Screw conveyor is usually composed of screw conveyor body, inlet and outlet device and driving device. The screw machine body is composed of head section, middle section and tail section.

Generally, the intermediate sections of the screw conveyor are arranged according to the length during the factory assembly. The longest intermediate section is close to the head section, and the intermediate sections of the same length are next to each other. If there are special requirements, the arrangement order shall be given when ordering. A thrust bearing is installed in the head section of the screw conveyor to bear the axial force, and a bearing is installed in the middle section and tail section to support the screw shaft. In addition, an axially movable radial bearing is also installed in the tail section of the screw conveyor to compensate for the length error of the screw shaft and adapt to the change of temperature.

There are two forms of spiral surface of screw conveyor: solid screw (S-system method) and belt screw (d-system method). Flange connection is adopted between the screw shafts to ensure the interchangeability of the connecting shafts and facilitate maintenance. The cover of screw conveyor is tile type and clamped on the casing with cover buckle. If the sealing performance needs to be improved, users can add waterproof coarse canvas between the cover and the casing by themselves.

The feeding and discharging devices of the screw conveyor have four types: feeding port, square discharging port, manual pushing discharging port and rack discharging port, which are welded on the machine body by the user at the use site. When arranging the inlet and outlet positions of the screw conveyor, pay attention to ensure the distance from the outlet to the end, and avoid the collision between the outlet and the lifting bearing oil cup, casing connecting flange, base, etc.