Drive system
A drive system of a vehicle which is operable using muscular energy and/or motor power. The drive system includes a drive unit and a frame interface, the drive unit being at least partially situated between a first wall and a second wall of the frame interface. The drive system further includes a holding device, which holds the drive unit on each of the two walls, the holding device being fixed in place on the second wall; and a tolerance compensation element. The first wall has a first wall opening. The tolerance compensation element is developed in the form of a sleeve and is situated inside the first wall opening. A part of the holding device is disposed inside the tolerance compensation element in an axially movable manner.
1 . A drive system of a vehicle operable using muscular energy and/or motor power, comprising:
a drive unit;
a frame interface, the drive unit being situated at least partially between a first wall and a second wall of the frame interface;
a holding device which holds the drive unit on each of the two walls, the holding device being fixed in place on the second wall; and
a tolerance compensation element, the first wall having a first wall opening, the tolerance compensation element being a sleeve and being situated inside the first wall opening, and a part of the holding device is situated, using the tolerance compensation element inside the wall opening, in an axially movable manner,
wherein the tolerance compensation element inside the wall opening is radially widened by the part of the holding device situated inside the wall opening so as to tension the tolerance compensation element with respect to the first wall.
2 . The drive system as recited in claim 1 , wherein the tolerance compensation element includes a plain bearing bush and a damping sleeve, which surrounds the plain bearing bush.
3 . The drive system as recited in claim 2 , wherein the plain bearing bush and the holding device are configured in such a way that the part of the holding device situated inside the tolerance compensation element widens the plain bearing bush in a radial direction, for a radial tensioning of the tolerance compensation element with respect to the first wall.
4 . The drive system as recited in claim 3 , wherein the plain bearing bush has a slot.
5 . The drive system as recited in claim 4 , wherein the slot of the plain bearing bush is configured with an angle with respect to an axial direction of the plain bearing bush.
6 . The drive system as recited in claim 3 , wherein the part of the holding device situated inside the tolerance compensation element is tapered in a direction of the second wall.
7 . The drive system as recited in claim 3 , wherein the damping sleeve has at least one sealing lip on a radial outer side, and the at least one sealing lip is configured in such a way that an axial form fit exists between the damping sleeve and the first wall when the tolerance compensation element is situated inside the first wall opening.
8 . The drive system as recited in one of claim 7 , wherein the damping sleeve is configured in such a way that the at least one sealing lip is forced radially outward when the part of the holding device is situated inside the tolerance compensation element.
9 . The drive system as recited in claim 3 , wherein the damping sleeve has at least one sealing lip on a radial inner side.
10 . The drive system as recited in claim 2 , wherein the damping sleeve of the tolerance compensation element is made from a vibration-damping material including an elastomer.
11 . The drive system as recited in claim 2 , wherein the plain bearing bush has on an outer circumference a plurality of grooves situated in parallel with a longitudinal direction.
12 . The drive system as recited in claim 1 , wherein:
the drive unit has a through bore, and
the holding device has a through bolt, which is pushed through the through bore.
13 . The drive system as recited in claim 12 , wherein the through bolt is a screw, and the through bolt is screwed into an internal thread of the second wall.
14 . The drive system as recited in claim 13 , wherein the through bolt is screwed into a nut which is situated on the second wall.
15 . The drive system as recited in claim 14 , wherein the nut is situated in a recess of the second wall in a torsionally fixed manner.
16 . The drive system as recited in claim 1 , wherein:
the holding device has two screws, which are situated on a common screw axis, and
the drive unit is fixed in place on one of the first and second walls using a screw.
17 . A drive system of a vehicle operable using muscular energy and/or motor power, comprising:
a drive unit;
a frame interface, the drive unit being situated at least partially between a first wall and a second wall of the frame interface;
a holding device which holds the drive unit on each of the two walls, the holding device being fixed in place on the second wall;
a tolerance compensation element, the first wall having a first wall opening, the tolerance compensation element being a sleeve and being situated inside the first wall opening, and a part of the holding device is situated, using the tolerance compensation element inside the wall opening, in an axially movable manner; and
two sleeves which are inserted into an opening of the drive unit on both sides, each of the sleeves has a shaft and a flange, the shaft is at least partially positioned inside the opening, and the flange is situated outside the opening.
18 . The drive system as recited in claim 17 , wherein each of the sleeves has a damping element, which is situated on a side of the flange facing the drive unit, and the damping element is made from an oscillation-damping material.
19 . The drive system as recited in claim 18 , wherein the damping element surrounds the shaft at least partially.
20 . The drive system as recited in claim 18 , wherein the openings of the drive unit are developed as a shared through bore, and the two sleeves are configured in such a way that, when they are fully inserted into the through bore and in a non-tensioned state, a predefined axial clearance exists between the two sleeves inside the through bore.
21 . The drive system as recited in claim 20 , wherein the predefined axial clearance is configured in such a way that, in a completely tensioned state, the axial clearance is compensated for by a tensioning of the two sleeves with the aid of the through bolt and by an elastic deformation of the damping element.
22 . The drive system as recited in claim 17 , wherein the flange of at least one of the sleeves inserted into the drive unit has a thickness that (i) essentially corresponds to a wall thickness of the shaft of the sleeve, or (ii) corresponds to at least 1.5 times a wall thickness of the shaft of the sleeve.
23 . A vehicle operable using muscular energy and/or motor power, the vehicle comprising:
a drive system including:
a drive unit,
a frame interface, the drive unit being situated at least partially between a first wall and a second wall of the frame interface,
a holding device which holds the drive unit on each of the two walls, the holding device being fixed in place on the second wall, and
a tolerance compensation element, the first wall having a first wall opening, the tolerance compensation element being a sleeve and being situated inside the first wall opening, and a part of the holding device is situated, using the tolerance compensation element inside the wall opening, in an axially movable manner,
wherein the tolerance compensation element inside the wall opening is radially widened by the part of the holding device situated inside the wall opening so as to tension the tolerance compensation element with respect to the first wall,
wherein the drive unit has at least one opening, and two sleeves are inserted into the opening on both sides, each of the sleeves having a shaft and a flange, the shaft being at least partially positioned inside the opening, and the flange being situated outside the opening.
24 . The vehicle as recited in claim 23 , further comprising:
a chainring which is connected to an output shaft of the drive unit, wherein the second wall of the drive system is situated on a side of the chainring.
25 . The drive system as recited in claim 17 , wherein the flange of the sleeve inserted into the opening of the drive unit has a multitude of projecting form-fit elements on the side of the flange that faces the wall, the form-fit elements being arranged in one or more circles concentrically with respect to the through opening of the sleeve.