Automatic poking device for on-site ammonium nitrate fuel oil explosive mixed loading truck and working method of automatic poking device

The invention discloses an automatic poking device for an on-site ammonium nitrate fuel oil explosive mixed loading truck. The automatic poking device comprises a first sensor for detecting whether materials are conveyed in a spiral conveying assembly, a second sensor for detecting whether materials exist in a stock bin, and hydraulic rod poking assemblies; the first sensor is installed in the spiral conveying assembly of the on-site ammonium nitrate fuel oil explosive mixed loading truck; the second sensor is installed at the upper end of the interior of the stock bin; and the multiple groups of hydraulic rod material poking assemblies are installed on the two sides of the stock bin. According to the automatic poking device, materials in the stock bin are monitored; the situation that due to material caking, discharging is difficult, and the material conveying efficiency is reduced is avoided; meanwhile, automatic material poking is achieved through the hydraulic rod material poking assemblies; the influence