universal coupling

June 4, 2009 | tags universal coupling  universal joint   | views
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When the two meet the following conditions can be achieved by the transmission output shaft to the drive axle of the equiangular input shaft speed transmission: 1) Drive Shaft Yokes at both ends in the same plane; 2) two-axle 10,000th to the inter-section angle α1 to the 20000th Festival with two inter-axis angle equal to α2. Because of moving, the drive axle to beat in relation to transmission, it is not possible at any time and α1 = α2, transmission can only be approximate to the drive axle speed transmission. Transmission in the above, the inter-axis angle α the greater the rotation shaft of the more uneven, resulting in additional alternating greater load on the mechanical life of more unfavorable, but also reduce the transmission efficiency, so the overall layout of the should minimize the angle between these axes. (3) quasi-constant-velocity joints Common quasi-constant-velocity joints are double-and three-pin type two, and their working principle and double-cross-axis universal joints to achieve the principle of constant speed drive is the same. Duplex-type universal joint is a shaft length will be reduced to a minimum of double cross-axis gear speed universal joints, the equivalent of double-fork shaft and at the same plane at both ends of the universal joints fork. When the input shaft and output shaft of the smaller angle, the arc in the intersection of the two-axle axis perpendicular bisector from the above-mentioned close, α1 and α2 makes the difference is very small, can nearly equal the two-axis angular velocity, so that double Joint-type universal joint, whichever is constant-velocity joints. (4) constant-velocity joints At present, the commonly used car section for Velocity Universal Joint Ball Basket, but also the use of fork-ball joints or free of the three pivot joints. Ball Basket Joint structure shown below. Star-shaped set of 7 or less with the spline shaft 1 connected to the initiative, outside the six arc-shaped surface groove formed within the raceway. 8 spherical shell of the inner surface of a corresponding arc-shaped groove 6 to form outside the raceway. 6 6, respectively, mounted on a steel ball from the six groups on the inside and outside the raceway of the space, and 4 limited Cage in the same plane. Axis by a driving force for the initiative (and star-shaped sets) 6, passed by the ball 8 spherical shell output




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