Tension testing device for steel structure detection

Abstract

The utility model discloses a tension testing device for detecting a steel structure, which relates to the technical field of tension testing equipment and comprises a moving beam capable of moving up and down, a driving screw rod I capable of driving the moving beam to move and a machine body mounted with the driving screw rod I, the moving beam and the machine body are each provided with a positioning structure used for positioning the two ends of the steel structure, and when the moving beam and the positioning structures distributed upwards ascend, pulling force can be applied to the steel structure. The anti-falling structure capable of allowing the steel structure to penetrate through is arranged, and when the pulling force applied to the upper portion of the steel structure is too large, the anti-falling structure can effectively limit the deviation state of the steel structure, respond to the steel structure in the moving state and effectively limit the deviation angle of the steel structure; the phenomenon that the steel structure is separated from the positioning structure under the condition that the tensile force borne by the steel structure is too large can be avoided, the stability of the steel structure is kept, and the safety in the tensile force test working process is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile testing equipment, in particular to a tensile testing device for steel structure detection. Background Technique

[0002] The tensile test of steel structure is to determine the strength and deformation ability of steel. The principle of this test is to use a tensile testing machine to stretch the specimen. By measuring the tensile force and deformation of the specimen, the strength and deformation ability indexes of steel can be calculated. The tensile test is a test method to determine the characteristics of materials under tensile load, and it can determine key indexes such as the elastic limit, yield point, and strength limit of materials. These parameters are crucial for the safety and stability of steel structures. Therefore, conducting a tensile test on them is a necessary step to ensure the quality and safety of buildings.

[0003] The principle of the tensile test of steel structure is to use a tensile testing machine to stretch the specimen. By measuring the tensile force and deformation of the specimen, the strength and deformation ability indexes of steel are calculated. Specifically, the most commonly used is the uniaxial tensile test (applying load along the central axis), stretching the specimen uniformly at a specified rate, and recording the tensile force and elongation.

[0004] In the existing tensile test device for steel structures, during the operation of implementing the test, it is necessary to connect the two ends of the steel structure through clamps to fix the steel structure. However, during the process of applying tensile force to the top of the steel structure and the machine body implementing the detection operation on the steel structure, when the tensile force applied above it is excessive, the steel structure is easily pulled out of the clamp and deviates from its original position, and the stable state of its bottom end is affected, which in turn easily affects the normal progress of the detection work. Summary of the Utility Model

[0005] In view of the above problems, this application provides a tensile testing device for steel structure detection.

[0006] To achieve the above object, this application provides the following technical solution: A tensile testing device for steel structure detection, including a movable beam that can move up and down, a driving screw rod one that can drive the movable beam to move, and a machine body installed with the driving screw rod one. Positioning structures for positioning the two ends of the steel structure are provided on both the movable beam and the machine body. When the movable beam and the positioning structure distributed upward move upward, tensile force can be applied to the steel structure.

[0007] An anti - detachment structure for restricting the sway of the steel structure is further provided on the machine body. The anti - detachment structure is located above the positioning structure distributed downward. When the two ends of the steel structure are placed into the positioning structure, the steel structure penetrates through the anti - detachment structure.

[0008] Further, the anti - detachment structure includes a support base and two anti - detachment positioning arms symmetrically arranged inside the support base. Contact rollers are provided on the sides of the anti - detachment positioning arms opposite to the steel structure. When the steel structure penetrates through the support base, the two contact rollers are in contact with the front and rear surfaces of the steel structure.

[0009] A pair of central blocks are provided inside the support base. Positioning rods and co - axially distributed first pressure springs are installed on the front and rear sides of the pair of central blocks. The positioning rods all penetrate through the anti - detachment positioning arms, and the ends of the first pressure springs away from the central blocks are connected to the anti - detachment positioning arms.

[0010] Further, two support legs are provided on each support base. Connecting columns perpendicular to the machine body are provided on the support legs. Accommodating trays for receiving the connecting columns are provided on the machine body. Second pressure springs co - axially distributed with the connecting columns are provided at the tops of the accommodating trays, and the tops of the second pressure springs are connected to the support legs of the support base.

[0011] Further, a linkage gear is provided at the bottom end of the first driving screw. A driving gear meshing with the linkage gear is provided on the machine body, and a driving motor for driving the driving gear to rotate is provided on the driving gear.

[0012] The machine body is provided with a pair of first guide rods parallel to the first driving screw. The first guide rods all penetrate through the moving beam. When the first driving screw rotates, the moving beam moves along the distribution direction of the first guide rods.

[0013] Further, the two groups of positioning structures distributed from top to bottom both include positioning seats. Movable fastening plates are provided inside the positioning seats. Driving screws two are provided on the sides of the fastening plates and can rotate. The driving screws two are installed on the positioning seats.

[0014] A pair of second guide rods are provided on each positioning seat. The pair of second guide rods are located on both sides of the driving screw two and penetrate through the fastening plate. When the driving screw two rotates, the fastening plate moves along the distribution direction of the second guide rods.

[0015] In summary, the technical effects and advantages of the present utility model:

[0016] The present utility model is provided with an anti - detachment structure that can accommodate the penetration of the steel structure. When the tensile force applied above the steel structure is too large, the anti - detachment structure can effectively limit the offset state of the steel structure, respond to the moving steel structure, effectively limit the offset angle of the steel structure, avoid the phenomenon that the steel structure detaches from the positioning structure under the condition of excessive tensile force on its own, maintain the stability of the steel structure, and further ensure the safety during the tensile test work process. Description of the Drawings

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the utility model after the machine body is cut open.

[0020] Figure 3 It is a schematic diagram of the structure of the utility model after the machine body is cut open.

[0021] Figure 4 It is a schematic diagram of the position structure of the support seat and the positioning seat of the utility model.

[0022] In the figure: 1. moving beam; 2. driving screw rod 1; 21. linkage gear; 22. driving gear; 23. driving motor; 3. machine body; 31. first guide rod; 4. positioning seat; 5. fastening plate; 6. driving screw rod 2; 7. second guide rod; 8. supporting seat; 81. connecting column; 82. accommodating support; 83. pressure spring 2; 9. anti-slip positioning arm; 10. contact roller; 11. positioning rod; 12. pressure spring 1; 13. center block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] refer to Figures 1-4 The tensile testing device for steel structure inspection shown in the figure comprises a movable beam 1 capable of ascending and descending movement, a driving screw rod 2 capable of driving the movable beam 1 to move, and a body 3 mounted on the driving screw rod 2. The movable beam 1 and the body 3 are both provided with positioning structures for positioning the two ends of the steel structure. When the movable beam 1 and the positioning structures distributed upward move upward, tensile force can be applied to the steel structure. The body 3 can detect the deformation of the steel structure under the action of tensile forces of different magnitudes and judge the tensile strength of the steel structure.

[0026] The machine body 3 is also provided with an anti - detachment structure that can limit the sway of the steel structure. The anti - detachment structure is located above the positioning structure distributed downward. When both ends of the steel structure are placed into the positioning structure, the steel structure penetrates through the anti - detachment structure, which can avoid the phenomenon that the steel structure detaches from the positioning structure when the tensile force it receives is too large, maintaining the stability of the steel structure and further ensuring the safety during the tensile test work process.

[0027] The anti - detachment structure includes a support base 8 and two anti - detachment positioning arms 9 symmetrically arranged inside the support base 8. Contact rollers 10 are provided on the sides of the anti - detachment positioning arms 9 opposite to the steel structure. When the steel structure penetrates through the support base 8, the two contact rollers 10 are in contact with the front and rear surfaces of the steel structure. When the tensile force applied above the steel structure is too large, the contact rollers 10 and the anti - detachment positioning arms 9 can effectively limit the offset state of the steel structure, thereby avoiding the phenomenon that the steel structure detaches from the positioning structure when the tensile force is too large, and further avoiding the spring - out phenomenon of the steel structure, improving the safety during the test process.

[0028] A pair of central blocks 13 are provided inside the support base 8. Positioning rods 11 and compression springs I 12 coaxially distributed with them are installed on the front and rear sides of the pair of central blocks 13. The positioning rods 11 all penetrate through the anti - detachment positioning arms 9, and the ends of the compression springs I 12 far from the central blocks 13 are connected to the anti - detachment positioning arms 9. Under the elastic potential energy of the compression springs I 12, the distance between the pair of anti - detachment positioning arms 9 can be adjusted according to the specifications of the steel structure, thus being applicable to steel structures of different specifications. Moreover, when the two contact rollers 10 are in contact with the front and rear surfaces of the steel structure, the tightness of the connection between the contact rollers 10 and the steel structure can be improved, and the anti - detachment positioning arms 9 and the contact rollers 10 can respond to the moving steel structure in a timely manner, effectively limiting the offset angle of the steel structure.

[0029] Two support feet are provided on the support base 8. Connecting columns 81 perpendicular to the machine body 3 are provided on the support feet. Accommodating trays 82 capable of accommodating the connecting columns 81 are provided on the machine body 3. Compression springs II 83 coaxially distributed with the connecting columns 81 are provided at the tops of the accommodating trays 82, and the tops of the compression springs II 83 are connected to the support feet of the support base 8. When the steel structure is displaced due to the tensile force applied by the moving beam 1 above it and the positioning structure, since the contact rollers 10 are attached to both the front and rear sides of the steel structure, when the steel structure moves upward under the tensile force, the contact rollers 10, the anti - detachment positioning arms 9 and the support base 8 in contact with it move upward synchronously. At this time, the connecting columns 81 move inside the accommodating trays 82, and the compression springs II 83 connected to the support feet are stretched.

[0030] During the upward movement of the support base 8, the support legs, and the connecting column 81, it can effectively buffer the displacement force formed by the tensile force applied to the steel structure, which causes the steel structure to move away from the positioning structure below it. When the tensile force disappears, under the connection of the second compression spring 83, the support base 8, the anti-disengagement positioning arm 9, the contact roller 10, and the steel structure can be quickly reset, further avoiding the phenomenon of the steel structure disengaging from the positioning structure.

[0031] Embodiment 2:

[0032] As Figures 1-4 shown, a linkage gear 21 is provided at the bottom end of the first driving screw 2, and a driving gear 22 meshing with the linkage gear 21 is provided on the machine body 3. When the driving gear 22 rotates, it can mesh with the linkage gear 21 to rotate, so as to achieve the purpose of driving the first driving screw 2 to rotate. A driving motor 23 for driving its rotation is provided on the driving gear 22. The driving motor 23 can provide output power for the operation of the driving gear 22.

[0033] In order to ensure that the moving beam 1 can move smoothly, a pair of first guide rods 31 parallel to the first driving screw 2 are provided on the machine body 3. The first guide rods 31 all penetrate through the moving beam 1. When the first driving screw 2 rotates, the moving beam 1 moves along the distribution direction of the first guide rods 31.

[0034] In order to accommodate the steel structure, the two groups of positioning structures distributed from top to bottom both include a positioning seat 4. A movable fastening plate 5 is provided in each positioning seat 4. A rotatable second driving screw 6 is provided on the side of the fastening plate 5, and the second driving screw 6 is installed on the positioning seat 4. After the steel structure is placed inside the positioning seat 4, the second driving screw 6 can be controlled to rotate, so as to achieve the purpose of driving the fastening plate 5 to move inside the positioning seat 4 until the steel structure is clamped. And because the position of the fastening plate 5 is adjustable, therefore, in actual use, it can be applicable to steel structures of different specifications.

[0035] In order to prevent the fastening plate 5 from shifting during the movement, a pair of second guide rods 7 are provided on each positioning seat 4. The pair of second guide rods 7 are located on both sides of the second driving screw 6, and the second guide rods 7 all penetrate through the fastening plate 5. When the second driving screw 6 rotates, the fastening plate 5 moves along the distribution direction of the second guide rods 7. The stability of the fastening plate 5 during the movement is improved.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tensile testing device for steel structure detection, comprising a movable beam (1) capable of ascending and descending movements, a first driving screw rod (2) capable of driving the movable beam (1) to move, and a machine body (3) installed with the first driving screw rod (2), characterized in that: The moving beam (1) and the machine body (3) are both provided with positioning structures for positioning both ends of the steel structure. When the moving beam (1) and the upwardly distributed positioning structures move upward, tensile force can be applied to the steel structure. The machine body (3) is also provided with an anti - detachment structure that can limit the sway of the steel structure. The anti - detachment structure is located above the downwardly distributed positioning structure. When both ends of the steel structure are placed into the positioning structure, the steel structure penetrates through the anti - detachment structure.

2. The tensile testing device for steel structure detection according to claim 1, wherein: The anti - detachment structure includes a support seat (8) and two anti - detachment positioning arms (9) symmetrically arranged inside the support seat (8). Contact rollers (10) are provided on the sides of the anti - detachment positioning arms (9) opposite to the steel structure. When the steel structure penetrates through the support seat (8), the two contact rollers (10) are in contact with the front and rear surfaces of the steel structure. A pair of central blocks (13) are provided inside the support seat (8). Positioning rods (11) and co - axially distributed first compression springs (12) are installed on the front and rear sides of the pair of central blocks (13). The positioning rods (11) all penetrate through the anti - detachment positioning arms (9), and the ends of the first compression springs (12) away from the central blocks (13) are connected to the anti - detachment positioning arms (9).

3. The tensile testing device for steel structure detection according to claim 2, wherein: Two support feet are provided on the support seat (8). Connecting columns (81) perpendicular to the machine body (3) are provided on the support feet. Accommodating trays (82) capable of accommodating the connecting columns (81) are provided on the machine body (3). Second compression springs (83) co - axially distributed with the connecting columns (81) are provided at the tops of the accommodating trays (82), and the tops of the second compression springs (83) are connected to the support feet of the support seat (8).

4. The tensile testing device for steel structure detection according to claim 1, characterized in that: A linkage gear (21) is provided at the bottom end of the driving screw rod one (2). A driving gear (22) meshing with the linkage gear (21) is provided on the machine body (3), and a driving motor (23) capable of driving it to rotate is provided on the driving gear (22). The machine body (3) is provided with a pair of first guide rods (31) parallel to the driving screw rod one (2). The first guide rods (31) all penetrate through the moving beam (1). When the driving screw rod one (2) rotates, the moving beam (1) moves along the distribution direction of the first guide rods (31).

5. The tensile testing device for steel structure detection according to claim 1, wherein: The two groups of the above - down - distributed positioning structures both include positioning seats (4). Movable fastening plates (5) are provided inside the positioning seats (4). Driving screw rods two (6) that can rotate are provided on the sides of the fastening plates (5), and the driving screw rods two (6) are installed on the positioning seats (4). A pair of second guide rods (7) are provided on the positioning seats (4). The pair of second guide rods (7) are located on both sides of the driving screw rod two (6), and the second guide rods (7) all penetrate through the fastening plates (5). When the driving screw rod two (6) rotates, the fastening plates (5) move along the distribution direction of the second guide rods (7).

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