Low-noise suspension fan

Abstract

The utility model discloses a low-noise suspension fan, and relates to the technical field of suspension fans. The magnetic suspension fan equipment comprises a magnetic suspension fan equipment body, the bottom of the magnetic suspension fan equipment body makes contact with the ground, a flexible connector is fixedly connected to the top of the magnetic suspension fan equipment body, an air outlet pipeline is arranged above the flexible connector, a noise reduction assembly is arranged on the outer side of the air outlet pipeline, and the noise reduction assembly comprises a supporting frame. A noise reduction ring is arranged on the right side of the supporting frame, and a bracket is in contact with the bottom of the upper position of the air outlet pipeline. By arranging the noise reduction assembly, specifically, when the air outlet pipeline vibrates, the top position drives the bracket to move, meanwhile, the right side part of the air outlet pipeline moves in the noise reduction ring and pushes the clamping plate, the air outlet pipeline can be in a flexible movement state, vibration force can be dispersed more evenly, and therefore the better stabilizing effect is achieved; and noise is greatly reduced, and the influence on workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspension fans, in particular to a low-noise suspension fan. Background Art

[0002] Magnetic levitation blowers are highly efficient and energy-efficient equipment used in cement production, conveying gases and dust. They play a crucial role in cement production, particularly in providing air for calcining in vertical kilns and homogenizing raw meal in rotary kilns. Compared to conventional Roots blowers, magnetic levitation blowers offer higher energy efficiency and lower noise levels, making them highly sought after in modern cement manufacturing.

[0003] During use, existing magnetic levitation fans usually need to transport the powder produced by cement production through pipes. However, during the transportation process, the pipes will vibrate a lot, which will generate a lot of noise, making the noise volume in the production workshop too loud, which has a great impact on the workers and is likely to cause certain physical damage to the workers. Therefore, we proposed a low-noise levitation fan. Utility Model Content

[0004] The purpose of the present utility model is to provide a low-noise suspension fan. By setting a noise reduction component, specifically, when the air outlet duct vibrates, the top position drives the bracket to move, and at the same time the right part of the air outlet duct will move in the noise reduction ring and push the clamping plate, so that the air outlet duct can be in a flexible movement, and the vibration force can be dispersed more evenly, thereby achieving a better stability effect, greatly reducing the generation of noise, and reducing the impact on the staff. It solves the problem that during the use of the existing magnetic levitation fan, it is usually necessary to transport the powder generated by cement production through a pipeline, but the pipeline will have a lot of vibration during the transportation process, and a large noise will be generated during the vibration process, so that the noise volume in the production workshop is too loud, which has a great impact on the staff.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a low-noise suspension fan, comprising a magnetic suspension fan device body, the bottom of the magnetic suspension fan device body is in contact with the ground, the top of the magnetic suspension fan device body is fixedly connected to a flexible joint, an air outlet duct is provided above the flexible joint, a noise reduction component is provided on the outside of the air outlet duct, the noise reduction component comprises a support frame, a noise reduction ring is provided on the right side of the support frame, a bracket is in contact with the bottom of the upper position of the air outlet duct, a fixed block is fixedly connected to the top of the support frame, the bottom of the support frame is in contact with the ground, a plurality of fixing frames are fixedly connected to the left side of the support frame, and the left sides of the plurality of fixing frames are all fixedly connected to the right side of the magnetic suspension fan device body;

[0007] A plurality of clamping plates are arranged inside the noise reduction ring, and the clamping plates are arranged in a circular array with the noise reduction ring as the center. The parts connected to the clamping plates are the same. The side of the clamping plate away from the air outlet duct is fixedly connected to a sliding rod, and a spring 1 is sleeved on the outer side of the sliding rod. One end of the spring 1 is fixedly connected to the surface of the clamping plate, and the other end of the spring 1 is fixedly connected to the inner side of the noise reduction ring. Limiting plates are provided above and below the sliding rod, and the side of the limiting plate close to the clamping plate is fixedly connected to the surface of the clamping plate.

[0008] Furthermore, one end of the bottom of the air outlet duct is fixedly connected to the main duct, the left side of the air outlet duct is fixedly connected to a one-way valve, the right side of the air outlet duct is fixedly connected to a turbine manual butterfly valve, and the bottom of the flexible joint is fixedly connected to the bottom left of the air outlet duct by screws.

[0009] Furthermore, the top of the support frame is fixedly connected to a fixed block, the bottom of the bracket is fixedly connected to a limiting rod, the bottom of the limiting rod passes through the fixed block and extends to the inside, the limiting rod is slidably connected to the fixed block, the bottom of the limiting rod is fixedly connected to a convex ring, a spring 2 is sleeved on the outside of the limiting rod, the top of the spring 2 is fixedly connected to the inner wall of the fixed block, and the bottom of the spring 2 is fixedly connected to the convex ring at the bottom of the limiting rod.

[0010] Furthermore, a fixing frame is provided on the outside of the main pipe, the bottom of the fixing frame is fixedly connected to the ground, the bottom of the main pipe is in contact with a positioning block, the bottom of the positioning block is fixedly connected to the ground, the top of the main pipe is in contact with a clamping block, a threaded hole is opened on the top of the fixing frame, a bolt is threadedly connected to the inner wall of the threaded hole, and the bottom of the bolt is in contact with the top of the clamping block.

[0011] Furthermore, a connecting frame is fixedly connected to the left side of the noise reduction ring, the left side of the connecting frame is fixedly connected to the right side of the support frame, and the bracket is arranged in an arc shape.

[0012] Furthermore, the clamping plate is arranged in an arc shape, the side of the clamping plate away from the noise reduction ring contacts the surface of the air outlet duct, the side of the limit plate close to the noise reduction ring contacts the surface of the noise reduction ring, the sliding rod passes through the noise reduction ring and extends to the outside, and the sliding rod is slidably connected to the noise reduction ring.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a noise reduction component. Specifically, when the air outlet duct vibrates, the top position drives the bracket to move. At the same time, the right part of the air outlet duct moves in the noise reduction ring and pushes the clamping plate. The air outlet duct can be in a flexible movement, which can disperse the vibration force more evenly, thereby achieving a better stabilization effect, greatly reducing the generation of noise, and reducing the impact on staff.

[0015] 2. The utility model sets a positioning block and a clamping block. Specifically, the bottom of the main pipe contacts the top of the positioning block during installation. By turning the bolt clockwise, the clamping block is pushed downward, so that the clamping block and the positioning block cooperate to clamp and fix the main pipe, making the main pipe more stable and avoiding large shaking when the main pipe is subjected to large vibration.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the right side structure of the main body of the magnetic levitation fan equipment of the utility model;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the air outlet duct of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of A;

[0022] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of B;

[0023] Figure 6 This is a front structural diagram of the fixing frame of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Magnetic levitation fan equipment body; 11. Flexible joint; 111. Air outlet duct; 112. Main duct; 113. One-way valve; 114. Turbine manual butterfly valve; 12. Noise reduction assembly; 121. Support frame; 211. Fixed frame; 212. Fixed block; 122. Noise reduction ring; 221. Connecting frame; 222. Clamping plate; 223. Sliding rod; 224. Spring 1; 225. Limiting plate; 123. Bracket; 231. Limiting rod; 232. Spring 2; 13. Fixed frame; 131. Positioning block; 132. Clamping block; 133. Bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-6 As shown, the utility model is a low-noise suspension fan, including a magnetic suspension fan device body 1, the bottom of the magnetic suspension fan device body 1 is in contact with the ground, the top of the magnetic suspension fan device body 1 is fixedly connected to a flexible joint 11, an air outlet duct 111 is provided above the flexible joint 11, and a noise reduction component 12 is provided on the outside of the air outlet duct 111. The noise reduction component 12 includes a support frame 121, a noise reduction ring 122 is provided on the right side of the support frame 121, and a bracket 123 is in contact with the bottom of the upper position of the air outlet duct 111. The top of the support frame 121 is fixedly connected to a fixing block 212, the bottom of the support frame 121 is in contact with the ground, and a plurality of fixing frames 211 are fixedly connected to the left side of the support frame 121. The left sides of the plurality of fixing frames 211 are all fixedly connected to the right side of the magnetic suspension fan device body 1;

[0028] A plurality of clamping plates 222 are provided inside the noise reduction ring 122. The plurality of clamping plates 222 are arranged in a circular array with the noise reduction ring 122 as the center. The parts connected to the plurality of clamping plates 222 are the same. A sliding rod 223 is fixedly connected to the side of the clamping plate 222 away from the air outlet duct 111. A spring 224 is sleeved on the outer side of the sliding rod 223. One end of the spring 224 is fixedly connected to the surface of the clamping plate 222, and the other end of the spring 224 is fixedly connected to the inner side of the noise reduction ring 122. A limit plate 223 is provided above and below the sliding rod 223. 5. The side of the limiting plate 225 close to the clamping plate 222 is fixedly connected to the surface of the clamping plate 222. By setting the noise reduction component 12, specifically, when the air outlet duct 111 vibrates, the top position drives the bracket 123 to move, and at the same time, the right part of the air outlet duct 111 will move in the noise reduction ring 122 and push the clamping plate 222. Then, the air outlet duct 111 can be in a flexible movement, and the vibration force can be dispersed more evenly, thereby achieving a better stabilization effect, greatly reducing the generation of noise, and reducing the impact on staff.

[0029] One end of the bottom of the air outlet duct 111 is fixedly connected to the main duct 112, a one-way valve 113 is fixedly connected to the left side of the air outlet duct 111, and a turbine manual butterfly valve 114 is fixedly connected to the right side of the air outlet duct 111. The bottom of the flexible joint 11 is fixedly connected to the bottom of the left side of the air outlet duct 111 by screws. The one-way valve 113 is used to control the wind flow in one direction. The staff opens, closes or adjusts the flow by adjusting the turbine manual butterfly valve 114.

[0030] The top of the support frame 121 is fixedly connected to a fixed block 212, and the bottom of the bracket 123 is fixedly connected to a limiting rod 231. The bottom of the limiting rod 231 passes through the fixed block 212 and extends to the inside. The limiting rod 231 is slidably connected to the fixed block 212, and the bottom of the limiting rod 231 is fixedly connected to a convex ring. A spring 232 is sleeved on the outside of the limiting rod 231. The top of the spring 232 is fixedly connected to the inner wall of the fixed block 212, and the bottom of the spring 232 is fixedly connected to the convex ring at the bottom of the limiting rod 231. When the bracket 123 is pushed, it drives the limiting rod 231 to slide in the fixed block 212, and at the same time squeezes the spring 232, and then resets it through the spring 232. This reciprocating process can keep the air outlet duct 111 in its original position.

[0031] A fixing frame 13 is provided on the outside of the main pipe 112, and the bottom of the fixing frame 13 is fixedly connected to the ground. The bottom of the main pipe 112 contacts a positioning block 131, and the bottom of the positioning block 131 is fixedly connected to the ground. The top of the main pipe 112 contacts a clamping block 132, and a threaded hole is provided at the top of the fixing frame 13. The inner wall of the threaded hole is threadedly connected with a bolt 133, and the bottom of the bolt 133 contacts the top of the clamping block 132. By arranging the positioning block 131 and the clamping block 132, specifically, the bottom of the main pipe 112 contacts the top of the positioning block 131 during installation, and by rotating the bolt 133 clockwise, the clamping block 132 is pushed downward, so that the clamping block 132 and the positioning block 131 cooperate to clamp and fix the main pipe 112, making the main pipe 112 more stable and avoiding the situation where the main pipe 112 shakes violently when it is subjected to large vibrations.

[0032] The left side of the noise reduction ring 122 is fixedly connected to a connecting frame 221, and the left side of the connecting frame 221 is fixedly connected to the right side of the support frame 121. The bracket 123 is arranged in an arc shape, and the fixing frame 211 is used to support and fix the support frame 121, and the connecting frame 221 is used to support and fix the noise reduction ring 122.

[0033] The clamping plate 222 is arranged in an arc shape. The side of the clamping plate 222 away from the noise reduction ring 122 contacts the surface of the air outlet duct 111, and the side of the limiting plate 225 close to the noise reduction ring 122 contacts the surface of the noise reduction ring 122. The sliding rod 223 passes through the noise reduction ring 122 and extends to the outside. The sliding rod 223 is slidably connected to the noise reduction ring 122. The limiting plate 225 is used to limit the clamping plate 222 to prevent the clamping plate 222 from being offset or flipped.

[0034] A specific application of this embodiment is:

[0035] The principle of the main body 1 of the magnetic levitation fan equipment is: it is directly driven by a high-speed motor and the speed is adjusted by a frequency converter. It uses an active magnetic levitation bearing system to provide contactless and wear-free suspension support for the internal rotating magnetic levitation bearing through controllable electromagnetic force. The magnetic levitation bearing is directly connected to the impeller, and the transmission is zero-loss, thereby achieving the effects of successful gas transportation without wear, low noise, and no lubrication inside the machine. The left end of the air outlet duct 111 is fixedly connected to the top of the flexible joint 11 through a flange, and the one-way valve 113 is used to control the wind to flow in one direction. The wind generated by the main body 1 of the magnetic levitation fan equipment is The force will enter the air outlet duct 111 through the flexible joint 11, and then the staff will open, close or adjust the flow by adjusting the turbine manual butterfly valve 114, so that the wind force enters the main duct 112. The bottom of the main duct 112 is in contact with the top of the positioning block 131 during installation. By turning the bolt 133 clockwise, the clamping block 132 is pushed downward, so that the clamping block 132 and the positioning block 131 cooperate to clamp and fix the main duct 112, making the main duct 112 more stable and avoiding the main duct 112 from shaking greatly when it is subjected to large vibrations. In addition, the air outlet duct 111 is The top of the air outlet duct 111 drives the bracket 123 to move, and the bracket 123 drives the limit rod 231 to slide in the fixed block 212, and at the same time squeezes the spring 232, and then resets through the spring 232. This reciprocating motion can make the upper position of the air outlet duct 111 in a flexible active state, reducing the noise caused by hard collision. At the same time, the right side of the air outlet duct 111 will move in the noise reduction ring 122 and push the clamping plate 222, and the clamping plate 222 drives the slide bar 223 to slide on the noise reduction ring 122, and at the same time squeezes the spring 1 224. The air outlet duct 111 is reset by squeezing and resetting the clamping plate 222 under the elastic action of a spring 224. The limit plate 225 is used to limit the clamping plate 222 to prevent the clamping plate 222 from being offset or flipped. The right side of the air outlet duct 111 can be flexibly moved again, and the vibration force can be dispersed more evenly, thereby achieving a better stabilization effect, greatly reducing the noise generation, and reducing the impact on the staff. The fixing frame 211 is used to support and fix the supporting frame 121, and the connecting frame 221 is used to support and fix the noise reduction ring 122.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A low-noise suspension fan, comprising a magnetic suspension fan device body (1), wherein the bottom of the magnetic suspension fan device body (1) contacts the ground, the top of the magnetic suspension fan device body (1) is fixedly connected to a flexible joint (11), and an air outlet duct (111) is provided above the flexible joint (11), characterized in that: A noise reduction component (12) is provided on the outside of the air outlet duct (111), and the noise reduction component (12) includes a support frame (121), a noise reduction ring (122) is provided on the right side of the support frame (121), a bracket (123) is in contact with the bottom of the upper position of the air outlet duct (111), a fixed block (212) is fixedly connected to the top of the support frame (121), the bottom of the support frame (121) is in contact with the ground, and a plurality of fixed frames (211) are fixedly connected to the left side of the support frame (121), and the left sides of the plurality of fixed frames (211) are all fixedly connected to the right side of the magnetic levitation fan device body (1); A plurality of clamping plates (222) are provided inside the noise reduction ring (122), and the plurality of clamping plates (222) are arranged in a circular array with the noise reduction ring (122) as the center. The parts connected to the plurality of clamping plates (222) are the same. A sliding rod (223) is fixedly connected to the side of the clamping plate (222) away from the air outlet duct (111). A spring (224) is sleeved on the outer side of the sliding rod (223). One end of the spring (224) is fixedly connected to the surface of the clamping plate (222), and the other end of the spring (224) is fixedly connected to the inner side of the noise reduction ring (122). Limiting plates (225) are provided above and below the sliding rod (223), and the side of the limiting plate (225) close to the clamping plate (222) is fixedly connected to the surface of the clamping plate (222).

2. A low-noise suspension fan according to claim 1, characterized in that: One end of the bottom of the air outlet duct (111) is fixedly connected to a main duct (112), a one-way valve (113) is fixedly connected to the left side of the air outlet duct (111), a turbine manual butterfly valve (114) is fixedly connected to the right side of the air outlet duct (111), and the bottom of the flexible joint (11) is fixedly connected to the bottom of the left side of the air outlet duct (111) by screws.

3. A low-noise suspension fan according to claim 2, characterized in that: The top of the support frame (121) is fixedly connected to a fixed block (212), the bottom of the bracket (123) is fixedly connected to a limiting rod (231), the bottom of the limiting rod (231) passes through the fixed block (212) and extends to the inside, the limiting rod (231) is slidably connected to the fixed block (212), the bottom of the limiting rod (231) is fixedly connected to a convex ring, the outer side of the limiting rod (231) is provided with a second spring (232), the top of the second spring (232) is fixedly connected to the inner wall of the fixed block (212), and the bottom of the second spring (232) is fixedly connected to the convex ring at the bottom of the limiting rod (231).

4. A low-noise suspension fan according to claim 3, characterized in that: A fixing frame (13) is provided outside the main pipe (112), the bottom of the fixing frame (13) is fixedly connected to the ground, the bottom of the main pipe (112) contacts a positioning block (131), the bottom of the positioning block (131) is fixedly connected to the ground, the top of the main pipe (112) contacts a clamping block (132), a threaded hole is opened at the top of the fixing frame (13), a bolt (133) is threadedly connected to the inner wall of the threaded hole, and the bottom of the bolt (133) contacts the top of the clamping block (132).

5. A low-noise suspension fan according to claim 4, characterized in that: The left side of the noise reduction ring (122) is fixedly connected to a connecting frame (221), the left side of the connecting frame (221) is fixedly connected to the right side of the supporting frame (121), and the bracket (123) is arranged in an arc shape.

6. A low-noise suspension fan according to claim 4, characterized in that: The clamping plate (222) is arranged in an arc shape, and a side of the clamping plate (222) away from the noise reduction ring (122) contacts the surface of the air outlet duct (111).

7. The low-noise suspension fan according to claim 4, characterized in that: The side of the limiting plate (225) close to the noise reduction ring (122) contacts the surface of the noise reduction ring (122), the sliding rod (223) penetrates the noise reduction ring (122) and extends to the outside, and the sliding rod (223) is slidably connected to the noise reduction ring (122).

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