本文關(guān)鍵詞： 首繩更換裝置 參數(shù)匹配 電液調(diào)速 AMESim　出處：《太原理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：我國《煤礦安全規(guī)程》第379條明確規(guī)定：摩擦提升機(jī)鋼絲繩(即首繩)的使用期限不得超過2年。首繩快速更換裝置是適應(yīng)煤礦提升機(jī)首繩快速更換需要的關(guān)鍵裝備,其液壓控制系統(tǒng)性能直接影響換繩裝置的正常運(yùn)行,因此對(duì)首繩快速更換裝置液壓控制系統(tǒng)進(jìn)行研究具有重要的意義。 本文設(shè)計(jì)了一種首繩快速更換裝置液壓控制系統(tǒng),主要由防跑繩裝置液壓控制系統(tǒng)、鎖繩裝置液壓控制系統(tǒng)和步進(jìn)送繩裝置步進(jìn)調(diào)速系統(tǒng)組成。 本文在無繩工況條件下建立了防跑繩裝置液壓控制系統(tǒng)的電磁溢流閥和液壓缸推移組件仿真模型。研究了系統(tǒng)壓力對(duì)保壓過程和泄壓過程影響,分析了四缸不同步產(chǎn)生的原因,匹配了泄壓換向閥額定流量參數(shù)；在穿繩工況下建立了液壓缸鎖繩負(fù)載模型,仿真研究了鎖繩裝置液壓系統(tǒng)在鎖繩過程動(dòng)態(tài)性能。 本文建立了鎖繩裝置液壓控制系統(tǒng)的單向順序閥模型和鎖繩負(fù)載模型。匹配了系統(tǒng)壓力和流量等參數(shù),針對(duì)液壓缸不同步產(chǎn)生液壓膠管彎曲現(xiàn)象,提出采用節(jié)流口液壓缸,并匹配節(jié)流口直徑和先導(dǎo)式單向順序閥的阻尼孔直徑,對(duì)鎖緊液壓缸鎖繩過程的動(dòng)態(tài)性能進(jìn)行了分析研究。 設(shè)計(jì)了步進(jìn)送繩裝置的電液調(diào)速系統(tǒng),選擇伺服閥作為調(diào)速系統(tǒng)的核心元件,為了增加送繩液壓缸空載伸出時(shí)的速度和減小重載送繩時(shí)的節(jié)流損失,設(shè)計(jì)了差動(dòng)連接回路。通過PID控制器對(duì)電液調(diào)速系統(tǒng)進(jìn)行控制,并通過動(dòng)壓反饋對(duì)其進(jìn)行校正,得到了較好的調(diào)速性能。 為了驗(yàn)證液壓控制系統(tǒng)的參數(shù)匹配的合理性和仿真模型的正確性,進(jìn)行了首繩快速更換裝置實(shí)驗(yàn)室試驗(yàn)。試驗(yàn)結(jié)果表明,該液壓控制系統(tǒng)具有較高的安全性能和較好的動(dòng)態(tài)性能,而且仿真曲線與試驗(yàn)曲線基本一致,證明建立的仿真模型是正確的。
[Abstract]:Article 379 of our country's Coal Mine Safety regulations clearly stipulates that the service life of the friction hoist wire rope (that is, the head rope) shall not exceed 2 years. The quick replacement device of the first rope is the key equipment to meet the needs of the quick replacement of the head rope of the coal mine hoist. The performance of the hydraulic control system directly affects the normal operation of the rope changing device, so it is of great significance to study the hydraulic control system of the head rope quick replacement device. In this paper, a hydraulic control system is designed for the quick change of the first rope, which is mainly composed of the hydraulic control system of the anti-running rope device, the hydraulic control system of the locking rope device and the stepping speed regulating system of the stepping rope feeding device. In this paper, the simulation model of electromagnetic relief valve and hydraulic cylinder displacement module of hydraulic control system of anti-running rope device is established under the condition of cordless working condition. The influence of system pressure on the pressure keeping process and releasing process is studied. This paper analyzes the cause of the four cylinders out of sync, matches the rated flow parameters of the pressure relief reversing valve, establishes the load model of the lock rope of the hydraulic cylinder under the condition of rope piercing, and simulates the dynamic performance of the hydraulic system of the rope locking device during the rope locking process. In this paper, the unidirectional sequential valve model and the lock rope load model of the hydraulic control system of the lock rope device are established. The parameters such as pressure and flow rate of the system are matched. In view of the bending phenomenon of the hydraulic hose produced by the hydraulic cylinder out of sync, the throttle hydraulic cylinder is proposed. The dynamic performance of the locking process of the locking hydraulic cylinder was studied by matching the orifice diameter of throttle and the damping hole diameter of the pilot one-way sequential valve. The electro-hydraulic speed regulation system of the stepping rope feeding device is designed. The servo valve is selected as the key component of the speed control system. In order to increase the speed of the rope feeding hydraulic cylinder when it is no load and reduce the throttling loss when the heavy load is fed, The differential connection loop is designed, and the electro-hydraulic speed regulation system is controlled by PID controller, and corrected by dynamic voltage feedback, and the better speed regulation performance is obtained. In order to verify the rationality of the parameter matching of hydraulic control system and the correctness of the simulation model, the laboratory test of the rapid replacement device of the head rope is carried out. The experimental results show that, The hydraulic control system has higher safety performance and better dynamic performance, and the simulation curve is basically consistent with the test curve. It is proved that the established simulation model is correct.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TD532;TH137

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本文編號(hào)：1514133