Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate

An anti-drop-shaped, fan impeller technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as personnel and equipment safety accidents, strong vibration, etc., to achieve reliable use, high strength, and material saving.

Inactive Publication Date: 2015-11-18
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once some hardened dust is shaken off by vibration, it will immediately leave the dynamic rotation balance...

Method used

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  • Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate
  • Dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and disk-shaped back plate

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Embodiment Construction

[0020] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0021] Such as figure 1 and figure 2 The impeller of the anti-dust fan with the blades shown as anti-droplets and dish-shaped backboards includes the impeller backboard 7, the impeller panel 8 and the blades 1. The blades 1 are arranged in a hollow anti-waterdrop shape radial to the impeller axis and symmetrical to the center. The impeller back plate 7 is dish-shaped; the hollow anti-drop-shaped blade 1 is connected to the impeller panel 8 and welded with the disc-shaped impeller back plate 7 to form the impeller main body; the impeller panel 8 is provided with an air inlet 3, and the disc-shaped impeller back plate 7 is fixed by rivets 5 And connect the shaft seat 4, the shaft seat 4 is matched with the fan shaft through the shaft hole 6.

[0022] The hollow anti-drop-shaped blade 1 is welded and combined by two curved metals, and has a symmetrical streamlined shape...

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PUM

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Abstract

The invention discloses a dust-accumulation-proof fan propeller with reverse-droplet-shaped blades and a disk-shaped back plate. The fan propeller comprises the propeller back plate, a propeller panel and the blades, wherein the blades are in the shape of a reverse droplet, arranged in the radial direction of a propeller shaft and are in central symmetry; the propeller back plate is in the shape of a disk; the hollow reverse-droplet-shaped blades are connected with the propeller panel and welded to the disk-shaped propeller back plate, so that a propeller body is formed; the propeller panel is provided with an air inlet; the disk-shaped propeller back plate is fixed through rivets and connected with a shaft base; and the shaft base is in matched connection with a fan shaft through a shaft hole. When the fan propeller is in use, because the blades are hollow and in the shape of the reverse droplet, and blade shafts are in radial central symmetry; when the blades rotate at a high speed, the surfaces of the blades have a self-cleaning effect under the action of centrifugal force, dust cannot adhere to the blades due to centrifugal force and does not accumulate, and the dust-accumulation-proof fan propeller is particularly applicable to a wide-impeller large fan which has the large distance between a front end plate and a rear end plate of an impeller, and is particularly high in quantity of needed conveyed air; and due to the disk-shaped back plate, the compressive strength of the fan is improved, and the service life of the fan is prolonged.

Description

technical field [0001] The invention relates to a fan impeller, in particular to an anti-dust fan impeller with reverse drop-shaped blades and a disc-shaped back plate. Background technique [0002] The fan is a power device for gas transportation and has a wide range of applications. However, the airflow in most applications contains a certain amount of dust. When the fan is working, when the airflow passes through the high-speed rotating fan impeller, due to centrifugal separation, the dust particles will be separated. The airflow phase deposits and adheres to the fan impeller. [0003] Since the speed of the fan impeller is generally high, as long as there is a small amount of dust in the airflow, more dust will accumulate after a long time of work, thereby changing the balance of the fan impeller rotation. If the fan impeller has no self-cleaning effect on the dust and is not cleaned in time, it will It will accumulate and gradually change the static and dynamic balance...

Claims

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Application Information

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IPC IPC(8): F04D29/28F04D29/30F04D29/70
Inventor 银永忠
Owner JISHOU UNIVERSITY
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