
威海力建液壓設備(bei)廠
經(jing)營模式:生產(chan)加工
地址:山東省威海市羊亭孫家灘工業園
主營:液壓缸(gang),油缸(gang),液壓系(xi)統
業務熱線:
QQ:3049278720
在設計(ji)和加(jia)工(gong)環節中要(yao)充分(fen)考慮影響泄漏的重要(yao)因(yin)素密封溝槽的設計(ji)和加(jia)工(gong)。美國汽車行業工(gong)程師協(xie)會(SAE)推薦以下(xia)兩(liang)種防止油(you)口漏油(you)的解決辦法。
①SAE直螺紋“O”形圈油口:密封(feng)靠(kao)“O”形圈,連接靠(kao)直螺紋;
②SAE4螺栓法蘭:適(shi)用(yong)于較大油口(kou)。
另外,密封件的選擇也(ye)是非常(chang)重要(yao)的,密封表面(mian)的粗糙度通常(chang)靜密封表為Ra3.2~Ra1.6,動密封表面(mian)為Ra0.8~Ra0.4。如果不在開始多方面(mian)考(kao)慮(lv)泄漏(lou)的影(ying)響因素(su),將會給以后(hou)的生產中帶來無法估量的損失。
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液壓傳動中用(yong)來(lai)控制液體(ti)壓力、流量和方(fang)向(xiang)的元件。其中控制通、斷和流向(xiang)的稱為方(fang)向(xiang)控制閥。
方向(xiang)控(kong)制閥(fa)(fa)按用途(tu)分為單向(xiang)閥(fa)(fa)和換向(xiang)閥(fa)(fa)。
1、單向(xiang)閥:只允許流體在管道中單向(xiang)接通(tong),反向(xiang)即切(qie)斷。
2、換向閥(fa)(fa):改變不同管路間的(de)通(tong)(tong)(tong)(tong)(tong)、斷關系、根(gen)(gen)(gen)據(ju)(ju)閥(fa)(fa)芯在閥(fa)(fa)體(ti)中的(de)工作位置數分(fen)(fen)兩位、三(san)(san)位等;根(gen)(gen)(gen)據(ju)(ju)所控制(zhi)的(de)通(tong)(tong)(tong)(tong)(tong)道數分(fen)(fen)兩通(tong)(tong)(tong)(tong)(tong)、三(san)(san)通(tong)(tong)(tong)(tong)(tong)、四(si)通(tong)(tong)(tong)(tong)(tong)、五通(tong)(tong)(tong)(tong)(tong)等;如二位二通(tong)(tong)(tong)(tong)(tong)、三(san)(san)位三(san)(san)通(tong)(tong)(tong)(tong)(tong),三(san)(san)位五通(tong)(tong)(tong)(tong)(tong)等根(gen)(gen)(gen)據(ju)(ju)閥(fa)(fa)芯驅動方式分(fen)(fen)手動、機(ji)動、電磁、液動等。
60年代后期,在上(shang)述幾種液(ye)(ye)壓控(kong)制閥的(de)基(ji)礎上(shang)又研制出電液(ye)(ye)比(bi)例(li)(li)(li)控(kong)制閥。它的(de)輸(shu)(shu)出量(liang)(壓力(li)、流量(liang))能隨(sui)輸(shu)(shu)入(ru)的(de)電信號連續(xu)變化。電液(ye)(ye)比(bi)例(li)(li)(li)控(kong)制閥按作用不同,相應地分(fen)為電液(ye)(ye)比(bi)例(li)(li)(li)壓力(li)控(kong)制閥、電液(ye)(ye)比(bi)例(li)(li)(li)流量(liang)控(kong)制閥和(he)電液(ye)(ye)比(bi)例(li)(li)(li)方向(xiang)控(kong)制閥等。
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液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)站又(you)稱為液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)站,系統元件主(zhu)要是(shi)由(you)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)、液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)缸、液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)馬(ma)達、液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)閥等構(gou)成的。液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)是(shi)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)系統的心臟,簡稱油泵(beng)(beng)。在液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)系統中,一定(ding)至(zhi)少(shao)有一個泵(beng)(beng)。液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)泵(beng)(beng)是(shi)一種能量轉換(huan)裝置,它的作用是(shi)使(shi)液(ye)(ye)(ye)(ye)(ye)體(ti)發生運動,把(ba)機械(xie)能轉換(huan)成流體(ti)能(也叫做液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)能)。液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)系統
泵是液(ye)壓(ya)(ya)傳動(dong)(dong)系(xi)統中(zhong)的(de)動(dong)(dong)力元(yuan)件,由(you)原(yuan)動(dong)(dong)機驅動(dong)(dong),從原(yuan)動(dong)(dong)機的(de)輸出功(gong)率中(zhong)取出機械能(neng),為(wei)系(xi)統提供壓(ya)(ya)力油液(ye)。然后,在需要做(zuo)功(gong)的(de)場(chang)所,由(you)執行(xing)元(yuan)件(液(ye)壓(ya)(ya)缸(gang)或液(ye)壓(ya)(ya)馬達(da))再把流體壓(ya)(ya)力能(neng)轉換(huan)成(cheng)機械能(neng)輸出。