Method for integrally mounting hinge device of extra-large sector gate

Abstract

The invention provides a method for integrally mounting a hinge device of an extra-large sector gate. Integral mounting of the hinge device is realized through torque balance between power (balance weight end) and resistance (trunnion end) by utilizing the lever principle, namely, a thick-walled steel tube is connected on the movable hinge side to serve as a balancing lever and the other end of the lever is provided with balance weight. A 300-ton lorry-mounted crane is adopted to lift a gravity center position of a trunnion to lift the hinge device, a 130-ton lorry-mounted crane is adopted to lift a balance weight position, the cranes lift lifting hooks to change power of the balance weight end to realize aloft unmanned adjustment of hinge mounting angles, a 20-ton chain block is hung between a lifting lug arranged at the hinge end and a lifting hook of the 300-ton lorry-mounted crane to adjust balance of the left side and the right side of the hinge, four lifting lugs are pre-embedded on pre-embedded hinge bolt surfaces to serve as towing points for hinge entering bolts, and towing tension generated by four 10-ton chain blocks are matched with thrust generated by stretching of the 130-ton crane to pull the hinge integrally. The problems of large difficulty in integral mounting of the hinge device, high mounting and control size accuracy and potential safety hazard of aloft working are solved; and mounting quality is improved and construction speed is increased.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and in particular relates to a method for integrally installing a leaf branch hinge device of a super large arc gate. Background technique [0002] During the installation process of the arc gate, the hinge plays the core role of the installation and positioning of the entire arc gate, and is the key to the smooth operation of the arc gate. The installation of the hinge requires high precision, and the installation and measurement environment conditions are poor. At present, the conventional disassembly and installation commonly used in domestic power stations is mainly used in places where the weight of the hinge is not large and the location of the installation site is relatively good, but the overall construction effect consumes a lot of time, the construction quality is not high, the risk of high-altitude operation is high, and the economic benefit is not ...

AI Technical Summary

Problems solved by technology

The sluice chamber under the flood discharge tunnel is 14m wide, and the installation position of the support hinge is in the slope section at a depression angle. Due to the overall weight of the support hinge is large, the installation accuracy is high, the construction period is tight, and the installation position is complicated. The traditional construction method cannot meet the above requirements, so it must be Seek new construction technology—integral installation of support and hinge

Images