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时间:2018-11-05
《液力变矩器性能实验-秦超恒》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、03121202秦超恒1120120669液力变矩器性能实验秦超恒北京理工大学机械与车辆学院903121202秦超恒1120120669液力变矩器性能实验一、实验目的和要求1.学习和掌握液力变矩器外特性和原始特性的实验方法;2.了解液力变矩器外特性和原始特性实验的仪器、设备和使用方法;3.结合《液力传动》课堂学习,增进对液力变矩器的感性认识;4.整理实验报告。二、实验对象、实验仪器与试验台组成1.实验对象:液力变矩器2.实验仪器和设备a)动力装置:用于为液力变矩器实验提供动力b)加载设备:用于为
2、液力变矩器实验加载荷c)转速、转矩传感器:测试液力变矩器泵轮和涡轮转速、转矩d)温度传感器:测试液力变矩器补偿油进口温度和出口温度e)压力传感器:测试补偿油入口和出口油压以及控制油压f)泵站、散热器、热交换器:辅助设备,为系统提供油源和散热三、实验内容调节动力装置,保持泵轮轴的转速稳定。实验过程中对涡轮轴加载,加载到预定的变矩器转速比。每次加载稳定后,同时测得液力变矩器的泵轮和涡轮的转速和转矩,以903121202秦超恒1120120669及进、出口处的油温,油液补偿系统压力。在泵轮转速等于10
3、00,1100,1200,1300,1400,1500,1600,1700,1800r/min条件下测试液力变矩器的外特性和原始特性。液力变矩器工况为:转速比i=0,0.1,0.2,0.3,0.4,0.5,0.6,0.65,0.7,0.75,0.8,0.9,0.95。一、实验步骤1.在实验准备工作完成后,启动动力装置。2.调节动力的转速,将泵轮转速稳定在某一转速。3.用调节加载装置,通过改变加载转矩,使液力变矩器转速比至预定值。4.稳定后同时采集泵轮转速、涡轮转速、泵轮转矩、涡轮转矩、变矩器进口
4、压力、变矩器出口压力、变矩器进口、出口温度。5.利用加载设备加载,按照i从大到小依次测量变矩器其他速比工况。二、实验数据已知变矩器循环圆有效直径为430mm,油液密度为860kg/立方米。原始数据如下:输入转速/rpm输入转矩/Nm输出转速输出转矩入口油液温度出口油液温度入口油液压力/Mpa出口油液压力/Mpa速比i变矩比K效率η泵轮转矩系数λM999.5152.44960.25133.8670.21177.0770.7540.6170.960730.878080.843600.00122999
5、.5152.44960133.8670.21177.0770.7520.6130.960480.878080.843380.00122999.5152.44959.75137.3870.2577.0770.750.610.960230.901190.865350.00122999.5208.97940.5193.7470.67476.8840.7580.6210.940970.927140.872410.00167999.5212.39939.75195.570.67476.8840.7580.
6、620.940220.920480.865460.00170999.75212.39940195.570.71276.7690.760.620.940240.920480.865470.00170999.5301.46899.25283.5771.13776.5760.7360.610.899700.940650.846300.00241999.5301.46899.5283.5771.13776.5760.7420.6110.899950.940650.846530.0024190312120
7、2秦超恒1120120669999.5301.46900285.3371.13776.5760.7440.6130.900450.946490.852260.00241999.5359.7850.5357.5471.44576.2670.750.6290.850930.994010.845830.00287999.5359.7849.75361.0771.44576.2670.7520.6320.850181.003800.853410.00287999.5359.7849.75361.0771
8、.44576.2290.7560.6320.850181.003800.853410.00287999.5400.8180042871.8775.7270.7270.6150.800401.067840.854700.00320999.5400.81799.75426.2372.02475.6110.7340.6150.800151.063440.850910.00320999.5400.81799.75429.7672.44875.5730.7340.6150.800151.072230.85
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