Roundness measuring instrument of large precision bearing ring

Abstract

The invention relates to a roundness measuring instrument of the large precision bearing ring. The roundness measuring instrument comprises an upper base, a lower base, a clamping device, a support foot structure device and a spindle supporting part, wherein the spindle supporting part is arranged between the upper base and the lower base; and the clamping device and the support foot structure device are fixed on the lower base. The invention is characterized in that the spindle supporting part contains a spindle and a plane bearing; the spindle is arranged in the plane bearing; the plane bearing is arranged on the lower base; the upper base is arranged on the plane bearing; the clamping device and the support foot structure device are fixed on the lower base through screws; the lower base is provided with a certain amount of screw holes, thus the roundness measurement of different types of bearing rings can be realized; and the upper base and the lower base adopt a split-type structure, thus facilitating the assambly and disassambly of the devices. The roundness measuring instrument has simple structure, convenient measurement and low production cost and can effectively measure the roundness of the large precision bearing ring.

Description

technical field [0001] The invention relates to a roundness measuring instrument for a precision large bearing ring, which is mainly used for measuring the roundness of the inner and outer rings of a precision large bearing. Background technique [0002] Precision large bearings are widely used in metallurgical and mining machinery, petrochemical machinery, engineering machinery, large motors, shipping transportation, heavy transportation, wind power generation and other industries. At present, in the domestic market, precision large bearings are mainly imported, with high added value. The machining accuracy of the bearing ring directly affects the service life of the bearing. The roundness of the bearing ring is an important factor affecting the quality of the bearing. However, due to the influence of the measuring range of the instrument, ordinary measuring instruments cannot be widely used in precision large bearings. In the process of processing, the price of purchasing...

AI Technical Summary

Problems solved by technology

The machining accuracy of the bearing ring directly affects the service life of the bearing. The roundness of the bearing ring is an important factor affecting the quality of the bearing. However, due to the influence of the measuring range of the instrument, ordinary measuring instruments cannot be widely used in precision large bearings. In the process of processing, the price of purchasing large-scale measuring instruments is high, so the measurement of precision large-scale bearings has become a major problem in the production of precision large-scale bearings

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