Tower body erecting and descending mechanism for tower crane and erecting and descending method thereof
A tower crane and tower body technology, applied in the erection field of tower cranes, can solve problems such as slow erection speed, low erection efficiency, and inconvenient operation, and achieve the effects of simple operation, simple structure, and improved work efficiency
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[0028] Please also refer to figure 1 , the vertical lowering mechanism of the tower crane of the present invention is installed on the tower body 1 and the turntable 2, the tower body 1 includes an upper tower body 101 and a lower tower body 102 hinged to each other, and the upper tower body 101 includes mutually socketed The inner tower body 101a and the outer tower body 101b, the inner tower body 101a is socketed in the outer tower body 101b and moves vertically to extend or retract. A thin slide 3 and a thick slide 4 are respectively fixed on the inner wall of the top of the outer tower body 101b (near the end of the extension of the inner tower body 101a). The extension direction of the body 101b is the same, the thin slide plate 3 and the thick slide plate 4 are respectively provided with a first smooth surface (not shown in the figure) and a second smooth surface (not shown in the figure), and the thin slide plate 3 and the thick slide plate 4 are respectively on The fi...
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