Clutch device with additional support bearing and drive unit
阅读说明:本技术 具有附加的支撑轴承的离合器装置以及驱动单元 (Clutch device with additional support bearing and drive unit ) 是由 多米尼克·韦斯 斯特芬·莱曼 于 2019-01-29 设计创作,主要内容包括:本发明涉及一种用于机动车的动力传动系的离合器装置(1),其具有壳体(2)、相对于壳体(2)能转动地支承的承载件(3)、借助其转子(4)抗扭地容纳在承载件(3)上的电机(5)、多个离合器(6,7,8),其中每个离合器(6,7,8)借助离合器组成部分(9b,9c,10a)抗扭地容纳在承载件(3)上,以及至少一个以操纵方式作用于离合器(6,7,8)的从动缸(11a,11b),其中也构成承载件(3)的支承装置的第一支撑轴承(12)直接设置在承载件(3)和壳体(2)之间,其中承载件(3)配备有另一第二支撑轴承(14),其沿着承载件(3)的转动轴线(13)与第一支撑轴承(12)间隔开地设置。此外本发明涉及一种具有该离合器装置(1)的驱动单元(30)。(The invention relates to a clutch device (1) for a drive train of a motor vehicle, comprising a housing (2), a carrier (3) which is mounted so as to be rotatable relative to the housing (2), an electric machine (5) which is accommodated on the carrier (3) so as to be rotationally fixed by means of its rotor (4), a plurality of clutches (6, 7, 8), wherein each clutch (6, 7, 8) is received on the carrier (3) in a rotationally fixed manner by means of a clutch component (9b, 9c, 10a), and at least one slave cylinder (11a, 11b) which acts in an actuating manner on the clutch (6, 7, 8), wherein a first support bearing (12), which also forms a bearing arrangement for the carrier (3), is arranged directly between the carrier (3) and the housing (2), wherein the carrier (3) is equipped with a further second support bearing (14) which is arranged spaced apart from the first support bearing (12) along the axis of rotation (13) of the carrier (3). The invention further relates to a drive unit (30) having such a clutch device (1).)
1. A clutch device (1) for a drive train of a motor vehicle, having: a housing (2); a carrier (3) rotatably mounted relative to the housing (2); an electric motor (5) which is received on the carrier (3) in a rotationally fixed manner by means of its rotor (4); a plurality of clutches (6, 7, 8), wherein each clutch (6, 7, 8) is received on the carrier (3) in a rotationally fixed manner by means of a clutch component (9b, 9c, 10 a); and at least one slave cylinder (11a, 11b) which acts in an actuating manner on the clutch (6, 7, 8), wherein a first support bearing (12), which also forms a bearing arrangement for the carrier (3), is arranged directly between the carrier (3) and the housing (2), characterized in that the carrier (3) is equipped with a further second support bearing (14), which is arranged at a distance from the first support bearing (12) along the axis of rotation (13) of the carrier (3).
2. The clutch device (1) according to claim 1, characterized in that the first support bearing (12) is arranged in the vicinity of a plurality of friction elements (15, 16) of one of the clutches (6, 7, 8) towards a first axial side and the second support bearing (14) is arranged in the vicinity of the friction elements (15, 16) of the clutches (6, 7, 8) towards a second axial side facing away from the first axial side.
3. The clutch device (1) according to claim 1 or 2, characterized in that the second support bearing (14) is incorporated between the carrier (3) and an actuator housing (17) of the at least one slave cylinder (11a, 11 b).
4. The clutch device (1) according to claim 3, characterized in that the second support bearing (14) is fitted between the carrier (3) and a radially outer side (18) of the actuator housing (17).
5. The clutch device (1) according to claim 3 or 4, characterised in that the actuator housing (17) has two slave cylinders (11a, 11b), wherein two fluid chambers (21a, 21b) of the slave cylinders (11a, 11b) which are each delimited by a housing region (19a, 19b) and a piston (20a, 20b) are arranged radially one behind the other.
6. The clutch device (1) according to one of the claims 1 to 5, characterized in that the second support bearing (14) is arranged in axial direction at least partially overlapping with a fluid chamber (21a, 21b) of the at least one slave cylinder (11a, 11 b).
7. The clutch device (1) according to one of the claims 1 to 6, characterized in that the first support bearing (12) is accommodated on an intermediate wall (22) of the housing (2) which extends in the radial direction past the rotor (4) and/or a plurality of friction elements (15, 16) of at least one clutch (6, 7, 8).
8. The clutch device (1) according to claim 7, characterized in that a fluid supply of an actuating unit (23) actuating the first clutch (6) is provided at least partially in the intermediate wall (22).
9. Drive unit (30) for a drive train of a motor vehicle, having a clutch device (1) according to at least one of claims 1 to 8 and a transmission device (24), wherein at least one transmission input shaft (25 a; 25b) of the transmission device (24) is connected in a rotationally fixed manner to a clutch component (10b, 10c) of a clutch (6, 7) of the clutch device (1).
10. Drive unit (30) according to claim 9, characterized in that the transmission device (24) has a transmission housing which is firmly connected with the housing (2) of the clutch device (1) and the at least one slave cylinder (11a, 11b) is accommodated on a region which is fixed to the transmission housing.
Technical Field
The invention relates to a clutch device (also referred to as hybrid module) for a drive train of a motor vehicle, such as a passenger car, a truck, a bus or another commercial vehicle, having: a housing; a carrier rotatably supported relative to the housing; an electric motor which is received/mounted on the carrier in a rotationally fixed manner by means of its rotor; a plurality of clutches, wherein each clutch is also received/mounted on the carrier in a rotationally fixed manner by means of a clutch component; and at least one slave cylinder which acts in an actuating manner on one of the clutches, wherein a first (radial) support bearing which also forms the bearing of the carrier is arranged/inserted directly between the carrier and the housing. The invention further relates to a drive unit for a drive train of a motor vehicle, having such a clutch device.
Background
Such clutch devices are sufficiently known from the prior art. In this respect, for example, WO 2017/008806a1 discloses a hybrid module for a drive train and the installation of the hybrid module.
Different hybrid modules are known from the prior art, which are already designed as triple clutches, the carrier of which is supported on the housing. However, what has proven to be disadvantageous from the previous embodiments is: the bearing point on the carrier side is usually positioned such that the housing is formed rigidly, so that the rotor of the electric machine changes its radial position in some operating states. This results in that the air gap of the electrical machine, i.e. the air gap between the rotor and the stator of the electrical machine, can be influenced. Thereby also adversely affecting the drive power of the motor.
Disclosure of Invention
The object of the present invention is therefore to eliminate the disadvantages known from the prior art and in particular to provide a clutch device which ensures as firm a support of the rotor as possible during the entire operation.
This is achieved according to the invention in that the carrier is equipped with a further second (radial) support bearing which is arranged spaced apart from the first support bearing along the axis of rotation of the carrier, i.e. in the axial direction of the carrier.
The carrier and the rotor coupled thereto are thereby supported radially in operation via the two support bearings in a substantially more stable manner. The rotor therefore has a significantly smaller tendency to change its distance from the stator of the electric machine during operation.
Further advantageous embodiments are claimed by the dependent claims and are set forth in detail below.
The carrier and the rotor are also more firmly supported if a first support bearing is arranged in the vicinity of the friction elements of one of the clutches towards a first axial side and a second support bearing is arranged in the vicinity of the friction elements of the clutch towards a second axial side facing away from the first axial side.
The first support bearing is designed purely as a radial bearing or more preferably as an axial and radial bearing. The second support bearing is also designed purely as a radial bearing or more preferably as an axial and radial bearing.
The first support bearing and/or the second support bearing are expediently designed as ball bearings (more preferably as deep groove ball bearings).
It is also advantageous if the second support bearing is inserted between the carrier and the actuator housing of the at least one slave cylinder. The second support bearing is integrated into the actuator housing, thereby further saving axial installation space.
In this respect, it is also advantageous if the second support bearing is (directly) inserted between the carrier and the radially outer side of the actuator housing. This makes it relatively simple to accommodate the second support bearing on the actuator housing.
It is also expedient for the actuator housing to have two slave cylinders, wherein the two fluid chambers of the slave cylinders, which are each delimited by the housing region and the piston, are arranged radially one behind the other, i.e. radially offset from one another (preferably coaxially with one another). This makes it possible to provide a particularly flexible actuation of the two clutches.
It is also advantageous if the second support bearing is arranged in the axial direction at least partially overlapping/covering (i.e. at the same axial level) with the fluid chamber of the at least one slave cylinder. This further reduces the axial installation space requirement.
A compact design of the housing is achieved if the first support bearing is accommodated on an intermediate wall of the housing, which intermediate wall extends in the radial direction past the rotor and/or the friction elements of the at least one clutch or the clutches.
In this connection, it is also advantageous if a fluid supply for actuating the actuating unit of the first clutch is provided at least partially in the intermediate wall.
The invention further relates to a drive unit for a drive train of a motor vehicle, having a clutch device according to at least one of the above-described embodiments of the invention and having a transmission device, wherein at least one transmission input shaft of the transmission device is connected in a rotationally fixed manner to a clutch component of a clutch of the clutch device.
In this respect, it is also advantageous for the mounting if the transmission device has a transmission housing which is firmly connected to the housing of the clutch device and the at least one slave cylinder is accommodated on a region which is fixed to the transmission housing.
The actuator housing is advantageously arranged on a region fixed to the transmission housing directly or (indirectly) via a connecting element, such as an intermediate plate.
In other words, a triple clutch (three clutches) is thus realized according to the invention, which has an additional bearing on the transmission side. The clutch device used as a hybrid module has, in particular, a rotor and a triple clutch, which is supported on both (axial) sides thereof. The first bearing (first support bearing) is arranged toward the side (in the axial direction) that can be connected to the internal combustion engine, and the second bearing (second support bearing) is arranged toward the side (in the axial direction) that can be connected to the transmission. The second bearing is supported radially by the double slave cylinders for actuating the two sub-clutches (second and third clutches) of the double clutch.
Drawings
The invention is explained in detail below with reference to the drawings.
The sole figure 1 shows a longitudinal section through a clutch device according to the invention.
The drawings are merely schematic and are provided for understanding the present invention.
Detailed Description
The construction of the clutch device 1 according to the invention according to a preferred embodiment can be seen well in fig. 1. The clutch device 1 is part of a
The clutch device 1 has a total of three
An
In the
Furthermore, the
A further
According to the invention, a second support bearing 14 is provided on the
The
Accordingly, the first
The third clutch 8 is constructed corresponding to the
The
As can be seen with regard to the positioning of the two
For actuating the
For actuating the
As can be seen in fig. 1, the second support bearing 14 is arranged, viewed in the radial direction, between the
The second support bearing 14 is accommodated on the
Furthermore, the
In other words, the two bearing points are thus integrated by the first support bearing 12 and the second support bearing 14 for the rotor 4. The second bearing section (second support bearing 14) of the rotor 4 is therefore also integrated on the transmission side. The
The hybrid module (clutch device 1) is characterized in particular in that the rotor 4/
List of reference numerals
1 Clutch device
2 casing
3 bearing part
4 rotor
5 electric machine
6 first clutch
7 second clutch
8 third clutch
9a first clutch component of the first clutch
9b first clutch component of the second clutch
9c first clutch component of third clutch
10a second clutch component of the first clutch
10b second clutch component of the second clutch
10c second clutch component of third clutch
11a first slave cylinder
11b second slave cylinder
11c third slave cylinder
12 first support bearing
13 axis of rotation
14 second support bearing
15 first friction element
16 second friction element
17 actuator housing
18 radially outside
19a first housing area
19b second housing area
19c third housing area
20a first piston
20b second piston
20c third piston
21a first fluid chamber
21b second fluid chamber
21c third fluid chamber
22 intermediate wall
23 operating unit
24 Transmission arrangement
25a first transmission input shaft
25b second transmission input shaft
26 middle plate
27 input unit
28 inner cavity
29 load bearing area
30 drive unit
31 first support section
32 load-bearing section
33 receiving section
34 stator
35 second support section
36a first friction element carrier
36b second friction element carrier
37 guide channel
38 first bearing ring
39 second bearing ring
40 bearing area
41 projection
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