SEEHONG磁性感應(yīng)開(kāi)關(guān)_氣缸感應(yīng)傳感器,接近開(kāi)關(guān)
液壓油缸參數(shù)設(shè)計(jì)注意事項(xiàng)
液壓油缸參數(shù)設(shè)計(jì)要注意些什么呢?
(1)液壓缸設(shè)計(jì)應(yīng)盡量避免采用非標(biāo)尺寸液壓缸的很多尺寸都是根據(jù)具體需要設(shè)計(jì)的,但是在選取這些尺寸時(shí)。必須考慮到標(biāo)準(zhǔn)尺寸上。尤其是缸筒內(nèi)徑、缸桿直徑、密封圈有關(guān)的尺寸等更不能按實(shí)際需要任意選取,否則可能選不到合適的密封圈。
(2)液壓缸的安全系數(shù)不能過(guò)小液壓缸在工作過(guò)程中要承受液壓力、機(jī)械力,同時(shí),由于材料、材料的均一性、應(yīng)力集中、加工精度及材料疲勞極限的影響,使得液壓缸的工作強(qiáng)度變化范圍較大。因此,必須有足夠的安全系數(shù),一般應(yīng)在5以上。
(3)活塞桿導(dǎo)向長(zhǎng)度不宜過(guò)小,導(dǎo)向套的長(zhǎng)度一般因液壓缸的大小和活塞桿密封的種類(lèi)和用途而異,但一般應(yīng)在活塞桿直徑的0.6倍以上,以保證活塞桿有足夠的穩(wěn)定度。
(4)高速、長(zhǎng)行程液壓缸的導(dǎo)向套避免采用一般結(jié)構(gòu)對(duì)于速度大于1000mm/s,行程在4000mm以上的液壓缸來(lái)說(shuō),由于高速動(dòng)作所産生的局部過(guò)熱,會(huì)造成導(dǎo)向套顯著磨損,并出現(xiàn)金屬粉末。這不僅從結(jié)構(gòu)上對(duì)導(dǎo)向套的表面進(jìn)行強(qiáng)制潤(rùn)滑,而且也需要對(duì)活塞桿表面進(jìn)行高頻淬火等特殊處理,同時(shí).也可考慮使用靜壓軸承。
(5)在保證能滿足運(yùn)動(dòng)行程和負(fù)載力的條件下,應(yīng)避免液壓缸的輪廓尺寸過(guò)大。
(6)避免液壓缸的活塞桿在受壓狀態(tài)下承受最大負(fù)載,應(yīng)保證其在受壓狀態(tài)下具有良好的穩(wěn)定性。
(7)禁忌忽略缸筒必要的形位公差爲(wèi)保證液壓缸有較低的起動(dòng)壓力和在運(yùn)動(dòng)中不發(fā)生“別勁”現(xiàn)象,應(yīng)對(duì)缸筒的形位公差給以足夠的注意。一般情況下,缸筒內(nèi)徑的圓度、圓柱度誤差不能大于缸筒直徑尺寸公差的一半;缸筒軸線的直線度誤差每500mm長(zhǎng)度上不大于0.03mm ;缸筒端面對(duì)缸筒軸線的圓跳動(dòng)每100mm不大于0.04mm。
(8)禁忌忽略液壓缸耳環(huán)的位置公差耳環(huán)式液壓缸的耳環(huán)孔對(duì)缸筒軸線的位置誤差不大于0.03mm。
(9)禁忌忽略銷(xiāo)軸式液壓缸的位呈公差銷(xiāo)軸式液壓缸銷(xiāo)的軸線位置公差不大于0.1mm,垂直度誤差在100mm長(zhǎng)度上不大于0.1mm。
YIDA-21R YIDA-32RH YIDA-11N YIDA-07R-EG2R YIDA-66N-NC YIDA-66P-NC YIDA-01R YIDA-01RD YIDA-01N YIDA-01P YIDA-02R YIDA-02RD YIDA-02N YIDA-02P YIDA-03R YIDA-03RD YIDA-03N YIDA-03P YIDA-04R YIDA-04RD YIDA-04N YIDA-04P YIDA-05R YIDA-05RD YIDA-05N YIDA-05P YIDA-06R YIDA-06RD YIDA-06N YIDA-06P YIDA-07R YIDA-07RD YIDA-07N YIDA-07P YIDA-08R YIDA-08RD YIDA-08N YIDA-08P YIDA-09R YIDA-09RD YIDA-09N YIDA-09P YIDA-10R YIDA-10RD YIDA-10N YIDA-10P YIDA-11R YIDA-11RD YIDA-11P YIDA-12R YIDA-12RD YIDA-12N YIDA-12P YIDA-13R YIDA-13RD YIDA-13N YIDA-13P YIDA-14R YIDA-14N YIDA-14P YIDA-15R YIDA-15RD YIDA-15N YIDA-15P YIDA-16R YIDA-16RD YIDA-16N YIDA-16P YIDA-17R YIDA-17RD YIDA-17N YIDA-17P YIDA-18R YIDA-18RD YIDA-18N YIDA-18P YIDA-19R YIDA-19RD YIDA-19N YIDA-19P YIDA-20R YIDA-20RD YIDA-20N YIDA-20P YIDA-21RD YIDA-21N YIDA-21P YIDA-22R YIDA-22RD YIDA-22N YIDA-22P YIDA-23R YIDA-23RD YIDA-23N YIDA-23P YIDA-24R YIDA-24RD YIDA-24N YIDA-24P YIDA-25R YIDA-25RD YIDA-25N YIDA-25P YIDA-26R YIDA-26RD YIDA-26N YIDA-26P YIDA-27R YIDA-27RD YIDA-27N YIDA-27P YIDA-28R YIDA-28RD YIDA-28N YIDA-28P YIDA-29R YIDA-29RD YIDA-29N YIDA-29P YIDA-30R YIDA-30RD YIDA-30N YIDA-30P YIDA-31R YIDA-31RD YIDA-31N YIDA-31P YIDA-32R YIDA-32RD YIDA-32N YIDA-32P YIDA-33R YIDA-33RD YIDA-33N YIDA-33P YIDA-34R YIDA-34RD YIDA-34N YIDA-34P YIDA-35R YIDA-35RD YIDA-35N YIDA-35P YIDA-36R YIDA-36RD YIDA-36N YIDA-36P YIDA-37R YIDA-37RD YIDA-37N YIDA-37P YIDA-38R YIDA-38RD YIDA-38N YIDA-38P YIDA-39R YIDA-39RD YIDA-39N YIDA-39P YIDA-40R YIDA-40RV YIDA-40RD YIDA-40N YIDA-40P YIDA-41R YIDA-41RV YIDA-41RD YIDA-41N YIDA-41P YIDA-42R YIDA-42RV YIDA-42RD YIDA-42N YIDA-42P YIDA-43R YIDA-43RV YIDA-43RD YIDA-43N YIDA-43P YIDA-44R YIDA-44RV YIDA-44RD YIDA-44N YIDA-44P YIDA-50R YIDA-50RV YIDA-50RD YIDA-50N YIDA-50P YIDA-51R YIDA-51RV YIDA-51RD YIDA-51N YIDA-51P YIDA-70R YIDA-70RV YIDA-70RD YIDA-70N YIDA-70P YIDA-71R YIDA-71RV YIDA-71RD YIDA-71N YIDA-71P YIDA-72R YIDA-72RD YIDA-72N YIDA-72P
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