Main Features:
The roadway repair machine (also known as a roadway maintenance
machine) is a multifunctional crawler-type surrounding rock repair
equipment designed specifically for underground engineering such as
coal mine shafts. Its core function is to address roadway
deformation issues like roof subsidence, floor heave, and rib
convergence. Integrating crushing, excavation, loading, transfer,
and support assistance into one unit, it significantly replaces
manual labor and enhances safety and efficiency in underground
operations.
Core Structure and Configuration
Crawler Travel Chassis: Narrow body and low height, suitable for confined underground
spaces; the crawler tracks exert low ground pressure, providing
strong climbing ability and passability. The entire machine
features an explosion-proof design to meet coal mine safety
standards.
Hydraulic Working Arm + Quick-Change Attachments: The working arm
can rotate ±180° and swing in multiple directions. Standard equipment includes a
bucket and a hydraulic breaker, with optional milling heads,
hydraulic shears, and beam handlers. This enables a full range of
operations including floor lifting (bench cutting), rib widening,
slot milling, rock breaking, hoisting, and support coordination.
Power and Conveying System: Mostly driven by flameproof electric motors powering a hydraulic
system (common ratings include 37kW and 55kW). Equipped with a
scraper conveyor or belt, it can directly load gangue into mine
cars or belt conveyors. Features an automatic cable reel and spray
dust suppression.
Control System: Utilizes proportional pilot control for smooth operation. Includes
working condition monitoring and fault alarms. Some models support
remote or semi-remote control.
Applicable Scenarios and Operation Process
Scope of Application: Coal roadways, semi-coal rock roadways, and full rock roadways. It
is used for underground roadway floor lifting (bench cutting), rib
widening, roof picking, digging water ditches, cleaning coal under
belt conveyors, and crushing and removing debris in underground
chambers and tunnels such as those caused by roof falls.
Typical Process: Survey the cross-section → Determine the repair plan → Switch attachments (use a breaker for hard rock/concrete, or a
bucket for loading debris) → Transfer and remove debris → Trim the cross-section → Assist with support installation.
