一种应用于全液压型风力发电机组的液力变速器
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摘要
设计了一种新型的液力变速器,结合了径向柱塞式变量泵、液压马达和液力变矩器的一些优点,将变量泵和变量马达进行有效地简化、变形和集成。缩短了油路长度,减少了截面变化的节流口数量,有效地减少了液压能量的沿程损失。通过调节液压油的排量大小,能够在较大范围内调节转速比变化,并且在极低的转速下也可以正常工作。基于AMESim软件,仿真分析了变速器中单个柱塞结构在各个运动状态下的液力特性,验证了新型变速机构的合理性。
This paper designed a hydraulic transmission model, which combines the advantages of radial piston variable pump, hydraulic motor and hydraulic torque converter, so that variable pump and variable displacement motor can be effectively simplified,deformed and integrated.The length of the oil path is shortened, the number of the orifice of the cross section is reduced, and the loss of the hydraulic energy is effectively reduced.By adjusting the size of the displacement of hydraulic oil, speed ratio can be adjusted in a large range, and this model can work at very low speed.Based on the AMESim software, the hydraulic characteristics of a single piston structure in the transmission are simulated and analyzed,and the rationality of the new transmission mechanism is verified.
This paper designed a hydraulic transmission model, which combines the advantages of radial piston variable pump, hydraulic motor and hydraulic torque converter, so that variable pump and variable displacement motor can be effectively simplified,deformed and integrated.The length of the oil path is shortened, the number of the orifice of the cross section is reduced, and the loss of the hydraulic energy is effectively reduced.By adjusting the size of the displacement of hydraulic oil, speed ratio can be adjusted in a large range, and this model can work at very low speed.Based on the AMESim software, the hydraulic characteristics of a single piston structure in the transmission are simulated and analyzed,and the rationality of the new transmission mechanism is verified.
引文
[1]林勇刚,王贤成,王菁,等.基于液压传动的离网型风力机“变速恒频”控制研究[J].太阳能学报,2014,35(10):1965-1970.
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[6]刘振杰,衣超,徐飞,等.液力变矩器的流量和扭矩的实时监测[J].车辆与动力技术,2016,(3):8-12.
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[8]孙泽刚,肖世德,许明恒,等.高速高压轴向柱塞泵缸体的气穴机理研究[J].机械科学与技术,2015,(1):18-22.
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[10]刘慧君,王栋,等.低速高效垂直轴风力发电机及其特性分析[J].机电工程,2016,(5).
[2]杨贵华.液力传动节能装置[M].北京:化学工业出版社,2015.
[3]韩利坤.基于能量液压传递的风力机“变速恒频”技术研究[D].杭州:浙江大学,2012.
[4]艾超,孔祥东,陈文婷,等.液压型风力发电机组主传动系统稳速控制研究[J].太阳能学报,2014,35(9):1757-1763.
[5]孙勇.1.5MW风力发电机组液控技术研究[D].杭州:浙江大学,2011.
[6]刘振杰,衣超,徐飞,等.液力变矩器的流量和扭矩的实时监测[J].车辆与动力技术,2016,(3):8-12.
[7]赵展,何东升.柱塞的气穴现象与其最高转速的研究[J].机床与液压,2010,38(17):109-110.
[8]孙泽刚,肖世德,许明恒,等.高速高压轴向柱塞泵缸体的气穴机理研究[J].机械科学与技术,2015,(1):18-22.
[9]程传玉.定桨距风力发电机组发电性能提升技术研究[J].机电工程,2016,(1).
[10]刘慧君,王栋,等.低速高效垂直轴风力发电机及其特性分析[J].机电工程,2016,(5).