Anti-unbalance loading three-section lifting column structure with double-lead-screw synchronous thrust

By using a dual-screw synchronous thrust structure and a nested aluminum cylinder design, the problems of vibration and low transmission efficiency in traditional lifting columns under eccentric loads are solved, achieving stable and efficient production, and making it suitable for logistics warehouses and automated production lines.

CN224226557UActive Publication Date: 2026-05-12SHENZHEN DINGYING INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202521310424.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-05-12
Estimated Expiration
2035-06-25

AI Technical Summary

Technical Problem

Traditional three-section lifting columns are prone to vibration and have low transmission efficiency when subjected to eccentric loads, failing to meet the requirements for stability and high-efficiency production.

Method used

It adopts a dual-screw synchronous thrust structure, including a left-hand ball screw and a right-hand ball screw, which achieve synchronous rotation through a gearbox and motor drive. Combined with a nested aluminum cylinder structure, it avoids the defects of chain wear and hollow screws, and enhances stability and transmission efficiency.

Benefits of technology

It enables stable operation of the lifting column under off-center load conditions, improves transmission efficiency and production efficiency, reduces the risk of goods falling, extends equipment life, and adapts to complex working environments.

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Abstract

The utility model discloses an anti-unbalance loading three-section lifting column structure with double-screw synchronous thrust, and relates to the technical field of mechanical transmission and control. According to the utility model, the power of the motor is transmitted to the reduction gearbox, and after speed reduction and torque increase, the power is transmitted to the gearbox through the transmission gear set to drive the left-handed ball screw and the right-handed ball screw which are horizontally parallel to each other to rotate synchronously. The ejector rod is in threaded connection with the outer wall of the right-handed rotation ball screw, the screw rods rotate to enable the ejector rod to do linear motion, the two screw rods synchronously and reversely rotate to achieve simultaneous lifting and load pushing or pulling on the two sides, compared with a screw rod and chain structure, the double-screw-rod structure is free of chains, the gap problem caused by chain abrasion is avoided, stable operation of the lifting column can be guaranteed, and the service life of the lifting column is prolonged. And the cargo falling risk is reduced. Meanwhile, the design of a hollow lead screw is abandoned, the two solid lead screws are adopted, the strength is higher, the size and weight are smaller, the transmission efficiency is higher, continuous work can be achieved in an automatic production line, and the production efficiency is improved.
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