Device and method for testing fatigue performance of material in high-pressure and high-humidity environment

Abstract

The invention discloses a material fatigue performance test device in a high-pressure and high-humidity environment, and relates to the technical field of material fatigue performance tests.The material fatigue performance test device comprises an L-shaped ring, an annular groove is formed in the L-shaped ring, an annular block sleeves the edge of the outer side of the L-shaped ring, four sliding blocks are fixedly connected to the bottom of the annular block, the sliding blocks are movably connected into the annular groove, and the sliding blocks are fixedly connected to the bottom of the L-shaped ring. A plurality of storage grooves are formed in an inner cavity of the annular block, two connecting cylinders are arranged at the center of the L-shaped ring, through mutual cooperation of the annular block, the L-shaped ring, the connecting cylinders, the first hooks and other structures, materials can be placed in the annular block, and when the materials need to be taken, the annular block is rotated, so that the materials can be taken conveniently. The annular block drives the sliding block to rotate at the position of the L-shaped ring, materials are placed in the position of the round pipe and the position of the second hook, the upper connecting cylinder is driven by the crane to move, the upper connecting cylinder and the lower connecting cylinder are connected, and therefore the follow-up material testing is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of material fatigue performance testing, and in particular to a material fatigue performance testing device and method under a high-pressure and high-humidity environment. Background Art

[0002] When a new material is developed, it often requires relevant mechanical property testing. Fatigue performance is a crucial performance parameter. During the material selection process, engineering designers often need to first understand the material's performance parameters to ensure it meets the project's strength and service life requirements. Therefore, fatigue strength testing of selected materials is often necessary before designing large structural components.

[0003] However, there are some problems in the use of existing material fatigue performance testing equipment. The existing material fatigue performance testing equipment is not convenient for storing multiple materials during use, and it is not convenient for performing fatigue performance tests on multiple materials at the same time, which will reduce the working efficiency of the device. At the same time, it is not convenient to perform fatigue performance tests on materials under high pressure and high humidity environments, and it is not convenient to store and record the materials after testing. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a material fatigue performance testing device and method under high pressure and high humidity environment.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a material fatigue performance testing device under high pressure and high humidity environment, comprising an L-shaped ring, an annular groove being provided on the L-shaped ring, an annular block being sleeved on the outer edge of the L-shaped ring, four sliders being fixedly connected to the bottom of the annular block, the sliders being movably connected in the annular groove, a plurality of receiving grooves being provided in the inner cavity of the annular block, two connecting tubes being provided at the center of the L-shaped ring, the two connecting tubes being arranged up and down, an elastic ring being fixedly connected on one side corresponding to the two connecting tubes, a flange being fixedly connected on the outer edge of the elastic ring, a plurality of first threaded holes being provided on the flange, bolts being threadedly connected to the inner cavities of two adjacent first threaded holes, and an adjustment mechanism being provided in the inner cavities of the two connecting tubes.

[0006] Preferably, the adjusting mechanism includes two motors, and the two motors are arranged up and down, and the side of the motor away from the flange is fixedly connected to the adjacent side wall of the connecting cylinder inner cavity, and the side of the connecting cylinder inner cavity away from the flange is fixedly connected to an adjusting ring, and the motor power output shaft is fixedly connected to a transmission rod, and one end of the transmission rod away from the motor passes through the adjacent adjusting ring, and the one end of the transmission rod away from the motor is fixedly connected to a cross rod, a limiting ring is provided at the center of the inner cavity of the connecting cylinder, and the outer edge of the limiting ring is fixedly connected to a connecting rod, and one end of the connecting rod away from the limiting ring is fixedly connected to the adjacent side wall of the inner cavity of the connecting cylinder, and the inner cavity of the limiting ring is passed through a vertical rod, and the vertical rod and the end of the vertical rod close to the motor are provided with a cross slot, the cross rod is located in the adjacent cross slot inner cavity, and the end of the vertical rod away from the motor is fixedly connected to a cross plate.

[0007] Preferably, the side of the cross plate away from the motor is fixedly connected to four round tubes, the outer edge of the round tube is provided with four second threaded holes, the second threaded holes are threadedly connected to threaded rods, and the end of the threaded rod close to the center of the round tube is plugged with a splint.

[0008] Preferably, four second hooks are fixedly connected to one side of the cross plate away from the motor, and a connecting ring is fixedly connected to one side of the outer edge of the vertical rod close to the motor.

[0009] Preferably, four through grooves are provided on the outer edges of the connecting tubes, and the outer edges of the connecting tubes are fixedly connected with high-pressure and high-humidity devices.

[0010] Preferably, four L-shaped rods are fixedly connected to the outer edges of the connecting tube, and one end of the four L-shaped rods away from the connecting tube is commonly fixedly connected to a support ring.

[0011] Preferably, a fixing ring is fixedly connected to the side of the outer edge of the connecting tube away from the flange, and three first hooks are fixedly connected to the outer edge of the fixing ring.

[0012] The method for testing material fatigue performance equipment under high pressure and high humidity environment comprises the following steps: S1: When the device starts working, the annular block is rotated, which drives the slider to rotate. The slider rotates at the L-shaped ring. Different materials are placed in the storage groove on the annular block. The operator takes the material out of the storage groove and places the cylindrical or rectangular material into the circular tube inside the lower connecting cylinder. The lower threaded rod is rotated, which drives the clamping plate to move, and the clamping plate clamps the cylindrical or rectangular material. S2: Then hang one end of the crane on the first hook at the outer edge of the upper connecting tube, and place the upper connecting tube on the top of the lower connecting tube with the crane, so that the top of the cylindrical or rectangular material contacts the inside of the upper circular tube, and adjust the elastic ring. The operator can conveniently rotate the threaded rod at the upper circular tube, and rotate the upper threaded rod. The upper threaded rod drives the upper clamping plate to move, and the upper clamping plate clamps the top of the cylindrical or rectangular material. When it is necessary to limit the rope-like material, tie the two ends of the rope-like material to the second hook inside the connecting tube respectively; S3: After the materials are fixed, the two flanges are fitted together and limited by bolts. The high-pressure and high-humidity device is started to apply high pressure and high humidity to the inside of the two connecting tubes. S4: Then, the upper and lower motors are started, the upper motor rotates forward, and the lower motor rotates counterclockwise. The motors drive the transmission rod to rotate, the transmission rod drives the cross rod to rotate, the cross rod drives the vertical rod to rotate, the vertical rod drives the cross plate to rotate, the cross plate drives the round tube and the second hook to rotate, the upper round tube and the upper second hook rotate forward, and the lower round tube and the lower second hook rotate counterclockwise, thereby performing a torsional fatigue test on the material; S5: After finishing the work, remove the bolts from the flange, rotate the threaded rod at the upper round tube, release the upper restriction of the material, and untie the material at the second hook above. Move the upper connecting tube out by crane, and the operator can take out the material at the lower connecting tube and put it into the storage groove at the annular block, which is convenient for further research and recording of the twisted material.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention can place materials inside the annular block through the mutual cooperation between the annular block, the L-shaped ring, the connecting tube, the first hook and other structures. When the materials need to be taken out, the annular block is rotated, and the annular block drives the slider to rotate at the L-shaped ring. The materials are placed in the round tube and the second hook respectively. The upper connecting tube is driven by the crane to move and the upper and lower connecting tubes are connected, thereby facilitating subsequent testing of the materials. Through the mutual cooperation between the motor, round tube, high-pressure and high-humidity device, the second hook and other structures, the cylindrical or rectangular material can be clamped by the threaded rod and the clamping plate, and the rope-like material can be tied to the second hook. The upper motor rotates forward and the lower motor rotates reversely, thereby performing a torsional fatigue test on the material. After the test, the material is placed inside the annular block to facilitate subsequent observation and recording of the fatigue performance test of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the present invention; Figure 2 It is an exploded view of the present invention; Figure 3 This is a bottom view of the annular block component of the present invention; Figure 4 This is an exploded view of the connecting tube component of the present invention; Figure 5 This is a schematic diagram of the motor structure of the component of the present invention; Figure 6 This is a schematic diagram of the first hook structure of the component of the present invention; Figure 7 This is a schematic diagram of the second hook structure of the component of the present invention; Figure 8 This is a schematic diagram of the vertical rod structure of the component of the present invention; Figure 9 This is a cross-sectional view of the connecting tube of the component of the present invention; Figure 10 This is an exploded view of the elastic ring component of the present invention.

[0015] Numbers in the figure: 1. L-shaped ring; 2. Ring block; 3. Support ring; 4. L-shaped rod; 5. High-pressure and high-humidity device; 6. Slider; 7. Flange; 8. Bolt; 9. Motor; 10. Transmission rod; 11. Cross rod; 12. Connecting tube; 13. Fixed ring; 14. First hook; 15. Cross plate; 16. Vertical rod; 17. Connecting ring; 18. Round tube; 19. Second hook; 20. Threaded rod; 21. Clamp; 22. Connecting rod; 23. Limiting ring; 24. Adjusting ring; 25. Elastic ring; 26. Cross groove; 27. Annular groove; 28. First threaded hole; 29. ​​Receiving groove; 30. Through groove; 31. Second threaded hole. DETAILED DESCRIPTION

[0016] See also Figure 1-10 , the present invention provides a technical solution: Example 1: A material fatigue performance testing device under a high-pressure and high-humidity environment comprises an L-shaped ring 1, an annular groove 27 is provided on the L-shaped ring 1, an annular block 2 is sleeved on the outer edge of the L-shaped ring 1, four sliders 6 are fixedly connected to the bottom of the annular block 2, the sliders 6 are movably connected in the annular groove 27, a plurality of receiving grooves 29 are provided in the inner cavity of the annular block 2, two connecting tubes 12 are provided at the center of the L-shaped ring 1, the two connecting tubes 12 are arranged up and down, and the corresponding sides of the two connecting tubes 12 are fixedly connected to elastic rings 25, the outer edges of the elastic rings 25 are fixedly connected to flanges 7, a plurality of first threaded holes 28 are provided on the flanges 7, the inner cavities of two adjacent first threaded holes 28 are commonly threadedly connected to bolts 8, the inner cavities of the two connecting tubes 12 are commonly provided with an adjusting mechanism, the outer edges of the connecting tubes 12 are fixedly connected to four L-shaped rods 4, and the ends of the four L-shaped rods 4 away from the connecting tubes 12 are commonly fixedly connected to a support ring 3; Place the material inside the annular block 2. When the material needs to be taken, rotate the annular block 2. The annular block 2 drives the slider 6 to rotate at the L-shaped ring 1. Place the material into the round tube 18 and the second hook 19 respectively, and use the crane to drive the upper connecting tube 12 to move and connect the upper and lower connecting tubes 12, so as to facilitate subsequent testing of the material.

[0017] Example 2: The adjusting mechanism includes two motors 9, which are arranged up and down. The side of the motor 9 away from the flange 7 is fixedly connected to the inner cavity side wall of the adjacent connecting cylinder 12. The inner cavity of the connecting cylinder 12 away from the flange 7 is fixedly connected with an adjusting ring 24. The power output shaft of the motor 9 is fixedly connected to the transmission rod 10. The end of the transmission rod 10 away from the motor 9 passes through the adjacent adjusting ring 24. The end of the transmission rod 10 away from the motor 9 is fixedly connected to a cross rod 11. A limiting ring 23 is provided at the center of the inner cavity of the connecting cylinder 12. The outer edge of the limiting ring 23 is fixedly connected to a connecting rod 22. The end of the connecting rod 22 away from the limiting ring 23 is fixedly connected to the inner cavity side wall of the adjacent connecting cylinder 12. The inner cavity of the limiting ring 23 is penetrated by a vertical rod 16. The vertical rod 16 and the end of the vertical rod 16 close to the motor 9 are each provided with a cross slot 26. The cross rod 11 is located in the inner cavity of the adjacent cross slot 26, and the end of the vertical rod 16 away from the motor 9 is fixedly connected with a cross plate 15. The side of the cross plate 15 away from the motor 9 is fixedly connected to four round tubes 18, and four second threaded holes 31 are provided on the outer edge of the round tube 18. The threaded rods 20 are threadedly connected in the second threaded holes 31, and the ends of the threaded rods 20 close to the center of the round tube 18 are plugged with plywood 21. The side of the cross plate 15 away from the motor 9 is fixedly connected to four second hooks 19, and the side of the outer edge of the vertical rod 16 close to the motor 9 is fixedly connected to the connecting ring 17. Four through grooves 30 are provided on the outer edge of the connecting tube 12. The outer edge of the connecting tube 12 is fixedly connected to the high-pressure and high-humidity device 5. The side of the outer edge of the connecting tube 12 away from the flange 7 is fixedly connected to the fixing ring 13, and the outer edge of the fixing ring 13 is fixedly connected to the three first hooks 14; The cylindrical or rectangular material is clamped by the threaded rod 20 and the clamping plate 21, and the rope-like material is tied to the second hook 19. The upper motor 9 rotates forward and the lower motor 9 rotates reversely, so as to perform a torsional fatigue test on the material. After the test, the material is placed inside the annular block 2 to facilitate subsequent observation and recording of the fatigue performance test of the material.

[0018] The method for testing material fatigue performance equipment under high pressure and high humidity environment comprises the following steps: S1: When the device starts working, the annular block 2 is rotated, and the annular block 2 drives the slider 6 to rotate. The slider 6 rotates at the L-shaped ring 1. Different materials are placed in the storage groove 29 on the annular block 2. The operator takes the material out of the storage groove 29 and places the cylindrical or rectangular material into the circular tube 18 inside the lower connecting tube 12. The lower threaded rod 20 is rotated, and the lower threaded rod 20 drives the clamping plate 21 to move. The clamping plate 21 clamps the cylindrical or rectangular material; S2: Then hang one end of the crane on the first hook 14 on the outer edge of the upper connecting tube 12, and place the upper connecting tube 12 on the top of the lower connecting tube 12 with the crane, so that the top of the cylindrical or rectangular material contacts the inside of the upper circular tube 18, and adjust the elastic ring 25. The operator conveniently rotates the threaded rod 20 on the upper circular tube 18, and rotates the upper threaded rod 20. The upper threaded rod 20 drives the upper clamping plate 21 to move, and the upper clamping plate 21 clamps the top of the cylindrical or rectangular material. When it is necessary to limit the position of the rope-like material, tie the two ends of the rope-like material to the second hooks 19 inside the connecting tube 12 respectively; S3: After the material is fixed, the two flanges 7 are fitted together and limited by bolts 8, and the high-pressure and high-humidity device 5 is started to apply high pressure and high humidity to the inside of the two connecting tubes 12; S4: Then, the upper and lower motors 9 are started, the upper motor 9 rotates forward, and the lower motor 9 rotates reversely, the motor 9 drives the transmission rod 10 to rotate, the transmission rod 10 drives the cross rod 11 to rotate, the cross rod 11 drives the vertical rod 16 to rotate, the vertical rod 16 drives the cross plate 15 to rotate, the cross plate 15 drives the round tube 18 and the second hook 19 to rotate, the upper round tube 18 and the upper second hook 19 rotate forward, and the lower round tube 18 and the lower second hook 19 rotate reversely, thereby performing a torsional fatigue test on the material; S5: After finishing the work, take out the bolt 8 from the flange 7, and rotate the threaded rod 20 at the upper circular tube 18 to release the upper restriction of the material, and untie the material at the upper second hook 19, and move the upper connecting tube 12 out by crane. The operator can then take out the material at the lower connecting tube 12 and put it into the storage groove 29 at the annular block 2, which is convenient for subsequent further research and recording of the twisted material.

[0019] Working principle: When the device starts working, the annular block 2 is rotated, and the annular block 2 drives the slider 6 to rotate. The slider 6 rotates at the L-shaped ring 1. Different materials are placed in the storage groove 29 on the annular block 2. The operator takes the material out of the storage groove 29 and places the cylindrical or rectangular material into the circular tube 18 inside the lower connecting tube 12. The lower threaded rod 20 is rotated, and the lower threaded rod 20 drives the clamping plate 21 to move. The clamping plate 21 clamps the cylindrical or rectangular material; Then hang one end of the crane on the first hook 14 on the outer edge of the upper connecting tube 12, and the crane places the upper connecting tube 12 on the top of the lower connecting tube 12, so that the top of the cylindrical or rectangular material contacts the inside of the upper circular tube 18, and adjusts the elastic ring 25. The operator can conveniently rotate the threaded rod 20 at the upper circular tube 18, and rotate the upper threaded rod 20. The upper threaded rod 20 drives the upper clamping plate 21 to move, and the upper clamping plate 21 clamps the top of the cylindrical or rectangular material. When it is necessary to limit the rope-like material, tie the two ends of the rope-like material to the second hook 19 inside the connecting tube 12 respectively. When the material is fixed, fit the two flanges 7 together. , and limit the two flanges 7 by bolts 8, and start the high-pressure and high-humidity device 5, which applies high pressure and high humidity environment to the inside of the two connecting tubes 12, and then start the upper and lower motors 9, the upper motor 9 rotates forward, and the lower motor 9 rotates reversely, the motor 9 drives the transmission rod 10 to rotate, the transmission rod 10 drives the cross rod 11 to rotate, the cross rod 11 drives the vertical rod 16 to rotate, the vertical rod 16 drives the cross plate 15 to rotate, the cross plate 15 drives the round tube 18 and the second hook 19 to rotate, the upper round tube 18 and the upper second hook 19 rotate forward, and the lower round tube 18 and the lower second hook 19 rotate reversely, thereby performing a torsional fatigue test on the material; After finishing the work, take out the bolt 8 from the flange 7, and rotate the threaded rod 20 at the upper circular tube 18 to release the upper restriction of the material, and untie the material at the upper second hook 19. Move the upper connecting tube 12 out by crane, and the operator can take out the material at the lower connecting tube 12 and put it into the storage groove 29 at the annular block 2, so as to facilitate further research and recording of the twisted material.

Claims

1. A material fatigue performance testing device under high pressure and high humidity environment, comprising an L-shaped ring (1), characterized in that: The L-shaped ring (1) is provided with an annular groove (27), the outer edge of the L-shaped ring (1) is sleeved with an annular block (2), the bottom of the annular block (2) is fixedly connected with four sliders (6), the sliders (6) are movably connected in the annular groove (27), the inner cavity of the annular block (2) is provided with a plurality of receiving grooves (29), two connecting tubes (12) are provided at the center of the L-shaped ring (1), the two connecting tubes (12) are arranged up and down, the corresponding sides of the two connecting tubes (12) are fixedly connected with elastic rings (25), the outer edges of the elastic rings (25) are fixedly connected with flanges (7), the flanges (7) are provided with a plurality of first threaded holes (28), the inner cavities of two adjacent first threaded holes (28) are commonly threadedly connected with bolts (8), and the inner cavities of the two connecting tubes (12) are commonly provided with an adjustment mechanism.

2. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: The regulating mechanism comprises two motors (9), the two motors (9) are arranged up and down, the side of the motor (9) away from the flange (7) is fixedly connected to the side wall of the inner cavity of the adjacent connecting tube (12), the side of the inner cavity of the connecting tube (12) away from the flange (7) is fixedly connected to the regulating ring (24), the power output shaft of the motor (9) is fixedly connected to the transmission rod (10), the end of the transmission rod (10) away from the motor (9) passes through the adjacent regulating ring (24), the end of the transmission rod (10) away from the motor (9) is fixedly connected to the cross rod (11), the connecting tube (12 ) is provided with a limiting ring (23) at the center of the inner cavity, and the outer edge of the limiting ring (23) is fixedly connected to a connecting rod (22), and the end of the connecting rod (22) away from the limiting ring (23) is fixedly connected to the side wall of the inner cavity of the adjacent connecting tube (12), and the inner cavity of the limiting ring (23) is penetrated by a vertical rod (16), and the end of the vertical rod (16) close to the motor (9) is provided with a cross groove (26), and the cross rod (11) is located in the inner cavity of the adjacent cross groove (26), and the end of the vertical rod (16) away from the motor (9) is fixedly connected to a cross plate (15).

3. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: The cross plate (15) is fixedly connected to four round tubes (18) on one side away from the motor (9), and four second threaded holes (31) are provided on the outer edges of the round tubes (18). Threaded rods (20) are threadedly connected in the second threaded holes (31), and a clamping plate (21) is inserted into one end of the threaded rod (20) near the center of the round tube (18).

4. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: Four second hooks (19) are fixedly connected to the side of the cross plate (15) away from the motor (9), and a connecting ring (17) is fixedly connected to the side of the outer edge of the vertical rod (16) close to the motor (9).

5. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: Four through slots (30) are provided on the outer edges of the connecting tubes (12), and the outer edges of the connecting tubes (12) are fixedly connected to high-pressure and high-humidity devices (5).

6. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: Four L-shaped rods (4) are fixedly connected to the outer edges of the connecting cylinder (12), and one end of the four L-shaped rods (4) away from the connecting cylinder (12) is fixedly connected to a support ring (3).

7. The material fatigue performance testing equipment under high pressure and high humidity environment according to claim 1, characterized in that: A fixing ring (13) is fixedly connected to the side of the outer edge of the connecting tube (12) away from the flange (7), and three first hooks (14) are fixedly connected to the outer edge of the fixing ring (13).

8. The method for testing material fatigue performance under high pressure and high humidity environment according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: When the device starts working, the annular block (2) is rotated, and the annular block (2) drives the slider (6) to rotate. The slider (6) rotates at the L-shaped ring (1). Different materials are placed in the receiving groove (29) on the annular block (2). The operator takes out the material from the receiving groove (29) and places the cylindrical or rectangular material into the circular tube (18) inside the lower connecting tube (12). The lower threaded rod (20) is rotated, and the lower threaded rod (20) drives the clamping plate (21) to move. The clamping plate (21) clamps the cylindrical or rectangular material. S2: Then, one end of the crane is hung on the first hook (14) at the outer edge of the upper connecting tube (12), and the crane places the upper connecting tube (12) on the top of the lower connecting tube (12), so that the top of the cylindrical or rectangular material contacts the inside of the upper circular tube (18), and the elastic ring (25) is adjusted. The operator conveniently rotates the threaded rod (20) at the upper circular tube (18), rotates the upper threaded rod (20), and the upper threaded rod (20) drives the upper clamping plate (21) to move. The upper clamping plate (21) clamps the top of the cylindrical or rectangular material. When it is necessary to limit the position of the string-like material, the two ends of the string-like material are respectively tied to the second hook (19) inside the connecting tube (12); S3: After the material is fixed, the two flanges (7) are fitted together, and the two flanges (7) are limited by bolts (8), and the high-pressure and high-humidity device (5) is started, and the high-pressure and high-humidity device (5) applies a high-pressure and high-humidity environment to the inside of the two connecting tubes (12); S4: Then, the upper and lower motors (9) are started, the upper motor (9) rotates forward, and the lower motor (9) rotates reversely, the motor (9) drives the transmission rod (10) to rotate, the transmission rod (10) drives the cross rod (11) to rotate, the cross rod (11) drives the vertical rod (16) to rotate, the vertical rod (16) drives the cross plate (15) to rotate, the cross plate (15) drives the round tube (18) and the second hook (19) to rotate, the upper round tube (18) and the upper second hook (19) rotate forward, and the lower round tube (18) and the lower second hook (19) rotate reversely, thereby performing a torsional fatigue test on the material; S5: After finishing the work, take out the bolt (8) from the flange (7), and rotate the threaded rod (20) at the upper circular tube (18) to release the upper restriction of the material, and untie the material at the upper second hook (19). Move the upper connecting tube (12) out by crane, and the operator can take out the material at the lower connecting tube (12) and put it into the storage groove (29) at the annular block (2), so as to facilitate further research and recording of the twisted material.

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