—活塞9、22—锥销10—缸体11、20—压板12、21—钢丝环13、23—纸垫15—活塞杆16、2
huo sai 9 22 zhui xiao 10 gang ti 11 20 ya ban 12 21 gang si huan 13 23 zhi dian 15 huo sai gan 16 2
的结构1—活塞杆2—堵头3—托架4、17—v形密封圈5、14—排气孔6、19—导向套7—o形密封圈8
de jie gou 1 huo sai gan 2 du tou 3 tuo jia 4 17 v xing mi feng quan 5 14 pai qi kong 6 19 dao xiang tao 7 o xing mi feng quan 8
排气孔5和14，经导向套环槽的侧面孔道(图中未画出)引出与排气阀相连。图4-13空心双活塞杆式液压缸
pai qi kong 5 he 14 jing dao xiang tao huan cao de ce mian kong dao ( tu zhong wei hua chu ) yin chu yu pai qi fa xiang lian tu 4-13 kong xin shuang huo sai gan shi ye ya gang
端时，径向孔a和c的开口逐渐减小，对移动部件起制动缓冲作用。为了排除液压缸中剩留的空气，缸盖上设置有
duan shi jing xiang kong a he c de kai kou zhu jian jian xiao dui yi dong bu jian qi zhi dong huan chong zuo yong wei le pai chu ye ya gang zhong sheng liu de kong qi gang gai shang she zhi you
别用o形圈7、v形圈4和17和纸垫13和23进行密封，以防止油液的内、外泄漏。缸筒在接近行程的左右终
bie yong o xing quan 7 v xing quan 4 he 17 he zhi dian 13 he 23 jin hang mi feng yi fang zhi you ye de nei wai xie lou gang tong zai jie jin hang cheng de zuo you zhong
缸筒相对于活塞运动由左右两个导向套6和19导向。活塞与缸筒之间、缸盖与活塞杆之间以及缸盖与缸筒之间分
gang tong xiang dui yu huo sai yun dong you zuo you liang ge dao xiang tao 6 he 19 dao xiang huo sai yu gang tong zhi jian gang gai yu huo sai gan zhi jian yi ji gang gai yu gang tong zhi jian fen
盖24空套在托架3孔内，可以自由伸缩。空心活塞杆的一端用堵头2堵死，并通过锥销9和22与活塞8相连。
gai 24 kong tao zai tuo jia 3 kong nei ke yi zi you shen suo kong xin huo sai gan de yi duan yong du tou 2 du si bing tong guo zhui xiao 9 he 22 yu huo sai 8 xiang lian
左移动。在这99伴奏网里，缸盖18和24是通过螺钉(图中未画出)与压板11和20相连，并经钢丝环12相连，左缸
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定在床身上，缸体10固定在工作台上，工作台在径向孔c接通压力油，径向孔a接通回油时向右移动；反之则向
ding zai chuang shen shang gang ti 10 gu ding zai gong zuo tai shang gong zuo tai zai jing xiang kong c jie tong ya li you jing xiang kong a jie tong hui you shi xiang you yi dong fan zhi ze xiang
可见，液压缸的左右两腔99伴奏网是通过油口b和d经活塞杆1和15的中心孔与左右径向孔a和c相通的。由于活塞杆固
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磨环16—卡键帽18—活塞杆19—衬套20—缸底如图4-13所示为一空心双活塞杆式液压缸的结构。由图
mo huan 16 ka jian mao 18 huo sai gan 19 chen tao 20 gang di ru tu 4-13 suo shi wei yi kong xin shuang huo sai gan shi ye ya gang de jie gou you tu
套6、15—卡键7、14—o形密封圈8、12—y形密封圈9—缸盖兼导向套10—缸筒11—活塞13—耐
tao 6 15 ka jian 7 14 o xing mi feng quan 8 12 y xing mi feng quan 9 gang gai jian dao xiang tao 10 gang tong 11 huo sai 13 nai
销孔内有尼龙衬套抗磨。图4-12双作用单活塞杆液压缸1—耳环2—螺母99伴奏网3—防尘圈4、17—弹簧挡圈5—
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形圈7密封，而其内孔则由y形密封圈8和防尘圈3分别防止油外漏和灰尘带入缸内。缸与杆端销孔与外界连接，
xing quan 7 mi feng er qi nei kong ze you y xing mi feng quan 8 he fang chen quan 3 fen bie fang zhi you wai lou he hui chen dai ru gang nei gang yu gan duan xiao kong yu wai jie lian jie
导向。杆18和活塞11的内孔由密99伴奏网封圈14密封。较长的导向套9则可保证活塞杆不偏离中心，导向套外径由o
dao xiang gan 18 he huo sai 11 de nei kong you mi 99 ban zou wang feng quan 14 mi feng jiao chang de dao xiang tao 9 ze ke bao zheng huo sai gan bu pian li zhong xin dao xiang tao wai jing you o
y形聚氨酯密封圈12，由于活塞与缸孔有一定间隙，采用由尼龙1010制成的耐磨环(又叫支承环)13定心
y xing ju an zhi mi feng quan 12 you yu huo sai yu gang kong you yi ding jian xi cai yong you ni long 1010 zhi cheng de nai mo huan ( you jiao zhi cheng huan )13 ding xin
b。活塞11与活塞杆18利用卡键15、卡键帽16和弹簧挡圈17连在一起。活99伴奏网塞与缸孔的密封采用的是一对
b huo sai 11 yu huo sai gan 18 li yong ka jian 15 ka jian mao 16 he dan huang dang quan 17 lian zai yi qi huo 99 ban zou wang sai yu gang kong de mi feng cai yong de shi yi dui
与缸底焊接，另一端缸盖(导向套)与缸筒用卡键6、套5和弹簧挡圈4固定，以便拆装检修，两端设有油口a和
yu gang di han jie ling yi duan gang gai ( dao xiang tao ) yu gang tong yong ka jian 6 tao 5 he dan huang dang quan 4 gu ding yi bian chai zhuang jian xiu liang duan she you you kou a he
的双作用单活塞杆液压缸。它是由缸底20、缸筒199伴奏网0、缸盖兼导向套9、活塞11和活塞杆18组成。缸筒一端
de shuang zuo yong dan huo sai gan ye ya gang ta shi you gang di 20 gang tong 199 ban zou wang 0 gang gai jian dao xiang tao 9 huo sai 11 he huo sai gan 18 zu cheng gang tong yi duan
第三节液压缸的结构设计一、液压缸的典型结构和组成1.液压缸的典型结构举例图4-12所示的是一个较常用
di san jie ye ya gang de jie gou she ji yi ye ya gang de dian xing jie gou he zu cheng 1. ye ya gang de dian xing jie gou ju li tu 4-12 suo shi de shi yi ge jiao chang yong