Coal briquette smashing mechanism for coal quality detection analysis of coal used in power plant and coal sample preparation device

The invention discloses a coal briquette smashing mechanism for a coal quality detection analysis of coal used in a power plant and a coal sample preparation device, relating to the technical field ofcoal quality detection. The coal sample preparation device comprises a rack, a coal briquette smashing mechanism, a broken coal transferring mechanism, a coal powder preparation mechanism, a coal powder weighing mechanism and a coal cake preparation mechanism, wherein the coal briquette smashing mechanism is arranged at the top of the rack to realize smash of coal briquette, the broken coal transferring mechanism is arranged below the coal briquette smashing mechanism to realize transfer of broken coal, the coal powder preparation mechanism is arranged on one side of the broken coal transferring mechanism to grind the broken coal into coal powder, the coal powder weighing mechanism is arranged on the coal powder preparation mechanism to weigh a part of coal powder as required and transferthe coal powder to the co