Replacement Method and Precautions for Threaded Button Bit of Top Hammer Rock Drilling

Button bit is an important component in top hammer rock drilling, which is widely used in various industries such as mining, construction, and quarrying. It is designed to drill holes in hard rock formations, making it a crucial tool for these industries. However, like any other tool, the button bit also needs to be replaced or repaired at some point in time. In this article, we will discuss the replacement method and precautions for threaded button bits in top hammer rock drilling.

Signs that indicate the need for button bit replacement

Button bit is a wear part that can become dull and blunt after multiple drilling operations. Some signs that indicate the need for button bit replacement are:

• Reduced drilling speed

• Increased fuel consumption

• Reduced drilling accuracy

• Excessive wear and tear of the button bit

• Increased vibration during drilling

If you notice any of these signs during drilling, it is recommended that you inspect the button bit to determine its condition and whether it needs to be replaced. Of course, you also should choose these rock drilling tools which are expertly crafted using the latest technology to withstand wear and tear while delivering optimal performance throughout the drilling process.

Precautions to be taken before replacing the button bit

Before replacing the button bit, it is essential to take some precautions to ensure safety and avoid damage to the drilling equipment. Here are some precautions to be taken:

• Wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and a hard hat.

• Shut off the engine of the drilling equipment to prevent accidental movement.

• Let the drilling equipment cool down before starting the replacement process to avoid burns.

• Use appropriate lifting equipment to lift the drill bit from the hole and lower it back after replacement.

• Inspect the drill string, shank adapter, and couplings for any damage before attaching the new button bit.

• Check the compatibility of the new button bit with the drilling equipment to avoid any operational issues.

Step-by-step replacement method for threaded button bit

The replacement method for a threaded button bit of a top hammer rock drill is as follows:

• Shut off the engine of the drilling equipment and let it cool down.

• Use appropriate lifting equipment to lift the old button bit from the hole.

• Inspect the drill string, shank adapter, and couplings for any damage.

• Remove any debris or dirt from the threads of the drill string and shank adapter.

• Apply a thin layer of anti-seize lubricant on the threads of the drill string and shank adapter to prevent them from seizing.

• Align the threads of the new button bit with those of the shank adapter and drill string.

• Tighten the button bit using a torque wrench to the recommended torque value.

• Lower the drill bit back into the hole using appropriate lifting equipment.

• Start the engine of the drilling equipment and check the drilling performance of the new button bit.

Maintenance tips to extend the life of the button bit

In addition to choosing a reliable drilling tools factory, regular maintenance of the button bit can help extend its life and improve its drilling performance. Here are some maintenance tips:

• Clean the button bit after each drilling operation to remove any debris or dirt.

• Inspect the button bit for any signs of wear or damage.

• Sharpen the button bit using a grinding machine when it becomes dull or blunt.

• Replace the button bit when it has reached its wear limit.

• Store the button bit in a dry and clean place to avoid rust or corrosion.

In conclusion, replacing a threaded button bit of a top hammer rock drill requires proper precautions and a step-by-step process to ensure safety and avoid damage to the drilling equipment.