本文選題：水液壓馬達(dá) + 定子曲線��； 參考：《燕山大學(xué)》2014年博士論文

【摘要】：近年來，隨著新型材料的出現(xiàn)和加工技術(shù)的進(jìn)步，水液壓傳動技術(shù)得到了很大的發(fā)展。作為水液壓傳動系統(tǒng)中的能量轉(zhuǎn)換裝置和執(zhí)行裝置，由于水液壓馬達(dá)在水液壓系統(tǒng)中的重要作用，成為學(xué)者們研究的熱點(diǎn)和重點(diǎn)。目前，國內(nèi)外在水液壓馬達(dá)方面的研究主要集中在水液壓軸向柱塞馬達(dá)和水液壓葉片馬達(dá)上，，對于低速大扭矩水液壓馬達(dá)的研究很少。在一些空間受到限制、需要大扭矩和變速箱不便于安裝的場合，低速大扭矩馬達(dá)就顯得更加重要。開展低速大扭矩水液壓馬達(dá)特性及其關(guān)鍵技術(shù)研究具有重要的理論意義和實(shí)際應(yīng)用價(jià)值。因此，本文以多作用內(nèi)曲線式低速大扭矩水液壓馬達(dá)為研究對象，采用理論分析和試驗(yàn)研究的方法，從水液壓馬達(dá)各關(guān)鍵摩擦副的間隙、材料的選擇與摩擦磨損特性入手，探索解決以水為傳動介質(zhì)的低速大扭矩液壓馬達(dá)的關(guān)鍵技術(shù)問題，為其實(shí)際應(yīng)用奠定基礎(chǔ)。 首先，運(yùn)用運(yùn)動學(xué)及動力學(xué)理論對馬達(dá)定子的內(nèi)曲線進(jìn)行計(jì)算與分析，尋找具有沖擊小、接觸應(yīng)力值低和運(yùn)動平穩(wěn)等性能的定子曲線；基于溫升與壓降的關(guān)系、粘溫方程、粘壓方程和力平衡方程及流量方程，對柱塞副在低速、高速和同心及偏心時(shí)的靜態(tài)性能、動態(tài)性能、功率損失、水膜厚度以及泄漏流量進(jìn)行研究，分析水的粘度變化對柱塞副泄漏流量的影響，水膜厚度對柱塞副性能的影響，并以柱塞副總功率損失最小設(shè)計(jì)柱塞副的結(jié)構(gòu)。 其次，基于靜壓支承原理對配流體的工作特性進(jìn)行計(jì)算與分析，尋找適合于配流體與轉(zhuǎn)子的間隙；為了保證水液壓馬達(dá)的容積效率，基于壓力流量方程，詳細(xì)分析不同間隙、溫度和轉(zhuǎn)速對水液壓馬達(dá)配流性能的影響；同時(shí)對配流體的止推特性進(jìn)行研究，保證配流體轉(zhuǎn)子端面的剩余壓緊力滿足水液壓傳動中對偶摩擦副剩余壓緊力的設(shè)計(jì)要求。 再次，基于材料學(xué)和摩擦磨損理論對不同配副材料的摩擦磨損性能進(jìn)行詳細(xì)的試驗(yàn)研究，以對偶副間的摩擦系數(shù)、海水的溫升、材料表面磨損后的形貌、磨損量、磨損深度等作為評價(jià)指標(biāo)，尋找適合于低速大扭矩水液壓馬達(dá)的各對偶運(yùn)動副之間的配對材料。 最后，基于上述研究設(shè)計(jì)加工水液壓馬達(dá)物理樣機(jī)，并對樣機(jī)的性能進(jìn)行空載及加載試驗(yàn)測試，驗(yàn)證所研制的低速大扭矩水液壓馬達(dá)在設(shè)計(jì)理論、設(shè)計(jì)方法、結(jié)構(gòu)及材料選擇上是否正確可行。
[Abstract]:In recent years, with the emergence of new materials and the progress of processing technology, water hydraulic transmission technology has been greatly developed.As the energy conversion device and actuating device in the water hydraulic transmission system, because of the important role of the water hydraulic motor in the water hydraulic system, it has become the hot spot and the focal point of the scholars' research.At present, the research of water hydraulic motor at home and abroad is mainly focused on water hydraulic axial piston motor and water hydraulic vane motor.Low speed and large torque motors are even more important when space is limited and the need for large torque and gearbox is not easy to install.It is of great theoretical significance and practical value to study the characteristics and key technologies of low speed and high torque hydraulic motors.Therefore, this paper takes the multi-action curve type low-speed and high-torque hydraulic motor as the research object, using the method of theoretical analysis and experimental research, starting with the clearance of the key friction pairs, the selection of materials and the friction and wear characteristics of the hydraulic motor.The key technical problems of low speed and high torque hydraulic motor with water as transmission medium are explored and solved, which lays a foundation for its practical application.Firstly, the inner curve of motor stator is calculated and analyzed by using kinematics and dynamics theory, and the stator curve with low impact, low contact stress and steady motion is found, based on the relation between temperature rise and pressure drop, the viscous temperature equation is obtained.The static performance, dynamic performance, power loss, water film thickness and leakage flow rate of the plunger pair at low speed, high speed, concentric and eccentricity are studied by viscous pressure equation, force balance equation and flow equation.The influence of water viscosity on the leakage flow of plunger pair and the effect of water film thickness on the performance of plunger pair are analyzed. The structure of plunger pair is designed with the minimum loss of total power of plunger.Secondly, based on the principle of hydrostatic support, the working characteristics of fluid distribution are calculated and analyzed to find the suitable gap between fluid distribution and rotor. In order to ensure the volumetric efficiency of hydraulic motor, different gaps are analyzed in detail based on the pressure flow equation.The influence of temperature and rotation speed on the flow distribution performance of the hydraulic motor and the thrust characteristics of the fluid distribution are studied to ensure that the residual compression force on the end face of the rotor can meet the design requirements of the dual friction pair in the water hydraulic transmission.Thirdly, based on the theory of materials and friction and wear, the friction and wear properties of different pair materials are studied in detail. The friction coefficient between pairs, the temperature rise of seawater, the morphology and wear amount of materials after wear are studied.The wear depth is used as the evaluation index to search for the matching materials between the pairs of the two pairs of hydraulic motors with low speed and high torque.Finally, based on the above research, the physical prototype of the hydraulic motor is designed and machined, and the performance of the prototype is tested by no-load and loading test, which verifies the design theory and design method of the low-speed and high-torque hydraulic motor.Structure and material selection is correct and feasible.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TH137.51

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊友勝;朱玉泉;羅小輝;;正排量泵噴水推進(jìn)技術(shù)[J];船舶工程;2011年05期

2 張志丹;徐娟;孫克原;寧沖沖;吳銀財(cái);崔益華;楊文光;陳佩民;靳予;;聚醚醚酮復(fù)合材料耐磨性能的研究進(jìn)展[J];玻璃鋼/復(fù)合材料;2013年01期

3 楊立潔;聶松林;張小軍;張安慶;趙俊波;;全水潤滑的斜盤式水液壓柱塞馬達(dá)的試驗(yàn)研究[J];北京工業(yè)大學(xué)學(xué)報(bào);2013年07期

4 唐向陽,劉劍雄,董為民,袁子榮;純水液壓齒輪泵的研究[J];機(jī)床與液壓;2002年05期

5 羅驥 ,蔡盈 ,吳盛林 ,袁子榮 ,王強(qiáng);內(nèi)嚙合齒輪泵油/水介質(zhì)對比試驗(yàn)與研究[J];機(jī)床與液壓;2003年02期

6 袁子榮,吳張永,王強(qiáng),羅t

本文編號：1755028