Accurate high-pressure and high-speed air door adjusting mechanism

Abstract

The invention belongs to the technical field of air door adjustment, and particularly relates to an accurate high-pressure and high-speed air door adjusting mechanism. The adjusting mechanism comprises a small gear A, a small gear B, a large gear ring, blades, a fixing ring, transverse connecting rods, a flange plate, connecting small shafts A and connecting small shafts B. The fixing ring is sleeved with the large gear ring. The small gear A and the small gear B are symmetrically fixed to the outer side of the large gear ring along the diameter. The large gear ring and the flange plate are fixed together. The flange plate is located on the outer wall of the fixing ring. One end of each transverse connecting rod is provided with a through oval hole, and the other end of each transverse connecting rod is fixedly connected with the top end of the corresponding connecting small shaft B. The connecting small shafts B penetrate through the fixing ring, the lower ends of the connecting smallshafts B are fixed to the arc edges of the blades, and the triangular ends of the blades are fixed to the connecting small shafts A. The connecting small shafts A of the blades are fixed to the circle center of the fixing ring, and the circular face of the fixing ring is formed through the blades. The air door adjusting mechanism capable of running in the high-pressure and high-speed states is provided, meanwhile, high-precision adjustment of an air door can be achieved, and it can be guaranteed that the blades do not vibrate after being positioned.

Description

technical field [0001] The invention belongs to the technical field of damper adjustment, and in particular relates to a high-pressure and high-speed damper precision adjustment mechanism. Background technique [0002] In the engineering technology industry, it is often necessary to use fans with adjustable dampers as ventilation equipment. The traditional air door mechanism usually uses a single blade for adjustment to control the opening and closing of the air door. By rotating the blade, the angle of the blade can be adjusted to adjust the air volume. Accuracy, and the working point of the damper drifts, and it is difficult to self-lock. [0003] Another kind of damper adjustment mechanism currently used by various manufacturers is the petal-type leaf-type adjustment door. Compared with the single-blade adjustment door, this kind of adjustment accuracy is much improved, but the damper needs to be adjusted manually by using screws or other components. Positioning, such a...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a high-pressure high-speed damper precise adjustment mechanism, which solves the problem of precise and stable control of the air volume of large induced draft fans, large compressors, steam turbines, blowers and aeroengine dampers

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