Rotator, vortex flowmeter and processing method

Abstract

The invention discloses a rotator,a vortex flowmeter and a processing method. The rotator includes a shaft core and multiple blades, wherein the multiple blades are uniformly assembled on an outer surface of the shaft core, the blades are spirally arranged around a mandrel, and the vortex flowmeter includes the rotator mounted at an inlet. The invention further discloses a processing method of therotator. The rotator is advantaged in that the shaft core and the blades are assembled, the vortex flowmeter equipped with the rotator can guarantee the use precision requirement of the flowmeter under the same flow range, through a separate processing method of the shaft core and the blades, the production period of the flowmeter is greatly reduced, and production efficiency is substantially improved.

Description

technical field [0001] The invention relates to a part used for a vortex flowmeter, and a processing method for the vortex flowmeter and a spinner, in particular to a spinner, a vortex flowmeter, and a processing method. Background technique [0002] The traditional vortex flowmeter spinner mostly uses a whole aluminum alloy bar. Taking advantage of the easy-processing characteristics of aluminum alloy, the CNC four-axis machining center mills out the blade and mandrel as a whole in the bar. The shape after processing is as figure 1 As shown, although this method of integral milling using aluminum alloy materials is easy to obtain the required part shape and smaller blade lead, but because the entire bar is used, it is necessary to use cylindrical milling to process the blade. The knife removes all material between the blades. Due to the short lead of the helical blade, the length processed by the fourth axis of the machine tool for one rotation is relatively short, so tha...

AI Technical Summary

Problems solved by technology

Due to the short lead of the helical blade, the length processed by the fourth axis of the machine tool for one rotation is relatively short, so that the processing takes longer, resulting in low processing efficiency, and only 2 can be processed per working day (8 hours). finished product

At the same time, the anti-corrosion ability of the aluminum alloy material is limited. When measuring highly corrosive fluids, the spinner will fail due to corrosion, resulting in a reduction in the measurement accuracy and service life of the flowmeter.

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