Measuring device for sealing ring of three-eccentric center butterfly valve

Abstract

The invention relates to a measuring device for a sealing ring of a three-eccentric center butterfly valve. The device is characterized by comprising a fixture body arranged on a vertical lathe, wherein the rotation center of the fixture body is overlapped with the rotation center of the vertical lathe; a positioning body is obliquely arranged on the fixture body; a workpiece is clamped on the positioning body; a measuring rod frame is arranged in the rotation center of the fixture body; a measuring rod is horizontally arranged on the top of the measuring rod frame; the rotation center of the fixture body equally divides an included angle formed between the two sides of the axial section of the machined workpiece; an included angle is formed between the rotation center of the vertical lathe and the vertical center line of the workpiece and is equal to an included angle formed between the rotation center of the vertical lathe and the center line of a butterfly valve installation pipeline; one end of the measuring rod stretches out of the measuring rod frame; and the end part of the stretching end of the measuring rod is provided with a tool setting point of a turning tool of the vertical lathe. The device solves the problem that the measuring error of the sealing ring is large, ensures the actually measured size of the sealing ring, simply and accurately measures the sealing ring, and well ensures a sealing effect.

Description

technical field [0001] The invention relates to a measuring device for a sealing ring of a triple-eccentric butterfly valve, in particular to a device for measuring the size of the major axis (or minor axis) of the ellipse of the sealing ring of a triple-eccentric butterfly valve. Background technique [0002] Anyone familiar with the triple eccentric butterfly valve knows that the sealing ring of the triple eccentric butterfly valve is an ellipse obtained by obliquely truncating a cone on a plane. It is very difficult to measure the dimensions of the long and short axes of the ellipse. The accuracy of direct measurement is very low and the error is very large. , directly affect the quality of the product. It is difficult to guarantee the tightness of the product, which affects the sealing effect. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a measuring device for the sealing ring of ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a measuring device for the sealing ring of a triple eccentric butterfly valve, which solves the problem that the measurement error of the sealing ring is too large, the measurement is simple and accurate, and the sealing effect can be well guaranteed

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