Gearwheel bearing in gearboxes
AssigneeZF Friedrichshafen AG
InventorsGerhard Führer, Hermann Lanz, Roland Stauber
Life of this patent
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Abstract
In the case of a vehicle transmission (2) with two counter shafts placed in a transmission housing (8) for the distribution of load, with one input shaft (4) and one main shaft (20) coaxially aligned with the input shaft (4), a gear (24) is placed in the area between the input shaft (4) and the main shaft (20). The gear (24) is secured by a bearing (26, 28) between the input shaft (4) and the main shaft (20) and secured radially by bearings between the two counter shafts. The bearing (26, 28) constitutes the exclusive axial bearing between the input shaft (4) and output shaft (20). The axial bearing comprises two axial effective roller bearings (26, 28) which lie on opposed sides of a projection (30) of the gear (24).
Claims5
A vehicle transmission (2) comprising:
- first and second counter shafts for power splitting disposed in a transmission housing (8);
- an input shaft (4);
- a main shaft (20) disposed coaxially with the input shaft (4);
- and
- a gear wheel (24) mounted, via an axial bearing arrangement (26, 28), coaxially between the input shaft (4) and the main shaft (20),
- wherein the gear wheel (24) is supported exclusively between the main shaft (4) and the input shaft (20) by the axial bearing arrangement (26, 28) located therebetween and the gear wheel (24) and the axial bearing arrangement (26, 28) space the main shaft (4) from the input shaft (20) without the main shaft stand the (4) and the input shaft (20) overlapping one another.
A vehicle transmission (2) comprising:
- first and second counter shafts for power splitting disposed in a transmission housing (8);
- an input shaft (4);
- a main shaft (20) disposed coaxially with the input shaft (4);
- a gear wheel (24) mounted via a fist and second axial roller bearings (26, 28) located coaxially between the input shaft (4) and the main shaft (20);
- wherein the gear wheel (24) is exclusively supported by first and second axial roller bearings (26, 28) located between the input shaft (4) and the main shaft (20);
- and
- the second axial roller bearing (26, 28) is sandwiched directly between the input shaft (4) and a first side of a projection (30) of the gear wheel (24), and the first axial roller bearing (26) is sandwiched directly between an opposing second side of the projection (30) of the gear wheel (24) and the main shaft (20) for taking up the axial force, which results from gearing of the main shaft (20) and directly transmitting the axial forces through the input shaft (4) to the transmission housing (8).
A vehicle transmission (2) comprising:
- first and second counter shafts for power splitting disposed in a transmission housing (8);
- an input shaft (4) at least partially disposed within the transmission housing (8);
- a main shaft (20) at least partially disposed within the transmission housing (8), the main shaft (20) being disposed coaxially with the input shaft (4) and having helical gearing imparting an axial force;
- and
- a gear wheel (24) mounted directly between the input shaft (4) and the main shaft (20) solely by an axial bearing arrangement (26, 28) comprising a pair of bearings, the gear wheel (24) and the pair of bearings (26, 28) spacing the main shaft (4) from the input shaft (20) and facilitating a take up axial force imparted by the helical gearing of the main shaft (20) and directly transmitting the axial forces through the input shaft (4) to the transmission housing (8).
Dependencies are inferred from the claim text.