叶片铰接滚动转子压缩机的运动分析

介绍了新型叶片铰接滚动转子压缩机的结构特点,与传统滚动转子压缩机相比,具有摩擦功耗少,径向泄漏少等优点,具有相当的优势和发展前景.但是,在叶片铰接滚动转子压缩机的试制初期,发现转子及滚动环有易烧与卡死的现象,为此对叶片铰接滚动转子压缩机进行了运动分析.通过运动分析发现这种叶片铰接滚动转子压缩机存在急回运动的特性,是转子和滚动环烧缸与卡死的主要原因.因此,在结论中提出了相应的注意事项和应对策略.     

叶片铰接滚动转子压缩机的润滑系统分析

新型叶片铰接滚动转子压缩机与传统滚动转子压缩机相比,具有结构更紧凑、摩擦功耗少、径向泄漏少等优点.由于压缩机在运转工作过程中各运动部件间的摩擦不可避免,如果润滑系统设置不合理,将会造成很大的摩擦损失和密封失效,甚至会使零部件因磨损而报废.通过实验研究确定了新型叶片铰接滚动转子压缩机的润滑系统.试验结果表明,新型叶片铰接滚动转子压缩机的润滑系统是合理有效的.     

叶片铰接滚动转子压缩机结构特点及工作原理

提出了一种叶片铰接滚动转子压缩机结构型式，并通过与传统结构型式的滚动转子压缩机进行对比，分析了这种压缩机的结构特点，随后阐述了其工作原理，该结构压缩机样机经性能测试，结果基本令人满意。     

低振动低摩擦铰接叶片式旋转压缩机的研究

介绍一种新型铰接叶片式旋转压缩机的结构和工作原理 ,对其运动机构进行了理论分析。研究表明 ,该压缩机比传统的滚动活塞式压缩机具有更低的振动噪声、更小的摩擦损耗以及更少的泄漏损失 ,是一种有实用前景的旋转式压缩机     

滚动转子压缩机寿命试验的事故分析

针对滚动转子压缩机寿命试验发生的事故，进行了解剖分析，从机构和电机两方面找出发生故障的原因，并提出滚动转子式压缩机寿命的改进意见。     

滚动转子式压缩机泵体输入功率的计算

在确立的假设条件下,对叶片、滚套、曲轴等滚动转子式压缩机各关键运动部件进行了动力学分析,得出了压缩机泵体的输入功率表达式。为压缩机设计提供了理论基础。     

基于CFD方法的滚动转子压缩机性能分析

采用专业的运动机械CFD仿真软件Pump Linx对包含压缩腔、气动阀门在内的滚动转子压缩机整机进行了瞬态仿真分析,通过软件内置的转子模块和阀门模块快速实现了压缩机整机的网格划分和动网格设置。通过仿真获得了压缩机流量、温度、COP、压力以及阀门运动情况,并将出口流量和温度与试验结果进行了对比,吻合良好,为滚动转子压缩机的整机性能预测和优化设计提供了依据。     

滚动转子式双缸压缩机滑片与滚子运动仿真分析

介绍了滚动转子式压缩机滑片与滚子的运动及受力分析,并利用ADAMS软件建立滚动转子式双缸压缩机的虚拟样机模型,对滑片和滚子的运动进行仿真分析,得到滑片和滚子的运动特性曲线,为压缩机的优化设计提供了理论依据。     

滚动转子式压缩机的技术特性分析

滚动转子式压缩机在家用空调器中得到了广泛应用。本文对滚动转子式压缩机的技术特性进行了分析，讨论了改进其性能的技术方案，并指出了动转子压缩机的发展方向。     

变频压缩机低频周期性噪声的分析

随着控制技术的发展,应用于空调系统的滚动转子压缩机的运行频率越来越低,甚至能达到1Hz。但随着运行频率降低至30Hz以下时,压缩机会出现周期与压缩机运行频率相同的嗒嗒声,运行频率越低,周期性嗒嗒声越明显。本文采用滤波、时频分析及撞击试验等手段详细分析了周期性嗒嗒声产生的根源,并提出改进措施,有效改善低频哒哒声。     

空压机有限寿命活塞设计

针对采用传统经验方法设计的空压机活塞存在材料浪费、笨重、寿命无法预期等问题,提出了采用有限元设计方法.应用到空压机有限寿命活塞设计当中,实现了空压机活塞材料、结构、寿命的优化设计.主要通过对空压机活塞功能的分析及边界条件的界定,完成活塞外部受力、静应力、热应力以及寿命的计算,并采用误差评估方法对计算结果进行评估,最后对...     

Lubrication characteristics of a rotary compressor used for refrigeration and air-conditioning systems (the influence of alternative refrigerants)

The rolling piston type rotary compressor has been widely used for refrigeration and air-conditioning systems due to its compactness and high-speed characteristics. However, it is necessary to develop alternative refrigerants that can guarantee environmental protection. In addition, advanced refrigerant compressors must be further developed to overcome the compatibility problems inherent in refrigeration and air-conditioning systems. The refrigerant compressor is the most important mechanical component, which determines the performances of refrigeration and air-conditioning systems. Therefore, we theoretically investigated the lubrication characteristics of the rotary compressor currently used in both refrigeration and air-conditioning systems with an alternative refrigerant. In the theoretical investigation, the Runge-Kutta method is used to analyze the behavior of a rolling piston in the rotary compressor. Subsequently, the Newton-Raphson method is used, which provided good performance in the analysis of the elastohydrodynamic lubrication of the line contacts between a rolling piston and a vane in the rotary compressor. The results demonstrate that the alternative refrigerants influence the friction force and the energy loss between the vane and the rolling piston.     

The Influence of the vane on the lubrication characteristics between the vane and the rolling piston of a rotary compressor

The rolling piston type rotary compressor has been widely used for refrigeration and air-conditioning systems due to its compactness and high-speed operation. The present analysis is part of a research program directed toward maximizing the advantages of refrigerant compressors. The study of lubrication characteristics in the critical sliding component is essential for the design of refrigerant compressors. Therefore, theoretical investigation of the lubrication characteristics of a rotary compressor being used for refrigeration and air-conditioning systems was investigated. The Newton-Raphson method was used for a partial elastohydrodynamic lubrication analysis between the vane and the rolling piston of a rotary compressor. The results demonstrated that the vane thickness and the center line position of the vane significantly influenced the friction force and the energy loss between the vane and the rolling piston.     

Lubrication characteristics between the vane and the rolling piston in a rotary compressor used for refrigeration and air-conditioning systems

The rolling piston type-rotary compressor has been widely used for refrigeration and air-conditioning systems due to its compactness and high-speed operation. The present analysis is part of a research program directed toward maximizing the advantages of refrigerant compressors. The study of lubrication characteristics in critical sliding components is essential for the design of refrigerant compressors. Therefore, theoretical investigation of the lubrication characteristics of a rotary compressor used for refrigeration and air-conditioning systems was studied. The Newton-Raphson method was used for the partial elastohydrodynamic lubrication analysis between the vane and the rolling piston of a rotary compressor. The results showed that the rotational speed of a shaft and the discharge pressure significantly influence the friction force and the energy loss between the vane and the rolling piston.     

一种低摩擦低泄漏新型旋转式空调压缩机的设计与分析

针对目前滚动活塞式压缩机存在内部泄漏损失多和运动件摩擦损失大的缺陷,提出一种新型全封闭旋转式空调压缩机,该机采用新颖的减摩技术和密封结构,将叶片、端盖与旋转式的缸套紧固连接在一起并同步旋转,消除了这些部件之间的配合间隙,改善了它们之间的摩擦与泄漏状况。介绍了该类压缩机的工作原理和结构特点,探讨了将其作为房间空调器压缩机的设计思路。与传统滚动活塞式压缩机相比,新型旋转式压缩机在减摩、密封、消振、制造以及装配等方面确有其独特之处。     

Experimental and numerical studies on erosion damage in damping holes on the valve plate of an axial piston pump

Journal of Mechanical Science and Technology - Erosion damage affects the reliability and durability of axial piston pumps. An axial piston pump was tested using endurance life testing method. The...