CN215444492U

CN215444492U - Single air inlet centrifugal fan of high stability

Info

Publication number: CN215444492U
Application number: CN202122081591.8U
Authority: CN
Inventors: 鲁鹏
Original assignee: Weihai Hongri Environmental Protection Equipment Co ltd
Current assignee: Weihai Hongri Environmental Protection Equipment Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-07
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a high-stability single-air-inlet centrifugal fan which comprises a frame plate, wherein the middle part of the top end of the frame plate is fixedly connected with a motor, the driving end of the motor penetrates through the left end of a fan shell and is fixedly connected to one end of a transmission shaft, the other end of the transmission shaft is provided with a cross groove, a shaft body of the transmission shaft is in threaded connection with a locking nut, the right end of the transmission shaft is connected with a rotating shaft through the locking nut, and the front part and the rear part of the bottom end of the frame plate are fixedly connected with first supporting plates. According to the utility model, the cross-shaped insert block of the rotating shaft is inserted into the cross-shaped groove of the transmission shaft, and then the transmission shaft and the rotating shaft are connected by rotating the locking nut, so that the stability of the rotating shaft during rotation is improved, the rotating shaft is convenient to disassemble, assemble and clean, the angle of the air outlet of the fan shell is convenient to adjust by arranging the shell base, the use is flexible, the stability of the shell is improved, and the fan shell is worthy of great popularization.

Description

Single air inlet centrifugal fan of high stability

Technical Field

The utility model relates to the field of centrifugal fans, in particular to a high-stability single-air-inlet centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial kilns, cooling and ventilation of air conditioning equipment and household electrical equipment, drying and sorting of grains, air supply of wind tunnels and inflation and propulsion of air cushion boats and the like.

Chinese patent document CN209195746U discloses a high-stability single air inlet centrifugal fan, which belongs to the field of centrifugal fans, the high-stability single air inlet centrifugal fan comprises a casing, locate the inside impeller of casing, the pivot that is connected with the impeller, locate the motor that is used for driving the pivot rotation of casing outside one side, still including the pivot support of locating casing one side, locate the motor support of casing opposite side, the motor is fixed on the motor support, the one end of pivot extends to the outside of casing and is connected with the pivot support, the other end of pivot extends to the outside of casing and is connected with the power take off end of motor, the single air intake has been seted up on the lateral wall that is close to the pivot support on the casing. The single air inlet centrifugal fan of high stability that this patent was disclosed can improve the stability of impeller and pivot when rotatory, effectively reduces vibrations and noise, extension fan life, but its dismouting to the impeller is inconvenient, the washing of inconvenient impeller.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-stability single-air-inlet centrifugal fan.

In order to achieve the purpose, the utility model adopts the following technical scheme: a high-stability single-air-inlet centrifugal fan comprises a frame plate, wherein the middle part of the top end of the frame plate is fixedly connected with a motor, the driving end of the motor penetrates through the left end of the fan shell and is fixedly connected with one end of the transmission shaft, the other end of the transmission shaft is provided with a cross groove, the shaft body of the transmission shaft is in threaded connection with a locking nut, the right end of the transmission shaft is connected with the rotating shaft through the locking nut, the front part and the rear part of the bottom end of the frame plate are fixedly connected with first supporting plates, the bottom of one end of the outer side of each first supporting plate is fixedly connected with a stabilizing plate, the right side of one end of the inner side of the stabilizing plate is respectively and fixedly connected with the bottoms of the front end and the rear end of the second supporting plate, the top end of the second supporting plate is fixedly connected with a fixing ring which is connected with the fan shell through a bolt, the fan shell is characterized in that a shell base is arranged at the bottom end of the fan shell, and a groove is formed in the top end of the shell base.

As a further description of the above technical solution:

the shaft body of the rotating shaft is fixedly connected with a plurality of fan blades.

As a further description of the above technical solution:

the left end fixedly connected with cross inserted block of pivot.

As a further description of the above technical solution:

the front and the rear of the right end of the second supporting plate are fixedly connected with reinforcing plates which are fixedly connected with the stabilizing plate.

As a further description of the above technical solution:

and a plurality of mounting holes are formed in the outer ring of the left end of the fixing ring.

As a further description of the above technical solution:

the front end of the fan shell is provided with an air outlet, and an air outlet cover is arranged at the position, corresponding to the air outlet, of the front end of the fan shell.

As a further description of the above technical solution:

and a slip ring is fixedly connected to the position, corresponding to the groove, of the outer diameter of the fan shell.

As a further description of the above technical solution:

and a buffer gasket is arranged on the inner surface of the cross groove.

The utility model has the following beneficial effects:

1. according to the fan cleaning device, the cross-shaped inserting block of the rotating shaft is inserted into the cross-shaped groove of the driving shaft, then the driving shaft and the rotating shaft are connected by rotating the locking nut, the stability of the rotating shaft during rotation is improved, the driving shaft and the rotating shaft are driven to rotate by the motor, so that the fan blades are driven to rotate, the fan starts to work, the fan blades can generate dust after the fan works for a long time, when the fan blades are cleaned, the locking nut only needs to be loosened, and the rotating shaft is pulled out of the driving shaft, so that the fan cleaning device is convenient to clean.

2. According to the centrifugal fan, the fixing ring is separated from the fan shell by detaching the bolts on the fixing ring, and the slip ring rotates in the groove of the fan shell base by rotating the slip ring, so that the angle of the air outlet of the fan shell can be adjusted, the use is flexible, meanwhile, the fan shell base improves the stability of the fan shell, reduces the vibration generated during the work of the fan, prolongs the service life of the centrifugal fan, and is worth popularizing.

Drawings

FIG. 1 is a perspective view of a high stability single intake centrifugal fan according to the present invention;

fig. 2 is a schematic partial structural view of a high-stability single-air-inlet centrifugal fan provided by the utility model.

Illustration of the drawings:

1. a fan housing; 2. an air outlet cover; 3. a motor; 4. a frame plate; 5. a first support plate; 6. an air outlet; 7. a stabilizing plate; 8. a groove; 9. a housing base; 10. a second support plate; 11. a reinforcing plate; 12. a rotating shaft; 13. a fan blade; 14. a fixing ring; 15. mounting holes; 16. a slip ring; 17. a drive shaft; 18. locking the nut; 19. a cross groove; 20. a cross-shaped inserting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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 invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, one embodiment of the present invention is provided: a high-stability single-air-inlet centrifugal fan comprises a frame plate 4, a motor 3 is fixedly connected to the middle of the top end of the frame plate 4, the driving end of the motor 3 penetrates through the left end of a fan shell 1 and is fixedly connected to one end of a transmission shaft 17, a cross groove 19 is formed in the other end of the transmission shaft 17, a locking nut 18 is in threaded connection with the shaft body of the transmission shaft 17, the right end of the transmission shaft 17 is connected with a rotating shaft 12 through the locking nut 18, a cross insert 20 of the rotating shaft 12 is inserted into the cross groove 19 of the transmission shaft 17, then the transmission shaft 17 and the rotating shaft 12 are connected through rotating the locking nut 18, the stability of the rotating shaft 12 during rotation is improved, the transmission shaft 17 and the rotating shaft 12 are driven to rotate through the motor 3, so that fan blades 13 are driven to rotate, the fan starts to work, the fan blades 13 can generate dust after the fan works for a long time, when the fan blades 13 are cleaned, only the locking nut 18 needs to be loosened, the rotating shaft 12 is pulled out of the transmission shaft 17, the front and the rear parts of the bottom end of the frame plate 4 are fixedly connected with a first supporting plate 5, the bottom part of one end of the outer side of the first supporting plate 5 is fixedly connected with a stabilizing plate 7, the right side of one end of the inner side of the stabilizing plate 7 is fixedly connected with the bottom parts of the front end and the rear end of a second supporting plate 10, the top end of the second supporting plate 10 is fixedly connected with a fixing ring 14, the fixing ring 14 is connected with the fan shell 1 through bolts, the bottom end of the fan shell 1 is provided with a shell base 9, the top end of the shell base 9 is provided with a groove 8, the fixing ring 14 is separated from the fan shell 1 through removing the bolts on the fixing ring 14, the sliding ring 16 is rotated in the groove 8 of the shell base 9 through rotating the sliding ring 16, so that the air outlet angle of the fan shell 1 can be adjusted, the use is flexible, meanwhile, the shell base 9 improves the stability of the fan shell 1 and reduces the vibration generated when the fan works, the service life of the centrifugal fan is prolonged.

The fan blades 13 are fixedly connected to the shaft body of the rotating shaft 12, the cross-shaped insert block 20 is fixedly connected to the left end of the rotating shaft 12, the cross-shaped insert block 20 of the rotating shaft 12 is inserted into the cross-shaped groove 19 of the transmission shaft 17, then the transmission shaft 17 and the rotating shaft 12 are connected by rotating the locking nut 18, the stability of the rotating shaft 12 during rotation is improved, the reinforcing plate 11 is fixedly connected to the front side and the rear side of the right end of the second supporting plate 10, the reinforcing plate 11 is fixedly connected with the stabilizing plate 7, the stability is improved, the fan shell 1 is prevented from shaking, the outer ring at the left end of the fixing ring 14 is provided with a plurality of mounting holes 15, the fixing ring 14 is convenient to disassemble and assemble by inserting bolts into the mounting holes 15, the air outlet 6 is arranged at the front end of the fan shell 1, the air outlet cover 2 is arranged at the position, corresponding to the air outlet 6, and the position corresponding to the groove 8, of the outer diameter of the fan shell 1 is fixedly connected with the sliding ring 16, the sliding ring 16 rotates in the groove 8 of the chassis base 9 by rotating the sliding ring 16, so that the angle of the air outlet 6 of the fan casing 1 can be adjusted, and the buffer gasket is arranged on the inner surface of the cross groove 19, so that the connection stability between the rotating shaft 12 and the transmission shaft 17 is improved.

The working principle is as follows: firstly, a cross-shaped insert block 20 of a rotating shaft 12 is inserted into a cross-shaped groove 19 of a transmission shaft 17, then the transmission shaft 17 and the rotating shaft 12 are connected by rotating a locking nut 18, the stability of the rotating shaft 12 during rotation is improved, the transmission shaft 17 and the rotating shaft 12 are driven to rotate by a motor 3, so that fan blades 13 are driven to rotate, the fan starts to work, the fan blades 13 generate dust after the fan works for a long time, when the fan blades 13 are cleaned, only the locking nut 18 needs to be turned and loosened to pull the rotating shaft 12 out of the transmission shaft 17, a fixing ring 14 is separated from a fan shell 1 by removing a bolt on the fixing ring 14, a slip ring 16 is rotated to rotate in a groove 8 of a shell base 9, so that the air outlet angle of the fan shell 1 can be adjusted, the use is flexible, meanwhile, the shell base 9 improves the stability of the fan shell 1, and reduces the vibration generated during the work of the fan, the service life of the centrifugal fan is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a single air inlet centrifugal fan of high stability, includes frame plate (4), its characterized in that: the top middle part of the frame plate (4) is fixedly connected with a motor (3), the driving end of the motor (3) penetrates through the left end of the fan shell (1) and is fixedly connected with one end of a transmission shaft (17), the other end of the transmission shaft (17) is provided with a cross groove (19), a locking nut (18) is in threaded connection with the shaft body of the transmission shaft (17), the right end of the transmission shaft (17) is connected with a rotating shaft (12) through the locking nut (18), the front and the rear parts of the bottom end of the frame plate (4) are both fixedly connected with a first supporting plate (5), the bottom part of one end of the outer side of the first supporting plate (5) is both fixedly connected with a stabilizing plate (7), the right side of one end of the inner side of the stabilizing plate (7) is respectively and fixedly connected with the bottom parts of the front end and the rear end of a second supporting plate (10), and the top end of the second supporting plate (10) is fixedly connected with a fixing ring (14), the fixing ring (14) is connected with the fan shell (1) through a bolt, the bottom end of the fan shell (1) is provided with a shell base (9), and the top end of the shell base (9) is provided with a groove (8).

2. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the shaft body of the rotating shaft (12) is fixedly connected with a plurality of fan blades (13).

3. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the left end of the rotating shaft (12) is fixedly connected with a cross-shaped insert block (20).

4. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the front and the rear of the right end of the second supporting plate (10) are fixedly connected with reinforcing plates (11), and the reinforcing plates (11) are fixedly connected with the stabilizing plate (7).

5. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the outer ring of the left end of the fixing ring (14) is provided with a plurality of mounting holes (15).

6. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the front end of the fan shell (1) is provided with an air outlet (6), and an air outlet cover (2) is arranged at the position, corresponding to the air outlet (6), of the front end of the fan shell (1).

7. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the outer diameter of the fan shell (1) corresponds to the position of the groove (8) and is fixedly connected with a sliding ring (16).

8. The single air intake centrifugal fan of high stability of claim 1, characterized in that: the inner surface of the cross groove (19) is provided with a buffer gasket.