Current detection device of current transformer

Abstract

The invention relates to the technical field of current transformers, in particular to a current detection device for a current transformer, which comprises a detection table, a conveying mechanism, an intermittent switch mechanism and a plum blossom turntable, wherein the conveying mechanism is arranged on the outer side of the detection table; the intermittent switch mechanism is arranged on the side surface of the detection table; and the plum blossom turntable is rotationally arranged on the intermittent switch mechanism. Through the arrangement of the conveying mechanism and the intermittent switch mechanism, a motor drives a shifting rod to rotate in a small range so as to intermittently rotate a plum-blossom-shaped rotating disc, the plum-blossom-shaped rotating disc drives a pressing plate to extrude a switch so as to control a conveying belt to be started when rotating each time, and the conveying belt clamps current transformers one by one and intermittently conveys the current transformers to the position under a detector; in this way, the time for manually carrying and fixing the current transformers is shortened, the detection process is more continuous and efficient, detection can be started immediately after each current transformer is fixed, manual operation does not need to be waited, and therefore the overall detection period is shortened.

Description

Technical Field

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

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current based on the principle of electromagnetic induction. It consists of a closed iron core and windings. Its primary winding has very few turns and is connected in series with the current to be measured. During the production process, current transformers must be tested to prevent damage to the current transformer during subsequent use due to excessive current.

[0003] A Chinese patent with announcement number CN220305486U discloses a current detection device for a current transformer, comprising a base, a conveyor belt installed on the top of the base, a bracket and a detection component connected to the top of the base and on both sides of the conveyor belt, a lifting cylinder installed on the top of the bracket, the telescopic end of the lifting cylinder is connected to a connecting frame, and the bottom end of the connecting frame is connected to an L-shaped plate; the utility model provides a current detection device for a current transformer, when the conveyor belt transports the current transformer, the current transformer is intercepted by a fixed clamping plate, and then the flip cylinder extends to push the moving clamping plate to rotate 90° clockwise, and the horizontal cylinder contracts to drive the movable seat to move backward on the guide rod B, and then the fixed clamping plate and the moving clamping plate clamp the current transformer, and the detection component is used to perform current detection on the current transformer. This structure does not require staff to place and clamp the current transformer, reducing labor intensity.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing current transformer current detection device requires workers to install and place the transformer before testing, which results in inaccurate positioning of the transformer each time, consumes a lot of human resources, and affects the efficiency and quality of testing. Summary of the Invention

[0005] The present invention aims to solve the problem in the background technology that a current transformer cannot be automatically installed and accurately transported, and proposes a current transformer current detection device.

[0006] The technical solution of the present invention is a current transformer current detection device, comprising a detection platform; and further comprising:

[0007] The conveying mechanism is arranged on the outside of the testing platform and is used to transport the current transformers to the testing position one by one and clamp and fix the transformers during transportation;

[0008] Intermittent switch mechanism, which is arranged on the side of the test bench and is used to intermittently open the conveying mechanism, thereby cooperating with the device to intermittently transport the current transformer to complete the test work;

[0009] And the plum blossom turntable is rotatably arranged on the intermittent switch mechanism. There are multiple notches arranged in a ring on the plum blossom turntable. A lever is clamped on the plum blossom turntable. The lever rotates slightly under the drive of the intermittent switch mechanism. When the lever rotates to the notch, it fits with the notch, thereby driving the plum blossom turntable to rotate through the notch.

[0010] Preferably, the bottom of the testing table is provided with table legs, the top of the testing table is provided with a fixing frame, the top of the fixing frame is provided with a cylinder, the output end of the cylinder is provided with a push rod, and the bottom of the push rod is provided with a detector.

[0011] Preferably, the conveying mechanism includes a connecting frame, a feeding pipe, a support block and a conveying clamping assembly;

[0012] The connecting frame is arranged on the top of the workbench, the feeding pipe is arranged at the end of the connecting frame away from the workbench, and the supporting block is arranged on the side of the feeding pipe;

[0013] The conveying and clamping assembly is arranged on the outside of the workbench and is used to clamp the mutual inductors in the feeding pipe one by one and convey them forward.

[0014] Preferably, the conveying and clamping assembly includes a conveyor belt, a placement port, a chute and a spring;

[0015] The conveyor belt is arranged on the outside of the workbench, the placement port is arranged on the conveyor belt, the slide is arranged on the side of the placement port, the spring is arranged on the inside of the slide, a connecting rod is arranged at the end of the spring, a fixing rod is arranged at the top of the connecting rod, and a clamp is arranged at the end of the connecting rod away from the spring.

[0016] Preferably, the intermittent switch mechanism includes a rotating assembly and a switch assembly;

[0017] The rotating assembly is arranged on the side of the testing table and is used to intermittently rotate the plum blossom turntable;

[0018] The switch assembly is arranged on the rotating assembly and is used to open the conveying mechanism.

[0019] Preferably, the rotating assembly includes a motor, a rotating shaft, a first rotating rod and a second rotating rod;

[0020] The motor is arranged on the side of the testing table, the rotating shaft is arranged at the output end of the motor, the rotating rod 1 is arranged at the end of the rotating shaft away from the motor, the rotating rod 2 is rotatably arranged at the end of the rotating rod 1 away from the rotating shaft, the end of the rotating rod 2 is provided with a connecting shaft, and a sliding block is provided at one end of the rotating rod 2 of the connecting shaft, and a sliding track is provided on the outer side of the sliding block.

[0021] Preferably, the switch assembly includes a controller, a switch and a pressing plate;

[0022] The pressing plate is arranged on the side of the plum blossom turntable, the controller is arranged on the side of the detection table, and the switch is arranged on the side of the controller.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects: through the setting of the conveying mechanism and the intermittent switching mechanism, the motor drives the lever to rotate slightly, thereby intermittently rotating the plum blossom turntable. Each time the plum blossom turntable rotates, it drives the pressing plate to squeeze the switch, thereby controlling the start of the conveyor belt. The conveyor belt clamps the current transformers one by one and intermittently transports them to the bottom of the detector. This reduces the time for manual handling and fixing of the current transformers, making the detection process more continuous and efficient, and can start detection immediately after each current transformer is fixed, without waiting for manual operation, thereby shortening the overall detection cycle, and avoiding interference factors that may be introduced during manual operation, such as vibration, electromagnetic interference, etc., thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of an embodiment of the present invention;

[0025] Figure 2 Structural diagram of the conveying mechanism;

[0026] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0027] Figure 4 It is a structural diagram of the intermittent switch mechanism.

[0028] Figure numerals: 1, testing table; 2, table leg; 301, fixing frame; 302, cylinder; 303, push rod; 304, detector; 401, connecting frame; 402, feeding pipe; 403, placement port; 404, conveyor belt; 405, spring; 406, slide; 407, connecting rod; 408, fixing rod; 409, clamping block; 410, supporting block; 501, motor; 502, rotating shaft; 503, rotating rod 1; 504, rotating rod 2; 505, connecting shaft; 506, sliding block; 507, sliding track; 508, plum blossom turntable; 509, lever; 510, pressing plate; 511, switch; 512, controller. DETAILED DESCRIPTION

[0029] Example 1

[0030] like Figure 1-Figure 4 As shown, the current transformer current detection device proposed by the present invention includes a detection platform 1, a conveying mechanism, an intermittent switch 511 mechanism and a plum blossom turntable 508:

[0031] The conveying mechanism is arranged outside the testing platform 1 and is used to transport the current transformers to the testing position one by one and to clamp and fix the transformers during transportation;

[0032] The intermittent switch 511 mechanism is provided on the side of the testing platform 1, and is used to intermittently open the conveying mechanism, thereby cooperating with the device to intermittently transport the current transformer to complete the testing work;

[0033] The plum blossom turntable 508 is rotatably arranged on the intermittent switch 511 mechanism. A plurality of notches are arranged in a ring on the plum blossom turntable 508. A shift lever 509 is clamped on the plum blossom turntable 508. The shift lever 509 rotates slightly under the drive of the intermittent switch 511 mechanism. When the shift lever 509 rotates to the notch, it fits into the notch, thereby driving the plum blossom turntable 508 to rotate through the notch.

[0034] The bottom of the testing table 1 is provided with a table leg 2, the top of the testing table 1 is provided with a fixing frame 301, the top of the fixing frame 301 is provided with a cylinder 302, the output end of the cylinder 302 is provided with a push rod 303, and the bottom of the push rod 303 is provided with a detector 304. When the cylinder 302 is started, the cylinder 302 drives the push rod 303 to move, and the push rod 303 drives the detector 304 to move downward and insert into the transformer, thereby detecting the current of the transformer.

[0035] Example 2

[0036] like Figure 2-Figure 3 As shown, the current transformer current detection device proposed by the present invention, compared with the first embodiment, this embodiment introduces the structure of the transmission mechanism in detail.

[0037] The conveying mechanism includes a connecting frame 401, a feeding pipe 402, a support block 410 and a conveying clamping assembly; the connecting frame 401 is arranged on the top of the workbench, the feeding pipe 402 is arranged at the end of the connecting frame 401 away from the workbench, and the support block 410 is arranged on the side of the feeding pipe 402; the conveying clamping assembly is arranged on the outside of the workbench, and is used to clamp the mutual inductors in the feeding pipe 402 one by one and convey them forward. The conveying and clamping assembly includes a conveyor belt 404, a placement port 403, a chute 406 and a spring 405; the conveyor belt 404 is arranged on the outside of the workbench, the placement port 403 is arranged on the conveyor belt 404, the chute 406 is arranged on the side of the placement port 403, the spring 405 is arranged on the inner side of the chute 406, the end of the spring 405 is provided with a connecting rod 407, the top of the connecting rod 407 is provided with a fixing rod 408, and the end of the connecting rod 407 away from the spring 405 is provided with a clamping block 409. The conveyor belt 404 is arranged on the outside of the workbench, the placement port 403 is arranged on the conveyor belt 404, the chute 406 is arranged on the side of the placement port 403, the spring 405 is arranged on the inner side of the chute 406, and the end of the spring 405 is provided with a connecting rod 407. The fixing rod 408 is provided on the top of the connecting rod 407. The end of the connecting rod 407 away from the spring 405 is provided with a clamping block 409. When the placement port 403 moves below the feeding tube 402, the fixed rod 408 moves to the support block 410 to drive the support block 410 to move. At the same time, the current transformer falls into the placement port 403. At this time, the spring 405 is in a compressed state, so that the placement port 403 can drive a current transformer to move. When the fixed rod 408 is separated from the support block 410, the spring 405 drives the connecting rod 407 to clamp the current transformer, and the conveyor belt 404 drives the current transformer to be transported to the bottom of the detector 304.

[0038] Example 3

[0039] like Figure 4 As shown, the current transformer current detection device proposed by the present invention, compared with the first and second embodiments, this embodiment introduces the structure of the intermittent switch 511 mechanism in detail;

[0040] The intermittent switch 511 mechanism includes a rotating assembly and a switch 511 assembly; the rotating assembly is arranged on the side of the detection platform 1, and is used to intermittently rotate the plum blossom turntable 508; the switch 511 assembly is arranged on the rotating assembly, and is used to open the conveying mechanism. The rotating assembly includes a motor 501, a rotating shaft 502, a rotating rod 1 503 and a rotating rod 2 504; the motor 501 is arranged on the side of the detection platform 1, the rotating shaft 502 is arranged at the output end of the motor 501, the rotating rod 1 503 is arranged at the end of the rotating shaft 502 away from the motor 501, the rotating rod 2 504 is rotatably arranged at the end of the rotating rod 1 503 away from the rotating shaft 502, and the end of the rotating rod 2 504 is provided with a connecting shaft 505, and the connecting shaft 505 is provided with a sliding Block 506, a sliding track 507 is set on the outer side of the sliding block 506, and the end of the rotating rod 2 504 away from the connecting shaft 505 is connected to the toggle rod 509, and the motor 501 is started. The motor 501 drives the rotating shaft 502 to rotate, and the rotating shaft 502 drives the rotating rod 2 504 to rotate. Since the end of the rotating rod 2 504 is limited by the sliding block 506 and can only move laterally, the end of the rotating rod 2 504 connected to the toggle rod 509 can be rotated slightly, thereby intermittently toggling the plum blossom turntable 508. The switch 511 assembly includes a controller 512, a switch 511 and a pressing plate 510; the pressing plate 510 is arranged on the side of the plum blossom turntable 508, the controller 512 is arranged on the side of the detection platform 1, and the switch 511 is arranged on the side of the controller 512. When the plum blossom turntable 508 rotates, the pressing plate 510 is driven to rotate. When the pressing plate 510 rotates to the switch 511, it will squeeze the switch 511 to start the controller 512. After the controller 512 is turned on, it controls the conveyor belt 404 to turn on.

[0041] In summary, when the present invention is used, the current transformer is placed in the feeding pipe 402, and then the motor 501 and the cylinder 302 are started. The motor 501 drives the rotating shaft 502 to rotate, and the rotating shaft 502 drives the rotating rod 1 503 to rotate, and the rotating rod 1 503 drives the rotating rod 2 504 to rotate. Since the end of the rotating rod 2 504 is limited by the sliding block 506 and can only move horizontally, the end of the rotating rod 2 504 connected to the dial rod 509 can be rotated slightly, thereby intermittently dialing the plum blossom turntable 508. When the plum blossom turntable 508 rotates, it drives the pressing plate 510 to rotate. When the pressing plate 510 rotates to the switch 511, it squeezes the switch 511 to start the controller 512. After the controller 512 is turned on, it controls the conveyor belt 404 to start Start, the conveyor belt 404 moves on the detection table 1, and when the placement port 403 moves below the feeding pipe 402, the fixed rod 408 moves to the support block 410 to drive the support block 410 to move. At the same time, the current transformer falls into the placement port 403. At this time, the spring 405 is in a compressed state, so that the placement port 403 can drive a current transformer to move. When the fixed rod 408 is separated from the support block 410, the spring 405 drives the connecting rod 407 to clamp the current transformer, and the conveyor belt 404 drives the current transformer to be transported to the bottom of the detector 304. At this time, the cylinder 302 drives the push rod 303 to move, and the push rod 303 drives the detector 304 to move downward and insert it into the transformer, thereby detecting the current of the transformer.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A current transformer current detection device, comprising a detection station (1); characterized in that: Also includes: A conveying mechanism, which is arranged outside the testing platform (1) and is used to transport the current transformers one by one to the testing position and to clamp and fix the transformers during the transportation process; An intermittent switch (511) mechanism is provided on the side of the testing platform (1) and is used to intermittently open the conveying mechanism, thereby cooperating with the device to intermittently transport the current transformer and complete the testing work; The invention also provides a plum blossom turntable (508), wherein the plum blossom turntable (508) is rotatably arranged on an intermittent switch (511) mechanism, a plurality of notches are annularly arranged on the plum blossom turntable (508), a shifting rod (509) is clamped on the plum blossom turntable (508), and the shifting rod (509) rotates slightly under the drive of the intermittent switch (511) mechanism. When the shifting rod (509) rotates to the notch, it fits with the notch, thereby driving the plum blossom turntable (508) to rotate through the notch.

2. The current transformer current detection device according to claim 1, characterized in that: The bottom of the detection platform (1) is provided with a table leg (2), the top of the detection platform (1) is provided with a fixing frame (301), the top of the fixing frame (301) is provided with a cylinder (302), the output end of the cylinder (302) is provided with a push rod (303), and the bottom of the push rod (303) is provided with a detector (304).

3. The current transformer current detection device according to claim 1, characterized in that: The conveying mechanism comprises a connecting frame (401), a feeding pipe (402), a supporting block (410) and a conveying clamping assembly; The connecting frame (401) is arranged on the top of the workbench, the feeding pipe (402) is arranged at one end of the connecting frame (401) away from the workbench, and the supporting block (410) is arranged on the side of the feeding pipe (402); The conveying and clamping assembly is arranged on the outside of the workbench and is used to clamp the mutual inductors in the feeding pipe (402) one by one and convey them forward.

4. The current transformer current detection device according to claim 1, characterized in that: The conveying and clamping assembly includes a conveyor belt (404), a placement port (403), a chute (406) and a spring (405); The conveyor belt (404) is arranged on the outside of the workbench, the placement opening (403) is arranged on the conveyor belt (404), the slide groove (406) is arranged on the side of the placement opening (403), the spring (405) is arranged on the inner side of the slide groove (406), the end of the spring (405) is provided with a connecting rod (407), the top of the connecting rod (407) is provided with a fixing rod (408), and the end of the connecting rod (407) away from the spring (405) is provided with a clamping block (409).

5. The current transformer current detection device according to claim 1, characterized in that: The intermittent switch (511) mechanism includes a rotating assembly and a switch (511) assembly; The rotating assembly is arranged on the side of the detection platform (1) and is used for intermittently rotating the plum blossom turntable (508); The switch (511) component is arranged on the rotating component and is used to open the conveying mechanism.

6. The current transformer current detection device according to claim 5, characterized in that: The rotating assembly includes a motor (501), a rotating shaft (502), a rotating rod 1 (503) and a rotating rod 2 (504); The motor (501) is arranged on the side of the detection platform (1), the rotating shaft (502) is arranged at the output end of the motor (501), the rotating rod (503) is arranged at one end of the rotating shaft (502) away from the motor (501), the rotating rod (504) is rotatably arranged at one end of the rotating rod (503) away from the rotating shaft (502), the end of the rotating rod (504) is provided with a connecting shaft (505), the connecting shaft (505) is provided with a sliding block (506) at one end of the rotating rod (504), and the outer side of the sliding block (506) is slidably provided with a sliding track (507).

7. The current transformer current detection device according to claim 5, characterized in that: The switch (511) assembly includes a controller (512), a switch (511) and a pressing plate (510); The pressing plate (510) is arranged on the side of the plum blossom turntable (508), the controller (512) is arranged on the side of the detection platform (1), and the switch (511) is arranged on the side of the controller (512).

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