研究了一种火车煤炭采样点快速选取系统,该系统利用激光成像系统的灯光投射到火车车厢煤堆上形成大小可调的抽样网格成像,并可根据火车车厢位置通过旋转执行单元和轴向传动单元控制抽样网格承载在车厢煤堆上的位置,实现车厢采样点位置快速精准定位的效果。系统应用于商品煤样人工采取过程中,使用寿命长,无需频繁维护,适用灵活便于推广,同时为煤质管控及煤炭贸易结算提供了可靠的技术基础,在煤质检验领域具有科学广泛的指导意义。 A rapid selection system for train coal sampling points is studied. The system uses the laser imaging system to project light onto the train piles to form adjustable-size sampling grids. According to the position of the train carriage, the rotating execution unit and the axial The transmission unit controls the position of the sample grid on the pile of coal bed and realizes the effect of rapid and precise positioning of the cabin sampling point. The system is applied to the manual sampling of commercial coal samples, has long service life, no frequent maintenance, flexible application and convenient promotion. Meanwhile, it provides a reliable technical basis for coal quality control and settlement of coal trade and has extensive scientific guidance in the field of coal quality inspection significance.