Using the method of bearing pre-tightening ascending support stiffness

Improve support stiffness source: by applying the method of bearing preloaded bearing | last updated: - 2020 11 - 10 promotion support stiffness by applying the method of bearing pre-tightening non-standard bearing price using bearing moment method raise support stiffness of the ball bearing or cone roller bearings bearing radial moment method can be used, can be used for short cylindrical roller bearings bearing axial moment method, can significantly improve rigidity of shaft support, at this moment or remove the bearing clearance, or the negative side of the gap. But in the speed ratio is not too high, the standard of heating power, usually also should be transferred to the negative side gap is not big. When release torque, suitable for accurate measuring the deformation condition, pay attention to the low-value links in the deformation, deformation with the ascension of torque load of the discrete system; And in the low-value links, the ascension of deformation with load is linear. Once the deformation load appears linear correlation, and improve torque load immediately available at this time has stable bending rigidity. Since then, non-standard bearing radial stiffness and the axial stiffness has a fixed link, and not dependent on the load. Read this article also browse: non-standard bearing the quality of the shaft driving gear hob differential gear hobbing machining accuracy analysis, main shaft gear precision and fitness movement precision, stability, precision and touch is related to the precision. Hob processing work to control the common normal length and gear diameter guarantee fitness movement precision; By manipulation of the tooth shape error, and base pitch error, to guarantee the stability of work precision; With tooth to manipulate any errors to ensure touch precision. Under a roll teeth to show in production and processing of several types of error, the reason to carry out the analysis: gear axial vibration error, gear axial vibration is refers to in a transmission gear turn category; Probe on the tooth groove or transmission gear; Two sides touch with depth; Large variation of the probe relative to the center line of the drive gear. Also drive gear gear relative to dividing line shaft eccentricity; This type of offset is because at the time of equipment parts; Part two the middle hole and right in the middle of table devices do not overlap or error is very big. Or because of top and top hole making poor; Precise locating surface touch owe good produce offset; So the main gear diameter jump from the above reason analysis to solve. In the general level of gear hobbing machine. End milling cutter with general precision; Only the production and processing a magnitude 8 precision gear. The precision of the transmission shaft gear department requirements for level 877; And hob processing mainly two middle hole and inner hole to do precise positioning standards; So the analysis of gear hobbing error origin; Master the methods of guarantee and development of the machining accuracy is critical.