A device for detecting the distance between the ground rail and the overhead rail of a stacker in real time

By using barcode sensors and rangefinders to monitor the distance between the ground and vertical tracks in real time, the safety hazards of stacker crane derailment and jamming have been resolved, achieving automated safety monitoring and efficient maintenance.

CN117185195BActive Publication Date: 2026-07-10WUXI ZHONGDING INTEGRATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI ZHONGDING INTEGRATION TECH CO LTD
Filing Date
2023-09-18
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing stacker cranes cannot detect the distance between the ground and top rails in real time, leading to safety hazards such as derailment and jamming. Furthermore, maintenance efficiency is low, and relying on manual inspection makes it difficult to guarantee safety.

Method used

The system uses a barcode sensor to identify signals on the barcode strip, monitors the distance between the ground track and the rail in real time using a barcode rangefinder, and triggers an alarm at the preset distance limit position. The system automatically records and adjusts the distance to prevent derailment and jamming.

Benefits of technology

It has enabled automated safety monitoring of stacker cranes, reduced downtime, improved production efficiency and safety, and reduced maintenance difficulty and cost.

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Abstract

The application provides a device for real-time detection of the distance between the ground rail and the overhead rail of a stacker, which comprises a vertical guide wheel matched with the overhead rail of the stacker, the vertical guide wheel being fixed on a base, the base being arranged on the upper surface of an upper plate of a support, a linear guide rail sliding rod being further arranged on the upper plate of the support, the upper end of the linear guide rail sliding rod being fixed on the upper surface of the upper plate of the support through a fixing ring and a linear bearing, the lower end being connected to a supporting plate, the supporting plate being arranged on a guide wheel bending plate; springs are arranged on the outer periphery of the linear guide rail sliding rod, the springs being arranged between the upper plate of the support and the supporting plate; a support and a bar code range finder are arranged on the lower surface of the upper plate of the support, the bar code range finder being electrically connected to the controller of the stacker; a bar code tape is further arranged on the guide wheel bending plate, the bar code range finder can identify the information on the bar code tape and transmit the identified information to the controller of the stacker, so that the stacker is automatically and real-timely monitored to see whether it is derailed or not, and whether the overhead rail and the upper cross beam are stuck to cause the stacker to stop, thereby reducing the risk of abnormality of the stacker.
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