Cam loading type tapered roller bearing testing machine

Abstract

The invention discloses a cam loading type tapered roller bearing testing machine which comprises a KRL adapter, a main machine and a constant-temperature water bath. The main machine comprises a servo motor and a bearing main shaft, a touch screen is installed on the side face of the main machine, the servo motor is fixed to the bearing main shaft through a coupler, and a tapered roller bearing for guaranteeing high-pressure bearing load and high-speed rotation of the bearing main shaft is arranged in the bearing main shaft. The KRL adapter comprises an adapter body, and a tapered roller bearing used for realizing shearing of lubricating oil to be tested is arranged in the adapter body. The special tapered roller bearing testing machine solves the problems of tedious installation, complexoperation, poor force control precision and the like caused by previous four-ball machine modification, improves the reliability and the repeatability of test data, provides test parameter records and ensures the traceability of the data.

Description

technical field [0001] The invention relates to the technical field of testing instruments, in particular to a cam-loaded tapered roller bearing testing machine. Background technique [0002] Using a tapered roller bearing testing machine, under the test conditions similar to the gearbox, the lubricating oil is subjected to the action of mechanical shear stress, causing permanent annual loss, and according to the test lubricating oil before and after the test. Rate to express the annual shear stability of lubricating oil. [0003] The existing tapered roller bearing testing machines are all based on the main machine of the existing four-ball machine and use a special KRL adapter, which causes a series of difficulties in operation and use, such as the difficulty of installing and aligning the KRL adapter The most direct result is that the consistency of the test results is poor and the annual loss is too large. In addition, most of the tapered roller bearing testing machines...

AI Technical Summary

Problems solved by technology

[0003] The existing tapered roller bearing testing machines are all based on the main machine of the existing four-ball machine and use a special KRL adapter, which causes a series of difficulties in operation and use, such as the difficulty of installing and aligning the KRL adapter The most direct result is that the consistency of the test results is poor and the annual loss is too large. In addition, most of the tapered roller bearing testing machines modified by the four-ball machine use weight levers to load During operation, the vibration of the whole machine can easily cause the lever to swing, resulting in unstable force and affecting the test results; the total test time is more than 20 hours, and most of the tapered roller bearing testing machines modified by the four-ball machine do not have The setting and recording of targeted temperature control and bearing capacity control do not have the function of unmanned monitoring, the test has great potential safety hazards, and the traceability of data is poor

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