CN104421352A - Wear compensation-type clutch device - Google Patents
Wear compensation-type clutch device Download PDFInfo
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- CN104421352A CN104421352A CN201410451827.4A CN201410451827A CN104421352A CN 104421352 A CN104421352 A CN 104421352A CN 201410451827 A CN201410451827 A CN 201410451827A CN 104421352 A CN104421352 A CN 104421352A
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- diaphragm
- ratchet
- wear compensation
- active force
- elastic
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- 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
- F16D13/75—Features relating to adjustment, e.g. slack adjusters
- F16D13/757—Features relating to adjustment, e.g. slack adjusters the adjusting device being located on or inside the clutch cover, e.g. acting on the diaphragm or on the pressure plate
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a wear compensation-type clutch device comprising a wear compensation-type part provided with a latching pawl (20) intended to apply an elastic restoring force A on a diaphragm (6) and an elastic restoring force R on the teeth (30) of a ratchet wheel (13). The latching pawl (20) is designed in such a manner that when the diaphragm (6) is at a fully engaged position, the ratio of the elastic restoring force A to the elastic restoring force R is preferably larger than or equal to 1.2. In addition, the latching pawl (20) comprises at least one reinforcement rib (35) which tends to increase the elastic restoring force.
Description
Technical field
The present invention relates to a kind of wear compensation type clutch device, especially for the wear compensation type clutch device of motor vehicle.
Background technique
The friction plate that clutch device generally includes reaction plate, axially movable platen and installs between described reaction plate and platen.The diaphragm that moves through of platen controls, and diaphragm controls itself by clutch separation part (but é e d ' embrayage).
Clutch separation part is such as controlled by actuator, and actuator carries out management and control by electronic computer, to apply predetermined force and make diaphragm move in given distance on diaphragm.
Platen thus movable between the position engaged completely and the position be separated completely, in the position engaged completely, friction plate is tightly held between described platen and reaction plate, and in the position be separated completely, friction plate is released out.
The wearing and tearing of the liner using clutch device to cause friction plate and the relative material of the platen be associated and reaction plate.This is showed relative to the diaphragm be associated and/or relative to the change of reaction plate by the position of platen, produces the change of tightly holding active force of friction plate and the change of biting point and clutch separation part stroke.It should be noted, biting point is such position: light from occlusion, and moment of torsion can be passed through clutch device transmission.
The patent documentation FR 2 847 626 of claimant proposes a kind of clutch device, and described clutch device is furnished with wear compensation parts, and described wear compensation parts are plugged between platen and diaphragm, and described diaphragm is arranged on the lid that is fixed on reaction plate.These wear compensation parts comprise the ring with circumferential ramps, described in there is circumferential ramps the complementary opposed facets of ring and platen coordinate.The bevelled ring of tool is also for supporting diaphragm, and to make ring cause inclined-plane relative to the movement of opposed facets relative to the rotation of platen, and therefore, platen moves axially relative to diaphragm, lid and reaction plate.Thus the distance between platen and the reaction plate be associated can be changed to the mode compensated of wearing and tearing.
In addition one have gear mechanism to be fixed on the bevelled ring of tool and and worm meshing, worm screw is arranged in the box body being fixed on and covering, and has gear mechanism just to worm screw.
Connects, ratchet and be fixed on the click-fit covered worm screw and pawl wheel.Worm screw and/or ratchet are close to an alar part of box body by elastic mechanism.
Ratchet is the shape of elastic sheet, described elastic sheet comprise be fixed on cover standing part, on the whole perpendicular to standing part extend control section and the two side arms that described standing part is connected with control section.Control section comprises control tongue piece, controls tongue piece and coordinates with the gear teeth of ratchet, rotates to allow ratchet when wearing and tearing and avoids ratchet to rotate in contrary sense of rotation in a sense of rotation.Joint between side arm and control section is flexible, controls tongue piece and is always kept to rest on the gear teeth of ratchet.
Ratchet comprises elastic recovery tongue piece in addition, and elastic recovery tongue piece at one end portion is connected to standing part and extends between aforesaid side arm.Diaphragm against the second end (i.e. free end) of the elastic recovery tongue piece of ratchet, with activate time move control tongue piece.
Control section comprises two side direction separation members in addition, relative with control tongue piece, covers for resting on when diaphragm is positioned at the position be separated completely.Contact in the position be separated completely between the separation member of ratchet and lid allows guarantee to make, and when there are wearing and tearing, the control tongue piece of ratchet makes the corresponding gear teeth of ratchet quiver, can activate described ratchet when next zygophase.
Ratchet applies elastic recovery active force A for the position (position be particularly separated completely) rested at elastic recovery tongue piece on diaphragm on diaphragm, and on the corresponding gear teeth of ratchet, applies elastic recovery active force R in the position controlling tongue piece.
Can notice, active force A and R is particularly relevant to the [coefficient of (constante de raideur) of part involved by ratchet, i.e. the [coefficient of of the [coefficient of of elastic recovery blade tooth and the joint between control section and the side arm of ratchet.
In this way, when occurring wearing and tearing and when activating continuously at diaphragm, ratchet driving pawl and worm screw are rotated, and by there being gear mechanism, the bevelled ring of worm drive tool rotates.Thus the Distance geometry little by little increased between platen and lid little by little reduces the distance between platen and the reaction plate be associated, to compensate wearing and tearing.
The still unpub patent application FR 12/58929 of claimant discloses and uses similar wear compensation parts, and wherein, ratchet is not furnished with the elastic recovery tongue piece rested on diaphragm.In order to ensure to make to rest at the separation member of the position ratchet be separated completely to cover, standing part and side arm be flexibly deformable and apply towards lid elastic recovery active force.
Patent application FR 2 860 845 describes and use this kind of wear compensation parts in double clutch.First wear compensation parts and the second wear compensation parts are associated with first clutch mechanism and second clutch mechanism.Wear compensation parts are arranged near the platen that is associated at every turn.
Draw attention to, double clutch allows the engine shaft of motor vehicle alternately to connect with two input shafts of the coaxial of gearbox, but the gearbox of gearbox automatic type.
Therefore, double clutch allows to change speed ratio, keeps Engine torque to be delivered on the wheel of motor vehicle simultaneously.In fact, two clutches are associated with even number and odd number shelves speed ratio respectively.When changing speed ratio, first clutch is separated, and second clutch is engaged, and is little by little delivered to second clutch from first clutch to make Engine torque.
Each clutch comprises a mechanism, and described mechanism comprises diaphragm, and the platen that diaphragm is used for being connected together rotationally with lid and engine shaft coordinates.Each diaphragm is moveable by corresponding clutch separation part between position of rest and working position.According to the type of clutch, the joint of the corresponding engine shaft in the working position of diaphragm and gearbox or be separated, with being separated or joint of position of rest these axis bodies corresponding of diaphragm.Thus be called open type clutch and normal close type clutch respectively.
Clutch separation part is controlled by actuator, and described actuator carries out management and control by electronic computer, to apply predetermined active force and make diaphragm move in given distance on diaphragm.
The platen of each clutch---is actuated by the diaphragm of correspondence---for friction plate being tightly held in corresponding reaction plate.For each clutch, one reaction plate can be set.As modification, be used in the single reaction plate that two clutches installed between two friction plates are public.
Each friction plate and the input shaft of gearbox be connected rotationally with each reaction plate with and the flywheel turns that is connected of engine shaft be connected together.Therefore, friction plate tightly holding between the platen and reaction plate of correspondence allows moment of torsion to transmit between engine shaft and the axis body of gearbox be associated.
In the situation of double clutch, as in the situation of single clutch, the wearing and tearing of the friction facing using clutch to cause friction plate and the relative material of the platen be associated and reaction plate.This is embodied by the change in location of each platen relative to the diaphragm be associated and/or reaction plate, produces the change of tightly holding active force of friction plate and the change of biting point and clutch separation part stroke.
In all devices mentioned above, can observe, in fact, consider the foozle of the different component of clutch device, there is such situation: the control tongue piece of ratchet can be absorbed in the bottom of the gear teeth of ratchet.Ratchet from but fixed, it is invalid that wear compensation parts become.
Summary of the invention
Object of the present invention is particularly to provide a kind of simple, effective and economic solution to this problem.
For this reason, the present invention proposes a kind of wear compensation type clutch device, and described wear compensation type clutch device comprises: reaction plate, and described reaction plate is used for connecting rotationally with driving shaft, friction plate, described friction plate is negative holds friction facing, and described friction plate is used for connecting with driven shaft, platen, described platen is activated by diaphragm, and diaphragm is movable between the position engaged completely and the position be separated completely, and in the position engaged completely, platen tightly holds friction plate by reaction plate, and in the position be separated completely, platen is released out, for friction compensation sheet, platen and/or the wear compensation parts of the wearing and tearing of reaction plate be associated, described wear compensation parts comprise the bevelled parts of the tool being arranged in diaphragm avris, the bevelled parts of described tool and the part fits with opposed facets, the described parts with opposed facets are arranged in platen avris, the distance between diaphragm and platen is changed relative to the described rotation with the parts of opposed facets to make the bevelled parts of described tool, wear compensation parts also comprise the driving rotatable parts driving the bevelled parts of described tool to rotate, it is effective for can becoming owing to wearing and tearing when diaphragm activated, described driving rotatable parts comprise ratchet, ratchet coordinates with the elastic pawl that can be moved when activating diaphragm, elastic pawl comprises the control section of ratchet, on the gear teeth that described control section can rest on ratchet and the described gear teeth can be quivered when there are wearing and tearing, elastic pawl also comprises separation member, described separation member can rest on when diaphragm is positioned at the position be separated completely and cover, elastic pawl for applying elastic recovery active force A and apply elastic recovery active force R on the described gear teeth of the correspondence of ratchet on diaphragm, it is characterized in that, elastic pawl is designed to make, when diaphragm is positioned at the position engaged completely, elastic recovery active force A is greater than 1 with the ratio of elastic recovery active force R, further, elastic pawl comprises at least one stiffening rib, and described at least one stiffening rib is tending towards increasing elastic recovery active force A.
One of technical problem that the ratio A/R being greater than 1 with change is associated is not increase the general machine stress level of ratchet.The present invention is intended to increase active force A for this reason, reduces active force R simultaneously, or the ratio being intended to the increase being less than active force A increases active force R, to reduce the distortion of control section and/or to reduce the mechanical stress levels in some region of elastic pawl.
In addition, follow and be greater than 1 than (rapport) A/R and allow to avoid making the control section of ratchet to remain in the bottom of the gear teeth of ratchet on the whole service stage of clutch and block (bloquer), particularly when the dust by liner accumulate the additional friction active force, the change of friction factor of material and the centrifugal force that produce act on ratchet time.
There is stiffening rib to allow to increase and be derived from the [coefficient of of the part of the ratchet of active force A, also increase active force A when diaphragm is positioned at the position be separated completely.Draw attention to, the active force produced by elastic mechanism and its [coefficient of proportional, be usually labeled as K.
In addition, there is stiffening rib and allow to reduce mechanical stress levels and/or mechanical stress region is moved to more favorably ratchet region, to improve the endurance of ratchet and to ensure that endurance is greater than clutch working life on the rolling stock.
Preferably, when diaphragm is positioned at the position engaged completely, 1.2 are more than or equal to than A/R.
Can observe, this analogy followed between active force A and R allows to avoid making the control section of ratchet to keep blocking in the bottom of the gear teeth of ratchet.Thus ensure to make, ratchet can operationally freely move, and to rest on cover to make its separation member in the position be separated completely of diaphragm.If needed, this allows control section that the gear teeth of the correspondence of ratchet are quivered.The good operation of wear compensation parts thus be guaranteed.
Preferably, ratchet is designed to make, and when diaphragm is positioned at the position engaged completely, active force A is more than or equal to 2 with the ratio of active force R.
This allows the reliability strengthening wear compensation parts further.
According to an embodiment of the present invention, ratchet comprises standing part, what described fixed component was fixed on clutch device is in a fixing part relative to reaction plate, control section is connected to standing part by least one side arm, standing part and/or side arm are flexible, to apply return action power A on diaphragm, it is characterized in that, stiffening rib is formed on standing part and/or on side arm.
In this case, ratchet can have on the whole close to a kind of structure of the structure of the ratchet described in patent application FR 12/58929, has stiffening rib, to increase the [coefficient of of the part being derived from active force A simultaneously.Therefore, the active force A applied when diaphragm is positioned at the position be separated completely is increased, and is increased as active force A and the ratio of active force R.
The part of diaphragm thus can rest on the position of an edge of the control section of ratchet, described control section comprises the reinforcement feature of described edge, as the local deformation of being implemented by punching press of edge as described in such as.
Be increased according to active force A of the present invention, the position of the contact area between diaphragm and ratchet and/or near the stress of generation be also increased.The distortion that aforesaid reinforcement feature allows to avoid ratchet in these strong stress areas or damage.
According to another embodiment of the present invention, ratchet comprises standing part, what described fixed component was fixed on clutch device is in a fixing part relative to reaction plate, control section is connected to standing part by least one side arm, ratchet also comprises at least one elastic tongue piece, described at least one elastic tongue piece can rest on diaphragm, and to apply return action power A on diaphragm, stiffening rib is formed at least in part on elastic tongue piece.
In this case, ratchet can have on the whole close to a kind of structure of the structure of ratchet described in patent documentation FR 2847626, has stiffening rib simultaneously, with increase the part the being derived from active force A [coefficient of of---namely replying tongue piece---.Therefore, the active force A applied when diaphragm is positioned at the position be separated completely is increased, and is increased as active force A and the ratio of active force R.
According to a feature of the present invention, stiffening rib is formed by a convex portion, such as, through the convex portion of punching press enforcement.
Stiffening rib is also formed by a flange, and described flange, such as by being bent to form, is arranged at least one of corresponding edge of ratchet.
In addition, control section can comprise at least one stiffening rib, as such as convex portion, deforms under the stress produced by noticeable effort A to avoid control section.
The invention still further relates to a kind of double clutch, described double clutch comprises at least one previously described wear compensation type clutch device.
Certainly, the present invention is also applicable to the field of single clutch.The present invention is applicable to open type or normal close type clutch in addition.
Accompanying drawing explanation
Following as non-limiting example with reference to the description that accompanying drawing carries out by reading, the present invention will be understood better, and other details, features and advantages of the present invention will show, in accompanying drawing:
-Fig. 1 is the fragmentary axial cross-section of wear compensation type clutch device according to first embodiment of the invention,
-Fig. 2 is the view of the clutch device removed along the local of the arrow II of Fig. 1,
-Fig. 3 is the perspective view of wear compensation parts,
-Fig. 4 is the perspective view of ratchet and diaphragm,
-Fig. 5 is the perspective view of ratchet according to first embodiment of the invention,
-Fig. 6 is the sectional view of the ratchet of Fig. 5,
-Fig. 7 to Figure 12 is the perspective view of the ratchet according to six other mode of executions of the present invention.
Embodiment
Fig. 1 to Fig. 6 illustrates clutch device according to first embodiment of the invention.
Fig. 1 illustrate for moment of torsion transmit clutch device, especially for motor vehicle, described clutch device comprises: reaction plate (not shown), reaction plate for connecting driving shaft, as the crankshaft of internal combustion engine; With platen 1, platen can tightly hold friction plate 2 by reaction plate.Friction plate 2 consists of fin 3, and fin is held in the fixing friction facing 4 in fin 3 both sides in its periphery along negative.This friction plate 2 is connected to driven shaft, as the input shaft of gearbox for the axle bed (moyeu) by being connected to fin in the inner edge of fin.
By unshowned tangential tongue piece, platen 1 is connected together rotationally with lid 5, and lid is in hollow shape and make with stamping steel plate, and tangential tongue piece is axially flexible, forms the reply parts that platen 1 is replied to lid 5 simultaneously.
Platen 1---is connected together rotationally with lid 5 simultaneously---thus is axially movable by the effect of the ring film 6 that pivotable is installed on lid 5 relative to lid 5, and this is own known.Diaphragm 6 is controlled by clutch separation part, and clutch separation part rests on the finger-type body 7 of the radial inner edge being positioned at diaphragm 6.
Platen 1 thus movable between the position engaged completely and the position be separated completely, in the position engaged completely, friction plate 2 is tightly held between described platen 1 and reaction plate, and in the position be separated completely, friction plate 2 is released out.
Clutch comprises the auto-compensation parts of the wearing and tearing of friction facing 4 in addition, auto-compensation parts comprise annular slope 8, shape annular slope is formed and circumferentially to extend on platen 1, coordinate with annular opposed facets, annular opposed facets is held by a ring 9 is negative, and ring has tooth 10 on its edge, periphery and is plugged between platen 1 and diaphragm 6.
Compensating unit also comprises the rotating mechanism that ring is rotated, rotating mechanism comprises U-shaped bearing 11 (also seeing Fig. 2), rotating mechanism is negative holds an axis body 12, axis body is installed ratchet 13, worm screw 14 and returning spring 16, worm screw engages with the circumferential tooth 10 of ring 9 and engages rotationally with ratchet 13 (such as and ratchet be connected together) and between the alar part 15 being arranged on ratchet and bearing 11, returning spring is arranged between another alar part 17 of ratchet 13 and bearing 11.
The friction washer 18 made with copper-based material is arranged between an end of worm screw 14 and the corresponding alar part 15 of bearing 11.Friction washer 18 is such as connected together with the alar part 15 of bearing 11 or worm screw 14 rotationally by welding.Friction washer is preferably fixed on the alar part 15 of bearing 11.
Similarly, another packing ring 19 is arranged between the corresponding end of returning spring 16 and the corresponding alar part 17 of U-shaped bearing 11.
These packing rings 18,19 allow the wearing and tearing avoiding bearing 11, to make to drive the moment of torsion needed for worm screw 14 to be constant in time by ratchet 13.
Wear compensation parts also comprise elastic pawl 20, and elastic pawl engages with ratchet 13, to stop the rotation of worm screw 14 in a sense of rotation and to allow this rotation in another sense of rotation.Ratchet 20 is activated by a finger-type body on a limb (lobe) 21 or the edge, periphery that is positioned at diaphragm 6.
Ratchet 20 is formed by elastic sheet, and elastic sheet has: be fixed on the standing part 22 covered, described standing part comprises hole 23, and described hole is used for the installation of rivet 24; Control section 25, described control section extends perpendicular to standing part 22 on the whole; With two side arms 26, two side arms connects described standing part 22 and control section 25 also defines an opening 27 betwixt, and described opening allows the limb 21 of diaphragm 6 to pass through.The radially outer of opening 27 divides the straight flange portion 28 comprising the position being positioned at control section 25, and the limb 21 of diaphragm 6 moves with pawl 20 for resting in described straight flange portion.This straight flange portion 28 and control tongue piece 29 facing (enregard), contrary with the tongue piece on control section 25 (à l ' oppos é de).
Control tongue piece 29 to coordinate with the gear teeth 30 of ratchet 13, rotate in a sense of rotation to allow the ratchet 13 when there are wearing and tearing and avoid ratchet 13 to rotate in contrary sense of rotation.Joint 31 between side arm 26 and control section 25 is flexible, controls tongue piece 29 and is always kept to rest on the gear teeth 30 of ratchet 13.
Control section 25 comprises two side direction separation members 32 in addition, contrary with control tongue piece 29, for resting on the edge 33 of the opening 34 of lid 5 when diaphragm 6 is positioned at the position be separated completely.This opening 34 allows to avoid except due to the various collisions except aforesaid separation member 32 between ratchet 20 and the bottom of lid 5.In the position be separated completely, contact between the separation member 32 and lid 5 of ratchet 20 allows guarantee to make, when there are wearing and tearing, the control tongue piece 29 of ratchet 20 makes the corresponding gear teeth 30 of ratchet 13 quiver, can activate described ratchet 13 when next zygophase.
In order to ensure to make the separation member 32 of ratchet 20 rest on lid 5 well in the position be separated completely, standing part 22 and side arm 26 are flexibly deformable and apply towards the elastic recovery active force of lid 5.
Ratchet 20 thus for applying elastic recovery active force A (position be separated completely especially) on diaphragm 6, and controlling the position of tongue piece 29, the corresponding gear teeth 30 of ratchet 13 apply elastic recovery active force R, as shown on Fig. 6.
Can notice, active force A with R is particularly relevant to the [coefficient of of the part involved by ratchet 20, i.e. the [coefficient of being labeled as Kr of the [coefficient of being labeled as Ka of standing part 22 and/or side arm 26 and the joint 31 by the arc area formation between control section 25 and the side arm 26 of ratchet 20.
The operation of this clutch device and these wear compensation parts will be described in more detail now.
Fig. 1 schematically shows the clutch device when diaphragm 6 and platen 1 are positioned at the position engaged completely, and the liner 4 of friction plate 2 is in new state and tightly holds between platen 1 and unshowned reaction plate.In this position, the control tongue piece 29 of ratchet 20 has a free end leaned on the foot or bottom of the gear teeth 30 of ratchet 13.
When the clutch is disengaged, diaphragm 6 verts, to make its periphery along little by little releasing out platen 1 and ratchet 20.
The end of the control tongue piece 29 of ratchet 20, with following the inclined-plane be made up of tooth 30, is in the foot of tooth in end described in previous stage, and the gear teeth 30 of ratchet 13 are implemented to make, and in this release travel, the end controlling tongue piece 20 does not make tooth 30 quiver.This is obtained by the backstop of lid 5 by ratchet 20 by means of separation member 32.
When wearing and tearing occur liner 4, the platen 1 of the axial force of experience diaphragm 6 is near axially fixing reaction plate and lid 5.The outer radial periphery of diaphragm 6 along thus near reaction plate, in its motion, drive ratchet 20.Ratchet 13 thus rotate around its axis body 12 in the clockwise direction.This driving rotation of ratchet 13 causes worm screw 14 also to rotate on axis body 12.
The ring 9 with opposed facets keeps motionless in sense of rotation under the effect of the load of diaphragm 6, and the worm screw 14 engaged with tooth 10 is tightened on this tooth 10, simultaneously Compress Spring 16.
When following the lock out operation of the wear stage just described, platen 1 releases out liner 4, simultaneously under the effect of tangential tongue piece away from liner, tangential tongue piece by platen band to the bottom of lid 5 and make ring 9 contact with diaphragm 6.The alar part 15 of worm screw 14 to bearing 11 is actuated by spring 16, worm screw thus keep apart at wear stage and spring.The load of diaphragm 6 is no longer applied in ring 9, and spring 16 moves worm screw 14, and worm screw is avoided by ratchet 20 rotation and therefore avoids driving ring 9 to rotate by tooth 10.By coordinating with opposed facets, inclined-plane makes platen 1 leave the bottom of lid 5, thus compensates the wearing and tearing of liner 4 at least in part.
Do not enter exactly before compensated stage at blank compensation apparatus, multiple joint and lock out operation can be needed.
The present invention is intended to the good operation ensureing wear compensation parts, particularly ensures that the end making to control tongue piece 29 is not stuck in the bottom of the gear teeth 30 of ratchet 13.For this reason, the present invention proposes a kind of ratchet 20, and the structure of described ratchet is adapted so that the position be separated completely at diaphragm, and active force A is more than or equal to 1.2 with the ratio of active force R, is preferably more than or equals 2.
For this reason, need to increase the [coefficient of Ka of the elastic load part (partie é lastique charg é e) that ratchet 20 is replied to the direction of lid 5, elastic load part is standing part 22 and/or side arm 26 here.Similarly, advantageously, reduce the [coefficient of Kr of the payload segment that control tongue piece 29 is replied on the gear teeth 30 of ratchet 13, payload segment is the joint 31 between side arm 26 and control section 25 here.
In order to increase [coefficient of Ka, ratchet 20 is furnished with stiffening rib in the position of its standing part 22 and/or its side arm 26.
In mode of execution shown on Fig. 1 to Fig. 6, ratchet comprises the Axis Extension that two convex portions, 35, two convex portions are parallel to ratchet 20, is positioned near the both sides, medial axis of ratchet 20 and the side direction edge 36 of standing part 22.In this embodiment, convex portion 35 only extends on the standing part 22 of ratchet 20.
Convex portion 35 by distortion, such as, is formed by punching press.Each convex portion 35 thus form a recessed region and form an elevated regions in the one side of ratchet 20 on the another side of ratchet 20.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 35 relative to structure, makes active force A increase about 30% in the position engaged completely.
Fig. 7 illustrates the ratchet 20 according to the second mode of execution, wherein, the convex portion 38 of the additional raised portions 37 that the intermediate portion that standing part 22 is also included in standing part 22 outside previously described two convex portions 35 is formed and the position at each side arm 26 of ratchet 20.Convex portion 35,37,38 is all along the Axis Extension of ratchet 20.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 35,37,38, the position engaged completely relative to structure, makes active force increase about 45%.
Fig. 8 illustrates the ratchet 20 according to the 3rd mode of execution of the present invention, and be with the difference part of mode of execution shown on Fig. 5, the position of this external control section 25 of described ratchet comprises at least one stiffening rib, is two convex portions 39 here.These stiffening ribs 39 allow to avoid control section 25 to deform under the effect of diaphragm 6, to ensure good location and thus the good operation of wear compensation parts of the free end controlling tongue piece 29.In fact, active force A is increased, and can produce larger stress in the position of control section 25.Stiffening rib 39 has significant impact on active force R and on [coefficient of Kr.
Fig. 9 illustrates the ratchet 20 according to the 4th mode of execution of the present invention, comprises control section 25 and standing part 22 as mentioned before, and described standing part is furnished with control tongue piece 29 and the separation member 32 contrary with controlling tongue piece 29.Two-part 22,25 are interconnected by two side arms 26.Ratchet 20 comprises elastic recovery tongue piece 41 in addition, and described elastic recovery tongue piece at one end portion is connected to standing part 22 and extends between aforesaid side arm 26.The limb 21 of diaphragm 6, against the second end 42 (i.e. free end) of the elastic recovery tongue piece 41 of ratchet 20, controls tongue piece 29 to move when activating.In this case, ratchet 20 ensures towards the elastic recovery in the direction of lid 5 by replying tongue piece 41, but not ensures by standing part 22 and/or by side arm 26.
In order to increase active force A, thus be suitable for the hardness Ka increasing elastic tongue piece 41.For this reason, ratchet 20 comprises at least one stiffening rib 43, and described stiffening rib extends to the position of the join domain 44 of replying in tongue piece 41 and/or between described tongue piece 41 and standing part 22 at least in part.
On Fig. 9 shown in mode of execution in, the stiffening rib 43 in convex portion shape along the Axis Extension of ratchet 20, across reply tongue piece 41 on and aforesaid join domain on.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 43 relative to structure, in disengaging configuration, makes the active force A of reply tongue piece 41 increase about 5%.
Still in this embodiment, the straight flange portion 28 for the limb 21 supporting diaphragm 6 comprises the reinforcement feature in described straight flange portion, the local deformation 45 in the described straight flange portion 28 such as implemented by punching press.This kind of reinforcement feature 45 allows to avoid damaging control section 25, even if active force A increases, and changes [coefficient of Kr.
Certainly, this kind of reinforcement feature 45 is used also to be applicable to other mode of execution of the present invention.
Figure 10 illustrates the ratchet 20 according to the 5th mode of execution of the present invention, and be with the difference part of ratchet shown on Figure 10, convex portion 43 is extended, also to extend in fixed area 22.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 43 relative to structure, in disengaging configuration, makes the active force A of reply tongue piece 41 increase about 10%.
Figure 11 illustrates the ratchet 20 according to the 6th mode of execution of the present invention, be with the difference part of ratchet shown on Figure 10, described ratchet comprises two other stiffening ribs, described stiffening rib is the shape of flange 46, such as by being bent to form, be arranged in the side direction edge 36 of ratchet 20 in the position of side arm 26.
This kind of stiffening rib 46 can use and alternative convex portion 35 or supplement convex portion together with the ratchet shown on Fig. 5.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 43 relative to structure, in disengaging configuration, makes the active force A of reply tongue piece 41 increase about 10%.
Figure 12 illustrates the ratchet 20 according to the 7th mode of execution of the present invention, and be with the difference part of ratchet shown on Figure 11, flange 46, not only in the position of side arm 26, also extends in the position of standing part 22.
This kind of mode of execution allows to make, identical but do not comprise the ratchet 20 of stiffening rib 43 relative to structure, in disengaging configuration, makes the active force A of reply tongue piece 41 increase about 20%.
According to another mode of execution unshowned, ratchet 20 can not be furnished with stiffening rib and be included in the join domain 31 between side arm 26 and control section 25, and described join domain has less [coefficient of Kr, compares A/R to increase.Less Kr can such as be obtained by the cross section reducing described join domain 31.
The different mode of executions of ratchet 20 can be used in single clutch and double clutch.These mode of executions are also applicable to normal close type clutch or open type clutch.
The combination of all mode of executions that the ratio A/R at least equal 1 for having, being more than or equal to 1.2 ideally proposes allows to reduce mechanical stress levels and/or is moved to a more favorably ratchet region in mechanical stress region, to improve the endurance of ratchet and to ensure that endurance is greater than clutch working life on the rolling stock.
Claims (9)
1. a wear compensation type clutch device, described wear compensation type clutch device comprises: reaction plate, and described reaction plate is used for connecting rotationally with driving shaft; Friction plate (2), described friction plate is negative holds friction facing (4), and described friction plate is used for connecting with driven shaft; Platen (1), described platen is activated by diaphragm (6), described diaphragm is movable between the position engaged completely and the position be separated completely, described in the position engaged completely, platen (1) tightly holds described friction plate (2) by described reaction plate, and described in the position be separated completely, platen (1) is released out; for compensating described friction plate, described platen (1) and/or the wear compensation parts of the wearing and tearing of described reaction plate be associated, described wear compensation parts comprise the bevelled parts of tool (9) being arranged in described diaphragm (6) avris, the bevelled parts of described tool coordinate with the parts (8) with opposed facets, the described parts with opposed facets are arranged in described platen (1) avris, the distance between described diaphragm (6) and described platen (1) is changed relative to the described rotation with the parts (8) of opposed facets to make the bevelled parts of described tool (9), described wear compensation parts also comprise the driving rotatable parts driving the bevelled parts of described tool (9) to rotate, it is effective for can becoming due to wearing and tearing when described diaphragm (6) activated, described driving rotatable parts comprise ratchet (13), described ratchet coordinates with the elastic pawl (20) that can be moved when activating described diaphragm (6), described elastic pawl (20) comprises the control section (25) of described ratchet (13), the gear teeth (30) that described control section can rest on described ratchet (13) are gone up and the described gear teeth (30) can be quivered when there are wearing and tearing, described elastic pawl (20) also comprises separation member (32), described separation member can rest on lid (5) when described diaphragm (6) are positioned at the position be separated completely, described elastic pawl (20) is for above applying elastic recovery active force R at the upper elastic recovery active force A of applying of described diaphragm (6) with at the described gear teeth (30) of the correspondence of described ratchet (13)
It is characterized in that, described elastic pawl (20) is designed to make, and when described diaphragm (6) is positioned at the position engaged completely, elastic recovery active force A is greater than 1 with the ratio of elastic recovery active force R;
Further, described elastic pawl (20) comprises at least one stiffening rib (35,37,38,46), and described stiffening rib is tending towards increasing elastic recovery active force A.
2. wear compensation type clutch device according to claim 1, it is characterized in that, described elastic pawl (20) is designed to make, when described diaphragm (6) is positioned at the position engaged completely, elastic recovery active force A is more than or equal to 1.2 with the ratio of elastic recovery active force R.
3. wear compensation type clutch device according to claim 1, it is characterized in that, described elastic pawl (20) is designed to make, when described diaphragm (6) is positioned at the position engaged completely, elastic recovery active force A is more than or equal to 2 with the ratio of elastic recovery active force R.
4. the wear compensation type clutch device according to any one of Claim 1-3, it is characterized in that, described elastic pawl (20) comprises standing part (22), what described standing part was fixed on described wear compensation type clutch device is in a fixing part (5) relative to described reaction plate, described control section (25) is connected to described standing part (22) by least one arm (26), described standing part (22) and/or described arm (26) are flexible, above to apply elastic recovery active force A at described diaphragm (6), further, described stiffening rib (35,37,38) above and/or at described arm (26) is above formed at described standing part (22).
5. wear compensation type clutch device according to claim 4, it is characterized in that, a part (21) for described diaphragm (6) rests on the position of the edge (28) of the control section (25) of described elastic pawl (20), described control section (25) comprises the reinforcement feature of described edge (28), as the local deformation (45) of being implemented by punching press of edge (28) as described in such as.
6. the wear compensation type clutch device according to any one of claim 3 to 5, it is characterized in that, described elastic pawl (20) comprises standing part (22), what described standing part was fixed on described wear compensation type clutch device is in a fixing part (5) relative to described reaction plate, described control section (25) is connected to described standing part (22) by least one arm (26), described elastic pawl (20) also comprises at least one elastic tongue piece (41), described elastic tongue piece can rest on described diaphragm (6), above to apply elastic recovery active force A at described diaphragm (6), described stiffening rib (43) is at least in part in the upper formation of described elastic tongue piece (41).
7. the wear compensation type clutch device according to any one of claim 1 to 6, it is characterized in that, described stiffening rib is formed by a flange (46), described flange, such as by being bent to form, is arranged at least one of corresponding edge (36) of described elastic pawl (20).
8. the wear compensation type clutch device according to any one of claim 1 to 7, is characterized in that, described control section (25) comprises at least one stiffening rib, as such as convex portion (39).
9. a double clutch, is characterized in that, described double clutch comprises at least one wear compensation type clutch device according to any one of claim 1 to 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1358538A FR3010159B1 (en) | 2013-09-05 | 2013-09-05 | CLUTCH DEVICE WITH RETRACTION OF WEAR |
| FR1358538 | 2013-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104421352A true CN104421352A (en) | 2015-03-18 |
| CN104421352B CN104421352B (en) | 2018-02-13 |
Family
ID=49876794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410451827.4A Active CN104421352B (en) | 2013-09-05 | 2014-09-05 | Wear compensation type clutch apparatus |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN104421352B (en) |
| DE (1) | DE102014112710A1 (en) |
| FR (1) | FR3010159B1 (en) |
| IN (1) | IN2014DE02334A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016218653A1 (en) * | 2016-09-28 | 2018-03-29 | Schaeffler Technologies AG & Co. KG | Optimized drive pawl for TAC |
| FR3057922B1 (en) * | 2016-10-21 | 2020-08-07 | Valeo Embrayages | CLUTCH MECHANISM, ESPECIALLY FOR MOTOR VEHICLES |
| FR3138676A1 (en) * | 2022-08-05 | 2024-02-09 | Valeo Embrayages | CLUTCH MECHANISM FOR A MOTOR VEHICLE TRANSMISSION ASSEMBLY |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090536A (en) * | 1990-03-14 | 1992-02-25 | Kabushiki Kaisha Daikin Seisakusho | Self adjuster for push type clutch |
| US5927457A (en) * | 1996-06-24 | 1999-07-27 | Fichtel & Sachs Ag | Pressure plate arrangement for a motor vehicle friction clutch with automatic wear compensation |
| KR20040045381A (en) * | 2002-11-25 | 2004-06-01 | 발레오 앙브라이아쥐 | Friction clutch comprising a device for taking up wear of friction linings, in particular for a motor vehicle |
| CN103154548A (en) * | 2010-09-24 | 2013-06-12 | 株式会社艾科赛迪 | Clutch cover assembly |
| CN103161918A (en) * | 2011-12-09 | 2013-06-19 | 舍弗勒技术股份两合公司 | Parallel connection gear shifting speed changer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1258929A (en) | 1960-03-08 | 1961-04-21 | Improved game ball and device for its manufacture | |
| ES2197605T3 (en) * | 1998-02-05 | 2004-01-01 | Valeo Embrayages S.A.S. | CLUTCH MECHANISM TO FRICTION, IN PARTICULAR FOR MOTOR VEHICLE, WHICH INCLUDES A DEVICE FOR CONTRASTING WEAR. |
| FR2860845B1 (en) | 2003-10-14 | 2005-12-09 | Valeo Embrayages | DOUBLE CLUTCH, IN PARTICULAR FOR MOTOR VEHICLE |
| DE102011100869B4 (en) * | 2010-05-25 | 2020-08-20 | Schaeffler Technologies AG & Co. KG | Self-adjusting friction clutch |
| FR2984433B1 (en) * | 2011-12-16 | 2014-01-10 | Valeo Embrayages | CLUTCH WITH RETRACTION OF WEAR, IN PARTICULAR FOR MOTOR VEHICLE |
-
2013
- 2013-09-05 FR FR1358538A patent/FR3010159B1/en active Active
-
2014
- 2014-08-18 IN IN2334DE2014 patent/IN2014DE02334A/en unknown
- 2014-09-03 DE DE102014112710.2A patent/DE102014112710A1/en active Pending
- 2014-09-05 CN CN201410451827.4A patent/CN104421352B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090536A (en) * | 1990-03-14 | 1992-02-25 | Kabushiki Kaisha Daikin Seisakusho | Self adjuster for push type clutch |
| US5927457A (en) * | 1996-06-24 | 1999-07-27 | Fichtel & Sachs Ag | Pressure plate arrangement for a motor vehicle friction clutch with automatic wear compensation |
| KR20040045381A (en) * | 2002-11-25 | 2004-06-01 | 발레오 앙브라이아쥐 | Friction clutch comprising a device for taking up wear of friction linings, in particular for a motor vehicle |
| CN103154548A (en) * | 2010-09-24 | 2013-06-12 | 株式会社艾科赛迪 | Clutch cover assembly |
| CN103161918A (en) * | 2011-12-09 | 2013-06-19 | 舍弗勒技术股份两合公司 | Parallel connection gear shifting speed changer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014112710A1 (en) | 2015-03-05 |
| FR3010159A1 (en) | 2015-03-06 |
| FR3010159B1 (en) | 2015-08-21 |
| IN2014DE02334A (en) | 2015-06-26 |
| CN104421352B (en) | 2018-02-13 |
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