Ram compactor, a compaction machine that compacts backfill soil layer by layer using impact and shock vibration. It is divided into fire compaction, frog compaction and rapid impact compaction.
Fire compaction It is made according to the principle of a two-stroke internal combustion engine. There are two upper and lower pistons in the cylinder. The upper piston is an internal combustion piston and the lower piston is a buffer piston. The lower part of the cylinder is equipped with a rammer with an inclined bottom surface, which makes the vertical axis of the cylinder deflect forward. The upper piston rod protrudes from the through hole in the middle of the cylinder head cover, the lower piston rod protrudes from the lower end surface of the cylinder and is integrated with the tamping hammer. The direction of the earthmoving machine. Fire tamping is under the action of the explosive force of the combustible mixture. Therefore, it jumps off the ground forward and upward, and under the action of its own weight, it falls to the ground to tamp the soil. The tamping hammer jumps and the fuselage moves forward step by step.
Electric frog rammer It is made by the principle of rotary inertial force and consists of a tamper, a tamper, an eccentric block, a pulley and a motor. The motor and the transmission part are installed on the skid base. The rear end of the rammer is hinged to the drive shaft. Under the action of the centrifugal force of the eccentric block, the rammer can swing up and down around this axis. The front end of the rammer is equipped with a rammer. When the rammer swings downward, it rams the soil, and when it swings upward, it moves the skid base forward. Therefore, each time the frog rammer strikes, the fuselage moves forward one step.
Fast impact tamping The ram is driven by the motor through the reducer and the crank-link mechanism to perform rapid impact motion to ram the soil. When the ram is off the ground, the operator can push the machine forward. In order to reduce the vibration of the body, the vertical axis of the cylinder is deflected forward. Set the buffer spring group. The tamping machine has a better effect of tamping cohesive soil, but its tamping hammer has a limited area and should not be used for tamping of large-area earthwork. For sand and gravel, another vibratory tamping machine should be used for tamping.