Driving apparatus for vertical rolling mill
AssigneesFEC Co., Ltd., Fuji Electric Co., Ltd.
InventorsIsamu Yoshizawa, Ginjiro Yanai, Seiichi Matsuda
Life of this patent
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Abstract
A driving apparatus for a vertical rolling mill comprises a vertical electric motor mounted on a frame which has a hollow rotary shaft therein supported by a bearing and surrounding a portion of an intermediate shaft. The upper end of the intermediate shaft extends through the hollow rotary shaft and connects to a first universal joint disposed axially above the motor, and which engages the upper end of the hollow rotary shaft. The torque of the hollow rotary shaft is transmitted to the vertical roll through the first universal joint of the intermediate shaft, and a second universal joint.
Claims6
A driving apparatus for a vertical rolling mill, comprising:
- a frame having a lower end portion and an upper end portion vertically disposed above said lower end portion;
- a vertical roll having a vertically extending axis mounted adjacent said lower end portion;
- an electric motor having a stator and armature shaft with a hollow interior mounted on said upper end portion, said motor having a vertically extending axis of rotation;
- a first universal joint attached to said hollow shaft and disposed above said upper end portion of the frame;
- a second universal joint attached to said vertical roll;
- and
- an intermediate shaft, having an upper end extending into said hollow shaft, attached to said first universal joint, and having a lower end attached to said second universal joint for driving said vertical roll.
Dependencies are inferred from the claim text.