Membrane material prestress loading and irradiation test method and device

Abstract

The invention relates to the technical field of membrane material tests, in particular to a membrane material prestress loading and irradiation test method and device.A storage cavity is formed in the upper end of a connecting base, a rotating block is movably connected into the storage cavity, two first sliding grooves are formed in the outer side of the rotating block, and a sliding connection cavity is formed in the upper end of the rotating block; a clamping mechanism is arranged in the sliding connection cavity, a pressure gauge is fixedly installed in the lower end of the sliding connection cavity, and a film jacking mechanism is clamped in the clamping mechanism. The film jacking mechanism is arranged at the upper end of the storage mechanism, after the clamping mechanism makes contact with an arc-shaped rod, the clamping mechanism can be opened, and when the clamping mechanism is separated from the arc-shaped rod, the clamping mechanism can clamp the film jacking mechanism at the corresponding position and drive the film jacking mechanism to the upper side of a connecting base; after a membrane material is mounted through the membrane material mounting mechanism and a certain balance weight is added, an irradiation test can be started, rapid replacement of the top membrane mechanism is achieved, and meanwhile the used top membrane mechanism is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane material testing, and specifically provides a method and device for prestress loading and irradiation testing of membrane materials. Background Art

[0002] Membrane materials used in aerospace need to withstand the strict tests of the space environment. Taking solar sails as an example: the sail surface of solar sails uses ultra-thin and light membrane materials. When the sail surface materials are exposed to the space environment for a long time and affected by space particle radiation, their performance will degrade, which affects their application in the space environment. With the development of aerospace spacecraft, the requirements for aerospace materials are more, higher, and newer. During the research and development of new membrane materials, a series of research and tests need to be carried out to study the mechanism of the interaction between space particles and the membrane, the changes in the performance of the membrane material after space particle irradiation, etc., to detect whether it can meet the requirements of the space environment.

[0003] For example, the Chinese patent with the publication number CN112611639B discloses a device for thin film prestress loading and irradiation testing. The device includes a frame, a support block, an anvil, and a pressure gauge; the support block, the anvil, and the pressure gauge can all move up and down inside the frame. The thin film material to be tested is fixed on the frame by a pressing plate. By adjusting the support screw, the position of the anvil inside the frame can be changed, and thus the magnitude of the external force applied by the anvil can be adjusted.

[0004] However, the above solution has the following deficiencies: in the above patent, different forms of prestress can be loaded by replacing different anvils. However, in the above patent, the anvils need to be manually replaced when replacing the anvils, and the rapid replacement of the anvils cannot be achieved, which affects the continuity of the experiment. At the same time, there is a lack of protection for the anvils after the test is completed. When the device is moved to a new position, the anvil may be slightly damaged due to collision during the handling process, which affects the final test results. Therefore, we introduce a method and device for prestress loading and irradiation testing of membrane materials. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and device for prestress loading and irradiation testing of membrane materials to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A prestress loading and irradiation test device for a membrane material, comprising a connecting seat. A storage cavity is provided at the upper end of the connecting seat. A rotating block is movably connected in the storage cavity. Two first sliding grooves are provided on the outer side of the rotating block. A sliding cavity is provided inside the upper end of the rotating block. A clamping mechanism is provided in the sliding cavity. A pressure gauge is fixedly installed at the lower end inside the sliding cavity. A top membrane mechanism is clamped in the clamping mechanism. After the top membrane mechanism contacts the membrane material, the membrane material deforms. A sealing mechanism is provided above the storage cavity to seal the storage cavity. A storage mechanism is provided in the storage cavity to store the replaced top membrane mechanism. A membrane material installation mechanism is provided at the upper end of the connecting seat to clamp the membrane material. A driving motor is fixedly connected inside the connecting seat. The output end of the driving motor is fixedly connected to the rotating block. Arc-shaped rods are provided on both sides of the rotating block. The arc-shaped rods are fixedly connected in the storage cavity. One end of the arc-shaped rod is arranged in an inclined shape.

[0007] Preferably, the clamping mechanism includes a T-shaped positioning column. The lower end of the T-shaped positioning column is slidably connected in the sliding cavity. A support spring is fixedly connected in the sliding cavity. The other end of the support spring is fixedly connected to the T-shaped positioning column. A positioning groove is provided at the upper end of the T-shaped positioning column.

[0008] Preferably, two cross-shaped clamping rods are movably connected inside both sides of the T-shaped positioning column. The opposite ends of the two cross-shaped clamping rods extend into the positioning groove. A second connecting spring is sleeved on the outer side of the cross-shaped clamping rod. One end of the second connecting spring is fixedly connected to the positioning groove, and the other end is fixedly connected to the cross-shaped clamping rod. The opposite ends of the two cross-shaped clamping rods are respectively fixedly connected to an L-shaped connecting plate.

[0009] Preferably, the top membrane mechanism includes a first anvil, a second anvil, and a third anvil. Two clamping through holes are provided on the outer sides of the first anvil, the second anvil, and the third anvil. The cross-shaped clamping rod is clamped in the clamping through hole.

[0010] Preferably, the sealing mechanism includes two sealing plates. The sealing plates are slidably connected in a second sliding groove. The second sliding groove is provided inside the connecting seat. Both sealing plates are fixedly connected to a U-shaped connecting rod. The U-shaped connecting rod is movably connected to the upper end of the connecting seat. A telescopic cylinder is fixedly connected to the upper end of the connecting seat. The output end of the telescopic cylinder is fixedly connected to the U-shaped connecting rod.

[0011] Preferably, the storage mechanism includes a circular ring disposed within the storage cavity. A T-shaped toothed ring is fixedly connected to the outer side of the circular ring and is slidably connected within a T-shaped groove opened in the connecting seat. A storage groove and several positioning magnets are provided at the upper end of the circular ring. The T-shaped toothed ring is fixedly connected to a gear, and the T-shaped toothed ring is disposed within the connecting seat. The gear is fixedly connected to the output end of a connecting motor, and the connecting motor is fixedly connected within the connecting seat.

[0012] Preferably, the film material mounting mechanism includes a first clamping ring. Several sliding rods are fixedly connected to the lower end of the first clamping ring and are slidably connected within the upper end of the connecting seat. A first connecting spring is sleeved on the outer side of the sliding rod. One end of the first connecting spring is fixedly connected to the first clamping ring, and the other end is fixedly connected to the connecting seat. A second clamping ring is provided above the first clamping ring. Several screw rods are provided at the upper end of the second clamping ring, and several screw holes are provided at the upper end of the first clamping ring. The screw rods are screwed into the screw holes. Storage boxes are fixedly connected to both sides of the first clamping ring.

[0013] In addition, to achieve the above object, the present invention also provides a test method for the film material prestress loading and irradiation test device described above, including: S1. Clamp the film material between the first clamping ring and the second clamping ring and keep it in a taut state. Rotate the first anvil, the second anvil, and the third anvil to be used to the position of the inclined end of the arc-shaped rod. Open the telescopic cylinder so that the two sealing plates enter the second chute. Open the driving motor to drive the rotating block to rotate. When the two L-shaped connecting plates move to the position of the inclined end of the arc-shaped rod, the two cross-shaped clamping rods will move accordingly. S2. When the connecting end of the first anvil enters the positioning groove, the L-shaped connecting plate will also disengage from the contact with the arc-shaped rod, and the cross-shaped clamping rod will be clamped into the clamping through hole. As the rotating block rotates, the first anvil will move accordingly. When the first anvil rotates to the upper side of the connecting seat, the rotating block stops rotating. S3. By adding weights to the upper end of the storage box, the second clamping ring and the first clamping ring can drive the film material to move downward and contact the first anvil. After the film material contacts the first anvil, the corresponding force will be transmitted to the support spring. Measure the magnitude of the loading force on the film material through the pressure gauge. After the film material contacts the first anvil, it will deform, and at this time, the film material can be irradiated.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging the top film mechanism above the storage mechanism, after rotating the top film mechanism to be used to a suitable position through the storage mechanism, two sealing plates are opened, and the rotation of the rotating block drives the clamping mechanism to move. When the clamping mechanism contacts the arc-shaped rod, the clamping mechanism will open. When the clamping mechanism disengages from the arc-shaped rod, the clamping mechanism will clamp the top film mechanism at the corresponding position and drive it to the upper side of the connecting seat. After installing the film material through the film material installation mechanism and adding a certain weight, the irradiation test can be started. At the same time, after use, the top film mechanism can be stored back in the storage cavity, realizing the rapid replacement of the top film mechanism and protecting the used top film mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional sectional structural schematic diagram of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the storage cavity position of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the connection relationship between the rotating block and the T-shaped positioning column of the present invention; Figure 5 is a three-dimensional sectional structural schematic diagram of the connection relationship between the rotating block and the T-shaped positioning column of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the connection relationship between the ring and the top film mechanism of the present invention; Figure 7 is a three-dimensional sectional structural schematic diagram of the connecting seat of the present invention.

[0016] Figure 8 is a three-dimensional structural schematic diagram of the contact state between the L-shaped connecting ring and the arc-shaped rod of the present invention; Figure 9 is a three-dimensional structural schematic diagram of the arc-shaped rod of the present invention.

[0017] Figure 10 is a three-dimensional structural schematic diagram of the connection relationship between the sealing plate and the U-shaped connecting rod of the present invention.

[0018] In the figure: 1. Connecting seat; 2. Slide bar; 3. Telescopic cylinder; 4. First connecting spring; 5. Screw; 6. Storage box; 7. Second clamping ring; 8. First clamping ring; 9. First anvil; 10. Rotating block; 11. First chute; 12. L-shaped connecting plate; 13. Cross-shaped clamping rod; 14. Second connecting spring; 15. T-shaped positioning column; 16. Positioning magnet; 17. Storage groove; 18. T-shaped toothed ring; 19. Ring; 20. Storage cavity; 21. Sealing plate; 22. U-shaped connecting rod; 23. Sliding cavity; 24. Support spring; 25. Pressure gauge; 26. Driving motor; 27. Arc rod; 28. T-shaped groove; 29. Second chute; 30. Clamping through hole; 31. Threaded hole; 32. Second anvil; 33. Third anvil; 34. Gear; 35. Connecting motor; 36. Positioning groove. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-10 , the present invention provides a technical solution: Embodiment 1: A membrane material prestress loading and irradiation test device includes a connecting seat 1. A storage cavity 20 is opened at the upper end of the connecting seat 1. The storage cavity 20 is used for storing the first anvil 9, the second anvil 32 and the third anvil 33. A rotating block 10 is movably connected in the storage cavity 20. Two first chutes 11 are opened on the outer side of the rotating block 10. A sliding cavity 23 is opened in the upper end of the rotating block 10. A clamping mechanism is arranged in the sliding cavity 23. A pressure gauge 25 is fixedly installed in the lower end of the sliding cavity 23. The pressure gauge 25 can be selected with a suitable model and size during use. A top membrane mechanism is clamped in the clamping mechanism. After the top membrane mechanism contacts the membrane material, the membrane material is deformed. A sealing mechanism is arranged on the upper side of the storage cavity 20. The storage cavity 20 is sealed by the sealing mechanism to prevent impurities in the external environment from entering the storage cavity 20 and falling onto the surface of the top membrane mechanism.

[0021] A storage mechanism is provided inside the storage cavity 20 to store the replaced top film mechanism. A film material installation mechanism is provided at the upper end of the connecting seat 1 to clamp the film material. A driving motor 26 is fixedly connected inside the connecting seat 1. The driving motor 26 can be selected with appropriate dimensions and models during use. The output end of the driving motor 26 is fixedly connected to the rotating block 10. By turning on the driving motor 26, the rotating block 10 can be driven to rotate. Arc-shaped rods 27 are provided on both sides of the rotating block 10. The arc-shaped rods 27 are fixedly connected inside the storage cavity 20. One end of the arc-shaped rod 27 is arranged in an inclined shape. When the clamping mechanism contacts the inclined end of the arc-shaped rod 27, at this time, as the rotating block 10 rotates, the clamping mechanism will open. When the film material installation mechanism disengages from the arc-shaped rod 27, the clamping mechanism will return to the clamping state again.

[0022] Embodiment 2: On the basis of Embodiment 1, in order to be able to store the used top film mechanism, the clamping mechanism includes a T-shaped positioning column 15. The lower end of the T-shaped positioning column 15 is slidably connected inside the sliding cavity 23. A support spring 24 is fixedly connected inside the sliding cavity 23. The other end of the support spring 24 is fixedly connected to the T-shaped positioning column 15. A positioning groove 36 is opened at the upper end of the T-shaped positioning column 15. Under the elastic force of the support spring 24, the top film mechanism will always be in contact with the film material.

[0023] Two cross-shaped clamping rods 13 are movably connected inside both sides of the T-shaped positioning column 15. The opposite ends of the two cross-shaped clamping rods 13 extend into the positioning groove 36. A second connecting spring 14 is sleeved outside the cross-shaped clamping rod 13. One end of the second connecting spring 14 is fixedly connected to the positioning groove 36, and the other end is fixedly connected to the cross-shaped clamping rod 13. The opposite ends of the two cross-shaped clamping rods 13 are respectively fixedly connected to the L-shaped connecting plates 12. When the two L-shaped connecting plates 12 move to the position of the inclined end of the arc-shaped rod 27, at this time, as the rotating block 10 rotates, the L-shaped connecting plates 12 will move outward under the guidance of the arc-shaped rod 27, and at the same time, the two cross-shaped clamping rods 13 will move accordingly.

[0024] The top film mechanism includes a first anvil 9, a second anvil 32 and a third anvil 33. The first anvil 9, the second anvil 32 and the third anvil 33 are all made of metal materials and can be attracted by magnets. Two clamping through holes 30 are opened on the outer sides of the first anvil 9, the second anvil 32 and the third anvil 33. The cross-shaped clamping rod 13 is clamped in the clamping through holes 30. During the test, first anvils 9, second anvils 32 and third anvils 33 with different shapes can be selected for testing the film materials. The sealing mechanism includes two sealing plates 21. The sealing plates 21 are slidably connected in the second sliding groove 29. The second sliding groove 29 is opened in the connecting seat 1. The two sealing plates 21 are both fixedly connected to the U-shaped connecting rod 22. The U-shaped connecting rod 22 is movably connected to the upper end of the connecting seat 1. A telescopic cylinder 3 is fixedly connected to the upper end of the connecting seat 1. The output end of the telescopic cylinder 3 is fixedly connected to the U-shaped connecting rod 22.

[0025] The storage mechanism includes a ring 19. The ring 19 is arranged in the storage cavity 20. A T-shaped toothed ring 18 is fixedly connected to the outer side of the ring 19. The T-shaped toothed ring 18 is slidably connected in the T-shaped groove 28. The T-shaped groove 28 is opened in the connecting seat 1. A storage groove 17 is opened at the upper end of the ring 19. The storage groove 17 is used for storing the first anvil 9, and several positioning magnets 16 are used for limiting the second anvil 32 and the third anvil 33. The T-shaped toothed ring 18 is fixedly connected to the gear 34. The T-shaped toothed ring 18 is arranged in the connecting seat 1. The gear 34 is fixedly connected to the output end of the connecting motor 35. The connecting motor 35 is fixedly connected in the connecting seat 1. The connecting motor 35 can be a servo motor with a suitable size and model for use, so that the ring 19 stops after rotating 45 degrees each time. By driving the gear 34 to rotate through the connecting motor 35, the gear 34 drives the T-shaped toothed ring 18 to rotate. At this time, the ring 19 rotates and drives the first anvil 9, the second anvil 32 and the third anvil 33 to move.

[0026] The film material installation mechanism includes a first clamping ring 8. A plurality of sliding rods 2 are fixedly connected to the lower end of the first clamping ring 8. The sliding rods 2 are slidably connected in the upper end of the connecting seat 1. A first connecting spring 4 is sleeved on the outer side of the sliding rods 2. One end of the first connecting spring 4 is fixedly connected to the first clamping ring 8, and the other end is fixedly connected to the connecting seat 1. A second clamping ring 7 is arranged on the upper side of the first clamping ring 8. A plurality of screw rods 5 are arranged on the upper end of the second clamping ring 7. A plurality of screw holes 31 are arranged on the upper end of the first clamping ring 8. The screw rods 5 are screwed in the screw holes 31. Storage boxes 6 are fixedly connected to both sides of the first clamping ring 8. By loosening a plurality of screw rods 5 in turn, the second clamping ring 7 can be removed. After the removal is completed, the film material is placed between the first clamping ring 8 and the second clamping ring 7 and is in a taut state. By screwing the screw rods 5 tightly in the screw holes 31, the second clamping ring 7 can be connected to the first clamping ring 8. At this time, the clamping of the film material is completed.

[0027] In addition, to achieve the above object, the present invention further provides a test method for the above-mentioned membrane material prestress loading and irradiation test device, including S1. Clamp the membrane material between the first clamping ring 8 and the second clamping ring 7 and keep it in a taut state. Rotate the first anvil 9, the second anvil 32, and the third anvil 33 to be used to the position of the inclined end of the arc-shaped rod 27. Open the telescopic cylinder 3 to make the two sealing plates 21 enter the second chute 29. Open the drive motor 26 to drive the rotating block 10 to rotate. When the two L-shaped connecting plates 12 move to the position of the inclined end of the arc-shaped rod 27, the two cross-shaped clamping rods 13 will move accordingly; S2. After the connecting end of the first anvil 9 enters the positioning groove 36, the L-shaped connecting plate 12 will also disengage from the arc-shaped rod 27, and the cross-shaped clamping rod 13 will be clamped into the clamping through hole 30. As the rotating block 10 rotates, the first anvil 9 will move accordingly. When the first anvil 9 rotates to the upper side of the connecting seat 1, the rotating block 10 stops rotating; S3. Add a counterweight to the upper end of the storage box 6 to make the second clamping ring 7 and the first clamping ring 8 drive the membrane material to move downward and contact the first anvil 9. After the membrane material contacts the first anvil 9, the corresponding force will be transmitted to the support spring 24. Measure the magnitude of the loading force on the membrane material through the pressure gauge 25. The membrane material will deform after contacting the first anvil 9, and at this time, the membrane material can be irradiated.

[0028] Working principle: During use, loosen several screws 5 in sequence to remove the second clamping ring 7. After removal, place the membrane material between the first clamping ring 8 and the second clamping ring 7 and keep it in a taut state. Tighten the screw 5 in the threaded hole 31 to connect the second clamping ring 7 and the first clamping ring 8 together. At this time, after clamping the membrane material, rotate the first anvil 9, the second anvil 32, and the third anvil 33 to be used to the position of the inclined end of the arc-shaped rod 27. For example, for the first anvil 9, specifically, open the connecting motor 35 to drive the gear 34 to rotate. Since the gear 34 meshes with the T-shaped tooth ring 18, the ring 19 will start to rotate during the rotation of the gear 34. When the anvil to be used moves to the appropriate position, the connecting motor 35 is turned off at this time; The telescopic cylinder 3 is opened to drive the U-shaped connecting rod 22 to move. The movement of the U-shaped connecting rod 22 drives the two plugging plates 21 into the second sliding groove 29. At the same time, the plugging plates 21 move out of the first sliding groove 11, and the rotating block 10 is in a movable state. Turning on the transmission motor 26 can drive the rotating block 10 to rotate. When the two L-shaped connecting plates 12 move to the inclined end position of the arc-shaped rod 27, at this time, with the rotation of the rotating block 10, the L-shaped connecting plates 12 will move outward under the guidance of the arc-shaped rod 27. At the same time, the two cross-shaped clamping rods 13 will move along. At this time, the anvil entering the positioning groove 36 will not be clamped. When the rotating block 10 drives the T-shaped positioning column 15 to move to the position of the first anvil 9, when the connecting end of the first anvil 9 enters the positioning groove 36, the L-shaped connecting plates 12 will also disengage from the contact with the arc-shaped rod 27. At this time, under the elastic force of the second connecting spring 14, the cross-shaped clamping rods 13 will be clamped into the clamping through holes 30. At this time, with the rotation of the rotating block 10, the first anvil 9 will move along. When the first anvil 9 rotates to the upper side of the connecting seat 1, at this time, the rotating block 10 stops rotating. The telescopic cylinder 3 makes the two plugging plates 21 re-plug the storage cavity 20. At the same time, when the plugging plates 21 are plugging, they will also pass through the first sliding groove 11, plugging the storage cavity 20 and also limiting the rotating block 10. By adding a counterweight to the upper end of the storage box 6, the second clamping ring 7 and the first clamping ring 8 can drive the film material to move downward and contact the first anvil 9. After the film material contacts the first anvil 9, the corresponding force will be transmitted to the support spring 24. The magnitude of the loading force on the film material is measured by the pressure gauge 25. After the film material contacts the first anvil 9, it will deform. At this time, the film material can be irradiated. After the prestress applied by the first anvil 9 is irradiated with different doses, the change of the mechanical properties of the film material is observed and recorded; When it is necessary to store the first anvil 9 in the storage cavity 20 after use, or replace the second anvil 32 and the third anvil 33, at this time, the plugging of the storage cavity 20 by the plugging plates 21 is cancelled again. The rotating block 10 is controlled to rotate. When the L-shaped connecting plates 12 move to the position of the arc-shaped rod 27 again, the cross-shaped clamping rods 13 will disengage from the clamping through holes 30. At this time, the first anvil 9 will be limited and stored in the storage groove 17, while the second anvil 32 or the third anvil 33 will be taken out and used again. At the same time, the position of the ring 19 storing the anvil can also be rotated to the position of the arc-shaped rod 27, so that when the L-shaped connecting plates 12 disengage from the arc-shaped rod 27, no anvil will be clamped.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prestress loading and irradiation test device for a membrane material, comprising a connecting seat, characterized in that: A storage cavity is formed at the upper end of the connection base. A rotating block is movably connected in the storage cavity. Two first sliding grooves are formed on the outer side of the rotating block. A sliding connection cavity is formed inside the upper end of the rotating block. A clamping mechanism is arranged in the sliding connection cavity. A pressure gauge is fixedly installed at the lower end inside the sliding connection cavity. A top film mechanism is clamped in the clamping mechanism. After the top film mechanism contacts the film material, the film material is deformed. A sealing mechanism is arranged above the storage cavity to seal the storage cavity. A storage mechanism is arranged in the storage cavity to store the replaced top film mechanism. A film material installation mechanism is arranged at the upper end of the connection base to clamp the film material. A driving motor is fixedly connected inside the connection base. The output end of the driving motor is fixedly connected to the rotating block. Arc-shaped rods are arranged on both sides of the rotating block. The arc-shaped rods are fixedly connected in the storage cavity. One end of the arc-shaped rod is arranged in an inclined shape.

2. The prestress loading and irradiation test device for a membrane material according to claim 1, wherein: The clamping mechanism includes a T-shaped positioning column. The lower end of the T-shaped positioning column is slidably connected in the sliding connection cavity. A support spring is fixedly connected in the sliding connection cavity. The other end of the support spring is fixedly connected to the T-shaped positioning column. A positioning groove is formed at the upper end of the T-shaped positioning column.

3. A membrane material prestress loading and irradiation test device according to claim 2, characterized in that: Two cross-shaped clamping rods are movably connected inside both sides of the T-shaped positioning column. The opposite ends of the two cross-shaped clamping rods extend into the positioning groove. A second connecting spring is sleeved outside the cross-shaped clamping rod. One end of the second connecting spring is fixedly connected to the positioning groove, and the other end is fixedly connected to the cross-shaped clamping rod. The opposite ends of the two cross-shaped clamping rods are respectively fixedly connected to an L-shaped connecting plate.

4. A membrane material prestress loading and irradiation test device according to claim 3, characterized in that: The top film mechanism includes a first anvil, a second anvil, and a third anvil. Two clamping through holes are formed on the outer sides of the first anvil, the second anvil, and the third anvil. The cross-shaped clamping rod is clamped in the clamping through hole.

5. A membrane material prestress loading and irradiation test device according to claim 1, characterized in that: The sealing mechanism includes two sealing plates. The sealing plates are slidably connected in the second sliding groove. The second sliding groove is formed inside the connection base. Both sealing plates are fixedly connected to a U-shaped connecting rod. The U-shaped connecting rod is movably connected to the upper end of the connection base. A telescopic cylinder is fixedly connected to the upper end of the connection base. The output end of the telescopic cylinder is fixedly connected to the U-shaped connecting rod.

6. The prestress loading and irradiation test device for a membrane material according to claim 1, characterized in that: The storage mechanism includes a ring. The ring is arranged in the storage cavity. A T-shaped tooth ring is fixedly connected to the outer side of the ring. The T-shaped tooth ring is slidably connected in the T-shaped groove. The T-shaped groove is formed inside the connection base. A storage groove and several positioning magnets are formed at the upper end of the ring. The T-shaped tooth ring is fixedly connected to a gear. The T-shaped tooth ring is arranged inside the connection base. The gear is fixedly connected to the output end of a connection motor. The connection motor is fixedly connected inside the connection base.

7. A membrane material prestress loading and irradiation test device according to claim 1, characterized in that: The membrane material mounting mechanism includes a first clamping ring. A plurality of sliding rods are fixedly connected to the lower end of the first clamping ring. The sliding rods are slidably connected inside the upper end of the connecting seat. A first connecting spring is sleeved outside the sliding rods. One end of the first connecting spring is fixedly connected to the first clamping ring, and the other end is fixedly connected to the connecting seat. A second clamping ring is arranged above the first clamping ring. A plurality of screw rods are arranged at the upper end of the second clamping ring. A plurality of screw holes are arranged at the upper end of the first clamping ring. The screw rods are screwed into the screw holes. Storage boxes are fixedly connected to both sides of the first clamping ring.

8. A test method for the membrane material prestress loading and irradiation test device described in any one of claims 1-7 above, characterized in that, Comprising: S1. Clamp the membrane material between the first clamping ring and the second clamping ring and keep it in a taut state. Rotate the first anvil, the second anvil, and the third anvil to be used to the position of the inclined end of the arc-shaped rod. Open the telescopic cylinder so that the two sealing plates enter the second chute. Turn on the drive motor to drive the rotating block to rotate. When the two L-shaped connecting plates move to the position of the inclined end of the arc-shaped rod, the two cross-shaped clamping rods will move along; S2. After the connecting end of the first anvil enters the positioning groove, the L-shaped connecting plate will also disengage from the arc-shaped rod. The cross-shaped clamping rod will be clamped into the clamping through hole. As the rotating block rotates, the first anvil will move along. When the first anvil rotates to the upper side of the connecting seat, the rotating block stops rotating; S3. By adding a counterweight to the upper end of the storage box, the second clamping ring and the first clamping ring can drive the membrane material to move downward and contact the first anvil. After the membrane material contacts the first anvil, the corresponding force will be transmitted to the support spring. The magnitude of the loading force on the membrane material is measured by the pressure gauge. The membrane material will deform after contacting the first anvil, and at this time, the membrane material can be irradiated.

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