Synchronous Transmission Mechanism of Inlet Guide Vane of Axial Flow Compressor

Abstract

The invention provides a synchronous transmission mechanism for the inlet guide vanes of an axial flow compressor, which includes a rotary disc, two-stage rotary rods and guide plates. On the periphery of the cylinder body at the front end of the guide vane, the end of the rotating circle is fixedly connected to the front end of the first-stage rotary rod; the end of the first-stage rotary rod is connected to the front end of the first-stage guide plate through a rotary pair, and the end of the first-stage guide plate is connected to the second stage through a rotary pair The front end of the rotary rod; the end of the second-stage rotary rod is fixedly connected to the front end of the second-stage guide plate, and the end of the second-stage guide plate is connected to the rotating shaft of the intake guide vane through a rotary pair; the rotary disc is driven by the guide vane set in the axial flow compressor driven by the unit to rotate. The present invention can be used in a structure with a small installation space and a large number of guide vanes; it realizes the high-precision and large-scale synchronous rotation of the guide vanes in the whole ring; the guide vanes are pre-tightened through the elastic pre-tightening device, which is convenient for structural adjustment, and can further Improve the precision of the mechanism; the locking device has a simple structure and relatively high precision.

Description

technical field [0001] The patent of the present invention relates to an axial flow compressor, in particular to a synchronous steering transmission mechanism for the inlet guide vane of the axial flow compressor. Background technique [0002] This product is mainly developed for the steering adjustment of the inlet guide vane of the axial flow compressor. Due to the high speed and pressure ratio of the axial flow compressor, the inlet adjustment mechanism has a great influence on the aerodynamic performance of the whole machine, so it is required to have a compact structure and high adjustment efficiency. high. And require the whole circle of guide vanes to rotate synchronously. Conventional rotation structures mainly include two methods: [0003] 1. Gear ring type rotating mechanism (such as figure 1 shown): This type of structure is often used in air compressors. A gear is installed on the top of each guide vane, and the guide is realized by the transmission of the ge...

AI Technical Summary

Problems solved by technology

This type of guide vane steering mechanism realizes angle adjustment through the relative rotation of the inner and outer rings, and is suitable for radial flow units, but due to the complex structure and large size, it is not suitable for axial flow units with small installation space and a large number of guide vanes. unit

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