CN2664829Y - Device for reducing circular bead protrusion of crankshaft in rolling process - Google Patents
Device for reducing circular bead protrusion of crankshaft in rolling process Download PDFInfo
- Publication number
- CN2664829Y CN2664829Y CNU2003201163380U CN200320116338U CN2664829Y CN 2664829 Y CN2664829 Y CN 2664829Y CN U2003201163380 U CNU2003201163380 U CN U2003201163380U CN 200320116338 U CN200320116338 U CN 200320116338U CN 2664829 Y CN2664829 Y CN 2664829Y
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- CN
- China
- Prior art keywords
- roller
- crankshaft
- fillet
- bulge
- supporting member
- Prior art date
- 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.)
- Expired - Lifetime
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a reduce bellied device of bent axle roll extrusion fillet, including supporting the head and by being located the overhead roller of support, the support head is installed by the axial support back shaft and bearing that support first body spacing inslot constitute its characterized in that: the bearing sleeve is higher than the limiting groove and supports the roller column and is matched with the roller column; the roller is equal to the crankshaft journal in length, two fillets are equal to the crankshaft fillet R, and the two fillets are axially positioned by two end faces of the journal and supported by the two bearing sleeves. When the rolling bulge is generated, the roller contacts with the bulge point, and the bulge point generates great contact stress to press the bulge point, so that the purpose of reducing or eliminating the bulge amount is achieved, and the bulge at the junction of the fillet and the shaft neck is mechanically removed.
Description
Technical field: the utility model belongs to internal combustion engine system technology for making field, relates in particular to a kind of device that reduces crankshaft rolling fillet projection.
Background technology: the crankshaft fillet finish rolling hardening is to utilize roller (ball) that axle journal fillet position is applied bigger power, after roll extrusion power is removed, produce plastic deformation at the fillet position, form big residual stress, can offset or the work tension at partial offset crankshaft fillet position, thereby increase substantially Crankshaft Fatigue Strength.Because having produced plastic deformation at the fillet position is that fillet is depressed, fillet and axle journal intersection can produce projection, and this projection can reach about 0.10mm.Behind correct grinding, in the rolling technology,,, may interfere and Bearing score with crankshaft bearing liner if do not eliminate projection owing to be the finished product roll extrusion.This projection is difficult to remove with machinery, can remove by the artificial way of throwing in abrasive band, but the geometric accuracy that is difficult to guarantee crankshaft journal is thrown in artificial abrasive band.And milled head supporting roller in the past has stopping means on the supporting member body, and the design width of general supporting member is less than crankshaft journal, and it is many that the length of supporting roller is less than the axle journal width, and supporting roller can't be pressed onto the crankshaft fillet boss.
Summary of the invention; The problem that the utility model is difficult to remove with machinery for the projection that solves fillet and axle journal intersection, a kind of device that reduces crankshaft rolling fillet projection is proposed, comprise supporting member and by the roller that is positioned on the supporting member, described supporting member is made of the back shaft and the bearing that axially are installed in the described supporting member body stopper slot, it is characterized in that: described bearing holder (housing, cover) exceeds described stopper slot, supports described rolling and leans on and cooperation with it; Described roller and crankshaft journal are isometric, and two fillets equate that with crankshaft fillet R two end face axial location of dependence axle journal are supported by two described bearing holder (housing, cover)s.
This reduces the device of crankshaft rolling fillet projection, because roller and crankshaft journal are isometric, rely on two end face location of axle journal, when the roll extrusion projection produced, boss exceeded journal surface, and roller contacts with raised points, produce very big contact stress at boss this moment, roller is depressed projection, thereby reaches the purpose that reduces or eliminate projection amount, has realized removing with machinery the projection of fillet and axle journal intersection.
Description of drawings: Fig. 1 is the structural representation that the utility model reduces the device of crankshaft rolling fillet projection;
Fig. 2 is the structural representation side view that the utility model reduces the device of crankshaft rolling fillet projection.
The specific embodiment: as shown in Figure 1 and Figure 2, this device that reduces crankshaft rolling fillet projection mainly is made of supporting member and the roller 3 that is positioned on the supporting member, and supporting member is by supporting member body 5 and axially be installed in back shaft 7 in supporting member body 5 upper limit position grooves and the bearing holder (housing, cover) 4 on the back shaft 7, needle roller 6 constitute; Bearing holder (housing, cover) 4 exceeds stopper slot 8, and back-up roller is leant on 3 also rolling cooperations with it; Each supporting member has two rollers, and the V-type that has formed axle journal supports, and each roller is supported by two bearing holder (housing, cover)s 4; Roller 3 is isometric with bent axle 2 axle journals, and two fillets equate with crankshaft fillet R, rely on 2 two end face axial location of axle journal, and needle roller 6, back shaft 7 and supporting member body 5 make bearing holder (housing, cover) 4 easily to rotate, when bent axle rotated, roller 3 and bearing holder (housing, cover) 4 were also along with rotation.
Roller and crankshaft journal are isometric, rely on two end face location of axle journal, and roller contacts with the axle journal line when beginning, when roller 1 bears bigger roll extrusion power, along with 2 rotations of workpiece bent axle, make fillet produce plastic deformation, can produce the roll extrusion flange at fillet and axle journal transition position, because when the roll extrusion projection produces, this position exceeds journal surface, and roller contacts with raised points, and produce very big contact stress at boss this moment, roller is depressed projection, can reduce or eliminate projection amount.
Claims (2)
1, a kind of device that reduces crankshaft rolling fillet projection, comprise supporting member and by the roller that is positioned on the supporting member, described supporting member is made of the back shaft and the bearing that axially are installed in the described supporting member body stopper slot, it is characterized in that: described bearing holder (housing, cover) exceeds described stopper slot, supports described rolling and leans on and cooperation with it; Described roller and crankshaft journal are isometric, and two fillets equate that with crankshaft fillet R two end face axial location of dependence axle journal are supported by two described bearing holder (housing, cover)s.
2, the device that reduces crankshaft rolling fillet projection as claimed in claim 1 is characterized in that: two described rollers are arranged, the described axle journal of V-shaped support on the described supporting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201163380U CN2664829Y (en) | 2003-12-11 | 2003-12-11 | Device for reducing circular bead protrusion of crankshaft in rolling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201163380U CN2664829Y (en) | 2003-12-11 | 2003-12-11 | Device for reducing circular bead protrusion of crankshaft in rolling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664829Y true CN2664829Y (en) | 2004-12-22 |
Family
ID=34346235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201163380U Expired - Lifetime CN2664829Y (en) | 2003-12-11 | 2003-12-11 | Device for reducing circular bead protrusion of crankshaft in rolling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664829Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357771A (en) * | 2011-10-28 | 2012-02-22 | 湖北汽车工业学院 | Knurling machine |
| CN102554553A (en) * | 2012-02-24 | 2012-07-11 | 滨州海得曲轴有限责任公司 | Small-end journal round corner rolling device for crankshaft |
| 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 |
| CN104646456A (en) * | 2015-01-16 | 2015-05-27 | 滨州海得曲轴有限责任公司 | Supporting rolling post and method for correcting crankshaft journal cylindricity |
| CN107662082A (en) * | 2017-09-11 | 2018-02-06 | 邵阳市格溢精工科技有限公司 | A kind of edging pressure head of fast changeable roller |
| CN109108572A (en) * | 2018-10-19 | 2019-01-01 | 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 and technique |
-
2003
- 2003-12-11 CN CNU2003201163380U patent/CN2664829Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357771A (en) * | 2011-10-28 | 2012-02-22 | 湖北汽车工业学院 | Knurling machine |
| CN102357771B (en) * | 2011-10-28 | 2013-11-20 | 湖北汽车工业学院 | Knurling machine |
| CN102554553A (en) * | 2012-02-24 | 2012-07-11 | 滨州海得曲轴有限责任公司 | Small-end journal round corner rolling device for crankshaft |
| CN102554553B (en) * | 2012-02-24 | 2014-03-26 | 滨州海得曲轴有限责任公司 | Small-end journal round corner rolling device for crankshaft |
| 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 |
| CN104646456A (en) * | 2015-01-16 | 2015-05-27 | 滨州海得曲轴有限责任公司 | Supporting rolling post and method for correcting crankshaft journal cylindricity |
| CN107662082A (en) * | 2017-09-11 | 2018-02-06 | 邵阳市格溢精工科技有限公司 | A kind of edging pressure head of fast changeable roller |
| CN109108572A (en) * | 2018-10-19 | 2019-01-01 | 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 and technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131211 Granted publication date: 20041222 |