A method and device for controlling the movement of the trolley of a vertical pressure station.

By controlling the movement of the pressure head trolley in stages and utilizing the layout pattern of the positioning square tubes and the results of switch sensing, the reliability problem of the positioning system of the pressure head trolley in the vertical pressure station was solved, achieving safe and reliable movement control and simplifying the hardware equipment.

CN117508949BActive Publication Date: 2026-05-26XUZHOU XUGONG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XUZHOU XUGONG ENVIRONMENTAL TECH CO LTD
Filing Date
2023-12-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing positioning system for the pressure head trolley of the vertical pressure station has high reliability requirements for proximity switch detection. Once the detection fails, it can easily lead to incorrect control commands, endangering the safe operation of the trolley.

Method used

By comprehensively utilizing the arrangement pattern of the positioning square tubes, the results of switch sensing, and the trolley running time, the movement of the pressure head trolley is controlled in stages, and it can be stopped in time under abnormal conditions, including precise control of the starting, walking, deceleration, and braking stages.

Benefits of technology

It achieves precise positioning and reliable control of the pressure head trolley, avoiding safety accidents caused by detection failure. The hardware is simple and easy to install and maintain. It monitors and records the running time in real time and automatically corrects the timeout duration.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a method and device for controlling the movement of a pressure head trolley in a vertical pressure station. The method includes: in the starting phase, controlling the pressure head trolley to accelerate and determining whether the trolley's direction of travel and the function position positioning switch sensing are correct; if correct, entering the travel phase; in the travel phase, determining whether the position / reset status of the workstation positioning switch is correct and whether the travel has timed out; if correct and the travel has not timed out, entering the deceleration phase; in the deceleration phase, predicting the position sequence of the workstation positioning switch based on the travel direction, determining whether the function position positioning switch sensing is normal and whether the deceleration has timed out; if normal and the deceleration has not timed out, entering the braking phase; in the braking phase, initiating the braking program, shutting off the travel output, and stopping the trolley. This invention utilizes the arrangement pattern of the positioning square tubes, the sensing results of the switches, and the trolley's running time to comprehensively judge the accuracy of the trolley's positioning results, stopping the trolley in time in case of abnormalities to avoid accidents.
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