A screw elevator with a concentricity self-adapting adjustment function

By using a hollow motor with concentricity adaptive adjustment function, the wear and comfort problems caused by concentricity deviation in screw elevators are solved. It achieves precise coaxial meshing and real-time lubrication, thereby improving the service life of the elevator and the riding experience.

CN122126726APending Publication Date: 2026-06-02QINGDAO YOUCHUANG HUAXIN INTELLIGENT EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO YOUCHUANG HUAXIN INTELLIGENT EQUIP MFG CO LTD
Filing Date
2026-04-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Uneven load distribution in the car and misalignment of the screw during installation in screw elevators can lead to increased local friction, wear, and reduced ride comfort on the meshing surfaces.

Method used

The screw elevator, which uses a hollow motor with concentricity adaptive adjustment function, achieves precise coaxial meshing between the screw and the threaded sleeve through the combined design of auxiliary screw, drive assembly, load assembly and adjustment guide assembly. Real-time lubrication and multi-dimensional guide structure ensure the smoothness and stability of elevator operation.

Benefits of technology

It effectively avoids localized friction on the meshing surface, which exacerbates wear on the threaded surface, improves the service life and operational reliability of the elevator, reduces maintenance costs, and enhances ride comfort and smoothness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of screw elevator technology and discloses a screw elevator with a hollow motor and a concentricity adaptive adjustment function. It includes an outer frame, with an auxiliary screw vertically arranged inside the outer frame. The bottom end of the auxiliary screw is rotatably connected to the bottom wall of the outer frame, and the top end of the auxiliary screw is rotatably connected to the top wall of the outer frame. The concentricity adaptive adjustment ensures that the screw and the threaded sleeve always maintain precise coaxial meshing, avoiding increased local friction on the meshing surface due to eccentricity. Furthermore, the precise, real-time oil lubrication of the drive assembly provides continuous lubrication protection for the coaxially meshing threaded surfaces.
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