CN102494046A - Compensatory clutch with double diaphragm springs - Google Patents
Compensatory clutch with double diaphragm springs Download PDFInfo
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- CN102494046A CN102494046A CN2011104302933A CN201110430293A CN102494046A CN 102494046 A CN102494046 A CN 102494046A CN 2011104302933 A CN2011104302933 A CN 2011104302933A CN 201110430293 A CN201110430293 A CN 201110430293A CN 102494046 A CN102494046 A CN 102494046A
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- clutch
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Abstract
The invention discloses a compensatory clutch with double diaphragm springs, belonging to the technical field of improvement of clutches. The invention aims to provide the compensatory clutch with the double diaphragm springs, which is used for solving the problem that the pedal force of a clutch is increased after a vehicle is driven for a certain stroke and reducing the cost. A clutch cover of the compensatory clutch is connected with two support rings; a main diaphragm spring is clamped between the two support rings; a pressure plate is in contact with the main diaphragm spring; a dish-shaped compensatory spring is arranged at the inner sides of the support rings and is clamped between the main diaphragm spring and the clutch cover; and an external diameter part of the dish-shaped compensatory spring is in contact with the main diaphragm spring, and an internal diameter part of the dish-shaped compensatory spring is in contact with the clutch cover. The compensatory clutch has the benefits that: compared with the traditional clutch, the compensatory clutch has the advantages that the pedal force is greatly reduced after a friction plate is worn and is basically consistent with that of the clutch in an initial installing state, and the clutch is convenient to operate; the pressing force of the clutch in the whole process that the friction plate is worn is kept relatively constant, and therefore, the torque capacity of the clutch is less in fluctuation, and the performance of the clutch is stable; and compared with the traditional clutch, only one dish-shaped compensatory spring is additionally provided, and therefore, the clutch is simple in structure and low in cost.
Description
Technical field
The invention belongs to the improvement technical field of clutch.
Background technique
Because the intrinsic characteristic of diaphragm spring clutch---clutch separation power behind the friction disc wear is apparently higher than the clutch separation power of initial installment state; The automobile ubiquity that diaphragm spring clutch is housed the at present problem that clutch-pedal load increases behind certain mileage of going causes user's complaint.If the method through reducing initial pedaling force solves, then there is the drawback of sacrificing torque capacity, therefore need make impacting force and Separating force in the clutch friction pad wear overall process keep constant relatively, thereby solve the problem that clutch-pedal load increases.At present employed various solutions exist complex structure, shortcoming with high costs, therefore need a kind of solution simple in structure, with low cost.
Summary of the invention
The objective of the invention is a kind of solution compensation clutch of double-diaphragm spring that clutch-pedal load increases problem and reduces cost after the certain mileage of vehicle driving.
Clutch cover of the present invention is connected with two supporting rings; The main film spring is held between two supporting rings; Platen contacts with the main film spring; The dish counterbalance spring is positioned at the supporting ring inboard, and dish-shaped counterbalance spring is held between main film spring and the clutch cover, and dish-shaped counterbalance spring outer radius portion contacts with the main film spring, inner-diameter portion whose contacts with clutch cover.
The invention has the beneficial effects as follows:
1, compare with conventional clutch, the pedaling force behind the friction disc wear reduces greatly, with initial installment state basically identical, handles light;
2, the impacting force of clutch in the friction disc wear overall process keeps constant relatively, so the fluctuation of the torque capacity of clutch is less, stable performance;
3, compare with conventional clutch, only increase a dish-shaped counterbalance spring, simple in structure, with low cost.
Description of drawings
Fig. 1 is a structure sectional view of the present invention;
Fig. 2 is a main film spring-load characteristic curve schematic representation of the present invention;
Fig. 3 is dish-shaped counterbalance spring load characteristic curve schematic representation;
Fig. 4 is a load characteristic curve schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
As shown in Figure 1, the 1st, friction plate, the 2nd, platen, the 3rd, main film spring, the 4th, clutch cover, the 5th, supporting ring, the 6th, dish-shaped counterbalance spring.
Like Fig. 2, Fig. 3, shown in Figure 4, the X axle is the platen displacement amount, and the Y axle is the clutch impacting force; X1 is initial installment state, and X2 is a state of wear, and Xm is a peak state; F1 is the initial installment state impacting force of clutch; F2 is the impacting force of clutch when reaching wear limit, and Fm is a clutch peak value impacting force, and Fm-F1 is the impacting force variable quantity in the friction disc wear process.
Use along with vehicle; Friction plate weares and teares, the thickness attenuation, and platen is moved to the left with the attenuation of friction plate; The main film spring overturns with platen generation cone angle; The dish counterbalance spring is produced cone angle upset and equilibrant force by the main film length of spring compressed, thereby compensation makes the impacting force of clutch assembly maintain a constant relatively state because the impacting force that the upset of main film spring cone angle causes raises.
Along with the continuation of vehicle is used; Main film spring cone angle upset amount strengthens, when the friction disc wear amount surpass projected life 50% the time, the load of main film spring begins to descend; This moment, the cone angle upset amount of dish-shaped counterbalance spring also surpassed the design flex point; The equilibrant force of dish counterbalance spring also begins to descend, and the impacting force of clutch assembly still maintains a constant relatively state, reaches the wear-out life of design until clutch friction plate.
Embodiment:
With the compensation clutch of DST200 type double-diaphragm spring is example: its main film spring design cone angle be 13 ° 20 ', its dish-shaped counterbalance spring design cone angle be 14 ° 45 ', its load characteristic curve characteristic point parameter is following:
| Characteristic point | The main film spring | The dish counterbalance spring | Clutch assembly |
| X1(mm) | 7.7 | 7.7 | 7.7 |
| F1(N) | 3500～3800 | 0 | 3500～3800 |
| Xm(mm) | 6.7 | 6.7 | 6.7 |
| Fm(N) | 4400～4800 | -850～-800 | 3550～4000 |
| X2(mm) | 5.7 | 5.7 | 5.7 |
| F2(N) | 3700～4000 | -200～-100 | 3500～3900 |
| Fm-F1(N) | 900～1000 | ———— | 50～200 |
When clutch is in initial installment state; The operation point of main film spring-load characteristic curve (Fig. 2) and dish-shaped counterbalance spring load characteristic curve (Fig. 3) is in the X1=7.7mm place; The impacting force that this moment, the main film spring provided is 3500～3800N; The impacting force that the dish counterbalance spring provides is 0N, and the impacting force of clutch assembly is 3500-0～3800-0=3500～3800N.
After friction plate weares and teares; The operation point of clutch is moved to the left along main film spring-load characteristic curve (Fig. 2) and dish-shaped counterbalance spring load characteristic curve (Fig. 3); When wear extent reached 1mm, the clutch operation point was in the peak state at Xm=6.7mm place, and the impacting force that this moment, the main film spring provided is 4400～4800N; The impacting force that provides of dish counterbalance spring is-850～-800N, the impacting force of clutch assembly is 4400-850～4800-800=3550～4000N.
After friction plate continues wearing and tearing; The operation point of clutch continues to be moved to the left along main film spring-load characteristic curve (Fig. 2) and dish-shaped counterbalance spring load characteristic curve (Fig. 3); The clutch impacting force is crossed peak point and is begun to descend; Reach the design wear limit of 2mm until wear extent, the clutch operation point is in the X2=5.7mm place, and the impacting force that this moment, the main film spring provided is 3700～4000N; The impacting force that provides of dish counterbalance spring is-200～-100N, the impacting force of clutch assembly is 3700-200～4000-100=3500～3900N.
In clutch friction pad wear overall process, the impacting force variable quantity that the main film spring provides is 4400-3500～4800-3800=900～1000N, and variance ratio is about 26% of an initial impacting force.Because the effect of dish-shaped counterbalance spring; The work impacting force variable quantity of the compensation clutch assembly of double-diaphragm spring is 3550-3500～4000-3800=50～200N; Variance ratio is 1.4%～5.3% of an initial impacting force, and variance ratio has only 5%～20% of ordinary clutch, is in relative constant state.
The impacting force and the Separating force of clutch are linear; Because the impacting force of the compensation clutch of double-diaphragm spring in the friction disc wear overall process keeps constant relatively; It is constant relatively that its Separating force also keeps, thereby solve the problem that clutch-pedal load increases along with the use of vehicle.
Claims (1)
1. compensation clutch of double-diaphragm spring; Clutch cover is connected with two supporting rings; The main film spring is held between two supporting rings, and platen contacts with the main film spring, it is characterized in that: dish-shaped counterbalance spring is positioned at the supporting ring inboard; The dish counterbalance spring is held between main film spring and the clutch cover, and dish-shaped counterbalance spring outer radius portion contacts with the main film spring, inner-diameter portion whose contacts with clutch cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104302933A CN102494046A (en) | 2011-12-21 | 2011-12-21 | Compensatory clutch with double diaphragm springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104302933A CN102494046A (en) | 2011-12-21 | 2011-12-21 | Compensatory clutch with double diaphragm springs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494046A true CN102494046A (en) | 2012-06-13 |
Family
ID=46185894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104302933A Pending CN102494046A (en) | 2011-12-21 | 2011-12-21 | Compensatory clutch with double diaphragm springs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494046A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141716A (en) * | 2014-07-21 | 2014-11-12 | 上海萨克斯动力总成部件系统有限公司 | Auxiliary spring of clutch |
| CN104455065A (en) * | 2014-11-26 | 2015-03-25 | 长春一东离合器股份有限公司 | Compensation mechanism of diaphragm spring clutch |
| CN105793591A (en) * | 2013-12-06 | 2016-07-20 | 舍弗勒技术股份两合公司 | Engaging/releasing system for a friction clutch |
| CN109115148A (en) * | 2018-09-27 | 2019-01-01 | 长春东离合器股份有限公司 | Automobile pedal travel test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29508087U1 (en) * | 1994-12-24 | 1995-07-20 | Fichtel & Sachs Ag | Friction clutch with auxiliary spring to support the release force |
| US5988339A (en) * | 1996-11-22 | 1999-11-23 | Exedy Corporation | Configuration for retaining clutch cover assembly release-load compensating conical spring |
| DE19708041C2 (en) * | 1997-02-28 | 2002-01-03 | Mannesmann Sachs Ag | Release system for actuating a friction clutch |
| WO2003087606A1 (en) * | 2002-04-09 | 2003-10-23 | Automotive Products Group Limited | Clutches |
| CN101535671A (en) * | 2006-11-16 | 2009-09-16 | 株式会社艾科赛迪 | Clutch cover assembly |
-
2011
- 2011-12-21 CN CN2011104302933A patent/CN102494046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29508087U1 (en) * | 1994-12-24 | 1995-07-20 | Fichtel & Sachs Ag | Friction clutch with auxiliary spring to support the release force |
| US5988339A (en) * | 1996-11-22 | 1999-11-23 | Exedy Corporation | Configuration for retaining clutch cover assembly release-load compensating conical spring |
| DE19708041C2 (en) * | 1997-02-28 | 2002-01-03 | Mannesmann Sachs Ag | Release system for actuating a friction clutch |
| WO2003087606A1 (en) * | 2002-04-09 | 2003-10-23 | Automotive Products Group Limited | Clutches |
| CN101535671A (en) * | 2006-11-16 | 2009-09-16 | 株式会社艾科赛迪 | Clutch cover assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105793591A (en) * | 2013-12-06 | 2016-07-20 | 舍弗勒技术股份两合公司 | Engaging/releasing system for a friction clutch |
| CN105793591B (en) * | 2013-12-06 | 2018-01-19 | 舍弗勒技术股份两合公司 | Engaged/disengaged system for friction clutch |
| CN104141716A (en) * | 2014-07-21 | 2014-11-12 | 上海萨克斯动力总成部件系统有限公司 | Auxiliary spring of clutch |
| CN104455065A (en) * | 2014-11-26 | 2015-03-25 | 长春一东离合器股份有限公司 | Compensation mechanism of diaphragm spring clutch |
| CN109115148A (en) * | 2018-09-27 | 2019-01-01 | 长春东离合器股份有限公司 | Automobile pedal travel test device |
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Application publication date: 20120613 |