A galvanized steel strand performance detection equipment

Abstract

The application provides a galvanized steel strand performance detection equipment, and belongs to the technical field of steel strand detection, which comprises a detection table, clamping assemblies, a driving assembly and elastic buffer assemblies. The clamping assemblies are provided in two groups, and the two groups of clamping assemblies are used for clamping the two ends of the steel strand respectively. One of the clamping assemblies is a movable clamping assembly, and the other is a fixed clamping assembly. The movable clamping assembly and the fixed clamping assembly are respectively installed at the two ends of the upper part of the detection table, and the driving assembly is arranged on the upper part of the detection table. Compared with the prior art, the elastic buffer assemblies can buffer the rebounding steel strand when the steel strand is disconnected and rebounded, thereby reducing kinetic energy and providing protection for the staff and the detection equipment, and thus the safety during the tensile detection of the steel strand is improved.

Description

Technical Field

[0001] This invention belongs to the field of steel strand testing technology, specifically a performance testing device for galvanized steel strand. Background Technology

[0002] Galvanized steel strand is a special type of high-strength and high-toughness steel strand, mainly used in infrastructure projects such as long-span bridges, high-rise buildings, and dams. After production, in order to ensure the quality of galvanized steel strand, performance testing equipment is required to test the performance of the steel strand.

[0003] Currently, when performing performance testing on galvanized steel strands, a tensioning mechanism is used to apply tension to the strands until they break. The magnitude of the tension is recorded when the strands break to determine whether their tensile strength meets the requirements. However, when the steel strands break under tension, they carry enormous kinetic energy and spring back in the opposite direction, which is uncontrollable and can easily injure workers and damage the testing equipment. Therefore, the existing technology poses significant safety hazards when performing performance testing on steel strands and urgently needs improvement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a galvanized steel strand performance testing device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A performance testing device for galvanized steel strand includes a testing table, a clamping assembly, a driving assembly, and an elastic buffer assembly.

[0007] The clamping assembly is provided in two sets, which are used to clamp both ends of the steel strand respectively.

[0008] One set of clamping components is a movable clamping component, and the other set of clamping components is a fixed clamping component. The movable clamping component and the fixed clamping component are respectively installed at both ends of the upper part of the detection table.

[0009] The drive assembly is disposed on the upper part of the detection table and is used to drive the movable clamping assembly to move away from the fixed clamping assembly in order to apply tension to the steel strand.

[0010] The elastic buffer assembly is provided in several groups, and several of the elastic buffer assemblies are disposed between the movable clamping assembly and the fixed clamping assembly. When the steel strand breaks under tension, the elastic buffer assembly is used to buffer the rebound kinetic energy of the steel strand.

[0011] As a further improvement of the present invention: the plurality of said elastic buffer components include a first arc-shaped outer plate, an elastic element, an arc-shaped inner plate, and a second arc-shaped outer plate.

[0012] The bottom of the first arc-shaped outer plate is fixedly connected to the upper part of the testing platform via a support. The second arc-shaped outer plate is rotatably disposed at one end of the first arc-shaped outer plate. The inner walls of the first arc-shaped outer plate and the second arc-shaped outer plate are both connected to a set of arc-shaped inner plates via a plurality of elastic elements. The elastic elements are used to provide elastic support for the arc-shaped inner plates.

[0013] As a further improvement of the present invention: an arc-shaped end plate is fixedly provided at one end of the first arc-shaped outer plate, and an arc-shaped groove is formed in the arc-shaped end plate; an arc-shaped guide rail that cooperates with the arc-shaped groove is fixedly provided at one end of the second arc-shaped outer plate.

[0014] The first arc-shaped outer plate, the arc-shaped end plate, the arc-shaped slide groove, the arc-shaped guide rail, the second arc-shaped outer plate, and the arc-shaped inner plate are all arc-shaped structures.

[0015] As a further improvement of the present invention, anti-slip protrusions are also provided on the inner wall of the arc-shaped inner plate.

[0016] As a further improvement to the present invention: the movable clamping assembly and the fixed clamping assembly have the same structure, both including a first pressure plate, a second pressure plate, a screw sleeve, and a support sleeve.

[0017] The support sleeve has a threaded section on its exterior and a slot on its outer wall. The first pressure plate is fixedly disposed outside the support sleeve. The threaded sleeve is movably sleeved outside the support sleeve and threadedly engaged with the threaded section. The second pressure plate is fixedly disposed outside the threaded sleeve.

[0018] The support sleeve corresponding to the movable clamping assembly is slidably installed on the upper part of the testing platform, and the support sleeve corresponding to the fixed clamping assembly is fixedly installed on the upper part of the testing platform.

[0019] As a further improvement of the present invention: a slide block is fixedly provided at the bottom of the support sleeve corresponding to the movable clamping assembly, and a linear guide rail is fixedly installed on the upper part of the detection platform, with the slide block and the linear guide rail slidingly engaged.

[0020] As a further improvement of the present invention: the driving assembly includes a hydraulic cylinder and a piston rod.

[0021] The hydraulic cylinder is fixedly installed on the upper part of the testing platform. One end of the piston rod is connected to the output end of the hydraulic cylinder, and the other end is connected to the support sleeve corresponding to the movable clamping assembly.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] Compared with the prior art, the embodiments of the present invention, by setting up several elastic buffer components, can buffer the rebounding steel strand when the steel strand breaks, thereby reducing kinetic energy and providing protection for workers and testing equipment, thus improving the safety of the steel strand tensile testing process. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a galvanized steel strand performance testing device. Figure 1 ;

[0025] Figure 2 A schematic diagram of the structure of a galvanized steel strand performance testing device. Figure 2 ;

[0026] Figure 3 for Figure 1 Enlarged view of region A in the middle;

[0027] Figure 4 for Figure 1 Enlarged view of region B in the middle;

[0028] Figure 5 for Figure 1 Enlarged diagram of region C in the middle;

[0029] In the diagram: 10-Testing table, 101-Linear guide rail, 20-Clamping assembly, 201-First pressure plate, 202-Second pressure plate, 203-Threaded sleeve, 204-Slot, 205-Threaded section, 206-Support sleeve, 207-Slide block, 30-Drive assembly, 301-Hydraulic cylinder, 302-Piston rod, 40-Elastic buffer assembly, 401-First arc-shaped outer plate, 402-Support, 403-Elastic element, 404-Arc-shaped inner plate, 405-Arc-shaped end plate, 406-Arc-shaped guide rail, 407-Second arc-shaped outer plate, 50-Steel strand. Detailed Implementation

[0030] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] Please see Figure 1 as well as Figure 2This embodiment provides a galvanized steel strand performance testing device, including a testing platform 10, a clamping assembly 20, a driving assembly 30, and an elastic buffer assembly 40. The clamping assembly 20 has two sets, each used to clamp both ends of the steel strand 50. One set of clamping assemblies 20 is a movable clamping assembly, and the other set is a fixed clamping assembly. The movable and fixed clamping assemblies are respectively installed at both ends of the upper part of the testing platform 10. The driving assembly 30 is located on the upper part of the testing platform 10 and is used to drive the movable clamping assembly to move away from the fixed clamping assembly, thereby applying tension to the steel strand 50. Several sets of elastic buffer assemblies 40 are provided, positioned between the movable and fixed clamping assemblies. When the steel strand 50 breaks under tension, the elastic buffer assembly 40 buffers the rebound kinetic energy of the steel strand 50.

[0033] When testing the tensile properties of the steel strand 50, the steel strand 50 to be tested can be placed on the upper part of the testing table 10, and the two ends of the steel strand 50 can be clamped by the movable clamping assembly and the fixed clamping assembly respectively. Then, the drive assembly 30 drives the movable clamping assembly to move away from the fixed clamping assembly. When the movable clamping assembly moves, it applies a tensile force to the steel strand 50. When the steel strand 50 is stretched to its limit and breaks, the tensile force currently applied to the steel strand 50 is recorded, thus completing the test. Tensile strength testing of steel strand 50: When steel strand 50 is broken, the broken steel strand 50 will rebound violently. The rebounding steel strand 50 carries huge kinetic energy and is flung in all directions, which can easily injure personnel and damage testing equipment. Based on this, by setting up several elastic buffer components 40, the rebounding steel strand 50 can be buffered when it breaks, thereby reducing kinetic energy and providing protection for personnel and testing equipment, thereby improving the safety of the tensile strength testing process of steel strand 50.

[0034] Please see Figure 3 as well as Figure 4 In one embodiment, the plurality of elastic buffer components 40 include a first arc-shaped outer plate 401, an elastic element 403, an arc-shaped inner plate 404, and a second arc-shaped outer plate 407. The bottom of the first arc-shaped outer plate 401 is fixedly connected to the upper part of the detection table 10 through a support 402. The second arc-shaped outer plate 407 is rotatably disposed at one end of the first arc-shaped outer plate 401. The inner walls of the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407 are each connected to a set of arc-shaped inner plates 404 through the plurality of elastic elements 403. The elastic elements 403 are used to provide elastic support for the arc-shaped inner plates 404.

[0035] Initially, the openings of the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407 corresponding to the elastic buffer components 40 all face upwards. The openings of the two sets of arc-shaped inner plates 404 are in communication with the openings of the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407. After placing the steel strand 50 to be tested above the testing table 10, the steel strand 50 can be placed inside the inner arc-shaped plate 404 through the openings of the first arc-shaped outer plate 401, the second arc-shaped outer plate 407, and the arc-shaped inner plate 404 (e.g., ...). Figure 3 As shown), the steel strand 50 passes through the inside of the arc-shaped inner plate 404, and is then clamped at both ends by a movable clamping assembly and a fixed clamping assembly. Subsequently, the second arc-shaped outer plate 407 is rotated 180° relative to the first arc-shaped outer plate 401, so that the opening of the second arc-shaped outer plate 407 faces downwards. When the second arc-shaped outer plate 407 rotates 180°, it causes the arc-shaped inner plate 404 inside it to rotate 180°, and the opening of the arc-shaped inner plate 404 also faces downwards. Meanwhile, the first arc-shaped outer plate 401... The opening of the arc-shaped inner plate 404 still faces upwards. At this time, the two sets of arc-shaped inner plates 404 completely cover the steel strand 50 on the outside. After the second arc-shaped outer plate 407 corresponding to the elastic buffer components 40 rotates 180°, the drive component 30 drives the movable clamping component to move away from the fixed clamping component, thereby applying tension to the steel strand, causing the steel strand to break. When the steel strand breaks and rebounds, it will rebound in a spiral or curved shape. At this time, the steel strand will rebound in any lateral direction. The displacement of the steel strand 50, when it moves laterally, acts on the inner walls of the two sets of arc-shaped inner plates 404. Through the elastic support of the elastic element 403 on the arc-shaped inner plates 404, the force exerted by the steel strand 50 on the arc-shaped inner plates 404 is buffered, thereby reducing the rebound kinetic energy of the steel strand 50. Furthermore, after the second arc-shaped outer plate 407 rotates 180° relative to the first arc-shaped outer plate 401, the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407 can be located outside the steel strand 50. Similarly, the steel strand 50 is completely covered. At this time, the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407 form a complete cylindrical structure around the outside of the steel strand 50. In this way, when the steel strand 50 breaks and its kinetic energy is reduced by the two sets of arc-shaped inner plates 40, the broken steel strand 50 can be confined inside the cylindrical structure formed by the first arc-shaped outer plate 401 and the second arc-shaped outer plate 407, thereby preventing the broken steel strand 50 from generating large lateral displacement and further improving the safety and protection of personnel and testing equipment.

[0036] Please see Figure 3 as well as Figure 4In one embodiment, an arc-shaped end plate 405 is fixedly provided at one end of the first arc-shaped outer plate 401, and an arc-shaped groove is provided in the arc-shaped end plate 405. An arc-shaped guide rail 406 that cooperates with the arc-shaped groove is fixedly provided at one end of the second arc-shaped outer plate 407. The first arc-shaped outer plate 401, the arc-shaped end plate 405, the arc-shaped groove, the arc-shaped guide rail 406, the second arc-shaped outer plate 407, and the arc-shaped inner plate 404 are all arc-shaped structures.

[0037] When the two sets of arc-shaped inner plates 404 completely cover the steel strand 50 on the outside, since both sets of arc-shaped inner plates 404 are of superior arc structure, the two sets of arc-shaped inner plates 404, together with the elastic element 403, can smoothly reduce the displacement energy of the broken steel strand 50 in any direction; when the second arc-shaped outer plate 407 rotates 180° relative to the first arc-shaped outer plate 401, since the arc-shaped groove and the arc-shaped guide rail 406 are of superior arc structure, the arc-shaped guide rail 406 will not detach from the arc-shaped groove as a whole, thus ensuring that the second arc-shaped outer plate 407 and the first arc-shaped outer plate 401 will not detach.

[0038] In one embodiment, the elastic element 403 can be a spring or a metal sheet, and there is no limitation on this.

[0039] In one embodiment, the inner wall of the arc-shaped inner plate 404 is also provided with anti-slip protrusions. When the broken steel strand 50 rebounds and acts on the inner wall of the arc-shaped inner plate 404, the anti-slip protrusions can increase the friction between the steel strand and the arc-shaped inner plate 404, thereby reducing the rebound phenomenon of the steel strand 50.

[0040] Please see Figure 5 In one embodiment, the movable clamping assembly and the fixed clamping assembly have the same structure, both including a first pressure plate 201, a second pressure plate 202, a threaded sleeve 203, and a support sleeve 206. The support sleeve 206 has a threaded section 205 on its exterior and a slot 204 on its outer wall. The first pressure plate 201 is fixedly disposed outside the support sleeve 206. The threaded sleeve 203 is movably sleeved outside the support sleeve 206 and threadedly engaged with the threaded section 205. The second pressure plate 202 is fixedly disposed outside the threaded sleeve 203. The support sleeve 206 corresponding to the movable clamping assembly is slidably mounted on the upper part of the testing table 10, and the support sleeve 206 corresponding to the fixed clamping assembly is fixedly mounted on the upper part of the testing table 10.

[0041] After the steel strand 50 to be tested passes through the inner side of the arc-shaped inner plate 404, the operator inserts one end of the steel strand 50 into the support sleeve 206 corresponding to the movable clamping assembly. Then, one end of the steel strand 50 is pulled out from the slot 204 on the side wall of the support sleeve 206. Next, one end of the steel strand 50 is coiled several times around the outside of the support sleeve 206. Then, the rotating screw sleeve 203 outside the support sleeve 206 rotates. When the screw sleeve 203 rotates, it drives the second pressure plate 202 towards the first pressure plate 201 through the threaded engagement with the threaded section 205, thereby pressing the coiled steel strand 50 against the side wall of the first pressure plate 201, thus clamping one end of the steel strand 50. After one end of the steel strand 50 is clamped, the other end of the steel strand 50 is inserted into the support sleeve 206 corresponding to the fixed clamping assembly. The steel strand 50 is pulled out from the slot 204 on the side wall of the support sleeve 206, and then one end of the steel strand 50 is coiled around the outside of the support sleeve 206 several times. Then the threaded sleeve 203 on the outside of the support sleeve 206 is rotated. When the threaded sleeve 203 rotates, it drives the second pressure plate 202 to move towards the first pressure plate 201 through the threaded engagement with the threaded section 205. This presses the coiled steel strand 50 against the side wall of the first pressure plate 201, thereby clamping the other end of the steel strand 50. After both ends of the steel strand 50 are clamped, the drive component 30 drives the support sleeve 206 corresponding to the movable clamping component to move away from the support sleeve 206 corresponding to the fixed clamping component, thereby applying tension to the steel strand 50.

[0042] Please see Figure 5 In one embodiment, a slide block 207 is fixedly provided at the bottom of the support sleeve 206 corresponding to the movable clamping assembly, and a linear guide rail 101 is fixedly installed on the upper part of the detection table 10, with the slide block 207 slidingly engaging with the linear guide rail 101.

[0043] Please see Figure 5 In one embodiment, the drive assembly 30 includes a hydraulic cylinder 301 and a piston rod 302. The hydraulic cylinder 301 is fixedly installed on the upper part of the testing table 10. One end of the piston rod 302 is connected to the output end of the hydraulic cylinder 301, and the other end is connected to the support sleeve 206 corresponding to the movable clamping assembly.

[0044] After the two ends of the steel strand 50 are clamped, the hydraulic cylinder 301 is activated. The hydraulic cylinder 301 drives the piston rod 301 to retract, and the piston rod 301 pulls the support sleeve 206 corresponding to the movable clamping assembly to move away from the support sleeve 206 corresponding to the fixed clamping assembly, thereby applying tension to the steel strand 50.

[0045] Compared with the prior art, the embodiments of the present invention, by setting a number of elastic buffer components 40, can buffer the rebounding steel strand when the steel strand 50 breaks, thereby reducing kinetic energy, providing protection for workers and testing equipment, and thus improving the safety of the tensile testing process of the steel strand 50.

[0046] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A performance testing device for galvanized steel strand, characterized in that, Includes a testing stage, clamping components, drive components, and elastic buffer components. The clamping assembly is provided in two sets, which are used to clamp both ends of the steel strand respectively. One set of clamping components is a movable clamping component, and the other set of clamping components is a fixed clamping component. The movable clamping component and the fixed clamping component are respectively installed at both ends of the upper part of the detection table. The drive assembly is disposed on the upper part of the detection table and is used to drive the movable clamping assembly to move away from the fixed clamping assembly in order to apply tension to the steel strand. The elastic buffer assembly is provided in several groups, and several of the elastic buffer assemblies are disposed between the movable clamping assembly and the fixed clamping assembly. When the steel strand breaks under tension, the elastic buffer assembly is used to buffer the rebound kinetic energy of the steel strand.

2. The galvanized steel strand performance testing equipment according to claim 1, characterized in that, Several of the aforementioned elastic cushioning components include a first arc-shaped outer plate, an elastic element, an arc-shaped inner plate, and a second arc-shaped outer plate. The bottom of the first arc-shaped outer plate is fixedly connected to the upper part of the testing platform via a support. The second arc-shaped outer plate is rotatably disposed at one end of the first arc-shaped outer plate. The inner walls of the first arc-shaped outer plate and the second arc-shaped outer plate are both connected to a set of arc-shaped inner plates via a plurality of elastic elements. The elastic elements are used to provide elastic support for the arc-shaped inner plates.

3. The galvanized steel strand performance testing equipment according to claim 2, characterized in that, An arc-shaped end plate is fixedly provided at one end of the first arc-shaped outer plate, and an arc-shaped sliding groove is formed inside the arc-shaped end plate. An arc-shaped guide rail that mates with the arc-shaped sliding groove is fixedly provided at one end of the second arc-shaped outer plate. The first arc-shaped outer plate, the arc-shaped end plate, the arc-shaped slide groove, the arc-shaped guide rail, the second arc-shaped outer plate, and the arc-shaped inner plate are all arc-shaped structures.

4. The galvanized steel strand performance testing equipment according to claim 2, characterized in that, The inner wall of the arc-shaped inner plate is also provided with anti-slip protrusions.

5. The galvanized steel strand performance testing equipment according to claim 1, characterized in that, The movable clamping assembly and the fixed clamping assembly have the same structure, both including a first pressure plate, a second pressure plate, a threaded sleeve, and a support sleeve. The support sleeve has a threaded section on its exterior and a slot on its outer wall. The first pressure plate is fixedly disposed outside the support sleeve. The threaded sleeve is movably sleeved outside the support sleeve and threadedly engaged with the threaded section. The second pressure plate is fixedly disposed outside the threaded sleeve. The support sleeve corresponding to the movable clamping assembly is slidably mounted on the upper part of the testing platform, and the support sleeve corresponding to the fixed clamping assembly is fixedly mounted on the upper part of the testing platform.

6. The galvanized steel strand performance testing equipment according to claim 5, characterized in that, The bottom of the support sleeve corresponding to the movable clamping assembly is fixedly provided with a slide block, and the upper part of the detection platform is fixedly installed with a linear guide rail, and the slide block and the linear guide rail are slidably engaged.

7. The galvanized steel strand performance testing equipment according to claim 5, characterized in that, The drive assembly includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is fixedly installed on the upper part of the testing platform. One end of the piston rod is connected to the output end of the hydraulic cylinder, and the other end is connected to the support sleeve corresponding to the movable clamping assembly.

Images