【正文】 oupling can be considered as being relatively very low when pared to the cost of down ，相對于時間成本的下降。) 單一位置 =試圖重新聘用自動在同一位置（360 176。 Overload protection does not allow any ofmises in regard to reliability and quality of the individual ponents although Torque Limiters are always designed for an economic ，雖然任何一個經(jīng)濟總是使用而設(shè)計ofmises。 This system makes sure that the external dimensions of the coupling stay the same. The otherwise usual, but high pretension of the inserts is thus reduced and the assembly is much ，一般的，但在插入高預(yù)緊因此減少，裝配容易得多。 This bines the known elastomer couplings with a torque limiting 。 Easy handling reliability are further 。提高經(jīng)濟效率碟形彈簧的優(yōu)化和材料適應(yīng)了允許使用的耦合為緊湊和可靠的設(shè)計，更好的性能和疫情周報質(zhì)量。有限的裝置進一步發(fā)展和完善的反彈已經(jīng)無力矩限制器系列SK優(yōu)化，帶來了為每個應(yīng)用適當(dāng)?shù)脑O(shè)計。 過負(fù)荷的基本保護方法是： 1．對電機連續(xù)運轉(zhuǎn)或點動操作的過負(fù)荷保護采用恒溫器； 2．對電機堵轉(zhuǎn)的保護采用熱繼電器 3．對短路事故采用熔斷器或過流繼電器。但由于每臺電動裝置的負(fù)荷情況不同，難以提出一個統(tǒng)一的辦法。但如出現(xiàn)下列情況便可使其超負(fù)荷： 1．電源電壓低，得不到所需的轉(zhuǎn)矩，使電機停止轉(zhuǎn)動。對于部分回轉(zhuǎn)閥門以及多回轉(zhuǎn)閥門中的暗桿閥門，雖不用考慮閥桿直徑的通過問題，但在選配時亦應(yīng)充分考慮閥桿直徑與鍵槽的尺寸，使組裝后能正常工作。由于閥門電動裝置應(yīng)有的工作特性和利用率取決于閥門的種類、裝置的工作規(guī)范及閥門在管線或設(shè)備上的位置。 without thrust disk。 consider the prevention of overload (working torque higher than the control torque) has bee essential to the occurrence of a ring. Valve electric device right choice should be based on: 1. Operation torque: Operation torque is to select the main valve electrical device parameters. The output torque electric actuator valve operation should be the greatest moment of ~ times. 2. Operation Thrust: the host structure ofMOTORIZED VALVE ACTUATOR the valve electric device, there are two, one is not configured thrust plate, this time directly to the output torque。 connections as follows: Are thrust plate。 backlashfree, short reaction times and long service life have been further optimized. The constructive benefit is ensured through fast availability of applications after a crash.)multiposition = attempting reengagement in several positions per revolutionfull disengagement = plete load separation, must be reengaged manuallyload holding 3．輸出軸轉(zhuǎn)動圈數(shù)：閥門電動裝置輸出軸轉(zhuǎn)動圈數(shù)的多少與閥門的公稱通徑、閥桿螺距、螺紋頭數(shù)有關(guān)，按M=H/ZS計算（式中：M為電動裝置應(yīng)滿足的總轉(zhuǎn)動圈數(shù)；H為閥門的開啟高度，mm；S為閥桿傳動螺紋的螺距，mm；Z為閥桿螺紋頭數(shù)。通常閥門電動裝置采用限制轉(zhuǎn)矩的連軸器。 以上是出現(xiàn)超負(fù)荷的一些原因，對于這些原因產(chǎn)生的電機過熱現(xiàn)象應(yīng)預(yù)先考慮到，并采取措施，防止過熱。所以應(yīng)選擇根據(jù)過負(fù)荷的原因能可靠的動作的方法——組合復(fù)合方式，以實現(xiàn)全面的過負(fù)荷保護作用。 Important requirements such as being When the overload occurs the Torque Limiters disengage in milli 。 This results in a reduced separation of masses in case of a crash due to the reduced weight and a smaller technical 。 An axial pretensioning of the metal bellows of only millimeters assures the absolutely backlashfree torque 。 Poor manufactured couplings may cause pulsating radial forces onto the rotational axle during 。 A plete sealing that is optionally offered by R+W avoids leaking grease and at the same time penetration of coupling damaging ，并在同一時間耦合的滲透破壞的物質(zhì)。功能專利?+寬prinziple R+W39。 An outstanding feature opf the R+W design is an easy radial adjustment which clearly facilitates adjustment of the + W設(shè)計是一件容易的徑向調(diào)整，明顯促進了耦合調(diào)整。7 / 7。 For each coupling model there are four different function systems available:對于每個耦合模型有四個不同功能的系統(tǒng)可用： single position = attempting reengagement automatically in the same position (360176。 Due to the spring loaded ball detent design of the coupling high repeating accuracy of the preset disengagement torque is reached and continuous operation is ensured when using a ball detent design Torque Limiter vs. a slip ，使用的球制動力矩限制器的設(shè)計主場迎戰(zhàn)一滑離合器。 An Oring is inserted in the base element of the coupling and covered by an extended Actuation ring. O形圈是在插入耦合基礎(chǔ)元素和擴展驅(qū)動環(huán)蓋。 The inserts are calibrated most precisely in order to ensure perfect mounting of the ，64 D和80答：插入的選擇是最精確校準(zhǔn)，以保證完美的耦合安裝。力矩限制器與阻尼性能?+寬設(shè)計并推出了與阻尼性能的新過載保護。一個偉大的品種The advantage of ball detent design Torque Limiters is the separation of the drive and the driven elements in milliseconds in case of an 。 Immediate availabillity of the machine after reengagement of the Torque Limiter can be 。 The constructive benefit is ensured through fast availability of applications after a crash. 建設(shè)性的好處是保證應(yīng)用的快速可用性通過后墜毀。恒溫器本身熱容量是較小的，而且其限時特性是由電機的熱容量特性決定的，因此這是一個可靠的方法。因此必須采取各種方法組合的方式。當(dāng)其在預(yù)先確定的時間內(nèi)運行時，電機一般不會超負(fù)荷。因此，電動裝置空心輸出軸的內(nèi)徑必須大于明桿閥門的閥桿外徑。該裝置由電力來驅(qū)動，其運動過程可由行程、轉(zhuǎn)矩或軸向推力的大小來控制。Areas of applications of the Torque Limiters ranging from to 2,800 Nm can be found in any type of mechanical dynamic drives are being continously improved by the use of preset Torque Limiters. When the overload occurs the Torque Limiters disengage in milli seconds.