Device for ensuring soft landing and overload alarm of hooks

Abstract

The invention provides a device for ensuring soft landing and overload alarm of hooks. The device comprises two sets of eudipleural units, wherein the two sets of symmetric units are connected by an upper guide sleeve (104) and a lower guide sleeve (104) and are respectively fixed on a travelling vehicle by an upper fixed plate (105) and a lower fixed plate (105); the unit comprises an expansion link (101), two anti-drop guide rods (102), an elastic part (103), a flange (110), an adjustable screw (111) and a circuit control subunit; a circular hole is formed at one end of the expansion link (101) for a steel wire rope (109) to pass, and the adjustable screw (111) is connected with the other end of the expansion link (101); the flange (110) sleeves the expansion link (101), the elastic part (103) is located between the guide sleeve (104) and the flange (110), the two anti-drop guide rods (102) respectively pass through two ends of the two guide sleeves (104) and the flange (110), and the circuit control subunit is arranged on the guide sleeve (104) so as to be used for controlling a hook motor.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a device for ensuring the soft landing of a hook and its overload alarm. Background technique [0002] At present, the commonly used crane hook is connected with the pulley it drives and the fixed pulley on the crane through the wire rope, and the crane operator completes the accurate lifting of the heavy object by visual inspection and hand gestures by the crane operator under the crane. [0003] The defect of this kind of driving hook is that when the environment causes visual obstacles to the driving operator and the finger-hanging personnel, it will cause the operator to make a misjudgment of the environment where the hook is located, and cannot accurately determine the overload or landing, which will cause the hook to fail. Objects touched are injured or even damaged. Contents of the invention [0004] The purpose of the present invention is to overcome the defect that the objec...

AI Technical Summary

Problems solved by technology

[0003] The defect of this kind of driving hook is that when the environment causes visual obstacles to the driving operator and the finger-hanging personnel, it will cause the operator to make a misjudgment of the environment where the hook is located, and cannot accurately determine the overload or landing, which will cause the hook to fail. The object touched is injured or even damaged

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