Apparatus for reducing gear train backlash
AssigneeVolvo Lastvagnar AB
InventorsKenneth ASK, Elise Nielsen Hojkrogh, Nils-Olof Hakansson
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Abstract
Apparatus and method for reducing backlash in a gear wheel (10) including at least two interacting gear rims (11, 12) that can rotate in relation to one another. At least one adjusting means (15) is located between the gear rims for adjusting the relative angle of rotation of the gear rims about a common axis of rotation. The adjusting means (15) includes an hydraulic cylinder which is connected to a pressure medium source and is arranged so as to act between two gear rims (11, 12). In this connection, a force arises, which tends to displace one gear rim in relation to the other about the axis of rotation.
Claims20
An apparatus for reducing backlash in a gear wheel (10) comprising:
- at least two interacting gear rims (11, 12) that rotate in relation to one another;
- at least one adjusting means (15) located between the gear rims for adjusting the relative angle of rotation of the gear rims about a common axis of rotation, each of said adjusting means (15) comprising an hydraulic cylinder connected to a pressure medium source and being arranged to act between the two gear rims (11, 12) in such a manner that a force arises that tends to displace one gear rim in relation to the other about the axis of rotation;
- each of the hydraulic cylinders (15) extending at an angle to a disk plane and supported on a part-spherical foot portion (15a) in a bowl-shaped seat (11a) in one gear rim (11) and a corresponding part-spherical head portion (15b) in a bowl-shaped seat (12a) in the other gear rim (12).
An apparatus for reducing backlash in a gear wheel, said apparatus comprising:
- at least two interconnected gear rims relatively rotatable, one to the other, about a common axis of rotation;
- a biasing mechanism interconnected between two of said gear rims, the biasing mechanism being operable to reduce backlash in the gear wheel;
- and
- the biasing mechanism having a longitudinal axis oriented transversely to the gear rims.
11 The apparatus as recited in claim 10 wherein the ball-in-socket arrangement further comprises a part-spherical head receivably supported in a bowl-shaped seat formed as recess in one of the gear rims.
12 The apparatus as recited in claim 9, wherein the ball-in-socket arrangement further comprises a part-spherical head receivably supported in a bowl-shaped seat formed as recess in one of the gear rims.
An apparatus for reducing backlash in a gear wheel, said apparatus comprising:
- at least two interconnected gear rims relatively rotatable, one to the other, about a common axis of rotation;
- at least two biasing mechanisms, each interconnected between two of said gear rims and radially spaced equidistantly about the common axis of rotation, the biasing mechanisms being operable to reduce backlash in the gear wheel;
- and
- the biasing mechanisms each having a longitudinal axis oriented transversely to the gear rims.
Dependencies are inferred from the claim text.