| 摘要 |
In a reversing gear mechanism a planetary gearing (6') is arranged between an input and an output shaft (1' 2') including an internally toothed gear (7') in a housing (8') a sun-wheel (11') torsionally rigidly connected to the input shaft (1') and a plurality of planetary wheels (14'), located between the sun-wheel and the gear, and arranged on a common carrier cooperating with an axially movable control sleeve (28). This control sleeve has as its purpose to, in a first axial position, cause a torsionally rigid connection between the shafts (1', 2') so that these jointly rotate in a first rotational direction, and in a second axial position, brake the planetary wheel carrier (16') to a stationary position in which the rotational movement of the input shaft (1') is transmitted to the output shaft (2') by means of the sun-wheel (11') the planetary wheels (14') the gear (7) and the housing (8'), the planetary gears in said second adjustment position causing, on one hand, a reversal of the rotational direction of the input shaft to an opposite rotational direction of the output shaft and, on the other hand, a reduction of the rotational speed of the last mentioned shaft. |
