Positioning device for high-stability tower crane lifting hook

Abstract

The invention discloses a positioning device for a high-stability tower crane lifting hook. The positioning device comprises a tower crane body, and a positioning block is arranged outside the upper portion of the tower crane body. The positioning block is connected with one end of a telescopic rod through an upper rotary shaft, and connecting blocks are arranged on the lower surface of the positioning block and the lower surface of a carrying hook. An internal sliding groove is connected with a limiting plate through an internal sliding block, and a servo motor is fixed into the tower crane body. The side face of the tower crane body is rotationally connected with an intermediate rotary shaft, and lateral sliding grooves are symmetrically formed in the two sides in the tower crane body and connected with the positioning block through a lateral sliding block. Positioning grooves are formed in the connecting blocks and an inhaul cable, and a penetrating groove is preserved in a fixed plate. According to the positioning device for the high-stability tower crane lifting hook, the telescopic rod is arranged in a rotating connection manner, and the stability of the position of the carrying hook can be improved; by means of the limiting plate arranged to be of an elastic structure, inertia force generated by cargoes can be buffered, and construction safety is improved.

Description

technical field [0001] The invention relates to the technical field of tower cranes, in particular to a positioning device for lifting hooks of tower cranes with high stability. Background technique [0002] Tower crane is the most commonly used lifting equipment on construction sites, also known as tower crane. The last essential equipment, the function of the tower crane is to bear the upper load transmitted from the jib stay rope and the balance jib stay rope, and transmit it directly to the tower through the turntable through the structural components such as the slewing tower, turntable, bearing, etc. Body structure, the tower crane uses the hook to transfer when carrying goods, the hook is a more important component of the tower crane, according to the needs of the construction, use the corresponding positioning device to control the position of the hook, but most of the tower cranes are now hoisted The structure of the hook positioning device is relatively simple. Th...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a highly stable positioning device for lifting the hook of a tower crane, which solves the problem that most of the positioning devices for lifting the hook of a tower crane are relatively simple in structure, and the hook belongs to high-altitude operations, which are easily damaged. Affected by wind force, in the case of strong ambient wind, the hook is easy to rotate and knot, and the operation safety is relatively defective. The weight of the goods carried is relatively large. When the positioning device controls the position of the hook, the weight of the goods carried by the hook is easy to shake due to inertia, which is not conducive to the use of the problem.

Images