A high-efficiency full-automatic single shear test system

Abstract

The utility model discloses a kind of high-efficiency full-automatic single shear test system, including test cabinet, test cabinet upper end is connected with test table, test table upper end is connected with control screen, test table upper side is provided with sliding block, sliding block upper end is connected with pad block, pad block upper end is connected with shear base, test table upper end is connected with vertical rod and fixed base, vertical rod is connected with connecting frame, connecting frame is connected with vertical loading mechanism, fixed base is connected with horizontal loading mechanism, sliding block side is provided with with to the positioning mechanism of the fixed sliding block structure, test table upper end is connected with fixed plate, fixed plate is connected with inclined strut.The utility model can realize the positioning of sliding block structure by screw hole, at this time vertical loading mechanism operation can just fix shear base, sliding rail is also set to improve the stability of shear base movement, the placement of test and soil structure is facilitated by the movement of shear base, improve detection accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of civil engineering, and in particular to a highly efficient fully automatic single shear test system. Background Technology

[0002] The single shear test system is a high-precision testing device for geotechnical engineering. It can determine the shear strength parameters of the contact surface of soil structures. It features modular biaxial loading and triaxial stress isolation design, supports testing of various specimens, and automatically generates reports through high-frequency data acquisition and intelligent analysis. With high overall accuracy, it provides reliable data support for engineering design.

[0003] When a single shear test is required on soil, the shear base on which the soil is placed needs to be placed on the testing equipment. The shear base is then pressed down and fixed by the pressure structure. Subsequently, the shear base is tested by the horizontal shear structure. Since the shear base needs to be accurately positioned before the test, and traditional testing systems do not have a positioning auxiliary structure, the shear base needs to be manually adjusted continuously during the pressure and fixing process. Moving the shear base back and forth horizontally is time-consuming, and the operation and fixing in conjunction with the pressure structure can easily cause safety accidents.

[0004] Based on this, a highly efficient, fully automated single-shear testing system is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a highly efficient, fully automatic single-shear testing system to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A highly efficient, fully automatic single-shear testing system includes a testing cabinet, a testing platform connected to the upper end of the testing cabinet, a control panel connected to the upper end of the testing platform, a slider disposed above the testing platform, a pad connected to the upper end of the slider, a shearing base connected to the upper end of the pad, a vertical rod and a fixed seat connected to the upper end of the testing platform, a connecting frame connected to the vertical rod, a vertical loading mechanism connected to the connecting frame, a horizontal loading mechanism connected to the fixed seat, and a positioning mechanism for fixing the slider structure disposed on one side of the slider.

[0007] Preferably, a fixing plate is connected to the upper end of the test platform, and a diagonal brace is connected to the fixing plate. The upper end of the diagonal brace is connected to a vertical rod.

[0008] Preferably, the positioning mechanism includes a slide rail, one end of which is rotatably connected to a fixed plate, and the slider is slidably connected to the slide rail. The slide rail has a screw hole, and the slider is connected to the screw hole by a screw.

[0009] Preferably, a deflection shaft is connected to the fixed plate, and one end of the slide rail is rotatably connected to the deflection shaft.

[0010] Preferably, a rod is connected to the slide rail and the slider.

[0011] Preferably, a limiting groove is provided on the test platform, a groove block is provided on the limiting groove, a limiting post is connected to the insertion rod, the limiting post is slidably connected to the groove block, and a lever is connected to the groove block.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This application adopts a screw hole structure, which can be used to position the slider structure. At this time, the vertical loading mechanism can fix the shear base. At the same time, the slide rail can also improve the stability of the shear base movement. The movement of the shear base facilitates the placement of the test and soil structure, and improves the detection accuracy.

[0013] 2. This application adopts a deflection shaft structure, which allows the slide rail to deflect. Therefore, after the test is completed, the shear base can be quickly inverted by flipping the slide rail, making it easy to clean the soil structure inside the shear base. This allows for rapid testing of the next batch of soil structures, improving testing efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the testing system provided according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the screw connection provided according to an embodiment of the present invention is shown; Figure 3 An exploded structural diagram of the slot block connection provided according to an embodiment of the present invention is shown; Figure 4 The present invention provides an embodiment of the present invention. Figure 3 A magnified structural diagram of point A in the middle.

[0015] Legend: 1. Test cabinet; 2. Test bench; 3. Control panel; 4. Fixing plate; 5. Diagonal brace; 6. Slide rail; 7. Slider; 8. Pad; 9. Shear base; 10. Vertical rod; 11. Connecting frame; 12. Fixing seat; 13. Horizontal loading mechanism; 14. Vertical loading mechanism; 15. Deflection shaft; 16. Screw; 17. Screw hole; 18. Insert rod; 19. Limiting post; 20. Limiting groove; 21. Groove block; 22. Lever. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a technical solution: A highly efficient, fully automated single-shear testing system includes a test cabinet 1, a test platform 2 connected to the upper end of the test cabinet 1, and a control screen 3 connected to the upper end of the test platform 2. The touch control screen 3 supports dual control with a remote computer. Users can start and stop the test process with one click through the graphical interface, or customize complex loading spectra. The built-in algorithm automatically fits the Coulomb strength criterion, calculates the cohesion (c) and internal friction angle (φ), and generates visualization charts such as stress-strain curves and failure envelopes. The system supports exporting data to MATLAB or Excel for in-depth analysis.

[0018] A slider 7 is installed above the test platform 2. A pad 8 is connected to the upper end of the slider 7, and a shear base 9 is connected to the upper end of the pad 8. The shear base 9 is an adaptive sample container made of alloy material. It is equipped with an adjustable limiting mechanism inside, which supports the quick clamping and centering of samples of various sizes to ensure the uniformity of stress distribution. The shear base 9 is a direct reference to existing technology. A vertical rod 10 and a fixed seat 12 are connected to the upper end of the test platform 2. A connecting frame 11 is connected to the vertical rod 10, and a vertical loading mechanism 14 is connected to the connecting frame 11. A horizontal loading mechanism 13 is connected to the fixed seat 12. The system adopts a vertical and horizontal dual-axis loading structure and uses a high-precision servo motor and ball screw drive to realize independent or coupled loading of static load in the vertical direction and dynamic shear force in the horizontal direction. Compared with the traditional hydraulic system, the screw drive has higher displacement resolution and long-term stability, which can meet the stringent requirements of international standards such as ISO 17892-10 for shear rate and loading accuracy. A positioning mechanism is provided on one side of the slider 7 to fix the structure of the slider 7.

[0019] The upper pressure measurement system, consisting of a vertical loading mechanism 14, integrates a force sensor, a guide bearing, and a diagonal brace 5. Through mechanical optimization, the sensor bears only the vertical load, effectively isolating lateral stress interference.

[0020] The sensor inside the horizontal loading mechanism 13 is equipped with a high-sensitivity strain gauge and digital filtering technology, which can monitor parameters such as shear displacement, normal stress, and shear stress in real time, with a sampling frequency of up to 1kHz, to ensure accurate capture of transient mechanical behavior.

[0021] Specifically, such as Figure 1As shown, a fixed plate 4 is connected to the upper end of the test bench 2, and a diagonal brace 5 is connected to the fixed plate 4. The upper end of the diagonal brace 5 is connected to the vertical rod 10. The diagonal brace 5 adopts the principle of triangular truss to convert the lateral moment into axial pressure, which greatly improves the system's resistance to eccentric load.

[0022] Specifically, such as Figure 1 and Figure 2 As shown, the positioning mechanism includes a slide rail 6, one end of which is rotatably connected to a fixed plate 4, and a slider 7 is slidably connected to the slide rail 6. A screw hole 17 is provided on the slide rail 6, and the slider 7 is connected to the screw hole 17 by a screw 16. By setting the slide rail 6, it is convenient to move the shear base 9 and improve the ease of assembling the soil structure.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, a deflection shaft 15 is connected to the fixed plate 4, and one end of the slide rail 6 is rotatably connected to the deflection shaft 15. The deflection shaft 15 can limit the structure of the slide rail 6, thereby improving the structural stability of the slide rail 6 when placed on the test bench 2.

[0024] Specifically, such as Figure 4 As shown, a plug rod 18 is connected to the slide rail 6 and the slider 7. By setting the plug rod 18, the connection between the slide rail 6 and the slider 7 can be further ensured.

[0025] Specifically, such as Figure 4 As shown, a limiting groove 20 is provided on the test bench 2, and a groove block 21 is provided on the limiting groove 20. A limiting post 19 is connected to the insertion rod 18, and the limiting post 19 is slidably connected to the groove block 21. A lever 22 is connected to the groove block 21. The limiting groove 20 is used to limit the structure of the groove block 21, and the groove block 21 is used to limit the structure of the insertion rod 18 to prevent horizontal movement of the insertion rod 18 when it is connected.

[0026] In summary, the efficient fully automatic single-shear testing system provided in this embodiment is suitable for testing various materials such as clay, sand, and improved soil. When testing is required, the soil structure is placed in the shear base 9, and then the slider 7 structure is slid on the slide rail 6. The slider 7 is fixed to the slide rail 6 using the screw 16 structure. The plug rod 18 is inserted into the slider 7 to connect the slider 7 and the slide rail 6. Then, the limiting post 19 structure is moved to place the groove block 21 in the limiting groove 20, ensuring that the limiting post 19 is connected to the groove block 21.

[0027] Then, a cover plate is placed on the upper end of the shear base 9, and then the vertical loading mechanism 14 is controlled to operate, thereby pressing the cover plate onto the shear base 9. At this time, the horizontal loading mechanism 13 is started, and the horizontal loading mechanism 13 is used to complete the shearing of the soil structure inside the shear base 9. The test data is detected and recorded by the sensor inside the horizontal loading mechanism 13.

[0028] After shearing is completed, the horizontal loading mechanism 13 and the vertical loading mechanism 14 are reset, and then the slide rail 6 is flipped so that the shearing base 9 is flipped upside down, allowing the tester to easily clean the shearing base 9.

[0029] This system is a high-precision testing device for the field of civil engineering, specifically designed to determine the shear strength parameters (such as cohesion and internal friction angle) of soil structure contact surfaces. It provides crucial data support for slope stability analysis, foundation bearing capacity assessment, and underground engineering support design. By simulating actual working conditions, the system applies controllable vertical pressure and shear stress to the top and bottom of the sample, accurately capturing the entire process from elastic deformation to shear failure. Combined with data models, it inverts the soil's mechanical properties, providing a scientific basis for engineering design and construction optimization.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency fully automatic single-shear testing system, comprising a testing cabinet (1), characterized in that, The test cabinet (1) is connected to a test platform (2) at the top. The test platform (2) is connected to a control panel (3) at the top. A slider (7) is provided above the test platform (2). A pad (8) is connected to the top of the slider (7). A shearing base (9) is connected to the top of the pad (8). A vertical rod (10) and a fixed seat (12) are connected to the top of the test platform (2). A connecting frame (11) is connected to the vertical rod (10). A vertical loading mechanism (14) is connected to the connecting frame (11). A horizontal loading mechanism (13) is connected to the fixed seat (12). A positioning mechanism for fixing the structure of the slider (7) is provided on one side of the slider (7).

2. The high-efficiency fully automatic single-shear testing system according to claim 1, characterized in that, The test bench (2) is connected to a fixed plate (4) at its upper end, and a diagonal brace (5) is connected to the fixed plate (4). The upper end of the diagonal brace (5) is connected to a vertical rod (10).

3. The high-efficiency fully automatic single-shear testing system according to claim 2, characterized in that, The positioning mechanism includes a slide rail (6), one end of which is rotatably connected to a fixed plate (4), and a slider (7) is slidably connected to the slide rail (6). A screw hole (17) is provided on the slide rail (6), and the slider (7) is connected to the screw hole (17) by a screw (16).

4. The high-efficiency fully automatic single-shear testing system according to claim 3, characterized in that, A deflection shaft (15) is connected to the fixed plate (4), and one end of the slide rail (6) is rotatably connected to the deflection shaft (15).

5. The high-efficiency fully automatic single-shear testing system according to claim 3, characterized in that, A rod (18) is connected to the slide rail (6) and the slider (7).

6. The high-efficiency fully automatic single-shear testing system according to claim 5, characterized in that, The test bench (2) has a limiting groove (20), and a slot block (21) is provided on the limiting groove (20). A limiting post (19) is connected to the insert rod (18), and the limiting post (19) is slidably connected to the slot block (21). A lever (22) is connected to the slot block (21).

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