论文部分内容阅读
本文从研究车辆制动装置的性能出发,分析了闸瓦压力随鞲鞴行程、减压量的变化关系,给出了公式,进行了具体计算。本文针对现场在制动方面反映出来的一些问题,提出了如下的基本观点和建议: 1.调整鞲鞴行程与全车闸瓦压力的分配无关; 2.公式P=3.25,-1;P=A/Cr-1和P=A/A+C P_0-1的应用条件及注意事项; 3.实际闸瓦压力与计算闸瓦压力的区别。在分析判定有关问題时,应以计算闸瓦压力为标准; 4.在以GK型制动机为主的情况下,货物列车最大减压量仍定为1.4千克力/厘米~2是不适宜的。它限制了制动装置能力的发挥,脱离了现车实际情况,约束了司机的思想(认为超过1.4千克力/厘米~2的减压是无用的),不利于安全运输。为此,货物列车在施行停车制动时,最大减压量应定为1.8千克力/厘米~2; 5.为了加强管理,《技规》中还应当明确在鞲鞴行程超长时,计算闸瓦压力的核减标准。
Based on the study of the performance of the vehicle brake system, the paper analyzes the relationship between the brake shoe pressure and the stroke and the amount of pressure reduction, gives the formula and carries out the concrete calculation. This paper presents some basic ideas and suggestions as follows: 1) Adjusting 鞲 鞴 travel has nothing to do with the distribution of the entire brake pressure; 2. The formula P = 3.25, -1; P = A / Cr-1 and P = A / A + C P_0-1 application conditions and precautions; 3. The actual brake shoe pressure and brake shoe pressure difference. In the analysis to determine the issue, should be calculated as the standard brake shoe; 4. In the case of GK-based brake, the maximum reduction of goods train is still set at 1.4 kgf / cm ~ 2 is not appropriate of. It limits the ability of the brake device to play, from the actual situation of the car, the driver’s thinking constraints (that more than 1.4 kgf / cm ~ 2 decompression is useless), is not conducive to safe transport. For this reason, the maximum amount of decompression should be set at 1.8 kgf / cm ~ 2 for cargo trains when parking brakes are applied; 5. In order to strengthen management, it should also be clearly stated in the “Technical Regulations” that when the 鞲 鞴 stroke is too long, Brake shoe pressure reduction standards.