| 摘要 |
FIELD: machine building.SUBSTANCE: isolating disconnector contains a shaft (12), pulley (1) in rotation engagement with shaft, a spiral spring (2) located between the pulley and spring holder (5), that is suitable for movement relatively to the shaft and pulley, one-side coupling (8) installed on the shaft, first torsional spring (30) and second torsional spring (31) located between the spring holder and one-side coupling. The first torsional spring and the second torsional spring are in detachable friction engagement with the one-side coupling. The first torsional spring and the second torsional spring contain adjacent parallel links and have same diameter. The first torsional spring and the second torsional spring are suitable for engagement with the pulley. The first torsional spring or the second torsional spring leave the friction engagement with the one-side coupling upon its engagement with the pulley.EFFECT: higher device reliability.10 cl, 9 dwg |
