搜索结果: 1-15 共查到“工学 Roller”相关记录20条 . 查询时间(0.109 秒)
Abrasive Wear Mechanisms of Sand Particles Intruding into ATM Roller-Scraper Tribosystem
Tribosystem Abrasive Wear Mechanism
2011/8/4
The roller-scraper tribosystem of Automatic Teller Machine (ATM) plays an important role in reliable cash requests. However, the abrasive wear of the polymer tribosystem becomes a prominent problem wh...
钢辊外卷式圆捆打捆机设计与试验（Design and Experiment on Round Baler with Revolute Steel Roller）
圆捆打捆机 钢辊外卷式 设计 试验
2010/12/29
设计了由传动系统、牵引装置、捡拾器、喂入机构、成捆室、捆绳机构、液压系统以及卸草器等组成的钢辊外卷式圆捆打捆机，简述了圆捆打捆机的工作原理以及关键部件的结构设计等。对圆捆打捆机的运动参数进行了设计计算，对喂入机构的运动轨迹进行了描述，分析了螺线型成捆室的特点。为检验圆捆打捆机的可靠性和适应性，在不同的作业环境和条件下进行了性能试验和生产考核，结果证明该机结构能够适应各种不同的作业环境。
纵向表面粗糙度对滚子副乏油润滑性能的影响（Effects of Longitudinal Surface Roughness on the Lubricating Performance of Starved Roller EHL Contacts）
滚子副 粗糙度 乏油 润滑性能
2010/12/28
对全膜及乏油条件下纵向粗糙度滚子副弹流润滑问题进行了求解。结果表明，滚子接触副中部与端部的润滑特性不同，由于端部效应的存在，其端部油膜厚度远低于中部。表面粗糙度会引起油膜厚度及压力的波动，在纯滚动条件下，油膜波动的波长等于粗糙度的波长，而幅值大于粗糙度的幅值。表面粗糙度会降低油膜厚度，尤其在乏油润滑条件下。供油膜厚越小，滚子接触副越容易乏油。在一定供油量下，表面粗糙度的幅值越大，波长越小，对滚子副...
Clearance Influence on Dynamic Response of Intermittent Roller Chain Drive
roller chain clearance intermittent motion motion law
2011/8/3
The clearances appear in chain link hinges induced by manufacturing tolerance or wear of components are the most important factor that influences the dynamic performance of the intermittent roller cha...
An investigation of machining efficiency of internal roller burnishing
An investigation machining efficiency internal roller burnishing
2010/8/12
Fine machining process of cylindrical surfaces exposed to the high exploitation loadings has to ensure acceptable surface quality and it’s as longer functionality. In the last decades, selection of th...
The production of mullite used in fast fire kilns as a roller material and testing of its mechanical properties
Mullite Roller f-Al2O3 SiO2 Roller Kilns
2009/10/14
A mullite matrix ceramic was developed for use as the roller material in fast re kilns. Samples of the mullite ceramic were produced from mixtures of domestic -Al2O3 and kaolin clay through conventi...
Properties of Roller Compacted Concretes with Fly Ash
Fly ash RCC Strength Loss on ignition Vibrating slump test
2009/10/13
In this study, brief information on zero slump concrete, which is not in common use in Turkey, is given.Zero slump concrete, also known as roller compacted concrete (RCC), is produced at a very low wa...
圆锥滚子摆动从动件圆锥凸轮的非等径加工 Non-equalization Machining Method for Conical Cam with Oscillating Tapered Roller Follower
圆锥滚子 摆动从动件 圆锥凸轮 3-D展开法
2009/5/18
通过对空间凸轮机构圆锥滚子摆动从动件圆锥凸轮工作过程的分析，指出了常用的平面展开及偏距加工法存在误差。将圆锥滚子摆动从动件圆锥凸轮机构的运动过程进行分解，提出从动件运动轨迹的3-D展开法，并在此基础上提出了一套圆锥滚子摆动从动件圆锥凸轮非等径加工的“仿摆线”加工法，有效地解决了圆锥滚子摆动从动件圆锥凸轮非等径加工的难题。
Estimating cone rotation speeds from roller cone bit vibration
drilling roller cone bit tooth wear diagnosis cone rotation speed
2009/5/8
Real-time diagnosis of bit wear while drilling has been a fundamental interest for drilling engineers. It has been inferred from previous studies that the degree of tooth wear for a roller cone bit ...
Dynamics modeling of roller cone bit axial vibration
drilling roller cone bit axial vibration bit wear dynamics modeling
2009/5/8
It has been reported in previous studies that dominant peaks of a power spectrum for roller cone bit axial vibration moved to higher frequencies as the bit tooth wear progressed. This experimental re...
Compensation of reactive power in the power-supplying system in a roller mixer in laboratory conditions
Power consumption Compensation of reactive power Roller mixers for foundry engineering
2011/3/31
Of particular importance are instantaneous voltage and current levels registered in the three-phase power-supplying systems in roller mixer in laboratory conditions. Recorded data allow the apparent p...
Compensation of reactive power in the power-supplying system in a roller mixer in laboratory conditions
Power consumption Compensation of reactive power Roller mixers for foundry engineering
2011/3/31
Of particular importance are instantaneous voltage and current levels registered in the three-phase power-supplying systems in roller mixer in laboratory conditions. Recorded data allow the apparent p...
Deformation Behavior of Wood by Roller Pressing
wood roller press compression deformation behavior bending property
2009/3/6
We investigated the deformation behavior of wood being pressed perpendicular to the grain and the bending properties of the wood after pressing. Sugi (Cryptomeria japonica D. Don) flat-sawn timber pr...
Liquid Impregnation of Green Wood using a Roller-pressing Method
refractory wood green wood roller press impregnation cyclic compression
2009/3/6
Phenol-formaldehyde resin (PF resin) solution was impregnated by a roller-press into Sugi (Cryptomeria japonica D. Don) sapwood, spruce (Picea spp.) heartwood, and Douglas-fir (Pseudotsuga menziesii F...
Sugi (Cryptomeria japonica D. Don) and balsa (Ochroma lagopus Sw) specimens in the air-dried condition were compressed using a roller press. We measured the frequency and degree of defects and fractur...