A double-headed electromagnet comprehensive performance test bed

Abstract

The application discloses a double-head electromagnet comprehensive performance test platform, and relates to the technical field of electromagnet test platforms, which comprises a workbench, a test box fixedly connected to the workbench, a sealing door installed on the side of the test box, a supporting mechanism, a stator mechanism and a cleaning mechanism.The supporting mechanism is connected to the inner top of the test box, and a double-head electromagnet is rotatably placed on the working end of the supporting mechanism.The stator mechanism is installed on the outside of the test box.The double-head electromagnet is a double-keeping double-head electromagnet, and the permanent magnet inside the double-head electromagnet is a multi-stage magnetized magnet.The double-keeping double-head electromagnet with the multi-stage magnetized magnet inside can improve the keeping force, and can rotate on the supporting mechanism with the stator mechanism, so as to realize complete cleaning of the double-head electromagnet with the cleaning mechanism, avoid the influence of dirt on the test effect, and ensure the completeness of the salt spray test and improve the test quality of the salt spray test.

Description

Technical Field

[0001] This invention relates to the field of electromagnet testing platform technology, and in particular to a comprehensive performance testing platform for dual-head electromagnets. Background Technology

[0002] An electromagnet comprehensive performance test bench is a test bench for testing the comprehensive performance of electromagnets, including their external hardware performance, internal electromagnetic performance, and electrical performance. A double-headed electromagnet is a type of electromagnet. When operating, it controls the polarity of the magnetic field through internal double coils based on the direction of the current, achieving bidirectional movement of the movable iron core. Among double-headed electromagnets, there is a type that can maintain bidirectional movement. Compared to ordinary double-headed electromagnets, it has a permanent magnet inside. After power is cut off, the magnetic attraction of the permanent magnet to the iron core achieves hold-up, thus meeting the requirements for bidirectional movement and separate holding in each direction after power failure. This allows the double-headed electromagnet to switch between two steady states without requiring a continuous energy supply to maintain its position, offering advantages such as low cost, low power consumption, high reliability, and fast response speed.

[0003] In existing technologies, when testing electromagnets, the electromagnets are clamped and fixed by a push rod clamping mechanism, the electrical performance of the electromagnets under different working conditions is tested by a control system, the electromagnetic performance of the electromagnets is tested by a mechanical sensor, and the temperature rise of the electromagnets is monitored in real time by a temperature sensor. However, the above methods lack a test bench for testing double-holding double-headed electromagnets with multi-stage magnetized permanent magnets inside. The fact that the electromagnets are fixed and cannot rotate can easily affect their cleaning effect during the cleaning process and the salt spray test effect during the salt spray test. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art of lacking a test bench for testing double-holding double-headed electromagnets with multi-stage magnetized internal permanent magnets, and to propose a comprehensive performance test bench for double-headed electromagnets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a comprehensive performance test bench for dual-headed electromagnets, comprising a workbench, a test chamber fixedly connected to the workbench, a sealed door installed on the side of the test chamber, and further comprising: The support mechanism is connected to the top of the test chamber, and a double-headed electromagnet is rotatably placed on the working end. The stator mechanism is installed on the outside of the test chamber. The double-headed electromagnet is a double-holding electromagnet, and its internal permanent magnet is a multi-stage magnet. When the stator mechanism is working, it drives the double-headed electromagnet to rotate. The test chamber includes a cleaning mechanism, a salt spray testing mechanism, and an electromagnetic performance testing mechanism. A pendulum valve is installed in the middle of the test chamber. The cleaning mechanism and the salt spray testing mechanism are both connected to the top of the test chamber, and their working ends are directly opposite the double-headed electromagnets. The electromagnetic performance testing mechanism is connected to the bottom of the test chamber, and its working end is directly opposite the double-headed electromagnets that are placed at the bottom of the test chamber by the support mechanism.

[0006] In the aforementioned dual-headed electromagnet comprehensive performance test bench, the support mechanism includes two adjusting electric cylinders (5). The adjusting electric cylinders (5) are movably connected to the top of the test chamber, and their output ends are fixedly connected to a sleeve plate. A motor (2) is installed on the side of the sleeve plate, and the output end of the motor (2) extends through into the sleeve plate and is coaxially fixedly connected to a gear. A support ring is slidably sleeved inside the sleeve plate. The support ring is in the shape of a three-quarter ring, and a rack is coaxially fixedly connected to its outer side. The rack and gear mesh with each other. Multiple rollers are rotatably connected inside the sleeve plate. The multiple rollers are symmetrically distributed and correspondingly abut against both sides of the support ring. Limit blocks and guide heads are fixedly connected to both ends of the support ring. The sleeve plate is located on the rotation path of the limit blocks. The two working ends of the dual-headed electromagnet are placed one-to-one in the two support rings whose notches are not at the bottom after rotation.

[0007] In the aforementioned dual-head electromagnet comprehensive performance test bench, a motor is installed on the outside of the test chamber. The output end of the motor is sealed and extends into the test chamber, and is coaxially fixedly connected to a bidirectional lead screw mechanism. Two linear slider mechanisms are threadedly connected to the bidirectional lead screw mechanism. A guide rod is fixedly connected to the top of the test chamber. The linear slider mechanism is slidably connected to the guide rod. Two adjusting electric cylinders are installed one-to-one at the bottom of the two linear slider mechanisms.

[0008] The aforementioned dual-headed electromagnet comprehensive performance test bench also includes a current and voltage monitoring module. The current and voltage monitoring module is installed on the test chamber. An electric slip ring is installed on a support ring. The rotating end of the electric slip ring is electrically connected to the dual-headed electromagnet, and the fixed end is electrically connected to the current and voltage monitoring module by a conductive wire.

[0009] In the aforementioned dual-head electromagnet comprehensive performance test bench, the stator mechanism includes an annular shell, which is fixedly connected to the outside of the test chamber. Multiple sets of coils are installed inside the annular shell, and all sets of coils are electrically connected to an external power source and cooperate with some of the magnetic poles of the permanent magnet.

[0010] In the aforementioned dual-head electromagnet comprehensive performance test bench, when the valve core of the pendulum valve is closed, it seals and divides the interior of the test chamber into an upper chamber and a lower chamber. The upper chamber is located above the lower chamber. The cleaning mechanism includes a water inlet pipe, one end of which is connected to an external water source, and the other end is connected to the top of the upper chamber. An ultrasonic cleaning head is installed on the side of the upper chamber, and the working end of the ultrasonic cleaning head is fixedly connected to the side wall of the upper chamber. A water outlet pipe is connected to the bottom of the upper chamber. Water valves are installed on both the water inlet pipe and the water outlet pipe.

[0011] In the aforementioned dual-headed electromagnet comprehensive performance test bench, the cleaning mechanism also includes a drying component. The drying component includes an air extraction pipe, one end of which is connected to an external vacuum pump, and the other end is connected to the interior of the upper chamber. A microwave heating mechanism is installed on the side of the upper chamber, with the working end of the microwave heating mechanism facing the interior of the upper chamber. An infrared temperature sensor is installed on the upper chamber, with the working end of the infrared temperature sensor facing the dual-headed electromagnet. The infrared temperature sensor is electrically connected to a controller, which is installed on the workbench and electrically connected to an alarm. The controller receives the signal from the infrared temperature sensor and controls the working status of the alarm.

[0012] In the aforementioned dual-headed electromagnet comprehensive performance test bench, the salt spray test mechanism includes an atomizing nozzle installed in the upper chamber. The input end of the atomizing nozzle is sealed and penetrates the upper chamber, and is connected to a liquid inlet pipe. The liquid inlet pipe is connected to an external salt water source, and the output end of the atomizing nozzle is directly facing the dual-headed electromagnet.

[0013] In the aforementioned dual-headed electromagnet comprehensive performance test bench, the electromagnetic performance testing mechanism includes a clamping assembly and a testing assembly connected to the lower chamber. The output end of the clamping assembly abuts against the outside of the dual-headed electromagnet. The testing assembly includes a testing plate slidably connected to the worktable. A through slot is provided on the stator mechanism for the testing plate to move. Electric cylinder 1 is installed at both ends of the testing plate. Clamping plate 3 is fixedly connected to the output end of electric cylinder 1. When the output end of electric cylinder 1 extends, both clamping plates 3 extend through into the lower chamber and abut against the two working ends of the dual-headed electromagnet. Two thrust testers and two electric cylinder 2 are installed on the worktable. The working ends of the two thrust testers are fixedly connected to the two ends of the testing plate. The two electric cylinder 2 are symmetrically distributed, and their output ends abut against the bottom of the testing plate after extension. A sliding rod is fixedly connected to the side of the testing plate. The middle of the sliding rod passes through the stator mechanism. A sleeve is fixedly connected inside the stator mechanism. A displacement sensor is installed inside the sleeve. The working end of the displacement sensor faces the sliding rod.

[0014] In the aforementioned dual-headed electromagnet comprehensive performance test bench, the clamping assembly includes two electric cylinders three and two electric cylinders four installed at the bottom of the lower chamber. Each of the output ends of the two electric cylinders three is fixedly connected to a clamping plate one. When the output ends of the electric cylinders three are extended, the two clamping plates one abut against the two sides of the dual-headed electromagnet. Each of the output ends of the two electric cylinders four is fixedly connected to a clamping plate two. The height of the clamping plate two is less than the height of the clamping plate one. When the output ends of the electric cylinders four are extended, the two clamping plates two abut against the two ends of the dual-headed electromagnet one to the other. A sliding groove is provided at the bottom of the lower chamber for the two clamping plates one and two clamping plates two to move.

[0015] Compared with existing technologies, the advantages of this invention are: 1. This invention, by setting up a support mechanism, supports the double-headed electromagnet without hindering its rotation, and can complete the vertical transport of the double-headed electromagnet; by setting the internal permanent magnet to a double-holding double-headed electromagnet with multi-stage magnetized magnets, its holding force is improved, and in conjunction with the stator mechanism, it can rotate on the support mechanism. Furthermore, in conjunction with the cleaning mechanism, it can achieve thorough cleaning of the double-headed electromagnet, avoiding the influence of dirt on the test results, and the rotation of the double-headed electromagnet ensures the thoroughness of the salt spray test, avoiding the problem in conventional salt spray tests where the bottom of the double-headed electromagnet cannot be sprayed with salt spray, thus improving the test quality of the salt spray test.

[0016] 2. This invention uses an infrared temperature sensor to detect the heat accumulated on the surface of the double-headed electromagnet due to salt spray corrosion during the salt spray test. The temperature rise is used to determine whether rust has formed, avoiding the uncertainty and inefficiency of human observation and ensuring the accuracy of salt spray test data.

[0017] 3. This invention, by setting up an electromagnetic performance testing mechanism, can adaptively clamp and fix double-headed electromagnets of different sizes through a clamping component, thereby completing the automatic positioning of the double-headed electromagnets; and through a testing component, it can simultaneously detect the push-out force, holding force, stroke, and working temperature of the two working ends of the double-headed electromagnet, thereby improving efficiency and avoiding data deviations caused by multiple clamping in conventional tests, thus improving data accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the working process of a dual-head electromagnet comprehensive performance test bench proposed in this invention; Figure 2 Partial axial measurement of a dual-headed electromagnet comprehensive performance test bench proposed in this invention. Figure 1 ; Figure 3 Partial axial measurement of a dual-headed electromagnet comprehensive performance test bench proposed in this invention. Figure 2 ; Figure 4 Partial axial measurement of a dual-headed electromagnet comprehensive performance test bench proposed in this invention. Figure 3 ; Figure 5 This is an isometric view of the support mechanism in a dual-headed electromagnet comprehensive performance test bench proposed in this invention; Figure 6 This is a partial sectional isometric view of the support mechanism in a dual-headed electromagnet comprehensive performance test bench proposed in this invention.

[0019] In the diagram: 1. Double-headed electromagnet; 2. Workbench; 3. Pendulum valve; 4. Stator mechanism; 5. Test chamber; 6. Current and voltage monitoring module; 7. Electromagnetic performance testing mechanism; 8. Support mechanism; 9. Infrared temperature sensor; 10. Water inlet pipe; 11. Water outlet pipe; 41. Coil; 51. Sealing door; 52. Motor 1; 53. Air extraction pipe; 54. Microwave heating mechanism; 55. Ultrasonic cleaning vibrator; 56. Atomizing nozzle; 57. Liquid inlet pipe; 58. Bidirectional lead screw mechanism; 59. Linear slide. Block mechanism, 61. Conductive wire, 71. Thrust detector, 72. Detection plate, 73. Slide rod, 74. Displacement sensor, 75. Sleeve, 76. Clamping plate one, 77. Clamping plate two, 78. Clamping plate three, 79. Electric cylinder one, 710. Electric cylinder two, 711. Electric cylinder three, 712. Electric cylinder four, 81. Electric cylinder five, 82. Electric slip ring, 83. Sleeve plate, 84. Motor two, 85. Support ring, 86. Rack, 87. Gear, 88. Roller, 89. Limiting block, 810. Guide head. Detailed Implementation

[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] Reference Figures 1-6 A comprehensive performance testing bench for dual-headed electromagnets includes a workbench 2, a test chamber 5 fixedly connected to the workbench 2, a sealing door 51 installed on the side of the test chamber 5, and further includes: Support mechanism 8 is connected to the top of the test chamber 5, and a double-headed electromagnet 1 is rotatably placed on its working end.

[0022] The support mechanism 8 includes two adjusting electric cylinders 81, which are movably connected to the top of the test chamber 5 and have a fixed sleeve 83 at their output ends. A motor 84 is installed on the side of the sleeve 83, and the output end of the motor 84 extends through into the sleeve 83 and is coaxially fixedly connected to a gear 87. A support ring 85 is slidably sleeved inside the sleeve 83. The support ring 85 is three-quarters of a circle and has a rack 86 coaxially fixedly connected to its outer side. The rack 86 meshes with the gear 87. Multiple rollers 88 are rotatably connected inside the sleeve 83. The multiple rollers 88 are symmetrically distributed and abut against both sides of the support ring 85. Limit blocks 89 and guide heads 810 are fixedly connected to both ends of the support ring 85. The sleeve 83 is located on the rotation path of the limit blocks 89. The two working ends of the double-headed electromagnet 1 are placed one-to-one in the two support rings 85 whose notches are not at the bottom after rotation.

[0023] The roller 88 provides support for the support ring 85, facilitating the rotation of the support ring 85 on the sleeve 83. The limit block 89 prevents the support ring 85 from slipping due to overtravel.

[0024] A motor 52 is installed on the outside of the test chamber 5. The output end of the motor 52 is sealed and extends into the test chamber 5, and is coaxially fixedly connected to a bidirectional lead screw mechanism 58. Two linear slider mechanisms 59 are threadedly connected to the bidirectional lead screw mechanism 58. A guide rod is fixedly connected to the top of the test chamber 5. The linear slider mechanisms 59 are slidably connected to the guide rod. Two adjusting electric cylinders 81 are installed one-to-one at the bottom of the two linear slider mechanisms 59.

[0025] Stator mechanism 4 is installed on the outside of test chamber 5. Double-headed electromagnet 1 is a double-held double-headed electromagnet. Its internal permanent magnet is a multi-stage magnet. When stator mechanism 4 is working, it drives double-headed electromagnet 1 to rotate.

[0026] The dual-holding double-headed electromagnet 1, compared to a general double-headed electromagnet 1, has a permanent magnet inside. After power is cut off, the permanent magnet attracts the iron core, achieving power-off holding. Thus, while the double-headed electromagnet 1 can achieve bidirectional movement, the permanent magnet can also achieve bidirectional holding. This facilitates the switching between two steady states of the double-headed electromagnet 1 without the need for continuous power supply to maintain the state, saving energy and improving the stability of the system.

[0027] The stator mechanism 4 includes an annular shell, which is fixedly connected to the outside of the test chamber 5. Multiple sets of coils 41 are installed inside the annular shell. All sets of coils 41 are electrically connected to an external power source and cooperate with some of the magnetic poles of the permanent magnet.

[0028] The magnetic poles of the permanent magnet are opposite to the magnetic poles of the magnetic field generated by the energized coil 41. Under the magnetic attraction of the magnetic field generated by the energized coil 41, the corresponding magnetic poles of the permanent magnet deflect toward the energized coil 41. Then, with the sequential energization of multiple sets of coils 41, the permanent magnet deflects in sequence, and finally the permanent magnet drives the double-headed electromagnet 1 to rotate.

[0029] Meanwhile, when the multi-stage magnetized permanent magnets magnetically attract the iron core in the double-headed electromagnet 1, they can generate different magnetic force distributions, forming a more complex magnetic field distribution in a specific space. This increases the magnetic flux density through the iron core, making the induced magnetic field generated inside the iron core stronger, enhancing the attraction between the two, improving the magnetic attraction effect on the iron core, and thus improving the holding force of the double-headed electromagnet 1.

[0030] The test chamber 5 includes a cleaning mechanism, a salt spray test mechanism, and an electromagnetic performance testing mechanism 7. A pendulum valve 3 is installed in the middle of the test chamber 5. The cleaning mechanism and the salt spray test mechanism are both connected to the top of the test chamber 5, and their working ends are directly opposite the double-headed electromagnet 1. The electromagnetic performance testing mechanism 7 is connected to the bottom of the test chamber 5, and its working end is directly opposite the double-headed electromagnet 1 placed at the bottom of the test chamber 5 by the support mechanism 8.

[0031] It also includes a current and voltage monitoring module 6, which is installed on the test chamber 5. An electric slip ring 82 is installed on a support ring 85. The rotating end of the electric slip ring 82 is electrically connected to the double-headed electromagnet 1, and the fixed end is electrically connected to the current and voltage monitoring module 6 by a conductive wire 61.

[0032] The test chamber 5 has a through hole for the conductive wire 61 to pass through in a sealed manner.

[0033] The current and voltage monitoring module 6 adopts existing technology. On the one hand, it detects the induced current generated by the coil in the double-headed electromagnet 1 through the conductive wire 61. On the other hand, it supplies power to the double-headed electromagnet 1 through the conductive wire 61, which facilitates subsequent detection of the working status of the double-headed electromagnet 1.

[0034] When the valve core of the pendulum valve 3 is closed, it seals and divides the interior of the test chamber 5 into an upper chamber and a lower chamber, with the upper chamber located above the lower chamber.

[0035] The cleaning mechanism includes a water inlet pipe 10, one end of which is connected to an external water source and the other end is connected to the top of the upper chamber. An ultrasonic cleaning head 55 is installed on the side of the upper chamber, and the working end of the ultrasonic cleaning head 55 is fixedly connected to the side wall of the upper chamber. A water outlet pipe 11 is connected to the bottom of the upper chamber. Water valves are installed on both the water inlet pipe 10 and the water outlet pipe 11.

[0036] The water flow status of the inlet pipe 10 and the outlet pipe 11 is controlled by a water valve.

[0037] The cleaning mechanism also includes a drying component, which includes an air extraction pipe 53. One end of the air extraction pipe 53 is connected to an external vacuum pump, and the other end is connected to the interior of the upper chamber. A microwave heating mechanism 54 is installed on the side of the upper chamber, with the working end of the microwave heating mechanism 54 facing the interior of the upper chamber.

[0038] An infrared temperature sensor 9 is installed on the upper chamber. The working end of the infrared temperature sensor 9 is directly facing the double-headed electromagnet 1. The infrared temperature sensor 9 is electrically connected to a controller. The controller is installed on the workbench 2 and is electrically connected to an alarm. The controller receives the signal from the infrared temperature sensor 9 and controls the working status of the alarm.

[0039] The salt spray test mechanism includes an atomizing nozzle 56 installed in the upper chamber. The input end of the atomizing nozzle 56 is sealed and penetrates the upper chamber, and is connected to a liquid inlet pipe 57. The liquid inlet pipe 57 is connected to an external salt water source, and the output end of the atomizing nozzle 56 is directly facing the double-headed electromagnet 1.

[0040] When the double-headed electromagnet 1 is subjected to salt spray test, since salt spray corrosion is an electrochemical corrosion process, an oxidation-reduction reaction occurs on the metal surface during this process, which is accompanied by heat generation. During the continuous salt spray corrosion process, the heat accumulation causes the surface temperature of the double-headed electromagnet 1 to rise. The infrared temperature sensor 9 detects this temperature change and thus determines whether the salt spray test is qualified.

[0041] The electromagnetic performance testing mechanism 7 includes a clamping assembly and a testing assembly connected to the lower chamber. The output end of the clamping assembly abuts against the outside of the double-headed electromagnet 1. The testing assembly includes a testing plate 72 slidably connected to the worktable 2. A through slot is provided on the stator mechanism 4 for the testing plate 72 to move. Electric cylinders 79 are installed at both ends of the testing plate 72. Clamping plates 78 are fixedly connected to the output ends of the electric cylinders 79. When the output ends of the electric cylinders 79 extend, both clamping plates 78 extend through into the lower chamber and abut against the two working surfaces of the double-headed electromagnet 1. On the end, two thrust detectors 71 and two electric cylinders 710 are installed on the workbench 2. The working ends of the two thrust detectors 71 are fixedly connected to the two ends of the detection plate 72. The two electric cylinders 710 are symmetrically distributed, and their output ends extend and abut against the bottom of the detection plate 72. A slide rod 73 is fixedly connected to the side of the detection plate 72. The middle of the slide rod 73 passes through the stator mechanism 4. A sleeve 75 is fixedly connected inside the stator mechanism 4. A displacement sensor 74 is installed inside the sleeve 75. The working end of the displacement sensor 74 faces the slide rod 73.

[0042] Both the thrust detector 71 and the displacement sensor 74 are existing technologies. When the working end of the double-headed electromagnet 1 extends, the working end of the thrust detector 71 is pushed by the clamping plate 3 78, the electric cylinder 1 79 and the detection plate 72, and the thrust detector 71 works to obtain the thrust of the working end of the double-headed electromagnet 1 extending. The displacement sensor 74 records the displacement data of the detection plate 72 through the slide rod 73.

[0043] The clamping assembly includes two electric cylinders 711 (third) and two electric cylinders 712 (fourth) installed at the bottom of the lower chamber. Each of the output ends of the two electric cylinders 711 is fixedly connected to a clamping plate 76. When the output ends of the electric cylinders 711 are extended, the two clamping plates 76 abut against the two sides of the double-headed electromagnet 1. Each of the output ends of the two electric cylinders 712 is fixedly connected to a clamping plate 77. The height of the clamping plate 77 is less than the height of the clamping plate 76. When the output ends of the electric cylinders 712 are extended, the two clamping plates 77 abut against the two ends of the double-headed electromagnet 1. A sliding groove is provided at the bottom of the lower chamber for the two clamping plates 76 and the two clamping plates 77 to move.

[0044] The height of clamp 2 77 is less than the height of clamp 1 76 to avoid interference between clamp 2 77 and the working end of double-headed electromagnet 1.

[0045] When using this invention, the operator opens the sealing door 51, and the motor 84 in the support mechanism 8 starts working. Its output end drives the gear 87 to rotate, and the gear 87 drives the rack 86 that meshes with it to rotate, thereby causing the support ring 85 to rotate inside the sleeve plate 83, so that the notch of the support ring 85 is transferred to the side. At this time, the two working ends of the double-headed electromagnet 1 to be tested are placed in the two support rings 85 of the support mechanism 8 respectively.

[0046] When motor 52 is working, its output end drives the bidirectional lead screw mechanism 58 to rotate. Under the guidance of the linear slider mechanism 59, it drives the two electric cylinders 81 to move. The distance between the two electric cylinders 81 is adjusted to match the length of the double-headed electromagnet 1.

[0047] The operator places one output end of the double-headed electromagnet 1 on the support ring 85 equipped with an electric slip ring 82, and the other output end on the support ring 85 without an electric slip ring 82. The two support rings 85 provide support for the double-headed electromagnet 1. The operator connects the power cord of the double-headed electromagnet 1 to the rotating end of the electric slip ring 82, and the conductor 61 led out from the fixed end of the electric slip ring 82 is connected to the current and voltage monitoring module 6.

[0048] After confirming that the wiring was connected and taking necessary precautions, the staff closed the sealed door 51.

[0049] When the pendulum valve 3 is activated, the valve core of the pendulum valve 3 closes, dividing the test chamber 5 into two areas: the upper chamber and the lower chamber.

[0050] When the stator mechanism 4 is working, the external power supply energizes the multiple coils 41 inside the stator mechanism 4, generating a changing magnetic field, which acts on the permanent magnet in the double-headed electromagnet 1. Under the action of the changing magnetic field, the permanent magnet rotates, thereby driving the double-headed electromagnet 1 to rotate, which facilitates the subsequent cleaning and salt spray test of the double-headed electromagnet 1.

[0051] Then, a cleaning operation is carried out. External water is introduced into the upper room through the water inlet pipe 10 for cleaning. After a period of time, the water inlet pipe 10 stops releasing water. At the same time, the ultrasonic cleaning transducer 55 is energized to perform ultrasonic vibration inside the test chamber 5. Under the continuous rotation of the double-headed electromagnet 1 and the ultrasonic cleaning of the cleaning water, the dirt on the surface of the double-headed electromagnet 1 is thoroughly cleaned, effectively preventing dirt from affecting subsequent test operations.

[0052] Meanwhile, the coil inside the double-headed electromagnet 1 is also continuously cutting the magnetic field lines of the magnetic field generated by the stator mechanism 4. An induced current is generated in the coil inside the double-headed electromagnet 1. The induced current is introduced into the current and voltage monitoring module 6 through the conductive wire 61. When no current enters, it is determined that there is an open circuit in the double-headed electromagnet 1; when the current entering is too large, it is determined that there is a short circuit in the double-headed electromagnet 1.

[0053] After the water outlet pipe 11 is opened to drain the water, when it is determined that the double-headed electromagnet 1 is abnormal, the equipment will issue an alarm. The staff will open the sealing door 51, remove the double-headed electromagnet 1 and replace it with the next double-headed electromagnet 1.

[0054] When no abnormality is detected, the external vacuum pump operates, drawing air out of the test chamber 5 through the suction pipe 53 to create a negative pressure. At the same time, the microwave heating mechanism 54 operates to microwave heat the test chamber 5. Under the negative pressure environment, the boiling point of water is greatly reduced, causing the water to rapidly vaporize under microwave heating and be drawn away by the suction pipe 53. After a period of time, the drying is considered complete.

[0055] Infrared temperature sensor 9 monitors the temperature to ensure that the temperature does not affect the performance of the permanent magnet.

[0056] Then, the atomizing nozzle 56 sprays the prepared salt water into the test chamber 5 through the liquid inlet pipe 57. Under the continuous rotation of the double-headed electromagnet 1, salt water particles are attached to the surface of the double-headed electromagnet 1. The current intensity entering the stator mechanism 4 is controlled to make the double-headed electromagnet 1 rotate slowly under the action of the stator mechanism 4. The infrared temperature sensor 9 detects the surface temperature of the double-headed electromagnet 1 in real time. If the surface temperature of the double-headed electromagnet 1 rises during the salt spray test, it is determined that the double-headed electromagnet 1 is corroded and rust appears, and an alarm is triggered. The staff removes the double-headed electromagnet 1 and replaces it with the next double-headed electromagnet 1. If the surface temperature of the double-headed electromagnet 1 does not show any abnormality during the salt spray test, the salt spray test is qualified and the corrosion resistance of the double-headed electromagnet 1 is qualified. The water inlet pipe 10 introduces cleaning water, and the double-headed electromagnet 1 is cleaned under the action of the ultrasonic cleaning head 55. Then, it is dried by negative pressure heating through the drying component. At this time, the hardware function of the double-headed electromagnet 1 is normal and sufficiently clean.

[0057] When the pendulum valve 3 opens, the output ends of the two electric cylinders 81 extend, causing the two support rings 85 to move downwards, thereby causing the double-headed electromagnet 1 to move downwards into the lower chamber. Subsequently, the output end of the motor 52 rotates in the opposite direction, increasing the distance between the two support rings 85, causing one working end of the double-headed electromagnet 1 to slide down from the support ring 85 equipped with an electric slip ring 82. At the same time, the motor 84 operates, causing the support ring 85 to rotate so that its notch faces downwards, facilitating the other working end of the double-headed electromagnet 1 to slide down from the notch of the support ring 85, thus completing the transfer of the double-headed electromagnet 1.

[0058] Subsequently, the output ends of the two electric cylinders 81 partially retract to prevent the support ring 85 from affecting the operation of the subsequent electromagnetic performance testing mechanism 7.

[0059] When the clamping assembly in the electromagnetic performance testing mechanism 7 is activated, the output ends of the two electric cylinders 711 in the clamping assembly extend, driving the two clamping plates 76 to move and abut against both sides of the double-headed electromagnet 1, positioning the double-headed electromagnet 1 in the width direction; the output ends of the two electric cylinders 712 extend, driving the two clamping plates 77 to move and abut against both ends of the double-headed electromagnet 1, positioning the double-headed electromagnet 1 in the length direction, completing the four-way compression and fixation of the double-headed electromagnet 1, improving its stability in subsequent testing operations.

[0060] During the holding force test, the output ends of the two electric cylinders 79 extend, driving the two clamping plates 78 to move, so that the two clamping plates 78 abut against the two working ends of the double-headed electromagnet 1, thus completing the clamping of the working ends of the double-headed electromagnet 1 and adapting to ensure the double-headed electromagnet 1 of different sizes.

[0061] Subsequently, the current and voltage monitoring module 6 supplies current to the double-ended electromagnet 1 through the conductive wire 61. The working end of the double-ended electromagnet 1 extends in one direction and drives the detection plate 72 to slide. The sliding of the detection plate 72 drives the sliding rod 73 to slide. The sliding of the sliding rod 73 exerts pressure on the thrust detector 71 in the same direction, and the displacement stroke of the sliding rod 73 is detected by the displacement sensor 74. The thrust detector 71 determines the push-out force of the working end of the double-ended electromagnet 1, which is also the attraction force of the electromagnet in that direction. Then, the current in the opposite direction is supplied, and the other working end of the double-ended electromagnet 1 extends. Finally, the displacement stroke of the other working end of the double-ended electromagnet 1 and the attraction force of the electromagnet in the other direction are obtained.

[0062] Then the power is disconnected, and the output end of one of the electric cylinders 710 extends to push the detection plate 72. The detection plate 72 pushes the working end of the double-headed electromagnet 1 through the electric cylinder 79 and the clamping plate 78 to test the holding force of one end of the permanent magnet, that is, its magnetic attraction to the iron core, and compares the stroke and attraction when energized. Then the output end of the other end of the electric cylinder 710 extends to test the holding force of the other end of the permanent magnet, and compares the stroke and attraction when energized.

[0063] During the test of the holding force of the permanent magnet, the infrared temperature sensor 9 monitors the temperature rise of the dual-headed electromagnet 1 in real time and obtains temperature data.

[0064] Finally, electric cylinders 79 to 712 reset, stopping the positioning of the double-headed electromagnet 1. The output end of electric cylinder 81 extends, and motor 84 operates to rotate the support ring 85. Through the guide head 810, one working end of the double-headed electromagnet 1 is scooped up and placed on the support ring 85. Motor 52 operates to bring the two electric cylinders 81 closer together, so that the other working end of the double-headed electromagnet 1 is also inserted into the other support ring 85. Then, electric cylinder 81 resets, bringing the double-headed electromagnet 1 from the lower chamber to the upper chamber. The operator opens the sealed door 51, removes the double-headed electromagnet 1, and records the data.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A comprehensive performance test bench for dual-headed electromagnets, comprising a workbench (2), a test chamber (5) fixedly connected to the workbench (2), and a sealing door (51) installed on the side of the test chamber (5), characterized in that, Also includes: Support mechanism (8) is connected to the top of the test chamber (5), and a double-headed electromagnet (1) is rotatably placed on the working end. Stator mechanism (4) is installed on the outside of test chamber (5). The double-headed electromagnet (1) is a double-held double-headed electromagnet. Its internal permanent magnet is a multi-stage magnet. When the stator mechanism (4) is working, it drives the double-headed electromagnet (1) to rotate. The cleaning mechanism, salt spray test mechanism and electromagnetic performance testing mechanism (7) are installed in the middle of the test chamber (5). The cleaning mechanism and salt spray test mechanism are both connected to the top of the test chamber (5) and their working ends are directly opposite the double-headed electromagnet (1). The electromagnetic performance testing mechanism (7) is connected to the bottom of the test chamber (5) and its working end is directly opposite the double-headed electromagnet (1) placed at the bottom of the test chamber (5) by the support mechanism (8).

2. The dual-head electromagnet comprehensive performance test bench according to claim 1, characterized in that, The support mechanism (8) includes two adjusting electric cylinders (81), which are movably connected to the top of the test chamber (5) and have a sleeve plate (83) fixedly connected to their output ends. A motor (84) is installed on the side of the sleeve plate (83), and the output end of the motor (84) extends through into the sleeve plate (83) and is coaxially fixedly connected to a gear (87). A support ring (85) is slidably sleeved inside the sleeve plate (83). The support ring (85) is three-quarters of a circular ring and has a rack coaxially fixedly connected to its outer side. (86) The rack (86) and gear (87) mesh with each other. Multiple rollers (88) are rotatably connected inside the sleeve (83). The multiple rollers (88) are symmetrically distributed and abut against both sides of the support ring (85). Limit blocks (89) and guide heads (810) are fixedly connected to both ends of the support ring (85). The sleeve (83) is located on the rotation path of the limit block (89). The two working ends of the double-headed electromagnet (1) are placed in the two support rings (85) whose notches are not at the bottom after rotation.

3. The dual-head electromagnet comprehensive performance test bench according to claim 2, characterized in that, A motor (52) is installed on the outside of the test chamber (5). The output end of the motor (52) is sealed and extends into the test chamber (5), and is coaxially fixedly connected to a two-way screw mechanism (58). Two linear slider mechanisms (59) are threadedly connected to the two-way screw mechanism (58). A guide rod is fixedly connected to the top of the test chamber (5). The linear slider mechanism (59) is slidably connected to the guide rod. Two adjusting electric cylinders (81) are installed one-to-one at the bottom of the two linear slider mechanisms (59).

4. The dual-head electromagnet comprehensive performance test bench according to claim 1, characterized in that, It also includes a current and voltage monitoring module (6), which is installed on the test chamber (5). An electric slip ring (82) is installed on a support ring (85). The rotating end of the electric slip ring (82) is electrically connected to the double-headed electromagnet (1), and the fixed end is electrically connected to the current and voltage monitoring module (6) by a conductive wire (61).

5. The dual-head electromagnet comprehensive performance test bench according to claim 1, characterized in that, The stator mechanism (4) includes an annular shell, which is fixedly connected to the outside of the test chamber (5). Multiple sets of coils (41) are installed inside the annular shell. All sets of coils (41) are electrically connected to the external power supply and cooperate with some of the magnetic poles of the permanent magnet.

6. The dual-head electromagnet comprehensive performance test bench according to claim 1, characterized in that, When the valve core of the pendulum valve (3) is closed, it seals and divides the interior of the test chamber (5) into an upper chamber and a lower chamber. The upper chamber is located above the lower chamber. The cleaning mechanism includes a water inlet pipe (10). One end of the water inlet pipe (10) is connected to an external water source, and the other end is connected to the top of the upper chamber. An ultrasonic cleaning head (55) is installed on the side of the upper chamber. The working end of the ultrasonic cleaning head (55) is fixedly connected to the side wall of the upper chamber. A water outlet pipe (11) is connected to the bottom of the upper chamber. Water valves are installed on both the water inlet pipe (10) and the water outlet pipe (11).

7. The dual-head electromagnet comprehensive performance test bench according to claim 6, characterized in that, The cleaning mechanism also includes a drying component, which includes an air extraction pipe (53). One end of the air extraction pipe (53) is connected to an external vacuum pump, and the other end is connected to the interior of the upper chamber. A microwave heating mechanism (54) is installed on the side of the upper chamber. The working end of the microwave heating mechanism (54) faces the interior of the upper chamber. An infrared temperature sensor (9) is installed on the upper chamber. The working end of the infrared temperature sensor (9) faces the double-headed electromagnet (1). The infrared temperature sensor (9) is electrically connected to a controller. The controller is installed on the workbench (2). The controller is electrically connected to an alarm. The controller receives the signal from the infrared temperature sensor (9) and controls the working status of the alarm.

8. The dual-headed electromagnet comprehensive performance test bench according to claim 7, characterized in that, The salt spray test mechanism includes an atomizing nozzle (56) installed in the upper chamber. The input end of the atomizing nozzle (56) is sealed through the upper chamber and connected to a liquid inlet pipe (57). The liquid inlet pipe (57) is connected to an external salt water source. The output end of the atomizing nozzle (56) is directly facing a double-headed electromagnet (1).

9. The dual-head electromagnet comprehensive performance test bench according to claim 6, characterized in that, The electromagnetic performance testing mechanism (7) includes a clamping assembly and a testing assembly connected to the lower chamber. The output end of the clamping assembly abuts against the outside of the double-headed electromagnet (1). The testing assembly includes a testing plate (72) slidably connected to the worktable (2). A through slot is provided on the stator mechanism (4) for the testing plate (72) to move. Electric cylinders (79) are installed at both ends of the testing plate (72). Clamping plates (78) are fixedly connected to the output end of electric cylinders (79). When the output end of electric cylinders (79) is extended, the two clamping plates (78) extend into the lower chamber and abut against the two working ends of the double-headed electromagnet (1) respectively. Two thrust detectors (71) and two electric cylinders (710) are installed on the worktable (2). The working ends of the two thrust detectors (71) are fixedly connected to the two ends of the detection plate (72) in a corresponding manner. The two electric cylinders (710) are symmetrically distributed, and their output ends are extended and abut against the bottom of the detection plate (72). A slide rod (73) is fixedly connected to the side of the detection plate (72). The middle part of the slide rod (73) passes through the stator mechanism (4). A sleeve (75) is fixedly connected inside the stator mechanism (4). A displacement sensor (74) is installed inside the sleeve (75). The working end of the displacement sensor (74) is directly opposite the slide rod (73).

10. The dual-head electromagnet comprehensive performance test bench according to claim 9, characterized in that, The clamping assembly includes two electric cylinders three (711) and two electric cylinders four (712) installed at the bottom of the lower chamber. The output ends of the two electric cylinders three (711) are fixedly connected to clamping plates one (76). When the output ends of the electric cylinders three (711) are extended, the two clamping plates one (76) abut against the two sides of the double-headed electromagnet (1) respectively. The output ends of the two electric cylinders four (712) are fixedly connected to clamping plates two (77). The height of clamping plates two (77) is less than the height of clamping plates one (76). When the output ends of the electric cylinders four (712) are extended, the two clamping plates two (77) abut against the two ends of the double-headed electromagnet (1) respectively. The bottom of the lower chamber is provided with a sliding groove for the two clamping plates one (76) and two clamping plates two (77) to move.

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