Eccentricity measuring device for three-eccentric center butterfly valve body

Abstract

An eccentricity measuring device for a three-eccentric butterfly valve body comprises a cross-shaped guide block, a base, a connecting rod and a limiting seat, one end of the cross-shaped guide block is installed in a guide groove I in the top of the base, the other end of the cross-shaped guide block is installed in a guide groove II in one side of the connecting rod, the limiting seat is installed on a positioning spigot in the top of the base, and the other end of the connecting rod is connected with a probe I; and the probe I is located on the center line of the guide groove of the connecting rod, the probes II are symmetrically arranged at the two ends of the sliding base, and the distance between every two probes I and the distance between every two probes II form an isosceles triangle. The beneficial effects of the device are that the device achieves the accurate and rapid measurement of the valve bodies with multiple calibers and multiple specifications, is compact in structure, is high in degree of freedom, is flexible, simple and convenient to operate, and is good in universality.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device for eccentricity of a triple eccentric butterfly valve body. Background technique [0002] For the detection of the actual eccentricity of the three-eccentric butterfly valve after processing, there is a lack of simple, accurate and reliable methods. In the past, the dimensional eccentricity of the valve body relied on the careful operation of the processing personnel, and the angle eccentricity relied on the guarantee of the fixture. At present, the equipment that can detect the eccentricity of the triple eccentric butterfly valve body is a three-coordinate measuring instrument, which reads and displays the coordinate value of the detected point of the valve body through the probe, and obtains the eccentricity of the valve body. However, the actual inspection process for a valve body is very inconvenient. The three-coordinate measuring instrument is a precise inspection e...

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Problems solved by technology

However, the actual inspection process for a valve body is very inconvenient. The three-coordinate measuring instrument is a precise inspection equipment, which requires a special place to be placed and professionals to operate and maintain it. Because the equipment is fixed and cannot be moved, the valve body cannot Nearby detection, because the butterfly valve body has many specifications, heavy weight, and special structure, it is inconvenient to transfer the valve body to be tested to the three-coordinate detection workbench. The three-coordinate measuring instrument takes a long time to detect a valve body, and the detection efficiency is low. The requirements for the professionalism of the inspectors are very high, and it is not suitable for the inspection of batch valve bodies. For larger valve bodies, the size even exceeds the working range of the three-coordinate measuring instrument.

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