Bently速度傳感器9200-01-01-10-00，上海韋米機電設(shè)備有限公司主營銷售產(chǎn)品，原廠原裝，質(zhì)量保障，銷售熱線：13524123009，傳真：021-51334670；聯(lián)系人：雷青。熱誠歡迎新老客戶咨詢購買！

Bently Nevada Seismoprobe速度傳感器系統(tǒng)測量軸承箱、機殼或結(jié)構(gòu)的絕對(相對于自由空間)振動|該兩線系統(tǒng)由傳感器、電纜和可選的速度-位移轉(zhuǎn)換器組成。
Seismoprobe系列速度傳感器是兩線結(jié)構(gòu)，采用動線圈技術(shù)，提供直接正比于傳感器振動速度的電壓輸出。與固體速度傳感器(本質(zhì)上是加速度計中嵌入積分電子電路)不同，動線圈傳感器對沖擊或脈沖勵磁的敏感性降低，是更好的應(yīng)用選擇。此外,由于它們不要求外部電源，所以使便攜式測量應(yīng)用更加方便。

Seismoprobe速度傳感器共有三種:
9200: 9200是兩線傳感器，適用于連續(xù)監(jiān)測或與測試或故障診斷儀表-起應(yīng)用于周期性測量中。當與整體電纜一同訂購時，9200具有卓越的抗腐蝕性,不需要額外保護。
74712: 74712是9200的高溫應(yīng)用版本。
47633: 47633的安裝方式較少，只提供整體鎧裝電纜。它的設(shè)計采用可替換
的夾頭，當動線圈磨損后易于替換。它用于速度傳感器安裝方式有限且只需提供簡單性能的一般用途機械。
多種聯(lián)接電纜可以將9200和74712傳感器與其它儀表或速度-位移轉(zhuǎn)換器聯(lián)接
起來。這些電纜以300毫米(1英尺遞增，有或沒有不銹鋼鎧裝。
有兩種類型的速度-位移轉(zhuǎn)換器(VDC)可供選擇:
9513:與9200和74712傳感器-起使用。
46687:與47633傳感器一起使用。

注意
如果箱體測量是為了對機器進行整體保護,應(yīng)考慮每種測量的有用性。大多數(shù)常見的機器故障(不平衡、不對中等)在轉(zhuǎn)子上產(chǎn)生,并引起轉(zhuǎn)子振動的增加(至少發(fā)生改變)。為了使只通過任何箱體測量就可以對機器實現(xiàn)有效的整體保護,必須要有足夠大的轉(zhuǎn)子振動被如實地傳遞到軸承箱體或機殼上,或在更特殊的情況下，傳遞到傳感器的安裝位置。
此外,對傳感器的物理安裝要多加注意。不正確的安裝會引起傳感器幅值和相位響應(yīng)的減少,并且/或?qū)е庐a(chǎn)生不代表真實機器振動的信號。根據(jù)要求，Bently Nevada可以提供工程化服務(wù),幫助用戶對有疑問的機器選擇適當?shù)南潴w測量方式，并且/或提供安裝協(xié)助。

Bently速度傳感器9200-01-01-10-00

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軸承箱又稱絞箱，是一種起支撐和潤滑軸承作用的箱體零件。同時，承受設(shè)備在工作時產(chǎn)生的軸向和徑向力。在有旋轉(zhuǎn)軸的設(shè)備中，軸一般是由軸承支撐起來旋轉(zhuǎn)的，軸承則安裝在軸承箱中，軸承箱中注有潤滑油，在工作過程中，使用軸承得到潤滑。同時，軸在工作時所受到的各種力也會傳遞到軸承箱上，由軸承箱承載。軸承箱的材質(zhì)一般為鑄鐵和鑄鋼。多用于車輪組。

離心式鼓風機的工作原理
離心式鼓風機的工作原理與離心式通風機相似，只是空氣的壓縮過程通常是經(jīng)過幾個工作葉輪（或稱幾級）在離心力的作用下進行的。鼓風機有一個高速轉(zhuǎn)動的轉(zhuǎn)子，轉(zhuǎn)子上的葉片帶動空氣高速運動，離心力使空氣在漸開線形狀的機殼內(nèi)，沿著漸開線流向風機出口，高速的氣流具有一定的風壓。新空氣由機殼的中心進入補充。
單級高速離心風機的工作原理是：原動機通過軸驅(qū)動葉輪高速旋轉(zhuǎn)，氣流由進口軸向進入高速旋轉(zhuǎn)的葉輪后變成徑向流動被加速，然后進入擴壓腔，改變流動方向而減速，這種減速作用將高速旋轉(zhuǎn)的氣流中具有的動能轉(zhuǎn)化為壓能（勢能），使風機出口保持穩(wěn)定壓力。
從理論上講，離心鼓風機的壓力-流量特性曲線是一條直線，但由于風機內(nèi)部存在摩擦阻力等損失，實際的壓力與流量特性曲線隨流量的增大而平緩下降，對應(yīng)的離心風機的功率-流量曲線隨流量的增大而上升。當風機以恒速運行時，風機的工況點將沿壓力-流量特性曲線移動。風機運行時的工況點，不僅取決于本身的性能，而且取決于系統(tǒng)的特性，當管網(wǎng)阻力增大時，管路性能曲線將變陡。風機調(diào)節(jié)的基本原理就是通過改變風機本身的性能曲線或外部管網(wǎng)特性曲線，以得到所需工況。

齒輪箱是在風力發(fā)電機組中應(yīng)用很廣泛的一個重要的機械部件。其主要功用是將風輪在風力作用下所產(chǎn)生的動力傳遞給發(fā)電機并使其得到相應(yīng)的轉(zhuǎn)速。
通常風輪的轉(zhuǎn)速很低，遠達不到發(fā)電機發(fā)電所要求的轉(zhuǎn)速，必須通過齒輪箱齒輪副的增速作用來實現(xiàn)，故也將齒輪箱稱之為增速箱。
齒輪箱承受來自風輪的作用力和齒輪傳動時產(chǎn)生的反力，必須具有足夠的剛性去承受力和力矩的作用，防止變形，保證傳動質(zhì)量。齒輪箱箱體的設(shè)計應(yīng)按照風電機組動力傳動的布局安排、加工和裝配條件、便于檢查和維護等要求來進行。隨著齒輪箱行業(yè)的不斷飛速發(fā)展，越來越多的行業(yè)和不同的企業(yè)都運用到了齒輪箱，也有越來越多的企業(yè)在齒輪箱行業(yè)內(nèi)發(fā)展壯大。
齒輪箱用途
1.加速減速,就是常說的變速齒輪箱.
2.改變傳動方向,例如我們用兩個扇形齒輪可以將力垂直傳遞到另一個轉(zhuǎn)動軸.
3.改變轉(zhuǎn)動力矩.同等功率條件下,速度轉(zhuǎn)的越快的齒輪,軸所受的力矩越小,反之越大.
4.離合功能: 我們可以通過分開兩個原本嚙合的齒輪,達到把發(fā)動機與負載分開的目的.比如剎車離合器等.
5.分配動力.例如我們可以用一臺發(fā)動機,通過齒輪箱主軸帶動多個從軸,從而實現(xiàn)一臺發(fā)動機帶動多個負載的功能.