?液壓缸功用：將液壓泵供給的液壓能轉(zhuǎn)換為機(jī)械能而對負(fù)載作功，實(shí)現(xiàn)直線往復(fù)運(yùn)動(dòng)或旋轉(zhuǎn)運(yùn)動(dòng) 液壓缸的類型及特點(diǎn) 按結(jié)構(gòu)形式:活塞式,柱塞式,組合式 按作用方式:單作用式：液體或氣體只控制?缸一腔單向運(yùn)動(dòng);雙作用式：液體或氣體控制缸兩腔實(shí)現(xiàn)雙向運(yùn)動(dòng) 活塞式液壓缸定義:在缸體內(nèi)作相對往復(fù)運(yùn)動(dòng)的組件為活塞的液壓缸 分類: 按伸出活塞桿不同:雙桿、單桿、無桿 按固定方式不同：缸體固定、活塞桿固定 雙桿活塞液壓缸特??點(diǎn)： 1）兩腔面積相等； 2）壓力相同時(shí)，推力相等，流量相同時(shí)，速度相等。
即具有等推力等速度特性 推力、速度計(jì)算 v=q/A=4?q/π(D2-d2) F=(p1-p2)A?22 =π(D-d)(p1-p2)/4 工作過程 實(shí)心雙桿活塞式液壓缸—缸體固定式 空心雙桿活塞液壓缸—桿固定式 實(shí)心雙桿活塞式液壓缸—缸體固定式 進(jìn)油腔回油腔運(yùn)動(dòng)方向占地范圍應(yīng)用場合 左 右 活塞右移 三倍于L中小型設(shè)備 右 左 活塞左移 占地面積大 進(jìn)油腔位置與活塞運(yùn)動(dòng)方向相反 空心雙桿活塞式液壓缸——桿固定式 進(jìn)油腔??回油腔??運(yùn)動(dòng)方向?占地范圍應(yīng)用場合 左 右 缸體左移 >兩倍于L，占地面積 右 左 缸體右移 小，大中型設(shè)備 進(jìn)油腔位置與活塞運(yùn)動(dòng)方向相同 單活塞桿液壓缸 特點(diǎn)：1）兩腔面積不等,A1>A2 2)壓力相同時(shí)，推力不等?流量相同時(shí)，速度不等????即不具有等推力等速度特性 結(jié)論 運(yùn)動(dòng)行程無桿腔進(jìn)油時(shí) v1=q/A1=4q/πD =π[D p1-(D-d)p2/4 有桿腔進(jìn)油時(shí) v2=q/A2=4q/π(D-d) F2=p1A2-p2A1 =π[(D-d)p1-D?p2]/4 單活塞桿液壓缸簡單連接比較 ∵ A1>A2 ∴ v1F2 故??活塞桿伸出時(shí)，推力較大，速度較小 活塞桿縮回時(shí)，推力較小，速度較大 因而：活塞桿伸出時(shí)，適用于重載慢速 活塞桿縮回時(shí)，適用于輕載快速 往復(fù)速比：λv=v2/v1=D/D-d d=D√（λv-1）/λv 單活塞桿液壓缸簡單連接結(jié)論 活塞桿直徑越小，兩個(gè)方向速度差值越小。
固定方式和工作過程皆與雙桿活塞液壓缸相同 活塞或缸體的有效行程是運(yùn)動(dòng)行程的兩倍 差動(dòng)連接式液壓缸 采用兩端面積差的連接形式，單桿活塞液壓缸兩腔同時(shí)進(jìn)入流體 差動(dòng)連接速度、推力計(jì)算 ∵ v3A1=q+v3A2 ∴ v3=q/A1-A2=4?q/πd 故??要使v2=v3，D=√ 2 d F3=p1（A1-A2）=πdp1/4 差動(dòng)連接特點(diǎn)：在不增加流量的前提下，實(shí)現(xiàn)快速運(yùn)動(dòng) 單桿活塞液壓缸應(yīng)用 單桿活塞液壓缸不同連接，可實(shí)現(xiàn)如下工作循?環(huán)： （差動(dòng)連接）（無桿腔進(jìn)油）（有桿腔進(jìn)油） 快進(jìn) → 工進(jìn) → 快退 v3、F3 v1、F1 v2、F2 90L075-KA-5-CD-80-R-3-S1-D-03-GBA-17-17-20 90L075KA5CD80R3S1D03GBA171720 90-L-075-KA-5-CD-80-R-3-S1-D-03-GBA-17-17-20 90L075KA5CD80R3S1D03GBA171720 90L075-KA-5-CD-80-R-3-S1-D-03-GBA-35-35-24 90L075KA5CD80R3S1D03GBA353524 90-L-075-KA-5-CD-80-R-3-S1-D-03-GBA-35-35-24 90L075KA5CD80R3S1D03GBA353524 90L075-KA-5-CD-80-R-3-S1-E-06-GBA-35-35-24 90L075KA5CD80R3S1E06GBA353524 90-L-075-KA-5-CD-80-R-3-S1-E-06-GBA-35-35-24 90L075KA5CD80R3S1E06GBA353524 90-L-075-KA-5-CD-80-R-4-S1-D-03-GBA-29-29-24 90L075KA5CD80R4S1D03GBA292924 90L075-KA-5-CD-80-S-3-C6-D-03-GBA-35-35-24 90L075KA5CD80S3C6D03GBA353524 90-L-075-KA-5-CD-80-S-3-C6-D-03-GBA-35-35-24 90L075KA5CD80S3C6D03GBA353524 90L075-KA-5-CD-80-S-3-C7-D-03-GBA-26-26-24 90L075KA5CD80S3C7D03GBA262624 90-L-075-KA-5-CD-80-S-3-C7-D-03-GBA-26-26-24 90L075KA5CD80S3C7D03GBA262624 90L075-KA-5-CD-80-S-3-C7-D-03-GBA-30-30-24 90L075KA5CD80S3C7D03GBA303024 90-L-075-KA-5-CD-80-S-3-C7-D-03-GBA-30-30-24 90L075KA5CD80S3C7D03GBA303024 90L075-KA-5-CD-80-S-3-C7-D-03-GBA-35-35-24 90L075KA5CD80S3C7D03GBA353524 90-L-075-KA-5-CD-80-S-3-C7-D-03-GBA-35-35-24 90L075KA5CD80S3C7D03GBA353524 90L075-KA-5-CD-80-S-3-C7-D-03-GBA-42-42-24 90L075KA5CD80S3C7D03GBA424224 90-L-075-KA-5-CD-80-S-3-C7-D-03-GBA-42-42-24 90L075KA5CD80S3C7D03GBA424224 90L075-KA-5-CD-80-S-3-C7-D-05-GBA-42-42-24 90L075KA5CD80S3C7D05GBA424224 90-L-075-KA-5-CD-80-S-3-C7-D-05-GBA-42-42-24 90L075KA5CD80S3C7D05GBA424224 90L075-KA-5-CD-80-S-3-C7-E-03-GBA-29-29-24 90L075KA5CD80S3C7E03GBA292924 90-L-075-KA-5-CD-80-S-3-C7-E-03-GBA-29-29-24 90L075KA5CD80S3C7E03GBA292924 90L075-KA-5-CD-80-S-3-C7-E-03-GBA-35-35-24 90L075KA5CD80S3C7E03GBA353524 90-L-075-KA-5-CD-80-S-3-C7-E-03-GBA-35-35-24 90L075KA5CD80S3C7E03GBA353524 90L075-KA-5-CD-80-S-3-S1-D-03-GBA-32-32-24 90L075KA5CD80S3S1D03GBA323224 90-L-075-KA-5-CD-80-S-3-S1-D-03-GBA-32-32-24 90L075KA5CD80S3S1D03GBA323224 90L075-KA-5-CD-80-S-3-S1-D-03-GBA-42-42-24 90L075KA5CD80S3S1D03GBA424224 90-L-075-KA-5-CD-80-S-3-S1-D-03-GBA-42-42-24 90L075KA5CD80S3S1D03GBA424224 90L075-KA-5-CD-80-S-4-C7-D-03-GBA-38-38-24 90L075KA5CD80S4C7D03GBA383824 90-L-075-KA-5-CD-80-S-4-C7-D-03-GBA-38-38-24 90L075KA5CD80S4C7D03GBA383824 90L075-KA-5-CD-80-S-4-S1-D-02-GBA-29-29-24 90L075KA5CD80S4S1D02GBA292924 90-L-075-KA-5-CD-80-S-4-S1-D-02-GBA-29-29-24 90L075KA5CD80S4S1D02GBA292924 90L075-KA-5-CD-80-S-4-S1-D-04-GBA-38-38-20 90L075KA5CD80S4S1D04GBA383820 90-L-075-KA-5-CD-80-S-4-S1-D-04-GBA-38-38-20 90L075KA5CD80S4S1D04GBA383820 90L075-KA-5-NN-60-L-3-C6-E-03-GBA-35-35-24 90L075KA5NN60L3C6E03GBA353524 90-L-075-KA-5-NN-60-L-3-C6-E-03-GBA-35-35-24 90L075KA5NN60L3C6E03GBA353524 90L075-KA-5-NN-60-L-3-C7-D-03-GBA-38-38-20 90L075KA5NN60L3C7D03GBA383820 90-L-075-KA-5-NN-60-L-3-C7-D-03-GBA-38-38-20 90L075KA5NN60L3C7D03GBA383820 90L075-KA-5-NN-60-L-3-C7-E-03-GBA-40-40-24 90L075KA5NN60L3C7E03GBA404024 90-L-075-KA-5-NN-60-L-3-C7-E-03-GBA-40-40-24 90L075KA5NN60L3C7E03GBA404024 90L075-KA-5-NN-60-L-4-S1-C-03-GBA-42-42-24 90L075KA5NN60L4S1C03GBA424224 90-L-075-KA-5-NN-60-L-4-S1-C-03-GBA-42-42-24 90L075KA5NN60L4S1C03GBA424224 90L075-KA-5-NN-60-P-3-C6-D-03-GBA-20-20-24 90L075KA5NN60P3C6D03GBA202024 90-L-075-KA-5-NN-60-P-3-C6-D-03-GBA-20-20-24 90L075KA5NN60P3C6D03GBA202024 90L075-KA-5-NN-60-P-3-C7-D-03-GBA-32-32-28 90L075KA5NN60P3C7D03GBA323228 90-L-075-KA-5-NN-60-P-3-C7-D-03-GBA-32-32-28 90L075KA5NN60P3C7D03GBA323228 90-L-075-KA-5-NN-60-P-3-S1-D-03-GBA-42-42-24 90L075KA5NN60P3S1D03GBA424224 90-L-075-KA-5-NN-60-P-4-S1-D-03-GBA-35-35-24 90L075KA5NN60P4S1D03GBA353524 90-L-075-KA-5-NN-60-R-3-S1-E-03-GBA-35-35-24 90L075KA5NN60R3S1E03GBA353524 90L075-KA-5-NN-60-S-3-C6-C-03-GBA-35-35-24 90L075KA5NN60S3C6C03GBA353524 90-L-075-KA-5-NN-60-S-3-C6-C-03-GBA-35-35-24 90L075KA5NN60S3C6C03GBA353524 90-L-075-KA-5-NN-60-S-3-C6-D-03-GBA-35-35-24 90L075KA5NN60S3C6D03GBA353524 90L075-KA-5-NN-60-S-3-C6-D-03-GBA-42-42-24 90L075KA5NN60S3C6D03GBA424224 90-L-075-KA-5-NN-60-S-3-C6-D-03-GBA-42-42-24 90L075KA5NN60S3C6D03GBA424224 90L075-KA-5-NN-60-S-3-C6-D-05-GBA-32-32-24 90L075KA5NN60S3C6D05GBA323224 90-L-075-KA-5-NN-60-S-3-C6-D-05-GBA-32-32-24 90L075KA5NN60S3C6D05GBA323224 90-L-075-KA-5-NN-60-S-3-C6-D-06-GBA-30-30-24 90L075KA5NN60S3C6D06GBA303024 90L075-KA-5-NN-60-S-3-C7-D-03-GBA-35-35-24 90L075KA5NN60S3C7D03GBA353524 90-L-075-KA-5-NN-60-S-3-C7-D-03-GBA-35-35-24 90L075KA5NN60S3C7D03GBA353524 90L075-KA-5-NN-60-S-3-C7-D-03-GBA-38-38-20 90L075KA5NN60S3C7D03GBA383820 90-L-075-KA-5-NN-60-S-3-C7-D-03-GBA-38-38-20 90L075KA5NN60S3C7D03GBA383820 90L075-KA-5-NN-60-S-3-C7-D-03-GBA-42-42-24 90L075KA5NN60S3C7D03GBA424224 90-L-075-KA-5-NN-60-S-3-C7-D-03-GBA-42-42-24 90L075KA5NN60S3C7D03GBA424224 90L075-KA-5-NN-60-S-3-C7-D-04-GBA-35-35-24 90L075KA5NN60S3C7D04GBA353524 90-L-075-KA-5-NN-60-S-3-C7-D-04-GBA-35-35-24 90L075KA5NN60S3C7D04GBA353524 90L075-KA-5-NN-60-S-3-C7-D-09-GBA-30-30-30 90L075KA5NN60S3C7D09GBA303030 90-L-075-KA-5-NN-60-S-3-C7-D-09-GBA-30-30-30 90L075KA5NN60S3C7D09GBA303030 90L075-KA-5-NN-60-S-3-C7-E-03-GBA-29-29-24 90L075KA5NN60S3C7E03GBA292924 90-L-075-KA-5-NN-60-S-3-C7-E-03-GBA-29-29-24 90L075KA5NN60S3C7E03GBA292924 90L075-KA-5-NN-60-S-4-C7-D-03-GBA-32-42-24 90L075KA5NN60S4C7D03GBA324224 90-L-075-KA-5-NN-60-S-4-C7-D-03-GBA-32-42-24 90L075KA5NN60S4C7D03GBA324224 90L075-KA-5-NN-60-S-4-C7-D-03-GBA-42-42-24 90L075KA5NN60S4C7D03GBA424224 90-L-075-KA-5-NN-60-S-4-C7-D-03-GBA-42-42-24 90L075KA5NN60S4C7D03GBA424224 90L075-KA-5-NN-60-S-4-C7-E-03-GBA-42-42-24 90L075KA5NN60S4C7E03GBA424224 90-L-075-KA-5-NN-60-S-4-C7-E-03-GBA-42-42-24 90L075KA5NN60S4C7E03GBA424224 90L075-KA-5-NN-60-S-4-S1-D-03-GBA-26-26-24 90L075KA5NN60S4S1D03GBA262624 90-L-075-KA-5-NN-60-S-4-S1-D-03-GBA-26-26-24 90L075KA5NN60S4S1D03GBA262624 90L075-KA-5-NN-60-S-4-S1-D-05-GBA-26-26-24 90L075KA5NN60S4S1D05GBA262624 90-L-075-KA-5-NN-60-S-4-S1-D-05-GBA-26-26-24 90L075KA5NN60S4S1D05GBA262624 90-L-075-KA-5-NN-80-L-3-C6-D-09-GBA-35-35-24 90L075KA5NN80L3C6D09GBA353524 。
