In mining, tunneling and other engineering fields, the efficient operation of rock drills plays a crucial role in project progress and quality.
In order to help related enterprises to improve operational efficiency, engineering experts have summarized a complete set of guidelines for the efficient use of rock drills.
Adequate preparation before operation is the basis for the performance of rock drills. After a newly purchased rock drill is unsealed, it should be disassembled and cleaned with internal high viscosity anti-rust grease, lubricated with lubricant in all moving parts, and then cleaned with lubricant in all moving parts.
Apply lubricating oil to all moving parts, and connect the air pressure line for small air pressure test run. The automatic oiler should be filled with 20#, 30# or 40# oil, cleaned and capped.
Cover it with a cap. The wind pressure should be stabilized at 0.4 - 0.6MPa, and the water pressure should be maintained at 0.2 - 0.3MPa. Use qualified brazing tools, clean the pipeline, insert the brazing tails and make sure that they rotate smoothly, and tighten the connecting bolts.
Use qualified brazing tools, clean the pipeline, insert the braze tail and make sure it rotates smoothly, tighten the connecting bolts, check the status of the propeller, air leg and other parts, and make sure the hydraulic system of the hydraulic rock drill is well sealed.
Fine control during operation is the key to improve efficiency. Run at low speed during the hole opening stage, and increase the speed after the hole depth reaches 10-15mm, and keep the rod feeding in a straight line.
After the hole depth reaches 10 - 15mm, increase the speed to keep the rod feeding in a straight line. Reasonably adjust the shaft thrust to avoid equipment abnormality caused by insufficient or excessive. When there is jamming, first reduce the shaft thrust force, stop the machine if it is ineffective, and then use a wrench to assist in turning the rod.
Use a wrench to assist in turning the brazing rod, and cooperate with the medium air pressure to release the jam. Pay close attention to the state of powder discharge to ensure that the mud flows out normally, and deal with the unsmooth powder discharge in time. Monitor the lubrication
system, ensure the proper amount of oil injection. Pay attention to listen to the sound of the equipment, observe the operation situation, and replace the failed brazing tools in time. Operate the upward-type rock driller to precisely control the air leg
Avoid weak areas and residual holes in the rock formation to prevent geologic disasters. Make full use of the hole opening pattern to adapt to the operation of large inclined rock face.
Equipment maintenance is the guarantee for continuous and efficient operation. Regularly and comprehensively check the equipment according to its instruction manual, including wear and tear of parts, loosening of fasteners,
hydraulic and lubrication system status, etc. Keep the equipment clean, regularly clean the rock dust and oil, and lubricate according to the cycle and lubrication point. Replace the worn parts in time according to the use condition and use reliable quality parts.
Replace the worn parts in time according to the use condition and use reliable quality parts. When the equipment is not used for a long time, store it in a dry, ventilated environment without corrosive gases and do a good job of protection.
Following these points, the enterprise is expected to greatly improve the efficiency of rock drill, reduce the loss of equipment, and ensure the safe and efficient progress of the project.
safety and efficiency of the project.
Translated with DeepL.com (free version)
