【正文】 箱底部 油箱底部采用傾斜的方式，用焊接方法與壁板焊接而成，采用這種結(jié)構(gòu)，便于排油，底部最低處有排油口。在本次設(shè)計中，采用隔板的方式，主要為了將沉淀的雜質(zhì)分開。3) 減少油箱噪音防噪音問題是現(xiàn)代機械裝備設(shè)計中必須考慮的問題之一。在油箱上設(shè)計安裝濾油器、空氣濾清器和疊加閥基板的孔和螺紋。1) 上置式安裝 將液壓泵和與之相聯(lián)的油管放在液壓油箱內(nèi)()，這種結(jié)構(gòu)型式緊湊、美觀，同時電動機與液壓泵的同軸度能保證，吸油條件好，漏油可直接回液壓油箱，并節(jié)省內(nèi)地面積。將液壓泵與電動機連接方式,采用聯(lián)軸器，用來把電動機軸與泵軸聯(lián)接在一起，機器運轉(zhuǎn)時兩軸不能分離；只有在機器停車并將聯(lián)接拆開后，兩軸才能分離。l 聯(lián)軸器的工作轉(zhuǎn)速高低和引起的離心力大小。但在使用中應(yīng)定期檢查彈性圈。KA=，計算得： =9550=3) 確定聯(lián)軸器的型號 根據(jù)計算轉(zhuǎn)矩Tca及所選的聯(lián)軸器類型，按照Tca≤[T]的條件出聯(lián)軸器標準中選定該聯(lián)軸器型號。（2）聯(lián)軸器與電動機軸配合時采用H7/H6配合，與泵軸則采用H8/H7的配合（3），軸線傾角不大于40′過濾器的功用是清除油液中的各種雜質(zhì)，以免其劃傷、磨損、甚至卡死有相對運動的零件或堵塞零件上的小孔及縫隙，影響系統(tǒng)的正常工作，降低液壓元件的壽命，甚至造成液壓系統(tǒng)的故障。過濾器的過濾能力應(yīng)大于通過它的最大流量，～。大氣中有各種異物，例如灰塵、砂粒等，會對液壓系統(tǒng)的油液造成污染，它們將加速系統(tǒng)的磨損，從而降低系統(tǒng)的使用壽命。選擇液壓油時需要考慮的因素很多，其中最主要的是根據(jù)使用條件選用粘度合適的液壓油。3)工作部件運動速度較低的往復(fù)運動液壓系統(tǒng)低粘度的液壓油，工作部件作旋轉(zhuǎn)運動的液壓系統(tǒng)，可選用粘度較高的液壓油。一個液壓系統(tǒng)中有很多控制閥，這些控制閥可以用不同方式來連接或者集成。無管集成可分為板式、塊式、鏈式、疊加閥式和插裝式5種主要形式。根據(jù)流量選擇液壓系統(tǒng)中各執(zhí)行機構(gòu)的疊加式控制閥，并選擇對應(yīng)的基塊，組成執(zhí)行機構(gòu)的控制閥集成。蓄能器采用法蘭式連接，放置在油箱一側(cè)，通過底板接入液壓系統(tǒng)回路。清洗介質(zhì)可用液壓油，清洗時間一般為24小時，特殊情況下也不超過10小時，清洗效果以回路過濾網(wǎng)上無雜質(zhì)為標準?！　≡谇逑从吐返幕芈飞希瑧?yīng)裝過濾器或過濾網(wǎng)。其主要內(nèi)容是檢查液壓裝置的各元件和部件，判斷其性能和壽命，并對產(chǎn)生故障的部位進行檢修或更換元件。系統(tǒng)中主要通過節(jié)流閥來控制通過的流量來實現(xiàn)所要求的功能，泵站中采用兩個泵，為開一備一的形式，閥的形式為管路連接與疊加閥配合的方式簡化了加工工藝。謝辭畢業(yè)設(shè)計是對我大學(xué)三年的總結(jié)，因而促使我投入了極大的熱情和積極性，通過這次設(shè)計，我對本專業(yè)知識的掌握有了一個階段性的飛躍，非常感謝我的指導(dǎo)老師楊國權(quán)老師的耐心指導(dǎo)，楊老師在百忙之中對我們進行了詳細耐心的輔導(dǎo)，并為我們提供了許多非常重要的資料，為我們提出了許多的寶貴意見，帶領(lǐng)我們圓滿地完成了本次設(shè)計。參考文獻[1] 《液壓設(shè)計手冊》，機械工業(yè)出版社[2] 成大先，《機械設(shè)計手冊3. to provide protection form waste flushing。 pieces of wood, corrugated steel sheets or wire mesh sheets.In the USA, roof bolts are being used as a form of support in square roadways. This is done either by fastening a weaker bed to a stronger bed above, or by fastening a weaker bed to a stronger to form, in effect, one roof beam string enough to support the excavation. In Britain, this system of support has been used mainly in roadways with solid coal sides and the principle of binding strata together by bolts has been used as an extra support to the normal standing support. Floor bolting is also practiced at times.Roadway supports in use undergroundWhere the roadway in a seam meets the coalface, there is usually a change in height depending on the thickness of the coal and the height of the roadway. In most seams, extra height is obtained in the roadways by breaking down the stone just behind the coalface and over the roadway, which forms the roof of the seam. This operation is known as ‘ripping’ the face of rock exposed is known as the ‘ripping face’ and the edge as the ‘ripping lip’. In the space between the last roadway arch and the ripping face, special supports are set to secure the roof and to prevent accidents form falling stones. These supports consist of two girders (forepoling or horse head girders), which are suspended from the roadway supports by special brackets (horse head brackets). Pieces of wood are placed above the fore poling girders and wedged against the roof. Beneath the ripping lip, the roof is supported by girders and props, the girders extending from the face, or by girders and props, which are set parallel to the face. In addition to these girders, chocks are often set to ensure adequate support.The face of the ripping is also secured to prevent stones falling. This is often done by suing Lbars supported by fullwidth girders and props and packed behind with wood covering pieces.All persons who work on the face must pass beneath this area. Therefore, it must be made particularly secure if accidents are to be prevented.To prevent the collapse of roadway supports if a fall of roof should occur near the ripping face, it is necessary to secure the arches by using struts, which tie them together. Therefore, any force imposed upon the arches near the ripping face is transmitted along the line of arches in the roadway and the force is resisted.How powered support workThe plete unit is so designed that by operating control valves, the armored flexible conveyor and support units are moved forward to their new positions without hindrance to coal getting.STEP A The vertical supports are extended to bring the roof beam into contact with the newly exposed roof.STEP B the powerloader has passed on the loading run and the doubleacting ram is extended, pushing forward the conveyor.STEP C the vertical supports are lowered.STEP D the ram is set into reverse and the support is drawn up to new face line. It is then to the roof.Development of coalface supportsThe early types of coalface supports consisted of wood props and wood bars. The bars were usually halfround, being made by splitting props of suitable size.Owing to the weakness of wood supports, steel was eventually introduced and both steel props and steel bars were used. The steel bars were corrugated to increase their strength. In order to prevent the steel props from slipping underneath the corrugated steel strap, lips, made of pieces of soft wood, were set between the prop and the bar. The lid gave some measure of yield in the support and helped to prevent the prop and bar from being damaged.The props were usually set square between the floor and roof but sometimes, in inclined seams, they were under set.These supports were called “rigid supports”, although all supports yield a little under the pressure from roof or floor strata.With the introduction