Anti-rotation positioning device for a crane spreader

By combining the steering assembly, rotary potentiometer, and braking assembly, the problem of inaccurate rotation of the crane's lifting device is solved, achieving automated positioning and improving lifting efficiency and safety.

CN122355162APending Publication Date: 2026-07-10WEIFANG SIME DARBY PORT CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WEIFANG SIME DARBY PORT CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Crane lifting equipment is prone to inaccurate positioning due to inertial rotation during lifting, which affects lifting efficiency, requires manual support, and poses safety hazards.

Method used

By employing a combination of steering components, rotary potentiometers, controllers, and braking components, the rotation status of the spreader is monitored in real time and automatically controlled via drive motors and braking components to prevent rotation and ensure accurate positioning.

Benefits of technology

It enables rapid and accurate positioning of the spreader, improves lifting efficiency, avoids the risks of manual support, and ensures safety and the integrity of equipment and goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an anti-rotation positioning device for crane lifting equipment, relating to the field of lifting equipment technology. The invention includes a lifting equipment body, comprising a lifting beam and a boom. A rotating shaft is fixedly connected to the bottom of the boom, and a turntable is rotatably connected to the outside of the rotating shaft. Two symmetrically distributed tie rods are fixedly connected between the outside of the turntable and the lifting beam. A mounting frame is fixedly connected to the bottom of the turntable, and a connecting shaft is rotatably connected to the top center of the mounting frame. A steering assembly includes a rotating seat fixedly connected to the top center of the lifting beam, a central rotating shaft rotatably connected inside the rotating seat, a flywheel fixedly connected to the outside of the central rotating shaft, and a drive motor fixedly connected inside the mounting frame. This invention, through the steering assembly, rotating potentiometer, and controller, can effectively suppress the irregular rotation of the lifting equipment body and the lifted load due to inertia, achieving lifting equipment positioning, improving lifting operation efficiency, and avoiding unexpected risks.
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