A hardware experiment platform and a motor teaching experiment system

Abstract

The utility model relates to experimental teaching platform technical field provides a kind of hardware experiment platform, including experiment table and wall hanging;The machine control device for debugging motor is installed on the experiment table, the machine control device includes machine control claw, at least two insulation parts are slidably assembled on the machine control claw, the bottom of the experiment table is equipped with trundle, the limiting foot that can be lifted relative to the experiment table is equipped on the trundle;The wall hanging is fixed on the experiment table, the wall hanging is fixed on the experiment table, the end surface of the wall hanging is equipped with touch screen, display and module frame, the other end surface of the wall hanging is equipped with multiple line buckles, the wire hole is passed through and is equipped in the wall hanging, the wire hole side is equipped with socket;The utility model solves the problem that the wiring of existing experiment platform is messy and deviates in use, and has the advantages of compact structure, easy installation and low manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of experimental teaching platform technology, specifically to a hardware experimental platform and an electric motor teaching experimental system. Background Technology

[0002] Electrical motors and control technology is a compulsory fundamental course for vocational college electrical engineering majors. The control circuits and mechanical characteristics of three-phase asynchronous motors are the key points and challenges in teaching. However, due to limitations in laboratory hardware, traditional teaching methods are not conducive to students' understanding and mastery of abstract concepts. Existing experimental teaching platforms often connect various hardware instruments for ease of operation, but in practice, the excessive and haphazardly arranged cables are not only unsightly but also result in low space utilization. Furthermore, the lack of limit switches on these platforms often leads to partial or even complete displacement during use, affecting the experimental process and causing significant inconvenience. Utility Model Content

[0003] Therefore, in order to solve the problems of messy wiring and misalignment during use in existing experimental platforms, this utility model provides a hardware experimental platform and an electric motor teaching experimental system, the specific technical solution of which is as follows:

[0004] A hardware experimental platform includes an experimental platform and a wall mount. The experimental platform is equipped with a mechanical control device for debugging an electric motor. The mechanical control device includes a mechanical control claw, on which at least two insulating parts are slidably mounted. The bottom of the experimental platform is provided with casters, each with a limiting foot that can be raised and lowered relative to the experimental platform. The wall mount is fixed to the experimental platform. One end of the wall mount is equipped with a touch screen, a display, and a module rack. The other end of the wall mount is provided with multiple cable ties. A through-hole is provided in the wall mount, and a socket is provided on one side of the through-hole.

[0005] The aforementioned hardware experimental platform, by incorporating a mechanical control device, facilitates contact and adjustment of the motor during teaching experiments, effectively avoiding potential hazards caused by direct contact with a running motor. Limit feet, which reciprocate to the ground, restrict the platform's movement and position when needed, ensuring stability during experiments. A touchscreen and display facilitate the control and display of test content and results. Cable clips secure wires, preventing insulation damage from shaking or friction, extending their lifespan, and allowing them to be concealed at the edge or back of the platform, maintaining neatness and minimizing interference with other equipment.

[0006] Furthermore, the experimental platform includes a fixed frame, a mounting structure, and four mounting corner brackets. The fixed frame is provided with the mounting structure, which includes a first disassembly plate and a second disassembly plate that are slidably connected to the top of the fixed frame. The four mounting corner brackets are respectively threaded to the corner ends of the bottom of the fixed frame, and the casters are detachably mounted on the mounting corner brackets.

[0007] Furthermore, handles are installed on both the first and second disassembly plates.

[0008] Furthermore, the first disassembly plate is provided with a first positioning seat and a storage box, and the second disassembly plate is provided with a second positioning seat. The first positioning seat and the second positioning seat are arranged facing each other and cooperate to form a positioning space for the motor to be placed when it is not in use.

[0009] Furthermore, the machine control device also includes a debugging base and an adjustment assembly. The debugging base is fixed on the first disassembly plate and is used to place the motor. The adjustment assembly includes a first adjustment component, a second adjustment component, and a lifting component. The first adjustment component is connected to the debugging base. The top of the first adjustment component is provided with a first guide rail. The second adjustment component is slidably mounted on the first guide rail. The top of the second adjustment component is provided with a second guide rail. One end of the lifting component is threadedly connected to a slider that is slidably mounted on the second guide rail. The other end of the lifting component is slidably connected to the machine control claw.

[0010] Furthermore, the machine-controlled claw includes a lifting plug, a connecting block, a rotary motor, and a contact head. The lifting plug is slidably inserted into the lifting component. One end of the connecting block is threadedly fixed to the lifting plug. The rotary motor is mounted on the other end of the connecting block. The output end of the rotary motor is connected to the contact head for transmission. The insulating part is slidably assembled on the contact head. Each insulating part is provided with anti-slip texture.

[0011] Furthermore, the caster includes a movable wheel and a mounting base detachably mounted on the mounting bracket. The movable wheel is located on one side of the mounting base, and a lifting rod is slidably inserted into the other side of the mounting base. The bottom of the lifting rod is fitted with the limiting foot.

[0012] An electric motor teaching experiment system includes a hardware experiment platform, host computer software, a PLC module, a measurement module, a contactor assembly, a power supply module, and a drive motor. The PLC module, the measurement module, the contactor assembly, the power supply module, and the drive motor are respectively mounted on the module frame. The measurement module is used to test the parameters of the electric motor, the contactor assembly is used to control the start and stop states of the electric motor, and the drive motor is used to simulate the dynamic load conditions in the electric motor test.

[0013] Furthermore, the PLC module includes a serial communication module and a PLC control module connected to the serial communication module. One end of the serial communication module is connected to the host computer software, and the other end of the serial communication module is connected to the measurement module. A data acquisition card is installed inside the serial communication module, and the PLC control module is connected to the contactor assembly.

[0014] Furthermore, the measurement module includes a dynamic torque measurement module, a three-phase power measurement module, an infrared temperature measurement module, and a vibration acceleration sensor. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of the hardware experimental platform described in one embodiment of this utility model;

[0016] Figure 2 This is a second schematic diagram of the hardware experimental platform according to an embodiment of the present invention;

[0017] Figure 3 This is the third schematic diagram of the hardware experimental platform described in one embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the machine control device of the hardware experimental platform according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the electric motor teaching experiment system according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Experimental table; 11. Handle; 12. First positioning seat; 13. Storage box; 14. Second positioning seat; 2. Wall mount; 21. Touch screen; 22. Monitor; 23. Cable tie; 24. Wire hole; 3. Machine control device; 31. Machine control claw; 311. Insulation part; 312. Lifting plug; 313. Connecting block; 314. Rotary motor; 315. Contact head; 32. Debugging base; 33. Adjustment component; 331. First adjustment component; 332. Second adjustment component; 333. Lifting component; 4. Casters; 41. Limit foot; 42. Moving wheel; 5. PLC module frame; 6. Contact module frame; 7. Power module frame; 8. Drive module frame; 9. Measurement module frame; 10. Socket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0026] like Figures 1-4 As shown, a hardware experimental platform in one embodiment of this utility model includes an experimental platform 1 and a wall mount 2. The experimental platform 1 is equipped with a machine control device 3 for debugging a motor. The machine control device 3 includes a machine control claw 31, and at least two contact insulating parts 311 are slidably mounted on the machine control claw 31. The bottom of the experimental platform 1 is provided with casters 4, and the casters 4 are provided with limit feet 41 that can be raised and lowered relative to the experimental platform 1. The wall mount 2 is fixed on the experimental platform 1. A touch screen 21, a display 22 and a module rack are installed on one end of the wall mount 2. Multiple wire harnesses 23 are provided on the other end of the wall mount 2. A wire hole 24 is provided through the wall mount 2, and a socket 10 is provided on one side of the wire hole 24.

[0027] The aforementioned hardware experimental platform, by incorporating a mechanical control device 3, facilitates contact and adjustment of the motor during teaching experiments, effectively preventing potential hazards caused by direct contact with a running motor. The presence of a limit foot 41, which allows for reciprocating contact with the ground, restricts the movement or position of the experimental platform 1 when it needs to be fixed, ensuring stability during teaching experiments. The inclusion of a touchscreen 21 and a display 22 facilitates the control and display of test content and results. The wire harness 23 secures the wires, preventing insulation damage due to shaking or friction, extending their lifespan. It also allows the wires to be concealed at the edge or back of the experimental platform 1, maintaining neatness and minimizing interference with other equipment.

[0028] Specifically, the module rack includes a PLC module rack 5, a contact module rack 6, a power supply module rack 7, a drive module rack 8, and a measurement module rack 9.

[0029] In one embodiment, the experimental platform 1 includes a fixed frame, a mounting structure, and four mounting brackets. The fixed frame is provided with the mounting structure, which includes a first disassembly plate and a second disassembly plate that are slidably connected to the top of the fixed frame. The four mounting brackets are threadedly fixed to the corner ends of the bottom of the fixed frame, and casters 4 are detachably mounted on the mounting brackets. This facilitates the disassembly and assembly of the experimental platform 1.

[0030] like Figure 3 As shown, in one embodiment, handles 11 are installed on both the first and second disassembly plates.

[0031] like Figure 2 As shown, in one embodiment, the first disassembly plate is provided with a first positioning seat 12 and a storage box 13, and the second disassembly plate is provided with a second positioning seat 14. The first positioning seat 12 and the second positioning seat 14 are arranged facing each other and cooperate to form a positioning space for the motor to be placed when it is not in use. By providing the storage box 13, the cables can be centrally stored, which can effectively reduce the messy stacking of cables on the desktop or in the space, and further optimize the tabletop space of the experimental table 1.

[0032] like Figure 1 , Figure 2 and Figure 4As shown, in one embodiment, the machine control device 3 further includes a debugging base 32 and an adjustment assembly 33. The debugging base 32 is fixed to the first disassembly plate and is used to place the motor. The adjustment assembly 33 includes a first adjustment member 331, a second adjustment member 332, and a lifting member 333. The first adjustment member 331 is connected to the debugging base 32, and a first guide rail is provided on the top of the first adjustment member 331. The second adjustment member 332 is slidably mounted on the first guide rail, and a second guide rail is provided on the top of the second adjustment member 332. A slider that is slidably mounted on the second guide rail is threaded to one end of the lifting member 333, and the other end of the lifting member 333 is slidably connected to the machine control claw 31. Automated program control is adopted to avoid human operation errors, resulting in higher contact accuracy and repeatability, and maintaining stable performance even after long-term use.

[0033] Specifically, both the first and second guide rails are set horizontally and are perpendicular to each other.

[0034] Specifically, the lifting component 333 is arranged in a vertical direction.

[0035] like Figure 2 and Figure 4 As shown, in one embodiment, the mechanical gripper 31 includes a lifting block 312, a connecting block 313, a rotary motor 314, and a contact head 315. The lifting block 312 is slidably inserted into the lifting member 333. One end of the connecting block 313 is threadedly fixed to the lifting block 312. The rotary motor 314 is mounted on the other end of the connecting block 313. The output end of the rotary motor 314 is connected to the contact head 315. The insulating part 311 of the contact portion is slidably mounted on the contact head 315, and each insulating part 311 of the contact portion is provided with anti-slip texture. By providing the rotary motor 314, the rotary motor 314 drives the contact head 315 to rotate, thereby adjusting the contact position between the insulating part 311 and the motor, improving the stability during contact or gripping operations.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the caster 4 includes a movable wheel 42 and a mounting base detachably mounted on the mounting bracket. The movable wheel 42 is disposed on one side of the mounting base, and a lifting rod is slidably inserted into the other side of the mounting base. A limiting foot 41 is sleeved on the bottom of the lifting rod.

[0037] like Figure 1As shown, an electric motor teaching experiment system includes a hardware experiment platform, host computer software, a PLC module, a measurement module, a contactor assembly, a power supply module, and a drive motor. The PLC module is installed on the PLC module frame 5, the measurement module is installed on the measurement module frame 9 and is used to test the motor parameters, the contactor assembly is installed on the contact module frame 6 and is used to control the start and stop states of the motor, the power supply module is installed on the power supply module frame 7, and the drive motor is installed on the drive module frame 8 and is used to simulate the dynamic load conditions in the motor test.

[0038] Furthermore, the host computer software adopts LabVIEW. The development platform uses LabVIEW 2022, which can realize direct starting of three-phase asynchronous motors in forward / reverse directions, star-delta reduced voltage starting, and reverse power supply braking experiments. It can monitor the speed, torque, and output power of the motor under different load conditions, and realize no-load, load, and stall tests of the motor. By measuring the active power of the motor, motor efficiency experiments can be realized. Motor temperature rise experiments can be performed. It can monitor the vibration signal of the motor under different operating conditions and display the time domain and frequency domain waveforms.

[0039] Specifically, the power module is a programmable power supply. A programmable power supply is a power device controlled by a microcomputer, which uses digital waveform synthesis technology to achieve precise regulation of voltage and current, and is mainly used in electronic testing, industrial calibration and other fields.

[0040] Specifically, the drive unit is a magnetic powder load cell. It is mainly used to simulate dynamic load conditions in motor testing, and torque control is achieved through the magnetic force transmission of the magnetic powder medium. It is suitable for scenarios requiring constant load or variable load testing.

[0041] Preferably, the programmable power supply is a Keruiyuan KA3005P; the magnetic powder load cell is a Bengbu Jinnuo JN-JZ-5.

[0042] In one embodiment, the PLC module includes a serial communication module and a PLC control module connected to the serial communication module. One end of the serial communication module is connected to the host computer software, and the other end of the serial communication module is connected to the measurement module. A data acquisition card is installed inside the serial communication module, and the PLC control module is connected to the contactor assembly.

[0043] Preferably, the PLC control module is a Siemens S7-200SMART ST20; the data acquisition card is an NI USB-6002.

[0044] In one embodiment, the measurement module includes a dynamic torque measurement module, a three-phase electrical quantity measurement module, an infrared temperature measurement module, and a vibration acceleration sensor.

[0045] Specifically, the host computer software communicates with the PLC module, dynamic torque measurement module, and infrared temperature measurement module using Modbus RTU; and communicates with the three-phase power measurement module and power supply module using VISA function communication.

[0046] Preferably, the dynamic torque measurement module uses the Bengbu Jinno JN-DN2 sensor to measure motor speed, torque, and output power.

[0047] Preferably, the three-phase power measurement module is Hangzhou Yuanfang PF9830; the infrared temperature measurement module is Huahanwei T10S-B-HW; and the vibration acceleration sensor is Shanghai Chengke CT1005L.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A hardware experimental platform, characterized in that, include: An experimental platform is provided, on which a mechanical control device for debugging an electric motor is installed. The mechanical control device includes a mechanical control claw, on which at least two insulating parts are slidably mounted. The bottom of the experimental platform is provided with casters, and the casters are provided with limit feet that can be raised and lowered relative to the experimental platform. The wall mount is fixed to the experimental table. A touch screen, a display and a module rack are installed on one end of the wall mount. Multiple cable tie buckles are provided on the other end of the wall mount. A cable hole is provided through the wall mount, and a socket is provided on one side of the cable hole.

2. The hardware experimental platform according to claim 1, characterized in that, The experimental platform includes a fixed frame, a mounting structure, and four mounting corner brackets. The fixed frame is equipped with the mounting structure, which includes a first disassembly plate and a second disassembly plate that are slidably connected to the top of the fixed frame. The four mounting corner brackets are threadedly fixed to the corner ends of the bottom of the fixed frame, and the casters are detachably mounted on the mounting corner brackets.

3. The hardware experimental platform according to claim 2, characterized in that, Both the first and second disassembly plates are equipped with handles.

4. The hardware experimental platform according to claim 2, characterized in that, The first disassembly plate is provided with a first positioning seat and a storage box, and the second disassembly plate is provided with a second positioning seat. The first positioning seat and the second positioning seat are arranged facing each other and cooperate to form a positioning space for the motor to be placed when it is not in use.

5. The hardware experimental platform according to claim 2, characterized in that, The machine control device further includes a debugging base and an adjustment assembly. The debugging base is fixed on the first disassembly plate and is used to place the motor. The adjustment assembly includes a first adjustment component, a second adjustment component, and a lifting component. The first adjustment component is connected to the debugging base. The top of the first adjustment component is provided with a first guide rail. The second adjustment component is slidably mounted on the first guide rail. The top of the second adjustment component is provided with a second guide rail. One end of the lifting component is threadedly connected to a slider that is slidably mounted on the second guide rail. The other end of the lifting component is slidably connected to the machine control claw.

6. The hardware experimental platform according to claim 5, characterized in that, The machine-controlled claw includes a lifting block, a connecting block, a rotary motor, and a contact head. The lifting block is slidably inserted into the lifting component. One end of the connecting block is threadedly fixed to the lifting block. The rotary motor is installed on the other end of the connecting block. The output end of the rotary motor is connected to the contact head. The insulating part is slidably assembled on the contact head. Each insulating part is provided with anti-slip texture.

7. The hardware experimental platform according to claim 2, characterized in that, The caster includes a movable wheel and a mounting base detachably mounted on the mounting bracket. The movable wheel is located on one side of the mounting base, and a lifting rod is slidably inserted into the other side of the mounting base. The bottom of the lifting rod is fitted with the limiting foot.

8. A teaching experiment system for electric motors, characterized in that, The device includes a hardware experimental platform as described in any one of claims 1-7, host computer software, a PLC module, a measurement module, a contactor assembly, a power supply module, and a drive motor. The PLC module, the measurement module, the contactor assembly, the power supply module, and the drive motor are respectively mounted on the module frame. The measurement module is used to test motor parameters, the contactor assembly is used to control the start and stop states of the motor, and the drive motor is used to simulate the dynamic load conditions in motor testing.

9. The electric motor teaching experiment system according to claim 8, characterized in that, The PLC module includes a serial communication module and a PLC control module connected to the serial communication module. One end of the serial communication module is connected to the host computer software, and the other end of the serial communication module is connected to the measurement module. A data acquisition card is installed in the serial communication module, and the PLC control module is connected to the contactor assembly.

10. The electric motor teaching experiment system according to claim 8, characterized in that, The measurement module includes a dynamic torque measurement module, a three-phase power measurement module, an infrared temperature measurement module, and a vibration acceleration sensor.

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