本文選題：車用柱塞泵 + 配流副　； 參考：《汽車工程》2017年07期

【摘要】：使用表面形貌儀實(shí)際測(cè)量了配流盤徑向表面輪廓,同時(shí)假設(shè)缸體徑向表面輪廓具有理想型、內(nèi)凹型和內(nèi)凸型3種類型,并使用傾斜方位描述法建立了考慮徑向表面輪廓的油膜厚度模型;結(jié)合柱坐標(biāo)系下穩(wěn)態(tài)潤(rùn)滑控制方程,對(duì)比分析3種徑向表面輪廓對(duì)偶形式配流副的動(dòng)壓力分布及其效果,最后搭建穩(wěn)態(tài)潤(rùn)滑試驗(yàn)臺(tái)進(jìn)行試驗(yàn)驗(yàn)證。試驗(yàn)與仿真結(jié)果表明:與實(shí)測(cè)配流盤配合的理想平整缸體動(dòng)壓生成能力最強(qiáng),但因加工問題無法實(shí)際應(yīng)用,內(nèi)凹型缸體動(dòng)壓能力次之,可應(yīng)用于配流副工程設(shè)計(jì),而內(nèi)凸型缸體生成動(dòng)壓能力最差;內(nèi)凹型缸體-實(shí)測(cè)配流盤對(duì)偶的配流副摩擦因數(shù)符合經(jīng)典Stribeck曲線,其反映潤(rùn)滑狀態(tài)轉(zhuǎn)變的臨界速度隨負(fù)載的增大而升高。
[Abstract]:The radial surface profile of the distribution disk is measured by using the surface topography instrument, and the radial surface profile of the cylinder block is assumed to have three types: ideal type, concave type and convex type. The oil film thickness model considering the radial surface profile is established by using the inclined azimuth description method, and the dynamic pressure distribution and its effect of the three dual radial surface profile matching pairs are compared and analyzed with the steady-state lubrication control equation in the cylindrical coordinate system. Finally, the steady state lubrication test rig is built for test verification. The experimental and simulation results show that the dynamic pressure generation ability of the ideal flat cylinder block matched with the measured flow distributor is the strongest, but it can not be applied to practical application because of the processing problems, and the dynamic pressure capacity of the inner concave cylinder block is the second, which can be applied to the design of the flow distribution unit. However, the dynamic pressure generation ability of convex cylinder block is the worst, and the friction coefficient of the matching pair of concave cylinder block and measured distribution disc is in line with the classical Stribeck curve, and the critical velocity of lubricating state transition increases with the increase of load.
【作者單位】： 北京航天發(fā)射技術(shù)研究所;北京理工大學(xué)車輛傳動(dòng)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(51105031) 國(guó)防基礎(chǔ)創(chuàng)新項(xiàng)目(VTDP3303)資助
【分類號(hào)】：TH322

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本文編號(hào)：2070256