Monitoring apparatus and control method of crane hoisting vertical deviation angle

摘要

Disclosed in the present invention is a monitoring apparatus of crane hoisting vertical deviation angle. The monitoring apparatus uses a dual-axis inclinometer to measure the vertical deviation angle of the lifting pulley block of a crane, wirelessly transmits the angle signal, and dynamically displays the angle by a control display. The control method adopts the monitoring apparatus mentioned above. The monitoring apparatus thereof fixes a measuring platform on the outside of the guard plate of the movable pulley of the lifting pulley block, and the dual-axis inclinometer is fixed on the measuring platform surface, which becomes a horizontal plane when the crane hoisting vertical deviation angle is 0 degree. The present invention can detect and monitor the verticality of the lifting pulley block in real time, and avoid the risk of non-vertical crane hoisting.

主权项

1. An apparatus for monitoring a hoisting verticality deviation angle of a crane, comprising:
a measuring platform fixed on outside of a guard plate of a movable pulley of a lifting pulley block of the crane, said measuring platform satisfying the requirement that its surface is horizontal when the hoisting verticality deviation angle is 0 degree; a dual-axis inclinometer, fixed on the surface of the measuring platform, measuring an angularity of the surface of the measuring platform relative to a horizontal plane to obtain the hoisting verticality deviation angle; a wireless transmitter, also fixed on the outside of the guard plate of the movable pulley of the lifting pulley block of the crane, to transmit dual-axis verticality deviation angle signals representing dual-axis verticality deviation angles generated by the dual-axis inclinometer; a wireless receiver enclosed in a cab of the crane to receive said dual-axis verticality deviation angle signals; a control display, also enclosed in the cab of the crane, used to process said dual-axis verticality deviation angle signals into the hoisting verticality deviation angle and display said hoisting verticality deviation angle.