機(jī)械專業(yè)外文文獻(xiàn)翻譯-外文翻譯--泵及其相關(guān)附件

<p>英文摘要翻譯 &nbsp;of is In up to a of in in or of is in to of on of in up is to a on &nbsp; it is in of of &nbsp;At to a is is a or to is A is at to in is a is of A is in of &nbsp;of is in is &nbsp;of a &nbsp;is by in on in to to is is by of is A is a it of a &nbsp; is a as an in of to a of of to on by &nbsp; is of to &nbsp;is it is of 1 is of &nbsp;of is so to &nbsp;is by 1 is by 1is by &nbsp;is is it on &nbsp;on a in a in as it is it on as or A in a in to to of be or In a on s a or As or of to of is of As in in to in as it as of be in a of of In be by to or of In on to of is in is by to in a so an As to in so as as In is by of as as a of In of is in a on to or be a on is by of is of s of a a by to a no to As it of is to is is by to to s to is to by at or A of is In a is is by As to to as in a do In a at an to by in of as A to to to to of in of 0 30In s an is to &nbsp;be to of to of It s a 20 In is to is As s to of is so up to as to A 20 is is in or to &nbsp;in a of to of in to to of to at is by as a be In be in of in In a be to or a of or s of is to a in an to In be to a s to a is be 714 Q=in is to in If in do a in In at is on of a on a on in is a a in be is is by of a of in is a of a an in In be of is do a of to or of of a a to an of a as an of a a of is by In to is at a in as is is a be by or to If is so a of of be in in at of at a to in or be in a In a a in be to be a to On on in by a or of in is it of be is &nbsp;F &nbsp;000 is in A in to is as a of of a in or to of a is to to is of a of of it is a of a it of of be to &nbsp; in be a of in a a in a in be it of is a of of in or in Of A a by to in of is to be to as to be on on in a of By of of a an or in a be as a be an or on of to of a of of a be by of by to an or of of of to be by to of to in be so a in be a of a to is by 0 00 F, a of &nbsp;T by be a of An in up or is an of of or is to be by an of &nbsp;泵及其相關(guān)附件 &nbsp;常見(jiàn)的用于液壓系統(tǒng)的往復(fù)式泵有：徑向柱塞泵，軸向柱塞泵，雙聯(lián)和三聯(lián)泵。對(duì)于我們來(lái)說(shuō)最熟悉的液壓泵是用于千斤頂上的。這種類型的泵在工作的時(shí)候，上下移動(dòng)手柄是活塞也以相同的形式移動(dòng)，活塞與缸體形成緊密的配合，在活塞向吸入裝置移動(dòng)的過(guò)程中，液體被從水向中吸入到泵中，吸入動(dòng)力由活塞通缸體的緊密配合產(chǎn)生。活塞向上移動(dòng)時(shí)，有一部分空氣從缸體中排出，致使港體內(nèi)的壓力小與周圍的大氣壓力，大氣壓力作用于水箱內(nèi)的液體的上表面，使液體順著管路進(jìn)入缸體內(nèi)部，這就是水被吸入的 原理。值得強(qiáng)調(diào)的是，因?yàn)楦垠w內(nèi)不同外面的大氣壓差是液體產(chǎn)生了流動(dòng)。 &nbsp;在泵的吸入管口處有一個(gè)球形閥。這個(gè)閥的材料是固體橡膠或是金屬，用以保證進(jìn)入缸體的液體不會(huì)泄露到外面。在泵處于停止?fàn)顟B(tài)時(shí)，也有個(gè)同樣的閥裝在缸體的進(jìn)液口處。這是個(gè)節(jié)流閥，保證液體不會(huì)從缸體流出。在泵的柱塞上也有同樣作用的密封圈。 &nbsp;在活柱上升的過(guò)程中，球閥的閥球離開(kāi)閥座，缸體內(nèi)的液體就隨著柱塞的移動(dòng)流到外面。 &nbsp;當(dāng)柱塞向上移動(dòng)到行程的頂部的時(shí)，經(jīng)過(guò)一段休止時(shí)間后才開(kāi)始向下的行程。在鄉(xiāng)下運(yùn)動(dòng)的過(guò)程中，缸體一段的閥的閥球在液力的作用下壓緊閥座，使閥關(guān) 閉就可以防止也踢得向外泄漏，并為泵的下一工作循環(huán)準(zhǔn)備。值得注意的是泵的工作行程是在柱塞在缸體中向上移動(dòng)的過(guò)程中，故而在泵的兩個(gè)行程中，旨在一個(gè)行程中作用，這種泵叫單向泵。同樣在泵的兩個(gè)行程中都工作的叫雙作用泵，雙作用泵的工作效率是但作用的兩倍。 &nbsp;操縱手把從左到右運(yùn)動(dòng)則柱塞也作相應(yīng)的運(yùn)動(dòng)。在柱塞向右運(yùn)動(dòng)的過(guò)程中，作用在液體上的力使閥球離開(kāi)閥座，閥被打開(kāi)。在另一端的閥的閥球則壓在閥座上，阻止液體回到箱體中。在一個(gè)閥的閥球離開(kāi)閥座時(shí)，液體從右邊流出泵，在同一過(guò)程中，另一側(cè)的閥打開(kāi)，液體進(jìn)入泵的腔室內(nèi)，當(dāng)柱塞從誘導(dǎo) 運(yùn)動(dòng)時(shí)，閥門(mén)被彈簧關(guān)閉。 &nbsp;所有的柱塞泵都以這樣一個(gè)原則運(yùn)動(dòng)，那就是隨著柱塞的往復(fù)運(yùn)動(dòng)吸入和排出液體。這類泵有兩種基本的結(jié)構(gòu)分別是軸向泵和徑向泵。兩種泵都可以做成定量的或者是變量的。在徑向泵中，柱塞按徑向排列在缸體內(nèi)，同樣在軸向泵中柱塞以平行于缸體主軸的方向排列在缸套中。軸向泵又可以分為直軸式和斜軸式兩種結(jié)構(gòu)。 &nbsp;在徑向泵中，在缸體內(nèi)轉(zhuǎn)子圈或回轉(zhuǎn)輪繞固定的樞軸轉(zhuǎn)動(dòng)。當(dāng)缸體回轉(zhuǎn)時(shí)離心力注入壓力或某種形式的機(jī)械作用力使柱塞時(shí)時(shí)頂在定子圈的內(nèi)表面上，定子圈配置在偏離缸體中心線的位置。隨著柱塞在缸體內(nèi)的往復(fù)運(yùn)動(dòng)和樞軸的</p>