CN219911247U - Low-noise impeller for centrifugal fan - Google Patents

Abstract

The utility model discloses a low-noise impeller for a centrifugal fan, which comprises a motor fixedly connected to a shell, wherein a diamond column is fixedly connected to the output end of the motor, a fixed disc is fixedly connected to one end, close to the motor, of the diamond column, impeller blades are slidably connected to the diamond column, a plurality of blades are arranged on the impeller blades, the blades are all arc-shaped, a thread groove is formed in one side wall, far away from the motor, of the diamond column, a thread column is connected in the thread groove in a threaded manner, an operating disc is fixedly connected to the thread column, a plurality of sliding ports are formed in the operating disc, sliding columns are slidably connected in the sliding ports, a plurality of clamping interfaces are formed in one side wall, close to the operating disc, of the impeller blades, and the sliding columns are respectively and slidably connected in the clamping interfaces. The advantages are that: the stability and the safety of the connection work are effectively guaranteed, so that the device can safely work.

Description

Low-noise impeller for centrifugal fan

Technical Field

The utility model relates to the technical field related to centrifugal fans, in particular to a low-noise impeller for a centrifugal fan.

Background

The centrifugal fan is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, is a driven fluid machine, and is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air induction of boilers and industrial kilns. For centrifugal fan, impeller is a very important part, centrifugal fan passes through motor control impeller rotation, accomplish air treatment work then, but current device is carrying out the connection work of impeller and motor, in order to make the motor drive impeller rotation that can be smooth, need set up corresponding fixture block and draw-in groove, centrifugal fan's rotation rate is very big, can cause very big pressure to small-size fixture block and draw-in groove, make the connection of motor and impeller very appear damaging the problem very easily then, for this reason, we propose a centrifugal fan with low noise impeller to solve above-mentioned problem.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a low-noise impeller for 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 is with low noise impeller, includes the motor of fixed connection on the shell, fixedly connected with diamond column on the output of motor, the one end fixedly connected with fixed disk that diamond column is close to the motor, sliding connection has the impeller piece on the diamond column, be equipped with a plurality of blades on the impeller piece, a plurality of the blade all is the arc setting, be equipped with the screw thread groove on the lateral wall that the motor was kept away from to the diamond column, screw thread groove female connection has the screw thread post, fixedly connected with operation panel on the screw thread post, be equipped with a plurality of sliding mouths on the operation panel, a plurality of equal sliding connection has the sliding column in the sliding mouths, be equipped with a plurality of draw-in interfaces on the lateral wall that the impeller piece is close to the operation panel, a plurality of sliding column sliding connection sets up in a plurality of draw-in interfaces respectively, one side that the operation panel is close to the impeller piece is equipped with auxiliary structure.

In order to achieve the above object, the present utility model adopts the following technical scheme: the auxiliary structure comprises an extrusion ring, the extrusion ring is rotationally connected to the diamond-shaped columns, a plurality of sliding columns penetrate through the extrusion ring, a plurality of auxiliary grooves are formed in one side wall of the extrusion ring, which is close to the operation panel, an auxiliary rod is slidably connected to the auxiliary grooves, the auxiliary rod is connected with the inner walls of the auxiliary grooves through a plurality of auxiliary springs, and the auxiliary rods are fixedly connected to the operation panel.

In order to achieve the above object, the present utility model adopts the following technical scheme: the plurality of sliding columns are fixedly connected with a sliding disc at one end far away from the impeller blades, and the sliding disc is connected with the operating disc through a plurality of sliding springs.

In order to achieve the above object, the present utility model adopts the following technical scheme: the plurality of card interfaces are arranged in a central symmetry mode, and the plurality of sliding ports and the plurality of sliding columns are matched with the card interfaces.

In order to achieve the above object, the present utility model adopts the following technical scheme: the diamond-shaped column is square, the shape of the impeller blade is matched with that of the diamond-shaped column, and a handle is fixedly connected to one side wall of the operating panel, which is far away from the impeller blade.

The utility model has the advantages that: the user can set up with the help of the cooperation of diamond column and impeller blade for the motor can be stable drive impeller blade and rotate, simultaneously with the help of the setting of a plurality of slip posts and joint mouth, make screw thread post and the operation panel of fixing on diamond column also can drive the impeller blade and rotate, the connection structure is too little and make the condition of pressure too big between so effectually avoiding motor and the impeller blade, the problem of device easy damage has then been avoided, simultaneously with the help of the setting of auxiliary spring isotructure, make the vertical extrusion of impeller blade fix can not receive the influence because of the joint of slip post and joint mouth, very big guarantee the smooth completion of installation work.

Drawings

FIG. 1 is a front cross-sectional view of a low noise impeller for a centrifugal fan according to the present utility model;

FIG. 2 is a partial side sectional view of a low noise impeller for a centrifugal fan according to the present utility model;

fig. 3 is an enlarged view of the structure a of fig. 2.

In the figure: 1 shell, 2 motors, 3 diamond-shaped columns, 4 fixed discs, 5 impeller blades, 6 blades, 7 thread grooves, 8 thread columns, 9 operation discs, 10 sliding ports, 11 sliding columns, 12 clamping ports, 13 extrusion rings, 14 auxiliary grooves, 15 auxiliary rods, 16 auxiliary springs, 17 sliding discs, 18 sliding springs and 19 handles.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-3, a low-noise impeller for a centrifugal fan, which comprises a motor 2 fixedly connected to a shell 1, a diamond column 3 is fixedly connected to the output end of the motor 2, one end of the diamond column 3 close to the motor 2 is fixedly connected with a fixed disc 4, an impeller blade 5 is slidably connected to the diamond column 3, the diamond column 3 is provided with corners, the impeller blade 5 can be driven to rotate by means of the corners with large area, the stability of the traditional connecting piece with too small pressure is avoided, the device is effectively prevented from being damaged, the diamond column 3 is square, the shape of the impeller blade 5 is matched with the diamond column 3, the square four sides are uniformly distributed, the stress is even more uniform, so that the impeller blade 5 is not easily damaged during operation, a plurality of blades 6 are arranged on the impeller blade 5, all in an arc shape, the blade 6 is in an arc shape, the noise is small during rotation, a user is facilitated to perform low-noise operation, the diamond column 3 is provided with a thread groove 7 on one side wall far away from the motor 2, the thread groove 7 is internally screwed with a thread column 8, an operation disc 9 is fixedly connected to the thread column 8, one side wall of the operation disc 9 is far away from the impeller blade 5, the operation disc 9 is fixedly connected with one side wall of the handle 9, the operation disc is fixedly connected with a plurality of handles 19, the operation disc is slidably connected with a plurality of handles 11 through the handle 9, and a plurality of operation discs 11 are slidably connected with a plurality of handles 11 through a sliding disc 11, and a plurality of operation disc 11 are slidably connected with a plurality of handles 11, and a plurality of operation discs 11 are slidably connected with a jack 11, and a jack is conveniently to be slidably connected with a jack, and a jack 18, and a jack is connected through a jack, and a jack; the impeller blade 5 is close to a side wall of the operation panel 9 and is provided with a plurality of clamping ports 12, a plurality of sliding columns 11 are respectively arranged in the plurality of clamping ports 12 in a sliding way, so that the contact area between the diamond-shaped columns 3 and the impeller blade 5 can be further enlarged, the pressure is smaller when the rotation operation is performed, the device is safer, the plurality of clamping ports 12 are arranged in a central symmetry way, a plurality of sliding ports 10 and a plurality of sliding columns 11 are matched with the clamping ports 12, the plurality of clamping ports 12 are aligned with the sliding columns 11 more easily due to the arrangement, the clamping operation is completed better, an auxiliary structure is arranged on one side of the operation panel 9 close to the impeller blade 5, the auxiliary structure comprises a squeezing ring 13, the squeezing ring 13 is rotationally connected to the diamond-shaped columns 3, the plurality of sliding columns 11 are arranged through the squeezing ring 13, a plurality of auxiliary grooves 14 are arranged on one side wall of the squeezing ring 13 close to the operation panel 9, the auxiliary rods 15 are slidably connected in the auxiliary grooves 14, the auxiliary rods 15 are connected with the inner walls of the auxiliary grooves 14 through the auxiliary springs 16, the auxiliary rods 15 are fixedly connected to the operation panel 9, and when the operation panel 9 is rotated to be close to the impeller blades 5 for extrusion fixing work, the sliding columns 11 are possibly misaligned with the clamping interfaces 12 when extrusion is completed, so that the operation panel 9 can be excessively close to the impeller blades 5 to a certain extent or excessively close to the impeller blades 5 by means of the elasticity of the auxiliary springs 16, the operation panel 9 can be selectively rotated to a proper angle, the sliding columns 11 can be aligned with the clamping interfaces 12, and meanwhile, the clamping work can be smoothly completed by means of the elasticity of the auxiliary springs 16.

In the use process, the impeller blades 5 are sleeved on the diamond-shaped columns 3, so that the impeller blades 5 are propped against the fixed disc 4, the diamond-shaped columns 3 can drive the impeller blades 5 to rotate when rotating due to the corners of the diamond-shaped columns 3, and each side of the diamond-shaped columns 3 can drive the impeller blades 5 to rotate from inside, so that compared with the traditional small clamping block structure, the contact surface is greatly increased, the pressure born by the connecting parts of the diamond-shaped columns 3 and the impeller blades 5 is greatly reduced, the safety of the device is greatly improved, then the user side can rotate the operating disc 9 through the handle 19, then the threaded columns 8 are in threaded connection with the threaded grooves 7, when the operating disc 9 rotates to be close to the impeller blades 5, the extrusion ring 13 can be pushed to be attached to the impeller blades 5 through the auxiliary rod 15 and the auxiliary spring 16, then the axial extrusion fixing work of the impeller blades 5 is completed by matching with the fixing disc 4, meanwhile, the auxiliary spring 16 is arranged, so that a user can excessively or excessively rotate the operating disc 9 within a certain range, then a plurality of sliding columns 11 are aligned with corresponding clamping interfaces 12, the sliding disc 17 can push a plurality of sliding columns 11 to be stably inserted into the clamping interfaces 12 by means of the elasticity of the sliding spring 18, when the diamond-shaped columns 3 are operated and rotated by the motor 2, the impeller blades 5 can be driven to rotate by means of the sliding columns 11, the pressure between the contact surfaces of the diamond-shaped columns 3 and the impeller blades 5 is further reduced, the safety of the device is further maintained, then the user can start the motor 2, and the low-noise work can be smoothly completed by means of the blades 6 which are arranged in an arc shape on the impeller blades 5.

Claims (5)

1. The utility model provides a centrifugal fan is with low noise impeller, includes motor (2) of fixed connection on shell (1), its characterized in that, fixedly connected with diamond column (3) on the output of motor (2), diamond column (3) are close to one end fixedly connected with fixed disk (4) of motor (2), sliding connection has impeller blade (5) on diamond column (3), be equipped with a plurality of blades (6) on impeller blade (5), a plurality of blade (6) all are the arc setting, be equipped with thread groove (7) on one lateral wall that motor (2) were kept away from to diamond column (3), thread groove (7) internal thread connection has screw thread post (8), fixedly connected with operation panel (9) on screw thread post (8), be equipped with a plurality of sliding connection mouth (10) on operation panel (9), a plurality of equal sliding connection has sliding column (11) in sliding connection mouth (10), be equipped with a plurality of card interfaces (12) on the lateral wall that impeller blade (5) are close to operation panel (9), a plurality of card interfaces (11) are close to in operation panel (5) respectively.

2. The low-noise impeller for the centrifugal fan according to claim 1, wherein the auxiliary structure comprises an extrusion ring (13), the extrusion ring (13) is rotationally connected to the diamond-shaped columns (3), a plurality of sliding columns (11) are all arranged through the extrusion ring (13), a plurality of auxiliary grooves (14) are formed in one side wall, close to the operating panel (9), of the extrusion ring (13), auxiliary rods (15) are all slidingly connected in the auxiliary grooves (14), the auxiliary rods (15) are connected with the inner walls of the auxiliary grooves (14) through a plurality of auxiliary springs (16), and the auxiliary rods (15) are fixedly connected to the operating panel (9).

3. A low noise impeller for centrifugal fans according to claim 2, characterized in that a plurality of said sliding columns (11) are fixedly connected with a sliding disc (17) at their ends remote from the impeller blades (5), said sliding disc (17) being connected with the operating disc (9) by a plurality of sliding springs (18).

4. A low noise impeller for centrifugal fans according to claim 3, characterized in that the plurality of said card interfaces (12) are arranged in a central symmetry, and the plurality of said sliding ports (10) and the plurality of sliding posts (11) are arranged in a matching manner with the card interfaces (12).

5. The low-noise impeller for the centrifugal fan according to claim 1, wherein the diamond-shaped columns (3) are square, the shape of the impeller blades (5) is matched with that of the diamond-shaped columns (3), and a handle (19) is fixedly connected to one side wall, far away from the impeller blades (5), of the operating panel (9).