A device and method for measuring an extension-retraction stroke of a hydraulic cylinder is disclosed. The device includes a fixed sleeve, a telescopic damper and a distance-measuring roller. The fixed sleeve includes a bearing sleeve, a flexible sealing sleeve, a connecting fixing lug plate, and a roller-limiting lug plate. The distance-measuring roller includes an elastic contact sleeve, a shaft encoder, and a position-limiting connection shaft. Two fixed sleeves, eight telescopic dampers, and four distance-measuring rollers can be assembled into the device. When the hydraulic cylinder is retracted, a telescopic section of the hydraulic cylinder drives shaft encoders of four distance-measuring roller to rotate, and the extension retraction stroke of the hydraulic cylinder can be calculated by a direction of rotation and the number of turns of rotation of the shaft encoder.


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    Title :

    DEVICE AND METHOD FOR MEASURING EXTENSION-RETRACTION STROKE OF HYDRAULIC CYLINDER


    Contributors:
    PANG YIHUI (author) / REN SHIHUA (author) / WANG CHEN (author)

    Publication date :

    2023-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E21C Bergbau oder Steinbruchbetrieb , MINING OR QUARRYING / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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