CN104438479A - Method for correcting and adjusting deformation of locomotive crankshaft - Google Patents
Method for correcting and adjusting deformation of locomotive crankshaft Download PDFInfo
- Publication number
- CN104438479A CN104438479A CN201410584708.6A CN201410584708A CN104438479A CN 104438479 A CN104438479 A CN 104438479A CN 201410584708 A CN201410584708 A CN 201410584708A CN 104438479 A CN104438479 A CN 104438479A
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- CN
- China
- Prior art keywords
- bent axle
- crankshaft
- voussoir
- gag
- deformation
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to the technical field of internal combustion locomotives, in particular to a method for correcting and adjusting deformation of a locomotive crankshaft. The method comprises the following steps of tool preparation, crankshaft mounting, error measurement, tool locating, correcting and adjusting, stress relieving and acceptance check. Plug iron is supported on a connecting rod neck gear face at the lowest deformation point, a wedge block is beaten in the position between two gears of a connecting rod neck through external force, the crankshaft is made to generate reverse deformation, and then placed in a furnace for stress relieving, stress generated by the external force is eliminated or partially eliminated, the crankshaft cannot be completely rebounded to the original position after the stress is relieved and the wedge block is removed, and the aim of straightening is achieved.
Description
Technical field
The present invention relates to technical field of diesel locomotive, especially a kind of locomotive crankshaft deformation correcting and regulating method.
Background technology
Locomotive bent axle after modified, destressing and nitrogenize due to internal stress redistribution, balance in the material of bent axle, forging, machining and heat treatment destressing and nitridation process, often cause the distortion of bent axle considerably beyond technical requirement value, cause bent axle subsequent handling to process.
Summary of the invention
In order to overcome existing locomotive bent axle, that larger distortion easily occurs is overproof, cannot adjust in school, affects the deficiency of following process, the invention provides a kind of locomotive crankshaft deformation correcting and regulating method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of locomotive crankshaft deformation correcting and regulating method, comprises the following steps: instrument preparation → crankshaft installed → error measure → tool locating → school tune → destressing → examination.
According to another embodiment of the invention, comprise instrument preparation process further and comprise: select measurement bay, dial gauge and 18 pounds of iron hammers, the gag of self-control two panels " L " shape and a slice voussoir.
According to another embodiment of the invention, comprised crankshaft installed step further to comprise: be placed on the V-type support of detection platform need the bent axle of alignment, to the bent axle inspection after nitrogenize, the trunnion at modified for the bent axle two ends afterwards or after destressing is placed on measurement bay.
According to another embodiment of the invention, comprise error measure step further and comprise: turning crankshaft, while measure radial beat eccentricity and the orientation of each trunnion with dial gauge, and note down, determine the trunnion that radial beat eccentricity exceeds standard and direction.
According to another embodiment of the invention, comprise tool locating step further and comprise: gag and voussoir are loaded in the connecting rod neck needing school to adjust, gag is embedded in two ends, and voussoir is inserted between two panels gag.
According to another embodiment of the invention, comprise school pacing further suddenly to comprise: adopt 18 pounds of iron hammers to hit voussoir, make to carve block while moving downward, produce horizontal thrust, this thrust makes connecting rod neck two grades stressed, make bent axle produce reversal deformation, and upper detection platform detects anti-deformation, hammering and detection repeatedly, until control the anti-deformation of bent axle within 2-4 times of original distortion amount.
According to another embodiment of the invention, comprise destressing step further and comprise: related for bent axle gag and voussoir are entered stove and carries out destressing heat treatment, the internal stress eliminated or partly eliminate bent axle to be subject to external force and produce.
According to another embodiment of the invention, comprise examination step further to comprise: after destressing completes, bent axle is hung out from stove, removal gag and voussoir, bent axle can not be returned to original position completely, thus reaches the object adjusted in school, finally measure beating of each shelves, if maximum jitter amount is within technical requirement scope, then bent axle school is adjusted and is terminated, otherwise repeats above step.
The invention has the beneficial effects as follows, gag is utilized to be supported on distortion connecting rod neck shelves face, minimum point place, thrown between connecting rod neck two grades by external force carve block, bent axle is made to produce reversal deformation, put into stove destressing again, eliminate or partly eliminate the stress produced by external force, make it after destressing, laying down and carve block, bent axle can not rebound original position completely, and reaches the object of alignment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is that schematic diagram is adjusted in school of the present invention.
1. gags, 2. voussoir in figure.
Detailed description of the invention
If Fig. 1 is that schematic diagram is adjusted in school of the present invention, a kind of locomotive crankshaft deformation correcting and regulating method, comprises the following steps: instrument preparation → crankshaft installed → error measure → tool locating → school tune → destressing → examination.
Instrument preparation process comprises: select measurement bay, dial gauge and 18 pounds of iron hammers, the gag 1 of self-control two panels " L " shape and a slice voussoir 2.
Crankshaft installed step comprises: needing the bent axle of alignment to be placed on the V-type support of detection platform, to the bent axle inspection after nitrogenize, is placed on measurement bay by the trunnion at modified for the bent axle two ends afterwards or after destressing.
Error measure step comprises: turning crankshaft, while measure radial beat eccentricity and the orientation of each trunnion with dial gauge, and notes down, determines the trunnion that radial beat eccentricity exceeds standard and direction.
Tool locating step comprises: gag 1 and voussoir 2 are loaded in the connecting rod neck needing school to adjust, gag 1 is embedded in two ends, and voussoir 2 is inserted between two panels gag 1.
School pacing comprises suddenly: adopt 18 pounds of iron hammers to hit voussoir 2, make to carve block 2 while moving downward, produce horizontal thrust, this thrust makes connecting rod neck two grades stressed, bent axle is made to produce reversal deformation, and upper detection platform detects anti-deformation, repeatedly hammering and detection, until the anti-deformation of bent axle is controlled within 2-4 times of original distortion amount.
Destressing step comprises: related for bent axle gag 1 and voussoir 2 are entered stove and carries out destressing heat treatment, the internal stress eliminated or partly eliminate bent axle to be subject to external force and produce.
Examination step comprises: after destressing completes, bent axle is hung out from stove, removal gag 1 and voussoir 2, bent axle can not be returned to original position completely, thus reach the object adjusted in school, finally measure beating of each shelves, if maximum jitter amount is within technical requirement scope, then bent axle school is adjusted and is terminated, otherwise repeats above step.
Embodiment: a kind of locomotive crankshaft deformation correcting and regulating method, comprises the following steps: instrument preparation → crankshaft installed → error measure → tool locating → school tune → destressing → examination.
Instrument preparation process comprises: select measurement bay, dial gauge and 18 pounds of iron hammers, the gag 1 of self-control two panels " L " shape and a slice voussoir 2.
Crankshaft installed step comprises: needing the bent axle of alignment to be placed on the V-type support of detection platform, to the bent axle inspection after nitrogenize, is placed on measurement bay by the trunnion at modified for the bent axle two ends afterwards or after destressing.
Error measure step comprises: turning crankshaft, while measure radial beat eccentricity and the orientation of each trunnion with dial gauge, and notes down, determines the trunnion that radial beat eccentricity exceeds standard and direction.
Tool locating step comprises: gag 1 and voussoir 2 are loaded in the connecting rod neck needing school to adjust, gag 1 is embedded in two ends, and voussoir 2 is inserted between two panels gag 1.
School pacing comprises suddenly: adopt 18 pounds of iron hammers to hit voussoir 2, make to carve block 2 while moving downward, produce horizontal thrust, this thrust makes connecting rod neck two grades stressed, bent axle is made to produce reversal deformation, and upper detection platform detects anti-deformation, repeatedly hammering and detection, until the anti-deformation of bent axle to be controlled 3 times in original distortion amount.
Destressing step comprises: related for bent axle gag 1 and voussoir 2 are entered stove and carries out destressing heat treatment, the internal stress eliminated or partly eliminate bent axle to be subject to external force and produce.
Examination step comprises: after destressing completes, bent axle is hung out from stove, removal gag 1 and voussoir 2, bent axle can not be returned to original position completely, thus reach the object adjusted in school, finally measure beating of each shelves, if maximum jitter amount is within technical requirement scope, then bent axle school is adjusted and is terminated, otherwise repeats above step.
Claims (8)
1. a locomotive crankshaft deformation correcting and regulating method, is characterized in that, comprises the following steps: instrument preparation → crankshaft installed → error measure → tool locating → school tune → destressing → examination.
2. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, instrument preparation process comprises: select measurement bay, dial gauge and 18 pounds of iron hammers, the gag (1) of self-control two panels " L " shape and a slice voussoir (2).
3. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, crankshaft installed step comprises: be placed on need the bent axle of alignment on the V-type support of detection platform, to the bent axle inspection after nitrogenize, the trunnion at modified for the bent axle two ends afterwards or after destressing is placed on measurement bay.
4. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, error measure step comprises: turning crankshaft, while measure radial beat eccentricity and the orientation of each trunnion with dial gauge, and note down, determine the trunnion that radial beat eccentricity exceeds standard and direction.
5. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, tool locating step comprises: gag (1) and voussoir (2) are loaded in the connecting rod neck needing school to adjust, gag (1) is embedded in two ends, and voussoir (2) is inserted between two panels gag (1).
6. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, school pacing comprises suddenly: adopt 18 pounds of iron hammers to hit voussoir (2), make to carve block (2) while moving downward, produce horizontal thrust, this thrust makes connecting rod neck two grades stressed, bent axle is made to produce reversal deformation, and upper detection platform detects anti-deformation, repeatedly hammering and detection, until the anti-deformation of bent axle is controlled within 2-4 times of original distortion amount.
7. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, destressing step comprises: related for bent axle gag (1) and voussoir (2) are entered stove and carries out destressing heat treatment, the internal stress eliminated or partly eliminate bent axle to be subject to external force and produce.
8. locomotive crankshaft deformation correcting and regulating method according to claim 1, it is characterized in that, examination step comprises: after destressing completes, from stove, hang out bent axle, removal gag (1) and voussoir (2), bent axle can not be returned to original position completely, thus reach the object adjusted in school, finally measure beating of each shelves, if maximum jitter amount is within technical requirement scope, then bent axle school is adjusted and is terminated, otherwise repeats above step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584708.6A CN104438479A (en) | 2014-10-28 | 2014-10-28 | Method for correcting and adjusting deformation of locomotive crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584708.6A CN104438479A (en) | 2014-10-28 | 2014-10-28 | Method for correcting and adjusting deformation of locomotive crankshaft |
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| CN104438479A true CN104438479A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410584708.6A Pending CN104438479A (en) | 2014-10-28 | 2014-10-28 | Method for correcting and adjusting deformation of locomotive crankshaft |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042387A (en) * | 2017-04-12 | 2017-08-15 | 大连辽南船厂 | Diesel engine connecting bar restorative procedure |
| CN107695138A (en) * | 2017-09-20 | 2018-02-16 | 上海理工大学 | A kind of apparatus for correcting and method of crankshaft torsion deformation |
| JP2018053962A (en) * | 2016-09-27 | 2018-04-05 | いすゞ自動車株式会社 | Manufacturing method for crank shaft |
| CN108067533A (en) * | 2016-11-16 | 2018-05-25 | J&H压力有限公司 | Bent axle manufacture device |
| CN109848255A (en) * | 2019-02-20 | 2019-06-07 | 中国兵器工业第五九研究所 | A kind of straightening method of big L/D ratio complexity crankshaft |
| CN110293153A (en) * | 2019-05-30 | 2019-10-01 | 荆州环球汽车零部件制造有限公司 | The accurate aligning method of appearance color consistency is kept after a kind of crankshaft ionic nitriding |
| CN111809138A (en) * | 2020-06-28 | 2020-10-23 | 河南柴油机重工有限责任公司 | Tool for increasing rigidity during crankshaft gas nitriding and using method |
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| CN1410181A (en) * | 2002-11-08 | 2003-04-16 | 中国第一汽车集团大连柴油机厂 | Correcting unit for engine crank shaft deformation and correcting method |
| JP2008535665A (en) * | 2005-04-07 | 2008-09-04 | インターナショナル エンジン インテレクチュアル プロパティー カンパニー リミテッド ライアビリティ カンパニー | How to correct the eccentric shaft |
| CN101337243A (en) * | 2008-08-09 | 2009-01-07 | 唐山轨道交通装备有限责任公司 | Diesel engine crank axle alignment method at normal temperature |
| CN101966538A (en) * | 2010-10-29 | 2011-02-09 | 南车资阳机车有限公司 | Manual straightening device of engine crankshaft |
| CN102198457A (en) * | 2010-03-26 | 2011-09-28 | 广西玉柴机器股份有限公司 | Method and tool for straightening bending deformation of crankshaft |
| CN103191961A (en) * | 2013-05-02 | 2013-07-10 | 南车戚墅堰机车有限公司 | Knocking and straightening method for steel crankshaft nitriding deformation |
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2014
- 2014-10-28 CN CN201410584708.6A patent/CN104438479A/en active Pending
Patent Citations (6)
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| CN1410181A (en) * | 2002-11-08 | 2003-04-16 | 中国第一汽车集团大连柴油机厂 | Correcting unit for engine crank shaft deformation and correcting method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018053962A (en) * | 2016-09-27 | 2018-04-05 | いすゞ自動車株式会社 | Manufacturing method for crank shaft |
| CN108067533A (en) * | 2016-11-16 | 2018-05-25 | J&H压力有限公司 | Bent axle manufacture device |
| CN108067533B (en) * | 2016-11-16 | 2019-08-27 | J&H压力有限公司 | Crankshaft manufacturing device |
| CN107042387A (en) * | 2017-04-12 | 2017-08-15 | 大连辽南船厂 | Diesel engine connecting bar restorative procedure |
| CN107695138A (en) * | 2017-09-20 | 2018-02-16 | 上海理工大学 | A kind of apparatus for correcting and method of crankshaft torsion deformation |
| CN107695138B (en) * | 2017-09-20 | 2019-04-30 | 上海理工大学 | A kind of apparatus for correcting and method of crankshaft torsion deformation |
| CN109848255A (en) * | 2019-02-20 | 2019-06-07 | 中国兵器工业第五九研究所 | A kind of straightening method of big L/D ratio complexity crankshaft |
| CN109848255B (en) * | 2019-02-20 | 2020-10-13 | 中国兵器工业第五九研究所 | Method for correcting complex crankshaft with large length-diameter ratio |
| CN110293153A (en) * | 2019-05-30 | 2019-10-01 | 荆州环球汽车零部件制造有限公司 | The accurate aligning method of appearance color consistency is kept after a kind of crankshaft ionic nitriding |
| CN110293153B (en) * | 2019-05-30 | 2020-06-09 | 荆州环球汽车零部件制造有限公司 | Accurate straightening method for keeping appearance color consistency after crankshaft ion nitriding |
| CN111809138A (en) * | 2020-06-28 | 2020-10-23 | 河南柴油机重工有限责任公司 | Tool for increasing rigidity during crankshaft gas nitriding and using method |
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| C06 | Publication | ||
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Application publication date: 20150325 |