Miniature bearing friction torque measuring device

Abstract

The invention relates to the technical field of measuring equipment, in particular to a miniature bearing measuring device, comprising a power mechanism, wherein the output shaft of the power mechanism is connected with the inner ring of a bearing to be tested, the outer ring of the bearing to be tested is connected with a loading ring, the loading ring is provide with a loading mechanism, a forcemeasuring mechanism is arranged on the side of the loading ring, the force measuring mechanism comprises a force applying rod connected to the side of the loading ring at the left end, and the rightend of the force applying rod is connected with a sensor. In the invention, the loading part has a self-aligning function to well ensure pure axial loading without generating an overturning moment with respect to the axis; the position of the sensor increases a homing device of the electromagnet, so that the force sensor can automatically zero, and the problem that it is impossible for self-zeroing or it is too difficult for manual zeroing caused by too sensitive sensor and small range of the sensor; the installation and replacement are convenient and fast, and the loading block can be disassembled and replaced without affecting the test of the test bearing.

Description

technical field [0001] The invention relates to the technical field of measuring equipment, in particular to a miniature bearing measuring device. Background technique [0002] The inertial navigation system is a navigation parameter calculation system based on gyroscopes and accelerometers as sensitive devices. The system establishes a navigation coordinate system based on the output of the gyroscope, and calculates the velocity and position of the carrier in the navigation coordinate system based on the output of the accelerometer. Its advantages are: since it does not rely on any external information and does not radiate energy to the outside, it has good autonomy, concealment and anti-interference performance; it can work all-weather and all-time in the air, on the surface of the earth and even underwater; it can provide location, Data such as speed, heading and attitude angle have good information continuity and low noise; high data update rate, good short-term accuracy...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing bearing testing machine cannot test the friction torque of such miniature bearings as inertial bearings, the present invention provides a friction torque measurement device for inertial navigation bearings, which is easy to install, good in centering, and easy to replace parts. Partial zeroing of the sensor is convenient and fast, with self-aligning function, and the test data is stable and reliable

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