SPEED REDUCER FOR HOIST

摘要

PURPOSE: A speed reducer for hoist is provided to reduce volume and production cost by getting rid of the configuration of the carrier fixing the planetary gear. CONSTITUTION: The planetary gear(10) includes the short diameter portion(11) and large diameter part(12). Each planetary gear is connected with the oil gear side(20). The reentrant(21) is formed in the both end part of the oil gear side. The steel ball(30) is inserted in a reentrant. The first ring gear(40) installs in the outer side of the short diameter portion of the planetary gear. The first ring gears are engaged with the short diameter portion of the planetary gear. The second ring gear(50) installs in the outer side of the large diameter part of the planetary gear. The second ring gears are engaged with the large diameter part of the planetary gear. The first cover(60) is combined with the outer side of the first ring gears. The second cover(70) is combined with the outer side of the second ring gears. The input shaft(80) including the small-diameter gear(81) is located in the center of the short diameter portion of the planetary gear. The output axis(90) is located in the center of the large diameter part of the planetary gear.