真空吸料(liao)(liao)機(ji)的(de)(de)運用(yong)十分普遍,由(you)于其(qi)出現很好(hao)的(de)(de)解(jie)決了三(san)維混合機(ji)、V型混料(liao)(liao)機(ji)靠人力(li)投(tou)料(liao)(liao)時出現的(de)(de)職工勞動效率(lv)較大,煙塵外(wai)流等一(yi)系(xi)列的(de)(de)難點(dian)。原材料(liao)(liao)根(gen)據吸料(liao)(liao)管進(jin)到混料(liao)(liao)機(ji)內,在給混料(liao)(liao)機(ji)投(tou)料(liao)(liao)的(de)(de)全過程中,將有(you)小(xiao)量的(de)(de)原材料(liao)(liao)進(jin)到放料(liao)(liao)桶(tong),可根(gen)據放料(liao)(liao)桶(tong)下的(de)(de)快張口(kou)收入原材料(liao)(liao)。
真空上料機氣(qi)(qi)壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)選(xuan)用(yong)滾(gun)動(dong)(dong)(dong)(dong)摩擦的(de)(de)(de)方式,限制產品工件在(zai)軸(zhou)(zhou)向(xiang)的(de)(de)(de)部位,滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)需要(yao)潤化,氣(qi)(qi)壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)和負壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)潤化方法不一樣,總的(de)(de)(de)來說,負壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)各種各樣特性(xing)要(yao)好于氣(qi)(qi)壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng),但氣(qi)(qi)壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)成本(ben)費(fei)稍(shao)低。在(zai)氣(qi)(qi)壓(ya)(ya)(ya)滾(gun)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)中,因為作用(yong)力、不平(ping)衡(heng)感等(deng),馬達(da)軸(zhou)(zhou)向(xiang)相對性(xing)對活塞(sai)銷產生(sheng)軸(zhou)(zhou)力,從而(er)產生(sheng)收(shou)斂和散(san)(san)發(fa)的(de)(de)(de)油(you)楔,增大收(shou)斂油(you)楔內的(de)(de)(de)壓(ya)(ya)(ya)力,降(jiang)低散(san)(san)發(fa)油(you)楔內的(de)(de)(de)壓(ya)(ya)(ya)力,進而(er)產生(sheng)承(cheng)(cheng)(cheng)(cheng)(cheng)載能力。
由于真空(kong)上料機上氣壓(ya)滾動(dong)軸(zhou)承的作用力、不平衡感等(deng)原因,電機軸(zhou)相對于活塞銷產生(sheng)軸(zhou)力,從而產生(sheng)收斂和散(san)(san)發(fa)的油(you)(you)楔(xie),使收斂性油(you)(you)楔(xie)工(gong)作壓(ya)力增大,散(san)(san)發(fa)油(you)(you)楔(xie)工(gong)作壓(ya)力降(jiang)低,從而產生(sheng)承載能力。
根據(ju)連續液(ye)態實體模型計算,由于真空上(shang)料機氣(qi)(qi)(qi)穴現象的產生,浮(fu)油(you)(you)的工作壓(ya)力(li)(li)(li)(li)一(yi)般比消耗(hao)和(he)環境(jing)(jing)壓(ya)力(li)(li)(li)(li)小(xiao)(xiao)得(de)多。實際上(shang),當浮(fu)油(you)(you)的工作壓(ya)力(li)(li)(li)(li)略低于消耗(hao)和(he)環境(jing)(jing)壓(ya)力(li)(li)(li)(li)時,浮(fu)油(you)(you)中(zhong)的溶解氣(qi)(qi)(qi)泡(pao)就會形成氣(qi)(qi)(qi)泡(pao)團,進(jin)而在(zai)散發楔中(zhong)形成兩(liang)相(xiang)流(liu)動(dong),兩(liang)相(xiang)液(ye)體的延展性較小(xiao)(xiao),因(yin)此浮(fu)油(you)(you)的工作壓(ya)力(li)(li)(li)(li)沒有進(jin)一(yi)步降低,基礎(chu)的平穩性略低于大氣(qi)(qi)(qi)壓(ya)力(li)(li)(li)(li)。因(yin)此一(yi)般認為,散發楔中(zhong)的浮(fu)油(you)(you)壓(ya)力(li)(li)(li)(li)是消耗(hao)和(he)環境(jing)(jing)壓(ya)力(li)(li)(li)(li)。
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