空心滚动体的强度分析

本文提出了空心滚动体强度计算方法．讨论了应力分布规律．并给出了最大应力计算公式，为空心滚动体轴承的设计与计算提供了理论依据．     

托辊防输送带跑偏的几种方法

介绍了几种运用托辊纠正皮带跑偏的方法及其工作原理,供纠正皮带跑偏时参考。     

冲击压路机工作轮动力学分析

通过对冲击压路机工作轮的动力学分析,讨论了滚动阻力、牵引力和冲击力的变化规律和影响因素,文中结论可用于指导冲击压路机的设计和使用。     

非晶薄带成型机转辊动平衡等级判据

为控制非晶薄带成型机转辊表面附加径向跳动度 ,运用动力学的观点对转辊不平衡质量引起的振动响应进行了分析计算 ,建立了其动平衡试验的精度的判据 .研究结果表明 ,要使辊面附加跳动度数值不超过要求数值 (2 0μm)的 5 % ,转辊动平衡精度等级不得低于G2 .5级     

软皮辊纺纱工艺的生产实践

本文针对软胶辊纺纱工艺进行了生产实践和分析，为纺织厂的工艺参数优化提供参考依据。     

ANALYSIS AND DESIGN OF LOAD-UNIFORMING MANGLE ROLLERS WITH AXIALLY-STAGGERED CONTACT

It is desirable to get a uniform load distribution for the pressure rollers of the mangle.In thispaper,the load uniforming principle of the axially-staggered pressure rollers and the rules for theroller design have been analysed by the theory of bending of beams.The ratio of maximum tominimum value of the distributed load in the nip being taken as a useful index to describe the uni-formity of the load distribution,the performance of the so-called load-uniforming pressure rollerswith rubber covering,under various operation conditions,has been evaluated.As a result,it isproved that the load-uniforming pressure rollers with axially-staggered contact is a pratically use-ful means of uniformizing the load distribution,which ensures that the mangle will squeeze the ma-terial to be processed uniformly over its whole width under any technological load,and needs onlysome simple regulations.The conclusions obtained in this paper can easily be extended to the pressure rollers with anysupport conditions.     

使用薄橡胶毯包胶辊提高湿压榨脱水效率

根据橡胶毯随压力负荷大小而变形的原理，以薄橡胶毯作为湿纸幅在压区的衬垫材料，使湿纸幅得到均一的压力，从而提高脱水效率，干度提高３％左右。     

Study of Stress and Strain Distributions of First Pass Conventional Spinning Under Different Roller-trace

Based on simplified axisymmetrical forming model, a elasto-plastic FEM simulation system of multi-pass conventional spinning is developed. Taking the typical draw-spinning as the study object, and establishing reasonable mechanics model, research on the first pass of spinning process is carried out with FEM system developed. The distributions of the stress and strain are obtained by three types of roller-trace curves: straight line, involute curves and quadratic curves. The results are as follows: (1) The v...     

RCC Arch Dam Structure on the Taxi River and Water Storage Measure During Construction

IntroductionThe Taxi River Hydraulic Project is located in theShimen Gorge section in the middle section of theTaxi River in Manasi County,Xinjiang UygurAutonomous Region.The gorge is about3 5 0 mlong with a U- shape and is about70 80 m wide atthe bottom.…     

浅谈皮带机自移机尾螺旋滚筒的密封设计

介绍了ZY2700型皮带机自移机尾及螺旋滚筒在实际使用过程中存在的问题,并对螺旋滚筒的密封结构进行了优化设计,使其能得到较好的密封效果,从而保证螺旋滚筒长时间正常使用,自移机尾正常运行。