A hydraulic support with a welding-free process support

The design of the hollow guide sleeve and the two-stage adjustment components solves the problem of metal deformation during the welding process of the hydraulic support, enables rapid adjustment and disassembly of the support tool, reduces material waste, lowers labor intensity, and improves production efficiency.

CN224406794UActive Publication Date: 2026-06-26ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing hydraulic support welding process suffers from metal deformation due to welding thermal cycling, and the existing process support tools have poor versatility, serious material waste, high labor intensity, and low reuse rate.

Method used

It adopts a hollow guide sleeve and a two-stage adjustment assembly, including a support threaded sleeve and an adjusting threaded rod. The support span can be precisely adjusted through a trapezoidal thread structure. Mechanical pre-tightening is used to replace welding spot fixing, and elastic deformation is used to store energy to offset welding shrinkage. Combined with a self-locking mechanism and a composite threaded connecting rod structure, it can achieve rapid support and disassembly.

Benefits of technology

It effectively controls welding deformation, reduces material waste, increases reusability, reduces labor intensity, improves production efficiency, and enables rapid support and disassembly.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224406794U_ABST
    Figure CN224406794U_ABST
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Abstract

The utility model provides a kind of welding process support exempt from of hydraulic support, including hollow guide sleeve, two-stage adjusting assembly and adjusting drive assembly respectively arranged in the both ends of hollow guide sleeve;Two-stage adjusting assembly includes support silk cover slidingly arranged in hollow guide sleeve, as one-stage adjusting mechanism, adjusting screw rod is threadedly connected in the support silk cover, the outer end of adjusting screw rod extends outward along the axial direction of hollow guide sleeve, as two-stage adjusting mechanism;Adjusting drive assembly is used to drive support silk cover to move along hollow guide sleeve, adjusting drive assembly is equipped with self-locking mechanism.The welding process support exempt from of hydraulic support can be used to solve the deformation shrinkage problem of welding point, and can be repeatedly used.
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