Heating system of high-temperature working condition rolling bearing testing machine

Abstract

The invention relates to the technical field of a bearing test, in particular to a heating system of a high-temperature working condition rolling bearing testing machine. The heating system comprises a temperature control subsystem and a temperature executing subsystem. The temperature control subsystem comprises a temperature sensor, a manipulator and a temperature controller, wherein the manipulator is used for controlling energization and outage. The temperature executing subsystem comprises heating devices and a supporting lining. A bearing outer ring of a high-temperature test bearing is located in the supporting lining, a plurality of blind holes which are evenly distributed are drilled in the supporting lining in the circumferential direction, the heating devices are evenly distributed in the holes for heating the supporting lining, and therefore heating for the outer ring of the bearing is achieved. The heating system is compact in structure, and capable of achieving accurate and efficient simulation of the high-temperature bearing under a high-temperature working condition, being matched with a conventional bearing testing machine for use, expanding the testing capacity of the conventional bearing testing machine, and providing a hardware platform for a rolling bearing test under a high-temperature working condition.

Description

technical field [0001] The invention relates to the technical field of bearing testing, in particular to a heating system of a rolling bearing testing machine under high temperature working conditions. Background technique [0002] Bearings with an operating temperature higher than 120°C are called high-temperature bearings. High-temperature bearings are widely used in aerospace, petrochemical, and machinery manufacturing fields. For example, the operating temperature of aero-engine spindle bearings is above 200°C; the operating temperature of high-temperature bearings in the petrochemical industry is 160°C, and some are even as high as 350-400°C. Due to the tempering temperature of the bearing steel, the hardness of each part of the bearing will drop sharply; the viscosity of the lubricating oil will also be greatly affected under high temperature working conditions, making the bearing more prone to failure, which may cause serious economic losses and safety accidents. Bea...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-temperature rolling bearing testing machine heating system capable of automatic temperature control and high precision, aiming to solve the high-temperature environment simulation problem of the bearing testing machine in a new, more accurate and efficient way

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