CN201218270Y - Link lever for internal combustion engine - Google Patents
Link lever for internal combustion engine Download PDFInfo
- Publication number
- CN201218270Y CN201218270Y CNU2008200338234U CN200820033823U CN201218270Y CN 201218270 Y CN201218270 Y CN 201218270Y CN U2008200338234 U CNU2008200338234 U CN U2008200338234U CN 200820033823 U CN200820033823 U CN 200820033823U CN 201218270 Y CN201218270 Y CN 201218270Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- cover plate
- positioning
- fixing bolt
- hole
- 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 relates to a combustion engine connecting rod which comprises a connecting rod body, a connecting rod cover plate and a fixing bolt, wherein the external circumference of the top of the connecting rod cover plate is a circular arced convex surface; fixing holes of the connecting rod body and the connecting rod cover plate comprise a positioning hole and a threaded hole, the depth of the positioning hole has to exceed the combined surface of the connecting rod body and the connecting rod cover plate, and the threaded hole is positioned at the front end of the positioning hole in the connecting rod body; the fixing bolt comprises a positioning segment and a threaded segment, the positioning segment of the fixing bolt is matched with the positioning hole of the combined surface, and the threaded segment of the fixing bolt is matched with the threaded hole in the connecting rod body. The utility model has the advantages that because the connecting rod body and the connecting rod cover plate are positioned in the way that the positioning segment of the fixing bolt is matched with the positioning hole which exceeds the combined surface of the connecting rod body and the connecting rod cover plate, the connecting rod has compact structure and reliable positioning; because a positioning sleeve is canceled, the assembly processing and the production of the connecting rod are enabled to be simpler; because the arc surface of the external circumference of the connecting rod cover plate is the circular arced convex surface, the connecting rod body and the connecting rod cover plate can be forged and processed simultaneously to form an integral rough.
Description
Technical field
The utility model relates to a kind of internal-combustion engine connecting rod.
Background technique
Connecting rod applies in the internal-combustion engine as the critical piece of the power of transmission, because connecting rod is in the process of the power of transmission, bearing very high periodic shock power, inertial force and bending force, these all require connecting rod must have certain intensity, toughness and fatigue proof performance, and very high machining accuracy, at present, the main technique of connecting rod production has die casting process, contour forging technique, powder forging process, powder metallurgical technique, powder hot extrusion---Forging Technology, carbon fiber-reinforced technology etc., because die-forging forming has geometrical shape and dimensional accuracy near final products, and can improve its interior tissue, obtain higher mechanical property, facts have proved, adopt the fatigue strength and the reliability of the steel connecting rod that contour forging technique produces higher, more be applicable to internal-combustion engine, occupied leading position in connecting rod making internal-combustion engine.Known to the inventor, the connecting rod of (for example S195 diesel engine) generally is provided with abutment sleeve in internal combustion (IC) engine link rod, its two ends place the fixed hole of connecting rod cover plate and connecting rod shank respectively, fixing bolt inserts from connecting rod cover plate end, pass abutment sleeve or pass through screw threads for fastening again, this orientation type requirement on machining accuracy is higher, and the production difficulty is bigger.
Summary of the invention
The purpose of this utility model is: realize that by abutment sleeve the location exists requirement on machining accuracy higher at present connecting rod cover plate and connecting rod shank, the practical problem that the production difficulty is bigger provides a kind of new internal-combustion engine connecting rod.
The purpose of this utility model is achieved in that a kind of internal-combustion engine connecting rod, comprises connecting rod shank, connecting rod cover plate and fixing bolt, it is characterized in that: the cylindrical at connecting rod cover plate top is an arc convex surface; Comprise positioning hole and tapped hole in the fixed hole of connecting rod shank and connecting rod cover plate, the degree of depth of positioning hole should surmount the junction plane of connecting rod shank and connecting rod cover plate, and tapped hole is positioned at the front end of connecting rod shank positioning hole; Described fixing bolt contains threadless positioning section and thread section, the positioning section of fixing bolt with surmount connecting rod shank, connecting rod cap plate junction plane positioning hole coupling, the thread section of fixing bolt mates with the tapped hole in the connecting rod shank.
In the utility model: the angle of the central axis of described connecting rod shank and connecting rod cap plate junction plane and connecting rod shank is 45 °
Advantage of the present utility model is: since between connecting rod shank and the connecting rod cover plate positioning section by fixing bolt with surmount connecting rod shank, connecting rod cap plate junction plane positioning hole coupling realizes the location, compact structure, the location reliably; Owing to cancelled abutment sleeve, made the connecting rod ASSY processing simpler; Because the cylindrical at connecting rod cover plate top is an arc convex surface, can realize the synchronous die forging processing of connecting rod shank and connecting rod cover plate, form integral workblank.
Description of drawings
Fig. 1 is the structural representation of the internal-combustion engine that relates to of the utility model with connecting rod embodiment.
Among the figure: 1, connecting rod shank, 2, the connecting rod cover plate, 3, fixing bolt, 4, positioning hole, 5, tapped hole, 6, positioning section, 7, thread section.
Embodiment
Accompanying drawing discloses a specific embodiment of the present utility model without limitation, below in conjunction with accompanying drawing the utility model is further described.
As seen from Figure 1, the utility model comprises connecting rod shank 1, connecting rod cover plate 2 and the fixing bolt 3 that contains connecting rod small end, comprise positioning hole 4 and tapped hole 5 in the fixed hole of connecting rod shank 1 and connecting rod cover plate 2, the degree of depth of positioning hole 4 should surmount the junction plane of connecting rod shank 1 and connecting rod cover plate 2, and tapped hole 5 is arranged in the front end of connecting rod shank 1 positioning hole 4; Described fixing bolt 3 contains threadless positioning section 6 and thread section 7, the positioning section of fixing bolt 36 with surmount connecting rod shank 1, connecting rod cover plate 2 junction plane positioning holes 4 couplings, tapped hole 5 couplings in the thread section 7 of fixing bolt 3 and the connecting rod shank 1.In the present embodiment, connecting rod cover plate 2 excircle cambered surfaces are arc convex surface, and described connecting rod shank 1 is 45 ° with the angle of the central axis of connecting rod cover plate 2 junction planes and connecting rod shank 1.
Claims (2)
1, a kind of internal-combustion engine connecting rod comprises connecting rod shank, connecting rod cover plate and fixing bolt, it is characterized in that: the cylindrical at connecting rod cover plate top is an arc convex surface; Comprise positioning hole and tapped hole in the fixed hole of connecting rod shank and connecting rod cover plate, the degree of depth of positioning hole should surmount the junction plane of connecting rod shank and connecting rod cover plate, and tapped hole is positioned at the front end of connecting rod shank positioning hole; Described fixing bolt contains threadless positioning section and thread section, the positioning section of fixing bolt with surmount connecting rod shank, connecting rod cap plate junction plane positioning hole coupling, the thread section of fixing bolt mates with the tapped hole in the connecting rod shank.
2, internal-combustion engine connecting rod according to claim 1 is characterized in that: the angle of the central axis of described connecting rod shank and connecting rod cap plate junction plane and connecting rod shank is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200338234U CN201218270Y (en) | 2008-04-07 | 2008-04-07 | Link lever for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200338234U CN201218270Y (en) | 2008-04-07 | 2008-04-07 | Link lever for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218270Y true CN201218270Y (en) | 2009-04-08 |
Family
ID=40541106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200338234U Expired - Fee Related CN201218270Y (en) | 2008-04-07 | 2008-04-07 | Link lever for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218270Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363477A (en) * | 2011-10-20 | 2012-02-29 | 盐城市旭华制鞋机械有限公司 | Winding internal arm of intelligent compound machine |
-
2008
- 2008-04-07 CN CNU2008200338234U patent/CN201218270Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363477A (en) * | 2011-10-20 | 2012-02-29 | 盐城市旭华制鞋机械有限公司 | Winding internal arm of intelligent compound machine |
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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: 20090408 Termination date: 20110407 |