Compact normally-closed clutch winding device

By integrating a normally closed clutch device into the winch and using high-pressure oil control, the problem of power connection between the drum and the hydraulic motor was solved, achieving reliable connection and disconnection, and improving the structural compactness and service life of the equipment.

CN224279614UActive Publication Date: 2026-05-26NINGBO FLAG TRANSMISSION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FLAG TRANSMISSION CO LTD
Filing Date
2025-08-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The clutch device of the existing winch is installed at the end of the drum, which cannot completely cut off the power connection between the hydraulic motor and the drum. This causes the drum to drag the hydraulic motor back during rapid descent, affecting its service life.

Method used

Design a compact normally closed clutch hoisting device, integrating the normally closed clutch device inside the drum, and controlling the connection and disconnection of the drum and hydraulic motor through external high-pressure oil control, and controlling the power transmission by utilizing the separation of friction steel plates and friction powder plates.

Benefits of technology

This technology enables reliable connection and disconnection between the drum and the hydraulic motor, improving the device's structural compactness and ease of operation, and extending the equipment's service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224279614U_ABST
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Abstract

The utility model discloses a compact normally-closed clutch winding device which comprises a machine frame, a winding drum is arranged on the machine frame in the horizontal direction, a speed reducer is arranged at one end of the winding drum, a right fulcrum shaft is arranged at the other end of the winding drum, and the output end of the winding drum is connected with a rope winding device. The speed reducer is connected with the winding drum through a main shaft, a normally-closed clutch device is arranged between the speed reducer and the right fulcrum shaft, and the speed reducer is connected with a hydraulic motor. According to the compact normally-closed clutch winding plant, the normally-closed clutch device is integrated in the winding drum, and the connection and disconnection of the winding drum and the hydraulic motor can be realized by controlling the normally-closed clutch device through external high-pressure oil; the structure is compact, operation is convenient, and reliability is high.
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