A bare copper conductor high strength tensile testing apparatus

Abstract

The utility model discloses a kind of high-strength tensile test equipment of bare copper conductor, the utility model relates to bare copper conductor detection technical field, including support platform, the left and right sides of support platform bottom are all fixedly connected with support plate, the inner chamber of support plate is movably connected with bidirectional screw rod by bearing, the left and right sides of bidirectional screw rod surface are all threadedly equipped with moving plate.The bare copper conductor resistance test strength testing device, by forward rotation hand-operated assembly, so that bidirectional screw rod forward rotation, two moving plates are synchronously moved outward, transverse test is carried out to bare copper conductor, subsequently manually push test table moves along rack plate, rack plate drives transmission gear to rotate forward at this time, so that two groups of connecting plates are relatively moved outward, longitudinal test is carried out to bare copper conductor, and then the test of multiple bare copper conductors can be realized, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bare copper conductor testing technology, specifically a high-strength tensile testing device for bare copper conductors. Background Technology

[0002] Bare copper conductors refer to pure copper conductive materials whose surfaces are not coated or plated, and they are widely used in fields such as power transmission, electrical equipment, and machinery manufacturing.

[0003] In the prior art, CN212084683U discloses a bare copper conductor harness, including a bare copper conductor layer, a first insulating layer connected to one surface in the thickness direction of the bare copper conductor layer, and a second insulating layer connected to the other surface in the thickness direction of the bare copper conductor layer. The first and second insulating layers are parallel. The length of the first insulating layer is shorter than the length of the bare copper conductor layer, and the distances formed by the two ends of the first insulating layer and the two ends of the bare copper conductor layer are equal. The length of the second insulating layer is shorter than the length of the bare copper conductor layer. One end of the second insulating layer is flush with one end of the bare copper conductor layer, and the other end of the second insulating layer is flush with the opposite end of the first insulating layer. A V-shaped reinforcing plate is provided at the end of the second insulating layer that is flush with the bare copper conductor layer. One end of the V-shaped reinforcing plate is attached to the side of the second insulating layer away from the bare copper conductor layer, and one end of the V-shaped reinforcing plate is flush with the corresponding end of the second insulating layer. The other end of the V-shaped reinforcing plate forms an angle of 30°-40° with the second insulating layer.

[0004] In the fields of power transmission and precision manufacturing, bare copper conductors are core conductive materials, and their mechanical properties, such as tensile strength and yield strength, directly affect product reliability. However, most existing bare copper conductor tensile testing devices test the bare copper conductors individually, resulting in low testing efficiency. To address this issue, we propose a high-strength tensile testing device for bare copper conductors. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-strength tensile testing device for bare copper conductors, solving the problem that existing bare copper conductor strength testing devices only test the bare copper conductor separately, resulting in low testing efficiency.

[0006] Therefore, according to the embodiments of this disclosure, a high-strength tensile testing device for bare copper conductors is proposed, including a support platform, with support plates fixedly connected to the left and right sides of the bottom of the support platform, a bidirectional lead screw movably connected to the inner cavity of the support plate through a bearing, and movable plates threaded on the left and right sides of the surface of the bidirectional lead screw, with a test platform fixedly provided on the top of the movable plate, and a Y-axis test assembly movably provided on the top of the support platform. The Y-axis test assembly includes a rack plate fixed to the top of the support platform. A transmission gear is installed at the bottom of the test platform through a bearing seat, and the transmission gear meshes with the rack plate. The transmission gear is coaxially connected to a bidirectional screw, and two sets of connecting plates are threaded on the surface of the bidirectional screw. The connecting plates are slidably connected to the inner cavity of the test platform.

[0007] According to an embodiment of this disclosure, the surface of the movable plate is slidably connected to the inner cavity of the support platform, and a hand crank assembly is fixedly connected to the left side of the bidirectional lead screw.

[0008] According to an embodiment of this disclosure, the bottom of the rack plate is fixedly connected to the top of the support platform, and there are two rack plates, which are symmetrically distributed front and back.

[0009] According to an embodiment of this disclosure, a clamping frame is fixedly provided on the top of the connecting plate, and a first limiting plate is fixedly connected to the top of the clamping frame. The clamping frame is a U-shaped steel structure with vertical sliding grooves opened on its inner walls on both sides, and a through-type limiting hole is opened on the first limiting plate.

[0010] According to an embodiment of this disclosure, a slide rod is slidably connected to the vertical slide groove cavity corresponding to the clamping frame. A pressure plate is fixedly provided at the bottom of the slide rod, and an anti-slip groove is provided at the bottom of the pressure plate. A second limiting plate is fixedly connected to the top of the slide rod. A slot is provided on the first limiting plate. The second limiting plate is slidably connected to the slot of the first limiting plate. A pull rod is fixedly connected inside the second limiting plate. Springs are elastically connected to the outer surface of the slide rod.

[0011] According to an embodiment of this disclosure, a first tensile tester is fixedly provided on both the front and rear sides of the top of the support platform, and the output end of the first tensile tester is movably connected to the surface inside the test platform.

[0012] According to an embodiment of this disclosure, a second tensile tester is fixedly provided on the top of the test bench, and the output end of the second tensile tester is movably connected to the side of the connecting plate near the moving plate.

[0013] This invention provides a high-strength tensile testing device for bare copper conductors. Compared with the prior art, it has the following advantages: This bare copper conductor tensile strength testing device uses anti-slip grooves to prevent the bare copper conductor from falling off during testing. A second limiting plate is fixed in place by a pin, thus securing the bare copper conductor. A forward-rotating hand crank assembly rotates the bidirectional lead screw, causing the two moving plates to move outwards synchronously for lateral testing of the bare copper conductor. Then, the test platform is manually pushed along the rack plate, which drives the transmission gear to rotate forward, causing the two connecting plates to move outwards relative to each other for longitudinal testing of the bare copper conductor. This allows for testing of multiple bare copper conductors, improving testing efficiency. After testing, the hand crank assembly is stopped, and the tensile forces on the first and second tensile testers are statistically analyzed. This device is simple to operate, requires no electricity, and is suitable for bare copper conductor testing in any environment. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This utility model Figure 1 Structural bottom view; Figure 3 This is a front view of the mobile component structure of this utility model; Figure 4 This is a front view of the internal structure of the Y-axis testing component of this utility model; Figure 5 This is the main view of the anti-fall-off structure of this utility model; Figure 6 This is a schematic diagram of the slide bar structure of this utility model; Figure 7 This is a partial structural diagram of the present invention.

[0015] Figure label: 1. Support platform; 2. Test platform; 3. First tensile tester; 4. Second tensile tester; 5. Support plate; 6. Moving plate; 7. Two-way lead screw; 8. Y-axis test assembly; 9. Hand crank assembly; 801. Rack plate; 802. Screw; 803. Transmission gear; 804. Connecting plate; 805. Clamping frame; 806. First limiting plate; 807. Second limiting plate; 808. Pull rod; 809. Slide rod; 810. Pressure plate; 811. Anti-slip groove; 812. Spring. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-7 This utility model provides a high-strength tensile testing device for bare copper conductors. The device includes a support platform 1. Support plates 5 are fixedly connected to the left and right sides of the bottom of the support platform 1. A bidirectional lead screw 7 is movably connected to the inner cavity of the support plate 5 via bearings. Moving plates 6 are threaded onto the left and right sides of the surface of the bidirectional lead screw 7. A testing platform 2 is fixedly mounted on the top of the moving plate 6.

[0018] A Y-axis testing assembly 8 is movably mounted on the top of the support platform 1. The Y-axis testing assembly 8 includes a rack plate 801 fixed to the top of the support platform 1. A transmission gear 803 is mounted on the bottom of the test platform 2 via a bearing seat. The transmission gear 803 meshes with the rack plate 801. The transmission gear 803 is coaxially connected to a bidirectional screw 802. Two sets of connecting plates 804 are threaded onto the surface of the bidirectional screw 802. The connecting plates 804 are slidably connected to the inner cavity of the test platform 2.

[0019] The first limiting plate 806 has a vertical groove extending through it along its height. A sliding rod 809 is slidably connected within the groove of the first limiting plate 806. A pressure plate 810 is fixedly provided at the bottom of the sliding rod 809, and an anti-slip groove 811 is provided at the bottom of the pressure plate 810. A second limiting plate 807 is fixedly connected to the top of the sliding rod 809. The first limiting plate 806 has a groove, and the second limiting plate 807 is slidably connected to the groove of the first limiting plate 806. A pull rod 808 is fixedly connected inside the second limiting plate 807, and springs 812 are elastically connected to the outer surface of the sliding rod 809.

[0020] Initially, spring 812 is in a compressed state, and pressure plate 810 is in contact with the bottom of clamping frame 805. Then, pull rod 808 is pulled upward, and pull rod 808 drives second limiting plate 807 to move upward within the groove of first limiting plate 806. During the movement of second limiting plate 807, sliding rod 809 connected to it moves upward. During the movement of sliding rod 809, pressure plate 810 is separated from the bottom of clamping frame 805. Then, bare copper conductor is placed between clamping frame 805 and pressure plate 810. Then, pull rod 808 is released, and spring 812 resets, causing second limiting plate 807 to move downward, thereby causing pressure plate 810 to press bare copper conductor tightly against the bottom of clamping frame 805. At this time, anti-slip groove 811 at the bottom of pressure plate 810 can effectively prevent conductor from sliding during testing. Next, the pin 808 is passed through the limiting hole of the first limiting plate 806 and the positioning hole of the second limiting plate 807 in sequence, thereby completing the quick clamping and fixing of the bare copper conductor.

[0021] After fixing, the forward-rotating hand crank assembly 9 drives the bidirectional lead screw 7 to rotate forward, causing the two moving plates 6 to move outward synchronously, thereby applying a transverse X-axis tensile force to the bare copper conductor for transverse testing. Subsequently, the test platform 2 is manually pushed to move along the rack plate 801; during the movement, the rack plate 801 drives the transmission gear 803 to rotate forward, which in turn drives the bidirectional lead screw 802 to rotate, causing the two sets of connecting plates 804 to move outward relative to each other, thereby applying a longitudinal Y-axis tensile force to the bare copper conductor for longitudinal testing. After the test, the hand crank assembly 9 is stopped, and the tensile force values ​​displayed on the first tensile tester 3 and the second tensile tester 4 are read and statistically analyzed.

[0022] The surface of the movable plate 6 is slidably connected to the inner cavity of the support platform 1. A hand crank assembly 9 is fixedly connected to the left side of the bidirectional lead screw 7.

[0023] The bidirectional lead screw 7 enables the two sets of moving plates 6 to move synchronously relative to each other, facilitating the testing of bare copper conductors.

[0024] The bottom of the rack plate 801 is fixedly connected to the top of the support platform 1. There are two rack plates 801. The two rack plates 801 are symmetrically distributed front and back.

[0025] By using the rack plate 801, the test stage 2 can move outward synchronously, allowing for longitudinal testing of the bare copper conductor.

[0026] The first tensile tester 3 is fixedly installed on both the front and rear sides of the top of the support platform 1, and the output end of the first tensile tester 3 is movably connected to the inner surface of the test platform 2. The first tensile tester 3 can be used to statistically analyze the lateral tensile force on bare copper conductors.

[0027] A second tensile tester 4 is fixedly installed on the top of the test bench 2. The output end of the second tensile tester 4 is movably connected to the side of the connecting plate 804 near the moving plate 6. The longitudinal tensile force on the bare copper conductor can be statistically analyzed using the second tensile tester 4.

[0028] The first tensile tester 3 and the second tensile tester 4 are both spring force gauges. A spring force gauge is a tool for measuring the magnitude of force and is used in physics and mechanics. It is mainly composed of a spring, a hook, and a scale plate. There are some things to pay attention to before and during its use. Within the elastic limit of a spring, the force acting on the spring is directly proportional to the magnitude of its elastic deformation. Firstly, any measurement involves comparing a physical quantity with a standard; force measurement is the process of comparing the effect of a force with the effect of a known force. If the effect of a force is the same as that of a one-Newton force, then the magnitude of this force is one Newton. Secondly, the elongation of a spring is directly proportional to the magnitude of the applied tension. Once the effect of a one-Newton force is determined, it is easy to determine the effects of larger and smaller forces. Furthermore, springs have good stability and can be reused. Therefore, a spring balance can be used to measure the magnitude of the force, thereby testing the resistance of bare copper conductors.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] During operation, the bare copper conductor is placed in the clamping frame 805. The anti-slip groove 811 prevents the bare copper conductor from falling off during the test. At this time, the forward-rotating hand crank assembly 9 causes the bidirectional lead screw 7 to rotate forward, and the two moving plates 6 move outward synchronously to perform a lateral test on the bare copper conductor. At the same time as the test platform 2 moves outward, the rack plate 801 drives the transmission gear 803 to rotate forward, causing the two sets of connecting plates 804 to move outward relative to each other to perform a longitudinal test on the bare copper conductor. After the bare copper conductor is tested, the rotation of the hand crank assembly 9 is stopped, and the tensile force on the first tensile tester 3 and the second tensile tester 4 is statistically analyzed. This device is simple to operate, requires no electric actuation, and is suitable for bare copper conductor testing in any environment.

Claims

1. A high-strength tensile testing device for bare copper conductors, comprising a support platform (1), characterized in that: Support plates (5) are fixedly connected to the left and right sides of the bottom of the support platform (1). A two-way screw (7) is movably connected to the inner cavity of the support plate (5) through a bearing. A movable plate (6) is threaded on the left and right sides of the surface of the two-way screw (7). A test platform (2) is fixedly provided on the top of the movable plate (6). A Y-axis test assembly (8) is movably provided on the top of the support platform (1). The Y-axis test assembly (8) includes a rack plate (801) fixed to the top of the support platform (1), and a transmission gear (803) is installed at the bottom of the test platform (2) through a bearing seat. The transmission gear (803) meshes with the rack plate (801). The transmission gear (803) is coaxially connected to a bidirectional screw (802). Two sets of connecting plates (804) are threaded on the surface of the bidirectional screw (802). The connecting plates (804) are slidably connected to the inner cavity of the test platform (2).

2. The high-strength tensile testing equipment for bare copper conductors according to claim 1, characterized in that: The surface of the movable plate (6) is slidably connected to the inner cavity of the support platform (1), and a hand crank assembly (9) is fixedly connected to the left side of the bidirectional lead screw (7).

3. The high-strength tensile testing equipment for bare copper conductors according to claim 1, characterized in that: The bottom of the rack plate (801) is fixedly connected to the top of the support platform (1). There are two rack plates (801), and the two rack plates (801) are symmetrically distributed front and back.

4. The high-strength tensile testing equipment for bare copper conductors according to claim 1, characterized in that: The top of the connecting plate (804) is fixedly provided with a clamping frame (805), and the top of the clamping frame (805) is fixedly connected with a first limiting plate (806). The clamping frame (805) is a U-shaped steel structure with vertical sliding grooves on its inner walls on both sides, and the first limiting plate (806) has a through-type limiting hole.

5. The high-strength tensile testing equipment for bare copper conductors according to claim 4, characterized in that: The clamping frame (805) is slidably connected to the vertical groove cavity of the sliding rod (809). The bottom of the sliding rod (809) is fixedly provided with a pressure plate (810). The bottom of the pressure plate (810) is provided with an anti-slip groove (811). The top of the sliding rod (809) is fixedly connected with a second limiting plate (807). The first limiting plate (806) is provided with a slot. The second limiting plate (807) is slidably connected to the slot of the first limiting plate (806). The inside of the second limiting plate (807) is fixedly connected with a pull rod (808). The outer surface of the sliding rod (809) is elastically connected with a spring (812).

6. The high-strength tensile testing equipment for bare copper conductors according to claim 1, characterized in that: The support platform (1) is fixedly provided with a first tensile tester (3) on both the front and rear sides of the top, and the output end of the first tensile tester (3) is movably connected to the surface inside the test platform (2).

7. The high-strength tensile testing equipment for bare copper conductors according to claim 1, characterized in that: The top of the test bench (2) is fixedly provided with a second tensile tester (4), and the output end of the second tensile tester (4) is movably connected to the side of the connecting plate (804) near the moving plate (6).

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