Function detection device of circuit breaker

Abstract

The invention discloses a function detection device of a circuit breaker, and relates to the technical field of circuit breakers. The three-axis positioning assembly is arranged on the base frame and comprises a belt transmission support, a lifting support arranged on the belt transmission support and a clamping assembly installed on the lifting support and used for assembling and connecting a circuit breaker; the circuit breaker is driven to move in the X, Y and Z directions through the three-axis positioning assembly, multi-site adjustment of the circuit breaker is achieved, the comprehensive performance of the circuit breaker is optimized, the field fault risk is reduced, a solid guarantee is provided for safe operation of a complex power system, and the fault simulation device is suitable for popularization and application. Meanwhile, the circuit breaker is tested at different sites, the circuit breaker test can be calibrated and optimized, the precision of a fault simulation assembly is improved, and error actions are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a function detection device for a circuit breaker. Background Art

[0002] Circuit breakers, whose primary function is to interrupt circuits when current flow is abnormal, are crucial control and protection devices in power systems, and their performance is directly related to the stability and safety of the power system. Testing can promptly identify and address potential issues, preventing power system accidents caused by circuit breaker failures. This plays a vital role in protecting expensive equipment from damage.

[0003] However, existing detection devices are mostly single static test processes with single test points, which makes it inconvenient to simulate various fault conditions of circuit breakers, such as overload, short circuit, etc. Therefore, a functional detection device for circuit breaker is designed. Summary of the Invention

[0004] The purpose of the present invention is to provide a functional testing device for a circuit breaker. This device uses a three-axis positioning component to drive the circuit breaker to move in the X, Y, and Z directions, thereby realizing multi-position adjustment of the circuit breaker. This not only optimizes the overall performance of the circuit breaker, but also reduces the risk of on-site failures, providing a solid guarantee for the safe operation of complex power systems. At the same time, by testing the circuit breaker at different positions, the circuit breaker test can be calibrated and optimized, thereby improving the accuracy of the fault simulation component and reducing erroneous operation.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a functional detection device for a circuit breaker, comprising: a base frame; a three-axis positioning assembly provided on the base frame, the three-axis positioning assembly comprising a belt drive bracket, a lifting bracket provided on the belt drive bracket, and a clamping assembly installed on the lifting bracket for assembling and connecting the circuit breaker, wherein when the belt drive bracket is in operation, it can drive the clamping assembly to move in the X and Y directions, and when the lifting bracket is in operation, it is used to drive the clamping assembly to move in the Z direction; and a fault simulation assembly provided on the base frame, for simulating a fault condition of the circuit breaker.

[0006] Preferably, the belt drive bracket includes vertical plates respectively fixed at both ends of the base frame, the vertical plates are provided with slide grooves, the slide grooves are provided with sliders, and two first wheel bodies rotatably mounted on the sliders; and a driving wheel assembly and a second wheel body respectively arranged at both ends of each of the vertical plates, wherein the driving wheel assembly includes a mounting frame fixed on the vertical plate, a driving motor fixed to the top of the mounting frame, and a third wheel body fixed to the output end of the driving motor; a horizontal plate fixed between the two sliders, a slide seat being slidably mounted on the horizontal plate; and a transmission belt which is sleeved between the first wheel body, the second wheel body and the third wheel body, passes through the slide seat and is fixed to the slide seat.

[0007] Preferably, the lifting bracket includes a first machine plate fixed on both sides of the slide seat, a second machine plate fixed on each of the first machine plates, and two assembly plates fixed at both ends of each of the second machine plates, and each of the assembly plates is provided with a limit block on the upper and lower sides respectively; it also includes a vertical rail that is limited in longitudinal sliding with the limit block, and a U-shaped seat for assembling the clamping component is provided on the top of the vertical rail; and two sets of meshing drive components installed on the base frame, which are used to drive the longitudinal sliding of the vertical rail.

[0008] Preferably, each group of the meshing drive assembly includes two mounting frames fixed to the base frame, each of the mounting frames being provided with a vertical slot; mounting members respectively fixed to both ends of the second machine plate, each of the second machine plate being provided with a rotatable connecting rod, wherein the opposite ends of the two connecting rods are fixed to the output ends of the dual-axis motor provided in the middle of the second machine plate, and the opposite ends thereof respectively extend into the two vertical slots and are fixed with gears; and a rack fixed to the side wall of each of the vertical rails, and the two racks are respectively engaged with two gears.

[0009] Preferably, the clamping assembly includes a support seat for placing the circuit breaker, guide bars are respectively provided at the corners of the support seat, and an electric block is provided at the outer end of the guide bar, which is adapted to be fixed to the groove where the U-shaped seat is located; a plurality of wires are provided on each of the guide bars and connected to the circuit breaker; and a transmission block rotatably mounted with the U-shaped seat through a pin provided on the U-shaped seat, wherein one end of the transmission block is provided with a conductive bar adapted to be connected to the electric block, and the other end thereof is provided with an outward extension joint electrically connected to the conductive bar; and also includes a clamping member provided on each transmission block near the conductive bar, which is used for clamping and fixing the circuit breaker.

[0010] Preferably, each of the U-shaped seats is provided with a hinge and an electric telescopic rod provided on the hinge, and the telescopic end of the electric telescopic rod is rotatably mounted on the transmission block via a rotating shaft.

[0011] Preferably, each of the clamping members includes a mounting rod fixed to the end of the transmission block away from the outward expansion joint, a mounting plate fixed to the mounting rod; a through hole provided at the end of the mounting plate away from the mounting rod, a telescopic column provided in the through hole; and a connecting plate and a heat conducting plate respectively fixed to both ends of the telescopic column, wherein a spring is provided on the outer arm sleeve of the telescopic column between the connecting plate and the mounting plate, and the heat conducting plate can contact the top of the circuit breaker.

[0012] Preferably, the fault simulation component includes an AC current module, a DC power supply module and a load module, wherein the AC current module and the DC power supply module are arranged on one side of the base and distributed upper and lower; the load module includes a frame respectively fixed at both ends of the back side of the base, and porcelain tubes are provided on the opposite surfaces of the two frames; a resistance wire is provided on the porcelain tube, and an electrical connector is provided at one end of the resistance wire; and a slip ring joint is provided on the electrical connector, and a limited conductive slot is provided on the slip ring joint; and also includes a conductive rod provided on one of the outward-extending joints, and the conductive rod can be adapted to fit the limited conductive slot.

[0013] Preferably, a refrigeration box is provided on a side of the base frame away from the AC current module and the DC power supply module, and a refrigeration component is provided on the refrigeration box.

[0014] Preferably, the back side of the base frame is further provided with a controller, a support frame provided on the top of the controller; and a cover shell fixed on the support frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention uses a three-axis positioning assembly to drive the circuit breaker to move in the X, Y, and Z directions to achieve multi-position adjustment of the circuit breaker. This design not only avoids the blind spots of single-position testing, but also improves the accuracy of the fault simulation component, aligning the actual response with the nominal parameters, reducing erroneous operation, and simultaneously verifying the performance of the circuit breaker under different installation locations, heights, and other conditions, thereby avoiding functional abnormalities caused by environmental changes.

[0017] 2. As another embodiment of the present invention, there are preferably four clamping members and they are symmetrically distributed on the left and right. As shown in the figure, the mounting rod, mounting plate and transmission block on which each clamping member is located are fixed, and the telescopic column telescopically mounted on the mounting plate can realize the abutment and disengagement process between the heat conducting plate at the bottom end of the telescopic column and the top of the circuit breaker when the connecting plate is pulled out, thereby realizing the clamping, fixing and disassembly process of the circuit breaker, further adapting to different circuit breakers and reducing positioning errors.

[0018] 3. As other embodiments of the present invention, the AC current module and DC power supply module provided in this device are both existing mature technologies. Specifically, the current / voltage can be precisely adjusted through the frequency converter and the electronic load to simulate overload, short circuit and other working conditions; when the connecting wires where the AC current module and the DC power supply module are located are connected to the extension connector, the AC current module and the DC power supply module can support the simulation of different power grid conditions, and the resistance wire where the load module is located is externally insulated. When the electrical connector is connected to the power supply, and the limiting conductive groove on the slip ring connector is plugged into the conductive rod to realize the connection between the load module and the circuit breaker, when operating the position of the circuit breaker on the three-axis positioning assembly, specifically moving the sliding slip ring connector horizontally and adjusting the position of the slip ring connector on the resistance wire can realize the adjustment of the resistance value between the electrical connector and the slip ring connector, thereby simulating overload, short circuit and other working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0020] Figure 2 is a schematic diagram of the third perspective structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention;

[0022] Figure 4 It is a schematic diagram of the top view of the structure of the present invention;

[0023] Figure 5 It is a side structural schematic diagram of the present invention;

[0024] Figure 6 It is a schematic diagram of the enlarged structure at A;

[0025] Figure 7 It is a schematic diagram of the enlarged structure at B;

[0026] Figure 8 for Figure 1 Schematic diagram of a local enlarged structure;

[0027] Figure 9 Schematic diagram of the enlarged structure at point C.

[0028] In the figure: 111, base frame; 211, vertical plate; 212, slide; 213, slider; 214, first wheel body; 215, second wheel body; 216, transmission belt; 217, mounting frame; 218, motor; 219, third wheel body; 220, horizontal plate; 221, slide seat; 311, first machine plate; 312, second machine plate; 313, assembly plate; 314, limit block; 315, vertical rail; 316, U-shaped seat; 317, mounting frame; 318, rack; 319, dual-axis motor; 320, connecting rod; 321, mounting piece; 322, gear; 323, support seat; 324, guide bar; 325, wire; 326, electric block; 327, connecting rod; 328, guide bar; 329, guide bar; 330, guide bar; 331, guide bar; 332, guide bar; 333, guide bar; 334, guide bar; 335, guide bar; 336, electric block; 337, connecting rod; 338, connecting rod; 339, connecting rod; 340, connecting rod; 341, connecting rod; 342, guide bar; 343, guide bar; 344, guide bar; 345, guide bar; 346, electric block; 347, connecting rod; 348, connecting rod; 349, connecting rod; 350, connecting rod; 351, connecting rod; 352, connecting rod; 353, connecting rod; 354, connecting rod; 355, connecting rod; 356, connecting rod; 357, connecting rod; 358, connecting rod; 359, connecting rod; 360, connecting rod; 361, connecting rod; 7. Pin; 328. Transmission block; 329. Extension joint; 330. Hinge; 331. Electric telescopic rod; 332. Mounting rod; 333. Mounting plate; 334. Telescopic column; 335. Connecting plate; 336. Heat conducting plate; 337. Spring; 338. Temperature sensor; 411. Refrigeration box; 412. Refrigeration unit; 413. AC current module; 414. DC power supply module; 511. Frame; 512. Porcelain tube; 513. Slip ring joint; 514. Limiting conductive groove; 515. Conductive rod; 516. Resistance wire; 517. Electrical connector; 611. Support frame; 612. Cover; 613. Controller; 101. Circuit breaker. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0030] Example 1

[0031] See also Figures 1 to 9 The present invention preferably provides a technical solution: a functional detection device for a circuit breaker, comprising: a base frame 111; a three-axis positioning assembly provided on the base frame 111, the three-axis positioning assembly comprising a belt drive bracket, a lifting bracket provided on the belt drive bracket, and a clamping assembly installed on the lifting bracket for assembling and connecting the circuit breaker 101, and when the belt drive bracket is running, it can drive the clamping assembly to move in the X and Y directions, and when the lifting bracket is running, it is used to drive the clamping assembly to move in the Z direction; and a fault simulation assembly provided on the base frame 111, for simulating the fault condition of the circuit breaker 101.

[0032] In this embodiment, the three-axis positioning assembly provided on the base frame 111 can drive the circuit breaker 101 placed thereon to move in the X, Y, and Z directions, thereby realizing multi-position adjustment of the circuit breaker 101. The multiple position switching during the functional testing of the circuit breaker 101 not only exposes potential mechanical jamming, poor contact, or uneven wear issues, but also avoids blind spots in single-position testing. It also improves the accuracy of the fault simulation assembly, ensuring that the actual response is consistent with the nominal parameters and reducing erroneous operation.

[0033] Specific combination Figure 1 、 2 As shown, the three-axis positioning assembly consists of a belt drive bracket, a lifting bracket arranged on the belt drive bracket, and a clamping assembly installed on the lifting bracket, wherein the clamping assembly is used for assembling the circuit breaker 101 and adaptively fixing its position, the belt drive bracket can drive the clamping assembly to move in the X and Y directions, and the lifting bracket is used to drive the clamping assembly to move in the Z direction. Combined with the fault conditions simulated by the fault simulation assembly, the three-axis positioning assembly can cover the working state of the circuit breaker 101 as much as possible, for example, testing at different positions and parameter settings to ensure that the circuit breaker can operate correctly under basic preset conditions, while improving environmental adaptability, that is, verifying the performance under conditions of different installation locations and heights to avoid functional abnormalities due to environmental changes.

[0034] Furthermore, the belt drive bracket includes a vertical plate 211 respectively fixed at both ends of the base frame 111, a slide groove 212 is opened on the vertical plate 211, a slider 213 is provided in the slide groove 212, two first wheel bodies 214 rotatably mounted on the slider 213; and a driving wheel assembly and a second wheel body 215 respectively arranged at both ends of each vertical plate 211, wherein the driving wheel assembly includes a mounting frame 217 fixed on the vertical plate 211, a driving motor 218 fixed at the top of the mounting frame 217, and a third wheel body 219 fixed to the output end of the driving motor 218; a horizontal plate 220 fixed between the two sliders 213, and a slide seat 221 is slidably mounted on the horizontal plate 220; and also includes a transmission belt 216 that is sleeved between the first wheel body 214, the second wheel body 215 and the third wheel body 219, passes through the slide seat 221 and is fixed to the slide seat 221.

[0035] Combine Figure 1 、 2 As can be seen from Figures 3 and 4, the transmission belt 216 is sleeved between the first wheel body 214, the second wheel body 215, and the third wheel body 219, passes through the slide 221, and is fixed to the slide 221. The cross plate 220 is fixed to the opposite side of the two sliders 213. This design can operate the rotation direction of the third wheel body 219 where the two driving wheel assemblies are located to achieve the movement of the position of the slide 221.

[0036] Specific combination Figure 1 、3 As shown, when the two third wheels 219 are driven to move in opposite directions, the two sliders 213, the horizontal plate 220 fixed to the two sliders 213, and the slide 221 on the horizontal plate 220 can be moved forward and backward, thereby realizing the X-direction movement of the clamping assembly;

[0037] When the two third wheels 219 are driven to rotate in the same direction, the slide 221 moves left and right on the transverse plate 220 to achieve the Y-direction movement of the clamping assembly.

[0038] Furthermore, the lifting bracket includes a first machine plate 311 fixed on both sides of the slide 221, a second machine plate 312 fixed on each first machine plate 311, and two assembly plates 313 fixed at both ends of each second machine plate 312, and each assembly plate 313 is provided with a limit block 314 on the upper and lower sides respectively; it also includes a vertical rail 315 that is limited in longitudinal sliding with the limit block 314, and a U-shaped seat 316 for assembling a clamping component is provided on the top of the vertical rail 315; and two sets of meshing drive components installed on the base 111, which are used to drive the longitudinal sliding of the vertical rail 315.

[0039] As is known, here, two sets of first machine plates 311 and second machine plates 312 are provided and arranged on the front and rear sides of the base frame 111, and two limit blocks 314 provided on the assembly plates 313 provided at both ends of each second machine plate 312 can be limited and moved with the vertical rails 315, such as Figure 8 It can be seen that there are four vertical rails 315 and they are arranged in pairs front and back. When the two sets of meshing drive components set on the base frame 111 operate at the same time, the vertical rails 315 arranged in pairs front and back can be driven to move longitudinally, and the U-shaped seat 316 at the top of the vertical rail 315 and the clamping assembly on the U-shaped seat 316 can be further realized to achieve longitudinal movement, that is, Z-direction movement.

[0040] Furthermore, each set of meshing drive components includes two mounting frames 317 fixed to the base frame 111, each mounting frame 317 having a vertical slot; mounting members 321 fixed to both ends of the second machine plate 312, each second machine plate 312 having a rotatable connecting rod 320 provided therein, wherein the opposite ends of the two connecting rods 320 are fixed to the output ends of a dual-axis motor 319 provided in the middle of the second machine plate 312, and the opposite ends of the two connecting rods 320 extend into the two vertical slots and are fixed with gears 322; and racks 318 fixed to the side walls of each vertical rail 315, with the two racks 318 respectively meshing with the two gears 322.

[0041] Combine Figure 6 、 8As shown, two mounting members 321 are fixed to the second machine plate 312, and the dual-axis motor 319 is also fixed to the second machine plate 312. Here, the side wall of each mounting frame 317 on the side close to the vertical rail 315 is open, and a vertical slot is formed in the middle thereof. Therefore, when the gears 322 fixed to the opposite ends of the two connecting rods 320 are engaged with the racks 318 on the two vertical rails 315 on the same side, the dual-axis motor 319 is driven at this time to achieve synchronous rotation of the two gears 322, further driving the longitudinal movement of the two racks 318 and the two vertical rails 315.

[0042] Example 2

[0043] As another embodiment of the present invention, the clamping assembly includes a support base 323 for placing the circuit breaker 101, and guide bars 324 are respectively provided at the corners of the support base 323, and the outer ends of the guide bars 324 are provided with electric blocks 326 that are adapted to be fixed in the grooves where the U-shaped base 316 is located; a plurality of wires 325 are provided on each guide bar 324 and connected to the circuit breaker 101; and a transmission block 328 that is rotatably mounted on the U-shaped base 316 through a pin shaft 327 provided on the U-shaped base 316, wherein one end of the transmission block 328 is provided with a conductive bar adapted to be connected to the electric block 326, and the other end thereof is provided with an extension joint 329 electrically connected to the conductive bar; and also includes a clamping member provided on each transmission block 328 near the conductive bar for clamping and fixing the circuit breaker 101.

[0044] Combine Figure 8 As shown, the corners of the support base 323 are respectively provided with guide bars 324. The electric block 326 provided at the outer end of each guide bar 324 can be fixed to the corresponding U-shaped base 316. The plurality of wires 325 provided in the middle can be connected to the circuit breaker 101. When the wires 325 are connected to the circuit breaker 101, the connection between the electric block 326 and the circuit breaker 101 can be achieved.

[0045] The transmission block 328 is rotatably mounted to the U-shaped seat 316 via a pin shaft 327. A conductive bar provided at one end thereof can be connected to the electric block 326, and an extension connector 329 electrically connected to the conductive bar is provided at the other end thereof. When the extension connector 329 is connected to an external fault simulation component or detection equipment, the function of the circuit breaker 101 can be tested.

[0046] Furthermore, each U-shaped seat 316 is provided with a hinge 330 and an electric telescopic rod 331 provided on the hinge 330, and the telescopic end of the electric telescopic rod 331 is rotatably installed with the transmission block 328 via a rotating shaft, thereby realizing the displacement of the transmission block 328 around the pin shaft 327, further realizing the contact or disengagement of the conductive bar and the electric block 326, and at the same time realizing the clamping or disengagement process of the clamping member and the circuit breaker 101.

[0047] Furthermore, each clamping member includes a mounting rod 332 fixed to the end of the transmission block 328 away from the outward extension joint 329, a mounting plate 333 fixed to the mounting rod 332; a through hole opened at the end of the mounting plate 333 away from the mounting rod 332, a telescopic column 334 is provided in the through hole; and a connecting plate 335 and a heat conducting plate 336 respectively fixed to both ends of the telescopic column 334, wherein a spring 337 is provided on the outer arm sleeve of the telescopic column 334 between the connecting plate 335 and the mounting plate 333, and the heat conducting plate 336 can contact the top of the circuit breaker 101.

[0048] The clamping members provided in this application are preferably four and symmetrically distributed on the left and right. Figure 8 As shown, the mounting rod 332, mounting plate 333 and transmission block 328 where each clamping member is located are fixed, and the telescopic column 334 telescopically mounted on the mounting plate 333 can realize the abutment and disengagement process between the heat conducting plate 336 at the bottom end of the telescopic column 334 and the top of the circuit breaker 101 when the connecting plate 335 is pulled out, thereby realizing the clamping, fixing and disassembly process of the circuit breaker 101, further adapting to different circuit breakers 101 and reducing positioning errors.

[0049] Example 3

[0050] As other embodiments of the present invention, the fault simulation component includes an AC current module 413, a DC power supply module 414 and a load module, wherein the AC current module 413 and the DC power supply module 414 are arranged on one side of the base frame 111 and distributed up and down; the load module includes a frame 511 respectively fixed on the two ends of the back side of the base frame 111, and the two frames 511 are provided with porcelain tubes 512 on opposite surfaces; a resistance wire 516 is arranged on the porcelain tube 512, and an electrical connector 517 is provided at one end of the resistance wire 516; and a slip ring joint 513 is arranged on the electrical connector 517, and a limited conductive slot 514 is provided on the slip ring joint 513; and also includes a conductive rod 515 arranged on one of the outward joints 329, and the conductive rod 515 can be adapted to fit the limited conductive slot 514.

[0051] The AC current module 413 and DC power supply module 414 provided here are both existing mature technologies. Specifically, they can achieve precise current / voltage regulation through the inverter and electronic load to simulate working conditions such as overload and short circuit. When the connecting wires of the AC current module 413 and DC power supply module 414 are connected to the extension connector 329, the AC current module 413 and DC power supply module 414 can support the simulation of different power grid conditions.

[0052] The resistance wire 516 where the load module is located is provided with an external insulating layer. When the electrical connector 517 is connected to the power supply, and the limiting conductive groove 514 on the slip ring connector 513 is plugged into the conductive rod 515 to realize the connection between the load module and the circuit breaker 101, when the position of the circuit breaker 101 on the three-axis positioning assembly is operated, the position of the sliding slip ring connector 513 on the resistance wire 516 is specifically moved horizontally and adjusted, so that the resistance value between the electrical connector 517 and the slip ring connector 513 can be adjusted, thereby simulating working conditions such as overload and short circuit.

[0053] Furthermore, a refrigeration box 411 is provided on a side of the base frame 111 away from the AC current module 413 and the DC power module 414 , and a refrigeration element 412 is provided on the refrigeration box 411 .

[0054] Combine Figure 1 As shown, since a large amount of heat is generated when the circuit breaker 101 is subjected to a load test, a temperature sensor 338 is provided on each heat conducting plate 336 in contact with the circuit breaker 101. When the temperature of the circuit breaker 101 is too high, the temperature sensor 338 can remind the staff to operate the refrigeration box 411 and the refrigeration component 412 through the single chip microcomputer to ensure the stable operation of the circuit breaker 101 in a high temperature environment.

[0055] Furthermore, a controller 613 , a support frame 611 disposed on the top of the controller 613 , and a cover 612 fixed on the support frame 611 are further provided on the back side of the base frame 111 .

[0056] Here, a connecting pipe is connected to the cover 612. When the clamping assembly is placed inside the cover 612, the connecting pipe can allow high-temperature hot air or moisture to pass through, creating a temperature and humidity environment for detection by the circuit breaker 101, thereby improving the environmental adaptability of the circuit breaker 101.

[0057] The controller 613 has a built-in single chip microcomputer. When the control panel on the surface of the controller 613 is operated, the operation of each structure of the device can be adaptively adjusted. This is an existing mature technology and will not be described in detail.

[0058] In the present invention, unless otherwise specified or limited, the terms "install," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections; direct connections, or indirect connections through an intermediary. There are various ways to detachably install, such as by plugging and snap-fitting, or by bolting.

[0059] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A function detection device for a circuit breaker, characterized in that: include: Base frame (111); A three-axis positioning assembly is provided on the base frame (111), the three-axis positioning assembly comprising a belt drive bracket, a lifting bracket provided on the belt drive bracket, and a clamping assembly installed on the lifting bracket for assembling and connecting the circuit breaker (101); When the belt drive bracket is in operation, it can drive the clamping assembly to move in the X and Y directions, and when the lifting bracket is in operation, it is used to drive the clamping assembly to move in the Z direction; And a fault simulation component arranged on the base frame (111) is used to simulate the fault condition of the circuit breaker (101).

2. A circuit breaker function detection device according to claim 1, characterized in that: The belt drive bracket includes vertical plates (211) respectively fixed to both ends of the base frame (111), a slide groove (212) is provided on the vertical plates (211), a slider (213) is provided in the slide groove (212), and two first wheels (214) are rotatably mounted on the slider (213); and a driving wheel assembly and a second wheel body (215) respectively arranged at both ends of each vertical plate (211), wherein the driving wheel assembly comprises a mounting frame (217) fixed on the vertical plate (211), a driving motor (218) fixed to the top of the mounting frame (217), and a third wheel body (219) fixed to the output end of the driving motor (218); a transverse plate (220) fixed between the two sliding blocks (213), wherein a sliding seat (221) is slidably mounted on the transverse plate (220); It also includes a transmission belt (216) which is sleeved between the first wheel body (214), the second wheel body (215) and the third wheel body (219), passes through the slide seat (221) and is fixed to the slide seat (221).

3. A circuit breaker function detection device according to claim 2, characterized in that: The lifting bracket comprises first machine plates (311) respectively fixed on both sides of the slide seat (221), a second machine plate (312) fixed on each of the first machine plates (311), and two assembly plates (313) fixed on both ends of each of the second machine plates (312), and each of the assembly plates (313) is provided with a limit block (314) on the upper and lower sides respectively; It also includes a vertical rail (315) that is limited in longitudinal sliding with the limiting block (314), and a U-shaped seat (316) for assembling a clamping component is provided on the top of the vertical rail (315); And two groups of engaging driving components installed on the base frame (111) are used to drive the vertical rail (315) to slide longitudinally.

4. A circuit breaker function detection device according to claim 3, characterized in that: Each group of the engagement drive components includes two mounting frames (317) fixed on the base frame (111), and each mounting frame (317) is provided with a vertical slot; Mounting members (321) are respectively fixed to both ends of the second machine plate (312), and a rotatable connecting rod (320) is provided in each second machine plate (312), wherein the opposite ends of the two connecting rods (320) are fixed to the output ends of the dual-axis motor (319) provided in the middle of the second machine plate (312), and the opposite ends thereof extend into the interiors of the two vertical slots and are fixed with gears (322); and a rack (318) fixed to the side wall of each vertical rail (315), wherein the two racks (318) are respectively engaged with the two gears (322).

5. The function detection device for a circuit breaker according to claim 2, characterized in that: The clamping assembly comprises a support seat (323) for placing the circuit breaker (101), guide bars (324) are respectively provided at the corners of the support seat (323), and an electric block (326) adapted to be fixed in the groove where the U-shaped seat (316) is located is provided at the outer end of the guide bar (324); a plurality of conductors (325) arranged on each of the conductive bars (324) and connected to the circuit breaker (101); and a transmission block (328) rotatably mounted on the U-shaped seat (316) via a pin shaft (327) provided on the U-shaped seat (316), wherein one end of the transmission block (328) is provided with a conductive bar adapted to be connected to the electric block (326), and the other end thereof is provided with an extension connector (329) electrically connected to the conductive bar; It also includes a clamping piece arranged near the conductive bar on each transmission block (328) for clamping and fixing the circuit breaker (101).

6. A circuit breaker function detection device according to claim 3, characterized in that: Each of the U-shaped seats (316) is provided with a hinge (330) and an electric telescopic rod (331) provided on the hinge (330), and the telescopic end of the electric telescopic rod (331) is rotatably mounted on the transmission block (328) via a rotating shaft.

7. The function detection device for a circuit breaker according to claim 5, characterized in that: Each of the clamping members includes a mounting rod (332) fixed to one end of the transmission block (328) away from the outward expansion joint (329), and a mounting plate (333) fixed to the mounting rod (332); A through hole is provided at one end of the mounting plate (333) away from the mounting rod (332), wherein a telescopic column (334) is provided in the through hole; and a connecting plate (335) and a heat conducting plate (336) respectively fixed to both ends of the telescopic column (334), wherein a spring (337) is provided on the outer arm sleeve of the telescopic column (334) between the connecting plate (335) and the mounting plate (333), and the heat conducting plate (336) can contact the top of the circuit breaker (101).

8. The function detection device for a circuit breaker according to claim 5, characterized in that: The fault simulation component comprises an AC current module (413), a DC power supply module (414), and a load module, wherein the AC current module (413) and the DC power supply module (414) are arranged on one side of the base frame (111) and distributed upward and downward; The load module comprises frames (511) respectively fixed to both ends of the back side of the base frame (111), and porcelain tubes (512) are provided on opposite sides of the two frames (511); A resistance wire (516) is provided on the porcelain tube (512), and an electrical connector (517) is provided at one end of the resistance wire (516); and a slip ring joint (513) arranged on the electrical joint (517), wherein a limited conductive groove (514) is provided on the slip ring joint (513); It also includes a conductive rod (515) arranged on one of the outward-extending joints (329), and the conductive rod (515) can be adapted to fit with the position-limiting conductive slot (514).

9. The function detection device for a circuit breaker according to claim 5, characterized in that: A refrigeration box (411) is provided on a side of the base frame (111) away from the AC current module (413) and the DC power supply module (414), and a refrigeration element (412) is provided on the refrigeration box (411).

10. The function detection device for a circuit breaker according to claim 1, characterized in that: The back side of the base frame (111) is further provided with a controller (613), and a support frame (611) is provided on the top of the controller (613); and a cover shell (612) fixed on the support frame (611).

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