CN1003320B - Friction disk clutch, used mainly for motor driven vehicles - Google Patents

Friction disk clutch, used mainly for motor driven vehicles Download PDF

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Publication number
CN1003320B
CN1003320B CN85101247.7A CN85101247A CN1003320B CN 1003320 B CN1003320 B CN 1003320B CN 85101247 A CN85101247 A CN 85101247A CN 1003320 B CN1003320 B CN 1003320B
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China
Prior art keywords
spring
moment
torsion
friction element
disc
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Expired
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CN85101247.7A
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Chinese (zh)
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CN85101247A (en
Inventor
盖格·丘拉
特罗斯克·拉斯罗
克瓦克斯·伊斯万
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Csepel Autogyar
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Csepel Autogyar
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Priority to CN85101247.7A priority Critical patent/CN1003320B/en
Publication of CN85101247A publication Critical patent/CN85101247A/en
Publication of CN1003320B publication Critical patent/CN1003320B/en
Expired legal-status Critical Current

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Abstract

The present invention relates to a disk friction clutch. A torque transmission spring (12) is arranged between a driving member and driven members; a coupling element (14) is inserted between one end of the torque transmission spring (12) and a load bearing zone (13); the coupling element forms a pressing state with at least one of friction elements (16 and 17); the friction surfaces of the friction elements are tightly abutted on the driving member (6) or the driven members (1, 3 and 4). The coupling element is inserted into a torque transmission system composed of the driving member (6), the torque transmission spring (12) and the driven members (3 and 4) to make the friction elements (16 and 17) abutted with the driving member or the driven members (1, 3 and 4); the coupling element (14) is inserted among the torque transmission spring (12) and other components.

Description

Be mainly used in the disc friction clutch on the motor vehicle
It is any by the disc friction clutch on the oil-engine driven equipment with other to the present invention relates to mainly be used in motor vehicle.
As everyone knows, in the disc friction clutch of general motor vehicle, there is a moment of torsion to transmit spring between driving disc and the wheel hub.Therefore, the vibration of mutual interference mutually may take place with wheel hub in driving disc in transmission process, thereby, should consider vibration damping to this class device.To this, fix with its numerical value now or come vibration damping with the proportional damping of rotating speed.
If damping is a constant in whole speed range, then only work as the moment of torsion that transmitted when a particular range, just can obtain desirable effectiveness in vibration suppression, otherwise system will produce excessive damping or effectiveness in vibration suppression is undesirable.Another defective of constant damping is that when optimum value was transferred in damping, the wearing and tearing meeting of structural element constantly aggravated in the using process.
Under the situation that damping changes with rotating speed, many nodes in speed range, have been found.On these nodes, think that damping function is desirable, because along with the increase of rotating speed, the size of the damping torque that is directly proportional with centrifugal force that rotating speed is produced can be corresponding with the required damping of transmitting torque.This damping function mainly is when motor effectiveness is arranged just when the transmitting torque of motor is to the Maximum Torque rising characteristic with lower rotating speed rotation.
Obviously, these technical solutions do not reach a gratifying effectiveness in vibration suppression.Its reason is: in the transmission of torque process size of amplitude always with vibration source, proportional as the main moment of motor.According to the theory of Soviet Union expert Bi Yiwannuofu (BIvanov), in motor vehicle drive train, required damping torque M TSize should be:
M T＝π·R·K·Z·M
Wherein:
R: optimal damping ratio factor.
K: the frequency of experiment snake-like oscillation node of a curve.
Z: the deviation ratio of harmonic generation.
M: " disturbance " moment of torsion that motor exists.
From formula, clearly, damping torque is absolute and carry-over moment is proportional.At French FR-PS2, in 449, No. 822 patents,, adopted a disc friction clutch that the multiple shock reducing system is arranged for attempting to satisfy this requirement between damping torque and the carry-over moment.
Because degrees of offset and transmitting torque are proportional, according to the size of side-play amount, single damping device begins to have an effect successively.The deficiency of this scheme is: the conversion between each damping degree is not stepless, but interruption is arranged.In addition, its structure is very complicated.
Therefore, the purpose of invention is developed a kind of disc friction clutch exactly, makes the decay of transmission torsional oscillation all reach optimum value in each excursion of load, and proportional with the moment of torsion that transmits.
The present invention is based on and to sense the size of transmitting torque by enough simple facilities, and be converted into damping torque.
The present invention relates to be mainly used in the disc friction clutch of motor vehicle.This disc friction clutch is equipped with tangential moment of torsion and transmits spring between its driving part and driven member, and, transmit between at least one end of spring and the supporting surface at least one moment of torsion and to have linkage member, this linkage member and at least one friction element are impaction state, and the friction surface of friction element is close to driving part or driven member; Described linkage member inserts the moment delivery system, and this delivery system transmits spring by driving part, moment of torsion and driven member is formed.The insertion of this linkage member makes described friction element prop up in driving part or the driven member, and this linkage member is then between another in moment of torsion transmission spring and driving part or driven member.
As the mode of execution of a recommendation of disc friction clutch, except that moment of torsion transmits spring, linkage member also should with one with the spring that has pretightening force of the parallel installation of moment of torsion transmission spring and be in impaction state.
According to the present invention, the linkage member of disc friction clutch can be a tangential tensioning wedge-shaped blocks of installing, and the back of the body end of friction element is close to the plane of inclination of this wedge-shaped blocks.
According to the present invention, the friction element of disc friction clutch can be close to the internal surface at spring bumper cover.
According to the present invention, the friction element of disc friction clutch can be close to the shell at wheel hub.
According to the present invention, disc friction clutch can have at least two friction elements of settling back-to-back.
According to the present invention, disc friction clutch can have the friction element of two back-to-back arrangements, and they are close to the internal surface of spring housing side.
According to the present invention, disc friction clutch can be like this, and wherein back-to-back installation friction element is close to the shell surface of wheel hub, and another friction element is close to the internal surface of the spring bumper cover enclosure.
According to the present invention, disc friction clutch can be like this, and wherein linkage member and friction element form a monolithic construction.
According to the present invention, can think that at least one moment of torsion transmits spring and has two groups of linkage members and friction element, and this two set of pieces lays respectively at the two ends that moment of torsion transmits spring in the disc friction clutch.
, will recommend mode of execution as example herein,, invention will be described in further detail by means of following accompanying drawing with some:
Fig. 1 is the side view of disc friction clutch;
Fig. 2 is the sectional drawing of disc friction clutch shown in Figure 1;
Fig. 3 is another partial sectional view of this disc friction clutch;
Fig. 4 is the plotted curve of expression attenuation characteristic;
Fig. 5 and Fig. 6 are the side view and the partial sectional views of another mode of execution of disc friction clutch according to the present invention;
Fig. 7, Fig. 8 and Fig. 9 are the side views of the 3rd mode of execution of the present invention, partial view after cutting open and partial sectional view;
Figure 10 and Figure 11 are side-looking, the partial sectional views of the 4th mode of execution of the present invention.
Fig. 1, Fig. 2 and Fig. 3 show the structural configuration of disc friction clutch.
Spring bumper cover 3 and 4 usefulness rivets 2 are fixed on the wheel hub 1.Spring bumper cover is lived with rivet 5 rivetings in its flange edge, to prevent the spring bumper cover buckling deformation.
Driving disc 6 is installed on the wheel hub 1, and can rotate, and carrier 7 and 8 is positioned at the both sides of driving disc 6, and with rivet 9 they is linked together.Carrier has occupied the space of spring bumper cover fully.Liner 10 usefulness rivets 11 link with driving disc 6.Similar with general motor vehicle, the driving part of disc friction clutch has driving disc 6 and is furnished with liner 10 and carrier 7 and 8, and driven member is wheel hub 1 and spring bumper cover 3 and 4.
At spring bumper cover 3,4 and on the driving disc 6 that clips by carrier 7 and 8, the groove that is formed by an opening is all arranged, moment of torsion transmits spring and just is assemblied in this groove.
Transmit one of spring 12 end at moment of torsion, the opening of aperture efficiency on spring bumper cover 3,4 on driving disc 6 and the carrier 7,8 is long, end at this moment of torsion transmission spring has a linkage member to be placed in the long opening, and this linkage member is a tensioning wedge-shaped blocks 14 at this.Wedge-shaped blocks 14 is relative therewith, has a tensioning wedge-shaped blocks 15 to be pressed on the supporting surface 13 that is formed by opening, and two friction elements 16 and 17 back-to-back installations also are bearing on the plane of inclination of these two wedge-shaped blockss.
The rubbing surface 18 of friction element 16,17 and 19 and the internal surface of spring bumper cover 3,4 contact.
Transmit in the spring 12 at moment of torsion, a preloading spring 20 is installed, an end of this preloading spring is pressed on the back of the body end of tensioning wedge-shaped blocks 14, and the other end leans on mutually with carrier 7 and 8.The thickness that the outside diameter of preloading spring must not be added up greater than carrier and driving disc.
The damping function of disc friction clutch is produced in the following manner:
The common element that plays damping function has: moment of torsion transmits spring 12, prefastening force spring 20, tensioning wedge- shaped blocks 14 and 15, and friction element 16 and 17.
During system quiescence, the said elements present position as Fig. 3 a) shown in.At this moment, moment of torsion transmission spring 12 makes driving disc 6 and spring bumper cover 3 and 4 be in the position of opening upper support spring.And moment of torsion transmission spring 12 neither loads on the tensioning wedge- shaped blocks 14,15 between the supporting surface 13 that is installed in spring one end and driving disc 6, does not also load on friction element 16,17.Consider that the reverse the other end of preloading spring 20 and wedge-shaped blocks compresses driving disc 6, because size relationship will have a certain size masterpiece to be used on the wedge-shaped blocks 14, so tensioning wedge- shaped blocks 14 and 15 is just pressed to friction element 16,17 internal surface of spring bumper cover 3 and 4.This means, though the frictional force action that a little constant existence is arranged equally also acts on the internal surface of spring bumper cover 3 and 4 on the rubbing surface 18,19 of friction element 16 and 17.
Work as engine start, when clutch is closed, the flywheel of motor will carry disc friction clutch and rotate with direction shown in the arrow 21.Thereby the driving disc that liner 10 at first is installed begins rotation, by moment of torsion transmission spring 12 and spring bumper cover 3,4 moment of torsion is passed to wheel hub 1 again subsequently.
In containing this structure of damping member, the transmission of moment of torsion produces by means of these elements, and this phenomenon occurs in Fig. 3 b) shown in situation in.
Driving disc 6 produces displacement with respect to spring bumper cover 3 and 4.One end of the spring 12 of moment of torsion transmission at this moment will prop up spring bumper cover 3,4, and the other end leans against tensioning wedge-shaped blocks 14.Under the effect of the spring force that constantly rises, tensioning wedge- shaped blocks 14 and 15 is pressed to the internal surface of spring bumper cover 3,4 to friction element 16 and 17, like this, rubbing surface 18,19 and the frictional force between spring bumper cover 3,4 internal surfaces at friction element 16,17 increase, and the effect of this frictional force causes slowing down torque vibration.
Damping characteristic shows in Fig. 4 significantly, damping moment of torsion M TMark and draw y coordinate in the drawings, moment of torsion Mn that is transmitted and the relative displacement footmark that produces between driving disc 6 and wheel hub 1 are painted abscissa in the drawings.
Obviously, damping torque is always by a substantially invariable damping moment of torsion M TCWith a variable damping moment of torsion M TVForm.
Therefore, damping torque can be expressed from the next:
M T＝M TC+M TV
Here:
M TC＝F/Sin（α-ξ）μ
M TV＝XMn/YSin（α-ξ）μ
Wherein:
F: the spring force of prefastening force spring 20.
α: the formed angle of tensioning wedge-shaped blocks and friction element.
ξ: the Arctan of friction factor between tensioning wedge-shaped blocks and friction element.
μ: the friction factor between friction element and spring bumper cover.
X: the moment of torsion that works in damping transmits the number of spring.
Y: moment of torsion transmits the sum of spring.
Clearly, needed damping torque can transmit the number of spring by the size of adjusting angle [alpha] and the moment of torsion that works easily and obtain.
If it is the occasion that changes that this friction clutch is used for the direction of the moment of torsion of its transmission,, then should consider damping forward and reverse effect such as when driving moment break-in or the engine braking (going down the hill).In this case, damping member all should be equipped with in the two ends of moment of torsion transmission spring, as illustrated in Figures 5 and 6.
Transmit an end of spring 12 at moment of torsion, the mode that wedge-shaped blocks 14 and 15, friction element 16 and 17 were described with the front is assembled, and transmit the other end of spring at moment of torsion, tensioning wedge-shaped blocks 14 ' and 15 ' and friction element 16 ', 17 ' in a similar manner install.So, the effect of damping can be worked at both direction like that with described.
Another structural type is shown in Fig. 7,8,9.
At driving disc 22 with clamp in the carrier 23 and 24 of driving disc, there is an opening settling moment of torsion to transmit spring 12; This opening normal opening of direction ratio therein will be grown.Side far away is the cylndrical surface to opening from the disc friction clutch center; Its geometrical center promptly is the center of this clutch.At the long end of opening, a friction element 27 is housed.
The rubbing surface 30 of friction element 27 is close to the cylndrical surface of driving disc 22 and carrier 23 and 24 formed openings, and therefore, rubbing surface 30 itself also is the cylndrical surface.
In the both sides of friction element 27, there is projection 28 and 29 to extend into the plane of spring bumper cover 25 and 26, and props up an end of the opening of spring bumper cover 25 and 26.
The normal of the supporting lug 28 of opening and the surface of 29 1 ends and moment of torsion transmission spring 12 longitudinal shafts is α at angle.
Moment of torsion transmits spring 12 and directly props up and be close to friction element 27.
The damping function of disc friction clutch is to produce like this:
At ato unit, after the closed clutch, flywheel makes driving disc 22 begin to rotate with direction shown in the arrow 21 from state of rest.
The end opposite with friction element 27 that be positioned at that moment of torsion transmits spring 12 only leans against on the driving disc 22, and spring bumper cover 25,26 will lag behind with respect to driving disc 22 according to the size of transmitting torque.
Moment of torsion transmits spring 12 presses to the periphery that its driving disc and carrier 23,24 are constituted to friction element 27.Because friction element 27 and spring bumper cover 25,26 move together, the increase of frictional force makes the damping function doing the trick.
Another possible structure as shown in Figure 10 and Figure 11.Arrive structural similarity shown in Figure 3 with Fig. 1, an opening is arranged on driving disc, it is used to settle moment of torsion to transmit spring, and settles friction element in the one side.Clamp in both sides on the carrier 31 of driving disc 6, groove 41 is arranged.
The end that moment of torsion transmits spring 12 props up tensioning wedge-shaped blocks 34, and this wedge-shaped blocks is arranged in the prolongation of the opening of driving disc 6.In groove 41, be equipped with U type friction element 35 and 36.The closed end of friction element 35,36 is by 34 supportings of tensioning wedge-shaped blocks.
The external flange of spring bumper cover 38,39 forms a conical enclosure 32 and 33, and is gapped between the side of this enclosure distal end and the driving disc 6.
The rubbing surface 37 of friction element 36 is close to the shell of wheel hub 1, and friction element 35 is close to the internal surface of the conical enclosure 32 and 33.
The course of action of disc friction clutch is as follows:
When the clutch closure, driving disc 6 drives and its riveting carrier 31 rotations together with direction shown in the arrow 21.
Carrier 31 is pressed to tensioning wedge-shaped blocks 34 with the side that it has groove 41 with friction element 35 and 36, and therefore, friction element 35 and 36 is pressed towards shell surface and the conical enclosure 32 of spring bumper cover 39 and 40 and 33 the internal surface of wheel hub 1 respectively.The frictional force that increases has produced damping function.
The advantage of this solution is: can obtain Hungary HU-PS155 thus, and No. 646 described dampings relevant of patent with rotating speed, and this result can only realize with a friction element.
In above-described all application examples, the preloading spring that transmits the parallel installation of spring with moment of torsion is arranged all.Certainly, preloading spring can omit, and in this case, does not have basic damping, has only the damping that produces according to moment of torsion.

Claims (10)

1, be mainly used in the disc friction clutch on the motor vehicle, tangential moment of torsion is installed between its driving part and the driven member transmits spring, it is characterized in that: transmit between at least one end of spring (12) and the supporting surface (13) at least one moment of torsion and have linkage member (14,34), this linkage member and at least one friction element (16,17,35,36) be impaction state, the friction surface of friction element is close at driving part (6) or driven member (1,3,4,32,33) on, and described linkage member is inserted in by driving part, moment of torsion transmits in the moment of torsion delivery system of spring and driven member composition, so that friction element props up one in driving part or the driven member, this linkage member is then between another in moment of torsion transmission spring and driving part or driven member.
2, disc friction clutch according to claim 1 is characterized in that: linkage member (14,34) not only transmits spring (12) with moment of torsion, and compresses mutually with the preloading spring (20) that is parallel to moment of torsion transmission spring.
3, disc friction clutch according to claim 1 and 2 is characterized in that: linkage member is the tensioning wedge-shaped blocks of tangentially arranging (14,34), and the back side of friction element (16,17,35,36) is close to the plane of inclination of this wedge-shaped blocks.
4, disc friction clutch according to claim 1 and 2 is characterized in that: friction element (16,17) is close to the internal surface of spring bumper cover (3,4).
5, disc friction clutch according to claim 1 and 2 is characterized in that: friction element (36) is close to the shell of wheel hub (1).
6, disc friction clutch according to claim 1 and 2 is characterized in that: it has two friction elements of installing back-to-back (16,17,35,36) at least.
7, disc friction clutch according to claim 1 and 2 is characterized in that: two friction elements (16,17) of An Zhuaning are close to the inner side surface of spring bumper cover (3,4) back-to-back.
8, disc friction clutch according to claim 1 and 2, it is characterized in that: one of friction element of An Zhuaning (36) is close to the shell surface of wheel hub (1) back-to-back, another one friction element (35) is close to the internal surface of the enclosure (32,33) of spring bumper cover (39,40).
9, disc friction clutch according to claim 1 and 2 is characterized in that: linkage member and friction element form an overall structure (27).
10, disc friction clutch according to claim 1 and 2 is characterized in that: at least one moment of torsion transmits spring and has two groups of linkage members (14) and friction element (16,17), and this two set of pieces is installed on the two ends that moment of torsion transmits spring respectively.
CN85101247.7A 1985-04-01 1985-04-01 Friction disk clutch, used mainly for motor driven vehicles Expired CN1003320B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN85101247.7A CN1003320B (en) 1985-04-01 1985-04-01 Friction disk clutch, used mainly for motor driven vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN85101247.7A CN1003320B (en) 1985-04-01 1985-04-01 Friction disk clutch, used mainly for motor driven vehicles

Publications (2)

Publication Number Publication Date
CN85101247A CN85101247A (en) 1987-01-17
CN1003320B true CN1003320B (en) 1989-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN85101247.7A Expired CN1003320B (en) 1985-04-01 1985-04-01 Friction disk clutch, used mainly for motor driven vehicles

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011118787A1 (en) * 2011-11-17 2013-05-23 Borgwarner Inc. A coil spring arrangement for a torsional vibration damper and method for producing a support wire for such a coil spring arrangement
FR3026451B1 (en) * 2014-09-30 2016-09-09 Valeo Embrayages FRICTION DISC FOR CLUTCH

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