CN103218994B - Upright piano action axle bush job operation and device - Google Patents

Upright piano action axle bush job operation and device Download PDF

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Publication number
CN103218994B
CN103218994B CN201310077443.6A CN201310077443A CN103218994B CN 103218994 B CN103218994 B CN 103218994B CN 201310077443 A CN201310077443 A CN 201310077443A CN 103218994 B CN103218994 B CN 103218994B
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CN
China
Prior art keywords
axle
axle bush
nail
pedestal
bush
Prior art date
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Expired - Fee Related
Application number
CN201310077443.6A
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Chinese (zh)
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CN103218994A (en
Inventor
吴天延
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YIBIN SANYING MUSICAL INSTRUMENT MANUFACTURING Co Ltd
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YIBIN SANYING MUSICAL INSTRUMENT MANUFACTURING Co Ltd
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Priority to CN201310077443.6A priority Critical patent/CN103218994B/en
Publication of CN103218994A publication Critical patent/CN103218994A/en
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Publication of CN103218994B publication Critical patent/CN103218994B/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of upright piano action axle bush device, comprise pedestal, pedestal is provided with axle nail, axle nail is arranged in axle nail, axle bush is provided with between described axle nail and axle nail inwall, the face that described axle bush touches with axle nail joint is graphite coating layer, and the face that axle bush contacts with axle nail is glue application face.Described axle bush and axle are also provided with lead powder layer between following closely.Process a method for above-mentioned upright piano action axle bush device, be coated with lead powder in axle bush side; Axle bush is rolled into ring-type, with the axle nail of graphite coating layer for inner ring implantation pedestal; Pedestal assembly places 10-14 hour after soaking the mixed liquor of silicone oil emulsion and cocounut oil crystal soda; Cut the rear punching of axle bush, then carry out secondary and cut axle bush; Seven, axle nail places 5-9 days after implanting; Extract axle nail; The processing of upright piano action axle bush is realized by above-mentioned steps.Pedestal of the present invention plays test through the shake of 1,000,000 times, and the axle nail power surveyed still can control within the scope of technical requirement.

Description

Upright piano action axle bush job operation and device
Technical field
The present invention relates to Piano Fittings field, particularly a kind of upright piano action axle bush job operation and device.
Background technology
Pedestal is the joint part inside hammered string instrument, and turning device, clutch, damper are all operated by pedestal axes inside nail.The quality improving pedestal is exactly that one of hammered string instrument quality ensures greatly.And the quality of pedestal just depends on stability, the lubricity of axle bush.The sensitivity improving pedestal is particularly important.
Hammered string instrument axle bush of the prior art is difficult to ensure the stability of long-term lubrication, and be difficult to reach after test is played in the shake of 1,000,000 times, axle nail power still controls within the scope of technical requirement.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of upright piano action axle bush job operation and device, can improve the lubricity of axle bush and the stability of long-term lubrication thereof.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of upright piano action axle bush device, comprise pedestal, pedestal is provided with axle nail, axle nail is arranged in axle nail, be provided with axle bush between described axle nail and axle nail inwall, the face that described axle bush touches with axle nail joint is graphite coating layer, and the face that axle bush contacts with axle nail is glue application face.
Described axle bush and axle are also provided with lead powder layer between following closely.
The axle bush of axle bush closes up the side of position towards pedestal notch.
Process a method for above-mentioned upright piano action axle bush device, comprise the following steps:
One, the graphite coating layer in axle bush side is coated with lead powder;
Two, tip is cut out in axle bush front end;
Three, at axle bush opposite side gluing;
Four, axle bush is rolled into ring-type, with the axle nail of graphite coating layer for inner ring implantation pedestal;
Five, pedestal assembly places 10-14 hour after soaking the mixed liquor of silicone oil emulsion and cocounut oil crystal soda;
Six, cut the rear punching of axle bush, then carry out secondary and cut axle bush;
Seven, axle nail places 5-9 days after implanting;
Eight, axle nail is extracted;
The processing of upright piano action axle bush is realized by above-mentioned steps.
Described silicone oil emulsion and cocounut oil crystal soda proportioning are by volume 26 ~ 28:1.
In step 4, implant multiple pedestal simultaneously.
In step 6, when first time cuts axle bush, retain redundancy termination in side.
Described redundancy termination length A is 2-4mm.
In step 4, the one end of implanting back bushing retains a redundancy tail end.
In step 4, described redundancy tail end length B is 18-25mm.
Pedestal is the joint part inside hammered string instrument, and turning device, clutch, damper are all operated by pedestal axes inside nail.Therefore, axle nail and the coordinating of axle bush, torsion that axle is followed closely are vital for the running of hammered string instrument.
A kind of upright piano action axle bush device provided by the invention and job operation, by the lead powder layer arranged, ensure that axle bush obtains smoothness, coordinate the method for soaking silicone oil emulsion and cocounut oil crystal soda mixed liquor, guarantee fully to adhere to lubricating fluid in axle bush, penetrate in axle bush after drying, thus increase the lubricity of axle bush and the stability of long-term lubrication thereof.Have employed the method for cutting axle bush for twice, the soft flocks produced when ensure that and axle bush can not retain boring, avoid pedestal because soft flocks running has some setbacks.Place 5-9 days after implanting axle nail, the torsion that axle is followed closely change tends towards stability.Axle bush closes up position towards pedestal notch, thus guarantees the reliably stressed of axle bush.After pedestal of the present invention is assembled into hammered string instrument, play test through the shake of 1,000,000 times, the axle nail power surveyed still can control within the scope of technical requirement, reaches piano and uses the requirement that flexibility ratio did not decline in 15 years.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the schematic diagram of entire volume axle bush in the present invention.
Fig. 2 is the structural representation that in the present invention, axle bush is most advanced and sophisticated.
Fig. 3 is the lateral plan of pedestal in the present invention.
Stereographic map when Fig. 4 is axle bush implantation pedestal in the present invention.
Fig. 5 is the lateral plan of pedestal in the present invention, show in figure axle bush close up position towards.
Fig. 6 is the front view that in the present invention, axle bush implants multiple pedestal.
Fig. 7 is front view when cutting axle bush in the present invention for the first time.
In figure: pedestal 1, pedestal notch 11, axle bush 2, graphite coating layer 21, glue application face 22, axle bush closes up position 23, lead powder layer 3, axle nail 4.
Embodiment
As in Fig. 3, a kind of upright piano action axle bush device, comprise pedestal 1, pedestal 1 is provided with axle nail, axle nail 4 is arranged in axle nail, be provided with axle bush 2 between described axle nail 4 and axle nail inwall, it is graphite coating layer 21 that described axle bush 2 and axle follow closely 4 faces contacted, and the face that axle bush 2 contacts with axle nail is glue application face 22.
Described axle bush 2 and axle are also provided with lead powder layer 3 between following closely 4.
The axle bush of axle bush 2 closes up the side of position 23 towards pedestal notch 11.Structure thus, guarantees that the force structure of axle bush 2 is more reliable.
As in Fig. 1-7, a kind of method of processing above-mentioned upright piano action axle bush device, comprises the following steps:
One, lead powder is coated with at the graphite coating layer 21 of axle bush 2 side; The lead powder layer arranged, ensure that the smoothness of axle bush.Lead powder can penetrate in axle bush uniformly, and through the assembling of operation later, the lead powder of pedestal in the running in axle bush just can fully play the effect of lubrication, makes the running of parts more smooth.
Two, tip is cut out in axle bush 2 front end; As in Fig. 1,2, first cut out the equal axle bush breach of multiple width in axle bush 2 front end of entire volume, C is equal for each axle bush gap width.Then be cut into each and be with cuspidated strip, so that be implanted in pedestal 1.
Three, at axle bush 2 opposite side gluing; Rubberised layer is used for being formed bonding with pedestal 1.
Four, axle bush 2 is rolled into ring-type, with the axle nail of graphite coating layer 21 for inner ring implantation pedestal 1; In the scheme optimized, as in Fig. 6, described axle bush 2 implants multiple pedestal 1 simultaneously.Method thus, improves working (machining) efficiency.In the scheme optimized, as in Fig. 6, the one end of implanting back bushing 2 retains a redundancy tail end.Described redundancy tail end length B is 18-25mm.Described redundancy tail end convenient operation.
Five, pedestal assembly places 10-14 hour after soaking the mixed liquor of silicone oil emulsion and cocounut oil crystal soda, preferably places 12 hours; In the scheme optimized, described silicone oil emulsion and cocounut oil crystal soda proportioning are by volume 26 ~ 28:1.Axle bush smoothness guaranteed by immersion silicone oil emulsion and cocounut oil crystal soda mixed liquor, be combined with lead powder, make lead powder penetrate in axle bush uniformly, through the assembling of operation later, the pedestal lead powder that axle bush is interior in the running just can fully play the effect of lubrication, makes the running of parts more smooth.
Six, cut punching after axle bush 2, then carry out secondary and cut axle bush 2; In the scheme optimized, when first time cuts axle bush 2, retain redundancy termination in side.Described redundancy termination length A is 2-4mm.Adopt the method, can when second time to cut axle bush, the soft flocks produced when removing punching, avoids pedestal because soft flocks running has some setbacks.
Seven, axle nail 4 places 5-9 days after implanting; Preferably place 7 days.Step thus, the torsion that axle is followed closely change more tends towards stability.
Eight, extract axle nail 4, pedestal flows into next procedure;
The processing of upright piano action axle bush is realized by above-mentioned steps.
After pedestal of the present invention is assembled into hammered string instrument, play test through the shake of 1,000,000 times, the axle surveyed nail power still can control within the scope of technical requirement, reaches the requirement that piano 15 years flexibility ratios do not decline.

Claims (8)

1. process the method for upright piano action axle bush device for one kind, axle bush device comprises pedestal (1), pedestal (1) is provided with axle nail, axle nail (4) is arranged in axle nail, axle bush (2) is provided with between described axle nail (4) and axle nail inwall, described axle bush (2) follows closely the face that (4) contact with axle be graphite coating layer (21), and the face that axle bush (2) contacts with axle nail is glue application face (22), it is characterized in that comprising the following steps:
One, at axle bush, the graphite coating layer (21) of (2) side is coated with lead powder;
Two, at axle bush, (2) front end cuts out tip;
Three, (2) opposite side gluing at axle bush;
Four, by axle bush, (2) are rolled into ring-type, with the axle nail of graphite coating layer (21) for inner ring implantation pedestal (1);
Five, pedestal assembly places 10-14 hour after soaking the mixed liquor of silicone oil emulsion and cocounut oil crystal soda;
Six, cut axle bush (2) to punch afterwards, then carry out secondary and cut axle bush (2);
Seven, axle nail (4) places 5-9 days after implanting;
Eight, axle nail (4) is extracted;
The processing of upright piano action axle bush is realized by above-mentioned steps.
2. the method for processing upright piano action axle bush device according to claim 1, is characterized in that: the axle bush of axle bush (2) closes up the side of position (23) towards pedestal notch (11).
3. a kind of method of processing upright piano action axle bush device according to claim 1, is characterized in that: described silicone oil emulsion and cocounut oil crystal soda proportioning are by volume 26 ~ 28:1.
4. a kind of method of processing upright piano action axle bush device according to claim 1, is characterized in that: in step 4, implants multiple pedestal (1) simultaneously.
5. a kind of method of processing upright piano action axle bush device according to claim 1, is characterized in that: in step 6, retains redundancy termination when first time cuts axle bush (2) in side.
6. a kind of method of processing upright piano action axle bush device according to claim 5, is characterized in that: described redundancy termination length A is 2-4mm.
7. a kind of method of processing upright piano action axle bush device according to claim 1, is characterized in that: in step 4, and the one end of implanting back bushing (2) retains a redundancy tail end.
8. a kind of method of processing upright piano action axle bush device according to claim 7, is characterized in that: in step 4, and described redundancy tail end length B is 18-25mm.
CN201310077443.6A 2013-03-12 2013-03-12 Upright piano action axle bush job operation and device Expired - Fee Related CN103218994B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310077443.6A CN103218994B (en) 2013-03-12 2013-03-12 Upright piano action axle bush job operation and device

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Application Number Priority Date Filing Date Title
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CN103218994B true CN103218994B (en) 2016-03-02

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104064166A (en) * 2014-07-08 2014-09-24 森鹤乐器股份有限公司 Lubricating treatment method for ejector rod of piano string striking machine
CN109493833B (en) * 2018-10-22 2021-09-07 森鹤乐器股份有限公司 Automatic woolen yarn machine of wearing of piano pedestal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB239015A (en) * 1924-07-17 1925-09-03 Frederick Bansall Allen Improvements in the method of and apparatus for bushing articles with flexible bushing material
US4386455A (en) * 1981-06-15 1983-06-07 Cbs Bearings for piano action mechanism employing bushing cloth and method of fabricating same
DE3428759A1 (en) * 1983-08-06 1985-02-28 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka Improved bearing bush for pegs of a piano keyboard mechanism
CN101101748A (en) * 2006-07-03 2008-01-09 浙江东方琴业有限公司 Piano string-striking shaft bracket bearing production method and the bearing
CN101788015A (en) * 2010-02-26 2010-07-28 复旦大学 Three-layer self lubricating abrasion-resistant slide bearing material and preparation method thereof
CN203118424U (en) * 2013-03-12 2013-08-07 宜昌三盈乐器制造有限公司 Vertical piano action bushing device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2731634Y (en) * 2004-09-09 2005-10-05 王耀中 Special rolling bearing for piano string hammering machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB239015A (en) * 1924-07-17 1925-09-03 Frederick Bansall Allen Improvements in the method of and apparatus for bushing articles with flexible bushing material
US4386455A (en) * 1981-06-15 1983-06-07 Cbs Bearings for piano action mechanism employing bushing cloth and method of fabricating same
DE3428759A1 (en) * 1983-08-06 1985-02-28 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka Improved bearing bush for pegs of a piano keyboard mechanism
CN101101748A (en) * 2006-07-03 2008-01-09 浙江东方琴业有限公司 Piano string-striking shaft bracket bearing production method and the bearing
CN101788015A (en) * 2010-02-26 2010-07-28 复旦大学 Three-layer self lubricating abrasion-resistant slide bearing material and preparation method thereof
CN203118424U (en) * 2013-03-12 2013-08-07 宜昌三盈乐器制造有限公司 Vertical piano action bushing device

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