Dumping mechanism of planetarium
The tilting mechanism of planetarium comprises base plate, bearing and internal shaft barrel, the axial lead of the bearing is identical to middle removing shaft, and is an angular bisector of vertical revolving shaft and tilting removing shaft. Said planetarium only has need of turning at 180 deg....
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The tilting mechanism of planetarium comprises base plate, bearing and internal shaft barrel, the axial lead of the bearing is identical to middle removing shaft, and is an angular bisector of vertical revolving shaft and tilting removing shaft. Said planetarium only has need of turning at 180 deg. around middle recolving shaft, it can reach to image position to implement mutual conversion between two positions of horizontal and inclined position. In the course of conversion the cable only has need of twisting at 180 deg. and has no need of swinging. The middle revolving shaft is passed through the centre of fixed star, so that when its position is changed, the centre of fixed star is not moved. As compared with existent technology said invention is simple in structure, low in cost and easy to popularize. |
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