CN1959083A - Connection rod of automobile engine - Google Patents
Connection rod of automobile engine Download PDFInfo
- Publication number
- CN1959083A CN1959083A CN 200610096058 CN200610096058A CN1959083A CN 1959083 A CN1959083 A CN 1959083A CN 200610096058 CN200610096058 CN 200610096058 CN 200610096058 A CN200610096058 A CN 200610096058A CN 1959083 A CN1959083 A CN 1959083A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- shaft
- rod
- link
- connnecting
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 208000004141 microcephaly Diseases 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
An engine link of automobile consists of bar body of link middle section, bar bodies of link big head end and link small head end, connection ends of link big head and link small head. It is featured as utilizing edge of bar body as side plate of link bar body, setting said bar bodies of link big head end and link small head end separately from two ends to bar body connection position of link middle section at middle on longitudinal sectional surface and setting their thickness sizes from big to be small.
Description
Technical field
The present invention relates to the car engine machine part, more particularly, the present invention relates to a kind of connection rod of automobile engine.
Background technique
Connection rod of automobile engine belongs to the movement parts of transferring power, and its function is that the to-and-fro motion with piston changes rotatablely moving of bent axle into, and the power that acts on the piston is passed to bent axle.The motion conditions more complicated of connecting rod, its little head part does reciprocating linear motion with piston set, and the major part part rotates with the crank pin of bent axle, and shaft is partly done by to-and-fro motion and is swung the compound motion of being formed.Be subjected to the effect of two kinds of load during connecting rod work: one is the caused longitudinal loading of to-and-fro motion inertial force in combustion gas active force and the connecting rod, and another is the caused lateral load of connecting rod shank compound motion.The size and Orientation of above-mentioned two kinds of load all changes.In engine operation, because the weight of connecting rod itself produces rotating inertia force and reciprocal inertia force, so connecting rod is also wanted the power of consumption of engine when carrying out own function.People are in the design connecting rod, general guiding theory is: the function that at first guarantees part, particularly to make part have enough fatigue strength and structural rigidity, if fatigue strength deficiency, tend to cause connecting rod shank or connecting-rod bolts generation fatigue fracture, and then produce the major accident that complete machine destroys.If insufficient rigidity, will cause the mistake circle distortion of shaft bending deflection and connnecting rod big end, the eccentric wear that this will cause piston, cylinder, bearing and crank pin has strengthened the additional bending moment of connecting-rod bolts.On the other hand, connecting rod is a movement parts, must reduce its weight as much as possible, the output power of the increase motor of maximum possible.Traditional connecting rod, shaft adopts the cross section of I shape, because the force-bearing situation of connecting rod different parts is different, for the intensity of whole part is considered, the area in general I-shaped cross section is all bigger, strength reliability and Safety performance in order to guarantee part exactly increased the weight of connecting rod, consumed the output torque and the power of complete machine.
Summary of the invention
Problem to be solved by this invention provides a kind of connection rod of automobile engine, its objective is under the prerequisite of the mechanical property that guarantees structure, alleviates the weight of connecting rod.
To achieve these goals, the technical solution used in the present invention is: a kind of connection rod of automobile engine is provided, comprise connnecting rod big end end shaft, connecting rod intermediate section shaft, connecting rod small end end shaft, connecting rod small end connecting end and connnecting rod big end connecting end, the edge of shaft is the connecting rod shank side plate, described connnecting rod big end end shaft and connecting rod small end end shaft are on the rip cutting section, difference connecting rod intermediate section shaft connecting place from both ends to the middle, its thickness size is descending.
The connection part of the connection part of described connnecting rod big end end shaft and connnecting rod big end connecting end, connecting rod small end end shaft and connecting rod small end connecting end is smooth arc transition on the rip cutting section.
Described connnecting rod big end end shaft, connecting rod intermediate section shaft, connecting rod small end end shaft, the width dimensions on the in-plane are evenly constant.
Described connecting rod shank side plate on the rip cutting section and in-plane on size be constant.
Adopt technique scheme, the present invention makes connecting rod have enough fatigue strength and structural rigidity when guaranteeing that connecting rod is realized function and effect, adopts the structure of variable cross section simultaneously on the I-shaped cross-section, alleviate the weight of connecting rod like this, reduced the power that the connecting rod operation is consumed.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is a rip cutting cross-sectional view of the present invention;
Fig. 2 is a plane structure schematic representation of the present invention.
Number in the figure is: 1, connnecting rod big end end shaft, 2, connecting rod intermediate section shaft, 3, connecting rod small end end shaft, 4, the connecting rod small end connecting end, 5, the connnecting rod big end connecting end, 6, engine link, 7, the connecting rod shank side plate.
Embodiment
As Fig. 1 the structure of the present invention expressed of rip cutting cross-sectional view of the present invention and Fig. 2 plane structure schematic representation of the present invention, the present invention is a kind of connection rod of automobile engine 6, comprise connnecting rod big end end shaft 1, connecting rod intermediate section shaft 2, connecting rod small end end shaft 3, connecting rod small end connecting end 4 and connnecting rod big end connecting end 5, the edge of shaft is a connecting rod shank side plate 7, connecting rod small end connecting end 4 connects with wrist pin, connnecting rod big end connecting end 5 connects with crank journal on the bent axle, its function is that the to-and-fro motion with piston changes rotatablely moving of bent axle into, and the power that acts on the piston passed to bent axle, on bent axle, form moment of torsion.
Structure that the present invention adopts and concrete mode are: connnecting rod big end end shaft 1 and connecting rod small end end shaft 3 are distinguished connecting rod intermediate section shaft 2 connecting places from both ends to the middle on the rip cutting section, its thickness size is descending.The connection part of the connection part of connnecting rod big end end shaft 1 and connnecting rod big end connecting end 5, connecting rod small end end shaft 3 and connecting rod small end connecting end 4 is smooth arc transition on the rip cutting section.
The force-bearing situation of different parts is different, and generally stressed bigger near big end hole and position, microcephaly hole, it is then stressed smaller slightly to connect the shaft position.So adopt the variable cross section shaft.According to the stressed cloud charts of connecting rod,, so just can guarantee the Security and the reliability of connecting rod near big end hole and the bigger I-shaped cross section of design, position, microcephaly hole.In the stressed little little I-shaped cross section of design, shaft position, the weight of having saved connecting rod like this.
Shaft connects the position mutually with big end hole, is subjected to force intensity bigger, and Cross section Design becomes the variable cross section shape that increases gradually to major part, can bear bigger stressedly, has guaranteed intensity.Equally, shaft connects the position mutually with the microcephaly hole, and is stressed big, needs bigger intensity, so Cross section Design becomes variable taper, increases gradually to direction cross section, microcephaly hole along shaft, and enough strength and stiffness are provided.
Connecting rod intermediate section shaft 2 mainly plays connection, and requirement of strength decreases, so that the cross section can be designed is a little bit smaller, has alleviated the weight of connecting rod like this.
Concentrate for fear of excessive stress, the transition from the shaft to the major part and from the shaft to microcephaly should be slick and sly as far as possible.The connecting rod exemplar is carried out fatigue test, and the result shows safety facfor greater than design load, and the intensity and the tired requirement of part are satisfied in the design of employing variable cross section shaft fully.In design, utilize finite element analysis software, will calculate with design and combine, make design more accurate, more help improving machine performance, can also guarantee the Security and the reliability of part.
Connnecting rod big end end shaft 1, connecting rod intermediate section shaft 2, connecting rod small end end shaft 3, the width dimensions on the in-plane are evenly constant.Connecting rod shank side plate 7 on the rip cutting section and in-plane on size be constant.Make the shaft structure comparatively simple, easy to manufacture like this.Because connecting rod does not all change with the structure that other parts are connected, so there is not the problem of enforcement aspect on the concrete motor in the present invention, mainly be in the process of manufactured parts, control the Forging Technology process well, the satisfactory product of manufacturing dimension and performance.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (4)
1, a kind of connection rod of automobile engine (6), comprise connnecting rod big end end shaft (1), connecting rod intermediate section shaft (2), connecting rod small end end shaft (3), connecting rod small end connecting end (4) and connnecting rod big end connecting end (5), the edge of shaft is connecting rod shank side plate (7), it is characterized in that: described connnecting rod big end end shaft (1) and connecting rod small end end shaft (3) are on the rip cutting section, difference connecting rod intermediate section shaft (2) connecting place from both ends to the middle, its thickness size is descending.
2, according to the described connection rod of automobile engine of claim 1 (6), it is characterized in that: the connection part of the connection part of described connnecting rod big end end shaft (1) and connnecting rod big end connecting end (5), connecting rod small end end shaft (3) and connecting rod small end connecting end (4) is smooth arc transition on the rip cutting section.
3, according to the described connection rod of automobile engine of claim 1 (6), it is characterized in that: described connnecting rod big end end shaft (1), connecting rod intermediate section shaft (2), connecting rod small end end shaft (3), the width dimensions on the in-plane are evenly constant.
4, according to the described connection rod of automobile engine of claim 1 (6), it is characterized in that: described connecting rod shank side plate (7) on the rip cutting section and in-plane on size be constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100960586A CN100432392C (en) | 2006-09-14 | 2006-09-14 | Connection rod of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100960586A CN100432392C (en) | 2006-09-14 | 2006-09-14 | Connection rod of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1959083A true CN1959083A (en) | 2007-05-09 |
| CN100432392C CN100432392C (en) | 2008-11-12 |
Family
ID=38070921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100960586A Active CN100432392C (en) | 2006-09-14 | 2006-09-14 | Connection rod of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100432392C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725853A (en) * | 2018-07-17 | 2020-01-24 | 通用汽车环球科技运作有限责任公司 | Connecting rod and method for manufacturing connecting rod |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132834A (en) * | 1994-11-04 | 1996-05-28 | Izumi Kogyo Kk | Connecting rod |
| CN1373280A (en) * | 2002-04-17 | 2002-10-09 | 李燕禄 | Glass window |
| CN2628787Y (en) * | 2003-07-09 | 2004-07-28 | 常柴股份有限公司 | Single-cylinder horizontal diesel engine linkage rod |
| CN1540147A (en) * | 2003-10-27 | 2004-10-27 | 潘国陶 | Assembly of piston-connecting rod |
-
2006
- 2006-09-14 CN CNB2006100960586A patent/CN100432392C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725853A (en) * | 2018-07-17 | 2020-01-24 | 通用汽车环球科技运作有限责任公司 | Connecting rod and method for manufacturing connecting rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100432392C (en) | 2008-11-12 |
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| 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 |