First, the working principle of hydraulic pile hammer
Hydraulic pile hammer driving equipment is composed of pile hammer, hydraulic cylinder, hydraulic pressure regulator and other parts. The hydraulic pile hammer has these two methods of landing.
1. Random drop method: The hydraulic source provides high pressure oil in the hydraulic cylinder cavity to raise the piston rod. When the hydraulic pile hammer is mentioned as requiring a relative height, the working pressure oil in the hydraulic cylinder cavity is quickly converted to the piston rod cavity (low voltage oil cavity), and the pile hammer quickly falls close to the efficiency of free fall movement under the effect of the force. The connection between the hydraulic pile hammer and the hydraulic cylinder is a kind of snap structure that can be separated quickly. The hydraulic source provides high pressure oil for the hydraulic cylinder cavity to promote the rise of the piston rod. After the hydraulic pile hammer is raised to the relative height of the control accuracy, the pile hammer is separated from the hydraulic cylinder immediately, and the efficiency of the pile hammer is reduced in free fall.
2. After the hydraulic pile hammer is raised to the relative height of the control accuracy, the upper and lower chambers of the hydraulic cylinder are communicated immediately to produce a differential protection connection. Because the total area of the upper chamber piston rod in reasonable work exceeds the total area of the lower chamber piston rod in reasonable work, the hydraulic driving force is caused to the downward, and the hydraulic pile hammer is promoted to speed up the landing.
Working principle of hydraulic hammer of pile driver
Second, the pile hammer operation precautions
Piling hammer beginners practical precautions:
1, carefully read the operation guide, hydraulic pile hammer manufacturers, to avoid wrong operation, damage the pile hammer and its excavator.
2, carefully and carefully the connection position of the pile hammer and its excavator, the hydraulic pile hammer manufacturer wholesale, whether there is oil leakage, the hydraulic pipeline is not all normal.
3, the pile hammer is used to carry out crushing work, it is not necessary to use the excavator crushing hammer as a pry bar.
4, in the process of application, the drill rod must be pressed on the working target, and a certain working pressure can be maintained to do a good job, and there is no need to work immediately.
5, in addition to the drill rod, it is not necessary to embed other parts of the pile hammer in the water.
6, when the operation of the pile hammer occurs strong vibration, must terminate the work and carry out inspection
Working principle of hydraulic hammer of pile driver
Three, hydraulic pile hammer characteristics
Hydraulic pile hammer has characteristics:
1. Low noise, no organic waste gas environmental pollution and other environmental protection advantages;
2. High level of automation technology, can adjust the pressure travel arrangement without pole, easy to use;
3. Integrated into a variety of pile construction, no soft land resource base operation difficulties and other characteristics, is a combination of diesel pile hammer and advantages of environmental protection pile foundation construction weapons and equipment;
4. Wide application coverage, widely used in engineering construction, highway Bridges, ports and Marine technology and other pile foundation construction infrastructure.
Working principle of hydraulic hammer of pile driver
The hydraulic pile hammer can play a variety of pile types, such as precast concrete pile, steel drum pile, square pile, round pile, etc., with high efficiency and no pollution, it can be applied to the pile foundation construction of ports, wharfs, airports, high-rise buildings, Bridges and other projects.
