Narrow Gauge Locomotive Current Situation And Basic Structure Of Main Working Organizations

Since the 1970s, fully hydraulic drilling rigs have been widely promoted in Underground Mining Locomotive around the world. There are many types and specifications of Narrow Gauge Locomotive. The power of the towing type is 43kW, the weight of the machine is less than 2.5t, the axial pressure of the self-propelled type is 7-14kN, the power is 42 (single machine)-88 (double machine) kW, and the machine weight is 8- 14.5t. When the Narrow Gauge Locomotive pneumatic mining drilling rig drills annular holes with a diameter of 48-57mm and a depth of 10-25m, the bench efficiency reaches 100-120m, and the hydraulic mining rig has a bench efficiency of 120-180m. When drilling fan-shaped holes, the bench efficiency is 160-260 and 240-300m.

The Narrow Gauge Locomotive main working mechanism is the drill arm. It has four types: stacking type, single pendulum type, compound pendulum type and ring type. Stacked boom and compound swing boom are used for parallel and sector drilling rigs. The single-swing boom is used for sector hole drilling rigs. 

Narrow Gauge Locomotive The stack-type drill arm is lowered when the drilling rig is running, and can be tilted forward by 30° vertically. When the side swing hydraulic cylinder is telescopic, the upper axle frame slides along the top column, so that the lower shaft of the crank arm swings to realize the center displacement of the fan-shaped hole. When the side swing hydraulic cylinder is fixed and the fan-shaped swing hydraulic cylinder is telescopic. The propeller is made to swing in a fan shape. When the length of the fan-shaped swing cylinder is fixed and the side-swing hydraulic cylinder is telescopic, the crank arm drives the propeller to move. Due to the upper axle frame, the fan-shaped swing hydraulic cylinder, the crank arm and the lower lug form a parallel four-bar linkage .

So as to realize the propeller translation. When the Narrow Gauge Locomotive translation hydraulic cylinder is stationary and the fan-shaped swing cylinder is telescopic, the rotary handle drives the propeller tray to swing in a fan-shaped manner around the upper hinge point of the support arm. When the fan-shaped swing hydraulic cylinder is stationary and the translation hydraulic cylinder is telescopic, the support rod Drive the propeller to rotate around its lower end hinge according to the axis to realize the displacement of the fan-shaped center. 

When the length of the Battery Locomotive fan-shaped swing hydraulic cylinder is adjusted to be equal to the length of the support rod, the translational hydraulic cylinder is extended to realize the translation of the propeller. The propeller of the ring drill boom is hinged in the vertical axis of the vertical drilling rig, and is driven by the slewing mechanism to rotate 360° in the plane of the vertical axis of the vertical drilling rig, or the swing hydraulic cylinder pushes it to incline back and forth, at 0-±30 Rotate in any plane of °, equipped with a swing angle locator, the hole orientation positioning error is less than or equal to ±1°, and the drill arm is fixed with a hydraulic top column after positioning. The rest of the structure and action principle are the same as the drilling rig.

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