力士樂Rexroth導向型材3842525733
- 型(xing) 號:
- 價(jia) 格:¥3850
力士樂Rexroth導向型材3842525733滾(gun)珠(zhu)導(dao)(dao)軌導(dao)(dao)向系統(tong)(tong)(滑塊(kuai)(kuai)、導(dao)(dao)軌、滾(gun)珠(zhu)、絲杠),輸(shu)送系統(tong)(tong)(輸(shu)送機、擋停器(qi)(qi)(qi)、分離器(qi)(qi)(qi)、阻尼器(qi)(qi)(qi)、搖桿(gan)),手工生產系統(tong)(tong)(卡裝式容(rong)器(qi)(qi)(qi)、旋轉升降裝置),識別(bie)系統(tong)(tong)(通信模(mo)塊(kuai)(kuai)、天線、傳感器(qi)(qi)(qi)、移動數據載體)
力士樂Rexroth導向型材3842525733
1.油液(ye)中水分(fen)進入的途徑
(1)油箱蓋因冷熱交替而使空氣中的水分凝結成水珠(zhu)落人油中。
(2)冷卻器(qi)或熱交(jiao)換(huan)器(qi)密封損壞或冷卻管破裂(lie)使水漏人油中。
(3)通過(guo)液壓缸活塞桿密封不嚴密處進入系統的(de)潮濕(shi)
1.油(you)液中水(shui)分進(jin)入(ru)的途徑
(1)油(you)箱蓋因冷熱交(jiao)替而(er)使空氣中(zhong)的水分凝結成(cheng)水珠落人油(you)中(zhong)。
(2)冷(leng)(leng)卻器(qi)或熱交換器(qi)密封(feng)損(sun)壞或冷(leng)(leng)卻管破裂使水漏人(ren)油中(zhong)。
(3)通過(guo)液壓缸活塞桿密封不嚴密處進入系統的潮濕空(kong)氣凝聚成水珠(zhu)。
(4)用(yong)(yong)油(you)時(shi)帶人(ren)的(de)水(shui)(shui)分以及(ji)油(you)液暴露(lu)于(yu)潮濕環境中與(yu)水(shui)(shui)發生親合作用(yong)(yong)而吸收的(de)水(shui)(shui)。
2.油液中混(hun)入水分后的危(wei)害
(1)油(you)(you)液中混入(ru)一(yi)(yi)定(ding)量的(de)(de)水(shui)分后(hou),會使(shi)液壓油(you)(you)乳(ru)(ru)化(hua)呈白濁(zhuo)(zhuo)狀態。如果液壓油(you)(you)本身(shen)的(de)(de)抗乳(ru)(ru)化(hua)能(neng)力較(jiao)差,靜止一(yi)(yi)段(duan)時間(jian)后(hou),水(shui)分也不能(neng)與(yu)油(you)(you)分離,使(shi)油(you)(you)總處(chu)于(yu)白濁(zhuo)(zhuo)狀態。這種白濁(zhuo)(zhuo)的(de)(de)乳(ru)(ru)化(hua)油(you)(you)進入(ru)液壓系(xi)(xi)統內部,不僅使(shi)液壓閥的(de)(de)元(yuan)件(jian)內部生(sheng)銹,同時降低(di)其(qi)潤滑性能(neng),使(shi)零件(jian)的(de)(de)磨損加劇,系(xi)(xi)統的(de)(de)效(xiao)率(lv)降低(di)。
(2)液(ye)壓(ya)系統內的鐵系金屬生銹后,剝落(luo)的鐵銹在液(ye)壓(ya)系統管道和液(ye)壓(ya)元件內流動,蔓延擴散下去,將導致整個系統內部生銹,產(chan)生更多(duo)的剝落(luo)鐵銹和氧化物。
(3)水還會與油(you)中的(de)某(mou)些添加劑作用(yong)產(chan)生沉淀和膠(jiao)質等污(wu)染物(wu),加速(su)油(you)的(de)惡化(hua)。
(4)水與油(you)(you)中的(de)硫(liu)和氯作(zuo)用產生硫(liu)酸和鹽酸,使元件(jian)的(de)磨(mo)蝕磨(mo)損(sun)加劇,也加速油(you)(you)液的(de)氧化變質,甚(shen)至產生很多油(you)(you)泥(ni)。
(5這些水污染物(wu)(wu)和氧(yang)化(hua)生成物(wu)(wu),隨即成為進一步氧(yang)化(hua)的催化(hua)劑(ji),最終導致液(ye)壓元(yuan)件堵塞(sai)或卡死,引起液(ye)壓閥(fa)系統(tong)動(dong)作失靈、配油管堵塞(sai)、冷卻器效(xiao)率(lv)降低以及(ji)濾油器堵塞(sai)等一系列故障。
(6)另外,在低溫(wen)時,水凝(ning)結成微小冰粒,也容易(yi)堵塞控制元件的間隙和死口。
力士樂Rexroth導向型材3842525733
液壓傳動的定義
液(ye)(ye)壓(ya)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)是(shi)指以(yi)液(ye)(ye)體(ti)為工(gong)作介質進(jin)(jin)行(xing)能量傳(chuan)(chuan)(chuan)遞和(he)控制(zhi)的(de)一(yi)種傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)方(fang)式。在液(ye)(ye)體(ti)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)中(zhong),根據(ju)其(qi)能量傳(chuan)(chuan)(chuan)遞形(xing)式不同,又(you)分為液(ye)(ye)力傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)和(he)液(ye)(ye)壓(ya)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)。液(ye)(ye)力傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)主要(yao)是(shi)利用液(ye)(ye)體(ti)動(dong)(dong)(dong)(dong)(dong)(dong)能進(jin)(jin)行(xing)能量轉(zhuan)換的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)方(fang)式,如(ru)液(ye)(ye)力耦合(he)器(qi)和(he)液(ye)(ye)力變矩器(qi)。液(ye)(ye)壓(ya)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)是(shi)利用液(ye)(ye)體(ti)壓(ya)力能進(jin)(jin)行(xing)能量轉(zhuan)換的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)方(fang)式。在機(ji)械上(shang)采(cai)用液(ye)(ye)壓(ya)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)技術,可以(yi)簡化(hua)機(ji)器(qi)的(de)結(jie)構(gou),減(jian)輕機(ji)器(qi)質量,減(jian)少材料消耗,降低制(zhi)造(zao)成本(ben),減(jian)輕勞(lao)動(dong)(dong)(dong)(dong)(dong)(dong)強度(du),提(ti)高(gao)工(gong)作效(xiao)率和(he)工(gong)作的(de)可靠性。
液(ye)壓(ya)傳(chuan)動的綜合應用領(ling)域
液(ye)壓(ya)(ya)(ya)(ya)(ya)傳(chuan)動(dong)(dong)(dong)相對機(ji)械(xie)傳(chuan)動(dong)(dong)(dong)來(lai)說,是一(yi)門新技(ji)術(shu)(shu)(shu)(shu)(shu)。自(zi)十(shi)(shi)(shi)七世紀(ji)中葉帕斯(si)卡提出靜壓(ya)(ya)(ya)(ya)(ya)原(yuan)理(li),液(ye)壓(ya)(ya)(ya)(ya)(ya)傳(chuan)動(dong)(dong)(dong)已(yi)有三百多年(nian)歷史。然(ran)而液(ye)壓(ya)(ya)(ya)(ya)(ya)傳(chuan)動(dong)(dong)(dong)的(de)(de)推(tui)(tui)廣(guang)使(shi)用(yong)只是近五(wu)、六十(shi)(shi)(shi)年(nian)的(de)(de)事。直到(dao)本世紀(ji)三十(shi)(shi)(shi)年(nian)代(dai)液(ye)壓(ya)(ya)(ya)(ya)(ya)傳(chuan)動(dong)(dong)(dong)才開始(shi)(shi)應(ying)用(yong)到(dao)普通機(ji)床(chuang)上(shang)(shang)。第二次世界大戰期(qi)間,由(you)于兵器的(de)(de)戰術(shu)(shu)(shu)(shu)(shu)技(ji)術(shu)(shu)(shu)(shu)(shu)要求,推(tui)(tui)動(dong)(dong)(dong)了(le)反應(ying)快、動(dong)(dong)(dong)作準、功(gong)率大的(de)(de)液(ye)壓(ya)(ya)(ya)(ya)(ya)傳(chuan)動(dong)(dong)(dong)裝置(zhi)的(de)(de)發(fa)展(zhan)。戰后(hou),液(ye)壓(ya)(ya)(ya)(ya)(ya)技(ji)術(shu)(shu)(shu)(shu)(shu)迅速轉向民用(yong),在機(ji)床(chuang)、工程機(ji)械(xie)、農業機(ji)械(xie)、汽(qi)車等行業中逐步推(tui)(tui)廣(guang)。本世紀(ji)六十(shi)(shi)(shi)年(nian)代(dai)以(yi)后(hou),隨著原(yuan)子能技(ji)術(shu)(shu)(shu)(shu)(shu)、空間技(ji)術(shu)(shu)(shu)(shu)(shu)、計算機(ji)技(ji)術(shu)(shu)(shu)(shu)(shu)等的(de)(de)發(fa)展(zhan),至今它已(yi)應(ying)用(yong)國(guo)民經濟的(de)(de)各(ge)個領域(yu)中去。我(wo)國(guo)的(de)(de)液(ye)壓(ya)(ya)(ya)(ya)(ya)工業始(shi)(shi)于上(shang)(shang)個世紀(ji)五(wu)十(shi)(shi)(shi)年(nian)代(dai),其產(chan)品最初應(ying)用(yong)于機(ji)床(chuang)和(he)(he)鍛壓(ya)(ya)(ya)(ya)(ya)設備(bei)上(shang)(shang),后(hou)來(lai)又用(yong)于拖拉機(ji)和(he)(he)工程機(ji)械(xie)。自(zi)年(nian)從國(guo)外引進一(yi)些液(ye)壓(ya)(ya)(ya)(ya)(ya)元(yuan)件生產(chan)技(ji)術(shu)(shu)(shu)(shu)(shu),同時進行自(zi)行設計液(ye)壓(ya)(ya)(ya)(ya)(ya)產(chan)品以(yi)來(lai),我(wo)國(guo)的(de)(de)液(ye)壓(ya)(ya)(ya)(ya)(ya)元(yuan)件已(yi)從低壓(ya)(ya)(ya)(ya)(ya)到(dao)高壓(ya)(ya)(ya)(ya)(ya)形成(cheng)了(le)系統列,并在各(ge)種(zhong)機(ji)械(xie)上(shang)(shang)設備(bei)上(shang)(shang)得到(dao)了(le)廣(guang)泛的(de)(de)使(shi)用(yong)。
(1)一般工(gong)業用液壓系統塑料加工(gong)機(ji)械(xie)(xie)(xie)(注塑機(ji))、壓力機(ji)械(xie)(xie)(xie)(鍛壓機(ji))、重型(xing)機(ji)械(xie)(xie)(xie)(廢鋼壓塊機(ji))、機(ji)床(全自動六(liu)角車床、平面磨床)等;
(2)行走機械(xie)用液壓系統工程(cheng)機械(xie)(挖掘(jue)機)、起重機械(xie)(汽(qi)車吊)、建(jian)筑機械(xie)(打(da)樁(zhuang)機)、農業機械(xie)(聯合(he)收割機)、汽(qi)車(轉向器(qi)、減振器(qi))等;
(3)鋼(gang)鐵(tie)工(gong)業用(yong)液壓(ya)系(xi)統 冶金機(ji)(ji)械(軋鋼(gang)機(ji)(ji))、提升裝(zhuang)置(升降(jiang)機(ji)(ji))、軋輥(gun)調整(zheng)裝(zhuang)置等;
(4)土木工程用液(ye)壓系統 防洪閘門及堤壩裝(zhuang)置(zhi)(浪潮(chao)防護擋板(ban))、河床升(sheng)降裝(zhuang)置(zhi)、橋梁操縱機(ji)構和礦山機(ji)械(xie)(鑿巖機(ji))等(deng);
(5)發電廠用(yong)液(ye)壓系統渦輪機(ji)(調速(su)裝置)等;
(6)特殊技術用液壓系(xi)統 巨型天線控制(zhi)裝置、測量浮標、飛(fei)機(ji)起(qi)落架的收放裝置及方向舵控制(zhi)裝置、升降旋轉舞(wu)臺等;
(7)船(chuan)舶用液(ye)壓系統(tong) 甲板起重機械(xie)(絞車)、船(chuan)頭門、艙(cang)壁閥、船(chuan)尾推進(jin)器等;
(8)軍事(shi)工(gong)業用液壓系(xi)統火炮操(cao)縱裝置(zhi)、艦船減搖裝置(zhi)、飛行器仿真等。
3842547516
3842538947
3842218921
3842544528
3842548817
3842500287 3000MM
3842551045
3842513581
3842544529
3842544527
3842516165
3842555568
3842218953
3842548753
3842525766
3842554720
3842528806
3842551227
3842528967
3842529300
3842529298
3842553613 96米
3842554315
3842174304
3842544748
3842992517 3080mm
3842992517 3680mm
3842992517 3865mm
3842558795
3842528807
3842559001
3842564563
3842547521
3842546125
3842998052 CS:240*18 M/MIN*400
3842563321
3842305210
3842519006
3842992811 L=200M
3842218920
3842545908
3842536270
3842525857
3842521219
3842554926
3842544623
3842538940
3842538941
3842519001
3842541567
3842532334
3842999903 BQ=320MM; BL=320MM; AO=1; PN=2; VN=18M/MIN; U=400V; F=50HZ; AT=K
3842525804
3842548127
3842518351
3842555276
3842529386
3842535642
3842544531
3842538607
3842543404
3842554450
3842543401
3842546564
3842191175
3842992517 L=340mm
3842994835
3842551226 L12
3842998010 B=120MM; PN=3; U=400V; F=50HZ; VN=9M/MIN; AT=K
3842503063
3842516833
3842993090 L=6M
3842993066 L=6M
3842994870 L=12M
3842530864
3842549717
3842503925
3842548644
3842524921
3842547995
3842536390
3842535706+3842535766
3842535705+3842535765
3842999728 LT=160MM:B=160MM:A=135MM:VN=15M/MIN:V=400V:F=50HZKR=L:MAS AT=K:MM=0°
3842992517 L=5245
3842528718
3842523580
3842548869
3842523575
3842530287
3842242400
3842548761
3842345081
3842526761
3842544628
3842516804
3842538409
3842520054
3842502030
3842549565-100
3842552645-60
3842548838
3842184738
3842528738
3842528735
3842998102 PE 1/P B=160MM | WT 1/P
3842538065
3842520025 L=5600mm整包(bao)的號(hao),一包(bao)2根
3842518347
3842555274 單根2米(mi)
3842518347
3842555274 單(dan)根2米
3842530864 L=32米
3842562346
3842544845
3842516598
3842558570
3842554402
3842555574
3842555572
3842554450
3842529933
3842511715
3842549703
3842992679 L=240.. <450
3842523426 1=320.. <450; N=0
3842146972 L=240.. <2460
3842146972 L=2460.. <4760
3842146972 L=4760.. 6000
3842235484 D74X30 MA=R;L;B>=MA=M
3842557410 160<=B<240, MA=M
3842992650 L=60米
3842198340
3842305209
3842553618 L=380
3842553622 L= 1800
3842523537
3842553618 L=300
3842557215 L=1300
3842520078
3842554306
3842549868
3842242351
3842554312
3842523102
3842546981
3842532015
3842554294
3842536775
3842558795
3842992811 L=69M
3842538949
3842538943
3842546017 L=12M
3842531214 L=12M
3842531420 L=12M
3842533478 L=12M
3842999727-100 3842538940
3842999727-3010 3842541036
3842531355
3842557603
3842557709
3842524279
3842544531
3842536676
3842305211
3842994733 L=580
3842410063
3842551360
3842538942 1450
3842410117
3842537627
3842529731
3842532677
3842992679,L=6M 2000MM
3842538656
3842530864 L=12M
38425413203842563318
3842998101 B=120MM
3842992517 長度3780
3842410060
3842525733
3842174301
3842532675 L=6000mm 1包是16根,不拆包
液壓傳動(dong)在日(ri)常生活中的應用
在我們生活中最常見的(de)(de)是(shi)液壓千斤頂、汽車的(de)(de)轉向助力、挖掘機、飛(fei)機起(qi)落架的(de)(de)收放裝(zhuang)(zhuang)置及方向舵控(kong)制裝(zhuang)(zhuang)置、升(sheng)降旋轉舞臺、船尾推進器等(deng),這些(xie)都(dou)是(shi)都(dou)機械上的(de)(de)!你看見有液壓缸就是(shi)液壓傳動!
液(ye)壓(ya)傳動技術在(zai)礦井提(ti)升系統中(zhong)的應用(yong)
TEl30型液壓站(zhan)的主要作用(yong)
(1)可以為盤形(xing)制動(dong)器(qi)提供不(bu)同油壓(ya)值的(de)壓(ya)力油,以獲(huo)得不(bu)同的(de)制動(dong)力矩。
(2)在事故狀態下,可以使制(zhi)(zhi)動器(qi)的油壓迅速降到預先調定的某一(yi)值,經過延時后,制(zhi)(zhi)動器(qi)的全部油壓迅速回到零(ling),使制(zhi)(zhi)動器(qi)達(da)到全制(zhi)(zhi)動狀態。
(3)TEl30型液壓站可以供給控制單(dan)繩雙筒礦井提升機(ji)調繩裝置所需要的壓力(li)油。
l、油箱;2、網式過(guo)濾(lv)器(qi);3、電機(ji);4、油泵;5、紙(zhi)質過(guo)濾(lv)器(qi);6、電液(ye)調壓(ya)裝置(zhi);7、電磁(ci)換(huan)向閥(fa)(fa);8、溢流閥(fa)(fa);9、減壓(ya)閥(fa)(fa);10、單向閥(fa)(fa);11、電磁(ci)換(huan)向閥(fa)(fa);12、彈簧蓄力(li)器(qi);13、液(ye)動換(huan)向閥(fa)(fa);14、壓(ya)力(li)表開關;15、壓(ya)力(li)表;16、電磁(ci)換(huan)向閥(fa)(fa);17、電磁(ci)換(huan)向閥(fa)(fa);18、電磁(ci)換(huan)向閥(fa)(fa);19、電接點壓(ya)力(li)式溫(wen)度計;2O、電接點壓(ya)力(li)表;21、截止(zhi)閥(fa)(fa)。
液(ye)壓站工作(zuo)原理(li)介(jie)紹
為了確保(bao)提升機(ji)(ji)的正常工(gong)作,液(ye)(ye)壓(ya)站(zhan)油(you)箱(xiang)中間用(yong)鋼板隔開,相當于2個獨立油(you)箱(xiang),并帶(dai)有2臺葉片(pian)泵(beng)裝(zhuang)置(zhi),一臺工(gong)作、一臺備用(yong)。二(er)泵(beng)替(ti)換(huan)工(gong)作時,同液(ye)(ye)動(dong)(dong)(dong)換(huan)向閥13自動(dong)(dong)(dong)換(huan)向,2臺葉片(pian)泵(beng)裝(zhuang)置(zhi)放在油(you)箱(xiang)側(ce)面地面上,便于維修。安全制(zhi)動(dong)(dong)(dong)部分(fen)由電(dian)(dian)磁閥G3、G4、G5、G6,減壓(ya)閥9、溢(yi)流(liu)閥8、蓄力器(qi)12等件(jian)組成。對單繩(sheng)雙(shuang)筒(tong)提升機(ji)(ji)來(lai)說(shuo)又在此基礎上增加(jia)了電(dian)(dian)磁閥18(G1、G2)以(yi)供(gong)詞繩(sheng)使用(yong),液(ye)(ye)壓(ya)站(zhan)為盤(pan)形制(zhi)動(dong)(dong)(dong)器(qi)提供(gong)了不(bu)同油(you)壓(ya)的油(you),油(you)壓(ya)的變化,由電(dian)(dian)液(ye)(ye)調(diao)壓(ya)裝(zhuang)置(zhi)b來(lai)調(diao)節,這時安全制(zhi)動(dong)(dong)(dong)部分(fen)的電(dian)(dian)磁閥G3、G4、G5帶(dai)電(dian)(dian),油(you)路通(tong)(tong),壓(ya)力油(you)通(tong)(tong)過管路分(fen)別進(jin)入盤(pan)形制(zhi)動(dong)(dong)(dong)器(qi)。油(you)壓(ya)的變化,通(tong)(tong)過提升機(ji)(ji)司(si)機(ji)(ji)控制(zhi)電(dian)(dian)液(ye)(ye)調(diao)壓(ya)裝(zhuang)置(zhi)的電(dian)(dian)流(liu)大小來(lai)實現,從(cong)而達到(dao)調(diao)節制(zhi)動(dong)(dong)(dong)力矩的目的。
2.3液壓(ya)(ya)站的(de)安(an)全制(zhi)(zhi)動(dong)(dong)(dong)中的(de)原理應用系(xi)(xi)統(tong)正(zheng)常]_作時(shi)(shi),電(dian)(dian)(dian)磁鐵G3、G4、G5通電(dian)(dian)(dian),G1、G2、G6斷(duan)(duan)(duan)電(dian)(dian)(dian),壓(ya)(ya)力油(you)(you)通過電(dian)(dian)(dian)磁閥11、17分別進入制(zhi)(zhi)動(dong)(dong)(dong)器(qi),開閘,保(bao)證(zheng)提升機正(zheng)常運轉。同時(shi)(shi)壓(ya)(ya)力油(you)(you)經(jing)過減壓(ya)(ya)閥9、單向閥10進入彈簧(huang)儲力器(qi)l2,達(da)到某一(yi)級制(zhi)(zhi)動(dong)(dong)(dong)油(you)(you)壓(ya)(ya)Pl級,當提升機實現安(an)全制(zhi)(zhi)動(dong)(dong)(dong)時(shi)(shi)(其中包括全礦(kuang)停電(dian)(dian)(dian))電(dian)(dian)(dian)機3斷(duan)(duan)(duan)電(dian)(dian)(dian),油(you)(you)泵停止供(gong)油(you)(you),電(dian)(dian)(dian)磁鐵G3、G4斷(duan)(duan)(duan)電(dian)(dian)(dian)。TEl30型(xing)液壓(ya)(ya)站固定卷筒制(zhi)(zhi)動(dong)(dong)(dong)器(qi)的(de)壓(ya)(ya)力油(you)(you)迅速回(hui)油(you)(you)箱,油(you)(you)壓(ya)(ya)降到零。TEl30游動(dong)(dong)(dong)卷筒制(zhi)(zhi)動(dong)(dong)(dong)器(qi)的(de)壓(ya)(ya)力油(you)(you)經(jing)電(dian)(dian)(dian)磁閥l1,一(yi)部(bu)分壓(ya)(ya)力油(you)(you)流(liu)到彈簧(huang)儲力器(qi)12內,另(ling)一(yi)部(bu)分由(you)溢流(liu)閥8流(liu)回(hui)油(you)(you)箱,使這(zhe)局部(bu)系(xi)(xi)統(tong)內油(you)(you)壓(ya)(ya)值,保(bao)持一(yi)級制(zhi)(zhi)動(dong)(dong)(dong)油(you)(you)壓(ya)(ya)值P1級,再經(jing)過延(yan)時(shi)(shi)繼電(dian)(dian)(dian)器(qi)延(yan)時(shi)(shi),電(dian)(dian)(dian)磁鐵G5延(yan)時(shi)(shi)斷(duan)(duan)(duan)電(dian)(dian)(dian),G6延(yan)時(shi)(shi)通電(dian)(dian)(dian),使油(you)(you)壓(ya)(ya)迅速降到零,達(da)到全制(zhi)(zhi)動(dong)(dong)(dong)狀態。
液壓(ya)傳動在機械(xie)中詳細的應用
驅動(dong)機(ji)械(xie)(xie)運動(dong)的機(ji)構(gou)以(yi)及(ji)各(ge)種(zhong)傳動(dong)和(he)操縱裝(zhuang)置有多(duo)種(zhong)形式(shi)。根據所(suo)用的部件和(he)零件,可分為機(ji)械(xie)(xie)的、電氣的、氣動(dong)的、液(ye)(ye)壓(ya)的傳動(dong)裝(zhuang)置。經常還將不同(tong)的形式(shi)組合起來運用——四位一體。由于液(ye)(ye)壓(ya)傳動(dong)具(ju)有很多(duo)優點(dian),使這(zhe)種(zhong)新技術(shu)發展得(de)很快。液(ye)(ye)壓(ya)傳動(dong)應用于金屬切削機(ji)床也不過四五(wu)十(shi)年(nian)的歷史。航(hang)空工業在1930年(nian)以(yi)后才開始采用。特別是最近二三十(shi)年(nian)以(yi)來液(ye)(ye)壓(ya)技術(shu)在各(ge)種(zhong)工業中的應用越來越廣泛。
在機床上,液(ye)壓傳動常(chang)應用在以下的一些裝置中:
1.進(jin)給(gei)(gei)運動(dong)傳動(dong)裝(zhuang)置磨床砂輪架和工(gong)作(zuo)臺的(de)(de)(de)進(jin)給(gei)(gei)運動(dong)大部分采用(yong)液(ye)壓(ya)傳動(dong);車(che)床、六角(jiao)車(che)床、自動(dong)車(che)床的(de)(de)(de)刀架或轉塔刀架;銑床、刨床、組(zu)合機床的(de)(de)(de)工(gong)作(zuo)臺等(deng)(deng)的(de)(de)(de)進(jin)給(gei)(gei)運動(dong)也(ye)都(dou)采用(yong)液(ye)壓(ya)傳動(dong)。這(zhe)些(xie)部件有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)快速移(yi)動(dong),有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)慢(man)(man)速移(yi)動(dong)。有(you)的(de)(de)(de)則既(ji)要(yao)求(qiu)(qiu)(qiu)(qiu)快速移(yi)動(dong),也(ye)要(yao)求(qiu)(qiu)(qiu)(qiu)慢(man)(man)速移(yi)動(dong)。這(zhe)些(xie)運動(dong)多半(ban)要(yao)求(qiu)(qiu)(qiu)(qiu)有(you)較大的(de)(de)(de)調速范圍,要(yao)求(qiu)(qiu)(qiu)(qiu)在(zai)(zai)工(gong)作(zuo)中無級調速;有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)持續(xu)進(jin)給(gei)(gei),有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)間(jian)歇進(jin)給(gei)(gei);有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)在(zai)(zai)負載變化下速度恒定,有(you)的(de)(de)(de)要(yao)求(qiu)(qiu)(qiu)(qiu)有(you)良好的(de)(de)(de)換向(xiang)性能(neng)等(deng)(deng)等(deng)(deng)。所有(you)這(zhe)些(xie)要(yao)求(qiu)(qiu)(qiu)(qiu)都(dou)是可(ke)以用(yong)液(ye)壓(ya)傳動(dong)來實(shi)現的(de)(de)(de)。
2.往(wang)復主體(ti)運動傳動裝(zhuang)置龍門刨床的工(gong)作(zuo)臺、牛頭刨床或插(cha)床的滑枕,由于要求(qiu)作(zuo)高速往(wang)復直線運動,并且要求(qiu)換向(xiang)沖擊(ji)小(xiao)、換向(xiang)時(shi)間(jian)短(duan)、能耗低(di),因此都可以采用(yong)液壓傳動。
3.仿形(xing)裝(zhuang)置(zhi)車床、銑床、刨床上的(de)仿形(xing)加工可(ke)以采用(yong)液壓伺服系統來完成(cheng)。 其精(jing)度可(ke)達0.01~0.02mm。此外,磨床上的(de)成(cheng)形(xing)砂(sha)輪修(xiu)正(zheng)裝(zhuang)置(zhi)亦可(ke)采用(yong)這種系統。
4.輔助裝置機床(chuang)上的夾緊(jin)裝置、齒輪箱變速操縱裝置、絲桿螺(luo)母間隙消除裝置、垂(chui)直移動(dong)部件平衡(heng)裝置、分度(du)裝置、工件和刀具裝卸裝置、工件輸送裝置等(deng),采用液壓傳動(dong)后,有(you)利于簡(jian)化機床(chuang)結構,提高機床(chuang)自動(dong)化程度(du)。
5.靜(jing)壓(ya)支(zhi)承(cheng)重(zhong)型(xing)機(ji)(ji)(ji)床、高(gao)速機(ji)(ji)(ji)床、高(gao)精度機(ji)(ji)(ji)床上的(de)軸承(cheng)、導軌(gui)、絲杠螺母機(ji)(ji)(ji)構(gou)等(deng)處采用液體(ti)靜(jing)壓(ya)支(zhi)承(cheng)后,可以提高(gao)工作平穩性和運動精度。