The design of motorcycle before the shock absorber
Abstract : Dampers also known as buffer , is the installation of the hoisting device an important component . Motorcycle hoisting device will not only decide the ride comfort, but also to determine their performance movement of important parts . And the function of a shock absorber is easing due to the road surface uneven, the effect of vibration attenuation motorcycle; improveing ride comfort, Protection of cargo; reduceing the stress of the body operation, increaseing the life expectancy of components; strengthen tire adhesion. helping manipulation and stability of Motorcycle.
In this paper , motorcycle before shock absorber and the overall program analysis and design is the main content. Useing hydraulic shock absorber, its itinerary to 50 mm . Mainly through the spring damping, supplemented dampers. Damping spring design using modular spring,the combination of spring two such different pitchs pitch cylindrical spring,. In the normal range of vibration, soft spring, when the vehicles to be shocked, springs stiffen and have sufficient capacity to absorb the impact energy . Damper function use the fluid through the Absorption of shock pole on the hole, the gap viscous resistance . And compared to solid motorized damping, the use of liquid turbulent resistance dampers, to a certain damping force and absorb energy conditions, Quality small, size small, and the lack of scale with arbitrary requirements damping force on the relationship between the pace of work and so on.
In the process of designing,there are a note On the before shock absorber working principle , and to identify the major components of the work of the relevant parameters, Respectively damping springs, which includes determination and free height of the damping spring, Damping hole quantity and determination for the design and rehabilitation of resistance
Keywords :before the shock absorber damping spring damper design
目 錄
1 緒論………………………………………………………………………………(1)
2 總體方案設(shè)計(jì)
2.1 研究?jī)?nèi)容及實(shí)驗(yàn)方案…………………………………………………………(3)
2.2 工作原理………………………………………………………………………(3)
3 摩托車減震器的功能和結(jié)構(gòu)形式
3.1 減震器的功能…………………………………………………………………(5)
3.2 摩托車前減震器的結(jié)構(gòu)形式…………………………………………………(5)
3.2.1 彈簧空氣式…………………………………………………………………(5)
3.2.2 單筒伸縮式…………………………………………………………………(5)
3.2.3 雙筒伸縮式…………………………………………………………………(6)
3.2.4 油—汽伸縮式………………………………………………………………(6)
3.2.5 防下沉伸縮式前減震器……………………………………………………(7)
4 摩托車后減震器的主要特性
4.1 摩托車減震器的彈簧特性……………………………………………………(8)
4.1.1 摩托車懸掛裝置的撓度……………………………………………………(8)
4.1.2 摩托車懸掛裝置的理想彈簧特性…………………………………………(9)
4.2 摩托車減震彈簧的材料及工藝………………………………………………(10)
4.2.1 彈簧材料的種類……………………………………………………………(10)
4.2.2彈簧制造工藝………………………………………………………………(11)
4.3 摩托車減震器的阻尼特性……………………………………………………(11)
4.3.1 阻力——速度特性…………………………………………………………(11)
4.3.2 阻力——位移特性…………………………………………………………(13)
4.4 摩托車減震器的阻尼力………………………………………………………(14)
4.4.1 復(fù)原行程阻尼力計(jì)算………………………………………………………(14)
4.4.2 壓縮行程阻尼力計(jì)算………………………………………………………(16)
4.4.3 減震器額定阻力……………………………………………………………(17)
4.4.4 示功圖………………………………………………………………………(17)
5 摩托車后減震器的結(jié)構(gòu)設(shè)計(jì)
5.1 減震器的主要零件結(jié)構(gòu)參數(shù)…………………………………………………(19)
5.1.1 工作缸徑的確定……………………………………………………………(19)
5.1.2 貯油筒徑的確定……………………………………………………………(19)
5.1.3 減震器基長(zhǎng)的確定…………………………………………………………(20)
5.1.4 工作行程……………………………………………………………………(20)
5.2 摩托車后減震器主要零件的結(jié)構(gòu)設(shè)計(jì)………………………………………(21)
5.2.1 彈簧的結(jié)構(gòu)尺寸設(shè)計(jì)和計(jì)算………………………………………………(21)
5.2.2 減震彈簧按實(shí)際工作狀態(tài)繪圖的優(yōu)點(diǎn)……………………………………(24)
5.2.3 減震器減震桿桿的設(shè)計(jì)……………………………………………………(24)
5.2.4 活塞環(huán)設(shè)計(jì)計(jì)算……………………………………………………………(26)
5.2.5 貯 油 筒……………………………………………………………………(29)
5.2.6 導(dǎo)向套(襯套)……………………………………………………………(30)
5.2.7 油封…………………………………………………………………………(31)
6 摩托車減震器主要零部件的組裝工藝
6.1 裝配工藝原則…………………………………………………………………(34)
6.2 裝配工藝流程…………………………………………………………………(34)
6.2.1 活塞、活塞桿的裝配………………………………………………………(34)
6.2.2 前減震器總成裝配…………………………………………………………(35)
7 摩托車后減震器的檢驗(yàn)與質(zhì)量評(píng)定
7.1 出廠檢驗(yàn)………………………………………………………………………(36)
7.2 減震器型式檢驗(yàn)………………………………………………………………(36)
7.3 減震器質(zhì)量等級(jí)評(píng)定方法……………………………………………………(37)
8 總結(jié)………………………………………………………………………………(38)
參考文獻(xiàn)……………………………………………………………………………(39)
致 謝……………………………………………………………………………(40)