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全液壓鉆機液壓系統(tǒng)設(shè)計與plc控制(存儲版)

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【正文】 .................. 27 液壓系統(tǒng)的效率的檢查 .............................................................. 28 第七章 液壓鉆機的 PLC 控制系統(tǒng)的設(shè)計 ...................................... 30 PLC 的特點及應(yīng)用 ...................................................................... 30 全液壓鉆機的 PLC 控制系統(tǒng)的方案設(shè)計 .................................. 30 液壓鉆機的控制電路與 PLC 型號選定 ...................................... 31 液壓鉆機的控制電路設(shè)計 ....................................................... 31 PLC 型號選定 ............................................. 錯誤 !未定義書簽。 致謝 ....................................................................... 錯誤 !未定義書簽。 此次進行的畢業(yè)設(shè)計課題正是 關(guān)于這個方面的緊跟社會生產(chǎn)力的步伐。其次要分析每個機構(gòu)的工作狀況及受載情 況。s petition. The development of productive forces decided to every enterprise and even the fate of the country. Along with the progress of science and technology, more and more scientific knowledge have been applied to production practice, the hydraulic system because of its inparable superiority also gradually being used in many fields. Due to its stable and reliable hydraulic system and other factors, such as big power in the daily production of mechanical equipment in the swift and violent development. Production efficiency is an important index to the survival of an enterprise, the development of an enterprise and its production efficiency is inseparable, many thanks to the development of industrialization of moving equipment use into industries instead of traditional artificial manual labor. PLC system with its strong maneuverability simple easy to use, safe and reliable gradually into the many emerging areas, so the bination of hydraulic system and PLC control system used in the field of engineering machinery. On the graduation design topic is about the keep up with the pace of social productivity. Subject to full hydraulic drilling rig hydraulic system design and PLC control, mainly embodies the PLC control theory application in mechanical production. The design task of driving system has a unified control hydraulic system, hydraulic system differences directly affect the success or failure of the final design, while the control system with PLC system for full operation, the part directly determines its market in the field of production, productivity in the field of automation. Its basic design parameters is: the drill pipe to push schedule for 600 mm, maximum thrust 30 KN, the pulling force of 60 largest KN, return to drill for: speed of 10100 r/min, the maximum torque of 2021Nm. Hydraulic system design and choice of fully hydraulic drill PLC control quantity of cloth is divided into design objects. This topic mainly is to use the PLC control system of hydraulic drive knowledge and knowledge, reflect the mechanical and hydraulic knowledge, and the bination of electrical control. In need to plete the following: in the design of hydraulic schematic diagram design, job requirement analysis, analysis of working condition, the determination of process parameters, the structure and principles of fully hydraulic drill, the selection of hydraulic ponents, the performance of calculus, dynamic simulation, the choice of control scheme, the performance of type selection of PLC, ladder diagram design, PLC hardware circuit design and simulation and verification in the hydraulic testbed. Conclusion from the above points you need to first the basic working principle of hydraulic drilling rig and its basic position have a basic understanding of, when the design should fully consider the work of the actual situation. Secondly to analyze the working condition of each institution and loading conditions. And then the next step for us laying a foundation for the analysis and design of the hydraulic system provides theory basis. According to the analysis of the front to consider the choice of hydraulic ponents. Key words: operating mode analysis。所以在以后的社發(fā)展進程中機械相關(guān)設(shè)備與液壓系統(tǒng)及 PLC 控制系統(tǒng)相結(jié) 合的方向會越來越多。通過我們這個課題的設(shè)計克服鉆機原來所具有的部分不足使其性能得以提高,并實現(xiàn)機械生產(chǎn)中的自動化。由以上的要求,把它們連接在一起就構(gòu)成工程鉆機自己的液壓系統(tǒng)。 該的操縱裝置是系統(tǒng)對執(zhí)行元件控制、換向閥等機構(gòu)的操作裝置,通過管路連接將所有的執(zhí)行元件集中于一個操作平臺上,通過使用液壓手柄實現(xiàn)對鉆機的各種工作過程的控制。 在實際進程中,因為材料的不同,給進機身與變幅裝置在實際鉆進循環(huán)中動作配合 是不同的,根據(jù)現(xiàn)場具體情況來確定,上述情況只是基于理想的鉆進過程。 確定液壓執(zhí)行元件的類型 首先在選定液壓系統(tǒng)原理圖的時候, 必須按照主機所需基本要求去確定液壓執(zhí)行元件型。 表 按工作壓力選取 d/D 工作壓力 /MPA ≤ ~ ≥ d/D ~ ~ 同理可以確定夾緊缸為 DN10010020 號 沈陽化工大學(xué)科亞學(xué)院學(xué)士學(xué)位論文第四章 擬定液壓系統(tǒng)原理圖 8 選擇液壓基本回路 調(diào)壓回路 液壓系統(tǒng)在工作時,液壓泵必須向系統(tǒng)提供所需要壓力的液壓油,而且應(yīng)做到節(jié)省能源,減少液壓油液發(fā)熱,還應(yīng)當(dāng)提升執(zhí)行元件運動保障平穩(wěn)性。過濾器是由于它工作特殊來進行設(shè)置的 ,由于在這么長時間的應(yīng)用 ,有很多液壓缸被拉傷的案例 ,因此對液壓泵出口進行精密過濾是非常必要的。反過來推進缸向后退時 ,同時鉆桿反向可以旋轉(zhuǎn) , 拔出來鉆桿 。這個閥的工作壓力大小為 35MPa,允許通過的最大流量是 ( 4 103m3/s) ,由《機械設(shè)計手冊》第五卷表 — 133 選用 DF— F50K1。它的參數(shù)如表 所示 表 換向閥的型號及 參數(shù)值 閥號 型號 公稱直徑 ( mm) 額定壓力 ( MPa) 額定流量( L/min) 1 D4— 02— 3C— AC 16 200 2 D4— 02— 3C— AC 32 500 壓力閥的選擇 減壓閥 1:它應(yīng)用在排油油路上,從而可以實現(xiàn)該工作油路的壓力大小是25MPa。它的參數(shù)值如表 7 所示 單向調(diào)速 閥 2:用在鉆孔油缸的油路上,因為配合使用而完成多個同步運動。 由《機械設(shè)計手冊》第五卷表 — 30 可以得知柱塞泵用油粘度推薦值是 40— 98mm2/s?,F(xiàn)在先暫時按自然環(huán)境可以冷卻來設(shè)計油箱的容量大小。 液位計的選擇 在設(shè)計時通常需要安放油標(biāo),以此用來表示裝置;而且由于溫度的要求比較高,所以必需帶有溫度計。同時由于蓋板不可以直接焊接上去,所以它需要進行裝拆等工作,所以最好決定 用螺栓聯(lián)接上去。從而來確定出蓋板與液位計和液位計距前面板的距離長短。而且必須考慮到以下幾點: 1. 首先由于它受到空間的限制,空間高度較小; 2. 其次此處不需要再增加其它設(shè)備; 3. 最后樁機的油箱一般從裝上開始就很少移動。 于是設(shè)計管徑直徑: d min 4 3 . 257 . 3 21 1 3 0vqv1 1 3 0 2 ??mm (525) 管壁厚: σmin = mmPd 4 .71152 4 3 .225][2 ????? (526) 膠管的選擇 在實際工作中膠管按運運可以分為高壓和低壓兩種;膠管可以用來連接兩個相互之間可以運動的管道部件,高壓膠是用鋼絲做成構(gòu)架的膠管,在我們的這個液壓鉆機的設(shè)計當(dāng)中選擇如下膠管表 所示: 沈陽化工大學(xué)科亞學(xué)院學(xué)士學(xué)位論文第五章 液壓系統(tǒng)性能參數(shù)的確定 26 表 膠管表 油路名稱 鋼絲編織膠管層數(shù) 內(nèi)徑 mm 單只壓油缸進油路 III 16 壓樁系統(tǒng)總油路 III 32 單只 壓油缸進油路 III 16 壓樁系統(tǒng)總油路 III 32 行走系統(tǒng) III 16 頂升系統(tǒng) III 19 沈陽化工大學(xué)科亞學(xué)院學(xué)士學(xué)位論文第六章 液壓系統(tǒng)性能的演算 27 第六章 液壓系統(tǒng)性能的驗算 對于液壓系統(tǒng)性能我們需要進行驗算的項目非常多,其主要包括為液壓系統(tǒng)的效率檢查和系統(tǒng)的壓力損失驗算等
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