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fan

A technology for fans and angle adjusters, which is applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, machines/engines, etc. problems, to achieve the effect of high angle adjustment accuracy, simple adjustment, and convenient disassembly and assembly.

Active Publication Date: 2016-08-17
SUZHOU DFL AIR CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Normally, the angle between the blades and the air supply direction is fixed, and the air volume can only be changed by changing the speed of the motor, but the span of the motor speed from one gear to another is too large to Realize the fine adjustment of the air supply volume, especially in industrial production, when the air supply volume requirements are relatively fine, it cannot meet the requirements of industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] There are 10 angle adjusters 3, and the angle adjustment teeth 311 of each angle adjuster 3 are 36. When the angle adjustment teeth 311 are in the same position as the blade 1, the positions of the angle adjustment columns 33 are arranged in sequence with an angle gradient of 1 degree . Thus, a full 360-degree angle adjustment with a minimum angle of 1 degree can be realized.

Embodiment 2

[0034] There are 5 angle adjusters 3, and the angle adjustment teeth 311 of each angle adjuster 3 are 72. When the angle adjustment teeth 311 and the blade 1 are in the same position, the positions of the angle adjustment columns 33 are arranged in sequence with an angle gradient of 1 degree . Thus, a full 360-degree angle adjustment with a minimum angle of 1 degree can be realized.

Embodiment 3

[0036] There are 10 angle adjusters 3, and each angle adjuster 3 has 72 angle adjustment teeth 311. When the angle adjustment teeth 311 are in the same position as the blade 1, the positions of the angle adjustment columns 33 are sequentially adjusted with an angle gradient of 0.5 degrees. arrangement. Thus, a full 360-degree angle adjustment with a minimum angle of 0.5 degrees can be realized.

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Abstract

The invention discloses a fan, which comprises a blade, a mounting base and an angle adjuster, the angle adjuster is connected with the end of the blade, the angle adjuster and the ends of the blade are both located in the mounting base, and the angle adjuster is fixedly connected with the mounting base , one end of the angle adjuster is evenly provided with a plurality of angle adjustment teeth, and the end of the blade is provided with tooth grooves matching with the angle adjustment teeth. By setting the angle adjustment teeth at one end of the angle adjuster and the angle adjustment column at the other end, and cooperating with multiple angle adjusters with different positions of the angle adjustment columns, the blades of the fan can be adjusted to a secondary angle. Simple adjustment, convenient disassembly and assembly, and high angle adjustment accuracy.

Description

technical field [0001] The invention relates to a fan, in particular to a fan with adjustable blade angles. Background technique [0002] A fan in the prior art usually includes a motor, an impeller and a hub. The impeller is fixedly installed outside the hub, and the motor is connected to the hub and drives the hub to rotate. Blades are fixedly arranged around the impeller, and the angle between the blades and the air supply direction is less than 90 degrees. When the angles are different, the air volume of the blades will also be different. Normally, the angle between the blades and the air supply direction is fixed, and the air volume can only be changed by changing the speed of the motor, but the span of the motor speed from one gear to another is too large to Realize the fine adjustment of the air supply volume, especially in industrial production, when the air supply volume requirements are relatively fine, it cannot meet the requirements of industrial production. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/36
Inventor 林祥
Owner SUZHOU DFL AIR CONTROL TECH CO LTD
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