cutter wheel, cutting disc and as well as cutter assembly suitable for shredder pumps

摘要

The present invention relates to a cutter assembly configured for a shredder pump and comprising a cutter wheel (5) and a cutter disc (6) which interact with one another. the cutting wheel (5) comprises a shaft portion (27) which is configured to interact with a central bore (24) of said cutting disk (6), a hub portion (14) which is connected to the cutting portion. shaft (27) and at least two main cutting edges (13) that radially extend outwardly from said hub portion (14) and are configured to interact with a set of cutting holes ( 12) of said cutting disc (6), wherein the shaft portion (27) comprises an axially extending cutting recess (28), and wherein the hub portion (14) comprises only an extending cutting recess radially (29). the cutting disc (6) comprises a suction side, a central hole (24) which is configured to interact with the axle portion (27) of said cutting wheel (5), and a set of cutting holes (12). ) opening on said suction side radially outwardly from the central hole (24) and which is configured to interact with main cutting edges (13) of said cutting wheel (5), wherein the central hole (24) comprises two axially extending cutting recesses (34) and the suction side comprising a radially extending cutting recess (35) extending from the central bore (24), wherein the two axially extending cutting recesses ( 34) of the central bore (24) are arranged diametrically opposed to each other.