Control system for loading and arm retracting of crane and automobile crane

Abstract

The invention provides a control system for loading and arm retracting of a crane and an automobile crane, the control system comprises a crane jib, a rotation detection device, an amplitude variation detection device and a control device, the crane jib is carried on a rotation device and carries an amplitude variation device; the control device communicates with the rotation device, the amplitude variation device, the rotation detection device and the amplitude variation detection device and is configured to receive the real-time rotation position sent by the rotation detection device and the real-time amplitude variation position sent by the amplitude variation detection device and control the rotation device to rotate according to the preset rotation reference position and the real-time rotation position. And according to the preset amplitude variation reference position and the real-time amplitude variation position, the amplitude variation device is controlled to perform amplitude variation motion, so that the axis of the crane jib is aligned with the center line of the jib bracket. By means of the technical scheme, the axis of the crane jib can be automatically aligned with the center line of the jib support, and therefore the phenomenon that the jib support is cracked up when an operator operates independently is avoided.

Description

technical field [0001] The invention belongs to the technical field of truck cranes, and in particular relates to a control system for loading and retracting arms of a crane and a truck crane. Background technique [0002] As a kind of lifting and handling equipment, the truck crane has two functions of hoisting and driving. During hoisting, the boom can be lifted and stretched out for hoisting operations. After the hoisting is completed, the boom needs to be placed on the boom bracket, that is, the vehicle returns to a driveable state. When placing the boom on the boom bracket, since the length of the boom is usually more than 10 meters, it is inconvenient for the operator to observe in the control room, and it is necessary to rely on the command of the personnel outside the operation room to align the axis of the boom with the axis of the boom bracket. The center line must be aligned, otherwise it is easy to damage the boom bracket during the lowering process of the boom ...

AI Technical Summary

Problems solved by technology

[0003]Aiming at the above defects or deficiencies in the prior art, the present invention provides a control system for lifting the arm of a crane and a truck crane, aiming to solve the problem of controlling During the lowering of the boom, the technical problem of crashing the boom bracket is likely to occur when the operator operates alone

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