Shandong Relied Heavy Industry Co., Ltd. specializes in producing water well drilling rigs, sampling drilling rigs, drilling rigs, Shandong drilling rigs, core drilling rigs, pneumatic water well drilling rigs, geological exploration drilling rigs, etc.

The core drilling rig is connected by a pin between the spreader ring and the spreader ring holder, the spreader ring holder is welded to the hook bar, the barrel is connected to the hook body with a left thread and a stop block is used to prevent the thread from loosening. The hook body and barrel can be moved up and down along the hook bar. The function of the inner and outer load springs is to enable the upright root to spring upwards when starting the drill after it has been loosened.

The core drilling rig barrel is filled with oil. The seat of the thrust bearing divides the oil chamber into two parts, and the seat has oil holes cut in it. Due to the damping effect of the oil flow, the shock vibration of the hook body during its down-drilling operation is absorbed, which prevents damage to the threads of the drill pipe joint.

The upper end of the core drilling rig barrel consists of 6 small springs and a positioning disc which, with the help of the friction between the positioning and the annular contact surface of the hoist seat, prevents the hoist from turning when lifting an empty hoist card to displace the hoist.