Magnetic field rapid power-off verification auxiliary device

Abstract

The utility model discloses a magnetic field rapid power-off verification auxiliary device, which comprises a base, a clamping and fixing assembly, a centering assembly and a voltage inductor, and is characterized in that the base is used for placing a magnetizing coil, and the voltage inductor is used for being placed at the circle center position of the coil and detecting the voltage generated after the coil is powered on and is rapidly powered off; a driving structure is arranged on the base, the driving structure is used for driving the fixing assembly to clamp the magnetizing coils of different sizes, and the fixing assembly and the driving structure are both fixedly installed on the base; wherein the centering assembly is installed on the fixing assembly in a sliding mode, the centering assembly is used for supporting coils of different sizes, and the centering assembly is used for installing the voltage inductor; the objective of the utility model is to solve the problems in the prior art that the test result is not accurate when a magnetizing coil is subjected to a magnetic field rapid power-off verification test, and coils with different sizes cannot be installed and detected.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle non-destructive testing, in particular to an auxiliary device for rapid power-off verification of magnetic fields. Background Technique

[0002] When conducting periodic tests on rapid power-off verification of magnetic fields, prepare the required experimental equipment, including magnetic field measuring instruments, magnets, wires, etc., to ensure that all equipment is in good working condition; then make corresponding adjustments to the experimental environment to avoid the influence of external interference on the experimental results and ensure the accuracy and reliability of the experiment; then understand the basic principles and related knowledge of magnetic field experiments, as well as the principle of rapid power-off effect, in order to better understand and analyze the experimental results. Next, set up the experimental device. In this process, before measuring the magnetic field, first calibrate the used magnetic field measuring instrument to eliminate the errors of the instrument itself, ensure the accuracy of the measurement results, and set up the experimental device according to the requirements of the experiment to measure the magnetic field. The experimental device should be set up as stably and vertically as possible to reduce the influence of external factors. At the same time, adjust the relative position and angle between the magnet and the object to be measured (such as a wire) to ensure the uniformity and stability of the magnetic field.

[0003] In the final stage, according to the principle of rapid power-off technology, perform rapid power-off operations during the magnetic field measurement process. This usually involves the interruption of direct current on a conductor to generate induced current and detect the change of the magnetic field. During the rapid power-off process, use a magnetic field measuring instrument to measure the magnetic field. Select appropriate measurement methods and techniques, keep the instrument stable and accurate, and avoid the influence of human factors on the measurement results. To improve the accuracy and reliability of the measurement results, conduct multiple measurements. Each time a measurement is made, restore the measurement instrument to its initial state to avoid the influence of the previous experiment on the results. The final measurement results should take the average of multiple measurements to reduce the influence of random errors.

[0004] In the prior art, when conducting periodic tests on rapid power-off verification of magnetic fields, the handheld measuring instrument is placed inside the magnetization coil for testing. Different operators will result in deviations in the accuracy and consistency of the detection results, leading to errors in the rapid power-off verification test results of the magnetic field and affecting the verification results of magnetic particle detection equipment; and due to the different sizes of the detection coils, the prior art cannot detect coils of different sizes. Summary of the Invention

[0005] The utility model provides an auxiliary device for rapid power-off verification of magnetic fields, aiming to solve the problems that the test results of the magnetization coil in the prior art during rapid power-off verification tests of magnetic fields are inaccurate and it is impossible to install and detect coils of different sizes.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A magnetic field rapid power-off verification auxiliary device, comprising a base, a clamping and fixing component, a centering component and a voltage inductor. The base is used for placing a magnetization coil, and the voltage inductor is used for being placed at the center position of the coil and detecting the voltage generated after the coil is powered on and then rapidly powered off.

[0008] A driving structure is arranged on the base. The driving structure is used for driving the fixing component to clamp magnetization coils of different sizes. The fixing component and the driving structure are both fixedly installed on the base.

[0009] Wherein, the centering component is slidably installed on the fixing component. The centering component is used for supporting coils of different sizes, installing the voltage inductor, and making the voltage inductor located at the center position of the coil. The fixing component and the centering component are both made of non-magnetic materials.

[0010] Further, the clamping and fixing component includes a fixed seat and a sliding seat. The fixed seat is fixedly installed on the base. The centering component is slidably installed on the fixed seat. The sliding seat is slidably installed on the base. The driving structure is installed on the base. The driving structure is connected to the sliding seat and is used for driving the sliding seat to slide on the base.

[0011] Further, the centering component includes a support disc, a support crank, a rotating rod and a test hole. One end of the support disc is provided with a bracket, and the bracket is slidably connected to the fixed seat. The other end of the support disc is provided with an installation groove. A plurality of rotating grooves are arranged inside the support disc. Each rotating groove internally slidably installs a support crank. The support crank and the rotating rod are rotatably installed inside the rotating groove. The rotating rod is used for driving a plurality of support cranks to rotate inside the rotating groove through a transmission mechanism. The test hole is arranged on the rotating rod, and the voltage inductor is used for being installed in the test hole. There is a gap between the rotating rod and the voltage inductor.

[0012] Further, the driving structure includes a motor, a ball screw and a screw nut. The fixed end of the motor is installed on the base. The output shaft of the motor passes through the base and is connected to the ball screw. The screw nut is fixedly installed on the sliding seat. One end of the ball screw is matched with the screw nut, and the other end is fixedly connected to the output shaft of the motor.

[0013] Further, the transmission mechanism includes a driving gear and a plurality of driven gears. The driving gear is fixedly sleeved on the rotating rod. A rotating shaft is rotatably arranged inside the rotating groove. One end of the support crank and the driven gears are both fixedly connected to the rotating shaft. The driving gear meshes with the driven gears. A fixing component is arranged on the rotating shaft, and the fixing component is used for fixing the driving gear.

[0014] Further, the fixing component includes a limit pin, a jack, and a plurality of limit holes. The plurality of limit holes are arranged in an array on the rotating groove. The jack is arranged on the driving gear. The limit pin is used to be inserted into the limit holes through the jack to fix the position of the driving gear.

[0015] Further, a roller is arranged on the support crank. The roller is used to contact the inner surface of the coil.

[0016] Further, a guide rod is arranged on the fixed seat. The sliding seat is used to slide on the guide rod.

[0017] Further, a rotating handle is arranged on the rotating rod.

[0018] Further, rubber pads are arranged on the end faces of the fixed seat and the sliding seat close to the coil.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The present utility model mainly includes a base, a clamping and fixing component, a centering component, and a voltage inductor. During actual use, the staff installs the magnetization coil on the fixing component. Under the action of the driving structure, the fixing component clamps the magnetization coil. Then, the centering component is installed inside the magnetization coil. After the centering component operates, it supports the inner surface of the magnetization coil. At this time, the axis of the centering component is collinear with the axis of the magnetization coil. Then, the voltage inductor is inserted at the axis of the centering component. At this time, the magnetization coil is powered on and then powered off after 1S. At this time, the voltage inductor will detect the voltage generated after the magnetization coil is powered on, and then continuously perform power-on and power-off operations for repeated testing. When it is necessary to detect magnetization coils of other sizes, it is necessary to control the driving structure again to drive the fixing component to fix the magnetization coil, and then perform the test. The advantage of such a setting is that the voltage inductor can be installed at the axis position of the magnetization coil through the centering component. The voltage value detected at the axis position is relatively accurate, and different sizes of magnetization coils can be fixed through the fixing component, with a wider scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a structural schematic diagram of the present utility model.

[0023] Figure 2For the present utility model Figure 1 Partial enlarged view of location A in the present utility model

[0024] Figure 3 Front view of the present utility model

[0025] Figure 4 Side view of the present utility model

[0026] In the figure, 101 - base, 102 - voltage inductor, 103 - coil, 104 - fixing seat, 105 - sliding seat, 106 - support disc, 107 - support crank, 108 - rotating rod, 109 - test hole, 110 - bracket, 111 - installation groove, 112 - rotating groove, 113 - motor, 114 - ball screw, 115 - screw nut, 116 - driving gear, 117 - driven gear, 118 - rotating shaft, 119 - jack, 120 - roller, 121 - guide rod, 122 - rotating handle Specific embodiments

[0027] The following further describes the present utility model in conjunction with embodiments. The described embodiments are only a part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model

[0028] Please refer to Figures 1-4 As shown, this embodiment discloses a magnetic field rapid power-off verification auxiliary device, including a base 101, a clamping and fixing component, a centering component, and a voltage inductor 102. The base 101 is used to place the magnetization coil 103, and the voltage inductor 102 is used to be placed at the center of the coil 103 and detect the voltage generated after the coil 103 is quickly powered off after being energized

[0029] A driving structure is arranged on the base 101, and the driving structure is used to drive the fixing component to clamp magnetization coils 103 of different sizes. The fixing component and the driving structure are both fixedly installed on the base 101

[0030] Among them, the centering component is slidably installed on the fixing component. The centering component is used to support coils 103 of different sizes, the centering component is used to install the voltage inductor 102, and the centering component is used to make the voltage inductor 102 located at the center of the coil 103. The fixing component and the centering component are both made of non-magnetic materials

[0031] The utility model mainly includes a base 101, a clamping and fixing component, a centering component and a voltage inductor 102. During actual use, the staff installs the magnetization coil 103 on the fixing component. Under the action of the driving structure, the fixing component clamps the magnetization coil 103. Then, the centering component is installed inside the magnetization coil 103. After the centering component operates, it supports the inner surface of the magnetization coil 103. At this time, the axis of the centering component is collinear with the axis of the magnetization coil 103. Then, the voltage inductor 102 is inserted at the axis of the centering component. At this time, the magnetization coil 103 is powered on and then powered off after 1 s. At this time, the voltage inductor 102 will detect the voltage generated after the magnetization coil 103 is powered on, and then continuously perform power-on and power-off operations for repeated testing; when it is necessary to detect magnetization coils 103 of other sizes, it is necessary to control the driving structure again to drive the fixing component to fix the magnetization coil 103, and then perform the test; the advantage of such a setting is that the voltage inductor 102 can be installed at the axis position of the magnetization coil 103 through the centering component, and the voltage value detected at the axis position is relatively accurate. In addition, different sizes of magnetization coils 103 can be fixed through the fixing component, and the applicable range is wider.

[0032] In some embodiments, the clamping and fixing component includes a fixed seat 104 and a sliding seat 105. The fixed seat 104 is fixedly installed on the base 101. The centering component is slidably installed on the fixed seat 104. The sliding seat 105 is slidably installed on the base 101. The driving structure is installed on the base 101. The driving structure is connected to the sliding seat 105 and is used to drive the sliding seat 105 to slide on the base 101.

[0033] During actual use, when it is necessary to fix the magnetization coil 103, the staff controls the driving structure to operate. The driving structure controls the sliding seat 105 to slide on the base 101, and a mounting space is generated between the sliding seat 105 and the fixed seat 104.

[0034] In some embodiments, the centering component includes a support disk 106, a support crank 107, a rotating rod 108 and a test hole 109; one end of the support disk 106 is provided with a bracket 110. The bracket 110 is slidably connected to the fixed seat 104. The other end of the support disk 106 is provided with a mounting groove 111. A plurality of rotating grooves 112 are arranged inside the support disk 106. Each rotating groove 112 is slidably installed with a support crank 107. The support crank 107 and the rotating rod 108 are rotatably installed inside the rotating groove 112. The rotating rod 108 is used to drive a plurality of support cranks 107 to rotate inside the rotating groove 112 through a transmission mechanism. The test hole 109 is arranged on the rotating rod 108. The voltage inductor 102 is used to be installed in the test hole 109, and there is a gap between the rotating rod 108 and the voltage inductor 102.

[0035] During actual use, when centering the magnetization coil 103, the operator rotates the rotating rod 108. After the rotating rod 108 rotates, it drives the transmission mechanism to rotate. Under the action of the transmission mechanism, the rotating rod 108 drives the support crank 107 to rotate. The support crank 107 rotates out of the rotating groove 112 and finally contacts the inner surface of the magnetization coil 103. Since the support cranks 107 are arranged in an array, several support cranks 107 rotate out synchronously to support the inner surface of the magnetization coil 103. During this process, the two support cranks 107 at the bottom contact the inner surface of the magnetization coil 103 first. At this time, the test hole 109 is not located at the axis position of the magnetization coil 103. As the rotating rod 108 rotates, the support disk 106 is supported and drives it to slide in the fixed seat 104, thereby causing the overall height of the support disk 106 to increase. Since the lengths of the support cranks 107 are the same, until several support cranks 107 all contact the inner surface of the magnetization coil 103, the test hole 109 is naturally located at the axis of the magnetization coil 103. At this time, by installing the voltage inductor 102 inside the test hole 109, the most accurate electromagnetic detection can be completed under the continuous power-on and power-off of the magnetization coil 103.

[0036] In some embodiments, the driving structure includes a motor 113, a ball screw 114, and a screw nut 115. The fixed end of the motor 113 is installed on the base 101. The output shaft of the motor 113 passes through the base 101 and is connected to the ball screw 114. The screw nut 115 is fixedly installed on the sliding seat 105. One end of the ball screw 114 is engaged with the screw nut 115, and the other end is fixedly connected to the output shaft of the motor 113.

[0037] During actual use, when the motor 113 rotates, it drives the ball screw 114 to rotate. Since the screw nut 115 and the ball screw 114 are in threaded engagement with each other, the screw nut 115 will drive the entire sliding seat 105 to slide on the base 101, thereby achieving the purpose of separating the fixed seat 104 and the sliding seat 105 from each other.

[0038] In some embodiments, the transmission mechanism includes a driving gear 116 and several driven gears 117. The driving gear 116 is fixedly sleeved on the rotating rod 108. A rotating shaft 118 is rotatably arranged inside the rotating groove 112. One end of the support crank 107 and the driven gear 117 are both fixedly connected to the rotating shaft 118. The driving gear 116 and the driven gear 117 are meshed with each other. A fixing component is arranged on the rotating shaft, and the fixing component is used to fix the driving gear 116.

[0039] During actual use, when the rotating rod 108 rotates, it drives the driving gear 116 to rotate. After the driving gear 116 rotates, it drives a number of driven gears 117 to rotate. The driven gears 117 drive the rotating shaft 118 and the support crank 107 to rotate together, thereby achieving the purpose of rotating the rotating rod 108 and then rotating a number of support cranks 107.

[0040] In some embodiments, the fixing assembly includes a limit pin, a jack 119, and a number of limit holes. The number of limit holes is arranged in an array on the rotating groove 112. The jack 119 is arranged on the driving gear 116. The limit pin is used to fix the position of the driving gear 116 by being inserted into the limit hole through the jack 119.

[0041] During actual use, when it is necessary to fix the position of the driving gear 116, the staff needs to insert the limit pin into the limit hole through the jack 119, so that the driving gear 116 cannot rotate forward and backward and is fixed. After the position of the driving gear 116 is fixed, the positions of a number of support cranks 107 are also fixed.

[0042] In some embodiments, a roller 120 is arranged on the support crank 107. The roller 120 is used to contact the inner surface of the coil 103.

[0043] During actual use, the main purpose of setting the roller 120 is that when the rotating rod 108 rotates, the two support cranks 107 at the bottom will first contact the inner surface of the magnetization coil 103. When the rotating rod 108 continues to rotate, the support crank 107 will slide on the magnetization coil 103 during the rotation. After setting the roller 120, the friction between the support crank 107 and the magnetization coil 103 will be reduced.

[0044] In some embodiments, a guide rod 121 is arranged on the fixed seat 104. The sliding seat 105 is used to slide on the guide rod 121.

[0045] During actual use, the purpose of setting the guide rod 121 is to make the sliding seat 105 slide more stably on the base 101.

[0046] In some embodiments, a rotating handle 122 is arranged on the rotating rod 108.

[0047] During actual use, the purpose of setting the rotating handle 122 is to increase the torque and facilitate the rotation of the rotating rod 108.

[0048] In some embodiments, rubber pads are arranged on the end faces of the fixed seat 104 and the sliding seat 105 close to the coil 103.

[0049] In the actual use process, the purpose of setting the rubber pad is to prevent damage to the magnetization coil 103 caused by the clamping force when the fixed seat 104 and the sliding seat 105 fix the magnetization coil 103.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it cannot be understood as a limitation to the present invention.

[0051] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0052] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, 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.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic field rapid power-off verification auxiliary device, comprising a base (101) and a voltage sensor (102), wherein the base (101) is used to place a magnetizing coil (103), and the voltage sensor (102) is used to be placed at the center of the coil (103) and detect the voltage generated after the coil (103) is powered on and quickly powered off; characterized in that : It also includes a clamping and fixing component and a centering component; a driving structure is provided on the base (101), the driving structure is used to drive the fixing component to clamp magnetizing coils (103) of different sizes, and the fixing component and the driving structure are both fixedly mounted on the base (101); The centering component is slidably mounted on the fixed component, the centering component is used to support coils (103) of different sizes, the centering component is used to install the voltage sensor (102), and the centering component is used to locate the voltage sensor (102) at the center of the coil (103), and the fixed component and the centering component are both made of non-magnetic materials.

2. A magnetic field rapid power-off verification auxiliary device according to claim 1, characterized in that: The clamping and fixing assembly comprises a fixed seat (104) and a sliding seat (105); the fixed seat (104) is fixedly mounted on the base (101); the centering assembly is slidably mounted on the fixed seat (104); the sliding seat (105) is slidably mounted on the base (101); a driving structure is mounted on the base (101); the driving structure is connected to the sliding seat (105) and is used to drive the sliding seat (105) to slide on the base (101).

3. A magnetic field rapid power-off verification auxiliary device according to claim 2, characterized in that: The centering assembly comprises a support plate (106), a support crank (107), a rotating rod (108) and a test hole (109); a bracket (110) is arranged at one end of the support plate (106), the bracket (110) is slidably connected to the fixing seat (104), a mounting groove (111) is arranged at the other end of the support plate (106), a plurality of rotating grooves (112) are arranged inside the support plate (106), and a rotating groove (112) is slidably installed inside each rotating groove (112). A support crank (107) is provided. The support crank (107) and a rotating rod (108) are rotatably mounted inside a rotating groove (112). The rotating rod (108) is used to drive a plurality of support cranks (107) to rotate inside the rotating groove (112) through a transmission mechanism. A test hole (109) is provided on the rotating rod (108). The voltage sensor (102) is used to be mounted in the test hole (109). There is a gap between the rotating rod (108) and the voltage sensor (102).

4. The magnetic field rapid power-off verification auxiliary device according to claim 2, characterized in that: The driving structure comprises a motor (113), a ball screw (114) and a screw nut (115); the fixed end of the motor (113) is mounted on a base (101); the output shaft of the motor (113) passes through the base (101) and is connected to the ball screw (114); the screw nut (115) is fixedly mounted on a sliding seat (105); one end of the ball screw (114) cooperates with the screw nut (115) and the other end is fixedly connected to the output shaft of the motor (113).

5. The magnetic field rapid power-off verification auxiliary device according to claim 3 is characterized in that: The transmission mechanism comprises a driving gear (116) and a plurality of driven gears (117); the driving gear (116) is fixedly sleeved on a rotating rod (108); a rotating shaft (118) is rotatably arranged inside the rotating groove (112); one end of the supporting crank (107) and the driven gear (117) are both fixedly connected to the rotating shaft (118); the driving gear (116) and the driven gear (117) are meshed with each other; a fixing component is arranged on the rotating shaft, and the fixing component is used to fix the driving gear (116).

6. A magnetic field rapid power-off verification auxiliary device according to claim 5, characterized in that: The fixing assembly comprises a limit pin, a plug hole (119) and a plurality of limit holes, wherein the plurality of limit holes are arranged in an array on the rotating groove (112), the plug hole (119) is arranged on the driving gear (116), and the limit pin is used to pass through the plug hole (119) and then be inserted into the limit hole to fix the position of the driving gear (116).

7. The magnetic field rapid power-off verification auxiliary device according to claim 3 is characterized in that: A roller (120) is provided on the supporting crank (107), and the roller (120) is used to contact the inner surface of the coil (103).

8. The magnetic field rapid power-off verification auxiliary device according to claim 2, characterized in that: A guide rod (121) is arranged on the fixed seat (104), and the sliding seat (105) is used for sliding on the guide rod (121).

9. The magnetic field rapid power-off verification auxiliary device according to claim 3, characterized in that: A rotating handle (122) is provided on the rotating rod (108).

10. The magnetic field rapid power-off verification auxiliary device according to claim 1, characterized in that: Rubber pads are provided on the end surfaces of the fixed seat (104) and the sliding seat (105) close to the coil (103).

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