Vertical rolling bearing equivalent friction coefficient measuring device and method

Abstract

The invention discloses a vertical rolling bearing equivalent friction coefficient measuring device. The vertical rolling bearing equivalent friction coefficient measuring device comprises a machine body, a sliding seat, a mandrel, two bearing pedestals, an annular counterweight part, a rotating speed sensor and a data acquisition / processing / calculation / display device; one bearing pedestal is fixedly connected with the machine body, and the other one is fixedly connected with the sliding seat; the two bearing pedestals are provided with inner cylindrical surfaces matched with the outer rings of tested rolling bearings respectively; the two inner cylindrical surfaces are coaxial; the two ends of the mandrel are provided with shaft shoulders used for mounting the inner rings of the tested rolling bearings respectively; the mandrel is provided with the annular counterweight part; the sliding seat axially and horizontally moves along the inner cylindrical surfaces of the two bearing pedestals under external force driving; the data acquisition / processing / calculation / display device is used for collecting and processing the angular speed signal, monitored by the rotating speed sensor, ofthe mandrel, and calculating the equivalent friction torque and equivalent friction coefficient of an tested rolling bearing and a B tested rolling bearing. The measuring device has the capability ofrapidly and precisely measuring the equivalent friction torque and equivalent friction coefficient of the rolling bearing.

Description

technical field [0001] The invention belongs to the technical field of testing the frictional energy consumption characteristics of rolling bearings, and relates to a device and method for measuring equivalent friction coefficients of horizontal rolling bearings. Background technique [0002] The friction energy consumption during the operation of rolling bearings directly affects the heating, temperature rise and wear of bearings, which in turn affects the performance and life of rolling bearings. The friction energy consumption characteristic of rolling bearing is an inherent characteristic of rolling bearing itself, which reflects the manufacturing quality and cleanliness of rolling bearing to a certain extent. [0003] At this stage, starting friction torque and rolling friction torque are used to evaluate the starting friction energy consumption and rolling friction energy consumption of rolling bearings respectively, and various rolling bearing friction torque measurin...

AI Technical Summary

Problems solved by technology

[0004] Due to the small amplitude of the starting friction torque and rolling friction torque of the rolling bearing under the test conditions, the micro-force or micro-torque sensors used in the existing rolling bearing friction torque measurement devices are obviously insufficient in precision when performing high-precision measurement

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