QZ electric grab bridge crane is mainly composed of box bridge,grab trolley,crane operating mechanism,cab and electrical control system.The pick-up device is a grab that can grab bulk materials.
The grab trolley is equipped with an opening and closing mechanism and a lifting mechanism.The grab is hung on the opening and closing mechanism and the lifting mechanism with four steel ropes.The opening and closing mechanism drives the grab bucket to close and grab materials.When the bucket mouth is closed,start the lifting mechanism immediately to make the four steel ropes load evenly for lifting.When unloading,only the opening and closing mechanism is activated,and the bucket mouth opens immediately to tilt the material.
Except for the different lifting mechanism,the other structural parts of the crane are basically the same as the hook bridge crane.
