A simple test device for the sealing performance and friction state of the dynamic sealing pair on the end face

Abstract

A simple test device for the sealing performance and friction state of dynamic seal pairs on the end face. The inner metal sliding ring and the outer metal sliding ring also include the lower flange, the cross section of the lower flange is a "convex" shape structure, and the outer peripheral surface of the upper part of the lower flange is assembled to the mounting hole of the upper flange through an angular contact ball bearing The upper surface of the inner and lower flanges is provided with a groove, and an engineering plastic ring is embedded in the groove, and the engineering plastic ring is positioned by a pin shaft. The engineering plastic ring corresponds to the inner metal sliding ring and the outer metal sliding ring, and forms a sealed cavity , the sealed cavity is filled with pressure liquid; a stud is installed in the middle of the lower flange, an annular pressure sensor is installed on the top of the stud, a torque wrench joint is installed at the bottom of the stud, and a force measuring torque wrench is installed on the torque wrench joint , high test efficiency.

Description

technical field [0001] The invention relates to the technical field of underwater dynamic sealing, in particular to a simple device for testing the sealing performance and friction state of a dynamic sealing pair on an end face. Background technique [0002] For some underwater equipment with special needs, such as high-performance underwater electric manipulator joints and humanoid human-driven manipulator joints, it is necessary to completely isolate the cavity medium inside the rotating pair from the outside world, and at the same time, the rotating pair has good sealing performance, The friction torque is small and the working efficiency is high. The selection of the sealing pair needs to take into account both the sealing performance and the friction performance. In the existing technology, the traditional test method usually designs two sets of test tools to test the two performances separately, which is inefficient and cannot be fully verified. The mutual restriction ...

AI Technical Summary

Problems solved by technology

[0002] For some underwater equipment with special needs, such as high-performance underwater electric manipulator joints and humanoid human-driven manipulator joints, it is necessary to completely isolate the cavity medium inside the rotating pair from the outside world, and at the same time, the rotating pair has good sealing performance, The friction torque is small and the working efficiency is high. The selection of the sealing pair needs to take into account both the sealing performance and the friction performance. In the existing technology, the traditional test method usually designs two sets of test tools to test the two performances separately, which is inefficient and cannot be fully verified. Mutual restriction relationship between sealing performance and friction performance of dynamic sealing pair

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