CN102554553B - Small-end journal round corner rolling device for crankshaft - Google Patents
Small-end journal round corner rolling device for crankshaft Download PDFInfo
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- CN102554553B CN102554553B CN201210042664.5A CN201210042664A CN102554553B CN 102554553 B CN102554553 B CN 102554553B CN 201210042664 A CN201210042664 A CN 201210042664A CN 102554553 B CN102554553 B CN 102554553B
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- roller
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- crankshaft
- end journal
- round corner
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Abstract
The invention discloses a small-end journal round corner rolling device for a crankshaft. The invention has the technical scheme that the small-end journal round corner rolling device for the crankshaft comprises a rolling body and a support roller sleeved on the small-end journal of the crankshaft; a mandrel is arranged on the rolling body; a guide roller is arranged on the mandrel through a needle roller bearing; the rolling body is provided with a roller retaining seat; a large roller and a small roller are arranged between the guide roller and the roller retaining seat; the lower end of the large roller corresponds to the position of a round corner to be rolled; a balancing sleeve is sleeved on the small-end journal of the crankshaft; the lower end of the small roller presses against the support roller and the balancing sleeve; and the small roller, the support roller and the balancing roller radially and axially limit the small-end journal of the crankshaft. The invention has the beneficial effects that the small-end journal round corner rolling device has simple structure and rational design; the problem of difficulty in the round corner rolling of the small-end journal of the crankshaft can be effectively solved; and with the adoption of the technical scheme, the rolled crankshaft is slightly deformed, the rolling effect is good, and the machining quality of the product and labor productivity are improved.
Description
Technical field
The present invention is a kind of rolling device for fillet of small-head shaft neck of crankshaft.
Background technology
Bent axle is one of strength member in engine, and its mechanical performance directly determines the life-span of engine.The form that bent axle lost efficacy generally has two kinds of journal wear and fatigue fractures.For fatigue fracture, generally adopt the mode of axle journal fillet rolling to improve its fatigue strength.Being applied to the milled head of round corner rolling process, is generally two pair of rollers bilateral fillet roll extrusion simultaneously that size is identical, and its axial force is cancelled out each other.But the bent axle that needs roll extrusion for microcephaly's axle journal fillet, owing to only having a fillet, roll extrusion cannot realize balance, because general bent axle microcephaly length is obviously greater than all the other axle journals, as adopted microcephaly's end to increase the method for auxiliary fillet, milled head weight obviously increases, distortion in rolling amount is very large, the defect such as often cause that bent axle is scrapped, therefore, bent axle small-end journal round corner rolling implements more difficult.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of simple in structure, reasonable in design, can effectively solve the problem of bent axle microcephaly axle journal roll extrusion fillet difficulty, adopt the technical program, little through the crankshaft deformation of roll extrusion, roll extrusion is effective, has improved product processing quality and labor productivity.
The present invention realizes by following technical measures: a kind of rolling device for fillet of small-head shaft neck of crankshaft, comprise roll extrusion body, be sleeved on the supporting roller on bent axle microcephaly axle journal, on roll extrusion body, axle is installed, in axle, by needle bearing, guide wheel is installed, described roll extrusion body keeps seat with roller, described guide wheel middle part is provided with roller location shoulder, the diameter of the shoulder inner side, roller location of described guide wheel is less than the diameter in outside, inner side and the roller of described roller location shoulder keep between seat, outside and the roller of roller location shoulder keep being separately installed with big roller and trundle between seat, described big roller lower end with treat that roll extrusion fillet position is corresponding, the balance set that has internal diameter to equate with bent axle microcephaly axle journal external diameter, the medial extremity of described balance set is provided with positioning ring groove, the lower end of described trundle is positioned at positioning ring groove, described bent axle microcephaly axle journal passes through supporting roller, trundle, balance set axially and radial location.
Concrete feature of the present invention also has, and above-mentioned balance set outboard end is provided with the top locating hole of lathe.
Beneficial effect of the present invention is: adopt balance set and the processing of big or small roller type milled head, effectively solved the shortcoming that milled head volume is large, weight is large, distortion in rolling is large in the past, product processing quality and labor productivity have been improved, adopt roll extrusion in this way, can determine flexibly the width of milled head, the diameter of roller, make it reach optimised process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the right view of Fig. 1.
In figure, 1, bent axle, 2, roller keeps seat, 3, guide wheel, 4, roll extrusion body, 5, axle, 6, needle bearing, 7, trundle, 8, balance set, 9, lathe is top, 10, support needle roller, 11, big roller, 12, roller location shoulder, 13, positioning ring groove.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by a specific embodiment, this programme is set forth.
As shown in drawings, a kind of rolling device for fillet of small-head shaft neck of crankshaft, comprise roll extrusion body 4, be sleeved on the supporting roller 10 on bent axle microcephaly axle journal, axle 5 is installed on roll extrusion body 4, in axle 5, by needle bearing 6, guide wheel 3 is installed, described roll extrusion body 4 keeps seat 2 with roller, described guide wheel 3 middle parts are provided with roller location shoulder 12, the diameter of shoulder 12 inner sides, roller location of described guide wheel 3 is less than the diameter in outside, inner side and the roller of described roller location shoulder 12 keep between seat 2, outside and the roller of roller location shoulder 12 keep being separately installed with big roller 11 and trundle 7 between seat 2, described big roller 11 lower ends with treat that roll extrusion fillet position is corresponding, the balance set 8 that has internal diameter to equate with bent axle microcephaly axle journal external diameter, the medial extremity of described balance set 8 is provided with positioning ring groove 13, the lower end of described trundle 7 is positioned at positioning ring groove 13, described bent axle microcephaly axle journal is by supporting roller 10, trundle 7, balance set 8 axially and radial location.Balance set 8 outboard end are provided with the top locating hole of lathe.The diameter at above-mentioned guide wheel 3 two ends differs, and concrete numerical value is determined by the linear velocity of large and small roller.
During installation, the left side flange end of bent axle 1 is connected with the headstock of knurling machine, with chuck (or other clamping mode), clamp, bent axle microcephaly axle journal end puts balance set 8, the locating hole holding out against on balance set with lathe top 9 again, with trundle 7 and 10 pairs of Crankshafts of supporting roller to and radial location, start lathe and just can carry out bent axle microcephaly axle journal fillet and carry out rolling and processing.
The present invention can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (2)
1. a rolling device for fillet of small-head shaft neck of crankshaft, comprise roll extrusion body, be sleeved on the supporting roller on bent axle microcephaly axle journal, on roll extrusion body, axle is installed, in axle, by needle bearing, guide wheel is installed, described roll extrusion body keeps seat with roller, it is characterized in that, described guide wheel middle part is provided with roller location shoulder, the diameter of the shoulder inner side, roller location of described guide wheel is less than the diameter in outside, inner side and the roller of described roller location shoulder keep between seat, outside and the roller of roller location shoulder keep being separately installed with big roller and trundle between seat, described big roller lower end with treat that roll extrusion fillet position is corresponding, the balance set that has internal diameter to equate with bent axle microcephaly axle journal external diameter, the medial extremity of described balance set is provided with positioning ring groove, the lower end of described trundle is positioned at positioning ring groove, described bent axle microcephaly axle journal passes through supporting roller, trundle, balance set axially and radial location.
2. rolling device for fillet of small-head shaft neck of crankshaft according to claim 1, is characterized in that, described balance set outboard end is provided with the top locating hole of lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042664.5A CN102554553B (en) | 2012-02-24 | 2012-02-24 | Small-end journal round corner rolling device for crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042664.5A CN102554553B (en) | 2012-02-24 | 2012-02-24 | Small-end journal round corner rolling device for crankshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102554553A CN102554553A (en) | 2012-07-11 |
| CN102554553B true CN102554553B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210042664.5A Expired - Fee Related CN102554553B (en) | 2012-02-24 | 2012-02-24 | Small-end journal round corner rolling device for crankshaft |
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| CN (1) | CN102554553B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801895A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Crankshaft large fillet under cutting groove rolling mechanism |
| CN103111672B (en) * | 2013-01-10 | 2015-02-11 | 延锋彼欧汽车外饰系统有限公司 | R-angle stamping fixture for flexible milled-surface-painted plastic material |
| CN103867556A (en) * | 2014-04-02 | 2014-06-18 | 广西玉柴机器股份有限公司 | Crankshaft for engine |
| WO2015155414A1 (en) * | 2014-04-10 | 2015-10-15 | Wärtsilä Finland Oy | An on-site residual stress creation tool for and method of treating a crankshaft bearing surface and/or crankshaft bearing fillet |
| CN104259736A (en) * | 2014-08-08 | 2015-01-07 | 滨州海得曲轴有限责任公司 | Crankshaft rolling device |
| CN104259737A (en) * | 2014-08-08 | 2015-01-07 | 滨州海得曲轴有限责任公司 | Crankshaft swing rolling device |
| CN104191157A (en) * | 2014-08-08 | 2014-12-10 | 滨州海得曲轴有限责任公司 | Crankshaft six-wheel rolling device |
| CN104191158A (en) * | 2014-08-08 | 2014-12-10 | 滨州海得曲轴有限责任公司 | Crankshaft rolling device |
| CN106425279B (en) * | 2016-12-05 | 2018-12-04 | 陕西科技大学 | A kind of milled head |
| CN113275833A (en) * | 2021-06-01 | 2021-08-20 | 莱芜环球汽车零部件有限公司 | Crankshaft fillet rolling machine |
Citations (7)
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|---|---|---|---|---|
| DE19516834A1 (en) * | 1995-05-08 | 1996-11-14 | Siemens Ag | Internal stress rolling device for interior surface of work piece |
| CN2664829Y (en) * | 2003-12-11 | 2004-12-22 | 东风汽车有限公司 | Device for reducing circular bead protrusion of crankshaft in rolling process |
| CN2664830Y (en) * | 2003-12-23 | 2004-12-22 | 东风汽车有限公司 | Unilateral fillet rolling press device of axle type part |
| EP1861223A1 (en) * | 2005-03-24 | 2007-12-05 | Hegenscheidt-MFD GmbH & Co. KG | Method for deep rolling crankshafts |
| DE202007016471U1 (en) * | 2007-11-24 | 2008-03-13 | Hegenscheidt-Mfd Gmbh & Co. Kg | Device for deep rolling of transition radii on crankshafts |
| CN102357785A (en) * | 2011-10-28 | 2012-02-22 | 湖北汽车工业学院 | Fillet rolling technology for automobile air compressor crankshaft |
| CN202292019U (en) * | 2012-02-24 | 2012-07-04 | 滨州海得曲轴有限责任公司 | Rolling device for fillet of small-head shaft neck of crankshaft |
-
2012
- 2012-02-24 CN CN201210042664.5A patent/CN102554553B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516834A1 (en) * | 1995-05-08 | 1996-11-14 | Siemens Ag | Internal stress rolling device for interior surface of work piece |
| CN2664829Y (en) * | 2003-12-11 | 2004-12-22 | 东风汽车有限公司 | Device for reducing circular bead protrusion of crankshaft in rolling process |
| CN2664830Y (en) * | 2003-12-23 | 2004-12-22 | 东风汽车有限公司 | Unilateral fillet rolling press device of axle type part |
| EP1861223A1 (en) * | 2005-03-24 | 2007-12-05 | Hegenscheidt-MFD GmbH & Co. KG | Method for deep rolling crankshafts |
| DE202007016471U1 (en) * | 2007-11-24 | 2008-03-13 | Hegenscheidt-Mfd Gmbh & Co. Kg | Device for deep rolling of transition radii on crankshafts |
| CN102357785A (en) * | 2011-10-28 | 2012-02-22 | 湖北汽车工业学院 | Fillet rolling technology for automobile air compressor crankshaft |
| CN202292019U (en) * | 2012-02-24 | 2012-07-04 | 滨州海得曲轴有限责任公司 | Rolling device for fillet of small-head shaft neck of crankshaft |
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| Publication number | Publication date |
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| CN102554553A (en) | 2012-07-11 |
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Granted publication date: 20140326 Termination date: 20170224 |