Screw conveyor intermediate support

摘要

An intermediate support for a screw conveyor, which has a first shaft rotating about an axis of rotation and defined by a number of segments; and a casing. The intermediate support has a movable assembly, which is coaxial with and rotates about the axis of rotation, is integral with the first shaft, and has a second shaft for connecting two segments, and a bushing fitted onto the second shaft; and a fixed assembly, which is coaxial with the axis of rotation, and has a supporting body fitted to the bushing and connected rigidly to the casing, and a number of annular shields coaxial with the axis of rotation and interposed between the supporting body and the bushing.

主权项

1. An intermediate support (5) for a screw conveyor (1) comprising a first shaft (3) rotating about an axis of rotation (X), and a casing (2) coaxial with the axis of rotation (X); the intermediate support (5) comprising:
a movable assembly (MA), which is coaxial with and rotates about the axis of rotation (X), is integral with the first shaft (3), and comprises a second shaft (6), and a bushing (7) fitted to the second shaft (6); and a fixed assembly (FA), which is also coaxial with the axis of rotation (X), and comprises a supporting body (8) fitted to said bushing (7) and connected rigidly to the casing (2); wherein the fixed assembly (FA) also comprises a number of annular shields (33) coaxial with the axis of rotation (X) and interposed between the supporting body (8) and the bushing (7); wherein each shield (33) is housed inside a respective chamber (C) defined between the supporting body (8) and the bushing (7); and the bushing (7) comprises a number of annular teeth (15) coaxial with the axis of rotation (X) and each projecting inside a respective said chamber (C) from a cylindrical outer surface (16) of the bushing (7); each of said teeth (15) cooperating with a respective shield (33); wherein each shield (33) fits over a respective tooth (15); and each shield 33 comprises two ridges (34), each positioned facing and close to the respective tooth (15).