CN213987979U

CN213987979U - Teaching demonstration instrument for stepping motor

Info

Publication number: CN213987979U
Application number: CN202023136818.6U
Authority: CN
Inventors: 周灵彬; 韩华强; 唐扬
Original assignee: Shaoxing Vocational and Technical College
Current assignee: Shaoxing Vocational and Technical College
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-17
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a demonstration instrument for teaching a stepping motor, which comprises a shell, wherein one side of the shell is provided with a power supply port, a stepping motor is arranged in the shell, a table board is arranged above the shell, a display screen, a key unit and a swinging pointer vertically connected with an output shaft of the stepping motor are arranged above the table board, a speed measuring code disc is arranged on an output shaft of the stepping motor, a control circuit board which is electrically connected with the display screen and the key unit is arranged in the shell, a photoelectric correlation sensor module connected with the speed measuring code disc is arranged on the side edge of the speed measuring code disc, a photoelectric correlation sensor on the photoelectric correlation sensor module is arranged opposite to the swinging pointer, the photoelectric correlation sensor module is electrically connected with the control circuit board, the stepping motor is fixed at the bottom of the shell through the positioning panel, and a 360-degree angle scale capable of observing the rotating angle of the stepping motor is arranged on the table panel. The structure can demonstrate the rotating speed condition of the stepping motor through a real object, and is convenient for visual teaching.

Description

Teaching demonstration instrument for stepping motor

Technical Field

The utility model relates to a teaching aid's technical field, especially a step motor demonstration appearance of demonstrating.

Background

The step motor which is widely applied at present is introduced in detail in courses in university teaching, and the working principle is as follows: and the three excitation windings of the stator are alternately introduced with direct current, so that a pulse electromagnetic field generated by the stator acts on the magnetic rotor core to rotate the rotor. In the actual teaching process, the working principle of the stepping motor is abstract, the changing magnetic field is invisible, the changing magnetic field is controlled, the conventional teaching means mainly depends on the theoretical knowledge of books, the teaching difficulty can be increased in the teaching process, and the understanding of students can also become difficult.

Therefore, it is very important to design a motor teaching demonstration device capable of intuitively stepping.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can regard as the directly perceived applied step motor demonstration appearance of teaching in order to solve the not enough of above-mentioned prior art.

In order to achieve the purpose, the teaching demonstration instrument for the stepping motor comprises a shell, wherein one side of the shell is provided with a power supply port, a stepping motor is arranged in the shell, a table board is arranged above the shell, a display screen, a key unit and a swinging pointer vertically connected with an output shaft of the stepping motor are arranged above the table board, a speed measuring code disc is arranged on an output shaft of the stepping motor, a control circuit board which is electrically connected with the display screen and the key unit is arranged in the shell, a photoelectric correlation sensor module connected with the speed measuring code disc is arranged on the side edge of the speed measuring code disc, a photoelectric correlation sensor on the photoelectric correlation sensor module is arranged opposite to the swinging pointer, the photoelectric correlation sensor module is electrically connected with the control circuit board, the stepping motor is fixed at the bottom of the shell through the positioning panel, and a 360-degree angle scale capable of observing the rotating angle of the stepping motor is arranged on the table panel.

Preferably, for convenience of disassembly, an output shaft of the stepping motor is connected with the swing pointer through the alligator pliers.

Preferably, the shell comprises a left acrylic plate, a right acrylic plate, a front acrylic plate, a rear acrylic plate, a table board and a bottom acrylic plate, and more than one phase sequence indicator lamp for reminding the phase sequence of the stepping motor is arranged on the table board.

Preferably, in order to facilitate power supply and realize multi-mode power supply, an external power supply port and a Type-c power supply port are arranged on the side of the control circuit board.

In order to facilitate disassembly, the photoelectric correlation sensor module is fixed on the rear acrylic plate through a connecting plate.

In order to facilitate the installation, the connecting plate and the positioning panel are integrally formed.

The utility model discloses a step motor demonstration appearance of demonstrating that obtains, following technological effect:

1) the abstract control principle of the existing stepping motor is visually embodied in a real object and used as a teaching tool, so that the teaching is more vivid and easier to understand by students; the teaching quality can be effectively improved.

2) The control of the stepping motor is simplified, and the use is more convenient.

Drawings

Fig. 1 is a schematic structural diagram of a teaching demonstration instrument for a stepping motor according to embodiment 1 when deleting a 360 ° angle scale;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of a connection structure of a stepping motor, a photoelectric correlation sensor module, a speed-measuring code wheel, a swing pointer, a positioning panel and a connection plate in embodiment 1;

FIG. 4 is a sectional view of the internal structure of FIG. 1;

FIG. 5 is a plan view showing the structure of a teaching demonstration instrument for a stepping motor according to embodiment 1;

FIG. 6 is a plan view showing a structure of a teaching demonstration instrument for a stepping motor according to embodiment 2;

fig. 7 is a bottom view of the coupling structure of the alligator clip and the swing hands.

In the figure: the device comprises a shell 1, a stepping motor 2, a table panel 3, a display screen 4, a key unit 5, a swing pointer 6, an extension column 6-1, a speed measuring code disc 7, a control circuit board 8, a photoelectric correlation sensor module 9, a photoelectric correlation sensor 9-1, crocodile pliers 10, a positioning panel 11, a left acrylic plate 12, a right acrylic plate 13, a rear acrylic plate 14, a bottom acrylic plate 15, a phase sequence indicator lamp 16, an external power supply port 17, a Type-c power supply port 18, a connecting plate 19, a 360-degree angle scale 20 and a front acrylic plate 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 5, the demonstration instrument for teaching a stepping motor provided in this embodiment includes a housing 1, a power supply port is disposed on one side of the housing 1, a stepping motor 2 is disposed in the housing 1, a desk panel 3 is disposed above the housing 1, a display screen 4, a key unit 5 and a swing pointer 6 vertically connected to an output shaft of the stepping motor 2 are disposed above the desk panel 3, a speed measurement code disc 7 is disposed on the output shaft of the stepping motor 2, a control circuit board 8 electrically connected to the display screen 4 and the key unit 5 is disposed in the housing 1, a photo-electric correlation sensor module 9 connected to the speed measurement code disc 7 is disposed on a side of the speed measurement code disc 7, a photo-electric correlation sensor 9-1 on the photo-electric correlation sensor module 9 is disposed opposite to the swing pointer 6, the photo-electric correlation sensor module 9 is electrically connected to the control circuit board 8, step motor 2 passes through locating panel 11 to be fixed in 1 bottom of casing, be provided with on deck plate 3 and can observe 360 angle scales 20 that step motor rotated the angle, in this embodiment deck plate 3 can also adopt transparent material to make, conveniently look over the inside motor and rotate the condition.

Preferably, the housing 1 includes a left side acrylic plate 12, a right side acrylic plate 13, a front side acrylic plate 21, a rear side acrylic plate 14, a table panel 3 and a bottom acrylic plate 15, the table panel 3 is provided with more than one phase sequence indicator lamps 16 for reminding the phase sequence of the stepping motor 2, and the phase sequence situation of the stepping motor 2 during operation is displayed in real time by the phase sequence indicator lamps 16, so that the teaching is more convenient.

Preferably, in order to facilitate power supply and realize multi-mode power supply, an external power supply port 17 and a Type-c power supply port 18 are provided as two power supply ports on a side of the control circuit board 8, and the external power supply port 17 and the Type-c power supply port 18 are exposed outside the housing 1.

For the convenience of disassembly, the photoelectric correlation sensor module 9 is fixed on the rear acrylic plate 14 through a connecting plate 19.

In order to make the installation more convenient, the connecting plate 19 and the positioning panel 11 are integrally formed, so that the installation steps of the whole structure are simpler and more convenient.

In the structure, in order to better demonstrate and control the stepping motor, a rotating shaft of the stepping motor is connected with a speed measuring coded disc and a swing pointer 6, a speed measuring module, namely a photoelectric correlation sensor module 9, is fixed on the side surface of the motor and forms a whole with the stepping motor, so that the understanding and more stable speed measurement can be realized as long as the motor rotates, the motor is sampled and then is sent to a control circuit board 8 through a filter circuit to be subjected to data processing and conversion, namely, the rotating speed value of the actual stepping motor is obtained, a key unit 5 is used as an input signal in man-machine interaction, the current function of a key is obtained through the capture, analysis and processing of the control circuit board 8, the proper pulse number for the stepping motor is determined through logic processing according to the current function, a phase sequence indicator lamp 16 of the stepping motor can indicate the working state of a coil of the stepping motor during the operation, the actual observation and demonstration are convenient, and the whole structure is operated, the external power supply port 17 is a DC power supply input port, the Type-C power supply port 18 is a Type-C socket, the power supply port adopts mainstream Type-C to supply low-power, and the voltage range provided with the external power supply port 17 is 5V-35V (maximum value) for demonstrating the high-power stepping motor, so that the structure can adapt to the demonstration of the low-power stepping motor and the demonstration process of the high-power stepping motor; the key unit 5 is used as key input for inputting and determining functions; the display screen 4 is used as a human-computer interaction interface of the stepping motor demonstration instrument, control data in the operation process are displayed, and the current angle and the step number of the motor, the power-on and power-off state, the rotating speed and the torque of each phase of coil can be displayed in real time; the 360 ° angle scale 20 is when the position pointed by the swing pointer 6 is the current position of the actual stepping motor rotor, and the above-mentioned 4 phase sequence indicator lights 16 are used to display the current state of the stepping motor winding that has lost power.

Therefore, the structure designed by the embodiment has the following technical effects:

Example 2:

as shown in fig. 6 and 7, the general structure of the teaching demonstration instrument for the stepping motor according to the present embodiment is the same as that of embodiment 1, except that, as a preferable mode, in order to facilitate disassembly, the output shaft of the stepping motor 2 is connected to the swing pointer 6 through the alligator pliers 10, when the teaching demonstration instrument is installed, the extending column 6-1 extending downward is arranged below the swing pointer 6, then the extending column 6-1 is clamped in the jaw of the alligator pliers 10 horizontally arranged above the positioning panel 11, then the lower surface of the alligator pliers 10 is connected to the output shaft of the stepping motor 2 to achieve installation, and meanwhile, in order to facilitate operation, the output shaft of the stepping motor 2 is connected below the rotating connection portion of the alligator pliers 10, and the swing pointer 6 is connected to the output shaft of the stepping motor 2 through the alligator pliers 10, thereby facilitating later disassembly.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides a step motor teaching demonstration appearance, includes casing (1), its characterized in that: one side of the shell (1) is provided with a power supply port, a stepping motor (2) is arranged in the shell (1), a table board (3) is arranged above the shell (1), a display screen (4), a key unit (5) and a swing pointer (6) vertically connected with an output shaft of the stepping motor (2) are arranged above the table board (3), a speed measuring coded disc (7) is arranged on the output shaft of the stepping motor (2), a control circuit board (8) electrically connected with the display screen (4) and the key unit (5) is arranged in the shell (1), a photoelectric correlation sensor module (9) connected with the speed measuring coded disc (7) is arranged on the side edge of the speed measuring coded disc (7), a photoelectric correlation sensor (9-1) on the photoelectric correlation sensor module (9) is arranged right opposite to the swing pointer (6), and the photoelectric correlation sensor module (9) is electrically connected with the control circuit board (8), step motor (2) are fixed in casing (1) bottom through location panel (11), be provided with 360 angle scales (20) that can observe step motor and turn over the angle on deck plate (3).

2. The stepper motor teaching demonstration apparatus of claim 1, wherein: an output shaft of the stepping motor (2) is connected with the swing pointer (6) through an alligator clamp (10).

3. The stepper motor teaching demonstration apparatus of claim 1, wherein: casing (1) include left side ya keli board (12), right side ya keli board (13), front side ya keli board (21), rear side ya keli board (14), deck plate (3) and bottom ya keli board (15), be provided with more than one on deck plate (3) and be used for carrying out phase sequence pilot lamp (16) that remind to the phase sequence of step motor (2).

4. The stepper motor teaching demonstration apparatus of claim 1, wherein: an external power supply port (17) and a Type-c power supply port (18) are arranged on the side edge of the control circuit board (8).

5. The stepper motor demonstration apparatus of claim 3, wherein: the photoelectric correlation sensor module (9) is fixed on the rear acrylic plate (14) through a connecting plate (19).

6. The stepper motor teaching demonstration apparatus of claim 5, wherein: the connecting plate (19) and the positioning panel (11) are integrally formed.