Cable tension testing machine

Abstract

The utility model relates to the technical field of cable tension testing, and discloses a cable tension testing machine, which comprises a bottom plate and a screw rod, bearing seats are arranged on two sides of the top of the bottom plate, the screw rod is arranged in the bearing seats, screw rod nuts are arranged on the outer side of the screw rod, a movable pull rod is arranged between the screw rod nuts, and the movable pull rod is arranged on the bottom plate. An adjusting screw rod is arranged in the movable pull rod, a locking nut is arranged at the end, located at the sleeve, of the outer side of the adjusting screw rod, a cable clamping mechanism is arranged at one end of the tension meter, a fixing plate is arranged on one side of the top of the bottom plate, and the cable clamping mechanism is arranged on one side of the fixing plate; according to the utility model, test parameters of the cables are detected and recorded through the tension meter until the cables are broken, and then the movable pull rod continues to move, so that the whole tension tester can perform tension tests on three cables at the same time, and when one cable is subjected to tension test, the other two cables are not subjected to the tension effect, so that the test efficiency is improved. And the accuracy of the tension test of each cable is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tension testing, in particular to a cable tension testing machine. Background Art

[0002] Cable tensile testing machine is an important tool for testing the mechanical properties of cables and related materials. Tensile testing is a necessary step to ensure the safety and reliability of cable products and to improve product performance. It uses specific test equipment and methods to simulate the performance of wires and cables under different stresses, thereby obtaining material performance data.

[0003] After searching, the Chinese utility model patent with publication number: CN220271019U discloses a cable tension tester, including a test bench, the upper end surface of the test bench is concavely provided with a transverse groove, a first bidirectional screw is provided in the transverse groove, a pair of moving blocks are symmetrically threadedly connected on the first bidirectional screw, and a tension tester is fixed on the opposite end surfaces of the pair of moving blocks, and a support plate is fixed on the opposite end surfaces of the two tension testers, a second bidirectional screw is longitudinally provided on the upper end surface of the support plate, a pair of moving plates are symmetrically threadedly connected on the second bidirectional screw, a fixed rod is provided above the second bidirectional screw in parallel, and the moving plate is sleeved on the fixed rod. The tension tester compresses the cable wrapped around the fixed rod through a pair of moving plates to prevent the body from slipping and better perform tension testing.

[0004] The above technical solutions and existing tensile testing machines are rarely capable of testing multiple cables simultaneously, resulting in low efficiency of cable tensile testing and inconvenience for staff to use. Utility Model Content

[0005] The purpose of the utility model is to provide a cable tension testing machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable tension testing machine, comprising: a base plate and a screw, bearing seats are provided on both sides of the top of the base plate, a screw is provided inside the bearing seat, a screw nut is provided on the outside of the screw, a movable pull rod is provided between the screw nut, an adjusting screw is provided inside the movable pull rod, there are multiple adjusting screws, a tensile gauge is provided at one end of the adjusting screw, a sleeve is provided on the outside of the adjusting screw, a locking nut is provided on the outside of the adjusting screw at one end of the sleeve, a cable clamping mechanism is provided at one end of the tensile gauge, a fixed plate is provided on one side of the top of the base plate, and a cable clamping mechanism is provided on one side of the fixed plate.

[0007] Furthermore, the cable clamping mechanism includes an L-shaped fixed clamping plate, an L-shaped movable clamping plate is provided on one side of the L-shaped fixed clamping plate, a clamping bolt is provided between the L-shaped fixed clamping plate and the L-shaped movable clamping plate, a clamping screw is provided on one side of the L-shaped fixed clamping plate, and a movable pressure plate is provided at one end of the clamping screw.

[0008] Furthermore, a threading hole is provided inside the fixing plate, and the threading hole is used for inserting the cable, and both ends of the cable are clamped and fixed between the L-shaped fixing clamping plate and the L-shaped movable clamping plate.

[0009] Furthermore, the end of the adjusting screw rod close to the dynamometer is a smooth rod, and a guide through hole is provided inside the movable rod and located outside the adjusting screw rod, and the guide through hole is used for guiding the adjusting screw rod.

[0010] Furthermore, a synchronous motor is provided on the outer side of the bearing seat, one end of the output shaft of the synchronous motor is fixedly connected to one end of the screw rod, and the synchronous motor is used for the synchronous rotation of the screw rods on both sides.

[0011] Furthermore, there are three adjusting screws, and the three adjusting screws are arranged at equal distances on the movable pull rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model realizes that when the cable tension tester is used, multiple adjusting screws are arranged on the movable pull rod, thereby arranging multiple cable clamping mechanisms and tension gauges. When the cable needs to be subjected to tension test, one end of the cable is fixed to the cable clamping mechanism at one end of the tension gauge, and the other end of the cable is fixed to the cable clamping mechanism on one side of the fixed plate. The cable is clamped and fixed between the L-shaped fixed clamping plate and the L-shaped movable clamping plate by the clamping bolt, and the cable is pressed between the L-shaped movable clamping plate and the movable pressure plate by the clamping screw, thereby increasing the contact area between the cable and the cable clamping mechanism and ensuring that the cable is clamped firmly.

[0014] Before conducting a tensile test, the locking nuts on the three adjusting screws are adjusted so that the distances between the three sleeves and the moving rod are different and greater than the tensile breaking length of the cable. During the tensile test, the screw is driven to rotate by a synchronous motor, and the rotational motion of the screw is converted into linear motion by the screw nut, driving the moving rod to move to the side away from the fixed plate. When one of the sleeves contacts the moving rod, the corresponding cable is subjected to tension. The test parameters of the cable are detected and recorded by the tensile meter until the cable breaks, and then the moving rod continues to move. When the second sleeve contacts the moving rod, similarly, the corresponding cable begins to undergo a tensile test until the second cable breaks under force. When the third sleeve contacts the moving rod, a tensile test is performed on the third cable. In this way, the entire tensile testing machine can perform tensile tests on three cables at the same time. Moreover, when a tensile test is performed on one of the cables, the other two cables are not subjected to tension, thereby ensuring the accuracy of the tensile test of each cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a cable tension testing machine of the utility model;

[0016] Figure 2 A stereoscopic diagram of a cable tension testing machine of the utility model from another perspective;

[0017] Figure 3 This is a front view of a cable tension testing machine of the utility model;

[0018] Figure 4 The utility model is a top view of a cable tension testing machine.

[0019] In the figure: 1. Base plate; 2. Bearing seat; 3. Screw; 4. Synchronous motor; 5. Screw nut; 6. Moving rod; 7. Fixed plate; 8. L-shaped fixed clamp; 9. Movable pressure plate; 10. L-shaped movable clamp; 11. Clamping screw; 12. Clamping bolt; 13. Tension gauge; 14. Adjusting screw; 15. Sleeve; 16. Locking nut. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a cable tension testing machine, comprising: a base plate 1 and a screw 3, bearing seats 2 are fixed on both sides of the top of the base plate 1, screw seats 3 are rotatably connected inside the bearing seats 2, screw nuts 5 are arranged on the outside of the screw 3, a movable pull rod 6 is fixed between the screw nuts 5, an adjusting screw 14 is arranged inside the movable pull rod 6, there are multiple adjusting screws 14, a dynamometer 13 is fixed at one end of the adjusting screw 14, a sleeve 15 is movably connected to the outside of the adjusting screw 14, a locking nut 16 is arranged at one end of the sleeve 15 on the outside of the adjusting screw 14, a cable clamping mechanism is fixed to one end of the dynamometer 13, a fixing plate 7 is arranged on one side of the top of the base plate 1, and a cable clamping mechanism is arranged on one side of the fixing plate 7. The lead screw 3 is driven to rotate by the synchronous motor 4, and the rotational motion of the lead screw 3 is converted into linear motion by the lead screw nut 5, driving the movable rod 6 to move to the side away from the fixed plate 7. When one of the sleeves 15 contacts the movable rod 6, the corresponding cable is subjected to tension, and the test parameters of the cable are detected and recorded by the tension meter 13 until the cable breaks, and then the movable rod 6 continues to move. When the second sleeve 15 contacts the movable rod 6, similarly, the corresponding cable starts to be tensilely tested until the second cable breaks under force. When the third sleeve 15 contacts the movable rod 6, the tension test of the third cable is performed. In this way, the entire tension testing machine can perform tension tests on three cables at the same time. Moreover, when a tension test is performed on one of the cables, the other two cables are not subjected to tension, thereby ensuring the accuracy of the tension test of each cable.

[0022] The cable clamping mechanism includes an L-shaped fixed clamping plate 8, an L-shaped movable clamping plate 10 is provided on one side of the L-shaped fixed clamping plate 8, a clamping bolt 12 is provided between the L-shaped fixed clamping plate 8 and the L-shaped movable clamping plate 10, a clamping screw 11 is provided on one side of the L-shaped fixed clamping plate 8, and a movable pressing plate 9 is provided at one end of the clamping screw 11. A threading hole is provided inside the fixed plate 7, and the threading hole is used for the insertion of the cable. Both ends of the cable are clamped and fixed between the L-shaped fixed clamping plate 8 and the L-shaped movable clamping plate 10. The cable is clamped and fixed between the L-shaped fixed clamping plate 8 and the L-shaped movable clamping plate 10 by the clamping bolt 12, and the cable is pressed between the L-shaped movable clamping plate 10 and the movable pressing plate 9 by the clamping screw 11, so as to increase the contact area between the cable and the cable clamping mechanism and ensure that the cable is clamped firmly.

[0023] The cable clamping mechanism at one end of the dynamometer 13 has its L-shaped fixing plate 8 fixedly connected to one end of the dynamometer 13 , while the cable clamping mechanism at one side of the fixing plate 7 has its L-shaped fixing plate 8 fixedly connected to the fixing plate 7 .

[0024] The end of the adjusting screw 14 near the dynamometer 13 is a bare rod, and a guide hole is provided inside the movable rod 6 on the outside of the adjusting screw 14, and the guide hole is used to guide the adjusting screw 14. A synchronous motor 4 is provided on the outside of the bearing seat 2, and one end of the output shaft of the synchronous motor 4 is fixedly connected to one end of the screw 3, and the synchronous motor 4 is used for the synchronous rotation of the screws 3 on both sides. The screw 3 is driven to rotate by the synchronous motor 4, and the rotational motion of the screw 3 is converted into linear motion by the screw nut 5, driving the movable rod 6 to move to the side away from the fixed plate 7.

[0025] There are three adjusting screws 14, and the three adjusting screws 14 are arranged equidistantly on the movable pull rod 6, so as to facilitate clamping multiple cables for tension testing at the same time.

[0026] When the cable tension tester is in use, multiple adjusting screws 14 are arranged on the movable pull rod 6, thereby arranging multiple cable clamping mechanisms and a tension gauge 13. When the cable needs to be subjected to tension testing, one end of the cable is fixed to the cable clamping mechanism at one end of the tension gauge 13, and the other end of the cable is fixed to the cable clamping mechanism on one side of the fixed plate 7. The cable is clamped and fixed between the L-shaped fixed clamping plate 8 and the L-shaped movable clamping plate 10 by the clamping bolt 12. The cable is pressed between the L-shaped movable clamping plate 10 and the movable pressing plate 9 by the clamping screw 11, thereby increasing the contact area between the cable and the cable clamping mechanism and ensuring that the cable is firmly clamped.

[0027] Before the tension test, the locking nuts 16 on the three adjusting screws 14 are adjusted so that the distances between the three sleeves 15 and the moving rod 6 are different and greater than the tensile breaking length of the cable. During the tension test, the screw rod 3 is driven to rotate by the synchronous motor 4, and the rotational motion of the screw rod 3 is converted into linear motion by the screw nut 5, driving the moving rod 6 to move to the side away from the fixed plate 7. When one of the sleeves 15 contacts the moving rod 6, the corresponding cable is subjected to tension. The test parameters of the cable are detected and recorded by the tensile meter 13 until the cable breaks, and then the moving rod 6 continues to move. When the second sleeve 15 contacts the moving rod 6, similarly, the corresponding cable starts to undergo tension test until the second cable breaks under stress. When the third sleeve 15 contacts the moving rod 6, the tension test of the third cable is performed. In this way, the entire tension testing machine can perform tension tests on three cables at the same time. Moreover, when a tension test is performed on one of the cables, the other two cables are not subjected to tension, thereby ensuring the accuracy of the tension test of each cable.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A cable tension testing machine, comprising: A base plate (1) and a screw (3), characterized in that: bearing seats (2) are provided on both sides of the top of the base plate (1), a screw (3) is provided inside the bearing seat (2), a screw nut (5) is provided on the outside of the screw (3), a movable pull rod (6) is provided between the screw nuts (5), an adjusting screw (14) is provided inside the movable pull rod (6), there are multiple adjusting screws (14), a dynamometer (13) is provided at one end of the adjusting screw (14), a sleeve (15) is provided on the outside of the adjusting screw (14), a locking nut (16) is provided on the outside of the adjusting screw (14) at one end of the sleeve (15), a cable clamping mechanism is provided at one end of the dynamometer (13), a fixing plate (7) is provided on one side of the top of the base plate (1), and a cable clamping mechanism is provided on one side of the fixing plate (7).

2. A cable tension testing machine according to claim 1, characterized in that: The cable clamping mechanism comprises an L-shaped fixed clamping plate (8), an L-shaped movable clamping plate (10) is provided on one side of the L-shaped fixed clamping plate (8), a clamping bolt (12) is provided between the L-shaped fixed clamping plate (8) and the L-shaped movable clamping plate (10), a clamping screw (11) is provided on one side of the L-shaped fixed clamping plate (8), and a movable pressing plate (9) is provided at one end of the clamping screw (11).

3. A cable tension testing machine according to claim 2, characterized in that: The fixing plate (7) is provided with a threading hole inside, and the threading hole is used for inserting the cable. Both ends of the cable are clamped and fixed between the L-shaped fixing clamping plate (8) and the L-shaped movable clamping plate (10).

4. A cable tension testing machine according to claim 1, characterized in that: The end of the adjusting screw (14) close to the dynamometer (13) is a smooth rod, and a guide through hole is provided inside the movable pull rod (6) and located outside the adjusting screw (14), and the guide through hole is used for guiding the adjusting screw (14).

5. A cable tension testing machine according to claim 1, characterized in that: A synchronous motor (4) is provided on the outside of the bearing seat (2); one end of the output shaft of the synchronous motor (4) is fixedly connected to one end of the screw rod (3); the synchronous motor (4) is used for synchronous rotation of the screw rods (3) on both sides.

6. A cable tension testing machine according to claim 1, characterized in that: There are three adjusting screws (14), and the three adjusting screws (14) are arranged at equal distances on the movable pull rod (6).

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