A testing device for large blade load analysis

Abstract

The present invention discloses a large-scale blade load analysis detection device, which belongs to the field of blade detection technology, including a test bench for blade detection, on which a general adjustment control unit, a test unit simulating corrosion state and a data test unit for measuring load changes are arranged, and the general adjustment control unit includes a control seat arranged at one end of the test bench, on which a main bearing shaft is connected through a translation cylinder, a central bearing plate is fixedly connected to the outer wall of the main bearing shaft, a traction seat is connected to the outer wall of the central bearing plate through a measuring telescopic member, and a mounting seat is connected to the traction seat through a measuring sensor. The present invention can change the load intensity of the centrifugal force acting on the blade by changing the inner diameter as needed, and the rotating blade is adapted to be photographed by a synchronously adjusted observation high-speed camera to observe the state of the turbofan blade in high-speed rotation, so as to explore the relationship between its load, stability and centrifugal force.

Description

Technical Field

[0001] The present invention relates to the technical field of blade detection, and in particular to a detection device for large blade load analysis. Background Art

[0002] Turbofan engines are a commonly used power source for aircraft. The blades in the turbofan are an important component of the engine. At present, in order to avoid the turbofan from being unable to operate due to blade damage, the blades are installed on the drive shaft through a loose mortise and tenon structure, namely a "fir tree-type mortise and tenon structure". The gap left for each blade gives them the ability to self-regulate. If the centrifugal force is small, they slide less. Conversely, if the centrifugal force is large, they slide more. In this way, the center of gravity of the fan can always be maintained at the geometric center, and the threat of vibration is controlled to the minimum range. Therefore, the blades and the drive shaft are assembled.

[0003] At present, the main detection method for turbofan blades is through metallographic detection. This method can explore the defects in the turbofan cross section, but cannot explore the state of the blades rotating at high speed under different centrifugal forces. In addition, when the blades are undergoing corrosion tests, the state of their corrosion surfaces will be detected through metallographic detection, but it is impossible to explore the impact of corrosion on the fan shape of the blades and their operating state. Based on this, a detection equipment for large-scale blade load analysis is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a detection device for large blade load analysis.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A large blade load analysis detection device includes a test bench for blade detection, wherein the test bench is provided with a general control unit for adjusting, a test unit for simulating corrosion state, and a data test unit for measuring load changes;

[0007] The adjustment master control unit comprises a control seat arranged at one end of the test bench, the control seat is connected to a main bearing shaft via a translation cylinder, the outer wall of the main bearing shaft is fixedly connected to a central bearing plate, the outer wall of the central bearing plate is connected to a traction seat via a measuring telescopic member, the traction seat is connected to a mounting seat via a measuring sensor, and the mounting seat is provided with a strong magnetic fixing member for fastening and clamping the blade;

[0008] The middle bearing plate is rotatably connected with an adjusting screw collar sleeved on the main bearing shaft, the adjusting screw collar is connected to the traction seat through an adjusting member, and the control seat is provided with a meshing adjusting assembly for driving the adjusting screw collar;

[0009] The data testing unit comprises a test protection ring arranged on the test bench, both ends of the test protection ring are connected to a plurality of traction support rods through a support shaft, the other end of the traction support rod is fixedly connected to a bearing seat, an observation high-speed camera is arranged on the bearing seat, and the test protection ring is connected to the mounting seat through a camera position adjustment member;

[0010] The test unit comprises a test end seat arranged at one end of the test bench, a simulation test cylinder is arranged on the test end seat, a corrosion simulation device is arranged on the simulation test cylinder, and a movable protective cover is installed on the test end seat through a slide rail device;

[0011] A test drive motor is arranged on the test end seat, and the output end of the test drive motor extends outward through the side wall of the test end seat and is fixedly connected to the main drive gear. An assembly gear ring meshing with the main drive gear is rotatably arranged on the test end seat, and a drive disk combined with the assembly gear ring is arranged at the end of the main bearing shaft.

[0012] Preferably, the translation cylinder is fixedly arranged on the control seat, and its output end extends outward through the side wall of the control seat and is fixedly connected to the control plate. One end of the main bearing shaft extends outward through the control seat and is rotatably connected to the control plate through a bearing bearing.

[0013] Preferably, the measuring telescopic member comprises a plurality of fixed sleeves fixedly arranged on the outer side wall of the central bearing plate, a scale telescopic plate is sleeved inside the fixed sleeve, and the other end of the scale telescopic plate is fixedly connected to the traction seat.

[0014] Preferably, the strong magnetic fixing part includes side plates arranged on both sides of the mounting seat, the inner walls of the side plates are connected to electromagnetic plates through reset springs, the mounting seat is provided with a mounting clamping mold, and the mounting clamping mold is movably provided with a pressing clamping column, and the electromagnetic plates arranged relatively to each other are magnetically attracted.

[0015] Preferably, the adjusting member comprises a screw nut ring threadedly connected to the adjusting screw sleeve ring, a plurality of U-shaped connecting members are arranged at the bottom of the mounting seat, and the outer side wall of the screw nut ring is connected to the U-shaped connecting member through a plurality of adjusting support rods.

[0016] Preferably, the meshing adjustment component includes a spur gear meshing wheel fixedly connected to the end of the adjusting screw sleeve, and an adjusting motor is arranged on the control seat. The output end of the adjusting motor extends outward through the side wall of the control seat and is fixedly connected to a meshing gear disk adapted to the spur gear meshing wheel.

[0017] Preferably, the camera position adjustment member comprises a rotating adjustment ring arranged at both ends of the test protection ring, the side wall of the rotating adjustment ring is connected with a rotating adjustment rod through a rotating shaft, and the other end of the rotating adjustment rod is rotatably connected to the side wall of the bearing seat through a fixed rotating shaft;

[0018] A dual-axis motor is arranged on the test protection ring, an adjustment gear ring is arranged on the outer side wall of the test protection ring, and an adjustment gear meshing with the adjustment gear ring is fixedly connected to the output end of the dual-axis motor.

[0019] Preferably, the corrosion simulation device comprises a plurality of liquid injection covers arranged on the simulation test cylinder, a partition is arranged inside the simulation test cylinder, and a plurality of liquid injection spray heads are arranged on the partition.

[0020] Preferably, the outer side wall of the driving disk is provided with a plurality of matching embedded blocks, and the inner side wall of the assembly gear ring is provided with matching embedded openings matched with the matching embedded blocks.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is designed based on the relationship between the load of a turbofan blade and its centrifugal force. A single turbofan blade is installed by means of an installation clamping mold. When performing a load test, the load intensity of the centrifugal force acting on the blade can be changed by changing the inner diameter as needed. The rotating blade is adaptively photographed by a synchronously adjusted observation high-speed camera to observe the state of the turbofan blade during high-speed rotation, so as to explore the relationship between its load, stability and centrifugal force.

[0023] 2. After the corrosion test of the turbofan blades, the present invention uses high-speed rotation without destroying the blades to explore the relationship between the blade load, stability and centrifugal force under the corrosion state, and through the measurement sensor set thereon, the weight change of the turbofan blade, that is, the degree of corrosion of the blade, can be calculated through the change of the traction value before and after, so as to facilitate R&D personnel to explore and analyze the blade performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a large blade load analysis detection device proposed by the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 3 This is a schematic diagram of the assembly structure of a large blade load analysis detection device proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of an adjusting part and a strong magnetic fixing part in a large blade load analysis detection device proposed by the present invention;

[0028] Figure 5This is a schematic diagram of the structure of a test guard ring in a large blade load analysis detection device proposed by the present invention;

[0029] Figure 6 The figure is a schematic diagram of the assembly structure of a strong magnetic fixing part in a large blade load analysis detection device proposed by the present invention.

[0030] In the figure: 1. Test bench; 2. Control seat; 3. Translation cylinder; 4. Main bearing shaft; 5. Central bearing plate; 6. Traction seat; 7. Measuring sensor; 8. Mounting seat; 9. Adjusting screw ring; 10. Test protection ring; 11. Traction support rod; 12. Bearing seat; 13. Observation high-speed camera; 14. Test end seat; 15. Simulation test cylinder; 16. Mobile protective cover; 17. Test drive motor; 18. Main drive gear; 19. Assembly gear ring; 20. Drive plate ; 21. Control panel; 22. Fixed sleeve; 23. Scale telescopic plate; 24. Electromagnetic plate; 25. Side panel; 26. Install clamping mold; 27. Press clamping column; 28. Screw nut ring; 29. ​​Adjust support rod; 30. Spur gear meshing wheel; 31. Adjust motor; 32. Meshing gear disc; 33. Rotate adjustment ring; 34. Rotate adjustment rod; 35. Liquid filling cover; 36. Partition; 37. Matching block; 38. Dual-axis motor; 39. Adjust gear ring; 40. Adjust gear. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example, see Figures 1 to 6 , a large blade load analysis detection device, comprising a test bench 1 for blade detection, the test bench 1 is provided with a general control unit for adjusting, a test unit for simulating corrosion state and a data test unit for measuring load changes;

[0035] The adjustment master control unit includes a control seat 2 arranged at one end of the test bench 1, and the control seat 2 is connected to a main bearing shaft 4 through a translation cylinder 3. The translation cylinder 3 is a prior art and will not be described in detail here. The translation cylinder 3 is fixedly arranged on the control seat 2, and its output end extends outward through the side wall of the control seat 2 and is fixedly connected to a control board 21. One end of the main bearing shaft 4 extends outward through the control seat 2 and is rotatably connected to the control board 21 through a bearing bearing. The setting of the rotational connection can ensure that the main bearing shaft 4 can rotate, and the setting of the control board 21 does not affect the use of the main bearing shaft 4.

[0036] The outer wall of the main bearing shaft 4 is fixedly connected to a central bearing plate 5, and the outer wall of the central bearing plate 5 is connected to a traction seat 6 through a measuring telescopic part. The measuring telescopic part includes a plurality of fixed sleeves 22 fixedly arranged on the outer wall of the central bearing plate 5, and a scale telescopic plate 23 is sleeved inside the fixed sleeve 22. The other end of the scale telescopic plate 23 is fixedly connected to the traction seat 6. A telescopic scale is provided on the scale telescopic plate 23, which can meet the precise grasp of the inner diameter during centrifugal rotation.

[0037] The traction seat 6 is connected to a mounting seat 8 via a measuring sensor 7. The measuring sensor 7 is a tension sensor, which can effectively detect the centrifugal force of the blade to be measured. The mounting seat 8 is provided with a strong magnetic fixing member for fastening and clamping the blade.

[0038] Specifically, the body of the measuring sensor 7 is connected to the mounting seat 8 and the traction seat 6, the sensing end of the measuring sensor 7 extends upward through the mounting seat 8, and is connected to the mounting clamping mold 26, thereby reducing the influence of the gravity of the remaining components on the centrifugal force detection; further, the strong magnetic fixing part includes side plates 25 arranged on both sides of the mounting seat 8, the inner wall of the side plate 25 is connected to the electromagnetic plate 24 through a reset spring, the mounting seat 8 is provided with a mounting clamping mold 26, and the mounting clamping mold 26 is movably provided with a pressing clamping column 27, and the relatively arranged electromagnetic plates 24 are magnetically attracted to each other.

[0039] It should be noted that a clamping groove is provided on the installation clamping mold 26, which is consistent with the size of the blade to be detected, and can realize the placement of the blade to be detected. When the blade to be detected is clamped, the electromagnetic plates 24 on both sides are powered, and the electromagnetic plates 24 will generate strong magnetism and attract each other to move inward, thereby generating an extrusion force on the pressing clamping column 27 set in the installation clamping mold 26, thereby achieving effective clamping of the detection blade in the installation clamping mold 26.

[0040] An adjusting screw collar 9 mounted on the main bearing shaft 4 is rotatably connected to the middle bearing plate 5. The adjusting screw collar 9 is connected to the traction seat 6 through an adjusting member. The adjusting member includes a screw nut ring 28 threadedly connected to the adjusting screw collar 9. A plurality of U-shaped connectors are arranged at the bottom of the mounting seat 8. The outer wall of the screw nut ring 28 is connected to the U-shaped connector through a plurality of adjustment support rods 29.

[0041] It should be noted that the two ends of the adjustment support rod 29 are rotatably connected to the U-shaped connecting piece and the outer wall of the screw nut ring 28 respectively. When the adjustment support rod 29 moves, it will push the traction seat 6 to move, thereby changing the centrifugal force radius of the blade to be detected in the clamping mold 26 installed on the traction seat 6 when it rotates.

[0042] The control seat 2 is provided with a meshing adjustment component for driving the adjustment screw collar 9, and the meshing adjustment component includes a spur gear meshing wheel 30 fixedly connected to the end of the adjustment screw collar 9. The control seat 2 is provided with an adjustment motor 31, and the output end of the adjustment motor 31 extends outward through the side wall of the control seat 2 and is fixedly connected with a meshing gear disc 32 adapted to the spur gear meshing wheel 30.

[0043] When the rotating inner diameter of the blade to be tested needs to be changed during the test, the screw collar 9 can be moved to make the meshing toothed disc 32 provided thereon mesh with the spur gear 30, thereby achieving the effect of electric adjustment.

[0044] It is worth noting that the magnitude of the centrifugal force depends on the mass of the object, the rotation radius and the rotation speed. Centrifugal force = object mass * rotation radius * square of angular velocity, that is, the centrifugal force is proportional to the square of the angular velocity, and is proportional to the rotation radius and the mass of the object.

[0045] The data testing unit includes a test protection ring 10 arranged on the test bench 1, and both ends of the test protection ring 10 are connected to a plurality of traction support rods 11 through support shafts, and the other end of the traction support rod 11 is fixedly connected to a bearing seat 12, and an observation high-speed camera 13 is arranged on the bearing seat 12, and the test protection ring 10 is connected to the bearing seat 12 through a camera position adjustment member;

[0046] Furthermore, the camera position adjustment member includes a rotating adjustment ring 33 arranged at both ends of the test protection ring 10, the side wall of the rotating adjustment ring 33 is connected to a rotating adjustment rod 34 through a rotating shaft, and the other end of the rotating adjustment rod 34 is rotatably connected to the side wall of the supporting seat 12 through a fixed rotating shaft.

[0047] It should be noted that, through the setting of the camera position adjustment part, the positions of multiple support seats 12 can be adjusted synchronously, so that the observation high-speed camera 13 connected thereto can achieve position adjustment to meet the needs of adjusting the rotating inner diameter of the blade to be tested, so as to ensure that when the blade to be tested is tested at any inner diameter, the observation and recording of the test data at the corresponding position can be achieved.

[0048] A dual-axis motor 38 is disposed on the test protection ring 10 , an adjustment toothed ring 39 is disposed on the outer side wall of the test protection ring 10 , and an adjustment gear 40 meshingly connected to the adjustment toothed ring 39 is fixedly connected to the output end of the dual-axis motor 38 .

[0049] The test unit includes a test end seat 14 arranged at one end of the test bench 1, a simulation test cylinder 15 is arranged on the test end seat 14, a corrosion simulation device is arranged on the simulation test cylinder 15, and further, the corrosion simulation device includes a plurality of liquid injection covers 35 arranged on the simulation test cylinder 15, a partition 36 is arranged inside the simulation test cylinder 15, and a plurality of liquid injection spray heads are arranged on the partition 36.

[0050] The liquid injection spray head arranged on the partition 36 can realize the uniform spraying of the corrosive gas or liquid in the experiment on the blade to be tested, thus meeting the requirements of the test;

[0051] During the corrosion simulation test, the blade to be tested on the mounting seat 8 is in a state of minimum inner diameter, and the meshing toothed disc 32 can be designed to seal the end of the simulation test tube 15 to ensure that the gas does not escape and does not affect the test.

[0052] A movable protective cover 16 is installed on the test end seat 14 through a slide rail device, and a test drive motor 17 is arranged on the test end seat 14. The output end of the test drive motor 17 extends outward through the side wall of the test end seat 14 and is fixedly connected to a main drive gear 18. An assembly gear ring 19 meshing with the main drive gear 18 is rotatably arranged on the test end seat 14, and a drive disk 20 combined with the assembly gear ring 19 is arranged at the end of the main bearing shaft 4.

[0053] Furthermore, a plurality of matching inserts 37 are provided on the outer side wall of the driving disc 20 , and a matching insert opening matching with the matching inserts 37 is opened on the inner side wall of the assembly gear ring 19 .

[0054] When analyzing and testing the turbofan blades, the present invention installs a single turbofan blade to be tested on the mounting clamping mold 26, and clamps and fixes the turbofan blade by strong magnetic fixing members arranged on both sides of the mounting clamping mold 26. The high-speed rotation of the main bearing shaft 4 can achieve load detection of the turbofan blade on the mounting clamping mold 26.

[0055] The load of the turbofan blades during rotation is related to the centrifugal force they generate. The magnitude of the centrifugal force depends on the mass of the object, the rotation radius and the rotation speed. The centrifugal force is proportional to the square of the angular velocity, and is proportional to the rotation radius and the mass of the object. During the test, when it is necessary to increase the load of the turbofan blades, the rotation radius can be changed to adjust the load borne by the turbofan blades. When adjusting the radius, the main bearing shaft 4 can be driven to move by the translation cylinder 3, so that the spur gear 30 set on the main bearing shaft 4 is engaged with the meshing gear plate 32 connected to the adjustment motor 31. The adjustment screw sleeve 9 connected to the spur gear 30 is driven to move by the rotation of the adjustment motor 31, so as to realize the movement of the screw nut ring 28, and the movement of the traction seat 6 connected to it through the adjustment support rod 29, so as to realize the adjustment of the inner diameter of the turbofan blades.

[0056] During high-speed rotation, the main load-bearing shaft 4 is moved by the translation cylinder 3, so that the drive disk 20 connected to it is meshed with the assembly gear ring 19 (the turbofan blades are at the test protection ring 10), realizing a transmission combination between the two. At this time, the test drive motor 17 is controlled to drive the main load-bearing shaft 4 to rotate at a high speed, and the state of the turbofan blades during high-speed rotation is observed by multiple groups of observation high-speed cameras 13 arranged on the test protection ring 10, so as to explore the relationship between its load, stability and centrifugal force.

[0057] During the test, when it is necessary to test the corrosion resistance of the blade, the main bearing shaft 4 can be moved by the translation cylinder 3, so that the blade to be tested set on the mounting seat 8 is moved into the simulation test cylinder 15, and the corrosion test of the blade to be tested is carried out at different corrosion positions according to different needs, and then rotated at high speed after the test to explore the relationship between the blade load, stability and centrifugal force under the corrosion state;

[0058] At the same time, the measuring sensor 7 arranged on the mounting seat 8 will measure the traction force received by the turbofan blades at high-speed rotation. The weight change of the turbofan blades can be calculated through the numerical change of the traction force, thereby exploring the change of the state of the turbofan blades during the rotation process, whether they are damaged, and whether they are corroded to cause weight changes.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large blade load analysis detection device, comprising a test bench (1) for blade detection, characterized in that: The test bench (1) is provided with a general control unit for adjusting, a test unit for simulating corrosion conditions, and a data test unit for measuring load changes; The adjustment master control unit comprises a control seat (2) arranged at one end of the test bench (1); the control seat (2) is connected to a main bearing shaft (4) via a translation cylinder (3); the outer wall of the main bearing shaft (4) is fixedly connected to a central bearing plate (5); the outer wall of the central bearing plate (5) is connected to a traction seat (6) via a measuring telescopic member; the traction seat (6) is connected to a mounting seat (8) via a measuring sensor (7); and the mounting seat (8) is provided with a strong magnetic fixing member for fastening and clamping the blades; The middle bearing plate (5) is rotatably connected to an adjusting screw collar (9) sleeved on the main bearing shaft (4); the adjusting screw collar (9) is connected to the traction seat (6) via an adjusting member; and the control seat (2) is provided with a meshing adjusting component for driving the adjusting screw collar (9); The data testing unit comprises a test protection ring (10) arranged on a test bench (1), both ends of the test protection ring (10) are connected to a plurality of groups of traction support rods (11) via support shafts, the other end of the traction support rods (11) is fixedly connected to a bearing seat (12), an observation high-speed camera (13) is arranged on the bearing seat (12), and the test protection ring (10) is connected to the bearing seat (12) via a camera position adjustment member; The test unit comprises a test end seat (14) arranged at one end of the test bench (1), a simulation test cylinder (15) being arranged on the test end seat (14), a corrosion simulation device being arranged on the simulation test cylinder (15), and a movable protective cover (16) being installed on the test end seat (14) via a slide rail device; The test end seat (14) is provided with a test drive motor (17), the output end of the test drive motor (17) penetrates the side wall of the test end seat (14) and extends outwardly, and is fixedly connected to a main drive gear (18), the test end seat (14) is rotatably provided with an assembly gear ring (19) meshingly connected with the main drive gear (18), and the end of the main bearing shaft (4) is provided with a drive disc (20) combined with the assembly gear ring (19); The meshing adjustment assembly comprises a spur gear meshing wheel (30) fixedly connected to the end of the adjustment screw collar (9); an adjustment motor (31) is arranged on the control seat (2); an output end of the adjustment motor (31) extends outward through the side wall of the control seat (2) and is fixedly connected to a meshing toothed disc (32) adapted to the spur gear meshing wheel (30); The camera position adjustment member comprises a rotating adjustment ring (33) arranged at both ends of the test protection ring (10); a side wall of the rotating adjustment ring (33) is connected to a rotating adjustment rod (34) via a rotating shaft; and the other end of the rotating adjustment rod (34) is rotatably connected to the side wall of the bearing seat (12) via a fixed rotating shaft.

2. A large blade load analysis detection device according to claim 1, characterized in that: The translation cylinder (3) is fixedly arranged on the control seat (2), and its output end penetrates through the side wall of the control seat (2) to extend outwards and is fixedly connected to the control plate (21); one end of the main bearing shaft (4) penetrates through the control seat (2) to extend outwards and is rotatably connected to the control plate (21) via a bearing bearing.

3. A large blade load analysis detection device according to claim 1, characterized in that: The measuring telescopic member comprises a plurality of fixed sleeves (22) fixedly arranged on the outer side wall of the middle bearing plate (5), a scale telescopic plate (23) being sleeved inside the fixed sleeve (22), and the other end of the scale telescopic plate (23) being fixedly connected to the traction seat (6).

4. A large blade load analysis detection device according to claim 1, characterized in that: The strong magnetic fixing part comprises side plates (25) arranged on both sides of the mounting seat (8), the inner side walls of the side plates (25) are connected to the electromagnetic plates (24) via return springs, the mounting seat (8) is provided with a mounting clamping die (26), the mounting clamping die (26) is movably provided with a pressing clamping column (27), and the electromagnetic plates (24) arranged opposite to each other are magnetically attracted to each other.

5. A large blade load analysis detection device according to claim 1, characterized in that: The adjusting member comprises a screw nut ring (28) threadedly connected to an adjusting screw sleeve ring (9), a plurality of U-shaped connecting members are arranged at the bottom of the mounting seat (8), and an outer side wall of the screw nut ring (28) is connected to the U-shaped connecting member via a plurality of adjustment support rods (29).

6. A large blade load analysis detection device according to claim 1, characterized in that: A dual-axis motor (38) is disposed on the test protection ring (10), an adjustment toothed ring (39) is disposed on the outer side wall of the test protection ring (10), and an adjustment gear (40) meshingly connected to the adjustment toothed ring (39) is fixedly connected to the output end of the dual-axis motor (38).

7. A large blade load analysis detection device according to claim 1, characterized in that: The corrosion simulation device comprises a plurality of liquid injection covers (35) arranged on a simulation test cylinder (15); a partition (36) is arranged inside the simulation test cylinder (15); and a plurality of liquid injection spray heads are arranged on the partition (36).

8. The large blade load analysis detection device according to claim 1, characterized in that: The outer side wall of the driving disk (20) is provided with a plurality of matching embedded blocks (37), and the inner side wall of the assembly gear ring (19) is provided with matching embedded openings that match the matching embedded blocks (37).

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