Track inspection device

By setting specific wheel sets and guide wheels on the trolley, and combining the determination and processing of curve entry and contact time, the problem of not being able to accurately determine the position of the guide rail in the prior art is solved, and low-cost and high-accuracy guide rail inspection is achieved.

CN115892901BActive Publication Date: 2026-07-17DAIFUKU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DAIFUKU CO LTD
Filing Date
2022-09-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing track inspection devices fail to effectively utilize the movement of the trolley to determine whether the guide track is positioned within the appropriate range, resulting in high sensor installation costs and insufficient accuracy in judgment.

Method used

Design a track inspection device that uses a right front wheel, left front wheel, right rear wheel, left rear wheel and guide wheel on a trolley. Combined with the judgment and processing of the curve entry period and contact period, the device uses the different travel modes of the trolley in straight sections and curve sections to determine whether the setting position of the guide track is within the appropriate range.

Benefits of technology

It enables precise inspection of the guide rail setting position based on trolley movement, reduces the cost of sensor use, and improves the accuracy of judgment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115892901B_ABST
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Abstract

The track inspection device (1) includes a trolley (10) that travels along a pair of travel tracks (80) and guide tracks (83) in the travel direction (X). The track inspection device (1) also includes a determination unit that performs contact period determination processing, curve entry period determination processing, and track inspection processing. The contact period determination processing is the process of determining the period when the guide wheel (40) contacts the guide track (83), i.e., the contact period. The curve entry period determination processing is the process of determining the period when the right front wheel (24) and the left front wheel (23) enter the curve section (72) from the straight section (71), i.e., the curve entry period. The track inspection processing is the process of determining whether the setting position of the guide track (83) is within an appropriate range based on the sequential relationship between the curve entry period and the contact period.
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