CN112303141B - Clutch cover assembly and clutch - Google Patents
Clutch cover assembly and clutch Download PDFInfo
- Publication number
- CN112303141B CN112303141B CN201910700432.6A CN201910700432A CN112303141B CN 112303141 B CN112303141 B CN 112303141B CN 201910700432 A CN201910700432 A CN 201910700432A CN 112303141 B CN112303141 B CN 112303141B
- Authority
- CN
- China
- Prior art keywords
- clutch cover
- cover assembly
- clutch
- transmission
- pressure plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 70
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a clutch cover assembly and a clutch. The clutch cover assembly includes: a clutch cover (1) which can rotate in a defined rotational direction when the motor vehicle is driven by the drive device; a pressure plate (2) which is arranged coaxially with the clutch cover and can rotate together with the clutch cover; a spring element, which is located between the clutch cover and the pressure plate, by means of which the pressure plate can be moved axially relative to the clutch cover; a first transmission plate (3) arranged in a tangential direction, the first transmission plate being fixed to the clutch cover at a front end in the rotational direction and to the pressure plate at a rear end in the rotational direction; a second transmission plate (4) arranged in the tangential direction, the second transmission plate being fixed to the pressure plate at a front end in the rotational direction and to the clutch cover at a rear end in the rotational direction; the first and second transmission plates are arranged offset from each other in the radial direction. The clutch comprises the clutch cover assembly.
Description
Technical Field
The invention relates to the technical field of clutches. The present invention relates in particular to a clutch cover assembly and a clutch comprising the same.
Background
In friction clutches for motor vehicles, a clutch cover, a pressure plate, and a main spring element are generally included. The clutch cover has an axis and is fixable to a drive disk rotatable in a predetermined rotational direction. The pressure plate is connected to the clutch cover and rotates about a common axis with the pressure plate, and the pressure plate is also capable of limited axial movement relative to the clutch cover. The main spring element is supported axially on the clutch cover at one end and bears against the pressure plate at the other end in order to be able to push the pressure plate into movement toward the clutch plate. The clutch cover and the pressure plate are connected by a plurality of connecting webs, which are embodied as leaf spring assemblies, and torque is transmitted by means of the connecting webs. The webs are generally arranged such that they are substantially tangential in their longitudinal direction to a common axis relative to the clutch cover and the pressure plate. In general, in a design of the friction clutch of the type described above, the front ends of all the connecting plates in the rotational direction are fixed to the clutch cover, and the rear ends of all the connecting plates in the rotational direction are fixed to the pressure plate. This corresponds to the common sense that the motor vehicle is driven by a driving device, e.g. an internal combustion engine, under normal conditions and that the leaf spring assembly should be stretched under normal operating conditions.
The connecting piece, which is designed as a leaf spring, is known to have a large number of embodiments. For example, DE 10 2017 108 239 A1 discloses a clutch for a motor vehicle, which comprises a pressure plate and a clutch cover, to which leaf spring parts are each fastened, wherein the leaf spring parts are connected on one side by rivets, and the leaf spring parts have support sections which can surround the pressure plate or the clutch cover by their edges matching the pressure plate or the clutch cover in order to maintain the holding of the rivets. A torque transmission device is also known, for example, from DE 10 2008 061 588 B4, which comprises two parts that are connected by means of a web designed as a leaf spring, wherein the web has a through-hole at each end through which a connecting piece passes and a disk-spring-type adjustment region surrounding the through-hole.
However, when the friction clutch is in operation, the plate spring may be damaged by an impact due to resonance and/or impact, for example, buckling or kinking of the plate spring due to insufficient bending strength or the like.
In the solutions currently existing, it is generally necessary to use leaf springs with a high safety factor depending on the maximum engine torque and impact torque. This may in some cases lead to a considerable loss of leaf springs and/or clutches in terms of other characteristics.
Disclosure of Invention
The object of the present invention is therefore to provide a clutch or a clutch cover assembly which has a good overall performance, in particular an improved impact resistance.
The above technical problems are solved by a clutch cover assembly. The clutch cover assembly is used for a motor vehicle with a driving device. The clutch cover assembly mainly includes: the clutch cover is rotatable in a defined rotational direction when the motor vehicle is driven by the drive device, the pressure plate is arranged coaxially to the clutch cover and is rotatable jointly with the clutch cover, and a spring element is arranged between the clutch cover and the pressure plate, which is held, for example, in the clutch cover and can be moved axially relative to the clutch cover by means of the spring element.
According to an aspect of the present invention, the clutch cover assembly further includes a first transmission plate disposed substantially tangentially, wherein the first transmission plate is fixed to the clutch cover at a front end in the rotational direction and is fixed to the pressure plate at a rear end in the rotational direction, and a second transmission plate disposed substantially tangentially, wherein the second transmission plate is fixed to the pressure plate at a front end in the rotational direction and is fixed to the clutch cover at a rear end in the rotational direction, and wherein the first transmission plate and the second transmission plate are disposed offset from each other in a radial direction.
The clutch cover can be driven by a drive device of the motor vehicle. The drive device may be an internal combustion engine and/or an electric motor. For example, the clutch cover may be connected to a mass flywheel driven by the internal combustion engine. For another example, the clutch cover may be connected to a member driven by the motor. Based on the position of the clutch cover in the drive train of the motor vehicle and the connection, it is possible to determine that the clutch cover rotates in a defined rotational direction when the motor vehicle is driven by the drive device.
The spring element preferably bears against the pressure plate at one end and against the clutch cover at the other end as a main element for effecting an axial displacement of the pressure plate relative to the clutch cover, so that an actuating lever is formed. By the co-action of the spring element with an actuator in the clutch system, the pressure plate can be switched axially between an engaged position pressing against the clutch disk and a disengaged position separating from the clutch disk, so that the engagement and disengagement of the clutch is effected.
The transmission plate can be designed as a leaf spring. In particular, the transmission plate may be a single leaf spring, or the transmission plate may be a leaf spring assembly formed by at least two single leaf springs arranged one above the other. As a result of the elasticity of the drive plate, in particular in the axial direction after assembly, it is ensured that torque can always be transmitted between the clutch cover and the pressure plate. In addition, the transmission plate can also serve as an auxiliary element for the axial displacement of the pressure plate.
In one embodiment of the invention, two types of transmission plates, namely a first transmission plate and a second transmission plate, which are arranged offset from one another in the radial direction, are provided in the clutch cover assembly. Each driving plate has two ends in the respective longitudinal direction, namely a driving end connected to a driving member in the clutch cover and the pressure plate and a driven end connected to a driven member in the clutch cover and the pressure plate. When the transmission plate rotates along with the clutch cover and the pressure plate around the common axis, if the driving end of the transmission plate is positioned in front of the rotation direction and the driven end of the transmission plate is positioned behind the rotation direction, the transmission plate is in a stretching state; if the driving end of the driving plate is located behind the rotation direction and the driven end of the driving plate is located in front of the rotation direction, the driving plate is in a pressed state. By the above-described opposite arrangement of the first and second transmission plates, when the clutch cover and the pressure plate are rotated in either direction, one of the first and second transmission plates can always be in a stretched state and serve as a member for transmitting power mainly in the current rotation direction. Thus, by the coordinated action of the two types of drive plates, each drive plate is not prone to buckling or kinking even under resonance and/or shock conditions. Thus, no special elements are required to prevent the connecting piece from buckling or kinking when designing the clutch, resulting in loss of other functions of the clutch.
In a preferred embodiment, the clutch cover assembly comprises two or more first transmission plates and two or more second transmission plates, wherein the first transmission plates are evenly distributed in the circumferential direction and the second transmission plates are evenly distributed in the circumferential direction. This allows torque to be transmitted between the clutch cover and the pressure plate stably and uniformly. The transmission plate can also be used here as a centering element for the pressure plate.
In a preferred embodiment, the first transmission plate is arranged radially outside the clutch cover assembly and the second transmission plate is arranged radially inside the clutch cover assembly. In this case, if the motor vehicle is driven by the drive device, the radially outer first connecting piece is in the desired stretched state. In the case of a normal driving situation of the motor vehicle, this design is advantageous in terms of the transmission efficiency and also in terms of the service life of the components, in particular of the fastening elements of the first connecting piece and the connecting piece.
In an alternative embodiment, the first transmission plate is arranged radially inward of the clutch cover assembly and the second transmission plate is arranged radially outward of the clutch cover assembly.
In an advantageous embodiment, the transmission plate arranged radially outward is connected, for example riveted, to the clutch cover and the pressure plate, respectively, so that a simple and reliable holding is achieved.
In an advantageous embodiment, the transmission plates arranged radially inwards are each connected to the clutch cover by means of bolts or pins, so that a simple and reliable holding is achieved.
The spring element is advantageously fastened to the clutch cover by means of a screw or pin. The spring element and the transmission plate arranged radially inside can thereby be fastened to the clutch cover by means of a common fastening element, so that a space-saving fastening of the transmission plate can be achieved with existing structures for fastening the spring element.
In this case, the pressure plate is advantageously provided with a radially inwardly extending lug portion, and the radially inner transmission disk is connected, for example riveted, to the respective lug portion. The radially inner transmission plate can thereby be arranged in the radially inner space of the pressure plate and the clutch cover, so that the axial dimension of the clutch cover assembly is not increased.
In a preferred embodiment, the spring element is configured as a diaphragm spring.
The above technical problem is also solved by a clutch comprising the above clutch cover assembly. Here, the clutch can be used as a dry clutch, for example. The clutch can be designed, for example, as one or both of the double clutches.
In summary, by the opposite arrangement of the first driving piece and the second driving piece, the driving piece is not easy to buckle or kink even under resonance and/or impact conditions, and meanwhile, due to the opposite arrangement of the first driving piece and the second driving piece, when the first driving piece/the second driving piece is subjected to severe impact, the second driving piece/the first driving piece which are oppositely arranged can play a certain role in protection, so that the impact resistance of the clutch is enhanced. Thus, no special elements are required to prevent the connecting piece from buckling or kinking when designing the clutch, resulting in loss of other functions of the clutch. In addition, due to the radially spaced arrangement of the first and second transmission plates, the space of the pressure plate and the clutch cover on the radially inner side can be fully utilized, and the clutch, in particular the clutch cover assembly, can be kept small in axial dimension.
Drawings
Preferred embodiments of the present invention are schematically illustrated below with reference to the accompanying drawings. The attached drawings are as follows:
Figure 1 is a front view of a clutch cover assembly according to a preferred embodiment of the present invention,
Fig. 2 is a partial perspective view of the clutch cover assembly according to fig. 1.
Detailed Description
Fig. 1 and 2 show a front view and a partial perspective view, respectively, of a clutch cover assembly according to a preferred embodiment of the present invention. The clutch cover assembly is an integral part of a clutch for a motor vehicle. The clutch cover assembly mainly comprises a coaxially arranged clutch cover 1, a pressure plate 2 and a spring element (not shown) between the clutch cover 1 and the pressure plate 2.
In the present embodiment, when the motor vehicle is driven by a driving device such as an internal combustion engine, the clutch cover 1 drives the pressure plate 2 to rotate together, for example, in the direction indicated by the arrow in fig. 1.
The pressure plate 2 can be moved axially relative to the clutch cover 1 by means of a spring element, not shown, and a clutch actuator, also not shown, in order to engage and disengage the clutch.
The spring element can be designed as a conventional diaphragm spring, which comprises, for example, an annular section and a separating finger extending from the annular section substantially radially toward the inside. The radially outer end of the diaphragm spring, i.e. the outer circumferential part of the annular section, is against the pressure plate 2, the radially inner end of the diaphragm spring, i.e. the finger ends of the separating fingers, being actuatable by the clutch actuator, the diaphragm spring being held in its annular section on the clutch cover 1, for example by means of bolts 7, so that the diaphragm spring forms an actuating lever which is able to actuate the pressure plate 2. At the fulcrum of the diaphragm spring, i.e. at the bolt 7, support rings may be provided on both axial sides of the diaphragm spring.
As shown in fig. 1, the clutch cover assembly further includes two sets of tangentially arranged drive plates, namely a first set of drive plates and a second set of drive plates. In the present embodiment, the first drive belt group includes three first drive belts 3 that are uniformly arranged in the circumferential direction, and the second drive belt group also includes three second drive belts 4 that are uniformly arranged in the circumferential direction.
As can be seen in connection with fig. 1 and 2, each first transmission plate 3 is fixed to the clutch cover 1 by caulking at the front end in the rotational direction as indicated by the arrow. Each first transmission plate 3 is fixed to the platen 2 by caulking at the rear end in the rotational direction as indicated by an arrow. As shown in fig. 2 in particular, each second transmission plate 4 is fixed at its front end in the rotational direction, indicated by the arrow, to a radially inwardly extending lug portion 5 of the pressure plate 2 by riveting. Each second transmission plate 4 is fixed to the clutch cover 1 at the rear end in the rotational direction as indicated by the arrow by the aforementioned bolt 7 for holding the diaphragm spring. Thereby, all the second transmission plates 4 are arranged radially inside the clutch cover 1 and the pressure plate 2, and the clutch cover assembly can be kept small in axial dimension. By the opposite arrangement mode of the first transmission sheet 3 and the second transmission sheet 4, the transmission sheets can cooperatively resist resonance and/or impact, so that the transmission sheets are not easy to bend or kink, and the shock resistance of the clutch is integrally enhanced.
While possible embodiments are exemplarily described in the above description, it should be understood that there are numerous variations of the embodiments still through all known and furthermore easily conceivable combinations of technical features and embodiments by the skilled person. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. The technical teaching for converting at least one exemplary embodiment is provided more in the foregoing description to the skilled person, wherein various changes may be made without departing from the scope of the claims, in particular with regard to the function and structure of the components.
List of reference numerals
1. Clutch cover
2. Pressure plate
3. First transmission piece
4. Second transmission piece
5. Lug part of pressure plate
6. Rivet
7. Bolt
8. Rivet
Claims (10)
1. A clutch cover assembly for a motor vehicle having a drive apparatus, the clutch cover assembly comprising:
-a clutch cover (1) rotatable in a determined rotational direction when the motor vehicle is driven by the drive device to travel;
-a pressure plate (2) arranged coaxially with the clutch cover (1) and co-rotatable with the clutch cover (1);
-a spring element located between the clutch cover (1) and the pressure plate (2), wherein the pressure plate (2) is axially movable relative to the clutch cover (1) by means of the spring element;
Characterized in that the clutch cover assembly further comprises:
A first transmission plate (3) arranged in a tangential direction, the first transmission plate (3) being fixed to the clutch cover (1) at a front end in the rotational direction and to the pressure plate (2) at a rear end in the rotational direction;
a second transmission plate (4) arranged in a tangential direction, the second transmission plate (4) being fixed to the pressure plate (2) at a front end in the rotational direction and to the clutch cover (1) at a rear end in the rotational direction;
Wherein the first transmission plate (3) and the second transmission plate (4) are arranged offset from each other in the radial direction.
2. A clutch cover assembly according to claim 1, characterized in that the clutch cover assembly comprises two or more first transmission plates (3) and comprises two or more second transmission plates (4), wherein the first transmission plates (3) are evenly distributed in the circumferential direction and the second transmission plates (4) are evenly distributed in the circumferential direction.
3. A clutch cover assembly according to claim 1, characterized in that the first transmission plate (3) is arranged radially outside the clutch cover assembly and the second transmission plate (4) is arranged radially inside the clutch cover assembly.
4. The clutch cover assembly of claim 1, wherein the first transmission plate is disposed radially inward of the clutch cover assembly and the second transmission plate is disposed radially outward of the clutch cover assembly.
5. A clutch cover assembly according to claim 3 or 4, characterized in that the transmission plates arranged radially outside are connected to the clutch cover (1) and the pressure plate (2), respectively.
6. A clutch cover assembly according to claim 3 or 4, characterized in that the transmission plate arranged on the radially inner side is connected to the clutch cover (1) by means of bolts (7) or pins, respectively.
7. Clutch cover assembly according to claim 6, characterized in that the spring element is fixed to the clutch cover (1) by means of the bolt (7) or the pin.
8. A clutch cover assembly according to claim 3 or 4, characterised in that the pressure plate (2) is configured with lug portions (5) extending towards the radially inner side, the transmission plates arranged at the radially inner side being connected with the respective lug portions (5).
9. The clutch cover assembly of claim 1, wherein the spring element is configured as a diaphragm spring.
10. A clutch, characterized in that it comprises a clutch cover assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700432.6A CN112303141B (en) | 2019-07-31 | 2019-07-31 | Clutch cover assembly and clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700432.6A CN112303141B (en) | 2019-07-31 | 2019-07-31 | Clutch cover assembly and clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112303141A CN112303141A (en) | 2021-02-02 |
| CN112303141B true CN112303141B (en) | 2024-09-27 |
Family
ID=74486079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910700432.6A Active CN112303141B (en) | 2019-07-31 | 2019-07-31 | Clutch cover assembly and clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303141B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930119A (en) * | 2014-03-18 | 2015-09-23 | 舍弗勒技术股份两合公司 | Flywheel, clutch, and flywheel clutch assembly |
| DE102017126799A1 (en) * | 2017-11-15 | 2019-05-16 | Schaeffler Technologies AG & Co. KG | Self-energizing friction clutch with leaf springs |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES269403A1 (en) * | 1960-08-02 | 1961-11-16 | Franaaise Du Ferodo Sa | Improvements in or relating to friction clutches |
| DE2148256C3 (en) * | 1970-10-04 | 1973-11-08 | Aisin Seiki K.K., Kariya, Aichi (Japan) | Disc friction clutch |
| CN100378360C (en) * | 1999-05-31 | 2008-04-02 | 卢克摩擦片和离合器有限公司 | Friction clutch |
| DE602005011231D1 (en) * | 2004-11-12 | 2009-01-08 | Aisin Seiki | Kupplungsnachstellvorrichtung |
| US10024368B2 (en) * | 2014-03-27 | 2018-07-17 | Schaeffler Technologies AG & Co. KG | Multi-disk clutch |
| CN204755643U (en) * | 2015-03-25 | 2015-11-11 | 湖北三环离合器有限公司 | Clutch case and pressure disk assembly |
| CN206682182U (en) * | 2017-04-17 | 2017-11-28 | 广东亚新汽车传动有限公司 | A kind of beading formula clutch case |
| DE102017119106A1 (en) * | 2017-08-22 | 2019-02-28 | Schaeffler Technologies AG & Co. KG | Friction clutch for a motor vehicle |
| CN208153575U (en) * | 2018-04-18 | 2018-11-27 | 浙江奥德华汽配有限公司 | A kind of clutch compressing disc and cap assembly |
-
2019
- 2019-07-31 CN CN201910700432.6A patent/CN112303141B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930119A (en) * | 2014-03-18 | 2015-09-23 | 舍弗勒技术股份两合公司 | Flywheel, clutch, and flywheel clutch assembly |
| DE102017126799A1 (en) * | 2017-11-15 | 2019-05-16 | Schaeffler Technologies AG & Co. KG | Self-energizing friction clutch with leaf springs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112303141A (en) | 2021-02-02 |
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