| 摘要 |
FIELD: transportation engineering, in particular, technique used in handling and pulling mechanisms. ^ SUBSTANCE: pulling reversible winch has planetary reducer 1, drive mechanism 2 (hydraulic or electric engine), drum 3 with cable, shafts 4 and 5, stem 6 with lever 7, and column 8. Planetary reducer 1 is located within casing 9, is designed on the basis of gear wheel pattern and comprises central gear 10 equipped with outer teeth and connected to input shaft 11, carrier 12 with satellites 13 located in supports of carrier 12, and two central wheels 14 and 15 with inner teeth. Teeth of central wheels 14 and 15 are meshed with elongated teeth of one-crown gear satellites 13. Central wheels 14, 15 are not permanently joined to either of casing and drum. For connecting to said links, central wheel 14 has splined bushing 18 and central wheel 15 has splined bushing 19. Shafts 4 and 5 are equipped with toothed members 21, 22, 23 and 24. Upon movement of shafts, said toothed members come into engagement with mated toothed members provided on drum and winch casing, respectively, to thereby kinematically join outer meshing central wheels alternatively with winch casing or drum and change direction of rotation of drum. ^ EFFECT: increased efficiency by providing rotation of winch drum in both directions and simplified construction. ^ 3 cl, 2 dwg |
