專業(yè)分析REXROTH柱塞泵的優(yōu)劣勢
REXROTH柱塞泵的優(yōu)勢:
1、可輕易處理高粘度涂料;
2、在噴嘴相同的條件下可產(chǎn)生更高的壓力霧化更好;
3、可進行長時間的工作(24小時工作);
4、更能承受艱苦的使用環(huán)境;
5、維護費用低,容易維修;
6、吸料容易;
7、僅在要求噴涂時才運行。
REXROTH柱塞泵的劣勢:
1、制造成本較高;
2、購置成本較高隔膜泵利用偏心軸承和活塞產(chǎn)生運動以帶動膜片運動和給涂料加壓。當馬達旋轉(zhuǎn)時,偏心軸承也隨之旋轉(zhuǎn),活塞的一端依靠在偏心軸承上。偏心軸承的旋轉(zhuǎn),使活塞產(chǎn)生上下運動,當活塞下行時,膜片被壓下,進口閥打開吸料。當活塞上行時,膜片被上頂,進口閥關(guān)閉,出口閥打開,壓送涂料。全過程靠隔膜波動吸料并產(chǎn)生壓力,要求隔膜在高壓的環(huán)境中每分鐘波動1700次以上,致使隔膜等容易損壞!
REXROTH柱塞泵是將直流電動機帶動柱塞復運動將涂料吸入,加壓后排出,由于其柱塞裸露,且柱塞在涂料中工作,在涂料研磨作用下柱塞磨損非???,一旦配備口徑較大的噴嘴,其柱塞往復頻率提高,加劇柱塞的磨損,機器壽命短。而更換柱塞價格非常昂貴,如果電壓不正常也將直接導致工作直流電的不正常。另外,由于大幅來回往復運動,REXROTH柱塞泵的工作脈動很大,使得噴涂不穩(wěn)定,涂料噴上的墻面平整度就不夠好。但REXROTH柱塞泵初始吸料較快是其長處。
REXROTH類目:
REXROTH柱塞泵,REXROTH齒輪泵 REXROTH葉片泵,REXROTH電磁閥 REXROTH換向閥,REXROTH油泵, REXROTH導軌, Rexroth中匯液壓, REXROTH滾珠絲桿REXROTH滑塊, REXROTH比例閥,REXROTH壓力閥 REXROTH傳感器,REXROTH馬達 REXROTH伺服閥,REXROTH繼電器
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