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1.西南交通大学 牵引动力国家重点实验室,四川 成都 610031
2.宝鸡中车时代工程机械有限公司 技术研发中心,陕西 宝鸡;721003
黄志辉(1966—),男,博士,研究员,主要研究方向为铁道机车车辆结构设计与理论、结构强度分析; E-mail: hzh_95@163.com
纸质出版日期:2022-11-10,
收稿日期:2021-02-26,
修回日期:2021-04-06,
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LEI Yanan, HUANG Zhihui, HU Feifei, et al. Analysis on the selection of brake shoe and wheel for an engineering train from the perspective of braking safety[J]. Electric drive for locomotives, 2022,(6):67-73.
雷亚南, 黄志辉, 胡飞飞, 等. 基于制动安全的某工程车闸瓦与车轮选型分析[J]. 机车电传动, 2022,(6):67-73. DOI: 10.13890/j.issn.1000-128X.2022.06.010.
LEI Yanan, HUANG Zhihui, HU Feifei, et al. Analysis on the selection of brake shoe and wheel for an engineering train from the perspective of braking safety[J]. Electric drive for locomotives, 2022,(6):67-73. DOI: 10.13890/j.issn.1000-128X.2022.06.010.
针对最高运行速度160 km/h、轴重21 t的工程车,从制动距离限值、轮轨黏着限度、车轮温度限值、车轮强度要求这4方面进行分析,确定了闸瓦类型、车轮单双侧制动型式和车轮轮径,并校核了选型方案中磨耗到限车轮在2种制动工况下受到热载荷与机械载荷共同作用时的强度。计算结果表明,制动初速160 km/h、轮径915 mm的工程车采用M型粉末冶金闸瓦、车轮双侧制动满足紧急制动距离和不滑行的条件,并且车轮踏面最高温度不高于使用要求的极限温度,同时磨耗到限车轮在2种制动工况下的最大应力满足强度要求。
For an engineering train with maximum running speed up to 160 km/h and axle load of 21 t
the brake shoe type
single and double side braking type and wheel diameter were confirmed by analysis in four aspects of braking distance limit
wheel-rail adhesion limit
wheel temperature limit and wheel strength requirement
and the strength of the wheels with the maximum wear was checked under the combined action of thermal load and mechanical load in two braking conditions under the proposed selection scheme. According to the results
for the engineering train with an initial speed at braking application of 160 km/h and 915 mm wheel diameter
the wheel configuration of the M-type powder metallurgy brake shoe and wheel clasp braking can not only meet the requirements of emergency braking distance and no sliding
but also maintain the maximum temperature of wheel tread less than the temperature limit required for service
and exert the maximum stress of the wheels with the maximum wear under the two braking conditions meeting the strength requirements.
有限元制动距离轮轨黏着车轮温度强度
finite elementbraking distancewheel-rail adhesionwheel temperaturestrength
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