国外文献 > 1.轴承 > 2. 轴承类型与部件 > 滑动轴承
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| 标 题: |
1-D SIMULATION MODEL OF A PROGRESSIVE FLOW CONTROLLER FOR HYDROSTATIC BEARINGS 静压轴承用渐进式流量控制器的1-D仿真模型 |
| 作 者: |
Edler, J. Tic, V Lovrec, D. |
| 关键词: |
Hydraulic [液压] Hydrostatic Bearing [ 静压轴承] Flow Control [ 流量控制] Simulation [ 模拟] |
| 出版年: |
2019 |
| 期刊名: |
International Journal of Simulation Modelling 国际模拟建模期刊 |
| 年卷期: |
2019, vol.18, no.2 |
| 摘 要: |
Hydrostatic bearings in machine tools are used for qualitative highest demands. On the one hand, they are used in precision machines, for example, in grinding machines, to get high precision and the highest quality in the production. On the other hand, they are used in machines with high forces during the production process. Generally hydrostatic bearings are characterised by a good damping behaviour and good stiffness of the bearing, as well as wear resistance and nearly no friction in the bearing (fluid friction), thus, no loss of accuracy over the entire lifetime of the machine tool. A progressive flow control is needed in the bearing to get a nearly constant gap in the hydrostatic bearing, which is independent of the load on the bearing. In our case the progressive flow control works with a piston in combination with a control edge and a mechanical spring. The shape of the control edge is essential to get a nearly constant gap in the hydrostatic bearing. Therefore, a 1-D simulation model of the progressive flow control was developed and implemented in an existing 1-D simulation model of hydrostatic bearings to predict the behaviour of the hydrostatic bearing, for example, in machine tools.
机床中的静液压轴承用于满足最高质量要求。一方面,它们被应用于精密机床(例如磨床),以实现生产过程中的高精度和高品质; 另一方面,它们也用于生产过程中承受较大载荷的设备。通常,静液压轴承具有良好的阻尼性能、较高的刚度,以及优异的耐磨性和几乎无摩擦(流体摩擦),因此在整个机床使用寿命期间不会造成精度损失。为了在静液压轴承中保持几乎恒定的间隙,需要实现渐进式流量控制,而该间隙与轴承所承受的负载无关。在本例中,渐进式流量控制通过活塞结合控制边缘和机械弹簧来实现。控制边缘的形状对于确保静液压轴承内间隙近乎恒定至关重要。因此,开发并实现了一个渐进式流量控制的一维仿真模型,该模型基于现有的静压轴承一维仿真模型,用于预测静压轴承的行为,例如在机床中的应用。 |
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