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華北科技學(xué)院畢業(yè)設(shè)計(jì)
板料折彎機(jī)液壓系統(tǒng)設(shè)計(jì)
摘要：折彎機(jī)對(duì)折彎金屬板料具有較高的勞動(dòng)生產(chǎn)率和較高的折彎精度。當(dāng)折彎不同厚度的板料時(shí)，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(jì)主要設(shè)計(jì)折彎機(jī)的液壓系統(tǒng)，在整個(gè)設(shè)計(jì)過程中，不影響設(shè)計(jì)要求的情況下，本設(shè)計(jì)能用標(biāo)準(zhǔn)件的在盡量采用標(biāo)準(zhǔn)件，從而提高整個(gè)折彎機(jī)的性價(jià)比。因而本設(shè)計(jì)主要對(duì)液壓系統(tǒng)中的液壓缸和油箱進(jìn)行了設(shè)計(jì)。
在設(shè)計(jì)過程中我參考了很多設(shè)計(jì)手冊。使我學(xué)會(huì)了很多知識(shí)，讓我了解到作為一個(gè)設(shè)計(jì)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(jìn)行了一些創(chuàng)新，使缸的制造成本有些降低。但對(duì)缸的某些復(fù)雜結(jié)構(gòu)進(jìn)行了簡化，對(duì)于油箱的設(shè)計(jì)，我在遵守設(shè)計(jì)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(jì)中得到更多的鍛煉，更適應(yīng)將來的工作。
此次設(shè)計(jì)對(duì)于提高工作效率節(jié)約工作時(shí)間具有較好的意義，為向數(shù)控和智能化折彎機(jī)進(jìn)行設(shè)計(jì)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(jī)簡介.............................................................1
1.1.2設(shè)計(jì)內(nèi)容簡介...........................................................3
1.2液壓傳動(dòng)的基本知識(shí).......................................................3
1.2.1液壓系統(tǒng)的概念.........................................................3
1.2.2液壓傳動(dòng)的組成.........................................................4
1.2.3液壓系統(tǒng)的優(yōu)點(diǎn).........................................................4
2液壓系統(tǒng)設(shè)計(jì)...............................................................6
3系統(tǒng)元件設(shè)計(jì)...............................................................8
3.1液壓缸的設(shè)計(jì).............................................................8
3.1.1設(shè)計(jì)液壓折彎機(jī)的技術(shù)參數(shù)...............................................8
3.1.2負(fù)載分析和運(yùn)動(dòng)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(jì)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(jì)..............................................................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(jì)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(jī)的選擇............................................................23
4結(jié)論......................................................................25
參考文獻(xiàn)...................................................................26
附錄.......................................................................27
致謝.......................................................................36
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