重轮

J-50支重轮的断裂失效分析与研制初报

Analysis of fracture of J-50 track roller

J-50支重轮是负载和行驶的重要部件。二十多年来，J-50支重轮断裂失效严重，部分统计断裂失效率一年高达52.7%。

J-50 track roller is a very important part of load bearing and running , in the past twenty years or more , J-50 track roller 's fracture was badly serious , the partial statistics shows that its fracturc reaches to a high degree of 52.7 % .

东方红履带拖拉机支重轮形变机制

Deformation Mechanism of Support Wheels in Dong Fang Hong Crawler Tractor

支重轮热处理工艺方法及其效果对比

Heat treatment process for track rollers and comparison of its effects

拖拉机履带板与支重轮摩擦副的磨损试验

The Experiment on Wear of Sustaining Wheels and Track Board

一种摆动式支重轮三角履带轮系介绍

A kind of swing thrust wheel triangular pedrail system introduction

旋挖钻机履带行走装置支重轮的布置计算

Calculation for Roller Arrangement in Crawler Travel System of Rotary Pile Drill

不是七重轮，他说，是地方。

Not chakras , he said . Places .

拖拉机支重轮磨损机理

The Wear Mechanisms Research of Tractor Supporting Roller

支重轮履带板接触应力的有限元分析

The finite element analysis of contracting stress on supporting roller and crawler board surface

工程机械支重轮的研发及其装配线研发项目转让。

Heavy construction machinery-round development of the assembly line and the transfer of R & D projects .

旋挖钻机履带式行走装置支重轮之间的距离及其数量的多少，尚缺少系统的计算公式。

There are few systematical formulas to calculate the roller number and the distances between rollers in crawler travel system of rotary pile drill .

若因螺栓折损而使相关部件破损及托链轮或支重轮磨偏，将大大增加维修费用。

If impairment of the relevant parts bolt breakage and entrusted sprocket or supporting wheels grinding side , will greatly increase the maintenance costs .

支重轮、托链轮、引导轮均装有密封性能好、寿命长的浮动油封。

Track roller , carrier roller , idler are mounted with long life well sealed Duo-cone floating ring well sealed Duo-cone floating ring seal .

结合常规推土机支重轮半刚性连接的特点，经分析，得出的结论是：使用此种形式的履带板得不偿失。

In association with the semi-rigid connection of track rollers of conventional bulldozers , the analysis concluded that the use of single shoe with high grouser is not worth the candle .

托链轮、支重轮、驱动轮及轨链节等，在长时间的运转过程中，会出现一定程度的磨损。

Entrusted sprocket , supporting wheels , wheel and rail links and so on , in the long running process , there will be a certain degree of wear and tear .

若在部分托链轮和支重轮无法运转的状态下继续使用，则可能导致滚轮磨偏，同时还可能造成轨链节的磨损。

If some care and support sprocket wheels running status can not continue to use , it may cause partial grinding wheel , but also probably caused by the wear track chain .

使间隔阻尼层式支重轮分别处在静止，正常工作，极端工况条件下，并针对这三种工况作有限元力学分析，分析支重轮的应力和应变。

Separately take bogie wheels with spacing-damp layer in static , normal work and extreme working condition , and do finite element analysis of mechanics for the bogie wheels in these three working conditions .

在行走装置设计上，提出采用悬链线计算方法用于履带张紧装置预张力、采用土壤最大压应力计算支重轮的间距两种新的观点。

By using the tension-line calculation method , the interior tension stress can be calculated and , by using max press stress of chosen soil , the distance between track rollers can be found .

听见这熟悉的七层观念，我问他是否指禅坐带他穿越瑜伽所谓体内的神圣七重轮。

Hearing the familiar idea of seven levels , I asked him if he meant that his meditation took him up through the seven sacred chakras of the body , which are discussed in Yoga .

听见这熟悉的“七层”观念，我问他是否指禅坐带他穿越瑜伽所谓体内的神圣七重轮。

Hearing the familiar idea of " seven levels , " I asked him if he meant that his meditation took him up through the seven sacred chakras of the body , which are discussed in Yoga .

通过对支重轮失效形式的分析、支重轮与履带板接触应力的分析计算及磨损试验，提出提高拖拉机支重轮耐磨性的措施及建议。

By analyzing the wear deformation of Supporting roller on crawler , calculating the contract stress on supporting roller and crawler board surface and researching the wearing experiment , the measures and advices about increasing wear resistance of supporting roller were promoted .

结果表明：支重轮由于具有较低的轮面硬度和较大边缘接触应力，因此在较短的工作期间内发生严重的塑变磨损，进而产生变形、失效；

The results show that there exists a kind of plastic deformation wear on the roller within a short working time , which is due to lower hardness and higher stress distribution of the roller surface that has higher stress on the edge and lower stress on the middle .

起重绳轮失效分析

Failure analysis of a crane sheave

有两家疫苗制造厂确信肠套叠的问题可以克服，于是重拾对轮状病毒疫苗的兴趣。

Betting the intussusception problem could be overcome , two vaccine makers renewed their interest in rotavirus .