What Are The Common Methods To Solve The Problems Of Air Leg Rock Drill？
The air leg rock drill has simple structure, small volume and light weight, and is suitable for small workplaces.
1、 How to calculate the ratio of air leg rock drill and air compressor?
Take the 20 m3 air compressor commonly used by customers as an example: 20 m3 air compressor generates 20 m3 of air per minute, one
air leg rock drill consumes about 4 m3 of air per minute, and the air generated by air compressor per minute ÷ (the air consumption of one
air leg rock drill+10% of the gas circuit consumption) ≈ 4 hand-held rock drills.
2、 What is the reason why the drill rod of the air leg rock drill is stuck?
1. The drill clip or drill clip spring of the
air leg rock drill is invalid or damaged:
① The failed and damaged parts of the
air leg rock drill shall be replaced in time.
2. The boss of the joint between the front end of the
air leg rock drill head and the drill clip is seriously worn
① Replace the rock drill head with a new air leg, or repair the boss with severe wear. Generally, the method of welding is used to flatten the worn part, and then polish it with a grinding wheel.
② The cotter pin and self-locking nut on the drill clamp bolt of the
air leg rock drill are invalid, and the drill clamp spring is loose due to the vibration of the drill.
3、 The exhaust port of the air leg rock drill is iced, which affects the exhaust. What are the reasons for reducing the working efficiency of the hand-held drill?
1. There are sundries in the air supply pipe of the
air leg rock drill, causing partial blockage of the exhaust port.
2. Since there is a large amount of water in the air, a water separator should be installed in the air circuit of the
air leg rock drill, and the accumulated water should be discharged frequently.
4、 What are the causes of frequent damage to the water needle when drilling with the air leg rock drill?
The water needle of the air leg rock drill is often damaged due to the following reasons:
1. The hexagonal wear of the drill tail sleeve of the
air leg rock drill is too large, and the drill tail swings during drilling, which is easy to wear off the water needle;
2. The center hole of the drill tail of the
air leg rock drill is too small or skewed;
3. The water needle of the
air leg rock drill bends too much (more than 0.5mm).
Solution: check and replace unqualified or worn
air leg rock drill parts and drilling tools.
