A charged analog load test measurement device

Abstract

The present invention discloses a charged analog load test measurement device, belonging to the technical field of power device detection, including a test platform and an adjustment base for detecting a relay. The adjustment base is rotationally connected with a hoisting plate through a rotating base, the hoisting plate is connected with a power connection socket through a hydraulic push rod, and the outer side wall of the top end of the hydraulic push rod is connected with a plurality of threaded shafts through a planetary gear assembly. Through the setting of the planetary gear assembly and the electromagnetic interference source, the present invention can drive the up-and-down movement of the electromagnetic interference source by the rotation of the threaded shaft, so as to meet the real simulation state of the electromagnetic interference encountered by the relay in different scenarios. At the same time, through the setting of the insulating porcelain plate and the pressurizing assembly, the pressure change of the insulating porcelain plate on the high-voltage guide plate can be used to test whether the relay can operate normally when connected to the low-voltage circuit after the high-voltage load test, and cooperate with the magnetic measurement assembly to detect whether the internal coil circuit of the relay is damaged during the high-voltage load test when it operates in the low-voltage circuit, making the detection more comprehensive and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of power device detection, and in particular to a live simulated load test measurement device. Background Art

[0002] The live simulated load test is a test method in the power system used to test the performance, stability and protection functions of equipment or systems under actual load conditions. It verifies the response ability of the equipment under dynamic conditions to ensure its safe and reliable operation.

[0003] When conducting a live test on a relay, it is necessary to detect the conductivity of each contact on the relay. However, a set of wiring pins of the relay is connected to the internal coil circuit, which is vulnerable to electromagnetic interference from external components in the automotive and industrial fields. At the same time, some relays need to be used in high-voltage circuits and then changed to normal pressure use. During the process of voltage and current change, it is necessary to ensure that the performance of the relay is always normal. And during the load process of the live test of power equipment, if the current and voltage carried by the power equipment are overloaded, it is extremely easy to damage the electronic components in the power equipment and also have an adverse impact on the external circuit of the live test, which further increases the overall cost of the production test of the power equipment. At the same time, when a failure occurs during the overcurrent and overvoltage test, if protective measures are not taken in time, it is easy to cause some safety accidents. Therefore, a live simulated load test measurement device is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, and a live simulated load test measurement device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A live simulated load test measurement device includes a test platform and an adjustment base for detecting a relay. The adjustment base is rotationally connected to a hoisting plate through a rotating base. The hoisting plate is connected to a power receptacle through a hydraulic push rod. The outer side wall of the top of the hydraulic push rod is connected to a plurality of threaded shafts through a planetary gear assembly. The outer side wall of the threaded shaft is connected to an interference component. The top of the adjustment base is connected to a double-sided rack through an electric push rod. One side of the double-sided rack meshes with a steering gear and a synchronous gear. The other side of the double-sided rack meshes with a friction gear. The top of the friction gear is connected to an electrostatic component. The top of the synchronous gear is connected to a magnetic measurement component for detecting the magnetic change situation of the electromagnetic coil in the relay;

[0007] The top of the test platform is connected with an insulating groove, and eight docking bridge plates are arranged on the insulating groove. Four of the docking bridge plates located in the middle are connected with high-voltage guide plates at the bottom. An insulating lever is arranged below the high-voltage guide plate. The insulating lever is connected with a hydraulic telescopic rod through a pressurizing component, and the hydraulic telescopic rod is connected with a constant-pressure contact plate.

[0008] Preferably, the lifting plate is rotatably connected with the hydraulic push rod. The top end of the adjustment seat is rotatably connected with a limit seat for fixedly installing a relay through a steering gear, and the socket on the power connection socket is adapted to the contact of the relay.

[0009] Preferably, the planetary gear assembly is composed of a main gear and a plurality of sub-gears. The main gear meshes with the plurality of sub-gears respectively. The main gear is fixedly connected with the outer side wall of the top end of the hydraulic push rod. The top end of the sub-gear is fixedly connected with a threaded shaft. The top end of the lifting plate is fixedly connected with a limit cross plate, and the limit cross plate is slidably connected with the plurality of threaded shafts respectively.

[0010] Preferably, the interference component is composed of two U-shaped symmetrically distributed lifting seats and a plurality of electromagnetic interference sources. The lifting seats are respectively threadedly connected with two adjacent threaded shafts, and the bottom ends of the lifting seats are fixedly connected with the plurality of electromagnetic interference sources.

[0011] Preferably, the static electricity component is composed of a friction wheel and a static electricity concentrating plate. The friction gear is fixedly connected with the friction wheel through a fixed shaft. The friction wheel is arranged at the bottom of the static electricity concentrating plate, and two conductive telescopic rods are fixedly connected to the side wall of the static electricity concentrating plate.

[0012] Preferably, the magnetic measurement component is composed of a detection seat and a plurality of oblique magnetic plates. The detection seat is rotatably connected with a self-adjusting cover through a rotating shaft. The outer side wall of the self-adjusting cover is fixedly connected with the plurality of oblique magnetic plates. A self-balancing block is fixedly connected to the bottom of the self-adjusting cover. A magnetic column is connected to the upper side wall of the rotating shaft. A laser sensor is arranged on one side of the magnetic column, and loop circuits are arranged on both the left and right sides of the laser sensor. The loop circuits are electrically connected with indicator lights.

[0013] Preferably, a test power supply is fixedly connected to the top end of the test platform. The test power supply is electrically connected with four docking bridge plates on one side. The four docking bridge plates on the other side are electrically connected with the adjustment seat through a transfer belt. Insulating oil is filled in the insulating groove.

[0014] Preferably, the pressurizing component is composed of a pressurizing bladder and a sealing cavity. The high-voltage guide plate is rotatably connected with the bottom end of the docking bridge plate through a pin shaft. A torsion spring is arranged on the outer side wall of the pin shaft. The insulating lever is rotatably connected with the docking bridge plate through a horizontal shaft. The end of the insulating lever is fixedly connected with a pressing plate arranged at the bottom of the pressurizing bladder. The pressurizing bladder communicates with the sealing cavity through a right-angle pipe.

[0015] Preferably, control guide grooves are provided on both sides of the insulating groove, the inner side walls of the control guide grooves are slidably connected to guide seats, and the side walls of the guide seats are fixedly connected to insulating ceramic plates via suspension rods.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the setting of the planetary gear assembly and the electromagnetic interference source, this scheme can use the threaded shaft to drive the lifting seat to adjust the height of the electromagnetic interference source, simulate the electromagnetic environment at different distances, cover a variety of real application scenarios, and test the stability of the relay under changing electromagnetic interference through synchronous lifting control to ensure its reliability in complex environments.

[0018] 2. This solution can monitor the magnetic field strength inside the relay by using the oblique magnetic plate and the magnetic column in conjunction with the magnetic measuring component and the electrostatic concentration plate. It can also provide intuitive magnetic field status feedback by cutting the magnetic flux lines with a circular circuit. When the magnetic field strength is abnormal, the indicator light alarm is automatically triggered to quickly identify the defects of the relay coil circuit and ensure product quality before leaving the factory.

[0019] 3. This solution uses insulating porcelain plates and booster components to separate the high-voltage conductor into insulating oil during high-voltage testing to avoid arc risks. It automatically switches to a low-voltage circuit after high-voltage limit testing, detects the operating status of the relay after extreme load, and verifies its durability and recovery ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a live simulated load test measurement device proposed by the present invention;

[0021] Figure 2 An assembly diagram of a live simulated load test measurement device proposed by the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the friction gear in a live simulated load test measurement device proposed by the present invention;

[0024] Figure 5 This is a schematic structural diagram of a planetary gear assembly in a live simulated load test measurement device proposed by the present invention;

[0025] Figure 6 This is a structural schematic diagram of a magnetic measuring component in a live simulated load test measurement device proposed by the present invention;

[0026] Figure 7Schematic diagram of the structure of the docking bridge plate position in a charged analog load test measurement device proposed by the present invention;

[0027] Figure 8 Schematic diagram of the structure of the high-voltage guide plate in a charged analog load test measurement device proposed by the present invention;

[0028] Figure 9 Schematic diagram of the structure of the pressurizing assembly in a charged analog load test measurement device proposed by the present invention.

[0029] In the figure: 1, test platform; 2, adjustment seat; 3, relay; 4, rotating seat; 5, hydraulic push rod; 6, power connection socket; 7, main gear; 8, sub-gear; 9, threaded shaft; 10, lifting seat; 11, electromagnetic interference source; 12, electric push rod; 13, double-sided rack; 14, steering gear; 15, friction gear; 16, friction wheel; 17, static electricity concentration plate; 18, conductive telescopic rod; 19, synchronous gear; 20, detection seat; 21, self-adjusting cover; 22, oblique magnetic plate; 23, laser sensor; 24, magnetic column; 25, loop circuit; 26, indicator light; 27, transfer belt; 28, insulating groove; 29, test power supply; 30, docking bridge plate; 31, high-voltage guide plate; 32, insulating lever; 33, pressurizing bladder; 34, sealed cavity; 35, hydraulic telescopic rod; 36, constant pressure contact plate; 37, control guide groove; 38, guide seat; 39, insulating porcelain plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Example, refer to Figures 1 to 9 , a charged analog load test measurement device, including a test platform 1 and an adjustment base 2 for detecting a relay 3. The adjustment base 2 is rotationally connected with a hoisting plate through a rotating base 4. The hoisting plate is connected with a power connection socket 6 through a hydraulic push rod 5. The outer side wall of the top end of the hydraulic push rod 5 is connected with a plurality of threaded shafts 9 through a planetary gear assembly, and the outer side wall of the threaded shaft 9 is connected with an interference assembly;

[0034] Furthermore, the hoisting plate is rotationally connected with the hydraulic push rod 5. The top end of the adjustment base 2 is rotationally connected with a limit seat for fixedly installing the relay 3 through a steering gear 14. The socket on the power connection socket 6 is adapted to the contact of the relay 3. The planetary gear assembly is composed of a main gear 7 and a plurality of sub-gears 8. The main gear 7 meshes with the plurality of sub-gears 8 respectively. The main gear 7 is fixedly connected with the outer side wall of the top end of the hydraulic push rod 5. The top end of the sub-gear 8 is fixedly connected with the threaded shaft 9. The top end of the hoisting plate is fixedly connected with a limit cross plate, and the limit cross plate is slidably connected with the plurality of threaded shafts 9 respectively. The interference assembly is composed of two U-shaped symmetrically distributed lifting seats 10 and a plurality of electromagnetic interference sources 11. The lifting seats 10 are respectively threadedly connected with two adjacent threaded shafts 9, and the bottom end of the lifting seat 10 is fixedly connected with the plurality of electromagnetic interference sources 11;

[0035] It should be noted that: the relay 3 to be detected is fixedly limited in the limit seat above the steering gear 14. Subsequently, the rotating base 4 is used to control the deflection of the hydraulic push rod 5, and the hydraulic push rod 5 is used to turn the power connection socket 6 to directly above the relay 3. Subsequently, the hydraulic push rod 5 is used to push the power connection socket 6 downward to conduct electricity and plug it into the relay 3. When the direction of the relay 3 needs to be adjusted, the electric push rod 12 is started to push the double-sided rack 13, then the double-sided rack 13 will drive the steering gear 14 and the synchronous gear 19 to rotate in the same direction respectively, and drive the friction gear 15 to rotate. The rotation of the steering gear 14 will drive the relay 3 to deflect, so that the hydraulic push rod 5 rotates on the hoisting plate, further driving the main gear 7 to rotate. The rotation of the main gear 7 will synchronously drive the plurality of sub-gears 8 on the outside to rotate, and then drive the threaded shaft 9 to rotate. Then the rotation of the threaded shaft 9 will drive the lifting seat 10 to move in the vertical direction, so that the plurality of electromagnetic interference sources 11 move synchronously with the lifting seat 10 to simulate the electromagnetic interference on the relay 3 within different distance ranges;

[0036] The above-mentioned benefits are as follows: The rotation of the threaded shaft 9 can drive the up and down movement of the electromagnetic interference source 11, meeting the true simulation state of the electromagnetic interference encountered by the relay 3 in different scenarios, and facilitating the testing of the use of the relay 3 under changing electromagnetic interference states;

[0037] At the top of the adjustment seat 2, a double-sided rack 13 is connected through an electric push rod 12. On one side of the double-sided rack 13, a steering gear 14 and a synchronous gear 19 are engaged. On the other side of the double-sided rack 13, a friction gear 15 is engaged. At the top of the friction gear 15, an electrostatic assembly is connected. At the top of the synchronous gear 19, a magnetic detection assembly for detecting the magnetic change of the electromagnetic coil in the relay 3 is connected;

[0038] Furthermore, the electrostatic assembly consists of a friction wheel 16 and an electrostatic concentration plate 17. The friction gear 15 is fixedly connected to the friction wheel 16 through a fixed shaft. The friction wheel 16 is arranged at the bottom of the electrostatic concentration plate 17. Two conductive telescopic rods 18 are fixedly connected to the side wall of the electrostatic concentration plate 17. The magnetic detection assembly consists of a detection seat 20 and a plurality of inclined magnetic plates 22. The detection seat 20 is rotatably connected to an adjustable cover 21 through a rotating shaft. The outer side wall of the adjustable cover 21 is fixedly connected to the plurality of inclined magnetic plates 22. A self-balancing block is fixedly connected to the bottom of the adjustable cover 21. A magnetic column 24 is connected to the upper side wall of the rotating shaft. A laser sensor 23 is arranged on one side of the magnetic column 24. Loop circuits 25 are arranged on both the left and right sides of the laser sensor 23. The loop circuits 25 are electrically connected to an indicator light 26;

[0039] It should be noted that after the relay 3 is powered on and starts, an arc-shaped upward magnetic force will be generated on one side of its internal coil circuit. The generated changing magnetic force will repel or attract the magnetic poles of the obliquely arranged inclined magnetic plate 22 on the self-adjusting cover 21, so as to drive the rotation shaft to deflect by using the self-adjusting cover 21. The deflection of the rotation shaft will drive the magnetic column 24 to deflect together. The self-adjusting cover 21 can shield the influence of the external magnetic field on the internal magnetic field. When the magnetic column 24 deflects to a certain angle, the small-range magnetic field carried by the magnetic column 24 itself will mutually cut with the loop circuit 25. The cutting of the magnetic induction lines will cause the loop circuit 25 to generate current to supply power to the indicator light 26. When the magnetic field intensity at the detection position exceeds the magnetic field intensity standard generated by the internal coil circuit of the relay 3, it will cause the magnetic column 24 to deflect by a large angle under the action of the self-adjusting cover 21, so that the loop circuit 25 cuts the magnetic induction lines to start the indicator light 26. If the magnetic field intensity generated by the internal coil circuit of the relay 3 is less than the normal standard, the indicator light 26 cannot be started. After the detection is completed, the self-adjusting cover 21 will reset to the initial position under the gravity of the bottom balance weight. The laser sensor 23 is used to judge whether the magnetic column 24 has reset to the initial position. The synchronous gear 19 and the steering gear 14 rotate synchronously in the same direction. After the synchronous rotation, the magnetic field direction of the side of the inclined magnetic plate 22 and the internal coil of the relay 3 will be kept consistent, which can ensure the monitoring of the magnetic field condition of the internal coil circuit of the relay 3 at all times. The friction gear 15 rotates to drive the friction between the friction wheel 16 and the static electricity concentrating plate 17, so that the static electricity concentrating plate 17 is charged with static electricity during the friction process. Subsequently, the conductive telescopic rod 18 is controlled to contact its contact point in the non-powered state of the relay 3, simulating the contact when the contact point of the relay 3 discharges static electricity with an object or a human body, and testing the use condition of the relay 3 in this state;

[0040] The benefits based on the above are as follows: The deflection of the magnetic column 24 can be utilized to make the loop circuit 25 perform the movement of cutting the magnetic induction lines, measure the magnetic field intensity state of the internal coil circuit of the relay 3 under a stable voltage, and ensure the reliability and stability of the internal coil circuit of the relay 3 during subsequent use;

[0041] The top of the test platform 1 is connected with an insulating groove 28. There are eight docking bridge plates 30 arranged on the insulating groove 28. The bottom ends of the four docking bridge plates 30 located in the middle are all connected with high-voltage guide plates 31. An insulating lever 32 is arranged below the high-voltage guide plate 31. The insulating lever 32 is connected with a hydraulic telescopic rod 35 through a pressurizing assembly, and the hydraulic telescopic rod 35 is connected with a constant-pressure contact plate 36;

[0042] Furthermore, a test power supply 29 is fixedly connected to the top end of the test platform 1. The test power supply 29 is electrically connected to four docking bridge plates 30 on one side. The four docking bridge plates 30 on the other side are electrically connected to the adjustment base 2 through a transfer belt 27. Insulating oil is contained in the insulating groove 28. The pressurization assembly consists of a pressurization bladder 33 and a sealing cavity 34. The high-voltage guide plate 31 is rotatably connected to the bottom end of the docking bridge plate 30 through a pin shaft. A torsion spring is arranged on the outer side wall of the pin shaft. The insulating lever 32 is rotatably connected to the docking bridge plate 30 through a cross shaft. A pressing plate arranged at the bottom of the pressurization bladder 33 is fixedly connected to the end of the insulating lever 32. The pressurization bladder 33 communicates with the sealing cavity 34 through a right-angle pipe. Control guide grooves 37 are arranged on both sides of the insulating groove 28. A guide seat 38 is slidably connected to the inner side wall of the control guide groove 37. An insulating porcelain plate 39 is fixedly connected to the side wall of the guide seat 38 through a suspension rod;

[0043] It should be noted that: when simulating the high-voltage use state of the analog relay 3, the test power supply 29 will output high voltage through the two middle high-voltage guide plates 31. At this time, the two opposite high-voltage guide plates 31 are pressed against each other under the action of the torsion spring. If in the extreme state of the high-voltage load test of the relay 3, the control guide seat 38 slides down in the control guide groove 37, thereby driving the insulating porcelain plate 39 to move downward. The insulating porcelain plate 39 presses between the two pressed high-voltage guide plates 31 and presses the two high-voltage guide plates 31 separately into the insulating oil in the insulating groove 28 to avoid the generation of electric arcs when the high-voltage guide plates 31 are separated under high-voltage conditions. The downward pressure of the high-voltage guide plate 31 will press the insulating lever 32, causing the other end of the insulating lever 32 to lift the pressing plate, squeezing the pressurization bladder 33, so that the inside of the sealing cavity 34 is pressurized synchronously, and then the hydraulic telescopic rod 35 extends to butt and press the two opposite constant-pressure contact plates 36 together. The test power supply 29 is connected to the docking bridge plates 30 at both edges for low voltage. After the high-voltage load test of the relay 3 is completed, it can be quickly connected to the low-voltage circuit;

[0044] Based on the above advantages: this can utilize the pressure change of the insulating porcelain plate 39 on the high-voltage guide plate 31 to test whether the relay 3 can operate normally when connected to the low-voltage circuit after the high-voltage load test. Cooperating with the magnetic measurement component to detect whether the internal coil circuit of the relay 3 is damaged during operation in the low-voltage circuit under the high-voltage load test, making the detection more comprehensive and efficient;

[0045] Note: Cutting the magnetic induction line means that an object moves in a magnetic field, and the movement has a certain speed in a direction perpendicular to (or not parallel to) the magnetic induction line.

[0046] When the present invention is in use, the relay 3 to be detected is fixedly limited in the limiting seat above the steering gear 14. Subsequently, the hydraulic push rod 5 is controlled to deflect by the rotating seat 4, and the power connection socket 6 is rotated to the directly above the relay 3 by the hydraulic push rod 5. Then, the hydraulic push rod 5 is used to push the power connection socket 6 downward to make a power connection insertion with the relay 3. When the direction of the relay 3 needs to be adjusted, the electric push rod 12 is started to push the double-sided rack 13, and the double-sided rack 13 will drive the steering gear 14 and the synchronous gear 19 to rotate in the same direction respectively, and drive the friction gear 15 to rotate. The rotation of the steering gear 14 will drive the relay 3 to deflect, so that the hydraulic push rod 5 rotates on the lifting plate, further driving the main gear 7 to rotate. The rotation of the main gear 7 will synchronously drive a plurality of outer side sub-gears 8 to rotate, and then drive the threaded shaft 9 to rotate. Then, the rotation of the threaded shaft 9 will drive the lifting seat 10 to move in the vertical direction, so that the plurality of electromagnetic interference sources 11 move synchronously with the lifting seat 10, simulating the electromagnetic interference on the relay 3 within the area range of different distances. In this way, the rotation of the threaded shaft 9 can drive the up and down movement of the electromagnetic interference sources 11, meeting the real simulation state of the relay 3 encountering electromagnetic interference in different scenarios, and facilitating the testing of the use situation of the relay 3 under the changing electromagnetic interference state;

[0047] After the relay 3 is powered on and starts, the coil circuit inside it will generate an arc-shaped upward magnetic force on one side. The generated changing magnetic force will repel or attract the magnetic poles of the obliquely arranged oblique magnetic plate 22 on the self-adjusting cover 21, thereby driving the rotation shaft to deflect by using the self-adjusting cover 21. The deflection of the rotation shaft will drive the magnetic column 24 to deflect together. The self-adjusting cover 21 can shield the influence of the external magnetic field on the internal magnetic field. When the magnetic column 24 deflects to a certain angle, the small-range magnetic field carried by the magnetic column 24 itself will cut the loop circuit 25 mutually. The cutting of the magnetic induction lines will cause the loop circuit 25 to generate an electric current to supply power to the indicator light 26. When the magnetic field intensity at the detection position exceeds the magnetic field intensity standard generated by the coil circuit inside the relay 3, it will cause the magnetic column 24 to deflect by a large angle under the action of the self-adjusting cover 21, enabling the loop circuit 25 to cut the magnetic induction lines to start the indicator light 26. If the magnetic field intensity generated by the coil circuit inside the relay 3 is less than the normal standard, the indicator light 26 cannot be started. After the detection is completed, the self-adjusting cover 21 will reset to the initial position under the gravity of the bottom balance weight. The laser sensor 23 is used to determine whether the magnetic column 24 has reset to the initial position. The synchronous gear 19 and the steering gear 14 rotate synchronously in the same direction. After synchronous rotation, the magnetic field direction on the side of the oblique magnetic plate 22 and the coil inside the relay 3 will be kept consistent, which can ensure the monitoring of the magnetic field condition of the coil circuit inside the relay 3 at all times. The friction gear 15 rotates to drive the friction between the friction wheel 16 and the static electricity concentrating plate 17, enabling the static electricity concentrating plate 17 to carry static electricity during the friction process. Subsequently, the conductive telescopic rod 18 is controlled to contact its contact point when the relay 3 is in the non-powered state, simulating the contact when the contact point of the relay 3 discharges static electricity with an object or a human body, and testing the usage situation of the relay 3 in this state. In this way, the deflection of the magnetic column 24 can be utilized to make the loop circuit 25 perform the movement of cutting the magnetic induction lines, measuring the magnetic field intensity state of the coil circuit inside the relay 3 under a stable voltage, and ensuring the reliability and stability of the coil circuit inside the relay 3 during subsequent use;

[0048] When the simulation relay 3 is in the high-voltage usage state, the test power supply 29 will output high voltage through the two middle high-voltage guide plates 31. At this time, the two opposite high-voltage guide plates 31 are pressed against each other under the action of the torsion spring. If in the extreme state of the high-voltage load test of the relay 3, the control guide seat 38 slides down in the control guide groove 37, thereby driving the insulating porcelain plate 39 to move downward. The insulating porcelain plate 39 presses between the two pressed high-voltage guide plates 31 and presses the two high-voltage guide plates 31 separately into the insulating oil in the insulating groove 28, avoiding the generation of electric arcs when the high-voltage guide plates 31 are separated under high-voltage conditions. The downward pressure of the high-voltage guide plate 31 will press the insulating lever 32, causing the other end of the insulating lever 32 to lift the pressing plate, squeezing the booster bladder 33, so that the inside of the sealed cavity 34 is pressurized synchronously, and then the hydraulic telescopic rod 35 extends to press the two opposite constant-pressure contact plates 36 against each other and tightly. The test power supply 29 is connected to the docking bridge plates 30 at both sides' edges with low voltage. After completing the high-voltage load test of the relay 3, it can be quickly connected to the low-voltage circuit. In this way, the pressure change of the insulating porcelain plate 39 on the high-voltage guide plate 31 can be used to test whether the relay 3 can operate normally after being connected to the low-voltage circuit after the high-voltage load test, and cooperate with the magnetic measurement component to detect whether the internal coil circuit of the relay 3 is damaged during the high-voltage load test when it operates in the low-voltage circuit, making the detection more comprehensive and efficient.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A charged analog load test measurement device, comprising a test platform (1) and an adjustment base (2) for detecting a relay (3), characterized in that, The adjustment base (2) is rotationally connected with a hoisting plate through a swivel base (4). The hoisting plate is connected with a power connection socket (6) through a hydraulic push rod (5). The outer side wall of the top end of the hydraulic push rod (5) is connected with a plurality of threaded shafts (9) through a planetary gear assembly. The outer side wall of the threaded shaft (9) is connected with an interference assembly. A magnetic detection assembly for detecting the magnetic change condition of the electromagnetic coil in the relay (3) is arranged on the adjustment base (2). The magnetic detection assembly is composed of a detection base (20) and a plurality of inclined magnetic plates (22). The detection base (20) is rotationally connected with a self-adjusting cover (21) through a rotating shaft. The outer side wall of the self-adjusting cover (21) is fixedly connected with the plurality of inclined magnetic plates (22). An insulating groove (28) is connected to the top end of the test platform (1). Eight docking bridge plates (30) are arranged on the insulating groove (28). High-voltage guide plates (31) are connected to the bottom ends of the four docking bridge plates (30) located in the middle. An insulating lever (32) is arranged below the high-voltage guide plate (31). The insulating lever (32) is connected with a hydraulic telescopic rod (35) through a pressurizing assembly. The hydraulic telescopic rod (35) is connected with a constant-pressure contact plate (36).

2. The charged analog load test measurement device according to claim 1, characterized in that The hoisting plate is rotationally connected with the hydraulic push rod (5). The top end of the adjustment base (2) is rotationally connected with a limit seat for fixedly installing the relay (3) through a steering gear (14). The socket on the power connection socket (6) is adapted to the contact of the relay (3).

3. The measuring device for live analog load test according to claim 1, characterized in that The planetary gear assembly is composed of a main gear (7) and a plurality of sub-gears (8). The main gear (7) meshes with the plurality of sub-gears (8) respectively. The main gear (7) is fixedly connected with the outer side wall of the top end of the hydraulic push rod (5). The top end of the sub-gear (8) is fixedly connected with the threaded shaft (9). A limit cross plate is fixedly connected to the top end of the hoisting plate. The limit cross plate is slidably connected with the plurality of threaded shafts (9) respectively.

4. The charged analog load test measurement device according to claim 1, characterized in that, The interference assembly is composed of two lifting seats (10) symmetrically distributed in a U shape and a plurality of electromagnetic interference sources (11). The lifting seats (10) are respectively threadedly connected with two adjacent threaded shafts (9). The bottom ends of the lifting seats (10) are fixedly connected with the plurality of electromagnetic interference sources (11).

5. The measurement device for live analog load test according to claim 1, wherein The top end of the adjustment base (2) is connected with a double-sided rack (13) through an electric push rod (12). A steering gear (14) and a synchronous gear (19) are meshed with one side of the double-sided rack (13). A friction gear (15) is meshed with the other side of the double-sided rack (13). The top end of the friction gear (15) is connected with an electrostatic assembly. The electrostatic assembly is composed of a friction wheel (16) and an electrostatic concentration plate (17). The friction gear (15) is fixedly connected with the friction wheel (16) through a fixed shaft. The friction wheel (16) is arranged at the bottom of the electrostatic concentration plate (17). Two conductive telescopic rods (18) are fixedly connected to the side wall of the electrostatic concentration plate (17).

6. The charged analog load test measurement device according to claim 5, wherein, The top of the synchronous gear (19) is fixedly connected to the detection seat (20) through a fixing plate. A self-balancing block is fixedly connected to the bottom of the self-adjusting cover (21). A magnetic column (24) is connected to the upper side wall of the rotating shaft. A laser sensor (23) is arranged on one side of the magnetic column (24). Return-shaped circuits (25) are arranged on both the left and right sides of the laser sensor (23). The return-shaped circuits (25) are electrically connected to an indicator light (26).

7. The measurement device for live analog load test according to claim 1, characterized in that, A test power supply (29) is fixedly connected to the top of the test platform (1). The test power supply (29) is electrically connected to four docking bridge plates (30) on one side. The four docking bridge plates (30) on the other side are electrically connected to an adjustment seat (2) through a transfer belt (27). Insulating oil is contained in the insulating groove (28).

8. The measuring device for live analog load test according to claim 1, characterized in that, The pressurization assembly is composed of a pressurization bladder (33) and a sealing cavity (34). The high-pressure guide plate (31) is rotatably connected to the bottom end of the docking bridge plate (30) through a pin shaft. A torsion spring is arranged on the outer side wall of the pin shaft. The insulating toggle lever (32) is rotatably connected to the docking bridge plate (30) through a cross shaft. A pressing plate arranged at the bottom of the pressurization bladder (33) is fixedly connected to the end of the insulating toggle lever (32). The pressurization bladder (33) communicates with the sealing cavity (34) through a right-angle pipe.

9. The measurement device for live analog load test according to claim 1, wherein Control guide grooves (37) are arranged on both sides of the insulating groove (28). A guide seat (38) is slidably connected to the inner side wall of the control guide groove (37). An insulating porcelain plate (39) is fixedly connected to the side wall of the guide seat (38) through a suspension rod.

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