Metal plate centrifugal wind wheel

Abstract

The utility model belongs to the technical field of centrifugal wind wheels, and particularly relates to a metal plate centrifugal wind wheel which comprises a front disc. A rear disc is fixedly mounted at the bottom of the front disc through a connecting mechanism; the connecting mechanism comprises a blade assembly and a fixing assembly. The blade assembly comprises an impeller, a through hole is formed in the top of the impeller, and a flow guide groove and a reinforcing rib plate are arranged on the two sides of the impeller respectively. Under the action of the fixing assembly, the blade assembly can be conveniently installed between the front disc and the rear disc, so that when a single impeller is damaged, the impeller can be conveniently replaced by disassembling the corresponding fixing assembly, and the impeller is convenient to replace. Under the action of the flow guide cone and the flow guide blades installed between the front disc and the rear disc and the flow guide grooves of the impeller, vortex at the tail of the impeller can be reduced, so that the using effect is improved, meanwhile, the structural strength of the impeller can be improved under the action of the reinforcing rib plates, and the service life of the centrifugal wind wheel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to centrifugal fan technology field, concretely relates to a sheet metal centrifugal fan. BACKGROUND

[0002] Centrifugal fan, also known as the core component of centrifugal fan or centrifugal fan, is a kind of equipment using kinetic energy conversion for pressure energy, mainly used for conveying gas, providing ventilation, cooling and air purification and other applications. Its working principle is based on the action of centrifugal force: when the fan rotates, the blade will transmit kinetic energy to air, and air moves radially outward, and a negative pressure zone is formed in the center of the fan, so that more air is sucked. After acceleration and pressurization, air is discharged from the edge of the fan.

[0003] Problems of prior art:

[0004] At present, the existing centrifugal fan is usually integrally cast, and this kind of way makes the fan cannot be disassembled and replaced, so when a single impeller is damaged and cannot be repaired, the whole needs to be replaced, which has great limitation, and the guide structure of the existing centrifugal fan is not perfect, which affects the use effect of the centrifugal fan. Utility model content

[0005] The utility model aims at providing a sheet metal centrifugal fan, which can conveniently install the blade assembly between the front disc and the rear disc under the action of the fixing assembly, so that when a single impeller is damaged, the corresponding fixing assembly can be conveniently disassembled and replaced, and the use effect of the centrifugal fan can be improved under the action of the guide cone and the guide blade installed between the front disc and the rear disc and the guide groove of the impeller.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A sheet metal centrifugal fan, comprising a front disc;

[0008] The bottom of the front disc is fixedly installed with a rear disc through a connecting mechanism;

[0009] The connecting mechanism comprises a blade assembly and a fixing assembly;

[0010] The blade assembly comprises an impeller, the top of the impeller is provided with a through hole, and the two sides of the impeller are respectively provided with a guide groove and a reinforcing rib plate.

[0011] The top of the rear disc is welded with a mounting table, the top of the mounting table is fixedly installed with a guide cone, and the surface of the guide cone is surrounded by a plurality of guide vanes.

[0012] The impeller is located between the front disc and the rear disc, and the impeller is provided in a plurality of and arranged in a ring array.

[0013] The reinforcing rib plate is welded inside the impeller, the through hole is provided with two, and penetrates the impeller.

[0014] The flow guide groove is provided with multiple and arranged vertically, and the flow guide groove is arc-shaped.

[0015] The fixing assembly comprises a fixing screw, both ends of the fixing screw are threadedly installed with fixing nuts, and the fixing screw penetrates the front disc and the rear disc.

[0016] The fixing nut pushes the front disc and the connecting mechanism to move synchronously, so that the rear disc is abutted between the front disc and the connecting mechanism, and the fixing screw penetrates the impeller.

[0017] The utility model discloses obtain technical effect for:

[0018] The utility model discloses, through the through hole that is set up in the inside of impeller, and fixing screw can pass front disc, through hole and rear disc in proper order, and can make front disc and rear disc to impeller clamping fixed through the tightening of fixed nut, thereby can complete the convenient installation of connecting mechanism, and when the connecting mechanism appears damage and cannot be maintained, the fixing assembly of corresponding blade assembly is twisted down in straight line and can be individually disassembled and replaced, thereby compared with the wind wheel of integrally cast forming better applicability.

[0019] The utility model discloses, through the installation of installation platform on the top of rear disc, and the top of installation platform is installed with flow guide cone and is installed with on the surface of flow guide cone, so the installation platform can rotate with wind wheel synchronously through the effect of installation platform, thereby improving the fluid entry amount through the effect of flow guide cone and flow guide blade, thereby improving the working efficiency of centrifugal wind wheel, and the structure strength of impeller can be improved through the reinforcing rib plate installed on one side of impeller, thereby improving the service life, and the generation of vortex can be reduced through the flow guide groove of impeller back. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the schematic diagram of the connecting mechanism installation structure of the utility model,

[0021] Figure 2 It is the blade assembly structure schematic diagram in the utility model,

[0022] Figure 3 It is the flow guide cone installation structure schematic diagram in the utility model,

[0023] Figure 4 It is the overall installation structure perspective view in the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1, front disc; 2, rear disc; 3, connecting mechanism; 31, blade assembly; 311, impeller; 312, through hole; 313, guide groove; 314, reinforcing rib plate; 32, fixing assembly; 321, fixing screw; 322, fixing nut; 4, mounting table; 5, guide cone; 6, guide blade. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model is specifically described below in combination with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection scope requested by the utility model.

[0027] As shown in Figures 1-4 A sheet metal centrifugal wind wheel, comprising a front disc 1;

[0028] The bottom of the front disc 1 is fixedly provided with a rear disc 2 through a connecting mechanism 3;

[0029] The connecting mechanism 3 comprises a blade assembly 31 and a fixing assembly 32.

[0030] The blade assembly 31 comprises an impeller 311, the top of the impeller 311 is provided with a through hole 312, and the two sides of the impeller 311 are respectively provided with a guide groove 313 and a reinforcing rib plate 314.

[0031] With reference to the accompanying Figure 1 , Figure 3 and Figure 4 In this embodiment, the top of the rear disc 2 is welded with a mounting table 4, the top of the mounting table 4 is fixedly provided with a guide cone 5, and the surface of the guide cone 5 is surrounded by a plurality of guide blades 6.

[0032] In the above embodiment, the guide cone 5 can be installed and fixed with the centrifugal wind wheel through the setting of the mounting table 4, so that the guide blades 6 can be driven to rotate synchronously by the guide cone 5 in the process of rotating the centrifugal wind wheel.

[0033] Further, when the guide cone 5 and the guide blades 6 rotate synchronously, they can cooperate with the connecting mechanism 3 arranged between the front disc 1 and the rear disc 2, thereby increasing the amount of fluid entering the centrifugal wind wheel, and further improving the working efficiency of the centrifugal wind wheel.

[0034] With reference to the accompanying Figure 1 , Figure 2 and Figure 3 In this embodiment, the impeller 311 is located between the front disc 1 and the rear disc 2, and a plurality of impellers 311 are arranged in a ring array.

[0035] In the above embodiment, the centrifugal fan wheel can be formed by the plurality of impellers 311 and the front disc 1 and the rear disc 2, so that the negative pressure can be formed by the plurality of impellers 311 during the rotation of the centrifugal fan wheel, thereby extracting the fluid.

[0036] Specifically, the reinforcing rib plate 314 is welded inside the impeller 311, and the overall structural strength of the impeller 311 can be effectively improved by the arrangement of the reinforcing rib plate 314, thereby effectively improving the service life of the impeller 311, and the vortex generated at the end of the impeller 311 can be reduced due to the arrangement of the plurality of guide grooves 313 in the vertical direction and the arc-shaped guide grooves 313.

[0037] More specifically, the through hole 312 is provided with two and penetrates the impeller 311, so that the convenient disassembly and assembly of the impeller 311 can be realized by the cooperation of the fixing assembly 32 and the through hole 312.

[0038] According to the above structure, the fixing assembly 32 comprises a fixing screw 321, both ends of the fixing screw 321 are threadedly installed with a fixing nut 322, and the fixing screw 321 penetrates the front disc 1 and the rear disc 2, so that the convenient disassembly and assembly of the impeller 311 can be realized by rotating the fixing nut 322 to make the fixing nut 322 push the front disc 1 and the connecting mechanism 3 to move synchronously, and then the rear disc 2 is abutted between the front disc 1 and the connecting mechanism 3.

[0039] The working principle of the utility model is that: the impeller 311 is placed between the front disc 1 and the rear disc 2, the fixing nut 322 is threadedly installed at both ends of the fixing screw 321 after the fixing screw 321 penetrates the front disc 1 and the through hole 312 and the rear disc 2, and a tool is used to tighten, in the process of tightening, the front disc 1 and the rear disc 2 can be pushed to move to the middle by the fixing nut 322, so that the impeller 311 is clamped and fixed between the front disc 1 and the rear disc 2; in the process of use, the rotation of the centrifugal fan wheel can drive the guide cone 5 and the guide blade 6 to rotate through the mounting table 4, so that the guide cone 5 and the guide blade 6 cooperate with the impeller 311 to generate greater suction, thereby improving the use effect of the centrifugal fan wheel, and the guide groove 313 arranged at the back of the impeller 311 can effectively reduce the generation of vortex, and the reinforcing rib plate 314 can also improve the structural strength of the impeller 311, thereby improving the service life of the centrifugal fan wheel.

[0040] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A sheet metal centrifugal fan, characterized by, Include: Front disc (1); The bottom of the front disc (1) is fixedly installed with the rear disc (2) through the connecting mechanism (3); Wherein, the connecting mechanism (3) comprises a vane assembly (31) and a fixing assembly (32); The vane assembly (31) comprises an impeller (311), the top of the impeller (311) is provided with a through hole (312), and the two sides of the impeller (311) are respectively provided with a flow guide groove (313) and a reinforcing rib plate (314).

2. The sheet metal centrifugal fan wheel of claim 1, wherein: The top of the rear disc (2) is welded with a mounting table (4), the top of the mounting table (4) is fixedly installed with a flow guide cone (5), and the surface of the flow guide cone (5) is surrounded by a plurality of flow guide vanes (6).

3. The metal plate centrifugal wind wheel according to claim 1, characterized in that: The impeller (311) is located between the front disc (1) and the rear disc (2), and a plurality of impellers (311) are arranged in annular array.

4. The sheet metal centrifugal fan wheel of claim 1, wherein: The reinforcing rib plate (314) is welded inside the impeller (311), the through hole (312) is provided with two, and penetrates the impeller (311).

5. The sheet metal centrifugal fan wheel of claim 1, wherein: The flow guide groove (313) is provided with multiple and arranged vertically, the flow guide groove (313) is arc-shaped.

6. The sheet metal centrifugal fan wheel of claim 1, wherein: The fixing assembly (32) comprises a fixed screw rod (321), both ends of the fixed screw rod (321) are threadedly installed with a fixed nut (322), and the fixed screw rod (321) penetrates the front disc (1) and the rear disc (2).

7. The sheet metal centrifugal fan wheel of claim 6, wherein: The fixed nut (322) pushes the front disc (1) and the connecting mechanism (3) to move synchronously, so that the rear disc (2) is abutted between the front disc (1) and the connecting mechanism (3), and the fixed screw rod (321) penetrates the impeller (311).

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