Speed increasing box for compressor

Abstract

The invention relates to a speed increasing box for a compressor, and the speed increasing box is applied to an experiment table of a transonic speed axial flow compressor. The speed increasing box for the compressor comprises a box body, wherein the box body is internally provided with a two-stage gear transmission structure; the two-stage gear transmission structure comprises a primary input gear shaft, a primary output gear shaft, a secondary input gear shaft, a secondary output gear shaft; the primary output gear shaft is connected with the secondary input gear shaft; the primary output gear shaft and the secondary input gear shaft are positioned on the same main shaft; and the primary input gear shaft and the secondary output gear shaft are positioned at the same side of the main shaft. The speed increasing box for the compressor provided by the invention has the advantages of compact structure, greater speed increasing ratio and reasonable design, and can not generate shock stall and buffeting; and the technical problems in the prior art that the occupation area of the speed increasing box structure is large, the speed revolving of transonic speed input can not be satisfied by the speed increasing ratio, and the shock stall and buffeting can be easily generated are solved.

Description

technical field [0001] The invention relates to a gear speed-up box structure, in particular to a speed-up box applied on a transonic axial-flow compressor test bench. Background technique [0002] As one of the important components of the combustion engine, the compressor has an important influence on the performance of the internal combustion engine. And the design level of the transonic stage of the compressor greatly affects the performance of the compressor. The so-called transonic speed is the speed close to the speed of sound, usually refers to the speed range of 0.8 to 1.2 times the speed of sound. In the transonic range, both subsonic and supersonic regions exist in the flow field. Transonic airflow may occur around compressor blades, aircraft, helicopter rotors, and propellers. It is characterized by the occurrence of shock waves downstream of the local supersonic region, and the separation of airflow due to the mutual interference between the shock waves and th...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a speed-up box for a compressor with a compact structure, a large speed-up ratio, a reasonable design, and no shock wave stall and chattering; it solves the problem that the speed-up box structure in the prior art occupies a large area , the speed-up ratio cannot meet the requirements of the transonic input speed, and the technical problems of shock stall and chattering are likely to occur

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