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1、液壓、氣動(dòng)一、 液壓傳動(dòng)1、 理解:液壓傳動(dòng)是以流體為工作介質(zhì)進(jìn)行能量傳遞的傳動(dòng)方式。2、 組成原件1、 把機(jī)械能變換為液體(主要是油)能量(主要是壓力能)的液壓泵2 、調(diào)節(jié)、控制壓力能的液壓控制閥3、 把壓力能轉(zhuǎn)換為機(jī)械能的液壓執(zhí)行器(液壓馬達(dá)、液壓缸、液壓擺動(dòng)馬達(dá))4 、傳遞壓力能和液體本身調(diào)整所必需的液壓輔件液壓系統(tǒng)的形式3、 部分元件規(guī)格及參數(shù)(1) 液壓泵液壓泵是液壓系統(tǒng)的動(dòng)力元件,是靠發(fā)動(dòng)機(jī)或電動(dòng)機(jī)驅(qū)動(dòng),從液壓油箱中吸入油液,形成壓力油排出,送到執(zhí)行元件的一種元件。分類:齒輪泵:體積較小,結(jié)構(gòu)較簡(jiǎn)單,對(duì)油的清潔度要求不嚴(yán),價(jià)格較便宜;但泵軸受不平衡力,磨損嚴(yán)重,泄漏較大。葉片泵:分

2、為雙作用葉片泵和單作用葉片泵。這種泵流量均勻、運(yùn)轉(zhuǎn)平穩(wěn)、噪音小、作壓力和容積效率比齒輪泵高、結(jié)構(gòu)比齒輪泵復(fù)雜。柱塞泵:容積效率高、泄漏小、可在高壓下工作、大多用於大功率液壓系統(tǒng);但結(jié)構(gòu)復(fù)雜,材料和加工精度要求高、價(jià)格貴、對(duì)油的清潔度要求高。一般在齒輪泵和葉片泵不能滿足要求時(shí)才用柱塞泵。還有一些其他形式的液壓泵,如螺桿泵等,但應(yīng)用不如上述3種普遍。適用工況和應(yīng)用舉例【KCB/2CY型齒輪油泵】工作原理:2CY、KCB齒輪式輸油泵在泵體中裝有一對(duì)回轉(zhuǎn)齒輪,一個(gè)主動(dòng),一個(gè)被動(dòng),依靠?jī)升X輪的相互嚙合,把泵內(nèi)的整個(gè)工作腔分兩個(gè)獨(dú)立的部分。A為入吸腔,B為排出腔。泵運(yùn)轉(zhuǎn)時(shí)主動(dòng)齒輪帶動(dòng)被動(dòng)齒輪旋轉(zhuǎn),當(dāng)齒化從

3、嚙合到脫開時(shí)在吸入側(cè)(A)就形成局部真空,液體被吸入。被吸入的液體充滿齒輪的各個(gè)齒谷而帶到排出側(cè)(B),齒輪進(jìn)入嚙合時(shí)液體被擠出,形成高壓液體并經(jīng)泵的排出口排出泵外。KCB/2Y型齒輪油泵型號(hào)參數(shù)和安裝尺寸如下:【KCB/2CY型齒輪油泵】性能參數(shù):型號(hào)規(guī)格電機(jī)功率(KW)轉(zhuǎn)速(r/min)流量(L/min)排出壓力(MPa/cm2)允許吸上真空泵(m)進(jìn)出口徑KCB18.3(2CY-1.1/14.5-2)1.5140018.31.4553/4"KCB33.3(2CY-2/14.5-2)2.2142033.31.4553/4"KCB55(2CY-3.3/3.3-2)1.51

4、400550.3351"KCB55(2CY-3.3/3.5-2)2.21420550.551"KCB83.3(2CY-5/3-2)2.2142083.30.3351.5"KCB83.3(2CY-5/5-2)3142083.30.551.5"KCB200(2CY-8/3.3-2)414402000.3352"KCB200(2CY-12/1.3-2)414402000.1352"KCB200(2CY-12/3.3-2)5.514402000.3352"KCB200(2CY-12/6-2)5.514402000.6052"

5、;KCB200(2CY-12/10-2)7.514402001.0052"KCB300(2CY-18/3.6-2)5.59603000.3653"KCB300(2CY-18/6-2)7.514403000.653"KCB483.3(2CY-29-3.6-2)7.51440483.30.3653"KCB483.3(2CY-29-10-2)11970483.31.0053"KCB633(2CY-38/2.8-2)1110006330.2854"KCB633(2CY-38/8-2)2210006330.854"KCB960(2CY

6、-60/3-2)18.514509600.354"KCB960(2CY-60-6-2)3014509600.654"KCB2000(2CY-120/3-2)3075020000.356"KCB2500(2CY-150/3-2)3775025000.356"【KCB/2CY型齒輪油泵】安裝尺寸圖: KCB18.383.3與2CY1.15安裝尺寸圖 型號(hào)電動(dòng)機(jī)ABCDEG"L型號(hào)功率KCB18.3-2Y-90L-41.5583300230130793/4"230KCB33.3-2Y-100L1-42.2618325285140793/4&

7、quot;250KCB55-2Y-90L-41.558830023013086.51"230KCB83.3-2Y-100L1-42.2658325285140993/2"250KCB200960與2CY8150安裝尺寸圖 型號(hào)LL1L2L3HH1H2BB1B2B3KCB-300855690470100413188230410370315210KCB-483.3855690470100413188230410370315210KCB-200800655450116315182220380340250210KCB-63311168985701635102103054403902

8、80237KCB-9601156941600176555210305460410280237雙聯(lián)葉片泵型號(hào)參數(shù):雙聯(lián)葉片泵(兩個(gè)單級(jí)泵并聯(lián)組成,有多種規(guī)格)型號(hào)識(shí)別說(shuō)明YYBAA616BDUOJY2結(jié)構(gòu)代號(hào)系列號(hào)后泵幾何排量ml/r前泵集合排量ml/r壓力分級(jí)Mpa旋向(從軸端看) D:順時(shí)針S:逆時(shí)針油口位置安裝方式 J:腳架 F:法蘭 設(shè)計(jì)號(hào)以下為YYBAA型型號(hào)理論排量ml/r輸出流量L/min驅(qū)動(dòng)功率kw轉(zhuǎn)速r/min后泵前泵后泵前泵后泵前泵額定最低最高YYB1-AA6/6B-Y26.56.54.04.01.01.010008002000YYB1-AA6/

9、9B-Y2 6.59.14.09.11.01.310008002000YYB1-AA9/9B-Y29.19.16.96.31.31.310006002000YYB1-AA6/14B-Y26.514.54.011.91.02.110008002000YYB1-AA9/14B-Y2 9.114.56.911.91.32.110006002000YYB1-AA14/14B-Y214.514.511.911.92.12.110006002000YYB1-AA6/16B-Y26.516.34.013.71.02.410008001800YYB1-AA9/16B-Y29.116.36.

10、913.71.32.410006001800YYB1-AA14/16B-Y214.516.311.913.72.12.410006001800YYB1-AA16/16B-Y216.316.313.713.72.42.410006001800YYB1-AA6/26B-Y26.526.14.022.51.03.810008001800YYB1-AA9/26B-Y29.126.16.922.51.33.810006001800YYB1-AA14/26B-Y214.526.111.922.52.13.810006001800YYB1-AA16/26B-Y216.326.113.722.52.43.81

11、0006001800YYB1-AA26/26B-Y2 26.126.122.522.53.83.810008001800YYB1-AA6/36B-Y2 6.535.94.030.91.05.210008001500YYB1-AA9/36B-Y2 9.135.96.930.91.35.210006001500YYB1-AA14/36B-Y2 14.535.911.93092.15.210006001500YYB1-AA16/36B-Y2 16.335.913.730.92.45.210006001500YYB1-AA26/36B-Y2 

12、26.135.922.530.93.85.210006001500YYB1-AA36/36B-Y235.935.930.930.95.25.210006001500YYBAB型型號(hào)理論排量ml/r輸出流量L/min驅(qū)動(dòng)功率kw轉(zhuǎn)速r/min后泵前泵后泵前泵后泵前泵額定最低最高YYB-AB6/48B 6.548.34.042.71.06.710006001500YYB-AB9/48B 9.14836.942.71.36.710006001500YYB-AB14/48B 14.548.311.942.72.16.710006001500YYB-AB16/48B 16.348.313.742.72.

13、46.710006001500YYB-AB26/48B 26.148.322.542.73.86.710006001500YYB-AB36/48B 35.948.330.942.75.26.710006001500YYB-AB6/60B 6.561.04.053.91.08.710006001500YYB-AB9/60B 9.161.06.953.91.38.710006001500YYB-AB14/60B 14.561.011.953.92.18.710006001500YYB-AB16/60B 16.361.013.7539248.710006001500YYB-AB26/60B 26.1

14、61.022.553.93.88.710006001500YYB-AB36/60B 35.961.030.953.95.28.710006001500YYB-AB6/74B 6.574.84.066.11.010.710006001500YYB-AB9/74B 9.174.86.966.11.310.710006001500YYB-AB14/74B 14.574.811.966.12.110.710006001500YYB-AB16/74B 16.374.813.766.12.410.710006001500YYB-AB26/74B 26.174.822.566.13.810.71000600

15、1500YYB-AB36/74B 35.974.830.966.15.210.710006001500YYB-AB6/92B 6.593.54.083.51.013.410006001200YYB-AB9/92B 9.193.56.983.51.313.410006001200YYB-AB14/92B 14.593.511.983.52.113.410006001200YYB-AB16/92B 16.393.513.783.52.413.410006001200YYB-AB26/92B 26.193.522.583.53.813.410006001200YYB-AB36/92B 35.993.

16、530.983.55.213.410006001200YYB-AB6/113B 6.5115.44.0102.81.016.510006001200YYB-AB9/113B 9.1115.46.9102.81.316.510006001200YYB-AB14/113B 14.5115.411.9102.82.116.510006001200YYB-AB16/113B 16.3115.413.7102.82.416.510006001200YYB-AB26/113B 26.1115.422.1102.83.816.510006001200YYB-AB36/113B 35.9115.430.910

17、2.85.216.510006001200液壓泵的主要技術(shù)參數(shù)和計(jì)算公式參數(shù)名稱單位計(jì)算公式符號(hào)說(shuō)明流量L/minq0=V·nq=V·n·V排量(mL/r)n轉(zhuǎn)速(r/min) q0理論流量(L/min) q實(shí)際流量(L/min)輸入功率KWPi=2Tn/600Pi輸入功率(kW) T轉(zhuǎn)矩(N·m)輸出功率KWP0=pq/60P0輸出功率(kW) p輸出壓力(MPa)容積效率%0容積效率(%)機(jī)械效率%m機(jī)械效率(%總效率%總效率(%)(2)液壓馬達(dá):是把液體的壓力能轉(zhuǎn)換為機(jī)械能的裝置分類:1、按照額定轉(zhuǎn)速選擇:分

18、為高度和低速兩大類,高速液壓馬達(dá)的基本形式有齒輪式、螺桿式、葉片式和軸向柱塞式等,高速液壓馬達(dá)主要具有轉(zhuǎn)速較高,轉(zhuǎn)動(dòng)慣性小,便于啟動(dòng)和制動(dòng),調(diào)速和換向的靈敏度高。低速液壓馬達(dá)的基本形式為徑向柱塞式,主要具有排量大、體積大、轉(zhuǎn)速低、傳動(dòng)機(jī)構(gòu)較簡(jiǎn)化。         2、按照結(jié)構(gòu)類型選擇:分為葉片式、軸向柱塞式、擺動(dòng)式等。葉片馬達(dá)具有體積小、轉(zhuǎn)動(dòng)慣性小、動(dòng)作靈敏、可以實(shí)現(xiàn)換向頻率高,但泄漏較大,不能低速工作。軸向柱塞馬達(dá)具有輸出扭矩小。常用液壓馬達(dá)的主要技術(shù)參數(shù)適用工況和應(yīng)用實(shí)例:1、XHM液壓馬達(dá)型號(hào)與參數(shù). 馬達(dá)結(jié)構(gòu)及外形示

19、意:技術(shù)選型參數(shù):規(guī)格型號(hào)排量壓力(MPa)扭矩(N.m)轉(zhuǎn)速范圍重量(kg)額定最高額定單位XHM1XHM1-636425322259.015150020XHM1-8078253230012151250XHM1-10096253235014151000XHM1-125126202538019151000XHM1-160159202547223151000XHM2XHM2-10011325324201815125027XHM2-150159253262025151000XHM2-175180202552628151000XHM2-2002062025600328800XHM2-25023516

20、20607408630XHM2-2802761620670448500XHM3XHM3-1751812532710288100035XHM3-2002012532800328800XHM3-2502542532949408630XHM3-3002892025864446500XHM-35034020251040556400XHM3-4003801620949636400XHM6XHM6-4003972532148363563057.5XHM6-45045225321638725630XHM6-50049120251463785500XHM6-60059420251775944500XHM6-7

21、00683162016331034400XHM6-750754162017601104320XHM11XHM11-70068225322667114440094XHM11-800782253229591204400XHM11-900894253234801404400XHM11-1000981202529471583320XHM11-11001104202533361773320XHM11-12001234202535121873320XHM1-13001301162030801973250XHM16XHM16-14001413253251382102400170XHM16-160016482

22、02561582622400XHM16-18001814202554332832320XHM16-20002034202560303232320XHM16-24002267162057633602250XHM31XHM31-25002553253295234052250298XHM31-280026832532105594431200XHM31-30003063202591354851200XHM31-31503218202593925001200XHM31-350034622025102205441160XHM31-400041522025124816651160XHM31-50004828

23、1620123878251160規(guī)格型號(hào)排量壓力(MPa)扭矩(N.m)轉(zhuǎn)速范圍重量(kg)額定最高額定單位XHM40XHM40-30003063202591354851240420XHM40-32003218202593925001240XHM40-350034622025102205441240XHM40-400041552025124816651230XHM40-450045242025135087201220XHM40-500049882025159007951200XHM40-550055012025174908751180XHM40-630063112025190809541160

24、2、XHS液壓馬達(dá)結(jié)構(gòu)及外形示意:技術(shù)選型:規(guī)格型號(hào)排量ml/r壓力(MPa)扭矩(N.m)轉(zhuǎn)速r/min重量(kg)額定尖峰額定單位連續(xù)最高XHS05-605925452359.41-700100022XHS05-75742542.529511.81-7001000XHS05-90862537.534313.71-7001000XHS05-110115254045818.31-650900XHS05-1301292537.551320.51-650900XHS05-1501512532.5600241-650900XHS05-1701662532.566026.41-600800XHS05-

25、200191252876030.41-600800XHS1-100992542.538515.41-550100031XHS1-1501542540600241-5501000XHS1-1751722537.567026.81-550900XHS1-200201253578531.41-550800XHS1-2502432535950381-450700XHS1-3002902530113045.21-350650XHS1-32031425281225491-350600XHS2-2001922542.5750300.7-55080051XHS2-2502512542.598039.20.7-

26、550800XHS2-3003042540118847.50.7-500750XHS2-3503472537.5135554.20.7-500750XHS2-4204252535165866.30.7-450750XHS2-5004932535192376.90.7-450700XHS2-6005652530220888.30.7-450700XHS2-6206232528243397.30.7-400650XHS3-4254262542.5166066.40.5-50065087XHS3-5004862542.5189575.80.5-450600XHS3-6005952540232092.

27、80.5-450575XHS3-700690253527001080.5-400500XHS3-800792253531001240.5-400500XHS3-900873253534001360.5-350400XHS3-1000987252838501540.5-300350XHS4-6006162540240396.10.4-400550120XHS4-800793254031001240.4-350550120XHS4-9009042537.535251410.4-325450XHS4-10001022253540001600.4-300400XHS4-1100111625354350

28、1740.4-275400XHS4-13001316252851252050.4-225350XHS5-8008072542.531501260.3-325450175XHS5-100010392542.540501620.3-300450XHS5-12001185254046251850.3-300400XHS5-13001340254052252090.3-300400XHS5-145014622537.557002280.3-275350XHS5-160016432537.563502540.3-250300XHS5-18001816253570752830.3-250300XHS5-2

29、0002007253578253130.3-200250XHS6-17001690254566002640.2-250400275XHS6-21002127254083003320.2-225350XHS6-250025132537.598003920.2-200300XHS6-300030412535118754750.2-175250XHS7-20002007253279753190.3-350450340XHS7-250025262532100504020.3-250350XHS7-300029852532118774750.3-200300XHS7-330032902532130755

30、230.3-200275XHS7-360036112532143505740.3-175250XHS7-430042982532171006840.3-175225液壓缸液壓缸是將液壓能轉(zhuǎn)變?yōu)闄C(jī)械能的、做直線往復(fù)運(yùn)動(dòng)(或擺動(dòng)運(yùn)動(dòng))的液壓執(zhí)行元件。它結(jié)構(gòu)簡(jiǎn)單、工作可靠。用它來(lái)實(shí)現(xiàn)往復(fù)運(yùn)動(dòng)時(shí),可免去減速裝置,并且沒(méi)有傳動(dòng)間隙,運(yùn)動(dòng)平穩(wěn),因此在各種機(jī)械的液壓系統(tǒng)中得到廣泛應(yīng)用。液壓缸輸出力和活塞有效面積及其兩邊的壓差成正比;液壓缸基本上由缸筒和缸蓋、活塞和活塞桿、密封裝置、緩沖裝置與排氣裝置組成。緩沖裝置與排氣裝置視具體應(yīng)用場(chǎng)合而定,其他裝置則必不可少。液壓缸的類型和特點(diǎn)類型速度作用力特點(diǎn)單作用液壓

31、缸雙活塞桿液壓缸U=q/A3F=p1A1活塞的兩側(cè)都裝有活塞桿,只能向活塞一側(cè)供給壓力油,由外力使活塞反向運(yùn)動(dòng)單活塞桿液壓缸U=q/A3F1=p1A1活塞僅單向運(yùn)動(dòng),返回行程利用自重或負(fù)荷將活塞推回柱塞式液壓缸U=q/A3F1=p1A1柱塞僅單向運(yùn)動(dòng),由外力使柱塞反向運(yùn)動(dòng)差動(dòng)液壓缸U3=q/A3F3=p1A1可使速度加快,但作用力相應(yīng)減小伸縮液壓缸-以短缸獲得長(zhǎng)行程;缸由大到小逐節(jié)推出,靠外力由小到大逐節(jié)縮回雙作用液壓缸雙活塞桿液壓缸U1=q/A3U2=q/A2F1=(p1-p2)A1F2=(p2-p1)A2雙邊有桿,雙向液壓驅(qū)動(dòng),雙向推力和速度均相等單活塞桿液壓缸U1=q/A3U2=q/A2

32、F1=(p1-p2)A1F2=(p2-p1)A2單邊有桿,雙向液壓驅(qū)動(dòng),u1V U2,F(xiàn)1F2伸縮液壓缸-雙向液壓驅(qū)動(dòng),由大到小逐節(jié)推出,由小到大逐節(jié)縮回組合液壓缸彈簧復(fù)位液壓缸-單向由液壓驅(qū)動(dòng),回程彈簧復(fù)位串聯(lián)液壓缸U1=q/(A1+A2)U2=q2A2F1=p1(A1-A2)-2qA2F1=2p2A2-A2-q1(A1+A2)用于缸的直徑受限制,而長(zhǎng)度不受限制處,可獲得在的推力增 壓 缸-由活塞缸和柱塞缸組合而成,低壓油送入A腔,B腔輸出高壓油齒條液壓缸-活塞的移動(dòng)通過(guò)傳動(dòng)機(jī)構(gòu)變成齒輪的往復(fù)回轉(zhuǎn)運(yùn)動(dòng)擺動(dòng)液壓缸單葉片液壓缸W=8q/(b( D2-d2)T=p(D2-d2)b/8把液壓能變?yōu)榛?/p>

33、轉(zhuǎn)的機(jī)械能,輸出軸擺動(dòng)角 < 300度雙葉片液壓缸W=4q/(b(D2-d2)T=p(D2-d2)b/4把液壓能變?yōu)榛剞D(zhuǎn)的機(jī)械能,輸出軸擺動(dòng)角 < 150度注:b葉片寬度;D葉片的底端 、頂端直徑;w葉片軸的角速度;T- 理論轉(zhuǎn)矩液壓油缸介紹以及安裝尺寸標(biāo)準(zhǔn)HS01·210L 系列拉桿液壓缸 SD(基本型)    代號(hào) 缸徑ABBDDDEEETGFHJKKKLMMPWYFA型其它40301740M12×1.570ZG3/850138104732M20×1.56422173015650351846M14×

34、1.585ZG1/262158135237M24×1.56828193017263452055M16×1.5100ZG1/274186125737M30×1.57535193518780602565M20×1.5125ZG3/4922410106742M39×1.585452235218100752980M24×1.5160ZG3/4120267126742M48×1.595552240230125953595M30×1.5190ZG1140336107752M64×2105702745267140110

35、38105M33×1.5215ZG1160366117752M72×211080275027516012042120M36×1.5240ZG1180415108051M80×2132902755304 SD(雙出桿基本型)    代號(hào)  缸徑ABBDDDEEETGFZMJLZKKLMMPW40301740M12×1.570ZG3/8501324447154M20×1.56422173050351846M14×1.585ZG1/2621526252172M24×1.568281

36、93063452055M16×1.5100ZG1/2741829557185M30×1.57535193580602565M20×1.5125ZG3/4922433767217M39×1.585452235100752980M24×1.5160ZG3/41202636167231M48×1.595552240125953595M30×1.5190ZG11403341577275M64×210570274514011038105M33×1.5215ZG11603643677286M72×21108

37、0275016012042120M36×1.5240ZG11804148480316M80×2132902755 LA(切向腳架)  代號(hào) 缸徑AABACAEAHALEEAMAOHASATKKKLMMSAUAYLWFA型其它403011597742±0.1531ZG3/816168109815M20×1.53222111122156305035146397.555±0.1534ZG1/2191881311820M24×1.53728120145172306345187111363±0.1539ZG1/21

38、91861214025M30×1.537351321751873580602280137.575±0.2546ZG3/42121101017530M39×1.542451522102183510075268916585±0.2544ZG3/4242371221535M48×1.54755162260235401259533106200105±0.2549ZG1292861027045M64×257701823302724514011033114219.5112±0.2549ZG1292861128045M72×257801873352805016012036127245125±0.2549ZG1313151031550M80×2629021237531555二、 氣動(dòng)氣動(dòng)是利用撞擊作用或轉(zhuǎn)動(dòng)作用產(chǎn)生的空氣壓力使其運(yùn)動(dòng)或作功,氣動(dòng)就是以壓縮空氣為動(dòng)力源,

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