CN202956959U - Sine curve demonstration instrument - Google Patents
Sine curve demonstration instrument Download PDFInfo
- Publication number
- CN202956959U CN202956959U CN 201220630383 CN201220630383U CN202956959U CN 202956959 U CN202956959 U CN 202956959U CN 201220630383 CN201220630383 CN 201220630383 CN 201220630383 U CN201220630383 U CN 201220630383U CN 202956959 U CN202956959 U CN 202956959U
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- slide rail
- vertical slide
- sliding block
- longitudinal sliding
- demonstration platform
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Abstract
A sine curve demonstration instrument comprises a demonstration platform casing, a demonstration platform frame, an electronic display screen, a disc, a drawing pen, a transverse sliding block, a first longitudinal sliding block, a second longitudinal sliding block, a cross rod, a first longitudinal sliding rail, a second longitudinal sliding rail and a manual operating crank. A speed reducer, a stepping motor, a rotary shaft, an automatic magnetic clutch, a manual magnetic clutch, a first transmission belt, a second transmission belt and a rotary speed sensor are arranged in the demonstration platform frame. The stepping motor is fixedly connected to one side opposite to the speed reducer in the demonstration platform frame. The sine curve demonstration instrument is further provided with a singleboard computer and a driver, wherein the singleboard computer is respectively connected with the electronic display screen, the rotary speed sensor and the driver, and the driver is connected with the stepping motor. The sine curve demonstration instrument utilizes a rotary speed signal sent by the rotary speed sensor to simulate and draw a sine curve on the electronic display screen, achieves digitalized displaying and achieves sine curve drawing in an automatic state and a manual state respectively through the automatic magnetic clutch and the manual magnetic clutch.
Description
Technical field
The utility model relates to a kind of curve apparatus for demonstrating, is specifically related to a kind of sine curve demonstrator.
Background technology
Sine curve demonstrator is to understand for adolescent student a kind of demonstration instrument that sinusoidal curve graphic plotting principle designs.At present, existing structure is to adopt two bar vertical connections in length and breadth, and cross bar is than long end vertical ground fixed magnetic pen.Cross bar drives cross bar than short end by the crank on the disk rotated and does straight reciprocating motion along two parallel vertical poles, it is synthetic with uniform motion transversely by the circular motion projection campaign in the vertical by the uniform velocity, and is formed at the sinusoidal curve on optomagnetic plane.During the work of this instrument, magnetic pen " pictures " on the display plane of bottom surface goes out sinusoidal curve, selects the electromagnetic mode demonstration, and spectators can start swinging handle and draw sinusoidal curve.Its shortcoming is that the distance of the horizontal uniform motion of driven by motor is certain, at every turn, when drawing out a complete sinusoidal curve, stops motor, and makes motor reversal, and display panel is retracted into to initial position along original route; And the magnetic chart board will refresh once at every turn, now can draw again sinusoidal curve next time, be difficult to realize the drafting of variable period sinusoidal curve.
Summary of the invention
The problem existed for prior art, the utility model provides a kind of sine curve demonstrator, by automatic or manual, draws the sinusoidal curve that different cycles changes.
The technical solution of the utility model is:
A kind of sine curve demonstrator, comprise demonstration platform shell, demonstration platform framework, electronic display, disk, ruling pen, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail, second vertical slide rail and manual rocking handle;
Described demonstration platform jacket is outside the demonstration platform framework;
Described electronic display, disk, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail and second vertical slide rail are installed in demonstration platform upper surface of outer cover, and manually rocking handle is arranged on demonstration platform side wall of outer shell;
Disk, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail and second vertical slide rail are positioned at a side of electronic display;
Overlap the first longitudinal sliding block and the second longitudinal sliding block are arranged respectively on first vertical slide rail and second vertical slide rail;
The two ends of first vertical slide rail are fixed on demonstration platform upper surface of outer cover by vertical slide rail bearing, and second vertical slide rail is parallel to first vertical slide rail, and are fixed on demonstration platform upper surface of outer cover by vertical slide rail bearing;
On cross bar, cover has transverse slider, and the two ends of cross bar connect respectively the first longitudinal sliding block and the second longitudinal sliding block;
The second longitudinal sliding block connects ruling pen, and ruling pen is placed in the electronic display top;
Disk is between first vertical slide rail and second vertical slide rail, and transverse slider is connected with disc centre by crank;
Be provided with reductor, stepper motor, rotation axis, automatic magnetic clutch, manual electromagnetic clutch, the first driving-belt, the second driving-belt and speed probe in the demonstration platform framework;
Stepper motor is fixedly connected on a side relative with reductor in the demonstration platform framework;
The automatic magnetic clutch upper end is connected with disc centre by rotation axis, and the output shaft of stepper motor is connected with automatic magnetic clutch by the first driving-belt, and the rotation axis lower end connects speed probe;
Manually electromagnetic clutch is installed to the reductor below, and manually electromagnetic clutch is connected with rotation axis by the second driving-belt;
Described sine curve demonstrator also is provided with single card microcomputer and driver, and single card microcomputer is connected with electronic display, speed probe, driver respectively, and driver is connected with stepper motor.
The junction at described rotation axis and disk bottom center is fixed on the demonstration platform framework by the clutch shaft bearing seat, and the junction of rotation axis and automatic magnetic clutch upper end is fixed on the demonstration platform framework by the second bearing seat.
Described demonstration platform shell side is equipped with manual/auto conversion knob and start button;
Manual/auto conversion knob is connected with single card microcomputer, and this knob is connected with an end of contactor coil, the other end of contactor coil is connected with automatic magnetic clutch coil one end, the automatic magnetic clutch coil other end is connected with safety relay coil one end, and the safety relay coil other end is connected with speed probe; Manually electromagnetic clutch coil one end connects manual/auto conversion knob, and the other end connects speed probe; Start button one end connecting single board machine, the other end connects speed probe.
Beneficial effect:
The tach signal that utilizes speed probe to send, on electronic data display, sinusoidal curve is drawn in emulation, realizes that digitizing shows, by manual electromagnetic clutch and automatic magnetic clutch, realizes automatically and under manual mode drawing sinusoidal curve respectively.
The accompanying drawing explanation
Fig. 1 is the sinusoidal curve schematic diagram of the utility model embodiment;
Fig. 2 is the structural representation of the sine curve demonstrator of the utility model embodiment;
Fig. 3 is the mechanical driving part structural representation of the sine curve demonstrator of the utility model embodiment;
Fig. 4 is the electric control theory figure of the sine curve demonstrator of the utility model embodiment;
Wherein, 1-demonstration platform shell, the vertical slide rail of 2-first, 3-the first longitudinal sliding block, the 4-transverse slider, the 5-crank, the 6-disk, the 7-cross bar, 8-the second longitudinal sliding block, the vertical slide rail of 9-second, the 10-ruling pen, the 11-electronic display, the manual rocking handle of 12-, the 13-start button, the manual/auto conversion knob of 14-, 15-the first driving-belt, the 16-speed probe, the 17-automatic magnetic clutch, the 18-stepper motor, 19-the second bearing seat, the 20-rotation axis, 21-clutch shaft bearing seat, the manual electromagnetic clutch of 22-, 23-the second driving-belt, 24-demonstrates platform framework, the 25-reductor, the 26-rotating shaft, the 27-belt pulley, DZS1-automatic magnetic clutch coil, the manual electromagnetic clutch coil of DZS2-, JY-safety relay coil, ZS-automatic/hand conversion knob, the K-start button, the KM-contactor coil, the DPY-LED lattice block.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
The sine curve demonstrator of present embodiment as shown in Figure 2, comprises demonstration platform shell 1, demonstration platform framework 24, electronic display 11, disk 6, ruling pen 10, transverse slider 4, the first longitudinal sliding block 3, the second longitudinal sliding block 8, vertical slide rail 2, the second vertical slide rail 9 of cross bar 7, first and manual rocking handle 12;
The electronic display of present embodiment adopts the LED lattice block, and double-colored 5.0 dot matrix module dot spacings are 7.62mm, fluorescent tube encapsulation point array module, and module is of a size of 960 * 480mm, and physical dimension is 1110 * 520 * 100mm, and weight is 20kg;
Overlap the first longitudinal sliding block 3 and the second longitudinal sliding block 8 are arranged respectively on first vertical slide rail 2 and second vertical slide rail 9;
The two ends of first vertical slide rail 2 are fixed on demonstration platform shell 1 upper surface by vertical slide rail bearing, and second vertical slide rail 9 is parallel to first vertical slide rail 2, and are fixed on demonstration platform shell 1 upper surface by vertical slide rail bearing;
On cross bar 7, cover has transverse slider 4, and the two ends of cross bar 7 connect the first longitudinal sliding block 3 and the second longitudinal sliding block 8;
The second longitudinal sliding block 8 connects ruling pen 10, and ruling pen 10 is placed in electronic display 11 tops;
As shown in Figure 3, be provided with reductor 25, stepper motor 18, rotation axis 20, automatic magnetic clutch 17, manual electromagnetic clutch 22, the first driving-belt 15, the second driving-belt 23 and speed probe 16 in demonstration platform framework 24;
In present embodiment, reductor 25 adopts the T series helix cone tooth transmission case that model is T8-1.5:1-I-D-B3, and mounting hole is of a size of 200 * 130mm; Stepper motor 18 adopts the three-phase hybrid stepping motor that model is 110BYG350C, and driving voltage is AC220, and line current is 5.2A, maximum static torque is 18N.m, maximum No Load Start rotating speed is 210 rev/mins, and physical dimension is φ 110 * 220mm, and weight is 10.7kg; Automatic magnetic clutch 17 and manually electromagnetic clutch all to adopt model be the DLD2-2.5(III) electromagnetic clutch, rated moment is 25N.m, and rated power is 20W, and rated voltage is 24V, the work maximum speed is 3000rpm, and physical dimension is φ 112 * 75mm; Speed probe 16 adopts the absolute rotary encoder that model is E6CP-AG5C, and supply voltage is 12-24V, merogenesis
SeparateEnergy 256(8 bit), output code is the GRAY2 system, and sense of rotation is CW, and precision is below 1 ℃,
Stepper motor 18 is fixedly connected on demonstration platform framework 24 sidepieces, and automatic magnetic clutch 17 is arranged on the position corresponding with disk 6 in demonstration platform framework 24, and reductor 25 is arranged on the position that demonstration platform framework 24 is interior with manually rocking handle 12 is corresponding;
Automatic magnetic clutch 17 upper ends are connected with disk 6 centers by rotation axis 20, and the output shaft of stepper motor 18 is connected with automatic magnetic clutch 17 by the first driving-belt 15, and rotation axis 20 lower ends connect speed probe 16;
Manually electromagnetic clutch 22 is installed to reductor 25 belows, and manually electromagnetic clutch 22 is connected with rotation axis 20 by the second driving-belt 23;
As shown in Figure 4, sine curve demonstrator also is provided with single card microcomputer and driver, and single card microcomputer is connected with electronic display 11, speed probe 16, driver respectively, and driver is connected with stepper motor 18.
Rotation axis 20 is fixed on demonstration platform framework 24 by clutch shaft bearing seat 21 with the junction at disk 6 centers, and rotation axis 20 is fixed on demonstration platform framework 24 by the second bearing seat 19 with the junction of automatic magnetic clutch 17 upper ends.
Manual/auto conversion knob 14 is connected with single card microcomputer, be provided with contactor between automatic magnetic clutch 17 and manual/auto conversion knob 14, manual/auto conversion knob 14 is connected with an end of contactor coil, the other end of contactor coil is connected with automatic magnetic clutch coil one end, the automatic magnetic clutch coil other end is connected with safety relay coil one end, and the safety relay coil other end is connected with speed probe; Manually electromagnetic clutch coil one end connects manual/auto conversion knob 14, and the other end connects speed probe 16; Start button one end connecting single board machine, the other end connects speed probe 16.
The workflow of present embodiment is as follows:
At first, press start button K, switch on power, system is in power-up state, and safety relay coil JY switches on, and single card microcomputer, DPY-LED lattice block, speed probe and controller are in running order.
Secondly, by rotary manual/automatically change knob, carry out auto state/manual operation state conversion;
Electromagnetic clutch and belt pulley are integral types, and manually electromagnetic clutch connects the transmission of manual rocking handle-disk, and automatic magnetic clutch connects the transmission of stepper motor-disk.
If select rotation to the left to enter auto state (normally closed), the automatic magnetic clutch adhesive and manually electromagnetic clutch throw off, automatic magnetic clutch coil DZS1 and contactor coil KM energising, manually electromagnetic clutch coil DZS2 outage, manual control circuit is in off-state, by single card microcomputer control step motor, realize operation automatically, by stepper motor-driving-belt-automatic magnetic clutch-rotation axis, disc rotated, draw with different rotating speeds the sinusoidal curve that different cycles changes; If select rotation to the right to enter manual mode (often opening), manually electromagnetic clutch adhesive and automatic magnetic clutch is thrown off, manually electromagnetic clutch coil DZS2 energising, automatic magnetic clutch coil DZS1 outage, automatic control circuit is in off-state, by manual rocking handle operation operation, by reductor-manual electromagnetic clutch-the second driving-belt-rotation axis, disc rotated, draw with different rotating speeds the sinusoidal curve that different cycles changes.
Control by manual/auto conversion knob ZS position of rotation, realize automatically and the manually interlocking of two states control loop.
Then, under selected mode of operation, sine curve demonstrator is controlled the ruling pen motion, draws out sinusoidal curve, and in the electronical display screen display.
Single card microcomputer changes into digital signal by pulse signal, controls the electronic display screen displays sinusoidal curve, as same the ruling pen repeatedly moved in the vertical direction drawn out sinusoidal curve on electron plate.
Can change the reciprocating frequency of ruling pen by the rotating speed of regulating rotating shaft, also change corresponding sinusoidal wave period simultaneously, with cycle T=2 π/ω motion;
Draw sinusoidal principle as shown in Figure 1, the Movement Locus Equation of ruling pen is
, i.e. sinusoidal curve, wherein, A---amplitude, when object meets sinusoidal straight reciprocating motion as track, its value is stroke 1/2; (ω t+ φ)---phasing degree, φ---first phase, phase place during x=0, being reflected on coordinate system is moving left and right of image; ω---angular velocity, control sinusoidal period (completing 2 π corner required times).
Finally, the start button K that upsprings, cut off the electricity supply, and system, in off-position, plays the safeguard protection effect.
Claims (3)
1. a sine curve demonstrator, is characterized in that: comprise demonstration platform shell, demonstration platform framework, electronic display, disk, ruling pen, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail, second vertical slide rail and manual rocking handle;
Described demonstration platform jacket is outside the demonstration platform framework;
Described electronic display, disk, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail and second vertical slide rail are installed in demonstration platform upper surface of outer cover, and manually rocking handle is arranged on demonstration platform side wall of outer shell;
Disk, transverse slider, the first longitudinal sliding block, the second longitudinal sliding block, cross bar, first vertical slide rail and second vertical slide rail are positioned at a side of electronic display;
Overlap the first longitudinal sliding block and the second longitudinal sliding block are arranged respectively on first vertical slide rail and second vertical slide rail;
The two ends of first vertical slide rail are fixed on demonstration platform upper surface of outer cover by vertical slide rail bearing, and second vertical slide rail is parallel to first vertical slide rail, and are fixed on demonstration platform upper surface of outer cover by vertical slide rail bearing;
On cross bar, cover has transverse slider, and the two ends of cross bar connect respectively the first longitudinal sliding block and the second longitudinal sliding block;
The second longitudinal sliding block connects ruling pen, and ruling pen is placed in the electronic display top;
Disk is between first vertical slide rail and second vertical slide rail, and transverse slider is connected with disc centre by crank;
Be provided with reductor, stepper motor, rotation axis, automatic magnetic clutch, manual electromagnetic clutch, the first driving-belt, the second driving-belt and speed probe in the demonstration platform framework;
Stepper motor is fixedly connected on a side relative with reductor in the demonstration platform framework;
The automatic magnetic clutch upper end is connected with disc centre by rotation axis, and the output shaft of stepper motor is connected with automatic magnetic clutch by the first driving-belt, and the rotation axis lower end connects speed probe;
Manually electromagnetic clutch is installed to the reductor below, and manually electromagnetic clutch is connected with rotation axis by the second driving-belt;
Described sine curve demonstrator also is provided with single card microcomputer and driver, and single card microcomputer is connected with electronic display, speed probe, driver respectively, and driver is connected with stepper motor.
2. sine curve demonstrator according to claim 1, it is characterized in that: the junction at described rotation axis and disk bottom center is fixed on the demonstration platform framework by the clutch shaft bearing seat, and the junction of rotation axis and automatic magnetic clutch upper end is fixed on the demonstration platform framework by the second bearing seat.
3. sine curve demonstrator according to claim 1, it is characterized in that: described demonstration platform shell side is equipped with manual/auto conversion knob and start button;
Manual/auto conversion knob is connected with single card microcomputer, and this knob is connected with an end of contactor coil, the other end of contactor coil is connected with automatic magnetic clutch coil one end, the automatic magnetic clutch coil other end is connected with safety relay coil one end, and the safety relay coil other end is connected with speed probe; Manually electromagnetic clutch coil one end connects manual/auto conversion knob, and the other end connects speed probe; Start button one end connecting single board machine, the other end connects speed probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630383 CN202956959U (en) | 2012-11-26 | 2012-11-26 | Sine curve demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630383 CN202956959U (en) | 2012-11-26 | 2012-11-26 | Sine curve demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202956959U true CN202956959U (en) | 2013-05-29 |
Family
ID=48462519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220630383 Expired - Fee Related CN202956959U (en) | 2012-11-26 | 2012-11-26 | Sine curve demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202956959U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167126A (en) * | 2014-07-09 | 2014-11-26 | 孔震 | Sine function image generation demonstration device and demonstration method |
| CN104809939A (en) * | 2015-04-30 | 2015-07-29 | 陕西理工学院 | Trigonometric teaching aid |
| CN105303933A (en) * | 2015-11-25 | 2016-02-03 | 浙江大学城市学院 | Simple harmonic vibration curve plotting demonstration experimental instrument |
| CN106205315A (en) * | 2016-10-09 | 2016-12-07 | 陈冠伦 | A kind of experiment of electromagnetism comprehensive demonstration device |
| CN111445765A (en) * | 2020-05-09 | 2020-07-24 | 河南经贸职业学院 | Display device for advanced mathematics |
| WO2020227840A1 (en) * | 2019-05-10 | 2020-11-19 | Universidad Del Desarrollo | Device for teaching |
-
2012
- 2012-11-26 CN CN 201220630383 patent/CN202956959U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167126A (en) * | 2014-07-09 | 2014-11-26 | 孔震 | Sine function image generation demonstration device and demonstration method |
| CN104809939A (en) * | 2015-04-30 | 2015-07-29 | 陕西理工学院 | Trigonometric teaching aid |
| CN104809939B (en) * | 2015-04-30 | 2017-03-22 | 陕西理工学院 | Trigonometric teaching aid |
| CN105303933A (en) * | 2015-11-25 | 2016-02-03 | 浙江大学城市学院 | Simple harmonic vibration curve plotting demonstration experimental instrument |
| CN105303933B (en) * | 2015-11-25 | 2018-11-02 | 浙江大学城市学院 | A kind of THE CURVES ON WHICH A POINT MASS OSCILLATES HARMONICALLY drafting demonstration test instrument |
| CN106205315A (en) * | 2016-10-09 | 2016-12-07 | 陈冠伦 | A kind of experiment of electromagnetism comprehensive demonstration device |
| CN106205315B (en) * | 2016-10-09 | 2018-10-23 | 仲强 | A kind of experiment of electromagnetism comprehensive demonstration device |
| WO2020227840A1 (en) * | 2019-05-10 | 2020-11-19 | Universidad Del Desarrollo | Device for teaching |
| CN111445765A (en) * | 2020-05-09 | 2020-07-24 | 河南经贸职业学院 | Display device for advanced mathematics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131126 |