CN211715397U

CN211715397U - Impeller of ventilator

Info

Publication number: CN211715397U
Application number: CN202020225313.8U
Authority: CN
Inventors: 聂福坚
Original assignee: Dongguan Guotong Ventilation Equipment Co ltd
Current assignee: Guangdong East Ventilation Fan Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-20
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a ventilator impeller, which relates to the technical field of ventilators, and comprises a front disc, arc blades and a rear disc, wherein the blades are fixedly arranged between the front disc and the rear disc; the utility model provides a blade operation stable, non-deformable's technical problem.

Description

Impeller of ventilator

Technical Field

The utility model relates to a ventilation blower technical field especially relates to an impeller.

Background

The impeller of the existing centrifugal ventilator is generally composed of a front disc, arc-shaped blades and a rear disc, the two ends of the blades are respectively and directly welded on the front disc and the rear disc, then a shaft disc is installed on the rear disc to drive the impeller to rotate, and in the process of flying rotation of the impeller, the single impeller is easily blown to deform, so that the impeller loses dynamic balance, and vibration and noise of equipment are increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an operation is stable, non-deformable's ventilation blower impeller to solve the problem that proposes in the background art.

In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

the utility model provides a ventilation blower impeller, includes the head disk, is curved blade and back plate, the blade is fixed to be set up in the front between head disk and the back plate, the utility model discloses still include the neck ring, the air intake has been seted up on the head disk, the shaft hole has been seted up on the back plate, the blade has two at least, and uses the center pin in shaft hole to be circumference array arrangement as the center, the neck ring in proper order with blade fixed connection, and the center pin collineation in center pin and the shaft hole of neck ring.

Further, the neck ring comprises an inner diameter ring, and the part of the blade close to the central shaft of the shaft hole is fixedly connected with the inner diameter ring.

Further, the neck ring also comprises an outer diameter ring, and the part of the blade far away from the central shaft of the shaft hole is fixedly connected with the outer diameter loop.

Furthermore, the front disc is in a horn mouth shape, and the diameter of the cross section of one side, away from the blades, of the front disc is gradually reduced.

Furthermore, the air inlet is circular, and the central axis of the air inlet is collinear with the central axis of the shaft hole.

Furthermore, one end of the blade, which is close to the air inlet, is provided with a chamfer.

Furthermore, a screw hole is formed in the rear disc along the shaft hole in a circle.

Further, the number of the blades is eight to twelve.

Further, the radius of the blade intrados is 710 mm.

Further, the inner diameter of the air inlet is 705 mm.

The utility model has the advantages that: the utility model discloses a with the center pin in multi-disc impeller use the shaft hole as the center, carry out the circumference array and arrange, make the blade realize dynamic balance when rotating, in addition, through setting up the neck ring, make neck ring and every blade fixed connection in proper order, further firmly be a whole with all blades, increased the stability of blade to a certain extent, and the center pin collineation in center pin and the shaft hole of neck ring, make the blade move more stably at rotatory in-process, difficult emergence is out of shape, compare with the conventional art, the utility model discloses the operation is more stable, has also reduced vibrations and the noise of equipment when the operation to a certain extent.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a rear view of the overall structure of the present invention;

FIG. 5 is a schematic view of the front plate structure of the present invention;

FIG. 6 is a schematic view of the blade structure of the present invention;

the reference signs are:

a front disc 1, an air inlet 11, blades 2, a neck ring 3, an inner diameter ring 31, an outer diameter ring 32, a rear disc 4, an axle hole 41, a screw hole 42,

the air duct 5, the air outlet 6, the radius R of the inner arc surface of the blade and the inner diameter R of the air inlet.

Detailed Description

The present invention is further explained with reference to the accompanying drawings, as shown in fig. 1 to 6, a ventilator impeller includes a front disc 1, arc-shaped blades 2, a neck ring 3 and a rear disc 4, the blades 2 are fixedly disposed between the front disc 1 and the rear disc 4, for convenience of description, one side of the blades 2 close to the front disc 1 is referred to as a front side of the blades 2, one side of the blades 2 close to the rear disc 4 is referred to as a rear side of the blades 2, an air inlet 11 is disposed on the front disc 1, a shaft hole 41 is disposed on the rear disc 4, the blades 2 can be set to eight to twelve pieces, in this embodiment, the blades 2 have twelve pieces, and are circumferentially arrayed with a central shaft of the shaft hole 41 as a center, so as to ensure sufficient air intake and facilitate the blades 2 to realize dynamic balance when rotating; the neck rings 3 are fixedly connected with the blades 2 in sequence, each blade 2 is fixedly connected with the neck rings 3, all the blades 2 are further firmly integrated, and the stability of the blades 2 is increased to a certain extent; the central axis of the neck ring 3 is collinear with the central axis of the shaft hole 41, so that the blade 2 runs more stably in the rotating process and is not easy to deform.

For convenience of description, a side of the vane 2 closer to the central axis of the shaft hole 41 is referred to as an inner side of the vane 2, and a side of the vane 2 farther from the central axis of the shaft hole 41 is referred to as an outer side of the vane 2.

The neck ring 3 comprises an inner diameter ring 31 and an outer diameter ring 32, the part of the blade 2 close to the central shaft of the shaft hole 41 is fixedly connected with the inner diameter ring 31, and the part of the blade 2 far from the central shaft of the shaft hole 41 is fixedly connected with the outer diameter ring 32; the inner diameter ring 31 makes the inner side of the blade 2 more firm, and the outer diameter ring 32 makes the outer side of the blade 2 more firm, so that the blade 2 is not easily deformed when rotating.

The front plate 1 is the horn mouth shape, and the cross section diameter that the front plate 1 kept away from blade 2 one side reduces gradually, and air intake 11 is circularly, and the center pin of air intake 11 and shaft hole 41's center pin collineation, and front plate 1, blade 2 enclose into a ventiduct 5 with blade 2 and back plate 4 jointly, and the outside of front plate 1, blade 2 and back plate 4 form air outlet 6, the utility model discloses during operation, the air gets into ventiduct 5 from air intake 11, is thrown away from air outlet 6 through blade 2.

One end of the blade 2 close to the air inlet 11 is provided with a chamfer, so that air can enter the air duct 5 more conveniently; the rear disc 4 is provided with a screw hole 42 along the shaft hole 41 in a circle, which is favorable for assembling the shaft disc on the rear disc 4.

The radius R of 2 intrados of blade is 710mm, and the cambered surface radius as shown in FIG. 6 promptly, and the internal diameter R of air intake 11 is 705mm, through many times of experiments, uses this group of data to make the utility model discloses a work efficiency reaches the best.

The working principle is as follows: the utility model discloses during the rotation, the air gets into air duct 5 from air intake 11, and the air in air duct 5 is thrown away from air outlet 6 through blade 2 after that.

The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are still within the technical scope of the present invention.

Claims

1. The utility model provides a ventilator wheel, includes the front bezel, is curved blade and after-disc, the blade is fixed to be set up between front bezel and after-disc, its characterized in that: the blade assembly is characterized by further comprising a neck ring, wherein an air inlet is formed in the front disc, a shaft hole is formed in the rear disc, the blades are provided with at least two pieces and are arranged in a circumferential array mode by taking a central shaft of the shaft hole as a center, the neck ring is fixedly connected with the blades in sequence, and the central shaft of the neck ring is collinear with the central shaft of the shaft hole.

2. A ventilator wheel in accordance with claim 1, wherein: the neck ring comprises an inner diameter ring, and the part of the blade close to the central shaft of the shaft hole is fixedly connected with the inner diameter ring.

3. A ventilator wheel in accordance with claim 2, wherein: the neck ring further comprises an outer diameter ring, and the part of the blade far away from the central shaft of the shaft hole is fixedly connected with the outer diameter loop.

4. A ventilator wheel in accordance with claim 1, wherein: the front disc is in a horn mouth shape, and the diameter of the cross section of one side, far away from the blades, of the front disc is gradually reduced.

5. A ventilator wheel in accordance with claim 1, wherein: the air inlet is circular, and the central axis of the air inlet is collinear with the central axis of the shaft hole.

6. A ventilator wheel in accordance with claim 1, wherein: and one end of each blade, which is close to the air inlet, is provided with a chamfer.

7. A ventilator wheel in accordance with claim 1, wherein: and a screw hole is formed in the rear disc along the shaft hole in a circle.

8. A ventilator wheel in accordance with claim 1, wherein: the number of the blades is eight to twelve.

9. A ventilator wheel in accordance with claim 1, wherein: the radius of the intrados of the blade is 710 mm.

10. A ventilator wheel according to any one of claims 1 to 9 wherein: the inner diameter of the air inlet is 705 mm.