Steel strand stretching detection device capable of sampling in wide range

Abstract

The utility model provides a steel strand stretching detection device capable of wide sampling, which comprises a bottom plate, a stretching assembly used for fixing and stretching a steel strand is arranged above the bottom plate, the stretching assembly comprises a group of fixing plates arranged on the upper surface of the bottom plate, one side surfaces, close to each other, of the two fixing plates are fixedly connected with wedge-shaped frames, and the wedge-shaped frames are fixedly connected with the bottom plate. A group of wedge-shaped blocks are arranged in each wedge-shaped frame, and a width sampling assembly used for detecting the stretching diameter of the steel strand in real time is arranged above the bottom plate. Through the cooperation of the stretching assembly and the width sampling assembly, the stretching assembly can be used for stretching the steel strand, meanwhile, the laser diameter measuring instruments at all positions outside the steel strand can detect the real-time diameter change conditions of multiple points in the stretching process of the steel strand, and the size data of the multiple points in the width direction of the steel strand can be obtained; and therefore, the overall quality condition of steel strand detection can be guaranteed in all directions.

Description

Technical Field

[0001] This utility model relates to the technical field of steel strand testing equipment, and in particular to a steel strand tensile testing device capable of wide-width sampling. Background Technology

[0002] As an important load-bearing material widely used in building structures, bridge engineering, power transmission and other fields, the tensile properties of steel strands are directly related to the safety and stability of engineering structures. In actual use, steel strands need to withstand huge tensile forces. Therefore, it is essential to accurately test their tensile properties before production and use.

[0003] When constructing large-scale engineering bridges, the required steel strands are of large length and diameter, and the performance consistency requirements of different parts are extremely high. Therefore, it is necessary to conduct wide-span sampling tests on the steel strands. However, existing testing devices cannot meet the wide-span sampling requirements of the steel strands, which will affect the comprehensive test results when the steel strands are stretched, and thus fail to detect the overall quality of the steel strands. To address this, we provide a steel strand tensile testing device that can perform wide-span sampling. Utility Model Content

[0004] This invention provides a steel strand tensile testing device capable of wide-range sampling to solve the technical problems existing in the background art.

[0005] The purpose and effectiveness of this utility model for a wide-sampling steel strand tensile testing device are achieved by the following specific technical means: A wide-sampling steel strand tensile testing device includes a base plate. A tensile assembly for fixing and stretching the steel strand is arranged above the base plate. The tensile assembly includes a set of fixing plates arranged on the upper surface of the base plate. Wedge frames are fixedly connected to the sides of the two fixing plates that are close to each other. A set of wedge blocks is arranged inside each wedge frame. A wide-sampling assembly for real-time diameter detection of the stretched steel strand is arranged above the base plate. The wide-sampling assembly includes a set of laser diameter gauges arranged above the base plate and an adjustment structure arranged above the base plate for adjusting the height of the laser diameter gauges. A protective assembly is arranged outside the tensile assembly.

[0006] Preferably, a set of electric push rods is installed on the side of each of the two fixed plates that are close to each other, and a push plate is installed on the telescopic end of each set of electric push rods. The side of the two push plates that are close to each other is in contact with the side of the two sets of wedge blocks that are far apart from each other.

[0007] Preferably, a set of hydraulic push rods is installed on the upper surface of one of the two fixed plates, and the telescopic end of each hydraulic push rod is connected to the bottom surface of the other fixed plate.

[0008] Preferably, each of the push plates has a connecting groove on its upper surface, and a T-shaped plate is slidably connected to the inner wall of each connecting groove. The ends of the two sets of T-shaped plates that are close to each other are respectively connected to the sides of the two sets of wedge blocks that are far apart from each other.

[0009] Preferably, the adjustment structure of the wide-span sampling component includes a threaded rod fixedly connected to the upper surface of the base plate, a set of movable plates slidably connected to the outside of the threaded rod, the front end of each movable plate being connected to the laser diameter gauge, and a set of nuts threadedly connected to the outer surface of the threaded rod.

[0010] Preferably, a positioning frame is slidably connected to a group of the movable plates, the bottom end of the positioning frame is connected to the upper surface of the base plate, and the bottom surface of the top end of the positioning frame is connected to the top end of the threaded rod.

[0011] Preferably, the protective component includes a protective frame fixedly connected to the upper surface of the base plate, and a set of ventilation slots are provided on both the left and right sides of the protective frame.

[0012] Preferably, the protective frame has a first opening door on the front and a second opening door on the back.

[0013] Beneficial effects:

[0014] By combining the tensioning component with the wide-width sampling component, the tensioning component can be used to stretch the steel strand. At the same time, laser diameter gauges at various locations on the outside of the steel strand will detect the real-time diameter changes at multiple points during the stretching process, thus obtaining dimensional data of the steel strand in the wide-width direction at multiple points, thereby comprehensively ensuring the overall quality of the steel strand inspection.

[0015] The protective components provide shielding and protection to prevent accidental injury to operators from broken steel strands. The threaded rod and nut work together, and rotating the nut adjusts its position on the threaded rod, thereby adjusting the height of the laser diameter gauge and enabling it to detect different points on the steel strand. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the base plate of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the tension component of this utility model.

[0019] Figure 4 This is an exploded structural diagram of the wedge-shaped frame of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the wide-span sampling component of this utility model.

[0021] Figure 6 This is a three-dimensional structural schematic diagram of the protective frame of this utility model, shown in the side sectional view.

[0022] Figure 1-6 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Base plate; 2. Tensioning assembly; 201. Fixing plate; 202. Wedge frame; 203. Wedge block; 204. Electric push rod; 205. Push plate; 206. Hydraulic push rod; 207. Connecting groove; 208. T-shaped plate; 3. Wide-width sampling assembly; 301. Laser diameter gauge; 302. Threaded rod; 303. Moving plate; 304. Nut; 305. Positioning frame; 4. Protective assembly; 401. Protective frame; 402. First opening and closing door; 403. Second opening and closing door. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1 To be continued Figure 4 As shown: A steel strand tensile testing device capable of wide-span sampling includes a base plate 1. A tensile assembly 2 for fixing and tensile the steel strand is disposed above the base plate 1. The tensile assembly 2 includes a set of fixing plates 201 disposed on the upper surface of the base plate 1. Wedge-shaped frames 202 are fixedly connected to the sides of the two fixing plates 201 that are close to each other. Each wedge-shaped frame 202 contains a set of wedge-shaped blocks 203. A set of electric push rods 204 are installed on the sides of the two fixing plates 201 that are close to each other. A push plate 205 is commonly installed at the telescopic end of each set of electric push rods 204. The two push plates 205... The sides of the two sets of wedge blocks 203 that are close to each other contact the sides of the two sets of wedge blocks 203 that are far apart from each other. The extension of the electric push rod 204 can push the wedge blocks 203 to move inside the wedge frame 202, so that the wedge blocks 203 will come closer to each other to form a clamping of the steel strand. A set of hydraulic push rods 206 is installed on the upper surface of one of the two fixing plates 201. The telescopic end of each hydraulic push rod 206 is connected to the bottom surface of the other fixing plate 201. The extension of the hydraulic push rod 206 can push one end of the fixed steel strand to move, thereby completing the stretching of the steel strand.

[0026] As attached Figure 4 As shown: Each push plate 205 has a connecting groove 207 on its upper surface. A T-shaped plate 208 is slidably connected to the inner wall of each connecting groove 207. The ends of the two sets of T-shaped plates 208 that are close to each other are respectively connected to the sides of the two sets of wedge blocks 203 that are far apart. By using the cooperation of the connecting groove 207 and the T-shaped plate 208, the wedge block 203 and the push plate 205 can be connected. When the push plate 205 lifts the wedge block 203 into the wedge frame 202, the T-shaped plate 208 will slide inside the connecting groove 207. When the push plate 205 moves away from the wedge frame 202, the T-shaped plate 208 will pull the wedge block 203 out of the wedge frame 202, thus avoiding problems such as the wedge block 203 sticking or getting stuck with the wedge frame 202 due to long-term use.

[0027] As attached Figure 2 With appendix Figure 5 As shown: A wide sampling component 3 for real-time diameter detection of steel strand is provided above the base plate 1. The wide sampling component 3 includes a set of laser diameter gauges 301 set above the base plate 1. The laser diameter gauges 301 can monitor the diameter change of the steel strand in real time, thereby obtaining the dimensional data of the steel strand in the wide direction at multiple points, and thus being able to determine the overall quality status of the steel strand.

[0028] As attached Figure 2 With appendix Figure 5 As shown: An adjustment structure for adjusting the height of the laser diameter gauge 301 is set above the base plate 1. The adjustment structure of the wide-sampling component 3 includes a threaded rod 302 fixedly connected to the upper surface of the base plate 1. A set of movable plates 303 are slidably connected to the outside of the threaded rod 302. The front end of each movable plate 303 is connected to the laser diameter gauge 301. A set of nuts 304 are threadedly connected to the outer surface of the threaded rod 302. Rotating the nuts 304 can adjust their position on the threaded rod 302. The nuts 304 can provide support for the laser diameter gauge 301 at any height, thereby adjusting its height. The height of the laser diameter gauge 301 was adjusted so that it could detect different points on the steel strand. A positioning frame 305 was slidably connected to a set of moving plates 303. The bottom end of the positioning frame 305 was connected to the upper surface of the base plate 1, and the bottom surface of the top of the positioning frame 305 was connected to the top of the threaded rod 302. The positioning frame 305 could stabilize the moving plates 303, thereby improving the stability of the laser diameter gauge 301. This ensured that the center vertical line of the steel strand was aligned with the measuring beam of the laser diameter gauge 301, thus ensuring the accuracy of the detection data.

[0029] As attached Figure 1 With appendix Figure 6As shown: The tensioning assembly 2 is provided with a protective assembly 4 on its exterior. The protective assembly 4 includes a protective frame 401 fixedly connected to the upper surface of the base plate 1. Both the left and right sides of the protective frame 401 are provided with a set of ventilation slots. The protective frame 401 can resist the strong impact force generated when the steel strand suddenly breaks in extreme cases, effectively preventing the broken steel strand fragments from flying out and causing serious accidental injury to the surrounding operators. The front of the protective frame 401 is provided with a first opening door 402, and the back of the protective frame 401 is provided with a second opening door 403. The first opening door 402 allows the operator to easily fix the steel strand, and the second opening door 403 allows the operator to easily adjust the height of the nut 304.

[0030] Working principle: When in use, one end of the steel strand is placed inside the wedge frame 202 and positioned between two wedge blocks 203. Then, the electric push rod 204 is extended, and the push plate 205 pushes the wedge blocks 203 to move inside the wedge frame 202. The two wedge blocks 203 then move closer together to clamp the steel strand. The above steps are repeated to fix the other end of the steel strand and align the center vertical line of the steel strand with the measuring beam of the laser diameter gauge 301. Then, the hydraulic push rod 206 is extended, which pushes the upper wedge block 203 upward. At the same time, the wedge block 203 causes the steel strand to gradually stretch. The laser diameter gauge 301 monitors the diameter change of the steel strand in real time, thereby obtaining the dimensional data of the steel strand in the width direction at multiple points, and thus determining the overall quality status of the steel strand.

Claims

1. A wide spannable steel strand tension detection device comprising a base plate, characterized in that: Above the base plate is a tensioning assembly for fixing and stretching the steel strand. The tensioning assembly includes a set of fixing plates on the upper surface of the base plate. Two wedge frames are fixedly connected to each other on their adjacent sides. Each wedge frame contains a set of wedge blocks. Above the base plate is a wide-sampling assembly for real-time diameter detection of the stretched steel strand. The wide-sampling assembly includes a set of laser diameter gauges above the base plate and an adjustment structure above the base plate for adjusting the height of the laser diameter gauges. A protective assembly is provided on the outside of the tensioning assembly.

2. A wide-bay samplable steel strand tension detection device according to claim 1, characterized in that: Each of the two fixed plates has a set of electric push rods installed on its side that is close to each other. The telescopic end of each set of electric push rods is equipped with a push plate. The side of the two push plates that is close to each other is in contact with the side of the two sets of wedge blocks that are far apart from each other.

3. The wide-bay samplable steel strand tension detection device of claim 1, wherein: One of the two fixed plates has a set of hydraulic push rods mounted on its upper surface, and the telescopic end of each hydraulic push rod is connected to the bottom surface of the other fixed plate.

4. The wide-bay samplable steel strand tension detection device of claim 2, wherein: Each push plate has a connecting groove on its upper surface, and a T-shaped plate is slidably connected to the inner wall of each connecting groove. The ends of the two sets of T-shaped plates that are close to each other are respectively connected to the sides of the two sets of wedge blocks that are far apart from each other.

5. The wide-bay samplable steel strand tension detection device of claim 1, wherein: The adjustment structure of the wide-span sampling component includes a threaded rod fixedly connected to the upper surface of the base plate. A set of movable plates are slidably connected to the outside of the threaded rod. The front end of each movable plate is connected to the laser diameter gauge. A set of nuts are threadedly connected to the outer surface of the threaded rod.

6. A wide-bay samplable steel strand tension detection device according to claim 5, characterized in that: A positioning frame is slidably connected to a set of the movable plates. The bottom end of the positioning frame is connected to the upper surface of the base plate, and the bottom surface of the top of the positioning frame is connected to the top end of the threaded rod.

7. The steel strand tensile testing device capable of wide-width sampling according to claim 1, characterized in that: The protective component includes a protective frame fixedly connected to the upper surface of the base plate, and a set of ventilation slots are provided on both the left and right sides of the protective frame.

8. A wide-bay samplable steel strand tension detection device according to claim 7, characterized in that: The protective frame has a first opening door on the front and a second opening door on the back.

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