A dry vacuum pump rotor blade on-site strength detection device

Abstract

This invention belongs to the field of strength testing technology, specifically a field strength testing device for dry vacuum pump rotor blades. It includes a base, an adjustment box on top of the base, a lifting assembly between the base and the adjustment box, symmetrical extension plates at the bottom of the adjustment box, lifting wheels fixedly mounted on one end of each extension plate, a column fixedly mounted on the top of the base, a lower clamp fixedly mounted on the top of the column, an upper clamp above the lower clamp, and an elastic component on one side of the upper clamp. This invention places the testing assembly below both ends of the blade, initially in contact with the blade. When the lifting wheels compress the blade, the testing assembly can accurately measure its own movement distance. Based on this precise displacement data, it can accurately determine whether the blade's compressive strength meets the standard, thus realizing blade strength testing. This quantitative testing method avoids errors from subjective judgment, making the test results more objective and accurate.

Description

Technical Field

[0001] This invention belongs to the field of strength testing technology, specifically a field strength testing device for dry vacuum pump rotor blades. Background Technology

[0002] In the internal structure of a dry vacuum pump, the rotor blade is one of the core components. The performance improvement of the rotor blade of a dry vacuum pump is highly dependent on the application of new materials. By using carbon fiber composite materials, high-performance resins, die-cast aluminum alloys, and special coatings (such as PEEK, Hastelloy, composite coatings, etc.), the rotor blades of dry vacuum pumps have significantly enhanced corrosion resistance, wear resistance, mechanical strength, and thermal stability. This enables them to adapt to harsh working conditions such as high loads, corrosive media, and oil-free clean environments, while reducing energy consumption and maintenance costs. This promotes the efficient and reliable operation of dry vacuum pumps in fields such as semiconductor manufacturing, petrochemical processes, and pharmaceuticals.

[0003] Currently, although there are strict production processes and quality control procedures in the production of dry vacuum pump rotor blades, there is a relative lack of specialized testing devices for blade strength. Most manufacturers mainly rely on raw material quality control, dimensional accuracy testing during production, and simple visual inspection to indirectly ensure blade quality. However, these methods have certain limitations and cannot directly and accurately assess the strength performance of the blades.

[0004] Therefore, the present invention provides a field strength testing device for dry vacuum pump rotor blades. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a field strength testing device for a dry vacuum pump rotor blade, comprising a base, an adjustment box above the base, a lifting assembly between the base and the adjustment box, extension plates symmetrically arranged at the bottom of the adjustment box, lifting wheels fixedly installed at one end of each extension plate, a column fixedly installed at the top of the base, a lower clamp fixedly installed at the top of the column, an upper clamp above the lower clamp, an elastic assembly on one side of the upper clamp, and detection assemblies on both sides of the column. Each detection assembly includes a displacement sensor, which is used to detect the deformation of the blade.

[0007] Preferably, the detection assembly includes a telescopic rod, which is fixedly installed on the top of the base. A detection wheel is fixedly installed at one end of the telescopic rod. An elastic element A is fixedly installed between the detection wheel and the base and on the outside of the telescopic rod. The displacement sensor is fixedly installed at the bottom of the detection wheel.

[0008] Preferably, the lifting assembly includes lifting guide rails, two of which are symmetrically fixedly installed on the top of the base, a lifting frame is installed between the two lifting guide rails, the bottom of the lifting frame is fixedly connected to the top of the adjustment box, a control box is fixedly installed on one side of one of the lifting guide rails, and a reinforcing plate is fixedly installed between the two lifting guide rails.

[0009] Preferably, a bidirectional screw is rotatably mounted on the inner wall of the regulating box, and regulating blocks are symmetrically slidably mounted on the inner wall of the regulating box. The inner walls of the regulating blocks are threadedly connected to the outer walls of the bidirectional screw. The two regulating blocks are respectively fixedly connected to two extension plates, and an regulating ring is fixedly mounted on one end of the bidirectional screw.

[0010] Preferably, the elastic component includes an extension frame, which is fixedly installed on the outer wall of the upper clamp, a positioning frame is fixedly installed on the top of the base, a sliding column is fixedly installed between the positioning frame and the base, the sliding column and the positioning frame are slidably connected to the extension frame, and an elastic element B is fixedly installed between the extension frame and the positioning frame and on the outside of the sliding column.

[0011] Preferably, a connecting block is fixedly installed on the top of the extension frame, a connecting belt is fixedly installed on the inner wall of the connecting block, and the end of the connecting belt away from the connecting block is fixedly connected to the adjustment box through a fixed plate.

[0012] Preferably, a set of support blocks is fixedly installed on both sides of the lower clamp, a flipping frame is provided on both sides of the lower clamp, the two flipping frames are respectively connected to the top of the two sets of support blocks, a feeding platform is fixedly installed on the top of the base, and a flipping component is provided on the inner wall of the lower clamp.

[0013] Preferably, the flipping assembly includes torsion spring shafts, two of which are symmetrically fixedly installed on the inner wall of the lower clamp, two flipping frames are respectively installed on the outer side of the two torsion spring shafts, and a push rod is fixedly installed on the inner wall of the extension frame, the push rod being located below the flipping frame.

[0014] Preferably, a rear positioning plate is fixedly installed on the back of the lower clamp, and mounting brackets are symmetrically fixedly installed on the top of the base. Each mounting bracket has a hydraulic cylinder fixedly installed on its top, and a centering push plate is fixedly installed on the output shaft of each hydraulic cylinder.

[0015] Preferably, the outer wall of the upper clamp is symmetrically fixedly equipped with slide blocks, the inner wall of each slide block is slidably equipped with a slide plate, the bottom of each slide plate is fixedly equipped with a pressure roller, and the top of each slide plate is fixedly equipped with a counterweight limiting plate.

[0016] The beneficial effects of this invention are as follows: 1. The present invention sets a detection component below both ends of the blade. In the initial state, it is in contact with the blade. When the lifting wheel squeezes the blade, if the blade is not strong enough and deforms, it will squeeze the detection component and make it move. The detection component can accurately measure its own movement distance. Based on this accurate displacement data, it can accurately determine whether the blade's compressive strength meets the standard, thus realizing the blade strength detection work. This quantitative detection method avoids the error of subjective judgment and makes the detection results more objective and accurate.

[0017] 2. This invention connects the extension frame to the adjustment box via a connecting belt. The lifting assembly drives the adjustment box to move, thereby indirectly controlling the lifting of the extension frame and the upper clamp. When placing the blade, simply operate the lifting assembly to move the adjustment box upward, and the connecting belt will automatically pull the extension frame and the upper clamp upward, making room for blade placement. There is no need to manually lift the upper clamp, which greatly reduces the labor intensity of the operator and improves the convenience of operation.

[0018] 3. This invention realizes a complete automated process from unfixing to automatic unloading. The drive component first moves the extension frame upward through the connecting belt, thereby causing the upper clamp to rise and release the fixation on the blade. Then, the extension frame drives the flipping frame upward with the help of the flipping component, pushing the blade to flip and slide down the inclined flipping frame to the unloading platform, and finally slide down the unloading platform. The whole process does not require manual intervention. Each link is closely connected and smooth and natural, which greatly shortens the unloading time and significantly improves the overall efficiency of the inspection work. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the base structure of the present invention; Figure 3 This is a schematic diagram of the base structure from another perspective of the present invention; Figure 4 This is a schematic diagram of the structure of the regulating box of the present invention; Figure 5 This is a schematic diagram of the structure of the lower clamp of the present invention; Figure 6 This is a schematic diagram of the structure at the detection wheel of the present invention; Figure 7 This is a schematic diagram of the structure of the flipping frame of the present invention; Figure 8 This is a schematic diagram of the extension frame structure of the present invention; Figure 9 This is a schematic diagram of the positioning frame structure of the present invention; Figure 10 This is a schematic diagram of the structure of the hydraulic cylinder of the present invention; Figure 11 This is a schematic diagram of the upper clamp of the present invention.

[0021] In the diagram: 1. Base; 2. Adjustment box; 3. Extension plate; 4. Lifting wheel; 5. Column; 6. Lower clamp; 7. Upper clamp; 8. Telescopic rod; 9. Detection wheel; 10. Elastic element A; 11. Displacement sensor; 12. Lifting guide rail; 13. Lifting frame; 14. Control box; 15. Reinforcing plate; 16. Bidirectional screw; 17. Adjusting block; 18. Adjusting ring; 19. Extension frame; 20. Positioning frame; 21. Sliding column; 22. Elastic element B; 23. Connecting block; 24. Connecting belt; 25. Fixing plate; 26. Support block; 27. Tilting frame; 28. Unloading platform; 29. ​​Torsion spring shaft; 30. Push rod; 31. Rear positioning plate; 32. Mounting frame; 33. Hydraulic cylinder; 34. Centering push plate; 35. Slide seat; 36. Slide plate; 37. Pressure roller; 38. Counterweight limit plate. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 6As shown in the embodiment of the present invention, a dry vacuum pump rotor blade field strength testing device includes a base 1, an adjustment box 2 is arranged above the base 1, a lifting assembly is arranged between the base 1 and the adjustment box 2, extension plates 3 are symmetrically arranged at the bottom of the adjustment box 2, lifting wheels 4 are fixedly installed at one end of each extension plate 3, a column 5 is fixedly installed at the top of the base 1, a lower clamp 6 is fixedly installed at the top of the column 5, an upper clamp 7 is arranged above the lower clamp 6, an elastic assembly is arranged on one side of the upper clamp 7, and detection assemblies are arranged on both sides of the column 5. Each detection assembly includes a displacement sensor 11, which is used to detect the deformation of the blade.During operation, first lift the upper clamp 7 upwards, then place the center position of the blade to be inspected above the lower clamp 6. After releasing the upper clamp 7, it will move downwards under the action of the elastic component, cooperating with the lower clamp 6 to clamp and fix the center position of the blade. Then, activate the lifting component, which will drive the adjusting box 2 downwards. When the adjusting box 2 moves downwards, it will drive the lifting wheel 4 downwards through the extension plate 3. When the lifting wheel 4 moves downwards, it will locally compress the two ends of the blade from above. Detection components are set on both sides of the column 5. In the initial state, the blade will remain in contact with the detection components. When the lifting wheel 4 moves downwards and compresses the blade, if the blade's compressive strength is sufficient, it will not deform. The measuring component remains stationary. If the blade's compressive strength cannot support the lifting rollers 4, both ends of the blade will undergo downward local deformation. The deformed blade will press against the measuring component, causing it to move. The measuring component can detect the distance it moves. The measuring component has a built-in displacement sensor 11, which is used to collect the deformation displacement signal of the blade after being compressed in real time, realizing intelligent detection and quantitative judgment of the blade's compressive strength, thereby determining the blade's compressive strength and realizing the blade strength detection work. Since there are two lifting rollers 4, which simultaneously compress the blade from both ends with the same force, and there are also two measuring components, each located below both ends of the blade, it is possible to measure the blade's compressive strength from both ends. Both ends are tested to compare data, thereby improving detection accuracy and avoiding special cases. Displacement sensor 11 collects displacement data of the detection component in real time and generates an electrical signal output. The displacement value directly and intelligently determines whether the blade's compressive strength is up to standard. In this invention, detection components are set below both ends of the blade, initially in contact with the blade. When the lifting wheel 4 compresses the blade, if the blade's compressive strength is insufficient and it deforms, it will compress the detection component, causing it to move. The detection component can accurately measure its own movement distance. Based on this precise displacement data, it can accurately determine whether the blade's compressive strength meets the standard, realizing blade strength detection. This quantitative detection method avoids subjective judgment. To minimize errors and make the test results more objective and accurate, the device is equipped with two lifting wheels 4, which simultaneously compress the blade from both ends with the same force. This dual-sided synchronous testing method can comprehensively examine the compressive strength performance of both ends of the blade, obtain the compressive strength data of both ends, and conduct comparative analysis. By comparing, it can promptly detect whether there are differences in compressive strength at both ends of the blade, effectively avoiding test errors caused by special local conditions or uneven strength, greatly improving the accuracy of the test results, providing a reliable basis for accurately assessing the overall compressive strength performance of the blade, and preventing inaccurate test data due to special conditions such as blade manufacturing errors or material inhomogeneity, thus more accurately reflecting the true compressive strength performance of the blade.

[0024] like Figure 2 and Figure 6As shown, the detection assembly includes a telescopic rod 8, which is fixedly installed on the top of the base 1. A detection wheel 9 is fixedly installed at one end of the telescopic rod 8. An elastic element A10 is fixedly installed between the detection wheel 9 and the base 1, located on the outside of the telescopic rod 8. A displacement sensor 11 is fixedly installed at the bottom of the detection wheel 9. After the blade is placed above the lower clamp 6, the blade will remain in contact with the detection wheel 9 below it. When the lifting wheel 4 descends and compresses the blade, if the blade cannot withstand the pressure brought by the lifting wheel 4, it will undergo downward local deformation. When the blade deforms, it will compress the detection wheel 9, and the detection wheel 9 will move down, causing the telescopic rod 8 and the elastic element A10 to contract. When the detection wheel 9 moves down, it will drive the displacement sensor 11 to move down. The displacement sensor 11 detects the downward movement distance of the detection wheel 9. By analyzing the downward movement distance of the detection wheel 9 and the compressive force applied to the blade by the lifting wheel 4, the compressive strength data of the blade can be obtained. After the detection work is completed, the detection wheel 9... The blade will reset under the reverse elastic force of the elastic element A10, preparing for the next inspection. The displacement sensor 11 is fixed to the bottom of the inspection wheel 9. When the blade is deformed by the pressure of the lifting wheel 4 and the inspection wheel 9 is pressed down, the displacement sensor 11 can measure the downward distance of the inspection wheel 9 in real time and accurately. This accurate displacement data provides a key basis for subsequent analysis of the blade's compressive strength, avoiding errors in the judgment of compressive strength due to inaccurate measurement, and greatly improving the accuracy of the test results. The inspection wheel 9 is in direct contact with the blade. When the blade begins to deform slightly by the pressure of the lifting wheel 4, the inspection wheel 9 can immediately sense the deformation of the blade and quickly move down. The displacement sensor 11 can capture this slight movement of the inspection wheel 9 in real time and promptly feed the signal back to the inspection system, so that the inspectors can understand the stress on the blade as soon as possible, providing rapid response support for timely adjustment of inspection parameters or judgment of the blade's compressive strength.

[0025] like Figure 1 As shown, the lifting assembly includes lifting guide rails 12. Two lifting guide rails 12 are symmetrically and fixedly installed on the top of the base 1. A lifting frame 13 is installed between the two lifting guide rails 12. The bottom of the lifting frame 13 is fixedly connected to the top of the regulating box 2. A control box 14 is fixedly installed on one side of one of the lifting guide rails 12. A reinforcing plate 15 is fixedly installed between the two lifting guide rails 12. When the device is performing testing, the lifting guide rails 12 will drive the regulating box 2 to rise and fall through the lifting frame 13, providing power for the device to perform compressive strength testing. The control box 14 can issue working instructions to the device to perform corresponding work. The reinforcing plate 15 connects the tops of the two lifting guide rails 12, increasing the stability of the overall structure of the device, ensuring that the extrusion force applied by the lifting wheel 4 to the blade is stable and uniform, and ensuring the accuracy of the compressive strength test.

[0026] like Figure 4As shown, a bidirectional screw 16 is rotatably installed on the inner wall of the regulating box 2, and regulating blocks 17 are symmetrically slidably installed on the inner wall of the regulating box 2. The inner walls of the regulating blocks 17 are threadedly connected to the outer walls of the bidirectional screw 16. The two regulating blocks 17 are fixedly connected to the two extension plates 3 respectively. An regulating ring 18 is fixedly installed on one end of the bidirectional screw 16. When the regulating ring 18 is rotated, it will drive the bidirectional screw 16 to rotate. When the bidirectional screw 16 rotates, it will drive the two regulating blocks 17 to move synchronously in opposite directions. When the regulating blocks 17 move, they will drive the lifting wheel 4 to move through the extension plates 3, thereby achieving the effect of adjustable position of the lifting wheel 4. By adjusting the position of the lifting wheel 4, the needs of accurate compressive strength testing of blades of different sizes or different positions of blades can be met, improving the flexibility and adaptability of the testing, and ensuring that the compressive strength testing of blades of different specifications can be carried out accurately.

[0027] like Figure 5 and Figures 7 to 9 As shown, the elastic component includes an extension frame 19, which is fixedly installed on the outer wall of the upper clamp 7. A positioning frame 20 is fixedly installed on the top of the base 1. A sliding column 21 is fixedly installed between the positioning frame 20 and the base 1. Both the sliding column 21 and the positioning frame 20 are slidably connected to the extension frame 19. An elastic element B22 is fixedly installed between the extension frame 19 and the positioning frame 20, and located outside the sliding column 21. When the upper clamp 7 is lifted upward, the upper clamp 7 will drive the extension frame 19 to move upward. When the extension frame 19 moves upward, it will squeeze the elastic element B22 to make it contract. After the blade is placed above the lower clamp 6, the upper clamp 7 is released. The upper clamp 7 will then compress the elastic element B22. Under the action of the reverse elastic force, the upper clamp 7 moves downward, thus cooperating with the lower clamp 6 to clamp and fix the blade, ensuring the stability of the blade during the compressive strength test and preventing the blade from shifting. Simply lift the upper clamp 7 upward to make room for the blade, place the blade above the lower clamp 6, and then release the upper clamp 7. Under the action of the reverse elastic force of the elastic element B22, the upper clamp 7 automatically moves downward, quickly completing the clamping and fixing of the blade. The whole process does not require complicated operating steps or additional tools. Operators can quickly and easily complete the blade fixing work, greatly saving the preparation time for the compressive strength test and improving the testing efficiency.

[0028] like Figure 4 and Figures 7 to 8As shown, a connecting block 23 is fixedly installed on the top of the extension frame 19, and a connecting belt 24 is fixedly installed on the inner wall of the connecting block 23. The end of the connecting belt 24 away from the connecting block 23 is fixedly connected to the adjustment box 2 through a fixed plate 25. The two ends of the connecting belt 24 are fixed to the extension frame 19 and the adjustment box 2 respectively through the connecting block 23 and the fixed plate 25. When the blade is fixed, the lifting component moves the adjustment box 2 upward. When the adjustment box 2 moves upward, it pulls the extension frame 19 upward through the connecting belt 24, thereby providing space for the blade to be placed. Then, the lifting component lowers to release the connecting belt 24 from the extension frame 19, thereby causing the upper clamp 7 to descend and clamp the blade. When the blade is fixed, there is no need to manually lift the upper clamp 7, which greatly reduces the labor intensity of the operator and improves the convenience of operation. This design simplifies the operation process, reduces the number of operation steps, and makes the preparation work for compressive strength testing more efficient and faster, which can significantly shorten the testing cycle and improve the overall testing efficiency.

[0029] like Figure 7 As shown, a set of support blocks 26 are fixedly installed on both sides of the lower clamp 6, and a flipping frame 27 is provided on both sides of the lower clamp 6. The two flipping frames 27 are respectively attached to the top of the two sets of support blocks 26. A feeding platform 28 is fixedly installed on the top of the base 1, and a flipping component is provided on the inner wall of the lower clamp 6. After the device completes the compressive strength test, the drive component will first drive the extension frame 19 to move upward through the connecting belt 24. When the extension frame 19 moves upward, it will drive the upper clamp 7 to move upward, thereby releasing the fixation of the blade. Then, as the drive component continues to move upward, the extension frame 19 will drive the flipping frame 27 to flip upward through the flipping component. When the flipping frame 27 flips, it will push the blade to flip. After flipping, the flipping frame 27 is in an inclined state, and the blade will then... The blade slides down the inclined tilting frame 27 onto the slope of the unloading platform 28, and then slides down the unloading platform 28, achieving the effect of automatic unloading. After the blade compressive strength test is completed, this design realizes a complete automated process from unfixing to automatic unloading. The drive component first drives the extension frame 19 to move upward through the connecting belt 24, which in turn causes the upper clamp 7 to rise and release the fixation of the blade. Then, the extension frame 19 drives the tilting frame 27 to tilt upward with the help of the tilting component, pushing the blade to tilt and slide down the inclined tilting frame 27 onto the unloading platform 28, and finally slides down the unloading platform 28. The whole process does not require manual intervention. Each link is closely connected and smooth and natural, which greatly shortens the unloading time and significantly improves the overall efficiency of the compressive strength test.

[0030] like Figure 7As shown, the flipping assembly includes a torsion spring shaft 29. Two torsion spring shafts 29 are symmetrically fixedly installed on the inner wall of the lower clamp 6. Two flipping frames 27 are respectively installed on the outer side of the two torsion spring shafts 29. A push rod 30 is fixedly installed on the inner wall of the extension frame 19, and the push rod 30 is located below the flipping frame 27. When the extension frame 19 moves upward, it will drive the push rod 30 to move upward. Since the push rod 30 is located below the flipping frame 27, the push rod 30 will squeeze the flipping frame 27 during the upward movement, causing it to rotate around the torsion spring shaft 29, thereby realizing the automatic feeding of the blade. After the device completes the feeding, the lifting assembly will descend, and the flipping frame 27 will be reset under the action of the torsion spring shaft 29, preparing for the subsequent compressive strength test.

[0031] like Figure 3 , Figure 7 and Figure 10 As shown, a rear positioning plate 31 is fixedly installed on the back of the lower clamp 6, and mounting brackets 32 are symmetrically fixedly installed on the top of the base 1. Each mounting bracket 32 ​​has a hydraulic cylinder 33 fixedly installed on its top, and a centering push plate 34 is fixedly installed on the output shaft of each hydraulic cylinder 33. When the blade is placed above the lower clamp 6, the blade is brought into contact with the rear positioning plate 31 to perform initial positioning of the blade. Then, according to the length of the blade, the hydraulic cylinders 33 are activated, and the two hydraulic cylinders 33 will synchronously drive the centering push plate 34 to move. When the centering push plate 34 moves, it will center and position the blade, thereby ensuring the accuracy of the subsequent compressive strength test, effectively avoiding the distortion of the compressive strength test results caused by positional deviation, ensuring that the lifting wheel 4 applies local extrusion pressure to both ends of the blade accurately, and ensuring the reliability of the compressive strength test data.

[0032] like Figure 11 As shown, slide blocks 35 are symmetrically fixedly installed on the outer wall of the upper clamp 7, and slide plates 36 are slidably installed on the inner wall of each slide block 35. Pressure rollers 37 are fixedly installed at the bottom of each slide plate 36, and counterweight limiting plates 38 are fixedly installed at the top of each slide plate 36. Before the hydraulic cylinder 33 centers the blade via the centering push plate 34, the lifting assembly first moves the upper clamp 7 downwards. As the upper clamp 7 moves downwards, the pressure rollers 37 follow suit. When the upper clamp 7 is about to contact the blade, the lifting assembly stops descending. At this point, the pressure rollers 37 are lifted by the blade, and the pressure rollers 37 are pushed down by the counterweight limiting plate 38. Position plate 38 presses down on the blade, subjecting it to pressure in the vertical direction. This increases the friction between the blade and the lower clamp 6, improving the blade's stability in the horizontal direction. Then, the hydraulic cylinder 33 is used for centering adjustment, effectively reducing blade swaying and offset, thereby improving positioning accuracy and ensuring the blade is accurately centered. This reduces errors in compressive strength testing caused by blade position offset, improves the stability and reliability of compressive strength testing, ensures uniform local compressive pressure at both ends of the blade, and guarantees accurate compressive strength testing data.

[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 the present invention is defined by the appended claims and their equivalents.

Claims

1. A field strength testing device for dry vacuum pump rotor blades, comprising a base (1), characterized in that: An adjustment box (2) is provided above the base (1). A lifting assembly is provided between the base (1) and the adjustment box (2). An extension plate (3) is symmetrically provided at the bottom of the adjustment box (2). A lifting wheel (4) is fixedly installed at one end of each extension plate (3). A column (5) is fixedly installed at the top of the base (1). A lower clamp (6) is fixedly installed at the top of the column (5). An upper clamp (7) is provided above the lower clamp (6). An elastic assembly is provided on one side of the upper clamp (7). Detection assemblies are provided on both sides of the column (5). Each detection assembly includes a displacement sensor (11). The displacement sensor (11) is used to detect the deformation of the blade.

2. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The detection assembly includes a telescopic rod (8), which is fixedly installed on the top of the base (1). A detection wheel (9) is fixedly installed at one end of the telescopic rod (8). An elastic element A (10) is fixedly installed between the detection wheel (9) and the base (1) and on the outside of the telescopic rod (8). The displacement sensor (11) is fixedly installed at the bottom of the detection wheel (9).

3. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The lifting assembly includes lifting guide rails (12), two of which are symmetrically fixedly installed on the top of the base (1). A lifting frame (13) is installed between the two lifting guide rails (12). The bottom of the lifting frame (13) is fixedly connected to the top of the adjustment box (2). A control box (14) is fixedly installed on one side of one of the lifting guide rails (12). A reinforcing plate (15) is fixedly installed between the two lifting guide rails (12).

4. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The inner wall of the regulating box (2) is rotatably mounted with a bidirectional screw (16), and the inner wall of the regulating box (2) is symmetrically slidably mounted with regulating blocks (17). The inner walls of the regulating blocks (17) are threadedly connected to the outer walls of the bidirectional screw (16). The two regulating blocks (17) are respectively fixedly connected to the two extension plates (3). One end of the bidirectional screw (16) is fixedly mounted with an regulating ring (18).

5. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The elastic component includes an extension frame (19), which is fixedly installed on the outer wall of the upper clamp (7). A positioning frame (20) is fixedly installed on the top of the base (1). A sliding column (21) is fixedly installed between the positioning frame (20) and the base (1). The sliding column (21) and the positioning frame (20) are slidably connected to the extension frame (19). An elastic element B (22) is fixedly installed between the extension frame (19) and the positioning frame (20) and on the outside of the sliding column (21).

6. The dry vacuum pump rotor blade field strength testing device according to claim 5, characterized in that: A connecting block (23) is fixedly installed on the top of the extension frame (19), and a connecting belt (24) is fixedly installed on the inner wall of the connecting block (23). The end of the connecting belt (24) away from the connecting block (23) is fixedly connected to the adjustment box (2) through a fixed plate (25).

7. The dry vacuum pump rotor blade field strength testing device according to claim 5, characterized in that: A set of support blocks (26) are fixedly installed on both sides of the lower clamp (6). A flipping frame (27) is provided on both sides of the lower clamp (6). The two flipping frames (27) are respectively attached to the top of the two sets of support blocks (26). A feeding platform (28) is fixedly installed on the top of the base (1). A flipping component is provided on the inner wall of the lower clamp (6).

8. The dry vacuum pump rotor blade field strength testing device according to claim 7, characterized in that: The flipping assembly includes a torsion spring shaft (29), two torsion spring shafts (29) are provided and symmetrically fixedly installed on the inner wall of the lower clamp (6), two flipping frames (27) are respectively installed on the outer side of the two torsion spring shafts (29), and a push rod (30) is fixedly installed on the inner wall of the extension frame (19), the push rod (30) is located below the flipping frame (27).

9. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The back of the lower clamp (6) is fixedly installed with a rear positioning plate (31), and the top of the base (1) is symmetrically fixedly installed with mounting brackets (32). The top of each mounting bracket (32) is fixedly installed with a hydraulic cylinder (33), and the output shaft of each hydraulic cylinder (33) is fixedly installed with a centering push plate (34).

10. The dry vacuum pump rotor blade field strength testing device according to claim 1, characterized in that: The upper clamp (7) is symmetrically fixedly mounted with slide blocks (35) on its outer wall. Slide blocks (36) are slidably mounted on the inner wall of each slide block (35). Pressure rollers (37) are fixedly mounted on the bottom of each slide block (36). Counterweight limiting plates (38) are fixedly mounted on the top of each slide block (36).

Images