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產(chan)品詳(xiang)情 Product details

1.概述

速(su)度(du)開(kai)關(guan)結合了施耐德傳(chuan)感(gan)器(qi)的先進技術和國內速(su)度(du)傳(chuan)感(gan)器(qi)的實際應用開(kai)發(fa)而成(cheng)（又(you)名速(su)度(du)傳(chuan)感(gan)器(qi)、低(di)速(su)開(kai)關(guan)、速(su)度(du)開(kai)關(guan)、打滑開(kai)關(guan))本(ben)產品(pin)主要用于(yu)皮(pi)(pi)帶輸(shu)送機(ji)、提升機(ji)、螺旋輸(shu)送機(ji)、研磨(mo)機(ji)、破(po)碎(sui)機(ji)、泵(beng)、離心干火機(ji)、攪拌(ban)機(ji)和除塵器(qi)等轉(zhuan)(zhuan)(zhuan)動設備，對皮(pi)(pi)帶打滑、皮(pi)(pi)帶斷裂、卡(ka)轉(zhuan)(zhuan)(zhuan)、慢轉(zhuan)(zhuan)(zhuan)、動軸剪切和過載、傳(chuan)動鏈(lian)（帶）脫落(luo)等機(ji)械故障能及(ji)時(shi)處理，起到保護(hu)設備減少損失。

2.工作原理
速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)不同于接近(jin)開(kai)(kai)(kai)(kai)關(guan)(guan)主要(yao)區(qu)別在(zai)于內部裝(zhuang)有延(yan)時(shi)電(dian)(dian)(dian)(dian)路，他可根據被動(dong)(dong)(dong)軸(zhou)(zhou)不同的(de)轉速(su)(su)(su)調整內部延(yan)時(shi)來達(da)到保(bao)護設(she)(she)(she)備(bei)的(de)卡(ka)(ka)死堵轉，速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)安裝(zhuang)在(zai)被動(dong)(dong)(dong)軸(zhou)(zhou)上(shang)如(ru)圖1他是通(tong)(tong)過(guo)(guo)裝(zhuang)在(zai)被傳動(dong)(dong)(dong)軸(zhou)(zhou)上(shang)的(de)檢測片，利用電(dian)(dian)(dian)(dian)磁感應(ying)的(de)原理(li)給速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)脈(mo)沖(chong)信號（當(dang)檢測片轉動(dong)(dong)(dong)到離速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)4-8毫米距離時(shi)為一個脈(mo)沖(chong)），以圖一為例:通(tong)(tong)電(dian)(dian)(dian)(dian)瞬間(jian)速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)通(tong)(tong)過(guo)(guo)串連(lian)的(de)繼電(dian)(dian)(dian)(dian)器(qi)(qi)使繼電(dian)(dian)(dian)(dian)器(qi)(qi)吸(xi)合延(yan)時(shi)為設(she)(she)(she)定的(de)秒(miao)(miao)數，設(she)(she)(she)備(bei)被動(dong)(dong)(dong)軸(zhou)(zhou)轉動(dong)(dong)(dong)一圈(quan)需要(yao)給速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)兩(liang)個脈(mo)沖(chong)，如(ru)果速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)設(she)(she)(she)定在(zai)8秒(miao)(miao)，設(she)(she)(she)備(bei)轉動(dong)(dong)(dong)一圈(quan)小(xiao)于8秒(miao)(miao)，速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)通(tong)(tong)過(guo)(guo)串連(lian)的(de)繼電(dian)(dian)(dian)(dian)器(qi)(qi)無動(dong)(dong)(dong)作（繼電(dian)(dian)(dian)(dian)器(qi)(qi)保(bao)持吸(xi)合）當(dang)設(she)(she)(she)備(bei)轉動(dong)(dong)(dong)一圈(quan)大于8秒(miao)(miao)，速(su)(su)(su)度(du)(du)開(kai)(kai)(kai)(kai)關(guan)(guan)認為已發生(sheng)卡(ka)(ka)死堵轉，通(tong)(tong)過(guo)(guo)串連(lian)的(de)繼電(dian)(dian)(dian)(dian)器(qi)(qi)使電(dian)(dian)(dian)(dian)繼器(qi)(qi)跳脫（繼電(dian)(dian)(dian)(dian)器(qi)(qi)斷電(dian)(dian)(dian)(dian)），保(bao)護設(she)(she)(she)備(bei)。

所有的(de)傳(chuan)動裝(zhuang)(zhuang)置，如(ru)螺旋輸(shu)送(song)機(ji)、提(ti)升機(ji)、皮帶輸(shu)送(song)機(ji)、拉(la)鏈(lian)機(ji)、破(po)碎機(ji)等都應(ying)在其被傳(chuan)動軸(zhou)處（機(ji)器尾端）進行安裝(zhuang)(zhuang)。

4.注意
安裝示意圖中(zhong)旋(xuan)轉速度監測儀的(de)安裝位置視具體情(qing)況:而定，不必(bi)拘泥于圖，在不影響正常工作的(de)前提下只要滿足“單(dan)位時間內(nei)給(gei)探頭間隔(ge)均勻的(de)脈沖信號”這個條件即可(ke)。

5.主要技術參數

The speed switch is developed by combining the advanced technology of Schneider sensors and the practical application ofdomestic speed sensors(also known as speed sensors, low speed switches, speed switches, slip switches).This product ismainly used in belt conveyors, elevators, screw conveyors, grinders, crushers, pumps,centrifugal dryers, mixers and dustcollectors, etc.Mechanical failures such as shearing and overloading of the moving shaft, and falling of the transmission chain(belt) can be handled in time to protect the equipment and reduce losses.

2.Working Principle
The speed switch is different from the proximity switch.The main difference is that it has a delay circuit inside. lt can adjust theinternal delay according to the different speeds of the passive shaft to achieve the stall of the protection device.The detectionpiece mounted on the driven shaftuses the principle of electromagnetic induction to give a pulse signal to the speed switch (apulse when the detection piece rotates to a distance of 4-8 mm from the speed switch).The following figure is an example:Themoment the power is turned on, the speed switch makes the relay pull-in delay to a set number of seconds through a series ofrelays. One rotation of the passive axis of the device requires two pulses to the speed switch. The device rotates for less than 8seconds, and the speed switch does not operate through the serially connected relays (the relays remain closed). When thedevice rotates one turn for more than 8 seconds, the speed switch considers that a stall has occurred.The relay is tripped (relayde-energized) through a series of relays to protect the device.

3.Use & lnstallation
All ransmission devices, such as screw conveyors, hoists, belt conveyors,zippers, crushers, etc., should be installed at thedriven shaft (end of the machine).

4.Notes

The installation position of the rotation speed monitor in the installation diagram depends on the specifi situation it oes notneed to be constrained by the diagram.As long as it does not affect the normal work, it only needs to meet the condition of "pulsesignals uniformly spaced to the probe within a unit time".

5.Technical Parameters