范成岩,许树新,程亚兵,孟繁忠.汽车发动机正时链系统行走轨迹计算与试验[J].农业机械学报,2016,47(12):361-366.
Fan Chengyan,Xu Shuxin,Cheng Yabing,Meng Fanzhong.Calculation and Test on Trajectory of Automotive Engine Timing Chain System[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(12):361-366.
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汽车发动机正时链系统行走轨迹计算与试验   [下载全文]
Calculation and Test on Trajectory of Automotive Engine Timing Chain System   [Download Pdf][in English]
投稿时间:2016-05-18  
DOI:10.6041/j.issn.1000-1298.2016.12.045
中文关键词:  汽车发动机  正时链系统  行走轨迹  设计方法  试验
基金项目:国家自然科学基金项目(51275207)
作者单位
范成岩 吉林大学 
许树新 吉林大学 
程亚兵 吉林大学 
孟繁忠 吉林大学 
中文摘要:在已知汽车发动机配气正时机构三轴坐标的基础上,研究了正时链系统几何布局设计及其行走轨迹、约束边界的设计计算方法,依据曲线的内凹量,采用分段圆弧或直线逼近的方式,提出了张紧边和导向边的长度计算准则。通过发动机缸盖反拖系统试验台,在真实模拟正时链系统交变载荷和工作环境的条件下,研究了张紧板在不同转速条件下的横向振动位移的变化规律,以及不同转速条件下的噪声特性变化规律。分析结果表明,所提出的正时链系统行走轨迹计算方法,在保持该系统的适度张紧的前提下,正时链整链磨损伸长与张紧器柱塞探出量之间具有较好的谐应关系,同时,正时链系统在发动机常用转速工况下,张紧边的横向位移波动情况及噪声特性能够满足汽车发动机的动力性能要求。
Fan Chengyan  Xu Shuxin  Cheng Yabing  Meng Fanzhong
Jilin University,Jilin University,Jilin University and Jilin University
Key Words:automotive engine  timing chain system  trajectory  design method  test
Abstract:On the basis of three-axis coordinate (crankshaft coordinate, intake and exhaust camshaft coordinate) of valve timing mechanism, the geometric layout of timing chain, design calculation method of trajectory and constraint boundary are studied. By using the method of piecewise arc or straight line approximation, the length calculation formula is presented according to the curve’s camber of tension edge and guiding edge. Using the cylinder head of anti drag system test bench, the change rules of transverse vibration displacement of tension plate and noise characteristics at different rotating speeds is studied under the condition of simulating real time chain system alternating load and working environment. With this timing chain system walking trajectory calculation method, under the premise of keeping the system proper tensioning, between the timing chain elongation and the amount of plunger out of tension device has better harmonic relationship. At the same time, the timing chain system is at the normal speed of engine, the transverse displacement of tension edge and noise characteristic of timing chain system can meet the requirements of automotive engine’s power performance. The results provide a new method and approach for the design and evaluation of timing chain system of automotive engine. It has important significance to the wide application of the chain transmission in the automobile and other high technology fields.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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