How to maintain down-the-hole drill bits and down-the-hole hammer?
Down-the-hole hammer, like vehicles, require proper use and maintenance. If the vehicle is well maintained, it can travel 400,000 kilometers. If not maintained well, the vehicle can be scrapped after 10,000 kilometers. Next, the editor will learn about the use and maintenance of down-the-hole impact drill bits.
1. Inspection before use
If it is a new down-the-hole hammer or a down-the-hole hammer that has been maintained after use, you need to carefully check before use that the front and rear joints of the down-the-hole hammer are connected reliably with the outer casing, that the piston moves freely, that the drill bit and the down-the-hole hammer are connected correctly, and that the relevant drill The rod, drilling rig and air compressor are ready and the connecting parts are reliable for drilling operations. If used, unmaintained down-the-hole hammer require maintenance before use.
2. Lubrication during use
The main purpose of lubrication is to reduce wear, prevent rust, resist oxidation and seal gaps. The down-the-hole hammer uses the high-frequency movement of the compressed air-driven piston to provide rock-breaking impact power to the drill bit. Any high-speed moving parts need good lubrication, and the down-the-hole hammer also needs good lubrication. Every down-the-hole hammer requires lubrication before and during use. If there is no lubrication or poor lubrication, the internal moving parts of the down-the-hole hammer, especially the piston, will cause early wear and fatigue, and form early fatigue cracks on the piston surface, seriously affecting the service life of the piston, increasing the cost of use, and bringing consequences to the construction. inconvenient. Proper lubrication of early fatigue cracks caused by poor lubrication (left) and non-lubrication (right) of the piston can not only improve drilling efficiency, but also extend the service life of the down-the-hole hammer. High-quality diamond lubricants have good wear resistance, rust resistance, oxidation resistance, foam resistance and other properties. When there is foam around the drill hole, more lubricant injection is required.
3. Maintenance after use
Proper and timely maintenance can also extend the service life of down-the-hole impact components and greatly reduce usage costs. Clean down-the-hole impact components promptly. In many cases, the outer casing is worn or has reduced impact performance due to wear of internal components. At this point, the down-the-hole impact requires maintenance and more detailed inspection. If every component is in good condition, the lubricant needs to be installed correctly according to the assembly diagram. However, in order to ensure the best performance of the down-the-hole hammer, the down-the-hole hammer must be maintained regularly.
