What is the working principle of hydraulic compactor? The result?

The working principle of the hydraulic compactorIt is a process of lifting the hammer head to a certain height and releasing it through hydraulic power, and applying external force to improve the compaction degree of the pressed material, which is a new type of high-efficiency hydraulic tamping machinery developed by using the impact principle.

According to the working principle, that is, the operation mode, the high-speed hydraulic compactor can be divided into two designs: free drop hammer (single acting) hydraulic rammer and forced drop hammer (double acting) hydraulic rammer. The free-falling hammer hydraulic compactor is a hydraulic cylinder that lifts the hammer head to a set height and releases free fall, so as to achieve the purpose of tamping the foundation.

The forced hammer design is that when the hydraulic cylinder lifts the hammer head to a set height to release the free fall, the rapid reverse afterburner gives the hammer head a downward booster, so that the hammer head can accelerate the fall, and then obtain a greater tamping force, so its tamping effect is better than that of the free drop hammer design.

The hydraulic tamping machine has a good effectThe tamping force is up to several hundred tons, and the effective impact depth is 4 meters, and the impact depth can reach 10 meters.

Hydraulic tamping machine is suitable for construction sites, subgrade shoulders, moon bridge abutment back, road maintenance, asphalt pavement repair and ditches and other terrain tamping and leveling, especially can make up for the corner areas that can not be reached by strong compaction machine and impact roller, a variety of operation methods can complete plane tamping, step tamping, trench pit tamping and other complex foundation tamping treatment, its advantages are fast, convenient, adaptable and good tamping effect.

Excavator vibrating tamping machine is also called "vibrating plate compaction", "vibrating tamping machine", etc., installed in the original bucket position at the front end of the excavator stick, using the hydraulic power drive and movement function of the excavator, the eccentric mechanism rotates under the drive of the hydraulic motor, and the vibration generated by the rotation acts on the rammed material through the ramming plate to make it compact.

The excavator vibratory tamping machine is mainly suitable for tamping materials with less cohesion and friction between particles, such as river sand, gravel and asphalt, etc., and can be used to tamp planes, inclined planes, steps, trenches, pits, corners, abutment backs, etc., which are widely used in the tamping industry and are often used in conjunction with vibrating rollers.

The working principle of the hydraulic compactor.

According to the different falling methods of the hammer body, the operation mode of the high-speed hydraulic compactor can be divided into free falling hammer type and forced falling hammer type, and its basic operation schematic diagram. Free falling hammer type (single acting): the hydraulic cylinder lifts the hammer body to a set height and releases it, and the hammer body falls freely; After the hammer body falls, the assembly of the hammer body and the ramming plate is struck by the hammer pad, and the ramming plate is driven to compact the ground.

Forced drop hammer type (double acting): the hydraulic cylinder lifts the hammer body to a set height and quickly reverses the afterburner, and the hammer body accelerates and falls under the joint action of gravity and hydraulic cylinder thrust; After the hammer body falls, the assembly of the hammer body and the ramming plate is hit by the hammer pad, and the ramming plate is driven to compact the ground, and the high-speed hydraulic tamping machine adopts two accumulators (currently most manufacturers are one) to greatly improve the tamping frequency, and the tamping frequency under the maximum stroke is not less than 40 times.

The hammer body is rammed with the assembly of the hammer pad and the lower hammer body and the tamping plate, and does not ram the ground. The ramming plate of the high-speed hydraulic tamping machine is always pressed on the ground, and the downward pressure is applied to the ground, without the movement characteristics of smashing, more like a masseuse in the massage of a sudden force and heavy pressure. It can be seen that according to the structural characteristics of mechanical products, high-speed hydraulic tamping machine can be classified as tamping machinery; According to its action on the ground, the high-speed hydraulic compactor is a power compaction machine.

The high-speed hydraulic rammer lifts the built-in tamper to a certain height through the hydraulic power output of the excavator or loader, and the rammer accelerates and falls under the assistance of its own gravity and hydraulic accumulator, and realizes high-speed reciprocating motion under the action of the hydraulic cylinder, continuously hitting and tamping the ground.

Hydraulic ramming machine is a kind of professional tamping compaction equipment that has been used more in engineering construction in recent years, which is composed of a bearing mechanism, a rammer, a rammer, a lower hammer, a buffer device, a hydraulic system, an electronic control system, etc., and is directly installed on the loader, excavator and other construction machinery, and directly borrows the hydraulic power output of excavators, loaders and other machinery, without being equipped with other power sources.

The effect of the hydraulic compactor is reflected in the fact that it can eliminate or weaken the inherent defects and man-made defects of the layered rolling subgrade, and eliminate the post-construction settlement that may occur during the service life of the foundation in advance.