Device for mounting a shaft to the rotor of an electric motor

Details Device for mounting a shaft to the rotor of an electric motor Device for mounting a shaft to the rotor of an electric motor

1999-08-06

2000-08-08

Hall, Carl E.

Metal working

Means to assemble or disassemble

Means to assemble electrical device

29596, 29447, H02K 1500

Patent

active

06098273&

ABSTRACT:
A device for mounting the shaft to the rotor of an electric motor, comprising the steps of: positioning a cylinder block (3) and a rotor (7) relative to each other with a predetermined axial spacing therebetween and with the axes of a bearing bore of the cylinder block (3) and of a central bore of rotor (7) being aligned to each other inside a hermetic chamber (10) having an atmosphere inert at pressures higher than the atmospheric pressure; introducing a shaft (5) which has been diametrically contracted by refrigeration in the hermetic clamber (10) through both the bearing bore and the central bore of the rotor (7); maintaining the shaft (5)-cylinder block (3)-rotor (7) assembly inside the hermetic chamber (10) immobilized until the diametrical thermal dilatation of the shaft (5) causes said shaft to be secured to the wall of the central bore of rotor (7) and until a thermal balance between the parts has been achieved.

REFERENCES:
patent: 4221488 (1980-09-01), Nunlist et al.

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