Patent ID: 7980788
Filing Date: 2011-07-19
Classification: B06B,E02D,E02F,Y10T

Abstract:
1. A construction machine for generating vibrations, the construction machine comprising: a transmission having gears and a drive shaft, at least one unbalanced mass arranged on the transmission for generating vibrations, at least one hydraulic drive arranged on the drive shaft of the transmission for driving the gears, a hydraulic circuit including at least one supply line for supplying hydraulic fluid to the at least one hydraulic drive for operating the at least one hydraulic drive and at least one return-flow line for discharging hydraulic fluid from the at least one hydraulic drive, at least one lubrication line branching off from and in line-connection with the at least one return-flow line of the hydraulic circuit and being operatively connected to the transmission for supplying hydraulic fluid to the gears of the transmission for lubricating the gears, a dosing device positioned in the at least one lubrication line, the dosing device operative to change the supply of the hydraulic fluid through the at least one lubrication line between the hydraulic circuit and the transmission depending on the rotational speed of the gears of the transmission, and a leak oil line for discharging leak oil from the hydraulic drive.