High-strength centrifugal fan blade

Abstract

The utility model discloses a high -strength centrifugal fan blade, include: fan blade main part, including bottom plate, connecting ring, blade and flange, the blade is located the middle part of bottom plate and connecting ring, and the blade is equidistant distribution along the outer ring edge department of bottom plate, dismounting subassembly, located the middle part of bottom plate and flange, including fixed in the plug -in post of flange bottom, can solve flange installation and dismounting inefficiency: in dust, oil stain, high temperature environment (such as metallurgy, chemical industry, food processing), fan blade is easy to gather pollutant and leads to the decline or dynamic balance failure of efficiency, need to dismount and clean regularly, and every time installation or dismounting needs to tighten or loosen a plurality of bolts one by one, this not only is cumbersome, time -consuming long operation step, and brings great inconvenience to operating personnel, rely on special tool: the fastening and dismounting of bolt usually need to use spanner, sleeve and other special tools, if the site lacks suitable tool or tool is lost, will lead to the problem of unable to work.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, and in particular to a high-strength centrifugal fan blade. Background Technology

[0002] In industrial ventilation, air conditioning systems, and air purification equipment, centrifugal fans are core power components, and their performance directly affects the system's efficiency and energy consumption. As the core working element of the fan, the centrifugal fan blades are usually made of high-strength materials (such as aluminum alloys, engineering plastics, or composite materials) to withstand the enormous centrifugal force and airflow impact generated by high-speed rotation.

[0003] Currently, the connection between centrifugal fan blades and drive shafts is generally achieved using flanges and bolts; however, bolt connections have certain shortcomings in practical applications and maintenance.

[0004] First, the installation and disassembly are inefficient: In dusty, oily, and high-temperature environments (such as metallurgy, chemical industry, and food processing), the fan blades are prone to accumulating pollutants, leading to decreased efficiency or dynamic imbalance. They need to be disassembled and cleaned regularly, and each installation or disassembly requires tightening or loosening multiple bolts one by one. This not only makes the operation steps cumbersome and time-consuming, but also causes great inconvenience to the operators.

[0005] Secondly, it relies on specialized tools: tightening and loosening bolts usually requires the use of specialized tools such as wrenches and sockets; if suitable tools are not available on site or are lost, the work cannot be carried out.

[0006] Finally, limited operating space: In compact fan designs or equipment with limited installation space, there may not be enough space to operate a wrench, further increasing the difficulty of installation and disassembly. Utility Model Content

[0007] This utility model provides a high-strength centrifugal fan blade that solves the problem of low efficiency in flange installation and disassembly: In dusty, oily, and high-temperature environments (such as metallurgy, chemical industry, and food processing), fan blades easily accumulate pollutants, leading to decreased efficiency or dynamic imbalance. Regular disassembly and cleaning are required, and each installation or disassembly necessitates tightening or loosening multiple bolts individually. This is not only cumbersome and time-consuming, causing significant inconvenience to operators, but also relies on specialized tools: tightening and loosening bolts typically requires wrenches, sockets, and other specialized tools. If suitable tools are lacking on-site or lost, the work cannot be carried out. Furthermore, limited operating space: in compact fan designs or equipment with limited installation space, there may not be enough space to operate wrenches, further increasing the difficulty of installation and disassembly.

[0008] This utility model provides a high-strength centrifugal fan blade, comprising:

[0009] The main body of the fan blade includes a base plate, a connecting ring, blades, and a flange. The blades are located in the middle of the base plate and the connecting ring, and the blades are evenly distributed along the outer edge of the base plate.

[0010] The disassembly assembly, located in the middle of the base plate and flange, includes a pin fixed to the bottom of the flange. The upper end of the base plate has a slot that matches the pin. The base plate has a rotating groove inside, and a compression groove is formed on the inner side of the rotating groove. A positioning groove corresponding to the compression groove is formed on one side of the pin. A rotating ring is provided inside the rotating groove, and positioning pins are arrayed on the inner edge of the rotating ring.

[0011] In a high-strength centrifugal fan blade according to an embodiment of the present invention, an auxiliary groove is provided on the outer side of the upper end of the base plate near the slot, which is connected to the rotating groove, and the auxiliary groove has an arc-shaped structure.

[0012] In a high-strength centrifugal fan blade according to one embodiment of the present invention, the rotating ring and the rotating groove are adapted to each other, and the rotating ring and the positioning pin are an integral structure.

[0013] In a high-strength centrifugal fan blade according to one embodiment of the present invention, the insert is a cylindrical structure and the inserts are arranged in an array along the outer edge of the flange.

[0014] In a high-strength centrifugal fan blade according to an embodiment of the present invention, the slot and the compression groove are connected, and the compression groove and the rotation groove are connected, and the number of compression grooves and positioning pins are equal.

[0015] In a high-strength centrifugal fan blade according to one embodiment of the present invention, the positioning pin has an "L" shaped structure and is adapted to the positioning groove.

[0016] In a high-strength centrifugal fan blade according to one embodiment of the present invention, a support spring is provided at the connection between the positioning pin and the compression groove, and the support spring is adapted to the positioning pin.

[0017] In a high-strength centrifugal fan blade according to one embodiment of the present invention, an auxiliary pile is integrally connected to the upper end of the rotating ring, and the auxiliary pile and the auxiliary groove are compatible.

[0018] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a high-strength centrifugal fan blade, which can solve the problem of low efficiency in flange installation and disassembly by setting up disassembly components: In dusty, oily, and high-temperature environments (such as metallurgy, chemical industry, and food processing), the fan blade is prone to accumulating pollutants, leading to decreased efficiency or dynamic balance failure, requiring regular disassembly and cleaning. Each installation or disassembly requires tightening or loosening multiple bolts one by one; this is not only cumbersome and time-consuming, but also causes great inconvenience to operators; it relies on special tools: tightening and loosening bolts usually requires the use of special tools such as wrenches and sockets; if suitable tools are lacking on site or tools are lost, the work cannot be carried out; the operating space is limited: in compact fan designs or equipment with limited installation space, there may not be enough space to operate wrenches, further increasing the difficulty of installation and disassembly.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a high-strength centrifugal fan blade provided in one embodiment of this application;

[0022] Figure 2 yes Figure 1 A schematic diagram of a partially disassembled structure of a high-strength centrifugal fan blade;

[0023] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 yes Figure 1 A cross-sectional view of a high-strength centrifugal fan blade;

[0025] Figure 5 yes Figure 4 A magnified structural diagram at point B in the middle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figures 1 to 5 As shown, this application provides a high-strength centrifugal fan blade, including: a fan blade body 100, including a base plate 10, a connecting ring 20, blades 30 and a flange 40, the blades 30 are located in the middle of the base plate 10 and the connecting ring 20, and the blades 30 are evenly distributed along the outer edge of the base plate 10; a disassembly assembly 50, located in the middle of the base plate 10 and the flange 40, including a post 51 fixed to the bottom of the flange 40, a slot 52 adapted to the post 51 is opened at the upper end of the base plate 10, a rotating groove 53 is opened inside the base plate 10, and a compression groove 54 is opened on the inner side of the rotating groove 53, a positioning groove 55 corresponding to the compression groove 54 is opened on one side of the post 51, a rotating ring 57 is provided inside the rotating groove 53, and positioning pins 58 are arrayed on the inner edge of the rotating ring 57.

[0030] After adopting the above technical solution, since the disassembly component 50 is located in the middle of the base plate 10 and the flange 40, when disassembling and maintaining the fan blade body 100, the flange 40 needs to be disassembled. The flange 40 can be disassembled by the disassembly component 50, which can solve the problem of low efficiency in flange installation and disassembly: In dusty, oily, and high-temperature environments (such as metallurgy, chemical industry, and food processing), the fan blades are prone to accumulating pollutants, leading to decreased efficiency or dynamic balance failure, requiring regular disassembly and cleaning. Each installation or disassembly requires tightening or loosening multiple bolts one by one; this is not only cumbersome and time-consuming, but also causes great inconvenience to operators; it also relies on special tools: tightening and loosening bolts usually requires the use of special tools such as wrenches and sockets; if suitable tools are not available on site or tools are lost, the work cannot be carried out; and the operating space is limited: in compact fan designs or equipment with limited installation space, there may not be enough space to operate wrenches, further increasing the difficulty of installation and disassembly.

[0031] It should be noted that during the disassembly of flange 40, the user rotates the two sets of auxiliary pins 510, causing the auxiliary pins 510 to rotate along the inside of the auxiliary groove 56, which in turn drives the rotating ring 57 to rotate along the inside of the rotating groove 53. The rotating ring 57 then drives all the positioning pins 58 to rotate along the inside of the compression groove 54, causing the positioning pins 58 to disengage from the inside of the positioning groove 55. This compresses the support spring 59 until the auxiliary pins 510 contact the other end of the auxiliary groove 56. At this point, several sets of positioning pins 58 disengage from the inside of the positioning groove 55, directly pulling flange 40 upward and causing all the inserts 51 to disengage from the inside of the slot 52, thereby disassembling and maintaining flange 40.

[0032] Similarly, when installing the flange 40, the above steps are reversed. The positioning pin 58 can be disengaged from the inside of the slot 52, and the insert post 51 can be inserted into the inside of the slot 52. When the positioning groove 55 is aligned with the positioning pin 58, the auxiliary post 510 is released. Under the elastic potential energy of the support spring 59, the positioning pin 58 is driven to insert into the inside of the positioning groove 55, thereby positioning the insert post 51 and then installing and fixing the flange 40.

[0033] It should be noted that during the rotation of the fan blade body 100, the rotation direction of the fan blade body 100 is the same as the opening direction of the positioning pin 58. During the rotation of the fan blade body 100, the positioning pin 58 can be tightly locked inside the positioning groove 55, so that the insert 51 is firmly locked inside the slot 52. This ensures the connection strength, reliability and torque transmission capability during the connection of the disassembly assembly 50 and the flange 40.

[0034] Meanwhile, the main body of the fan blade 100 is made of high-strength materials such as aluminum alloy, engineering plastics or composite materials to withstand the huge centrifugal force and airflow impact generated by high-speed rotation.

[0035] In an optional embodiment, an auxiliary groove 56 is provided on the upper end of the base plate 10 near the outer side of the slot 52, which is connected to the rotating groove 53. The auxiliary groove 56 has an arc-shaped structure, which facilitates the auxiliary pile 510 to rotate along the inside of the auxiliary groove 56, thereby providing an auxiliary effect.

[0036] In an optional embodiment, the rotating ring 57 is adapted to the rotating groove 53, and the rotating ring 57 and the positioning pin 58 are an integral structure. During the rotation of the rotating ring 57, all the positioning pins 58 are further rotated, which can disengage the positioning pins 58 from the inside of the positioning groove 55 and release the positioning of the insert 51 inside the slot 52.

[0037] In one optional embodiment, the insert 51 is a cylindrical structure, and the insert 51 is arranged in an array along the outer edge of the flange 40. Several sets of insert 51 can be inserted into the corresponding slots 52 to facilitate the limiting connection between the subsequent positioning slots 55 and positioning pins 58, and to ensure the stability of the flange 40 during subsequent use.

[0038] In an optional embodiment, the slot 52 is connected to the compression groove 54, and the compression groove 54 is connected to the rotation groove 53. The number of compression grooves 54 and the number of positioning pins 58 are equal. The compression grooves 54 can compress and reset the supporting positioning pins 58, ensuring that the positioning pins 58 can enter the interior of the rotation groove 53 along the compression grooves 54.

[0039] In an optional implementation, the positioning pin 58 has an "L" shaped structure and is adapted to the positioning groove 55, so that the insertion post 51 can be fixed inside the slot 52 by the positioning pin 58.

[0040] In an optional embodiment, a support spring 59 is provided at the connection between the positioning pin 58 and the compression groove 54, and the support spring 59 is adapted to the positioning pin 58. The number of support springs 59 is equal to the number of positioning pins 58. When the positioning pin 58 is disengaged from the inside of the positioning groove 55, it can be compressed and stored by the support spring 59 to facilitate the subsequent reset and ejection of the positioning pin 58.

[0041] In an optional embodiment, an auxiliary post 510 is integrally connected to the upper end of the rotating ring 57, and the auxiliary post 510 is adapted to the auxiliary groove 56. The auxiliary post 510 can drive the rotating ring 57 to rotate, ensuring that the rotating ring 57 drives the positioning pin 58 to disengage from the inside of the positioning groove 55, thereby releasing the positioning of the insertion post 51 by the slot 52.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0046] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-strength centrifugal fan blade, characterized in that, include: The main body of the fan blade includes a base plate, a connecting ring, blades, and a flange. The blades are located in the middle of the base plate and the connecting ring, and the blades are evenly distributed along the outer edge of the base plate. The disassembly assembly, located in the middle of the base plate and flange, includes a pin fixed to the bottom of the flange. The upper end of the base plate has a slot that matches the pin. The base plate has a rotating groove inside, and a compression groove is formed on the inner side of the rotating groove. A positioning groove corresponding to the compression groove is formed on one side of the pin. A rotating ring is provided inside the rotating groove, and positioning pins are arrayed on the inner edge of the rotating ring.

2. The high-strength centrifugal fan blade according to claim 1, characterized in that, An auxiliary groove, which is connected to the rotating groove, is provided on the outer side of the upper end of the base plate near the slot, and the auxiliary groove has an arc-shaped structure.

3. The high-strength centrifugal fan blade according to claim 1, characterized in that, The rotating ring and the rotating groove are adapted to each other, and the rotating ring and the positioning pin are an integral structure.

4. A high-strength centrifugal fan blade according to claim 1, characterized in that, The inserts are cylindrical in structure and are arranged in an array along the outer edge of the flange.

5. A high-strength centrifugal fan blade according to claim 1, characterized in that, The slot is connected to the compression groove, and the compression groove is connected to the rotation groove. The number of compression grooves and positioning pins are equal.

6. A high-strength centrifugal fan blade according to claim 1, characterized in that, The locating pin has an "L" shaped structure and is compatible with the locating groove.

7. A high-strength centrifugal fan blade according to claim 1, characterized in that, A support spring is provided at the connection between the positioning pin and the compression groove, and the support spring is compatible with the positioning pin.

8. A high-strength centrifugal fan blade according to claim 1, characterized in that, An auxiliary pile is integrally connected to the upper end of the rotating ring, and the auxiliary pile is compatible with the auxiliary groove.

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