This equipment is mainly used for the unloading and loading of bulk cargoes. The bulk cargo is grabbed by a portal grab crane, and the grabbing materials are run to the loading and unloading by the relevant operation mechanism of the gate grab crane. Above the system, the grab is opened by the PLC control system of the portal crane and the bulk cargo is unloaded into the unloading funnel of the loading and unloading system; an electrohydraulic push rod control device is located on the discharge opening of the unloading funnel. It is used to control the flow of material, so that it is safe and effective when loading the vehicle, which greatly improves work efficiency.