Worm gear drive with adjustable backlash
AssigneeAUMA Drives GmbH
InventorsTobias Wasser, Holger Graf, Frank Rebhahn, Michael Eleser
Life of this patent
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Abstract
A worm gear drive mechanism (1) having a housing (8), a rotatably mounted worm gear (4) and a worm shaft (2) rotatably mounted at at least one bearing point (7), wherein the bearing point (7) has a displacement element (10) for displacing the axial spacing (17) between the gear axis of rotation (6) of the worm gear (4) and the shaft axis of rotation (5) of the worm shaft (2).
Claims14
A worm gear drive mechanism (1) comprising a worm gear (4) and a worm shaft (2), an axial spacing (17) between a gear axis of rotation (6) of the worm gear (4) and a shaft axis of rotation (5) of the worm shaft (2) is displaceable by an adjustable mounting of the worm shaft (2) allowing movement of the worm shaft (2) in a radial direction relative to the worm gear (4).
The worm gear drive mechanism (1) as claimed in claim 14, further comprising a housing (8) with cylindrical openings (9), into which the threaded rings (10) are screwed.
A method for adjusting a circumferential backlash in a worm gear drive mechanism (1), wherein, starting from a basic setting, the following method steps are carried out repeatedly until a desired circumferential backlash is reached:
- a) inspecting the circumferential backlash between a worm shaft (2) and a worm gear (4),
- b) adapting the circumferential backlash by varying an axial spacing (17) between a gear axis of rotation (6) of the worm gear (4) and a shaft axis of rotation (5) of the worm shaft (2).
Dependencies are inferred from the claim text.