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華北科技學(xué)院畢業(yè)設(shè)計 板料折彎機液壓系統(tǒng)設(shè)計 摘要：折彎機對折彎金屬板料具有較高的勞動生產(chǎn)率和較高的折彎精度。當折彎不同厚度的板料時，應(yīng)選擇不同開口的V槽，若采用不同形狀的上下模具，可折彎成各種形狀的工件。 本設(shè)計主要設(shè)計折彎機的液壓系統(tǒng)，在整個設(shè)計過程中，不影響設(shè)計要求的情況下，本設(shè)計能用標準件的在盡量采用標準件，從而提高整個折彎機的性價比。因而本設(shè)計主要對液壓系統(tǒng)中的液壓缸和油箱進行了設(shè)計。 在設(shè)計過程中我參考了很多設(shè)計手冊。使我學(xué)會了很多知識，讓我了解到作為一個設(shè)計工程師所必須作的事。而且我又在不影響液壓缸性能的前提下進行了一些創(chuàng)新，使缸的制造成本有些降低。但對缸的某些復(fù)雜結(jié)構(gòu)進行了簡化，對于油箱的設(shè)計，我在遵守設(shè)計手冊要求的前提下，增加了一些輔助功能，使油箱更趨于完善、合理。以使我在本次設(shè)計中得到更多的鍛煉，更適應(yīng)將來的工作。 此次設(shè)計對于提高工作效率節(jié)約工作時間具有較好的意義，為向數(shù)控和智能化折彎機進行設(shè)計打好基礎(chǔ)。 關(guān)鍵詞：液壓系統(tǒng)；液壓缸；油箱 Abstract:The machine have high productivity and precision when it working on plank materials. When the machine breaking different thickness plank materials, we should select distinct molds, which have different V-groove. If use different shape up-down molds the break machine could turn plank materials into distinctive components. The design mainly relate to Hydraulic pressure system. Though the whole design, I try my best to use standard-part, if the use not effect the system’s request, so that I could get higher property-price scale. So the design I do is mainly about the Hydraulic pressure vat and . Fuel tank of the Hydraulic pressure system. The design of the integrated use of the mechanical design and other courses of knowledge, analysis and mechanical design to solve the problem, further consolidate, deepen and broaden the knowledge acquired. When I design Hydraulic pressure vat and Fuel tank,I make the structure simpler and more reasonable. Of course, my change not only effect its function but also enhance it. I try my best to carry out best design. The design saves the operating time and improve the efficiency of working .It is have a better sense for us ,and build the foundation for us to design the numeric control and the intellectualized break-machine. Key worlds: Hydraulic pressure system;Hydraulic pressure vat;Fuel tank 目錄 1緒論.......................................................................1 1.1課題背景.................................................................1 1.1.1折彎機簡介.............................................................1 1.1.2設(shè)計內(nèi)容簡介...........................................................3 1.2液壓傳動的基本知識.......................................................3 1.2.1液壓系統(tǒng)的概念.........................................................3 1.2.2液壓傳動的組成.........................................................4 1.2.3液壓系統(tǒng)的優(yōu)點.........................................................4 2液壓系統(tǒng)設(shè)計...............................................................6 3系統(tǒng)元件設(shè)計...............................................................8 3.1液壓缸的設(shè)計.............................................................8 3.1.1設(shè)計液壓折彎機的技術(shù)參數(shù)...............................................8 3.1.2負載分析和運動分析.....................................................8 3.1.3液壓缸主要零部件結(jié)構(gòu),材料與技術(shù)要求....................................9 3.2液壓泵的選擇............................................................16 3.2.1液壓泵的性能參數(shù)及計算公式............................................16 3.2.2軸向柱塞泵的工作原理..................................................19 3.2.3軸向柱塞泵的工作要求..................................................20 3.2.4油泵的選擇............................................................20 3.3油箱的設(shè)計..............................................................20 3.3.1油箱的功能............................................................20 3.3.2油箱的類型............................................................20 3.3.3油箱的設(shè)計要求及結(jié)構(gòu)..................................................21 3.3.4油箱附件..............................................................22 3.4系統(tǒng)其它元件的選用......................................................23 3.4.1蓄能器的選用..........................................................23 3.4.2電機的選擇............................................................23 4結(jié)論......................................................................25 參考文獻...................................................................26 附錄.......................................................................27 致謝.......................................................................36 I