【文章內(nèi)容簡介】 設(shè)計最突出的優(yōu)點。采用不銹鋼清洗槽。長期使用洗碗機也不易有異味，且容易清洗。設(shè)計缺陷：1. 對于洗碗過程中的食物殘渣，雖洗碗機中設(shè)有過濾裝置，但最終還是需要人工把它拿出，這并不能體現(xiàn)出洗碗機的全自動化。2. 此洗碗機僅作為洗碗，可適當(dāng)考慮讓其與洗瓜果蔬菜結(jié)合起來，達到一機多用，這樣更易得到消費者的認可，有利于此類產(chǎn)品的普及。3. 洗滌程序不完善。對于一臺經(jīng)濟而實用的智能洗碗機，除具有標準洗滌程序外，還要具備可以根據(jù)用戶的不同要求設(shè)置不同的洗滌方式。如果沒有消費者的高度認同和接受，家用洗碗機事業(yè)很難發(fā)展，消費者期待更便宜的價格，更節(jié)約的清洗方式，更人性化的操作方式，更符合，更具有中國特色的家用洗碗機產(chǎn)品，家用超聲波洗碗機的出現(xiàn)，無疑為洗碗機市場的發(fā)展探索提供了另一種具有前途的方式。 致 謝本設(shè)計是在李玉平老師的悉心指導(dǎo)和熱情關(guān)懷下完成的，李玉平老師在我的畢業(yè)設(shè)計寫作過程中，嚴格要求，精心指導(dǎo)，對我不清楚的問題進行了認真的解答，并為我指出更正了設(shè)計中的不當(dāng)之處，使我在整個過程中少走了很多彎路，在這里，對李玉平老師表示特別感謝。另外，在畢業(yè)設(shè)計寫作過程中，各位同學(xué)也給予了我很大的的幫助，使我感受到了合作和信息共享的重要性。參考文獻：[ 1 ] 林仲茂, 方啟平. 超聲波清洗( Ⅱ) [J] .化學(xué)清洗, 1998, (5): 4144.[ 2 ] 林仲茂, 方啟平. 超聲波清洗( Ⅲ) [J] . 化學(xué)清洗, 1998, (6): 4446.[ 3 ] 任建新， 物理清洗 [ M ] .北京: 化學(xué)工業(yè)出版社, 2000.[ 4 ] 陳勤超， 水流式與氣泡式蔬菜清洗機清洗效果的比較與研究[D]．武漢 ：華中農(nóng)業(yè)大學(xué) ，2007．[ 5 ] 閻石，數(shù)字電子技術(shù)基礎(chǔ). 北京：高等教育出版社，第五版；[ 6 ] 康光華，模擬電子技術(shù)基礎(chǔ). 北京：高等教育出版社，第五版.[ 7 ] 單片微型計算機原理與應(yīng)用，華中科技大學(xué)出版社，第二版.[ 8 ] [M].現(xiàn)代制造。2004（2）.[ 9 ] 周里群，.[10] ，2002(6):7276[11] 劉晉春、趙家齊、趙萬聲．特種加工[M]．北京：機械工業(yè)出版社：2001[12] 成大先．機械設(shè)計手冊[M]．北京：化學(xué)工業(yè)出版社，2003：212224． 附錄一:英文文獻原文Optimized Kinematics of Mechanical Presses with Noncircular GearsE. Doege ( l ) , M. HindersmannReceived on January 8, 1997Abstract：The quality of parts manufactured using metal forming operations depends to a large degree on the kinematics of the press ram. Noncircular gearsy to obtain those stroketime behaviours we aim at as an optimum for the various metal forming ope with a rotationalangledependent speed ratio in the press drive mechanism offer a new wa rations in terms of manufacturing. The paper explains the principle using a prototype press which was built by the Institute for Metal Forming and Metal Forming Machine Tools at Hanover University. It will present the kinematics as well as the forces and torques that occur in the prototype. Furthermore, the paper demonstrates using one example of deep drawing and one of forging that the press drive mechanism with noncircular gears may be used advantageously for virtually all metal forming operations.Keywords: Press, Gear, Kinematics1 lntroductiorIncreasing demands on quality in all areas of manufacturing engineering, in sheet metal forming as well as in forging, go hand in hand with the necessity to make production economical. Increasing market orientation requires that both technological and economic requirements be met. The improvement of quality, productivity and output by means of innovative solutions is one of the keys to maintaining and extending one39。s market the production of parts by metal forming, we need to distinguish between the period required for the actual forming process and the times needed to handle the part.With some forming processes we have to add time for necessary additional work such as cooling or lubrication of the dies. This yields two methods of optimization, according to the two aspects of quality and output. In order to satisfy both aspects, the task is to design the kinematics taking into account the requirements of the process during forming。 also to be considered is the time required for changing the part as well as for auxiliary operations in line with the priority of a short cycle time.2 Pressing Machine RequirementsOne manufacturing cycle, which corresponds to one stroke of the press goes through three stages: loading,forming and removing the part. Instead of the loading and removal stages we often find feeding the sheet, especially in sheer cutting. For this, the press ram must have a minimum height for a certain time. During the forming period the ram should have a particular velocity curve,which will be gone into below. The transitions between the periods should take place as quickly as possible to ensure short cycle time. The requirement of a short cycle time is for business reasons, to ensure low parts costs via high output. For this reason stroke numbers of about 24/min for the deep drawing of large automotive body sheets and 1200/min for automatic punching machines are standard the number of strokes in order to reduce cycle times without design changes to the pressing machine results in increasing strain rates, however. This has a clear effect on the forming process, which makes it necessary to consider the parameters which determine the process and are effected by it.In deep drawing operations, the velocity of impact when striking the sheet should be as low as possible to avoid the impact. On the one hand, velocity during forming must be sufficient for lubrication. On the other hand, we have to consider the rise in the yield stress corresponding to an increase in the strain rate which creates greater forces and which may cause fractures at the transition from the punch radius to the side wall of the part.In forging, short pressure dwell time is desirable. As the pressure dwell time drops the die surface temperature goes down and as a result the thermal wear This is counteracted by the enhanced mechanical wear due to the greater forming force, but the increase due to the strain rate is pensated by lower yield stress because of the lower cooling of the part. The optimal short pressure dwell can nowadays be determined quantitatively using the finite element method [3]. In addition to cost avoidance due to reduction in wear, short pressure dwell time is also an important technological requirement for the precision forging of near net shape parts, which has a promising future.The requirements of high part quality and high output will only be met by a machine technology which takes into account the demands of the metal forming process in equal measure to the goal of decreasing work production costs. Previous press designs have not simultaneously met these technological and economical requirements to a sufficient extent, or they are very costly to design andmanufacture, such as presses with link drives [6]. This makes it necessary to look for