CN220748596U

CN220748596U - Centrifugal fan

Info

Publication number: CN220748596U
Application number: CN202322399939.7U
Authority: CN
Inventors: 王璐; 谢能刚; 冯旭刚; 潘建伟; 王萌
Original assignee: Maanshan Angong University Intelligent Equipment Technology Institute Co ltd
Current assignee: Maanshan Angong University Intelligent Equipment Technology Institute Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-04-09
Anticipated expiration: 2033-09-05

Abstract

The utility model relates to the technical field of fans, and particularly discloses a centrifugal fan which comprises a machine shell, wherein the machine shell is cylindrical, annular rails are coaxially fixed at the front end and the rear end of the machine shell, an annular support is sleeved outside the annular rails in a sliding mode, the annular rails are fixedly connected with the annular support through fixing pieces, a base fixed with the annular support is arranged at the bottom of the machine shell, and a positioning mechanism for positioning the machine shell is arranged on the base. The utility model can flexibly rotate and adjust the shell, realizes various angle adjustment of the air port, has higher practicability and convenient operation, can effectively improve the transportation efficiency through adjustment, and has good shock absorption and protection effects under the variable load and variable speed working condition.

Description

Centrifugal fan

Technical Field

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

Background

The centrifugal fan is auxiliary production equipment commonly used by processing enterprises, and is mainly used in ventilation and dust removal devices, such as cyclone dust collectors, cloth bag dust collectors and the like in stone cutting and polishing procedures, dust removal treatment is required to be carried out on production sites by utilizing the centrifugal fan, so that clean production environment is ensured, and physical and mental health of producers is protected. The centrifugal fan has various use and working scenes, and has variable load and variable speed working conditions and the like.

The existing centrifugal fan needs to be customized in advance according to installation conditions, and various forms of air port orientation exist, such as a vertical orientation state, a flat orientation state and an inclined orientation state, but the existing centrifugal fan is mostly in an integrally fixed form, the air port position of the existing centrifugal fan is fixed, flexible adjustment cannot be carried out, the on-site butt joint of different pipeline orientations cannot be effectively met, only the customization can be carried out in advance, and the practical effect is poor.

To this end, we propose a centrifugal fan to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a centrifugal fan.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a centrifugal fan, includes the casing, the casing is cylindricly, both ends all coaxial fixed with annular rail around the casing, and annular rail outside slip cap is equipped with annular bracket, and annular rail passes through mounting fixed connection with annular bracket, and the casing bottom is equipped with the base fixed with annular bracket, is equipped with the positioning mechanism who is used for the location casing on the base.

Preferably, the front end of the shell is provided with a suction inlet which is coaxially arranged at the center of the circular orbit.

Preferably, the side of the shell is fixedly provided with an air port, the air port is in a rectangular cylinder shape, and the air port is positioned between the two annular rails.

Preferably, the fixing piece comprises a plurality of bolts, the annular track is provided with a plurality of first round holes, the annular support is provided with a plurality of second round holes, the first round holes and the second round holes are aligned, and the bolts penetrate through the aligned first round holes and second round holes and are connected with nuts in a threaded mode.

Preferably, the positioning mechanism comprises a pedestal fixed with the upper side of the base, the pedestal is positioned below the shell, a rectangular positioning block is slidingly arranged on the upper side of the pedestal, a plurality of U-shaped blocks are circumferentially arranged on one half side edge of the shell, and the positioning block is in plug-in matching with the U-shaped blocks.

Preferably, the side edge of the shell is fixedly provided with an annular handle in a matching way, and the annular handle is provided with a notch corresponding to the air port.

Preferably, the rear end of the shell is provided with a bearing box, the rear end of the bearing box, which is close to the shell, is cylindrical and penetrates through the shell, the shell is provided with a round hole corresponding to the bearing box, an annular rubber pad is detachably fixed in the round hole, and the annular rubber pad is coaxially sleeved on the bearing box.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the annular tracks are arranged at the front end and the rear end of the shell, the annular supports are sleeved outside the annular tracks in a sliding manner, and the annular tracks and the annular supports can be fixedly connected through the fixing pieces, so that the rotation adjustment of the shell, namely the adjustment of the direction of the air opening, can be realized, the flexible adjustment of various angles can be satisfied, the device has higher practicability, is convenient and fast to integrally operate, meanwhile, the height of the integral device can be effectively reduced, the occupied space can be effectively reduced, the transportation efficiency can be improved, and meanwhile, the good shock absorption and protection effects can be realized under the variable load and variable speed working conditions by arranging the annular rubber pads.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

FIG. 1 is a first isometric view of a centrifugal fan according to the present utility model;

FIG. 2 is a second axial view of a centrifugal fan according to the present utility model;

FIG. 3 is a side view of a centrifugal fan according to the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of a ring rail and a ring bracket of a centrifugal fan according to the present utility model;

fig. 6 is a cross-sectional view of a casing of a centrifugal fan according to the present utility model.

In the figure: 1. a housing; 2. an endless track; 3. an annular bracket; 4. a base; 5. a suction inlet; 6. an air port; 7. a bolt; 8. a first round hole; 9. a second round hole; 10. a pedestal; 11. a positioning block; 12. a U-shaped block; 13. an annular handle; 14. a bearing housing; 15. and a ring-shaped rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 6, a centrifugal fan includes a casing 1, the casing 1 having a cylindrical shape with both ends of the cylinder facing horizontal ends. The annular rail 2 is coaxially fixed at the front end and the rear end of the casing 1, the annular rail 2 is sleeved with the annular bracket 3 in a sliding manner, the annular bracket 3 plays a role in stabilizing, limiting and supporting the annular rail 2, the annular rail 2 can circumferentially rotate on the annular bracket 3, and the casing 1 can circumferentially rotate and adjust on site. The annular track 2 is fixedly connected with the annular support 3 through a fixing piece, a base 4 fixed with the annular support 3 is arranged at the bottom of the shell 1, and the base 4 plays a role in stable support. The base 4 is provided with a positioning mechanism for positioning the casing 1, and the positioning mechanism is used for positioning the casing 1.

For the above example, it should be appreciated by those skilled in the art that in implementing the above technical solution, the base 4 is provided with a buffer mechanism, i.e. the bottom is vertically provided with a plurality of buffer springs, and the base 4 has not only the effect of stable support but also the effect of buffering vibration.

As a technical optimization scheme of the utility model, the front end of the shell 1 is provided with the suction inlet 5, and the suction inlet 5 is the suction inlet of the shell 1. The suction inlet 5 is coaxially arranged at the center of the annular track 2, and the annular track 2 does not block the suction inlet 5.

As a technical optimization scheme of the utility model, the side edge of the shell 1 is fixedly provided with the air port 6, the air port 6 is rectangular and cylindrical, and the air port 6 is the air outlet of the shell 1. The tuyere 6 is located between the two annular rails 2, and the two annular rails 2 do not cause obstruction to the tuyere 6.

As a technical optimization scheme of the utility model, the fixing piece comprises a plurality of bolts 7, the annular track 2 is provided with a plurality of first round holes 8, the annular support 3 is provided with a plurality of second round holes 9, the positions of the plurality of first round holes 8 and the plurality of second round holes 9 are aligned, and the bolts 7 pass through the aligned first round holes 8 and the aligned second round holes 9 and are in threaded connection with nuts. The annular support 3 and the annular track 2 can be fixed by using the matching of the bolts 7 and the nuts, the annular track 2 can be subjected to multi-angle rotation adjustment, and after the rotation adjustment, the alignment of a plurality of first round holes 8 of the annular track 2 and a plurality of second round holes 9 of the annular support 3 is ensured.

For the above example, it should be understood by those skilled in the art that, in implementing the above technical solution, the fixing of the annular bracket 3 and the annular rail 2 is not limited to using the bolt 7 and the nut, but the bolt 7 and the nut may be replaced by a bolt and a pin block, so that the fixing of the annular bracket 3 and the annular rail 2 is also achieved.

For the above example, it should be appreciated by those skilled in the art that in implementing the above technical solution, the number of the first round holes 8 may be the same as the number of the second round holes 9, or may be less than the number of the second round holes 9.

As a technical optimization scheme of the utility model, the positioning mechanism comprises a pedestal 10 fixed with the upper side of the base 4, the pedestal 10 is positioned below the machine shell 1, a rectangular positioning block 11 is slidingly arranged on the pedestal 10, the rectangular positioning block 11 and the pedestal 10 slide in a damping way, and the rectangular positioning block 11 can be integrally pulled out. A plurality of U-shaped blocks 12 are arranged around one half side edge of the shell 1, and the positioning blocks 11 are in plug-in matching with the U-shaped blocks 12. After the positioning block 11 is inserted into the U-shaped block 12, the positioning block plays a role in positioning the casing 1.

As a technical optimization scheme of the utility model, the side edge of the shell 1 is fixedly provided with the annular handle 13 in a matching way, the annular handle 13 is provided with a notch corresponding to the air port 6, and the shell 1 can be rotatably adjusted through the annular handle 13.

As a technical optimization scheme of the utility model, the rear end of the shell 1 is provided with the bearing box 14, and the bearing box 14 and the base 4 are fixedly supported by a supporting seat. The rear end that bearing box 14 is close to casing 1 is cylindricly and runs through casing 1, and casing 1 is equipped with the round hole that corresponds with bearing box 14, and can dismantle in the round hole and be fixed with cyclic annular rubber pad 15, and cyclic annular rubber pad 15 coaxial sleeve establishes on bearing box 14, and cyclic annular rubber pad 15 can play effective seal, also plays the effect of buffering vibration simultaneously.

For the above example, it will be appreciated by those skilled in the art that in carrying out the above technical solution, the bearing housing 14 is provided with a motor at one end and an impeller at the other end, the impeller being coaxially arranged within the casing 1, the motor driving the impeller through the bearing housing 14.

In the utility model, the working principle of the device is as follows:

after the device is assembled, the position and the orientation of the air port 6 can be adjusted on site, namely the machine shell 1 is rotated. When the position orientation of the tuyere 6 needs to be adjusted, a plurality of bolts 7 are taken out, the adjusting casing 1 is rotated through the annular handle 13, the annular rail 2 is rotated on the annular support 3, after the annular rail 2 is rotated to a determined position, a plurality of first round holes 8 of the annular rail 2 are aligned with a plurality of second round holes 9 of the annular support 3, at the moment, a U-shaped block 12 is aligned with the positioning block 11, the positioning block 11 is inserted into the U-shaped block 12, and the casing 1 is temporarily positioned. And then a plurality of bolts 7 are inserted in a matching way and are screwed by nuts, so that the casing 1 can be integrally fixed, and the direction adjustment of the air port 6 is completed. Can meet the flexible adjustment of various angles, has higher practicality, and the whole simple operation.

Meanwhile, when the air port is required to be transported, the shell 1 can be rotated, the air port 6 faces to the side position, the height of the whole device is effectively reduced, the air port 6 is located in the space range of the base 4, the occupation of the space is effectively reduced, the air port is convenient to transport, and the use of packaging materials is reduced.

And when the casing 1 is rotated, the annular rubber pad 15 does not affect the rotation operation, and can package air tightness. When the device is used, the annular rubber pad 15 can also play a role in buffering vibration under the working condition of variable load and variable speed, and the damping effect of the base 4 is matched, so that a good damping protection effect is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a centrifugal fan, includes casing (1), its characterized in that, casing (1) is cylindricly, and both ends all coaxial fixed with annular rail (2) around casing (1), and annular rail (2) outside slip cap is equipped with annular support (3), and annular rail (2) and annular support (3) pass through mounting fixed connection, and casing (1) bottom is equipped with base (4) fixed with annular support (3), is equipped with the positioning mechanism who is used for fixing a position casing (1) on base (4).

2. A centrifugal fan according to claim 1, wherein the front end of the housing (1) is provided with a suction inlet (5), and the suction inlet (5) is coaxially arranged at the center of the annular track (2).

3. A centrifugal fan according to claim 1, wherein the side of the casing (1) is fixedly provided with a tuyere (6), the tuyere (6) is rectangular and cylindrical, and the tuyere (6) is located between the two annular rails (2).

4. A centrifugal fan according to claim 1, wherein the fixing member comprises a plurality of bolts (7), the annular rail (2) is provided with a plurality of first round holes (8), the annular bracket (3) is provided with a plurality of second round holes (9), the plurality of first round holes (8) and the plurality of second round holes (9) are aligned, and the bolts (7) pass through the aligned first round holes (8) and second round holes (9) and are connected with nuts in a threaded manner.

5. The centrifugal fan according to claim 1, wherein the positioning mechanism comprises a pedestal (10) fixed with the upper side of the base (4), the pedestal (10) is located below the machine shell (1), a rectangular positioning block (11) is slidably arranged on the upper side of the pedestal (10), a plurality of U-shaped blocks (12) are circumferentially arranged on one half side edge of the machine shell (1), and the positioning block (11) is in plug-in matching with the U-shaped blocks (12).

6. A centrifugal fan according to claim 3, wherein the side edge of the casing (1) is fixedly provided with an annular handle (13), and the annular handle (13) is provided with a notch corresponding to the tuyere (6).

7. The centrifugal fan according to claim 1, wherein the rear end of the housing (1) is provided with a bearing box (14), the rear end of the bearing box (14) close to the housing (1) is cylindrical and penetrates through the housing (1), the housing (1) is provided with a round hole corresponding to the bearing box (14), an annular rubber pad (15) is detachably fixed in the round hole, and the annular rubber pad (15) is coaxially sleeved on the bearing box (14).