A test apparatus for a rocking sample

Abstract

The application relates to a test device for a swing sample, mainly provides special test for a swing test, belongs to the technical field of test devices, and comprises a main frame table, a support, a swing assembly, a power loading assembly, a swing sample, a static pressure support circular arc platform, a rolling platform assembly and a servo actioner assembly. The left end of the support is fixed on the main frame table through screws. The bottom end of the support is fixedly connected with the swing assembly through screws. The top end of the swing sample is connected with the main frame table through screws. Through cooperation between the main frame table, the support, the swing assembly, the power loading assembly, the swing sample, the static pressure support circular arc platform, the rolling platform assembly and the servo actioner assembly, axial force is provided, the required output force for swinging is provided, the radial force and the swing torque of the swing sample are simultaneously subjected to fatigue test, and the practicability of the test device is improved.

Description

Technical Field

[0001] This invention relates to a testing device for a swing test specimen, which mainly provides a dedicated test for swing tests and belongs to the field of testing equipment technology. Background Technology

[0002] In the process of material testing, the commonly used equipment is the electro-hydraulic servo fatigue testing machine. However, the fatigue testing machines on the market can often only apply mechanical loading to the specimen in the vertical direction. The two ends of the specimen are often fixed to the equipment with clamps, which cannot provide the output force for swinging. Therefore, they cannot meet the test requirements of some special tests, especially the fatigue test of swinging specimens. Therefore, in order to solve the problem that the electro-hydraulic servo fatigue testing machine cannot meet, a test device for swinging specimens is proposed. It can provide axial force and the output force required for swinging at the same time, and realize the fatigue test of radial force and swinging torque of swinging specimens. Summary of the Invention

[0003] The purpose of this invention is to provide a testing device for swing specimens, which aims to solve the problem that existing fatigue testing machines on the market can only apply mechanical loading to the specimen in the vertical direction. The two ends of the specimen are often fixed to the equipment with clamps, which cannot provide the output force for swinging. Therefore, it cannot meet the test requirements of some special tests, especially the fatigue test of swing specimens. Therefore, in order to solve the problem that electro-hydraulic servo fatigue testing machines cannot meet, a testing device for swing specimens is proposed, which provides axial force and the output force required for swinging, and realizes fatigue testing of radial force and swing torque of swing specimens.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a testing device for a swinging sample, comprising a main frame platform, a support, a swinging assembly, a dynamic loading assembly, and a rocking... The system comprises a pendulum sample assembly, a hydrostatic support arc platform, a rolling platform assembly, and a servo actuator assembly. The left end of the support is fixed to the main frame platform with screws. The bottom end of the support is fixedly connected to the pendulum assembly with screws. The top end of the pendulum sample is connected to the main frame platform with screws. The bottom end of the pendulum sample is connected to the hydrostatic support arc platform with screws. The hydrostatic support arc platform is connected to the rolling platform assembly with screws. The rollers of the rolling platform assembly slide relative to the columns of the main frame platform. The top end of the servo actuator assembly is fixedly connected to the bottom end of the rolling platform assembly with bolts. The back end of the servo actuator assembly is fixedly connected to the base of the main frame platform with screws. The pendulum assembly, with a flanged section, is fixedly connected to the hydrostatic support arc platform with screws. The power loading assembly is connected to the pendulum assembly.

[0005] As a preferred testing device for a swing test specimen according to the present invention, the main frame platform is composed of a main beam, fixing bolts, upper locking nuts, columns, lower locking nuts, and a base. Four columns are provided and the bottom ends are connected to lower locking nuts. The lower locking nuts of the four columns are placed in the grooves of the base. The surface of the column is threaded and threadedly connected to the lower locking nuts. The lower locking nuts are fixed to the top of the base by screws. Four mating holes through the surface of the main beam pass through the surface of the columns and the top ends are connected to the upper locking nuts. The bottom end of the fixing bolt is threadedly fixed to the top of the column.

[0006] As a preferred testing device for a swing sample according to the present invention, the swing assembly comprises a swing bearing bracket, bearing baffle, rotating shaft, loading tripod, ball joint assembly, spoke sensor, and hydrostatic tie rod assembly. The ball joint assembly comprises a first ball joint head, bushing, ball joint shaft, transverse locking washer, transverse loading threaded shaft, and adjuster. The hydrostatic tie rod assembly comprises a sensor connecting flange, reinforcing horizontal plate, horizontal tension plate, vertical tension plate, and support rod. The rotating shaft passes through the rocker bearing bracket and is connected to the mating hole of the loading tripod. The bearing baffle is fixed to the outer wall of the rocker bearing bracket by screws. The ball joint shaft of the ball joint assembly passes through the loading tripod and is connected to the mating hole and fixed by nuts. The transverse loading thread shaft of the ball joint assembly is fixedly connected to the spoke sensor. The left end of the spoke sensor is fixedly connected to the sensor connecting flange side wall in the hydrostatic tie rod assembly by screws.

[0007] As a preferred testing device for a swing test specimen according to the present invention, the outer cylindrical surface of the ball joint shaft of the ball joint assembly is fitted and connected to the inner hole of the first ball joint head. The bushing passes through the ball joint shaft and one end abuts against the two side walls of the first ball joint head. One end of the transverse loading threaded shaft is threaded to the end of the first ball joint head. The transverse locking washer passes through the transverse loading threaded shaft and its end face abuts against the cylindrical surface of the first ball joint head for fixation. The adjuster is threaded to the bottom end of the ball joint shaft. The sensor connecting flange of the ball joint assembly is fixedly connected to the top of the horizontal plate by screws. The vertical plate is fixedly connected to both sides of the horizontal plate by screws. The reinforcing horizontal plate is welded to the inner side wall of the vertical plate. The support rod passes through the vertical plate and is fixedly connected in the mating hole. One end of the support rod with a flange is located on the inner side wall of the vertical plate, and the other end is fixedly connected to the outer side wall of the vertical plate by a lock nut.

[0008] As a preferred testing device for a swing sample according to the present invention, the power loading assembly comprises a second ball joint head, a piston and connecting rod, a valve block connecting plate, a valve block, an accumulator, a cylinder liner assembly, an upper hinge plate, a hinge fixing base, and a hinge assembly. The second ball joint head has the same structure as the first ball joint head of the ball joint assembly. The hinge assembly comprises a ball joint seat, a ball joint baffle, a ball joint pressure plate, and a cross hinge shaft. The second ball joint head is threaded to the top of the piston and connecting rod via a transverse loading threaded shaft. The piston and connecting rod is connected inside the cylinder of the cylinder liner assembly. The valve block connecting plate is fixedly connected to the outer surface of the cylinder liner assembly by screws. The valve block is fixedly connected to the outer wall of the valve block connecting plate by screws. The accumulator is fixedly connected to the bottom end of the valve block connecting plate by threads. The upper hinge plate is fixedly connected to the bottom surface of the cylinder liner assembly. The top ends of the left and right ball joint seats in the hinge assembly are fixedly connected to the bottom end of the upper hinge plate by screws. The bottom ends of the front and rear ball joint seats are fixedly connected to the top end of the hinge fixing base by screws.

[0009] As a preferred testing device for a swing sample according to the present invention, the cross hinge shaft of the power loading assembly is connected to the mating hole of the ball joint seat, the ball joint pressure plate is fixedly connected to the end of the ball joint seat by screws, and the ball joint baffle is fixedly connected to the end of the ball joint seat by screws.

[0010] As a preferred testing device for a swing sample according to the present invention, the swing sample comprises a receiving flange, a sensor, an upper sealing plate, an outlet connecting plate, swing lugs, a bearing square bracket, a thrust base, a lower sealing plate, a loading bearing seat, and a bellows. The upper and lower ends of the bellows are fixedly connected to the outlet connecting plate and the thrust base by welding. The receiving flange is fixedly connected to the outlet connecting plate by screws. The upper sealing plate is fixedly connected to the receiving flange by screws. The sensor is fixedly connected to the top of the upper sealing plate. The front and rear swing lugs are fixedly connected to the front and rear outer walls of the outlet connecting plate by screws. The left and right swing lugs are fixedly connected to the left and right outer walls of the thrust base by screws. The connecting shaft of the bearing square bracket is located in the mating hole of the swing lug and is fixedly installed at both ends by snap rings. The lower sealing plate is fixedly connected to the bottom end of the thrust base by screws. The loading bearing seat is fixedly connected to the bottom end of the lower sealing plate by screws.

[0011] As a preferred testing device for a swing sample according to the present invention, the hydrostatic support arc platform consists of a flipping arc platform, a side plate, a fixed arc platform, and a pressure sensor. The bottom convex surface of the flipping arc platform matches the top concave surface of the fixed arc platform. The pressure sensor is fixedly connected to the outer wall of one side of the flipping arc platform by threads. The side plate is fixedly connected to the left and right sides of the fixed arc platform by screws.

[0012] As a preferred test device for a swing sample according to the present invention, the rolling platform assembly consists of a translational table, a pulley guide seat, and a pulley assembly. The pulley guide seat is fixed to the bottom and both sides of the translational table by screws, and the pulley assembly connecting shaft is fixedly connected to the mating hole of the pulley guide seat by a lock nut.

[0013] As a preferred testing device for a swing sample according to the present invention, the servo actuator assembly consists of an actuator adapter flange, an actuator spoke sensor, an actuator piston, a front cover, a valve plate assembly, a cylinder, and a rear cover. The actuator spoke sensor is fixedly connected to the actuator adapter flange by screws, the actuator piston is fixedly connected to the bottom end face of the actuator spoke sensor by screws, the actuator piston is connected inside the cylinder, the valve plate assembly is fixed to the outer wall of the cylinder by screws, and the rear cover is fixedly connected to the bottom end of the cylinder by screws.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the cooperation of the main frame, support, swing assembly, power loading assembly, swing specimen, hydrostatic support arc platform, rolling platform assembly and servo actuator assembly, not only provides axial force but also provides the output force required for swinging, and simultaneously realizes fatigue testing of the radial force and swing torque of the swing specimen, thereby increasing the practicality of the testing equipment. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and constitute a part of the specification. The accompanying drawings, used in conjunction with the embodiments of the present invention, are for explaining the invention and do not constitute a limitation thereof. In the drawings: Figure 1 is a schematic diagram of a test device for a swinging specimen; Figure 2 is a schematic diagram of the main frame structure in Figure 1; Figure 3 is a schematic diagram of the structure of the swing component in Figure 1; Figure 4 is a schematic diagram of the ball joint assembly in Figure 3; Figure 5 is a schematic diagram of the static pressure tie rod assembly in Figure 3; Figure 6 is a schematic diagram of the dynamic loading component structure in Figure 1; Figure 7 is Figure 6 Schematic diagram of the hinge assembly; Figure 8 is a schematic diagram of the structure of the rocking specimen in Figure 1; Figure 9 is a schematic diagram of the hydrostatic support arc platform in Figure 1; Figure 10 is a schematic diagram of the structure of the rolling platform component in Figure 1; Figure 11 is a schematic diagram of the servo actuator component in Figure 1.

[0016] In the diagram: 1. Main frame platform; 2. Support; 3. Swing assembly; 4. Power loading assembly; 5. Swing sample; 6. Hydrostatic support arc platform; 7. Rolling platform assembly; 8. Servo actuator assembly; 11. Main beam; 12. Fixing bolt; 13. Upper locking nut; 14. Column; 15. Lower locking nut; 16. Base; 31. Swing bearing bracket; 32. Bearing baffle; 33. Rotating shaft; 34. Loading tripod; 35. Ball joint assembly; 36. Wheel spoke sensor; 37. Hydrostatic tie rod assembly; 351. First ball joint head; 352. Bushing; 353. Ball joint shaft; 354. Lateral locking pad; 355. Lateral loading threaded shaft; 356. Adjuster; 371. Sensor connection flange; 372. Reinforcing cross plate; 373. Pulling cross plate; 374. Pulling vertical plate; 375. Support rod; 41. Second ball joint; 42. Piston with connecting rod; 43. Valve block connection 44. Valve block; 45. Accumulator; 46. Cylinder liner assembly; 47. Upper hinge plate; 48. Hinge fixed base; 49. Hinge assembly; 491. Ball joint seat; 492. Ball joint baffle; 493. Ball joint pressure plate; 494. Cross hinge shaft; 51. Receiving flange; 52. Sensor; 53. Upper sealing plate; 54. Outlet connecting plate; 55. Swinging lug; 56. Bearing square bracket; 57. Thrust base; 58. Lower sealing plate; 59. Loading bearing seat; 510. Bellows; 61. Tilting arc platform; 62. Side plate; 63. Fixed arc platform; 64. Pressure sensor; 71. Translation table; 72. Pulley guide seat; 73. Pulley assembly; 81. Actuator adapter flange; 82. Actuator spoke sensor; 83. Actuating piston; 84. Front cover; 85. Valve plate assembly; 86. Cylinder; 87. Rear cover. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please refer to Figures 1-11. This invention provides the following technical solution: a testing device for a swing sample, comprising a main frame 1, a support 2, a swing assembly 3, a dynamic loading assembly 4, a swing sample 5, a hydrostatic support arc platform 6, a rolling platform assembly 7, and a servo actuator assembly 8. The left end of the support 2 is fixed to the main frame 1 with screws, and the bottom end of the support 2 is fixedly connected to the swing assembly 3 with screws. The top end of the swing sample 5 is connected to the main frame 1 with screws, and the bottom end of the swing sample 5 is connected to the hydrostatic support arc platform 6 with screws. The hydrostatic support arc platform 6 is connected to the rolling platform assembly 7 with screws. The rollers of the rolling platform assembly 7 are limited to slide between the rollers and the column 14 of the main frame platform 1. The top of the servo actuator assembly 8 is fixedly connected to the bottom of the rolling platform assembly 7 by bolts. The back of the servo actuator assembly 8 is fixedly connected to the base of the main frame platform 1 by screws. The section with the flange of the swing assembly 3 is fixedly connected to the hydrostatic support arc platform 6 by screws. The power loading assembly 4 is connected to the swing assembly 3.

[0019] Preferably, the main frame 1 is composed of a main beam 11, fixing bolts 12, upper locking nuts 13, columns 14, lower locking nuts 15, and a base 16. The columns 14 are provided with four lower locking nuts 15 connected to their bottom ends, and the lower locking nuts 15 of the four columns 14 are placed in the grooves of the base 16. The surface of the columns 14 is threaded and threaded to the lower locking nuts 15. The lower locking nuts 15 are fixed to the top of the base 16 by screws. The four mating holes through the surface of the main beam 11 pass through the surface of the columns 14 and are connected to the top of the upper locking nuts 13. The bottom end of the fixing bolts 12 is threaded and fixed to the top of the columns 14.

[0020] Preferably, the rocking assembly 3 comprises a rocking bearing bracket 31, a bearing baffle 32, a rotating shaft 33, a loading tripod 34, a ball joint assembly 35, a spoke sensor 36, and a hydrostatic tie rod assembly 37. The ball joint assembly 35 consists of a first ball joint head 351, a bushing 352, a ball joint shaft 353, a transverse locking washer 354, a transverse loading threaded shaft 355, and an adjuster 356. The hydrostatic tie rod assembly 37 consists of a sensor connecting flange 371, a reinforcing horizontal plate 372, a horizontal tension plate 373, a vertical tension plate 374, and a support rod 375. The rotating shaft 33 passes through the rocking bearing bracket 31 and connects to the mating hole of the loading tripod 34. The bearing baffle 32 is fixed to the outer wall of the rocking bearing bracket 31 by screws. The ball joint shaft 353 of the ball joint assembly 35 passes through the loading tripod 34 and connects to the mating hole, and is fixed by a nut. The transverse loading threaded shaft 355 of the ball joint assembly 35 connects to the spoke sensor 36. The spoke sensor 36 is fixedly connected to the left end of the hydrostatic tie rod assembly 37 by screws. The sensor is connected to the flange 371 sidewall.

[0021] Preferably: the outer cylindrical surface of the ball joint shaft 353 of the ball joint assembly 35 is engaged with the inner hole of the first ball joint head 351; the bushing 352 passes through the ball joint shaft 353 and one end abuts against the two side walls of the first ball joint head 351; one end of the transverse loading threaded shaft 355 is threaded to the end of the first ball joint head 351; the transverse locking washer 354 passes through the transverse loading threaded shaft 355 and its end face abuts against the cylindrical surface of the first ball joint head 351 for fixation; the adjuster 356 is threaded to the bottom end of the ball joint shaft 353; the sensor connecting flange 371 of the ball joint assembly 35 is fixedly connected to the top of the horizontal plate 373 by screws; the vertical plate 374 is fixedly connected to both sides of the horizontal plate 373 by screws; the reinforcing horizontal plate 372 is welded to the inner side wall of the vertical plate 374; the support rod 375 passes through the vertical plate 374 and is fixedly connected in the mating hole; the support rod 375... One end with the flange is located on the inner wall of the tie plate 374, and the other end is fixedly connected to the outer wall of the tie plate 374 by a lock nut.

[0022] Preferably, the power loading assembly 4 comprises a second ball joint head 41, a piston and connecting rod 42, a valve block connecting plate 43, a valve block 44, an accumulator 45, a cylinder liner assembly 46, an upper hinge plate 47, a hinge fixing base 48, and a hinge assembly 49. The second ball joint head 41 has the same structure as the first ball joint head 351 of the ball joint assembly 35. The hinge assembly 49 comprises a ball joint seat 491, a ball joint baffle 492, a ball joint pressure plate 493, and a cross hinge shaft 494. The second ball joint head 41 is threaded to the top of the piston and connecting rod 42 via a transverse loading threaded shaft. The piston and connecting rod 42 is connected inside the cylinder of the cylinder liner assembly 46. The valve block connecting plate 43 is fixedly connected to the outer cylindrical wall of the cylinder liner assembly 46 by screws. The valve block 44 is fixedly connected to the outer wall of the valve block connecting plate 43 by screws. The accumulator 45 is fixedly connected to the valve block connecting plate 43 by threads. At the bottom end, the upper hinge plate 47 is fixedly connected to the bottom surface of the cylinder liner assembly 46. The top ends of the left and right ball joint seats 491 in the hinge assembly 49 are fixedly connected to the bottom end of the upper hinge plate 47 by screws. The bottom ends of the two ball joint seats 491 are fixedly connected to the top of the hinged fixed base 48 by screws.

[0023] Preferably, the cross hinge shaft 494 of the power loading assembly 4 is connected to the mating hole of the ball joint seat 491, the ball joint pressure plate 493 is fixedly connected to the end of the ball joint seat 491 by screws, and the ball joint baffle 492 is fixedly connected to the end of the ball joint seat 491 by screws.

[0024] Preferred configuration: The swing test specimen 5 comprises a receiving flange 51, a sensor 52, an upper sealing plate 53, an outlet connecting plate 54, swing lugs 55, a bearing square bracket 56, a thrust base 57, a lower sealing plate 58, a loading bearing seat 59, and a bellows 510. The upper and lower ends of the bellows 510 are fixedly connected to the outlet connecting plate 54 and the thrust base 57 by welding. The receiving flange 51 is fixedly connected to the outlet connecting plate 54 by screws. The upper sealing plate 53 is fixedly connected to the receiving flange 51 by screws. The sensor 52 is fixedly connected to the top of the upper sealing plate 53. The front and rear swing lugs 55 are fixedly connected to the front and rear outer walls of the outlet connecting plate 54 by screws. The left and right swing lugs 55 are fixedly connected to the left and right outer walls of the thrust base 57 by screws. The connecting shaft of the bearing square bracket 56 is located in the mating hole of the swing lug 55 and is fixedly installed at both ends by snap rings. The lower sealing plate 58 is fixedly connected to the bottom end of the thrust base 57 by screws. The loading bearing seat 59... It is fixedly connected to the bottom end of the lower sealing plate 58 by screws.

[0025] Preferably, the hydrostatic support arc platform 6 is composed of a flipping arc platform 61, a side plate 62, a fixed arc platform 63, and a pressure sensor 64. The bottom convex surface of the flipping arc platform 61 matches the top concave surface of the fixed arc platform 63. The pressure sensor 64 is fixedly connected to the outer wall of one side of the flipping arc platform 61 by threads. The side plate 62 is fixedly connected to the left and right sides of the fixed arc platform 63 by screws.

[0026] Preferably, the rolling platform assembly 7 consists of a translational table 71, a pulley guide seat 72, and a pulley assembly 73. The pulley guide seat 72 is fixed to the bottom and both sides of the translational table 71 by screws. The connecting shaft of the pulley assembly 73 is fixedly connected to the mating hole of the pulley guide seat 72 by a lock nut.

[0027] Preferably, the servo actuator assembly 8 consists of an actuator adapter flange 81, an actuator spoke sensor 82, an actuator piston 83, a front cover 84, a valve plate assembly 85, a cylinder 86, and a rear cover 87. The actuator spoke sensor 82 is fixedly connected to the actuator adapter flange 81 by screws. The actuator piston 83 is fixedly connected to the bottom end face of the actuator spoke sensor 82 by screws. The actuator piston 83 is connected inside the cylinder of the cylinder 86. The valve plate assembly 85 is fixed to the outer wall of the cylinder 86 by screws. The rear cover 87 is fixedly connected to the bottom end of the cylinder 86 by screws.

[0028] Working Principle: During operation, the external oil source inputs hydraulic power through the valve plate assembly 85 and valve block 44, causing the actuator to start moving. The external stamping equipment inputs pressure into the bellows 510 through the pressure port of the upper sealing plate 53, increasing the internal pressure and thus elongating the axial dimension. At this time, the sensor 52 starts recording the pressure value. The servo actuator assembly 8 then starts working, and the piston 83 moves upward under hydraulic pressure, transmitting upward thrust. The actuator spoke sensor 82 starts recording the force data. The lower end face of the bellows 510 is subjected to upward thrust and pressurization pressure, maintaining a dynamic balance. By continuously increasing the stamping pressure and the output force of the servo actuator, material-related pressure and force data can be obtained. The power loading assembly 4 starts working, with the external oil source inputting hydraulic power through the valve block 44. The piston and connecting rod 42 periodically extend and retract. The loading tripod 34 in the swing assembly 3 begins to rotate periodically around the rotating shaft 33. To convert rotation into translation, the section of support rod 375 with flange in the hydrostatic tie rod assembly 37 of the rocking assembly 3 is fixedly connected to the flipping arc platform 61 by screws. The translational thrust is transmitted, and the rotating arc platform 61 begins to move periodically along the concave surface of the fixed arc platform 63. The swinging specimen 5 begins to swing periodically, and the spoke sensor 36 records the data, completing the test of the swinging specimen 5.

[0029] It should be noted that, due to the complexity of the equipment, it is assembled according to the installation sequence. The main frame platform 1 consists of a main beam 11, fixing bolts 12, upper locking nuts 13, columns 14, lower locking nuts 15, and a base 16. The base 16 is placed on the ground. The lower locking nuts 15 of the four columns 14 are placed in the grooves of the base 16. The threaded stepped shafts of the columns 14 are connected to the internal threads of the lower locking nuts 15. At the same time, the lower locking nuts 15 are fixed to the base 16 by screws. The four mating holes of the main beam 11 pass through the stepped shafts of the columns 14, and their upper ends are fixed with the upper locking nuts 13. The lower ends of the fixing bolts 12 are threaded and fixed to the columns 14, completing the installation of the main frame platform 1. The left end face of the bracket 2 is fixed to the main beam 11 by screws. The actuator spoke sensor 82 is fixed to the actuator adapter flange 81 by screws. The actuator piston 83 is fixed to the actuator spoke sensor 82 by screws. The lower end face is fixedly connected, the piston 83 is clearance-fitted with the inner cylindrical surface of the cylinder 86, the valve plate assembly 85 is fixed to the cylinder 86 with screws, and the rear end cover 87 is fixed to the lower surface of the cylinder 86 with screws; the rear end cover 87 is fixedly connected to the upper surface of the base 16 of the main frame platform 1 with screws, completing the installation and fixing of the servo actuator assembly 8; the pulley guide seat 72 is fixed to the translation table 71 with screws, and the connecting shaft of the pulley assembly 73 is fixed in the mating hole of the pulley guide seat 72 with a lock nut; the large end face of the actuator adapter flange 81 in the servo actuator assembly 8 is fixedly connected to the lower surface of the translation table 71 with bolts, completing the installation and fixing of the rolling platform assembly 7; the lower convex surface of the flipping arc platform 61 mates with the concave surface of the fixed arc platform 63, and the pressure sensor 64 is fixed to the lower surface of the fixed arc platform 63 with threads. On the rotating arc platform 61; the side plate 62 is fixed to the left and right sides of the fixed arc platform 63 by screws. The fixed arc platform 63 is fixedly connected to the translational stage 71 in the rolling platform assembly 7 by screws, completing the installation of the hydrostatic support arc platform 6; the upper and lower end faces of the bellows 510 are fixedly connected to the outlet connecting plate 54 and the thrust base 57 by welding respectively. The receiving flange 51 is fixedly connected to the outlet connecting plate 54 by screws. The upper sealing plate 53 is fixedly connected to the receiving flange 51 by screws. The sensor 152 is fixed to the upper sealing plate 53 by threaded connection. The swing lug 55 is fixed to the outlet connecting plate 54 and the thrust base 57 by screws respectively. The connecting shaft of the bearing square bracket 56 passes through the mating hole of the swing lug 55, and its two ends are fixed by snap rings. The lower sealing plate 58 is fixed to the lower surface of the thrust base 57 by screws. The loading bearing seat 59 is fixed to the lower surface of the lower sealing plate 58 by screws. The receiving flange 51 of the swing sample 5 The large end face of the load bearing seat 59 is fixedly connected to the lower surface of the main beam 11 in the main frame 1 by screws. The large end face of the load bearing seat 59 is fixedly connected to the flipping arc platform 61 in the hydrostatic support arc platform 6 by screws, thus completing the installation of the swing sample 5. The swing bearing bracket 31 is fixedly connected to the lower end face of the bracket 2 by screws. The rotating shaft 33 passes through the mating hole of the swing bearing bracket 31 and the loading tripod 34. The bearing baffle 32 is fixed to the swing bearing bracket 31 by screws. The two ends of the rotating shaft 33 are fixed with lock nuts. The ball joint shaft 353 in the ball joint assembly 35 passes through the mating hole of the loading tripod 34 and is fixed at both ends with lock nuts. The transverse loading threaded shaft 355 in the ball joint assembly 35 is fixedly connected to the spoke sensor 36 by threads. The left end face of the spoke sensor 36 is fixed to the sensor connection flange 371 in the hydrostatic tie rod assembly 37 by screws. The support rod 375 in the hydrostatic tie rod assembly 37 in the swing assembly 3 The section with the flange is fixedly connected to the flipping arc platform 61 with screws, completing the installation and fixation of the swing assembly 3; the second ball joint 41 is subjected to lateral loading. The threaded shaft 355 is connected to the threaded hole of the piston and connecting rod 42, and the piston and connecting rod 42 is clearance-fitted to the inner cylindrical surface of the cylinder liner assembly 46. The valve block connecting plate 43 is fixed to the outer cylindrical surface of the cylinder liner assembly 46 by screws. The valve block 44 is fixed to the valve block connecting plate 43 by screws. The accumulator 45 is fixed to the lower end of the valve block connecting plate 43 by a threaded connection. The upper hinge plate 47 is fixed to the lower surface of the cylinder liner assembly 46 by screws passing through the threaded hole in its center. The ball joint seat 491 in the hinge assembly 49 is fixed to the upper hinge plate 47 by screws. The lower ball joint seat 491 is fixed to the hinge fixing base 48 by screws. The hinge fixing base 48 is fixed to the upper surface of the base 16 of the main frame platform 1 by screws, thus completing the connection and installation of the equipment.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing device for a swinging sample, characterized in that, The system includes a main frame platform (1), a bracket (2), a swing assembly (3), a power loading assembly (4), a swing specimen (5), a hydrostatic support arc platform (6), a rolling platform assembly (7), and a servo actuator assembly (8). The left end of the bracket (2) is fixed to the main frame platform (1) with screws. The bottom end of the bracket (2) is fixedly connected to the swing assembly (3) with screws. The top end of the swing specimen (5) is connected to the main frame platform (1) with screws. The bottom end of the swing specimen (5) is connected to the hydrostatic support arc platform (6) with screws. The hydrostatic support arc platform (6) is connected to the rolling platform assembly (7) with screws. The rollers of the rolling platform assembly (7) slide between the rollers and the column (14) of the main frame platform (1). The top end of the servo actuator assembly (8) is fixedly connected to the bottom end of the rolling platform assembly (7) by bolts, the back end of the servo actuator assembly (8) is fixedly connected to the base of the host frame platform (1) by screws, the swing assembly (3) with a flange section is fixedly connected to the hydrostatic support arc platform (6) by screws, and the power loading assembly (4) is connected to the swing assembly (3). The rocking assembly (3) consists of a rocking bearing bracket (31), a bearing baffle (32), a rotating shaft (33), a loading tripod (34), a ball joint assembly (35), a spoke sensor (36), and a hydrostatic tie rod assembly (37). The ball joint assembly (35) consists of a first ball joint head (351), a bushing (352), a ball joint shaft (353), a transverse locking washer (354), a transverse loading threaded shaft (355), and an adjuster (356). The hydrostatic tie rod assembly (37) consists of a sensor connecting flange (371), a reinforcing cross plate (372), a horizontal pull plate (373), a vertical pull plate (374), and a support rod (375). The rotating shaft (33) passes through the rocking bearing bracket (31) and connects to... The loading tripod (34) has a mating hole, the bearing baffle (32) is fixed to the outer wall of the rocker bearing bracket (31) by screws, the ball joint shaft (353) of the ball joint assembly (35) passes through the loading tripod (34) and is connected in the mating hole and fixed by nuts, the transverse loading thread shaft (355) of the ball joint assembly (35) is fixedly connected to the spoke sensor (36), and the left end of the spoke sensor (36) is fixedly connected to the side wall of the sensor connection flange (371) in the hydrostatic tie rod assembly (37) by screws; The outer cylindrical surface of the ball joint shaft (353) of the ball joint assembly (35) is engaged with the inner hole of the first ball joint head (351). The bushing (352) passes through the ball joint shaft (353) and one end abuts against the two side walls of the first ball joint head (351). One end of the transverse loading threaded shaft (355) is threaded to the end of the first ball joint head (351). The transverse locking washer (354) passes through the transverse loading threaded shaft (355) and its end face abuts against the cylindrical surface of the first ball joint head (351) for fixation. The adjuster (356) is threaded to the bottom end of the ball joint shaft (353). The sensor connection flange (371) of the ball joint assembly (35) is fixedly connected to the top of the horizontal plate (373) by screws. The vertical plate (374) is fixedly connected to both sides of the horizontal plate (373) by screws. The reinforcing horizontal plate (372) is welded to the inner wall of the vertical plate (374). The support rod (375) passes through the vertical plate (374) and is fixedly connected in the mating hole. One end of the support rod (375) with a flange is located on the inner wall of the vertical plate (374) and the other end is fixedly connected to the outer wall of the vertical plate (374) by a lock nut. The swing test specimen (5) is composed of a receiving flange (51), a sensor (52), an upper sealing plate (53), an outlet connecting plate (54), a swing lifting lug (55), a bearing square bracket (56), a thrust base (57), a lower sealing plate (58), a loading bearing seat (59), and a bellows (510). The upper and lower ends of the bellows (510) are welded to the outlet connecting plate (54) and The thrust base (57) is fixedly connected, the receiving flange (51) is fixedly connected to the outlet connecting plate (54) by screws, the upper sealing plate (53) is fixedly connected to the receiving flange (51) by screws, the sensor (52) is fixedly connected to the top of the upper sealing plate (53), the front and rear swing lugs (55) are fixedly connected to the front and rear outer walls of the outlet connecting plate (54) by screws, the left and right swing lugs (55) are fixedly connected to the left and right outer walls of the thrust base (57) by screws, the connecting shaft of the bearing square bracket (56) is located in the mating hole of the swing lug (55) and is fixedly installed at both ends by snap rings, the lower sealing plate (58) is fixedly connected to the bottom of the thrust base (57) by screws, and the loading bearing seat (59) is fixedly connected to the bottom of the lower sealing plate (58) by screws.

2. The testing device for a swinging specimen according to claim 1, characterized in that: The main frame platform (1) is composed of a main beam (11), fixing bolts (12), upper locking nuts (13), columns (14), lower locking nuts (15), and a base (16). The columns (14) are provided with four lower locking nuts (15) connected to their bottom ends. The lower locking nuts (15) of the four columns (14) are placed in the grooves of the base (16). The surface of the columns (14) is threaded and threadedly connected to the lower locking nuts (15). The lower locking nuts (15) are fixed to the top of the base (16) by screws. The four mating holes through the surface of the main beam (11) pass through the surface of the columns (14) and are connected to the top of the upper locking nuts (13). The bottom end of the fixing bolts (12) is threadedly fixed to the top of the columns (14).

3. The testing device for a swinging specimen according to claim 1, characterized in that: The power loading assembly (4) consists of a second ball joint (41), a piston and connecting rod (42), a valve block connecting plate (43), a valve block (44), an accumulator (45), and a cylinder liner assembly (46). The assembly consists of an upper hinge plate (47), a hinge fixing base (48), and a hinge assembly (49). The second ball joint head (41) has the same structure as the first ball joint head (351) of the ball joint assembly (35). The hinge assembly (49) consists of a ball joint seat (491), a ball joint baffle (492), a ball joint pressure plate (493), and a cross joint shaft (494). The second ball joint head (41) is threaded to the top of the piston and connecting rod (42) through a transverse loading threaded shaft. The piston and connecting rod (42) is connected to the cylinder of the cylinder liner assembly (46). The valve block connecting plate (43) is fixedly connected to the outer cylindrical wall of the cylinder liner assembly (46) by screws. The valve block (44) is fixedly connected to the valve block connecting plate (43) by screws. On the outer wall, the accumulator (45) is fixedly connected to the bottom end of the valve block connecting plate (43) by a thread, the upper hinge plate (47) is fixedly connected to the bottom surface of the cylinder liner assembly (46), the top ends of the left and right ball joint seats (491) in the hinge assembly (49) are fixedly connected to the bottom end of the upper hinge plate (47) by screws, the bottom ends of the front and rear ball joint seats (491) are fixedly connected to the top end of the hinge fixing base (48) by screws, the cross hinge shaft (494) of the power loading assembly (4) is connected to the mating hole of the ball joint seat (491), the ball joint pressure plate (493) is fixedly connected to the end of the ball joint seat (491) by screws, and the ball joint baffle (492) is fixedly connected to the end of the ball joint seat (491) by screws.

4. The testing device for a swinging specimen according to claim 1, characterized in that: The hydrostatic support arc platform (6) consists of a flipping arc platform (61), a side plate (62), a fixed arc platform (63), and a pressure sensor (64). The bottom convex surface of the flipping arc platform (61) matches the top concave surface of the fixed arc platform (63). The pressure sensor (64) is fixedly connected to the outer wall of one side of the flipping arc platform (61) by threads. The side plate (62) is fixedly connected to the left side of the fixed arc platform (63) by screws. Right sides.

5. The testing device for a swinging specimen according to claim 1, characterized in that: The rolling platform assembly (7) consists of a translational platform (71), a pulley guide seat (72), and a pulley assembly (73). The pulley guide seat (72) is fixed to the bottom and both sides of the translational platform (71) by screws. The connecting shaft of the pulley assembly (73) is fixedly connected to the mating hole of the pulley guide seat (72) by a lock nut.

6. The testing device for a swinging specimen according to claim 1, characterized in that: The servo actuator assembly (8) consists of an actuator adapter flange (81), an actuator spoke sensor (82), an actuator piston (83), a front cover (84), a valve plate assembly (85), a cylinder (86), and a rear cover (87). The actuator spoke sensor (82) is fixedly connected to the actuator adapter flange (81) by screws. The actuator piston (83) is fixedly connected to the bottom end face of the actuator spoke sensor (82) by screws. The actuator piston (83) is connected inside the cylinder (86). The valve plate assembly (85) is fixed to the outer wall of the cylinder (86) by screws. The rear cover (87) is fixedly connected to the bottom end of the cylinder (86) by screws.

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