Raw coal test piece coring device and method

The invention discloses a raw coal test piece coring device and method, and relates to coal scientific research equipment, and the raw coal test piece coring device comprises a flexible wrapping clamping mechanism and a coring mechanism; the flexible clamping mechanism comprises a clamping table and a plurality of flexible clamping assemblies. A clamping cavity used for containing raw coal blocks and a coring hole enabling the clamping cavity to be communicated with the outside are formed among the multiple flexible clamping assemblies. Each flexible wrapping assembly comprises a supporting shell and an oil bag arranged on the side, facing the clamping cavity, of the supporting shell. A raw coal block is placed in the clamping cavity, and hydraulic oil is introduced into the oil bag, so that the oil bag expands and wraps the raw coal block, and flexible clamping of the raw coal block is achieved; and the coring mechanism can pass through the coring hole and extend into the clamping cavity to carry out raw coa