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1、0附 录 1（原文）Clutch of new developments in technologyAbstract: in recent years car design and manufacturing technology progress for all to see. In order to further improve product performance, prolong service life, common mechanical clutch technology is also produced a remarkable change. No matter from
2、 structural characteristics, product process performance, or control technology, mechanical clutch of technological progress in some extent reflects the development of design concepts, and possible technology trends in the future. Keywords: clutch; Technology development1, introduction In car techno
3、logy rapid development today, especially with the electronic technology in cars, the extensive application of vehicle drivetrain is had great progress, as an important part of the transmission of the clutch assembly force transmission, the burden of reducing vibration and prevent system overload ver
4、y important role. To make sure that the power transmission and reliable, separate thoroughly, combined with soft, damping good, small volume, light weight, easy, long service life, making the clutch product either cash from the performance, structure, or manufacturing mode and control, in the occurr
5、ence of a lot of change. They greatly optimized clutch all aspects of performance, to some extent look, these changes are also reflected the development direction of the clutch.2, engine flywheel new structure As one of the flywheel storage components engine, is also part of the clutch initiative. A
6、s the car transmission belong to multi-freedom torsional vibration system, whether the incentive and transmission system, or the associated force vibration type and the coupling vibration with other statements are very complex. In order to adapt to car driving conditions of vibration and noise reduc
7、tion of reducing the need, making cars, ride comfort the role of torsional shock absorber is extremely important. It should be able to adjust the system inherent frequency, the system mainly low-order resonance critical speed remove common, also need to use speed range, still need to decrease amplit
8、ude damping of transmission system can reduce idle noise, ease the impact of the special case load. Previous clutch platen set on by a twist of shock absorber, decorate a space place is restricted, shock absorber work reverse Angle small, torsion stiffness big, capacity small, springs, and therefore
9、 not guarantee the intensity of vibration reduction is limited.1In recent years, the emergence of a reverse damping characteristics and performance to price are ideal double quality flywheel structure. The flywheel by primary flywheel, reverse shock absorber and subprime flywheel composition, among
10、them, the primary flywheel on one hand we should provide for the shock absorber and clutch installation space, on the other hand also with appropriate rotational inertia insure a car, and reduce passed back starting the amplitude. Generally, double quality flywheel adopts with circular arc shape alo
11、ng the spiral spring primary flywheel outer periphery decorate way, in limited circumstances decorate a space, the arrangement to obtain larger primary flywheel rotational inertia. The inertia and the clutch after brief increase engine speed fluctuation of related parts, shorten their service life.
12、To avoid the above phenomenon, often need additional Settings special damping, such, can increase the difficulty and cost of product development. Because the engine of the car front front drive type of transmission installation space is limited, so this kind of structure in FF type cars to the promo
13、tion. Meanwhile, this kind of decorate spring along the circumference, due to high speed double quality flywheel centrifugal role, spring wear when, or even produces broken.Using radial layout springs can improve the double quality flywheel of the above mentioned products defect. It consists of prim
14、ary flywheel, 3 4 springs box, damping dish and subprime flywheel composition. Because the suspension spring box of radial layout, the primary flywheel rely on four posts the muscles of rib takes form enough flywheel stiffness and produced similar with traditional flywheel inertia.This kind is decor
15、ated in a small space to with smaller quality to gain the maximum rotation inertia, help reduce the assembly structure, the axial dimensions for subprime flywheel and clutch decorate a space make more. Its damping device by a wear-resisting plastic gasket, a belt of steel plate and a slot disc sprin
16、g washers constitute, they set in damping plate, rely on damping disc hole flanging positioning and compaction, the damping disk with primary flywheel riveted by the subprime, plastic gasket flywheel slot drive. Practice proves that the double quality than ever, this structure can be the flywheel in a limited space get quite good vibration reduction.Engine for the job, usually by the flywheel, inertia and the clutch clutch disc provides together. The ideal flywheel structure should be to
