Knowledge

Oct 30, 2019

How to Reduce Damage to Pile Driver Vibration Devices

A pile driver equipped with a vibration motor uses its high-frequency vibrations to apply high acceleration to the pile body. This transmits the vertical vibrations generated by the machine to the pile body, causing the soil structure around the pile to change due to the vibrations, which decreases its strength. The soil around the pile becomes more fluid, reducing the frictional resistance between the pile sides and the soil. Then, with the downward pressure from the excavator, the vibrating pile driver and pile driving hammer, and the weight of the pile itself, the pile is driven into the ground.


The action of vibratory power can assist in pile driving, but the surrounding environment during construction can also affect the vibrating mechanism of the excavator-driven pile driver to varying degrees. Therefore, ensuring basic vibratory pile driving effectiveness while minimizing equipment damage is a key consideration for construction economy.


From the installation stage, since the 020-0 motor has heavy eccentric blocks at both ends, if it is installed vertically or at an angle (i.e., with the shaft vertical or inclined to the horizontal plane), the bearings must bear the gravity of the eccentric blocks axially. Without special devices (i.e., plane bearings), this can negatively impact the bearings of the pile driver vibration motor, shortening its service life. Preventive measures include using vertical pile driver vibration-type motors and avoiding vertical or inclined installations as much as possible.


Ambient temperature is another factor that cannot be overlooked in equipment operation. The temperature of the materials transported by the equipment should not be too high. Since the pile driver vibration motor is rigidly connected to the equipment, forming an integral whole, high material temperatures can easily cause the temperature of the ground and the motor casing to rise, leading to cooling difficulties and potentially burning out the motor. To avoid this, ensure the pile driver vibration motor is kept away from high-temperature materials whenever possible without affecting equipment operation.


Pile drivers are often installed in harsh working environments with high dust levels. To ensure the safe use of the pile driver vibration motor, regular maintenance must not be neglected.

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