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四轮驱动拖拉机改作负荷车,比相同级别两轮驱动拖拉机作负荷车时的附着性能有很大改善,在相同滑移率下,允许加载的能力提高70%以上。在排气管上安装阻力阀门,又可以进一步增大发动机的制动能力,制动功率可以达到负荷车发动机本身的标定功率。本文根据试验结果及国内外的研究情况,对这种负荷车的附着性能、加装排气阻力阀后制动力增加的原理及影响因素进行了分析和论证,进而指出使用负荷车和排气阻力阀应注意的事项。
Change from four-wheel drive tractor to load wagon, the attachment performance of the same level two-wheel drive tractor as load trolley has been greatly improved. With the same slip ratio, the loading capacity is improved by more than 70%. Install the resistance valve in the exhaust pipe, but also can further increase the engine’s braking capacity, braking power can reach the load car engine’s own calibration power. Based on the test results and the research situation at home and abroad, the paper analyzes and verifies the adhesion performance of this load-bearing vehicle and the principle of increasing the braking force after installing the exhaust resistance valve, and then points out that the use of load-carrying vehicles and exhaust resistance Valve should pay attention to the matter.