CN202391939U - Connecting rod body of automobile engine - Google Patents
Connecting rod body of automobile engine Download PDFInfo
- Publication number
- CN202391939U CN202391939U CN2011205406329U CN201120540632U CN202391939U CN 202391939 U CN202391939 U CN 202391939U CN 2011205406329 U CN2011205406329 U CN 2011205406329U CN 201120540632 U CN201120540632 U CN 201120540632U CN 202391939 U CN202391939 U CN 202391939U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- automobile engine
- crank pin
- hole
- pin end
- 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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Abstract
The utility model provides a connecting rod body of an automobile engine, which belongs to the technical field of machinery. The utility model solves the problems that the traditional connecting rod body is easy to break because of insufficient structural strength. The connecting rod body of the automobile engine comprises a connecting rod main body, a connecting rod small-end hole and a connecting rod large-end hole, wherein the connecting rod small-end hole and the connecting rod large-end hole are respectively formed in the upper end and the lower end of the connecting rod main body, the right side and the left side of the connecting rod large-end hole are symmetrically provided with a penetrated bolt hole, and the front plane and the rear plane of the connecting rod large-end hole are respectively provided with a reinforcing structure on opposite positions between the connecting rod large-end hole and the bolt hole. The front and the rear planes are respectively provided with the reinforcing structure between the connecting rod large-end hole and the bolt hole, so that the structural strength of a connecting rod can be effectively ensured, and the fracture of the connecting rod under the excessive stress centralizing effect can be avoided. The connecting rod body of the automobile engine is simple in structure and convenient to manufacture, and the matching precision between the connecting rod body and a connecting rod cover is higher.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of connecting rod, particularly a kind of connection rod of automobile engine body.
Background technique
Engine link is one of critical component of motor car engine, and its effect is that the to-and-fro motion with piston changes rotatablely moving of bent axle into, and passes to bent axle to a gaseous-pressure that acts on the piston set.So engine link also need swing and do complicated plane motion except moving up and down.During engine link work, need bear the alternate load that gaseous-pressure and reciprocal inertia force produce, require it should have enough fatigue strength and structural rigidity.Simultaneously, because engine link is not only a driving component, be again a movement parts simultaneously, receive the restriction of bent axle, piston unbalance moment and rotary inertia, can not improve bearing capacity by strengthening its size.Chinese patent number: disclose a kind of engine link among the ZL201020226856.8, comprised connecting rod shank and connecting rod cap, described connecting rod shank and connecting rod cap are fastenedly connected through screw bolt and nut.The engine link of this structure; Connecting rod shank and connecting rod cap adopt screw bolt and nut to be connected, have reduced the advantage that mechanical processing technique and locating stud press-fit station though have, owing to need on connecting rod shank, processing connecting-rod bolts hole flanged surface; Then make the transition region of connecting rod shank bolt hole flanged surface and connecting rod shank can produce machining stress; And the thickness of this transitional region is that connecting rod shank is the thinnest, therefore very easily produces stress in this transition region and concentrates, and the phenomenon of connecting rod shank fracture occurs.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of connection rod of automobile engine body, and it has sound construction, safe and reliable, not the advantage of easy-rupturing.
The purpose of the utility model can realize through following technical proposal: a kind of connection rod of automobile engine body; The connecting rod small end hole and the crank pin end pore that comprise the connecting rod shank body and be separately positioned on the upper and lower end of connecting rod body; The left and right sides of described crank pin end pore is symmetrically arranged with the bolt hole that runs through; On the plane, front and back of described crank pin end pore, crank pin end pore is provided with reinforced structure with mutual corresponding position between the bolt hole.
The utility model is provided with reinforced structure on the plane, front and back between crank pin end pore and the bolt hole, can guarantee the structural strength of connecting rod effectively, avoids under the concentrated effect of too much stress, making connecting rod rupture.
In above-mentioned connection rod of automobile engine body, respectively have the retaining edge of a semi-annular shape on the plane, front and back of described crank pin end pore, described reinforced structure is to be arranged on retaining along the stiffening rib on the outer wall.
In above-mentioned connection rod of automobile engine body, the upper-end surface of described bolt hole is made as the flanged surface that is used to be provided with flange, and described stiffening rib is arranged between flanged surface and the crank pin end pore.The thickness of the transition region of flanged surface and connecting rod shank is the thinnest place of connecting rod shank, and engine link forms stress at this place easily in work and concentrates, and stiffening rib is arranged on this place, can strengthen the intensity of whole connecting rod effectively, avoids fracture.
In above-mentioned connection rod of automobile engine body, described stiffening rib is symmetrical distribution all around with the longitudinal center line of connecting rod shank body.The quantity of stiffening rib is 4 altogether, and they are set to symmetric form, and stress distribution is even, and it is required to satisfy engine operation effectively.
In above-mentioned connection rod of automobile engine body, described crank pin end pore is a semi-annular shape.This crank pin end pore can be interlocked with the connecting cover that is similarly semi-annular shape and form an annulus hole.
In above-mentioned connection rod of automobile engine body, described connecting rod small end hole is circular.
Compared with prior art, the utlity model has following advantage: 1, between connecting body bolt hole flanged surface and crank pin end pore, stiffening rib is set, can guarantees the intensity of connecting rod shank, avoid fracture; 2, two stiffening ribs of design in the transition region both sides of connecting rod shank bolt hole flanged surface and connecting rod shank, totally 4 stiffening ribs, structural design is simple, easily manufactured; 3, on the bolt hole flange is set, make in the utility model connecting rod can with connecting cover combine more closely, guarantee both quality of fits, the precision of cylindricity thereby the crank pin end pore that improves connecting rod ASSY resets.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the perspective view of the utility model.
Among the figure, 1, the connecting rod body; 2, connecting rod small end hole; 3, crank pin end pore; 3a, retaining edge; 4, bolt hole; 5, flanged surface; 6, stiffening rib.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
See figures.1.and.2; Present embodiment is a kind of connection rod of automobile engine body; Whole connecting rod shank is symplex structure all around with self axle center, comprises connecting rod shank body 1, is arranged on the circular connecting rod small end hole 2 of connecting rod shank body 1 upper end and the crank pin end pore 3 that is arranged on the semi-annular shape of connecting rod body 1 lower end.The left and right sides of crank pin end pore 3 is symmetrically arranged with the bolt hole 4 that runs through, and can plug the bolt fastener that is used for fixing connecting rod shank and connecting rod cap, and the upper-end surface of this bolt hole 4 has the flanged surface 5 that is used to be provided with flange.The retaining that has a circle semi-annular shape on the hole wall of crank pin end pore 3 is along 3a; The outside and the transition region between the flanged surface 5 keeping off along 3a are area of stress concentration; Thereby in above-mentioned transition region; Promptly be positioned at retaining along the arranged outside stiffening rib 6 of 3a, to improve the structural strength of connecting rod shank towards flanged surface 5.Stiffening rib 6 in the present embodiment is 4 altogether, lays respectively on the left and right sides on plane, front and back of crank pin end pore 3, promptly is all around with the longitudinal center line of connecting rod shank body 1 to be symmetrically distributed.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used connecting rod body 1, connecting rod small end hole 2, crank pin end pore 3, retaining along terms such as 3a, bolt hole 4, flanged surface 5, stiffening ribs 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (6)
1. connection rod of automobile engine body; The connecting rod small end hole (2) and the crank pin end pore (3) that comprise connecting rod shank body (1) and be separately positioned on the upper and lower end of connecting rod shank body (1); The left and right sides of described crank pin end pore (3) is symmetrically arranged with the bolt hole (4) that runs through; It is characterized in that, on the plane, front and back of described crank pin end pore (3), be positioned at crank pin end pore (3) and be provided with reinforced structure with mutual corresponding position between the bolt hole (4).
2. connection rod of automobile engine body according to claim 1 is characterized in that, the retaining that respectively has a semi-annular shape on the plane, front and back of described crank pin end pore (3) is along (3a), and described reinforced structure is for being arranged on retaining along the stiffening rib (6) on (3a) outer wall.
3. connection rod of automobile engine body according to claim 2 is characterized in that, the upper-end surface of described bolt hole (4) is made as the flanged surface (5) that is used to be provided with flange, and described stiffening rib (6) is arranged between flanged surface and the crank pin end pore (3).
4. connection rod of automobile engine body according to claim 3 is characterized in that, described stiffening rib (6) is symmetrical distribution all around with the longitudinal center line of connecting rod shank body (1).
5. according to claim 1 or 2 or 3 or 4 described connection rod of automobile engine bodies, it is characterized in that described crank pin end pore (3) is a semi-annular shape.
6. connection rod of automobile engine body according to claim 5 is characterized in that, described connecting rod small end hole (2) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205406329U CN202391939U (en) | 2011-12-21 | 2011-12-21 | Connecting rod body of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205406329U CN202391939U (en) | 2011-12-21 | 2011-12-21 | Connecting rod body of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391939U true CN202391939U (en) | 2012-08-22 |
Family
ID=46666867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205406329U Expired - Fee Related CN202391939U (en) | 2011-12-21 | 2011-12-21 | Connecting rod body of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224094A (en) * | 2016-08-31 | 2016-12-14 | 河北华北柴油机有限责任公司 | 12 cylinder water-cooled Diesel engines |
-
2011
- 2011-12-21 CN CN2011205406329U patent/CN202391939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224094A (en) * | 2016-08-31 | 2016-12-14 | 河北华北柴油机有限责任公司 | 12 cylinder water-cooled Diesel engines |
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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: 20120822 Termination date: 20131221 |