Bearing flexibility measuring device

Abstract

Provided is a bearing flexibility measuring device. A blowing connector is communicated with a nozzle on a blowing seat, and the blowing seat is matched with a gear which is arranged on an installation plate and connected with a mandrel. A measuring control mechanism is arranged in an air bearing seat in clearance fit mode through an air bearing, the air bearing seat is fixed below the installation plate, the mandrel with the gear arranged at the upper end is arranged in the air bearing in clearance fit mode, a measuring head is fixed at the lower end of the mandrel, the lower end of the mandrel is inserted into an inner ring of a bearing to be tested to drive the bearing to be tested to rotate, and a measuring air connector is connected onto the air bearing seat. The nozzles blows in the rotating tangential direction of the gear, the blown air is completely acted on the gear, and therefore energy consumption is small, use ratio is high and starting torque is large. The air serves as media so that the mandrel is separated from a connection column, and the gear is separated from the air bearing seat, pressure and mechanical friction are not generated between the mandrel and the connection column and the gear and the air bearing seat, outside factor friction force and interference force which affect measuring accuracy of the measuring device are removed, and measuring accuracy is high and accurate. An air source blows to the gear and is not directly contacted with the bearing, requirements for the air source is not high, and goodness of rotating flexibility quality of the bearing is quantized and subjected to unified standard.

Description

technical field [0001] The invention relates to an important component of bearing testing equipment, in particular to a measuring device for testing bearing flexibility. Background technique [0002] Bearings are used in existing mechanical transmission equipment, so bearings are a product with a large quantity and a wide range. To ensure the quality of bearings, it is necessary to measure various technical parameters. The flexibility of bearings is a very important indicator. It is an important test item for bearings. It refers to the flexibility of the rolling body of the bearing and the matching inner and outer ring channels, mainly the roundness and smoothness of the rolling body and the inner and outer ring channels, the radial clearance fit and It is related to the cleanliness of the bearing; the poor rotation flexibility of the bearing has a great impact on noise, vibration and service life. The original manual detection is not only labor-intensive, but the detection ...

AI Technical Summary

Problems solved by technology

[0004] But this patent is to aim the nozzle of the high-pressure gas injection mechanism at the cage to drive the bearing to rotate. The high-pressure gas is directly sprayed on the bearing. The position of the spray is the bearing cage. The magnitude of the moment is different, and the bearing also bears an axial external force, which directly affects the measurement results; due to the diffusion characteristics of the gas, the ultra-miniature bearings will not be able to use this method to ensure the reliability of blowing; in addition, the jet body is directly aligned Bearings, therefore, have particularly high requirements on the air source. They must be dry and clean without moisture. Blow air directly to the bearings to disperse the air flow. If the air source is not good, the bearings are prone to damp and rust, which will affect the quality.

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