| 摘要 |
The invention relates to a gear box used for producing various speeds in the outlet shaft, starting from a fixed speed of the inlet shaft and which is used in the machine industry, in tools and cars, for example. According to the invention, the gear box is provided with an inlet shaft (1) whereto some gear wheel (7, 8 and 9) make one piece with said inlet shaft and with an outlet shaft (2), both shafts being mounted inside a cylindrical housing (25) wherein some crown gears (22, 23 and 24) rotate freely. A spindle (13) is pressed in a flange (14) on the shaft, whereto some satellite gears ( 10, 11 and 12) rotate freely, the other end of the spindle being pressed in a bearing (14) supported freely by means of a radial bearing (20) onto the inlet shaft (1) so that the gear wheels (7, 8 and 9) should be in meshing with the satellite gears (10, 11 and 12) and said satellite gears are intermeshing with the crown gears (21, 22 and 23). The rotative motion is transmitted to the outlet shaft (2 ) by blocking with some pins (27, 28 or 29) of a single crown gear (22, 23 and 24), the blocking being made by means of another pin (31).
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