液压缸功用：将液压泵供给的液压能转换为机械能而对负载作功，实现直线往复运动或旋转运动 液压缸的类型及特点 按结构形式:活塞式,柱塞式,组合式 按作用方式:单作用式：液体或气体只控制?缸一腔单向运动;双作用式：液体或气体控制缸两腔实现双向运动 活塞式液压缸定义:在缸体内作相对往复运动的组件为活塞的液压缸 分类: 按伸出活塞杆不同:双杆、单杆、无杆 按固定方式不同：缸体固定、活塞杆固定 双杆活塞液压缸特??点： 1）两腔面积相等； 2）压力相同时，推力相等，流量相同时，速度相等。
即具有等推力等速度特性 推力、速度计算 v=q/A=4?q/π(D2-d2) F=(p1-p2)A?22 =π(D-d)(p1-p2)/4 工作过程 实心双杆活塞式液压缸—缸体固定式 空心双杆活塞液压缸—杆固定式 实心双杆活塞式液压缸—缸体固定式 进油腔回油腔运动方向占地范围应用场合 左 右 活塞右移 三倍于L中小型设备 右 左 活塞左移 占地面积大 进油腔位置与活塞运动方向相反 空心双杆活塞式液压缸——杆固定式 进油腔??回油腔??运动方向?占地范围应用场合 左 右 缸体左移 >两倍于L，占地面积 右 左 缸体右移 小，大中型设备 进油腔位置与活塞运动方向相同 单活塞杆液压缸 特点：1）两腔面积不等,A1>A2 2)压力相同时，推力不等?流量相同时，速度不等????即不具有等推力等速度特性 结论 运动行程无杆腔进油时 v1=q/A1=4q/πD =π[D p1-(D-d)p2/4 有杆腔进油时 v2=q/A2=4q/π(D-d) F2=p1A2-p2A1 =π[(D-d)p1-D?p2]/4 单活塞杆液压缸简单连接比较 ∵ A1>A2 ∴ v1F2 故??活塞杆伸出时，推力较大，速度较小 活塞杆缩回时，推力较小，速度较大 因而：活塞杆伸出时，适用于重载慢速 活塞杆缩回时，适用于轻载快速 往复速比：λv=v2/v1=D/D-d d=D√（λv-1）/λv 单活塞杆液压缸简单连接结论 活塞杆直径越小，两个方向速度差值越小。
固定方式和工作过程皆与双杆活塞液压缸相同 活塞或缸体的有效行程是运动行程的两倍 差动连接式液压缸 采用两端面积差的连接形式，单杆活塞液压缸两腔同时进入流体 差动连接速度、推力计算 ∵ v3A1=q+v3A2 ∴ v3=q/A1-A2=4?q/πd 故??要使v2=v3，D=√ 2 d F3=p1（A1-A2）=πdp1/4 差动连接特点：在不增加流量的前提下，实现快速运动 单杆活塞液压缸应用 单杆活塞液压缸不同连接，可实现如下工作循?环： （差动连接）（无杆腔进油）（有杆腔进油） 快进 → 工进 → 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 。
