As a core traction component, the proper operation of a bucket elevator chain relies upon a series of supporting devices. According to authoritative public sources-specifically regarding the chains used in the NE series plate-link bucket elevators (currently a mainstream model)-the associated supporting facilities primarily fall into the following categories:
Sprockets (Drive Sprockets and Tension Sprockets)
These components engage with the chain to transmit power. Typically, they are manufactured from ZG310-570 cast steel, subjected to quenching and tempering treatment (HB 229–269), and feature induction-hardened tooth surfaces (HRC 40–48) to enhance wear resistance.
Buckets
Attached to the chain links, these serve to carry the material. Material options include carbon steel, 304 stainless steel, or 316L stainless steel, and they are secured in place using nuts.
Guide Rails (Dual-Row)
Installed within the upper assembly and select intermediate sections, these rails serve to restrict chain oscillation and ensure smooth operation.
Backstop
Prevents the hopper from rotating backward due to gravity when the equipment shuts down, thereby avoiding material backflow or blockages in the lower casing.
Anti-Backflow Rubber Plate
Installed at the discharge outlet to minimize material spillage during the gravity-assisted discharge process.
Inspection Door
Fitted to select intermediate sections to facilitate routine maintenance and troubleshooting.
Drive System Components
Comprising the motor, hard-toothed gear reducer, coupling, and other elements; these components constitute the drive unit, providing the necessary power and matching the required chain speed (typically 0.5 m/s).
