A centrifugal pendulum device having a wave spring shim; clutch discs; and a power train
阅读说明:本技术 具有波形弹簧垫片的离心摆装置;离合器盘片;以及传动系 (A centrifugal pendulum device having a wave spring shim; clutch discs; and a power train ) 是由 J·马特斯 E·弗朗茨 A·鲁施 M·黑斯勒 M·凯斯勒 T·格迈纳 P·平瑙 C·考 于 2019-02-05 设计创作,主要内容包括:本发明涉及一种用于机动车辆的传动系的离心摆装置(1),其包括:支撑件(3),其能够绕旋转轴线(2)旋转;摆质量(5),其被接纳在所述支撑件(3)上以便沿着开槽导轨(4)摆动,使得所述摆质量(5)在操作期间产生逆着旋转不规则性定向的回复转矩;接触元件(6),其以相对可移动方式抵靠着所述摆质量(5);以及波形弹簧垫片(7a、7b),其在所述旋转轴线(2)的轴向方向上按压所述接触元件(6)抵靠所述摆质量(5),其中所述弹簧垫片(7a、7b)在紧固区域(8)处旋转地固定到所述支撑件(3),并且所述弹簧垫片(7a、7b)的所述紧固区域(8)连接到固定到所述支撑件的部件(9),并且在所述轴向方向上朝向所述摆质量(5)突出。本发明另外涉及包括所述离心摆装置(1)的离合器盘片(20)和传动系。(The invention relates to a centrifugal pendulum device (1) for a drive train of a motor vehicle, comprising: a support (3) rotatable about a rotation axis (2); a pendulum mass (5) received on the support (3) so as to swing along a slotted guide rail (4) such that the pendulum mass (5) generates a restoring torque oriented against rotational irregularities during operation; a contact element (6) which bears against the pendulum mass (5) in a relatively movable manner; and a wave spring washer (7a, 7b) pressing the contact element (6) against the pendulum mass (5) in an axial direction of the axis of rotation (2), wherein the spring washer (7a, 7b) is rotationally fixed to the support (3) at a fastening area (8), and the fastening area (8) of the spring washer (7a, 7b) is connected to a component (9) fixed to the support and protrudes in the axial direction towards the pendulum mass (5). The invention further relates to a clutch disk (20) and a drive train comprising the centrifugal force pendulum device (1).)
1. A centrifugal pendulum device (1) for a drive train of a motor vehicle, having: a support (3) rotatable about a rotation axis (2); a pendulum mass (5) received on the support (3) so as to swing along a slotted guide rail (4) such that the pendulum mass (5) generates a restoring torque oriented against rotational irregularities during operation; a contact element (6) which bears against the pendulum mass (5) in a relatively movable manner; and a wave spring washer (7a, 7b) pressing the contact element (6) against the pendulum mass (5) in an axial direction of the axis of rotation (2), wherein the spring washer (7a, 7b) is rotationally fixed to the support (3) at a fastening area (8), characterized in that the fastening area (8) of the spring washer (7a, 7b) is connected to a component (9) fixed to the support and protrudes in the axial direction towards the pendulum mass (5).
2. Centrifugal pendulum device (1) according to claim 1, characterized in that the means (9) fixed to the support is formed by a spacer peg (11), the spacer peg (11) connecting two support areas (10a, 10b) of the support (3) arranged spaced apart in the axial direction.
3. Centrifugal pendulum device (1) according to claim 1 or 2, characterized in that the spring washer (7a, 7b) directly forms a connecting tab (12) as fastening area (8), the connecting tab (12) being fastened to the component (9) fixed to the support.
4. Centrifugal pendulum device (1) according to claim 1 or 2, characterized in that the spring washer (7a, 7b) has a connecting element (13) which forms the fastening region (8) and is fastened to the component (9) which is fixed to the support.
5. Centrifugal pendulum device (1) according to one of claims 1 to 4, characterized in that the fastening area (8) is provided with a receiving hole (14) and that the part (9) fixed to the support penetrates this receiving hole (14) in the axial direction.
6. Centrifugal pendulum device (1) according to one of claims 1 to 5, characterized in that the fastening region (8) is connected to the component (9) which is fixed to the support in such a way that the wave spring region (15) of the spring washer (7a, 7b) can be deformed unhindered in the axial direction.
7. Centrifugal pendulum device (1) according to one of claims 1 to 6, characterized in that the fastening region (8) is connected to the component (9) fixed to the support in a material-fitting manner.
8. Centrifugal pendulum device (1) according to one of the claims 1 to 6, characterized in that the fastening area (8) is connected to the component (9) fixed to the support in a male and/or female fit.
9. Clutch plate (20) for a friction clutch of a motor vehicle, having a centrifugal pendulum device (1) according to one of claims 1 to 8 and a friction element (23) rotationally fixed to the support (3).
10. Drive train for a motor vehicle with a centrifugal pendulum device (1) according to one of claims 1 to 8, wherein the support (3) is rotationally fixed to a drive shaft.
Technical Field
The invention relates to a centrifugal pendulum device (also referred to in abbreviated form as a centrifugal pendulum) for a drive train of a motor vehicle (for example a passenger car, truck, bus or other commercial vehicle), having: a support rotatable about a rotation axis; a pendulum mass received on the support for swinging along a slotted guide rail, such that the pendulum mass generates a restoring torque directed against rotational irregularities (of the drive train) during operation (of the centrifugal pendulum device); a contact element which bears against the pendulum mass in a relatively movable manner; and a wave spring washer (also referred to as wave washer) pressing the contact element against the pendulum mass in an axial direction of the axis of rotation, wherein the spring washer is rotationally fixed to the support at a fastening area. The invention also relates to a clutch disk and a drive train each having the centrifugal pendulum device.
Background
Centrifugal pendulums in general are already known from the prior art. The basic structure of a centrifugal pendulum device is disclosed, for example, in DE 102013203694 a 1. Furthermore, DE 102010049553 a1 discloses a centrifugal pendulum device with a component which inhibits the movement of at least one pendulum mass as a function of the rotational speed.
DE 102014211711 a1 discloses: the pendulum suspended in the pendulum flange in the centrifugal force field of the rotating pendulum flange is pretensioned axially relative to the pendulum flange to prevent the pendulum from striking the pendulum flange again. This pretensioning takes place by means of a contact element which is inserted axially between the part of the pendulum flange and the pendulum.
Disclosure of Invention
The applicant is also aware of domestic prior art which has not yet been published but has been filed under document No. 102017104968.1 as a german patent application on 3.9.2017. Disclosed herein are bending springs designed as wave washers.
However, because of the disadvantages of the designs known from the prior art, it has been found that the production of spring washers for pressing the corresponding contact element against the pendulum mass is relatively complicated. This is due in particular to the fact that: receiving the spring washer on the support is relatively complicated. The support geometry on the spring washer is realized in such a way that the manufacturing tools required for its manufacture are relatively complex and therefore relatively prone to failure.
The object of the present invention is therefore to eliminate the disadvantages known from the prior art and to reduce the manufacturing effort of centrifugal pendulum devices.
This is achieved according to the invention in that the spring washer is connected at the fastening region to a component fixed to the support and projects in the axial direction towards the pendulum mass.
This makes it possible to mount a previously manufactured relatively complex wave spring washer in a rotationally fixed manner to the support in a much simpler manner. The spring washer no longer needs to be provided with additional axially projecting tabs, which previously made the manufacture of the wave spring washer significantly more difficult. The spring washer is simply attached to a component which is fixed to the support in a particularly simple manner.
Further advantageous embodiments are claimed by the dependent claims and are explained in more detail below.
Therefore, the following is also advantageous: the part fixed to the support is formed by a spacer peg, which connects two support areas of the support that are spaced apart from each other in the axial direction. Thus, the component provided in any manner on the support is intended to receive the wave spring washer. This further reduces manufacturing effort.
The number of components is further reduced if the spring washer immediately forms/takes the form of a connecting tab (preferably projecting outwards in the radial direction) which is attached as a fastening area to a component fixed to the support.
The following is also advantageous: the spring washer alternatively has a (separate) connecting element forming a fastening area and fastened to a component fixed to the support. Thus, the area of the wave spring washer that is connected to the component fixed to the support is simple to produce.
In this context, the connecting element is preferably fastened to the annular section of the spring washer.
The following is also advantageous: the fastening area of the spring shim is provided with a receiving hole, such as a circular through hole or a radially outwardly open (through) hole, seen in cross section, which is preferably in the form of a cut, and through which a part fixed to the support penetrates in the axial direction. The fastening region is therefore simply connected in the circumferential direction to the component fixed to the support in a male-fit manner.
If the fastening region of the spring washer is connected to the component fixed to the support in such a way that the wave/curved spring region of the spring washer, which preferably adjoins the fastening region in the circumferential direction, can be deformed in the axial direction unhindered, the spring stroke of the spring washer and the axial force exerted by the spring washer are largely unaffected during operation.
For the attachment of the fastening region to the component fastened to the support, the following is also advantageous: the fastening region is preferably connected in a material-fitting manner to the component fixed to the support via an adhesive, a welded or soldered connection.
Alternatively, the following is expedient: the fastening area is connected to the component fixed to the support in a male and/or female fit. This further reduces assembly time.
The spring washer is preferably fitted all the way to the centrifugal pendulum/support, centered on its axis of rotation and fastened against rotation.
The invention further relates to a clutch plate for a friction clutch of a motor vehicle, having a centrifugal force pendulum device according to the invention according to at least one of the embodiments described above and having a friction element rotationally fixed to a support.
Furthermore, the invention relates to a drive train for a motor vehicle with a centrifugal pendulum device according to the invention according to at least one of the above-described embodiments, wherein the support is rotationally fixed to a transmission shaft, such as an output shaft of an internal combustion engine or a transmission input shaft. The centrifugal force pendulum device is in turn a component of the clutch disk of the friction clutch or is arranged outside the clutch disk/friction clutch.
In other words, according to the invention, a clutch disk with a centrifugal pendulum is achieved, wherein a wave washer (spring washer) is connected to the spacer bolt of the centrifugal pendulum. Preferably, an assembly of clutch disks and a centrifugal force pendulum is proposed, wherein the centrifugal force pendulum is fastened to the clutch disks or is arranged in the axial direction within the installation space of the clutch and/or is rotationally fixed to the clutch disks via the transmission input shaft. The wave washer is connected to a spacer peg connecting the two pendulum flanges (support areas of the support), wherein the pendulum mass is arranged in the axial direction between the pendulum flanges, is fitted or connected to the spacer peg to prevent the wave washer from slipping or twisting.
Drawings
The invention will now be explained with reference to the drawings, in which various exemplary embodiments are also shown,
wherein:
fig. 1 shows a longitudinal sectional view of a centrifugal force pendulum device according to the invention according to a preferred exemplary embodiment, wherein the arrangement of two spring washers axially inserted between several pendulum masses and a support of the centrifugal force pendulum device is visible,
fig. 2 shows a longitudinal section through the centrifugal force pendulum device according to fig. 1 in a detail region, which shows the fastening between the spring washer and the spacer bolt of the support,
fig. 3 shows a further longitudinal sectional view of the centrifugal pendulum device according to fig. 1, wherein the support of the spring washer is visible on the part of the contact element connected to the pendulum mass,
fig. 4 shows a longitudinal sectional view of the centrifugal force pendulum device according to fig. 1 to 3 with clutch disks, wherein the centrifugal force pendulum device is visible on the axial side,
figure 5 shows a side view of the clutch plate according to figure 4,
fig. 6 shows a plan view of one of the spring washers used in the centrifugal force pendulum device of fig. 1 to 3, wherein the spacer pins connected to the fastening areas of the spring washer are schematically shown,
fig. 7 shows a perspective illustration of the spring washer according to fig. 6, wherein a plurality of wave spring regions of the spring washer formed in the circumferential direction between the fastening regions can be seen,
fig. 8 shows a plan view of a spring shim as used in a centrifugal pendulum device according to the invention in a second exemplary embodiment, wherein the spring shim does not have a receiving hole which is open radially outward, but a circular receiving hole for receiving a spacer bolt, in comparison with the spring shim of the first exemplary embodiment,
fig. 9 shows a plan view of a spring washer as used in a centrifugal force pendulum device according to the invention in a third exemplary embodiment, wherein the receiving peg is riveted to the receiving hole,
fig. 10 shows a plan view of a spring shim as used in a centrifugal force pendulum device according to the invention in a fourth exemplary embodiment, wherein the spacer pins are welded to the fastening region in the region of the receiving holes,
fig. 11 shows a plan view of a spring shim as used in a centrifugal pendulum device according to the invention in a fifth exemplary embodiment, wherein the receiving holes welded to the respective spacing pins open out in the radial direction compared to fig. 10,
fig. 12 shows a plan view of a spring washer as used in a centrifugal pendulum device according to the invention in a sixth exemplary embodiment, wherein the fastening region of the spring washer has a connecting element connected to the spacer bolt, which is fastened to the ring segment of the spring washer,
fig. 13 shows a plan view of a spring shim as used in a centrifugal pendulum device according to the invention in a seventh exemplary embodiment, wherein the receiving holes made in the connecting element open out in the radial direction compared to the exemplary embodiment of fig. 12,
fig. 14 shows a plan view of a spring washer as used in a centrifugal force pendulum device according to the invention in an eighth exemplary embodiment, wherein the connecting element is attached to the ring segment via a pin segment in a male-fit manner,
fig. 15 shows a plan view of a spring shim as used in a centrifugal force pendulum device according to the invention in a ninth exemplary embodiment, wherein the receiving holes made in the connecting element open out in the radial direction compared to the exemplary embodiment of fig. 14,
fig. 16 shows a plan view of a spring washer as used in a centrifugal force pendulum device according to the invention in a tenth exemplary embodiment, in which the connecting element has been ejected around the ring segment immediately during the one-shot forming process of the ring segment, and
fig. 17 shows a plan view of a spring washer as used in a centrifugal force pendulum device according to the invention in an eleventh exemplary embodiment, wherein compared to fig. 13 a circular receiving hole is formed in the respective connecting element.
Description of the reference numerals
1
Detailed Description
The drawings are merely schematic in nature and are used for understanding the present invention. Like elements have like reference numerals. The different features of the various exemplary embodiments may also be freely combined with each other.
In fig. 1 to 3, the basic structure of a centrifugal force pendulum device 1 according to the invention can be seen according to a first exemplary embodiment. The centrifugal force pendulum device 1 is preferably part of a
According to fig. 1, the centrifugal force pendulum device 1 has a
A plurality of
Fig. 3 shows the
The
The
Each
As can also be seen from fig. 6, the three
In the first exemplary embodiment according to fig. 1 to 7, the
The receiving
In conjunction with fig. 8 to 17, various exemplary embodiments of a centrifugal force pendulum device 1 according to the invention are shown below, which differ only in the illustrated embodiments of the
According to the second exemplary embodiment according to fig. 8, the
As can be seen from the exemplary embodiment according to fig. 9, instead of a purely male-fitting connection, a female-fitting and male-fitting connection for fastening the
Two further exemplary embodiments are shown in connection with fig. 10 and 11. It follows that instead of a connection by means of a male and/or female fit, a material-fit connection between the spacer pins 11 and the
In fig. 10, the connecting
In fig. 11, the
In connection with the exemplary embodiments of fig. 12 to 17, it can also be seen that the
In fig. 12, the connecting
In fig. 13, the receiving holes 14 are designed as notches/cut-outs which open out in the radial direction compared to fig. 12, as is also achieved in the first exemplary embodiment. As already shown in fig. 12, the respective spacer bolt 11 is also secured to the connecting
In fig. 14 and 15, the connecting
In fig. 16, the connecting
The two exemplary embodiments according to fig. 16 and 17 differ from each other in that: the receiving
In other words, the design according to the invention provides a particularly elegant attachment, centering and anti-rotation of the wave washers (
According to the embodiment in fig. 1 to 11, the wave shaped
According to the explanations of fig. 12 to 17, the
The embodiments mentioned in connection with fig. 12 to 17 can also be realized by means of materials which cooperate in the form of an adhesive or have an additionally applied adhesive.