Measuring rod device for inner-ring raceway of pivoting support

Abstract

The invention provides a measuring rod device for an inner-ring raceway of a pivoting support, which belongs to the technical field of industrial measurement. The device comprises a base, a fixed measuring head, a first self-adaptive floating support, a second self-adaptive floating support, a mobile measuring head and a reading mechanism of a dial indicator, and the device is used for measuring the diameter of the inner-ring outer raceway of the pivoting support. A measuring rod main body is of a variable-section beam structure so as to reduce the mass of the whole machine and further reduce the bending deformation caused by gravity. Measurement reading is realized through the mobile measuring head and the reading mechanism of the dial indicator. In order to improve the situation that steel balls of the measuring heads at the two ends are not aligned with the center of the raceway, the self-adaptive floating support structures at the two ends are adopted. After the measuring rod provided by the invention is applied to production and measurement, a unified measurement method for the inner raceway and the outer raceway of the pivoting support can be realized, and measurement errors caused by the non-unified measurement methods for the inner and the outer raceways and non-unified dimension benchmarks can be eliminated by using a unified measuring rod calibration device.

Description

technical field [0001] The invention belongs to the technical field of industrial measurement, in particular to a measuring rod device for the raceway of the inner ring of a slewing support, which is used for measuring the diameter of the raceway of the inner ring of the slewing support. Background technique [0002] Since the diameter of the raceway of the slewing ring is recessed in the ring, and the surface to be measured is an arc surface, it cannot be directly measured with ordinary measuring tools such as vernier calipers and micrometers. At present, the measurement of the size of the inner raceway of the outer ring mostly uses the measuring rod method, and it has a good application effect. However, when measuring the outer raceway of the inner ring, since the measuring rod needs to span the inner ring of the slewing ring, and the operator cannot hold the middle part of the measuring rod like the inner raceway of the outer ring, but can only hold one side of the measur...

AI Technical Summary

Problems solved by technology

This method has the following problems: the measurement process is too cumbersome and inefficient; the measurement error of the vernier caliper itself is relatively large; the contact and cooperation between the embedded round rods on both sides and the surface of the tested raceway cannot be guaranteed, which affects the accuracy of the measurement results; for the required dimensional accuracy Higher slewing bearing inner ring, this measurement method cannot guarantee the accuracy

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