Research On Trajectory And Measurement Technology Of Rolling Bearing Cage

Rolling bearing cage is an important part, its trajectory and dynamic performance has a direct impact on the rolling bearing rotation accuracy. From the cage trajectory angle measured, analyzed the motion of the components of the relationship between the bearing and the bearing retainer of freedom, the establishment of a cage trajectory equation, and its trajectory into the cage axis three-dimensional trajectory and holding frame end surface normal vector trajectory. Especially in the cage in the axial direction of displacement, considering the interaction of a variety of error for the establishment of high-precision measurements of total displacement relationship under various error conditions constituted. Through computer simulations, the trajectory equation of the holder under certain conditions, were solved, and gives the holder axis orbit three-dimensional simulation diagram and end face normal vector trajectories. After the establishment of the trajectory equation and simulation of the cage in the actual measurement issues that need attention, it made possible the measurement program, a brief analysis arranged under different measurement conditions and sensors. The application of computer graphics theory of three-dimensional movement of the bearing retainer display modeling, and the use of OpenGL language to implement three-dimensional dynamic bearing cage show, with C ++ Builder programming language, to achieve a bearing retainer trajectory of three-dimensional dynamic reconstruction.This paper will remain trajectory frame is divided into two parts, which make the cage centroid track and axial runout unity; keep the axial displacement of the holder of research considered the end surface topography based on holding high-precision measurements of total displacement effect frame, to achieve the separation of axial translation, radial deflection and face shape error; the use of a computer display device, the holder of three-dimensional dynamic trajectory reconstruction, so as to achieve the cage trajectory visual effect; in the set condition simulation, simulation results have some significance for the holder trajectory measurements.