Climbing process of an internal climbing tower crane
The tower is sleeved on the ladder climbing, lifting hydraulic cylinder is articulated in the body of the beam, and the lower end (piston rod end) the middle beam is hinged on the activities. The two sides of the tower are provided with legs, and the two sides of the movable beam are also provided with legs, and the two supporting legs are alternately supported on the ladder steps so as to cause the tower to rise.
There are two kinds of climbing mechanisms: hydraulic and mechanical. The hydraulic climbing mechanism consists of a ladder ladder, a hydraulic cylinder, a climbing beam and a support leg. The climbing ladder is composed of an upper and a lower bearing beams, separated by two stories, which are fixed on the wall or side beam of the cylindrical structure when the work is used, and both sides of the ladder stand are provided with steps. The load bearing beam corresponds to the four main limbs of the crane tower, and is equipped with 8 guide rollers, which plays a guiding role when climbing.
Climbing tower crane, usually installed in the elevator shaft building or ad hoc Bay, also can be installed in the cylinder structure, by means of a climbing mechanism increases with the structure increases, generally every building 3~8m, crane climbing a tower, its height is only 20m left and right, lifting height with construction height and.
