Coal sampling device

The invention relates to a coal sampling device which comprises a spiral sampler, one side of the spiral sampler is connected with a driving chain, the driving chain is connected with a chain fixing block, the chain fixing block is connected with an adjusting bolt through a pressing plate, a rack seat plate is arranged under the adjusting bolt, the lower bottom face of the rack seat plate is connected with a rack, and the rack is meshed with a gear shaft, the gear shaft is connected with one end of a receiving box. A chain transmission system of the spiral sampler is used for driving, and an automatic material receiving function is realized by means of an operation process with a completely consistent sampling movement process, so that the material receiving function does not need any auxiliary movement, energy-saving and efficiency-increasing actions are realized, and the function is completely consistent with the sampling process requirement. 本发明涉及一种煤炭采样装置，包括螺旋采样器，螺旋采样器一侧与驱动链条连接，驱动链条连接链条固定块，链条固定块通过压板连接调整螺栓，