Compression resistance tester

Abstract

The utility model discloses a compression resistance tester, belongs to the technical field of rock-soil testing, and solves the problem that the existing compression resistance tester cannot be properly adapted to the aspect of rock-soil detection. Comprising a base and a top frame located above the base, a horizontally-arranged middle rod and side rods located on the two sides of the middle rod are fixedly connected into the top frame, a supporting plate is hinged to the lower portions of the side rods, and the deflection angle of the supporting plate relative to the side rods is adjustable. According to the utility model, when people need to pressurize rock soil through a pressure resistance tester and then test pressure resistance parameters of the tester, people only need to place the rock soil to be detected on the base and then start the laser pen, so that the laser pen emits laser, and then the piston rods on the two sides of the double-head cylinder stretch out and draw back; and in the process, the laser pen deflects along with the adjustment of the angle of the hydraulic cylinder until the laser irradiates the surface of the rock soil, so that when the hydraulic cylinder pushes the pressing plate, the pressing plate can certainly extrude the rock soil, and the compression resistance test is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil testing, in particular to a compression tester. Background Art

[0002] In geotechnical testing, the compression tester compresses soil, rock and other materials by applying vertical downward force to obtain data such as compressive strength and deformation characteristics. These data have important reference value in engineering design, construction and material selection, and can guide the implementation of engineering projects and ensure engineering quality and safety.

[0003] The compression testers in the prior art are usually directly converted from the compression testers used to test packaging cartons. On the one hand, the shape and specifications of the rock and soil themselves are different from those of the packaging cartons and cannot adapt to the downward pressure of the compression tester. On the other hand, the compression testers can only cope with limited specifications of packaging cartons and cannot adapt to rock and soil with larger volumes. Therefore, the current compression testers cannot be properly adapted to rock and soil testing.

[0004] Therefore, a compression tester is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the proposed compression tester is very easy to operate when conducting rock and soil compression tests. It is only necessary to place the rock and soil to be tested on the base, and then start the laser pen, and the laser will be focused and irradiated onto the surface of the rock and soil. As the piston rod of the double-headed cylinder is extended and retracted, the angle of the hydraulic cylinder is fine-tuned, so that the laser pen is also deflected accordingly, and finally ensures that the laser is irradiated on the rock and soil. Next, the hydraulic cylinder will push the pressure plate to apply pressure to the rock and soil, completing the entire compression test process.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The compression tester comprises a base and a top frame located above the base, wherein a horizontally arranged middle rod and side rods located on both sides thereof are fixedly connected inside the top frame, a support plate is hinged under the side rod, the deflection angle of the support plate relative to the side rod is adjustable, and a hydraulic cylinder is fixedly connected to the support plate, and the piston rod of the hydraulic cylinder is fixedly connected to a pressure plate that can press the rock and soil to be tested.

[0008] Preferably, the bottom surface of the side rod is fixedly connected with a plurality of articulated seats 1 arranged in a linear array, and the support plate is fixedly connected with an articulated seat 2 hinged to the articulated seat 1, and the rotational friction force between the articulated seat 1 and the articulated seat 2 is smaller than the gravity component of the support plate, the hydraulic cylinder and the pressure plate.

[0009] Preferably, the bottom surface of the intermediate rod is detachably connected to a double-headed cylinder via a mounting seat, and the two piston rods of the double-headed cylinder are both arranged corresponding to the support plate. When the angle of the support plate is adjusted, the piston rod of the double-headed cylinder always contacts the support plate.

[0010] Preferably, a laser pen penetrating the support plate is fixedly connected to the support plate, and the pressure plate is made of a transparent material.

[0011] Preferably, the pressing plate is made of polymethyl methacrylate.

[0012] Preferably, a support frame arranged upright is fixedly connected to the base, and the top frame is fixedly connected to the support frame.

[0013] Preferably, the base is made of tool steel.

[0014] The utility model has the following beneficial effects:

[0015] When the utility model is used to test the rock and soil compression parameters, it is only necessary to place the rock and soil to be tested on a stable base, and then start the laser pen, the laser will emit a high-intensity beam, and then the piston rods on both sides of the double-headed cylinder will be extended and retracted, so that the angle of the hydraulic cylinder will be accurately deflected. During this process, the laser pen will accurately follow the deflection until the laser is accurately irradiated on the surface of the rock and soil. In this way, when the hydraulic cylinder pushes the pressure plate, it can ensure that the pressure plate applies uniform extrusion force to the rock and soil, so as to complete a reliable compression test.

[0016] The laser pen angle adjustment is adopted, and the laser pen's rays can track the movement of the hydraulic cylinder, and can accurately illuminate the rock surface no matter how small the deflection angle of the hydraulic cylinder is. Through the combination of flexible double-head cylinders and adjustable angle hydraulic cylinders, the system can accurately test the compressive capacity of rock and soil under different pressures.

[0017] In summary, in the field of geotechnical compression testing, it is easy to operate and has high precision, which can realize the accurate measurement and evaluation of geotechnical compression parameters and provide an important experimental data basis for engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a structural schematic diagram of the extrusion component in the utility model.

[0021] 1. Base; 2. Support frame; 3. Top frame; 4. Middle rod; 5. Side rod; 6. Double-head cylinder; 7. Articulated seat 1; 8. Articulated seat 2; 9. Support plate; 10. Hydraulic cylinder; 11. Pressing plate; 12. Laser pen. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Compression tester, such as Figure 1 As shown, it includes a base 1 and a top frame 3 located above the base 1, a support frame 2 arranged upright is fixedly connected to the base 1, the top frame 3 is fixedly connected to the support frame 2, and the base 1 is made of tool steel.

[0024] like Figure 2 and 3 As shown, a horizontally arranged middle rod 4 and side rods 5 located on both sides thereof are fixedly connected in the top frame 3, a support plate 9 is hingedly connected below the side rod 5, a laser pen 12 penetrating the side rod 5 is fixedly connected to the support plate 9, a plurality of articulated seats 7 arranged in a linear array are fixedly connected to the bottom surface of the side rod 5, an articulated seat 2 8 articulated to the articulated seat 1 7 is fixedly connected to the support plate 9, the rotational friction between the articulated seat 1 7 and the articulated seat 2 8 is smaller than the gravity component of the support plate 9, the hydraulic cylinder 10 and the pressure plate 11, and the support plate 9 is opposite to the side. The deflection angle of the rod 5 is adjustable. Specifically, the bottom surface of the intermediate rod 4 is detachably connected to the double-headed cylinder 6 through a mounting seat. The two piston rods of the double-headed cylinder 6 are both arranged corresponding to the support plate 9. When the angle of the support plate 9 is adjusted, the piston rod of the double-headed cylinder 6 always contacts the support plate 9, and a hydraulic cylinder 10 is fixedly connected to the support plate 9. The piston rod of the hydraulic cylinder 10 is fixedly connected to a pressure plate 11 that can press the rock and soil to be tested. The pressure plate 11 is made of transparent material. Specifically, the pressure plate 11 is made of polymethyl methacrylate material.

[0025] When people need to perform compression test on rock and soil through this compression tester, they only need to place the rock and soil on the base 1 made of tool steel. Since the hardness and strength of the base 1 are relatively high, when the rock and soil collide rigidly with the base 1, the base 1 will not be damaged.

[0026] Then, after the rock and soil are placed, people only need to turn on the laser pen 12, so that the laser pen 12 emits a laser, and after it penetrates the transparent pressure plate 11, it shines on the surface of the rock and soil. If the laser does not shine on the surface of the rock and soil, the volume of the rock and soil is large or small at this time, then people only need to start the double-headed cylinder 6, so that the piston rod in the double-headed cylinder 6 can be extended and retracted, and the piston rod in the double-headed cylinder 6 can contact the support plate 9, so that the piston rod in the double-headed cylinder 6 contacts the support plate 9 and deflects. When the support plate 9 deflects, the hinge seat 2 8 on the support plate 9 can rotate relative to the hinge seat 1 7 under the side rod 5, so that the laser on the laser pen 12 can shine on the surface of the rock and soil, thereby ensuring that the pressure plate 11 can definitely contact the rock and soil.

[0027] Then the hydraulic cylinder 10 pushes the piston rod therein to move. When the piston rod in the hydraulic cylinder 10 moves, it drives the pressure plate 11 to move, so that the pressure plate 11 can contact with the rock and soil, thereby completing the extrusion of the rock and soil, so that the compression performance parameters of the rock and soil can be tested.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Compression tester, characterized in that: The invention comprises a base (1) and a top frame (3) located above the base, wherein a horizontally arranged middle rod (4) and side rods (5) located on both sides of the middle rod are fixedly connected inside the top frame (3), a support plate (9) is hingedly connected below the side rod (5), the deflection angle of the support plate (9) relative to the side rod (5) is adjustable, and a hydraulic cylinder (10) is fixedly connected to the support plate (9), and the piston rod of the hydraulic cylinder (10) is fixedly connected to a pressure plate (11) capable of pressing against the rock and soil to be tested.

2. The compression tester according to claim 1, characterized in that: The bottom surface of the side rod (5) is fixedly connected to a plurality of articulated seats (7) arranged in a linear array, and the support plate (9) is fixedly connected to an articulated seat (8) hinged to the articulated seat (7), and the rotational friction between the articulated seat (7) and the articulated seat (8) is smaller than the gravity component of the support plate (9), the hydraulic cylinder (10) and the pressure plate (11).

3. The compression tester according to claim 2, characterized in that: The bottom surface of the intermediate rod (4) is detachably connected to a double-headed cylinder (6) via a mounting seat, and the two piston rods of the double-headed cylinder (6) are both arranged corresponding to the support plate (9). When the angle of the support plate (9) is adjusted, the piston rod of the double-headed cylinder (6) always contacts the support plate (9).

4. The compression tester according to claim 1, characterized in that: The support plate (9) is fixedly connected to a laser pen (12) that penetrates the support plate, and the pressing plate (11) is made of a transparent material.

5. The compression tester according to claim 4, characterized in that: The pressing plate (11) is made of polymethyl methacrylate.

6. The compression tester according to claim 1, characterized in that: A support frame (2) arranged upright is fixedly connected to the base (1), and the top frame (3) is fixedly connected to the support frame (2).

7. The compression tester according to claim 1, characterized in that: The base (1) is made of tool steel.

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