Development relevance to improve the operational parameters of the support units of machine tools in their design elements is introduced that increase the rigidity of the components, their carrying capacity, damp occurring vibrations in the process, the coefficient of performance (COP), smoothness of motion, positioning accuracy, reducing the wear of their working surfaces and maintain the original accuracy. A number of engineering development [1], [2], aimed at improving the above characteristics of the machine by changing and improving design of reference nodes used in these rails rolling bearings, aerostatic and hydrostatic guides, as well as the use of automatic control systems of its basic parameters, determine its quality. However, in some operating conditions in which errors occur, mainly due to the instability of oil-film thickness (gap) between the mobile and immobile elements of the hydrostatic bearing. For high accuracy requirements it will negatively affect the quality of machined parts and equipment performance. On this basis, it becomes apparent urgency of the problem of automatic stabilization of oil-film thickness (gap) in the IR. To ensure high precision equipment to improve power system hydrostatic bearing units of machine tools. This, in turn, creates the prerequisite for the development of stabilization systems of the gap in the hydrostatic bearing, with the help of which the thickness of oil layer in them would be kept constant even with significant dynamic load on the support.
The article examines the relationship of the kinematics of the deformable surface points with the stresses in the contact zone of deformation and strength rolling clip elastic and plastic surfaces. There is shown the features of deformation of two cylindrical bodies with identical elastic properties of solids and elastic plastic deformation. The features of deformation of the workpiece surface during rolling on the roller surface of the elastic-plastic are determined. A scheme for determining the kinematics of the points of the deformable surface rolling on the cylindrical surface of the roller without slippage are specified. The dependences of the radial and tangential stresses on the front surface of the roller which is resulting voltage changes depending on the half-width of the contact zone at the front of the video shows the main features of the process of elastic-plastic deformation. We present the variation of the efforts of the deformation of the radius and the radius of the roller parts for different values of the depth of penetration and changes in the deformation force on the depth of the introduction of video for different values of the radius of the workpiece.
The article examines the influence of compressive forces on the deformation of the cylindrical roller. We considered the features of deformation of two cylindrical bodies with identical elastic properties and elastic plastic deformation of the deforming element of the solid parts. Duing the process we calculated deformation of the cylindrical deforming element which is located between the two contracting rigid planar faces of it with a light contact and general deformations. It is shown that the relative deformation of the reels when they are loading does not depend much on the diameter, but depends only on the loading force. It’s produced by computer simulation of compression of a cylindrical roller with two absolutely rigid plates using the software like Pro/E, Solidworks and ANSYS. We obtain the results of experimental investigations of the deformation roller during its compression of flat plates with a hardness of HRC = 65. It was revealed that the deformation roller obtained experimentally is almost identical with the calculated values. It is shown that deformation of the roller shall not exceed two percent of its diameter, and in the calculations determining the parameters of the contact zone can not take into account its deformation.
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