Patent ID: 8186482

Claim:
An oil-spraying apparatus for spraying oil simultaneously to an oil seal mounting hole formed at a front cover that is mounted at a front surface of a cylinder block, and to a crankshaft having one end portion protruded toward the oil seal mounting hole, the oil-spraying apparatus comprising: a base frame provided with a guide rail on an upper surface thereof; a mounting plate movably mounted on the guide rail by a rail block; a moving unit mounted at one side of the base frame so as to reciprocate the mounting plate on the base frame; and an oil-spraying unit mounted on an upper portion of the mounting plate, receiving compressed air and oil, respectively, from an air compressor through an air hose and an oil distributor connected to an oil tank through an oil hose, and spraying the same to the oil seal mounting hole and the one end portion of the crankshaft, the oil spraying unit including: a mounting block mounted on the upper portion of the mounting plate, a drive motor mounted at a rear portion of the mounting block through a motor bracket, a shaft housing mounted to the mounting block at a front portion of the drive motor, and having a penetration hole formed therein along a length direction of the shaft housing and an inflow hole formed at an upper portion of the shaft housing, a connector connected to the air hose and the oil hose, and configured to receive the compressed air and the oil supplied from the air hose and the oil hose into the inflow hole, a shaft rotatably inserted in the penetration hole of the shaft housing, and having a rear end connected to a rotation shaft of the drive motor, an oil-spreading block mounted at a front portion of the shaft to receive the compressed air and the oil flowing into the inflow hole through the shaft, and spray the oil mixed with the compressed air and configured to be received between the oil seal mounting hole and the crankshaft, wherein a plurality of spaying holes are formed around the exterior circumference of the oil spreading block, a body of a cylindrical shape having a first hydraulic line formed therein; a connecting portion integrally protruded from a rear surface of the body, mounted at a front end of the shaft, and having an oil pathway formed therein, the oil pathway being connected to the first hydraulic line; and a spreading portion integrally protruded from a front surface of the body along an exterior circumference thereof, and provided with an inserting recess formed at a middle portion of the front surface of the body and spraying holes formed by piercing the spreading portion from an exterior circumference to an interior circumference thereof, the spraying holes facing each other and being connected to the first hydraulic line.