Silicon steel sheet performance detection device under stress condition

Abstract

The invention discloses a silicon steel sheet performance detection device under a stress condition, and belongs to the technical field of material performance measurement under the stress condition, the silicon steel sheet performance detection device comprises a supporting table, and the upper wall of the supporting table is provided with a first silicon steel sheet fixing device, a magnetic conductance meter, a second silicon steel sheet fixing device and a tension device; the magnetic conductance meter is arranged between the first silicon steel sheet fixing device and the second silicon steel sheet fixing device, and the tension device is connected with the side wall of the second silicon steel sheet fixing device. The sliding block drives the limiting block to move left and right along the first linear guide rail through the tension sensor. The limiting block drives the spring shaft to move. The spring shaft compresses or releases the spring. The spring pushes the spring cover to move. The spring cover drives the second silicon steel sheet fixing device to move. Meanwhile, the tension device applies different tension to the silicon steel sheet, and the magnetic conductance meter measures the loss characteristics of the silicon steel sheet under the condition of applying different stress, which is crucial to the design and operation efficiency of the transformer.

Description

Technical Field

[0001] The invention belongs to the technical field of material performance measurement under stress conditions, and in particular relates to a silicon steel sheet performance detection device under stress conditions. Background Art

[0002] As a soft magnetic material with excellent electromagnetic properties, oriented electrical steel is widely used in the manufacture of various transformer cores. In actual operation, due to the bending effect inside the transformer and the lamination of silicon steel sheets, the core will be subjected to certain extrusion or tensile stresses, and the magnetic properties of silicon steel sheets subjected to different stresses will be very different. Although tensile stress does not cause much change in magnetic properties, even a small compressive stress will cause severe deformation of the hysteresis loop and increase hysteresis loss. Therefore, measuring the loss characteristics of silicon steel sheets under different stress conditions is crucial to the design and operation efficiency of the transformer. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for detecting the performance of silicon steel sheets under stress conditions, which at least partially solves the above technical problems.

[0004] The technical solution adopted by the present invention is as follows: a device for detecting the performance of silicon steel sheets under stress conditions, comprising a support table for supporting and fixing, wherein a first silicon steel sheet fixing device, a permeability meter, a second silicon steel sheet fixing device and a tension device are installed on the upper wall of the support table, wherein the permeability meter is arranged between the first silicon steel sheet fixing device and the second silicon steel sheet fixing device, and is used to measure the iron loss and magnetic induction of the silicon steel sheet, wherein the first silicon steel sheet fixing device and the second silicon steel sheet fixing device clamp and fix the two ends of the silicon steel sheet respectively, and the tension device is connected to the side wall of the second silicon steel sheet fixing device.

[0005] Furthermore, the tension device includes a motor, a reducer, a ball screw and an elastic buffer mechanism, the motor and the reducer are both arranged on the upper wall of the support table, the output end of the motor is connected to the reducer, and a screw mounting seat is also installed on the upper wall of the support table, the ball screw is movably arranged on the screw mounting seat, one end of the ball screw is connected to the reducer, a sliding block is movably installed on the ball screw, a tension sensor is connected to the upper wall of the sliding block, and the elastic buffer mechanism is movably arranged on the upper wall of the support table, one end of the elastic buffer mechanism is connected to the tension sensor, and the other end is connected to the side wall of the second silicon steel sheet fixing device, the motor and the reducer drive the ball screw to rotate, and the ball screw drives the sliding block to move left and right on the first linear guide rail, and when the tension sensor reaches the set tension, it stops moving.

[0006] Wherein, a first linear guide rail is installed on the upper wall of the support table close to the tension device, and the lower end of the sliding block is movably connected to the first linear guide rail.

[0007] Wherein, the elastic buffer mechanism includes a limit block, a spring cover, a spring shaft and a spring, the spring cover is arranged on the side wall of the second silicon steel sheet fixing device, the limit block is movably clamped on the first linear guide rail, one end of the spring shaft is movably clamped on the side wall of the second silicon steel sheet fixing device in the spring cover, and the other end is movably penetrated through the side wall of the spring cover, one end of the limit block is connected to the tension sensor, and the other end is connected to the spring shaft, the spring is sleeved on the outside of the spring shaft, one end of the spring is connected to the side wall of the spring cover, and the other end of the spring is connected to one end of the spring shaft arranged in the second silicon steel sheet fixing device;

[0008] When the tension device moves left and right, the sliding block drives the limit block to move left and right along the first linear guide rail through the tension sensor, the limit block drives the spring shaft to move, the spring shaft compresses or releases the spring, the spring pushes the spring cover to move, the spring cover drives the second silicon steel sheet fixing device to move, and the spring can make the tension stable.

[0009] As a preferred embodiment of the present invention, a second linear guide is further installed on the upper wall of the support table, a mounting seat is movably provided on the second linear guide, and the second silicon steel sheet fixing device is arranged on the mounting seat.

[0010] Among them, the first silicon steel sheet fixing device and the second silicon steel sheet fixing device have the same structure, and only one group is introduced here. The second silicon steel sheet fixing device includes a support plate, and the support plate on the second silicon steel sheet fixing device is arranged on the upper wall of the mounting seat, and the support plate on the first silicon steel sheet fixing device is arranged on the upper wall of the support table, and a threaded rod is installed on the upper wall of the support plate, and a threaded part is sleeved on the threaded rod, and a locking strip is installed on the bottom wall of the threaded part, and the threaded rod passes through the locking strip, and the silicon steel sheet to be inspected is placed between the locking strip and the upper wall of the support plate.

[0011] Preferably, a locking handle is installed at the upper end of the threaded member. When the silicon steel sheet needs to be fixed, the locking handle is rotated manually, and the locking handle drives the threaded member downward along the threaded rod. The threaded member moves downward to drive the locking strip to press the silicon steel sheet, thereby fixing the silicon steel sheet.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows: the tension device moves left and right, the sliding block drives the limit block to move left and right along the first linear guide through the tension sensor, the limit block drives the spring shaft to move, the spring shaft compresses or releases the spring, the spring pushes the spring cover to move, the spring cover drives the second silicon steel sheet fixing device to move, the spring can make the tension stable, and at the same time the tension device applies different tensions to the silicon steel sheet, the magnetic permeability meter measures the loss characteristics of the silicon steel sheet under different stress conditions, which is very important for the design and operation efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0014] Figure 1 A top view of a device for detecting the performance of a silicon steel sheet under stress conditions proposed by the present invention;

[0015] Figure 2 This is a front view of a device for detecting the performance of a silicon steel sheet under stress conditions proposed by the present invention;

[0016] Figure 3 This is a schematic structural diagram of the second silicon steel sheet fixing device and the tensioning device proposed in the present invention;

[0017] Figure 4 It is a NN cross-sectional view of the present invention.

[0018] In the accompanying drawings: 1. support table, 2. first silicon steel sheet fixing device, 3. magnetic permeometer, 4. second silicon steel sheet fixing device, 5. tension device, 6. motor, 7. reducer, 8. ball screw, 9. elastic buffer mechanism, 10. screw mounting seat, 11. sliding block, 12. tension sensor, 13. first linear guide, 14. limit block, 15. spring cover, 16. spring shaft, 17. spring, 18. second linear guide, 19. mounting seat, 20. support plate, 21. threaded rod, 22. threaded part, 23. locking strip, 24. locking handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] like Figure 1-Figure 4As shown, a device for detecting the performance of a silicon steel sheet under stress conditions comprises a support table 1 for supporting and fixing, wherein a first silicon steel sheet fixing device 2, a permeameter 3, a second silicon steel sheet fixing device 4 and a tension device 5 are installed on the upper wall of the support table 1, wherein the permeameter 3 is arranged between the first silicon steel sheet fixing device 2 and the second silicon steel sheet fixing device 4, and is used to measure the iron loss and magnetic induction of the silicon steel sheet, wherein the first silicon steel sheet fixing device 2 and the second silicon steel sheet fixing device 4 clamp and fix the two ends of the silicon steel sheet respectively, and the tension device 5 is connected to the side wall of the second silicon steel sheet fixing device 4.

[0022] The tension device 5 includes a motor 6, a reducer 7, a ball screw 8 and an elastic buffer mechanism 9, the motor 6 and the reducer 7 are both arranged on the upper wall of the support table 1, the output end of the motor 6 is connected to the reducer 7, a screw mounting seat 10 is also installed on the upper wall of the support table 1, the ball screw 8 is movably arranged on the screw mounting seat 10, one end of the ball screw 8 is connected to the reducer 7, a sliding block 11 is movably installed on the ball screw 8, a tension sensor 12 is connected to the upper wall of the sliding block 11, the elastic buffer mechanism 9 is movably arranged on the upper wall of the support table 1, one end of the elastic buffer mechanism 9 is connected to the tension sensor 12, and the other end is connected to the side wall of the second silicon steel sheet fixing device 4, a first linear guide rail 13 is installed on the upper wall of the support table 1 close to the tension device 5, and the lower end of the sliding block 11 is movably connected to the first linear guide rail 13;

[0023] It should be noted that the motor 6 and the reducer 7 drive the ball screw 8 to rotate, and the ball screw 8 drives the sliding block 11 to move left and right on the first linear guide rail 13. When the tension sensor 12 reaches the set tension, it stops moving.

[0024] The elastic buffer mechanism 9 includes a limit block 14, a spring cover 15, a spring shaft 16 and a spring 17, wherein the spring cover 15 is arranged on the side wall of the second silicon steel sheet fixing device 4, the limit block 14 is movably connected to the first linear guide 13, one end of the spring shaft 16 is movably connected to the side wall of the second silicon steel sheet fixing device 4 in the spring cover 15, and the other end movably penetrates the side wall of the spring cover 15, one end of the limit block 14 is connected to the tension sensor 12, and the other end is connected to the spring shaft 16, the spring 17 is sleeved on the outside of the spring shaft 16, one end of the spring 17 is connected to the side wall of the spring cover 15, and the other end of the spring 17 is connected to one end of the spring shaft 16 arranged in the second silicon steel sheet fixing device 4;

[0025] It should be noted that when the tension device 5 moves left and right, the sliding block 11 drives the limit block 14 to move left and right along the first linear guide rail 13 through the tension sensor 12, the limit block 14 drives the spring shaft 16 to move, the spring shaft 16 compresses or releases the spring 17, the spring 17 pushes the spring cover 15 to move, the spring cover 15 drives the second silicon steel sheet fixing device 4 to move, and the spring 17 can make the tension stable.

[0026] A second linear guide rail 18 is also installed on the upper wall of the support table 1 , a mounting seat 19 is movably provided on the second linear guide rail 18 , and the second silicon steel sheet fixing device 4 is arranged on the mounting seat 19 .

[0027] The first silicon steel sheet fixing device 2 and the second silicon steel sheet fixing device 4 have the same structure, and only one group is introduced here. The second silicon steel sheet fixing device 4 includes a support plate 20. The support plate 20 on the second silicon steel sheet fixing device 4 is arranged on the upper wall of the mounting seat 19, and the support plate 20 on the first silicon steel sheet fixing device 2 is arranged on the upper wall of the support table 1. A threaded rod 21 is installed on the upper wall of the support plate 20, and a threaded member 22 is sleeved on the threaded rod 21. A locking strip 23 is installed on the bottom wall of the threaded member 22. The threaded rod 21 passes through the locking strip 23, and the silicon steel sheet to be inspected is placed between the locking strip 23 and the upper wall of the support plate 20.

[0028] In this embodiment, a locking handle 24 is installed at the upper end of the threaded member 22. When the silicon steel sheet needs to be fixed, the locking handle 24 is manually rotated, and the locking handle 24 drives the threaded member 22 downward along the threaded rod 21. The threaded member 22 moves downward to drive the locking strip 23 to press the silicon steel sheet, so that the silicon steel sheet is fixed.

[0029] The specific usage is as follows:

[0030] The silicon steel sheet passes through the magnetic permeability machine, and its two ends are clamped and fixed by the first silicon steel sheet fixing device 2 and the second silicon steel sheet fixing device 4. The magnetic permeability meter 3 is used to measure the iron loss and magnetic induction of the silicon steel sheet. The two ends of the silicon steel sheet are fixed, and the locking handle 24 on the first silicon steel sheet fixing device 2 and the locking handle 24 on the second silicon steel sheet fixing device 4 are manually rotated respectively. The locking handle 24 drives the threaded member 22 downward along the threaded rod 21, and the threaded member 22 moves downward to drive the locking strip 23 to press the silicon steel sheet to fix the silicon steel sheet. The motor 6 and the reducer 7 drive the ball screw 8 to rotate, and the ball screw 8 drives the sliding block 11 on the first linear guide rail 13 It moves left and right. When the tension sensor 12 reaches the set tension, it stops moving. When the tension device 5 moves left and right, the sliding block 11 drives the limit block 14 to move left and right along the first linear guide rail 13 through the tension sensor 12. The limit block 14 drives the spring shaft 16 to move. The spring shaft 16 compresses or releases the spring 17. The spring 17 pushes the spring cover 15 to move. The spring cover 15 drives the second silicon steel sheet fixing device 4 to move. The spring 17 can make the tension stable, and then the permeameter 3 measures the iron loss and magnetic induction of the silicon steel sheet. After the tension device 5 applies different tensions, the permeameter 3 performs detection to detect the state under different tensions.

[0031] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A device for detecting the performance of silicon steel sheets under stress conditions, characterized in that: It comprises a support table for supporting and fixing, wherein a first silicon steel sheet fixing device, a permeameter, a second silicon steel sheet fixing device and a tension device are installed on the upper wall of the support table, wherein the permeameter is arranged between the first silicon steel sheet fixing device and the second silicon steel sheet fixing device, and the tension device is connected to the side wall of the second silicon steel sheet fixing device.

2. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 1, characterized in that: The pulling device includes a motor, a reducer, a ball screw and an elastic buffer mechanism, the motor and the reducer are both arranged on the upper wall of the support table, the output end of the motor is connected to the reducer, a screw mounting seat is also installed on the upper wall of the support table, the ball screw is movably arranged on the screw mounting seat, one end of the ball screw is connected to the reducer, a sliding block is movably installed on the ball screw, a tension sensor is connected to the upper wall of the sliding block, the elastic buffer mechanism is movably arranged on the upper wall of the support table, one end of the elastic buffer mechanism is connected to the tension sensor, and the other end is connected to the side wall of the second silicon steel sheet fixing device.

3. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 2, characterized in that: A first linear guide rail is installed on the upper wall of the support table close to the tension device, and the lower end of the sliding block is movably connected to the first linear guide rail.

4. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 3, characterized in that: The elastic buffer mechanism includes a limit block, a spring cover, a spring shaft and a spring. The spring cover is arranged on the side wall of the second silicon steel sheet fixing device. The limit block is movably clamped on the first linear guide rail. One end of the spring shaft is movably clamped on the side wall of the second silicon steel sheet fixing device in the spring cover, and the other end movably penetrates the side wall of the spring cover. One end of the limit block is connected to the tension sensor, and the other end is connected to the spring shaft. The spring is sleeved on the outside of the spring shaft, one end of the spring is connected to the side wall of the spring cover, and the other end of the spring is connected to one end of the spring shaft arranged in the second silicon steel sheet fixing device.

5. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 1, characterized in that: The upper wall of the support table is also equipped with a second linear guide rail, a mounting seat is movably provided on the second linear guide rail, and the second silicon steel sheet fixing device is arranged on the mounting seat.

6. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 5, characterized in that: The first silicon steel sheet fixing device and the second silicon steel sheet fixing device have the same structure, the second silicon steel sheet fixing device includes a support plate, the support plate on the second silicon steel sheet fixing device is arranged on the upper wall of the mounting seat, the support plate on the first silicon steel sheet fixing device is arranged on the upper wall of the support table, a threaded rod is installed on the upper wall of the support plate, a threaded part is sleeved on the threaded rod, a locking strip is installed on the bottom wall of the threaded part, the threaded rod passes through the locking strip, and the silicon steel sheet to be inspected is placed between the locking strip and the upper wall of the support plate.

7. The device for detecting the performance of silicon steel sheets under stress conditions according to claim 6, characterized in that: A locking handle is installed on the upper end of the threaded member.

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