【正文】 15(mm)； 基本額定動(dòng)載荷 C=31500 (N)； 本科生畢業(yè)設(shè)計(jì)（論文） 14 基本額定靜載荷 Co=46000 (N)； 極限轉(zhuǎn)速 (油 ) nlimy=7000 (r/min)； 四、計(jì)算軸承受力 軸承 1 徑向支反力 Fr1= (N)； 軸承 1 軸向支反力 Fa1= (N)； 軸承 2 徑向支反力 Fr2= (N)； 軸承 2 軸向支反力 Fa2= (N)； 五、計(jì)算當(dāng)量動(dòng)載荷 當(dāng)量動(dòng)載荷 P1= (N)； 當(dāng)量動(dòng)載荷 P2= (N)； 六、校核軸承壽命 軸承工作溫度 T==120 (℃ )； 軸承壽命 L10=1484 (10^6 轉(zhuǎn) )； 軸承壽命 Lh=31162 (h)； 驗(yàn)算結(jié)果 Test=合格 。=15000 (h)； 作用點(diǎn)距離 L=84 (mm)； Fr 與軸承 1 距離 L1=58 (mm)； Fr 與軸心線距離 La= (mm)； 溫度系數(shù) ft=1； 潤滑方式 Grease=油潤滑 ； 三、選擇軸承型號(hào) 軸承類型 BType=圓錐滾子軸承 ； 軸承型號(hào) BCode=32908； 軸承內(nèi)徑 d=40 (mm)； 軸承外徑 D=62 (mm)； 軸承寬度 B=15(mm)； 基本額定動(dòng)載荷 C=31500 (N)； 基本額定靜載荷 Co=46000 (N)； 極限轉(zhuǎn)速 (油 ) nlimy=7000 (r/min)； 四、計(jì)算軸承受力 軸承 1 徑向支反力 Fr1= (N)； 本科生畢業(yè)設(shè)計(jì)（論文） 16 軸承 1 軸向支反力 Fa1= (N)； 軸承 2 徑向支反力 Fr2= (N)； 軸承 2 軸向支反力 Fa2= (N)； 五、計(jì)算當(dāng)量動(dòng)載荷 當(dāng)量動(dòng)載荷 P1= (N)； 當(dāng)量動(dòng)載荷 P2= (N)； 六、校核軸承壽命 軸承工作溫度 T==120 (℃ )； 軸承壽命 L10=18597 (10^6 轉(zhuǎn) )； 軸承壽命 Lh=269527 (h)； 驗(yàn)算結(jié)果 Test=合格 。 本科生畢業(yè)設(shè)計(jì)（論文） 18 第四章 主要零件加工工藝過程 取力器二軸的加工工藝過程 取力器二軸加工工藝 毛坯：棒材。 工序： 10 銑兩端面； 20 擴(kuò)孔（φ 59孔）； 30 粗車外圓（φ 101 部分，φ 80 部分）； 40 半精車外圓（φ 101 部分）； 50 車槽（φ 65寬 2）； 60 車槽（φ 71寬 ）； 70 中間檢驗(yàn)； 80 滾齒（外齒輪）； 90 滾 齒（內(nèi)齒圈）； 100 半精車內(nèi)孔（φ 62 孔）； 110 倒圓角 ； 本科生畢業(yè)設(shè)計(jì)（論文） 20 120 中間檢查； 130 熱處理； 140 磨內(nèi)孔（φ 62 孔）； 150 最終檢驗(yàn)。 10 粗車外圓； 20 銑端面； 30 銑大端兩平面； 40 半精車外圓； 50 鉆孔（φ 6孔）； 60 磨外圓； 70 銑 內(nèi)球面（ ）； 80 去毛刺，修正； 90 最終檢驗(yàn)。 本科生畢業(yè)設(shè)計(jì)（論文） 23 零件材料的選擇 齒輪材料選擇 齒輪主要的 用于各種齒輪傳動(dòng)裝置，以防止齒面磨損、擦傷、燒結(jié)等，延長其使用壽命，提高傳遞功率效率。此外， 20 CrMnTi 還具有較好的淬透性，由于合金元素鈦的影響，故在滲碳后可直接降溫淬火。 良好的加工性 ,特加工變形微小 ,抗疲勞性能相當(dāng)好 。 在灰口鐵中，由于片狀石墨的存在使其抗拉強(qiáng)度和塑性大大低于鋼材，但片狀石墨對(duì)抗壓強(qiáng)度和硬度影響不大，仍然接近于鋼材。 變速器中潤滑油高度一般到變速器高度三分之二左右，取力器側(cè)置，所以取力器均在潤滑油中。 利用已知條件，將取力器各個(gè)重要尺寸計(jì)算出來，從實(shí)際出發(fā)，考慮到經(jīng)濟(jì)性，使用性，來設(shè)計(jì)此型號(hào)的取力器。結(jié)構(gòu)緊湊，操作輕便，良好的經(jīng)濟(jì)性和動(dòng)力性。在此再一次感謝王老師，感謝您無私的付出，感覺您悉心的指導(dǎo)，獻(xiàn)上我真摯的祝福。d7=28。 bbo=25*pi/180。a2=90。 6=189。z2=29。 Tn=Temax/z1*z2 M=sqrt(Mc^2+Ms^2+Tn^2)。 t=16*T/(pi*D^3)。 f=sqrt(fc^2+fs^2) 2 齒輪校核程序 Temax=450*10^3 z1=23。 y2=。 zw=[z1] zzw=[z3]。 yw=[y1] yzw=[ y3]。 本科生畢業(yè)設(shè)計(jì)（論文） 30 k1=1. 5。%重合度系數(shù) aaaa=[]。 a=*pi/180。 dzzw=m*zzw。 rz=.*dz。 rbw=.*dbw。 bzw=m*kczw。 light, microalso accounted for 22%. Since 2020, the major automobile factory chassis have special focus on the production and sales, private sales of motor vehicle chassis of the total sales of more than 60%. Modified after the rain as the depot is located in the Chunsun. Special Purpose Vehicle involved in many industries, such as construction, sanitation, environmental protection, landscaping, electricity, munications, fire protection, national defense, airports, financial as well as all types of mercial transportation. At present, China has dedicated more than 200 types of motor vehicles, more than 1000 varieties. In short, the Special Purpose Vehicle market prospects, the market access of Power Special Purpose Vehicle with the market39。 the liberation of car only spline interface to connect to the access edge truck browser. Far can not meet the needs of a variety of dedicated devices. Modified to fit the advantages of the depot, that is a dedicated device. A converted small depot in the production of dozens of units, hundreds more cars, not the ability and energy to produce a dedicated device adapted to take power, and can only rely on the chassis parts and ponents manufacturers. Production gearbox manufacturers, due to take the necessary force varieties, specifications, requirements vary, with the total number less, there is no volume, value and small, good production. No attention to the gearbox plant, large quantities only in high universality of the dump truck from a limited ability to make a device changes, or modification to the depot itself, lead to a reduction in functionspecific devices. For example, check our low speed, power shortage, special features, such as defects in 本科生畢業(yè)設(shè)計(jì)（論文） 33 action a long time. In order to achieve satisfaction with the special features, modification depot looking for some manufacturers have taken power, and the end result of a small number of varieties, the difference between input and output, and profit do not want to do, or just can not do quality assurance. There is also a factor, the modern automobile products to speed up the rate of replacement, the engine power train, gearbox update soon, two or three years there is the introduction of new products, check our updated browser, not a professional production from a small manufacturer of Power can not keep up the pace of development. It is understood that before there is a check of Power Research Institute, Hubei Automotive Gear Factory is a subsidiary called Yunmeng from the Institute of Power, a very high reputation at the time, only a country, after carrying out the reform disappeared. There are a number of small businesses supporting the depot for the conversion from power devices are in a certain area, supporting the production of a single species, there is no scale of imitation is only slightly modified gearbox factory products to adapt to several models. Because it is imitation, not an accurate transmission of technical parameters, such as taking power away from the center of the gear, check our gear parameters, installation size, resulting in power can not take the normal work of poor quality, short life and even give rise to transmission fight gear tooth, affecting the normal use of the gearbox. All in all, check our product is a dedicated device such vehicle chassis with a dedicated device convergence an important part of an essential, as species, quantity, value and other factors, chassis manufacturer with a dedicated depot do not want more input, so that there a business, requires the development of a professional third party