CN106863035A - The high ferro bearing method for machining bore of wear-resistant pressure-resistant seal - Google Patents
The high ferro bearing method for machining bore of wear-resistant pressure-resistant seal Download PDFInfo
- Publication number
- CN106863035A CN106863035A CN201611242005.0A CN201611242005A CN106863035A CN 106863035 A CN106863035 A CN 106863035A CN 201611242005 A CN201611242005 A CN 201611242005A CN 106863035 A CN106863035 A CN 106863035A
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- China
- Prior art keywords
- endoporus
- grinding
- resistant
- wear
- high ferro
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/185—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for internal surfaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of high ferro bearing method for machining bore of wear-resistant pressure-resistant seal, including corase grind endoporus and fine grinding endoporus, processed using electric magnetic no-core grinding machine when the corase grind endoporus and fine grinding endoporus, balance of 0.04 0.05mm after corase grind endoporus, workpiece rotational frequency when the corase grind endoporus and fine grinding inner hole grinding is 350 355rpm, and guide wheel axis is 8 12 ° with the misalignment angle of grinding wheel bearing.Through the above way, the present invention can improve the bore area crudy of high ferro bearing wear-resistant pressure-resistant seal, significantly improve fatigue strength, increase reliability, increase the service life.
Description
Technical field
The present invention relates to field of bearings, more particularly to a kind of high ferro bearing interior hole machined side of wear-resistant pressure-resistant seal
Method.
Background technology
With economic fast development, automobile, engineering machinery etc. are used widely, and it is big that China has become world's manufacture
State, but overall technology falls behind relatively, particularly in power train, presently, there are oil sealing oil leak, bearing damage, gear and beats tooth or make an uproar
The problems such as sound.Chinese bearing industry association secretary-general Wang Quan is represented：During 12, the keyword of domestic bearing industry will be around
Autonomous innovation, core technology of tackling key problems, to realize industrial upgrading, substitutes import.At present in motor-car of the Chinese speed per hour more than 160 kilometers
Bearing used also needs 100% import, and Chinese domestic high ferro bearing is not realized really also supporting.Although China's bearing industry is in recent years
Quickly grow, but be concentrated mainly on plain bearing field, compared with world's bearing is made the country prosperous, China also has larger difference
Away from, it is mainly manifested in that high accuracy, the ratio of high technology content and high value added product be relatively low, product stability is poor, reliability is low,
Short life.Reaction is exactly that our demands to Bearing with high properties will meet by import commercially, inseparable to bearing
Supporting seal it is also proposed requirement higher.
Bullet train requirement can run under very strict condition of work, particularly in the condition that radially, axially, runs at high speed
Under, it is desirable to high ferro locomotive seal must high pressure resistant and rub resistance, extension main frame No leakage normal working hours and maintenance replacing
Cycle, and its function must be kept with reliability to greatest extent.Such as：The CTBU series high ferro axles of Aktiebolaget SKF's research and development in 2006
A kind of innovatively built-in Sealing Method is held, space is greatlyd save, due to improving the insulation blocking of pollution, is extended and is used
Life-span, axle temperature reduces by 20 DEG C or so, and the pollution to preventing water and dust is especially effective.Domestic high-speed iron motor car wheel dynamic bearing is close
Sealing assembly generally uses foreign brand name product all the time, and the dependency degree to external product is very high, but external product is generally deposited
Expensive, hand over the phase long, service is slow, many drawbacks such as inconvenient maintenance, from constraining the sustainable of China's high ferro locomotive significantly
The development of property.
The content of the invention
The present invention solves the technical problem of：In view of the shortcomings of the prior art, there is provided a kind of high ferro bearing is with wear-resisting
The method for machining bore of compressive sealed part, improves the bore area crudy of high ferro bearing wear-resistant pressure-resistant seal, significantly
Fatigue strength is improved, increases reliability, increased the service life.
In order to solve the above technical problems, one aspect of the present invention is：A kind of high ferro bearing is provided with wear-resisting
The method for machining bore of compressive sealed part, including corase grind endoporus and fine grinding endoporus, use when the corase grind endoporus and fine grinding endoporus
Electric magnetic no-core grinding machine is processed, balance of 0.04-0.05mm after corase grind endoporus, the work when corase grind endoporus and fine grinding inner hole grinding
Part rotating speed is 350-355rpm, and guide wheel axis is 8-12 ° with the misalignment angle of grinding wheel bearing.
In a preferred embodiment of the present invention, demagnetizer, the demagnetization dress are connected with the electric magnetic no-core grinding machine
Put the remanent magnetism after demagnetization and be less than 0.2mT.
In a preferred embodiment of the present invention, the emery wheel when corase grind endoporus and fine grinding endoporus is aluminum oxide or CBN
Abrasive grinding wheel.
In a preferred embodiment of the present invention, the roughness of endoporus of the high ferro bearing with wear-resistant pressure-resistant seal is small
In equal to 0.15 μm.
In a preferred embodiment of the present invention, the grinding speed when corase grind endoporus and fine grinding inner hole grinding is
20m/s。
The beneficial effects of the invention are as follows：By optimizing the grinding process of high ferro bearing wear-resistant pressure-resistant seal endoporus, choosing
Workpiece rotational frequency when taking rational process equipment, emery wheel material and linear velocity, being ground etc., improves high ferro bearing close with wear-resistant pressure-resistant
The bore area crudy of sealing, significantly improves fatigue strength, increases reliability, increases the service life.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly being defined so as to be made to protection scope of the present invention.
The embodiment of the present invention includes：
A kind of high ferro bearing method for machining bore of wear-resistant pressure-resistant seal, the high ferro bearing wear-resistant pressure-resistant seal
Material is SKF3 bearing steels, including uses electric magnetic no-core when corase grind endoporus and fine grinding endoporus, the corase grind endoporus and fine grinding endoporus
Grinding machine is processed, the balance of 0.04-0.05mm of endoporus after corase grind endoporus, and the workpiece when corase grind endoporus and fine grinding inner hole grinding turns
Speed is 350-355rpm, and preferably 353 rpm, guide wheel axis is 8-12 °, preferably 10 ° with the misalignment angle of grinding wheel bearing.
Demagnetizer is connected with the electric magnetic no-core grinding machine, the remanent magnetism after the demagnetizer demagnetization is less than 0.2mT.
Emery wheel when the corase grind endoporus and fine grinding endoporus is aluminum oxide or CBN abrasive grinding wheels, with high rigidity, high-ductility
Property, the features such as cutting power is strong, machined surface quality can be improved, and be remarkably improved workpiece fatigue strength.
The roughness of endoporus of the high ferro bearing with wear-resistant pressure-resistant seal is less than or equal to 0.15 μm.
Grinding speed when the corase grind endoporus and fine grinding inner hole grinding is 20m/s, reduces grinding crack and burn.
Present invention is disclosed a kind of high ferro bearing method for machining bore of wear-resistant pressure-resistant seal, by optimizing high ferro axle
The grinding process for using wear-resistant pressure-resistant seal endoporus is held, when choosing rational process equipment, emery wheel material and linear velocity, being ground
Workpiece rotational frequency etc., improves the high ferro bearing bore area crudy of wear-resistant pressure-resistant seal, significantly improves fatigue strength, increases
Plus reliability, increase the service life.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (5)
1. a kind of high ferro bearing method for machining bore of wear-resistant pressure-resistant seal, including corase grind endoporus and fine grinding endoporus, it is special
Levy and be, processed using electric magnetic no-core grinding machine when the corase grind endoporus and fine grinding endoporus, balance of 0.04- after corase grind endoporus
Workpiece rotational frequency when 0.05mm, the corase grind endoporus and fine grinding inner hole grinding is 350-355rpm, guide wheel axis and grinding wheel bearing
Misalignment angle be 8-12 °.
2. the high ferro bearing according to claim 1 method for machining bore of wear-resistant pressure-resistant seal, it is characterised in that institute
State and demagnetizer is connected with electric magnetic no-core grinding machine, the remanent magnetism after the demagnetizer demagnetization is less than 0.2mT.
3. the high ferro bearing according to claim 1 method for machining bore of wear-resistant pressure-resistant seal, it is characterised in that institute
Emery wheel when stating corase grind endoporus and fine grinding endoporus is aluminum oxide or CBN abrasive grinding wheels.
4. the high ferro bearing according to claim 1 method for machining bore of wear-resistant pressure-resistant seal, it is characterised in that institute
The roughness for stating the endoporus of high ferro bearing wear-resistant pressure-resistant seal is less than or equal to 0.15 μm.
5. the high ferro bearing according to claim 1 method for machining bore of wear-resistant pressure-resistant seal, it is characterised in that institute
Grinding speed when stating corase grind endoporus and fine grinding inner hole grinding is 20m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242005.0A CN106863035A (en) | 2016-12-29 | 2016-12-29 | The high ferro bearing method for machining bore of wear-resistant pressure-resistant seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242005.0A CN106863035A (en) | 2016-12-29 | 2016-12-29 | The high ferro bearing method for machining bore of wear-resistant pressure-resistant seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106863035A true CN106863035A (en) | 2017-06-20 |
Family
ID=59164950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611242005.0A Pending CN106863035A (en) | 2016-12-29 | 2016-12-29 | The high ferro bearing method for machining bore of wear-resistant pressure-resistant seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106863035A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631615A (en) * | 2004-12-10 | 2005-06-29 | 中原工学院 | Process for grinding tumbler bearing bore and its specified clamp apparatus |
| JP3918894B2 (en) * | 1998-10-30 | 2007-05-23 | 日本精工株式会社 | Rotating processing apparatus and rotating processing method for ring-shaped workpiece |
| CN102179736A (en) * | 2011-04-08 | 2011-09-14 | 大连沃飞亚装备制造有限公司 | Internal grinding machine for bearing ring |
| CN203171434U (en) * | 2013-03-21 | 2013-09-04 | 无锡市利钧轴承有限公司 | Clamp for grinding inner hole of eccentric sleeve |
| CN103921212A (en) * | 2014-04-28 | 2014-07-16 | 洛阳轴研科技股份有限公司 | Method for grinding ball track of large thin-wall bearing inner ring |
| CN104325401A (en) * | 2014-11-27 | 2015-02-04 | 无锡市明鑫数控磨床有限公司 | Electromagnetic centerless clamp used by vertical type grinding machine |
-
2016
- 2016-12-29 CN CN201611242005.0A patent/CN106863035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3918894B2 (en) * | 1998-10-30 | 2007-05-23 | 日本精工株式会社 | Rotating processing apparatus and rotating processing method for ring-shaped workpiece |
| CN1631615A (en) * | 2004-12-10 | 2005-06-29 | 中原工学院 | Process for grinding tumbler bearing bore and its specified clamp apparatus |
| CN102179736A (en) * | 2011-04-08 | 2011-09-14 | 大连沃飞亚装备制造有限公司 | Internal grinding machine for bearing ring |
| CN203171434U (en) * | 2013-03-21 | 2013-09-04 | 无锡市利钧轴承有限公司 | Clamp for grinding inner hole of eccentric sleeve |
| CN103921212A (en) * | 2014-04-28 | 2014-07-16 | 洛阳轴研科技股份有限公司 | Method for grinding ball track of large thin-wall bearing inner ring |
| CN104325401A (en) * | 2014-11-27 | 2015-02-04 | 无锡市明鑫数控磨床有限公司 | Electromagnetic centerless clamp used by vertical type grinding machine |
Non-Patent Citations (2)
| Title |
|---|
| 李春生等: "电磁无心夹具的原理及参数调整", 《机械工程师》 * |
| 金捷: "《机械加工技能训练》", 31 October 2009 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |