| 摘要 |
PURPOSE:To enable a driven bevel gear to follow the movement of drive bevel gears without backlash by applying backlash-eliminating turning forces in opposite directions to a pair of drive bevel gears. CONSTITUTION:The inner and outer bevel gears 26, 27 of one drive bevel gear set are pulled in opposite rotating directions by wires 30 and 31 wound around their pulleys, to apply backlash-eliminating force in opposite directions to them. By this construction, a driven bevel gear 35 is pre-pressurized into uniform contact with the inner and outer bevel gears 26-29 without gap and is driven without backlash.
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