Device and method for regulating pair of back to back inner and outer spacers of angular contact bearing
An angular contact bearing, back-to-back technology, used in bearing components, shafts and bearings, mechanical equipment, etc., to achieve the effect of simple structure, high reliability and small size
Inactive Publication Date: 2010-10-06
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
[0003] The invention provides a device and method for adjusting a pair of back-to-back installed angular contact bearing inner and outer spacers to solve the problem of precisely controlling the installation pretightening force of the angular contact bearing
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[0016] The specific embodiment of the present invention is described in further detail below:
[0017] See figure 2 , the upper bearing 4, the outer spacer ring 5, the lower bearing 7, are mounted on the bearing seat 8 with the temperature measuring platinum resistance 1 and the heating plate 2, and are connected with the base 13 by the screw 10 through the heat insulating pad 11, and the temperature measuring platinum is installed Calibration of resistance 1 and heating plate 2 Press the upper bearing with calibration counterweight 3-1, the heater 9 is aligned with the gap on the insulation ring 12, and the digital display push-pull gauge 17 is installed on the slide plate 14, and on the base 13 rail connections. The eccentric wheel handle 15 is connected on the base 13 by a pin shaft 16 . When the heating plate controls the temperature of the calibration weight 3-1, the bearing seat and the inner ring of the bearing to 75°C±4°C, the heater controls the temperature of the ...
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The invention discloses a device and a method for regulating a pair of back to back inner and outer spacers of an angular contact bearing. The relationship between axial pretightening force and friction of the spacers is firstly calibrated; the bearing and the outer spacer are arranged on a bearing seat in the calibration process; a balancing weight of the pretightening force presses on the bearing; a digital display type pull and push dynamometer is used for measuring the friction of the outer spacer which corresponds to the pretightening force; then, the inner spacer is added; the balancing weight of the pretightening force with twice of the weight presses on the bearing; the digital display type pull and push dynamometer is used for measuring the friction of the outer spacer; and whether the thicknesses of the inner and the outer spacers are correct is judged by comparing the friction with the calibrated friction. For simulating the temperature of working conditions, the device is provided with a heating device for heating the bearing. The device has the advantages of simple structure, light weight, small volume and high reliability.
Description
technical field [0001] The invention relates to an assembly technology of mechanical components, in particular to a device and a method for adjusting a pair of back-to-back installed inner and outer spacers of angular contact bearings. Background technique [0002] The thickness difference between the inner spacer and the outer spacer directly affects the preload of the angular contact bearing. At present, the method of inspecting the difference in thickness between the inner spacer and the outer spacer of an angular contact bearing is to first press the outer ring or inner ring of the bearing directly with a weight or by hand (the pressure is equivalent to the preload), and then push the outer ring with your fingers. When the spacer or inner spacer feels the same degree of tightness, the difference in thickness between the inner and outer spacers meets the preload requirements. Contents of the invention [0003] The invention provides a device and method for adjusting a ...
Claims
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Inventor 李忠
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI