A hydraulic support front automatic bottom net laying device and a net laying method

By installing an automatic bottom netting device on the hydraulic support, and utilizing the movement of the netting box and pressing roller in conjunction with the scraper conveyor to achieve automatic netting, the problems of soft rock bottom settling and the safety hazards of manual netting were solved, thus achieving efficient and safe bottom support.

CN122407247APending Publication Date: 2026-07-17CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2026-06-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, soft rock bases are prone to sinking during hydraulic support. Existing devices are complex in structure and have high modification costs, while manual netting poses safety hazards and is inefficient.

Method used

Design an automatic bottom net laying device for hydraulic support frame, including a net changing box and pressing roller. The device uses the movement of hydraulic support and scraper conveyor to achieve automatic net laying. It has a simple structure and can be directly installed on the existing hydraulic support without the need for an additional hydraulic drive system. Automatic net laying is achieved through the cooperation of diamond-shaped metal mesh and pressing roller.

Benefits of technology

It achieves fully automated net laying, reduces labor intensity, eliminates safety hazards, improves the load-bearing capacity and support effect of the base plate, and is compatible with various types of hydraulic supports, especially suitable for soft rock and water-rich base plates.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of coal mine fully mechanized working face support equipment, disclose a kind of hydraulic support front automatic bottom net laying device and net laying method, including four-column hydraulic support, the bottom of the four-column hydraulic support is fixed with hydraulic support base, the bottom side of the hydraulic support base is equipped with push jack, the output end of the push jack is connected with scraper conveyor, the top side of the scraper conveyor is provided with metal support rod. By changing net box and pressing roller, without additional hydraulic drive system, can be directly installed above the existing hydraulic support cable groove, without modification to the main structure of support, easy to install, low cost, realize fully automatic net laying, and using the inherent movement of hydraulic support and scraper conveyor realizes automatic net, without manual intervention, greatly reduce the working time of worker in front of the frame, reduce labor intensity, fundamentally eliminate the safety hazard of manual net laying.
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