A water pump impeller dynamic balance detection device

Abstract

This utility model belongs to the field of water pump impeller testing technology, specifically a water pump impeller dynamic balancing testing device. It includes a testing box, and further includes: a support frame fixed around the outside of the testing box; a lifting assembly located at the bottom end of the support frame; a rotating assembly located inside the testing box; and a fixing assembly located on the rotating end of the rotating assembly. This utility model provides a water pump impeller dynamic balancing testing device that monitors the horizontal angle of the testing box using level sensors at the four corners inside the testing box. Simultaneously, it controls the operation of a first electric push rod, using the support legs as stress points to push the surrounding support frame to rise and fall, thereby adjusting the horizontal angle of the testing box. This allows for precise adjustment of the horizontal angle of the testing box, improving the accuracy and reliability of water pump impeller dynamic balancing testing. This method has a high degree of automation, reduces manual operation, improves efficiency, adapts to different working conditions, and ensures efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of water pump impeller testing technology, and in particular to a water pump impeller dynamic balance testing device. Background Technology

[0002] The dynamic balance of a water pump impeller is crucial to its performance and stability. An unbalanced impeller can cause vibration, noise, increased wear, and decreased efficiency, thus affecting the overall operation and service life of the pump. Therefore, detecting and adjusting the dynamic balance of the water pump impeller is a key step in ensuring the efficient and stable operation of the pump. With continuous technological advancements, dynamic balancing testing equipment is developing towards greater efficiency, real-time performance, and intelligence. This not only helps improve the operating efficiency of the pump but also reduces equipment maintenance costs, providing a strong guarantee for the long-term reliable operation of the pump.

[0003] A search revealed an existing patent (publication number: CN222837732U) that discloses a dynamic balancing testing device for a water pump impeller, including a testing mechanism. The testing mechanism includes a base, and an operating platform is fixedly connected to the top of the base. In this invention, a protective shell 1 and a protective shell 2 are rotatably connected to the top of a limiting plate. Before testing, a second motor is started to rotate the first protective shell so that its opening aligns with the calibration unit. The second protective shell is then rotated to cooperate with the first protective shell in shielding the testing unit, preventing the water pump impeller from detaching and popping out, thus preventing damage to the calibration unit and workers. This provides more stable protection and occupies less space. Activating an electric push rod brings the rubber pad against the water pump impeller body, stopping its rotation more quickly. After rotating the second protective shell inside the first protective shell, the calibration unit can be used to add weight to the water pump impeller body, improving the efficiency of water pump impeller testing and weight adjustment, and making it convenient to use.

[0004] However, in actual use, the above solution cannot adjust the dynamic angle of the equipment. Without this adjustment, the pump impeller dynamic balancing testing device will face several adverse effects. First, it cannot accurately locate the source of imbalance, making it impossible to effectively identify the problem location and affecting the accuracy of balancing adjustments. Second, the device's fault diagnosis capability will be limited, as some imbalance problems may only manifest at specific angles. Furthermore, the lack of angle adjustment will prevent the device from meeting the testing requirements under different operating conditions, resulting in unrepresentative test results. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing technologies cannot adjust the dynamic horizontal angle of equipment, and the dynamic balancing testing device for water pump impellers cannot meet the testing requirements under different working conditions, resulting in unrepresentative test results. Therefore, this invention proposes a dynamic balancing testing device for water pump impellers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dynamic balancing testing device for a water pump impeller includes a testing box and further includes:

[0008] The support frame is fixed to the outside of the testing box around its perimeter.

[0009] The lifting assembly is located at the bottom end of the support frame;

[0010] The rotating assembly is located inside the testing chamber;

[0011] A fixed component is mounted on the rotating end of the rotating component.

[0012] As a preferred technical solution of this application, the lifting assembly includes a first electric push rod fixed to the inner side of the bottom of the support frame, and the output end of the first electric push rod is fixedly connected to a support leg.

[0013] As a preferred technical solution of this application, the rotating assembly includes a motor fixed to the outer wall of the detection box and a worm gear rotating inside the detection box. The output end of the motor is fixedly connected to a worm, the worm is rotatably connected to the inner wall of the detection box, and the worm gear is meshed with the worm.

[0014] As a preferred technical solution of this application, the fixing component includes a second electric push rod fixed inside the worm gear. The second electric push rod is rotatably connected to the detection box. A balance disc is fixedly connected to the outer side of the top of the second electric push rod. A limit disc is fixedly connected to the top of the balance disc. A limit sleeve is fixedly connected to the top of the limit disc. A lifting rod is fixedly connected to the output end of the second electric push rod. Four first transmission rods are rotatably connected to the inner side of the lifting rod. A second transmission rod is rotatably connected to the outer side of the end of the first transmission rod away from the lifting rod. One end of the second transmission rod is rotatably connected to the limit sleeve. A fixing rod is slidably connected to the end of the second transmission rod away from the limit sleeve.

[0015] As a preferred technical solution of this application, the outer wall of the fixing rod is provided with a rubber layer, and the bottom of the fixing rod is slidably connected to the limiting plate.

[0016] As a preferred technical solution of this application, horizontal sensors are provided at the four corners inside the detection box.

[0017] Compared with the prior art, this utility model provides a water pump impeller dynamic balancing testing device, which has the following beneficial effects:

[0018] 1. The water pump impeller dynamic balancing testing device of this utility model monitors the horizontal angle of the testing box through horizontal sensors at the four corners inside the testing box, and simultaneously controls the operation of the first electric push rod to drive the surrounding support frame to rise and fall with the support feet as stress points, thereby adjusting the horizontal angle of the testing box. It can precisely adjust the horizontal angle of the testing box, thereby improving the accuracy and reliability of water pump impeller dynamic balancing testing. This method has a high degree of automation, reduces manual operation, improves efficiency, adapts to different working conditions, and ensures efficient operation.

[0019] 2. The water pump impeller dynamic balancing testing device of this utility model supports and fixes the water pump impeller through a fixing component, and simultaneously supports and fixes water pump impellers of different sizes by pushing outwards through two fixing rods on both sides, ensuring its stability during the dynamic balancing testing process. This design improves the accuracy of the test, reduces errors caused by impeller shaking, and flexibly adapts to impellers of different sizes, enhancing the versatility of the device, simplifying the operation process, saving time and manpower. The stable support can also reduce impeller damage and extend the service life of the water pump impeller and the testing equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic cross-sectional view of the detection box in this utility model. Figure 1 ;

[0023] Figure 4 This is a schematic cross-sectional view of the detection box in this utility model. Figure 2 ;

[0024] Figure 5 This is a partial three-dimensional structural diagram of the worm gear in this utility model;

[0025] Figure 6 This is a cross-sectional structural diagram of the limiting sleeve in this utility model;

[0026] Figure 7 This is a cross-sectional structural diagram of the lifting rod in this utility model.

[0027] In the picture:

[0028] 1. Testing box; 2. Support frame; 21. First electric push rod; 22. Support leg; 3. Motor; 31. Worm gear; 32. Worm wheel; 33. Balance disc; 34. Limiting disc; 4. Second electric push rod; 41. Limiting sleeve; 42. Lifting rod; 43. First transmission rod; 44. Second transmission rod; 45. Fixing rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 7 As shown, this water pump impeller dynamic balancing testing device includes a testing box 1, and also includes:

[0031] Support frame 2 is fixed around the outside of the test box 1, and the test box 1 supports and fixes the support frame 2 around the outside.

[0032] The lifting assembly is located at the bottom end of the support frame 2, and the support frame 2 supports the lifting assembly.

[0033] A rotating component is located inside the detection box 1, and the detection box 1 limits the rotation of the rotating component.

[0034] The fixed component is located on the rotating end of the rotating component. The rotating component supports the fixed component and drives the fixed component to rotate.

[0035] like Figure 1 and Figure 2 As shown, the lifting assembly includes a first electric push rod 21 fixed to the inner side of the bottom of the support frame 2. The support frame 2 supports and fixes the first electric push rod 21. The output end of the first electric push rod 21 is fixedly connected to a support leg 22. The first electric push rod 21 supports and fixes the support leg 22, and the support leg 22 provides a stress point for the first electric push rod 21.

[0036] like Figure 3 and Figure 4As shown, the rotating assembly includes a motor 3 fixed to the outer wall of the testing box 1, which supports and fixes the motor 3. The worm gear 32 inside the testing box 1 rotates and is limited by the testing box 1. A worm 31 is fixedly connected to the output end of the motor 3, which supports and fixes the worm 31. At the same time, the motor 3 drives the worm 31 to rotate. The worm 31 is rotatably connected to the inner wall of the testing box 1 and is limited by the testing box 1. The worm gear 32 is meshed with the worm 31. The motor 3 drives the worm 31 to rotate while simultaneously driving the worm gear 32 to rotate.

[0037] like Figure 6 and Figure 7 As shown, the fixing assembly includes a second electric push rod 4 fixed inside the worm gear 32. The worm gear 32 fixes the second electric push rod 4 and drives it to rotate. The second electric push rod 4 is rotatably connected to the detection box 1, which limits its movement. A balance disc 33 is fixedly connected to the top outer side of the second electric push rod 4, supporting and fixing it. The detection box 1 also limits its movement. A limit plate 34 is fixedly connected to the top of the balance disc 33, supporting and fixing it. A limit sleeve 41 is fixedly connected to the top of the limit plate 34, supporting and fixing it. The second electric push rod 4... A lifting rod 42 is fixedly connected to the outlet end. The lifting rod 42 is supported and fixed by a second electric push rod 4. At the same time, the second electric push rod 4 drives the lifting rod 42 to rise and fall. Four first transmission rods 43 are rotatably connected to the inner side of the lifting rod 42. The lifting rod 42 limits one end of the first transmission rod 43. A second transmission rod 44 is rotatably connected to the outer side of the first transmission rod 43 away from the lifting rod 42. The first transmission rod 43 limits the middle section of the second transmission rod 44. One end of the second transmission rod 44 is rotatably connected to the limiting sleeve 41. A fixed rod 45 is slidably connected to the end of the second transmission rod 44 away from the limiting sleeve 41. One end of the second transmission rod 44 is rotatably connected to the limiting sleeve 41, and the other end is slidably connected to the fixed rod 45.

[0038] The outer wall of the fixing rod 45 is provided with a rubber layer, which buffers the fixing rod 45 and the water pump impeller. The bottom of the fixing rod 45 is slidably connected to the limiting plate 34, which limits the bottom of the fixing rod 45.

[0039] The four corners of the detection box 1 are equipped with horizontal sensors to detect the horizontal angle of the detection box 1. At the same time, the four horizontal sensors continuously monitor the angle change in the horizontal direction. Each sensor is responsible for recording the tilt of the impeller at a specific position, accurately reflecting whether the impeller is unbalanced. The sensors transmit the collected horizontal angle data to the central processing unit. The computer or control system analyzes the data in real time and compares the data of each sensor with the preset balance standard.

[0040] Specifically, when using this water pump impeller dynamic balancing testing device: the water pump impeller is sleeved on the outside of the fixed rod 45. Then, the second electric push rod 4, with the limit plate 34 as the stress point, drives the lifting rod 42 to move to the top. At the same time, the first transmission rod 43 drives the middle section of the second transmission rod 44 to rotate around the connection point between the lifting rod 42 and the second transmission rod 44, supporting the end of the second transmission rod 44 away from the lifting rod 42 outward, while simultaneously driving the fixed rod 45 to move outward, thereby supporting and fixing the water pump impeller; then, multiple tests are conducted inside the testing box 1. A horizontal sensor monitors the horizontal angle of the detection box 1, and then controls the first electric push rod 21 around the perimeter to support the support frame 2 with the support foot 22 as the stress point. By individually controlling the extension and retraction of the first electric push rod 21 at different positions, the horizontal angle of the detection box 1 is adjusted. The motor 3 drives the worm gear 31 to rotate, and the worm gear 31 drives the worm wheel 32 to rotate. Then, the worm wheel 32 drives the second electric push rod 4 and the balance disc 33 to rotate, thereby driving the water pump impeller to rotate, in order to detect the dynamic balance of the water pump impeller.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dynamic balancing testing device for a water pump impeller, comprising a testing box (1), characterized in that, Also includes: Support frame (2) is fixed around the outside of the test box (1); The lifting assembly is located at the bottom end of the support frame (2); The rotating component is located inside the detection box (1); A fixed component is mounted on the rotating end of the rotating component.

2. The water pump impeller dynamic balancing testing device according to claim 1, characterized in that, The lifting assembly includes a first electric push rod (21) fixed to the inner side of the bottom of the support frame (2), and the output end of the first electric push rod (21) is fixedly connected to a support leg (22).

3. The water pump impeller dynamic balancing testing device according to claim 2, characterized in that, The rotating assembly includes a motor (3) fixed to the outer wall of the test box (1) and a worm gear (32) rotating inside the test box (1). The output end of the motor (3) is fixedly connected to a worm (31). The worm (31) is rotatably connected to the inner wall of the test box (1), and the worm gear (32) is meshed with the worm (31).

4. The water pump impeller dynamic balancing testing device according to claim 3, characterized in that, The fixing assembly includes a second electric push rod (4) fixed inside the worm gear (32), the second electric push rod (4) being rotatably connected to the detection box (1), a balance disc (33) being fixedly connected to the top outer side of the second electric push rod (4), a limit disc (34) being fixedly connected to the top of the balance disc (33), a limit sleeve (41) being fixedly connected to the top of the limit disc (34), a lifting rod (42) being fixedly connected to the output end of the second electric push rod (4), four first transmission rods (43) being rotatably connected to the inner side of the lifting rod (42), a second transmission rod (44) being rotatably connected to the outer side of the first transmission rod (43) away from the lifting rod (42), a limit sleeve (41) being rotatably connected to one side of the second transmission rod (44), and a fixing rod (45) being slidably connected to the side of the second transmission rod (44) away from the limit sleeve (41).

5. The water pump impeller dynamic balancing testing device according to claim 4, characterized in that, The outer wall of the fixing rod (45) is provided with a rubber layer, and the bottom of the fixing rod (45) is slidably connected to the limiting plate (34).

6. The water pump impeller dynamic balancing testing device according to claim 5, characterized in that, The detection box (1) is equipped with horizontal sensors at the four corners inside.

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