Check ring test tool

Abstract

The invention relates to a check ring test tool which comprises a front limiting plate and a rear limiting plate, wherein the front limiting plate and the rear limiting plate are used for being matched with the two axial sides of a check ring, the front limiting plate and the rear limiting plate are arranged in a front-back spaced mode by means of corresponding front and back limiting structures, and a check ring insertion groove allowing the check ring to be inserted is formed between the front limiting plate and the rear limiting plate. At least one of the front limiting plate and the rear limiting plate is provided with a test tool opening which allows a test tool body to be inserted into the check ring insertion groove in the longitudinal direction to clamp or loosen the corresponding check ring. When a check ring test is carried out, the check ring is inserted into the check ring insertion groove in the vertical direction, the test tool is inserted into the check ring insertion groove from the test tool opening, and accordingly the check ring can be clamped or loosened. Meanwhile, the front limiting plate and the rear limiting plate can carry out limiting on the two axial sides of the check ring to prevent the check ring from having large axial deformation and prevent measurement of the radial size of the check ring from being influenced, so that reliability of a check ring test result is improved, and the probability that the check ring breaks during the test is lowered.

Description

technical field [0001] The invention relates to a retaining ring test tool. Background technique [0002] The retaining ring can be divided into the retaining ring for the hole and the retaining ring for the shaft, which are respectively used to install on the shaft and in the hole to limit the axial position of other parts. The national standard GB959.1-86 of the People's Republic of China stipulates the technical conditions of retaining rings, which stipulates the testing requirements for retaining rings, including elastic testing, seam gauge inspection, etc. When performing elastic testing, for the retaining ring for the hole, it is necessary to clamp the retaining ring for the hole with test tools such as positioning pliers to reduce the outer diameter to the set size, and then loosen it for five consecutive times before measuring the outer diameter; for For the shaft retaining ring, it is necessary to use a test tool such as positioning pliers to open the shaft retaini...

AI Technical Summary

Problems solved by technology

In the actual test, it is found that in the process of clamping or opening the retaining ring, the retaining ring often has a large axial displacement, which will lead to the inaccurate measurement of the deformed radial dimension, resulting in inaccurate test results and affecting the test. reliability of results

In addition, the large axial displacement will cause the retaining ring to break, and the fragments will easily hurt the test personnel after jumping out

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