Tensile machine testing device

Abstract

This utility model relates to the field of tensile testing machine technology, and more particularly to a tensile testing machine device. Its technical solution includes a mounting frame, a ring seat, a motor, a hydraulic rod, a tensile sensor, a mounting base, and a rotating ring. A central seat is disposed inside the mounting frame, and the tensile sensor and the hydraulic rod are disposed inside the central seat. A positioning ring is disposed at one end of both the tensile sensor and the hydraulic rod. A torsion spring is disposed between the positioning ring and the inner wall of the central seat. A ring seat is fixed inside the central seat, and a rotating ring is rotatably mounted inside the ring seat. A rotating seat is disposed on the inner wall of the rotating ring, and a rotating shaft is rotatably mounted inside the rotating seat. An impact block is disposed on the outer wall of the rotating shaft, and a force-bearing block corresponding to the impact block is disposed on the outer wall of the hydraulic rod. This utility model detects the force when a material is stretched using a tensile sensor, and by applying a torsional force to the material, it simulates the material's usage environment, obtaining highly valuable test data.

Description

Technical Field

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

[0002] A tensile testing machine, also known as a material testing machine or tensile testing machine, is a precision instrument used to test the mechanical properties of materials or components under stress. It mainly analyzes parameters such as the strength, ductility, and elastic modulus of materials by applying tensile, compressive, bending, or shear loads.

[0003] The conductors, ground wires, and fittings of power transmission lines, such as tension clamps and suspension clamps, need to withstand complex stresses such as wind loads, icing, and short-circuit electrodynamics. Tensile testing machines can only simulate horizontal tensile forces during use. However, the oscillation forces of these devices are irregular during use, and horizontal tensile forces alone cannot simulate real-world usage conditions, resulting in low reference value of the test data. Therefore, we propose a tensile testing machine device to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a tensile testing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensile testing machine, comprising a mounting frame, a ring seat, a motor, a hydraulic rod II, a tensile sensor, a mounting base, and a rotating ring. The mounting frame contains a central seat. A tensile sensor and a hydraulic rod II are respectively mounted on opposite sides of the central seat. Mounting bases are provided at opposite ends of the tensile sensor and hydraulic rod II. Symmetrically distributed clamping blocks are provided inside the mounting bases. Positioning rings are provided at opposite ends of the tensile sensor and hydraulic rod II. Torsion springs are provided on both the positioning rings and the inner wall of the central seat. A ring seat is fixed inside the central seat. A rotating ring is rotatably mounted inside the ring seat. Rotating seats arranged in a circular array are provided on the inner wall of the rotating ring. A rotating shaft is rotatably mounted inside the rotating seats. Impact blocks are provided on the outer wall of the rotating shaft. Torsion springs II, with their two ends connected to the rotating seats and impact blocks respectively, are sleeved on the outer side of the rotating shaft. Force-receiving blocks corresponding to the impact blocks are provided on the outer wall of the hydraulic rods.

[0006] Preferably, a second motor is provided at the upper end of the mounting base, and a screw is provided at the lower end of the second motor. The screw is rotatably mounted inside the mounting base, and its outer wall threads are relatively distributed and threadedly connected to the clamping block. When the screw rotates, the relatively distributed threads on its outer wall push the clamping plate to move relative to or away from each other.

[0007] Preferably, the outer wall of the clamping block is provided with a slider, and the inner wall of the mounting base is provided with a guide rail, with the slider slidably mounted inside the guide rail. The nut is guided by the slider sliding on the outer wall of the guide rail.

[0008] Preferably, one end of the positioning ring is provided with a mounting shaft that is rotatably mounted on the central seat and located inside the torsion spring. During use, the positioning ring fixes one end of the torsion spring, and the rotational force of the positioning ring is effectively applied to the torsion spring.

[0009] Preferably, the mounting frame contains symmetrically distributed docking frames, and the mounting frame also contains symmetrically distributed hydraulic rods whose telescopic ends are connected to the docking frames. When the hydraulic rods move longitudinally, they adjust the docking frames to shield the material during the testing process.

[0010] Preferably, the inner wall of the docking frame has a groove, which is positioned opposite the outer sides of the tension sensor and the hydraulic rod. The groove fits onto the outer sides of the tension sensor and the hydraulic rod to prevent interference with their operation when the docking frame is in contact.

[0011] Preferably, the outer wall of the rotating ring is provided with a gear ring, and a motor is provided on one side of the upper end of the ring seat. One end of the motor is provided with a gear that meshes with the gear ring. When the motor operates, it drives the gear to push the gear ring, thereby causing the rotating ring to rotate.

[0012] Preferably, the upper corner of the force-bearing block is provided with an arc, and a ball bearing is rotatably installed inside the lower end of the impact block. When the impact block passes through the force-bearing block, the arc surface reduces wear, and the ball bearing reduces resistance.

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

[0014] 1. This utility model uses two sets of symmetrically distributed clamping plates to hold the test material. During use, the hydraulic rod two pulls the test material, and the tensile force on the material is measured by a tension sensor. During this process, impact blocks arranged in a ring array inside the rotating ring impact the force-bearing blocks. The hydraulic rod one, which is supported by a torsion spring, has an impact force on the Y-axis. The elastic force of the torsion spring one compensates for this impact, preventing the metal material from being directly twisted. At the same time, it ensures that the material being viewed is subjected to the impact of torsional force, simulating the irregular swaying force of the material during external use, and improving the data reference value during the testing process. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side-view perspective of the three-dimensional structure of the mounting frame of this utility model.

[0017] Figure 3 This is a front-view three-dimensional structural diagram of the docking frame of this utility model;

[0018] Figure 4This is a front-view three-dimensional structural diagram of the tension sensor of this utility model;

[0019] Figure 5 This is a two-dimensional front view of the hydraulic rod of this utility model.

[0020] Reference numerals in the attached diagram: 1. Mounting frame; 2. Hydraulic rod one; 3. Connecting frame; 4. Center seat; 5. Mounting shaft; 6. Ring seat; 7. Gear ring; 8. Hydraulic rod two; 9. Ball bearing; 10. Motor one; 11. Gear; 12. Slot; 13. Positioning ring; 14. Tension sensor; 15. Motor two; 16. Mounting seat; 17. Clamping block; 18. Screw; 19. Torsion spring one; 20. Rotating ring; 21. Slider; 22. Guide rail; 23. Rotating seat; 24. Rotating shaft; 25. Torsion spring two; 26. Impact block; 27. Force-bearing block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, the tensile testing device proposed in this utility model includes a mounting frame 1, a ring seat 6, a motor, a hydraulic rod 8, a tensile sensor 14, a mounting base 16, and a rotating ring 20. A central seat 4 is provided inside the mounting frame 1. The tensile sensor 14 and the hydraulic rod 8 are respectively installed on both sides of the central seat 4. Mounting bases 16 are provided at opposite ends of the tensile sensor 14 and the hydraulic rod 8. Symmetrically distributed clamping blocks 17 are provided inside the mounting bases 16. The opposite ends of the tensile sensor 14 and the hydraulic rod 8 are... A positioning ring 13 is provided, and torsion springs are provided on the inner walls of the positioning ring 13 and the center seat 4. A ring seat 6 is fixed inside the center seat 4. A rotating ring 20 is rotatably installed inside the ring seat 6. Rotating seats 23 arranged in a ring array are provided on the inner wall of the rotating ring 20. A rotating shaft 24 is rotatably installed inside the rotating seat 23. An impact block 26 is provided on the outer wall of the rotating shaft 24. A torsion spring 25 is sleeved on the outer side of the rotating shaft 24, with its two ends connected to the rotating seat 23 and the impact block 26 respectively. A force-bearing block 27 corresponding to the impact block 26 is provided on the outer wall of the hydraulic rod.

[0023] The upper end of the mounting base 16 is provided with a motor 2 15, and the lower end of the motor 2 15 is provided with a screw 18 that is rotatably installed inside the mounting base 16 and whose outer wall threads are relatively distributed and threadedly installed with the clamping block 17.

[0024] The outer wall of the clamping block 17 is provided with a slider 21, and the inner wall of the mounting base 16 is provided with a guide rail 22. The slider 21 is slidably installed inside the guide rail 22.

[0025] One end of the positioning ring 13 is provided with a mounting shaft 5 that is rotatably mounted on the center seat 4 and located inside the torsion spring 19;

[0026] The mounting frame 1 is equipped with symmetrically distributed docking frames 3, and the mounting frame 1 is equipped with symmetrically distributed hydraulic rods 2 whose telescopic ends are connected to the docking frames 3.

[0027] The inner wall of the docking frame 3 is provided with a sleeve groove 12, which is located on the outer side of the tension sensor 14 and the hydraulic rod 8.

[0028] A gear ring 7 is provided on the outer wall of the rotating ring 20, and a motor 10 is provided on one side of the upper end of the ring seat 6. A gear 11 that meshes with the gear ring 7 is provided on one end of the motor 10.

[0029] The upper corner of the force-bearing block is provided with an arc corner, and the lower end of the impact block 26 is equipped with a rotating ball bearing 9;

[0030] Based on the implementation steps of Embodiment 1: First, the two ends of the test lead or fitting are fixed between the clamping blocks 17 of the two mounting bases 16. The screw 18 is driven to rotate by the second motor 15, and the symmetrical threads on its outer wall push the clamping blocks 17 to move towards each other along the guide rail 22 to achieve stable clamping of the test piece. The second hydraulic rod 8 is activated to apply axial tension to the test piece. The tension sensor 14 monitors the load data in real time. Simultaneously, the first motor 10 is activated to drive the gear 11 to rotate. Through the meshing transmission of the gear ring 7, the rotating ring 20 is driven to rotate in the ring seat 6, so that the impact blocks 26 distributed in a ring array periodically impact the force-bearing blocks 2 on the outer wall of the second hydraulic rod 8. 7. The lower ball bearing 9 of the impact block 26 and the upper arc angle of the force block 27 are engaged. While reducing contact wear, the rotational kinetic energy is converted into a Y-axis impact force perpendicular to the axial direction. During this process, the positioning ring 13 provides elastic torsional compensation for the hydraulic rod 8 through the torsion spring 19, avoiding the test piece from being damaged by pure shear force. Instead, the intermittent swing load in the actual working condition is simulated through the energy storage and release characteristics of the torsion spring 19 and the torsion spring 25. When it is necessary to protect the test area, the hydraulic rod 2 can be activated to push the docking frame 3 to close. Its inner wall groove 12 accurately avoids the tension sensor 14 and the hydraulic rod 8, forming a safe operating space.

[0031] This device breaks through the limitations of traditional tensile testing machines that only apply single axial loading. Through the combined action of mechanical impact and elastic torsion, it realistically reproduces the stress characteristics of transmission line materials under complex working conditions such as wind vibration and galloping. The rotating ring 20 is equipped with multiple sets of impact blocks 26 to form an asymmetric excitation source. Combined with the ball bearing 9-arc angle contact mechanism, the test piece is subjected to random pulsating loads with adjustable frequency and controllable amplitude. The direction of its force is superimposed with the axial tensile force in a spatial vector, accurately simulating the multi-degree-of-freedom coupled stress in actual working conditions. The elastic buffer system composed of torsion springs 19 not only avoids the material yielding distortion caused by direct torsion, but also realizes energy absorption and release through hysteresis deformation characteristics, more realistically reflecting the metal fatigue accumulation process. Compared with existing technologies, this device upgrades static tensile testing to dynamic multi-axial loading. The test data can simultaneously reflect the material's strength limit, fatigue resistance, and damping characteristics, providing three-dimensional mechanical parameter support for transmission line design.

[0032] Addressing the limitation of traditional tensile testing machines that can only simulate horizontal unidirectional loads, this device realistically reproduces the conditions of conductor galloping and fitting vibration caused by wind loads and icing through multi-degree-of-freedom load coupling. An elastic torsional compensation mechanism prevents materials from prematurely entering the plastic deformation stage, ensuring the accuracy of tensile strength testing. The modular 26-block layout allows for flexible configuration of the load spectrum, simulating stress characteristics under different terrain and climate conditions. The collaborative design of the protective frame and sensors balances operational safety and testing accuracy. This device significantly improves the comprehensiveness of mechanical performance evaluation of transmission line materials, providing more reliable testing data support for the safe operation of the power grid.

[0033] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tensile testing device, comprising a mounting frame (1), a ring seat (6), a motor, a hydraulic rod (8), a tensile sensor (14), a mounting base (16), and a rotating ring (20), characterized in that: The mounting frame (1) is provided with a central seat (4) inside. A tension sensor (14) and a hydraulic rod (8) are respectively installed on both sides of the central seat (4). A mounting base (16) is provided at one end of each of the tension sensor (14) and the hydraulic rod (8). Symmetrically distributed clamping blocks (17) are provided inside the mounting base (16). A positioning ring (13) is provided at one end of each of the tension sensor (14) and the hydraulic rod (8) opposite to each other. Torsion springs are provided on both the positioning ring (13) and the inner wall of the central seat (4). A ring seat (6) is fixed inside the seat (4). A rotating ring (20) is rotatably installed inside the ring seat (6). A rotating seat (23) arranged in a ring array is provided on the inner wall of the rotating ring (20). A rotating shaft (24) is rotatably installed inside the rotating seat (23). An impact block (26) is provided on the outer wall of the rotating shaft (24). A torsion spring (25) is sleeved on the outer side of the rotating shaft (24) and its two ends are respectively connected to the rotating seat (23) and the impact block (26). A force-bearing block (27) corresponding to the impact block (26) is provided on the outer wall of the hydraulic rod.

2. The tensile testing device according to claim 1, characterized in that: The upper end of the mounting base (16) is provided with a second motor (15), and the lower end of the second motor (15) is provided with a screw (18) which is rotatably installed inside the mounting base (16) and whose outer wall threads are relatively distributed and threadedly installed with the clamping block (17).

3. The tensile testing device according to claim 2, characterized in that: The outer wall of the clamping block (17) is provided with a slider (21), and the inner wall of the mounting base (16) is provided with a guide rail (22). The slider (21) is slidably installed inside the guide rail (22).

4. The tensile testing device according to claim 1, characterized in that: The positioning ring (13) has a mounting shaft (5) that is rotatably mounted on the center seat (4) and located inside the torsion spring (19).

5. The tensile testing device according to claim 1, characterized in that: The mounting frame (1) is provided with symmetrically distributed docking frames (3), and the mounting frame (1) is provided with symmetrically distributed hydraulic rods (2) whose telescopic ends are connected to the docking frames (3).

6. The tensile testing device according to claim 5, characterized in that: The inner wall of the docking frame (3) is provided with a sleeve groove (12), which is located on the outside of the tension sensor (14) and the hydraulic rod (8).

7. The tensile testing device according to claim 1, characterized in that: The outer wall of the rotating ring (20) is provided with a gear ring (7), and a motor (10) is provided on one side of the upper end of the ring seat (6). One end of the motor (10) is provided with a gear (11) that meshes with the gear ring (7).

8. The tensile testing device according to claim 1, characterized in that: The upper corner of the force-bearing block is provided with an arc angle, and the lower end of the impact block (26) is rotatably equipped with a ball bearing (9).

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