CN201027577Y - Connecting structure for connecting engine cylinder and crankshaft main bearing seat - Google Patents
Connecting structure for connecting engine cylinder and crankshaft main bearing seat Download PDFInfo
- Publication number
- CN201027577Y CN201027577Y CNU2007201238934U CN200720123893U CN201027577Y CN 201027577 Y CN201027577 Y CN 201027577Y CN U2007201238934 U CNU2007201238934 U CN U2007201238934U CN 200720123893 U CN200720123893 U CN 200720123893U CN 201027577 Y CN201027577 Y CN 201027577Y
- Authority
- CN
- China
- Prior art keywords
- main bearing
- cylinder body
- bearing seat
- crankshaft main
- bent axle
- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model requests to protect a connecting structure of an engine cylinder body and a bent axle main bearing seat and comprises a cylinder body and a bent axle main bearing seat. The cylinder body is connected with the bent axle main bearing seat by a bolt. The main body of the bent axle main bearing seat falls into a corresponding concave groove of the cylinder body and is connected with the cylinder body by two bolts. Two sides of the lower plane of the bent axle main bearing seat are separately added with a forming wing shape which clings a convex table which corresponds with the cylinder body and are connected with the cylinder body by two bolts; therefore the rigidity of the bent axle main bearing seat and the connecting tightening degree are improved, thereby reducing vibration and noise of the engine. Furthermore, a concave groove is processed on one side contacting part of the cylinder body and the bent axle main bearing seat to avoid the contacting stress on the contacting part of the cylinder body and the bent axle main bearing seat side. The utility model improves the combining rigidity of the bent axle main bearing seat compared with the prior art and reduces vibration and noise of the engine.
Description
Technical field
The utility model relates to the car engine machine technology.
Background technique
Along with the strictness of car noise rules, further reduce in order to make automobile pass through noise, the noise and the vibration that reduce motor itself are very necessary.Existing engine cylinder-body and crankshaft main bearing pedestal normally adopt two bolts to reach and are fastenedly connected, the junction surface of crankshaft main bearing pedestal and cylinder body is generally the plane, such Placement and face type make the insufficient rigidity of crankshaft main bearing pedestal, are easy to generate vibration and noise.Especially big to discharge capacity, the higher motor of performance requirement can't meet the demands fully.
Summary of the invention
The purpose of this utility model provides a kind of engine cylinder-body and crankshaft main bearing pedestal linkage structure, reduces the vibration and the noise that are produced because of the crankshaft main bearing pedestal insufficient rigidity, reduces the vibration and the noise level of motor itself.
The technical solution of the utility model is as follows:
A kind of engine cylinder-body and crankshaft main bearing pedestal linkage structure, include cylinder body and crankshaft main bearing pedestal, they are by connecting by at least four bolts, can increase like this crankshaft main bearing pedestal in conjunction with rigidity, increase the tautness of its connection, thereby reduce the vibration and the noise of motor, can satisfy the requirement of the motor of general little discharge capacity, but, performance requirement higher motor big for discharge capacity, cylinder body preferably is connected by eight bolts with crankshaft main bearing pedestal.
Motor for little discharge capacity, the crankshaft main bearing pedestal main body falls into the groove of cylinder body counterpart, be connected with cylinder body by two bolts, it is wing that the lower plane both sides of crankshaft main bearing pedestal respectively increase a formation, the boss corresponding with cylinder body is close to, be connected with cylinder body by two bolts, such structure can further improve the rigidity that combines of crankshaft main bearing pedestal and cylinder body again.
Further, produce contact stress in the contact position, be processed with groove at cylinder body and crankshaft main bearing pedestal contacts side surfaces portion for fear of cylinder body and crankshaft main bearing pedestal side.
The utility model compared with prior art has following advantage;
Under 2 fastening situations of original crankshaft main bearing pedestal, for the motor of little discharge capacity, by changing the shape of crankshaft main bearing pedestal, and increase by two bolts increase by 2 fastening, reach improve crankshaft main bearing pedestal in conjunction with rigidity, reduce the vibration of motor and the purpose of noise., performance requirement higher motor big for discharge capacity adopt eight bolts to realize cylinder body and crankshaft main bearing pedestal, can significantly increase they in conjunction with rigidity, the Mazu motor is to vibrating and the requirement of noise.This structure has also fully taken into account effective elimination owing to the contact stress that the crankshaft main bearing pedestal alteration of form produces simultaneously, makes the performance of motor unaffected.
Description of drawings
Fig. 1 adopts 4 fastening cylinder body and crankshaft main bearing pedestal long splice compositions that are used on the small displacement engine;
Fig. 2 adopts 8 fastening cylinder body and crankshaft main bearing pedestal long splice compositions that are used on the large-duty engine;
Fig. 3 is the plane structure chart of crankshaft main bearing pedestal among Fig. 2.
Embodiment
Referring to Fig. 1, for the not too high motor of little discharge capacity, performance requirement, cylinder body 1 adopts four bolts to be connected with crankshaft main bearing pedestal 3, and crankshaft main bearing pedestal main body 11 falls into the groove of cylinder body counterpart, realizes being connected with cylinder body 1 by two stay bolts 2.The lower plane both sides of crankshaft main bearing pedestal respectively increase by one wing 12, and the boss corresponding with cylinder body 1 is close to, and is connected with cylinder body 1 by two lag bolts 5.In addition, be provided with the groove 4 that is used to eliminate stress at cylinder body 1 and crankshaft main bearing pedestal 3 contacts side surfaces positions.
Referring to Fig. 2 and Fig. 3, for big discharge capacity, the higher motor of performance requirement, cylinder body 1 and crankshaft main bearing pedestal 3 adopts eight bolts to be connected, and crankshaft main bearing pedestal 3 is the plane with the binding site of cylinder body 1, therebetween and both sides be divided into cloth and be connected with eight bolts 6.
Claims (4)
1. engine cylinder-body and crankshaft main bearing pedestal linkage structure include cylinder body and crankshaft main bearing pedestal, and they connect by bolt; It is characterized in that: cylinder body is connected by at least four bolts with crankshaft main bearing pedestal.
2. engine cylinder-body according to claim 1 and crankshaft main bearing pedestal linkage structure is characterized in that: cylinder body is connected by eight bolts with crankshaft main bearing pedestal.
3. engine cylinder-body according to claim 1 and crankshaft main bearing pedestal linkage structure, it is characterized in that: the crankshaft main bearing pedestal main body falls into the groove of cylinder body counterpart, be connected with cylinder body by two bolts, the lower plane both sides of crankshaft main bearing pedestal respectively increase by one wing, the boss corresponding with cylinder body is close to, and is connected with cylinder body by two bolts again.
4. engine cylinder-body according to claim 3 and crankshaft main bearing pedestal linkage structure is characterized in that: be provided with groove at cylinder body and crankshaft main bearing pedestal contacts side surfaces position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201238934U CN201027577Y (en) | 2007-03-28 | 2007-03-28 | Connecting structure for connecting engine cylinder and crankshaft main bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201238934U CN201027577Y (en) | 2007-03-28 | 2007-03-28 | Connecting structure for connecting engine cylinder and crankshaft main bearing seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027577Y true CN201027577Y (en) | 2008-02-27 |
Family
ID=39131782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201238934U Expired - Fee Related CN201027577Y (en) | 2007-03-28 | 2007-03-28 | Connecting structure for connecting engine cylinder and crankshaft main bearing seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027577Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022218A (en) * | 2009-09-02 | 2011-04-20 | 万国引擎知识产权有限责任公司 | Crankcase and main bearing cap construction |
-
2007
- 2007-03-28 CN CNU2007201238934U patent/CN201027577Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022218A (en) * | 2009-09-02 | 2011-04-20 | 万国引擎知识产权有限责任公司 | Crankcase and main bearing cap construction |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20130328 |