电传动矿用自卸车电液制动联合仿真分析  

Combined Simulation and Analysis of Electro-hydraulic Brake for Electrified Mining Dump Trucks

作　　者：周成佳 倪文波[1] 罗恒贤 

机构地区：[1]西南交通大学机械工程学院 [2]广州电力机车有限公司

出　　处：《工程机械》2018年第10期40-48,共9页Construction Machinery and Equipment

摘　　要：充分利用电制动是电传动矿用自卸车的基本要求。以某150 t电传动矿用自卸车的制动系统作为研究对象,分析其电液制动力的特点。借鉴动车组电制动优先的策略,提出一种新的电传动矿用自卸车电液联合制动力分配策略,在制动力分配上优先使用电制动,在电制动力不足时开启液压制动。基于AMES im建立了电传动矿用自卸车制动力分配模型,分析不同制动工况下,制动力分配对制动距离和制动时间的影响。仿真结果表明提出的电制动力优先的电液制动力分配策略可以充分利用车辆电制动力,减少液压制动的使用,减少制动闸片的磨耗。It is a basic requirement for the electric drive mining dumpers to adopt an electric brake. Therefore, a 150 t electric driven mining dumper with its brake system has been taken as an object for study to analyze its features of electro-hydraulic braking force. When referring to motor vehicle combination on the railway where an electric brake in the train can take a first priority to apply thereby to put force a tactic to distribute the combined braking force of electro-hydraulics in an electrified mining dumper where the electric brake should be the first to share the braking force distribution and to apply, whereas to start the hydraulic brake should the electric braking force be insufficient. Therefore, it has on the basis of AMESim to build up a model of the braking force distribution so as to analyze such a distribution's effects on the braking distance and to the braking time. The simulation results show that the tactic so suggested can fully utilize the dumper's electric braking force while minimizing usage of the hydraulic brake,thus decreasing wear at the braking disc.

关 键 词：电液制动 制动力 制动距离 

分 类 号：U469.4[机械工程—车辆工程] TD63[交通运输工程—载运工具运用工程]