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彈性連桿式振動輸送機作為雙質體機構時,其結構由槽體(上質體)、機架(下質體)、主振彈簧、隔振彈簧、支撐彈簧、支撐擺桿(亦稱導向連桿)、驅動連桿、偏心軸,以及電動機、皮帶輪和三角膠帶等組成。
當電動(dong)(dong)(dong)機(ji)通過三角膠帶傳動(dong)(dong)(dong),帶動(dong)(dong)(dong)偏(pian)心軸轉動(dong)(dong)(dong)時,利(li)用(yong)驅動(dong)(dong)(dong)連桿(gan)和(he)主振(zhen)(zhen)(zhen)(zhen)彈(dan)簧來(lai)激振(zhen)(zhen)(zhen)(zhen)參(can)振(zhen)(zhen)(zhen)(zhen)槽體沿一定激振(zhen)(zhen)(zhen)(zhen)方向作(zuo)直線往復運(yun)動(dong)(dong)(dong),從(cong)而(er)帶動(dong)(dong)(dong)物料、工件作(zuo)定向拋擲運(yun)動(dong)(dong)(dong)來(lai)實現振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)輸(shu)(shu)送之(zhi)目的(de)。彈(dan)性(xing)(xing)連桿(gan)式(shi)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)輸(shu)(shu)送機(ji)為(wei)(wei)近共(gong)振(zhen)(zhen)(zhen)(zhen)類振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)機(ji),當振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)機(ji)為(wei)(wei)單質體時(無隔振(zhen)(zhen)(zhen)(zhen)彈(dan)簧條件下),振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)慣性(xing)(xing)力較大,傳給基礎的(de)動(dong)(dong)(dong)載較大,勢必會產(chan)生不(bu)穩(wen)定因素而(er)且易使(shi)機(ji)件、鉸支點損壞(huai),振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)噪(zao)音大,通常彈(dan)性(xing)(xing)連桿(gan)式(shi)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)輸(shu)(shu)送機(ji)結構都采(cai)用(yong)隔振(zhen)(zhen)(zhen)(zhen)彈(dan)簧,使(shi)機(ji)架和(he)參(can)振(zhen)(zhen)(zhen)(zhen)槽體形成(cheng)雙(shuang)質體型式(shi);而(er)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)形式(shi)仍為(wei)(wei)線性(xing)(xing)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong),有利(li)于生產(chan)應用(yong)。
雙(shuang)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)結構的振(zhen)(zhen)動(dong)輸送(song)機工作時,兩質(zhi)(zhi)(zhi)體(ti)(ti)(ti)運動(dong)方向相(xiang)(xiang)反,慣(guan)性(xing)力(li)方向相(xiang)(xiang)反;當二(er)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)相(xiang)(xiang)當時,二(er)慣(guan)性(xing)力(li)可相(xiang)(xiang)對達到平(ping)(ping)(ping)衡(heng)(heng),面在(zai)實(shi)際設計和(he)(he)生(sheng)產(chan)應用中,二(er)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)的質(zhi)(zhi)(zhi)量(liang)(liang)(liang)始(shi)終是變(bian)化不斷的,很難完全(quan)相(xiang)(xiang)等(deng)。在(zai)物料輸送(song)中,上(shang)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)的質(zhi)(zhi)(zhi)量(liang)(liang)(liang)不斷交(jiao)替變(bian)化,不可能同下(xia)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)相(xiang)(xiang)平(ping)(ping)(ping)衡(heng)(heng),仍會(hui)使(shi)大部分未(wei)平(ping)(ping)(ping)衡(heng)(heng)慣(guan)性(xing)力(li)傳遞到基礎,因(yin)此考慮(lv)基礎的承(cheng)載(zai)能力(li)應進一步平(ping)(ping)(ping)衡(heng)(heng)減振(zhen)(zhen),如利(li)(li)用下(xia)質(zhi)(zhi)(zhi)體(ti)(ti)(ti)配(pei)加配(pei)重(zhong)(zhong)塊(kuai)來(lai)平(ping)(ping)(ping)衡(heng)(heng)慣(guan)性(xing)力(li),或(huo)對隔振(zhen)(zhen)彈簧的剛性(xing)處理和(he)(he)結構布置等(deng)讓(rang)傳遞給基礎的動(dong)載(zai)荷(he)減少(shao)到較(jiao)小,使(shi)整個機構的振(zhen)(zhen)動(dong)趨于(yu)平(ping)(ping)(ping)衡(heng)(heng)。試驗證明機架質(zhi)(zhi)(zhi)量(liang)(liang)(liang)應略大于(yu)槽體(ti)(ti)(ti)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)和(he)(he)物料重(zhong)(zhong)量(liang)(liang)(liang)之和(he)(he),才有利(li)(li)于(yu)各振(zhen)(zhen)動(dong)機構的運作正常。
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