Arrangement for grounding a shaft
AssigneeZF Friedrichshafen AG
InventorsChristoph Margraf, Michael Griesbach, Daniel Ortner
Life of this patent
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Abstract
An arrangement (13) for grounding a shaft, in particular an input shaft (2) of a transmission (3), includes a grounding hub (16) via which the shaft to be grounded is electrically conductively connected to a ground, preferably a housing (9). The ground forms a guide bore (25) in which the grounding hub (16) is axially movably guided. The shaft to be grounded is configured as a hollow shaft at least in the region of one axial end (14). In order to ground the shaft, the guide bore (25) is formed on a rod-shaped section (26), by which the ground is guided from the axial end (14) of the shaft to be grounded radially inward and axially into the shaft to be grounded. The guide bore (25) axially overlaps the shaft.
Claims20
An arrangement (13;
- 42;
- 63;
- 65;
- 80), comprising:
- a shaft configured as a hollow shaft at least in the region of one axial end (14) of the shaft;
- a ground forming a guide bore (25;
- 53;
- 70);
- a grounding hub (16;
- 43;
- 66) via which the shaft is electrically conductively connected to the ground, the grounding hub (16;
- 43;
- 66) axially movably guided in the guide bore (25;
- 53;
- 70) of the ground;
- and
- a spring element (29;
- 54;
- 77) that axially preloads the grounding hub (16:43;
- 66) towards a contact (20) at which the grounding hub (16;
- 43;
- 66) is electrically conductively connected to the shaft, the spring element (29;
- 54;
- 77) being supported on a ground side,
- wherein the guide bore (25;
- 53;
- 70) is formed at a rod-shaped section (26;
- 51;
- 69), by which the ground is guided from the axial end (14) of the shaft radially inward and axially into the shaft, and
- wherein the guide bore (25;
- 53;
- 70) axially overlaps the shaft.
An arrangement (13;
- 42;
- 63;
- 65;
- 80), comprising:
- a shaft configured as a hollow shaft at least in the region of one axial end (14) of the shaft;
- a ground forming a guide bore (25;
- 53;
- 70);
- and
- a grounding hub (16;
- 43;
- 66) via which the shaft is electrically conductively connected to the ground, the grounding hub (16;
- 43;
- 66) axially movably guided in the guide bore (25;
- 53;
- 70) of the ground, the grounding hub (16;
- 43;
- 66) comprising a radially outward projecting section (27;
- 47;
- 67),
- wherein the guide bore (25;
- 53;
- 70) is formed at a rod-shaped section (26;
- 51;
- 69), by which the ground is guided from the axial end (14) of the shaft radially inward and axially into the shaft,
- wherein the guide bore (25;
- 53;
- 70) axially overlaps the shaft, and
- wherein the radially outward projecting section (27;
- 47;
- 67), in interaction with a respective ground-side stop (31, 32;
- 73), is configured to limit axial displacement of the grounding hub (16;
- 43;
- 66) relative to the ground in at least one axial direction.
An arrangement (13;
- 42;
- 63;
- 65;
- 80), comprising:
- a shaft configured as a hollow shaft at least in the region of one axial end (14) of the shaft;
- a ground forming a guide bore (25;
- 53;
- 70);
- and
- a grounding hub (16;
- 43;
- 66) via which the shaft is electrically conductively connected to the ground, the grounding hub (16;
- 43;
- 66) axially movably guided in the guide bore (25;
- 53;
- 70) of the ground,
- wherein the guide bore (25;
- 53;
- 70) is formed at a rod-shaped section (26;
- 51;
- 69), by which the ground is guided from the axial end (14) of the shaft radially inward and axially into the shaft,
- wherein the guide bore (25;
- 53;
- 70) axially overlaps the shaft, and
- wherein:
- the grounding hub (43) is secured against rotation on the ground side by at least one ridge (61;
- 64) that projects radially and extends in a circumferential direction over a subsection,
- the at least one ridge (61;
- 64) is formed on the grounding hub (43) or on the ground;
- and
- each of the at least one ridge (61;
- 64) projects into a respective recess (62), each recess delimited on both sides of the ridge (61;
- 64) in the circumferential direction and formed on the ground or on the grounding hub.
Dependencies are inferred from the claim text.