TRANSPORTATION DEVICE FOR BULK MATERIALS Russian patent published in 2013 - IPC B65G33/12 B65G33/24 

FIELD: packaging industry.

SUBSTANCE: transportation device comprises a driving housing (1), a loading (3) and unloading (4) tubes, pipeline (5) for supplying the working medium. The housing is assembled from sections (8) made of an even number of equilateral triangles (9) interconnected by two lateral sides (10, 11). The sections are interconnected by free third sides (12) of the triangles. Along the perimetre of the housing the broken helical lines are located, which are directed towards each other. The housing is provided with internal helical grooves directed towards each other with the same pitch. Along the length of the housing the cylindrical spring (7) is rigidly mounted with the ability to rotate with the housing, with the plane section of coils, which is equipped with a device for changing the pitch of coils by its stretching or compressing. The spring can be attached rigidly to the loading and unloading tubes, and remain stationary during rotation of the housing.

EFFECT: enhanced performance of the device.

8 dwg