Powder conveying centrifugal fan with noise reduction function

Abstract

The utility model belongs to the field of centrifugal fans, and particularly relates to a powder conveying centrifugal fan with a noise reduction function, which comprises an outer fan body. The bottom end of the fan outer main body is fixedly connected with a base, and a detachable filtering mechanism is arranged on the outer side of the fan outer main body; the detachable filtering mechanism comprises a motor, the motor is arranged at the rear end of the fan outer main body, the motor is fixedly connected with the fan outer main body, and the front end of the motor penetrates through the rear end of the fan outer main body to reach the interior of the fan outer main body; through the design of the detachable filtering mechanism, the function of reducing noise is achieved, and the problems that an existing centrifugal fan is not provided with an assembly capable of being used for reducing noise, large noise can be generated due to high-speed rotation when the centrifugal fan is started, and if noise reduction treatment is not conducted on the noise, the noise cannot be reduced are solved. The problem that when a worker works in a noisy environment for a long time, ears of the worker are prone to being damaged is solved, and noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan field, concretely is a kind of centrifugal fan with noise reduction for powder conveying. BACKGROUND

[0002] Centrifugal fan is worked according to the principle of kinetic energy conversion for potential energy, gas is accelerated using high-speed rotating impeller, then deceleration changes flow direction, makes kinetic energy conversion into potential energy (pressure).

[0003] The existing centrifugal fan for powder conveying can refer to the powder conveying fan with the application number CN201920526786.9 for specific reference, the powder conveying fan is used to convey crushed wax material into material tower, compared with the traditional structure conveying fan, the material conveying efficiency is obviously improved, and the energy consumption is reduced, and the noise during equipment operation is obviously reduced, the working environment of production workshop is improved, and the conveying fan structure is simple and easy to maintain, continuous production can be realized.

[0004] The above-mentioned centrifugal fan does not have a component for noise reduction, when the centrifugal fan starts, due to high-speed rotation, it will produce a lot of noise, if the noise is not reduced, the workers will be damaged in the noisy environment for a long time, therefore, a centrifugal fan with noise reduction for powder conveying is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the prior art, the existing centrifugal fan does not have a component for noise reduction, when the centrifugal fan starts, due to high-speed rotation, it will produce a lot of noise, if the noise is not reduced, the workers will be damaged in the noisy environment for a long time, therefore, a centrifugal fan with noise reduction for powder conveying is proposed to solve the above-mentioned problems.

[0006] The utility model solves the technical scheme that the utility model discloses a kind of centrifugal fan with noise reduction for powder conveying, including fan outer main body;The bottom end of the fan outer main body is fixedly connected with base, and the outer side of the fan outer main body is provided with removable filter mechanism.

[0007] The removable filtering mechanism comprises a motor, the motor is arranged at the rear end of the fan outer body, the motor is fixedly connected with the fan outer body, the front end of the motor penetrates through the rear end of the fan outer body to the inside of the fan outer body, and the front end of the motor is fixedly connected with an impeller, and the inner wall of the fan outer body is fixedly connected with a noise reduction block.

[0008] Preferably, one side of the fan outer body is fixedly connected with a suction pipe, the other side of the fan outer body is fixedly connected with a conveying pipe, and the suction pipe and the conveying pipe also penetrate through the inside of the fan outer body.

[0009] Preferably, the right end of the suction pipe is provided with a first fixed block, the front and rear ends of the first fixed block are also fixedly connected with fixed seats, the outer side of the fixed seat is sleeved with a rotating block, and the fixed seat is rotatably connected with the rotating block.

[0010] Preferably, the inside of the rotating block is inserted with one end of an insertion block, the rotating block is slidably connected with the insertion block, the other end of the insertion block is inserted into the inside of a second fixed block, the second fixed block is slidably connected with the insertion block, and one end of the second fixed block is fixedly connected with the suction pipe.

[0011] Preferably, the upper and lower ends of the inside of the rotating block are also fixedly connected with return springs, the other ends of the return springs are fixedly connected with the insertion block, and the inside of the first fixed block is fixedly connected with a filter plate.

[0012] Preferably, the upper and lower ends of one end of the insertion block are also fixedly connected with one end of a sliding block, the upper and lower ends of the rotating block are also provided with sliding grooves, the other end of the sliding block is inserted into the inside of the sliding groove, and the sliding block is slidably connected with the sliding groove.

[0013] The utility model discloses the beneficial effect lies in:

[0014] 1. The utility model discloses the structural design of the noise reduction block, realized the function that can reduce noise, solved the existing centrifugal fan and not set up the component for carrying out the noise reduction, because the centrifugal fan starts, because high -speed rotation, will produce greater noise, if not noise reduction processing, the staff in this noisy environment long -term work, extremely easy to cause staff ear damage problem, reduce the noise.

[0015] 2. The utility model discloses the structural design of the removable filtering mechanism, realized the function that can shield and filter larger particles, solved the centrifugal fan and not set up the component for carrying out the filtering, when carrying out powder delivery, if larger block's powder or sundries are sucked into the inside of centrifugal fan, extremely easy to cause the inside of centrifugal fan to be blocked, thereby increased the later maintenance probability problem, reduce sundries and be sucked into. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0018] Figure 2 It is a first partial cross-sectional structure schematic diagram of the present application;

[0019] Figure 3 It is a second partial cross-sectional structure schematic diagram of the present application;

[0020] Figure 4 It is a Figure 1 enlarged schematic diagram structure schematic diagram of A in the present application;

[0021] Figure 5 It is a Figure 2 structure schematic diagram of the enlarged schematic diagram of B in the present application.

[0022] Figure 6 It is a Figure 2 structure schematic diagram of the enlarged schematic diagram of C in the present application.

[0023] Figure 7 It is a Figure 3 structure schematic diagram of the enlarged schematic diagram of D in the present application.

[0024] In the figure: 1, fan outer main body; 2, base; 10, motor; 11, impeller; 12, noise reduction block; 13, suction pipe; 14, conveying pipe; 15, first fixed block; 16, fixed seat; 17, rotating block; 18, plug-in block; 19, second fixed block; 20, sliding slot; 21, sliding block; 22, filter plate; 23, return spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Please refer to Figures 1-7As shown, a kind of powder conveying centrifugal fan with noise reduction, including fan outer body 1;Fan outer body 1 bottom welding together have base 2, fan outer body 1 outside is provided with removable filter mechanism;

[0027] Removable filter mechanism includes motor 10, motor 10 is set in fan outer body 1 rear end, and motor 10 welding together have fan outer body 1, motor 10 front end passes through fan outer body 1 rear end reaches fan outer body 1 inside, and motor 10 front end welding together have impeller 11, fan outer body 1 inner wall is glued together with noise reduction block 12, noise reduction block 12 is designed with rubber material;

[0028] When working, the motor 10 at the rear end of the fan outer body 1 is started, the impeller 11 inside the fan outer body 1 is driven to rotate, and when the impeller 11 rotates, a large noise will be generated, which will be absorbed and isolated by the noise reduction block 12 on the inner wall of the fan outer body 1, thereby reducing the noise.

[0029] Further, the fan outer body 1 is welded together with the suction pipe 13 on one side, the fan outer body 1 is welded together with the conveying pipe 14 on the other side, and the suction pipe 13 and the conveying pipe 14 are also connected with the inside of the fan outer body 1;

[0030] When working, the impeller 11 rotates, generates suction, and the powder is sucked into the inside of the fan outer body 1 through the suction pipe 13, and when the suction pipe 13 is sucked, the powder will be filtered through the filter plate 22 inside the first fixed block 15, and then discharged through the conveying pipe 14.

[0031] Further, the first fixed block 15 is provided with a first fixed block 15 on the right side of the suction pipe 13, and the first fixed block 15 is also welded together with the fixed seat 16 on the front and rear ends, and the fixed seat 16 is sleeved with the rotating block 17 outside, and the fixed seat 16 is rotatably connected with the rotating block 17, and the inner wall of the rotating block 17 sleeved outside the fixed seat 16 is circular design;

[0032] When working, the rotating block 17 is rotated outward, and the rotating block 17 is rotated along the outside of the fixed seat 16, until the rotating block 17 is completely opened, and then it can be removed.

[0033] Further, the rotating block 17 is inserted with the one end of the plug 18 inside, and the rotating block 17 is slidably connected with the plug 18, and the other end of the plug 18 is inserted into the second fixed block 19, and the plug 18 is slidably connected with the second fixed block 19, and the second fixed block 19 is welded together with the suction pipe 13 on one end, and the plug 18 is square design;

[0034] When working, the plug-in blocks 18 at the front and rear ends are pulled outwards at the same time, driving one end of the plug-in block 18 to move outwards along the inner wall of the rotating block 17, and the other end of the plug-in block 18 moves outwards along the inside of the second fixed block 19, until the other end of the plug-in block 18 completely separates from the inside of the second fixed block 19.

[0035] Further, the upper and lower ends of the rotating block 17 are also welded together with reset springs 23, and the other end of the reset springs 23 is welded together with the plug-in block 18, and the inside of the first fixed block 15 is welded together with the filter plate 22.

[0036] When working, the plug-in block 18 is pulled, at the same time driving the reset spring 23 inside the rotating block 17 to be stretched and lengthened.

[0037] Further, the upper and lower ends of one end of the plug-in block 18 are also welded together with one end of the sliding block 21, and the upper and lower ends of the rotating block 17 are also provided with sliding grooves 20, and the other end of the sliding block 21 is inserted into the sliding groove 20, and the sliding block 21 is slidingly connected with the sliding groove 20, and the sliding block 21 and the sliding groove 20 are both square in design.

[0038] When working, the plug-in block 18 is pulled, driving the sliding block 21 to slide along the inside of the sliding groove 20.

[0039] Working principle: when conveying powder, first start the motor 10 at the rear end of the fan outer body 1, drive the impeller 11 inside the fan outer body 1 to rotate, and when the impeller 11 rotates, it will produce a lot of noise, which will be absorbed and isolated by the noise reduction block 12 on the inner wall of the fan outer body 1, thereby reducing the noise, at the same time, the impeller 11 rotates, generating suction, through the suction pipe 13, the powder is sucked into the fan outer body 1, and when the suction pipe 13 sucks, the powder will be filtered by the filter plate 22 inside the first fixed block 15, and then discharged through the conveying pipe 14.

[0040] When it is necessary to remove the filter for later cleaning and maintenance, first pull the plug-in blocks 18 at the front and rear ends outwards at the same time, drive one end of the plug-in block 18 to move outwards along the inner wall of the rotating block 17, at the same time, the other end of the plug-in block 18 moves outwards along the inside of the second fixed block 19, until the other end of the plug-in block 18 completely separates from the inside of the second fixed block 19, and at the same time, the plug-in block 18 is pulled, driving the reset spring 23 inside the rotating block 17 to be stretched and lengthened, at the same time, the plug-in block 18 is pulled, driving the sliding block 21 at the upper and lower ends of the plug-in block 18 to move outwards along the inner wall of the sliding groove 20, and when the plug-in block 18 is pulled, driving the sliding block 21 to slide along the inside of the sliding groove 20, then the rotating block 17 is rotated outwards, and the rotating block 17 is rotated along the outer side of the fixed seat 16, until the rotating block 17 is completely opened, then it can be removed.

[0041] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A centrifugal fan for powder conveying with noise reduction, comprising a fan outer body (1); characterized in that: The fan outer body (1) bottom fixedly connected with the base (2), the fan outer body (1) outside is provided with removable filter mechanism; The removable filter mechanism includes motor (10), the motor (10) is arranged at the rear end of fan outer body (1), and motor (10) is fixedly connected with fan outer body (1), the motor (10) front end passes through the rear end of fan outer body (1) reaches the inside of fan outer body (1), and motor (10) front end is fixedly connected with impeller (11), the inner wall of fan outer body (1) is fixedly connected with noise reduction block (12).

2. A centrifugal fan for powder conveying with noise reduction according to claim 1, characterized in that: The fan outer body (1) one side is fixedly connected with suction pipe (13), the fan outer body (1) other side is fixedly connected with conveying pipe (14), the suction pipe (13) and conveying pipe (14) are also with the inside of fan outer body (1) and are penetrated.

3. A centrifugal fan for powder conveying with noise reduction according to claim 2, characterized in that: The first fixed block (15) is provided with the right side end of suction pipe (13), the first fixed block (15) front and rear ends are also fixedly connected with fixed seat (16), the fixed seat (16) is rotatably connected with rotating block (17).

4. A centrifugal fan for powder conveying with noise reduction according to claim 3, characterized in that: The rotating block (17) is inserted with the one end of plug block (18) inside, and rotating block (17) is slidably connected with plug block (18), the other end of plug block (18) is inserted in the second fixed block (19) inside, and plug block (18) is slidably connected with second fixed block (19), the second fixed block (19) one end is fixedly connected with suction pipe (13).

5. A centrifugal fan for powder conveying with noise reduction according to claim 4, characterized in that: The rotating block (17) inside up and down both ends are also fixedly connected with reset spring (23), the other end of reset spring (23) is fixedly connected with plug block (18), the first fixed block (15) inside is fixedly connected with filter plate (22).

6. A centrifugal fan for powder conveying with noise reduction according to claim 5, characterized in that: The up and down both ends of one end of plug block (18) are also fixedly connected with the one end of sliding block (21), the rotating block (17) up and down both ends are also provided with sliding slot (20), the other end of sliding block (21) is inserted in sliding slot (20) inside, and sliding block (21) is slidably connected with sliding slot (20).

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