Bridge and portal crane trolley walking deviation rectifying and rail gnawing prevention device and method

Abstract

The invention provides a bridge and portal crane trolley walking deviation rectifying and rail gnawing prevention device. The bridge and portal crane trolley walking deviation rectifying and rail gnawing prevention device comprises two sets of information acquiring devices, a main control unit and a flexible landing leg walking control frequency converter, wherein the two sets of information acquiring devices are used for measuring the actual walking distance of a flexible landing leg of a crane, the actual walking distance of a rigid landing leg of the crane and the space values of wheel flanges at the two ends of each landing leg and a track; the main control unit is connected with the two sets of information acquiring devices and generates a flexible landing leg control instruction according to the actual walking distance of the flexible landing leg, the actual walking distance of the rigid landing leg and the space values of the wheel flanges at the two ends of each landing leg andthe track; and the flexible landing leg walking control frequency converter is connected with the main control unit and controls the walking speed of the flexible landing leg according to the flexible landing leg control instruction. The invention further provides a deviation rectifying and rail gnawing prevention method. It can be guaranteed that the walking deviations of the two sides of the crane and the space between the wheel flanges and the track are in the tolerance range, and the rail gnawing phenomenon is avoided. The bridge and portal crane trolley walking deviation rectifying and rail gnawing prevention device and method have the advantages that the design is scientific, practicality is high, the structure is simple, and measuring is accurate.

Description

technical field [0001] The invention relates to an automatic deviation correcting device for a crane, in particular to a deviation correcting and anti-gnawing rail device and method for a bridge and a gantry crane. Background technique [0002] Bridge and gantry cranes have been widely used in industrial production, and are the most widely used and most numerous hoisting machinery. Due to the large span, low horizontal stiffness, and many parts of the bridge and gantry cranes during use, it is difficult to fully guarantee the installation accuracy of the transmission mechanism, etc., the bridge and gantry cranes will have different degrees of deviation or rail gnawing during operation. phenomenon appears. The deviation of the cart will cause great harm to the bridge and gantry cranes. It greatly threatens the safe operation of the cranes, increases the operation and maintenance costs, and seriously affects their production safety and production efficiency. Therefore, it is...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing deviation correction and anti-gnawing rail devices of bridges and gantry cranes only perform deviation correction and anti-gnawing rails based on the walking deviation of the two legs, and the effect is sometimes not ideal

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