Planetary transmission cable drum

By using a planetary drive cable reel design, the problems of large size, high weight, and insufficient transmission accuracy of traditional cable reels are solved, achieving miniaturization, lightweighting, and high-precision control of the equipment, ensuring the reliability and lifespan of cable winding and unwinding.

CN224377324UActive Publication Date: 2026-06-19HUNAN KEMEIDA ELECTRIC
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Patent Information

Application Number
CN202521276719.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-06-19
Estimated Expiration
2035-06-20

AI Technical Summary

Technical Problem

Traditional cable reels are bulky, heavy, and lack sufficient transmission precision, making it difficult to achieve miniaturization and high-precision control, and their maintenance and operation are cumbersome.

Method used

The cable reel adopts a planetary transmission type, including a junction box, cable reel, auxiliary gear box, gear box and slip ring box, integrating a planetary transmission structure. It achieves efficient transmission through the meshing of sun gear, ring gear and planet gears, and is equipped with a rotation limit switch to monitor the reel position.

Benefits of technology

To achieve miniaturization and lightweighting of equipment, improve transmission accuracy and reliability, ensure precise and controllable cable winding and unwinding speed, avoid excessive cable winding or stretching damage, extend service life and reduce maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of cable reel technology, specifically disclosing a planetary transmission cable reel, including a junction box fixed at the center of the cable reel. The cable reel is rigidly connected to a gearbox via a flange plate. The gearbox contains a planetary transmission structure, including a sun gear, a gear ring, planet gears, and a planet gear support arranged coaxially. The planet gear support is connected to a bidirectional positioning main shaft. An auxiliary gearbox is fixed above the gearbox, and its internal gear disk meshes with the output end of a motor, and is orthogonally transmitted to the helical bevel gear disk of the gearbox via a helical bevel gear. A slip ring box is fixed to the side wall of the gearbox and contains a slip ring assembly coaxially connected to the main shaft. This assembly is electrically connected to the terminals inside the junction box. The planetary transmission structure achieves its small size and lightweight design, and the multiple planetary gears distribute the load, improving torque capacity and transmission accuracy. The auxiliary gearbox precisely controls the cable winding and unwinding speed. An integrated rotary limit switch monitors the reel position in real time, preventing over-winding or tensile damage to the cable, thus improving reliability and lifespan.
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