廠家轉(zhuǎn)子振動(dòng)模擬試驗(yàn)臺(tái)型號(hào)：ZT-1（ZT-3）

產(chǎn)品簡介 
本轉(zhuǎn)子振動(dòng)模擬試驗(yàn)臺(tái)是一種用來模擬旋轉(zhuǎn)機(jī)械振動(dòng)的試驗(yàn)裝置。ZT-1為單跨、ZT-3為三跨轉(zhuǎn)子振動(dòng)模擬試驗(yàn)臺(tái)，主要用于在實(shí)驗(yàn)室模擬撓性轉(zhuǎn)子軸系的強(qiáng)迫振動(dòng)和自激振動(dòng)特性。它能有效地再現(xiàn)大型旋轉(zhuǎn)機(jī)械所產(chǎn)生的多種振動(dòng)現(xiàn)象。通過不同的裝備組合，改變轉(zhuǎn)子轉(zhuǎn)速、軸系剛度、質(zhì)量不平衡、軸承的摩擦或沖擊條件以及聯(lián)軸節(jié)的型式來模擬機(jī)器的運(yùn)行狀態(tài)，由配置的檢測儀表來觀察和記錄其振動(dòng)特性。因此，本試驗(yàn)臺(tái)為專門從事振動(dòng)測試、振動(dòng)研究及大專院校有關(guān)實(shí)驗(yàn)室提供了有效而方便的實(shí)驗(yàn)手段。 

廠家轉(zhuǎn)子振動(dòng)模擬試驗(yàn)臺(tái) 
組成及技術(shù)指標(biāo) 
1．調(diào)速器 
本試驗(yàn)臺(tái)采用直流電動(dòng)機(jī)驅(qū)動(dòng)，電機(jī)軸經(jīng)聯(lián)軸器直接驅(qū)動(dòng)轉(zhuǎn)子，結(jié)構(gòu)簡單、調(diào)速范圍寬，且平穩(wěn)可靠。電機(jī)額定電流2A，輸出功率250W。 手動(dòng)調(diào)整調(diào)壓器輸出電壓可實(shí)現(xiàn)電機(jī)0～10000rpm范圍的無級(jí)調(diào)速。 
2．試驗(yàn)臺(tái)臺(tái)體： 
ZT-1：長780mm，寬108mm，高145mm，重量20kg 
ZT-3：長1200mm，寬108mm，高145mm，重量45kg 
3．轉(zhuǎn)軸、聯(lián)軸節(jié) 
轉(zhuǎn)軸直徑為Ф9.5mm，撓曲不過0.03mm，沿軸的軸向任何部位均可選作試驗(yàn)中的支承點(diǎn)
ZT-1：配長度 500mm長軸 1根 

ZT-3：配長度320mm短軸 3根，另配于做油膜振蕩實(shí)驗(yàn)的500mm長軸一根。 
聯(lián)軸節(jié)有剛性聯(lián)軸節(jié)和半撓性聯(lián)軸節(jié)供選用。 
4．轉(zhuǎn)子、平衡螺釘 
轉(zhuǎn)子有兩種規(guī)格，可根據(jù)實(shí)驗(yàn)需要進(jìn)行組合使用。 
轉(zhuǎn)子Ⅰ：Ф76×25mm、（800g）, 轉(zhuǎn)子Ⅱ:Ф76×19mm（600g） 
ZT-1配有2只轉(zhuǎn)子，轉(zhuǎn)子Ⅰ、轉(zhuǎn)子Ⅱ各1只 
ZT-3配有6只轉(zhuǎn)子，轉(zhuǎn)子Ⅰ、轉(zhuǎn)子Ⅱ 各3只 
轉(zhuǎn)子上有凹槽，可在輪盤任意位置安裝平衡螺釘，以便做平衡試驗(yàn)。 
5．傳感器安裝 
試驗(yàn)臺(tái)上配有用于安裝光電傳感器的支架，（軸端貼反光帶）可用光電傳感器鍵相。如需用渦流傳感器鍵相，可另配備帶有凹槽的軸套。 
測時(shí)，可將速度傳感器安裝于試驗(yàn)臺(tái)的軸承座上。配有軸承座ZT-1為2（ZT-3為6只），測相對振動(dòng)時(shí)，可將電渦流傳感器安裝于渦流傳感器支架，配有渦流傳感器支架ZT-1為1只，（ZT-3為3只）。 
6．實(shí)驗(yàn) 
除以上基本振動(dòng)試驗(yàn)裝置外，還配有摩擦螺釘支架和油膜振蕩試驗(yàn)組件（油膜振蕩軸承座、針閥式油杯、油盒），用以完成摩擦和油膜振蕩試驗(yàn)。 
在基本振動(dòng)試驗(yàn)中如試驗(yàn)臺(tái)安裝一跨轉(zhuǎn)子，轉(zhuǎn)子徑向振動(dòng)用Ф8渦流傳感器測量，每個(gè)轉(zhuǎn)子可安裝x及y方向各一個(gè)測點(diǎn)，測點(diǎn)數(shù)隨轉(zhuǎn)子數(shù)而定。另可安裝磁電式振動(dòng)速度傳感器和光電傳感器，分別用于軸承振動(dòng)及轉(zhuǎn)速的測量。 試驗(yàn)臨界轉(zhuǎn)速因跨度、轉(zhuǎn)子質(zhì)量及位置等因素而各異，參考數(shù)據(jù)如下：使用500mm轉(zhuǎn)軸時(shí)，安裝兩個(gè)轉(zhuǎn)子，其一階臨界轉(zhuǎn)速約為2400rpm。 
根據(jù)試驗(yàn)?zāi)康目蓪⒃囼?yàn)臺(tái)組裝成幾種不同型式。幾種基本型式可用于：驗(yàn)證質(zhì)量不平衡等引起的振動(dòng)；驗(yàn)證油膜振蕩理論；驗(yàn)證自由轉(zhuǎn)子擾動(dòng).具體可分為： 
柔（撓）性轉(zhuǎn)子動(dòng)平衡、 
剛性轉(zhuǎn)子動(dòng)平衡、 
轉(zhuǎn)子過臨界的轉(zhuǎn)速測量、 
轉(zhuǎn)子結(jié)構(gòu)形式對臨界轉(zhuǎn)速的影響、 
柔(撓)性轉(zhuǎn)子的振型、 
滑動(dòng)軸承油膜振蕩、 
非接觸測量軸的徑向振動(dòng)和軸向位移、 
軸承座及臺(tái)體振動(dòng)測量、 
試加重進(jìn)行單面、雙面、多面轉(zhuǎn)子動(dòng)平衡

產(chǎn)品名稱：紗線動(dòng)態(tài)摩擦系數(shù)測定儀 產(chǎn)品型號(hào)：LFY-110

LFY-110 紗線動(dòng)態(tài)摩擦系數(shù)測定儀

主要用途

用于測定紗線的摩擦特性，適應(yīng)于化纖長絲及其它混紡材料紗線的動(dòng)態(tài)摩擦系數(shù)的測定，亦可用于皮輥等紡織器材的摩擦系數(shù)測定，是評(píng)價(jià)長絲及紡織器材摩擦系數(shù)等*的測試儀器。

儀器特征

采用絞盤法(RoLor法)測試機(jī)理，直流電機(jī)作等速引力源。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

高精度的測力機(jī)構(gòu)；

3、可調(diào)的預(yù)張力機(jī)構(gòu)；

4、全自動(dòng)測試控制系統(tǒng)；

技術(shù)指標(biāo)

1、測力范圍及精度：0～500cN±1％

2、摩擦系數(shù)范圍：0＜μ＜1

3、摩擦角可調(diào)范圍：0度～360度

4、預(yù)張力范圍：0～24CN

5、紗線測試速度：100m/min

6、顯示內(nèi)容：速度、預(yù)張力、摩擦系數(shù)

7、電源、功率： AC220V 50Hz 300W

適用標(biāo)準(zhǔn)

ASTM D 3108-2013《紗線與固體材料之間摩擦系數(shù)試驗(yàn)方法》

T/CNTAC 4-2017《紗線與固體材料之間摩擦系數(shù)試驗(yàn)方法》