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Impeller and manufacturing method thereof, centrifugal fan and cleaning vehicle

A manufacturing method and a centrifugal fan technology, applied in the field of sanitation, can solve the problems of impeller separation and flow, high noise, etc.

Active Publication Date: 2016-01-20
ZOOMLION ENVIRONMENTAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the impeller of the prior art has phenomena such as separation flow and vortex flow, and the noise is relatively large

Method used

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  • Impeller and manufacturing method thereof, centrifugal fan and cleaning vehicle
  • Impeller and manufacturing method thereof, centrifugal fan and cleaning vehicle
  • Impeller and manufacturing method thereof, centrifugal fan and cleaning vehicle

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Embodiment Construction

[0024] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0025] In the present invention, in the case of no contrary description, the used orientation words such as "up, down, left and right" usually refer to the up, down, left and right shown in the accompanying drawings; "inside and outside" Refers to the inside and outside of the outline of each part itself.

[0026] According to one aspect of the present invention, there is provided an impeller comprising a wheel cover 10, wherein the wheel cover profile 1 of the wheel cover 10 is formed to conform to a curve (Z, R), wherein the curve (Z , R) is a curve whose horizontal axis is the axis of the impeller (of the rotating shaft 30) and whose vertical axis is the dir...

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Abstract

The invention discloses an impeller and a manufacturing method thereof, a centrifugal fan and a sweeper, wherein the centrifugal fan comprises the impeller. The shape of an impeller cover molded line (1) of the impeller is matched with that of a curve (Z, R), the curve (Z, R) makes a rotary shaft of the impeller as a transverse axis and makes the direction perpendicular to the rotary shaft as a longitudinal axis, the direction perpendicular to the rotary shaft is located in the impeller plate plane of the impeller, and the curve satisfies the equations shown as follows. The impeller cover molded line of the impeller is reasonable in design, airflow enters in the axial direction of the impeller, and flows out in the radial direction, so that the airflow which turns round just flows close to an impeller cover and an impeller plate, separation flowing nearby the surface of the impeller cover is reduced, the airflow of a passageway of the impeller is more smooth, and therefore performance of the centrifugal fan is improved, and noise of the centrifugal fan is reduced.

Description

technical field [0001] The invention relates to the field of sanitation, in particular to an impeller, a manufacturing method thereof, a centrifugal fan and a cleaning vehicle including the impeller. Background technique [0002] The centrifugal fan includes a wheel cover, a wheel disc, a wheel shaft and a volute. The contour line of the meridian plane of the impeller includes the wheel cover profile and the wheel disc profile. The wheel disc profile is composed of a straight line perpendicular to the axis of the impeller and a circular arc. The profile line of the wheel cover is a curve. The wheel cover shape design of the existing sweeping vehicle impeller is mainly based on the assumption of one-dimensional or two-dimensional ideal fluid, and most of them adopt the simple hyperbolic wheel cover form or the inclined straight wheel cover form. In fact, the internal flow of the impeller is a complex three-dimensional flow, and the contour of the meridian surface of the impe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28E01H1/08
Inventor 张斌李亮张劲肖庆麟龙亮
Owner ZOOMLION ENVIRONMENTAL IND CO LTD
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