【機械類畢業(yè)論文中英文對照文獻翻譯】舉升系統(tǒng)失效分析,機械類畢業(yè)論文中英文對照文獻翻譯,機械類,畢業(yè)論文,中英文,對照,對比,比照,文獻,翻譯,系統(tǒng),失效,分析 附錄A Lifting sytem failure analysis Below a certain brand can explain a type of lift accident .Because lifting machine structure is more complicated ,e to maintenance enterprise use it frequently in work under high load ,We have to consider its damaged condition. actual use, as repeated wear and tear of fatigue damage ,So anytime possible lifting system failure . If the downturn is likely to cause maintenance personnel injured and vehicles damaged . After the failure of the lift inspection, analysis, found its existence defects in design. This product for the mechanical lifting machine, uses the pin shaft transmission, driven by shaft lifting arm motion realization Auto lift. Unless the power cut off the motor car, driven shaft lifting stop failure analysis personnel of nantong product quality supervision, inspection ZouLei can observed. To effectively guarantee the safety, auto lift should lock up the device. In order to effectively To protect the security, automotive lift Should stop the browser and the backstop. From The Brand Lift of the occurrence of several Lapsed since the incident, the principal, Vice-nut at the same time lead to wear and tear due to strong Decreases occurred in the thread root cut Letter, which of course, and materials selection, Manufacturing quality, the use of maintenance due to Su-relevant, but imagine if Is an independent work of the backstop , And even in the absence of Vice-nut, so that The possibility of a thing you Moment of downtime in order to achieve things, it does not work independently of the stop device and the backstop , And only made use of the role of self-locking screw to prevent the decline in our care arm Know that the conditions for self-locking thread is the thread friction angle or Chaetoceros. It's an But to protect the whole body is fitted with a nut in the bottom of the main vice of the so-called Nut, through institutions linked synchronous rotation with the main nut. There is no denying that when the Lord, Vice-nut There is a certain gap between the, if nut the main event of an accident, child care Vice-nut will be on the arm and not the accidents. However, the main, the Deputy nut As the gap between the main nut and gradually reduce the wear and tear, when reduced to a Certain extent, it must be replaced with new ones of the main nut, otherwise, continue to use When the owners go, the gap between the Deputy nut completely disappear, the Lord, is Vice-nut Quality has become one, and act as security devices has been gradually Vice nut Until all the nuts to replace the main workload. At this point if an accident such as Thread occur due to wear and cut the root, see the attached map, security protection devices can play It should be the role to be sure, if the timely replacement of the main nut, can be avoided Some accidents, but not all users have the professional knowledge and Lord, the gap between the Vice-nut is not clear at a glance from the outside can, it is necessary to disassemble Therefore, the use of cars to check whether the lift should be independent Work backstop safety protection device, if not, be sure to strengthen the Inspection and timely replacement of drive nut to avoid accidents. If not, then, be sure to strengthening inspection and change in time transmission nut, lest produce an accident. The manufacturers character, also Should improve design. Hope so as to remind each manufacturer . 舉升系統(tǒng)失效分析 下面是某個品牌的一次事故分析,因為起重機械結(jié)構(gòu)比較復雜,維護企業(yè)使用它經(jīng)常在工作在高負載時,我們必須考慮其受損的情況.實際使用中因為重復的磨損及疲勞損傷,所以隨時可能發(fā)生舉升系統(tǒng)的損壞事故。如果其意外下滑可能引起維修人員受傷,車輛的受損。 舉升失敗后,對其檢測、分析,發(fā)現(xiàn)其存在設(shè)計上的缺陷。本產(chǎn)品為機械舉升機,采用銷軸傳動,通過驅(qū)動橫軸來使舉升臂運動實現(xiàn)汽車舉升。除非切斷汽車電源，驅(qū)動軸的失效分析人員來自南通產(chǎn)品質(zhì)量監(jiān)督檢驗站的鄒雷才可以觀察到。為了有效地保障安全,汽車舉升機應(yīng)該有止裝置。為了有效地保護安全該品牌的舉升機發(fā)生的數(shù)起失效事故看, 都是主、副螺母同時因磨損導致強度降低發(fā)生了螺紋根切所致, 這固然與材料的選用、制造質(zhì)量、使用維護等因素有關(guān), 但設(shè)想一下若是具有獨立工作的逆止器, 即使沒有副螺母, 這樣的事有可能發(fā)生嗎轉(zhuǎn)動以實現(xiàn)停機外, 該機并無獨立工作的停止器與逆止器, 只是利用了螺紋的自鎖作用來防止托臂下滑的我們知道, 螺紋自鎖的條件是螺紋的升角毛摩擦角。它的安全保護機構(gòu)不過是了一只裝在主螺母下方的所謂的副螺母, 通過連動機構(gòu)與主螺母同步轉(zhuǎn)動。不可否認, 當主、副螺母之間存在一定的間隙時, 若主螺母發(fā)生意外時, 托臂將落在副螺母上而不致于發(fā)生意外。但是, 主、副螺母之間的間隙隨著主螺母的磨損而逐漸減少, 當減少到一定程度時, 就必須更換新的主螺母, 不然的話, 繼續(xù)使用下去而當主、副螺母間的間隙完全消失時, 主、副螺母實質(zhì)上已成為一體了, 充當安全保護裝置的副螺母已逐漸直至全部接替了主螺母的工作負荷。此時若發(fā)生意外如螺紋因磨損而發(fā)生根切, 安全保護裝置能否起到應(yīng)有的作用，誠然若能及時發(fā)現(xiàn)并更換主螺母, 可以避免一些意外事故的發(fā)生, 但使用者并非都具有專業(yè)知識, 而且主、副螺母之間的間隙并非從外面可以一目了然, 要拆開它后才可以發(fā)現(xiàn)。因此使用汽車舉升機時應(yīng)檢查一下是否具有獨立工作的安全保護裝置逆止器, 如若沒有的話, 務(wù)必加強檢查, 及時更換傳動螺母, 以免發(fā)生意外。對廠家而言, 也應(yīng)改進設(shè)計。如果不是,那么一定要加強檢查,及時改變傳輸螺母,以免發(fā)生意外。對制造商而言,也應(yīng)該改進設(shè)計，希望以此提醒各廠家。