UHPC axial tension test device

Abstract

The utility model relates to the technical field of civil engineering, and discloses a UHPC axial tension test device which comprises a machining table, the right side of the top of the machining table is fixedly connected with a connecting plate, the front side and the rear side of the top of the connecting plate are both provided with long grooves, the top of the connecting plate is fixedly connected with a fixing plate, and the outer wall of the fixing plate is fixedly connected with an air cylinder. The output end of the air cylinder is fixedly connected with an L-shaped moving block, the other end of the L-shaped moving block is fixedly connected with a first extrusion plate, and the middle of the right side of the top face of the machining table is fixedly connected with a supporting plate. According to the utility model, the UHPC shaft lever is picked up and then placed on the inward side of the extrusion plate I in a matched manner, and then the air cylinder fixedly connected to the fixed plate is started, so that the UHPC shaft lever does not shake or deviate in the test process, the practicability of the test device is improved, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a UHPC axial tension test device. Background Art

[0002] UHPC axial tensile test equipment is commonly used to evaluate the mechanical properties of UHPC materials under tensile loading, including their tensile strength, strain capacity, and fracture behavior. This test equipment consists of the following main parts: UHPC specimens are usually rectangular or cylindrical in shape. At the beginning of the test, both ends of the specimen need to be clamped to ensure that uniform tensile force can be applied during the loading process. The clamping device is usually designed as a mechanical clamp or hydraulic clamp to provide reliable support and fixation of the specimen during the test.

[0003] UHPC axial tension test equipment is used in the engineering design phase to verify the design parameters and performance indicators of UHPC. Engineers can use the test to determine the strength and deformation performance of UHPC under actual stress conditions, thereby ensuring its safety and reliability in structural engineering.

[0004] The UHPC axial tension test device consists of plain round steel bars, ribbed steel bars, a belt conveyor, a metering bucket bracket, and a metering bucket. However, the current UHPC axial tension test lacks a sufficiently stable and secure fixing structure during use, which may cause the specimen to deflect or vibrate during loading, affecting the accuracy and repeatability of the test data and making it impossible to ensure that the specimen remains stable during loading. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a UHPC axial tensile test device, which aims to improve the problem that the current UHPC axial tensile test in the prior art does not have a sufficiently stable and firm fixing structure during use, which may cause the sample to deviate or vibrate during the loading process, affecting the accuracy and repeatability of the test data, and cannot ensure that the sample remains stable during loading.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a UHPC axial tension test device, comprising a processing table, a connecting plate fixedly connected to the top right side of the processing table, elongated grooves are provided on the front and rear sides of the top of the connecting plate, a fixing plate is fixedly connected to the top of the connecting plate, a cylinder is fixedly connected to the outer wall of the fixing plate, an L-shaped moving block is fixedly connected to the output end of the cylinder, an extrusion plate 1 is fixedly connected to the other end of the L-shaped moving block, a support plate is fixedly connected to the middle right side of the top surface of the processing table, circular grooves are provided on the front and rear sides of the top of the support plate, a UHPC shaft rod is engaged with the inner side of the circular groove, bolts are threadedly connected to the left and right sides of the outer wall of the support plate, the other end of the bolt is fixedly connected to the extrusion plate 2, and a detection mechanism is provided on the top left side of the processing table.

[0007] As a further description of the above technical solution:

[0008] The detection mechanism includes a hollow rod, the right side of the hollow rod is fixedly connected to the middle left side of the connecting plate, the inner side of the hollow rod is slidably connected to a moving rod, the right side of the outer wall of the moving rod is fixedly connected to a hollow ring, the outer wall of the hollow ring is fixedly connected to a hanging ring, the top left side of the processing table is fixedly connected to a U-shaped frame, the middle part of the top surface of the U-shaped frame is fixedly connected to a tensile machine, the output end of the tensile machine is fixedly connected to a winding column, the outer wall of the winding column is wrapped with a steel wire rope, the other end of the steel wire rope is fixedly connected to a hook, and the outer wall of the hook is engaged with the inner side of the hanging ring.

[0009] As a further description of the above technical solution:

[0010] A U-shaped groove is provided in the middle of the left side of the processing table, and a lighting lamp is fixedly connected to the middle of the right side of the U-shaped groove.

[0011] As a further description of the above technical solution:

[0012] The bottom of the processing table is fixedly connected with an anti-sliding block, and the middle parts of the front and rear sides of the processing table are fixedly connected with protective plates.

[0013] As a further description of the above technical solution:

[0014] The outward side of the winding column is rotatably connected to a support block, the bottom of the support block is fixedly connected to the front and rear sides of the top of the U-shaped frame, and the inner middle part of the hollow ring is fixedly connected to an anti-slip ring.

[0015] As a further description of the above technical solution:

[0016] The middle part of the inner side of the extrusion plate 1 is fixedly connected with a C-shaped pad 1, and the middle part of the inner side of the extrusion plate 2 is fixedly connected with a C-shaped pad 2.

[0017] As a further description of the above technical solution:

[0018] The middle parts of the front and rear sides of the connecting plate are both fixedly connected with fluorescent plates, and the top front side of the processing table is fixedly connected with a battery.

[0019] As a further description of the above technical solution:

[0020] A controller is fixedly connected to the top rear side of the processing table, and the controller is electrically connected to the tensile machine, the cylinder and the battery respectively.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the UHPC shaft is picked up and then placed on the inward side of the extrusion plate 1, and the bottom end is fitted into the circular groove on the support plate. At this time, the cylinder fixed on the fixed plate is started, and the outer wall of the C-shaped pad 2 and the bottom end of the outer wall of the UHPC shaft are stabilized. Therefore, the UHPC shaft will not shake or deflect during the test, thereby improving the practicality of the test device and meeting the needs of users.

[0023] 2. In the present invention, the hollow rod is fixed to the outer wall of the connecting plate, and slides with the inner part and the moving rod. Then the hook is hung on the hanging ring, and the rotation of the tensile machine drives the winding column to rotate along the outer wall of the support block, so that the bearing tension of the UHPC shaft is higher, avoiding the occurrence of misjudgment of the bearing gravity during use and the occurrence of breakage, thereby improving the use effect of the UHPC shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of a processing table of a UHPC axial tension test device proposed in the present invention;

[0025] Figure 2 This is a disassembled diagram of the processing table structure of a UHPC axial tensile test device proposed in this utility model;

[0026] Figure 3 This is a disassembled display diagram of the support plate of a UHPC axial tension test device proposed in the utility model;

[0027] Figure 4 This is a diagram showing the hollow ring structure of a UHPC axial tension test device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of a U-shaped frame of a UHPC axial tension test device proposed in the present invention.

[0029] Legend:

[0030] 1. Processing table; 2. Testing mechanism; 201. U-shaped frame; 202. Steel wire rope; 203. Hook; 204. Hanging ring; 205. Anti-slip ring; 206. Hollow rod; 207. Moving rod; 208. Hollow ring; 209. Support block; 210. Winding column; 211. Tensile machine; 3. Anti-slip block; 4. Protective plate; 5. Battery; 6. Support plate; 7. UHPC shaft; 8. Connecting plate; 9. Fluorescent plate; 10. Lighting lamp; 11. Controller; 12. U-shaped groove; 13. C-shaped pad (1); 14. Extrusion plate (1); 15. L-shaped moving block; 16. Cylinder; 17. Fixed plate; 18. Long groove; 19. Circular groove; 20. Bolt; 21. Extrusion plate (2); 22. C-shaped pad (2). DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Please see the attached Figure 1 - Attachment Figure 3 , The utility model provides an embodiment: a UHPC axial tension test device, including a processing table 1, a connecting plate 8 is fixedly connected to the right side of the top of the processing table 1, and elongated grooves 18 are provided on the front and rear sides of the top of the connecting plate 8, and a fixing plate 17 is fixedly connected to the top of the connecting plate 8. The outer wall of the fixing plate 17 is fixedly connected to a cylinder 16, and the output end of the cylinder 16 is fixedly connected to an L-shaped moving block 15, and the other end of the L-shaped moving block 15 is fixedly connected to an extrusion plate 14. A support plate 6 is fixedly connected to the middle right side of the top surface of the processing table 1, and circular grooves 19 are provided on the front and rear sides of the top of the support plate 6. The UHPC shaft rod 7 is engaged with the inner side of the circular groove 19, and bolts 20 are threadedly connected to the left and right sides of the outer wall of the support plate 6. The other end of the bolt 20 is fixedly connected to the extrusion plate 21. A detection mechanism 2 is provided on the left side of the top of the processing table 1, a U-shaped groove 12 is provided in the middle left side of the processing table 1, and a lighting lamp 10 is fixedly connected to the middle right side of the U-shaped groove 12.

[0033] Specifically, a connecting plate 8 is firmly installed on the left side of the top surface of the processing table 1. Long grooves 18 are carefully opened on the front and back sides of the top of this connecting plate 8. At the same time, the top of the connecting plate 8 is also neatly fixedly connected to the fixed plate 17. The outer wall of these fixed plates 17 is tightly fixed to the cylinder 16. When the cylinder 16 is started, its output end will firmly push the L-shaped moving block 15 to move, so that the extrusion plate 14 can move accurately with the movement of the L-shaped moving block 15. The outer wall of the support plate 6 is cleverly threaded with bolts 20 on both sides, which can make the extrusion plate 2 21 move inward, thereby tightly squeezing the UHPC shaft 7 engaged in the circular groove 19.

[0034] Please see the attached Figure 4 - Attachment Figure 5 The detection mechanism 2 includes a hollow rod 206, the right side of the hollow rod 206 is fixedly connected to the middle of the left side of the connecting plate 8, the inner side of the hollow rod 206 is slidably connected to a moving rod 207, the outer wall of the moving rod 207 is fixedly connected to the right side with a hollow ring 208, the outer wall of the hollow ring 208 is fixedly connected to a hanging ring 204, the top left side of the processing table 1 is fixedly connected to a U-shaped frame 201, the middle of the top surface of the U-shaped frame 201 is fixedly connected to a tensile machine 211, the tensile machine 2 The output end of 11 is fixedly connected to a winding column 210, the outer wall of which is wound with a steel wire rope 202, the other end of which is fixedly connected to a hook 203, the outer wall of which is engaged with the inner side of a hanging ring 204, the outward side of the winding column 210 is rotatably connected to a support block 209, the bottom of which is fixedly connected to the front and rear sides of the top of the U-shaped frame 201, and the inner middle part of the hollow ring 208 is fixedly connected to an anti-slip ring 205;

[0035] Specifically, the inner side of the hollow rod 206 is connected to the movable rod 207 in a smooth sliding connection. The movable rod 207 can slide flexibly within the hollow rod 206. The outer wall of the hollow ring 208 is firmly fixedly connected to the hanging ring 204 via a solid fixed connection method. The hanging ring 204 can withstand a certain amount of tension and weight and is used for connecting and mounting other components. The output end of the tensile machine 211 is tightly fixedly connected to the winding column 210 via a solid fixed connection method. The winding column 210 can rotate under the drive of the tensile machine 211.

[0036] Please see the attached Figure 1 - Attachment Figure 3, the bottom of the processing table 1 is fixedly connected with an anti-sliding block 3, the middle parts of the front and rear sides of the processing table 1 are fixedly connected with a protective plate 4, the inner middle part of the extrusion plate 14 is fixedly connected with a C-shaped pad 13, the inner middle part of the extrusion plate 21 is fixedly connected with a C-shaped pad 22, the middle parts of the front and rear sides of the connecting plate 8 are fixedly connected with a fluorescent plate 9, the top front side of the processing table 1 is fixedly connected with a battery 5, and the top rear side of the processing table 1 is fixedly connected with a controller 11, and the controller 11 is electrically connected to the tensile machine 211, the cylinder 16 and the battery 5 respectively;

[0037] Specifically, the inner middle part of the extrusion plate 14 is firmly fixedly connected with the C-shaped pad 13 through a stable fixed connection means. The C-shaped pad 13 fits tightly in the inner middle part of the extrusion plate 14. It has certain elasticity and buffering performance. When the extrusion plate 14 extrude and fixes the relevant parts, it can protect the extruded parts, increase friction, and improve the stability of fixation. The middle parts of the front and rear sides of the connecting plate 8 are accurately fixedly connected with the fluorescent plate 9 through a reliable fixing method.

[0038] Working principle: When it is necessary to test the UHPC shaft, first pick up the UHPC shaft rod 7 to be tested, and then place it on the inward side of the extrusion plate 14, and fit the bottom end with the circular groove 19 provided on the support plate 6. At this time, the cylinder 16 fixedly connected to the fixed plate 17 is started, so that the L-shaped moving block 15 is relatively pulled along the inner side of the elongated groove 18, so that the C-shaped pad 13 fixedly connected to the extrusion plate 14 fits with the outer wall of the UHPC shaft rod 7, thereby stabilizing the upper and middle part of the outer wall of the UHPC shaft rod 7. Then, the bolt 20 threadedly connected to the support plate 6 is twisted, and the extrusion plate 21 moves relative to each other, and the outer wall of the C-shaped pad 22 and the bottom end of the outer wall of the UHPC shaft rod 7 are stabilized. Therefore, it is achieved that the UHPC shaft rod 7 will not shake or deflect during the test, thereby improving the practicality of the test device and meeting the needs of users.

[0039] After that, the hollow rod 206 is fixed to the outer wall of the connecting plate 8, and the inner part is slid with the moving rod 207. At this time, the inner side of the hollow ring 208 contacts the outer wall of the UHPC shaft rod 7. Then, the other end of the outer wall of the hollow ring 208 is fixed to the hanging ring 204. At this time, the hook 203 is hung on the hanging ring 204, and the rotation of the tensile machine 211 drives the winding column 210 to rotate along the outer wall of the support block 209. The steel wire rope 202 is wound around the outer wall of the winding column 210. When the winding length of the steel wire rope 202 is shorter, the load-bearing tension of the UHPC shaft rod 7 is higher, and the load-bearing tension of the UHPC shaft rod 7 can be detected. Therefore, it is possible to effectively detect the load-bearing tension of the UHPC shaft rod 7, avoid misjudgment of the load-bearing gravity during use, and avoid breakage, thereby improving the use effect of the UHPC shaft rod 7.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A UHPC axial tensile test device, comprising a processing table (1), characterized in that: The top right side of the processing table (1) is fixedly connected to a connecting plate (8), and the front and rear sides of the top of the connecting plate (8) are both provided with elongated grooves (18). The top of the connecting plate (8) is fixedly connected to a fixing plate (17), and the outer wall of the fixing plate (17) is fixedly connected to a cylinder (16), and the output end of the cylinder (16) is fixedly connected to an L-shaped moving block (15), and the other end of the L-shaped moving block (15) is fixedly connected to an extrusion plate 1 (14). The middle right side of the top surface of the processing table (1) is fixedly connected to a support plate (6), and the front and rear sides of the top of the support plate (6) are both provided with circular grooves (19), and the inner side of the circular groove (19) is engaged with a UHPC shaft (7). The left and right sides of the outer wall of the support plate (6) are both threadedly connected to bolts (20), and the other end of the bolt (20) is fixedly connected to an extrusion plate 2 (21). A detection mechanism (2) is provided on the left side of the top of the processing table (1).

2. The UHPC axial tensile test device according to claim 1, characterized in that: The detection mechanism (2) comprises a hollow rod (206), the right side of the hollow rod (206) is fixedly connected to the middle of the left side of the connecting plate (8), the inner side of the hollow rod (206) is slidably connected to a moving rod (207), the right side of the outer wall of the moving rod (207) is fixedly connected to a hollow ring (208), the outer wall of the hollow ring (208) is fixedly connected to a hanging ring (204), the top left side of the processing table (1) is fixedly connected to a U-shaped frame (201), the middle part of the top surface of the U-shaped frame (201) is fixedly connected to a tensile machine (211), the output end of the tensile machine (211) is fixedly connected to a winding column (210), the outer wall of the winding column (210) is wound with a steel wire rope (202), the other end of the steel wire rope (202) is fixedly connected to a hook (203), and the outer wall of the hook (203) is engaged with the inner side of the hanging ring (204).

3. The UHPC axial tensile test device according to claim 1, characterized in that: A U-shaped groove (12) is provided in the middle of the left side of the processing table (1), and a lighting lamp (10) is fixedly connected to the middle of the right side of the U-shaped groove (12).

4. The UHPC axial tensile test device according to claim 1, characterized in that: The bottom of the processing table (1) is fixedly connected to an anti-sliding block (3), and the middle portions of the front and rear sides of the processing table (1) are both fixedly connected to protective plates (4).

5. The UHPC axial tensile test device according to claim 2, characterized in that: The outward side of the winding column (210) is rotatably connected to a support block (209), the bottom of the support block (209) is fixedly connected to the front and rear sides of the top of the U-shaped frame (201), and the inner middle part of the hollow ring (208) is fixedly connected to an anti-slip ring (205).

6. The UHPC axial tensile test device according to claim 1, characterized in that: The inner middle portion of the first extrusion plate (14) is fixedly connected to a C-shaped pad (13), and the inner middle portion of the second extrusion plate (21) is fixedly connected to a C-shaped pad (22).

7. The UHPC axial tensile test device according to claim 1, characterized in that: Fluorescent plates (9) are fixedly connected to the middle portions of the front and rear sides of the connecting plate (8), and a storage battery (5) is fixedly connected to the front side of the top of the processing table (1).

8. The UHPC axial tensile test device according to claim 1, characterized in that: A controller (11) is fixedly connected to the top rear side of the processing table (1), and the controller (11) is electrically connected to the tensile machine (211), the cylinder (16), and the battery (5), respectively.

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