A centrifugal fan impeller dynamic balance detection device

Abstract

The utility model discloses a centrifugal fan impeller dynamic balance detection device relates to detection device technical field, the utility model discloses a bottom plate still includes: adjusting portion, adjusting portion sets up on the bottom plate, configuration portion, configuration portion sets up on adjusting portion, adjusting portion includes adjusting assembly, adjusting assembly installs at the top of bottom plate, limiting assembly, limiting assembly installs on adjusting assembly, adjusting assembly includes two sliding blocks fixedly connected at the top of bottom plate, and the sliding slot is seted up on two sliding blocks all. The utility model discloses setting adjusting portion, has solved only can the fixed size impeller to carry out the fixation, but in actual impeller detection work, impeller size often presents the diversity, and this only adapts single size's fixed mode will directly lead to the overall detection efficiency reduction, and it is difficult to satisfy the demand of the efficient, flexible detection of different specifications impeller under actual production scene.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing devices, and in particular relates to a dynamic balance testing device for centrifugal fan impellers. Background Technology

[0002] The centrifugal fan impeller dynamic balancing testing device is a specialized device used to accurately detect and correct the imbalance caused by uneven mass distribution in the impeller, a core rotating component of a centrifugal fan, during high-speed operation. Its core principle involves driving the impeller to simulate the actual operating speed, using sensors to collect vibration signals, phase information, and other data generated during impeller rotation in real time. A supporting data analysis system then processes the collected data to accurately locate the specific position of mass deviation on the impeller and quantify the imbalance. This provides a basis for subsequent dynamic balancing correction by adding or removing counterweights, thereby reducing vibration and noise during high-speed impeller operation, reducing wear on fan bearings and other components, and ensuring the stability, safety, and service life of the fan.

[0003] However, existing devices can only fix impellers of a fixed size during use. But in actual impeller inspection work, impeller sizes are often diverse. This fixing method that only adapts to a single size will directly lead to a reduction in overall inspection efficiency and make it difficult to meet the needs of efficient and flexible inspection of impellers of different specifications in actual production scenarios. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal fan impeller dynamic balancing testing device. By setting an adjustment part, it solves the problem that it can only fix impellers of a fixed size. However, in actual impeller testing, the impeller size is often diverse. This fixing method that only adapts to a single size will directly lead to a reduction in overall testing efficiency and make it difficult to meet the needs of efficient and flexible testing of impellers of different specifications in actual production scenarios.

[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 testing device, comprising a base plate, and further comprising: an adjustment part disposed on the base plate; a configuration part disposed on the adjustment part; the adjustment part comprising an adjustment assembly mounted on the top of the base plate; and a limiting assembly mounted on the adjustment assembly; the adjustment assembly comprising two sliders fixedly connected to the top of the base plate, each slider having a groove, and two screws slidably connected to each groove; a turntable rotatably connected to the near ends of several screws, with an impeller disposed on the outer wall of the turntable; a limiting groove formed at the far ends of several screws, with a limiting ring slidably connected within each limiting groove; two limiting rods fixedly connected to the near sides of several limiting rings; several limiting holes formed on the far sides of the two sliders; nuts threadedly connected to the outer walls of several screws; and the near ends of several limiting rods extending into corresponding limiting holes.

[0006] Furthermore, the configuration unit includes a movable component mounted on the top of the base plate; and a configuration component disposed on the top of the base plate.

[0007] Furthermore, the limiting component includes several sliding rods fixedly connected to the tops of the two sliders. Several top plates are fixedly connected to the tops of each sliding rod. Two sliding plates are slidably connected to the outer walls of each sliding rod. Guide rollers are provided at the bottoms of the two sliding plates. Springs are wound around the outer walls of each sliding rod. One end of each spring is fixedly connected to the two sliders, and the other end of each spring is fixedly connected to the two sliding plates. Limiting components are provided on the two sliders. The outer walls of the two guide rollers are in contact with the impeller. The limiting components include two screw rods fixedly connected to the tops of the two sliders. Each screw rod passes through the two sliding plates and is slidably connected to them. Nuts are threaded onto the outer walls of each screw rod, and the bottoms of the nuts are in contact with the two sliding plates.

[0008] Furthermore, the moving component includes a slide rail fixedly connected to the top of the base plate, the outer surface of the slide rail being fixedly connected to the slider on the right side, a fixing plate being fixedly connected to the top of the base plate, a screw three being rotatably connected to the slider on the left side, the screw three being threadedly connected to the slider on the right side, a driving component being provided on the screw three, the screw three passing through the slider on the right side, and the driving component including a manual turntable fixedly connected to the right side of the screw three, the manual turntable consisting of a turntable and a handle.

[0009] Furthermore, the configuration component includes a dynamic balancing detection device fixedly connected to the top of the base plate, and the right side of the dynamic balancing detection device is fixedly connected to the impeller.

[0010] This utility model has the following beneficial effects: 1. By setting an adjustment section, the screw one is reinforced a second time. After the spacing is adjusted, if it is necessary to fix the impeller, the nuts two on the two screw two can be rotated downwards to make them exert downward pressure on the slide plate on the outer wall of the screw two. The slide plate will move downwards guided by multiple slide rods, driving the guide roller at the lower end of the slide rod to approach and clamp the impeller, thereby fixing the impeller between the two turntables. At the same time, the downward movement of the slide plate will compress the spring on the outer wall of the slide rod, allowing it to accumulate elastic potential energy to assist the subsequent device in resetting. This setting can flexibly adapt to impellers of different sizes, realizing fixation and quick adjustment. 2. After the test is completed, when disassembling the impeller by setting the configuration section, first remove both ends of the impeller according to the previous steps, and then rotate the manual turntable on the screw three to make it drive the screw three to rotate synchronously. When the screw three rotates, it will be guided by the slide rail, driving the right slider and the entire set of devices on the slider to move outward until one end of the impeller is freed from the constraint of the turntable and the guide roller and is suspended in the air. At this time, the impeller can be easily removed.

[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. Base plate; 2. Adjustment section; 21. Adjustment assembly; 211. Slider; 212. Slide groove; 213. Screw 1; 214. Turntable; 215. Impeller; 216. Limiting groove; 217. Limiting ring; 218. Limiting rod; 219. Limiting hole; 220. Nut 1; 22. Limiting assembly; 221. Slide rod; 222. Top plate; 223. Slide plate; 224. Guide roller; 225. Spring; 226. Screw 2; 227. Nut 2; 3. Configuration section; 31. Moving assembly; 311. Slide rail; 312. Fixing plate; 313. Screw 3; 314. Manual turntable; 32. Configuration assembly; 321. Dynamic balancing detection device. 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 balance testing device, including a base plate 1, and further including: an adjustment part 2, which is disposed on the base plate 1; and a configuration part 3, which is disposed on the adjustment part 2.

[0017] The adjustment unit 2 includes an adjustment assembly 21, which is mounted on the top of the base plate 1; and a limiting assembly 22, which is mounted on the adjustment assembly 21. The adjustment assembly 21 includes two sliders 211 fixedly connected to the top of the base plate 1. Each slider 211 has a groove 212, and each groove 212 has two screws 213 slidably connected to it. A turntable 214 is rotatably connected to the ends of the screws 213 that are close to each other. An impeller 215 is provided on the outer wall of the turntable 214. A limiting groove 216 is provided at the ends of the screws 213 that are far from each other. A limiting ring 217 is slidably connected in each limiting groove 216, and two limiting rings 217 are fixedly connected to the sides of the limiting rings 217 that are close to each other. The positioning rods 218 have several limiting holes 219 on the opposite sides of the two sliders 211. Nuts 220 are threaded onto the outer walls of several screws 213. The ends of the limiting rods 218 that are close to each other extend into the corresponding limiting holes 219. The limiting assembly 22 includes several sliding rods 221 fixedly connected to the tops of the two sliders 211. Several top plates 222 are fixedly connected to the tops of the sliding rods 221. Two sliding plates 223 are slidably connected to the outer walls of the sliding rods 221. Guide rollers 224 are provided at the bottom of the two sliding plates 223. Springs 225 are wound around the outer walls of the sliding rods 221. One end of each spring 225 is fixedly connected to the two sliders 211. The other end of each spring 225 is fixedly connected to two slide plates 223. Limiting components are provided on the two sliders 211. The outer walls of the two guide rollers 224 are in contact with the impeller 215. The limiting components include two screws 226 fixedly connected to the top of the two sliders 211. Several screws 226 pass through the two slide plates 223 and are slidably connected to them. Nuts 227 are threaded onto the outer walls of the screws 226. The bottoms of the nuts 227 are in contact with the two slide plates 223. By providing the adjustment part 2, if the device needs to be adjusted according to the size of the impeller 215 during use, one end of the impeller 215 can be placed between the two turntables 214, and then the two screws 213 can be removed outwards. After the nut 220 is removed, the limiting ring 217 and the limiting rod 218 sliding in the limiting groove 216 of the two screws 213 are removed from the limiting hole 219 corresponding to the slider 211. Then the two screws 213 can be moved away from or closer to each other, so that they drive the rotating disk 214 on them to adjust the distance. When the distance of the rotating disk 214 is adjusted to match the size of the impeller 215, the two limiting rings 217 and the limiting rod 218 are reinserted into the limiting hole 219 corresponding to the slider 211 to limit and fix the two screws 213. Then the two nuts 220 are tightened onto the two screws 213 to achieve secondary reinforcement of the screws 213.After the spacing adjustment is completed, if it is necessary to fix the impeller 215, the nuts 227 on the two screws 226 can be rotated downwards. This causes the nuts 227 to exert downward pressure on the sliding plate 223 on the outer wall of the screws 226. As the sliding plate 223 moves downwards, it is guided by multiple sliding rods 221, causing the guide rollers 224 at the lower end of the sliding rods 221 to move closer to and clamp the impeller 215, thereby fixing the impeller 215 between the two turntables 214. Simultaneously, the downward movement of the sliding plate 223 also compresses the springs 225 on the outer wall of the multiple sliding rods 221, allowing the springs 225 to accumulate elastic potential energy, providing support for subsequent device reset. This design allows for flexible adaptation to impellers 215 of different sizes, enabling both fixing and rapid adjustment.

[0018] The configuration unit 3 includes a moving component 31, which is mounted on the top of the base plate 1; and a configuration component 32, which is also mounted on the top of the base plate 1. The moving component 31 includes a slide rail 311 fixedly connected to the top of the base plate 1. The outer surface of the slide rail 311 is fixedly connected to the slider 211 on the right side. A fixing plate 312 is fixedly connected to the top of the base plate 1. A screw 313 is rotatably connected to the left slider 211. The screw 313 is threadedly connected to the right slider 211. A driving component is provided on the screw 313, which passes through the right slider 211. The configuration component 32 includes a dynamic balancing detection device 321 fixedly connected to the top of the base plate 1. The right side of the dynamic balancing detection device 321 is fixedly connected to the impeller 215. The driving component includes a manual turntable 314 fixedly connected to the right side of the screw 313. The manual turntable 314 consists of a turntable and a handle. By setting the configuration unit 3, when the impeller 215 needs to be disassembled after the test is completed, the two ends of the impeller 215 are disassembled according to the previous steps. After the two ends of the impeller 215 are disassembled, the manual turntable 314 on the screw 313 can be rotated, so that the manual turntable 314 drives the screw 313 to rotate synchronously. During the rotation of the screw 313, it will be guided by the slide rail 311, driving the slider 211 on the right side and the entire set of devices on the slider 211 to move outward until one end of the impeller 215 is freed from the constraint of the turntable 214 and the guide roller 224 and suspended in the air. At this time, the impeller 215 can be easily removed from the device.

[0019] Dynamic balancing testing device 321: This is a device specifically designed for detecting and correcting the dynamic balance of impellers. It uses high-precision sensors to collect vibration signals and rotational speed data of the impeller in real time. The system analyzes and calculates the magnitude and location of the imbalance, and then automatically corrects it by removing or adding weight, ensuring the impeller reaches a preset balance accuracy. For example, the Shanghai Shenke YYW-1000 high-speed impeller balancing machine can handle workpieces weighing up to 1000kg with a diameter of 1600mm.

[0020] It should be noted that the control of the dynamic balancing detection device 321 in this application can all be achieved by using the program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be set using existing technologies, such as PLC.

[0021] A specific application of this embodiment is as follows: When using the device, if adjustments to the device are needed based on the size of the impeller 215, one end of the impeller 215 can be placed between the two turntables 214. Then, the nuts 220 on the two screws 213 are removed outwards. After the nuts 220 are removed, the limiting rings 217 and their limiting rods 218, which slide within the limiting grooves 216 of the two screws 213, are moved out of the limiting holes 219 corresponding to the slider 211. Subsequently, the two screws 213 can be moved away from or closer to each other, causing them to drive the rotating turntables 214 on them to adjust the distance between them. After adjusting the distance to fit the impeller 215, first reinsert the two limiting rings 217 and their limiting rods 218 into the corresponding limiting holes 219 of the slider 211 to limit and fix the two screws 213. Then tighten the two nuts 220 onto the two screws 213 to achieve secondary reinforcement of the screws 213. After completing the distance adjustment, if it is necessary to fix the impeller 215, the nuts 227 on the two screws 226 can be rotated downwards, so that the nuts 227 exert downward pressure on the sliding plate 223 on the outer wall of the screws 226. During the downward movement of the sliding plate 223, multiple sliding rods 221 will be used to fix it. To guide the movement, the guide roller 224 at the lower end of the slide bar 221 moves closer to and clamps the impeller 215, thereby fixing the impeller 215 between the two turntables 214. Simultaneously, as the slide plate 223 moves downward, it compresses the springs 225 on the outer walls of the slide bars 221, allowing the springs 225 to accumulate elastic potential energy, providing support for subsequent device reset. This design allows for flexible adaptation to impellers 215 of different sizes, enabling both fixing and rapid adjustment. Once the impeller 215 is fixed, the dynamic balancing detection device 321 can be activated. This device works in conjunction with the rotating turntables 214 on the two slide bars 211 and the two guide rollers 224 to drive the impeller 215. Stable rotation completes the dynamic balance test. When the test is complete and the impeller 215 needs to be disassembled, first disassemble both ends of the impeller 215 according to the previous steps. After the two ends of the impeller 215 are disassembled, the manual turntable 314 on the screw 313 can be rotated to make the manual turntable 314 drive the screw 313 to rotate synchronously. During the rotation of the screw 313, it will be guided by the slide rail 311, driving the slider 211 on the right and the entire set of devices on the slider 211 to move outward until one end of the impeller 215 is freed from the constraint of the turntable 214 and the guide roller 224 and suspended in the air. At this time, the impeller 215 can be easily removed from the device.

[0022] 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.

[0023] 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 testing device, comprising a base plate (1), characterized in that, Also includes: Adjustment part (2), the adjustment part (2) is disposed on the base plate (1); Configuration unit (3), the configuration unit (3) is provided on adjustment unit (2); The adjustment section (2) includes an adjustment assembly (21) mounted on the top of the base plate (1); and A limiting component (22) is mounted on an adjusting component (21); The adjustment assembly (21) includes two sliders (211) fixedly connected to the top of the base plate (1). Each slider (211) has a groove (212). Each groove (212) has two screws (213) slidably connected to it. Each screw (213) has a turntable (214) rotatably connected to one end of each screw (213) that is close to each other. Each turntable (214) has an impeller (215) on its outer wall. Each screw (213) has a limit groove (216) at one end that is far from each other. Each limit groove (216) has a limit ring (217) slidably connected to it. Each limit ring (217) has two limit rods (218) fixedly connected to one side of each limit ring (217) that is close to each other. Each slider (211) has a limit hole (219) on one side that is far from each other. Each screw (213) has a nut (220) threadedly connected to its outer wall. Among them, the ends of several limiting plugs (218) that are close to each other all extend into the corresponding limiting plug holes (219).

2. The centrifugal fan impeller dynamic balancing testing device according to claim 1, characterized in that, The configuration unit (3) includes a moving component (31) mounted on top of the base plate (1); and Configuration component (32) is disposed on top of base plate (1).

3. The centrifugal fan impeller dynamic balancing testing device according to claim 2, characterized in that, The limiting component (22) includes a plurality of slide rods (221) fixedly connected to the top of two sliders (211). The top of each slide rod (221) is fixedly connected to a plurality of top plates (222). The outer walls of each slide rod (221) are slidably connected to two slide plates (223). The bottom of each slide plate (223) is provided with a guide roller (224). The outer walls of each slide rod (221) are wound with springs (225). One end of each spring (225) is fixedly connected to the two sliders (211), and the other end of each spring (225) is fixedly connected to the two slide plates (223). Limiting components are provided on the two sliders (211). The outer walls of both guide rollers (224) are in contact with the impeller (215).

4. The centrifugal fan impeller dynamic balancing testing device according to claim 3, characterized in that, The moving component (31) includes a slide rail (311) fixedly connected to the top of the base plate (1). The outer surface of the slide rail (311) is fixedly connected to the slider (211) on the right side. A fixing plate (312) is fixedly connected to the top of the base plate (1). A screw (313) is rotatably connected to the slider (211) on the left side of the fixing plate (312). The screw (313) is threadedly connected to the slider (211) on the right side. A driving component is provided on the screw (313). Among them, screw three (313) passes through the slider (211) on the right side.

5. The centrifugal fan impeller dynamic balancing testing device according to claim 4, characterized in that, The configuration component (32) includes a dynamic balance detection device (321) fixedly connected to the top of the base plate (1), and the right side of the dynamic balance detection device (321) is fixedly connected to the impeller (215).

6. The centrifugal fan impeller dynamic balancing testing device according to claim 5, characterized in that, The limiting component includes two screw rods (226) fixedly connected to the top of the two sliders (211), and several screw rods (226) pass through the two slide plates (223) and are slidably connected to the two slide plates (223). Nuts (227) are threadedly connected to the outer walls of several screw rods (226). Among them, the bottom of several nuts (227) is in contact with two slide plates (223).

7. The centrifugal fan impeller dynamic balancing testing device according to claim 6, characterized in that, The drive unit includes a manual turntable (314) fixedly connected to the right side of the screw three (313). The manual turntable (314) consists of a turntable and a throttle.

Images