CN207938304U - a kind of music box - Google Patents
a kind of music box Download PDFInfo
- Publication number
- CN207938304U CN207938304U CN201720906590.3U CN201720906590U CN207938304U CN 207938304 U CN207938304 U CN 207938304U CN 201720906590 U CN201720906590 U CN 201720906590U CN 207938304 U CN207938304 U CN 207938304U
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- CN
- China
- Prior art keywords
- plectrum
- simple harmonic
- soundboard
- harmonic motion
- controlled
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Abstract
The utility model is a kind of music box, this kind of music box drives soundboard to do the reciprocal simple harmonic motion of left and right directions by simple harmonic motion generator, soundboard during doing simple harmonic motion can regular and single program-controlled plectrum it is integrated on plectrum collide, it is regular in turn to send out sound, since the microcontroller being fixed in control pedestal can control the retracted position of the integrated interior each plectrum of scheduling control plectrum, therefore collision can send out the sound needed for each syllable every time, therefore the rhythmical sound sent out needed for each syllable constitutes the music to be played.
Description
Technical field
The utility model is to be related to musical instruments field, specifically a kind of music box.
Background technology
Traditional music box is mainly made of roller, reed.Its main operational principle is：After screwing clockwork spring, clockwork spring drives
Surface has the roller of fixed kick to rotate, and when reed passes through the protrusion compiled and edited according to movement, protrusion stirs reed, to
Reed is set to shake and make a sound.The reed of traditional music box is to be cut into wide and different in size steel pectination rack.
It is the form of expression of note according to the protrusion that movement is compiled and edited on roller, point at roller different location burn-ons according to melody small convex
Point will produce fixed melody after rotating clockwork spring.Traditional music box makes simply, but just fixation can not change melody after manufacture
Become, and because diameter of cylinder limitation causes the work period limited, the duration for the song played is also therefore impacted.The utility model
Mainly change in articulatory configuration part, it is programmable to realize song, and the song time is without limitation and adjustable.
Invention content
The technical problem to be solved by the present invention is to provide a kind of music box, this kind of music box can pass through crank connecting link
Mechanism drive soundboard and single program-controlled plectrum integrate it is regular collide, can be controlled by microcontroller in this kind of music box
The retracted position of plectrum controls the sound status sent out when collision every time, that is, each sound in turn in single program-controlled plectrum is integrated
Save required sound；This kind of music box can also control the frequency of pronunciation by motor, and then play out different music rhythms
Music.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of music box, it is characterized in that：Including shell, the enclosure has articulatory configuration, the pronunciation knot
Structure includes simple harmonic motion generator, and the simple harmonic motion generator is horizontal positioned inside the shell, and the simple harmonic motion occurs
Sliding bottom is installed above device, the sliding bottom can do simple harmonic quantity fortune in the groove of simple harmonic motion generator upper surface
Dynamic, the upper face center position of the sliding bottom is equipped with the soundboard installed straight up, the surface of the soundboard
The single program-controlled plectrum being equipped with straight down is integrated, and the single program-controlled plectrum is integrated to be fixed side by side by several program-controlled plectrums
It is formed by connecting, telescopic plectrum is installed in the program-controlled plectrum, the single program-controlled plectrum is integrated to be fixedly mounted on
Control the lower surface of pedestal；
The integrated single program-controlled plectrum is when plectrum stretches out at a distance from soundboard, and plectrum is during simple harmonic motion
It can collide with soundboard, when plectrum is retracted, single program-controlled plectrum is integrated and soundboard does not touch during simple harmonic motion
It hits；
Microcontroller is installed in the control pedestal, the microcontroller obtains output end and is connect with program-controlled plectrum signal,
And the retracted position of plectrum can be controlled, be inlaid with data-interface on the side wall of the control pedestal, the data-interface with
The input end signal of microcontroller connects.
To optimize above-mentioned utility model, the concrete measure taken further includes：
The microcontroller is LS53C type microcontrollers.
The simple harmonic motion generator upper surface is provided with the through-hole of strip, and sliding bottom is equipped in the through-hole
Seat, the lower surface of the sliding bottom are equipped with pulley, and the pulley is fixed in guide rail, and the pulley can be in guide rail
Interior sliding, the sliding bottom are driven by toggle, and reciprocal simple harmonic motion, the sliding are done in guide rail
The side of pedestal is equipped with limit stabilizing spring, and one end of the limit stabilizing spring and the inner wall of simple harmonic motion generator are solid
Fixed connection, the other end are fixedly connected with the side of sliding bottom.
The toggle includes rotational speed governor, the transmission shaft of the rotational speed governor and first connecting rod
One end is fixedly connected, and the other end of the first connecting rod and one end of second connecting rod are hinged, the second connecting rod it is another
End is hinged with drive shaft, and the drive shaft is fixedly mounted on the side surface of sliding bottom, the axle center of the transmission shaft and drive
The axle center of moving axis is located at same level.
The rotational speed governor includes motor, retarder and shaft coupling, and the motor is based on TMS320F2812's
DC brushless motor, the retarder are gear set retarder, and the output shaft of the motor and the input shaft of retarder are solid
Fixed connection, the output shaft of the retarder is fixedly connected by shaft coupling with transmission shaft, in the simple harmonic motion generator
Counterweight is installed, the installation site of the counterweight and the installation site of rotational speed governor are symmetrical.
The program-controlled plectrum includes every magnetic shell, and described is hollow structure every the inside of magnetic shell and bottom is equipped with
Electromagnet is connected with magnechuck above the electromagnet, is equipped on the magnechuck moving up and down
The upper surface of magnet, the magnet is connected with fixed plate, and the fixed plate connects plectrum, the plectrum position by connecting rod
It is described that spring retainer block is installed above the inward flange of magnetic shell at the upper outlet every magnetic shell, the connecting rod
Surrounding is equipped with spring, and the upper/lower terminal of the spring is respectively and fixedly installed to lower surface and the fixed plate of spring retainer block
Upper surface, the energized state of the electrode of the electromagnet controls by microcontroller.
Junction between the sliding bottom and soundboard is equipped with soundboard damper.
This kind of music box does the simple harmonic motion of left and right directions, therefore simple harmonic motion by simple harmonic motion generator drive soundboard
During can drive soundboard and single program-controlled plectrum it is integrated on plectrum collide, due to each single program-controlled plectrum collection
It is different at the retracted position of interior plectrum, the sound of a syllable can be played out according to the content of played music, continuously not
The rhythmical sound sent out successively in each syllable that breaks can play out a first required music.
Simple harmonic motion generator in music box is motor-driven toggle, is driven by toggle
Soundboard does simple harmonic motion, wherein controlling performed music rhythm, simple harmonic motion generator by controlling the rotating speed of motor
It is inside also equipped with counterweight, the stability for shaking and then influencing entire music box caused by the rotation of motor can be prevented.Slide bottom
Junction between seat and soundboard is equipped with soundboard damper, and soundboard damper can be after soundboard sends out a sound quickly
Soundboard is set to stop vibrations
Single program-controlled plectrum is integrated to be made of the multiple program-controlled plectrums being mounted side by side, and in the quantity and soundboard of program-controlled plectrum
The quantity of vibrating reed is identical, and the shell of program-controlled plectrum is magnetic separator, prevents adjacent program-controlled plectrum from being sent out when controlling plectrum and stretching
Raw interference, electromagnet is equipped with every the bottom of magnetic shell, and electromagnet is connect by electrode with single-chip microcomputer signal, when electrode is powered
When, electromagnet generates magnetic field, and magnet is repelled upwards, the resistance for overcoming spring, magnet is needed to move upwards drive plectrum at this time
Protruding, plectrum can be in contact with soundboard, be made a sound, and electromagnet 2 powers off after plectrum is contacted with soundboard, and spring 8 is by magnetic
Iron 4 pushes down on reset, and the stretching for next time is ready.
The control circuit of this kind of music box is that the design method of layered circuit is divided into three circuit boards, lower layer from bottom to top
For main circuit inverter module driving plate, middle level is signal regulating panel, and upper layer is core control panel, and simple structure, reliability is high, and
And replace and be easy, there is stronger versatility.Can be realized simultaneously counter electromotive force Zero-cross comparator position-sensor-free commutation and suddenly
Your position signal commutates, and can accurately control the DC brushless motor speed governing control based on TMS320F2812 of motor different rotating speeds
Device processed.
Description of the drawings
Fig. 1 is a kind of structure principle chart of music box of the utility model.
Fig. 2 is a kind of structure principle chart of music box simple harmonic motion generator of the utility model.
Fig. 3 is a kind of structure principle chart of the program-controlled plectrum of music box of the utility model.
Fig. 4 is a kind of structure principle chart of music box control circuit of the utility model.
Marginal data：1, every magnetic shell；2, electromagnet；3, magnechuck；4, magnet；5, fixed plate；6, connecting rod；7, it dials
Piece；8, spring；9, spring retainer block；10, electrode；11, simple harmonic motion generator；12, sliding bottom；13, soundboard；14, soundboard
Damper；15, single program-controlled plectrum is integrated；16, pedestal is controlled；17, data-interface；18, program-controlled plectrum；19, it limits and stablizes bullet
Spring；20, pulley；21, guide rail；22, rotational speed governor；23, transmission shaft；24, first connecting rod；25, second connecting rod；26, drive shaft；
27, counterweight.
Specific implementation mode
The utility model is further described below in conjunction with Figure of description and specific preferred embodiment.
A kind of music box, it is characterized in that：Including shell, the enclosure has articulatory configuration, the pronunciation knot
Structure includes simple harmonic motion generator 11, and the simple harmonic motion generator 11 is horizontal positioned inside the shell, the simple harmonic motion
11 top of generator is equipped with sliding bottom 12, and the sliding bottom 12 can be in the groove of 11 upper surface of simple harmonic motion generator
Simple harmonic motion is inside done, the upper face center position of the sliding bottom 12 is equipped with the soundboard 13 installed straight up, described
The surface of soundboard 13 single program-controlled plectrum straight down integrated 15 is installed, the single program-controlled plectrum integrated 15 by
Several program-controlled plectrums 18 are formed by fixedly connecting side by side, and telescopic plectrum 7, the list are equipped in the program-controlled plectrum 18
Scheduling control plectrum integrated 15 is fixedly mounted on the lower surface of control pedestal 16；
The single program-controlled plectrum integrated 15 is at a distance from soundboard 13 for when plectrum 7 stretches out, plectrum 7 is in simple harmonic motion
It can collide in the process with soundboard 13, when plectrum 7 is retracted, single program-controlled plectrum integrated 15 and soundboard 13 are in simple harmonic motion
It does not collide in journey；
Microcontroller is installed, the microcontroller obtains output end and connects with 18 signal of program-controlled plectrum in the control pedestal 16
It connects, and the retracted position of plectrum 7 can be controlled, data-interface 17, the number are inlaid on the side wall of the control pedestal 16
It is connect with the input end signal of microcontroller according to interface 17.
In the present embodiment, microcontroller is LS53C type microcontrollers.
11 upper surface of simple harmonic motion generator is provided with the through-hole of strip, and sliding bottom is equipped in the through-hole
Seat 12, the lower surface of the sliding bottom 12 is equipped with pulley 20, and the pulley 20 is fixed in guide rail 21, the cunning
Wheel 20 sliding, the sliding bottom 12 can be driven by toggle, be done in guide rail 21 reciprocal in guide rail 21
The side of simple harmonic motion, the sliding bottom 12 is equipped with limit stabilizing spring 19, limit stabilizing spring 19 one
End is fixedly connected with the inner wall of simple harmonic motion generator 11, and the other end is fixedly connected with the side of sliding bottom 12.
The toggle includes rotational speed governor 22, the transmission shaft 23 and first of the rotational speed governor 22
One end of connecting rod 24 is fixedly connected, and the other end of the first connecting rod 24 and one end of second connecting rod 25 are hinged, and described the
The other end of two connecting rods 25 is hinged with drive shaft 26, and the drive shaft 26 is fixedly mounted on the side surface of sliding bottom 12, institute
The axle center for the transmission shaft 23 stated and the axle center of drive shaft 26 are located at same level.
The rotational speed governor 22 includes motor, retarder and shaft coupling, and the motor is based on TMS320F2812
DC brushless motor, the retarder be gear set retarder, the output shaft of the motor and the input shaft of retarder
It is fixedly connected, the output shaft of the retarder is fixedly connected by shaft coupling with transmission shaft 23, and the simple harmonic motion occurs
Counterweight 27 is installed, the installation site and the installation site of rotational speed governor 22 of the counterweight 27 are symmetrical in device 11.
The program-controlled plectrum 18 includes every magnetic shell 1, and described is hollow structure every the inside of magnetic shell 1 and bottom is pacified
Equipped with electromagnet 2, the top of the electromagnet 2 is connected with magnechuck 3, be equipped on the magnechuck 3 can on
The upper surface of the magnet 4 of lower movement, the magnet 4 is connected with fixed plate 5, and the fixed plate 5 connects plectrum by connecting rod 6
7, the plectrum 7 is located at the upper outlet of magnetic shell 1, described that spring limit is equipped with above the inward flange of magnetic shell 1
Position block 9, spring 8 is equipped with around the connecting rod 6, and the upper/lower terminal of the spring 8 is respectively and fixedly installed to spring limit
The upper surface of the lower surface and fixed plate 5 of position block 9, the energized state of the electrode 10 of the electromagnet 2 are controlled by microcontroller.
Junction between the sliding bottom 12 and soundboard 13 is equipped with soundboard damper 14.
This kind of music box does the simple harmonic motion of left and right directions, therefore simple harmonic quantity by the drive soundboard 13 of simple harmonic motion generator 11
Soundboard 13 can be driven to collide with the plectrum 7 on single program-controlled plectrum integrated 15 during movement, due to single every time
The retracted position of plectrum 7 in program-controlled plectrum integrated 15 is different, and a syllable can be played out according to the content of played music
Sound, the successive rhythmical sound sent out successively in each syllable can play out a first required music.
Simple harmonic motion generator 11 in music box is motor-driven toggle, passes through toggle band
Dynamic soundboard does simple harmonic motion, wherein controlling performed music rhythm by controlling the rotating speed of motor, simple harmonic motion occurs
It is also equipped with counterweight 27 in device 11, the stability for shaking and then influencing entire music box caused by the rotation of motor can be prevented.
Junction between sliding bottom 12 and soundboard 13 is equipped with soundboard damper 14, and soundboard damper 14 can be sent out in soundboard 13
Soundboard 13 is quickly set to stop vibrations after sound
Single program-controlled plectrum integrated 15 is made of the multiple program-controlled plectrums 18 being mounted side by side, and the quantity of program-controlled plectrum 18 with
The quantity of vibrating reed is identical on soundboard, and the shell of program-controlled plectrum 18 is magnetic separator 1, prevents adjacent program-controlled plectrum 18 from being dialled in control
Piece 7 interferes when stretching, and is equipped with electromagnet 2 every the bottom of magnetic shell 1, electromagnet 2 passes through electrode 10 and single-chip microcomputer signal
Connection, when electrode 10 is powered, electromagnet 2 generates magnetic field, and magnet 4 is repelled upwards, needs the resistance for overcoming spring 8, magnetic at this time
Moving upwards for iron 4 drives plectrum 7 protruding, and plectrum 7 can be in contact with soundboard, be made a sound, and plectrum 7 is contacted with soundboard
Electromagnet 2 powers off afterwards, and magnet 4 is pushed down on reset by spring 8, and the stretching for next time is ready.
The control circuit of this kind of music box is that the design method of layered circuit is divided into three circuit boards, lower layer from bottom to top
For main circuit inverter module driving plate, middle level is signal regulating panel, and upper layer is core control panel, and simple structure, reliability is high, and
And replace and be easy, there is stronger versatility.Can be realized simultaneously counter electromotive force Zero-cross comparator position-sensor-free commutation and suddenly
Your position signal commutates, and can accurately control the DC brushless motor speed governing control based on TMS320F2812 of motor different rotating speeds
Device processed.
Above are merely preferred embodiments of the utility model, the scope of protection of the utility model is not limited merely to above-mentioned
Embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should be pointed out that pair
For those skilled in the art, several improvements and modifications without departing from the principle of the utility model,
It should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of music box, it is characterized in that：Including shell, the enclosure has articulatory configuration, the articulatory configuration
Including simple harmonic motion generator（11）, the simple harmonic motion generator（11）It is horizontally arranged inside the shell, simple harmonic quantity fortune
Dynamic generator（11）Top is equipped with sliding bottom（12）, the sliding bottom（12）It can be in simple harmonic motion generator（11）On
Simple harmonic motion, the sliding bottom are done in the groove on surface（12）Upper face center position be equipped with and install straight up
Soundboard（13）, the soundboard（13）To be equipped with single program-controlled plectrum straight down integrated for surface（15）, the list
Scheduling control plectrum is integrated（15）By several program-controlled plectrums（18）It is formed by fixedly connecting side by side, the program-controlled plectrum（18）Interior installation
There is telescopic plectrum（7）, the single program-controlled plectrum is integrated（15）It is fixedly mounted on control pedestal（16）Lower surface；
The single program-controlled plectrum is integrated（15）With soundboard（13）Distance be work as plectrum（7）When stretching, plectrum（7）In simple harmonic quantity
Energy and soundboard in motion process（13）It collides, works as plectrum（7）When retraction, single program-controlled plectrum is integrated（15）And soundboard（13）
It does not collide during simple harmonic motion；
The control pedestal（16）Microcontroller is inside installed, the microcontroller obtains output end and program-controlled plectrum（18）Signal connects
It connects, and plectrum can be controlled（7）Retracted position, the control pedestal（16）Side wall on be inlaid with data-interface（17）, institute
The data-interface stated（17）It is connect with the input end signal of microcontroller.
2. a kind of music box according to claim 1, it is characterised in that：The microcontroller is LS53C type microcontrollers.
3. a kind of music box according to claim 1, it is characterised in that：The simple harmonic motion generator（11）Upper surface
It is provided with the through-hole of strip, sliding bottom is installed in the through-hole（12）, the sliding bottom（12）Lower surface peace
Equipped with pulley（20）, the pulley（20）It is fixed on guide rail（21）Interior, described pulley（20）It can be in guide rail（21）Interior sliding,
The sliding bottom（12）It is driven by toggle, in guide rail（21）Do reciprocal simple harmonic motion, the cunning
Dynamic pedestal（12）Side limit stabilizing spring is installed（19）, the limit stabilizing spring（19）One end and simple harmonic motion
Generator（11）Inner wall be fixedly connected, the other end and sliding bottom（12）Side be fixedly connected.
4. a kind of music box according to claim 3, it is characterised in that：The toggle includes rotating speed control
Device（22）, the rotational speed governor（22）Transmission shaft（23）With first connecting rod（24）One end be fixedly connected, described
One connecting rod（24）The other end and second connecting rod（25）Hinged, the described second connecting rod in one end（25）The other end and drive shaft
（26）Hinged, described drive shaft（26）It is fixedly mounted on sliding bottom（12）Side surface, the transmission shaft（23）Axis
The heart and drive shaft（26）Axle center be located at same level.
5. a kind of music box according to claim 4, it is characterised in that：The rotational speed governor（22）Including motor,
Retarder and shaft coupling, the motor are the DC brushless motor based on TMS320F2812, and the retarder is gear set
Retarder, the output shaft of the motor are fixedly connected with the input shaft of retarder, and the output shaft of the retarder passes through connection
Axis device and transmission shaft（23）It is fixedly connected, the simple harmonic motion generator（11）Counterweight is inside installed（27）, the counterweight
（27）Installation site and rotational speed governor（22）Installation site it is symmetrical.
6. a kind of music box according to claim 1, it is characterised in that：The program-controlled plectrum（18）Including every magnetic shell
（1）, described every magnetic shell（1）Inside be that hollow structure and bottom are equipped with electromagnet（2）, the electromagnet（2）'s
Top is connected with magnechuck（3）, the magnechuck（3）On magnet moving up and down is installed（4）, the magnetic
Iron（4）Upper surface be connected with fixed plate（5）, the fixed plate（5）Pass through connecting rod（6）Connect plectrum（7）, the plectrum
（7）Positioned at every magnetic shell（1）Upper outlet at, it is described every magnetic shell（1）Inward flange above spring retainer block is installed
（9）, the connecting rod（6）Around spring is installed（8）, the spring（8）Upper/lower terminal be respectively and fixedly installed to bullet
Spring limited block（9）Lower surface and fixed plate（5）Upper surface, the electromagnet（2）Electrode（10）Energized state by
Microcontroller controls.
7. a kind of music box according to claim 1, it is characterised in that：The sliding bottom（12）And soundboard（13）It
Between junction soundboard damper is installed（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720906590.3U CN207938304U (en) | 2017-07-25 | 2017-07-25 | a kind of music box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720906590.3U CN207938304U (en) | 2017-07-25 | 2017-07-25 | a kind of music box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938304U true CN207938304U (en) | 2018-10-02 |
Family
ID=63645162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720906590.3U Expired - Fee Related CN207938304U (en) | 2017-07-25 | 2017-07-25 | a kind of music box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992774A (en) * | 2019-12-20 | 2020-04-10 | 德州职业技术学院（德州市技师学院） | Teaching aid suitable for preschool infant music education |
-
2017
- 2017-07-25 CN CN201720906590.3U patent/CN207938304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110992774A (en) * | 2019-12-20 | 2020-04-10 | 德州职业技术学院（德州市技师学院） | Teaching aid suitable for preschool infant music education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20200725 |