Guidelines for the Operation of Hydraulic Anchor Rod Drilling Vehicle Support in Coal Mines（haoyun）

The editor of Shandong Haoyun Heavy Industry Machinery Co., Ltd. provides the following explanation on the operation guide for hydraulic anchor rod drilling support in coal mines:

When performing temporary and long-term support tasks, the hydraulic anchor drilling rig should be positioned 4800 millimeters away from the side wall of the roadway.

Before starting the support work, it is necessary to ensure the stability of the top and coal wall, with a maximum support height of 6.5 meters.

During drilling, do not touch the running drill rod with your hands, and avoid touching any moving parts during equipment operation to prevent injury caused by sudden descent of the hydraulic cylinder.

4. Ensure that the rotational speed during drilling is coordinated with the thrust to avoid damage to the drill rod and drill bit.

When using a hydraulic anchor drill to drill holes, it is necessary to turn on the water source, otherwise it may cause the drill bit to overheat, affect the drilling quality, and even damage the equipment seals.

If a decrease in water flow is found, the operation should be suspended and the drill pipe water hole should be cleaned before resuming.

When encountering significant drilling resistance or rock fragmentation, slight shaking of the control arm can be used to avoid drilling jamming.

Haoyun Heavy Industry adjusts the angles of the propulsion valve and motor valve according to actual needs to optimize the drilling effect.

9. Operators should stay away from the centerline of the drilling rig to prevent accidents in the event of drill pipe breakage.
10. When unloading the drill rod, the reverse drilling rig should not be used, and the drill rod joint should be manually rotated or tapped to release it.

When installing anchor rods and cables, the feet of the workers should avoid the fixed area of the first stage oil cylinder to prevent compression caused by the action of the oil cylinder.

12. All personnel working on the drilling rig must wear safety ropes.

If there is abnormal noise, vibration, overheating or leakage, the machine should be stopped immediately for inspection.

14. It is strictly prohibited for personnel to enter unsupported open areas.
15. Only after the drilling rig operator confirms that all actions are stable, other personnel of Haoyun Heavy Industry can carry out the work of replacing drill rods. Before starting the drilling rig, a warning must be issued and safety must be ensured.

After the drilling rig is in place, there should be no people around, and material delivery should be carried out behind the drilling rig.

17. When removing the anchor cable mixer, do not hold the anchor cable to prevent rebound and injury.
18. When moving the drilling rig, it is necessary to retract the rig and advance support to their original positions, and assign a dedicated person to supervise the cables.

Before starting homework, it is necessary to thoroughly inspect the surrounding environment to ensure safety.

When operating the hydraulic control lever, it should be smooth and pass through the middle position.

When stopping work or moving the drilling rig, the drilling arm should be retracted, and attention should be paid to the surrounding safety and environment to protect the cables.

22. When lifting the drilling rig, it is forbidden to operate the tracks to avoid damaging the hydraulic cylinder.
23. Drivers are not allowed to leave their posts or authorize non professionals to operate the drilling rig.