CN109027031A - Clutch mechanism for motor vehicles - Google Patents

Abstract

The present invention relates to a kind of clutch mechanism (1), comprising: lid (2)；Pressing plate (14)；And the diaphragm (25) being axially mounted between the radial component (3) and the pressing plate (14) of the lid (2), the diaphragm (25) be supported on the pressing plate (14) and the lid (2) on, it is characterized in that, the clutch mechanism includes with the lid (2) circumferential clasp (37) that axial direction is supported on the diaphragm (25) on the contrary and for axially retaining the snap ring (37, retainer member 37A) being supported on the diaphragm (25), the retainer member is fixed relative to the lid (2) and is located at the radially inner side of the radial outer periphery (31) of the diaphragm (25).

Description

Clutch mechanism for motor vehicles

Technical field

The present invention relates to a kind of clutch mechanisms for motor vehicles, are used to assemble clutch apparatus.

Background technique

Clutch apparatus is generally included for rotating the reaction plate coupled with the crankshaft of vehicle motor, for being connected to The frictional disk and pressing plate of the input shaft of gearbox.The movement of pressing plate is controlled by diaphragm, and diaphragm itself is by clutch stop part control System.

Therefore pressing plate can move between bonding station and disengaged position, be clipped in the pressing plate in bonding station middle friction tray Between reaction plate, in disengaged position, frictional disk is released.

Damping device is typically mounted between frictional disk and the input shaft of gearbox, damping device resist frictional disk relative to The rotation of the input shaft of gearbox.

In the case where hybrid power motorized vehicles, thermal energy source (Thermal Motor) and source of electrical energy (electric notor) one It rises and uses.When talking about hybrid vehicle what is involved is combine both energy rechargeable hybrid vehicle, It can be recharged on electrical network, and compared with conventional hybrid automobile, this allows to possess bigger autonomy.It is rechargeable The hybrid vehicle of electricity can be PHEV (English Plugin-Hybrid Electric Vehicle (plug-in hybrid Electric vehicle) acronym) type.In this configuration, electric notor and Thermal Motor collective effect are to actuate vehicle. The use of electric model depends on the configuration of vehicle.For such vehicle, the use using specific heat force mode of electric model More frequently.As a result, the clutch that Thermal Motor is connected to gearbox is mostly in separation or open position.In this feelings Under condition, it is preferred to use normally open clutch, so that diaphragm is only activated for being closed clutch, i.e., for connecing clutch It closes.

In low speed, vehicle can be actuated only by means of electric notor, or when big torque should be provided, only by In Thermal Motor or by means of electric notor and Thermal Motor.

In operation, electric notor can be used for starting or restarting Thermal Motor.For this purpose, clutch apparatus is closed, with Just the torque of electric notor is passed into Thermal Motor.When the detonation of the starting of Thermal Motor occurs, then can beat again Declutch device, the speed of Thermal Motor, which is gradually increased until, reaches such as 3000 to 7000 rpms of synchronous speed Degree.Once reaching synchronizing speed, electric notor and Thermal Motor can be linked together again, so as to consistently work and because This provides big torque.

In order to improve the comfort level of user and reduce the energy consumption of vehicle, it may be preferred to start or restart Synchronizing speed is rapidly achieved after Thermal Motor.

For this purpose, a solution is to reduce the inertia of device by reducing the radial dimension of such as device.

More generally, the present invention is suitable for other kinds of motorization, especially only by means of the motor-driven of Thermal Motor Change, seeks the radial dimension for reducing clutch mechanism or device thus.

Present invention seek to address that these technical problems.

Summary of the invention

For this purpose, the clutch mechanism includes: lid the invention proposes a kind of clutch mechanism；Pressing plate；Be axially mounted to Diaphragm between the radial component and pressing plate of lid, diaphragm support is on pressing plate and covers, which is characterized in that the clutch mechanism packet It includes and covers the axial circumferential clasp being supported on diaphragm and the retainer being supported on diaphragm for axially retaining snap ring on the contrary Part, the retainer member is fixed relative to lid and is located at the radially inner side of the radial outer periphery of diaphragm.

Retainer member, which allows to be effectively held in diaphragm by circumferential clasp, to be covered.This structure allows limiting mechanism Radial dimension and inertia.In fact, circumferential clasp and retainer member are located at the radially inner side of the radial outer periphery of diaphragm, retainer Part can then pass through diaphragm.

The support region for supporting diaphragm covered can be relative to the support region for being used to support diaphragm on pressing plate Positioned at radial outside.

This structure belongs to open type.In other words, in position of rest, i.e., do not passing through clutch stop part on diaphragm When applying any power, pressing plate is pushed on the direction towards lid, axial opposed with reaction plate and frictional disk.

Circumferential clasp and retainer member can be located at the axial opposite or attached of the support region for supporting diaphragm covered Closely.

Diaphragm in operation is hinged around the support region.This positioning allows to limit diaphragm and another party of one side Friction between the circumferential clasp or retainer member in face.Therefore this improves the operation of mechanism, while avoiding its premature abrasion.

Diaphragm may include the limb in its radial outer periphery, and limb is open recessed by the radial outer periphery in diaphragm Mouth defines, and retainer member extends axially through at least one of described recess.

Each recess can have T-shaped global shape, and including diameter open at the radial outer periphery of diaphragm To extension and the part extended perpendicular to the radial component, retainer member is at least contained in the radial component of corresponding recess In.

This limb is especially from known to the applicant patent application FR2984434 under one's name.

Retainer member may include at least one rivet, which includes axial component, axial component tool There is the first end fixed to lid and form the second end of enlarged head, snap ring is axially supported on the head.

Snap ring can be supported on the radial inner portion of enlarged head and the axial component of rivet.

Snap ring may include that the U-shaped connected by arc-shaped region or the fixed area of Ω shape, each fixed area are supported on In the enlarged head of corresponding rivet.

Arc-shaped region can extend in the first sagittal plane, and U-shaped or Ω shape region can be in the second sagittal planes Extend, the first and second sagittal planes are axially relative to one another offset.

Each fixed area can be at least partially situated at the radial outside of the cylindrical part of rivet.

Each fixed area, which may be adapted to radially outwardly be supported on, to be covered.

Each fixed area can be radially plugged between the cylindrical part of rivet and lid.

Retainer member may include that at least one extended from lid keeps lug.

Keep lug that can be integrally formed with lid.

It can be obtained by the region of flype and keep lug.

Snap ring can be by axially retaining rivet or by keeping lug to center.

Keeping lug may include first part and second part, and the first part is axially extending and extends axially through diaphragm, Radially from first part, snap ring axially supports on the second portion the second part.

Second part can extend radially outwardly from first part.

Pressing plate may include the supporting surface that at least one is radially extended, and retainer member is suitble to axially prop up in disengaged position It holds in the supporting surface.

Therefore, pressing plate removes during retainer member and supporting surface allow to limit operation.

Lid may include the annular section radially extended and the axially extending annular of radial outer periphery from the annular section Part.

The radial component of lid may include at least one annular arch area.

Arch area can have frusto-conical.

Arch area allows to increase the rigidity covered.

The radial component of lid may include at least two annular arch areas.

At the radially inner periphery for the radial component that first arch area can be located at lid, the second arch area can be located at diameter Into the radial intermediate region of part.Which thus increases the rigidity of the lid in the controlled area of lid, especially for being subjected to In the region of high mechanical stress.

The quantity of retainer member is at least three, such as quantity is six.

Retainer member is regularly distributed on circumference.

The invention further relates to a kind of clutch apparatus for motor vehicles, which includes: to be used for and crankshaft The reaction plate for rotating connection, for being connected to the frictional disk of the input shaft of gearbox and the clutch mechanism of the above-mentioned type, Pressing plate is activated to clamp or discharge the frictional disk on reaction plate by diaphragm.

Damping device may be mounted between frictional disk and the input shaft of gearbox, and damping device is for resisting frictional disk phase Rotation for the input shaft of gearbox.

It is of course also possible, as described before, the present invention is not limited to hybrid power motorized vehicles.

Clutch apparatus is, for example, double clutch.

Detailed description of the invention

Being described below of providing by way of non-limiting example is read by referring to accompanying drawing, it will more fully understands this hair Bright and of the invention other details, feature and advantage will become apparent from, in the accompanying drawings:

Fig. 1 to 7 shows clutch mechanism according to first embodiment, specifically:

Fig. 1 is the exploded perspective view of clutch mechanism；

Fig. 2 is the side exploded view of clutch mechanism；

Fig. 3 is the perspective view of clutch mechanism；

Fig. 4 is the axial sectional view of clutch mechanism；

Fig. 5 is the detail view of Fig. 4；

Fig. 6 is the detail view of Fig. 4；

Fig. 7 is the perspective view of diaphragm；

Fig. 8 to 11 shows the clutch mechanism according to second embodiment, specifically:

Fig. 8 is the exploded perspective view of clutch mechanism；

Fig. 9 is the perspective view of circumferential clasp；

Figure 10 is the axial sectional view of the mechanism；

Figure 11 is the detail view of Figure 10；

Figure 12 to 14 shows clutch mechanism according to first embodiment, specifically:

Figure 12 is the exploded perspective view of clutch mechanism；

Figure 13 is the axial sectional view of the mechanism；

Figure 14 is the detail view of Figure 13.

Specific embodiment

Fig. 1 to Fig. 7 shows the clutch mechanism 1 for motor vehicles of first embodiment according to the present invention.

Mechanism 1 includes lid 2, and lid 2 includes the annular section 3 with axis X radially extended and the radial direction from radial component 3 The axially extending cylindrical part 4 in outer periphery.

Radial component 3 includes the first arch portion 5 or annular frustum of a cone at the radially inner periphery 6 of radial component 3 Shape part, and the second arch portion 7 or annular frusto-conical part at the radial intermediate region 8 of radial component 3.

The radial component 3 of lid includes the hole 9 with circular cross-section of circumferentially regular distribution.The quantity in hole 9 is, for example, Six, and be located at the radial outer periphery of radial periphery.

As known per se, radial component 3 further includes towards the internal capacity portion of lid 2 support region 10 outstanding. Support region 10 is for example obtained by punching press.

Cylindrical part 4 includes axially extending opening 11.Annular flange 12 is from cylindrical part 4 and radial component 3 Opposite axial end portion is radially.Annular flange 12 especially includes consolidating lid 2 for being for example connected through a screw thread or riveting The fixation hole 13 being scheduled on reaction plate.

Mechanism 1 further includes the annular pressing plate 14 being mounted in lid 2.Pressing plate 14 includes the first sagittal plane being orientated towards lid 2 15 and second sagittal plane 16 opposite with the first face.Second face 16 is for being supported on frictional disk.

Pressing plate 14 includes the lug 17 radially extended from the radial outer periphery of pressing plate.Tongue 18 allows the pressing plate of one side 14 and another aspect reaction plate and lid 2 rotatably couple.The tongue 18 is elastically deformable and allows to make pressure plare 14 reset towards position of rest (being disengaged position here).

Therefore, each tongue 18 includes the first end that the lug 17 of pressing plate 14 is for example fixed to by rivet 19, and Such as by rivet 20 be fixed to lid 2 flange and/or fixed to the second end of reaction plate.

It is formed in from the radially inner periphery 22 of pressing plate from the ring-shaped bearing region 21 outstanding of the first face 16 of pressure plare 14.Rule The radial slot 23 being then distributed circumferentially is formed in support region.

The counter sink 24 with circular cross-section is formed in the first face 15 of pressing plate 14, such as quantity is six.

Clutch mechanism 1 further includes diaphragm 25, which is mounted in lid 2 and is axially interposed in the radial part of lid Divide between 3 and pressing plate 14.

Diaphragm 25 includes annular section 26, can in a manner of Belleville washer flexible deformation, and refer to portion 27 from annular Part 26 extends radially inwardly.The radial inner end 28 in finger portion 27 is used for the bearing of clutch stop part.Slit 29 is in diaphragm 25 Finger portion 27 between radially extend, each slit 29 have base portion 30 or widened radially outer end.

The radial outer periphery 31 of annular section includes the recess 32 for the T-shaped global shape being circumferentially distributed.Each Recess includes the first branch 33 and the second branch 34, which is radially oriented and in the radial outer periphery of diaphragm 25 It is opened wide at 31, second branch 34 is perpendicular to the first branch 33.The opening 32 is defined between them positioned at the periphery of diaphragm Limb 35 at side 31.

25 one side of diaphragm is supported on the support region 10 of lid 2, is on the other hand supported on the support region of pressing plate 36. As most preferably seen in Fig. 4 to 6, the support region 10 for supporting diaphragm 25 on lid 2, which is located on pressing plate, is used for branch Hold the radial outside of the support region 36 of diaphragm 25.

Diaphragm 25 is remained supported on the support region 10 of lid by circumferential clasp 37 and rivet 38.Circumferential clasp 37 has been Loopful shape and have circular shape.Each rivet 38 is bonded in the hole 9 of lid 2 and is fixed to the lid 2.Each rivet 38 It further include for the axial enlarged head 39 for supporting circumferential clasp 37.

The support region 40 for supporting diaphragm on circumferential clasp 37, which is axially located on lid 2, to be used to support diaphragm 25 10 opposite of support region.Snap ring 37 is supported on diaphragm 25 at limb 35.

Each rivet 38 includes axial direction or cylindrical part 41, which has fixed to lid 2 and be bonded in hole 9 One in first end 42 and form the second end of enlarged head 39, snap ring 37 is axially supported on the head 39 On, especially on the radial inner portion 43 of enlarged head 39 and on the axial component 41 of rivet 38.

Therefore diaphragm 25 is remained supported on the support region 10 of lid 2 by snap ring 37 and rivet 38.

In operation, in diaphragm 25 by clutch stop part activating, diaphragm 25 verts around the support region 10 of lid 2 And promote pressing plate 14 axially displaced.In the embodiment shown in Fig. 1 to 7, clutch mechanism 1 is open type.Therefore, exist At position of rest, pressing plate 14 is reset to disengaged position on the direction towards the radial component 3 of lid 2 by resilient tongue 18, And diaphragm 25 is also reset to its disengaged position.When it is by clutch stop part activating, diaphragm 25 is towards reaction The direction of plate and the radial component 3 of lid 2 push pressing plate 14 on the contrary, and frictional disk is clipped between reaction plate and pressing plate 14.

It can be at least partially penetrated in the slot 23 of pressing plate 14 in the finger portion 27 of this activating, diaphragm 25.

In addition, the head 39 of rivet 38 can be supported in the bottom surface of counter sink 24 in separation or position of rest, with Limit the displacement of pressing plate 14 during the separation.

In addition, diaphragm 25 is not subjected to the work of clutch stop part before clutch mechanism 1 is mounted on gearbox With so that diaphragm is in so-called storage or transporting position, except its disengaged position.In storage location, diaphragm 25 are supported in the radially inner periphery 6 of the radial component 3 of lid 2, this allows to accurately control its position in mechanism 1.

During the installation of clutch mechanism 1, diaphragm 25 is prestressed and discharges from its bearing on lid 2.

Fig. 8 to Figure 11 shows second embodiment of the present invention, with described embodiment referring to Figure 1 to Figure 7 The difference is that snap ring 37A includes the fixed area 44 of U-shaped or Ω shape, connected by arc-shaped region 45, each fixation Region 44 is supported in the enlarged head 39 of corresponding rivet 38.

Arc-shaped region 45 extends in the first sagittal plane, and U-shaped or Ω shape region 44 extend in the second sagittal plane, First and second sagittal planes are axially relative to one another offset.

Each fixed area 44 is at least partially situated at the radial outside of the cylindrical part 41 of rivet 38, each fixed area Domain 44 is radially plugged between the cylindrical part 41 of rivet 38 and lid 2, keeps circumferential clasp 37A so as to radial.Particularly, The radial outer support 46 of each fixed area 44 of snap ring 37A is formed in the radial component 3 and/or axial part for being set to lid 2 Divide on the axially extending shoulder 47 in 4.

Figure 12 to Figure 14 shows third embodiment of the present invention, and referring to figs. 1 to real described in 7 and 8 to 11 Apply mode the difference is that, snap ring 37,37A are by means of prominent lug 48 rather than rivet 38 is axially retained.

Each lug 48 is from the extension of the radial component 3 of lid 2 and integral with the lid 2.Each lug 48 includes first Part 49 and second part 50, first part 49 axially extend and extend axially through the correspondence of diaphragm 25 between limb 35 T shape recess 32, second part 50 extends radially outwardly from first part.Snap ring 37 axially supports on second section 50.

It can be obtained by the region of flype 2 and keep lug 48.Therefore, during the installation of mechanism 1, diaphragm 25 and card Ring 37 is installed in lid 2, and then lug 48 is collapsed for remaining snap ring 37 into the appropriate location for being supported on diaphragm 25.

In each of above embodiment, the structure of mechanism 1 allows to reduce in uncomplicated and not expensive mode described The radial dimension of mechanism 1.

Claims (15)

1. a kind of clutch mechanism (1), comprising: lid (2)；Pressing plate (14)；With the radial component for being axially mounted to the lid (2) (3) diaphragm (25) between the pressing plate (14), the diaphragm (25) is supported on the pressing plate (14) and the lid (2) On, which is characterized in that the clutch mechanism includes the ring being axially supported on the contrary on the diaphragm (25) with the lid (2) Shape snap ring (37,37A) and the retainer member being supported on the diaphragm (25) for axially retaining the snap ring (37,37A), institute State radially inner side of the retainer member relative to the radial outer periphery (31) covered (2) fixation and be located at the diaphragm (25).

2. mechanism (1) according to claim 1, which is characterized in that be used to support the diaphragm (25) on the lid (2) Support region (10) be located at diameter for supporting the support region (36) of the diaphragm (25) relative on the pressing plate (14) Outward.

3. mechanism according to claim 1 or 2, which is characterized in that the circumferential clasp (37,37A) and the retainer Part be located at it is described lid (2) on for support the diaphragm (25) support region (10) axial opposite or near.

4. mechanism (1) according to any one of the preceding claims, which is characterized in that the diaphragm (25) is included in its diameter Limb (35) on outer periphery (31), the limb is by radial outer periphery (31) open recess in the diaphragm (25) It defines, the retainer member extends axially through at least one of described recess.

5. mechanism (1) according to claim 4, which is characterized in that each recess has the global shape (32) of T shape, and And it is included at the radial outer periphery (31) of the diaphragm (25) open radially extending portion and perpendicular to the radial component The part of extension, the retainer member are at least contained in the radial component of corresponding recess.

6. according to claim 1 to mechanism (1) described in one in 5, which is characterized in that the retainer member includes at least one A rivet (38), at least one described rivet includes axial component, which has the first end for being fixed to the lid (2) Portion (42) and the second end for forming enlarged head (39), the snap ring (37,37A) are axially supported on the head (39).

7. mechanism (1) according to claim 6, which is characterized in that the snap ring (37) is supported on enlarged head (39) On radial inner portion and on the axial component (41) of the rivet (38).

8. mechanism (1) according to claim 6, which is characterized in that the snap ring (37A) includes by arc-shaped region (45) The U-shaped of connection or the fixed area (44) of Ω shape, each fixed area (44) are supported on the enlarged head of corresponding rivet (38) (39) on.

9. mechanism (1) according to claim 8, which is characterized in that each fixed area (44) is at least partially situated at institute State the radial outside of the cylindrical part (41) of rivet (38).

10. mechanism according to claim 9, which is characterized in that each fixed area (44) is suitable for radially outwardly supporting On the lid (2).

11. according to claim 1 to mechanism (1) described in one in 5, which is characterized in that the retainer member includes from institute State at least one holding lug (48) of lid (2) extension.

12. mechanism (1) according to claim 11, which is characterized in that the holding lug (48) includes first part (49) and second part (50), the first part (49) is axially extending and extends axially through the diaphragm (25), the second part (50) radially from the first part (49), the snap ring (37) is axially supported on the second part (49).

13. mechanism (1) according to claim 12, which is characterized in that the second part (50) is from the first part (49) it extends radially outwardly.

14. according to claim 1 to mechanism (1) described in one in 13, which is characterized in that the pressing plate (14) includes radial At least one supporting surface extended, the retainer member are suitable for axially being supported in the supporting surface in disengaged position.

15. a kind of clutch apparatus for motor vehicles, comprising: for rotating the reaction plate coupled with crankshaft, for joining It is connected to the frictional disk of the input shaft of gearbox, and according to claim 1 to clutch mechanism (1) described in one in 14, The pressing plate is activated by the diaphragm (25) to clamp or discharge the frictional disk on the reaction plate.