聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)是指聯(lian)(lian)(lian)(lian)(lian)接(jie)兩(liang)(liang)軸(zhou)(zhou)或軸(zhou)(zhou)與(yu)回(hui)轉(zhuan)件(jian)(jian)(jian)(jian)，在(zai)(zai)傳(chuan)遞運(yun)動(dong)和(he)動(dong)力(li)(li)過(guo)程中一同回(hui)轉(zhuan)，在(zai)(zai)正常情(qing)況下不脫開的(de)一種裝置。有(you)(you)(you)(you)時也(ye)(ye)作為一種安全裝置用(yong)(yong)(yong)(yong)(yong)來防止(zhi)被聯(lian)(lian)(lian)(lian)(lian)接(jie)機(ji)件(jian)(jian)(jian)(jian)承(cheng)受(shou)過(guo)大的(de)載荷，起(qi)到過(guo)載保(bao)護(hu)的(de)作用(yong)(yong)(yong)(yong)(yong)。聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)又(you)稱(cheng)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)節(jie)。用(yong)(yong)(yong)(yong)(yong)來將不同機(ji)構(gou)(gou)中的(de)主動(dong)軸(zhou)(zhou)和(he)從動(dong)軸(zhou)(zhou)牢固地聯(lian)(lian)(lian)(lian)(lian)接(jie)起(qi)來一同旋轉(zhuan)，并傳(chuan)遞運(yun)動(dong)和(he)扭(niu)矩(ju)(ju)的(de)機(ji)械部件(jian)(jian)(jian)(jian)。有(you)(you)(you)(you)時也(ye)(ye)用(yong)(yong)(yong)(yong)(yong)以聯(lian)(lian)(lian)(lian)(lian)接(jie)軸(zhou)(zhou)與(yu)其他零件(jian)(jian)(jian)(jian)（如齒輪、帶輪等(deng)）。常由兩(liang)(liang)半合成(cheng)，分別用(yong)(yong)(yong)(yong)(yong)鍵或緊(jin)配(pei)合等(deng)聯(lian)(lian)(lian)(lian)(lian)接(jie)，緊(jin)固在(zai)(zai)兩(liang)(liang)軸(zhou)(zhou)端，再通過(guo)某種方式將兩(liang)(liang)半聯(lian)(lian)(lian)(lian)(lian)接(jie)起(qi)來。聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)可兼(jian)有(you)(you)(you)(you)補(bu)償(chang)(chang)(chang)兩(liang)(liang)軸(zhou)(zhou)之間由于制造(zao)安裝不精確、工作時的(de)變形或熱膨脹等(deng)原(yuan)因所發生的(de)偏(pian)(pian)移（包(bao)括軸(zhou)(zhou)向偏(pian)(pian)移、徑向偏(pian)(pian)移、角偏(pian)(pian)移或綜(zong)合偏(pian)(pian)移）；以及(ji)緩(huan)和(he)沖(chong)擊(ji)、吸(xi)振(zhen)。剛性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)不具(ju)有(you)(you)(you)(you)緩(huan)沖(chong)性(xing)(xing)(xing)和(he)補(bu)償(chang)(chang)(chang)兩(liang)(liang)軸(zhou)(zhou)線(xian)相(xiang)對(dui)(dui)位(wei)移的(de)能(neng)力(li)(li)，要求兩(liang)(liang)軸(zhou)(zhou)嚴格對(dui)(dui)中，但(dan)(dan)此類(lei)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)結構(gou)(gou)簡單，制造(zao)成(cheng)本較(jiao)低(di)維便，能(neng)保(bao)證兩(liang)(liang)軸(zhou)(zhou)有(you)(you)(you)(you)較(jiao)高的(de)對(dui)(dui)中性(xing)(xing)(xing)，傳(chuan)遞轉(zhuan)矩(ju)(ju)較(jiao)大，應(ying)用(yong)(yong)(yong)(yong)(yong)廣泛。常用(yong)(yong)(yong)(yong)(yong)的(de)有(you)(you)(you)(you)凸緣聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)、套筒聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)和(he)夾殼(ke)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)等(deng).撓性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)又(you)可分為無彈(dan)(dan)(dan)性(xing)(xing)(xing)元(yuan)(yuan)件(jian)(jian)(jian)(jian)撓性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)和(he)有(you)(you)(you)(you)彈(dan)(dan)(dan)性(xing)(xing)(xing)元(yuan)(yuan)件(jian)(jian)(jian)(jian)撓性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，前一類(lei)只具(ju)有(you)(you)(you)(you)補(bu)償(chang)(chang)(chang)兩(liang)(liang)軸(zhou)(zhou)線(xian)相(xiang)對(dui)(dui)位(wei)移的(de)能(neng)力(li)(li)，但(dan)(dan)不能(neng)緩(huan)沖(chong)減振(zhen)，常見的(de)有(you)(you)(you)(you)滑塊聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)、齒式聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)、萬(wan)向聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)和(he)鏈(lian)條聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)等(deng)；后一類(lei)因含有(you)(you)(you)(you)彈(dan)(dan)(dan)性(xing)(xing)(xing)元(yuan)(yuan)件(jian)(jian)(jian)(jian)，除(chu)具(ju)有(you)(you)(you)(you)補(bu)償(chang)(chang)(chang)兩(liang)(liang)軸(zhou)(zhou)線(xian)相(xiang)對(dui)(dui)位(wei)移的(de)能(neng)力(li)(li)外，還具(ju)有(you)(you)(you)(you)緩(huan)沖(chong)和(he)減振(zhen)作用(yong)(yong)(yong)(yong)(yong)，但(dan)(dan)傳(chuan)遞的(de)轉(zhuan)矩(ju)(ju)因受(shou)到彈(dan)(dan)(dan)性(xing)(xing)(xing)元(yuan)(yuan)件(jian)(jian)(jian)(jian)強度的(de)限制，一般(ban)不及(ji)無彈(dan)(dan)(dan)性(xing)(xing)(xing)元(yuan)(yuan)件(jian)(jian)(jian)(jian)撓性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)。

溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)是一(yi)種液壓(ya)(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)控制閥(fa)(fa)(fa)(fa)，在(zai)(zai)液壓(ya)(ya)(ya)(ya)(ya)設備中主(zhu)要(yao)起定(ding)壓(ya)(ya)(ya)(ya)(ya)溢(yi)(yi)流(liu)(liu)(liu)(liu)，穩壓(ya)(ya)(ya)(ya)(ya)，系(xi)(xi)統卸荷和(he)(he)安(an)全保護作(zuo)用(yong)。溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)在(zai)(zai)裝配(pei)或使用(yong)中，由于(yu)O形密封圈、組合密封圈的(de)(de)(de)(de)損壞，或者(zhe)安(an)裝螺釘(ding)、管接(jie)頭的(de)(de)(de)(de)松動(dong)(dong)(dong)，都可(ke)能造成不應有(you)(you)的(de)(de)(de)(de)外泄漏。液壓(ya)(ya)(ya)(ya)(ya)裝置(zhi)中容(rong)易產生(sheng)(sheng)(sheng)噪(zao)(zao)(zao)(zao)聲的(de)(de)(de)(de)元(yuan)件一(yi)般(ban)認為是泵(beng)和(he)(he)閥(fa)(fa)(fa)(fa)，閥(fa)(fa)(fa)(fa)中又以溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)和(he)(he)電磁換向閥(fa)(fa)(fa)(fa)等為主(zhu)。產生(sheng)(sheng)(sheng)噪(zao)(zao)(zao)(zao)聲的(de)(de)(de)(de)因(yin)(yin)素很(hen)多。溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)的(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)聲有(you)(you)流(liu)(liu)(liu)(liu)速聲和(he)(he)機械聲二(er)種。流(liu)(liu)(liu)(liu)速聲中主(zhu)要(yao)由油(you)液振(zhen)動(dong)(dong)(dong)、空穴(xue)以及液壓(ya)(ya)(ya)(ya)(ya)沖擊(ji)(ji)等原因(yin)(yin)產生(sheng)(sheng)(sheng)的(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)聲。機械聲中主(zhu)要(yao)由閥(fa)(fa)(fa)(fa)中零件的(de)(de)(de)(de)撞擊(ji)(ji)和(he)(he)磨(mo)擦等原因(yin)(yin)產生(sheng)(sheng)(sheng)的(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)聲。定(ding)壓(ya)(ya)(ya)(ya)(ya)溢(yi)(yi)流(liu)(liu)(liu)(liu)作(zuo)用(yong)：在(zai)(zai)定(ding)量(liang)(liang)(liang)泵(beng)節(jie)流(liu)(liu)(liu)(liu)調節(jie)系(xi)(xi)統中，定(ding)量(liang)(liang)(liang)泵(beng)提(ti)供(gong)的(de)(de)(de)(de)是恒(heng)(heng)定(ding)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)。當(dang)系(xi)(xi)統壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)增大時(shi)(shi)，會使流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)需求(qiu)減(jian)小。此時(shi)(shi)溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)開啟，使多余流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)溢(yi)(yi)回(hui)(hui)油(you)箱，保證溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)進(jin)口壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)，即(ji)泵(beng)出口壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)恒(heng)(heng)定(ding)（閥(fa)(fa)(fa)(fa)口常隨壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)波(bo)動(dong)(dong)(dong)開啟）。在(zai)(zai)先導型(xing)溢(yi)(yi)流(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)發出的(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)聲中，有(you)(you)時(shi)(shi)會有(you)(you)機械性(xing)的(de)(de)(de)(de)高(gao)(gao)頻振(zhen)動(dong)(dong)(dong)聲，一(yi)般(ban)稱它為自激(ji)(ji)振(zhen)動(dong)(dong)(dong)聲。這是主(zhu)閥(fa)(fa)(fa)(fa)和(he)(he)導閥(fa)(fa)(fa)(fa)因(yin)(yin)高(gao)(gao)頻振(zhen)動(dong)(dong)(dong)而發生(sheng)(sheng)(sheng)的(de)(de)(de)(de)聲音。它的(de)(de)(de)(de)發生(sheng)(sheng)(sheng)率與(yu)回(hui)(hui)油(you)管道的(de)(de)(de)(de)配(pei)置(zhi)、流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)、壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)、油(you)溫（粘度）等因(yin)(yin)素有(you)(you)關。一(yi)般(ban)情況下(xia)，管道口徑小、流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)少、壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)高(gao)(gao)、油(you)液粘度低(di)，自激(ji)(ji)振(zhen)動(dong)(dong)(dong)發生(sheng)(sheng)(sheng)率就高(gao)(gao)。

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SCHUNK機械配件MT14-Kopf9938527?翊霈優供

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