1.SANDSTONE DIAGENESIS IN COAL-BEARING STRATA:A CASE FROM MIDDLE-LOWER JURASSIC IN THE TURPAN-HAMI BASIN
SANDSTONE DIAGENESIS IN COAL-BEARING STRATA:A CASE FROMMIDDLE-LOWER JURASSIC IN THE TURPAN-HAMI BASIN
2.The paper specially discusses electromagnetic characteristic analysis of AMB (Active Magnetic Bearing), structure parameter design, and dynamics of an AMB-rotor system excited by ground motion.
本论文主要讨论了主动电磁轴承(Active Magnetic Bearing,AMB)动力特性的有分析、结构设计及基础运动时电磁轴承—转子系统的动力特性等问题,同时相应地了基于ANSYS的电磁轴承特性有限元分析系统及结构优化系统。
3.Our products are characterized by high precision, low noise,long service life and stable performance,which mainly cover auto bearing,mute motor bearing,deep-groove ball bearing,needle roller bearing.thrust ball bearing,tapered roller bearing and nonstandard bearing.
产品以精度高、噪音低、寿命长、性能稳定为优势;主要生产高品质汽车轴承、静音电机轴承、深沟球轴承、滚针轴承、推力球轴承、圆锥滚子轴承及其他非标轴承。
4.Major products: inner diameter 1-15CM, miniature bearing, heterogeneous type bearing, deep groove ball bearing, needle bearing, ramming bearing and MR bearing.
主要生产:内径1-15cm,微小型、异型、深沟球轴承、滚针轴承、冲压轴承、圆柱滚子轴承、调心滚子轴承及MR类轴承,以及定做各类非标准轴承。
5.LZK slew bearings include four-point contact ball bearing, double row angular contact ball bearing, crossed cylindrical roller bearing ,crossed tapered roller bearing and tri-row assembly cylindrical roller bearing, meet demands for all kinds of rotary tables.
LZK研制生产的转盘轴承有:四点接触球、双排球接触球、交叉圆柱滚子、交叉圆锥滚子、三排圆柱滚子组合五大结构类型,可满足您各种工作主机回转台的使用要求。
6.Luoyang Precision bearing factory has got the ISO 9001:2000 International Quality System Certification, which is specialized in designing, developing, manufacturing and selling the large-sized and medium-sized thin wall bearing (light series bearing), slewing bearing and toroidal roller bearing.
其他辅助经营的产品有推力调心滚子轴承,推力球轴承,深沟球轴承以及鄂式破碎机、反击式破碎机,球磨机等矿山设备,产品广泛用于农机,冶金、矿山、石化、建筑、交通、军工等行业。
7.Based on the tribological principle and the theory of contact mechanics,it is feasible to adopt curvature-changing structure in the Rock-bit journal bearing system.The structure and coupling relationship of curvature-changing journal bearing under the condition without friction have been analyzed and three kinds of sub-form structure configurations,namely,the pseudo-curvature-changing structure,the conformable curvature-changing structure,and the clearance curvature-changing structure,been differentiated according to the contacting features.The shape optimization and pre-running-in regulations of the contact surface of curvature-changing journal bearing under friction condition have been established.The results of Rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre-running-in.
基于摩擦学原理和接触力学理论,提出了可在牙轮钻头滑动轴承中采用变曲率结构.在不考虑摩擦的情况下,就结构设计和配合关系等问题进行了分析讨论,划分了准变曲率、吻合变曲率以及间隙变曲率等3种结构形式;针对考虑摩擦时的变曲率结构,提出了接触形状优化和预磨合的实施方案.钻头轴承试验结果表明,无论是预设计变曲率还是预磨合变曲率,都能改善轴承摩擦副的摩擦学特性,因而值得进一步研究和推广.
8.Self-aligning clutch release bearing is a kind of bearing with stamping encloser and sealers.Perfect hermitically construction can prevent sewage from invading.This bearing a changed from inner revolution into outer revolution and diaphragm spring in the bearing can make it self-align.This bearing can reduce vibration &noise and has long life length,light weight and abundant lubrication.
该类型产品为自调心离合器分离轴承,轴承带冲压外罩,两面带密封圈,能很好的防止污物进入轴承内部,轴承由外圈旋转改为内圈旋转,具有膜片弹簧与轴承自调心的功能,润滑充分,减少振动、降低噪音、重量轻、使用寿命长等特点。
9.The high-pressure metamorphic rocks in northeastern Jiangxi Province include such types of rocks as jadeite-bearing aegirine-augite albite amphibole schist, jadeite-bearing aegirine-augite quartz albitite, aegirine-augite-bearing amphibole quartz albitite, aegirine-augite-bearing albite amphibole schist, winchite quartz albitite, and magnesio-riebeckite quartz albitite.
摘要赣东北高压变质岩包括含硬玉霓辉石钠长角闪片岩、含硬玉霓辉石石英纳长石岩、含霓辉石角长闪石英钠长石岩、含霓辉石钠长角闪片岩、蓝透闪石石英钠长石岩、镁钠闪石石英钠长石岩等岩石类型。
10.In this article, the high speed and high power aerostatic bearing supported spindle has been studied, firstly, the static air bearing is researched, where finite element method is applied and complete parameter three-dimensional entity model is built up, then the pressure distribution of the bearing is analyzed in the cases where its eccentricity is different, and capacity and rigidity of the air bearing is obtained.
本文以新型结构的高速大功率全支承空气静压主轴为研究对象,首先对主轴中的单个空气静压轴承进行研究,采用直接数值模拟有限元方法对空气静压轴承进行全参数的三维实体建模,分析轴承在不同偏心率的情况下气膜上的压力分布,得出不同偏心率下轴承的承载力和刚度。