Efficient and safe tower crane wire rope anti-falling device

Abstract

The invention discloses an efficient and safe tower crane wire rope anti-falling device which comprises a mounting frame. The mounting frame is internally provided with a first circular plate and a second circular plate which are mounted on the mounting frame, mounting grooves are formed in the opposite surfaces of the first circular plate and the second circular plate, the two mounting grooves are both internally and slidably connected with sliding plates, a fixed pulley is installed between the two sliding plates, and the opposite sides of the two sliding plates are both fixedly connected with a plurality of first springs, the first springs are respectively and fixedly connected to the inner walls of the mounting groove on the same side, and a plurality of limiting mechanisms are arranged between the two sliding plates and the first circular plate as well as the second circular plate. The fixed pulley can be limited in a buffered mode through the cooperation of the first springs, a T-shaped rod and a third spring, the protection of a steel wire rope and the fixed pulley is realized, meanwhile, when the fixed pulley moves, an anti-falling roller moves downwards and abuts against the steel wire rope, and through the abutment of the anti-falling roller on the steel wire rope, the steel wire rope can be effectively prevented from jumping.

Description

technical field [0001] The invention relates to the technical field of dental comprehensive treatment machines, in particular to an efficient and safe wire rope anti-detachment device for tower cranes. Background technique [0002] Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane". The upper load transmitted by the jib stay rope and the balance jib stay rope is directly transmitted to the tower body structure through the turntable through the structural components such as the slewing tower, turntable, and seat. The top of the self-elevating tower has a truncated cone column type, a forward or backward inclined truncated cone column type, a herringbone frame type and a diagonal brace type. All upper slewing tower cranes need to be equipped with a balance weight, whose function is to support the balance weight to form the balance moment required by the design in the opposite direction to the lifting moment. In addition...

AI Technical Summary

Problems solved by technology

[0003] During the use of the steel wire rope of the traveling pulley of the tower crane at the construction site, the position of the entry point of the steel wire rope and the pulley when the speed of the traveling crane is changed often has irregular jumping and deflection, which may easily cause the steel wire rope to jump out of the pulley groove, so that the wire rope is squeezed Flat and broken problems; when the above problems occur, the whole wire rope and pulleys will be damaged, and even the hanging objects will fall and cause safety accidents, which will cause greater safety hazards to the user.

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