Detailed explanation of the working mode of internal combustion rock drill jack hammer
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As an important tool for mining rock materials, internal combustion rock drills jack hammer are popular in the market due to their flexible and convenient portability and low price. The internal combustion rock drill jack hammer has multiple functions such as drilling, splitting, crushing, tamping, and shoveling. It adopts an advanced non-contact ignition system and a double-handle body structure. The piston is driven to impact the steel drill through the explosive force of gasoline. Rocks are especially suitable for high mountains, areas with no power supply, no air pressure equipment, and temporary projects with greater mobility. The internal combustion rock drill does not need to replace the internal parts of the head, just move the handle as required, and you can work. It can drill holes in the rock and can drill down to six meters vertically. It is convenient to operate, more time-saving, and labor-saving. Features such as fast chiseling speed and high efficiency. The internal combustion rock drill jack hammer uses an internal combustion engine as a power source and uses mixed gas fuel to generate thrust to achieve rock drilling operations. In terms of use, it is easy to start and easy to use. It has outstanding advantages in mountain environments with more complex terrain. In addition, internal combustion rock drills can also be used for splitting and digging in building walls, roads, geological prospecting, etc., and are very popular in the market.
Description of the starting method of the internal combustion rock drill jack hammer: When the engine of the internal combustion rock drill is pneumatic, the starting rope should be gently pulled after the ratchet mechanism is engaged. Pull the starting rope in the correct direction, and don't use too much force to prevent the starting rope from pulling out. When the rock drill is started with the drill pipe installed, the handle clutch of the internal combustion rock drill is not allowed to turn to the rotating position. Always pay attention to whether the fiber hole is blocked, and the machine turns off. In order to protect the slewing mechanism, the machine should not be overloaded. Because internal combustion rock drills use gasoline as fuel, the exhaust gas will pollute the air. Therefore, under normal circumstances, it is only allowed to work in the open air.
The working principle of internal combustion rock drill:
The internal combustion rock drill uses an internal combustion engine as the motive force, that is, the thrust generated by the combustion and expansion of the combustible mixture in the cylinder is used to push the piston intermediate steel drill for rock drilling. The internal combustion rock drill is composed of a two-stroke single-cylinder gasoline engine, an air compressor and a rock drilling device. In a longer cylinder, an engine piston and an impact piston are installed at the same time. The cylinder has a stepped shape, most of which are small inner diameter holes, and a small part are large inner diameter holes. A combustion chamber is formed between the two pistons of the large and small inner diameter holes. The large diameter of the impact piston divides the large inner diameter hole of the cylinder into upper and lower compression chambers, and the rod of the impact piston extends out of the cylinder. The two-stroke single-cylinder gasoline engine is an inverted type. The combustible gas mixture atomized by the carburetor first enters the crankcase, and then enters the cylinder through the air exchange hole after compression.
Drilling process of internal combustion rock drill:
When the piston moves down to cover the ventilation port and the exhaust port, the mixed gas entering the combustion chamber begins to be compressed. At this time, the impact piston will not move downward due to the resistance of the compressed air in the lower compression chamber. When the downward movement is close to the bottom dead center, the spark plug ignites, causing the mixed gas to burn and expand, pushing the impact piston downward. At the same time, the gas in the lower compression chamber increases in pressure due to the pressure, so the exhaust valve of the chamber is opened, and some of the gas is removed. It is discharged into the atmosphere to reduce the resistance of the impact piston to move down, increase the impact ability, and make it violently impact the steel drill for rock drilling.
Return process of internal combustion rock drill:
When the piston moves back up, the air pressure in the cylinder decreases as the volume of the combustion chamber increases. When the pressure in the combustion chamber is lower than the pressure in the lower compression chamber, the impact piston rises. During the upward movement of the piston, first open the exhaust port for exhaust, and then open the ventilation port, allowing the mixed gas under pressure in the crankcase to enter the combustion chamber of the cylinder from this port. The inertia of the fresh air will accelerate it. The exhaust gas is driven out, so that the fresh mixed gas quickly fills the cylinder. Start the crankshaft to rotate one circle, and the two kinds of cylinders in the cylinder will go back and forth for two strokes, and the steel drill will be impacted once to complete a work cycle. When it starts to rotate continuously, the above-mentioned working cycle is repeated continuously, and the internal combustion rock drill continuously impacts the steel drill to perform rock drilling work.
As the most widely used rock drilling equipment, internal combustion rock drills are now widely used in mining quarrying, construction, road construction, fire protection, geological exploration and other fields. They are easy to use and operate, save time and effort, and are well adapted to the environment. It can also play a good working performance in the weather environment, so it is favored by the market.
