重载车辆制动阀缓解阻力稳定性研究  

Study on Release Resistance Stability of Heavy-duty Vehicle Brake Valve

作　　者：王刚 王荣胜 何守山 程海青 赵文鑫 WANG Gang;WANG Rongsheng;HE Shoushan;CHENG Haiqing;ZHAO Wenxin(Baotou West Depot,China Railway Hohhot Group Co.,Ltd.,Baotou 014010,China;China Railway Hohhot Group Co.,Ltd.,Hohhot 010050,China)

机构地区：[1]中国铁路呼和浩特局集团有限公司包头西车辆段,内蒙古包头014010 [2]中国铁路呼和浩特局集团有限公司,内蒙古呼和浩特010050

出　　处：《铁道车辆》2025年第2期208-211,共4页Rolling Stock

摘　　要：重载列车制动阀缓解阻力是影响列车纵向冲动的重要参数,各制动阀缓解阻力越趋于一致越好。若各车辆制动阀缓解阻力不一致,易造成列车运行平稳性降低,增加列车纵向冲动,严重时会造成车辆断钩甚至脱轨。为减少此类问题的发生,文章根据铁路货车用120型控制阀缓解阻力的形成原理,分析了影响重载车辆制动阀缓解阻力的主要因素,对制动阀滑阀弹簧的厚度、刚度、角度及滑阀座给油量等进行了研究,并对试验台制动阀试验数据和现车运用考核的试验数据进行了汇总比对,建议滑阀弹簧在不改变材质的条件下增加厚度,修订《铁路货车制动装置检修规则》时增加滑阀与滑阀座间注油量要求,加强制动阀检修清洗质量。The release resistance of brake valves of heavy-haul trains is an important parameter affecting the longitudinal impulse of trains.The more consistent the release resistance of each brake valve tends to be,the better.If the release resistance of the brake valves of each vehicle is inconsistent,it is easy to reduce the running stability of the train,increase the longitudinal impulse of the train,and in severe cases,it will cause the uncoupling of couplers or even derailment.To reduce the occurrence of such problems,according to the formation principle of release resistance of series 120 control valve for railway wagons,this paper analyzes the main factors affecting the release resistance of brake valve of heavy-duty vehicle,studies the thickness,stiffness,angle and oil supply of spool valve spring of brake valve,summarizes and compares the test data of brake valve on test bench and the test data of current vehicle operation,suggests that the thickness of spool valve spring should be increased without changing material,When revising the“Maintenance rules for railway freight car braking devices”,the oil injection requirements for spool valves and spool valve seats were added,and the quality of brake valve maintenance and cleaning was strengthened.

关 键 词：重载车辆 制动阀 缓解阻力 滑阀弹簧 注油量 

分 类 号：U270.35[机械工程—车辆工程]