The Pusher Leg Attachment is a mechanical tool that is mounted to a rock drill or its platform. It is designed to apply forward pressure, which helps in advancing the drill bit or steel into the rock during drilling operations. This attachment provides additional thrust force needed to increase drilling efficiency and improve the overall performance of the drilling process.
Typically, the pusher leg assembly is made up of hydraulic pistons, which generate the force required to push the drill steel into the rock. The attachment may also feature other components such as adjustable arms, locking mechanisms, and pivoting joints to accommodate various rock drill configurations and drilling angles.
The Atlas Copco BBC Series Rock Drills are known for their high productivity, and the pusher leg attachment is critical in ensuring these machines are capable of operating at their full potential in tough rock conditions.
- Design: The Pusher Leg Attachment is designed for durability, strength, and versatility to ensure smooth operation even under the most demanding drilling conditions. Key design elements include:
- Hydraulic Pistons: The pusher leg operates via hydraulic pistons that extend and retract to generate the force required to push the rock drill forward. The hydraulic system ensures a smooth application of force and is adjustable for different drilling conditions.
- Mounting Mechanism: The attachment is designed to be securely mounted to the Atlas Copco BBC Series Rock Drill or its carrier platform. The mounting mechanism typically includes strong brackets and adjustable arms to accommodate different configurations of the drill.
- Adjustable Legs: The pusher leg usually has adjustable legs that can be extended or retracted depending on the required drilling depth and angle. This ensures that the rock drill remains properly aligned with the rock surface throughout the drilling process.
- Locking Mechanism: The attachment may include a locking or clamping mechanism to secure the pusher leg in place during use, preventing unwanted movement and ensuring consistent pressure on the rock drill.
- Durability: The pusher leg is built to handle high levels of stress, pressure, and heavy loads. It is designed to withstand wear and tear due to constant contact with the drill and the rock being drilled.
- Pivoting Joints: To allow flexibility and adjustability, the pusher leg attachment may include pivoting or rotating joints, enabling it to accommodate different angles of drilling.
- Reinforced Construction: The entire attachment is made with reinforced materials, often including hardened steel or other robust alloys, to handle the extreme conditions of the rock drilling environment.
- Applications: The Pusher Leg Attachment for Atlas Copco BBC Series Rock Drills is used in various applications where efficient and powerful rock drilling is required, including:
- Mining: In both underground and surface mining operations, the pusher leg attachment helps in drilling blast holes, exploratory holes, or other types of rock holes necessary for mining activities.
- Tunneling: In tunnel construction, especially when drilling through hard rock, the pusher leg ensures that the drill bit maintains constant pressure while pushing through the rock, improving efficiency and reducing operational costs.
- Construction: In large infrastructure projects like dams, highways, and bridges, pusher legs are used to assist in drilling through hard or reinforced rock layers to create foundations or other necessary drilling holes.
- Geotechnical and Geological Drilling: The attachment can be used for core sampling or testing, where it is essential to achieve accurate drilling depths and pressure to extract samples.
- Blasting Operations: For controlled rock blasting operations, the pusher leg attachment ensures that drill steel is securely pushed into position, allowing for the accurate placement of explosives.
- Well Drilling: The pusher leg is also utilized in certain types of well drilling operations, especially where hard rock formations need to be penetrated with high-pressure drilling systems.
- Compatibility:
- ALF71: BBC16W, BBC34W
- ALF71-1: BBC16W, BBC 34W
- ALF72D: BBD 94W
- ALF72D-1: BBD 94W
- BMK-625: RH 656W
- BMT51: BBC16W Rock Drill