Clutch device
阅读说明:本技术 离合器设备 (Clutch device ) 是由 朱利安·拉尔比希 奥利弗·内尔 于 2018-06-27 设计创作,主要内容包括:本发明涉及一种离合器设备,其包括至少一个离合器装置(2、3)以及后接于该离合器装置的用于操纵离合器装置(2、3)的接合装置(18),其中,离合器装置(2、3)利用构件(4)经由轴承(31)径向定心在位置固定的设备构件(32)上,其中,被轴向支撑的接合装置(18)经由另外的轴承(29)仅径向定心在离合器装置(2)的与第一构件(4)连接的另外的构件(28)上。(The invention relates to a clutch device comprising at least one clutch device (2, 3) and an engagement device (18) connected downstream of the clutch device for actuating the clutch device (2, 3), wherein the clutch device (2, 3) is radially centered by means of a component (4) on a stationary device component (32) via a bearing (31), wherein the axially supported engagement device (18) is only radially centered on a further component (28) of the clutch device (2) connected to the first component (4) via a further bearing (29).)
1. Clutch device comprising at least one clutch device (2, 3) and an engagement device (18) connected downstream of the clutch device for actuating the clutch device (2, 3), wherein the clutch device (2, 3) is radially centered by means of a component (4) on a stationary component (32) via a bearing (31), characterized in that the axially supported engagement device (18) is only radially centered on a further component (28) of the clutch device (2) connected to the first component (4) via a further bearing (29).
2. A clutch arrangement according to claim 1, characterized in that the first member is an outer diaphragm support (4) or an inner diaphragm support and the second member is a support plate (28) connected with the first member.
3. A clutch arrangement according to claim 1 or 2, characterized in that the first bearing (31) is a fixed bearing which is not axially movable and the second bearing (29) is a floating bearing which is axially movable.
4. Clutch arrangement according to any of the preceding claims, wherein a radial bearing seat (30) is provided on the engagement means (18), on which bearing seat a bearing (29) is placed which externally surrounds the engagement means (18).
5. Clutch arrangement according to any one of the preceding claims, wherein the engagement means (18) is axially pressed towards the abutment (19) via at least one spring element (16, 17) provided on the clutch means side.
6. Clutch arrangement according to any one of the preceding claims, wherein the spring elements (16, 17) are disc springs against which annular operating elements (14, 15) axially movable via the engagement means (18) are movable.
7. Clutch device according to one of the preceding claims, characterized in that two radially nested or axially successively arranged clutch means (2, 3) are provided, which each comprise an outer diaphragm support (4, 9) and an inner diaphragm support (6, 11) which can be separately actuated via the engagement means (18).
8. Clutch arrangement according to any one of the preceding claims, wherein the hydraulically operable engagement device (18) has at least one axially limited blind bore (24) via which hydraulic fluid can be conveyed, which hydraulic fluid can be guided via a fluid channel (25) communicating with the blind bore (24) into an annular channel (26, 27) which is delimited via an axially movable annular adjusting element (20, 21), wherein the axial area of the blind bore (24) which is loaded by hydraulic fluid is smaller than the area of the annular adjusting element (20, 21) which can be loaded.
9. Clutch arrangement according to any of the preceding claims, characterized in that it is a wet clutch, in particular a wet dual clutch.
Technical Field
The invention relates to a clutch device comprising at least one clutch device and an engagement device connected downstream of the clutch device for actuating the clutch device, wherein the clutch device is centered radially on a stationary device component by means of a component via a bearing.
Background
Clutch devices of this type are known for establishing a torque-transmitting connection between a drive element, for example an internal combustion engine, and a driven element, for example a transmission. For this purpose, at least one clutch device is provided, which is usually designed as a diaphragm clutch. The diaphragm clutch comprises an outer diaphragm support, on which an axially movable outer diaphragm is arranged, and an inner diaphragm support, on which an axially movable inner diaphragm is likewise arranged, which is inserted between the outer diaphragms. The outer diaphragm support is connected, for example, to the drive element, while the inner diaphragm support is connected, for example, via a hollow shaft to the driven element.
In order to press the clutch device together, in order to thus close it in a torque-transmitting manner, a normally hydraulically actuated coupling device is used. Hydraulic fluid is supplied to the hydraulic device, via which hydraulic fluid an annular piston is moved axially, which in turn is coupled to an actuating element coupled to the diaphragm clutch device, for example to a pressure head, which can be moved axially and presses the diaphragm assembly together.
In addition to such single clutches, it is also known to implement the clutch device in the form of a double clutch. In this case, for example, two such clutch devices are provided, which are arranged radially one inside the other, and which can be actuated via a common coupling device, but separately via separate actuating elements, for example, rams, in each case, i.e. either one of the rams can be actuated for actuating one of the clutch devices or the other ram can be actuated for actuating the other clutch device. Each inner diaphragm carrier of these clutch devices is connected to a separate output element, a separate hollow shaft or the like, so that individual transmission parts can be coupled depending on the actuated clutch device.
Such single clutch or double clutch constructions are well known. Exemplary references are made to DE 102010051447 a1 or DE 102010052384 a 1.
In the known clutch devices, the engagement means are annular structural components, since one or more annular piston units are provided and are fixedly connected by one or more driven hollow shafts, for example by screwing, to a transmission housing or transmission base, for example with a corresponding cylindrical receptacle or the like, the clutch device itself is usually supported or force-locked (kraftsch ü ssig) via an outer diaphragm carrier on a stationary device component, for example a transmission cover or the like, and on the other hand is supported, for example via a support plate fixedly connected to the outer diaphragm carrier and a further bearing, on the engagement means fixedly connected to the transmission base.
Disclosure of Invention
The object of the present invention is therefore to provide a correspondingly improved clutch device.
In order to solve this problem, it is provided according to the invention that the axially supported engagement device is only radially centered on a further component of the clutch device connected to the first component via a further bearing.
The invention provides that the coupling device is only radially centered on the clutch device, i.e. is integrated on the clutch device side. The engagement device is supported, for example, only axially on the transmission housing or the transmission base. Here, no radial centering or guiding takes place. This radial centering is carried out only on the other component of the clutch device, which is fixedly connected to the first component, via which the clutch device itself is radially supported and centered on the other end on a stationary component, for example a transmission housing cover. That is, the engaging means and the clutch means are centered on one and the same axis. This provides a number of advantages.
On the one hand, there are no centering errors due to different bearing axes, since the orientation and centering of the engagement device takes place inside the clutch and not via the transmission housing, so that the engagement bearing axis is optimally oriented toward or coincides with the cover bearing axis of the clutch device. The screw connection between the coupling device and the gear housing or the gear base is no longer required, since the coupling device is supported there only axially. Furthermore, the two devices do not have to be mounted separately and separately from one another. Instead, the coupling device can already be preassembled on the clutch device and the entire system can then be mounted on the transmission housing side.
In a development of the invention, the first component can be an outer membrane support or an inner membrane support, and the second component can be a support plate connected to the first component. The clutch device is therefore supported on one side via the outer membrane carrier and the radial or radial thrust bearing there and is mounted in rotation on the transmission cover. Depending on the type of construction of the clutch device, this support can also be effected via the inner diaphragm carrier. The bearing on the other clutch device side is carried out via an annular support plate which is fixedly connected to the outer or inner diaphragm carrier and which bears or pivots on the coupling device via a further bearing.
The first bearing is itself a fixed bearing which cannot move axially, i.e. the clutch device is supported and supported to the transmission cover via the fixed bearing. The second bearing, which supports the clutch device on the coupling device or centers the coupling device on the clutch device, is expediently an axially movable floating bearing. In other words, the clutch device is mounted at two bearing points, one of which is a purely fixed bearing and the other of which is a purely floating bearing. The unbalanced forces can thus be supported at the two bearing points. Due to the clear fixed-floating bearing, the bearing is not over-determined. The floating bearing is also particularly suitable when the clutch device, which is supported on the transmission cover as described, is operated, since the transmission cover can be deflected to a minimum extent as a result of a given axial force, a minimal axial movement of the clutch device occasionally occurring. This movement can be easily compensated for on the basis of the floating bearing of the support plate.
In order to easily center or couple the coupling device and the clutch device via a further bearing, the coupling device expediently has a radial bearing seat on which a bearing is seated which surrounds the coupling device on the outside. The bearing seat is preferably designed such that it can be mounted in a floating manner, thus allowing axial mobility of the further bearing.
As mentioned, the engagement device is supported only axially on the transmission housing or housing base. In order to achieve a fixed, permanent support, a suitable development of the invention provides that the coupling device is pressed axially against the bearing, i.e. against the gear housing or the gear base, via at least one spring element arranged on the clutch device side. In contrast, a spring element (e.g., a disk spring), which moves an annular actuating element (e.g., the above-described ram) that is axially movable via the coupling device, is arranged on the clutch device side and is now used to press the actuating element axially against the transmission bottom in addition to providing a restoring force. The coupling between the engagement device and the spring element (i.e. for example a disk spring) is effected via an actuating element which is rotatably mounted on the engagement device via a bearing or is coupled to the annular piston in a known manner. Since a spring element, which is also referred to as an air spring, can also be arranged and pretensioned between the transmission cover and the engagement device, a support is also provided on the transmission cover. The coupling device is thus axially pressed by the spring force of the spring element (i.e. the air spring) in the non-actuated state of the clutch and is axially pressed as a result of the actuating force in the actuated state of the clutch.
As already mentioned, clutch devices having different designs are known. In addition to a single clutch, the clutch device according to the invention can also comprise two clutch devices which are arranged radially one inside the other or axially one behind the other and each have an outer diaphragm carrier and an inner diaphragm carrier which can be actuated separately via the coupling device. Each clutch device therefore has a diaphragm set comprising an outer diaphragm and an inner diaphragm arranged on the respective outer and inner diaphragm carrier, and having separate actuating elements. Each actuating element can be actuated by a common coupling device, for example, via separate annular pistons, in the case of a radial arrangement, wherein, for this purpose, it is mandatory that each annular piston can be hydraulically moved separately via a coupling device. The two clutch devices are supported, for example, only via the outer diaphragm carrier of the clutch device located radially outside, which is coupled to the outer diaphragm carrier of the second clutch device located radially inside via the connecting webs. Thus, even in the case of this dual clutch, a bearing plane on the transmission cover side is provided only via the fixed bearing. The support on the other side is also only via the support plate connected to the outer membrane support, which leads to the engagement means. The second clutch device, which is located further radially inside, therefore does not participate in supporting and centering the entire clutch system. But axial arrangement can also be achieved as described.
In a further development of the invention, it can be provided that the hydraulically actuable engagement device has at least one axially limited blind bore via which hydraulic fluid can be supplied, the hydraulic fluid being able to be conducted into the annular channel via a fluid channel which communicates with the blind bore, the annular channel being delimited by an axially movable annular adjusting element, wherein the axial area of the blind bore which is acted on by the hydraulic fluid is smaller than the area of the annular adjusting element which can be acted on, the engagement device, as described, having an axially movable annular adjusting element, i.e. an annular piston, which is coupled to an actuating element, e.g. a pressure head, for moving the annular piston, it being necessary to supply the hydraulic fluid for this purpose, at least one axially limited blind bore is provided on the engagement device, to which a respective supply line is coupled, the hydraulic fluid passing from the blind bore via the respective fluid channel into the annular channel delimited by the annular piston, it being provided according to the invention that the axial area of the blind bore which is acted on by the hydraulic fluid is smaller than the area of the annular piston which is acted on, i.e. when the engagement device is provided with such an axial force which acts on, and the annular piston is not acting on, the engagement device, it is still being pressed against the axial force of the housing, i.g. when the clutch device is not acting on, it is pressed against, it is not pressed against the axial force of the axial direction, which is clearly occurs, which is caused by the axial force of the engagement device, i.e. when the axial force of the engagement device, which is not acting on the clutch device, which is clearly occurs, which is not by the axial force of the engagement device, i.e. when the axial pressure of the engagement device, which is clearly acting on the clutch device, which is not acting on the clutch device, i.e. when the clutch device, which is not acting on the clutch device, which is not the clutch device, which is clearly acts, which is not acting on the clutch device, which is not acting as well as it is clearly acts, which is not acting as a clearly acts, i.e. when the axial force of the clutch device, which is not acting as a clearly acts, which it is not acting on the.
The clutch device itself can finally be a wet clutch, in particular a wet double clutch.
Drawings
The invention is explained below with reference to embodiments with reference to the drawings. The figures are schematic and wherein:
fig. 1 shows a schematic diagram of a clutch device according to the invention in the form of a double clutch in a partially cut-away view;
FIG. 2 shows the clutch apparatus of FIG. 1 with an additional illustration of the axial area on the engagement device that is loaded with hydraulic fluid; and
fig. 3 shows the clutch device from fig. 1, which is plotted with the force flow during actuation of the clutch device.
Detailed Description
Fig. 1 shows a clutch device 1 according to the invention, the clutch device 1 comprising a first clutch device 2 and a second
Furthermore, an
The
A plurality of inner diaphragms are arranged on the
The clutch device 2 or the
In order to obtain this axial movement and thus to actuate one or the other
For the axial movement of the one or the other adjusting
As mentioned, the engagement means 18 are supported only axially on the
On the other side, the clutch device 2 is supported radially and axially via the outer membrane carrier 4 by means of a
However, the
This makes it possible to integrate the
In the unactuated state of the
However, if the
When actuating one of the
List of reference numerals
1 Clutch device
2 Clutch device
3 Clutch device
4 outer diaphragm support
5 coupling section
6 inner diaphragm support
7 diaphragm group
8 coupling section
9 outer diaphragm support
10 connecting tab
11 inner diaphragm support
12 diaphragm group
13 coupling section
14 operating element
15 operating element
16 disc spring
17 disc spring
18 joining device
19 bottom of transmission
20 adjusting element
21 adjusting element
22 bearing
23 bearing
24 blind hole
25 fluid channel
26 fluid channel
27 annular channel
28 supporting plate
29 bearing
30 bearing seat
31 bearing
32 Transmission cover
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