CN213298375U

CN213298375U - Centrifugal fan blade structure and centrifugal fan

Info

Publication number: CN213298375U
Application number: CN202022215197.4U
Authority: CN
Inventors: 俞皓; 杨树德
Original assignee: Shanghai Pudong Zhangjiang Electromotor Co ltd
Current assignee: Shanghai Pudong Zhangjiang Electromotor Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-28
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a centrifugal fan blade structure and centrifugal fan, it includes the fan blade dish, be provided with the blade on the fan blade dish, the blade is provided with a plurality ofly, arbitrary around fan blade dish central line interval the one end and the fan blade dish integrated into one piece of blade, arbitrary the other end of blade all extends to the one side of keeping away from the fan blade dish. This application helps simplifying the fan blade structure, promotes production efficiency, increases the effect of blade stability of arranging.

Description

Centrifugal fan blade structure and centrifugal fan

Technical Field

The application relates to the technical field of centrifugal fans, in particular to a centrifugal fan blade structure and a centrifugal fan.

Background

At present, the fan blades of the centrifugal fan are moving parts assembled in a centrifugal fan shell, and the fan blades rotating at a high speed are used for accelerating gas, then decelerating and changing the flow direction so as to convert kinetic energy into potential energy. In a single-stage centrifugal fan, air enters the fan blades from the axial direction, and the air changes into the radial direction when flowing through the fan blades.

The prior Chinese patent with the publication number of CN202789714U discloses a lock joint type centrifugal fan blade, which comprises blade spoke disks, wherein the blade spoke disks are correspondingly arranged at the left side and the right side, positioning clamping grooves are annularly distributed on the blade spoke disks, a wind blade is arranged between the blade spoke disks, the surface of the wind blade is in a concave arc shape, the tail ends of the two sides of the wind blade are provided with positioning sheets, and the positioning sheets are correspondingly locked with the positioning clamping grooves; the wind blades form an included angle.

Aiming at the related technologies, the inventor thinks that the defects of complex structure, complex production process and poor blade arrangement stability of the wind blades exist.

SUMMERY OF THE UTILITY MODEL

In order to improve the fan blade structure complicacy, the production process is complicated, the relatively poor problem of fan blade stability of arranging, this application purpose one is in providing a centrifugal fan blade structure, and it has fan blade simple structure, and the production process is simple, and the blade stability of arranging is better. Based on above-mentioned centrifugal fan blade structure, this application purpose two is in providing a centrifugal fan, and it possesses the air supply efficiency height, and the air supply is stable.

The specific scheme is as follows:

the utility model provides a centrifugal fan blade structure, includes the fan blade dish, be provided with the blade on the fan blade dish, the blade is provided with a plurality ofly, arbitrary around fan blade dish central line interval the one end and the fan blade dish integrated into one piece of blade, arbitrary the other end of blade all extends to the one side of keeping away from the fan blade dish.

Through adopting above-mentioned technical scheme, in the application, with the one end and the fan blade dish integrated into one piece of arbitrary blade, the other end of blade extends to the one side of keeping away from the fan blade dish, helps simplifying the fan blade structure, promotes production efficiency, increases the stability that the fan blade was arranged.

Preferably, an upright post is integrally formed on the fan blade disc, a shaft hole used for penetrating through an output shaft of the driving motor is formed in the upright post, and the shaft hole penetrates through the upright post and the fan blade disc.

Through adopting above-mentioned technical scheme, by shaft hole and driving motor's output shaft, help promoting the rotation efficiency of fan blade dish.

Preferably, a key groove is formed in the shaft hole, the length direction of the key groove is parallel to the axis direction of the upright column, and the key groove penetrates through the upright column and the fan blade disc.

Through adopting above-mentioned technical scheme, by keyway and driving motor's output shaft, help promoting the pivoted stability of fan blade dish.

Preferably, any one of the blades is arranged straight, and any one of the blades is perpendicular to the surface of the fan blade disc.

Through adopting above-mentioned technical scheme, through being straight setting with the blade, help simplifying the blade structure, promote staff's production efficiency.

Preferably, any blade all includes working face and non-working face, working face and non-working face all are the cambered surface setting.

Through adopting above-mentioned technical scheme, through presenting the cambered surface setting with the working face with non-working face, help promoting the air supply efficiency of blade.

Based on above-mentioned centrifugal fan blade structure, this application has still provided a centrifugal fan, including fan casing, impeller and drive impeller pivoted driving motor, the impeller includes foretell centrifugal fan blade structure.

Through adopting above-mentioned technical scheme, drive the impeller rotation in the fan casing by driving motor, help promoting centrifugal fan's air supply efficiency.

Preferably, the fan housing comprises a first housing and a second housing which are detachably connected, and the first housing and the second housing are integrally formed; the first shell is provided with an air inlet, and the second shell is provided with an air outlet.

Through adopting above-mentioned technical scheme, through setting up the fan casing into integrated into one piece's first casing and second casing, help simplifying the centrifugal fan structure, the later stage dismouting of being convenient for is maintained.

Preferably, the first housing is provided with a plurality of fixing bolts at intervals around the first housing, and a screw of any one of the fixing bolts penetrates through the first housing and is in threaded connection with the second housing.

Through adopting above-mentioned technical scheme, fix first casing on the second casing by fixing bolt, help promoting the convenience of the fixed first casing of staff.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the blades and the fan blade disc are integrally formed, so that the fan blade structure is facilitated to be simplified, the production efficiency is improved, and the arrangement stability of the blades is improved;

2. the working surface and the non-working surface of the blade are arranged in a cambered surface through the key slot, so that the air supply efficiency of the blade is improved;

3. by fixing bolt to and the first casing and the second casing that integrated into one piece set up, help promoting staff's later maintenance's convenience.

Drawings

FIG. 1 is an overall schematic view mainly embodying a fan blade structure of a centrifugal fan;

FIG. 2 is a schematic view of an overall structure embodying a centrifugal fan;

fig. 3 is an exploded schematic view mainly embodying a centrifugal fan.

Reference numerals: 1. a fan blade disc; 2. a blade; 21. a working surface; 22. a non-working surface; 3. a column; 31. a shaft hole; 32. a keyway; 4. a fan housing; 41. a first housing; 411. an air inlet; 412. fixing the bolt; 42. a second housing; 421. an air outlet; 5. an impeller; 6. the motor is driven.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses centrifugal fan blade structure.

Referring to fig. 1, a centrifugal fan blade structure, including the fan blade dish 1, be provided with blade 2 on the fan blade dish 1, blade 2 is provided with a plurality ofly around fan blade dish 1 central line interval, and the one end and the fan blade dish 1 integrated into one piece of arbitrary blade 2, and the other end of arbitrary blade 2 all extends to the one side of keeping away from fan blade dish 1.

In the application, the staff sets up blade 2 and fan blade dish 1 integrated into one piece, and in the manufacturing process, the staff demolds the preparation with blade 2 and fan blade dish 1 together.

Referring to fig. 1, a vertical column 3 is fixed on the vane plate 1, the axis of the vertical column 3 coincides with the axis of the vane plate 1, one end of the vertical column 3 is integrally formed with the vane plate 1, and the other end of the vertical column 3 extends to one side far away from the vane plate 1. Shaft hole 31 has been seted up on stand 3, and shaft hole 31 runs through stand 3 and bladed disk 1, has seted up keyway 32 on one side of shaft hole 31, and the length direction of keyway 32 is parallel with the axis direction of stand 3, and keyway 32 runs through stand 3 and bladed disk 1. Any blade 2 all is the straight setting, and any blade 2 all is located one side of stand 3 extending direction and perpendicular with the surface of bladed disk 1. Any blade 2 all includes working face 21 and non-working face 22, and working face 21 and non-working face 22 all are the cambered surface setting.

The implementation principle of the centrifugal fan blade structure in the embodiment of the application is as follows: in the application, stand 3 sets up with 1 integrated into one piece of bladed disk, and a plurality of straight blades 2 that set up are located one side that stand 3 extended on 1 bladed disk, a plurality of blades 2 and 1 integrated into one piece of bladed disk.

The embodiment of the application also discloses a centrifugal fan.

Referring to fig. 2 and 3, the centrifugal fan comprises a fan casing 4, an impeller 5 and a driving motor 6 for driving the impeller 5 to rotate, wherein the impeller 5 comprises the fan blade structure of the centrifugal fan. The fan housing 4 includes a first housing 41 and a second housing 42, and the first housing 41 and the second housing 42 are integrally formed. An air inlet 411 is formed in the first housing 41, the air inlet 411 faces the lower side, an air outlet 421 is formed in the lower side of the second housing 42, fixing bolts 412 penetrate through the first housing 41, four fixing bolts 412 are uniformly arranged on the peripheral side of the first housing 41 at intervals, and a screw of any fixing bolt 412 penetrates through the first housing 41 and is in threaded connection with the second housing 42.

The implementation principle of the centrifugal fan in the embodiment of the application is as follows: in the application, the impeller 5 is embedded in the second housing 42, then the output shaft of the driving motor 6 is connected with the impeller 5, and then the first housing 41 is fixed on the second housing 42 through the fixing bolt 412, after the assembly is completed, the driving motor 6 drives the impeller 5 to rotate, and air enters from the air inlet 411 on the first housing 41, passes through the impeller 5, and then is discharged from the air outlet 421 of the second housing 42.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a centrifugal fan blade structure, includes fan blade dish (1), its characterized in that: be provided with blade (2) on bladed disk (1), blade (2) are provided with a plurality ofly around bladed disk (1) central line interval, arbitrary the one end and bladed disk (1) integrated into one piece of blade (2), arbitrary the other end of blade (2) all extends to the one side of keeping away from bladed disk (1).

2. The fan blade structure of the centrifugal fan as claimed in claim 1, wherein: the fan blade disc is characterized in that an upright post (3) is integrally formed on the fan blade disc (1), a shaft hole (31) used for penetrating through an output shaft of a driving motor is formed in the upright post (3), and the shaft hole (31) penetrates through the upright post (3) and the fan blade disc (1).

3. The fan blade structure of the centrifugal fan as claimed in claim 2, wherein: the shaft hole (31) is provided with a key groove (32), the length direction of the key groove (32) is parallel to the axis direction of the upright post (3), and the key groove (32) penetrates through the upright post (3) and the fan blade disc (1).

4. The fan blade structure of the centrifugal fan as claimed in claim 1, wherein: any blade (2) is straight and arranged, and any blade (2) is perpendicular to the surface of the fan blade disc (1).

5. The fan blade structure of the centrifugal fan as claimed in claim 4, wherein: any blade (2) all includes working face (21) and non-working face (22), working face (21) and non-working face (22) all are the cambered surface setting.

6. The utility model provides a centrifugal fan, includes fan casing (4), impeller (5) and drive impeller (5) pivoted driving motor (6), its characterized in that: the impeller (5) comprises the blade structure of the centrifugal fan as claimed in any one of claims 1 to 5.

7. The centrifugal fan according to claim 6, wherein: the fan shell (4) comprises a first shell (41) and a second shell (42) which are detachably connected, and the first shell (41) and the second shell (42) are integrally formed; an air inlet (411) is formed in the first shell (41), and an air outlet (421) is formed in the second shell (42).

8. The centrifugal fan according to claim 7, wherein: the first shell (41) is provided with a plurality of fixing bolts (412), the fixing bolts (412) are arranged on the peripheral side of the first shell (41) at intervals, and the screw of any fixing bolt (412) penetrates through the first shell (41) and is in threaded connection with the second shell (42).