Positive and negative vehicle control equipment, method, system and tower crane

Abstract

The invention discloses positive and negative vehicle control equipment, method, system and a tower crane. The equipment comprises a receiving device and a control device, wherein the receiving device is used for receiving motor rotation speeds of a target gear and a revolving mechanism; the control device is used for judging gear polarities according to the motor rotation speeds of the target gear and the revolving mechanism, when the gear polarities are opposite, the motor rotation speed of the revolving mechanism is controlled to be changed into the motor rotation speed which corresponds to that of the target gear according to a preset rule I, and when the gear polarities are the same, the motor rotation speed of the revolving mechanism is controlled to be changed into the motor rotation speed which corresponds to that of the target gear according to a preset rule II. By using the positive and negative vehicle control equipment, method, system and the tower crane, a fixed operation mode of operating personnel can be omitted, so that the revolving mechanism is automatically controlled to perform positive and negative vehicle operation only by directly pushing an operating handle to the target gear by the operating personnel, and therefore, the degree of freedom of the operation of the revolving mechanism is increased, and the requirement on the experience of the operating personnel is lowered.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a front and back vehicle control device, method, system and tower crane. Background technique [0002] At present, for construction machinery that uses forward gears and reverse gears, such as tower cranes, when the operator controls the forward and reverse vehicles, the operator needs to manually switch the gears in sequence according to personal experience, and then switch gears in sequence after the slewing mechanism is stationary. Perform reverse acceleration operation. Forward vehicle control means that the gear position of the operating handle changes without polarity change, and the motor steering does not change; reverse vehicle control means that the gear position of the operating handle changes and the motor steering changes. Relying on the experience of the operator to control the front and rear vehicles is inefficient, and when different operators perform the sa...

AI Technical Summary

Problems solved by technology

Relying on the experience of the operator to control the front and back vehicles is inefficient, and when different operators perform the same operation, the performance achieved by the control is quite different

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