Invention Grant
- Patent Title: Extruder gearing
- Patent Title (中): 挤出机齿轮
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Application No.: US12991886Application Date: 2009-05-02
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Publication No.: US08381618B2Publication Date: 2013-02-26
- Inventor: Josef A. Blach
- Applicant: Josef A. Blach
- Agency: Godfrey & Kahn, S.C.
- Agent Nicholas A. Kees
- Priority: DE102008022421 20080507
- International Application: PCT/EP2009/003160 WO 20090502
- International Announcement: WO2009/135625 WO 20091112
- Main IPC: F16H47/00
- IPC: F16H47/00

Abstract:
For driving an extruder (1) having disposed along a circle a plurality of shafts (3) with processing elements (4), the shafts (3) are connected to the output shafts (11) of a gearing (7) which are provided with output pinions (12, 13). The output pinions (12, 13) are disposed axially offset so that adjacent output shafts (11) have a different length (L1, L2) between the end facing the extruder (1) and the output pinion (12, 13). The axially offset output pinions (12, 13) are in engagement each with a sun gear (18, 19). One sun gear (19) is connected to a hollow torque shaft (21) and the other sun gear (18) to an inner torque shaft (22) disposed therewithin. The hollow torque shaft (21) and the inner torque shaft (22) are configured such that the difference in torsional rotation angle caused by the different length (L1, L2) of the output shafts (11) is compensated by a different torsion of the hollow torque shaft (21) and the inner torque shaft (22).
Public/Granted literature
- US20110177901A1 EXTRUDER GEARING Public/Granted day:2011-07-21
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