The reasons of reduction in engagement clearance between timing gear and big dual idle gear of DF_7 locomotive diesel engine and the probable resulting damages were analysed, and the measures to prevent this fault from occurring were proposed. 针对DF7型机车柴油机正时齿轮与双联大介轮啮合间隙减小这一故障,分析了其产生的原因以及可能造成的危害,并制定了防止该故障发生的措施。
The parameters, such as deviation, idle motion time, and the gap of brake-shoe could be found from the test curve, they are the important factors influencing the safety of the arresting gear and the important items of the performance test of the braking system. 同时在测试曲线中可以得到制动盘的偏摆、空动时间、闸瓦间隙等参数,这些都是影响制动器安全的重要因素,也是制动系统性能测定的重要内容。
Determination of Modification Coefficient of Idle Gear in Ordinary Gear Train 定轴轮系惰轮变位系数的确定
According to the non-backlash meshing basic relation ship and the requirement of equality of addendum reducing coefficients, the paper applies computational methods of computer programming and cut-and-try to determine the modification coefficient of idle gear in ordinary gear train. 本文依据无侧隙啮合基本关系和齿顶降低系数相等的要求,应用计算机编程计算和计算器试凑计算方法,确定定轴轮系惰轮的变位系数。
During the process of idle speed, air-conditioning compressor, power steering gear and automatic transmission changed suddenly, and these disturbance factors make the working-engine s peed fluctuating, instability or even flame-out. 怠速工况时由于汽车空调压缩机、动力转向器、自动变速器等装置的加载是突变的,这些扰动因素打破了发动机原有的稳定运行,出现了较大的转速波动,严重时甚至引起熄火现象。
Engine idle condition is affected by a variety of external torque, which is the main four: air conditioning, power steering, transmission gear and alternator. 发动机在怠速工况下受多种外部负载影响,其中主要的是四种:汽车空调,电动助力转向,变速齿轮和交流发电机。