| 摘要 |
PROBLEM TO BE SOLVED: To provide a gearbox having a simple structure with a small number of parts while passing a reliability test.SOLUTION: A gearbox includes a main housing, a cover, a worm wheel and an output shaft. The main housing includes a receiving chamber having a bottom and a hub. The cover is mounted on an opening of the receiving chamber. The worm wheel is installed in the receiving chamber. The output shaft is installed in a center of the worm wheel and coaxially rotatable with the worm wheel. The output shaft extends outwardly through the hub from the receiving chamber. The hub directly supports either the worm wheel or the output shaft.SELECTED DRAWING: Figure 1 |
