II (15) and are plugged on bearing pin (5), and sliding sleeve I (14) and sliding sleeve II (15) lay respectively in groove I (8) and groove II (9).