Integrated box type track beam closed chain-driven steel wire rope single beam crane

Abstract

The invention discloses an integrated box type track beam closed chain-driven steel wire rope single beam crane, and relates to the technical field of cranes. According to the crane, a lifting mechanism comprises a hydraulic oil cylinder, a horizontal steering wheel, a fixed pulley group, a movable pulley group, a lifting pulley, a lifting sling, a tail end balance wheel and a fixed end; and an operating mechanism comprises a driving chain wheel, an operating driver, an operating trolley and a driven chain wheel, a track beam is of a plate splicing type semi-closed box type structure, and a trolley track and a chain track are arranged in the inner space of the track beam. According to the integrated box type track beam closed chain-driven steel wire rope single beam crane, the lifting mechanism is arranged inside the integrated box type track beam, so that the lifting clearance size is effectively saved; all the moving parts are located in a hollow cavity inside the integrated box typetrack beam, so that the influence of mud water brought by the external construction environment is effectively isolated, and the service life is prolonged; the equipment load capacity optional rangeis large, so that the lifting and conveying requirements of prefabricated segments with larger weight are met; and a control loop is simple, the electrical principle is simple, and the maintenance iseasy.

Description

technical field [0001] The invention belongs to the technical field of cranes, in particular to an integrated box-type track beam closed chain-driven steel wire rope single-girder crane. Background technique [0002] When the shield machine is working, the prefabricated cement segment needs to be continuously transported by the segment crane. At present, the cranes that complete this lifting function on the market are mainly completed by chain hoist cranes, such as Figure 13 , 14 Shown: [0003] 1. Its main feature is that the chain hoist is directly fixed under the lifting trolley. The size of the chain hoist and the chain box takes up most of the space, resulting in the loss of the size of the lifting clearance. The clearance height is large and the lifting space is small; [0004] 2. Due to the limitation of the size of the chain hoist itself, the maximum tonnage of the standard double vertical chain electric hoist can only reach 5 tons, the load is limited, and the app...

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Problems solved by technology

[0004] 2. Due to the limitation of the size of the chain hoist itself, the maximum tonnage of the standard double vertical chain electric hoist can only reach 5 tons, the load is limited, and the application range is narrow;

[0005] 3. If Figure 14 As shown, the broken line part is a mobile cable. The electric control part of the chain hoist crane not only needs to provide power supply and control for the drive of the running part, but also needs to provide power supply and control for the chain hoist. The electric control is complicated, the wiring is cumbersome, and the moving parts More, the point of failure increases correspondingly;

[0006] 4. The components are exposed and easily damaged in the harsh construction environment of shield tunneling;

[0007] Therefore, the existing chain hoist cranes have the following disadvantages: large headroom, small lifting space, limited load, narrow application range, complicated electronic control, cumbersome wiring, many moving parts, and exposed parts are easily damaged in harsh environments

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