Self-supply cooling water belt driving core drilling machine

The utility model discloses a self-supply cooling water belt driving core drilling machine comprising a vertical column, wherein a gear rack is fixed on the vertical column, a lifting body sleeves the vertical column, a gear matched with the gear rack is arranged in the lifting body, a hand wheel is in driving connection with the outside of the gear, the upper end of the lifting body is provided with a motor, the motor is in transmission connection with a main shaft, the lower end of the main shaft is provided with a cutter and a large belt pulley, and a water pump is fixedly arranged on the outer side of the lifting body. The self-supply cooling water belt driving core drilling machine disclosed by the utility model has the beneficial effects that a power supply of the water pump does not need to be found additionally to match the operation of a machine body, and the water pump and the machine body can be synchronously operated after the machine is improved, so that the cutter of the machine body can be cooled in time and also is easy and convenient to move or transfer, and the working efficiency can be improved.