The invention provides a drilling rig for
geological exploration, and relates to the technical field of drilling, the drilling rig comprises a motor mounted on a lifting frame, the extending end of the motor is connected to an inner rod, an outer wheel is coaxially arranged outside the inner rod, a plurality of fixing rods are arranged at the upper end of the outer wheel at equal intervals, and the fixing rods are connected to the inner rod. The drilling device has the most prominent
advantage that the drilling device has a unique anti-jamming
protection mechanism, when a sampling
pipe is jammed by a hard stratum or foreign matters in the drilling process, the sampling
pipe can be prevented from being blocked by the anti-jamming
protection mechanism, and the sampling
pipe can be prevented from being blocked by the anti-jamming
protection mechanism, so that the sampling pipe can be prevented from being blocked by the anti-jamming protection mechanism.
Power transmission between the motor and the sampling pipe is not rigid connection any more, controlled separation is achieved through a designed combination of a
gear system and a friction disc, the motor continues to operate, but not all torque is directly transmitted to the clamped sampling pipe, part of energy is converted into surrounding motion through a rotating wheel
system, and therefore the sampling pipe can be separated. And the risk of
burnout of the motor due to overload is effectively avoided.