全工况下无极绳连续牵引车安全载人速度试验研究
Experimental study on safe transportation speed of continuous tractor with non-polar rope under all working conditions
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摘要: 针对无极绳连续牵引车安全载人速度难于科学界定的问题，在1∶1全工况综合模拟试验场地上，开展了大量实际运人试验，探究了与人身安全密切相关的因素随运行速度的变化规律。研究结果表明：在水平直线、水平转弯（RH=9 m）、垂直转弯（RV=15 m）工况条件下，噪声、纵向振幅、横向振幅随运行速度表现出了不同的规律，且不同工况的安全速度阈值不同；在试验坡度分别为12°、15°、25°工况条件下，制动距离、张紧装置偏移量、紧急制动回弹距离随运行速度呈现出不同的变化规律，且不同工况的临界速度变化较大；通过试验研究与理论分析，获得了无极绳连续牵引车安全合理的载人速度及运行坡度。Abstract: In view of the difficulty of scientifically defining the safe transportation speed of continuous tractor with non-polar rope, the actual carrier test was carried out on the 1∶1 full-scale comprehensive simulation test site, and the factors closely related to personal safety which varies with the running speed were studied.The results show that the safety speed thresholds of noise, longitudinal amplitude and transverse amplitude are different under the condition of horizontal straight line, horizontal turning (RH=9 m) and vertical turning (RV=15 m) s, and the safety speed threshold of different working conditions is different.Under the conditions of 12°, 15° and 25° test slope, braking distance, tensioning device offset and emergency braking rebound distance are different with the running speed, and the critical speed varies greatly in different working conditions.Through the combination of experimental research and theoretical analysis, a safe and reasonable transportation speed and running slope are obtained.
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