Synchronous transmission mechanism for air inlet guide vanes of axial flow air compressor

Abstract

The invention provides a synchronous transmission mechanism for air inlet guide vanes of an axial flow air compressor. The synchronous transmission mechanism comprises a rotary disc, two stages of rotating rods and guide plates of the two stages of rotating rods. The section of the rotary disc is in an inverted-L shape, the bottom ring of the rotary disc is attached to and arranged on the periphery of a cylinder at the front ends of the air inlet guide vanes in a sleeving mode, and the tail end of a rotating ring is fixedly connected with the front end of the first stage of rotating rod. The tail end of the first stage of rotating rod is connected with the front end of the first stage of guide plate through a rotary pair, and the tail end of the first stage of guide plate is connected with the front end of the second stage of rotating rod through a rotary pair. The tail end of the second stage of rotating rod is connected with the front end of the second stage of guide plate, and the tail end of the second stage of guide plate is connected with the rotating shaft parts of the air inlet guide vanes through a rotary pair. The rotary disc is driven by a guide vane driving unit arranged in the axial flow air compressor to rotate. The synchronous transmission mechanism can be used for a structure small in installation space and large in number of guide vanes, and it is achieved that the whole circle of guide vanes synchronously rotate with high precision in a large range; the guide vanes are pretightened though an elastic pretightening device, the structure can be conveniently adjusted, and the precision of the mechanism can be further improved; a locking mechanism is simple in structure and relatively high in 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

Images