| 摘要 |
<p>The vessel is tilted by a driven shaft which is coaxial with a drive shaft entering the gearbox. Inside the gearbox, the drive shaft forms part of a self-locking planetary gear train which functions both as a speed redn. gear train and also as a brake for the driven shaft. In the pref. gearbox, a sun wheel is fixed on the drive shaft and meshes with planetary gear wheels. The planetary gear wheels mesh with a stationary ring gear with internal teeth, and also with the internal teeth of a ring gear fixed on the driven shaft. One end of the sun wheel is pref. located in a bearing in a recess in the driven shaft. Used for tilting vessels, hoists, valves, shutters etc. where completely reliable braking can be obtd. after a desired angular movement. The gearbox has a compact construction, and eliminates the need for all types of brakes. The driven shaft can be rotated clockwise or anticlockwise.</p> |
