| 摘要 |
PURPOSE:To reduce remarkably the processing accuracy and adjusting time of a rotary drum by adjusting automatically a gap of a rotary transformer with a dynamic pressure bearing incorporated with the rotary transformer. CONSTITUTION:A signal transmission means (rotary transformer) 1 is rotated with a shaft 2 and the rotary transformer 3 is used as a stator. A face of a part of the rotary transformer 1 opposite to the rotary transformer 3 is provided with a plane dynamic pressure bearing 4 and a face of the rotary transformer 3 opposite to the dynamic pressure bearing 4 is provided with a flat part 5 ensuring the pressure of the dynamic pressure bearing 4 to a prescribed value. The rotary transformer 1 and 3 are fitted respectively to a rotary drum 6 and a fixed drum 7. Thus, a minute gap S1 is obtained automatically between the rotary transformers 1 and 3 through the action of the dynamic pressure bearing 4 and it is not required at all to adjust the gap at the assembling.
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