Centrifugal fan impeller dynamic balance stabilizing structure

Abstract

The utility model discloses centrifugal fan impeller dynamic balance stable structure relates to impeller dynamic balance stable structure technical field. The utility model discloses a support and the rotation axis of setting in the support, the outer wall fixedly connected with the rotation block of rotation axis, still include: compensation part, the compensation part is provided with several, several compensation parts all install in the support, prevent the reverse rotation part, the reverse rotation part is provided with several, several prevent the reverse rotation part all install in the support, the compensation part includes rotation subassembly, and rotation subassembly installs in the support, extrusion subassembly, extrusion subassembly is located in the support. The utility model discloses a compensation part, solved the current impeller dynamic balance stable structure in the use process, the wear of part is inconvenient to compensate, leads to after the high -frequency rotation, the wear of part, and the balance is easy to be broken, thereby reduced the stability problem of device operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of impeller dynamic balancing and stabilization structure, and in particular relates to a dynamic balancing and stabilization structure for centrifugal fan impellers. Background Technology

[0002] Centrifugal fans, as core equipment in general machinery, are widely used in power, metallurgy, environmental protection and other fields. The dynamic balance accuracy of their impellers during high-speed rotation directly determines the operational stability and service life of the equipment. Traditional impellers are prone to centrifugal force imbalance due to factors such as blade manufacturing errors, uneven materials, and assembly deviations, which can lead to excessive vibration and noise, accelerated bearing wear, and even equipment failure and shutdown. To solve this problem, the impeller dynamic balancing and stabilizing structure has emerged. By optimizing blade design, adopting precise counterweight technology, and strengthening the connection between the hub and blades, the rotational inertial force deviation is offset, significantly improving the smoothness of fan operation and meeting the requirements of high-speed and long-cycle operation. It is a key technical support for ensuring the efficient and reliable operation of fans.

[0003] However, the existing impeller dynamic balancing and stabilizing structure is not convenient for compensating for the wear of parts during use. As a result, after high-frequency rotation, the parts wear out and the balance is easily broken, thereby reducing the stability of the device operation. Utility Model Content

[0004] The purpose of this invention is to provide a dynamic balancing and stabilizing structure for centrifugal fan impellers. By setting up a compensation part, it solves the problem that existing dynamic balancing and stabilizing structures for impellers are not convenient for compensating for wear of parts during use, which leads to wear of parts after high-frequency rotation and easy disruption of balance, thereby reducing the stability of the device operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a dynamic balancing and stabilizing structure for a centrifugal fan impeller, comprising a support frame and a rotating shaft disposed within the support frame. A rotating block is fixedly connected to the outer wall of the rotating shaft. The structure also includes: a compensation part, wherein several compensation parts are provided and each compensation part is installed within the support frame; an anti-reverse rotation part, wherein several anti-reverse rotation parts are provided and each anti-reverse rotation part is installed within the support frame; the compensation part includes a rotating assembly, which is installed within the support frame; and a pressing assembly, which is located within the support frame; the rotating assembly includes a collar rotatably connected to the inner wall of the support frame, and a hollow screw is disposed within the collar. The hollow threaded rod passes through a collar, and its outer wall is threaded to the collar. A limiting ring is fixedly connected to the side of the hollow threaded rod away from the collar. A slider is slidably connected to the inner wall of the bracket. The side of the slider near the hollow threaded rod is fixedly connected to the hollow threaded rod. A limiting component is provided inside the slider. The slider is a square block. The limiting component includes a limiting rod slidably connected to the inner wall of the slider. The side of the limiting rod near the square block is fixedly connected to the square block. A limiting plate is fixedly connected to the side of the limiting rod away from the square block. The limiting plate is located on the side of the slider away from the square block.

[0006] Furthermore, the anti-reverse part includes a latching assembly disposed outside the bracket; and an unlocking assembly installed inside the bracket. The latching assembly is used to lock the collar, while the unlocking assembly is used to unlock the latching assembly.

[0007] Furthermore, the extrusion assembly includes a C-shaped block slidably connected to the inner wall of the support, a spring is fixedly connected to the side of the C-shaped block near the slider, the side of the spring near the slider is fixedly connected to the slider, and a roller is rotatably connected to the inner wall of the C-shaped block, the roller being adapted to the rotating block.

[0008] Furthermore, the buckle assembly includes a handle fixedly connected to the outer wall of the collar, and a snap-fit ​​component is provided inside the bracket. The snap-fit ​​component includes several slots opened on the side of the handle near the bracket. Two springs are fixedly connected to a snap block on the side of the handle. The side of the two snap blocks near the handle extends to the outside of the bracket, and the side of the two snap blocks near the handle is adapted to the several slots.

[0009] Furthermore, the unlocking component includes a connecting ring that is slidably connected to the inner wall of the bracket, and two springs are fixedly connected to the inner wall of the bracket, the two springs being circumferentially distributed.

[0010] This utility model has the following beneficial effects: 1. By setting up a compensation unit, during compensation, the rotating component drives the relevant parts to move, pushing the extrusion component closer to the rotating block. At the same time, the limiting component ensures the stability of the movement process, keeping the extrusion component and the rotating block in a matching state. This achieves compensation and adjustment for shaft wear, effectively compensating for the wear of the rotating block. It avoids the impeller dynamic balance being broken due to the wear of the rotating block after high-frequency rotation, thereby improving the stability of the device operation and ensuring that the balance of the centrifugal fan impeller during rotation is not affected by wear. 2. By setting an anti-reverse mechanism, the collar is locked by a snap-fit ​​assembly during rotation. When unlocking is required, the unlocking assembly drives the relevant components to release the snap-fit ​​assembly's locking restriction on the collar. This achieves locking and unlocking control of the collar, preventing accidental reverse rotation of the collar. It can stably lock the collar and prevent accidental reverse rotation of the collar during the operation of the compensation unit, ensuring that the adjustment state of the compensation unit remains stable at all times. This avoids damage to the compensation effect due to collar reversal and further ensures the reliability of the device operation.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the rotating block of this utility model; Figure 3 This is a partial cross-sectional view of the unlocking component of this utility model; Figure 4 This is a partial cross-sectional view of the compensation part of this utility model; Figure 5 This is an exploded view of the snap-fit ​​assembly of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 101. Bracket; 102. Rotating shaft; 103. Rotating block; 2. Compensation part; 21. Rotating assembly; 211. Collar; 212. Hollow threaded rod; 213. Limiting ring; 214. Slider; 215. Limiting rod; 216. Limiting plate; 22. Extrusion assembly; 221. C-shaped block; 222. Spring one; 223. Roller; 3. Anti-reverse rotation part; 31. Buckle assembly; 311. Handle; 312. Slot; 313. Block; 32. Unlocking assembly; 321. Connecting ring; 322. Spring two. Detailed Implementation

[0015] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 As shown, this utility model is a dynamic balancing and stabilizing structure for a centrifugal fan impeller, including a bracket 101 and a rotating shaft 102 disposed within the bracket 101. A rotating block 103 is fixedly connected to the outer wall of the rotating shaft 102. It also includes: a compensation part 2, of which several compensation parts 2 are provided and are all installed within the bracket 101; and an anti-reverse rotation part 3, of which several anti-reverse rotation parts 3 are provided and are all installed within the bracket 101.

[0017] The compensation unit 2 includes a rotating assembly 21, which is installed inside the bracket 101; and a pressing assembly 22, which is located inside the bracket 101. The rotating assembly 21 includes a collar 211 rotatably connected to the inner wall of the bracket 101. A hollow threaded rod 212 is provided inside the collar 211, passing through the collar 211. The outer wall of the hollow threaded rod 212 is threadedly connected to the collar 211. A limiting ring 213 is fixedly connected to the side of the hollow threaded rod 212 away from the collar 211. A slider 214 is slidably connected to the inner wall of the bracket 101. The side of the slider 214 near the hollow threaded rod 212 is fixedly connected to the hollow threaded rod 212. A limiting element is provided inside the slider 214. The slider 214 is a square block. The limiting element includes a limiting rod 215 slidably connected to the inner wall of the slider 214. The limiting rod 215 is close to the U-shaped block 221. One side is fixedly connected to the inverted block 221. The limiting rod 215 is fixedly connected to the limiting plate 216 on the side away from the inverted block 221. The limiting plate 216 is located on the side of the slider 214 away from the inverted block 221. The extrusion assembly 22 includes an inverted block 221 that is slidably connected to the inner wall of the bracket 101. A spring 222 is fixedly connected to the side of the inverted block 221 near the slider 214. The side of the spring 222 near the slider 214 is fixedly connected to the slider 214. A roller 223 is rotatably connected to the inner wall of the inverted block 221. The roller 223 is adapted to the rotating block 103. By setting the compensation part 2, the wear of the rotating block 103 can be effectively compensated, avoiding the impeller dynamic balance being broken due to the wear of the rotating block 103 after high-frequency rotation, thereby improving the stability of the device operation and ensuring that the balance state of the centrifugal fan impeller during rotation is not affected by wear.

[0018] The anti-reverse part 3 includes a latching assembly 31, which is disposed outside the bracket 101; and an unlocking assembly 32, which is installed inside the bracket 101. The latching assembly 31 is used to lock the collar 211, and the unlocking assembly 32 is used to unlock the latching assembly 31. The latching assembly 31 includes a handle 311 fixedly connected to the outer wall of the collar 211. A locking member is provided inside the bracket 101. The locking member includes several slots 312 formed on the side of the handle 311 near the bracket 101. Two springs 322 are fixedly connected to locking blocks 313 on the side of the handle 311. The two locking blocks 313 are close to the handle 311. One side of 1 extends to the outside of the bracket 101. The two locking blocks 313 are adapted to several locking slots 312 on the side near the handle 311. The unlocking component 32 includes a connecting ring 321 that is slidably connected to the inner wall of the bracket 101. Two springs 322 are fixedly connected to the inner wall of the bracket 101. The two springs 322 are circumferentially distributed. By setting the anti-reverse part 3, the collar 211 can be stably locked to prevent the collar 211 from accidentally reversing during the operation of the compensation part 2. This ensures that the adjustment state of the compensation part 2 remains stable and avoids damage to the compensation effect due to the reversal of the collar 211, further ensuring the reliability of the device operation.

[0019] A specific application of this embodiment is as follows: In use, the bracket 101 can be installed on a centrifugal fan, and then one end of the rotating shaft 102 with the rotating block 103 is inserted into the bracket 101, so that the rotating block 103 is locked between several rollers 223. At this time, the handle 311 can be turned to drive the collar 211 to rotate. At this time, the rotating collar 211 will drive the hollow threaded rod 212 to move towards the rotating block 103. At this time, the slider 214 will slide with the hollow threaded rod 212. At this time, the slider 214 will squeeze the spring 222, compress it and generate elastic force, and the limiting rod 215 will slide inside the slider 214, thereby ensuring the stability of the compression of the spring 222. When the spring 222 is fully compressed, the U-shaped block 221 will make the roller 223 stick to the rotating block 103. When the roller 223 and the rotating block 103 wear out, the spring 222 will... Under the action of the elastic force 22, the roller 223 will remain pressed against the rotating block 103. Then, the handle 311 can be rotated to drive the collar 211 to rotate, thereby compressing the released spring 222. When the handle 311 is rotated, the locking block 313 will be squeezed by the locking groove 312, causing it to slide within the bracket 101. At this time, the second spring 322 will be compressed and generate elastic force. When the handle 311 is rotated to the appropriate position, the locking block 313 will be driven into the corresponding locking groove 312 by the elastic force of the second spring 322. When it is necessary to unlock the handle 311, the connecting ring 321 can be pulled to slide on the outer wall of the bracket 101, thereby squeezing the locking block 313 and causing it to slide within the bracket 101. This will compress the second spring 322 and generate elastic force. At this time, the locking block 313 will move away from the locking groove 312. Then, the handle 311 can be rotated in the opposite direction.

[0020] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0021] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dynamic balancing and stabilizing structure for a centrifugal fan impeller, comprising a support (101) and a rotating shaft (102) disposed within the support (101), wherein a rotating block (103) is fixedly connected to the outer wall of the rotating shaft (102), characterized in that, Also includes: The compensation part (2) is provided in a plurality of parts, and the plurality of compensation parts (2) are installed in the bracket (101); Anti-reverse part (3), a plurality of anti-reverse parts (3) are provided, and a plurality of anti-reverse parts (3) are installed in bracket (101); The compensation unit (2) includes a rotating assembly (21) which is mounted inside the bracket (101); as well as An extrusion assembly (22) is located within a support (101); The rotating assembly (21) includes a collar (211) rotatably connected to the inner wall of the bracket (101). A hollow threaded rod (212) is provided inside the collar (211). The hollow threaded rod (212) passes through the collar (211). The outer wall of the hollow threaded rod (212) is threadedly connected to the collar (211). A limiting ring (213) is fixedly connected to the side of the hollow threaded rod (212) away from the collar (211). A slider (214) is slidably connected to the inner wall of the bracket (101). The side of the slider (214) close to the hollow threaded rod (212) is fixedly connected to the hollow threaded rod (212). A limiting element is provided inside the slider (214). Among them, slider (214) is a square block.

2. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 1, characterized in that, The anti-reverse part (3) includes a latching assembly (31) disposed outside the bracket (101); and Unlocking component (32), said unlocking component (32) is installed in bracket (101); The buckle assembly (31) is used to lock the collar (211), while the unlocking assembly (32) is used to unlock the buckle assembly (31).

3. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 2, characterized in that, The extrusion assembly (22) includes an incline block (221) slidably connected to the inner wall of the support (101). A spring (222) is fixedly connected to the side of the incline block (221) near the slider (214). The side of the spring (222) near the slider (214) is fixedly connected to the slider (214). A roller (223) is rotatably connected to the inner wall of the incline block (221). Among them, the roller (223) is adapted to the rotating block (103).

4. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 3, characterized in that, The buckle assembly (31) includes a handle (311) fixedly connected to the outer wall of the collar (211), and a snap-fit ​​component is provided inside the bracket (101).

5. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 4, characterized in that, The unlocking component (32) includes a connecting ring (321) that is slidably connected to the inner wall of the bracket (101), and two springs (322) are fixedly connected to the inner wall of the bracket (101). Among them, the two springs (322) are distributed in a circle.

6. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 5, characterized in that, The limiting component includes a limiting rod (215) that is slidably connected to the inner wall of the slider (214). The side of the limiting rod (215) close to the shaped block (221) is fixedly connected to the shaped block (221), and the side of the limiting rod (215) away from the shaped block (221) is fixedly connected to a limiting plate (216). The limiting plate (216) is located on the side of the slider (214) away from the shaped block (221).

7. The centrifugal fan impeller dynamic balancing and stabilizing structure according to claim 6, characterized in that, The snap-fit ​​component includes a plurality of slots (312) formed on the side of the handle (311) near the bracket (101), and two springs (322) are fixedly connected to a snap-fit ​​block (313) on the side near the handle (311), and the two snap-fit ​​blocks (313) extend to the outside of the bracket (101) on the side near the handle (311). Among them, the two card blocks (313) are adapted to several card slots (312) on the side near the handle (311).

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