The main structure and components of various types of scraper conveyor are basically the same, it consists of three parts: the head, the middle part and the tail part.
The scraper conveyor consists of a transmission system, a head frame, a head wheel assembly, a scraper chain, an intermediate groove, a discharge gate, a tail frame, a tail wheel assembly, a tensioning device, etc.
The transmission system consists of a motor, a reducer and a coupling, which is the power part of the scraper conveyor. Due to the low speed of the scraper conveyor, the reducer usually adopts the NGW type planetary gear reducer. The arrangement of the transmission system has two basic forms, which can also be adjusted according to the site location. In order to facilitate installation, a chassis for installing the motor and reducer is designed under the transmission device.
The main function of the nose frame is to support the head wheel assembly.
The head wheel assembly consists of drive shaft, sprocket, bearing and sealing and lubrication system.
The working principle of the scraper conveyor is to use the open chute as a bearing for coal, vermiculite or material, and fix the scraper on the chain (constituting the scraper chain) as a traction member. When the head drive is activated, the sprocket on the driven head shaft rotates, causing the scraper chain to circulate and move the animal material along the chute until the machine head is unloaded. The scraper chain bypasses the sprocket for a stepless closed cycle operation to complete the material transport.