Centrifugal pump impeller detection device

Abstract

The invention discloses a centrifugal pump impeller detection device, and particularly relates to the technical field of impeller detection.The centrifugal pump impeller detection device comprises a support, a meshing assembly is fixedly connected to the middle of the upper end of the support, an air blowing assembly is fixedly connected to the left side of the meshing assembly, and a first matching assembly is fixedly connected to the bottom end of the meshing assembly; the right side of the first matching assembly is fixedly connected with a control table, and the rear portion of the control table is fixedly connected with a transmission assembly. According to the centrifugal pump impeller detection device, pressing die assembly, impact force testing, blow-drying and the like are integrated in one system, full-automatic detection of a centrifugal pump impeller is achieved, the working efficiency and the testing precision are improved, an operator only needs to simply debug a console, and the detection efficiency is improved. Therefore, the system can automatically complete the whole process from pressing to testing to blow-drying, errors and time cost caused by manual operation are greatly reduced, meanwhile, the abrasion resistance and impact resistance of the impeller in the sand-containing water environment are guaranteed, and consistency and reliability of product quality are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of impeller testing technology, and in particular to a centrifugal pump impeller testing device. Background Technology

[0002] In many industrial fields such as chemical, petroleum, and coal mining, centrifugal pumps are key fluid transport equipment. Their performance and reliability are directly related to the stability and efficiency of the entire production process. As the core component of centrifugal pumps, the quality and performance of the impeller play a decisive role. The geometry, dimensional accuracy, and surface quality of the impeller not only affect the head, flow rate, and efficiency of the centrifugal pump, but are also closely related to the pump's vibration, noise, and service life.

[0003] With the increasing scale and automation of industrial production, the demand for testing centrifugal pump impellers is also increasing, and batch testing is gradually emerging. Traditional manual testing methods can no longer meet the requirements of efficient, accurate, and large-scale testing in modern industrial production. On the one hand, manual testing is inefficient, cumbersome, and time-consuming, and cannot meet the rapid testing needs of the production line. On the other hand, manual testing is highly subjective, and measurement errors exist between different testers, making it difficult to guarantee the consistency and reliability of test results, which can easily lead to unstable quality control.

[0004] During operation, centrifugal pump impellers are subjected to liquid impact, wear, corrosion, and complex stress, which can easily lead to damage such as wear, corrosion, cracks, and deformation. In addition, factors such as the manufacturing precision, material quality, and assembly quality of the impeller also have a significant impact on its performance. In terms of material quality, if the impeller is made of materials with insufficient strength, poor wear resistance, or poor corrosion resistance, it will wear out rapidly during use, shortening the impeller's service life. Summary of the Invention

[0005] The main objective of this invention is to provide a centrifugal pump impeller testing device that can effectively solve the problem of difficulty in batch testing the strength and wear resistance of impeller materials.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A centrifugal pump impeller detection device includes a support, a meshing component fixedly connected to the middle of the upper end of the support, an air blowing component fixedly connected to the left side of the meshing component, a mating component one fixedly connected to the bottom end of the meshing component, a control console fixedly connected to the right side of the mating component one, and a transmission component fixedly connected to the rear of the control console.

[0007] Preferably, the engagement assembly includes a hydraulic cylinder, the output end of which is fixedly connected to a hydraulic rod through the bottom of the support, the bottom end of which is fixedly connected to a connecting assembly, and four connecting posts are fixedly connected to the inner cavity of the support, with springs wound around the bottom of the outer surfaces of the four connecting posts.

[0008] Preferably, the connecting assembly includes a connecting plate, a fixing block is fixedly connected to the bottom end of the connecting plate, four pressure rods arranged in a ring array are fixedly connected to the bottom end of the fixing block, and a receiving groove is provided on the right side of the connecting plate.

[0009] Preferably, the air blowing assembly includes an air compressor, the output end of which is fixedly connected to a delivery pipe, the bottom of which passes through the support and the bottom of the connecting plate.

[0010] Preferably, the first cooperating component includes a base, a detection component is fixedly connected to the upper rear part of the base, a sliding component is fixedly connected to the front end of the detection component, a collection chamber is opened at the upper front part of the base, and an impeller is provided at the upper end of the sliding component.

[0011] Preferably, the detection component includes a water pump, an input pipe is fixedly connected to the input end of the water pump, an output pipe is fixedly connected to the output end of the water pump, the output pipe is fixedly connected to the sliding component, a return pipe is fixedly connected to the left rear part of the sliding component, and a liquid storage chamber is opened at the rear of the base.

[0012] Preferably, the sliding assembly includes a sliding plate, a fixed shell is slidably connected to the bottom of the sliding plate, a fixed column is slidably connected to the inner cavity of the fixed shell, four fixed rods are fixedly connected to the bottom of the outer surface of the fixed column, all four fixed rods are fixedly connected to the base, and a transmission assembly is slidably connected to the bottom of the fixed column.

[0013] Preferably, the transmission assembly includes a sliding plate 2, four connecting rods 1 are fixedly connected to the bottom of the sliding plate 2, and a power rod is fixedly connected to the four connecting rods 1. A spring 3 is wound around the bottom of the outer surface of the power rod, and a connecting rod 2 is rotatably connected to the bottom of the spring 3. A fixed rod 2 is rotatably connected to the middle of the connecting rod 2. Both the front and rear ends of the fixed rod 2 are fixedly connected to the base. A movable plate is movably connected to the right side of the connecting rod 2. A fixed plate is rotatably connected to the other end of the movable plate, and a transmission disc is fixedly connected to the other end of the fixed plate.

[0014] Preferably, the transmission component includes a bracket, a rotating column is rotatably connected to the upper end of the bracket, a connecting component is fixedly connected to the middle of the rotating column, two transmission belts are wound around the outer surface of the connecting component, and the other side of each of the two transmission belts is wound around a transmission disc, and a storage bucket is fixedly connected to the upper end of the bracket.

[0015] Preferably, the connecting assembly includes a first rotating wheel, the inner surface of which is fixedly connected to the middle of the outer surface of the rotating column. A lever plate is fixedly connected to both the front and rear sides of the first rotating wheel, and the outer surface of the lever plate is wound around one side of the transmission belt. Two sliding rods are fixedly connected to the upper part of the bracket, and a pusher block is slidably connected to the outer surfaces of the two sliding rods. Two springs are fixedly connected to the left side of the pusher block, and the left ends of the two springs are fixedly connected to the right end of the base. A second rotating wheel is rotatably connected to the right side of the pusher block, and the outer surface of the second rotating wheel cooperates with the lever plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By integrating multiple functional modules such as pressing and molding, impact testing, and drying into one system, the centrifugal pump impeller is fully automated, improving work efficiency and testing accuracy. Operators only need to make simple adjustments to the control panel, and the system can automatically complete the entire process from pressing to testing to drying, greatly reducing human error and time costs. At the same time, it ensures the wear resistance and impact resistance of the impeller in sandy water environments, ensuring the consistency and reliability of product quality.

[0017] 2. The rotation of the transmission disc, via the transmission belt, drives the first rotating wheel to rotate. This, in turn, utilizes the cooperation of the actuating plate and the second rotating wheel to move the pusher block. During this movement, the pusher block accurately propels the centrifugal pump impeller to the left to the detection position, ensuring the impeller smoothly enters the detection location for impact force testing. This process enables automatic impeller transfer and positioning, improving the automation and efficiency of the testing process, reducing errors and uncertainties caused by manual operation. It provides an efficient and accurate solution for batch testing of centrifugal pump impellers, contributing to improved production efficiency and product quality control. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the overall structure of the meshing assembly of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 This is a schematic diagram of the overall structure of the mating component of the present invention; Figure 6 This is a partial structural cross-sectional view of the detection component of the present invention; Figure 7 This is a schematic diagram of the overall structure of the sliding component of the present invention; Figure 8 This is a schematic diagram of the overall structure of the transmission assembly of the present invention; Figure 9 This is a schematic diagram of the overall structure of the transmission component of the present invention; Figure 10 This is a schematic diagram of the overall structure of the connecting component of the present invention.

[0019] In the diagram: 1. Support; 2. Control console; 3. Transmission assembly; 31. Bracket; 32. Rotating column; 33. Connecting assembly; 331. Rotating wheel one; 332. Actuating plate; 333. Rotating wheel two; 334. Pushing block; 335. Spring one; 336. Sliding rod; 34. Storage bin; 35. Transmission belt; 4. Engaging assembly; 41. Hydraulic cylinder; 42. Hydraulic rod; 43. Connecting column; 44. Spring two; 45. Connecting assembly; 451. Connecting plate; 452. Receiving groove; 453. Fixing block; 454. Pressure rod; 5. Air blowing assembly; 51. Air compressor; 52. Conveying pipe; 6. Attachment Component 1; 61. Base; 62. Detection component; 621. Water pump; 622. Input pipe; 623. Output pipe; 624. Liquid storage chamber; 625. Return pipe; 63. Sliding component; 631. Sliding plate 1; 632. Fixed shell; 633. Fixed column; 634. Fixed rod 1; 635. Transmission component; 6351. Sliding plate 2; 6352. Connecting rod 1; 6353. Power rod; 6354. Spring 3; 6355. Connecting rod 2; 6356. Fixed rod 2; 6357. Movable plate; 6358. Fixed plate; 6359. Transmission disc; 64. Collection chamber; 65. Impeller. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1, please refer to Figure 1 Figure 2 As shown, a centrifugal pump impeller detection device includes a support 1, a meshing component 4 is fixedly connected to the middle of the upper end of the support 1, an air blowing component 5 is fixedly connected to the left side of the meshing component 4, a mating component 6 is fixedly connected to the bottom end of the meshing component 4, a control console 2 is fixedly connected to the right side of the mating component 6, and a transmission component 3 is fixedly connected to the rear of the control console 2.

[0022] In the specific implementation of this solution, the operator first needs to perform preliminary debugging of the control console 2 according to the actual situation. Then, by adding an appropriate amount of centrifugal pump impeller to be tested into the transmission component 3, the meshing component 4 will press down on the impeller to be tested under the control of the control console 2. Meanwhile, the test component installed inside the mating component 6 will continuously inject water containing sand into the mating component 6 to conduct an impact test on the item to be tested. After the test is completed, the air blowing component 5 installed on the left side of the meshing component 4 will blow the sand on the surface of the tested item dry. Then, the operator can take out the tested item.

[0023] Furthermore, the console 2 mentioned above is a conventional technical means in the prior art. In this solution, we only utilize its control function and will not elaborate on its working principle. By integrating multiple functional modules such as pressing and molding, impact testing, and drying into one system, the centrifugal pump impeller is fully automated, improving work efficiency and testing accuracy. Operators only need to make simple adjustments to the control panel 2, and the system can automatically complete the entire process from pressing to testing to drying, greatly reducing human error and time costs. At the same time, it ensures the wear resistance and impact resistance of the impeller in sandy water environments, ensuring the consistency and reliability of product quality.

[0024] For further details, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the meshing assembly 4 includes a hydraulic cylinder 41. The output end of the hydraulic cylinder 41 passes through the bottom of the support 1 and is fixedly connected to a hydraulic rod 42. The bottom end of the hydraulic rod 42 is fixedly connected to a connecting assembly 45. Four connecting columns 43 are fixedly connected to the inner cavity of the support 1. Springs 44 are wound around the bottom of the outer surface of each of the four connecting columns 43. The connecting assembly 45 includes a connecting plate 451. A fixing block 453 is fixedly connected to the bottom end of the connecting plate 451. Four pressure rods 454 arranged in a ring array are fixedly connected to the bottom end of the fixing block 453. A receiving groove 452 is opened on the right side of the connecting plate 451. The air blowing assembly 5 includes an air compressor 51. The output end of the air compressor 51 is fixedly connected to a conveying pipe 52. The bottom of the conveying pipe 52 passes through the support 1 and the bottom of the connecting plate 451. The mating assembly 6 includes a base 61. A detection assembly 62 is fixedly connected to the rear of the upper end of the base 61. A sliding assembly 63 is fixedly connected to the front end of the detection assembly 62. A collection chamber 64 is opened at the front of the upper end of the base 61. An impeller blade 65 is provided on the upper end of the sliding assembly 63.

[0025] In a further embodiment of this invention, when it is necessary to test the centrifugal pump impeller, only the internal parameters of the control console 2 need to be adjusted. The control console 2 will then control the hydraulic cylinder 41 to output power. When the hydraulic cylinder 41 outputs power, the hydraulic rod 42 will cause the connecting plate 451 to move downwards. During the downward movement of the connecting plate 451, the fixing block 453 fixedly connected to the bottom of the connecting plate 451 will also move downwards. Subsequently, the four pressure rods 454 installed at the bottom of the fixing block 453 will push the internal structure of the sliding assembly 63 to form a mold. The sliding assembly 63 will then slide downwards and open the channel, allowing liquid to enter. This seals the space for testing the centrifugal pump impeller. At this time, the control console 2 will... The system controls the detection component 62 to extract the internal test liquid and continuously test the impact force on the impeller. After the test time is reached, the control console 2 will control the detection component 62 to stop. Then, the air blowing component 5 installed on the left side of the meshing component 4 will open and flush the centrifugal pump impeller in a burst, causing particles on the surface of the centrifugal pump to fall off and be blown into the inner cavity of the collection chamber 64. The operator can classify the centrifugal pump impeller after the test according to different test times, so as to provide an important basis for subsequent damage analysis. During the test, as the impeller wears in sandy water for different periods of time, the operator can conduct a detailed assessment of the impeller's wear resistance and damage resistance. Furthermore, the air compressor 51 mentioned above is a conventional technology in the prior art. In this solution, it is only used to blow air onto the centrifugal pump impeller in a burst form. Its working principle and wiring connection will not be elaborated on here. The hydraulic cylinder 41 mentioned above is a conventional technical means in the prior art. In this solution, it only utilizes its transmission function, and its working principle will not be elaborated further. By adjusting the internal parameters of console 2, the entire testing process can be completed automatically, from hydraulic system-driven mold closing to liquid injection, impact force testing, and post-test drying and cleaning. This not only reduces the complexity of manual operation but also improves the accuracy and consistency of testing. In particular, by classifying impellers at different testing time periods, operators can assess impeller durability based on wear conditions, further optimizing the design and performance of the centrifugal pump. In addition, the automated cleaning and particle collection system ensures the cleanliness of the impeller after testing, preventing residual grit from affecting subsequent testing or operations, significantly improving work efficiency, ensuring test quality, and providing reliable data support for subsequent product development and quality control.

[0026] Example 2 further elaborates on how to simultaneously perform mold closing and transmission on the centrifugal pump impeller, building upon Example 1. For further details, please refer to [link to example 1]. Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the detection component 62 includes a water pump 621, an input pipe 622 is fixedly connected to the input end of the water pump 621, an output pipe 623 is fixedly connected to the output end of the water pump 621, the output pipe 623 is fixedly connected to the sliding component 63, a return pipe 625 is fixedly connected to the left rear part of the sliding component 63, and a liquid storage chamber 624 is opened at the rear of the base 61.

[0027] During the implementation process, when the fixed block 453 and the sliding component 63 are closed, the control console 2 will start the water pump 621. Then, the input end of the water pump 621 will draw liquid from the inner cavity of the storage chamber 624 and discharge it through the output pipe 623 fixedly connected to the output end. The discharged liquid will impact the centrifugal pump impeller, causing the centrifugal pump impeller to rotate. Then, it will enter the inner cavity of the storage chamber 624 through the return pipe 625 to form a circulation. The operator can control the test time through the control console 2 according to the actual situation. The water pump 621 mentioned above is a conventional technical means in the prior art. In this solution, it is only used to transfer liquid. Its working principle and circuit connection will not be elaborated here. The circulating water system of pump 621 enables efficient impact force testing of the centrifugal pump impeller, and the control console 2 enables precise test time control. The start-up of pump 621 and liquid circulation ensure continuous impact of liquid on the impeller, simulating the impact and wear process in actual working conditions. This helps to evaluate the wear resistance and impact resistance of the impeller during long-term use. The liquid recovery design of return pipe 625 reduces liquid waste, maintains the stability and consistency of the test, and avoids the impact of insufficient liquid on test results. In addition, operators can flexibly adjust the test time according to actual needs to obtain more accurate wear data, providing strong support for subsequent product optimization and quality inspection.

[0028] Please see further. Figure 7 and Figure 8As shown, the sliding assembly 63 includes a sliding plate 631, a fixed shell 632 slidably connected to the bottom of the sliding plate 631, a fixed post 633 slidably connected to the inner cavity of the fixed shell 632, and four fixed rods 634 fixedly connected to the bottom of the outer surface of the fixed post 633. All four fixed rods 634 are fixedly connected to the base 61. A transmission assembly 635 is slidably connected to the bottom of the fixed post 633. The transmission assembly 635 includes a sliding plate 6351, four connecting rods 6352 fixedly connected to the bottom of the sliding plate 6351. 2. A power rod 6353 is fixedly connected to the base 61. A spring 6354 is wound around the bottom of the outer surface of the power rod 6353. A connecting rod 6355 is rotatably connected to the bottom of the spring 6354. A fixed rod 6356 is rotatably connected to the middle of the connecting rod 6355. Both ends of the fixed rod 6356 are fixedly connected to the base 61. A movable plate 6357 is movably connected to the right side of the connecting rod 6355. A fixed plate 6358 is rotatably connected to the other end of the movable plate 6357. A transmission disc 6359 is fixedly connected to the other end of the fixed plate 6358.

[0029] In this implementation, when the hydraulic cylinder 41 drives the hydraulic rod 42 to descend, the four spring-loaded components installed at the bottom of the sliding plate 631 will descend, and the four pressure rods 454 will cause the sliding plate 6351 to descend. Simultaneously, the descent of the sliding plate 6351 will drive the four connecting rods 6352 fixedly connected to the bottom to descend. During the descent of the four connecting rods 6352, the power rod 6353 will descend. At the same time, during the descent, one side of the connecting rod 6355, which is rotatably connected to the bottom, will follow the power rod 6353. After the mold closing test is completed, the spring 6354 wound around the outer surface of the power rod 6353 will, according to its own elasticity, drive the connecting rod 6355 upward. Then, the connecting rod... As one side of the sliding plate 6355 moves upward, the other side will press down, simultaneously actuating the movable plate 6357. When the movable plate 6357 is actuated, it will exert a force on the fixed plate 6358, thereby causing the transmission disc 6359, which is fixedly connected to the fixed plate 6358, to rotate slightly and generate power. As the sliding plate 6351 descends, the fixed column 633 is fixed inside the base 61 by four fixed rods 634. At this time, the middle part of the centrifugal pump impeller will slide along the outer surface of the fixed column 633. Subsequently, the input end of the water pump 621 impacts the surface of the centrifugal pump impeller through the output pipe 623. During the impact, the centrifugal pump impeller rotates, and the impacted liquid will flow back into the inner cavity of the storage chamber 624 from the return pipe 625 to complete the circulation. The "movement" mentioned above, where the right side of the connecting rod 6355 is movably connected to the movable plate 6357, means that one side of the connecting rod 6355 is in contact with the movable plate 6357, but it is not sliding or fixed. When one side of the connecting rod 6355 is raised, the other side will descend. During the descent of the other side, the transmission disc 6359 will be driven to rotate, thereby transporting the centrifugal pump impeller.

[0030] Hydraulic cylinder 41 drives hydraulic rod 42, which in turn drives components such as the rebound assembly and sliding plate 6351 to achieve a complex and orderly action process. Combined with the linkage of components such as power rod 6353, connecting rod 6355, and spring 6354, as well as the power transmission between movable plate 6357, fixed plate 6358, and transmission disc 6359, not only is stable rotation drive of the centrifugal pump impeller achieved, but also the cyclic impact mechanism formed by water pump 621, output pipe 623, return pipe 625, and liquid storage chamber 624 ensures that the impeller receives sufficient liquid impact during the test, simulating the real working environment and facilitating accurate detection of impeller performance. At the same time, the stability of the overall structure is ensured by components such as fixed column 633 and fixed rod 634. The entire design effectively improves the efficiency and accuracy of centrifugal pump impeller testing, providing a strong guarantee for the quality control and performance optimization of centrifugal pump impellers.

[0031] Example 3: This example further achieves the purpose of driving the centrifugal pump impeller based on Examples 1 and 2. Please refer to [link / reference]. Figure 9 and Figure 10 As shown, the transmission component 3 includes a bracket 31, a rotating column 32 rotatably connected to the upper end of the bracket 31, a connecting component 33 fixedly connected to the middle of the rotating column 32, two transmission belts 35 wound around the outer surface of the connecting component 33, and the other side of each of the two transmission belts 35 wound around the transmission disc 6359. A storage bin 34 is fixedly connected to the upper end of the bracket 31. The connecting component 33 includes a rotating wheel 331, the inner surface of which is fixedly connected to the middle of the outer surface of the rotating column 32. The rotating wheel 331 has two front and rear sides. Each component is fixedly connected to a toggle plate 332. The outer surface of the toggle plate 332 is wound around one side of the transmission belt 35. Two sliding rods 336 are fixedly connected to the upper part of the bracket 31. The outer surfaces of the two sliding rods 336 are slidably connected to a pusher block 334. Two springs 335 are fixedly connected to the left side of the pusher block 334. The left ends of the two springs 335 are fixedly connected to the right end of the base 61. A rotating wheel 333 is rotatably connected to the right side of the pusher block 334. The outer surface of the rotating wheel 333 cooperates with the toggle plate 332.

[0032] In this embodiment, when the transmission disc 6359 rotates, the two transmission belts 35 connected to its front and rear sides will drive the rotating wheel 331 to rotate. When the rotating wheel 331 rotates, the actuating plate 332 fixedly connected to its outer surface will actuate the rotating wheel 333 connected to the right side of the pusher block 334, thereby causing the pusher block 334 to move to the left. During the process of the pusher block 334 moving to the left, its upper part will push the centrifugal pump impeller to move, so that the centrifugal pump impeller enters the detection area to perform impact force detection. The rotation of the transmission disc 6359, via the transmission belt 35, drives the rotating wheel 331 to rotate. Then, through the cooperation of the actuating plate 332 and the rotating wheel 333, the pusher block 334 is moved. During the movement, the pusher block 334 can accurately push the centrifugal pump impeller to the left to the detection position, thus ensuring that the centrifugal pump impeller can smoothly enter the detection position for impact force detection. This action process can realize the automatic transmission and positioning of the impeller, improve the automation and efficiency of the detection process, reduce the errors and uncertainties caused by manual operation, and provide an efficient and accurate solution for the batch detection of centrifugal pump impellers, which is conducive to improving production efficiency and product quality control.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal pump impeller inspection device comprising a support (1), characterized in that: The support (1) upper end middle part is fixedly connected with the engagement assembly (4), the engagement assembly (4) left side is fixedly connected with the blowing assembly (5), the engagement assembly (4) bottom is fixedly connected with the cooperation assembly one (6), the cooperation assembly one (6) right side is fixedly connected with the control console (2), the control console (2) rear part is fixedly connected with the transmission assembly (3).

2. A centrifugal pump impeller inspection device according to claim 1, characterized in that: The engagement assembly (4) includes hydraulic cylinder (41), the hydraulic cylinder (41) output end is fixedly connected with hydraulic rod (42) through the support (1) bottom, the hydraulic rod (42) bottom is fixedly connected with the connecting assembly (45), the support (1) inner cavity is fixedly connected with four connecting columns (43), four the connecting column (43) outer surface bottom is wound with spring two (44) and is connected.

3. A centrifugal pump impeller inspection device according to claim 2, wherein: The connecting assembly (45) includes connecting plate (451), the connecting plate (451) bottom is fixedly connected with fixed block (453), the fixed block (453) bottom is fixedly connected with four pressure rods (454) of annular array, the connecting plate (451) right side is provided with containing groove (452).

4. A centrifugal pump impeller inspection device according to claim 3, wherein: The blowing assembly (5) includes air compressor (51), the air compressor (51) output end is fixedly connected with the conveying pipe (52), the conveying pipe (52) bottom is fixedly connected with the connecting plate (451) through the support (1).

5. A centrifugal pump impeller inspection device according to claim 1, wherein: The cooperation assembly one (6) includes base (61), the base (61) upper end rear part is fixedly connected with detection assembly (62), the detection assembly (62) front end is fixedly connected with sliding assembly (63), the base (61) upper end front part is provided with collection warehouse (64), the sliding assembly (63) upper end is provided with impeller blade (65).

6. A centrifugal pump impeller inspection device according to claim 5, wherein: The detection assembly (62) includes water pump (621), the water pump (621) input end is fixedly connected with input pipe (622), the water pump (621) output end is fixedly connected with output pipe (623), the output pipe (623) is fixedly connected with sliding assembly (63), the sliding assembly (63) rear left side is fixedly connected with backflow pipe (625), the base (61) rear part is provided with liquid storage cavity (624).

7. A centrifugal pump impeller inspection device according to claim 5, wherein: The sliding assembly (63) includes sliding plate one (631), the sliding plate one (631) bottom is slidably connected with fixed shell (632), the fixed shell (632) inner cavity is slidably connected with fixed column (633), the fixed column (633) outer surface bottom is fixedly connected with four fixed rod one (634), four the fixed rod one (634) is fixedly connected with base (61), the fixed column (633) bottom is slidably connected with transmission assembly (635).

8. A centrifugal pump impeller inspection device according to claim 7, wherein: The transmission assembly (3) includes a support (31), the support (31) upper end is rotatably connected with a rotating column (32), the rotating column (32) middle part is fixedly connected with a connection assembly (33), the connection assembly (33) outer surface is connected with two transmission belts (35), two transmission belts (35) the other side is connected with transmission disc (6359) with winding, the support (31) upper end is fixedly connected with a storage bucket (34).

9. A centrifugal pump impeller inspection device according to claim 8, wherein: The connection assembly (33) includes a rotating wheel one (331), the rotating wheel one (331) inner surface and rotating column (32) outer surface middle part are fixedly connected, the rotating wheel one (331) front and back both sides are fixedly connected with a push plate (332), the push plate (332) outer surface and transmission belt (35) one side are connected with winding, the support (31) upper part is fixedly connected with two sliding rods (336), two sliding rods (336) outer surface are slidably connected with a pushing block (334), the pushing block (334) left side is fixedly connected with two springs one (335), two springs one (335) left end is fixedly connected with the right end of base (61), the pushing block (334) right side is rotatably connected with a rotating wheel two (333), the rotating wheel two (333) outer surface is matched with push plate (332).

10. A centrifugal pump impeller inspection device according to claim 9, wherein: The transmission assembly (3) includes a support (31), the support (31) upper end is rotatably connected with a rotating column (32), the rotating column (32) middle part is fixedly connected with a connection assembly (33), the connection assembly (33) outer surface is connected with two transmission belts (35), two transmission belts (35) the other side is connected with transmission disc (6359) with winding, the support (31) upper end is fixedly connected with a storage bucket (34). The connection assembly (33) includes a rotating wheel one (331), the rotating wheel one (331) inner surface and rotating column (32) outer surface middle part are fixedly connected, the rotating wheel one (331) front and back both sides are fixedly connected with a push plate (332), the push plate (332) outer surface and transmission belt (35) one side are connected with winding, the support (31) upper part is fixedly connected with two sliding rods (336), two sliding rods (336) outer surface are slidably connected with a pushing block (334), the pushing block (334) left side is fixedly connected with two springs one (335), two springs one (335) left end is fixedly connected with the right end of base (61), the pushing block (334) right side is rotatably connected with a rotating wheel two (333), the rotating wheel two (333) outer surface is matched with push plate (332).

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