摩托车气囊式后减震器设计

机械设计制造及其自动化论文，论文编号:JX1027  论文字数:12170.页数:28

摘要
 摩托车减震器的种类多样化，其作用便是迅速衰减摩托车震动，改善摩托车行驶平顺性，由此，减震器的好坏及其重要，也是一辆摩托车档次的体现，一款出色的减震器，可以提高摩托车操纵性和稳定性，减低车身部分载荷，延长摩托车使用寿命。
 本文简要介绍了现今摩托车减震器的几种类型，便重点介绍了气囊式后减震器，这种减震器利用气囊里面的高压氮气的回位功能，使得减震效果更明显，主要包括液压缸、活塞、活塞杆、上下连接头、减震弹簧、导向座、阻尼阀片及油封，在油缸上端与上连接头之间，固定连接有气囊壳，其内腔与液压缸内腔相连通，在气囊壳内腔装有充气气囊，利用里面的高压氮气，液压缸下腔的油液能够迅速阻止活塞的下移，既迅速阻止了减震弹簧的恢复弹升，使减震弹簧缓慢回升，减小了减震器对摩托车及其上的骑乘人员的冲击，使减震器的减震效果更为理想，同时也减小了对摩托车造成的损害。
 与此同时，根据本课题所给的参数要求，在查阅了大量相应参考文献的基础上，确定了包括减震器阻尼系数等关键系数的选型；减震器大体尺寸的确定；以及减震弹簧及其活塞环的设计计算。最后通过计算并结合文献，还对活塞杆的稳定性进行了校核，并绘制了相应的装配图与零件图。本次设计主要是进行气囊式减震器结构的选型及其重要零件的校核计算，以此达到加深对气囊式减震器的了解的目的。
 关键词：减震器  摩托车  气囊式减震器  减震弹簧

Abstract
 Diversify the types of motorcycle shock absorber, and its role in the rapid attenuation of motorcycle shock is to improve the smooth running of a motorcycle, which, good or bad shock absorbers and their importance is also the embodiment of the grade of a motorcycle, a excellent shock absorber section can be improved maneuverability and stability of motorcycle, car body parts to reduce the load, extend the life of a motorcycle.
 This paper introduces the present-day types of motorcycle shock absorber, it focuses on the post-shock absorber-type airbags, which make use of air inside the shock absorber of the high-pressure nitrogen-bit features to make more obvious the effect of damping, the main including tanks, piston, piston rod, upper and lower connector, shock absorber spring-oriented sets of regulators and the oil seal in the fuel tank on top and between the connector and fixed connections are airbag shell, the cavity with tanks cavity connected to pass, in the shell cavity balloon inflated with air, using high-pressure nitrogen gas inside, the fuel tank under the oil chamber to quickly stop the downward movement of the piston, both stop the rapid recovery of the shock absorber spring or shells, so that damping spring slow recovery, reducing the shock absorber of a motorcycle riding on the staff and the impact of the shock absorber damping effect so that more desirable, but also reduces the damage caused to the motorcycle.
 At the same time, under the subject to the parameters of the request, access to a large number of the corresponding basis of reference to determine the shock absorber damping, including the selection of the key factors; shock absorber performance evaluation; as well as the damping Spring Design and Calculation of their airbags. Finally, through the combination of calculated and literature, focusing on the hydraulic cylinder design and calculation, and the mapping of the corresponding parts of assembly drawings and plans. The airbag is designed to shock absorber damping coefficient calculation and the choice of damping spring, hydraulic cylinder design and calculation in order to achieve better understanding of airbag-type understanding of the purpose of shock absorber.
Key words: Shock Absorber     Motorcycle    Balloon-type shock absorber
Damping spring
目 录
摘要 i
Abstract ii
目 录 iii
第一章 摩托车减震器应用现状及设计思路 1
1.1 摩托车减震器行业的现状及发展 1
1.1.1摩减行业的发展现状 1
1.1.1.1摩减行业主要存在的问题 1
1.1.1.2 摩减企业面对的市场状况 1
1.1.1.3 摩减企业开拓新市场困难 2
1.1.2 摩减行业的发展 2
1.2 减震器设计思路及方法 3
1.2.1现有减震器的设计方法 3
1.2.2 本文设计思路及方法 3
第二章 后减震器选型及功能原理分析 5
2.1 后减震器的选型 5
2.1.1 双弹簧减震器 5
2.1.2 水平式后减震器 6
2.2 后减震器功能原理分析 7
2.2.1 活塞杆组件的功能原理分析 8
2.2.2 气囊选材及功能 8
第三章 后减震器主要结构设计计算 9
3.1靡托车减展器的主要结构参数 9
3.1.1基长 9
3.1.2工作行程 9
3.1.3吊环型式及尺寸 10
3.2 减震器的主要参数设计 11
3.2.1工作缸筒 11
3.2.2活塞杆 12
3.3 活塞环设计计算 12
3.3.1活塞环的作用原理与工况要求 12
3.3.1.1活塞环的作用 12
3.3.1.2活塞环密封原理 12
3.3.1.3 摩托车减震器活塞环正常使用工况 13
3.3.2活塞环选材设计 13
3.3.2.1选材原则 13
3.3.2.2几种WJ活塞环常用材料分析 13
3.3.3塑料活塞环结构参数设计 14
3.3.3.1活塞环厚度S的设计 15
3.3.3.2 活塞环轴向高度h的设计 15
3.3.3.3 切口宽C的设计 15
第四章 后减震器关键部位设计校核 16
4.1 减震弹簧设计 16
4.2 活塞杆稳定性校核 17
第五章 总结 19
致 谢 20
参考文献 21

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