Fixing device and adjusting method for a circular track

Abstract

A fixing device for an annular track and a regulation method of the fixing device relate to hoisting machinery, and solves the problem that the adjustment amount between the annular track of the existing nuclear power station annular crane and a track bearing beam is small so that the annular track is not suitable for an annular track bearing beam and a plant position to locate oppositely. A plurality of track base plates are padded between the annular track and the annular track bearing beam, an installation slot is formed in the middle of each track base plate, a long round bolt hole is formed at each of two ends of the track base plate, the annular track is arranged in the center of the installation slot, and a group of regulation plates and a wedge-shaped plate are arranged in the installation slot and two sides of the annular track. Due to the adoption of the fixing device, the diameter and the ovality of the annular track and the overlap ratio of the center of the annular track and the center of the plant can be regulated through the movement of the annular track along the radial direction relative to the track bearing beam, thus achieving the required value, furthermore, the required adjustment amount of the radius of the annular track relative to the plant is met, therefore, the nuclear power station annular crane is guaranteed to be at the best operation state.

Description

technical field [0001] The invention belongs to hoisting machinery, in particular to an annular track of an annular crane used in a nuclear power plant. Background technique [0002] After the nuclear power station ring crane has completed its service in the installation phase of the nuclear power plant, it is necessary to do prestress and pressure tests on the nuclear island building before the nuclear power plant is in operation. When doing prestressing, the radius of the factory building will be reduced by 10-15mm; when doing pressure test, the radius of the factory building will be increased by 10-20mm. In addition, during the operation of the nuclear power plant, the radius of the plant will change due to factors such as the creep of the plant concrete and the change of the plant under the accident state. The radius of the circular track fixed on the rail bearing beam of the factory building will also change with the change of the factory building radius. In order to ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art, provide a ring track fixing device and its adjustment method, and solve the problem that the adjustment amount of the fixing method between the ring track of the existing nuclear power station ring crane and the ring bearing beam is very small, and it is not easy Applicable to the situation where the position between the ring-shaped rail beam and the factory building is relatively fixed

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