CN103317296B - The reproducing method of engine link - Google Patents
The reproducing method of engine link Download PDFInfo
- Publication number
- CN103317296B CN103317296B CN201310225748.7A CN201310225748A CN103317296B CN 103317296 B CN103317296 B CN 103317296B CN 201310225748 A CN201310225748 A CN 201310225748A CN 103317296 B CN103317296 B CN 103317296B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod
- described connecting
- tooth
- head bore
- 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 - Fee Related
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of reproducing method of engine link, belong to engine remanufacturing technical field, comprise the defect in finishing gonnecting rod body and connecting rod cap toothed surfaces; With original profile of tooth for benchmark, original profile of tooth is removed a processing capacity; With connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together; Change described little head bore lining; Boring processing is carried out to the big end hole of the lining in described little head bore and described connecting rod; Described connecting-rod bolts are pulled down; Machining is carried out to the plane on the described connecting rod cap of the head contact with described connecting-rod bolts; Clean described gonnecting rod body and described connecting rod cap, remove surface and iron filings inside holes and greasy dirt; The complete described gonnecting rod body of cleaning and described connecting rod cap are assembled with another connecting-rod bolts by pairing mark; The connecting rod assembled to be weighed grouping.The present invention has recovered the existing product precision of connecting rod and can ensure that connecting rod works reliably, achieves manufacturing again the old connecting rod of engine.
Description
Technical field
The invention belongs to engine remanufacturing technical field, particularly relate to a kind of reproducing method of engine profile of tooth connecting rod.
Background technology
Manufacturing is a kind of industry waste product being implemented to high-tech reparation and transformation again, its for be damage or be about to the parts scrapped, on the basis that performance failure analysis, life appraisal etc. are analyzed, carry out Rebuilding engineering design, adopt recovery technique, by workpiece shapes and accuracy resumption, the quality that makes to manufacture a product again meets or exceeds new product.
Engine remanufacturing had both been different from general engine manufacture, also the engine overhaul of non-generic, but the maintenance mode that brand-new.Engine remanufacturing is that the engine entering certain life cycle is reverted to the process of new machine according to manufacturing process again.
Engine link is one of important spare part of engine, is also to hold one of flimsy key components and parts, and on market, learies and demand are much larger than engine.But engine link required precision is high, from the off-gage phenomenon of the relevant significant dimensions parameters such as connecting rod ubiquity big end hole, little head bore, centre-to-centre spacing and the depth of parallelism under engine is changed, also there is flexural deformation and the torsional deformation of shaft simultaneously, and technological datum destroys, reparation difficulty is large, engine link create the technical barrier realizing engine remanufacturing and need to break through again.
At present, the reproducing method of existing engine profile of tooth connecting rod mainly contains following two kinds:
First method utilizes pressure straightening bending with sizing to be out of shape and torsional deformation, changes small end bushing, and carries out boring processing to little head bore; Though can the temporarily flexural deformation of correction coupler shaft and torsional deformation after pressure straightening, but because shaft internal memory after alignment is at stress, be difficult to eliminate, the risk of connecting rod cracking is there is in use afterwards, and big end hole is not repaired, connecting rod after manufacturing so again can not recover original product precision, and service life seriously reduces;
Second method adopts carries out honing after brush plating to big end hole, carries out lining replacing and process little head bore; Repair big end hole size in brush plating mode, be limited to the adhesion of brushing coating and con-rod only, in the connecting rod course of work, under the effect of alternate stress, brushing coating easily comes off and causes connecting rod to damage, and even causes engine to be scrapped.
Summary of the invention
Technical problem to be solved by this invention is: the reproducing method providing a kind of engine link, there is the off-gage phenomenon of relevant significant dimensions parameter with the profile of tooth connecting rod solved under engine replacing, the flexural deformation and the torsional deformation that also there is shaft cause the technical problem that reparation difficulty is large simultaneously.
For solving the problems of the technologies described above, technical scheme of the present invention is: the reproducing method of engine link, comprises the following steps:
(1) defect in dressing tool finishing gonnecting rod body and connecting rod cap toothed surfaces is used respectively;
(2) with original profile of tooth for benchmark, original profile of tooth is removed a processing capacity;
(3) with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together;
(4) the little head bore lining of described connecting rod is taken out, after deburring, cleaning are carried out to described little head bore bottom outlet, another lining is loaded in described little head bore;
(5) boring processing is carried out to the big end hole of the lining in described little head bore and described connecting rod;
(6) described connecting-rod bolts are pulled down;
(7) machining is carried out to the plane on the described connecting rod cap of the head contact with described connecting-rod bolts;
(8) clean described gonnecting rod body and described connecting rod cap, remove surface and iron filings inside holes and greasy dirt;
(9) the complete described gonnecting rod body of cleaning and described connecting rod cap are assembled with another connecting-rod bolts by pairing mark;
(10) connecting rod assembled is weighed on weighing instrument, carry out packet marking by grouping standard.
Improve as one, after step (5), honing is carried out to the big end hole of described connecting rod.
Improve as one, in step (1), described dressing tool comprises oilstone or file.
Improve as one, in step (2), adopt milling or broaching to remove a processing capacity in original profile of tooth.
Improve as one, in step (5), adopt the big end hole of twin shaft fine boring machine to the lining in described little head bore and described connecting rod to process simultaneously.
Improve as one, in step (5), adopt jig boring machine to process the big end hole of the lining in described little head bore and described connecting rod respectively.
As further improvement, in step (7) a metallic, described machining comprises boring or drilling.
After have employed technique scheme, the invention has the beneficial effects as follows:
1, in step (2), because the processing capacity removed is very little, maximum controls at about 0.3mm, on the bulk strength of connecting rod and performance almost without affecting, very micro-on the impact in service life;
2, in step (2), after gonnecting rod body and connecting rod cap tooth Profile Machining, in step (3), with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together, now the big end hole shape of connecting rod becomes approximate ellipsoidal, in step (5), boring processing is carried out to the big end hole of described connecting rod, after adopting shrinkage cavity, boring recovers the repair mode of big end hole precision again, after the recovery of big end hole dimensional accuracy, exposed in big end hole is connecting rod material body, possesses precision and the performance of new product, therefore can ensure its reliability;
3, in step (5), boring processing is carried out to the big end hole of the lining in described little head bore and described connecting rod, while the recovery big end hole of described connecting rod and the little head bore relative dimensions precision of described connecting rod, also the flexural deformation of connecting rod shank and torsional deformation are revised, because connecting rod shank is under the state (nature) not being subject to external force deformation, flexural deformation and the torsional deformation of connecting rod shank is revised by the mode of processing big end hole and little head bore, makeover process does not produce stress, thus eliminate the risk that pressure correction brings, ensure that the reliability of repairing back link,
4, little head bore changes the reprocessing of another lining, can recover the dimensional accuracy of little head bore completely, makes little head bore recover required precision and the performance of new product;
5, processing reparation is all carried out to crank pin end pore and little head bore, fully can ensure that the centre-to-centre spacing of crank pin end pore and little head bore will be demanded for peace the requirement of row degree;
6, to the processing of device surface (namely with the plane on the described connecting rod cap of the head contact of described connecting-rod bolts), repaired because of connecting-rod bolts repeatedly conjunction to the destruction that device surface causes, ensure that connecting rod is the reliability of tight moment and accuracy.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The reproducing method of engine link, comprises the following steps:
(1) use the defect in dressing tool finishing gonnecting rod body and connecting rod cap toothed surfaces respectively, this dressing tool comprises oilstone, file etc., and this defect comprises collide with high point, burr etc. in profile of tooth;
(2) with original profile of tooth for benchmark, adopt the processing mode such as milling or broaching, original profile of tooth removed a processing capacity, thus repair the defects such as colliding with in profile of tooth, wearing and tearing, and be that rational allowance is reserved in follow-up big end hole processing;
(3) with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together;
(4) on forcing press, the little head bore lining of this connecting rod is taken out, after deburring, cleaning are carried out to this little head bore bottom outlet, another lining is pressed on forcing press in this little head bore;
(5) adopt the big end hole of twin shaft fine boring machine to the lining in this little head bore and this connecting rod process simultaneously or adopt jig boring machine to process the big end hole of the lining in this little head bore and this connecting rod respectively, recover relative dimensions precision and centre-to-centre spacing, the depth of parallelism etc. of this crank pin end pore and little head bore;
(6) instruments such as pneumtic impact wrench, torque wrench or tightening machine are adopted to be pulled down by these connecting-rod bolts;
(7) carry out machining to device surface, this device surface is and the plane on this connecting rod cap of the head contact of these connecting-rod bolts, and described machining comprises boring or drilling etc., the roughness requirements in recovery device face;
(8) clean this gonnecting rod body and this connecting rod cap, remove surface and iron filings inside holes and greasy dirt;
(9) this complete for cleaning gonnecting rod body and this connecting rod cap are assembled with another connecting-rod bolts by pairing mark;
(10) connecting rod assembled is weighed on weighing instrument, carry out packet marking by grouping standard.
In order to improve the roughness of this big end hole, after step (5), honing is carried out to the big end hole of this connecting rod.
Embodiment one:
The reproducing method of engine link, comprises the following steps:
(1) use the defect in oilstone finishing gonnecting rod body and connecting rod cap toothed surfaces respectively, this defect comprises collide with high point, burr etc. in profile of tooth;
(2) with original profile of tooth for benchmark, adopt Milling Process mode, original profile of tooth removed a processing capacity, thus repair the defects such as colliding with in profile of tooth, wearing and tearing, and be that rational allowance is reserved in follow-up big end hole processing;
(3) with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together;
(4) on forcing press, the little head bore lining of this connecting rod is taken out, after deburring, cleaning are carried out to this little head bore bottom outlet, another lining is pressed on forcing press in this little head bore;
(5) adopt the big end hole of twin shaft fine boring machine to the lining in this little head bore and this connecting rod to process simultaneously, recover relative dimensions precision and centre-to-centre spacing, the depth of parallelism etc. of this crank pin end pore and little head bore;
(6) pneumtic impact wrench is adopted to be pulled down by these connecting-rod bolts;
(7) carry out boring to device surface, this device surface is and the plane on this connecting rod cap of the head contact of these connecting-rod bolts, the roughness requirements in recovery device face;
(8) clean this gonnecting rod body and this connecting rod cap, remove surface and iron filings inside holes and greasy dirt;
(9) this complete for cleaning gonnecting rod body and this connecting rod cap are assembled with another connecting-rod bolts by pairing mark;
(10) connecting rod assembled is weighed on weighing instrument, carry out packet marking by grouping standard.
Embodiment two:
The reproducing method of engine link, comprises the following steps:
(1) use the defect in file finishing gonnecting rod body and connecting rod cap toothed surfaces respectively, this defect comprises collide with high point, burr etc. in profile of tooth;
(2) with original profile of tooth for benchmark, adopt wire pulling method mode, original profile of tooth removed a processing capacity, thus repair the defects such as colliding with in profile of tooth, wearing and tearing, and be that rational allowance is reserved in follow-up big end hole processing;
(3) with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together;
(4) on forcing press, the little head bore lining of this connecting rod is taken out, after deburring, cleaning are carried out to this little head bore bottom outlet, another lining is pressed on forcing press in this little head bore;
(5) adopt jig boring machine to process the big end hole of the lining in this little head bore and this connecting rod respectively, recover relative dimensions precision and centre-to-centre spacing, the depth of parallelism etc. of this crank pin end pore and little head bore;
(6) honing is carried out to this crank pin end pore, improve the roughness of this big end hole;
(7) torque wrench is adopted to be pulled down by these connecting-rod bolts;
(8) carry out drilling to device surface, this device surface is and the plane on this connecting rod cap of the head contact of these connecting-rod bolts, the roughness requirements in recovery device face;
(9) clean this gonnecting rod body and this connecting rod cap, remove surface and iron filings inside holes and greasy dirt;
(10) this complete for cleaning gonnecting rod body and this connecting rod cap are assembled with another connecting-rod bolts by pairing mark;
(11) connecting rod assembled is weighed on weighing instrument, carry out packet marking by grouping standard.
The reproducing method of the engine link that the embodiment of the present invention provides, has recovered the existing product precision of connecting rod and can ensure that connecting rod works reliably, having achieved manufacturing again the old connecting rod of engine.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the reproducing method of engine link, is characterized in that, comprises the following steps:
(1) defect in dressing tool finishing gonnecting rod body and connecting rod cap toothed surfaces is used respectively;
(2) with original profile of tooth for benchmark, original profile of tooth is removed a processing capacity;
(3) with connecting-rod bolts, the gonnecting rod body and connecting rod cap that complete profile of tooth reparation are assembled together;
(4) the little head bore lining of described connecting rod is taken out, after deburring, cleaning are carried out to described little head bore bottom outlet, another lining is loaded in described little head bore;
(5) boring processing is carried out to the big end hole of the lining in described little head bore and described connecting rod;
(6) described connecting-rod bolts are pulled down;
(7) machining is carried out to the plane on the described connecting rod cap of the head contact with described connecting-rod bolts;
(8) clean described gonnecting rod body and described connecting rod cap, remove surface and iron filings inside holes and greasy dirt;
(9) the complete described gonnecting rod body of cleaning and described connecting rod cap are assembled with another connecting-rod bolts by pairing mark;
(10) connecting rod assembled is weighed on weighing instrument, carry out packet marking by grouping standard.
2. the reproducing method of engine link according to claim 1, is characterized in that, after step (5), carries out honing to the big end hole of described connecting rod.
3. the reproducing method of engine link according to claim 1, is characterized in that, in step (1), described dressing tool comprises oilstone or file.
4. the reproducing method of engine link according to claim 1, is characterized in that, in step (2), adopts milling or broaching to remove a processing capacity in original profile of tooth.
5. the reproducing method of engine link according to claim 1, is characterized in that, in step (5), adopts the big end hole of twin shaft fine boring machine to the lining in described little head bore and described connecting rod to process simultaneously.
6. the reproducing method of engine link according to claim 1, is characterized in that, in step (5), adopts jig boring machine to process the big end hole of the lining in described little head bore and described connecting rod respectively.
7. the reproducing method of the engine link according to claim 5 or 6, is characterized in that, in step (7) a metallic, described machining comprises boring or drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225748.7A CN103317296B (en) | 2013-06-06 | 2013-06-06 | The reproducing method of engine link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225748.7A CN103317296B (en) | 2013-06-06 | 2013-06-06 | The reproducing method of engine link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103317296A CN103317296A (en) | 2013-09-25 |
| CN103317296B true CN103317296B (en) | 2016-01-20 |
Family
ID=49186499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310225748.7A Expired - Fee Related CN103317296B (en) | 2013-06-06 | 2013-06-06 | The reproducing method of engine link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103317296B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759840A (en) * | 2015-03-12 | 2015-07-08 | 中国人民解放军装甲兵工程学院 | Processing technique of remanufactured connecting rod |
| CN105312832A (en) * | 2015-11-26 | 2016-02-10 | 甘肃酒钢集团西部重工股份有限公司 | Laser remanufacturing method for scraper bar |
| CN106363341B (en) * | 2016-11-14 | 2019-01-01 | 张家港清研再制造产业研究院有限公司 | A kind of engine link restorative procedure |
| CN115008121A (en) * | 2022-06-27 | 2022-09-06 | 广东四会实力连杆有限公司 | Engine connecting rod reworking and remanufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0874170A1 (en) * | 1997-04-21 | 1998-10-28 | Bridgestone Corporation | Coupling device |
| CN1619167A (en) * | 2003-11-20 | 2005-05-25 | 蒋玉华 | Piston type internal combustion engine connecting rod |
| CN2837589Y (en) * | 2005-10-12 | 2006-11-15 | 安徽江淮汽车股份有限公司 | Connecting rod of 2.2L TCI diesel engine |
| CN101168223A (en) * | 2006-10-23 | 2008-04-30 | 联合工艺公司 | Engine frame bearing bushing maintenance |
| DE102008049257A1 (en) * | 2008-09-26 | 2010-04-08 | Zeltec Distributions Gmbh | Connecting rod for reciprocating piston engine, has connecting bars interconnected with longitudinal bars, and recesses formed in connecting rod shank, where bars asymmetrically run in relation to longitudinal plane of connecting rod |
| CN202867533U (en) * | 2012-11-13 | 2013-04-10 | 夏万良 | Chromium plating repaired connecting rod with large end hole in railway diesel locomotive accessory |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06272708A (en) * | 1993-03-16 | 1994-09-27 | Nissan Motor Co Ltd | Piston cooling device for internal combustion engine |
-
2013
- 2013-06-06 CN CN201310225748.7A patent/CN103317296B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0874170A1 (en) * | 1997-04-21 | 1998-10-28 | Bridgestone Corporation | Coupling device |
| CN1619167A (en) * | 2003-11-20 | 2005-05-25 | 蒋玉华 | Piston type internal combustion engine connecting rod |
| CN2837589Y (en) * | 2005-10-12 | 2006-11-15 | 安徽江淮汽车股份有限公司 | Connecting rod of 2.2L TCI diesel engine |
| CN101168223A (en) * | 2006-10-23 | 2008-04-30 | 联合工艺公司 | Engine frame bearing bushing maintenance |
| DE102008049257A1 (en) * | 2008-09-26 | 2010-04-08 | Zeltec Distributions Gmbh | Connecting rod for reciprocating piston engine, has connecting bars interconnected with longitudinal bars, and recesses formed in connecting rod shank, where bars asymmetrically run in relation to longitudinal plane of connecting rod |
| CN202867533U (en) * | 2012-11-13 | 2013-04-10 | 夏万良 | Chromium plating repaired connecting rod with large end hole in railway diesel locomotive accessory |
Non-Patent Citations (3)
| Title |
|---|
| 基于仿真的汽车发动机再制造生产线配置优化;苏春等;《工业工程》;20090215;第12卷(第01期);67-68 * |
| 柴油机连杆部件变形和曲轴红套处滑移的修理工艺;李奉香;《中国修船》;20080201;第21卷(第01期);24-25 * |
| 面向再制造的小型内燃机连杆设计技术研究;陈敏等;《机械设计与制造》;20060228(第02期);99-100 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103317296A (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103317296B (en) | The reproducing method of engine link | |
| CN104385019B (en) | Oil cylinder piston sealing ring processing method and turning clamp | |
| CN109262213B (en) | Manufacturing method of large-modulus cast steel large gear ring | |
| CN203541956U (en) | Die for repairing abraded bearing position | |
| CN103317297A (en) | Method of repairing crushed bush in spindle hole of diesel engine block | |
| CN112719810B (en) | Manufacturing method of split type nozzle ring | |
| CN203357289U (en) | Combined clamping forceps mouth suitable for precision special-shaped part | |
| CN104759840A (en) | Processing technique of remanufactured connecting rod | |
| CN114799756A (en) | Composite manufacturing device for high-rib thin-wall aluminum alloy wall plate parts and using method | |
| CN105643026A (en) | MJ-reinforced internal thread rolling reinforcing device | |
| CN203696170U (en) | Built-up jig for machining main body and sleeve of lathe wrench | |
| CN105945542A (en) | Regenerative repair method for template of die-casting machine | |
| CN110666441A (en) | Restoration and on-spot positioner of crooked section earmuff | |
| CN102554556A (en) | Machining method for eliminating wear of propeller hub and blades of adjustable propeller device | |
| RU2782367C1 (en) | Method for restoring threaded connections | |
| CN104551788A (en) | Hole milling and boring clamp for small commercial car manipulator cover | |
| CA3071745C (en) | Box and pin threaded connection for a tubular | |
| CN1887505A (en) | Screw rotor repairing process | |
| CN209190121U (en) | Radial forging machine hammer stem pin repairs special tooling | |
| CN209578361U (en) | Engine body cylinder sleeve, which sink, repairs reamer | |
| CN218397055U (en) | Flexible fixture of milling machine for forging type thin-wall parts | |
| CN212794830U (en) | Auxiliary device for taking out drill bit after breakage of drill bit for drilling through hole | |
| CN113549729B (en) | Method for replacing converter tilting speed reducer primary speed reducer on line | |
| CN203282325U (en) | Hydraulic cylinder grinding device | |
| CN210232251U (en) | Right-angle processing jig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210310 Address after: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Patentee after: Weichai Power Co.,Ltd. Address before: No. 197, Fushou East Street, high tech Development Zone, Weifang City, Shandong Province, 261061 Patentee before: WEICHAI POWER (WEIFANG) REMANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |