CN2592302Y - Correction apparatus of crankshaft deformation for engine - Google Patents
Correction apparatus of crankshaft deformation for engine Download PDFInfo
- Publication number
- CN2592302Y CN2592302Y CN 02281044 CN02281044U CN2592302Y CN 2592302 Y CN2592302 Y CN 2592302Y CN 02281044 CN02281044 CN 02281044 CN 02281044 U CN02281044 U CN 02281044U CN 2592302 Y CN2592302 Y CN 2592302Y
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- utility
- model
- correcting
- cranks
- wedge
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- Expired - Lifetime
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a correcting device for crank deformation of engines, relating to the design and the manufacturing technology of a correcting device for crank deformation of engines. The utility model is composed of oblique iron, a wedge, a link stopper and a screw bolt, wherein the oblique iron and the wedge are movably connected, the wedge and the screw bolt are connected by screw threads, and the screw bolt is provided with the link stopper. The minimum adjusting quantity of the utility model can reach 0.005 millimeter in the process of application, and the utility model can completely ensure the precise control of reverse deformation quantity in the process of supporting. The utility model is used for worst cranks with crank bending jump smaller than 0.5 mm for correcting, corrected cranks are put in stoves for carrying out ageing treatments in 24 hours, the correcting device is disassembled after the cranks go out of stoves, microscopic cracks can not be discovered in the process of examination, and the residual stress eliminating effect of the utility model is good in the process correction. Cranks treated by the utility model have eligible bending jump, can not generate microscopic cracks and have good and reliable metallographic structure, thereby, the utility model solves the key technology for correcting the worst crank bending jump.
Description
(1) technical field:
The utility model relates to the design and fabrication technology of the means for correcting of engine crankshaft distortion.
(2) background technology:
Behind engine crankshaft via nitride or the impewdance matching, some (about 15～20%) bending is beated overproof, and this is a very crucial technical barrier during bent axle is made.Bending is beated and overproofly commonly used than the Nogata method is: support two ends with the V-type channel,, be pressed in position intermediate with pressure with axial height point up, increase pressure gradually, up to the generation plastic deformation, jerk value is reduced, reach qualified purpose.With 42CrMo steel (HRc28～33) is example, at normal temperatures yield limit σ
s≈ 700MPa, stress measurement shows to have only when bent axle is bent to the 7mm left and right sides down, could produce the amount of recovery of beating, and at this moment surface stress reaches σ=0.21MPa * 7616=1599MPa, this stress can make the cementation zone cracking and form tired source.If beat and be 0.21mm when bent axle, exerting pressure during alignment and making anti-deformation is 10mm, and jerk value is reverse 0.06mm after the alignment.It is qualified to proofread and correct though beat, and turns the neck Zone R on inspection and finds, the surface is existing with undiscovered place of fluorescent magnetic particle flaw detection or many places crackle, about deeply 0.2mm.The crackle characteristics are: bold and discontinuous, and transgranular fracture.Therefore, this aligning method should adopt on bent axle anything but.
(3) summary of the invention:
The purpose of this utility model provides the means for correcting of a kind of engine crankshaft distortion, and it solves the beat key technical problem of overproof correction of engine crankshaft bending emphatically.
The technical solution of the utility model is: be made of wedge, chock, link stopper and bolt, wedge and chock flexibly connect, and chock is connected with bolt thread, and link stopper is arranged on bolt.
The utility model beneficial effect is: the I of its regulated quantity reaches 0.005 millimeter in application process, can guarantee the accurate control of anti-deformation in the support process fully.Be used for deflection of crankshaft and beat, proofread and correct less than the overproof bent axle of 0.5mm.Ageing Treatment is carried out in the shove charge in 24 hours of bent axle after the correction, pulls down means for correcting after coming out of the stove, and checks and does not find microfissure, and the residual stress in the trimming process is eliminated good.Through the bent axle that this device is handled, bending is beated qualified, promptly can not produce microfissure, metallographic structure is also good reliable, thereby has solved the beat key technology of overproof correction of deflection of crankshaft.
(4) description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is A-A cutaway view of Fig. 1.
Fig. 3 the utility model is used schematic diagram.
(5) specific embodiment:
The means for correcting of engine crankshaft distortion is made of wedge, chock, link stopper and bolt as shown in Figure 1, and wedge 1 and chock 2 flexibly connect, and chock and bolt 4 are threaded, and link stopper 3 is arranged on bolt.As shown in Figure 2, be example explanation means for correcting using method with the six cylinder engine bent axle.Measure the crooked jerk value (△) of four main neck, find out the position of crooked low spot, means for correcting is supported on 3,4 turns the low spot place; Adjust the bolt of bent axle means for correcting, utilize the tension force of wedge anti-deformation (h) can occur supporting at the four main neck.For example the crooked jerk value of four main neck is 0.40mm, means for correcting is placed in 3,4 turns the low spot place of beating, adjust 3 or 4 and turn place's bolt, making four main neck contravariant is 0.31mm, adjust 4 or 3 again and turn place's bolt, turn on the anti-deformation basis in adjustment 3 or 4, increase the anti-deformation of 0.31mm again.At this moment reexamine the crooked jerk value of main shaft and should be 0.31 * 2 * 2 (bilateral)-0.40 ÷ 2=1.04.Ageing Treatment is carried out in the shove charge in 24 hours of bent axle after the correction, pulls down means for correcting after coming out of the stove, and checks distortion.Detect according to stress, the 42CrMo steel, quenching and tempering hardness HRc28～33, when bent axle was bent 3mm down, stress σ=E ε=0.21MPa * 3310=693.21Mpa can be near the yield limit σ under the normal temperature
s≈ 700MPa has only 0.2～1.75mm and this technology bent axle is curved down, does not find microfissure on inspection, and the residual stress in the trimming process is eliminated good, reduces engine society and uses breaking axis.
Claims (1)
1, the means for correcting of engine crankshaft distortion is made of wedge, chock, link stopper and bolt, it is characterized in that: wedge [1] and chock [2] flexibly connect, and chock and bolt [4] are threaded, and link stopper [3] is arranged on bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281044 CN2592302Y (en) | 2002-11-08 | 2002-11-08 | Correction apparatus of crankshaft deformation for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281044 CN2592302Y (en) | 2002-11-08 | 2002-11-08 | Correction apparatus of crankshaft deformation for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2592302Y true CN2592302Y (en) | 2003-12-17 |
Family
ID=33743560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02281044 Expired - Lifetime CN2592302Y (en) | 2002-11-08 | 2002-11-08 | Correction apparatus of crankshaft deformation for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2592302Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439883A (en) * | 2014-11-29 | 2015-03-25 | 重庆三贵机械制造有限公司 | Crankshaft correction device |
| 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 |
| KR102077809B1 (en) * | 2019-07-30 | 2020-02-14 | (주)에쎈테크 | Device for correcting pipe shape |
-
2002
- 2002-11-08 CN CN 02281044 patent/CN2592302Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439883A (en) * | 2014-11-29 | 2015-03-25 | 重庆三贵机械制造有限公司 | Crankshaft correction device |
| 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 |
| KR102077809B1 (en) * | 2019-07-30 | 2020-02-14 | (주)에쎈테크 | Device for correcting pipe shape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FAW AUTO GROUP CO.LTD. DALIAN DIESEL ENGINE BRANCH Free format text: FORMER NAME OR ADDRESS: CHINA FIRST AUTOMOBILE GROUP DALIAN DIESEL ENGINE FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 116021 No. 49, Northeast Road, Shahekou District, Liaoning, Dalian Patentee after: FAW Jiefang Automobile Co., Ltd. Dalian diesel engine branch company Address before: 116021 No. 49, Northeast Road, Shahekou District, Liaoning, Dalian Patentee before: Dalian Diesel Engine Factory, Chinese First Car Group |
|
| ASS | Succession or assignment of patent right |
Owner name: FAW DEUTZ (DALIAN) ENGINE CO., LTD. Free format text: FORMER OWNER: FAW AUTO GROUP CO.LTD. DALIAN DIESEL ENGINE BRANCH CO.LTD. Effective date: 20080411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080411 Address after: No. 117 middle the Yellow Sea Road, Dalian economic and Technological Development Zone, Liaoning Province, China: 116600 Patentee after: Deutz (Dalian) Engine Co.,Ltd. Address before: No. 49, Northeast Road, Shahekou District, Liaoning, Dalian: 116021 Patentee before: FAW Jiefang Automobile Co., Ltd. Dalian diesel engine branch company |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121108 Granted publication date: 20031217 |