內曲線水壓馬達定子曲線與柱塞副的研究
[Abstract]:Water hydraulic technology has gradually attracted human attention because of its advantages in environmental protection and good flame retardancy. All industrial developed countries in the world have carried out research in water hydraulic system and components, and some products have been applied in practice. The research of sea (light) water hydraulic technology has only begun in China since the 1990s, and the research on water hydraulic components and systems is still in the basic stage. However, some colleges and universities in China, such as Huazhong University of Science and Technology, Zhejiang University, Beijing Institute of Technology, Xi'an Jiaotong University and so on, have made good progress in the research of water hydraulic technology. The kinematic viscosity of sea (light) water is about 1 脳 30 of that of mineral hydraulic oil, the conductivity is 1000 times of that of hydraulic oil, the leakage of water is much larger than that of hydraulic oil, and the electrochemical corrosion is stronger than that of hydraulic oil. Therefore, the use of sea (light) water as the medium of hydraulic transmission is faced with serious wear and corrosion, large leakage, cavitation erosion and so on, which is the reason that restricts the development of water hydraulic technology. With the development of material science, processing manufacturing science and computer simulation, it provides conditions for the research of water hydraulic technology. Water hydraulic axial piston pump, water hydraulic axial plunger motor, water hydraulic vane motor, water hydraulic test system and so on have been widely used in practice. This paper mainly studies the low speed and high torque water hydraulic motor of radial plunger. Before this, the research of water hydraulic motor is mainly in the aspects of axial plunger hydraulic motor and blade motor, so the design of this motor fills in the blank for the research of domestic water hydraulic components. The main contents of this paper are as follows: firstly, the stator curve of the inner curve motor is drawn by Matlab programming from the kinematic point of view, and the important factors affecting the curve are analyzed, and the best curve is selected. On the basis of selecting the curve, the kinematic and force analysis of the plunger group is carried out by using Matlab programming, and the variation law of the contact stress between the roller and the stator with the angle of amplitude is obtained. The theoretical analysis and numerical simulation method (CFD) are used to analyze the leakage of the gap between plunger and cylinder block, and the minimum water film and oil film thickness between roller and stator are analyzed and compared with the theory of elastic dynamic lubrication.
【學位授予單位】:燕山大學
【學位級別】:碩士
【學位授予年份】:2012
【分類號】:TH137.51
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