A main drive of a heading machine and a method for repairing a sealing ring thereof
By using composite wear-resistant belts and ring repair components to heat-extend and repair the sealing rings of tunneling machines, the problem of repairing damaged sealing rings in underground tunnels has been solved, ensuring the stable operation of the equipment.
CN120798358BActive Publication Date: 2026-06-26CHINA RAILWAY CONSTR HEAVY IND
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTR HEAVY IND
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Within the confined space of an underground tunnel, the sealing ring of a tunneling machine is difficult to repair effectively after it is damaged, which affects the operating efficiency of the equipment.
Method used
The system uses composite material wear-resistant belts and ring repair components to repair damaged sealing rings through heating and stretching. Combined with a ring repair control module for temperature detection and control, it enables replaceable welding repair of sealing rings.
Benefits of technology
The reliable repair of the sealing ring was achieved within a limited space, ensuring the stable operation of the tunneling machine and avoiding construction interruptions caused by sealing ring damage.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN120798358B_ABST
Abstract
The application belongs to the technical field of heading machine, and particularly provides a heading machine main drive and a sealing ring repairing method thereof, which comprises a driving structure, a bearing structure, a sealing structure and a sealing repairing structure; the sealing repairing structure is arranged on the bearing structure, and the sealing repairing structure comprises a composite wear-resistant strip, a ring repairing assembly and a ring repairing control module; the ring repairing assembly is detachably attached to the composite wear-resistant strip and is used for assisting heating of the composite wear-resistant strip; the ring repairing control module is used for detecting and controlling the heating temperature of the ring repairing assembly; and the composite wear-resistant strip is used for repairing the damaged outer sealing ring and / or inner sealing ring. The application provides a heading machine main drive which can weld a wear-resistant strip to a damaged sealing ring in a limited space of an underground chamber, so as to realize replaceable welding and repairing operation of the sealing ring in the chamber.
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