Tower crane rotary speed reduction control device in emergency power failure state

Abstract

The invention relates to a tower crane rotary speed reduction control device in an emergency power failure state. The tower crane rotary speed reduction control device comprises a brake mechanism anda pedal, wherein the brake mechanism is arranged on a tower crane rotary device and comprises a casing; the pedal is arranged in a cab; a screw rod is arranged in the casing; one end of the screw rodmovably penetrates out of the side wall of the casing to be connected with a brake block of a coupler near the tower crane rotary device; the other end of the screw rod movably penetrates out of the casing to be movably connected with a brake rod. By using the scheme, the structural design is reasonable; under the condition that the tower crane suddenly generates power failure, the tower crane canbe controlled to brake; the collision of a hanging arm of a tower crane with other tower crane or building under the inertial effect can be prevented; in addition, the braking distance is controlledthrough manually controlling the pedaling intensity of the pedal; the occurrence of lock phenomenon can be reduced; the tower body swinging due to emergency braking can be prevented; the braking operation is more reasonable; safety guarantee is provided for building operation.

Description

Technical field: [0001] The invention relates to a rotation deceleration control device of a tower crane in an emergency power-off state. Background technique: [0002] At present, in construction operations, with the continuous increase of building height, continuous expansion of construction area, and the continuous increase of the number of building monomers, there are more and more tower crane operations in group tower operations and small spaces, resulting in tower crane operations. The potential safety hazards are also increasing, so the safe operation of tower cranes is particularly important. [0003] During the operation of tower cranes, when large and medium-sized equipment such as tower cranes and pile drivers are operating at the same time, voltage fluctuations are prone to occur and cause power outages. When there is a sudden power failure, the boom of the tower crane is easy to The car slides, the hanging objects deflect at will, and it is easy to collide with...

AI Technical Summary

Problems solved by technology

[0003] During the operation of tower cranes, when large and medium-sized equipment such as tower cranes and pile drivers are operating at the same time, voltage fluctuations are prone to occur and cause power outages. When there is a sudden power failure, the boom of the tower crane is easy to The car slides, the hanging objects deflect at will, and it is easy to collide with the surrounding buildings and the steel wire rope of the nearby tower crane, causing danger and property loss. There are serious safety hazards and it is difficult to meet the requirements of construction operations.

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