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1、 毕业设计（论文）英文翻译、年级、专业: 2008级机械设计制造及其自动化 姓 名: 学 号: 指 导 教 师: The design of diaphragm springAbstractThe clutch is the important components in automobile transmission system, the main function is to achieve is cut off and the engine to the power transmission, guaranteed that the automobile starts smoothly
2、, ensure drive system when the shift work smoothly and limit the transmission system to withstand the maximum torque, prevent the transmission system overload. Diaphragm spring clutch is in recent years in the vehicle and light vehicle used in a clutch, the torque capacity of large and relatively st
3、able, convenient operation, good balance, can be mass production, and the research on it has become more and more important. Keywords: diaphragm spring clutch;Diaphragm spring clutch overviewDiaphragm spring clutch is in recent years in the car and light truck used a clutch. Because of its as a pres
4、sure spring, can also play the separation lever effect, whereby the clutch in order to simplify the structure, quality reduction, and remarkably reduce the axial size of clutch. Secondly, as a result of diaphragm spring and pressure with the circumferential contact, so that uniform distribution of p
5、ressure. In addition due to the diaphragm spring with nonlinear elastic properties, it can be in the driven disc friction plate abrasion, spring can still reliably transfer the torque of the engine, without causing slip away from. Clutch, the clutch pedal manipulation of light, reduce the labor inte
6、nsity of the driver. In addition, because of the diaphragm is a symmetric parts, good balance, at high speed, the pressing force reducing rarely, but the week arranged elastic clutch at high speed, due to the centrifugal force will generate transverse bending, spring severe drum, thereby reducing th
7、e pressure plate pressure, thereby causing the clutch to transmit torque capacity. As can be seen, for light diaphragm spring clutch design research for the improvement of automobile clutch performance in all aspects has very important significance.As the hold-down spring called diaphragm spring, is
8、 made of spring steel stamped, with no bottom plate shape of the truncated cone shaped thin wall diaphragm, and the small end surface on a plurality of radial groove, to form an elastic lever, while the remaining slots cut end truncated conical part is a spring action. Diaphragm spring are arranged
9、on the both sides of the supporting ring, and the latter by means of a fixed on a clutch cover some ( radial grooves cut in half number of rivets to install location ). When the clutch cover bolt fixed to the flywheel, the flywheel clutch cover to the rear support ring, diaphragm spring to generate
10、elastic deformation, the apex angle of the cone becomes large, and even almost flattened diaphragm spring. At the same time the larger end of the diaphragm spring pressure plate pressing force generated on the clutch is in the coupling. When the clutch is disengaged, the separation bearing forward d
11、iaphragm spring pressure before the supporting ring as a fulcrum of reverse tapered transition, so that the diaphragm spring after the shift, and by separating the hook pulling the pressure shift clutch. Diaphragm spring clutch has many advantages: first of all, as a result of the diaphragm spring w
12、ith nonlinear characteristic, therefore the design of the friction plate abrasion, spring pressure is nearly constant, and can reduce the separation when the clutch pedal force, make the manipulation of light; secondly, diaphragm spring clutch mounted position on the center line of the shaft are sym
13、metrical, so the pressing force actually from the influence of the centrifugal force, stable performance, balance or; furthermore, diaphragm spring itself and pressing spring and separation of the clutch lever effect, simple structure, less number of parts, the quality decreases obviously shortens t
14、he axial dimension; in addition, the diaphragm spring and the pressure plate is the entire circumferential contact, so that the pressure uniform distribution, good contact friction friction plate, uniform, easy to achieve good ventilation and cooling.Pull type diaphragm spring clutch has the advanta
15、gesCompared with push, pull type diaphragm spring clutch has many advantages: a middle supporting components, and do not support ring or only a supporting ring, the structure is simple, compact structure, fewer parts, quality less; pull type diaphragm spring is central and the platen press platen si
16、ze in the same conditions the larger diameter diaphragm spring, improves the pressing force and the ability to transfer torque, and does not increase the pedal force, in the transmission of the same torque, can use the small size structure; in the joint or separate state, the clutch cover deformation small, large stiffness, higher separation efficiency; pull leverage ratio greater than push-down lever ratio, and th
