年前*smc氣缸smc氣缸選型報價
SMC氣缸是由缸筒、端蓋、活塞、活塞桿和密封件組成，其內(nèi)部結(jié)：SMC氣缸原理圖1）缸筒
缸筒的內(nèi)徑大小代表了氣缸輸出力的大小?；钊诟淄矁?nèi)做平穩(wěn)的往復(fù)滑動，缸筒內(nèi)表面的表面粗糙度應(yīng)達(dá)到Ra0.8um。對鋼管缸筒，內(nèi)表面還應(yīng)鍍硬鉻，以減小摩擦阻力和磨損，并能防止銹蝕。缸筒材質(zhì)除使用高碳鋼管外，還是用高強(qiáng)度鋁合金和黃銅。小型氣缸有使用不銹鋼管的。帶磁性開關(guān)的氣缸或在耐腐蝕環(huán)境中使用的氣缸，缸筒應(yīng)使用不銹鋼、鋁合金或黃銅等材質(zhì)。SMC
氣缸活塞上采用組合密封圈實現(xiàn)雙向密封，活塞與活塞桿用壓鉚鏈接，不用螺母。2）端蓋  
端蓋上設(shè)有進(jìn)排氣通口，有的還在端蓋內(nèi)設(shè)有緩沖機(jī)構(gòu)。桿側(cè)端蓋上設(shè)有密封圈和防塵圈，以防止從活塞桿處向外漏氣和防止外部灰塵混入缸內(nèi)。桿側(cè)端蓋上設(shè)有導(dǎo)向套，以提高氣缸的導(dǎo)向精度，承受活塞桿上少量的橫向負(fù)載，減小活塞桿伸出時的下彎量，延長氣缸使用壽命。導(dǎo)向套通常使用燒結(jié)含油合金、前傾銅鑄件。端蓋過去常用可鍛鑄鐵，現(xiàn)在為減輕重量并防銹，常使用鋁合金壓鑄，微型缸有使用黃銅材料的。3）活塞
活塞是氣缸中的受壓力零件。為防止活塞左右兩腔相互竄氣，設(shè)有活塞密封圈?；钊系哪湍キh(huán)可提高氣缸的導(dǎo)向性，減少活塞密封圈的磨耗，減少摩擦阻力。耐磨環(huán)長使用聚氨酯、聚四氟乙烯、夾布合成樹脂等材料?；钊膶挾扔擅芊馊Τ叽绾捅匾幕瑒硬糠珠L度來決定?；瑒硬糠痔?，易引起早期磨損和卡死?；钊牟馁|(zhì)常用鋁合金和鑄鐵，小型缸的活塞有黃銅制成的。
緩沖氣缸對于接近行程末端時速度較高的氣缸，不采取必要措施，活塞就會以很大的力(能量)撞擊端蓋，引起振動和損壞機(jī)件。為了使活塞在行程末端運動平穩(wěn)，不產(chǎn)生沖擊現(xiàn)象。在氣缸兩端加設(shè)緩沖裝置，一般稱為緩沖氣缸。其工作原理是：當(dāng)活塞在壓縮空氣推動下向右運動時，缸右腔的氣體經(jīng)柱塞孔4及缸蓋上的氣孔8排出。在活塞運動接近行程末端時，活塞右側(cè)的緩沖柱塞3將柱塞孔4堵死、活塞繼續(xù)向右運動時，封在氣缸右腔內(nèi)的剩余氣體被壓縮，緩慢地通過節(jié)流閥6及氣孔8排出，被壓縮的氣體所產(chǎn)生的壓力能如果與活塞運動所具有的全部能量相平衡，即會取得緩沖效果，使活塞在行程末端運動平穩(wěn)，不產(chǎn)生沖擊。調(diào)節(jié)節(jié)流閥6閥口開度的大小，即可控制排氣量的多少，從而決定了被壓縮容積(稱緩沖室)內(nèi)壓力的大小，以調(diào)節(jié)緩沖效果。若令活塞反向運動時，從氣孔8輸入壓縮空氣，可直接頂開單向閥5，推動活塞向左運動。如節(jié)流閥6閥口開度固定，不可調(diào)節(jié)，即稱為不可調(diào)緩沖氣缸。

年前*smc氣缸smc氣缸選型報價

1.氣缸的選型步驟氣缸的選型應(yīng)根據(jù)工作要求和條件,正確選擇氣缸的類型.下面以單活塞桿雙作用缸為例介紹氣缸的選型步驟.
 
  (1)氣缸缸徑.根據(jù)氣缸負(fù)載力的大小來確定氣缸的輸出力,由此計算出氣缸的缸徑.
  (2)氣缸的行程.氣缸的行程與使用的場合和機(jī)構(gòu)的行程有關(guān),但一般不選用滿行程.
  (3)氣缸的強(qiáng)度和穩(wěn)定性計算
  (4)氣缸的安裝形式.氣缸的安裝形式根據(jù)安裝位置和使用目的等因素決定.一般情況下,采用固定式氣缸.在需要隨工作機(jī)構(gòu)連續(xù)回轉(zhuǎn)時(如車床,磨床等),應(yīng)選用回轉(zhuǎn)氣缸.在活塞桿除直線運動外,還需作圓弧擺動時,則選用軸銷式氣缸.有特殊要求時,應(yīng)選用相應(yīng)的特種氣缸.
  (5)氣缸的緩沖裝置.根據(jù)活塞的速度決定是否應(yīng)采用緩沖裝置.  南寧smc氣缸
  (6)磁性開關(guān).當(dāng)氣動系統(tǒng)采用電氣控制方式時,可選用帶磁性開關(guān)的氣缸.
  (7)其它要求.如氣缸工作在有灰塵等惡劣環(huán)境下,需在活塞桿伸出端安裝防塵罩.要求無污染時需選用無給油或無油潤滑氣缸.

  2.氣缸直徑計算氣缸直徑的設(shè)計計算需根據(jù)其負(fù)載大小,運行速度和系統(tǒng)工作壓力來決定.首先,根據(jù)氣缸安裝及驅(qū)動負(fù)載的實際工況,分析計算出氣缸軸向?qū)嶋H負(fù)載f,再由氣缸平均運行速度來選定氣缸的負(fù)載率θ,初步選定氣缸工作壓力(一般為0.4mpa～0.6mpa),再由f/θ,計算出氣缸理論出力ft,zui后計算出缸徑及桿徑,并按標(biāo)準(zhǔn)圓整得到實際所需的缸徑和桿徑.例題氣缸推動工件在水平導(dǎo)軌上運動.已知工件等運動件質(zhì)量為m=250kg,工件與導(dǎo)軌間的摩擦系數(shù)=0.25,氣缸行程s為400mm,經(jīng)1.5s時間工件運動到位,系統(tǒng)工作壓力p=0.4mpa,試選定氣缸直徑.解:氣缸實際軸向負(fù)載f=mg=0.25×250×9.81=613.13n氣缸平均速度s400v==≈267mm/st1.5選定負(fù)載率θ=0.5則氣缸理論輸出力f1=f雙作用氣缸理論推力θ=613.13=1226.6n0.51f1=πd2p4氣缸直徑按標(biāo)準(zhǔn)選定氣缸缸徑為63mm.d=4ft4×1226.3=≈62.48mmπp3.14

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CDJ2B164040BC11
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CDJ2B164530XC11
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CDJ2B16-45A-B

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