Weight anti-falling protection system of tower crane

Abstract

The invention relates to a weight anti-falling protection system for a tower crane. The weight anti-falling protection system for the tower crane is matched with the tower crane and comprises a signal acquisition unit, an editable controller, a frequency converter and an input and output unit, wherein the signal acquisition unit is matched with the tower crane and is used for acquiring a working signal of the tower crane, the editable controller is used for acquiring a feedback signal and outputting a control signal, the frequency converter is correspondingly matched with the signal acquisition unit and the editable controller and used for completing signal interaction, and the input and output unit is matched with the editable controller for inputting manual information and outputting different state information of the tower crane. The weight anti-falling protection system for the tower crane is reliable in performance, and can detect the running condition of a current brake in real time through the frequency converter and automatically and quickly output the lifting torque to a lifting motor to pull a heavy object and suspend the heavy object in the air when the lifting brake fails during lifting of the tower crane, so that the problem that the lifting brake fails during lifting of the tower crane is solved.

Description

technical field [0001] The present invention relates to cranes; the technical field of load hanging components or devices used for cranes, winches, winches or pulleys, in particular to a heavy object fall prevention protection system for tower cranes. Background technique [0002] Tower cranes, also known as tower cranes, are the most commonly used lifting equipment on construction sites. They are lifted step by step with standard sections, and are used to lift construction materials such as steel bars, corrugated wood, concrete, and steel pipes. Tower crane is an indispensable equipment on the construction site. [0003] In the actual operation process, there is often a need to make the hoisting heavy objects hover in the air. In the prior art, most tower cranes make the heavy objects hover in the air by installing them on the hoisting mechanism. It is realized by the lifting brake, but this has great potential safety hazards; once the lifting brake fails during hoisting, ...

AI Technical Summary

Problems solved by technology

[0003] In the actual operation process, there is often a need to make the hoisting heavy objects hover in the air. In the prior art, most of the tower cranes make the heavy objects hover in the air by installing them on the hoisting mechanism. It is realized by the lifting brake, but this has great potential safety hazards; once the lifting brake fails during hoisting, such as brake sticking, excessive wear of the brake pads, burnout of the brake push rod motor, and reduction of the braking torque There are no other particularly effective measures to prevent the heavy objects from slipping into the hook. You can only watch the heavy objects hit the ground or the building floor at high speed. Casualties, major safety accidents, and serious economic losses

[0004] Once a problem occurs in the traditional method, the driver often does not know at the beginning that the lifting brake has failed and does not take any measures. There is no sound alarm, no problem prompt, and no voice reminder. It is generally too late when the problem is found, and there is no Other particularly effective measures to prevent heavy objects from slipping into the hook, and at this time the driver is generally flustered, in a hurry and does not know how to operate, which is more likely to cause safety accidents

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