Measuring and testing – Dynamometers – Responsive to torque
Reexamination Certificate
2006-03-07
2006-03-07
Noori, Max (Department: 2855)
Measuring and testing
Dynamometers
Responsive to torque
C264S040100, C425S311000
Reexamination Certificate
active
07007559
ABSTRACT:
A method of setting pre-stressing, by which blades (11) of a granulating head carried by a shaft (12) which is driven by a motor (21) and which is displaceable in the axial direction of a granulating device abut against the perforated plate (8), makes use of the torque of the motor (21) for the said setting. To this end, the shaft (12) is adjusted at a constant speed in both axial directions in succession, the pattern of the torque M of the motor (21) being recorded over the displacement path x of the shaft (12) for both directions. The differentialdM/dxis formed from this and the position x0of the shaft is then determined fordM/dx=0. Starting from the said position x0a position x=x0+xzof the shaft (12) is set, in which xzrepresents the desired advance of the shaft (12) in the direction towards the perforated plate (8). The device for carrying out this method provides for a sensing device (66) for the time pattern of the torque M of the motor (21). The output signal of the said sensing device (66) influences an actuating drive (75) for the displacement of the shaft (12). In addition, a device (69) for forming the differentialdM/dxis provided, as well as a device (70) for determining the position x0of the shaft (12) fordM/dx=0. The said two devices are connected to the actuating drive (75).
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Klammer Günther
Reitinger Norbert
Ellington Alandra
EREMA Engineering Recycling Gesellschaft m.b.H.
Noori Max
Townsend and Townsend / and Crew LLP
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