A centrifugal fan impeller dynamic balance correction device
Patent Information
- Application Number
- CN202522386450.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-11
AI Technical Summary
[0004]本实用新型的目的在于提供一种离心风机叶轮动平衡校正装置，通过设置调节部，解决了在对叶轮进行校正修复时，由于校正角度难以调整，使得需要根据实际需求调整校正叶轮的角度或位置时，操作灵活性受限，不仅难以匹配不同叶轮的校正需求，还会延长校正作业时间，影响整体修复效率的问题
1、通过设置调节部，叶轮固定后，启动电机，电机将通过转轴带动转台及叶轮同步转动，转动过程中配合平衡检测装置进行检测，当检测到叶轮某处需增重或减重时，操作人员即可用工具校正，若校正时需调整叶轮角度以便操作，可先向外拔出固定在限位杆和限位盘上的插杆，解除对限位杆上转杆的限位，使转杆可自由转动，随后启动液压推杆，液压推杆以滑轨为导向推动齿条移动，由于齿条与转动连接在两个固定块上的转杆外壁的齿轮相啮合，齿条移动时会通过与两个齿轮的传动，使齿轮所在的转杆借助调节块带动转台及叶轮完成角度调整，该设置能灵活调节叶轮校正角度，适配不同位置的修复需求，提升校正操作的精准度与便利性；
Smart Images
Figure CN224802593U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of calibration devices, and in particular relates to a dynamic balancing calibration device for centrifugal fan impellers. Background Technology
[0002] The centrifugal fan impeller dynamic balancing correction device is a specialized device used to detect and correct the unbalanced vibration problem caused by uneven mass distribution in the impeller, the core rotating component of a centrifugal fan. Its core principle is to collect the vibration signal of the impeller at high speed in real time through sensors, and combine it with the data processing system to accurately locate the areas on the impeller that are too light or too heavy. Then, based on the calculated correction parameters, the mass distribution of the impeller is made closer to uniform by adding counterweights or removing part of the mass at specific locations. This ultimately reduces the centrifugal force imbalance during impeller rotation, reduces vibration and noise during fan operation, and prevents the bearings and other components from shortening their lifespan due to excessive wear.
[0003] However, when using the existing equipment to calibrate and repair the impeller, the calibration angle is difficult to adjust. This limits the operational flexibility when the angle or position of the impeller needs to be adjusted according to actual needs. Not only is it difficult to match the calibration requirements of different impellers, but it also prolongs the calibration operation time and affects the overall repair efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a dynamic balancing correction device for centrifugal fan impellers. By setting an adjustment part, it solves the problem that when correcting and repairing impellers, the correction angle is difficult to adjust, which limits the operational flexibility when the angle or position of the impeller needs to be adjusted according to actual needs. This not only makes it difficult to match the correction requirements of different impellers, but also prolongs the correction operation time and affects the overall repair efficiency.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a centrifugal fan impeller dynamic balancing correction device, comprising a turntable, and further comprising: an adjustment part disposed on the top of the turntable; a configuration part disposed on the adjustment part; the adjustment part comprising an adjustment assembly mounted on the turntable; and a limiting assembly mounted on the adjustment assembly; the adjustment assembly comprising two fixed blocks fixedly connected to the top of the turntable, a rotating rod rotatably connected to the two fixed blocks, an adjustment block fixedly connected to the outer wall of the rotating rod, two gears fixedly connected to the outer wall of the rotating rod, a slide rail fixedly connected to the top of the turntable, a rack slidably connected to the outer surface of the slide rail, a driving component disposed on the top of the turntable, the rack meshing with the two gears, the driving component comprising a hydraulic push rod disposed on the top of the turntable, the output end of the hydraulic push rod fixedly connected to the rack, a rectangular plate disposed on the top of the turntable, and the hydraulic push rod fixedly connected to the rectangular plate.
[0006] Furthermore, the configuration unit includes a rotating assembly mounted on the bottom of the turntable; and a fixing assembly mounted on the top of the turntable.
[0007] Furthermore, the limiting component includes a limiting disk fixedly connected to a corresponding fixing block, a limiting rod fixedly connected to the outer wall of the rotating rod, an insert rod slidably connected to the limiting rod, the right end of the insert rod extending into the limiting disk, and the right end of the insert rod slidably connected to the limiting disk.
[0008] Furthermore, the rotating assembly includes a support platform disposed at the bottom of the turntable, a motor is fixedly connected to the bottom of the support platform, the output shaft of the motor is fixedly connected to a rotating shaft via a coupling, the top end of the rotating shaft is fixedly connected to the turntable, and the rotating shaft passes through the support platform and is rotatably connected to the support platform.
[0009] Furthermore, the fixing assembly includes a placement platform fixedly connected to the top of the adjusting block. A screw is fixedly connected to the top of the placement platform. A sleeve is slidably connected to the outer wall of the screw. A nut is threadedly connected to the outer wall of the screw. The bottom end of the nut contacts the sleeve. Several connecting rods are hinged to the outer wall of the sleeve. A clamping plate is hinged to the end of each connecting rod away from the sleeve. Several sliding grooves are opened on the top of the placement platform. Sliding rods are fixedly connected to the bottom of each clamping plate. A reset component is provided on the screw. The bottom ends of each sliding rod extend into several sliding grooves and are slidably connected to several sliding grooves. The reset component includes a spring wound around the outer wall of the screw. One end of the spring is fixedly connected to the placement platform, and the other end of the spring is fixedly connected to the sleeve.
[0010] This utility model has the following beneficial effects: 1. After the impeller is fixed by setting an adjustment section, the motor is started. The motor will drive the turntable and impeller to rotate synchronously through the rotating shaft. During the rotation, the balance detection device will detect that the impeller needs to be weighted or unweighted at a certain point. The operator can then use tools to correct it. If the impeller angle needs to be adjusted for operation during correction, the plug fixed on the limit rod and limit plate can be pulled out first to release the limit on the rotating rod on the limit rod, allowing the rotating rod to rotate freely. Then, the hydraulic push rod is started. The hydraulic push rod pushes the rack to move with the slide rail as a guide. Since the rack meshes with the gear on the outer wall of the rotating rod that is rotatably connected to the two fixed blocks, when the rack moves, it will drive the rotating rod where the gear is located to complete the angle adjustment by using the adjustment block to drive the turntable and impeller. This setting can flexibly adjust the impeller correction angle to adapt to the repair needs of different positions and improve the accuracy and convenience of the correction operation. 2. By setting up the configuration section, during use, the impeller to be calibrated is first placed between the multiple clamping plates on the placement table. After placement, the nut on the screw is turned downwards. The nut applies a compressive force to the sleeve sliding on its outer wall, pushing the sleeve downwards. During the downward movement, the sleeve simultaneously compresses the spring on the outer wall of the screw, allowing the spring to accumulate elastic potential energy for later reset. At the same time, the sleeve, through multiple connecting rods hinged to it, drives the clamping plates hinged to the other end of each connecting rod to expand outwards under the guidance of the sliding rod and the sliding groove, thereby clamping the impeller on the placement table. This structure can accommodate impellers of different sizes, ensures stable impeller positioning during calibration, and improves operational convenience.
[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 partial cross-sectional view of the adjustment part of this utility model; Figure 3 This is a partial cross-sectional view of the configuration part of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle; Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.
[0014] The attached diagram lists the components represented by each number as follows: 1. Turntable; 2. Adjustment section; 21. Adjustment assembly; 211. Fixing block; 212. Rotating rod; 213. Adjustment block; 214. Gear; 215. Slide rail; 216. Rack; 217. Hydraulic push rod; 22. Limiting assembly; 221. Limiting plate; 222. Limiting rod; 223. Insert rod; 3. Configuration section; 31. Rotating assembly; 311. Support platform; 312. Motor; 313. Rotating shaft; 32. Fixing assembly; 321. Placement platform; 322. Screw; 323. Sleeve; 324. Nut; 325. Connecting rod; 326. Clamping plate; 327. Slide groove; 328. Slide rod; 329. Spring. 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 centrifugal fan impeller dynamic balancing correction device, including a turntable 1, and further including: an adjustment part 2, which is disposed on the top of the turntable 1; and a configuration part 3, which is disposed on the adjustment part 2.
[0017] Adjustment unit 2 includes adjustment assembly 21, which is mounted on turntable 1; and limit assembly 22, which is mounted on adjustment assembly 21. Adjustment assembly 21 includes two fixed blocks 211 fixedly connected to the top of turntable 1, rotating rods 212 rotatably connected to the two fixed blocks 211, adjustment blocks 213 fixedly connected to the outer wall of rotating rods 212, two gears 214 fixedly connected to the outer wall of rotating rods 212, a slide rail 215 fixedly connected to the top of turntable 1, a rack 216 slidably connected to the outer surface of slide rail 215, and a driving component on the top of turntable 1. 16 meshes with two gears 214. The limiting assembly 22 includes a limiting disk 221 fixedly connected to the corresponding fixing block 211. A limiting rod 222 is fixedly connected to the outer wall of the rotating rod 212. An insert rod 223 is slidably connected to the limiting rod 222. The right end of the insert rod 223 extends into the limiting disk 221 and is slidably connected to the limiting disk 221. The driving component includes a hydraulic push rod 217 set on the top of the turntable 1. The output end of the hydraulic push rod 217 is fixedly connected to the rack 216. A rectangular plate is set on the top of the turntable 1, and the hydraulic push rod 217 is fixedly connected to the rectangular plate. With the fixed connection, the motor 312 can be started after the impeller is fixed by the adjustment part 2. The motor 312 will drive the turntable 1 and the impeller to rotate synchronously through the rotating shaft 313. During the rotation, a balance detection device will also be used for detection. When it is detected that the impeller needs to be weighted up or down at a certain point, the operator can use tools to make corrections. If the impeller angle needs to be adjusted for ease of operation during the correction process, the plug 223 fixed on the limit rod 222 and the limit plate 221 can be pulled out to release the limit on the rotating rod 212 on the limit rod 222, so that the rotating rod 212 can rotate freely. Then the hydraulic push rod 217 can be activated. The hydraulic push rod 217 will push the rack 216 to move with the slide rail 215 as the guide. Since the rack 216 meshes with the gear 214 on the outer wall of the rotating rod 212 which is rotatably connected to the two fixed blocks 211, during the movement of the rack 216, through the transmission action with the two gears 214, the rotating rod 212 where the gears 214 are located will drive the turntable 1 and the impeller to complete the angle adjustment through the adjusting block 213. With this setting, the correction angle of the impeller can be flexibly adjusted to adapt to the repair needs of different positions and improve the accuracy and convenience of the correction operation.
[0018] Configuration unit 3 includes a rotating assembly 31, which is mounted on the bottom of turntable 1; and a fixing assembly 32, which is mounted on the top of turntable 1. The rotating assembly 31 includes a support platform 311 disposed at the bottom of turntable 1. A motor 312 is fixedly connected to the bottom of the support platform 311. The output shaft of the motor 312 is fixedly connected to a rotating shaft 313 via a coupling. The top end of the rotating shaft 313 is fixedly connected to turntable 1. The rotating shaft 313 passes through the support platform 311 and is rotatably connected to the support platform 311. The fixing assembly 32 includes a placement platform 3 fixedly connected to the top of the adjusting block 213. 21. A screw 322 is fixedly connected to the top of the placement platform 321. A sleeve 323 is slidably connected to the outer wall of the screw 322. A nut 324 is threadedly connected to the outer wall of the screw 322. The bottom end of the nut 324 contacts the sleeve 323. Several connecting rods 325 are hinged to the outer wall of the sleeve 323. A clamping plate 326 is hinged to the end of each connecting rod 325 away from the sleeve 323. Several sliding grooves 327 are opened on the top of the placement platform 321. Sliding rods 328 are fixedly connected to the bottom of each clamping plate 326. A reset component is provided on the screw 322. The bottom ends of the slide rods 328 all extend into and are slidably connected to several slide grooves 327. The reset component includes a spring 329 wound around the outer wall of the screw 322. One end of the spring 329 is fixedly connected to the placement platform 321, and the other end of the spring 329 is fixedly connected to the sleeve 323. By providing the configuration part 3, in use, the impeller that needs to be corrected can be inserted between several clamping plates 326 on the placement platform 321. After placement, the nut 324 on the screw 322 is rotated downwards, so that the nut 324 generates a compressive force on the sleeve 323 sliding on its outer wall, and the sleeve... When tube 323 moves downward, it simultaneously compresses the spring 329 on the outer wall of screw 322, allowing spring 329 to accumulate elastic potential energy to provide power for subsequent reset. At the same time, during the downward movement of sleeve 323, multiple connecting rods 325 hinged to it will drive the clamping plate 326 hinged to the other end of the multiple connecting rods 325 to expand outward under the guidance of slide rod 328 and slide groove 327, thereby clamping the impeller on the placement platform 321. This setting can accommodate impellers of different sizes, ensure the positioning stability of the impeller during the calibration process, and improve the ease of operation.
[0019] It should be noted that the control of the hydraulic push rod 217 and the motor 312 in this application can both be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be achieved using existing technologies, such as PLC.
[0020] One specific application of this embodiment is as follows: In use, the impeller that needs to be corrected can be inserted between multiple clamping plates 326 on the placement platform 321. After placement, the nut 324 on the screw 322 is rotated downwards, causing the nut 324 to generate a compressive force on the sleeve 323 sliding on its outer wall. When the sleeve 323 moves downwards, it will simultaneously compress the spring 329 on the outer wall of the screw 322, allowing the spring 329 to accumulate elastic potential energy, providing power for subsequent reset. At the same time, during the downward movement of the sleeve 323, it will also... Multiple connecting rods 325 are hinged to the impeller, causing the clamping plates 326, which are hinged to the other ends of the connecting rods 325, to expand outward under the guidance of the sliding rods 328 and the sliding grooves 327. This clamps the impeller on the placement platform 321. This design can accommodate impellers of different sizes, ensuring the positioning stability of the impeller during the calibration process and improving operational convenience. Once the impeller is fixed, the motor 312 can be started. The motor 312 will drive the turntable 1 and the impeller to rotate synchronously via the rotating shaft 313. During rotation, a balance detection device will be used for testing. When it is detected that the impeller needs to be weighted up or down at a certain point, the operator can use tools to make corrections. If the impeller angle needs to be adjusted for ease of operation during the correction process, the insert rod 223 fixed on the limit rod 222 and the limit plate 221 can be pulled out to release the limit on the rotating rod 212 on the limit rod 222, allowing the rotating rod 212 to rotate freely. Then, the hydraulic push rod 217 can be activated, and the hydraulic push rod 217 will move along the slide rail 215 as a guide. As the rack 216 moves, it meshes with the gear 214 on the outer wall of the rotating rod 212, which is rotatably connected to the two fixed blocks 211. Therefore, during the movement of the rack 216, the rotating rod 212, where the gear 214 is located, will drive the turntable 1 and the impeller to complete the angle adjustment through the adjustment block 213 via the transmission action of the two gears 214. With this setting, the correction angle of the impeller can be flexibly adjusted to adapt to the repair needs of different positions and improve the accuracy and convenience of the correction operation.
[0021] 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.
[0022] 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 centrifugal fan impeller dynamic balancing correction device, comprising a turntable (1), characterized in that, Also includes: Adjustment unit (2), the adjustment unit (2) is disposed on the top of the turntable (1); Configuration unit (3), the configuration unit (3) is provided on adjustment unit (2); The adjustment unit (2) includes an adjustment assembly (21) mounted on the turntable (1); and A limiting component (22) is mounted on an adjusting component (21); The adjustment assembly (21) includes two fixed blocks (211) fixedly connected to the top of the turntable (1), a rotating rod (212) rotatably connected to the two fixed blocks (211), an adjustment block (213) fixedly connected to the outer wall of the rotating rod (212), two gears (214) fixedly connected to the outer wall of the rotating rod (212), a slide rail (215) fixedly connected to the top of the turntable (1), a rack (216) slidably connected to the outer surface of the slide rail (215), and a driving component provided on the top of the turntable (1). Among them, the rack (216) meshes with two gears (214).
2. The centrifugal fan impeller dynamic balancing correction device according to claim 1, characterized in that, The configuration unit (3) includes a rotating assembly (31) mounted on the bottom of the turntable (1); and Fixing component (32) is mounted on top of turntable (1).
3. The centrifugal fan impeller dynamic balancing correction device according to claim 2, characterized in that, The limiting component (22) includes a limiting disk (221) fixedly connected to the corresponding fixing block (211), a limiting rod (222) fixedly connected to the outer wall of the rotating rod (212), an insert rod (223) slidably connected to the limiting rod (222), and the right end of the insert rod (223) extending into the limiting disk (221); The right end of the insertion rod (223) is slidably connected to the limiting plate (221).
4. The centrifugal fan impeller dynamic balancing correction device according to claim 3, characterized in that, The rotating assembly (31) includes a support platform (311) disposed at the bottom of the turntable (1). A motor (312) is fixedly connected to the bottom of the support platform (311). The output shaft of the motor (312) is fixedly connected to a rotating shaft (313) via a coupling. The top end of the rotating shaft (313) is fixedly connected to the turntable (1). The rotating shaft (313) passes through the support platform (311) and is rotatably connected to the support platform (311).
5. The centrifugal fan impeller dynamic balancing correction device according to claim 4, characterized in that, The fixing component (32) includes a placement platform (321) fixedly connected to the top of the adjusting block (213). A screw (322) is fixedly connected to the top of the placement platform (321). A sleeve (323) is slidably connected to the outer wall of the screw (322). A nut (324) is threadedly connected to the outer wall of the screw (322). The bottom end of the nut (324) is in contact with the sleeve (323). Several connecting rods (325) are hinged to the outer wall of the sleeve (323). A clamping plate (326) is hinged to the end of each of the connecting rods (325) away from the sleeve (323). Several sliding grooves (327) are opened on the top of the placement platform (321). A sliding rod (328) is fixedly connected to the bottom of each of the clamping plates (326). A reset component is provided on the screw (322). Among them, the bottom ends of several sliding rods (328) extend into several sliding grooves (327) and are slidably connected to several sliding grooves (327).
6. The centrifugal fan impeller dynamic balancing correction device according to claim 5, characterized in that, The driving component includes a hydraulic push rod (217) disposed on the top of the turntable (1), and the output end of the hydraulic push rod (217) is fixedly connected to the rack (216); The top of the turntable (1) is provided with a rectangular plate, and the hydraulic push rod (217) is fixedly connected to the rectangular plate.
7. A centrifugal fan impeller dynamic balancing correction device according to claim 6, characterized in that, The reset component includes a spring (329) wound around the outer wall of the screw (322), one end of the spring (329) being fixedly connected to the placement platform (321), and the other end of the spring (329) being fixedly connected to the sleeve (323).