| 摘要 |
<p>A gear reducer, especially for a mixer, has a housing (24) supporting a pinion shaft (37) with a pinion gear (44) rotatably driven by a motor (34), mechanically coupled with a rotatable driven shaft (28) having a driven gear (42) meshing with the pinion gear (44). The driven gear (42) can be coupled, for example, to the impeller of a mixer via a vertical impeller shaft (28). The pinion shaft (37) is carrier in a cartridge (50) that is adjustably mounted to the housing (24) for moving the pinion shaft (37) toward and away from the driven gear (42) and for accommodating pinion gears (44) of different diameters to change the gear reduction ratio without the need to change the driven gear (42) on the impeller shaft (28). The cartridge (50) is pivotally mounted to the housing (24) at a point spaced from the axis of the driven shaft (28) such that the cartridge (50) and the pinion gear (44) can be rotated toward and away from the driven gear (42).</p> |
