轴承

The linear threshold speeds of both the rigid symmetrical and single-disk symmetrical viscous-elastic rotor-bearing systems are studied respectively.

研究了刚性对称转子-轴承系统、单圆盘对称粘弹性转子-轴承系统的线性失稳转速。

A Coulomb friction model with high accuracy is proposed so that more accurate equations of motion can be established for the transient response of the single-disk rotor which drops onto the back-up bearing as soon as AMB shuts down.

摘要就磁轴承发生故障时转子坠入备用轴承所産生的非线性瞬态响应，提出了摩擦力的计算模型，从理论上建立了更为精确的运动微分方程。

The domestics for backup roll bearing temperature control system of imported aluminium sheet and foil mill have been carried out.

介绍了铝板轧机支承辊轴承控温系统热电偶补偿导线的国产化；铝箔轧机支承辊轴承控温系统国产化。

Bearing in railway use of the new system and maintenance of the railway goods company bearing oil seal for more than 40 percent market share, ranking the first.

目前在铁路轴承新制及维修的使用中我公司铁路货车轴承油封市场占有率40%以上，位居第一。

The results show screw-down tilting is the basic reason of the problem. When there is an obliquity between the shaft sleeve and bush which is caused by screw-down tilting, the load capacity of the bearing drops suddenly.

计算结果表明，压下倾斜过大会造成轴套与衬套的轴线出现倾斜，进而导致轴承的静压承载能力急剧下降，是造成轴承寿命缩短、连轧机启动频繁失败的根本原因。

Linear shaft, bearing, guide, joint bearing, slide unit, ball screw, machinery parts...

直线轴，轴承，导轨，滚珠丝杠，关节轴承，滑动单元，机床附件等

Shaft Type Linear Guide,Linear Ball Bearing,Shaft ,Oilless Bearing ,Linear Guideway,Ball screw,Coupling,Support unit,Safety Bearing Nut,Luck Nut,Unive...

轴心式滑轨，线性轴承，特殊自润轴承，轴心，线性滑轨，滚珠螺杆，联轴器，螺杆支持座，防松螺帽，锁定螺帽。。。

The statistic analysis is made for the vehicle type,bearings and axle temperature of vehicles with application of the sample data of predicting hot box.

利用预报热轴的样本数据对车辆的车型、轴承、轴温进行了统计分析，提出为了减少多报和误报，应区别对待C64系列、C80型等车辆和2位轴、4位轴的热轴判别数学模型，对能区分的C64系列、C80型等装配SKF轴承的车辆应建立单独的热轴判别数学模型，以提高热轴判别的准确率和兑现率。

The rub-impact between rotor and stator often occurs because the rotor shaft stiffness decreases following the occurrence of the crack in the rotor shaft, and thus the coupling fault with rub-impact and crack is hackneyed fault type. Based on the nonlinear dynamical model of the cracked rotor-bearing system with rub-impact, the stability of the periodic motion and instability way were studied in unbalance-rotating speed plane and rotor/stator clearance- rotating speed plane and crack depth- rotating speed plane, and the main results were validated by the experiment.

转子轴承系统裂纹故障的出现会引起转子系统转静件之间碰摩故障的发生，因此裂纹碰摩耦合故障也是转子系统常见的故障类型，本文在裂纹碰摩耦合故障转子轴承系统的非线性动力学模型基础上，分析了系统在不平衡量-转速、碰摩间隙-转速、裂纹深度-转速等参数域内，周期运动的稳定性及其失稳规律，并用实验验证了主要理论结果。

Currently Kong Qichui, hydraulic riveting machines, metal shavings Press, metal Da Baoji, forging hydraulic hammers used for steaming Kong Qichui head of the hydraulic power, closed a single point of presses, open-presses, More reactive auto forging presses, NC Jianban, bending machines, general Jianban, bending machines, rotary forging riveting machines, bar precision cutting machine, open-book-school and other varieties of products, but also for Automobiles, bicycles, the bearings industry design, manufacturing production lines, has become the domestic Kong Qichui, hydraulic forging hammer, hydraulic riveting machine, forging equipment bearing the production, export base.

目前拥有空气锤、液压铆接机、金属屑压块机、金属打包机、液压模锻锤、用于蒸空气锤改造的液压动力头、闭式单点压力机、开式压力机、多功位自动锻造压力机、数控剪板、折弯机，普通剪板、折弯机，摆辗铆接机、棒料精密剪断机、开卷校平机等多个品种的产品，还可为汽车、自行车、轴承行业设计、制造生产流水线，已形成国内空气锤、液压模锻锤、液压铆接机、轴承锻造设备的生产、出口基地。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。