Segmented tower drum ring sheet body internal dry method connecting device

Abstract

The invention discloses a segmented tower drum ring sheet body internal dry method connecting device which comprises a first ring sheet and a second ring sheet which are connected through a connecting device body. A hand hole is formed in the end face of the first ring sheet, a connecting opening is formed in the end face of the side, close to the second ring sheet, of the hand hole in a penetrating mode, and a mounting hole is formed in the position, corresponding to the connecting opening, of the side wall of the second ring sheet. The connecting device body comprises an inner screw cylinder, a square gasket, a connecting screw rod and a cap-shaped nut, the inner screw cylinder is pre-arranged in the mounting hole, the square gasket is located between the first ring sheet and the second ring sheet, the connecting screw rod is in threaded connection with the inner screw cylinder, and the end, away from the inner screw cylinder, of the connecting screw rod penetrates through the connecting opening to be in threaded connection with the cap-shaped nut. According to the segmented tower drum ring sheet body internal dry method connecting device, the ring sheets can be quickly mounted, the bearing capacity and the mounting precision of the mounted ring sheets are improved, and meanwhile the manufacturing cost and manufacturing difficulty of the ring sheets are reduced.

Description

technical field [0001] The invention relates to the field of sliced ​​tower tubes, in particular to a dry method connection device in the ring slices of the sliced ​​tower tube. Background technique [0002] The production and construction of steel-concrete towers are currently manufactured in factories and then transported to the wind power construction site for hoisting operations. The prefabricated prefabricated concrete towers in the prior art are usually cylindrical or polygonal, and the overall shape is circular or polygonal. . Due to the limitations of prefabrication and transportation, the entire wind power tower had to be split into multiple segments in the height (horizontal) direction, and a segment was split into multiple rings in the circumferential (vertical) direction In order to meet the needs of prefabrication and transportation, since a cylinder section is divided into several ring pieces, the connection between the ring pieces forms a vertical seam. Sinc...

AI Technical Summary

Problems solved by technology

Since the prefabrication accuracy of a single ring is far from the precision of machining, it is difficult to achieve the expected assembly accuracy when the ring is assembled, so that the cumulative error between the ring and the barrel will be very large

In addition, in the dry bolt connection, due to insufficient manufacturing precision of the connection parts and insufficient tightening force of the bolts, the reliability of the vertical seam connection of the ring pieces will be reduced.

[0003] Most of the connection methods of tower rings in the prior art are two-hand hole connection in the body, that is, a screw (self-screw or curved screw) is set in the ring body, and the vertical seam splicing of adjacent rings is realized through the matching connection of the screw nut. The installed screw cannot be taken out, which increases the production cost and difficulty of the ring piece. The built-in screw has poor load-bearing capacity, which cannot guarantee the safety of the tube section during hoisting and the reliability of the tower tube during operation. Under the condition, the splicing progress of the ring piece is poor

At the same time, when performing internal connection operations, it is necessary to reserve relatively large hand holes on the adjacent rings to facilitate the connection and fixation of bolts and nuts, which has a certain impact on the strength of the rings and increases the difficulty of mold manufacturing.

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