Shear bearing capacity testing device for fiber reinforced composite material

Abstract

The utility model relates to the technical field of shear bearing capacity testing devices, and discloses a shear bearing capacity testing device for a fiber reinforced composite material, which comprises a main frame, supporting legs are fixedly connected onto the main frame, a first fixing plate is arranged on one side of the main frame, a second fixing plate is arranged on one side of the main frame, a first threaded rod is arranged on the second fixing plate, and a second threaded rod is arranged on the second threaded rod. According to the utility model, the height of the hydraulic cylinder I is adjusted, and the threaded sleeve I and the threaded sleeve II are screwed to adjust the shear stress of the hydraulic cylinder I at different heights, so that a tester can set different shear stress levels according to actual requirements to simulate various shear conditions possibly encountered by materials in actual use; the test is closer to the actual working condition, the practicability and reliability of the test result are improved, and the test sample models of different fiber reinforced composite materials are tested, so that richer data support is provided for material research and development, structural design and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shearing bearing capacity testing device, especially to a kind of shearing bearing capacity testing device of fiber reinforced composite material. BACKGROUND

[0002] With the continuous progress of modern engineering technology, fiber reinforced composite material is widely used in the fields of construction, aerospace, automobile manufacturing and the like due to its high strength, high modulus, corrosion resistance and light weight and the like, however, these materials often face complex shear load conditions in practical application, so accurate evaluation of its shearing bearing capacity is particularly important.

[0003] The shearing bearing capacity testing device of fiber reinforced composite material still has the following defects when in use: when the sample model of fiber reinforced composite material is subjected to shear stress detection, the fixing of the sample model is unstable, thereby leading to inaccurate data of sample model shear stress detection. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a shearing bearing capacity testing device of fiber reinforced composite material.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a shearing bearing capacity testing device of fiber reinforced composite material, including main frame, the main frame is fixedly connected with support leg, one side of the main frame is equipped with fixed plate no.

[0006] Further description of the above technical scheme: the main frame is fixedly connected with bottom plate, one side of the bottom plate is fixedly connected with connecting block, the connecting block is equipped with threaded rod no.

[0007] As the further description of the above technical scheme: the bottom plate is fixedly connected with a supporting plate, the main frame is fixedly connected with a supporting frame, one side of the supporting frame is fixedly connected with a hydraulic cylinder two, the output end of the hydraulic cylinder two is fixedly connected with a fixed block, the bottom of the fixed block is slidably connected on the supporting plate, and one side of the fixed block is attached to one side of the sample model.

[0008] As the further description of the above technical scheme: the threaded rod one penetrates through the fixed plate one, and the threaded rod one penetrates through the fixed plate two.

[0009] As the further description of the above technical scheme: the threaded rod two penetrates through the connecting block, and the threaded rod two penetrates through the pressing plate.

[0010] As the further description of the above technical scheme: the pressing plate is provided with two groups, the pressing plate is arranged on the two sides of the sample model respectively, the threaded rod two is provided with four groups, and each two groups of threaded rods two are arranged on each group of pressing plates.

[0011] As the further description of the above technical scheme: the threaded rod one is provided with four groups, and the supporting leg is provided with four groups.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] 1. In the utility model, the height of the hydraulic cylinder one is adjusted, and the threaded sleeve one and the threaded sleeve two are screwed to adjust the shear stress of the hydraulic cylinder one at different heights. Test personnel can set different shear stress levels according to actual needs to simulate various shear conditions that materials may encounter in actual use. Not only does this make the test more close to actual working conditions, improve the practicality and reliability of the test results, but also test different fiber-reinforced composite sample models to provide more abundant data support for material research and development and structure design.

[0014] 2. In the utility model, two groups of pressing plates, threaded rods two, threaded sleeves three and threaded sleeves four are used to fix the sample model at multiple points, ensuring the position stability of the sample during the test process and avoiding test errors caused by sample shaking or deformation. In addition, the hydraulic cylinder two pushes the fixed block to slide on the supporting plate, and the main frame completes the axial clamping and fixing of the sample model, further enhancing the stability of the sample and making the distribution of shear stress more uniform, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides a kind of structure diagram of shear bearing capacity testing device of fiber-reinforced composite material Figure One ;

[0016] Figure 2The utility model provides a kind of shearing bearing capacity testing device of fiber reinforced composite material's structural diagram Figure Two .

[0017] Figure 3 The utility model provides a kind of shearing bearing capacity testing device of fiber reinforced composite material's structural diagram Figure Three .

[0018] Legend:

[0019] 1, main frame; 2, support leg; 3, fixed plate one; 4, fixed plate two; 5, threaded rod one; 6, threaded sleeve one; 7, threaded sleeve two; 8, hydraulic cylinder one; 9, push plate; 10, bottom plate; 11, connecting block; 12, threaded rod two; 13, threaded sleeve three; 14, pressing plate; 15, threaded sleeve four; 16, backing plate; 17, sample model; 18, supporting plate; 19, support frame; 20, hydraulic cylinder two; 21, fixed block. Specific embodiments

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Reference Figures 1-3 , the utility model provides an embodiment: a kind of shearing bearing capacity testing device of fiber reinforced composite material, including main frame 1, main frame 1 is fixedly connected with support leg 2, one side of main frame 1 is equipped with fixed plate one 3, one side of main frame 1 is equipped with fixed plate two 4, fixed plate two 4 is equipped with threaded rod one 5, one end of threaded rod one 5 is equipped in fixed plate one 3, one end of threaded rod one 5 is screw connected with threaded sleeve one 6, the other end of threaded rod one 5 is screw connected with threaded sleeve two 7, one side of fixed plate two 4 is fixedly connected with hydraulic cylinder one 8, the output end of hydraulic cylinder one 8 is fixedly connected with push plate 9, by adjusting the height of hydraulic cylinder one 8, and screwing threaded sleeve one 6 and threaded sleeve two 7 to adjust the shearing stress of hydraulic cylinder one 8 at different heights, tester can set different shearing stress level according to actual needs, to simulate the various shearing conditions that material can encounter in actual use, not only make the test more close to actual working condition, improve the practicality and reliability of test result, also by testing the sample model 17 of different fiber reinforced composite material, to provide more abundant data support for material research and development, structure design etc.

[0022] The main rack 1 is fixedly connected with the bottom plate 10, one side of the bottom plate 10 is fixedly connected with the connecting block 11, the connecting block 11 is provided with the threaded rod two 12, the threaded rod two 12 is provided with the pressing plate 14, one end of the threaded rod two 12 is threadedly connected with the threaded sleeve three 13, the other end of the threaded rod two 12 is threadedly connected with the threaded sleeve four 15, the bottom plate 10 is provided with the backing plate 16, the backing plate 16 is provided with the sample model 17, the pressing plate 14 is attached to the sample model 17, the push plate 9 is attached to one side of the sample model 17, the bottom plate 10 is fixedly connected with the supporting plate 18, the main rack 1 is fixedly connected with the support frame 19, one side of the support frame 19 is fixedly connected with the hydraulic cylinder two 20, the output end of the hydraulic cylinder two 20 is fixedly connected with the fixed block 21, the bottom of the fixed block 21 is slidably connected with the supporting plate 18, one side of the fixed block 21 is attached to one side of the sample model 17, the threaded rod one 5 penetrates through the fixed plate one 3, the threaded rod one 5 penetrates through the fixed plate two 4, the threaded rod two 12 penetrates through the connecting block 11, the threaded rod two 12 penetrates through the pressing plate 14, the pressing plate 14 is provided with two groups, the pressing plate 14 is respectively arranged on both sides of the sample model 17, the threaded rod two 12 is provided with four groups, every two groups of threaded rod two 12 are respectively arranged on each group of pressing plate 14, the threaded rod one 5 is provided with four groups, the supporting leg 2 is provided with four groups, through the utilization of two groups of pressing plate 14, threaded rod two 12, threaded sleeve three 13 and threaded sleeve four 15 and other components, the sample model 17 is fixed in multiple points, the position stability of the sample in the testing process is ensured, the testing error caused by the sample shaking or deformation is avoided, in addition, the hydraulic cylinder two 20 pushes the fixed block 21 to slide on the supporting plate 18, and the main rack 1 is used for the axial clamping and fixing of the sample model 17, the stability of the sample is further enhanced, the distribution of the shear stress is more uniform, and therefore the testing accuracy is improved.

[0023] Working principle: in use, first, the required sample model 17 is placed on the two sets of base plates 16, and one end of the sample model 17 is abutted against one side in the main frame 1, then the two sets of pressing plates 14 are placed on the two sides of the sample model 17, then the several sets of threaded rods two 12 are passed through the pressing plates 14 and the connecting blocks 11, then the threaded sleeve three 13 and the threaded sleeve four 15 are connected at the two ends of the threaded rods two 12 through threaded connection respectively to fix the sample model 17, then the hydraulic cylinder two 20 is started, the fixed block 21 is pushed by the hydraulic cylinder two 20 to slide on the supporting plate 18, and when the fixed block 21 is abutted against one side of the sample model 17, the main frame 1 is matched to complete the axial clamping and fixing of the sample model 17, thereby improving the stability of the sample model 17, then the hydraulic cylinder one 8 is moved to the required height according to the height required for detecting the shear stress of the sample model 17, then the fixed plate one 3 and the fixed plate two 4 are placed at the two ends of one side of the main frame 1 respectively, then the threaded rod one 5 is passed through the fixed plate one 3 and the fixed plate two 4, then the threaded sleeve one 6 and the threaded sleeve two 7 are connected at the two ends of the threaded rod one 5 through threaded connection to fix the fixed plate one 3 and the fixed plate two 4, then the hydraulic cylinder one 8 is started, the push plate 9 is pushed by the hydraulic cylinder one 8 to move, and the sample model 17 is provided with stable and controllable shear force along with the movement of the push plate 9, so that the shear stress distribution in the test process is more uniform, and the shear stress at different heights of the hydraulic cylinder one 8 can be adjusted by screwing the threaded sleeve one 6 and the threaded sleeve two 7, so that different shear stress levels can be set according to actual needs, and various shear conditions that the material may encounter in actual use are simulated, different fiber reinforced composite material sample models 17 are tested, and then appropriate fiber reinforced composite material is selected according to the actual engineering situation, so as to improve the stability and safety of the building structure.

[0024] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. A device for testing the shear bearing capacity of a fibre-reinforced composite material, comprising a main frame (1), characterised in that: The main frame (1) is fixedly connected with a support leg (2), one side of the main frame (1) is provided with a fixed plate one (3), one side of the main frame (1) is provided with a fixed plate two (4), the fixed plate two (4) is provided with a threaded rod one (5), one end of the threaded rod one (5) is arranged on the fixed plate one (3), one end of the threaded rod one (5) is threadedly connected with a threaded sleeve one (6), the other end of the threaded rod one (5) is threadedly connected with a threaded sleeve two (7), one side of the fixed plate two (4) is fixedly connected with a hydraulic cylinder one (8), the output end of the hydraulic cylinder one (8) is fixedly connected with a push plate (9).

2. The device for testing the shear capacity of a fiber reinforced composite material according to claim 1, wherein: The main frame (1) is fixedly connected with a bottom plate (10), one side of the bottom plate (10) is fixedly connected with a connecting block (11), the connecting block (11) is provided with a threaded rod two (12), the threaded rod two (12) is provided with a pressing plate (14), one end of the threaded rod two (12) is threadedly connected with a threaded sleeve three (13), the other end of the threaded rod two (12) is threadedly connected with a threaded sleeve four (15), the bottom plate (10) is provided with a backing plate (16), the backing plate (16) is provided with a sample model (17), the pressing plate (14) is attached to the sample model (17), and the push plate (9) is attached to one side of the sample model (17).

3. The apparatus for testing the shear capacity of a fiber reinforced composite material according to claim 2, wherein: The bottom plate (10) is fixedly connected with a supporting plate (18), the main frame (1) is fixedly connected with a supporting frame (19), one side of the supporting frame (19) is fixedly connected with a hydraulic cylinder two (20), the output end of the hydraulic cylinder two (20) is fixedly connected with a fixed block (21), the bottom of the fixed block (21) is slidably connected to the supporting plate (18), and one side of the fixed block (21) is attached to one side of the sample model (17).

4. The apparatus for testing the shear capacity of a fiber reinforced composite material according to claim 3, wherein: The threaded rod one (5) penetrates the fixed plate one (3), and the threaded rod one (5) penetrates the fixed plate two (4).

5. The apparatus for testing the shear capacity of a fiber reinforced composite material according to claim 4, wherein: The threaded rod two (12) penetrates the connecting block (11), and the threaded rod two (12) penetrates the pressing plate (14).

6. The apparatus for testing the shear capacity of a fiber reinforced composite material according to claim 5, wherein: The pressing plate (14) is provided with two groups, and the pressing plate (14) is arranged on both sides of the sample model (17), respectively.

7. The apparatus for testing the shear capacity of a fiber reinforced composite material according to claim 6, wherein: The threaded rod one (5) is provided with four groups, and the support leg (2) is provided with four groups.

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