CN102091912B - Processing method of precise taper sleeve bearing bush - Google Patents
Processing method of precise taper sleeve bearing bush Download PDFInfo
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- CN102091912B CN102091912B CN2010105935498A CN201010593549A CN102091912B CN 102091912 B CN102091912 B CN 102091912B CN 2010105935498 A CN2010105935498 A CN 2010105935498A CN 201010593549 A CN201010593549 A CN 201010593549A CN 102091912 B CN102091912 B CN 102091912B
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- grinding
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- male cone
- strobilus masculinus
- tapered surface
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- Rolling Contact Bearings (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a processing method of a precise taper sleeve bearing bush. The processing method comprises the following steps of: roughly turning an outer tapered surface (4), two end surfaces and an inner hole; carrying out recrystallization and annealing treatment; finish turning the outer tapered surface and the inner hole; grinding the two end surfaces; roughly grinding the inner hole with a grinding allowance of 0.50mm; turning the outer tapered surface (4) and an annular groove (5) with a grinding allowance of 0.5mm; roughly grinding the outer tapered surface (4) in a ratio of 1:7.5 with a grinding allowance of 0.20mm; carrying out digital control wire-cutting on an appearance and an oil-breaking groove (2); processing an oil inlet (3); stabilizing annealing; precisely grinding the two end surfaces; grinding the two end surfaces; finely grinding the inner hole; precisely grinding the outer tapered surface (4), wherein the smear test contact rate of the outer tapered surface is larger than 80 percent; shoveling and grinding the annular groove (5); and truing the appearance by a sample tongman and removing an oxide skin generated by wire-cutting. The processing method provided by the invention has the advantages of good stability, high reliability, guarantee on precision of the bearing bush, certain elasticity, adjustable clearance between the bearing bush and the spindle, convenience for assembly and maintenance and strong operability.
Description
Technical field: the present invention relates to the processing of high-precision roller grinder and cylindrical grinder bearing shell, particularly a kind of accurate tapered sleeve bearing shell processing method.
Background technology: bistrique bearing shell in the prior art, in manufacturing process poor operability, poor reliability.Bearing shell and gap of main reinforcement can not be adjusted, because the restriction of manufacturing technology, bearing shell and main shaft need singly be joined, and machine tool accuracy, processing location, cutter and human factor influence cause the bearing shell low precision greatly in process, and be yielding, is not easy to assembling and maintenance.
Summary of the invention: the object of the present invention is to provide a kind of accurate tapered sleeve bearing shell processing method, its stable manufacturing process performance is good, and reliability is high; Be convenient to guarantee the bearing shell precision, certain elasticity is arranged, bearing shell and gap of main reinforcement can be adjusted; Be convenient to assembling and maintenance, workable.
Formation of the present invention: its processing method is: rough turn male cone (strobilus masculinus), both ends of the surface, endoporus, and recrystallization annealing is handled, finish turning male cone (strobilus masculinus), endoporus, mill both ends of the surface; The corase grind endoporus stays mill surplus 0.50mm car male cone (strobilus masculinus) and annular groove, stays mill surplus 0.5mm, roughly grinds 1: 7.5 male cone (strobilus masculinus); Stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove, processing fuel feed hole, stabilizing annealing; Accurate mill both ends of the surface are ground both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus); Male cone (strobilus masculinus) smear test contact rate >=80%, the relief grinding annular groove, model pincers worker refine profile is removed the oxide skin that the line cutting produces.
Recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.
Compared with prior art; The present invention is through the characteristic of conscientiously studying part and the particularity of instructions for use and tin bronze alloys material, when designing and manufacturing technique, according to this design of part and operating characteristic; For reducing machining stress and obtaining certain elastic properties of materials and stability; Specially after roughing, arranged the heat treatment step stress relief annealing one, eliminated part casting and roughing stress, made part obtain stability preferably with this. after part is embarked on journey; Arranged stabilizing annealing before the Precision Machining one; Make part further eliminate residual stress, and make part obtain certain elasticity. arranged three roads corase grind manufacturing procedure for obtaining good machining accuracy simultaneously, three roads correct grinding manufacturing procedure realizes the technological principle that thick fine finishining is separately carried out preferably.
In order to obtain the uniformity at bearing shell minimum wall thickness (MINI W.) place, reduce the machining stress that machining is brought, reduce distortion, the formation of bearing shell dynamic pressure oil pocket when helping assembling.Adopt the axial circular arc oil-break of 4-R5.5 groove in twice threading processing bearing shell profile of advanced digital control wire-electrode cutting technology and the hole, and designed special-purpose bearing shell positioning process equipment, make the position steady quality of being processed, the form and position tolerance precision is high, good stability.Overcome traditional processing the process of axial circular arc oil-break groove and cause that part quality is unstable, the human factor influence is big, processing back residual stress is bigger with universal milling machine metal cutting processing profile, slotting machine, bearing shell is prone to the defective of irregular distortion.For obtaining good positioning reference plane; Datum level is ground and the polishes refine of twice instrument pincers worker operation has been arranged on the line cutting processing of refining surface, adopt when finish grinding male cone (strobilus masculinus) again structure advanced can rise to grind with the high plastics of positioning accuracy use axle; Overcome common mill and fit clearance has been arranged with axle bearing shell and axle; The shortcoming of positioning accuracy difference, part location clamping force is uncontrollable, thereby has improved the repetitive positioning accuracy of processing parts.
Stable manufacturing process performance of the present invention is good, and reliability is high, is convenient to guarantee the bearing shell precision, and certain elasticity is arranged, and bearing shell and gap of main reinforcement can be adjusted, and is convenient to assembling and maintenance, and is workable.
Description of drawings:
Fig. 1 is accurate tapered sleeve bearing shell structural representation;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is a process chart.
Among the figure 1, fabrication hole, 2, the oil-break groove, 3, fuel feed hole, 4, male cone (strobilus masculinus), 5, annular groove.
The specific embodiment:
Referring to Fig. 1-3, formation of the present invention: its processing method is: rough turn male cone (strobilus masculinus) 4, both ends of the surface, endoporus, and recrystallization annealing is handled, finish turning male cone (strobilus masculinus), endoporus, mill both ends of the surface; The corase grind endoporus stays mill surplus 0.50mm, and car male cone (strobilus masculinus) 4 and annular groove 5 stay mill surplus 0.5mm, roughly grind 1: 7.5 male cone (strobilus masculinus) 4; Stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove 2, processing fuel feed hole 3, stabilizing annealing; Accurate mill both ends of the surface are ground both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus) 4; Male cone (strobilus masculinus) smear test contact rate >=80%, relief grinding annular groove 5, model pincers worker refine profile is removed the oxide skin that the line cutting produces.
Recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.
Claims (2)
1. accurate tapered sleeve bearing shell processing method, it is characterized in that: its processing method is: rough turn male cone (strobilus masculinus) (4), both ends of the surface, endoporus, recrystallization annealing is handled, finish turning male cone (strobilus masculinus), endoporus, mill both ends of the surface; Corase grind endoporus, endoporus stay mill surplus 0.50mm, and car male cone (strobilus masculinus) (4) and annular groove (5) stay mill surplus 0.5mm, roughly grind 1: 7.5 male cone (strobilus masculinus) (4); Stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove (2), processing fuel feed hole (3), stabilizing annealing; Accurate mill both ends of the surface are ground both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus) (4); Male cone (strobilus masculinus) smear test contact rate >=80%, relief grinding annular groove (5), model pincers worker refine profile is removed the oxide skin that the line cutting produces.
2. accurate tapered sleeve bearing shell processing method according to claim 1 is characterized in that: recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105935498A CN102091912B (en) | 2010-12-17 | 2010-12-17 | Processing method of precise taper sleeve bearing bush |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105935498A CN102091912B (en) | 2010-12-17 | 2010-12-17 | Processing method of precise taper sleeve bearing bush |
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| CN102091912A CN102091912A (en) | 2011-06-15 |
| CN102091912B true CN102091912B (en) | 2012-08-08 |
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| CN2010105935498A Active CN102091912B (en) | 2010-12-17 | 2010-12-17 | Processing method of precise taper sleeve bearing bush |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270800A (en) * | 2019-07-04 | 2019-09-24 | 哈尔滨汽轮机厂有限责任公司 | The processing method that a kind of whirlpool increases bearing |
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| CN103273277B (en) * | 2013-06-14 | 2015-10-14 | 沈阳飞机工业（集团）有限公司 | A kind of processing method of adjustable ring part |
| CN103464981A (en) * | 2013-09-16 | 2013-12-25 | 南车戚墅堰机车有限公司 | Novel thin-walled taper sleeve machining method |
| CN103495844A (en) * | 2013-10-14 | 2014-01-08 | 南车戚墅堰机车有限公司 | Machining technology for high-precision outer conical surface thin wall sleeve |
| CN103586644B (en) * | 2013-11-25 | 2016-08-17 | 江苏星河阀门有限公司 | The processing method of outer conical precision thin-wall part |
| CN106670750A (en) * | 2017-02-13 | 2017-05-17 | 江苏亿鑫齿轮制造有限公司 | Manufacturing process of 3.5 cun grinding wheel installation receiving disc of gear grinding machine |
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| CN112935938B (en) * | 2021-02-05 | 2023-02-28 | 一重集团(黑龙江)重工有限公司 | Method for improving arc contact rate |
| CN113245794A (en) * | 2021-05-30 | 2021-08-13 | 东风汽车车轮随州有限公司 | Gapless elastic bearing bush of rolling die and machining method thereof |
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| CN101579804A (en) * | 2009-06-04 | 2009-11-18 | 航天材料及工艺研究所 | Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line |
| CN101817141A (en) * | 2010-04-22 | 2010-09-01 | 江苏迪邦三星轴承有限公司 | Processing technique for bearing of megawatt wind power speed increasing gear box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1999024631A1 (en) * | 1997-11-10 | 1999-05-20 | Toto Ltd. | Forged brass product and cut brass product having high corrosion resistance and method of manufacturing the same |
| US20040123461A1 (en) * | 2002-12-31 | 2004-07-01 | Chih-Ching Hsien | Method for making a gear with 90-180 teeth |
| KR100685048B1 (en) * | 2005-12-26 | 2007-02-20 | 주식회사 포스코 | Method of manufacturing grooved roll for rough rolling |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579804A (en) * | 2009-06-04 | 2009-11-18 | 航天材料及工艺研究所 | Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line |
| CN101817141A (en) * | 2010-04-22 | 2010-09-01 | 江苏迪邦三星轴承有限公司 | Processing technique for bearing of megawatt wind power speed increasing gear box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270800A (en) * | 2019-07-04 | 2019-09-24 | 哈尔滨汽轮机厂有限责任公司 | The processing method that a kind of whirlpool increases bearing |
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| CN102091912A (en) | 2011-06-15 |
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