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At the moment, the sky is dark, the。嫌惡過(guò)自己的怯懦,最終卻發(fā)現(xiàn)有很多 緣分 ,有很多錯(cuò)過(guò),好像冥冥之中真的已經(jīng)注定。想要的,不想要的,界限明確,好像沒(méi)有什么可以撼動(dòng)自己。 A person39。t remember his appearance. 童年時(shí),覺(jué)得壓歲錢(qián)和新衣服是過(guò)年必備,但是隨著年齡的推進(jìn),會(huì)越來(lái)越發(fā)現(xiàn),那些東西根本就可有可無(wú);初中時(shí),以為要有一場(chǎng)暗戀才意味著真正的成長(zhǎng),但三年過(guò)去后,自己心平氣和的寫(xiě)同學(xué)錄 第 27 頁(yè) 共 29 頁(yè) 的時(shí)候,突然就發(fā)現(xiàn)是不是真正的成長(zhǎng)了,好像并沒(méi)有那么重要了;然后到了高中,覺(jué)得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個(gè)句點(diǎn),但畢業(yè)晚會(huì)的時(shí)候最終還是被梗塞在了咽喉,后來(lái)再次站在他曾經(jīng)揮汗如雨的球場(chǎng),看著他投過(guò) 籃球的球框時(shí),突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。 Then in high school, think don39。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。二十年的人生軌跡深深淺淺,突然就感覺(jué)到有些事情,非做不可了。或許是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過(guò)成了同一天的樣子;或許是追溯過(guò)去,對(duì)自己那些近乎偏執(zhí)的怪異信念的醒悟,這些天以來(lái),思緒一直很凌亂,在腦海中不斷糾纏。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。s governing body, has also ordered an immediate investigation into the referee39。s about how he felt and I would like to speak to him first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans during City39。s 150th anniversary celebrations and will attend City39。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lack of) air up there Watch mCayman Islandsbased Webb, the head of Fifa39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. 第 26 頁(yè) 共 29 頁(yè) If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。 同時(shí)向幫助我的各位同學(xué)表示深深的謝意!謝謝大家! 再次向楊瑞軍老師致以深深的謝意! 第 25 頁(yè) 共 29 頁(yè) 參 考 文 獻(xiàn) [1] 趙如福 .金屬機(jī)械加工工藝人員手冊(cè) .第 三 版 .上海 : 上海科學(xué)技術(shù) 出版社, 1990. [2] 徐灝 .機(jī)械設(shè)計(jì)手冊(cè) .北京: 機(jī)械工業(yè) 出版社, 1991. [3] 龔桂義 .機(jī)械零件課程設(shè)計(jì)手冊(cè) .北京:人民教育出版社 , 1980. [4] 楊黎明 . 機(jī)械零件設(shè)計(jì)手冊(cè) .北京: 國(guó)防工業(yè)出版社 , 1986. [5] 蔡春源 .新編機(jī)械設(shè)計(jì)手冊(cè) .沈陽(yáng) : 遼寧科學(xué)技術(shù) 出版社, 1993. [6] 北京農(nóng)業(yè)工程大學(xué) . 農(nóng)業(yè)機(jī)械學(xué)(下冊(cè)) .北京: 中國(guó)農(nóng)業(yè)出版社出版, 1993. [7] 農(nóng)業(yè)機(jī)械產(chǎn)品樣本 .北京:機(jī)械工業(yè)出版社出版, 1991. [8] 鎮(zhèn)江農(nóng)學(xué)院 . 農(nóng)機(jī)手冊(cè)(下) .上海 : 上海人民出版社出版 , 1980. [9] 機(jī)械工程手冊(cè) .北京 : 機(jī)械工業(yè)出版社出版 , 1986. [10] 成大先,機(jī)械設(shè)計(jì)手冊(cè)(第三版)第四卷:化學(xué)工業(yè)出版 社 .1994 [11] 楊可楨 ,程光韻 .機(jī)械設(shè)計(jì)基礎(chǔ) .北京:高等教育出版社 .1990. [12] 濮良貴,紀(jì)名剛 .機(jī)械設(shè)計(jì) .第 7 版 .北京:高等教育出版社 .2021. [13] 朱龍根 .簡(jiǎn)明機(jī)械零件設(shè)計(jì)手冊(cè) .北京:機(jī)械工業(yè)出版社 .2021 [14] 機(jī)械制圖 .第 4 版 .北京:高等教育出版社 .2021 [15] 吳宗澤 .機(jī)械實(shí)際實(shí)用手冊(cè) .北京:化學(xué)工業(yè)出版社 .1999. [16] 廖念釗,莫雨松 .互換性與技術(shù)測(cè)量 .北京:中國(guó)計(jì)量出版社 .2021. [17] 陳秀,嚴(yán)國(guó)良 .機(jī)械設(shè)計(jì)課程設(shè)計(jì)圖冊(cè) .北京: 高等教育出版社 .2021. g an employment tribunal claim Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。楊瑞軍老師提供了大量的設(shè)計(jì)資料和數(shù)據(jù),以及大量時(shí)間的直接指導(dǎo),使本人順利完成了此次設(shè)計(jì)。此外,此次設(shè)計(jì)培養(yǎng)了我正確的設(shè)計(jì)思想和正確的思維方法、嚴(yán)謹(jǐn)?shù)目茖W(xué)態(tài)度和獨(dú)立工作的能力,查閱和利用技術(shù)資料的能力,綜合分析和解決問(wèn)題的能力等等,我很感謝學(xué)校 由于水平有限,且實(shí)踐不足,設(shè)計(jì)中一些問(wèn)題和錯(cuò)誤在所難免,懇請(qǐng)諸位老師諒解,并給予批評(píng)指正。 進(jìn)行工 程設(shè)計(jì)是一項(xiàng)艱苦的,但頗有收獲的學(xué)習(xí)過(guò)程。能大大減輕農(nóng)民勞動(dòng)強(qiáng)度,有利于搶趕農(nóng)時(shí)季節(jié),促進(jìn)農(nóng)民致富,推動(dòng)農(nóng)業(yè)的發(fā)展。與同類(lèi)產(chǎn)品比,結(jié)構(gòu)緊湊,性能優(yōu)良,操作輕便,安全可靠,且不占場(chǎng)地,搬運(yùn)存放方便。夾帶在穗軸中的部分子粒經(jīng)過(guò)篩孔漏下。脫下的子粒大部分通過(guò)凹板孔,由子?;寤鰴C(jī)外。在楊瑞軍老師和其他各位老師的指導(dǎo)以及同學(xué)的幫助下,經(jīng)過(guò)查閱大量資料,我反復(fù)計(jì)算修改才完成了本次設(shè)計(jì)。 第 23 頁(yè) 共 29 頁(yè) 結(jié) 論 在大學(xué)生涯即將結(jié)束時(shí)進(jìn)行的畢業(yè)設(shè)計(jì),是一次全面運(yùn)用所學(xué)專(zhuān)業(yè)知識(shí)。修復(fù)后的脫粒機(jī)必須經(jīng)過(guò)平衡試驗(yàn),正常后方可使用。機(jī)架斷裂、機(jī)罩變形殘缺等一定要焊補(bǔ)牢固。 軸承缺油,轉(zhuǎn)動(dòng)不靈活或有明顯的軸向竄動(dòng)、徑向晃動(dòng),必須認(rèn)真保養(yǎng)和修復(fù)正常后才能使用。作業(yè)中應(yīng)裝上防火帽,并隨時(shí)清除積炭。 玉米脫粒機(jī)的維修保養(yǎng) 一般工作 5— 6h 后應(yīng)停機(jī)休息一下,并對(duì)脫粒機(jī)動(dòng)力進(jìn)行檢查。 6.工作時(shí),操作手應(yīng)站在喂人口正前方,喂入量要均勻,當(dāng)喂人量過(guò)大或秸稈過(guò)濕時(shí),不要強(qiáng)行推送。 4.脫粒機(jī)防護(hù)罩安裝要牢固,破損的應(yīng)及時(shí)修理,其鐵皮厚度不應(yīng)小于 1. 2 毫米,傳動(dòng)皮帶要設(shè)立防護(hù)罩或擋板,以防皮帶飛出傷人。 2.對(duì)各轉(zhuǎn)動(dòng)部件要加油保養(yǎng),各部緊固螺釘要牢靠,滾筒旋轉(zhuǎn)方向應(yīng)和上蓋所標(biāo)箭頭方向一致。則 3 2 4 5 1 4 ()( 11111 ???????? arp FYFXfP N 0 1 ()( 222221 ???????? arp FYFXfP N ( 4) 驗(yàn)算軸承壽命 第 21 頁(yè) 共 29 頁(yè) 因?yàn)?21 PP? ,所以按軸承 1 的受力大小驗(yàn)算 )(41260 10)(6010 36316 ????? PCnL h h hL? 所以所選的軸承滿(mǎn)足要求。再計(jì)算 ???? rd FeF N ???? rd FeF N 4 5 5 1 9 41 ???aF N ?aF N ??CF a ??CFa 兩次計(jì)算的0CFa 值相差不大,因此確定 ?e , ?e , ?aF N, ?aF N。 (1) 求兩軸承受到的徑向載荷 21 rr FF和 將軸系部件受到的空間力系分解為垂直面和水平面兩個(gè)力系。查《簡(jiǎn)明機(jī)械零件設(shè)計(jì)手冊(cè)》 P495 得其基本參數(shù)如下表所示: 軸承代號(hào) 尺寸( mm) 基本額定載荷( kN) 極限轉(zhuǎn)速( r/min) d D B rC rC0 脂潤(rùn)滑 油潤(rùn)滑 7206C 30 62 16 36 9000 軸承的校核 假設(shè)軸承每日 8h 工作,工作 15 年,一年 300 天工作日。因?yàn)檫@種軸承主要承受徑向載荷也可用來(lái)承受徑向和軸向聯(lián)合負(fù)荷,在轉(zhuǎn)速很高不宜采用推力軸承時(shí),也可以承受純軸向載荷。頭部應(yīng)裝有止推軸承,以承受由于運(yùn)送物料的阻力所產(chǎn)生 的軸向力,一般放在輸送物料的前方。 根據(jù)容量和轉(zhuǎn)速,由 有關(guān)手冊(cè)查出有三種適用的電動(dòng)機(jī)型號(hào),因此有四種傳動(dòng)比方案,綜合考慮電動(dòng)機(jī)和傳動(dòng)裝置的尺寸、重量、價(jià)格和帶傳動(dòng)的傳動(dòng)比,選定電動(dòng)機(jī)型號(hào)為Y112M4。 第 18 頁(yè) 共 29 頁(yè) ② 選擇電動(dòng)機(jī)的容量 電動(dòng)機(jī)到運(yùn)輸帶的傳動(dòng)總效率為 5423421 ?????? ??????