MULTI-STAGE HAMMER CRUSHER AND COMBINED HARVESTING MACHINE CONTAINING IT Russian patent published in 2021 - IPC A01F12/44 

FIELD: agriculture.

SUBSTANCE: invention is designed for the devitalization of weed seeds and fragmentation of organic substances. Multi-stage hammer crusher 10 has many crushing stages arranged concentrically relatively to each other. The set of crushing stages is arranged so that essentially all the material in the first innermost crushing stage passes through all subsequent adjacent crushing stages. The crushing stages include the first crushing stage and the second crushing stage. The central loading passage allows the flow of material to move into the primary impact zone of the first crushing stage. The first crushing stage has impact mechanism 16 and first lattice device 20a. Impact mechanism 16 rotates around the axis of rotation. First lattice device 20a is located in a circle around impact mechanism 16, is separated from it in the radial direction and is equipped with set of holes 22a. The second crushing stage has second lattice device 20b located in a circle around first lattice device 20a and separated from it in the radial direction, and circular ordered group of impact elements 50a installed between first lattice device 20a and second lattice device 20b with the possibility of rotation with impact mechanism 16.

EFFECT: invention allows increasing efficiency of seed destruction and energy efficiency, as well as the efficiency of processing fibrous materials.

36 cl, 26 dwg