Hoisting method for framework of large tonnage pressing machine

Abstract

The invention relates to a method for hoisting large scale equipment, in particular to a method for hoisting a large-tonnage pressing machine frame. The method comprises the following steps: tower beams are arranged on two sides of the installation position of the pressing machine frame; a large scale hoisting device is arranged on the tower beams; a sliding shaft and a falling shaft are arrangedrespectively in the front and in the back of the pressing machine frame; the sliding shaft is arranged at the top of the pressing machine frame and in the back thereof, and the falling shaft is arranged at the bottom thereof and in the front thereof; the sliding shaft slides rotationally forwards on a slideway; the falling shaft rotationally falls down, until the pressing machine frame is upright; a hoisting point is changed in the position of the sliding shaft; and the installation is completed after the pressing machine frame falls down for a certain distance. Compared with the prior hoisting method, the method of the invention has the outstanding advantages that: the height of the tower is reduced, so that all work can be done in the well-installed workshop; the hoisting equipment in the workshop is fully utilized, so that the hoisting problems of all hoisting equipment are solved and the hoisting cost of the prior art is saved; the construction period is shortened, and the safety is guaranteed; and the method is suitable for the hoisting installation operations in narrow spaces or at high altitude, underground, and in other construction situations.

Description

Technical field: [0001] The invention relates to a method for hoisting large-scale equipment, in particular to a method for hoisting a large-tonnage press frame. Background technique: [0002] At present, part of the large-tonnage press frame in the workshop is generally based on the pit, and the lifting capacity of the lifting equipment in the workshop cannot meet the requirements for single-piece weight hoisting of the large-tonnage press frame. The traditional If a vertical tower is used and large-scale lifting equipment is installed on it, all the press frames must be hoisted vertically and then dropped, which will inevitably cause the height of the tower to exceed the height of the roof truss of the factory building, which will affect the perfection of the installation of the factory building and reduce the installation efficiency. , the cost increases, and the construction period is extended. Especially when the factory building is low and the floor has been basically...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the above problems, and provides a hoisting method of a large-tonnage press frame, which creatively adopts the hoisting process of lifting and upside-down, and reduces the height of the tower to a level that does not affect the installation of the factory building and the use of the crane. Solve all the problems of the original lifting process; during the sliding and falling process, the sliding axis is constrained to move forward in the horizontal direction without force control, avoiding sliding under self-gravity, so that the falling axis is always in a vertical direction surface exercise

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