SU1702213A1 - Method of rolling bearings control using torque resistance value - Google Patents

Abstract

The invention relates to the bearing industry and can be used to control rolling bearings according to the moment of resistance to rotation. The goal is to expand the functionality of the method. The controlled bearing rotates at a constant speed at a constant load. The maximum and minimum values of the moment of resistance to rotation are measured. The difference between the measured moments and their mean value is measured. According to the obtained results, the bearing condition is estimated. 1 or 4 tabl,

Description

The invention relates to the bearing industry and can be used to control rolling bearings according to the moment of resistance to rotation.

The aim of the invention is to expand the functionality.

The drawing shows a diagram of an apparatus for carrying out the method.

The device contains a drive shaft 1 for installing the monitored bearing 2, a loading unit 3, a torque converter 4 that is connected to the inputs of the determination and recording unit 5 of the arithmetic mean and the determination unit 6 and recording the difference of extreme values, the outputs of which through units 7 compare with the maximum allowable the values are connected to the corresponding inputs of the meter 8 of monitored parameters, to the output of which the indicator 9 is connected.

The method is carried out as follows.

When the drive shaft 1 rotates, the inner ring of the bearing 2 rotates. The outer ring of the bearing 2 is under the action of the load unit 3 and the torque converter 4 is kept from rotation. , inner ring and rolling elements.

The electrical signal from the output of converter 4 is fed to the input of block 5 for determining and recording the arithmetic mean and input for block 6 for detecting and recording the difference of extreme values of the moments of resistance to rotation recorded in the measurement cycle. The signals from the outputs of blocks 5 and 6 of determination and registration through the blocks 7 of comparison with the maximum permissible values are fed to the corresponding inputs of the meter 8 of monitored parameters. Resg

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The measurement result from the output of block 8 is fed to indicator 9,

An example of determining the quality of bearings of the type 1000094 according to the proposed method. The necessary values of rolling resistance moments determined on the described device are summarized in Table 1.

One of the comparison units 7, which determines the maximum permissible values by the value of the arithmetic mean value of the rolling resistance moment, ensures that the bearings are sorted into three groups: basic, toughened and special toughened in accordance with the table. 2

Another comparison block 7, which determines the maximum permissible values by the difference of extreme values, provides for sorting the bearings also sodium quality groups: high quality, medium quality and low quality in accordance with the table. 3

Depending on the bearing quality assessment program entered into the meter 8 of monitored parameters, the quality of the measured bearing is determined, followed by reflection on the indicator 9. Below is an example of the sorting of bearings (Table 4).

If the main requirement is to reduce friction losses, then preference is given to the bearing with the maximum first digit in the indication cipher,

If the rotation support is required low-noise and rotational accuracy, then preference is given to the bearing with the maximum second digit in the cipher indication,

Claims (1)

The proposed method improves the control accuracy by detecting the non-instability of the moment of resistance to rotation. Claims The method of controlling rolling bearings by torque moment, at which the moment of resistance of a loaded and rotating bearing is measured, and the quality of the rolling surfaces of the bearing, characterized in that, in order to extend the functionality, extreme values of the resistance moment are determined. rotation, their difference and arithmetic mean value are measured, and the quality of rolling surfaces of the bearing is determined from the data obtained Neny this data with corresponding maximum permissible parameters for the particular operating conditions. Table 1 table 2 Difference of extremal valuesM 0.1 0,, 1 №0.0 $, 1 0,, 1, 05 MMJ.1 0.05Ј & MSO, 1, 05 Display code1, 11,21,3 2,12,22,3 3,1 3,23,3 Bearing from table.1 614 9352-8 Table 3 Table