Wire tension testing device

Abstract

The utility model discloses a wire tension testing device, which belongs to the technical field of wire detection and comprises a testing base, a lower protective shell for protecting a wire is mounted on the top surface of the testing base, and the top surface of the testing base is rotatably connected with a threaded shaft through a pin shaft. A supporting frame used for supporting the threaded shaft is installed on the top face of the testing base and located on the periphery of the threaded shaft, the peripheral side of the threaded shaft is sleeved with a movable plate in a threaded mode, an upper protection shell used for protecting wires is installed on one side face of the movable plate, and inclined L-shaped limiting rods are installed on the two side faces of the supporting frame. The free ends of the two limiting rods are fixedly connected with the top surface of the test base, two limiting plates are symmetrically installed on one side surface of the upper protective shell, and the two limiting plates are arranged on the peripheral sides of the two limiting rods in a sliding and sleeving mode respectively. According to the wire tension testing device, the problem that a broken wire is easily thrown out due to inertia is solved, and the danger of workers during working is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wire testing technology, and in particular to a wire tensile testing device. Background Technology

[0002] Wire rod is the smallest type of hot-rolled steel in terms of cross-sectional dimensions. Because it is delivered in coils, it is also called wire rod. Currently, tensile testing devices are used to test the strength of wire rod. However, most testing devices lack protective components. Since wire rods inevitably break during the testing process, the broken wire rods may be thrown out due to inertia, which could easily injure workers and increase the danger to personnel working in the field.

[0003] A Chinese patent (authorization announcement number CN218180581U) discloses a calibration device for a novel wire tester, which includes: "a rectangular bracket, with support columns detachably mounted at both ends of the rectangular bracket, a pin sleeved on the inner wall of the support column, a fixing component detachably mounted on the pin, and a multifunctional testing mechanism mounted on the rectangular bracket."

[0004] It is evident that the cited patent document contains the problem of broken wires being thrown out due to inertia and injuring people. Utility Model Content

[0005] The purpose of this invention is to provide a wire tensile testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wire tensile testing device, comprising a testing base, a lower protective shell for protecting the wire installed on the top surface of the testing base, a threaded shaft rotatably connected to the top surface of the testing base via a pin, a support frame for supporting the threaded shaft installed on the top surface of the testing base and on the outer periphery of the threaded shaft, a movable plate threadedly fitted around the periphery of the threaded shaft, an upper protective shell for protecting the wire installed on one side of the movable plate, inclined L-shaped limiting rods installed on both sides of the support frame, the free ends of the two limiting rods being connected and fixed to the top surface of the testing base, and two limiting plates symmetrically installed on one side of the upper protective shell, the two limiting plates being slidably fitted around the periphery of the two limiting rods respectively.

[0007] Preferably, a mounting base is installed on one side of the top surface of the test base, and a vertical plate is installed on the other side of the top surface of the test base.

[0008] Preferably, a tension gauge is installed on one side of the mounting base, and an electric push rod is installed on one side of the upright plate.

[0009] Preferably, the output end of the electric push rod passes through one side of the upright plate, and both the output end of the electric push rod and one side of the force gauge are bolted with a moving block through a connecting plate.

[0010] Preferably, a bottom block is installed on one of the opposite sides of the two movable blocks, and a groove is formed on one of the opposite sides of the two movable blocks.

[0011] Preferably, the inner bottom surfaces of both grooves are rotatably connected to threaded rods via pins, and movable blocks are threadedly fitted around the periphery of both threaded rods.

[0012] Preferably, each of the two movable blocks has a clamping block installed on one of its opposite sides for clamping the wire for tensile testing.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This wire tensile testing device provides power for the movement of the upper protective shell by rotating the threaded shaft. Together with the lower protective shell, it can enclose the wire for tensile testing. Compared with existing devices for wire tensile testing, this device can protect the wire and prevent the broken wire from being thrown out due to inertia during tensile testing, thus reducing the danger to personnel.

[0015] By installing two limit rods and two limit plates, the movement trajectory of the upper protective shell can be limited, preventing it from rotating along with the threaded shaft.

[0016] By rotating the threaded rod, the movement of the clamping block can be powered, and with the addition of the wave groove, the wire can be clamped, facilitating subsequent tensile testing. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the threaded shaft and support frame of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the upper protective shell and the limiting plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the base block and clamping block of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Test base; 2. Lower protective shell; 3. Threaded shaft; 4. Support frame; 5. Moving plate; 6. Upper protective shell; 7. Limiting rod; 8. Limiting plate; 9. Mounting seat; 10. Tensile gauge; 11. Vertical plate; 12. Electric push rod; 13. Moving block; 14. Bottom block; 15. Groove; 16. Threaded rod; 17. Movable block; 18. Clamping block. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0026] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0027] like Figures 1 to 4 The device for testing the tensile strength of a wire includes a test base 1. A lower protective shell 2 for protecting the wire is mounted on the top surface of the test base 1. A threaded shaft 3 is rotatably connected to the top surface of the test base 1 via a pin. A support frame 4 for supporting the threaded shaft 3 is mounted on the top surface of the test base 1 and on the outer periphery of the threaded shaft 3. A through hole for the threaded shaft 3 to pass through is opened on the top surface of the support frame 4. A bearing is installed on the inner wall of the through hole. The outer wall of the bearing is connected and fixed to the inner wall of the through hole. The circumference of the top end of the threaded shaft 3 passes through the bearing and is connected and fixed to the inner wall of the bearing. A throttle is connected, and a movable plate 5 is threaded around the circumference of the threaded shaft 3. An upper protective shell 6 for protecting the wire is installed on one side of the movable plate 5. After the wire is placed between the lower protective shell 6 and the upper protective shell 2, turning the throttle will drive the threaded shaft 3 to rotate, thereby driving the movable plate 5 to move downward, and then driving the upper protective shell 6 to move downward, so that the bottom surface of the upper protective shell 6 abuts against the top surface of the lower protective shell 2. This allows the lower protective shell 2 and the upper protective shell 6 to wrap around the wire, protecting it and preventing the wire from breaking during tensile testing and injuring personnel due to inertia.

[0028] Both sides of the support frame 4 are equipped with inclined L-shaped limiting rods 7. The free ends of the two limiting rods 7 are connected and fixed to the top surface of the test base 1. Two limiting plates 8 are symmetrically installed on one side of the upper protective shell 6. The two limiting plates 8 are slidably sleeved on the periphery of the two limiting rods 7. When the upper protective shell 6 moves longitudinally, it will drive the two limiting plates 8 to move on the periphery of the two limiting rods 7, thereby limiting the movement trajectory of the upper protective shell 6 and preventing it from rotating with the threaded shaft 3.

[0029] A mounting base 9 is installed on one side of the top surface of the test base 1, and a vertical plate 11 is installed on the other side of the top surface of the test base 1. A tension gauge 10 is installed on one side of the mounting base 9. The tension gauge 10 adopts the existing model LLB mechanical tension gauge. An electric push rod 12 is installed on one side of the vertical plate 11. The output end of the electric push rod 12 passes through one side of the vertical plate 11. The output end of the electric push rod 12 and one side of the tension gauge 10 are both connected to a moving block 13 through a connecting plate. By turning on the electric push rod 12, one of the moving blocks 13 can be driven to reciprocate, thereby changing the distance between the two moving blocks 13.

[0030] Each of the two movable blocks 13 has a base block 14 mounted on one of its opposite sides. Each of the two movable blocks 13 has a groove 15 on one of its opposite sides. The inner bottom surfaces of each groove 15 are rotatably connected to a threaded rod 16 via a pin. The top of each threaded rod 16 passes through the movable block 13 and is connected to a knob. Each of the two threaded rods 16 has a movable block 17 threaded around its periphery. Each of the two movable blocks 17 has a clamping block 18 mounted on one of its opposite sides for clamping the wire for tensile testing. The two ends of the wire are placed on the top surfaces of the two base blocks 14, and then the knob is turned. This rotates the threaded rod 16, causing the movable block 17 to move downwards, which in turn moves the clamping block 18 downwards, thus clamping and fixing the wire in conjunction with the base block 14. At this time, the electric push rod 12 is activated, which moves one of the movable blocks 13. This, through the base block 14 and clamping block 18, moves one end of the wire, allowing for tensile testing. The tensile strength data can be measured by reading the value from the tensile strength gauge 10.

[0031] Each of the two movable blocks 13 has a sliding groove on one side, and each of the two clamping blocks 18 has a slider that is adapted to slide in the sliding groove on one side. When the clamping block 18 moves longitudinally, it will drive the slider to move in the inner cavity of the sliding groove, thereby limiting the movement trajectory of the clamping block 18.

[0032] Both the bottom block 14 and the clamping block 18 have staggered wave grooves on their opposite sides. When the clamping block 18 approaches the bottom block 14, the wave groove on the bottom surface of the clamping block 18 will fill the gap of the wave groove on the top surface of the bottom block 14, thereby increasing the friction force when clamping the wire.

[0033] The tension gauge 10, the moving block 13, the bottom block 14, the groove 15, the threaded rod 16, the movable block 17, and the clamping block 18 are all located between the lower protective shell 2 and the upper protective shell 6, so that after the bottom surface of the upper protective shell 6 abuts against the top surface of the lower protective shell 2, it can wrap around the wire and protect the wire.

[0034] One side of the upper protective shell 6 has a through groove through which the output end of the electric push rod 12 passes, which facilitates the tensile testing of the wire. The other side of the upper protective shell 6 has a transparent baffle, which allows personnel to observe the wire tensile gauge 10.

[0035] Working principle:

[0036] This wire tensile testing device places both ends of the wire on the top surfaces of the two base blocks 14. Turning the knob moves the threaded rod 16 to move the movable block 17 downwards, which in turn moves the clamping block 18 downwards. This, combined with the corrugated groove, clamps and fixes the wire. Turning the handle moves the threaded shaft 3 to move the movable plate 5 downwards, which in turn moves the upper protective shell 6 downwards, so that the bottom surface of the upper protective shell 6 abuts against the top surface of the lower protective shell 2. This allows the lower protective shell 2 and the upper protective shell 6 to enclose the wire. Then, activating the electric push rod 12 moves one of the movable blocks 13, which in turn moves one end of the wire through the base blocks 14 and the clamping block 18, thus performing tensile testing on the wire. This avoids the situation where a broken wire may be thrown out due to inertia and injure personnel during tensile testing, reducing the danger to personnel during operation.

[0037] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire tensile testing device, comprising a testing base (1), characterized in that: The test base (1) has a lower protective shell (2) for protecting the wire installed on its top surface. The test base (1) has a threaded shaft (3) rotatably connected to its top surface via a pin. The test base (1) has a support frame (4) for supporting the threaded shaft (3) installed on its top surface and around the threaded shaft (3). A movable plate (5) is threaded around the threaded shaft (3). An upper protective shell (6) for protecting the wire is installed on one side of the movable plate (5). Both sides of the support frame (4) are equipped with inclined L-shaped limiting rods (7). The free ends of the two limiting rods (7) are connected and fixed to the top surface of the test base (1). Two limiting plates (8) are symmetrically installed on one side of the upper protective shell (6). The two limiting plates (8) are slidably sleeved around the two limiting rods (7).

2. The wire tensile testing device according to claim 1, characterized in that: A mounting base (9) is installed on one side of the top surface of the test base (1), and a vertical plate (11) is installed on the other side of the top surface of the test base (1).

3. The wire tensile testing device according to claim 2, characterized in that: A tension gauge (10) is installed on one side of the mounting base (9), and an electric push rod (12) is installed on one side of the upright plate (11).

4. The wire tensile testing device according to claim 3, characterized in that: The output end of the electric push rod (12) passes through one side of the upright plate (11), and the output end of the electric push rod (12) and one side of the tension gauge (10) are both connected to a moving block (13) by a connecting plate.

5. The wire tensile testing device according to claim 4, characterized in that: Each of the two movable blocks (13) has a bottom block (14) installed on one of their opposite sides, and each of the two movable blocks (13) has a groove (15) on one of their opposite sides.

6. The wire tensile testing device according to claim 5, characterized in that: The inner bottom surfaces of the two grooves (15) are rotatably connected to threaded rods (16) via pins, and movable blocks (17) are threadedly sleeved on the periphery of the two threaded rods (16).

7. The wire tensile testing device according to claim 6, characterized in that: Each of the two movable blocks (17) has a clamping block (18) installed on one of their opposite sides for clamping the wire for tensile testing.

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