CN218991960U

CN218991960U - Impeller structure of centrifugal fan

Info

Publication number: CN218991960U
Application number: CN202222373115.8U
Authority: CN
Inventors: 阳松
Original assignee: Ma'anshan Chenyuda Fan Industry Co ltd
Current assignee: Ma'anshan Chenyuda Fan Industry Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-05-09
Anticipated expiration: 2032-09-06

Abstract

The utility model provides a centrifugal fan impeller structure which comprises a fan body, wherein a power shaft is arranged in an inner cavity of the fan body, an impeller body is arranged on the front face of the power shaft, first mounting grooves are formed in the surface of the impeller body, the number of the first mounting grooves is five, and fan blades are movably connected in the inner cavity of the first mounting grooves. This kind of centrifugal fan impeller structure is through setting up the power shaft for drive the impeller body and rotate, thereby drive the flabellum and rotate, provide rotation power for the flabellum, through setting up first mounting groove, be used for installing the flabellum, through setting up the bolt, be used for fixing the inside at first mounting groove with the flabellum, be convenient for install and dismantle the flabellum, it is mostly the integral type structure of front disc to have solved current impeller, blade and back dish, the impeller maintenance of this kind of structure is inconvenient, and the impeller is mostly direct welding on the back dish, the problem of the maintenance of being inconvenient for change.

Description

Impeller structure of centrifugal fan

Technical Field

The utility model relates to the technical field of fan impellers, in particular to a centrifugal fan impeller structure.

Background

The centrifugal fan is a driven fluid machine which is used for increasing the pressure of gas and discharging the gas by means of the input mechanical energy, is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, the impeller is a key component in the centrifugal fan, the performance of the centrifugal fan depends on the structure of the impeller to a great extent, the existing impeller is of an integrated structure of a front disc, blades and a rear disc, the maintenance of the impeller of the structure is inconvenient, and the impeller is directly welded on the rear disc, so that the replacement and the maintenance are inconvenient. Therefore, we make improvements to this and propose a centrifugal fan impeller structure.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a centrifugal fan impeller structure, which comprises a fan body, wherein a power shaft is arranged in an inner cavity of the fan body, an impeller body is arranged on the front surface of the power shaft, first mounting grooves are formed in the surface of the impeller body, the number of the first mounting grooves is five, fan blades are movably connected in the inner cavity of the first mounting grooves, bolts are connected with the front surface of the impeller body in a threaded manner, the number of the bolts is five, the rear ends of the bolts extend to the inner cavity of the fan blades and are in threaded connection with the inner cavity of the fan blades, a second mounting groove is formed in the front surface of the power shaft, a mounting column is fixedly connected to the back surface of the impeller body, and the rear ends of the mounting columns extend to the inner cavity of the second mounting groove and are movably connected with the inner cavity of the second mounting groove.

As a preferable technical scheme of the utility model, both sides of the mounting column are provided with the fixing grooves, and the inner cavities of the fixing grooves are connected with the clamping blocks in a sliding manner.

As a preferable technical scheme of the utility model, the inner cavity of the fixed groove is fixedly connected with a spring, and one side of the spring far away from the inner cavity of the fixed groove is fixedly connected with the clamping block.

As a preferable technical scheme of the utility model, positioning holes are formed on two sides of the power shaft, and one end of the spring extends to the inner cavity of the positioning hole and is movably connected with the inner cavity of the positioning hole.

As a preferable technical scheme of the utility model, the front and the back of the inner cavity of the fixed groove are respectively provided with a sliding groove, and the inner cavity of the sliding groove is connected with a sliding block in a sliding way.

As a preferable technical scheme of the utility model, one side of the sliding block, which is far away from the inner cavity of the sliding groove, is fixedly connected with the clamping block, and both sides of the inner cavity of the power shaft are fixedly connected with the limiting grooves.

As a preferable technical scheme of the utility model, two sides of the fan blade are provided with limiting blocks, and one side of each limiting block extends to the inner cavity of the limiting groove and is movably connected with the inner cavity of the limiting groove.

The beneficial effects of the utility model are as follows: this kind of centrifugal fan impeller structure is through setting up the power shaft for drive the impeller body and rotate, thereby drive the flabellum and rotate, provide rotation power for the flabellum, through setting up first mounting groove, be used for installing the flabellum, through setting up the bolt, be used for fixing the inside at first mounting groove with the flabellum, be convenient for install and dismantle the flabellum, thereby be convenient for carry out solitary dismantlement maintenance to the flabellum, cooperation through second mounting groove and erection column, the effect of being convenient for install and dismantle the impeller body has been played, thereby be convenient for maintain the impeller body, the impeller maintenance of having solved current impeller is mostly the front disc, the blade and the integral type structure of rear disc, the impeller maintenance of this kind of structure is inconvenient, and the impeller is mostly direct welding on the rear disc, the problem of the maintenance of being inconvenient for change.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout exemplary embodiments of the disclosure.

FIG. 1 is a schematic diagram of the front view of a centrifugal fan impeller structure of the present utility model;

FIG. 2 is a schematic view of a left side plan view of a fan blade of a centrifugal fan impeller according to the present utility model;

FIG. 3 is a schematic cross-sectional view of an impeller body of a centrifugal fan impeller structure according to the present utility model;

FIG. 4 is a schematic diagram of the explosive structure of the power shaft, impeller body and second mounting groove of the centrifugal fan impeller structure of the present utility model;

fig. 5 is a schematic diagram of an exploded structure of a centrifugal fan impeller structure fixing groove, a fixture block and a spring according to the present utility model.

In the figure: 1. a fan body; 2. a power shaft; 3. an impeller body; 4. a first mounting groove; 5. a fan blade; 6. a bolt; 7. a second mounting groove; 8. a mounting column; 9. a fixing groove; 10. a clamping block; 11. a spring; 12. positioning holes; 13. a chute; 14. a slide block; 15. a limit groove; 16. and a limiting block.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Examples: as shown in fig. 1-5, the centrifugal fan impeller structure of the utility model comprises a fan body 1, a power shaft 2 is arranged in the inner cavity of the fan body 1, an impeller body 3 is arranged on the front surface of the power shaft 2, first mounting grooves 4 are arranged on the surface of the impeller body 3, the number of the first mounting grooves 4 is five, fan blades 5 are movably connected in the inner cavity of the first mounting grooves 4, bolts 6 are connected in the front surface of the impeller body 3 in a threaded manner, the number of the bolts 6 is five, the rear ends of the bolts 6 extend to the inner cavity of the fan blades 5 and are in threaded connection with the inner cavity of the fan blades 5, a second mounting groove 7 is arranged on the front surface of the power shaft 2, a mounting column 8 is fixedly connected on the back surface of the impeller body 3, the rear end of the mounting column 8 extends to the inner cavity of the second mounting groove 7 and is movably connected with the inner cavity of the second mounting groove 7, through setting up power shaft 2 for drive impeller body 3 and rotate, thereby drive flabellum 5 and rotate, provide rotation power for flabellum 5, through setting up first mounting groove 4, be used for installing flabellum 5, through setting up bolt 6, be used for fixing flabellum 5 in the inside of first mounting groove 4, be convenient for install and dismantle flabellum 5, thereby be convenient for carry out solitary dismantlement maintenance to flabellum 5, through the cooperation of second mounting groove 7 and erection column 8, the effect of being convenient for install and dismantle impeller body 3 has been played, thereby be convenient for maintain impeller body 3, the integral type structure that current impeller is mostly the front disc, blade and back dish has been solved, the impeller maintenance of this kind of structure is inconvenient, and the impeller is mostly direct welding on the back dish, be inconvenient for change the problem of maintenance.

Wherein, fixed slot 9 has all been seted up to the both sides of erection column 8, and the inner chamber sliding connection of fixed slot 9 has fixture block 10, through setting up fixed slot 9 for place fixture block 10 and fixed spring 11, improve the stability of spring 11 when using, through the cooperation of fixture block 10 and locating hole 12, played the effect of fixing erection column 8 at the inside of second erection tank 7, and through shifting out fixture block 10 from the inside of locating hole 12, can realize being convenient for dismantle the purpose of maintenance to impeller body 3.

Wherein, the inner chamber fixedly connected with spring 11 of fixed slot 9, one side that the fixed slot 9 inner chamber was kept away from to spring 11 and fixture block 10 fixed connection, through setting up spring 11, played the effect of reseing fixture block 10 to reset fixture block 10 to the inside of locating hole 12 and with the inner chamber block fixed of locating hole 12.

Wherein, the locating hole 12 has all been seted up to the both sides of power shaft 2, and the one end of spring 11 extends to the inner chamber of locating hole 12 to with the inner chamber swing joint of locating hole 12.

The front and the back of the inner cavity of the fixed slot 9 are both provided with sliding grooves 13, the inner cavity of the sliding grooves 13 is slidably connected with sliding blocks 14, and the sliding grooves 13 and the sliding blocks 14 are matched to play a role of limiting the clamping blocks 10, so that the clamping blocks 10 are prevented from falling off from the inside of the fixed slot 9.

One side of the sliding block 14 far away from the inner cavity of the sliding groove 13 is fixedly connected with the clamping block 10, both sides of the inner cavity of the power shaft 2 are fixedly connected with the limiting grooves 15, the limiting blades 5 are limited through the matching of the limiting grooves 15 and the limiting blocks 16, and the situation that the blades 5 are shifted in position during moving is avoided.

The two sides of the fan blade 5 are provided with limiting blocks 16, and one side of each limiting block 16 extends to the inner cavity of each limiting groove 15 and is movably connected with the inner cavity of each limiting groove 15.

Working principle: this kind of centrifugal fan impeller structure is when using, at first insert the inside of first mounting groove 4 with flabellum 5, and fix the inside at first mounting groove 4 with flabellum 5 through bolt 6, five flabellum 5 are fixed after finishing, lift impeller body 3 and remove the front of power shaft 2 with impeller body 3, then both sides press fixture block 10 simultaneously and make fixture block 10 remove to the inside of fixed slot 9, fixture block 10 extrudees spring 11 and makes spring 11 produce deformation when removing, when fixture block 10 removes the inside of fixed slot 9, insert the inside of second mounting groove 7 with mounting post 8 and push away the inside of mounting post 7 to the inside of second mounting groove 7, the inner wall of second mounting groove 7 is squeezed fixture block 10 this moment, when fixture block 10 removes the position of locating hole 12, the pressure of second mounting groove 7 inner wall to fixture block 10 disappears, the elasticity that resets of spring 11 resets fixture block 10 entering locating hole 12 and with the inner chamber block of locating hole 12, thereby install impeller body 3, when need dismantle impeller body 3 when the maintenance, the impeller 3, the impeller is convenient for the change of the impeller dish after the impeller, the structure is convenient for replace the impeller, and the problem is more directly changed after the impeller dish has been solved.

In order to facilitate understanding of the solution and the effects of the embodiments of the present utility model, a specific application example is given below. It will be understood by those of ordinary skill in the art that the examples are for ease of understanding only and that any particular details thereof are not intended to limit the present utility model in any way.

It will be appreciated by persons skilled in the art that the above description of embodiments of the utility model has been given for the purpose of illustrating the benefits of embodiments of the utility model only and is not intended to limit embodiments of the utility model to any examples given.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims

1. The utility model provides a centrifugal fan impeller structure, includes fan body (1), its characterized in that, the inner chamber of fan body (1) is provided with power shaft (2), the front of power shaft (2) is provided with impeller body (3), first mounting groove (4) have been seted up on the surface of impeller body (3), and the quantity of first mounting groove (4) is five, the inner chamber swing joint of first mounting groove (4) has flabellum (5), the front threaded connection of impeller body (3) has bolt (6), and the quantity of bolt (6) is five, the rear end of bolt (6) extends to the inner chamber of flabellum (5) and with the inner chamber threaded connection of flabellum (5), second mounting groove (7) have been seted up in the front of power shaft (2), the back fixedly connected with erection column (8) of impeller body (3), the rear end of erection column (8) extends to the inner chamber of second mounting groove (7) to with the inner chamber swing joint of second mounting groove (7).

2. The centrifugal fan impeller structure according to claim 1, wherein both sides of the mounting column (8) are provided with fixing grooves (9), and an inner cavity of each fixing groove (9) is slidably connected with a clamping block (10).

3. The centrifugal fan impeller structure according to claim 2, wherein the inner cavity of the fixing groove (9) is fixedly connected with a spring (11), and one side of the spring (11) away from the inner cavity of the fixing groove (9) is fixedly connected with a clamping block (10).

4. A centrifugal fan impeller structure according to claim 3, wherein the two sides of the power shaft (2) are provided with positioning holes (12), and one end of the spring (11) extends to the inner cavity of the positioning hole (12) and is movably connected with the inner cavity of the positioning hole (12).

5. The centrifugal fan impeller structure according to claim 2, wherein the front and the back of the inner cavity of the fixed groove (9) are provided with sliding grooves (13), and the inner cavity of the sliding groove (13) is slidably connected with a sliding block (14).

6. The centrifugal fan impeller structure according to claim 5, wherein one side of the sliding block (14) away from the inner cavity of the sliding groove (13) is fixedly connected with the clamping block (10), and two sides of the inner cavity of the power shaft (2) are fixedly connected with limiting grooves (15).

7. The centrifugal fan impeller structure according to claim 6, wherein limiting blocks (16) are arranged on two sides of the fan blade (5), and one side of each limiting block (16) extends to the inner cavity of each limiting groove (15) and is movably connected with the inner cavity of each limiting groove (15).