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AssigneeIndustrial Technology Research Institute
InventorsJinn-Fa Wu, Chiu-Hung Li, Hsi-Hung Hsiao, Chin-Mou Hsu
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A backlash eliminating device for helical gears is provided for a gear transmission system which includes a transmission shaft, two helical gears and a match gear. A sleeve mounted on the transmission shaft has an outer wall, an inner wall and at least two sections of spiral grooves penetrating through the outer wall and the inner wall. The sleeve includes a transmission part and two extremity parts. The transmission part is disposed between the spiral grooves, and is fixedly connected to the transmission shaft. The extremity parts are disposed outside of the spiral grooves. The helical gears are fixedly connected to the two extremity parts. The sleeve having the spiral grooves provides a preload spring force along an axial direction of the transmission shaft, so that the two helical gears are tightly engaged with the match gear.
A backlash eliminating device for helical gears, wherein the backlash eliminating device for helical gears is used in a gear transmission system comprising two helical gears and a match gear engaged with the two helical gears, the backlash eliminating device comprising:
Dependencies are inferred from the claim text.