A current transformer testing device

Abstract

The present invention relates to the technical field of current transformer testing, and discloses a current transformer testing device, comprising a current transformer body, a wire threading groove is provided in the middle of the current transformer body, the wire threading groove is used to pass one or more wire harnesses for testing, a test display device is provided at the right end of the current transformer body, a test power supply terminal 1 is installed and distributed on the top of the current transformer body, a test power supply terminal 2 is fixedly distributed on the top of the test display device, a power supply line is connected between the test power supply terminal 1 and the test power supply terminal 2, a front sliding mechanism and a rear sliding mechanism are respectively provided near the left end of the front and rear portions of the current transformer body, a longitudinal adjustment mechanism is slidably connected to the bottom of the front and rear sliding mechanisms, and a wire harness positioning rolling mechanism is slidably connected above the front and rear sliding mechanisms. The present invention can adapt to the testing requirements of wire harnesses of different specifications and quantities, thereby improving the versatility and efficiency of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of current transformer testing, in particular to a current transformer testing device. Background Art

[0002] After production, current transformers are tested for performance to prevent substandard products from entering the market. Current transformer testing equipment is used to test current transformer performance. A current transformer has a hole for inserting a conductor and two current output terminals. During testing, a conductor is inserted through the hole, the output terminals are connected to a measuring instrument, and the rated current is passed through the conductor. The instrument then measures the current transformer's performance.

[0003] Existing test leads lack quick-connect components, and the leads must be threaded through the holes multiple times during testing, making the process inconvenient, time-consuming, and labor-intensive. This is particularly problematic when threading multiple wires, impacting current transformer testing efficiency and making it difficult to meet the testing requirements for wire harnesses of varying specifications and quantities. Therefore, a corresponding technical solution is needed to address this issue. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present invention provides a current transformer testing device to solve the technical problems thereof.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a current transformer testing device, comprising a current transformer body, a wire threading groove is provided in the middle of the current transformer body, the wire threading groove is used to pass one or more wire harnesses for testing, a test display device is provided at the right end of the current transformer body, a test power supply terminal 1 is installed and distributed on the top of the current transformer body, a test power supply terminal 2 is fixedly distributed on the top of the test display device, a power supply line is connected between the test power supply terminal 1 and the test power supply terminal 2, and a base is provided at the bottom of the current transformer body and the test display device;

[0008] A front sliding mechanism and a rear sliding mechanism are respectively provided near the left end of the front and rear parts of the current transformer body, and the front sliding mechanism and the rear sliding mechanism are used to limit the connection to the left end of the wire threading groove. The bottom of the front sliding mechanism and the rear sliding mechanism are slidably connected with a longitudinal adjustment mechanism, and the longitudinal adjustment mechanism is fixedly arranged at the front and rear ends of the base. The upper part of the front sliding mechanism and the rear sliding mechanism is slidably connected with a wire harness positioning rolling mechanism.

[0009] Preferably, mounting gaskets are fixedly provided at the lower ends of the front and rear parts of the current transformer body, mounting bolts are connected through the interior of the mounting gaskets, and wiring harness clamps are provided at the front and rear ends of the current transformer body, and the wiring harness clamps are located above the wire threading groove; the mounting gaskets are used to quickly disassemble and assemble the current transformer body to the top of the base, the mounting bolts are used for manual operation, and the cost is low, the base is used for firm support, ensuring the stability of the structure, and the wiring harness clamps are used to effectively prevent the wiring harness from accidentally slipping during the test, thereby enhancing the safety of the test process.

[0010] Preferably, the front sliding mechanism and the rear sliding mechanism both include a half ring, a bracket 1, a bottom block and a reinforcing plate, the half ring is a half-circular ring structure and a slide groove 1 is opened on the top, the bracket 1 is fixedly arranged at the middle of the bottom of the half ring, the bottom block is fixedly arranged at the bottom of the bracket 1, and the reinforcing plate is fixedly arranged at both ends between the bracket 1 and the bottom block; the reinforcing plate is used to enhance the structural strength of the bottom block, and the bracket 1 is used for downward stable support, thereby improving the load-bearing capacity and stability of the entire device, and maintaining good performance even under long-term or high-load test conditions.

[0011] Preferably, grooves are provided at both ends of the semi-ring located at the front sliding mechanism, and protrusions are fixed at both ends of the semi-ring located at the rear sliding mechanism, the grooves are semicircular groove structures, and the protrusions are semicircular protrusion structures; the cooperation between the grooves of the semicircular groove structure and the protrusions of the semicircular protrusion structure ensures that the semi-rings between the front sliding mechanism and the rear sliding mechanism are tightly connected, thereby enhancing the stability of the structure and avoiding shaking.

[0012] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is, for sliding the sliding panel to an upper end of the sliding panel, and the interlocking structure is fixed with a pin on the interlocking structure to form a round shank and a gear.

[0013] Preferably, the wiring harness positioning rolling mechanism includes a top plate and a roller, the top plate is located above the semi-ring, the roller is slidably connected to a slide groove, the interior of the roller is penetrated by an axle cylinder, the interior of the axle cylinder is penetrated by an axle rod, the outer end of the axle rod is provided with a support plate 1, the support plate 1 is fixedly arranged at the lower end of the top plate, the side end of the axle rod is penetrated by a drive motor 1, and a support plate is fixed between the drive motor 1 and the lower end of the top plate; the roller is used for limiting the support to move inside the slide groove 1, the axle cylinder is used to support the middle of the axle rod for stability, the support plate 1 is used to support the axle rod to the bottom of the top plate, the drive motor 1 is used to drive and control the rotation of the axle rod, and the support plate is used to fix the drive motor 1 to the lower end of the top plate.

[0014] Preferably, an extension plate 1 is fixed at the middle of the inner end of the top plate, and an extension plate 2 is fixed on both sides of the outer end of the top plate. The bottoms of the extension plate 1 and the extension plate 2 are fixed with extension shafts, and the bottoms of the extension shafts are respectively fixed with limit cylinders a and limit cylinders b, and the limit cylinders a and limit cylinders b are both slidably connected to the inner and outer ends of the semi-ring, and the bottoms of the limit cylinders a and limit cylinders b are fixed with limit disks, and the limit disks are limited to the lower end surface of the semi-ring; the extension plate 1 and the extension plate 2 are used to extend the fixed extension shaft toward the outer end of the top plate, and the extension shaft is used to rotate downward to support the limit cylinder a and the limit cylinder b, and the limit cylinder a and the limit cylinder b are used to limit the sliding to the inner and outer ends of the semi-ring, and the limit disk further limits the wiring harness positioning rolling mechanism to the lower end surface of the semi-ring, which is safe and reliable and avoids derailment.

[0015] Preferably, a fixed splint is fixedly provided near the inner end of the top of the top plate, and a movable splint is slidably connected to the outer end of the top of the top plate, and the inner ends of the fixed splint and the movable splint are both provided with a wiring harness groove; a push rod is installed at the bottom of the outer end of the movable splint, and the outer end of the push rod is connected to an electric push rod device, and a bracket 2 is fixedly provided near the inner end of the outside of the electric push rod device, and the bracket 2 is an L-shaped plate structure installed on the upper end surface of the top plate; the wiring harness groove is used to limit the wiring harness, so that the fixed splint and the movable splint clamp the wiring harness more stably, and the bracket 2 with the L-shaped plate structure is used to install the electric push rod device to the upper end surface of the top plate, and the electric push rod device and the push rod are used to telescopically adjust the movable splint.

[0016] Preferably, a second slide groove is provided near the outer end of the top of the top plate, and a limiting groove is provided at the bottom of the second slide groove; a bottom column is fixedly distributed at the bottom of the movable splint, and a slide is fixedly provided at the bottom of the bottom column, and the slide is slidably connected to the inside of the limiting groove; the double set of bottom columns are used to stably support the movable splint to the top of the slide, the second slide groove is used to limit the sliding bottom column, and the limiting groove is used to limit the sliding slide.

[0017] Preferably, support plates 2 are fixed at both ends of the bottom of the movable splint, the inner end of the support plate 2 is rotatably connected to a positioning shaft, the inner end of the positioning shaft is rotatably connected to a ball, and the ball is a spherical structure; support plate 2 is used to stably support the rotation of the positioning shaft, the positioning shaft is used to fix the ball supporting the spherical structure, and the ball of the spherical structure is used to contact the upper end surface of the top plate to assist in supporting the movable splint.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention has the following beneficial effects: through the longitudinal adjustment mechanism slidably connected at the bottom of the front sliding mechanism and the rear sliding mechanism, their relative movement and docking to form a ring can be automatically controlled, which is convenient for quick installation and disassembly; and through the harness positioning rolling mechanism slidably connected above the front sliding mechanism and the rear sliding mechanism, it is convenient to automatically position the harness to move in a circular trajectory, thereby realizing highly flexible adjustment of the test harness, being able to adapt to the testing requirements of harnesses of different specifications and quantities, improving the versatility and efficiency of the test, providing strong technical support for the testing work of current transformers, and having extremely high practical value and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall front upper perspective structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall rear lower perspective structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the longitudinal adjustment mechanism and the rear sliding mechanism of the present invention;

[0024] Figure 5 Schematic diagram of the longitudinal adjustment mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of the rear sliding mechanism and the harness positioning rolling mechanism from an upper perspective of the present invention;

[0026] Figure 7 This is a schematic diagram of the overall structure of the rear sliding mechanism and the harness positioning rolling mechanism of the present invention from a bottom perspective;

[0027] Figure 8 This is a schematic diagram of the structure of the wiring harness positioning rolling mechanism from a bottom perspective of the present invention;

[0028] Figure 9 It is a schematic diagram of the wiring harness positioning structure of the present invention;

[0029] Figure 10This is a schematic diagram of the limiting structure of the sliding positioning plate of the present invention;

[0030] Figure 11 This is a schematic diagram of the outer structure of the wiring harness positioning structure of the present invention;

[0031] Figure 12 For the present invention Figure 11 Enlarged structural diagram at point A in the middle.

[0032] In the figure, 1. current transformer body; 101. wire threading groove; 102. mounting gasket; 1021. mounting bolt; 103. test power supply terminal 1; 11. test display device; 111. test power supply terminal 2; 12. base; 13. power supply line; 14. wiring harness block; 2. front sliding mechanism; 21. groove; 3. rear sliding mechanism; 31. protrusion; 32. half ring; 321. slide 1; 33. bracket 1; 34. bottom block; 341. reinforcement plate; 4. wiring harness positioning rolling mechanism; 41. top plate; 411. extension plate 1; 412. extension plate 2; 413. slide 2; 4131. limit groove; 42. roller; 421. shaft cylinder; 422. shaft Rod; 423, support plate one; 424, drive motor one; 425, support plate; 43, limit cylinder a; 431, limit cylinder b; 432, limit disk; 433, extension shaft; 45, fixed splint; 451, harness groove; 46, movable splint; 461, bottom column; 462, slide plate; 47, electric push rod device; 471, push rod; 472, bracket two; 48, ball bearing; 481, positioning shaft; 482, support plate two; 5, longitudinal adjustment mechanism; 51, longitudinal plate; 511, slide groove three; 512, lead screw; 513, slide cylinder; 514, limit plate; 52, pillar; 521, reinforcement plate one; 522, reinforcement plate two; 53, fixed plate; 54, drive motor two. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-12The embodiment of the present invention provides a technical solution: a current transformer testing device, comprising a current transformer body 1, a wire groove 101 is provided in the middle of the current transformer body 1, the wire groove 101 is used to pass one or more wire harnesses for testing, a test display device 11 is provided at the right end of the current transformer body 1, a test power supply terminal 103 is installed and distributed on the top of the current transformer body 1, a test power supply terminal 2 111 is fixedly distributed on the top of the test display device 11, a power supply line 13 is connected between the test power supply terminal 103 and the test power supply terminal 2 111, and a base 12 is provided at the bottom of the current transformer body 1 and the test display device 11;

[0035] A front sliding mechanism 2 and a rear sliding mechanism 3 are respectively provided near the left end of the front and rear parts of the current transformer body 1. The front sliding mechanism 2 and the rear sliding mechanism 3 are used to limit the connection to the left end of the wire threading groove 101. The bottom of the front sliding mechanism 2 and the rear sliding mechanism 3 are slidably connected with a longitudinal adjustment mechanism 5. The longitudinal adjustment mechanism 5 is fixedly arranged at the front and rear ends of the base 12. The top of the front sliding mechanism 2 and the rear sliding mechanism 3 is slidably connected with a wire harness positioning rolling mechanism 4.

[0036] As a further improvement, mounting gaskets 102 are fixed to the lower ends of the front and rear parts of the current transformer body 1, and mounting bolts 1021 are connected through the interior of the mounting gaskets 102. The front and rear ends of the current transformer body 1 are both provided with wiring harness blocks 14, and the wiring harness blocks 14 are located above the wire threading groove 101.

[0037] The mounting gasket 102 is used to quickly disassemble and assemble the current transformer body 1 onto the top of the base 12. The mounting bolt 1021 is used for manual operation with low cost. The base 12 is used for firm support to ensure the stability of the structure. The wiring harness block 14 is used to effectively prevent the wiring harness from accidentally slipping during the test, thereby enhancing the safety of the test process.

[0038] Further improved, the front sliding mechanism 2 and the rear sliding mechanism 3 each include a half ring 32, a bracket 1 33, a bottom block 34 and a reinforcing plate 341. The half ring 32 is a half-circular ring structure with a slide groove 1 321 opened on the top. The bracket 1 33 is fixedly arranged at the middle of the bottom of the half ring 32. The bottom block 34 is fixedly arranged at the bottom of the bracket 1 33. The reinforcing plates 341 are fixedly arranged at both ends between the bracket 1 33 and the bottom block 34.

[0039] The reinforcing plate 341 is used to enhance the structural strength of the bottom block 34, and the bracket 1 33 is used for downward stable support, thereby improving the load-bearing capacity and stability of the entire device, and maintaining good performance even under long-term or high-load test conditions.

[0040] As a further improvement, grooves 21 are provided at both ends of the semi-ring 32 of the front sliding mechanism 2, and protrusions 31 are fixed at both ends of the semi-ring 32 of the rear sliding mechanism 3. The grooves 21 are semicircular groove structures, and the protrusions 31 are semicircular protrusion structures.

[0041] The cooperation between the groove 21 of the semicircular groove structure and the protrusion 31 of the semicircular protrusion structure ensures that the semi-ring 32 between the front sliding mechanism 2 and the rear sliding mechanism 3 is tightly connected, thereby enhancing the stability of the structure and avoiding shaking.

[0042] Further improved, the longitudinal adjustment mechanism 5 includes a longitudinal plate 51, a lead screw 512, a slide 513, a limit plate 514, a support 52, a fixed plate 53 and a second drive motor 54. A third slide groove 511 is provided above the longitudinal plate 51. The lead screw 512 is longitudinally rotatably connected to the inside of the third slide groove 511. The second drive motor 54 is fixed to the outer end of the longitudinal plate 51 and the output end is connected to the lead screw 512. The slide 513 is connected to the outside of the lead screw 512 by a thread. The limit plate 514 is fixed to the outer upper end of the slide 513 and is slidably connected to the inside of the third slide groove 511.

[0043] The support column 52 is fixed to the bottom of the longitudinal plate 51. A reinforcing plate 1 521 and a reinforcing plate 2 522 are fixedly distributed between the front and rear ends of the support column 52 and the bottom of the longitudinal plate 51, respectively. The fixing plate 53 is fixed to the bottom of the support column 52 and fixed to the outer end of the base 12.

[0044] The fixing plate 53 is used to fix the support pillar 52 to the outer end of the base 12, the reinforcement plate 1 521 and the reinforcement plate 2 522 are used to fix the longitudinal plate 51 with high strength, the drive motor 2 54 is used to drive the control screw 512 to rotate, the screw 512 is used to drive the slide 513 to rotate through the thread, and the limit plate 514 is used to assist the slide 513 to limit the internal longitudinal sliding adjustment of the slide groove 3 511.

[0045] Further improved, the harness positioning rolling mechanism 4 includes a top plate 41 and a roller 42, the top plate 41 is located above the semi-ring 32, the roller 42 is slidably connected to the slide groove 321, the roller 42 is connected to the inside of the shaft cylinder 421, the shaft cylinder 421 is connected to the inside of the shaft rod 422, the outer end of the shaft rod 422 is provided with a support plate 423, the support plate 423 is fixed to the lower end of the top plate 41, the side end of the shaft rod 422 is connected to the drive motor 424, and a support plate 425 is fixed between the drive motor 424 and the lower end of the top plate 41;

[0046] The roller 42 is used to limit the support to move inside the slide 321;

[0047] The shaft cylinder 421 is used to support the middle of the shaft rod 422 for stability, the support plate 423 is used to support the shaft rod 422 to the bottom of the top plate 41, the drive motor 424 is used to drive the control shaft rod 422 to rotate, and the support plate 425 is used to fix the drive motor 424 to the lower end of the top plate 41.

[0048] Further improved, an extension plate 1 411 is fixedly provided at the middle of the inner end of the top plate 41, and extension plates 2 412 are fixedly provided on both sides of the outer end of the top plate 41. An extension shaft 433 is fixedly provided at the bottom of the extension plate 1 411 and the extension plate 2 412. A limiting cylinder a43 and a limiting cylinder b431 are fixedly provided at the bottom of the extension shaft 433 respectively. The limiting cylinder a43 and the limiting cylinder b431 are both slidably connected to the inner and outer ends of the semi-ring 32. A limiting disk 432 is fixedly provided at the bottom of the limiting cylinder a43 and the limiting cylinder b431. The limiting disk 432 is limited to the lower end surface of the semi-ring 32.

[0049] Extension plate 1 411 and extension plate 2 412 are used to extend a fixed extension shaft 433 toward the outer end of the top plate 41. The extension shaft 433 is used to rotate downward to support the limiting cylinder a43 and the limiting cylinder b431. The limiting cylinder a43 and the limiting cylinder b431 are used to limit the sliding to the inner and outer ends of the semi-ring 32. The limiting plate 432 further limits the wiring harness positioning rolling mechanism 4 to the lower end surface of the semi-ring 32, which is safe and reliable and avoids derailment.

[0050] As a further improvement, a fixed clamping plate 45 is fixedly provided near the inner end of the top of the top plate 41, and a movable clamping plate 46 is slidably connected near the outer end of the top of the top plate 41. The inner ends of the fixed clamping plate 45 and the movable clamping plate 46 are both provided with a harness groove 451.

[0051] A push rod 471 is mounted on the bottom of the outer end of the movable clamping plate 46. The outer end of the push rod 471 is connected to the electric push rod device 47. A second bracket 472 is fixed to the outer end near the inner end of the electric push rod device 47. The second bracket 472 is an L-shaped plate structure mounted on the upper end surface of the top plate 41.

[0052] The wiring harness groove 451 is used to limit and clamp the wiring harness, so that the fixed clamp 45 and the movable clamp 46 clamp the wiring harness more stably. The L-shaped plate structure bracket 2 472 is used to install the electric push rod device 47 to the upper end surface of the top plate 41. The electric push rod device 47 and the push rod 471 are used to telescopically adjust the movable clamp 46.

[0053] As a further improvement, a second slide groove 413 is provided near the outer end of the top of the top plate 41, and a limiting groove 4131 is provided at the bottom of the second slide groove 413;

[0054] A bottom column 461 is fixedly provided at the bottom of the movable clamping plate 46. A slide plate 462 is fixedly provided at the bottom of the bottom column 461. The slide plate 462 is slidably connected to the interior of the limiting groove 4131.

[0055] The double-group bottom column 461 is used to stably support the movable clamping plate 46 to the top of the slide plate 462 , the second slide groove 413 is used to limit the sliding bottom column 461 , and the limiting groove 4131 is used to limit the sliding slide plate 462 .

[0056] Specifically, the two ends of the bottom of the movable splint 46 are fixed with a second support plate 482, the inner end of the second support plate 482 is rotatably connected to the positioning shaft 481, and the inner end of the positioning shaft 481 is rotatably connected to the ball 48, which is a spherical structure.

[0057] The second support plate 482 is used to stably support the rotation of the positioning shaft 481. The positioning shaft 481 is used to fix and support the ball 48 of the spherical structure. The ball 48 of the spherical structure is used to contact the upper end surface of the top plate 41 to assist in supporting the moving clamping plate 46.

[0058] Working principle: First, place the current transformer body 1 on the base 12, and use the mounting bolts 1021 to fasten the installation through the mounting gasket 102. Install the test power terminal 1 103 to the top of the current transformer body 1, and then install it to the upper end of the test display device 11 through the test power terminal 2 111. Power is supplied through the power supply line 13 for testing, and the test results are displayed on the test display device 11.

[0059] Place the end of the test harness between the fixed clamping plate 45 and the movable clamping plate 46 of the harness positioning and rolling mechanism 4, start the electric push rod device 47 to automatically control the push rod 471 to adjust the extension and contraction, and at the same time pass through the harness slot 451 to stably clamp the harness;

[0060] Then, the second drive motor 54 is started to automatically control the rotation of the lead screw 512. The action of the thread controls the slide 513 and the limit plate 514 to slide in the third slide groove 511, thereby driving the front sliding mechanism 2 and the rear sliding mechanism 3 to move relative to each other. The groove 21 and the protrusion 31 are precisely connected, so that the half ring 32 is annular.

[0061] Then, the driving motor 1 424 is started to automatically control the rotation of the shaft 422, so that the roller 42 is limited to move at the slide groove 1 321, and at the same time, it is limited to the inner and outer ends of the half rings 32 of the front sliding mechanism 2 and the rear sliding mechanism 3 through multiple sets of limiting cylinders a43 and limiting cylinders b431 to assist in sliding;

[0062] The automatically positioned wiring harness passes through the wire duct 101 and moves in a circular trajectory. Wiring harnesses of different specifications and quantities can be selected according to test requirements, thereby improving the versatility and efficiency of the test.

[0063] The current transformer body of the present invention includes: a wire threading groove 101, a mounting gasket 102, a mounting bolt 1021, a test power supply terminal 103, a test display device 11, a test power supply terminal 2 111, a base 12, a power supply line 13, a wiring harness block 14, a front sliding mechanism 2, a groove 21, a rear sliding mechanism 3, a protrusion 31, a half ring 32, a slide groove 1 321, a bracket 1 33, a bottom block 34, a reinforcing plate 341, a wiring harness positioning rolling mechanism 4, a top plate 41, an extension plate 1 411, an extension plate 2 412, a slide groove 2 413, a limiting groove 4131, a roller 42, Shaft cylinder 421, shaft 422, support plate 1 423, drive motor 1 424, support plate 425, limit cylinder a43, limit cylinder b431, limit plate 432, extension shaft 433, fixed splint 45, harness groove 451, movable splint 46, bottom column 461, slide plate 462, electric push rod device 47, push rod 471, bracket 2 472, ball bearing 48, positioning shaft 481, support plate 2 482, longitudinal adjustment mechanism 5, longitudinal plate 51, slide groove 3 511, screw 512, slide cylinder 513, limit plate 514, pillar 52, reinforcement plate 1 521, reinforcement plate Second 522, fixed plate 53, drive motor second 54, components are all universal standard parts or components known to those skilled in the art, and their structures and principles are all known to those skilled in the art through technical manuals or through conventional experimental methods. The problem solved by the present invention is that the test wire has no quick-connect components, and the wire needs to pass through the insertion hole multiple times during the test process, which is inconvenient to operate, time-consuming and labor-intensive. If multiple strands of wire harness need to be inserted, it is even more inconvenient, affecting the test efficiency of the current transformer, and it is difficult to meet the testing requirements of wire harnesses of different specifications and quantities. The present invention combines the above components with each other, and through the longitudinal adjustment mechanism 5 slidably connected at the bottom of the front sliding mechanism 2 and the rear sliding mechanism 3, it can automatically control their relative movement and docking to form a ring, which is convenient for rapid installation and disassembly, and through the wire harness positioning rolling mechanism 4 slidably connected above the front sliding mechanism 2 and the rear sliding mechanism 3, it is convenient to automatically position the wire harness to move in a circular trajectory, thereby realizing highly flexible adjustment of the test wire harness, being able to adapt to the testing requirements of wire harnesses of different specifications and quantities, improving the versatility and efficiency of the test, providing strong technical support for the testing work of the current transformer, and having extremely high practical value and promotion prospects.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0065] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A current transformer testing device, comprising a current transformer body (1), characterized in that: A wire threading groove (101) is provided in the middle of the current transformer body (1), a test display device (11) is provided at the right end of the current transformer body (1), a test power supply terminal 1 (103) is installed and distributed on the top of the current transformer body (1), a test power supply terminal 2 (111) is fixedly distributed on the top of the test display device (11), a power supply line (13) is connected between the test power supply terminal 1 (103) and the test power supply terminal 2 (111), and a base (12) is provided at the bottom of the current transformer body (1) and the test display device (11); A front sliding mechanism (2) and a rear sliding mechanism (3) are respectively provided near the left end of the front and rear parts of the current transformer body (1), and the front sliding mechanism (2) and the rear sliding mechanism (3) are used for limiting and clamping to the left end of the threading groove (101); the bottoms of the front sliding mechanism (2) and the rear sliding mechanism (3) are slidably connected to a longitudinal adjustment mechanism (5), and the longitudinal adjustment mechanism (5) is fixedly arranged at the front and rear ends of the base (12); the upper parts of the front sliding mechanism (2) and the rear sliding mechanism (3) are slidably connected to a wire harness positioning rolling mechanism (4); The front sliding mechanism (2) and the rear sliding mechanism (3) both include a half ring (32), a bracket (33), a bottom block (34) and a reinforcing plate (341), wherein the half ring (32) is a half-circular ring structure and has a slide groove (321) on the top, the bracket (33) is fixedly arranged at the middle of the bottom of the half ring (32), the bottom block (34) is fixedly arranged at the bottom of the bracket (33), and the reinforcing plate (341) is fixedly arranged at both ends between the bracket (33) and the bottom block (34); Grooves (21) are provided at both ends of the semi-ring (32) located on the front sliding mechanism (2), and protrusions (31) are fixedly provided at both ends of the semi-ring (32) located on the rear sliding mechanism (3). The grooves (21) are semicircular groove structures, and the protrusions (31) are semicircular protrusion structures.

2. A current transformer testing device according to claim 1, characterized in that: The front and rear lower ends of the current transformer body (1) are both fixedly provided with mounting gaskets (102), the interior of the mounting gasket (102) is penetrated and connected with mounting bolts (1021), and the front and rear ends of the current transformer body (1) are both provided with wiring harness blocks (14), and the wiring harness blocks (14) are located above the wire threading groove (101).

3. A current transformer testing device according to claim 1, characterized in that: The longitudinal adjustment mechanism (5) includes a longitudinal plate (51), a lead screw (512), a slide (513), a limit plate (514), a support (52), a fixed plate (53) and a second drive motor (54); a third slide groove (511) is provided on the top of the longitudinal plate (51); the lead screw (512) is connected to the inside of the third slide groove (511) in a longitudinally rotating manner; the second drive motor (54) is fixed to the outer end of the longitudinal plate (51) and the output end is connected to the lead screw (512); the slide (513) is connected to the outside of the lead screw (512) by a thread; the limit plate (514) is fixed to the outer upper end of the slide (513) and is slidably connected to the inside of the third slide groove (511); The support (52) is fixedly arranged at the bottom of the longitudinal plate (51), and a reinforcing plate 1 (521) and a reinforcing plate 2 (522) are fixedly arranged between the front and rear ends of the support (52) and the bottom of the longitudinal plate (51), respectively. The fixing plate (53) is fixedly arranged at the bottom of the support (52) and fixedly arranged at the outer end of the base (12).

4. A current transformer testing device according to claim 1, characterized in that: The harness positioning rolling mechanism (4) includes a top plate (41) and a roller (42), wherein the roller (42) is slidably connected to a slide groove (321), a shaft cylinder (421) is connected to the inside of the roller (42), a shaft rod (422) is connected to the inside of the shaft cylinder (421), a support plate (423) is provided at the outer end of the shaft rod (422), the support plate (423) is fixed to the lower end of the top plate (41), a drive motor (424) is connected to the side end of the shaft rod (422), and a support plate (425) is fixed between the drive motor (424) and the lower end of the top plate (41).

5. A current transformer testing device according to claim 4, characterized in that: An extension plate 1 (411) is fixedly provided at the middle of the inner end of the top plate (41), and extension plates 2 (412) are fixedly provided on both sides of the outer end of the top plate (41). An extension shaft (433) is fixedly provided at the bottom of each of the extension plates 1 (411) and the extension plate 2 (412). A limiting cylinder a (43) and a limiting cylinder b (431) are fixedly provided at the bottom of each of the extension shafts (433). Both the limiting cylinder a (43) and the limiting cylinder b (431) are slidably connected to the inner and outer ends of the semi-ring (32). A limiting disk (432) is fixedly provided at the bottom of each of the limiting cylinder a (43) and the limiting cylinder b (431). The limiting disk (432) is limited to the lower end surface of the semi-ring (32).

6. A current transformer testing device according to claim 5, characterized in that: A fixed clamping plate (45) is fixedly provided near the inner end of the top of the top plate (41), and a movable clamping plate (46) is slidably connected near the outer end of the top of the top plate (41), and a harness groove (451) is provided at the inner ends of the fixed clamping plate (45) and the movable clamping plate (46); A push rod (471) is installed at the bottom of the outer end of the movable splint (46), and the outer end of the push rod (471) is connected to an electric push rod device (47). A bracket 2 (472) is fixed near the inner end of the outer portion of the electric push rod device (47), and the bracket 2 (472) is an L-shaped plate structure installed on the upper end surface of the top plate (41).

7. A current transformer testing device according to claim 6, characterized in that: A second slide groove (413) is provided near the outer end of the top of the top plate (41), and a limiting groove (4131) is provided at the bottom of the second slide groove (413); A bottom column (461) is fixedly provided at the bottom of the movable splint (46), a slide plate (462) is fixedly provided at the bottom of the bottom column (461), and the slide plate (462) is slidably connected to the interior of the limiting groove (4131).

8. A current transformer testing device according to claim 7, characterized in that: A second support plate (482) is fixedly provided at both ends of the bottom of the movable splint (46), the inner end of the second support plate (482) is rotatably connected to a positioning shaft (481), and the inner end of the positioning shaft (481) is rotatably connected to a ball (48), and the ball (48) is a spherical structure.

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