Noise reduction device of dust removal fan

Abstract

The utility model discloses a noise reduction device for a dust removal fan, which belongs to the technical field of fan noise reduction and is characterized by comprising a dust removal fan body, a connecting channel is arranged at the top of the dust removal fan body, an auxiliary mechanism is arranged at the top of the connecting channel, and the auxiliary mechanism comprises a bearing component and an auxiliary noise reduction component. The bearing assembly is arranged at the top of the connecting channel, the auxiliary noise reduction assembly is arranged on the inner side of the bearing assembly, and the bearing assembly and the auxiliary noise reduction assembly are arranged, so that the bearing assembly can store and bear the auxiliary noise reduction assembly, and meanwhile, sound waves generated when the dust removal fan works can be absorbed; and the auxiliary noise reduction assembly can seal a clamping gap in the middle of the bearing assembly, meanwhile, a user can start the auxiliary noise reduction assembly to enhance an internal sound absorption structure of the bearing assembly, the sound absorption effect of welding can be achieved after the bearing assembly is bolted, and therefore the bearing assembly and the auxiliary noise reduction assembly can be disassembled and maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan noise reduction technical field, especially a kind of dust removal fan noise reduction device. BACKGROUND

[0002] Dust removal fan is an important equipment used in industrial ventilation dust removal system, generally including impeller, casing, motor, bearing, air inlet and air outlet etc., it will produce noise in working process, so it is generally used with silencing device.

[0003] The existing dust removal fan when using, it mainly reaches the effect of reducing noise through muffler, and the muffler itself is through the sound-absorbing cotton set inside to absorb and consume sound wave energy, to achieve the effect of reducing noise, but in order to guarantee the effect of reducing noise, the connection of muffler itself is all adopted welding mode, leading to the sound-absorbing cotton in muffler not convenient to replace, so that the user is more cumbersome to maintain muffler, and the existing patent cannot solve, so it is not conducive to the user to use.

[0004] Therefore, a kind of dust removal fan noise reduction device is proposed. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of dust removal fan noise reduction device, to solve the existing dust removal fan when using, it mainly reaches the effect of reducing noise through muffler, and the muffler itself is through the sound-absorbing cotton set inside to absorb and consume sound wave energy, to achieve the effect of reducing noise, but in order to guarantee the effect of reducing noise, the connection of muffler itself is all adopted welding mode, leading to the sound-absorbing cotton in muffler not convenient to replace, so that the user is more cumbersome to maintain muffler, and the existing patent cannot solve, so it is not conducive to the user to use.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of dust removal fan noise reduction device, including dust removal fan body, the top of the dust removal fan body is provided with connection passage, the top of the connection passage is provided with auxiliary mechanism, the auxiliary mechanism includes bearing assembly and auxiliary noise reduction component, the bearing assembly is set in the top of connection passage, the auxiliary noise reduction component is set in the inboard of bearing assembly;

[0007] The bearing assembly includes bearing shell, sound-absorbing cotton, bearing skeleton, inner closed net board and protective cover, the bearing shell is connected in the top of connection passage, the sound-absorbing cotton is clamped in the inboard of bearing shell, the bearing skeleton is clamped in the inboard of sound-absorbing cotton, the inner closed net board is connected in the inboard of bearing shell, and the protective cover is connected in the top of bearing shell.

[0008] Preferably, the auxiliary noise reduction assembly comprises sealing clamping plates fixedly connected to the inner top of the bearing shell and the inner bottom of the protective cover plate respectively, an input pipe is arranged on the right side of the sealing clamping plate, the left side of the input pipe is communicated with the right side of the protective cover plate, and a closing cylinder is threadedly connected to the right side of the protective cover plate.

[0009] Preferably, the top of the sealing clamping plate is provided with an output pipe, the bottom of the outer side of the output pipe is welded to the top of the protective cover plate, and the bottom of the output pipe is inserted into the inner side of the sound-absorbing cotton.

[0010] Preferably, the top of the output pipe is bolted with an output hose, and a transportation pipe is communicated with the right side of the output hose.

[0011] Preferably, the top of the output pipe is bolted with an output hose, and a transportation pipe is communicated with the right side of the output hose.

[0012] Preferably, the outer side of the auxiliary bearing ring is fixedly connected with a protective ring, and the inner side of the protective ring is close to the outer side of the protective cover plate.

[0013] Preferably, the outer side of the bearing shell is in a cylindrical shape, and the inner side of the sound-absorbing cotton is in contact with the outer side of the inner closing net plate.

[0014] Preferably, the bottom of the bearing framework is inserted into the bottom of the inner side of the bearing shell, the top of the bearing framework is inserted into the bottom of the input pipe, and the outer side of the protective cover plate is in a cylindrical shape.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The bearing assembly is arranged, when the dust removal fan noise reduction device is used, the user can combine the bearing assembly, the auxiliary noise reduction assembly, the dust removal fan body and the connecting channel, so that it can accommodate and bear the auxiliary noise reduction assembly, and it can absorb the sound wave produced when the dust removal fan works, so as to reduce the noise of the dust removal fan air outlet.

[0017] 2、The auxiliary noise reduction assembly is arranged, when the dust removal fan noise reduction device is used, the user can inject sealing material in the auxiliary noise reduction assembly, so as to seal the clamping gap in the middle of the bearing assembly, and the user can start the auxiliary noise reduction assembly to enhance the sound absorption structure in the bearing assembly, so that the bearing assembly can achieve the sound absorption effect of welding after being bolted, so that the bearing assembly and the auxiliary noise reduction assembly can be disassembled and maintained. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The overall structural diagram of the dust removal fan noise reduction device in the utility model;

[0019] Figure 2 The structural schematic diagram of the auxiliary mechanism in the utility model;

[0020] Figure 3 The structural schematic diagram of the bearing assembly in the utility model;

[0021] Figure 4 The structural schematic diagram of the auxiliary noise reduction assembly in the utility model;

[0022] Figure 5 The structural schematic diagram of the auxiliary assembly in the utility model.

[0023] In the drawing, 1, dust removal fan body; 2, connecting channel; 3, auxiliary mechanism; 301, bearing assembly; 301a, bearing shell; 301b, sound-absorbing cotton; 301c, bearing framework; 301d, inner closed net plate; 301e, protective cover plate; 302, auxiliary noise reduction assembly; 302a, sealing clamping plate; 302b, input pipe; 302c, output pipe; 302d, output hose; 4, auxiliary assembly; 401, protective sleeve; 402, auxiliary bearing ring; 403, protective ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 A dust removal fan noise reduction device, comprising a dust removal fan body 1, the top of the dust removal fan body 1 is provided with a connecting channel 2, the top of the connecting channel 2 is provided with an auxiliary mechanism 3, the auxiliary mechanism 3 comprises a bearing assembly 301 and an auxiliary noise reduction assembly 302, the bearing assembly 301 is arranged at the top of the connecting channel 2, and the auxiliary noise reduction assembly 302 is arranged at the inner side of the bearing assembly 301.

[0026] The bearing assembly 301 comprises a bearing shell 301a, sound-absorbing cotton 301b, a bearing framework 301c, an inner closed net plate 301d and a protective cover plate 301e, the bearing shell 301a is bolted at the top of the connecting channel 2, the sound-absorbing cotton 301b is clamped at the inner side of the bearing shell 301a, the bearing framework 301c is clamped at the inner side of the sound-absorbing cotton 301b, the inner closed net plate 301d is bolted at the inner side of the bearing shell 301a, and the protective cover plate 301e is bolted at the top of the bearing shell 301a.

[0027] In the embodiment, by setting the bearing shell 301a, the sound-absorbing cotton 301b, the bearing framework 301c, the inner sealing net plate 301d and the protective cover plate 301e, when the dust removal fan noise reduction device is used, the user can combine the bearing shell 301a with the connecting channel 2, so that it can be installed on the top of the dust removal fan body 1 air outlet, and the bearing shell 301a can be bolted with the protective cover plate 301e, so that the bearing shell 301a can fix the sound-absorbing cotton 301b, the bearing framework 301c and the inner sealing net plate 301d on the top of the air outlet, so that the sound wave generated by the dust removal fan is absorbed by the sound-absorbing cotton, and the bearing shell 301a and the protective cover plate 301e can accommodate and fix the sealing clamping plate 302a, the input pipe 302b, the output pipe 302c and the output hose 302d, so as to facilitate subsequent use.

[0028] Specifically, as shown in Figure 2 , Figure 4 , the auxiliary noise reduction assembly 302 includes a sealing clamping plate 302a fixedly connected to the inner top of the bearing shell 301a and the inner bottom of the protective cover plate 301e, respectively. The right side of the sealing clamping plate 302a is provided with an input pipe 302b, and the left side of the input pipe 302b is in communication with the right side of the protective cover plate 301e. The right side of the protective cover plate 301e is threadedly connected with a sealing cylinder.

[0029] Specifically, as shown in Figure 2 , Figure 4 , the top of the sealing clamping plate 302a is provided with an output pipe 302c, and the bottom of the outer side of the output pipe 302c is welded with the top of the protective cover plate 301e. The bottom of the output pipe 302c is inserted with the inner side of the sound-absorbing cotton 301b.

[0030] Specifically, as shown in Figure 2 , Figure 4 , the top of the output pipe 302c is bolted with an output hose 302d, and the right side of the output hose 302d is communicated with a transportation pipe.

[0031] In the embodiment, the sealing material such as vaseline can be injected into the sealing clamping plate 302a through the input pipe 302b before the carrying shell 301a and the protective cover plate 301e are used, so as to seal the gap between the carrying shell 301a and the protective cover plate 301e, so that the carrying shell 301a and the protective cover plate 301e form a sealed channel, so as to ensure that the sound-absorbing cotton can play the maximum role, and the user can inject an appropriate amount of water source into the output pipe 302c through the output hose 302d of the external control device, so that the output pipe 302c can input the water source into the carrying framework 301c, so that the water source can penetrate into the sound-absorbing cotton through the holes on the surface of the carrying framework 301c, so as to enhance the sound-absorbing effect of the sound-absorbing cotton.

[0032] Specifically, as shown in Figure 1 、 5 , the top of the dust removal fan body 1 is provided with an auxiliary assembly 4, the auxiliary assembly 4 includes a protective sleeve 401 clamped on the top of the protective cover plate 301e, and the inner side of the protective sleeve 401 is fixedly connected with an auxiliary carrying ring 402, and the bottom of the auxiliary carrying ring 402 is in contact with the top of the protective cover plate 301e.

[0033] Specifically, as shown in Figure 1 、 5 , the outer side of the auxiliary carrying ring 402 is fixedly connected with a protective ring 403, and the inner side of the protective ring 403 is close to the outer side of the protective cover plate 301e.

[0034] In the embodiment, the protective sleeve 401, the auxiliary carrying ring 402 and the protective ring 403 are matched with each other, so as to protect the connecting member between the carrying shell 301a and the protective cover plate 301e.

[0035] Specifically, as shown in Figure 3 , the outer side of the carrying shell 301a is in a cylindrical shape, and the inner side of the sound-absorbing cotton 301b is in contact with the outer side of the inner closed mesh plate 301d.

[0036] Specifically, as shown in Figure 3 , the bottom of the carrying framework 301c is inserted into the bottom of the inner side of the carrying shell 301a, the top of the carrying framework 301c is inserted into the bottom of the input pipe 302b, and the outer side of the protective cover plate 301e is in a cylindrical shape.

[0037] In the embodiment: by setting the bearing shell 301a, the sound-absorbing cotton 301b, the bearing framework 301c and the protective cover plate 301e, so that the bearing shell 301a, the sound-absorbing cotton 301b, the bearing framework 301c and the protective cover plate 301e cooperate with each other, can absorb the sound wave generated at the air outlet of the dust removal fan body 1, for reducing the noise at the air outlet of the dust removal fan.

[0038] Working principle: first, in reducing the noise at the air outlet of the dust removal fan, in use, the user can combine the bearing shell 301a with the connecting channel 2, so that it can be installed at the top of the air outlet of the dust removal fan body 1, at the same time, the bearing shell 301a can be bolted with the protective cover plate 301e, so that the bearing shell 301a can fix the sound-absorbing cotton 301b, the bearing framework 301c and the inner closed mesh plate 301d at the top of the air outlet, so that the sound wave generated by the dust removal fan is absorbed by the sound-absorbing cotton, and the bearing shell 301a and the protective cover plate 301e can accommodate and fix the sealing clamping plate 302a, the input pipe 302b, the output pipe 302c and the output hose 302d, for subsequent use, before use, the user can inject sealing material such as vaseline into the inside of the sealing clamping plate 302a through the input pipe 302b, for closing the gap between the bearing shell 301a and the protective cover plate 301e, so that the bearing shell 301a and the protective cover plate 301e form a sealed channel, so as to ensure that the sound-absorbing cotton can play the maximum role, at the same time, the user can inject appropriate amount of water source into the inside of the output pipe 302c through the output hose 302d of the external control device, so that the output pipe 302c can input the water source into the inside of the bearing framework 301c, so as to make the water source penetrate into the inside of the sound-absorbing cotton through the holes on the surface of the bearing framework 301c, for enhancing the sound-absorbing effect of the sound-absorbing cotton.

[0039] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made in the present application shall be included in the protection scope of the present application.

Claims

1. A dust removal fan noise reduction device, comprising a dust removal fan body (1), a connecting channel (2) is arranged at the top of the dust removal fan body (1), characterized in that: The top of the connecting channel (2) is provided with an auxiliary mechanism (3), which comprises a bearing assembly (301) and an auxiliary noise reduction assembly (302), the bearing assembly (301) is arranged at the top of the connecting channel (2), and the auxiliary noise reduction assembly (302) is arranged at the inner side of the bearing assembly (301); The bearing assembly (301) comprises a bearing shell (301a), sound-absorbing cotton (301b), a bearing framework (301c), an inner closed mesh plate (301d) and a protective cover plate (301e), the bearing shell (301a) is bolted at the top of the connecting channel (2), the sound-absorbing cotton (301b) is clamped at the inner side of the bearing shell (301a), the bearing framework (301c) is clamped at the inner side of the sound-absorbing cotton (301b), the inner closed mesh plate (301d) is bolted at the inner side of the bearing shell (301a), and the protective cover plate (301e) is bolted at the top of the bearing shell (301a).

2. The noise reduction device for dust removal fan according to claim 1, characterized in that: The auxiliary noise reduction assembly (302) comprises a sealing clamping plate (302a) fixedly connected at the top of the inner side of the bearing shell (301a) and the bottom of the inner side of the protective cover plate (301e) respectively, the right side of the sealing clamping plate (302a) is provided with an input pipe (302b), the left side of the input pipe (302b) is in communication with the right side of the protective cover plate (301e), and the right side of the protective cover plate (301e) is threadedly connected with a closed cylinder.

3. The noise reduction device for dust removal fan according to claim 2, characterized in that: The top of the sealing clamping plate (302a) is provided with an output pipe (302c), the bottom of the outer side of the output pipe (302c) is welded to the top of the protective cover plate (301e), and the bottom of the output pipe (302c) is inserted into the inner side of the sound-absorbing cotton (301b).

4. The noise reduction device for dust removal fan according to claim 3, characterized in that: The top of the output pipe (302c) is bolted with an output hose (302d), and the right side of the output hose (302d) is communicated with a transportation pipe.

5. The dust removal fan noise reduction device according to claim 1, characterized in that: The top of the dust removal fan body (1) is provided with an auxiliary assembly (4), the auxiliary assembly (4) comprises a protective sleeve (401) clamped at the top of the protective cover plate (301e), the inner side of the protective sleeve (401) is fixedly connected with an auxiliary bearing ring (402), and the bottom of the auxiliary bearing ring (402) is in contact with the top of the protective cover plate (301e).

6. The dust removal fan noise reduction device according to claim 5, characterized in that: The outer side of the auxiliary bearing ring (402) is fixedly connected with a protective ring (403), and the inner side of the protective ring (403) is close to the outer side of the protective cover plate (301e).

7. The dust removal fan noise reduction device according to claim 1, characterized in that: The outer side of the bearing shell (301a) is in a cylindrical shape, and the inner side of the sound-absorbing cotton (301b) is in contact with the outer side of the inner closed mesh plate (301d).

8. The noise reduction device for dust removal fan according to claim 2, characterized in that: The bottom of the bearing framework (301c) is inserted into the bottom of the inner side of the bearing shell (301a), the top of the bearing framework (301c) is inserted into the bottom of the input pipe (302b), and the outer side of the protective cover plate (301e) is in a cylindrical shape.

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