Large-scale precision bearing axial clearance multifunctional automatic measuring instrument

Abstract

The invention relates to a multifunctional automatic measuring instrument of a large-scale precise bearing axial play, which comprises an electric system (1), a precise pressure gauge (2), an upper pressing sleeve (3), a precise pressure regulating valve (5), a sensor regulating stand (6), a lateral inductance transducer (7), a gauging mandrel (8), a lower pressing sleeve (9), a gauging main spindle and a charger (10), a bearer (11), a fork-lever coupling (12), a Hall component (13), a synchronous motor (14), and a gauging base (15). The invention solves the difficult problem that a large-scale precise bearing axial play is hard for highly precise measurement, a reliable detecting and analyzing data is provided for assembling and employing a bearing, and a measured bearing (4) is multifunctionally and automatically measured, a need of quick test for a bearing user is satisfied, simultaneously, a measuring standard of an axial play is provided for a precise bearing of a non-separable large-scale finished product which is larger than 100mm.

Description

technical field [0001] The invention belongs to the technical field of bearing measurement, in particular to a multifunctional automatic measuring instrument for the axial clearance of large precision bearings. Background technique [0002] In recent years, the development and production of high-precision bearings in China has been gradually strengthened, and the variety and quantity of high-precision bearings are increasing. Various parameters that affect the assembly of bearings began to be strictly controlled. In such a market environment, the measurement of the axial clearance of the bearing has gradually gained the attention of the users of the supporting bearings of the main engine, and gradually used it as an important means of controlling the quality of the bearing. [0003] In order to better ensure the good operation of high-precision host equipment, the standards of some special industries in the country have made strict regulations on the detection of the axial ...

AI Technical Summary

Problems solved by technology

From the actual measurement results, the measurement repeatability is poor, often reaching 10 μm or even more than 20 μm;

[0006] 2. The original traditional structure can only be measured statically

Because of the interference error between the bearing groove and the cage, it is often not possible for all rolling elements to fully reach the ideal limit position

However, although methods such as vibration or simple shaking can be partially improved, the influence of interference errors cannot be completely eliminated;

[0007] 3. The original loading structure adopts a lever structure, which is prone to measurement errors caused by the non-parallel loading of the upper and lower levers.

[0008] 4. The measured value of the instrument is displayed by the torsion spring meter. The determination of the upper and lower measured values ​​and the calculation of the clearance value are completely completed manually. In addition to the large inherent error of the torsion spring meter itself, a larger error is inevitably added. human subjective error;

[0009] 5. Both loading and measurement are manual single-step operations, which are cumbersome, time-consuming, and prone to errors, and users require automatic loading and automatic measurement;

[0010] 6. The data cannot be automatically stored and printed, which does not conform to the trend and characteristics of modern instruments developing towards intelligence

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