Crane speed detection anti-falling device

Abstract

The invention provides a crane speed detection anti-falling device which is characterized in that a spring frame is arranged between the tail ends of adjacent movable rods, poke rods are attached to the left side and the right side of the bottom end of the spring frame, a vertical rod penetrates through the poke rods, and triangular blocks are distributed on the left side and the right side of the outer surface of the vertical rod in a crossed mode; a reset spring is fixedly connected between the bottom end of the vertical rod and the base, and a top rod is fixedly installed at the top end of the vertical rod. When a falling lifting hook falls onto a supporting plate, the weight of the lifting hook presses the supporting plate to downwards extrude a movable rod, the movable rod lifts a spring frame roller to make contact with an inclined rod and then drives a poke rod to move outwards at the same time, and after a triangular groove in the poke rod is combined with a triangular block on the surface of a vertical rod, the vertical rod is driven to continuously move upwards based on the thrust of a reset spring; and the vertical rod drives the ejector rod to upwards jack up the height table until the triangular block is clamped into the poke rod again, so that the next falling test height is automatically adjusted after each falling test, and the test data is more sufficient.

Description

A crane speed detection anti-fall device technical field

[0001] The invention belongs to the technical field of cranes, in particular to a crane speed detection anti-fall device. Background technique Crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range. Lift the heavy object from the pick-up location, displace the heavy object through the running, turning or luffing mechanism, drop the heavy object at the designated location and return Therefore, the detection of the action speed of the hook in the crane is mainly carried out by simulating the actual working conditions and during the operation process. Drop test. At present in the anti-fall test, test efficiency, accuracy all have relatively serious deficiencies, can not simulate the real The actual falling situation of the test data is not convincing, and it cannot automatically adjust the next fall after each drop test. The test h...

Images