Manufacturing method of integral bending type side guard plate of hydraulic support

By using Q460 grade special steel plates with low carbon, low manganese, and Nb content, and optimizing cutting and bending processes, the problems of cracking and low efficiency in the processing of hydraulic support side guard plates have been solved, achieving efficient and crack-free side guard plate manufacturing.

CN119703660BActive Publication Date: 2026-06-16ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
Filing Date
2025-02-13
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing hydraulic support side guard plates are prone to cracking during bending, resulting in low processing efficiency, low utilization of cut materials, poor surface roughness, and stress concentration.

⚗Method used

Using Q460 grade special steel plates with low carbon and low manganese content and Nb, combined with special steel smelting and rolling process, the cutting and bending process parameters are optimized, the bending is carried out in three stages, the flame preheating process is eliminated, and the material arrangement method and assembly and welding process are optimized.

🎯Benefits of technology

It solved the problem of side panel bending and cracking, improved processing efficiency and material utilization, enhanced the flatness of the cut surface, avoided stress concentration, and resulted in a high yield and a production efficiency increase of more than 50%.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The application provides a manufacturing method of a hydraulic support overall bending type side guard, and specifically comprises the following steps: providing a special steel plate for a side guard; performing primary cutting on the special steel plate for the side guard according to a drawing to obtain two side guard to-be-bent pieces which are spliced together, wherein different cutting parameters are adopted for cutting a bending section and cutting an outer shape contour; respectively performing bending on the side guard to-be-bent pieces along different bending lines to obtain a bent piece, wherein a bending down process of the bent piece is divided into three stages, and each stage corresponds to different bending parameters; cutting the bent piece into two parts; and respectively welding a guide rod seat and a rib plate on each part. The method can avoid cracking of the hydraulic support side guard and improve processing efficiency.
Need to check novelty before this filing date? Find Prior Art