Shifting device for a transmission comprising two layshafts
AssigneeZF Friedrichshafen AG
InventorGerhard Buri
Life of this patent
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Abstract
A transmission (68) with load distribution to two countershafts (70, 72) has a switching equipment (2) with a synchronization apparatus (14, 54) and two constant gear wheel trains (42, 44) of which at least one constant gear wheel train (42) serves to transfer torque introduced into the transmission (68) to that countershaft (70) on which an auxiliary output (PTO) is arranged. The gear wheel (40) of the second constant gear wheel train (42), which is not arranged on one of the countershafts (70, 72), is fixed radially in a coupling apparatus (32, 62, 64) such that the coupling apparatus (32, 62, 64) allows radial play of the gear wheel (40) in relation to the shaft (4) on which the gear wheel (40) is arranged. An Oldham clutch (32) represents such a coupling apparatus.
Claims9
A switching equipment (2) for a transmission (68) with load distribution on a first countershaft (70) and a second countershaft (72);
- comprising:
- a first constant gear wheel train (44);
- and
- a second constant gear wheel train (42);
- wherein
- the first constant gear wheel train (41) the second constant gear wheel train (42) each include at least one countershaft gear wheel mounted on a corresponding one of the first countershaft (70) and the second countershaft (72);
- an auxiliary output (PTO) arranged on the first countershaft (70);
- at least one of the first constant gear wheel train (44) and the second constant gearwheel train (42) transfers a torque input to the first countershaft (70);
- and
- a clutch gear wheel (40, 82) of one of the first constant gear wheel train (44) and the second constant gear wheel train (42);
- the clutch gear wheel (40, 82) being mounted on a third shaft (4) and fixed axially in a coupling apparatus (32, 62, 64, 80) such that the coupling apparatus (32, 62, 64, 80) permits radial play of the clutch gear wheel (40, 82) in relation to the third shaft (4);
- and
- the coupling apparatus (32, 62, 64, 80) is engaged between a synchronization apparatus (14) and the clutch gear wheel (40, 82).
Dependencies are inferred from the claim text.