Testing device for large-diameter high-strength steel wire

Abstract

The utility model belongs to the technical field of tension testing, and particularly relates to a large-diameter high-strength steel wire testing device which comprises a base, and a pair of shells are fixedly connected to the top of the base. The inner wall of the shell is rotationally connected with a rotating shaft; a rolling wheel is fixedly connected to the middle of the rotating shaft; a pair of first round holes are formed in the side wall of the shell; a test steel wire is arranged in the first round hole; the first round hole is in sliding fit with the test steel wire; the side wall of the rotating shaft is fixedly connected with a fixed box; the side wall of the fixed box is slidably connected with a pair of pull rods and is arranged in a penetrating manner; the end part of the pull rod is fixedly connected with an arc-shaped plate; the surface of the arc-shaped plate is fixedly connected with a spring; the inner wall of the fixed box is fixedly connected with a spring; a second round hole is formed in the surface of the fixed box; the spring is matched with the pull rod, so that the convenience can be improved, the end part of the test steel wire can be fixed by pulling and releasing when the end part of the test steel wire is fixed, the fixing work of the test steel wire can be quickly completed, and the fixing work time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile testing, in particular to a testing device for large-diameter high-strength steel wires. Background Art

[0002] Large-diameter high-strength steel wires have remarkable characteristics and wide applications. The large diameter makes them more advantageous when bearing tensile and compressive forces, and can meet the requirements of large-scale engineering structures. The high strength is manifested in high tensile strength and yield strength, and they can withstand huge external forces without breaking or plastic deformation, improving the safety and reliability of the project.

[0003] Before the use of large-diameter high-strength steel wires, various tests such as tensile tests, bending tests, and torsion tests need to be carried out. Among them, the tensile test is crucial to ensure that the surface of the steel wire is smooth without defects such as cracks, scratches, and rust, because the appearance quality not only affects the aesthetics but also relates to the performance and service life.

[0004] When the tensile test device for steel wires is in use, the steel wire is fixed by extrusion. When the tensile force is too large, the steel wire will slide, which will lead to inaccurate test results and it is difficult to truly reflect the tensile strength of the steel wire.

[0005] Therefore, a testing device for large-diameter high-strength steel wires is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A testing device for large-diameter high-strength steel wires of the utility model includes a base, and a pair of outer shells are fixedly connected to the top of the base; a rotating shaft is rotatably connected to the inner wall of the outer shell; a reel is fixedly connected to the middle of the rotating shaft; a pair of first round holes are opened on the side wall of the outer shell; a test steel wire is arranged inside the first round hole; the first round hole and the test steel wire are in sliding fit; a fixed box is fixedly connected to the side wall of the rotating shaft; a pair of pull rods are slidably connected to the side wall of the fixed box and are arranged through; an arc-shaped plate is fixedly connected to the end of the pull rod; a spring is fixedly connected to the surface of the arc-shaped plate; a spring is fixedly connected to the inner wall of the fixed box; a second round hole is opened on the surface of the fixed box; Using the spring in cooperation with the pull rod can increase the convenience, so that when fixing the end of the test steel wire, it can be fixed by pulling and releasing once, and the fixing work of the test steel wire can be completed quickly, reducing the fixing work time. After fixing the end of the wound test steel wire, the phenomenon of loosening of the test steel wire during the winding process can be prevented, the winding stability of the test steel wire is increased, so that the test steel wire is not easy to slide during the tensile test, and the accuracy rate of the test result is increased.

[0008] Preferably, a plurality of insertion rods are provided on the surface of the pull rod; a third round hole is arranged inside the insertion rod; the third round hole and the insertion rod are correspondingly arranged; by using the cooperation of the third round hole and the insertion rod, it can be realized that after pulling the pull rod to a certain position, it can be fixed and will not loosen and reset, and then taking out or putting in the test wire can increase the convenience.

[0009] Preferably, a fixing block is fixedly connected to the bottom of the arc-shaped plate; a plurality of the fixing blocks are arranged on the arc-shaped plate; the fixing blocks are used to fit the surface of the test wire, and due to the inclined installation, the staggered contact will enhance the stability of fixing the test wire.

[0010] Preferably, a fixing ball is fixedly connected to the bottom of the fixing block; a plurality of the fixing balls are arranged on the fixing block; arranging the fixing balls on the fixing block can send the fixing balls into the depth while the fixing block enters the gap, so that the fixing balls contact the test wire, increasing the contact area and enhancing the friction force to fix the test wire.

[0011] Preferably, a rotating wheel is rotatably connected to the inner wall of the outer shell; a brush is fixedly connected to the surface of the rotating wheel; a plurality of the brushes are arranged on the rotating wheel; using the rotating wheel to repeatedly clean the test wire can reduce the influence of dust on the test, truly reflect the state of the test wire after the test, and can more clearly observe the surface state of the test wire.

[0012] Preferably, a collection box is fixedly connected to the bottom of the outer shell; the collection box is located below the rotating shaft and the rotating wheel; installing the collection box can reduce the scattered dust during cleaning, reduce the cleaning time due to dust dispersion, and facilitate unified treatment.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the test device for large-diameter high-strength steel wire of the present utility model, using the spring and the pull rod in cooperation can increase the convenience, so that when fixing the end of the test wire, pulling and releasing once can fix the end of the test wire, quickly complete the fixing work of the test wire, reduce the fixing working time, prevent the test wire from loosening during the winding process after fixing the end of the wound test wire, increase the stability of the test wire winding, make the test wire not easy to slide during the tensile test, and increase the accuracy of the test result.

[0015] 2. For the test device for large-diameter high-strength steel wire of the present utility model, by using the cooperation of the third round hole and the insertion rod, it can be realized that after pulling the pull rod to a certain position, it can be fixed and will not loosen and reset, and then taking out or putting in the test wire can increase the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the main body of the present invention;

[0018] Figure 2 Schematic diagram of the structure of the rotating shaft in the present invention;

[0019] Figure 3 Schematic diagram of the structure of the fixed box in the present invention;

[0020] Figure 4 Schematic diagram of the structure of the fixed block in the present invention;

[0021] Figure 5 Schematic diagram of the structure of the fixed ball in the present invention.

[0022] In the figure: 1, base; 11, outer shell; 12, rotating shaft; 13, winding wheel; 14, first round hole; 15, test steel wire; 16, fixed box; 17, pull rod; 18, spring; 19, arc plate; 101, second round hole; 2, third round hole; 21, insertion rod; 3, fixed block; 4, fixed ball; 5, runner; 51, brush hair; 6, collection box. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] The following gives specific embodiments.

[0025] Such as Figures 1 to 5As shown in the figure, a test device for large-diameter high-strength steel wires according to an embodiment of the present utility model includes a base 1, and a pair of outer shells 11 are fixedly connected to the top of the base 1; a rotating shaft 12 is rotatably connected to the inner wall of the outer shell 11; a reel 13 is fixedly connected to the middle of the rotating shaft 12; a pair of first round holes 14 are formed in the side wall of the outer shell 11; a test steel wire 15 is arranged inside the first round hole 14; the first round hole 14 and the test steel wire 15 are in sliding fit; a fixed box 16 is fixedly connected to the side wall of the rotating shaft 12; a pair of pull rods 17 are slidably connected to the side wall of the fixed box 16 and penetrate through it; an arc-shaped plate 19 is fixedly connected to the end of the pull rod 17; a spring 18 is fixedly connected to the surface of the arc-shaped plate 19; the spring 18 is fixedly connected to the inner wall of the fixed box 16; a second round hole 101 is formed in the surface of the fixed box 16; during operation, first insert the test steel wire 15 into the outer shell 11 through the first round hole 14, and then wind the test steel wire 15 around the surface of the reel 13. After winding, pull the pull rod 17. At this time, the pull rod 17 will drive the arc-shaped plate 19 to move together, thus creating space inside the fixed box 16. Then, put the end of the test steel wire 15 into the fixed box 16 through the second round hole 101. When the end of the test steel wire 15 enters the deepest part of the fixed box 16, release the pull rod 17. Due to the elasticity of the spring 18, it will immediately rebound and reset after release, causing the opposite arc-shaped plates 19 to approach the end of the test steel wire 15 and clamp the end of the test steel wire 15. Subsequently, start the motor to rotate the rotating shaft 12 to tighten the test steel wire 15 for tensile testing; the cooperation of the spring 18 and the pull rod 17 can increase convenience, enabling the end of the test steel wire 15 to be fixed with a single pull and release, quickly completing the fixing work of the test steel wire 15, reducing the fixing time. By fixing the end of the wound test steel wire 15, the phenomenon of the test steel wire 15 becoming loose during winding can be prevented, increasing the stability of the winding of the test steel wire 15, making the test steel wire 15 not easy to slide during tensile testing, and increasing the accuracy of the test results.

[0026] As Figures 3 to 4 shown, a plurality of third round holes 2 are formed in the surface of the pull rod 17; a plug rod 21 is arranged inside the third round hole 2; the third round hole 2 and the plug rod 21 are correspondingly arranged; during operation, when it is necessary to fix or release the test steel wire 15, the pull rod 17 needs to be pulled first. However, due to the elasticity of the spring 18, there will be a resilience force, causing the pull rod 17 to immediately return to its original position when released. At this time, the third round hole 2 needs to be inserted into the plug rod 21 for limiting, so that the pull rod 17 will not rebound after release. After the test steel wire 15 is placed, the third round hole 2 is taken out to make the spring 18 rebound and reset; through the cooperation of the third round hole 2 and the plug rod 21, it can be achieved that after pulling the pull rod 17 to a certain position, it can be fixed and will not loosen and reset, which can increase the convenience for taking out or putting in the test steel wire 15.

[0027] As Figure 4As shown, a fixing block 3 is fixedly connected to the bottom of the arc-shaped plate 19; a plurality of fixing blocks 3 are arranged on the arc-shaped plate 19; during operation, when the arc-shaped plate 19 contacts the end of the test wire 15, since the fixing block 3 is inclinedly installed at the bottom of the arc-shaped plate 19, when the end of the test wire 15 enters the fixing box 16, the fixing block 3 will contact the test wire 15 first to fix the test wire 15; the fixing block 3 is used to fit the surface of the test wire 15, and the staggered contact due to the inclined installation will enhance the stability of fixing the test wire 15.

[0028] As Figure 5 shown, a fixing ball 4 is fixedly connected to the bottom of the fixing block 3; a plurality of fixing balls 4 are arranged on the fixing block 3; during operation, when the fixing block 3 contacts the surface of the test wire 15, it will extrude the test wire 15. At this time, the fixing ball 4 is between the fixing block 3 and the test wire 15. At this time, the fixing ball 4 will penetrate into the gap on the surface of the test wire 15 and fit tightly with the test wire 15, thereby increasing the contact area again and increasing the friction force so that the test wire 15 is fixed; setting the fixing ball 4 on the fixing block 3 can send the fixing ball 4 deep into the gap while the fixing block 3 enters the gap, so that the fixing ball 4 contacts the test wire 15, increasing the contact area and enhancing the friction force to fix the test wire 15.

[0029] As Figure 2 shown, a runner 5 is rotatably connected to the inner wall of the outer shell 11; a brush hair 51 is fixedly connected to the surface of the runner 5; a plurality of brush hairs 51 are arranged on the runner 5; during operation, when the rotating shaft 12 rotates, the lower runner 5 will also rotate. At this time, the brush hair 51 will repeatedly clean the dust on the surface of the test wire 15 wound around the reel 13 to help better observe after the test; using the runner 5 to repeatedly clean the test wire 15 can reduce the influence of dust on the test, truly reflect the state of the test wire 15 after the test, and can more clearly observe the surface state of the test wire 15.

[0030] As Figure 2 shown, a collection box 6 is fixedly connected to the bottom of the outer shell 11; the collection box 6 is located below the rotating shaft 12 and the runner 5; during operation, since the runner 5 is in rotational cleaning, dust and impurities will be diffused when cleaning, but finally they will all fall to the bottom of the outer shell 11. At this time, the collection box 6 is used to collect the falling dust so that the dust is centrally stored; adding the collection box 6 can reduce the scattered dust during cleaning, reduce the cleaning time due to dust dispersion, and facilitate unified treatment.

[0031] Working principle: Insert the test wire 15 into the interior of the housing 11 through the first round hole 14, and then wind the test wire 15 around the surface of the reel 13. After winding is completed, pull the pull rod 17. At this time, the pull rod 17 will drive the arc-shaped plate 19 to move together, thus creating space inside the fixing box 16. Then, put the end of the test wire 15 into the fixing box 16 through the second round hole 101. When the end of the test wire 15 enters the deepest part of the fixing box 16, release the pull rod 17. Due to the elasticity of the spring 18, it will immediately rebound and reset after release, causing the opposing arc-shaped plates 19 to approach the end of the test wire 15 to clamp the end of the test wire 15. Subsequently, start the motor to rotate the rotating shaft 12 to tighten the test wire 15 for tensile testing; when it is necessary to fix or release the test wire 15, first pull the pull rod 17, but due to the elasticity of the spring 18, there will be a resilience force, resulting in the pull rod 17 immediately restoring when released. At this time, it is necessary to use the third round hole 2 to insert into the insertion rod 21 for limiting, so that the pull rod 17 will not rebound after release. After the test wire 15 is placed, take out the third round hole 2 to make the spring 18 rebound and reset; when the arc-shaped plate 19 contacts the end of the test wire 15, since the fixing block 3 is inclined at the bottom of the arc-shaped plate 19, and the test wire 15 is composed of multiple strands of test wire 15, there will be a certain gap between the multiple strands of test wire 15. Therefore, when the fixing block 3 contacts the surface of the test wire 15, it will enter these gaps, thereby increasing the contact area, increasing the friction force, and increasing the stability of fixing the test wire 15, reducing the displacement and slippage of the test wire 15 during tensile testing; when the fixing block 3 contacts the surface of the test wire 15, it will squeeze the test wire 15. At this time, the fixing ball 4 is between the fixing block 3 and the test wire 15, and the fixing ball 4 will penetrate into the gaps on the surface of the test wire 15 and fit tightly with the test wire 15, thereby increasing the contact area again and increasing the friction force to fix the test wire 15; in various tests, since tensile testing is the most critical and the first step, the produced test wire 15 will be subjected to tensile testing. When the rotating shaft 12 rotates, the lower runner 5 will also rotate. At this time, the brush bristles 51 will repeatedly clean the dust on the surface of the test wire 15 wound around the reel 13 to help better observe after the test is completed; since the runner 5 is for rotational cleaning, when cleaning, the dust and impurities will be splashed everywhere, but finally they will all fall to the bottom of the housing 11. At this time, use the collection box 6 to collect the fallen dust to store the dust centrally.

[0032] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A testing device for large-diameter high-strength steel wires, comprising a base (1), characterized in that: A pair of outer shells (11) are fixedly connected to the top of the base (1); a rotating shaft (12) is rotatably connected to the inner wall of the outer shell (11); a winding wheel (13) is fixedly connected to the middle of the rotating shaft (12); a pair of first circular holes (14) are formed in the side wall of the outer shell (11); a test steel wire (15) is arranged inside the first circular hole (14); the first circular hole (14) and the test steel wire (15) are in sliding fit; a fixed box (16) is fixedly connected to the side wall of the rotating shaft (12); a pair of pull rods (17) are slidably connected to the side wall of the fixed box (16) and penetrate through the fixed box; an arc-shaped plate (19) is fixedly connected to the end of the pull rod (17); a spring (18) is fixedly connected to the surface of the arc-shaped plate (19); a spring (18) is fixedly connected to the inner wall of the fixed box (16); a second circular hole (101) is formed in the surface of the fixed box (16).

2. The testing device for a large-diameter high-strength steel wire according to claim 1, characterized in that: A plurality of third circular holes (2) are formed in the surface of the pull rod (17); a plug rod (21) is arranged inside the third circular hole (2).

3. The testing device for a large-diameter high-strength steel wire according to claim 2, wherein: A fixed block (3) is fixedly connected to the bottom of the arc-shaped plate (19); a plurality of fixed blocks (3) are arranged on the arc-shaped plate (19).

4. The testing device for a large-diameter high-strength steel wire according to claim 3, characterized in that: A fixed ball (4) is fixedly connected to the bottom of the fixed block (3); a plurality of fixed balls (4) are arranged on the fixed block (3).

5. The testing device for a large-diameter high-strength steel wire according to claim 4, characterized in that: A rotating wheel (5) is rotatably connected to the inner wall of the outer shell (11); a brush hair (51) is fixedly connected to the surface of the rotating wheel (5); a plurality of brush hairs (51) are arranged on the rotating wheel (5).

6. The testing device for a large-diameter high-strength steel wire according to claim 5, characterized in that: A collection box (6) is fixedly connected to the bottom of the outer shell (11); the collection box (6) is located below the rotating shaft (12) and the rotating wheel (5).

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