CN109108572A - Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique - Google Patents
Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique Download PDFInfo
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- CN109108572A CN109108572A CN201811222219.0A CN201811222219A CN109108572A CN 109108572 A CN109108572 A CN 109108572A CN 201811222219 A CN201811222219 A CN 201811222219A CN 109108572 A CN109108572 A CN 109108572A
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- Prior art keywords
- rolling
- fillet
- axle journal
- pressure head
- compound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
Abstract
Present invention is mainly applied to diesel engine part processing technique fields, in particular to a kind of middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique, including rolling fillet pressure head component and rolling axle journal pressure head component, rolling fillet pressure head component includes fillet rolling seaming chuck and compound rolling push-down head, rolling axle journal pressure head component includes axle journal rolling seaming chuck and compound rolling push-down head, fillet rolling seaming chuck includes fillet pressure head ontology, fillet seaming chuck bearing is set in fillet pressure head ontology, fillet idler wheel is arranged in fillet pressure head body bottom portion two sides, fillet idler wheel is bonded with fillet seaming chuck bearing.This patent, which rolls fillet rolling with axle journal, is classified as two procedures by two sets of rolling components to complete；In rolling process, on the basis of controlling crankshaft deformation, the rolling power of axle journal is improved, it is more obvious to the reduction effect of crankshaft journal intensity and protrusion, reach the compound rolling of fillet and axle journal, promotes the comprehensive service performance of crankshaft.
Description
Technical field
The present invention relates to a kind of middle low-speed marine diesel engine crankshaft fillets and the compound finish rolling hardening device of axle journal and technique, main
To be applied to diesel engine part processing technique field.
Background technique
Crankshaft fillet finish rolling hardening technology is widely used on the put-put crankshaft of high speed, especially automobile-used crankshaft,
To guarantee that its performance is often used in combination with heat treatment process such as nitridation, quenchings, to improve crankshaft service performance.Middling speed, low speed
Crankshaft of Marine Diesel Engine, material include magnesium iron and forged steel, and length, volume, weight are larger, roll power and the more difficult control of distortion in rolling
System, is also easy to produce plastic deformation, and rolling and reinforcing technology difficulty is greater than automobile crane；After Large Crankshaft fillet rolling with axle journal knot
Coincidence, which is set, often has protrusion, and part of the manufacturer is improved by improving technique, referring to a kind of ZL200310111575.2 " crankshaft rolling
Press reinforcement process ", this method there are the problem of be exactly that crankshaft needs secondary clamping to process, fillet is heavy after processing cuts depth not
Easily guarantee, for the crankshaft produced especially for crankshaft used for large boat and small batch, secondary clamping deviation can make fillet
Depth difference is bigger；Producer also devises the small device for solving protrusion, referring to a kind of CN200320116338.0 " reduction crankshaft
The device of fillet rolling protrusion " rolling protrusion can be reduced, but the device is structure as a whole with fillet rolling head, by rolling power limit
It makes, because contact area is larger at axle journal, therefore suffered rolling pressure ratio fillet is much smaller, so effect of its rolling protrusion is simultaneously
It is unobvious.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of middle low-speed marine diesel engine crankshaft fillet and the compound rolling of axle journal
Intensifying device and technique are pressed, not only crankshaft fillet is strengthened, also improves axle journal intensity by way of rolling axle journal, subtracts
Salient point phenomenon caused by when few fillet rolling, makes crankshaft overall performance get a promotion.
Middle low-speed marine diesel engine crankshaft fillet of the present invention and the compound finish rolling hardening device of axle journal, including rolling are set
It is standby, it further include rolling fillet pressure head component and rolling axle journal pressure head component, rolling fillet pressure head component includes pressing on fillet rolling
Head and compound rolling push-down head, rolling axle journal pressure head component include axle journal rolling seaming chuck and compound rolling push-down head, fillet rolling
Pressure seaming chuck includes fillet pressure head ontology, and fillet seaming chuck bearing, fillet pressure head body bottom portion two is arranged in fillet pressure head ontology
Fillet idler wheel is arranged in side, and fillet idler wheel is bonded with fillet seaming chuck bearing.
The axle journal rolling seaming chuck includes axle journal pressure head ontology, includes two axle journal seaming chuck axis in axle journal pressure head ontology
It holds, axle journal roller is arranged in axle journal pressure head body bottom portion, and axle journal roller sagittal plane is bonded with two axle journal seaming chuck bearings.
The compound rolling push-down head includes push-down head ontology, two push-down head bearings of setting in push-down head ontology, under two
Cylindrical roller is respectively installed with outside pressure head bearing.
The fillet pressure head ontology includes the frame on top and the adjusting bracket of lower part, and fillet seaming chuck bearing is mounted on
In the frame in portion, fillet idler wheel is mounted on the adjusting bracket of lower part, and adjusting elasticity component is arranged between frame and adjusting bracket.
The adjusting elasticity component includes adjusting bolt, adjusts bolt connection frame and adjusting bracket, corresponding to adjust bolt
Adjusting hole is set on adjusting bracket.
Middle low-speed marine diesel engine crankshaft fillet of the present invention and the compound rolling and reinforcing technology of axle journal, it is characterised in that
Following steps:
(1) on roll unit after clamping crankshaft, with the rolling of fillet rolling seaming chuck and compound rolling push-down head composition
Pressure fillet pressure head component is clamped on the axle journal that crankshaft needs to roll, and is carried out fillet rolling after setting fillet rolling power, has been rolled
It is unclamped at rear pressure release；
(2) it is clamped in the rolling axle journal pressure head component of axle journal rolling seaming chuck and compound rolling push-down head composition same
Axle journal, setting axle journal roll the reparation of progress axle journal rolling and protrusion after power.
The patent is primarily directed in, a kind of reinforcement process of low-speed marine diesel engine magnesium iron, forged steel crankshaft；Crankshaft needs
Grinding and after the assay was approved is completed, is lifted on roll unit and is rolled, need at least to prepare two according to crankshaft shape
Set rolling component: first set is rolled for crankshaft fillet, which installs fillet idler wheel, and push-down head is two auxiliary
Idler wheel cooperates the clamping for completing rolling pincers with seaming chuck, which mainly completes fillet rolling, but also synchronizes and realize axle journal
First rolling；Second set of component is mainly used for axle journal and strengthens and reduce protrusion, and seaming chuck is made of a main roller, push-down head with
First covering device is general, is also made of two auxiliary wheels, and two sides roller widths are more bigger than axle journal straight line portion to guarantee axle journal
Rolling comprehensively, but must not be interfered with fillet；Two milled heads are sequentially compound to the completion of crankshaft fillet and axle journal
Finish rolling hardening；The crankshaft of different in width and diameter can be met by increasing milled head quantity or simple replaceable pressure head
The fillet and axle journal of multiple types crankshaft of diesel engine roll.It rolls fillet pressure head component and rolls the mounting means of axle journal pressure head component
For the mode of those skilled in the art's conventional selection.
The rolling depression method not only strengthens crankshaft fillet, also improves axle journal intensity by way of rolling axle journal,
Salient point phenomenon caused by when reduction fillet rolling, makes crankshaft overall performance get a promotion；This crankshaft reinforcement technique can reduce
Rolling surface roughness improves surface hardness, reduces crankshaft residual stress, to achieve the effect that improve crankshaft fatigue strength；
Its performance can compare favourably with the performance after middle low-speed marine diesel engine spherulitic iron crankshaft nitrogen treatment, but its processing cost only has nitrogen
Change 1/10th or so of processing, therefore under the premise of meeting crankshaft service performance and processing quality, it can substantially reduce and be processed into
This.
The beneficial effects of the present invention are:
By individually designed axle journal milled head, fillet rolling and axle journal are rolled and are classified as two by two sets of rolling components
Procedure is completed；In rolling process, on the basis of controlling crankshaft deformation, the rolling power of axle journal is improved, it is strong to crankshaft journal
The reduction effect of degree and protrusion is more obvious, reaches the compound rolling of fillet and axle journal, promotes the comprehensive service performance of crankshaft.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram for rolling fillet pressure head component.
Fig. 3 is the side structure schematic view of Fig. 2.
Fig. 4 is the structural schematic diagram for rolling axle journal pressure head component.
Fig. 5 is the side structure schematic view of Fig. 4.
Fig. 6 is the structural schematic diagram of compound rolling push-down head.
In figure: 1, crankshaft；2, fillet rolling seaming chuck；3, axle journal rolls seaming chuck；4, compound rolling push-down head；5, fillet
Pressure head ontology；6, fillet seaming chuck bearing；7, fillet idler wheel；8, bolt is adjusted；9, adjusting bracket；10, axle journal pressure head ontology；11,
Axle journal seaming chuck bearing；12, axle journal roller；13, cylindrical roller；14, push-down head bearing；15, push-down head ontology.
Specific embodiment
The present invention is described further with reference to the accompanying drawing:
As shown in figs 1 to 6, middle low-speed marine diesel engine crankshaft fillet of the present invention and the compound finish rolling hardening of axle journal
Device, including roll unit further include rolling fillet pressure head component and rolling axle journal pressure head component, roll fillet pressure head component packet
Include fillet rolling seaming chuck 2 and compound rolling push-down head 4, rolling axle journal pressure head component includes axle journal rolling seaming chuck 3 and compound
Push-down head 4 is rolled, fillet rolling seaming chuck 2 includes fillet pressure head ontology 5, and fillet seaming chuck axis is arranged in fillet pressure head ontology 5
6 are held, fillet idler wheel 7 is arranged in 5 two sides of the bottom of fillet pressure head ontology, and fillet idler wheel 7 is bonded with fillet seaming chuck bearing 6.Described
It includes axle journal pressure head ontology 10 that axle journal, which rolls seaming chuck 3, includes two axle journal seaming chuck bearings 11, axle journal in axle journal pressure head ontology 10
Axle journal roller 12 is arranged in 10 bottom of pressure head ontology, and 12 sagittal plane of axle journal roller is bonded with two axle journal seaming chuck bearings 11.Compound rolling
Pressure pressure head 4 includes push-down head ontology 15, and two push-down head bearings 14 are arranged in push-down head ontology 15, divide outside two push-down head bearings 14
It is not set with cylindrical roller 13.Fillet pressure head ontology 5 includes the frame on top and the adjusting bracket 9 of lower part, fillet seaming chuck bearing 6
It is mounted in the frame on top, fillet idler wheel 7 is mounted on the adjusting bracket 9 of lower part, and setting adjusts pine between frame and adjusting bracket 9
Tight component.Adjusting elasticity component includes adjusting bolt 8, adjusts 8 connection framework of bolt and adjusting bracket 9, and the corresponding bolt 8 that adjusts is being adjusted
Adjusting hole is set on section frame 9.
Middle low-speed marine diesel engine crankshaft fillet of the present invention and the compound rolling and reinforcing technology of axle journal, it is characterised in that
Following steps:
(1) it on roll unit after clamping crankshaft 1, is formed with fillet rolling seaming chuck 2 and compound rolling push-down head 4
Rolling fillet pressure head component is clamped on the axle journal that crankshaft 1 needs to roll, and carries out fillet rolling after setting fillet rolling power, is rolled
Pressure release is unclamped after the completion；
(2) it is clamped in the rolling axle journal pressure head component that axle journal rolling seaming chuck 3 and compound rolling push-down head 4 form same
A axle journal, setting axle journal roll the reparation of progress axle journal rolling and protrusion after power.Note that the rolling pressure set points of rolling fillet are wanted
Power is rolled less than axle journal, could more effectively be repaired 1 protrusion of crankshaft in this way.
Fig. 2 is rolled in fillet pressure head component structural schematic diagram, this is the major architectural of pressure head to fillet pressure head ontology 5, internal
It is bonded equipped with fillet seaming chuck bearing 6 with fillet idler wheel 7 and drives two side wheel synchronous rotaries in rolling, bottom passes through adjusting
Bolt 8 and adjusting bracket 9 adjust the angle of fillet idler wheel 7 and elastic, in order to which fillet idler wheel 7 is preferably bonded with crankshaft fillet.
Fig. 4 is rolled in axle journal pressure head component structural schematic diagram, and two groups of axle journal seaming chucks are housed inside axle journal pressure head ontology 10
Bearing 11, the bearing are mainly used for that axle journal roller 12 is driven to be rotated in the rolling process, and during making roller rolling press
Stress is more evenly；
In compound 4 structural schematic diagram of rolling push-down head of Fig. 6, including the same inside of two support cylindrical rollers 13 is equipped with down
Pressure head bearing 14, push-down head bearing 14 are arranged in corresponding position in push-down head ontology 15, which mainly rises in the rolling process
To the effect compressed with seaming chuck cooperation, two seaming chucks of Fig. 2, Fig. 4 require to be used cooperatively with Fig. 6 push-down head when in use,
Therefore its stability will more reliably, so arranging two larger support cylindrical rollers 13, the two cylindrical rollers 13 are because of rolling
Rolling is equally also assisted in the process, is all played a role to the rolling quality of axle journal.
Claims (6)
1. a kind of middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal, including roll unit, feature
It is: further includes rolling fillet pressure head component and rolling axle journal pressure head component, rolling fillet pressure head component includes on fillet rolling
Pressure head (2) and compound rolling push-down head (4), rolling axle journal pressure head component include under axle journal rolling seaming chuck (3) and compound rolling
Pressure head (4), fillet rolling seaming chuck (2) include fillet pressure head ontology (5), and fillet seaming chuck is arranged in fillet pressure head ontology (5)
Fillet idler wheel (7) are arranged in bearing (6), fillet pressure head ontology (5) two sides of the bottom, fillet idler wheel (7) and fillet seaming chuck bearing (6)
Fitting.
2. middle low-speed marine diesel engine crankshaft fillet according to claim 1 and the compound finish rolling hardening device of axle journal, special
Sign is: axle journal rolling seaming chuck (3) includes axle journal pressure head ontology (10), includes pressing on two axle journals in axle journal pressure head ontology (10)
Axle journal roller (12) are arranged in head bearing (11), axle journal pressure head ontology (10) bottom, on axle journal roller (12) sagittal plane and two axle journals
Pressure head bearing (11) fitting.
3. middle low-speed marine diesel engine crankshaft fillet according to claim 1 and the compound finish rolling hardening device of axle journal, special
Sign is: compound rolling push-down head (4) includes push-down head ontology (15), and two push-down head bearings are arranged in push-down head ontology (15)
(14), cylindrical roller (13) are respectively installed with outside two push-down head bearings (14).
4. middle low-speed marine diesel engine crankshaft fillet according to claim 1 and the compound finish rolling hardening device of axle journal, special
Sign is: fillet pressure head ontology (5) includes the frame on top and the adjusting bracket (9) of lower part, and fillet seaming chuck bearing (6) is mounted on
In the frame on top, fillet idler wheel (7) is mounted on the adjusting bracket (9) of lower part, and setting adjusts pine between frame and adjusting bracket (9)
Tight component.
5. middle low-speed marine diesel engine crankshaft fillet according to claim 4 and the compound finish rolling hardening device of axle journal, special
Sign is: adjusting elasticity component includes adjusting bolt (8), adjusts bolt (8) connection framework and adjusting bracket (9), corresponding to adjust spiral shell
Adjusting hole is arranged on adjusting bracket (9) in bolt (8).
6. a kind of multiple based on middle low-speed marine diesel engine crankshaft fillet described in any one of claim 1-5 claim and axle journal
Close rolling and reinforcing technology, it is characterised in that following steps:
(1) it on roll unit after clamping crankshaft, is formed with fillet rolling seaming chuck (2) and compound rolling push-down head (4)
Rolling fillet pressure head component is clamped on the axle journal that crankshaft needs to roll, and carries out fillet rolling after setting fillet rolling power, is rolled
Pressure release is unclamped after the completion；
(2) it is clamped in the rolling axle journal pressure head component of axle journal rolling seaming chuck (3) and compound rolling push-down head (4) composition same
A axle journal, setting axle journal roll the reparation of progress axle journal rolling and protrusion after power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222219.0A CN109108572A (en) | 2018-10-19 | 2018-10-19 | Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222219.0A CN109108572A (en) | 2018-10-19 | 2018-10-19 | Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique |
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| Publication Number | Publication Date |
|---|---|
| CN109108572A true CN109108572A (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811222219.0A Pending CN109108572A (en) | 2018-10-19 | 2018-10-19 | Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal and technique |
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| CN (1) | CN109108572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478156A (en) * | 2022-08-15 | 2022-12-16 | 中国第一汽车股份有限公司 | Method for removing surface stress at round corner of cast iron axle housing by floating roller |
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| CN206854404U (en) * | 2017-05-27 | 2018-01-09 | 天润曲轴股份有限公司 | A kind of complete residual compressive stress coalignment of bent axle |
| CN107598481A (en) * | 2017-09-27 | 2018-01-19 | 湖北三环锻造有限公司 | Knuckle axle journal rolling technology |
| CN208977180U (en) * | 2018-10-19 | 2019-06-14 | 淄柴动力有限公司 | Middle low-speed marine diesel engine crankshaft fillet and the compound finish rolling hardening device of axle journal |
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2018
- 2018-10-19 CN CN201811222219.0A patent/CN109108572A/en active Pending
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|---|---|---|---|---|
| US6272896B1 (en) * | 1999-12-23 | 2001-08-14 | Daimlerchrysler Corporation | Secondary (back-up) roller design for the fillet rolling of the crankshaft |
| US6393885B1 (en) * | 2000-11-07 | 2002-05-28 | Hegenscheidt Mfd Corporation | Tooling for deep rolling fillets of crankshaft journals |
| JP2004276121A (en) * | 2003-03-12 | 2004-10-07 | Nissan Motor Co Ltd | Roller burnishing method and burnishing device |
| 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 |
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| CN107598481A (en) * | 2017-09-27 | 2018-01-19 | 湖北三环锻造有限公司 | Knuckle axle journal rolling technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115478156A (en) * | 2022-08-15 | 2022-12-16 | 中国第一汽车股份有限公司 | Method for removing surface stress at round corner of cast iron axle housing by floating roller |
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