Multi-ratio power-shiftable reversing gear
AssigneeZF Friedrichshafen AG
InventorsFritz Leber, Wolfgang Rebholz
Life of this patent
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Abstract
The invention relates to a powershiftable multi-ratio reversing gear, especially for use in building machines. The clutches (17, 18, 23 and 26) are fitted between a fixed and a loose pinion. The loose pinions, which can rotate at relatively high speeds, are connected to the inner plates of a set of plates (39). The outer plates are fitted in the clutch housing of each of the clutches. This provides advantages for hydraulic operation of the clutches.
Claims10
A multi-ratio powershiftable reversing gear (1) having one input shaft (11), a plurality of countershafts (15, 16, 20 and 21), one reversing gear set (19), clutches (17, 18, 23 and 26) being mounted upon said countershafts (15, 16, 20 and 21), a plurality of loose pinions (13, 14, 22 and 25) which are each selectively non-rotatably connected with a respective one of said countershafts (15, 16, 20 and 21) by said clutches for selecting a gear and a drive direction, and one output gear set (31) with one fixed pinion (24) being mounted upon an output shaft (20);
- wherein said reversing gear set (19) includes one pinion (12) non-rotatably fixed to said input shaft (11) and loose pinions (13, 14) rotatable supported on said respective countershafts (15, 16);
- a fixed pinion (27, 28 and 29) is mounted on each of said respective countershafts (15, 16 and 21) and one loose pinion (25) is rotatably mounted upon said output shaft (20) to form a drive wheel chain (30);
- and said output gear set is formed by said fixed pinion (24) of said output shaft (20) and a first loose pinion (22) supported on a first said respective countershaft (21).
Dependencies are inferred from the claim text.