Wire breakage protection device in a steel wire strength detection process

Abstract

The present application relates to the technical field of steel wire detection, and particularly relates to a broken wire protection device in a steel wire strength detection process, which comprises two bottom beams, which are oppositely distributed and arranged in parallel on a horizontal plane; two winding rollers, which are located between the two bottom beams and arranged in parallel, and the bottom beams are perpendicular to the winding rollers; wherein the steel wire can be wound for several turns between the two winding rollers during detection, and one or both of the winding rollers can move on the bottom beams when the steel wire is broken; by using the movement mode that the two winding rollers can move close to or away from each other, the length of the wound steel wire on the two winding rollers can be adjusted, so that the two winding rollers can quickly wind the steel wire when the steel wire is broken, thereby avoiding the steel wire from being randomly swung around in the test space, avoiding the broken steel wire from damaging the equipment, and facilitating the protection of the operator and improving the test safety.

Description

Technical Field

[0001] This invention relates to the technical field of steel wire testing, and in particular to a wire breakage protection device during the steel wire strength testing process. Background Technology

[0002] Steel wire strength testing is a crucial step in evaluating its mechanical properties and ensuring the safety of engineering applications. Existing testing methods typically employ a universal testing machine to apply axial tension to the steel wire sample until it breaks, obtaining core indicators such as tensile strength and elongation after fracture. However, during traditional tensile testing, when the load on the steel wire reaches its limit, the sample will suddenly break. Because a large amount of elastic strain energy has accumulated inside the steel wire before fracture, once it breaks, the energy stored in the tensile section will be released rapidly, causing the two ends of the steel wire fracture to rebound in opposite directions at extremely high speeds and make irregular swinging motions in the test space. This motion generates a large amount of impact kinetic energy, which can easily damage the equipment and also poses a significant danger to the operators. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a wire breakage protection device in the process of steel wire strength testing, the specific technical solution of which is as follows: The present invention provides a wire breakage protection device during the steel wire strength testing process, comprising: The two bottom beams are distributed opposite each other on the horizontal plane and are set parallel to each other. Two rollers are located between the two bottom beams and are arranged parallel to each other, with the bottom beams and the rollers being perpendicular to each other; During testing, the steel wire can be wound several times between the two rollers. When the steel wire breaks, one or two rollers move on the bottom beam, and the distance between the two rollers increases.

[0004] Furthermore, the outer wall of the roller is provided with a number of auxiliary wheels for supporting the steel wire.

[0005] Furthermore, the auxiliary wheels on the roller are divided into multiple groups along the axis of the roller, and the rotation speed of each group gradually increases or decreases along the axis of the roller. The auxiliary wheels in each group are distributed along the circumference of the roller.

[0006] Furthermore, the roller is hollow, and a drive column is provided inside the roller. A plurality of drive surfaces are provided on the outer wall of the drive column. The shape of the drive surfaces is a circle coaxial with the roller, and the diameter of the plurality of drive surfaces gradually increases or decreases along the axial direction of the roller. The drive surfaces are connected to the corresponding auxiliary wheel for transmission. The end of the roller is provided with a motor for providing rotational power to the drive surface.

[0007] Furthermore, notches are provided on the outer circumference of both ends of the roller, two rollers are coaxially arranged on the drive column, a long beam is provided on the bottom beam, the long beam passes through the notches, and two rolling surfaces are provided on the long beam. The two rollers on the same side of the two rollers roll on the two rolling surfaces on the corresponding long beams, and the diameters of the two rollers are different.

[0008] Furthermore, the long beam is slidably disposed on the bottom beam along the moving direction of the roller, and a limit body and a spring are disposed on the bottom beam. The limit body limits the position of the long beam, and the spring is used to connect the long beam and the bottom beam.

[0009] Furthermore, a telescopic rod is provided between the two rollers. The two ends of the telescopic rod are connected by springs. One end of the telescopic rod is fixedly connected to one of the rollers, and the other end is in contact with the other roller, so that when the two rollers compress the telescopic rod to the shortest distance, the roller and the rolling surface are relatively stationary.

[0010] Furthermore, each of the rollers is equipped with a pressure roller. During the process of the two rollers separating from each other, the broken steel wire passes through the gap between the pressure roller and the corresponding roller and is conveyed.

[0011] The beneficial effects of this invention are as follows: By utilizing the movement pattern of the two rollers moving closer or further apart, the length of the steel wire wound on the two rollers can be adjusted. This allows the two rollers to quickly rewind the steel wire when it breaks during testing, thus preventing the steel wire from swinging around randomly in the test space and avoiding damage to the equipment from the broken wire. It also facilitates the protection of operators and improves the safety of the test. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a wire breakage protection device used in the process of testing the strength of steel wire. Figure 2 for Figure 1 Schematic diagram of the structure of the intermediate winding roller; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the intermediate winding roll; Figure 4 for Figure 3 Schematic diagram of the central drive column; Figure 5 for Figure 1 A schematic diagram of the structure of spring one; Figure 6 for Figure 1 A magnified view of the structure at point A in the middle; Figure label: 1. Bottom beam; 2. Roller; 3. Auxiliary wheel; 4. Drive column; 5. Drive surface; 6. Motor; 7. Notch; 8. Roller; 9. Long beam; 10. Rolling surface; 11. Limiting body; 12. Spring 1; 13. Telescopic rod; 14. Spring 2; 15. Pressure roller; 16. Adjusting plate. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0015] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0016] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0017] like Figures 1 to 6 As shown, a wire breakage protection device in the process of steel wire strength testing according to the present invention includes: The two bottom beams 1 are distributed relatively to each other on the horizontal plane and are set parallel to each other; Two rollers 2 are located between two bottom beams 1 and are arranged parallel to each other, with the bottom beams 1 and the rollers 2 perpendicular to each other; During testing, the steel wire can be wound several times between the two rollers 2. When the steel wire breaks, one or two rollers 2 move on the bottom beam 1, and the distance between the two rollers 2 increases.

[0018] In this invention, the two bottom beams 1 can support the roller 2 from both ends, and the ends of the roller 2 can be slidably mounted on the bottom beams 1. This allows control over the position of the two rollers 2 on the bottom beams 1 and the distance between the two rollers 2. The two rollers 2 are mainly used to wind up the steel wire. In a natural state, the two rollers 2 are close to each other, and the length of the steel wire wound on the two rollers 2 is relatively small. However, when the steel wire breaks, the two rollers 2 move away from each other, and the length of the steel wire wound on the two rollers 2 increases, thereby allowing the broken steel wire to be quickly wound up on the two rollers 2.

[0019] Since both ends of the broken wire need to be protected, two protective devices need to be installed on the external inspection equipment. When inspecting a long section of wire, since the location of the breakage cannot be accurately predicted, the diameter of the roller 2 can be reduced, and multiple turns of wire can be wound between the two rollers 2. This can reduce the length of wire wound on the two rollers 2, and also allow the two rollers 2 to wind up a large amount of wire when the wire breaks.

[0020] The movement of the roller 2 on the base beam 1 can be driven by a power source such as a motor or cylinder. Both rollers 2 can move on the base beam 1. In order to achieve the effect of separating the two rollers 2, the two rollers 2 can move in the same direction on the base beam 1, and one roller 2 moves faster while the other roller 2 moves slower on the base beam 1. Alternatively, the two rollers 2 can move in opposite directions on the base beam 1. When only one roller 2 moves on the base beam 1, the other roller 2 can be fixed on the base beam 1.

[0021] By utilizing the movement pattern of the two rollers 2 moving closer or further apart, the length of the steel wire wound on the two rollers 2 can be adjusted. This allows the two rollers 2 to quickly rewind the steel wire when it is detected as broken, thus preventing the steel wire from swinging around randomly in the test space and avoiding damage to the equipment from the broken steel wire. At the same time, it facilitates the protection of operators and improves the safety of the test.

[0022] Furthermore, the outer wall of the roller 2 is provided with several auxiliary wheels 3 for supporting the steel wire.

[0023] When the two rollers 2 approach or move away from each other, the length of the steel wire wound on the two rollers 2 changes. At this time, the steel wire slides relative to the outer wall of the roller 2. In order to reduce the friction between the steel wire and the roller 2, several auxiliary wheels 3 on the roller 2 can be used to support the steel wire. When the two rollers 2 need to wind up the steel wire, the setting of the auxiliary wheels 3 can reduce the motion resistance when the two rollers 2 move away from each other, increase the winding speed, and thus improve the protection effect.

[0024] Furthermore, the auxiliary wheels 3 on the roller 2 are divided into multiple groups along the axis of the roller 2, and the rotation speed of each group gradually increases or decreases along the axis of the roller 2. The auxiliary wheels 3 in each group are distributed along the circumference of the roller 2.

[0025] like Figure 2 As shown, multiple sets of auxiliary wheels 3 are arranged along the axis of the roller 2, and each set contains multiple auxiliary wheels 3 arranged along the circumference of the roller 2. When the two rollers 2 are far apart, since one end of the steel wire is fixed to the external detection equipment, the winding work of the two rollers 2 is mainly reflected on the broken steel wire segment. Therefore, the conveying speed of the steel wire at the end of the two rollers 2 corresponding to the broken position is the fastest. Along the axis of the roller 2, the conveying speed of the steel wire on the two rollers 2 gradually decreases. As a result, when the two rollers 2 are separated, the length of the steel wire between the two rollers 2 gradually increases, achieving the purpose of winding the steel wire. However, if the auxiliary wheels 3 on the two rollers 2 rotate at the same speed, the distance between the two rollers 2 cannot be changed. The two rollers 2 can only achieve the effect of conveying the steel wire, but cannot achieve the effect of winding the steel wire.

[0026] Furthermore, the roller 2 is hollow, and a drive column 4 is provided inside the roller 2. Several drive surfaces 5 are provided on the outer wall of the drive column 4. The shape of the drive surfaces 5 is a circle coaxial with the roller 2, and the diameter of the several drive surfaces 5 gradually increases or decreases along the axial direction of the roller 2. The drive surfaces 5 are connected to the corresponding auxiliary wheels 3 for transmission. The end of the roller 2 is equipped with a motor 6 for providing rotational power to the drive surface 5.

[0027] The two ends of the drive column 4 are rotatably mounted on the two ends of the roller 2, and the drive column 4 can be driven by the motor 6. When the steel wire breaks, the tensile force detected by the external detection device drops instantly. At this time, the external controller can control the motor 6 to start and drive the drive column 4 to rotate. The drive column 4 can drive the corresponding auxiliary wheel 3 to rotate through each drive surface 5, thereby realizing the conveying function of the steel wire on the roller 2. This function is active, rather than passively pulling the steel wire by the relative movement of the two rollers 2. The characteristic of the gradually changing diameter of several drive surfaces 5 on the drive column 4 can help to make the rotation speed of the auxiliary wheel 3 in different groups different.

[0028] In some embodiments, to prevent the steel wire from falling off the auxiliary wheel 3, baffles are provided on both ends of the auxiliary wheel 3 to restrict the steel wire.

[0029] Furthermore, notches 7 are provided on the outer circumference of both ends of the roller 2, two rollers 8 are coaxially arranged on the drive column 4, and a long beam 9 is provided on the bottom beam 1. The long beam 9 passes through the notches 7 and two rolling surfaces 10 are provided on the long beam 9. The two rollers 8 on the same side of the two rollers 2 roll on the two rolling surfaces 10 on the corresponding long beams 9, and the diameters of the two rollers 8 are different.

[0030] The notch 7 provides space for the long beam 9 to move, facilitating the use of the roller 8 in conjunction with the rolling surface 10 on the long beam 9. When the drive column 4 rotates, it drives the roller 8 to rotate, and the roller 8 rolls on the long beam 9, thereby driving the winding roller 2 to move on the bottom beam 1. Since the distance between the two winding rollers 2 is related to the conveying speed of the steel wire on the two winding rollers 2, and the conveying speed of the steel wire is related to the rotation speed of the drive column 4, in order to achieve the movement mode of the two winding rollers 2 moving away from or closer to each other, the diameters of the two rollers 8 need to be different. That is, the two motors 6 need to provide equal rotation speeds for the two drive columns 4. The roller 8 with a larger diameter has a greater rolling linear speed on the corresponding rolling surface 10, and the corresponding winding roller 2 moves faster laterally, while the conveying speed of the steel wire on the winding roller 2 remains stable. This facilitates the correlation between the moving speed of the winding roller 2, the relative movement speed of the two winding rollers 2, and the winding speed of the steel wire.

[0031] Furthermore, the long beam 9 is slidably arranged on the bottom beam 1 along the moving direction of the roller 2. A limit body 11 and a spring 12 are provided on the bottom beam 1. The limit body 11 limits the position of the long beam 9, and the spring 12 is used to connect the long beam 9 and the bottom beam 1.

[0032] Spring 12 provides elastic force to the long beam 9, allowing it to abut against the limiting body 11 in its natural state. The long beam 9 is fixed in position. When a tensile test is required on the steel wire, the end of the steel wire fixed to the external testing equipment will pull the two rollers 2 to move laterally on the bottom beam 1. Since the rollers 2 and the long beam 9 cooperate with each other through the rollers 8 and the rolling surface 10, the two rollers 2 will overcome the elastic force of spring 12 and drive the long beam 9 to slide synchronously on the bottom beam 1, thereby achieving the effect of providing tensile force to the steel wire and facilitating the transfer of force from the end of the steel wire to the steel wire section between the two protective devices.

[0033] In practical use, since spring 12 provides reverse resistance to the tension of the steel wire, the tension value of spring 12 can be detected based on the extension length of spring 12, thereby eliminating the interference of this resistance on the tension.

[0034] Furthermore, a telescopic rod 13 is provided between the two rollers 2. The two ends of the telescopic rod 13 are connected by springs 14. One end of the telescopic rod 13 is fixedly connected to one roller 2, and the other end is in contact with the other roller 2, so that when the two rollers 2 compress the telescopic rod 13 to the shortest distance, the roller 8 and the rolling surface 10 are relatively stationary.

[0035] When the steel wire is subjected to tensile testing, the steel wire pulls the two rollers 2 closer together. The steel wire uses the auxiliary wheel 3, drive column 4, roller 8 and rolling surface 10 to drive the rollers 2 to move on the bottom beam 1 in the opposite direction. The end of the telescopic rod 13 on one roller 2 abuts against the other roller 2, and the telescopic rod 13 and its spring 14 are compressed. When the length of the telescopic rod 13 reaches its shortest value, the telescopic rod 13 limits the distance between the two rollers 2. The rollers 8 of different diameters on the two rollers 2 cannot roll at different speeds on the long beam 9, thereby locking the position of the two rollers 2 relative to the long beam 9. The external testing equipment transmits the tensile force through the two rollers 2 to the steel wire section between the two testing devices, realizing the direct transmission of force.

[0036] When the steel wire breaks, the force provided by the spring 14 to the two rollers 2 will help push the two rollers 2 to separate from each other, thereby increasing the winding speed of the two rollers 2 on the broken steel wire.

[0037] Furthermore, each of the rollers 2 is equipped with a pressure roller 15. During the process of the two rollers 2 separating from each other, the broken steel wire passes through the gap between the pressure roller 15 and the corresponding roller 2 and is conveyed.

[0038] When the steel wire breaks, the two rollers 2 separate from each other. The pressure roller 15 works with the rollers 2 to straighten the steel wire and make it stably wound on the two rollers 2, avoiding the steel wire from being randomly wrapped on the two rollers 2, which would cause wire overlap or biting. At the same time, the setting of the pressure roller 15 can quickly reduce the free length of the broken part of the steel wire.

[0039] like Figure 1 As shown, several grooves are provided on the outer wall of the pressure roller 15 to cooperate with each set of auxiliary wheels 3.

[0040] Adjusting plates 16 are provided at both ends of the pressure roller 15. The pressure roller 15 can rotate on the adjusting plates 16, and the adjusting plates 16 can slide at the end of the winding roller 2. The adjusting plates 16 and the winding roller 2 are fastened together by the set screw. Thus, during the initial test, the pressure roller 15 can be moved away from the winding roller 2, and there is a large space between the pressure roller 15 and the winding roller 2, which facilitates the insertion of steel wire.

[0041] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A wire breakage protection device during steel wire strength testing, characterized in that, include: The two bottom beams are distributed opposite each other on the horizontal plane and are set parallel to each other. Two rollers are located between the two bottom beams and are arranged parallel to each other, with the bottom beams and the rollers being perpendicular to each other; During testing, the steel wire can be wound several times between the two rollers. When the steel wire breaks, one or two rollers move on the bottom beam, and the distance between the two rollers increases. The outer wall of the roller is provided with a number of auxiliary wheels for supporting the steel wire; The auxiliary wheels on the roller are divided into multiple groups along the axis of the roller. The rotation speed of each group gradually increases or decreases along the axis of the roller. The auxiliary wheels in each group are distributed along the circumference of the roller. The roller is hollow and a drive column is provided inside the roller. Several drive surfaces are provided on the outer wall of the drive column. The shape of the drive surfaces is a circle coaxial with the roller, and the diameter of the several drive surfaces gradually increases or decreases along the axial direction of the roller. The drive surfaces are connected to the corresponding auxiliary wheel for transmission. The end of the roller is provided with a motor for providing rotational power to the drive surface; The outer circumferential walls at both ends of the roller are provided with notches. Two rollers are coaxially arranged on the drive column. A long beam is provided on the bottom beam. The long beam passes through the notches. Two rolling surfaces are provided on the long beam. The two rollers on the same side of the two rollers roll on the two rolling surfaces on the corresponding long beams respectively. The diameters of the two rollers are different. The long beam is slidably disposed on the bottom beam along the moving direction of the roller. A limit body and a spring are disposed on the bottom beam. The limit body limits the position of the long beam, and the spring is used to connect the long beam and the bottom beam. A telescopic rod is provided between the two rollers. The two ends of the telescopic rod are connected by springs. One end of the telescopic rod is fixedly connected to one of the rollers, and the other end is in contact with the other roller, so that when the two rollers compress the telescopic rod to the shortest distance, the roller and the rolling surface are relatively stationary.

2. The wire breakage protection device in the process of steel wire strength testing according to claim 1, characterized in that, Each of the rollers is equipped with a pressure roller. During the process of the two rollers separating from each other, the broken steel wire passes through the gap between the pressure roller and the corresponding roller and is conveyed.

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