Rotationally fixed connection of two parts of a transmission for transmitting torque
AssigneeZF Friedrichshafen AG
InventorsMartin Brehmer, Gabor Diosi, Josef Haupt
Life of this patent
Estimating the term…
Abstract
A rotationally fixed connection of first and second components (2, 4) of a transmission (1) for torque transfer. The fixed connection is produced by the combination of two different types of connection elements (6, 7, 8, 9), such that the connection elements (6, 8) of a first type ensures the mutual centering of the first and the second components (2, 4) to be connected and torque transfer, while the connection elements (7, 9) of a second type enable the first and the second components (2, 4) to be axially fixed and transfer axial operating forces.
Claims12
A rotationally fixed connection of first and second components (2, 4) of a transmission (1) for torque transfer, the first and second components (2, 4) being coupled to one another by mating base surfaces supporting the rotationally fixed connection, and the first and second components (2, 4) each comprising a cylindrical section which extends away from the mating base surfaces, the cylindrical section of the first component extends in a first axial direction and the cylindrical section of the second component extends in a second axial direction opposite the first axial direction and the rotationally fixed connection comprising:
- a combination of a mating pair of a first type of connection elements (6, 8) and a mating pair of a different second type of connection elements (7, 9),
- the mating first type of connection elements (6, 8) ensuring torque transfer and mutual centering of the first and the second components (2, 4) to be connected, but without restraining the first and the second components (2, 4) from axially separating from one another,
- while the mating second type of connection elements (7, 9) enabling axial fixing of the first and the second components (2, 4) to prevent axial separation of the first and the second components (2, 4) from one another and transfer of axial operating forces,
- a plurality of first members (6) of the first type of connection elements and a plurality of first members (7) of the second type of connection elements both being formed integrally with a first one of the first and the second components (2, 4), and
- a plurality of mating second members (8) of the first type of connection elements and a plurality of mating second members (9) of the second type of connection elements both being formed integrally with a second one of the first and the second components (2, 4).
A rotationally fixed joint for transferring torque within a transmission (1), the joint comprising:
- a first component (2) comprising a cylindrically shaped wall extending in a first axial direction and a base surface with a plurality of slots (6) and a plurality of rivet holes (7), the plurality of slots (6) and the plurality of rivet holes (7) being alternately, uniformly, radially arranged about a circumference of the base surface of the first component (2);
- a second component (4) comprising a cylindrically shaped wall extending in a second axial direction opposite the first axial direction and a base surface with a plurality of coupling elements (8) and a plurality of rivet studs (9), the plurality of coupling elements (8) and the plurality of rivet studs (9) extending from an exterior face of the base surface of the second component (4) and being alternately, uniformly, radially arranged about a circumference of the base surface of the second component (4);
- the base surface of the first component (2) being coaxially aligned with the base surface of the second component (4) such that an exterior face of the base surface of the first component (2) abuts the exterior face of the base surface of the second component (4) and each of the plurality of the slots (6) receives and engages an associated one of the plurality of the coupling elements (8) and each of the plurality of the rivet holes (7) receives and engages an associated one of the plurality of the rivet studs (9);
- and
- engagement between each of the plurality of the slots (6) and the associated one of the plurality of the coupling elements (8) facilitates coaxial alignment of and torque transfer between the first component (2) and the second component (4), and the engagement between each of the plurality of the rivet holes (7) and the associated one of the plurality of the rivet studs (9) facilitates axial coupling of and transfer of axial forces between the first component (2) and the second component (4).
Dependencies are inferred from the claim text.