A method for manufacturing a steel runner automotive wind tunnel nozzle section

Abstract

The invention discloses a manufacturing method of a steel runner automobile wind tunnel nozzle section. The manufacturing method comprises: manufacturing a tire plate type tire frame; manufacturing an upper segment, a lower segment, a left segment, a right Fragment; make horizontal tire frame; combine the upper segment, lower segment, left segment and right segment on the horizontal tire frame to form the rear segment; make the front segment and middle segment; hoist the front segment and the middle segment as a whole and combine them with the rear segment to form a nozzle segment , the front section and the back section are connected through the middle section; the first screw hole is drilled on the front section and the middle section, and the second screw hole is drilled on the middle section and the back section; the nozzle section is disassembled and transported to the destination; the front section, The middle segment, the upper segment, the lower segment, the left segment and the right segment are combined into a nozzle segment, and fasteners are respectively installed in the first screw hole and the second screw hole, and the upper segment, the lower segment, the left segment and the right segment are connected Seam welding. The beneficial effect of the invention is to effectively control the installation accuracy of the wind tunnel steel runner.

Description

technical field [0001] The invention belongs to the field of wind tunnel manufacturing, and in particular relates to a manufacturing method of a steel runner automobile wind tunnel nozzle section. Background technique [0002] The automobile wind tunnel is a pipe used to generate artificial airflow (artificial wind), in which a section of air flow can be created evenly, and the automobile wind tunnel test is carried out in this wind tunnel. The wind tunnel comprehensive laboratory of China Automotive Engineering Research Institute introduced in this article is a real vehicle wind tunnel with a large size. The fan used to generate strong airflow in the wind tunnel of the actual vehicle is very large, with a diameter of up to 9m. The automotive wind tunnel project is complex in technology and high in construction costs. Compared with previous traditional steel structure projects, the requirements are much higher, and there is no corresponding construction experience to learn...

AI Technical Summary

Problems solved by technology

Each segment needs to be divided into small segments, so that the size of each segment can meet the transportation requirements, and the accuracy cannot be guaranteed by separate production

Since the segmented construction method is segmented manufacturing, the main size of the port assembly can be controlled at most after the segments are closed, and it cannot be guaranteed that all the screw holes of the flange correspond to each other.

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