How does a pneumatic rock drill work?

The working principle of the pneumatic rock drill: when the pneumatic rock drill is working, the air pressure changes alternately into the rear cavity and the front cavity of the cylinder, pushing the piston to move back and forth. Similarly, compressed air also acts on the back or front cover of the cylinder, causing the rock drill to retreat or move forward, so that the rock drill vibrates and thus generates chisel force.

It is recommended to use Tianshui Jufeng's YT28 rock drill, which saves time and effort.

This rock drill has the following advantages:

1. YT28G rock drill is the leading rock drilling tool in China. It is lightweight, fast chiseling, low failure rate, high reliability, and is well received by users.

2. However, the majority of users often suffer from the problem of over-excavation on the right side when digging caves is greater than that on the left side. The reason is that the structure of the shank at the rear of the rock drill (the right side of the shank is wider than the left side, and the left edge is 110mm from the center line of the rock drill, while the right side is 185mm), resulting in the angle of the right side being greater than the left side when punching the edge hole. In order to help users solve this problem, our factory has improved the structure of the right side of the rock drill handle for many times, and carried out sufficient field tests (the size of the right edge from the center line of the rock drill has been reduced from 185mm to 135mm, close to 110mm on the left).

Basically solve the problem that the right side is larger than the left side when digging the cave, which not only reduces the amount of slag, but also saves the amount of cement when building the ballast, and will reduce the cost of the project at the same time.

3. This improved YT28G rock drill does not affect the generality of parts, but also improves the service life of the air pipe elbow and oil injector, which is well received by the users.

If you want to know more about the rock drill, it is recommended to consult Tianshui Jufeng. Tianshui Jufeng is affordable, the inventory is abundant, the delivery speed is fast, and it is a powerful manufacturer. Tianshui Jufeng purpose:

Enhance brand culture, show my business style, improve business management, extend brand connotation, improve the marketing system, ensure sustainable development, and serve every customer with superior quality and reasonableness. Thanks and welcome all new and old customers to Tianshui Jufeng to discuss cooperation, and wish Tianshui Jufeng and you to create brilliance. [Click to learn more about the model rock drill**, the strength of the manufacturer fast delivery.

The pneumatic type uses compressed air to drive the piston to impact forward in the cylinder, so that the steel drill chisels the rock, and is the most widely used. The pneumatic rock drill is mainly composed of cylinders - piston components, gas distribution devices, steel brazing slewing mechanisms, control valves and flushing-blowing mechanisms. If it is conducive to pneumatic outriggers, it is called an air leg rock drill.

Rock drills work according to the principle of impact crushing. When working, the piston makes a high-frequency reciprocating motion and constantly hits the chisel head. Under the force of impact, the pointed wedge-shaped drill bit crushes the rock and chiseles it to a certain depth, creating a dent.

After the piston is retracted, the drill is turned at an angle, the piston moves forward, and when it hits the chisel head again, a new dent is formed. The fan-shaped rock block between the two dents is sheared by the horizontal component generated by the drill bit. The piston continuously hits the drill head and continuously feeds compressed air or pressurized water from the central hole of the drill to discharge the slag out of the hole, forming a circular borehole of a certain depth.

The same is generally hydraulic.

The efficiency of the wind is low, and it is cheap.

Hydraulic high efficiency, cost-effective, difficult to maintain, pneumatic opposite.

A rock drill is a tool used to mine stone directly. It drills holes in the rock to blast the rock with explosives to blast the rock and complete the stone mining or other stone work. In addition, the rock drill can be converted into a saboteur to break up hard layers such as concrete.

Rock drill is a stone mining machine that uses the impact and rotation of steel drill to drill holes in the rock, mainly used to mine stone or demolish abandoned buildings. There are four types of rock drills: pneumatic type, electric type, internal combustion type and hydraulic type. Shandong Zhongyan Mining Company** has a classification on it, which can be referred to.

The pneumatic type uses compressed air to drive the piston to impact forward in the cylinder, so that the steel drill chisels the rock, and is the most widely used. The electric type is driven by the electric motor through the crank connecting rod mechanism to drive the hammer head to impact the steel drill and chisel the rock. The internal combustion type uses the principle of the internal combustion engine, and drives the piston to impact the steel brazing and chisel the rock through the explosive force of the diesel fuel.

It is suitable for construction sites without power supply and air source. The hydraulic type relies on hydraulic pressure to impact the steel brazing through inert gas and impact bodies to chisel the rock. In addition to being used for stone mining, rock drills are widely used in tunnel construction and mining.

Pneumatic rock drill is a tool that uses compressed air or nitrogen as a power source, which is mainly used to crush, cut, and chisel hard materials such as rock, concrete, bricks, etc. in mining, construction, demolition, and other industries.

The working principle of the pneumatic rock drill is to transport compressed air or nitrogen to the cylinder inside the pneumatic rock drill through the pipe infiltration channel, and the piston in the cylinder will move forward by the action of air pressure, so as to drive the chisel head to impact and impact hard materials such as rock agitation or concrete, so as to achieve the effect of crushing and rock drilling.

During the working process of the pneumatic rock drill, the gas in the cylinder needs to enter and exit without knowing the sound to ensure that the chisel head can continue to strike. In order to achieve this, pneumatic rock drills are usually equipped with a special air path control system to control the air source and the direction of the air flow, thus ensuring that the gas in the cylinder can enter and exit at the right time and speed to achieve the best working results.

It should be noted that the pneumatic rock drill will produce a lot of noise and vibration during use, and it will also cause certain risks to the safety of operators, so it is necessary to carry out relevant safety training before use, and take corresponding safety measures, such as wearing protective equipment, avoiding long-term continuous use, etc.

The pneumatic type uses compressed air or drives the piston to impact forward in the cylinder, so that the steel chisel hits the rock, and is the most widely used. Mining rock drill is a gas leg instead of manpower against the rock drill work, thereby greatly reducing the labor intensity of workers, pneumatic rock drill mainly has cylinders - piston components, gas distribution devices, steel brazing slewing mechanism, control valve and flushing hail tremor - blowing mechanism, etc. The active wood loses to the pneumatic outriggers, which is called the air leg rock drill.

Hello, I am glad to answer for you the working principle of the [Dahongyuan Tanhua] rock drill is to work according to the principle of impact crushing. When working, the piston does high-frequency reciprocating motion, and constantly impacts the chisel tail with hail buckets. Under the force of the impact, the pointed wedge-shaped drill bit crushes the rock and chiseles it to a certain depth, creating a dent.

After the piston is retracted, the drill rod is turned at an angle, the piston moves forward, and when it hits the drill head again, a new dent is formed. The fan-shaped rock block between the two dents is sheared by the horizontal component generated by the drill bit. The piston continuously hits the drill adapter and continuously feeds compressed air or pressurized water from the central hole of the drill rod to remove the slag from the hole to form a circular borehole of a certain depth.

Kiss Extended Content <>

D Gripping rock drill This kind of rock drill is lightweight, generally less than 25kg, and the vertical belt is operated by hand when working. A variety of small diameter and shallow blast holes can be punched. Generally, only downward holes and near-horizontal holes are punched.

Because it is operated by manpower, the labor intensity is high, the impact energy and torque are small, and the rock drilling speed is slow, so it is rarely used in underground mines now. Rock drills of this category include Y3, Y26 and so on.

Stage 1: The hydraulic oil from the high-pressure oil source enters the lower end of the column front plug and pushes the plunger upward.

Stage 2: In the process of the plunger rising, the valve sleeve is pushed upward, and YMJT03 is reached to the fixed position, so the high-pressure oil is supplied to the cavity through a calibrated oil inlet between the valve sleeve and the plunger, and the nitrogen energy reservoir diaphragm is also compressed upwards for nitrogen energy storage.

Stage 3: When the liquid pressure on the upper side of the plunger exceeds the liquid pressure at the lower end, the imbalance of the force accelerates the downward movement of the plunger while the reservoir provides the amount of oil required for rapid movement. During the downward movement, the plunger opens the throttle orifice and lowers the valve sleeve as well.

The plunger continues to move downward until it collides with the crushing tool and strikes.

Stage 4: During the downward movement of the valve sleeve, the oil supply to the cavity is cut off, and it is connected with the low-pressure oil return circuit, so that the whole process returns to the initial position. In this way, continuous strikes can be carried out automatically.

Do you understand the four stages of how a hydraulic rock drill works? If you are interested in hydraulic rock drills, you might as well check the official website of Shandong China Coal.