Assisted parking and portal falling system for dam top portal crane and control method

Abstract

The invention discloses an assisted parking and portal falling system for a dam top portal crane and a control method. In order to overcome the problem of huge improvement cost and poor independence and expandability as an added electric control loop and a mechanical structure are coupled with an original dam top portal crane, the system comprises a man-machine interaction module, a central control module, an assisted portal falling module and an assisted parking module, wherein the man-machine interaction module displays a position, a state and a monitoring image of the original portal cranesystem and inputs an operating command; the central control module is connected to the original portal crane system by Ethernet to control parking and portal falling work; the assisted portal fallingmodule comprises a jacking mechanism fixedly arranged on a middle oblique beam to align a dam portal in an assisted manner and fall a gate; and the assisted parking module comprises an encoder and a proximity switch arranged on the original portal crane system to determine the position of a large vehicle by double signals and park the large vehicle in an appointed position in an assisted manner. The system is independent from the electric control loop and the mechanical structure of the original system without coupling, and performs one-key excision, so that the independence and expandabilityof the whole system are guaranteed, and the manpower can be reduced and the efficiency can be improved.

Description

technical field [0001] The invention relates to the field of dam crest door machine control, in particular to a dam crest door machine auxiliary parking and door dropping system and a control method. Background technique [0002] The dam crest gantry crane is a large gantry jack on the top of the dam. During the use of the dam, the dam crest gantry crane is a very critical part. It has an irreplaceable role in some electric equipment inside the dam, gate startup, internal maintenance, etc. role. [0003] With the continuous construction of the power plant, the workload of the team has also increased, with more and more tasks; however, the increase in the number of team members is very limited, and the aging phenomenon of team members has gradually become prominent. For the traditional dam crest door crane system, the retrieval and entry of the inspection door are manually operated step by step and confirmed step by step. For example, the door operator needs to point to the...

AI Technical Summary

Problems solved by technology

The system has made major changes to the original dam crest door operator system. The added electrical control circuit and mechanical structure are coupled with the original dam crest door operator system. The transformation cost is high, and the independence and expandability are poor.

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