Non-destructive concrete compressive strength torque detection device

Abstract

The utility model discloses a non-destructive concrete compressive strength torque detection device, which belongs to the technical field of torque detection and comprises a test board, a support plate, an adjusting assembly and a clamping assembly. The supporting plate is fixedly installed at the top of the test board, the adjusting assembly is arranged at the top of the test board, the clamping assembly is arranged on the adjusting assembly, and the adjusting assembly comprises a base, a fixing plate, a first bidirectional threaded rod, a moving block and a guide rod. According to the non-destructive concrete compressive strength torque detection device, the distance between the positioning columns on the left side and the right side can be adjusted by arranging the clamping assembly and rotating the hand wheel, the distance between the two positioning columns on one side can be adjusted by rotating the rotating grip, and the four adjustable positioning columns are suitable for clamping test pieces of different shapes and sizes; and if some special-shaped test pieces need to be clamped, the positioning columns are detached, so that the positioning pieces suitable for the special-shaped test pieces can be conveniently replaced, and the application range is wide.

Description

Technical Field

[0001] This application relates to the field of torque detection, and particularly to a non-destructive torque detection device for concrete compressive strength. Background Art

[0002] The compressive strength of concrete is an index to measure its ability to resist damage under compressive force. This property is crucial for ensuring the safety, durability, and functionality of structures. When a torque is applied to a concrete specimen, the stress distribution and deformation inside the concrete will reflect the characteristics of its compressive strength. By analyzing these mechanical response data, the compressive strength of the concrete can be indirectly inferred.

[0003] According to the Chinese patent number CN214621565U, a new type of torque testing device includes: a connecting box body arranged on the surface of the horizontal ground. In the middle of the top of the connecting box body, a torsion seat is installed. Inside the torsion seat, an adjusting rod is movably installed, and a movable block is threadedly connected to the outer wall of the adjusting rod. A first limiting block is fixed to the top of the movable block, and a second limiting block is installed on the side of the first limiting block. A column is fixed to the top of the connecting box body, a lead screw is installed on the side of the column, and a detection frame is arranged outside the column and the lead screw.

[0004] Currently, torque detection devices usually need to use clamps. The positions of workpieces are limited and fixed by multiple positioning columns on the clamps to avoid displacement of specimens during the test. However, in this patent publication, the test specimens are clamped and limited by two arc-shaped limiting blocks. Since the shapes of the test specimens are diverse, it is difficult to adapt to some special-shaped test specimens with arc-shaped limiting blocks, and the clamping may be unstable. Therefore, a non-destructive torque detection device for concrete compressive strength is proposed. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a non-destructive torque detection device for concrete compressive strength, which has the advantages of being convenient for firmly clamping test specimens of different shapes.

[0006] In summary, this application provides the following technical solution: A non-destructive torque detection device for concrete compressive strength, including a test bench, a support plate, an adjustment assembly, and a clamping assembly. The support plate is fixedly installed on the top of the test bench. The adjustment assembly is arranged on the top of the test bench, and the clamping assembly is arranged on the adjustment assembly.

[0007] The adjusting assembly includes a base, a fixing plate, a first bidirectional threaded rod, a moving block, and a guiding rod. There are two fixing plates and two moving blocks. The two fixing plates are respectively fixed on the left and right sides of the top of the base. The first bidirectional threaded rod is rotatably connected between the two fixing plates. The guiding rod is fixedly connected between the two fixing plates. The two moving blocks are threadedly connected to the two sides of the outside of the first bidirectional threaded rod, and the moving blocks are slidably connected to the outside of the guiding rod.

[0008] The clamping assembly includes an outer frame, a second bidirectional threaded rod, a threaded block, a mounting rod, and a positioning post. The second bidirectional threaded rod is rotatably connected inside the outer frame. The threaded block is threadedly connected to the outside of the second bidirectional threaded rod. The mounting rod is fixedly connected to the top of the threaded block. The positioning post is detachably mounted on the mounting rod.

[0009] A test assembly is provided on the support plate.

[0010] By adopting the above technical solution, by setting the clamping assembly, the distance between the left and right positioning posts can be adjusted by rotating the handwheel, and the distance between the two positioning posts on one side can be adjusted by rotating the rotating grip. The four adjustable positioning posts are suitable for clamping test pieces of different shapes and sizes. When it is necessary to clamp some relatively special-shaped test pieces, the positioning posts can be disassembled, and it is convenient to replace the positioning parts suitable for specific special-shaped test pieces, with a wide range of applications.

[0011] Further, the test assembly includes an electric push rod. The electric push rod is installed on the inner wall of the support plate. A driving motor is fixedly connected to the telescopic end of the electric push rod. A torque sensor is installed on the output shaft of the driving motor. A mounting seat is installed at the bottom of the torque sensor.

[0012] By adopting the above technical solution, by setting the torque sensor connected to the output shaft of the driving motor, when the output shaft of the driving motor rotates, it will drive the torque sensor to rotate synchronously.

[0013] Further, a limiting groove is opened at the bottom of the mounting seat. A positioning plug is clamped inside the limiting groove. A force applying member is fixedly connected to the bottom of the positioning plug.

[0014] By adopting the above technical solution, the positioning effect is achieved by inserting the positioning plug into the limiting groove.

[0015] Further, a limiting insertion rod passing through the positioning plug is inserted into the mounting seat. A first nut is threadedly connected to the outside of the limiting insertion rod;

[0016] Further, a sliding groove is opened at the top of the outer frame. The top of the mounting rod sequentially passes through the sliding groove and the positioning post and extends to the outside.

[0017] Further, a second nut that presses against the top of the positioning post is threadedly connected to the outside of the mounting rod.

[0018] By adopting the above technical solution, the force-applying member can be fixed to the mounting base by passing the limiting insertion rod through the mounting base and the limiting insertion rod and then fixing it with the first nut.

[0019] Further, one end of the second bidirectional threaded rod penetrates through the outer frame and extends to the outside and is fixedly connected to the rotating grip, and there are two threaded blocks.

[0020] By adopting the above technical solution, the rotating grip facilitates driving the second bidirectional threaded rod to rotate, so that the two threaded blocks can move relatively or in opposite directions.

[0021] Further, a control box is installed on the top of the test bench, and one end of the first bidirectional threaded rod penetrates through the fixing plate and extends to the outside and is fixed with a handwheel.

[0022] By adopting the above technical solution, the handwheel facilitates rotating the first bidirectional threaded rod, thereby facilitating adjusting the distance between the two moving blocks.

[0023] For this non-destructive concrete compressive strength torque detection device, by setting the clamping assembly, the distance between the left and right positioning posts can be adjusted by rotating the handwheel, the distance between the two positioning posts on one side can be adjusted by rotating the rotating grip, and the four adjustable positioning posts are suitable for clamping test pieces of different shapes and sizes. When it is necessary to clamp some relatively special-shaped test pieces, the positioning posts can be disassembled, and it is convenient to replace the positioning parts suitable for specific special-shaped test pieces, and the applicable range is wide. Description of the Drawings

[0024] Figure 1 is the front view of the structure of this application;

[0025] Figure 2 is the side cross-sectional view of the adjustment assembly of the structure of this application;

[0026] Figure 3 is the partial cross-sectional view of the mounting base and the force-applying member of the structure of this application;

[0027] Figure 4 is the three-dimensional view of the positioning post of the structure of this application.

[0028] Description of the Reference Numerals:

[0029] 1. Test bench; 2. Base; 3. Support plate; 4. Electric push rod; 5. Driving motor; 6. Torque sensor; 61. Mounting seat; 62. Limit groove; 7. Force applying member; 8. Control box; 9. Fixed plate; 10. First bidirectional threaded rod; 11. Guide rod; 12. Moving block; 13. Clamping assembly; 131. Outer frame; 132. Second bidirectional threaded rod; 133. Threaded block; 134. Slide hole; 135. Mounting rod; 136. Positioning column; 137. Second nut; 138. Rotating grip; 14. Positioning plug; 15. Limit plug; 16. First nut. Detailed implementation manner

[0030] Please refer to Figures 1 to 3 , a non-destructive concrete compressive strength torque detection device in this embodiment, includes a test bench 1, a support plate 3, an adjustment assembly and a clamping assembly 13. The support plate 3 is fixedly installed on the top of the test bench 1. The adjustment assembly is arranged on the top of the test bench 1, and the clamping assembly 13 is arranged on the adjustment assembly.

[0031] The adjustment assembly includes a base 2, a fixed plate 9, a first bidirectional threaded rod 10, a moving block 12 and a guide rod 11. The number of the fixed plates 9 and the moving blocks 12 is two. The two fixed plates 9 are respectively fixed on the left and right sides of the top of the base 2. The first bidirectional threaded rod 10 is rotatably connected between the two fixed plates 9. The guide rod 11 is fixedly connected between the two fixed plates 9. The two moving blocks 12 are threadedly connected to the two sides of the outside of the first bidirectional threaded rod 10, and the moving blocks 12 are slidably connected to the outside of the guide rod 11.

[0032] A control box 8 is installed on the top of the test bench 1. One end of the first bidirectional threaded rod 10 penetrates through the fixed plate 9 and extends to the outside and is fixed with a handwheel. It is convenient to rotate the first bidirectional threaded rod 10 through the handwheel, so as to conveniently adjust the distance between the two moving blocks 12.

[0033] Through the adjustment assembly, turning the handwheel can adjust the distance between the positioning columns 136 on the left and right sides, which is convenient for clamping test pieces of different sizes.

[0034] The clamping assembly 13 includes an outer frame 131, a second bidirectional threaded rod 132, a threaded block 133, a chute 134, a mounting rod 135 and a positioning column 136. The second bidirectional threaded rod 132 is rotatably connected inside the outer frame 131. The threaded block 133 is threadedly connected to the outside of the second bidirectional threaded rod 132. The mounting rod 135 is fixedly connected to the top of the threaded block 133. The positioning column 136 is detachably installed on the mounting rod 135; the top of the mounting rod 135 sequentially penetrates through the chute 134 and the positioning column 136 and extends to the outside.

[0035] Please refer to Figure 1, in this embodiment, a test component is provided on the support plate 3. The test component includes an electric push rod 4. The electric push rod 4 is installed on the inner wall of the support plate 3. A driving motor 5 is fixedly connected to the telescopic end of the electric push rod 4. A torque sensor 6 is installed on the output shaft of the driving motor 5. A mounting seat 61 is installed at the bottom of the torque sensor 6. A limiting groove 62 is opened at the bottom of the mounting seat 61. A positioning plug 14 is clamped inside the limiting groove 62. A force applying member 7 is fixedly connected to the bottom of the positioning plug 14.

[0036] Please refer to Figure 4 , the positioning post 136 is of a cylindrical structure. A circular through hole is opened inside the positioning post 136. Four adjustable positioning posts 136 are used to clamp test pieces of different shapes and sizes. When it is necessary to clamp some relatively special-shaped test pieces, the positioning posts 136 can be disassembled, and it is convenient to replace the positioning members suitable for specific special-shaped test pieces, with a wide range of applications.

[0037] A limiting insertion rod 15 passing through the positioning plug 14 is inserted into the mounting seat 61. A first nut 16 is threadedly connected to the outside of the limiting insertion rod 15.

[0038] Among them, by setting the torque sensor 6 to be connected to the output shaft of the driving motor, when the output shaft of the driving motor rotates, it will drive the torque sensor 6 to rotate synchronously, and the positioning plug 14 is inserted into the limiting groove 62 to play a positioning role.

[0039] It can be understood that by passing the limiting insertion rod 15 through the mounting seat 61 and the limiting insertion rod 15 and then fixing it with the first nut 16, the force applying member 7 can be fixed on the mounting seat 61, so as to facilitate the replacement of the force applying member 7 adapted to different shapes. By clamping the force applying member 7 outside the test piece, pressure can be applied to the test piece by rotating the force applying member 7.

[0040] The output value of the driving motor 5 can be conveniently and accurately controlled through the control box, which is convenient for controlling the applied torque value and avoiding damage to the test piece.

[0041] Please refer to Figure 2 , one end of the second bidirectional threaded rod 132 penetrates through the outer frame 131 and extends to the outside and is fixedly connected to the rotary grip 138. There are two threaded blocks 133. A second nut 137 that presses against the top of the positioning post 136 is threadedly connected to the outside of the mounting rod 135.

[0042] Among them, by rotating the rotary grip 138, it is convenient to drive the second bidirectional threaded rod 132 to rotate, so that the two threaded blocks 133 can move relative to each other or in the opposite direction, and the mounting rod 135 is slidably connected inside the sliding hole 134 to play a limiting role on the threaded blocks 133.

[0043] The working principle of the above embodiment is as follows: When in use, place the test piece between the four positioning posts 136. Rotating the handwheel can drive the first double-threaded rod 10 to rotate, so that the two moving blocks 12 move relative to each other or in opposite directions, and the distance between the left and right positioning posts 136 can be adjusted. By rotating the rotating grip 138 to drive the second double-threaded rod 132 to rotate, the two threaded blocks 133 can move relative to each other or in opposite directions, so that the distance between the two positioning posts 136 on one side can be adjusted. The four adjustable positioning posts 136 are suitable for clamping test pieces of different shapes and sizes. When it is necessary to clamp some relatively special-shaped test pieces, rotate the second nut 137 to remove the positioning post 136 from the mounting rod 135, and the positioning post 136 can be disassembled, so that it is convenient to replace the positioning piece suitable for a specific special-shaped test piece, and the scope of application is wide. Then, the electric push rod 4 is used to push the driving motor 5 downward, so that the force application member 7 adapted to the test piece clamps one end of the test piece, and the driving motor 5 can drive the force application member 7 to rotate to apply torque to the test piece, and the torque value can be detected by the torque sensor 6.

Claims

1. A non-destructive torque detection device for concrete compressive strength, comprising a test bench (1), a support plate (3), an adjustment assembly and a clamping assembly (13), characterized in that: The support plate (3) is fixedly installed on the top of the test bench (1), the adjustment assembly is arranged on the top of the test bench (1), and the clamping assembly (13) is arranged on the adjustment assembly; The adjustment assembly includes a base (2), a fixing plate (9), a first bidirectional threaded rod (10), a moving block (12) and a guide rod (11). The number of the fixing plates (9) and the moving blocks (12) is two. The two fixing plates (9) are respectively fixed on the left and right sides of the top of the base (2). The first bidirectional threaded rod (10) is rotatably connected between the two fixing plates (9). The guide rod (11) is fixedly connected between the two fixing plates (9). The two moving blocks (12) are threadedly connected to the two sides of the outside of the first bidirectional threaded rod (10), and the moving blocks (12) are slidably connected to the outside of the guide rod (11); The clamping assembly (13) includes an outer frame (131), a second bidirectional threaded rod (132), a threaded block (133), a mounting rod (135) and a positioning post (136). The second bidirectional threaded rod (132) is rotatably connected inside the outer frame (131). The threaded block (133) is threadedly connected to the outside of the second bidirectional threaded rod (132). The mounting rod (135) is fixedly connected to the top of the threaded block (133). The positioning post (136) is detachably installed on the mounting rod (135); A test assembly is arranged on the support plate (3).

2. The non-destructive concrete compressive strength torque detection device according to claim 1, characterized in that: The test assembly includes an electric push rod (4). The electric push rod (4) is installed on the inner wall of the support plate (3). A driving motor (5) is fixedly connected to the telescopic end of the electric push rod (4). A torque sensor (6) is installed on the output shaft of the driving motor (5). A mounting seat (61) is installed at the bottom of the torque sensor (6).

3. The non-destructive concrete compressive strength torque detection device according to claim 2, characterized in that: A limiting groove (62) is formed at the bottom of the mounting seat (61), and a positioning plug (14) is clamped inside the limiting groove (62).

4. A non-destructive concrete compressive strength torque detection device according to claim 3, characterized in that: A limiting plug rod (15) passing through the positioning plug (14) is inserted into the mounting seat (61), and a first nut (16) is threadedly connected to the outside of the limiting plug rod (15).

5. The non-destructive concrete compressive strength torque detection device according to claim 1, characterized in that: A sliding groove (134) is formed at the top of the outer frame (131), and the top of the mounting rod (135) sequentially passes through the sliding groove (134) and the positioning post (136) and extends to the outside.

6. The non-destructive concrete compressive strength torque detection device according to claim 5, characterized in that: A second nut (137) pressing against the top of the positioning post (136) is threadedly connected to the outside of the mounting rod (135).

7. A non-destructive torque detection device for concrete compressive strength according to claim 1, characterized in that: One end of the second bidirectional threaded rod (132) passes through the outer frame (131) and extends to the outside and is fixedly connected to a rotary grip (138), and the number of the threaded blocks (133) is two.

8. A non-destructive concrete compressive strength torque detection device according to claim 1, characterized in that: A control box (8) is installed on the top of the test bench (1), and one end of the first bidirectional threaded rod (10) passes through the fixing plate (9) and extends to the outside and is fixed with a hand wheel.

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