Axial flow fan with adjustable blades

Abstract

The invention provides an axial flow fan with adjustable blades. The axial flow fan comprises a shell, a motor and a spline, wherein the motor is fixedly connected to the center of the inner side of the shell, and electric push rods are fixedly connected to the left side and the right side of an central axis of the shell; eight blade seats are hinged on the left end surface and the right end surface of the motor in an array distribution manner at the periphery; adjusting supporting seats are axially connected to the inner sides of sliding supporting shafts, and eight blade swinging connectingrods are connected to the peripheries of the outer circle surfaces of the adjusting supporting seats in an array and hinged mode; and the blade swinging connecting rods and the blade seats are connected together in a hinged mode, and blades and the adjusting supporting seats are connected together through blade rotating connecting rods. According to the fan, the installation angle and the inclination angle of the blades are adjusted at the same time, the adjustment range of the air pressure and the adjustment range of the air volume are wider, the adjusting capacity is stronger, meanwhile, adjusting operation is simple and convenient, the fan can adapt to different environment requirements, and higher adaptability is achieved.

Description

Technical field [0001] The invention belongs to the technical field of fan equipment, and more specifically, relates to an axial fan with adjustable blades. Background technique [0002] In metallurgy, petrochemical, electric power, urban rail transit, textile, ship and other fields of national economy and various places, fans often need to be used for ventilation. Fans often need to change the air pressure and air pressure during use. The air volume is to meet the production needs. Generally, the adjustable-blade axial flow fan is used to meet the needs of adjusting the air volume and pressure. [0003] Based on the above and combined with the equipment found in the prior art, the existing adjustable-blade axial fan generally adopts adjusting the installation angle of the blades to adjust the air volume and pressure of the fan during adjustment. The adjustment range is relatively limited, and the adjustment range is relatively limited. When it is large, it cannot meet the needs. ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides an axial flow fan with adjustable blades to solve the problem of adjusting the installation angle of the blades to adjust the air volume and air pressure of the existing axial flow fans with adjustable blades. , the adjustment range is relatively limited, and it cannot meet the needs when the adjustment range is large. At the same time, the existing adjustable axial fans have low wind pressure and are mostly used as blowers. When used as exhaust fans, it is often difficult to meet the requirements.

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