| 摘要 |
A transmission, e.g. a wheel hub gear (1), with a load-dependent, controllable splash lubrication. It has a second, oil storage, zone (12), which is a continuation of its housing (2). This oil storage zone (12) has an annular chamber (16). By displacing oil from the first zone (11) into the second zone (12) via an interconnection port (13), a displacement which is achieved by means of centrifugal forces, by draw-tube-like interconnection ports, or by integrated displacement elements (18, 19), one obtains a reduction of the submersion depth (9) of the rotating gear parts (4) to a thickness (8) of an oil ring (7) which forms at the interior casing surface (6). The minimum oil ring (7a) which is thus established secures adequate residual lubrication during normal operation of the gear with minimal energy losses from splashing, etc. For occasional higher loads, e.g. during braking or in heavy duty use, the submersion depth (9) can be rapidly increased using a control device (10), without any pressurized oil circulation system being needed. This changeover can be effected through a simple connection (20, 21) of operating elements. It can be remotely operable or it can be coupled with other activation elements of the gear (switching levers, brakes, clutches, etc.).
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