CN2722378Y - Screw pipe of automatically played piano - Google Patents
Screw pipe of automatically played piano Download PDFInfo
- Publication number
- CN2722378Y CN2722378Y CN 200420037056 CN200420037056U CN2722378Y CN 2722378 Y CN2722378 Y CN 2722378Y CN 200420037056 CN200420037056 CN 200420037056 CN 200420037056 U CN200420037056 U CN 200420037056U CN 2722378 Y CN2722378 Y CN 2722378Y
- Authority
- CN
- China
- Prior art keywords
- iron core
- solenoid
- sleeve
- coil
- automatic playing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000011148 porous material Substances 0.000 claims description 13
- 239000000696 magnetic material Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000013016 damping Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract 1
- 239000002360 explosive Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008010 sperm capacitation Effects 0.000 description 1
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- Electromagnets (AREA)
Abstract
The utility model relates to a screw pipe used for an automatically played piano, comprising a top cap, an ejector rod, an iron core, a coil, a coil frame and a bracket. An electromagnet is composed of the iron core, the coil and the coil frame which is composed of a bush and upper and lower baffle plates. The top end of the ejector rod is provided with the top cap, and the other end of the ejector rod is fixed with the iron core. The electromagnet is positioned in the bracket, the iron core is arranged in the coil frame, the bottom of the bush is provided with a gas hole, and the bottom of the bush is provided with a buffering pad which is accompanied with the gas hole. The structure is adopted by the utility model to make the iron core accept the damping function of gas in moving, the noise is little, the playing effect is excellent, the installing of the integral device is easy, the maintenance is convenient, and the cost is low.
Description
Technical field
The utility model relates to a kind of solenoid that is used for the automatic playing piano.
Background technology
The automatic playing piano is the manufacturing of a collection piano, and hyundai electronics engineering, computer software engineering and network communications technology are the high-tech electro-mechanical system of one, under the driving of this system, makes traditional piano energy automatic playing go out the piano music of various styles.With mellotron, digital piano, and the sound system difference, automatic playing piano energy anthropomorphic dummy's performance, key and pedal can move up and down when playing music, just as there being the invisible hand of a pair of to be at the piano.What she embodied is a kind of GOOD TASTE and high-grade art, and mellotron then is a sound horn, and its expressive force can not be compared with piano fully.
Total system is made up of four subsystems, promptly dynamo-electric conversion subsystem, Electronic Control subsystem, software control subsystem, and bent storehouse and composition software subsystem.Dynamo-electric conversion subsystem is made up of o and support thereof, and it is one of vitals of automatic playing piano, after music signal changes electric signal into, converts electric energy to mechanical energy by solenoid exactly, and then driving key and pedal move up and down.
At present, when driving piano key, there are two control difficult points with o, the one, mechanicalness noise, the 2nd, the movement velocity of o iron core.The explosive force that is produced after the capacitation of o iron core is the control difficult point of piano automatic playing system always.
2002, Beijing Musical Instment Inst. went through and succeeded in developing similar products in 3 years, to its solenoidal structure application the utility model patent protection (patent No.: 00250943.1).Its described elastic top cap diameter is greater than the diameter of described sleeve, and when iron core descended according to gravity, the elastic top cap just can rest and cover, and sets back like this.Its advantage is to have solved the mechanicalness noise problem, and its shortcoming is the not effectively control of movement velocity of iron core, when iron core falls after rise, because inertia is bigger, the elastic top cap still has the possibility that comes off, and iron core be unfit to do too big, and the playing effect that seeks out needs iron core to do greatly as far as possible again.
The also useful back-moving spring of external product resets iron core, but back-moving spring can increase noise and manufacturing cost, reduces system reliability.The manufacturer adopts cushion pad to reduce the collision that produces when iron core falls after rise usually, and the selection of the material of cushion pad is very difficult, too soft, good muffling effect, but yielding, influence solenoidal physical life; Too hard, erasure effect is bad.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, utilizes the air damping effect in the iron core motion process, makes the iron core motion very steady, more near people's finger, has significantly reduced mechanicalness noise during the key motion.
The technical scheme that the utility model is taked is a kind of solenoid that is used for the automatic playing piano, by the top cap, push rod, electromagnet and support are formed, electromagnet is by iron core, coil and coil former are formed, coil former is by sleeve and last, lower baffle is formed, the top dress crown cap of push rod, the other end and iron core are fixed, electromagnet is positioned at support, the cover tube bottom is provided with pore and has the cushion pad of pore, and push rod and coil former all adopt non-magnetic material, the air vent aperture that cushion pad is provided with is less than the air vent aperture of cover tube bottom, support is " b " font, and long one side is an installed surface, has on it with long slot and the screw of screw fixings on installing plate.By the produced o of the above scheme, particularly can utilize the pore opening on the cushion pad to regulate air-damped size, this just controls iron core ground movement velocity effectively, makes piano reduce to minimum level because of solenoid brings the ground mechanicalness noise, thereby improves playing effect.
Description of drawings
Fig. 1 cross-sectional view of the present utility model.
Fig. 2 Fig. 1 side structure synoptic diagram.
Embodiment
In conjunction with Fig. 1 and Fig. 2 the utility model embodiment is done a detailed description.
A kind of solenoid that is used for the automatic playing piano of the utility model shown in Figure 1, by top cap 1, push rod 2, iron core 6, coil 4, coil former and support 3 are formed, iron core 6, coil 4 and coil former are formed electromagnet, sleeve 5, last plate washer 9 and lower baffle 10 are formed coil former, the top dress crown cap 1 of push rod 2, the other end and iron core 6 are fixing, electromagnet is positioned at support 3, iron core 6 is set in the sleeve 5, the outer wall of iron core 6 is close to the inwall of coil former, and the outer wall of coil former is wound with coil 4, and sleeve 5 bottoms are provided with pore 8, sleeve 5 bottoms are provided with the cushion pad 7 that has pore, the aperture of the pore that cushion pad 7 is provided with is littler than the aperture of the pore of sleeve 5 bottoms, and what push rod 2 was adopted is the alloy non-magnetic material, and coil former adopts plastics, support 3 is " b " font, and the two sides, front and back is not sealed.The long one side of support shown in Figure 2 has slot 12 and circular port 11 in order to screw fixings on it.
When coil 4 no powers, iron core 6 drops on the bottom surface of sleeve 5; After coil 4 energisings, when iron core 6 moves upward, in sleeve 5, can produce pumping.Air is drawn in sleeve 5 bodies by the slit between pore 8 and iron core 6 and the sleeve 5.Pumping can reduce the explosive force of iron core 6; When coil 4 outage, the bottom that iron core 6 can the gravity of dependence own falls back to sleeve 5 when iron core 6 falls after rise, can produce the exhaust effects in the sleeve 5, and it is external that air is discharged from sleeve 5 by the slit between pore 8 and iron core 6 and the sleeve 5.The exhaust effect has reduced the speed that iron core 6 falls after rise, has alleviated the collision with sleeve 5 bottoms and cushion pad 7, makes noise be reduced to minimum degree.
This solenoid drives key with such solenoid, the effect that sounding is more played near the human finger owing to adopt the structure of above-mentioned air-resistance type; Simultaneously, bleed and the exhaust effect also can allow gas take away the heat that coil produces in use, play the effect of heat radiation; Moreover vapour lock can be regulated by the size of pore, can utilize the different cushion pad of pore opening to regulate the size of vapour lock in the present embodiment.
The utility model iron core explosive force is little in sum, and mechanicalness noise is low, and movement velocity is steady, long service life, and simple installation, easy to maintenance.
Claims (6)
1, a kind of solenoid that is used for the automatic playing piano, form by top cap (1), push rod (2), electromagnet and support (3), electromagnet is made up of iron core (6), coil (4) and coil former, coil former is made up of sleeve (5), last plate washer (9) and lower baffle (10), the top dress crown cap (1) of push rod (2), the other end and iron core (6) are fixing, electromagnet is positioned at support (3), it is characterized in that, sleeve (5) bottom is provided with pore (8), is provided with the cushion pad (7) that has pore on sleeve (5) bottom.
2, a kind of solenoid that is used for the automatic playing piano according to claim 1 is characterized in that air vent aperture that described cushion pad (7) the is provided with air vent aperture less than sleeve (5) bottom.
3, a kind of solenoid that is used for the automatic playing piano according to claim 1 and 2, it is characterized in that described support (3) is to be " b " font, long one side is an installed surface, at its upper and lower slot (12) and the circular hole (11) that is used to install that be respectively equipped with.
4, a kind of solenoid that is used for the automatic playing piano according to claim 1 is characterized in that described push rod (2) adopts non-magnetic material.
5, a kind of solenoid that is used for the automatic playing piano according to claim 1 is characterized in that described coil former is to be made by non-magnetic material.
6, a kind of according to claim 1 or 5 solenoid that is used for the automatic playing piano is characterized in that described coil former is to be made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037056 CN2722378Y (en) | 2004-07-01 | 2004-07-01 | Screw pipe of automatically played piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037056 CN2722378Y (en) | 2004-07-01 | 2004-07-01 | Screw pipe of automatically played piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722378Y true CN2722378Y (en) | 2005-08-31 |
Family
ID=35012748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037056 Expired - Fee Related CN2722378Y (en) | 2004-07-01 | 2004-07-01 | Screw pipe of automatically played piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722378Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866645A (en) * | 2010-03-30 | 2010-10-20 | 北京乐器研究所 | Piano keyboard vibration playing instrument |
| WO2018132965A1 (en) * | 2017-01-18 | 2018-07-26 | Sunland Information Technology Co., Ltd. | An automatic playing system |
-
2004
- 2004-07-01 CN CN 200420037056 patent/CN2722378Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866645A (en) * | 2010-03-30 | 2010-10-20 | 北京乐器研究所 | Piano keyboard vibration playing instrument |
| CN101866645B (en) * | 2010-03-30 | 2012-06-13 | 北京乐器研究所 | Piano keyboard vibration playing instrument |
| WO2018132965A1 (en) * | 2017-01-18 | 2018-07-26 | Sunland Information Technology Co., Ltd. | An automatic playing system |
| CN109478397A (en) * | 2017-01-18 | 2019-03-15 | 森兰信息科技（上海）有限公司 | automatic playing system |
| CN109478397B (en) * | 2017-01-18 | 2021-05-18 | 森兰信息科技（上海）有限公司 | automatic playing system |
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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: 20050831 Termination date: 20090701 |