自動機械設(shè)計 冷霜自動灌裝機說明書

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1、 SHANDONG ＵＮＩＶＥＲＳＩＴＹ?。希啤。裕牛茫龋危希蹋希牵? 自動機械設(shè)計課程設(shè)計說明書 冷霜自動灌裝機總體設(shè)計 學 院 ： 農(nóng)業(yè)工程與食品科學學院 專 業(yè) ： 農(nóng)業(yè)機械化及其自動化 班 級 ： 姓 名 ： 學 號 ： 指導教師 ： 目錄 1 工作原理及工藝動作過程 - 2 -

2、 2 原始數(shù)據(jù)及設(shè)計要求 - 2 - 3 設(shè)計過程 - 2 - 〔一〕運動循環(huán)圖： - 2 - 〔二〕機構(gòu)的初步選型 - 6 - 〔三〕冷霜自動灌裝機總體布置圖 - 8 - 〔四〕運動尺寸計算及分析： - 10 - 1〕電動機的選擇： - 10 - 2〕行星輪系傳動比的計算： - 11 - 3〕V帶傳動的設(shè)計及參數(shù)選擇： - 12 - 4〕軸的相關(guān)計算： - 13 - 5〕執(zhí)行構(gòu)件相關(guān)參數(shù)確實定： - 14 - 4參考書目： - 15 - 5心得體會 - 15 - 粘液自動灌裝機設(shè)計說明書 1 工作原理及工藝動作過程 粘液灌裝機是通過出料活塞干上下

3、往復運動實現(xiàn)冷霜灌裝入盒內(nèi)。其主要工藝動作有： 1） 將空盒送進五工位盤，利用轉(zhuǎn)盤間歇運動變換不同工位； 2） 在灌裝工位上向空盒灌入粘液； 3） 在貼錫紙工位上粘貼錫紙〔利用錫紙下降〕； 4） 在蓋盒蓋工位上將盒蓋壓下； 5） 送出成品。 2 原始數(shù)據(jù)及設(shè)計要求 1） 粘液灌裝機的生產(chǎn)能力：30盒／min。 2） 空盒尺寸：直徑D=30～50mm,高度h=10～15mm。 3） 工作臺面與地面的距離約1100～1200mm。 4） 要求機構(gòu)的結(jié)構(gòu)簡單緊湊，運動靈活可靠，易于制造。 3 設(shè)計過程 1) 按工位動作要求擬定運動循環(huán)圖。 四個根本運動： 1. 輸送帶

4、的連續(xù)運動； 2. 五工位盤的間歇轉(zhuǎn)動〔通過槽輪機構(gòu)實現(xiàn)〕; 3. 灌裝頂桿的往復運動〔通過凸輪機構(gòu)〕; 4. 貼錫、壓蓋壓桿往復運動。 5. 送出成品。 〔一〕運動循環(huán)圖： 運動循環(huán)圖的設(shè)計: a) 粘液 灌裝、貼錫、加蓋工藝流程： 1) 空盒通過輸送帶至五工位盤位置1。 2) 五工位盤做間歇轉(zhuǎn)動，每次轉(zhuǎn)動72°，轉(zhuǎn)動時其他機構(gòu)不執(zhí)行動作。 3) 當轉(zhuǎn)盤停止時，灌裝頂桿上升至工位2進行灌裝，同時貼錫、加蓋壓桿遠休結(jié)束后進行工藝動作。 4) 灌裝機構(gòu)到達頂端完成灌裝后回到初始位置，同時貼錫、加蓋桿升到高位，一次循環(huán)結(jié)束。 b) 工藝過程的執(zhí)行構(gòu)件： 1) 送料機構(gòu)：該

5、機構(gòu)主要是實現(xiàn)輸送帶的連續(xù)運動，把空盒送入工位，并將成品輸出。 2) 槽輪機構(gòu)：它是在軸II上通過變向連接槽輪，帶動五工位盤實現(xiàn)間歇運動。 3) 灌裝機構(gòu)：該機構(gòu)有固定在軸I上的直動推桿凸輪機構(gòu)組成，通過上下往復運動實現(xiàn)灌裝動作。 4) 貼錫、加蓋機構(gòu)：又凹槽凸輪和壓桿及壓桿上固定的貼錫、加蓋部件組成，通過上下往復運動，一次性完成兩個動作。 c) 各執(zhí)行構(gòu)件的運動協(xié)調(diào)： 1) 協(xié)調(diào)原那么：輸送帶是連續(xù)運動，且它置于五工位盤1、5工位下面，既不能于工位盤發(fā)生摩擦，也要求它不干預其它幾個機構(gòu)的完整運動，所以傳動輪尺寸要求有限制。五工位盤間歇時要實現(xiàn)三個執(zhí)行動作，設(shè)計凸輪尺寸不應(yīng)太大，各動

6、作之間應(yīng)互不影響，一個是上升、下降，一個是下降、上升，五工位盤轉(zhuǎn)動時，它們不進行任何動作。各構(gòu)件要準確定位，以免回撞到其它構(gòu)件。 定標構(gòu)件的選擇：設(shè)計時下邊兩根軸轉(zhuǎn)動同步，但轉(zhuǎn)向相反，選擇軸I為定標構(gòu)件，五工位盤開始轉(zhuǎn)動時為運動循環(huán)圖的起始點。 2) 計算機械運動循環(huán)周期： 因為生產(chǎn)率Q=60盒/min，所以周期T=60s/60=1s，此時定標構(gòu)件對應(yīng)分配軸轉(zhuǎn)角 =360°。 3) T時間個執(zhí)行構(gòu)件的行程區(qū)段： 輸送帶區(qū)段：連續(xù)傳動〔0~360°〕。 五工位盤區(qū)段：

7、五工位盤的轉(zhuǎn)動盒停歇，所占時間比： K=(z-2)/(z+2)=(6-2)/〔6+2〕=1：2，所以在一個循環(huán)周期內(nèi)，五工位盤1/3〔120°〕時間轉(zhuǎn)動，2/3〔240°〕時間停歇。 灌裝頂桿行程區(qū)段：1=120°〔停〕、2=90°〔上升〕、3=60°〔?！?、4=90°〔下降〕。 貼錫、加蓋機構(gòu)行程區(qū)段：1=120°〔?！?、2=90°〔下降〕、3=60°〔?！?、4=90°〔上升〕。 4) 繪制運動循環(huán)圖： 1. 圓周式循環(huán)圖： 2. 直線式循環(huán)圖輸 送 帶 連 續(xù) 傳 動 轉(zhuǎn) 盤 轉(zhuǎn) 轉(zhuǎn) 盤 停 止 頂 桿 停 頂 桿 上 頂 桿 停

8、頂 桿 下 壓 桿 停 壓 桿 下 壓 桿 停 壓 桿 上 ° ° ° ° ： 3. 直角坐標式循環(huán)圖 執(zhí)行機構(gòu)1：送料機構(gòu) 連 續(xù) 運 動 執(zhí)行機構(gòu)2：槽輪機構(gòu) 轉(zhuǎn) 動 停 歇 執(zhí)行機構(gòu)3：灌裝機構(gòu) 停 上 升 停 下 降 執(zhí)行機構(gòu)4：貼錫、加蓋機構(gòu) 停 下 降 停 上 升 分配軸轉(zhuǎn)角 ： 0° 120° 210° 270° 360° 執(zhí)行機構(gòu)一

9、送料機構(gòu) 執(zhí)行機構(gòu)二 槽輪機構(gòu) 執(zhí)行機構(gòu)三 灌裝機構(gòu) 執(zhí)行機構(gòu)四 粘錫，加蓋 機構(gòu) 0 90 120 180 210 270 360 〔二〕機構(gòu)的初步選型 ㈠轉(zhuǎn)盤間歇運動機構(gòu) 槽輪機構(gòu)： 優(yōu)點：結(jié)構(gòu)簡單，工作可靠，容易制造。轉(zhuǎn)位迅速，其機械效率高，故能平穩(wěn)地，間歇地進行轉(zhuǎn)位。 缺點：其運動規(guī)律不能選擇，調(diào)節(jié)性能差，在撥銷進入和脫出槽輪時會產(chǎn)生柔性沖擊，故常使用于速度要求不太高的運動中，我們所需要設(shè)計的冷霜自動灌

10、裝機中的五工位轉(zhuǎn)盤轉(zhuǎn)速為6°每秒，轉(zhuǎn)速不高，此缺點可以忽略，故比擬合理，因而選用此機構(gòu)。 ㈡空盒上升機構(gòu) 直動滾子盤形凸輪機構(gòu): 優(yōu)點：只要適當?shù)卦O(shè)計出凸輪的輪廓曲線，就可以使推桿得到各項預期的運動規(guī)律，而且機構(gòu)簡單緊湊。 缺點：凸輪廓線與推桿之間為點線接觸，易磨損，但是綜合比擬之下，這種機構(gòu)最為適宜。 ㈢貼錫紙 壓盒蓋機構(gòu) 優(yōu)點：結(jié)構(gòu)簡單，傳動精確，可靠?？蓾M足使用要求。 缺點：易磨損，制造較一般凸輪難，但是綜合比擬之下，這種機構(gòu)最為適宜。 直動滾子推桿封閉式凸輪機構(gòu)：

11、 〔三〕冷霜自動灌裝機總體布置圖 1〕主視圖 2〕左視圖 〔四〕運動尺寸計算及分析： 1〕電動機的選擇： 從機構(gòu)所要實現(xiàn)的運動要求著手。 每秒生產(chǎn)一個成品，這樣要保證五工位盤在一秒內(nèi)完成停止轉(zhuǎn)動兩個動作。 經(jīng)過考慮，在運動循環(huán)圖中，將停止時間定為2/3秒，五工位轉(zhuǎn)動的時間那么為1/3秒，五工位盤與從動槽輪同軸，有相同的運動情況，故主動撥盤轉(zhuǎn)動2/3圈所用的時間為1/3秒。它的轉(zhuǎn)速可以求出，〔2/3〕r/〔2/3〕s=1 r/s。 通過軸之間的傳速關(guān)系，不難看出，兩根主軸利用錐齒輪變向后，轉(zhuǎn)速仍為一圈每秒。再加上皮帶傳動，周轉(zhuǎn)

12、輪系兩個小系統(tǒng)的變速(它們的變速比均為5：1)，可得電動機的轉(zhuǎn)速為:1×5×5=25r/s=1500r/min。 ①電動機類型和結(jié)構(gòu)形式的選擇： 電動機主要有Y、YZ、YZR系列，無特殊需要，一般選取Y系列的三相交流異步電動機；而YZ、YZR系列一般用于頻繁啟動，制動和換向，具有較小的轉(zhuǎn)動慣量和較大的過載能力。我們所設(shè)計的冷霜自動灌裝機對于工作無特殊要求，選用Y系列三相交流異步電動機。 ②電動機功率確實定： 工作所需功率Pw=Fv/1000KW=1700*3.925/1000=6.63KW 電動機至工作機的總效率為η=η1*η2*η3=0.98*0.96*0.9

13、4=0.884 所需電動機的功率Pd=Pw/η=7.52KW。 ③電動機轉(zhuǎn)速確實定： 參考?機械設(shè)計手冊?可知，電動機在同一額定功率下有幾種同步轉(zhuǎn)速可供選用，同步轉(zhuǎn)速越高，尺寸重量越小，價格越低，且效率越高。設(shè)計時可優(yōu)先選取同步轉(zhuǎn)速為1500r/min和1000r/min的電動機，在我們的設(shè)計中，選用n=1500r/min的電動機。 ① 電動機型號確實定： 電動機確定型號時應(yīng)該滿足以下條件：P≧K*Pd KW. 查表選取Y132M-4型電動機，其具體參數(shù)如下所示 電動機型號 額定功率/KW 滿載轉(zhuǎn)速r/min 同步轉(zhuǎn)速r/min 起動轉(zhuǎn)矩 最大轉(zhuǎn)矩 電

14、動機外形尺寸/mm Y132M-4 7.5 1440 1500 2.2 2.2 515*280*315 與同類電動機比擬，選取功率為P=7.5 KW。 2〕行星輪系傳動比的計算： 2K-H行星輪系〔負號機構(gòu)〕 m=2.5 z1=40 z2=60 z3=160 =1-=- =1+=1+=5 3〕V帶傳動的設(shè)計及參數(shù)選擇： 1.確定計算功率〔KW〕： 查表得工作情況系數(shù)＝1.3 =P=1.3*7.5＝9.75KW 2.選擇帶型： 由于＝9.75KW，小帶輪轉(zhuǎn)速＝15

15、00r/min，確定選用SPZ型。 3.確定帶輪基準直徑： 查表取主動輪基準直徑＝50mm，根據(jù)公式i＝≈，從動輪基準直徑為2500mm。 驗證帶的速度V=∏/60/1000=3.925 帶的速度適宜。 4.確定窄V帶的基準長度和傳動中心距： 根據(jù)0.7〔D1+D2〕＜＜2〔D1+D2〕，初步確定中心距=550mm。 根據(jù)公式計算所需的基準長度： =2+∏/2〔D1+D2〕+/4=1589.182mm 查表選取帶的基準長度=1400mm 計算實際中心距a=+〔-〕/2=455.409mm 中心距可調(diào)范圍： =a+0.03=497.409mm

16、 =a-0.015=434.409mm 5.驗證主動輪上的包角a1： a1=180°-〔D2-D1〕/a*57.3°=154.8°>120° 主動輪上的包角適宜。 6.計算窄V帶的根數(shù)Z： 由式子知 Z=/〔+Δ〕，由條件查表得=3.26KW，Δ=0.23KW，=0.93，=0.96，于是z=3.26，取z=4根。 7.計算初拉力： =500/zV〔2.5/-1〕+q，帶入數(shù)據(jù)算得=547N。 8.計算作用在軸上的壓力Q： Q=2*zsin(a1/2)=4271N。 4〕軸的相關(guān)計算： 一、軸的測定 軸的設(shè)計包含材料，確定結(jié)構(gòu)和計算工作能力〔強度剛度震動穩(wěn)定

17、性〕等內(nèi)容。 一般步驟是： ①選擇材料，②軸徑概略計算，③結(jié)構(gòu)設(shè)計，④強度校核，⑤剛度校核，⑥震動穩(wěn)定性計〔高速轉(zhuǎn)軸〕。 Ⅰ.本系統(tǒng)的軸材料主要采用45號鋼。 它的機械性能為： 正熾熱處理， 毛坯直徑d為25～100mm， 硬度170～207， 拉伸強度限σB 600 拉伸屈服限σs 300 彎曲疲勞限σ-1 240 扭轉(zhuǎn)疲勞限τ-1 140 (N∕) Ⅱ.a.按扭轉(zhuǎn)強度進行計算: 對于實心軸，其強度條件式： =T/=〔9550**(P/n)〕/0.2 〔單位：MPa≤ []〕; 改成計算軸的直徑的設(shè)計計算公式為： d≧=×=c(mm

18、) 對于45號鋼，C=107～118〔[]=40～30 N/〕。 d≧×112=19.403 b.按扭轉(zhuǎn)剛度進行計算： Ⅲ.圓柱軸扭轉(zhuǎn)角φ: Φ=Tl/G=[9550××p/n×l]/G∏/32(rad) 取鋼的剪切彈性模量G=81000 N∕ d≥〔91～108〕 d≧[91～108](mm)=27.122mm 軸承的選擇 滑動軸承和滾動軸承都可用于支撐軸及軸上零件，以保持軸上的旋轉(zhuǎn)精度，并減少轉(zhuǎn)軸與支承之間的摩擦和磨損。滑動軸承在一般情況下摩擦損失較大，使用維護和潤滑也比擬復雜，而且對實際系統(tǒng)的分析所需啟動力矩不大，軸向尺寸小。承載能力和抗沖擊能力不必太大

19、。也沒有劇烈沖擊震動。所以選用滾動軸承。 要選擇適宜的軸承，必須知道的參數(shù)為，錐齒輪上的圓周力，徑向力，軸向力。軸頸直徑我們采用d=40mm。軸承轉(zhuǎn)速為60r/min，工作穩(wěn)定，它預期的壽命為20000小時。采用角接觸軸承，先確定軸承型號。 5〕執(zhí)行構(gòu)件相關(guān)參數(shù)確實定： 1.由于五工位要實現(xiàn)每次60°較的間歇轉(zhuǎn)動，所以，槽數(shù)設(shè)為z=6。 2.圓銷數(shù)n的選擇: 在實際工作中，我們所要到達的運動效果為在五工位盤停止轉(zhuǎn)動的時間內(nèi)完成灌霜、貼紙，壓蓋三道工序。因此，應(yīng)使停止的時間長于轉(zhuǎn)時。即保證k＜0.5，但不應(yīng)太短。假設(shè)撥盤上均布n個銷那么一周內(nèi)槽輪被播n次。假設(shè)撥盤上均布n個銷，那么一周

20、內(nèi)槽輪被撥n次，運動系數(shù)是單銷的n倍。 k=n〔1/2-1/z〕≤1 n≤2z/(z-2) 因為z已等于6，可得n=1或2或3。 當n=1時，k=1/2-1/z =1/2-1/6=1/3 當n=2時，k=2×1/3=2/3 當n=3時，k=1 出于產(chǎn)品的實際考慮，選n=1 3．應(yīng)用比擬廣泛的外槽輪〔徑向槽均布〕 4.利用書上公式，試求出加速度與角加速度的最大值。 5.計算幾何尺寸。撥盤軸的直徑d1與槽輪軸直徑d2的限制條件。 /=λ〔cosα-λ〕/〔1-2λcosα+〕 /=λ{〔-1〕sinα}/〔1-2λcosα+〕 代入求得最大值=[λ(1-λ)/(1-2λ+

21、)]=λ/1-λ λ=R/L =λ(-1) sinα/(1-2λcosα+〕。 4參考書目： 【1】 孫恒，陳作模，葛文杰.機械原理【M】.7版.北京：高等教育出版社，2006. 【2】王三民，諸文俊.機械原理與設(shè)計【M】.1版.北京：機械工業(yè)出版社，2001. 【3】尚久浩.自動機械設(shè)計【M】.2版.北京：中國輕工業(yè)出版社，2003. 【4】李柱國.機械設(shè)計與理論【M】.1版.北京：科學出版社，2003. 【5】龔溎義.機械設(shè)計課程設(shè)計指導書【M】.2版.北京：高等教育出版社，2007. 5心得體會 通過此次課程設(shè)計，使我更加扎實的掌握了有關(guān)自動機械設(shè)計方面的知識，

22、在設(shè)計過程中雖然遇到了一些問題，但經(jīng)過一次又一次的思考，一遍又一遍的檢查終于找出了原因所在，也暴露出了前期我在這方面的知識欠缺和經(jīng)驗缺乏。實踐出真知，通過親自動手制作，使我們掌握的知識不再是紙上談兵。 本次課程設(shè)計屬于計算機繪圖軟件與自動機械設(shè)計課程的綜合性結(jié)合應(yīng)用，因此我個人覺得難度比擬大，頗具挑戰(zhàn)性。經(jīng)過忙忙碌碌的一個周，我終于完成了這份作業(yè)，從中我覺得受益匪淺，還是談?wù)勎覀兊捏w會吧。 這次設(shè)計題我是做總體設(shè)計的所以對于傳動和機構(gòu)的選型也要有一定的了解，總的來說工作量比擬大。與此同時還要自學繪圖軟件 ，并且能夠熟悉掌握。做這一切都是最根本的，其實最重要的是通過這次課程設(shè)計讓我領(lǐng)悟到了一

23、種方法，一種思想，為以后相關(guān)工作打下了良好的根底。所以類似于這種作業(yè)還是應(yīng)該多去嘗試，盡管比擬繁瑣，那種成就感是很獨特的。 過而能改，善莫大焉。在課程設(shè)計過程中，我們不斷發(fā)現(xiàn)錯誤，不斷改正，不斷領(lǐng)悟，不斷獲取。最終的檢測調(diào)試環(huán)節(jié)，本身就是在踐行“過而能改，善莫大焉〞的知行觀。這次課程設(shè)計終于順利完成了，在設(shè)計中遇到了很多問題，最后在老師的指導下，終于游逆而解。在今后社會的開展和學習實踐過程中，一定要不懈努力，不能遇到問題就想到要退縮，一定要不厭其煩的發(fā)現(xiàn)問題所在，然后一一進行解決，只有這樣，才能成功的做成想做的事，才能在今后的道路上劈荊斬棘，而不是知難而退，那樣永遠不可能收獲成功，收獲喜悅，

24、也永遠不可能得到社會及他人對你的認可。 雖說是自己單獨設(shè)計，但像機構(gòu)選型和傳動系統(tǒng)設(shè)計都是我們合作完成的在設(shè)計過程中，也對團隊精神的進行了考察，讓我們在合作起來更加默契，在成功后一起體會喜悅的心情。果然是團結(jié)就是力量，只有互相之間默契融洽的配合才能換來最終完美的結(jié)果。 此次設(shè)計也讓我明白了思路即出路，有什么不懂不明白的地方要及時請教老師或查閱相關(guān)資料詢，只要認真鉆研，動腦思考，動手實踐，就沒有弄不懂的知識，實踐出真知。 〔英文版 〕 easily blame, to prevent the broken window effect. Supervise the leading c

25、adres to play an exemplary role, take the lead in the strict implementation of the < code > and < rule >, lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the

26、 daily supervision and management , strengthen supervision and inspection, from the thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. -

27、strengthening supervision, discipline inspection and supervision of cadres to set an example for compliance with the < code > and < rule > is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders,

28、 for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly establish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule o

29、f law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply with < > and < >. To firmly establish the discipline must first be disciplined, the supervisor will be subject to the supervision of "concept, and consciously safeguard and implement party compasses

30、 party, take the lead in practicing" three strict real strict, so loyal, clean, play. To be good at learning, the Constitution and the < code > as morality, politics and brought to fruition; to implement < >, do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler

31、, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is indeed the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictab

32、le things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life

33、 can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become more perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain

34、life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, but experience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no e

35、arthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not g

36、ive up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pou

37、nd foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at and deal with it. Don't always take everything back to things, and don't get into a blind alley, don't want to face, don't be narrow-minded. Poke to care, is a kind of open-minded, a free

38、 and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat people; I am not afraid of the truth to tell the best friend, I'm afraid he turned to it as a joke to tell don't 6, when we are in a positive frame of mind, you will find many g

39、ood things; and when we are in a negative state of mind, you will find many depressed things; life happy and worry, all is you of life attitude, optimistic, good luck; loss of sink, Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Th

40、ink, because good mentality decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this society read. Tired and sad, squat down, to their a hug. Because the world no one can sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can unde

41、rstand. Then you only tears to smile. 8, each people have youth, Each youth are a story, the life of the world never gets easier, I want what, wish the world all know, as has been the same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the

42、world is followed by birth, Rangrang, important thing is often the most difficult to open one's mouth, because words will reduce its importance; to let strangers people care about your life in the good things, the original is not easy 10, do not blame, do not laugh at who, also don't envy who. Like

43、a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel life is that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomforta

44、ble, and ultimately to heal themselves or their own, others may got you to comfort, but never know your heart is how wanjianchuanxin. 12, ma'am, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and a

45、n exception is better to give than to what 13, don't envy him A sum of, don't lose your life and the life, respectively is: the former is a we experienced cannot escape in a day finally will last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 14

46、, learn to smile, learn to strong, the world you know so many people, so many people and you are, you cannot change also can't let everyone like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wo

47、unding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negative emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shu

48、t up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful of tears, there is no trace of emotion, there is no gleam of hope, no desire, no action, no static, there is only one kind of downward sinking feeling, sink A murky? 6? 7

49、? 6? 7 sink? 6? 7? 6? 7 toward the bottom of the sink. 17, in some way, do not go, you will not know the other side scenery is beautiful. To you is not good, you do not mind too much, no one has an obligation to you; you learn knowledge, is you have weapons, you can start from scratch, but not unarm

50、ed; how do you treat people, does not represent how others treat you, if cannot see through this point, only inviting worry. 18, time is like a sponge in the water, as long as you are willing to squeeze, the total water is still there. Every life, after the ups and downs The best test of live, to li

51、fe, survival and continuation, do not stop the struggle in the joys and sorrows of life on the road, so that different soul to bear life beat, acceptance of suffering. 19, indifferent to heart, calmly in table, elegant and comfortable life, do not take what is so important. The pursuit will be disap

52、pointed; to be alive, you will have trouble. Life is the most afraid of what all want to care about, but also what all grasp is not firm, without scenery, separated populations, such as not to desire, all docked in the fate of the end. Why is too rigid, the natural, to go stay not to live, let go of

53、 obsession, revel is 20, if the fate of the broken Hopes of sailing, please don't despair, the coast is still, if the fate of the withered petals of the beautiful, please do not sink, the spring is still, life will always be endless trouble, please don't helpless, because they are still alive, is st

54、ill a dream, the sun still, we still. Lost, keep memories; to get, must work to; but the most important is good to cherish their own. 21, life, select the complex, is to choose the pain; choose a simple, is choose to be happy. The complex world like a Significance of pride. Hope is the ornate palac

55、e, outside people admiring the magnificent, living in the deep knowledge of living it to pay the price. Simple world as a simple log cabin outside ridiculed shabby, the heart is willing to go live to know the joy. Suffering and joy is their own choice. 22, learn how to use a single powerful heart, l

56、et the past be the past, let the future come. Life is really the end of the end of an eagle is flying wings, life is constantly pursuit. Don't miss to regret, don't wait for old just miss. Time to return, seize every moment, again painstakingly again tired also Those struggling to fly. 23, life coul

57、d not Yimapingchuan, even flat pavement, inevitably there will be a few pieces of roadblocks. Some of the rocks around the past, while others have to move it out. Just move others put the stone is very easy, because the stone from the appearance we can discern; difficult to myself to move away the h

58、eart of stone head. Leave time to spend with her, often reflect my heart, so as to remove your heart of stone. 24, everything does not have to be demanding, come to, everything does not have to care about, over the past; failing to do not frown, laugh it laugh. Results Don't demand, do to; life is a

59、 simple, calm and peaceful. Always not to choose their own path and regret, life is like a train, the scenery and then the United States will retreat, the passage of time and encounter will eventually drifting further and further away, before is always himself. 25, everyone has a weakness, weakness

60、is true humanity. That has no weakness, a shallow person. That people think there is no weakness, mostly false. Life has shortcomings, there are shortcomings is the real life. That no one regret, or childish or numbness or Self deception. It is in tolerance of weakness and so on to accept, people li

61、ve happily. Hello, everyone! I am a party member. The title of my speech is: < study and implement the party's two laws, doing practical play highway. 2021 October 18, the Central Committee of the Communist Party of China promulgated the implementation of the < the probity of the Communist Party

62、of China self-discipline criterion > and < Chinese Communist Party discipline and punishment regulations. We Heyuan male passers-by to respond positively to the call of the Central Committee of the party, earnestly organize the study "party two regulations", truly grasp the essence and gist, and in

63、their respective positions, to hold the bottom line of the discipline, build a strong ideological line of defense, with the courage to play, the courage to fight tough and fearless spirit, at the crucial moment well to complete the task, with practical action to test the study and implement effect B

64、ecause of discipline in the * * * * * * * * * * * story. Here, let me to cast a brick to attract jade, speak about our highway. Highway line section of the road surface transformation project, last year "towards the country seized" will be seized one of the items. To complete this arduous task, as a

65、 project management office director Comrade, keep in mind from the Communist Party membership, recognize and identify the "bottom line", strict management, and strict adherence to the quality of the project. He not only set an example, honesty and self-discipline, but also requires the management of

66、 all the members of the O.K., do not eat the construction unit one meal, do not accept the construction unit a ceremony. In this way, they didn't really dare to adhere to the principle. No comrade, constantly put on reworking an emergency meeting to Comrade Zhen to speak louder, management tube too strict. Remember in Dongguan Street, 400 meters long cement concrete surface layer, because of various reasons, the smoothness of the poor in the bottom cavity, covering film traces and car imprinting