Chain tensioning device of scraper conveyor

By optimizing the intermediate gearbox's two-stage transmission design and its same-side layout, the problems of difficult installation and transmission failure of traditional scraper conveyor hydraulic chain tensioning devices in underground coal mines have been solved. This has resulted in a compact design and efficient torque output, improving the equipment's reliability and adaptability.

CN223950057UActive Publication Date: 2026-02-27SHANGHAI POHU DRIVE SYST CO LTD
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Patent Information

Application Number
CN202520560194.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-27
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Traditional hydraulic chain tensioning devices for scraper conveyors are difficult to install in underground coal mines, occupy a large space, and are prone to transmission failure when the load suddenly increases, affecting the reliability of the equipment.

Method used

The system employs a two-stage transmission design with an intermediate reduction gearbox and a compact layout of the hydraulic motor and gearbox on the same side. Combined with an optimized meshing structure, a two-stage transmission path is formed to increase torque output, and a lubrication structure is used to reduce friction loss.

Benefits of technology

It significantly reduces the axial dimension of the device, improves installation flexibility and adaptability, enhances overload protection performance, ensures stable operation of the equipment in confined environments, and improves reliability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of scraper conveyors, in particular to a chain tensioning device of a scraper conveyor. Comprising a hydraulic motor, a gear box and a middle reduction gearbox, the middle reduction gearbox comprises a transition box body, a transition box cover and a transmission assembly arranged in the transition box cover, and the hydraulic motor and the gear box are installed on the transition box body of the middle reduction gearbox on the same side. Through the two-stage transmission design of the middle reduction gearbox, the same-side compact layout of the hydraulic motor and the gearbox and the optimized meshing structure, the size of the device is remarkably reduced, the torque output capacity and the space adaptability are improved, meanwhile, the overload protection performance is enhanced, and a more efficient and reliable solution is provided for underground operation of a coal mine.
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