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A Mechanical Device for Immediately Adjusting the Installation Angle of the Impeller

A technology of mechanical device and installation angle, which is applied to the components, mechanical equipment, engine control and other directions of pumping devices for elastic fluids. Improve work efficiency and ensure the effect of adjustment accuracy

Inactive Publication Date: 2017-02-22
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in rotating machines not being able to perform at their optimum performance immediately

Method used

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  • A Mechanical Device for Immediately Adjusting the Installation Angle of the Impeller
  • A Mechanical Device for Immediately Adjusting the Installation Angle of the Impeller
  • A Mechanical Device for Immediately Adjusting the Installation Angle of the Impeller

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Embodiment Construction

[0029] Further description will be given below in conjunction with the embodiments described in the accompanying drawings.

[0030] Such as Figure 1-Figure 3 As shown, a mechanical device for instantly adjusting the installation angle of the impeller (taking the impeller of an axial flow fan as an example) includes a fan casing 1, a rotor motor 2, a rotor motor casing 3, a rotor motor casing bracket 4, a hub 5, Blade 6, adjusting motor casing bracket 7, adjusting motor casing 8, adjusting motor 9, sliding strut 10, prism sleeve 11, prism adjusting shaft 12, connecting shaft 13, screw rod 14, sliding support plate 15, slider 16 , Sliding sleeve 17, blade hinge shaft 18, slide bar 19, pin shaft 20, bearing 21.

[0031] Such as Figure 1-Figure 2 As shown, the rotor motor 2 is installed in the rotor motor casing 3; the rotor motor casing is fixed in the inner cavity of the fan casing 1 through the rotor motor casing bracket 4; one end of the hub 5 is connected with the output ...

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Abstract

The invention relates to a mechanical device for immediately adjusting an installing angle of an impeller. The mechanical device can immediately play optimum performance under the different working conditions and enables a fluid to bi-directionally flow on the premise that a machine is not moved or the impeller is not replaced. According to the technical scheme, the mechanical device for immediately adjusting the installing angle of the impeller comprises a hub installed in a fan housing and coaxial with the fan housing and a plurality of blades evenly distributed on the outer circumferential face of the hub along the circumference and is characterized in that the blades are respectively and rotatably hinged to the outer circumferential face of the hub, an adjusting mechanism drives and controls rotating angles of the blades and comprises prism adjusting shafts capable of moving along the axis of the fan housing and provided with side prisms identical to the blades in number, pin groove block matching structures converting movements of the prism adjusting shafts into rotation of the blades around the hinge axis and an adjusting motor exerting axial thrust on the prism adjusting shafts.

Description

technical field [0001] The invention belongs to the technical field of rotary machine fluid control, in particular to a mechanical device for instantly adjusting the installation angle of an impeller. Background technique [0002] Rotating machinery refers to machinery that mainly relies on rotating actions to complete specific functions, and is widely used in electric power, petrochemical, metallurgy, aerospace and other sectors. Taking the axial flow fan as an example, the general axial flow fan usually adopts high-efficiency twisted airfoil blades; when the airflow flows in along the inlet end of the blade, the airflow is divided into upper and lower streams along the two ends of the blade. The angle of attack is zero or very small (the angle between the airflow direction and the chord of the blade is the angle of attack), and the airflow bypasses the airfoil blades to maintain a stable streamline. When the airflow forms a positive attack angle with the blade inlet, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/36F04D27/00
CPCF04D27/002F04D29/362F05D2270/20F05D2270/62
Inventor 金英子柳杨林培锋
Owner ZHEJIANG SCI-TECH UNIV