棱杆式油泵结构设计及性能分析
发布时间：2019-07-08 17:58
【摘要】：齿轮泵是一种将机械能转化为液压能的机械装置,它作为容积式液体输送泵被广泛应用于汽车、石油、化工、建筑等各行各业中,与其他类型油泵相比,具有结构简单、重量轻、价格低、便于制造维修等优点。但是由于排量小、困油严重、振动噪声大、径向力不平衡等缺点严重限制了齿轮泵在一些行业的应用。为了解决这些问题,本文提出了一种新型结构的棱杆式油泵,在一定程度上改善了普通外啮合齿轮泵排量小和困油严重的缺点,扩大了应用范围。本文在查阅大量相关文献的基础上,分析了齿轮泵的应用现状,指出了研究棱杆式油泵的重要意义,展开了对棱杆式油泵的基础理论研究。论文一共做了以下几方面的研究: 在研究齿轮啮合规律的基础上,通过综合分析外啮合齿轮泵的工作原理,确定了棱杆式油泵的基本结构。为了方便与普通外啮合齿轮泵做对比从而更好的说明棱杆式油泵的结构优势,论文结合KCB-83.3型齿轮泵的基本尺寸设计了转子和腔体的结构尺寸。运用三维建模软件CATIA建立了棱杆式油泵的三维实体图并进模拟装配和运动仿真,验证了本文所设计的棱杆油泵进出油口位置合理并确保转子工作过程不发生干涉行为。 为了捕捉棱杆式油泵内部流场变化情况,本文对棱杆式油泵进行了流场动态仿真分析。运用计算流体动力学(CFD) Fluent软件的动网格技术,选取合适的计算模型和计算方法,分析了进油过程和排油过程,得到转子不同运转位置瞬态的压力场和速度场的分布情况。分析了棱杆式油泵转子与腔体内壁间隙、转子中心距以及转速对出口流速和流量的影响。经研究发现,在转子与腔体内壁间隙、转子中心距一定的情况下,棱杆式油泵流量与转速呈线性关系;转子与腔体内壁间隙以及转子中心距控制在一定范围内时对流量影响较小,一旦超过这个范围会导致流量下降。 最后,运用ANSYS Workbench软件对棱杆式油泵的转子和同步齿轮进行有限元分析,得出转子和同步齿轮在极限工况下的应力应变情况。
文内图片：
图片说明：外啮合齿轮泵和内啮合齿轮泵工作原理
[Abstract]:the gear pump is a mechanical device for converting mechanical energy into hydraulic energy, And is convenient for manufacturing and maintenance and the like. However, the application of gear pump in some industries is severely restricted because of small displacement, severe oil, large vibration noise and imbalance of radial force. In order to solve these problems, a new type of ribbed oil pump is proposed in this paper. On the basis of consulting a large number of relevant literature, this paper analyzes the application status of the gear pump, and points out the significance of the research of the rib-bar type oil pump, and the basic theory research of the rib-type oil pump is carried out. The paper has made a total of the following aspects: On the basis of studying the meshing law of the gear, the basic structure of the prismatic oil pump is determined by comprehensively analyzing the working principle of the external meshing gear pump. In order to make a better comparison with the common external gear pump, the structure advantage of the prismatic oil pump is better explained. The structure of the rotor and the cavity is designed in combination with the basic dimensions of the KCB-83.3 gear pump. In this paper, the three-dimensional solid diagram of the prismatic oil pump is established by using the three-dimensional modeling software CATIA, and the simulation and assembly and motion simulation are simulated, and the position of the oil inlet and outlet of the ribbed oil pump designed in this paper is reasonable and the interference line does not occur in the working process of the rotor. in ord to capture that change of the internal flow field of the fin type oil pump, the flow field dynamic simulation of the fin type oil pump is carried out in this paper The dynamic grid technology of CFD Fluent software is used to select the appropriate calculation model and calculation method, and the oil inlet process and the oil discharge process are analyzed, and the pressure and velocity fields at different operating positions of the rotor are obtained. In that pap, the clearance between the rotor of the prismatic oil pump and the inner wall of the cavity, the center distance of the rotor and the flow rate and the flow rate of the rotating speed on the outlet are analyzed. The results show that the flow of the edge-rod type oil pump is linear with the rotation speed of the rotor and the inner wall of the cavity, and the clearance between the rotor and the inner wall of the cavity and the distance between the rotor center and the rotor are within a certain range. Smaller, once more than this can result in a flow In the end, the finite element analysis of the rotor and the synchronous gear of the prismatic oil pump is carried out by using the ANSYS Workbench software, and it is concluded that the rotor and the synchronous gear should be under the limit working condition.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH38
本文编号：2511771
文内图片：
图片说明：外啮合齿轮泵和内啮合齿轮泵工作原理
[Abstract]:the gear pump is a mechanical device for converting mechanical energy into hydraulic energy, And is convenient for manufacturing and maintenance and the like. However, the application of gear pump in some industries is severely restricted because of small displacement, severe oil, large vibration noise and imbalance of radial force. In order to solve these problems, a new type of ribbed oil pump is proposed in this paper. On the basis of consulting a large number of relevant literature, this paper analyzes the application status of the gear pump, and points out the significance of the research of the rib-bar type oil pump, and the basic theory research of the rib-type oil pump is carried out. The paper has made a total of the following aspects: On the basis of studying the meshing law of the gear, the basic structure of the prismatic oil pump is determined by comprehensively analyzing the working principle of the external meshing gear pump. In order to make a better comparison with the common external gear pump, the structure advantage of the prismatic oil pump is better explained. The structure of the rotor and the cavity is designed in combination with the basic dimensions of the KCB-83.3 gear pump. In this paper, the three-dimensional solid diagram of the prismatic oil pump is established by using the three-dimensional modeling software CATIA, and the simulation and assembly and motion simulation are simulated, and the position of the oil inlet and outlet of the ribbed oil pump designed in this paper is reasonable and the interference line does not occur in the working process of the rotor. in ord to capture that change of the internal flow field of the fin type oil pump, the flow field dynamic simulation of the fin type oil pump is carried out in this paper The dynamic grid technology of CFD Fluent software is used to select the appropriate calculation model and calculation method, and the oil inlet process and the oil discharge process are analyzed, and the pressure and velocity fields at different operating positions of the rotor are obtained. In that pap, the clearance between the rotor of the prismatic oil pump and the inner wall of the cavity, the center distance of the rotor and the flow rate and the flow rate of the rotating speed on the outlet are analyzed. The results show that the flow of the edge-rod type oil pump is linear with the rotation speed of the rotor and the inner wall of the cavity, and the clearance between the rotor and the inner wall of the cavity and the distance between the rotor center and the rotor are within a certain range. Smaller, once more than this can result in a flow In the end, the finite element analysis of the rotor and the synchronous gear of the prismatic oil pump is carried out by using the ANSYS Workbench software, and it is concluded that the rotor and the synchronous gear should be under the limit working condition.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH38
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