Crane structure capable of pouring slag at any height

Abstract

The invention discloses a crane structure capable of pouring slag at any height. The crane structure comprises a trolley frame, a trolley running mechanism, a turnover lifting mechanism and a hopper lifting mechanism; the turnover lifting mechanism and the hopper lifting mechanism are independent lifting mechanisms, a coiling drum is driven by a motor, a brake and a speed reducer to run, the lower end of a turnover lifting beam is hung on a turnover shaft and is fixed through a clamping plate, a blocking shaft is arranged on one side of the turnover lifting beam, the turnover lifting beam is in an n shape, the shape of the position where the middle of the turnover lifting beam makes contact with the blocking shaft is semicircular, a reinforcing plate is welded to the position, on the assembling position of the turnover lifting beam and the blocking shaft, of the turnover lifting beam, a movable pulley set is arranged at the upper end of the turnover lifting beam, and the movable pulley set is connected with a turnover lifting mechanism through a steel wire rope. Time of hooking and hook removing is reduced, turnover while lifting is achieved, safety coefficients are improved, if the steel wire rope of the hopper lifting mechanism is broken, the hopper cannot fall down, and therefore casualty accidents are avoided.

Description

technical field [0001] The invention relates to a crane capable of dumping slag at any height, which is especially suitable for use in the construction of railways, urban subways and intercity light rails. Background technique [0002] With the country's vigorous development and construction of railways, urban subways, and intercity light rails, slag cranes are being used more and more. The slag crane is a kind of mechanical equipment that lifts underground rocks, soil, and impurities to the ground and can be automatically dumped. It is used in conjunction with a shield machine, and it is characterized by a large lifting height and a high lifting speed. , high-level work, especially frequent use, can automatically turn the hopper to dump slag. Present slag crane mainly is made up of portal frame or bridge frame, hoisting mechanism, swing arm mechanism, swing hook, suspension beam, suspension belt, hopper. Its working method is to lower the hopper into the well first, wait ...

AI Technical Summary

Problems solved by technology

Due to the use of the swing hook to turn over, the hopper can only be turned up to the position of the swing hook to turn over and dump the soil residue. When the pile of soil residue below is very low, such dumping will cause a lot of dust and seriously pollute the environment

[0006] 3. The assembly precision of the swing arm mechanism and the swing hook is required to be high, and the swing hook is too long and too large, which is difficult to process and high in cost

[0007] 4. Inconvenient to use

[0008] 5. Low safety factor

Due to the high working level, high lifting height and fast lifting speed of the crane, the wire rope is easy to break. Since there are no other safety protection measures, the hopper will fall freely after the lifting wire rope breaks, which is prone to casualties. There have been many accidents. wire rope breakage

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