CN203979103U - A kind of connecting rod - Google Patents
A kind of connecting rod Download PDFInfo
- Publication number
- CN203979103U CN203979103U CN201420235958.4U CN201420235958U CN203979103U CN 203979103 U CN203979103 U CN 203979103U CN 201420235958 U CN201420235958 U CN 201420235958U CN 203979103 U CN203979103 U CN 203979103U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- attachment hole
- major part
- microcephaly
- piston attachment
- 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 - Lifetime
Links
- 208000004141 microcephaly Diseases 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 6
- 210000003625 skull Anatomy 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of connecting rod.Described connecting rod comprises: major part, microcephaly and connect described major part and microcephaly's connecting rod shank, and described microcephaly comprises: top; Below, itself and described top are spaced apart, and are connected with one end of described connecting rod shank; And connecting body, it connects described bottom and upper segment, wherein, be provided with the piston attachment hole that runs through described connecting body on described microcephaly, the size of described top on the axial direction of described piston attachment hole is less than described size on the axial direction of described piston attachment hole below; On the axial direction of described piston attachment hole, described connecting body is identical with the width of top at the width at first half place, and then, arc transition is to identical with following width.In the time adopting said structure, for the top of bearing less load, less width is set, reduce connecting rod weight, reduce materials consumption.
Description
Technical field
The utility model relates to technical field of engines, especially relates to a kind of connecting rod, especially for the connecting rod of petrol engine.
Background technique
Connecting rod is one of important spare part of petrol engine, and it is bearing the important function that the straight reciprocating motion of piston is converted to crankshaft rotating motion.
In the prior art, connecting rod is made up of connecting rod shank and the major part and the microcephaly that are connected to connecting rod shank two ends.Existing connecting rod shank microcephaly is roughly cylindrical, top with there is below identical width.This structural type weight is larger, and waste material.
Model utility content
The purpose of this utility model is to provide a kind of connecting rod, overcomes or at least alleviates the problems referred to above of the prior art.
For this reason, the utility model provides a kind of connecting rod, and described connecting rod comprises: major part, microcephaly and connect described major part and microcephaly's connecting rod shank, and described microcephaly comprises: top; Below, itself and described top are spaced apart, and are connected with one end of described connecting rod shank; And connecting body, it connects described bottom and upper segment, wherein, be provided with the piston attachment hole that runs through described connecting body on described microcephaly, the size of described top on the axial direction of described piston attachment hole is less than described size on the axial direction of described piston attachment hole below; On the axial direction of described piston attachment hole, described connecting body is identical with the width of top at the width at first half place, and then, arc transition is to identical with following width.
Preferably, the difference of the size of described top on the axial direction of described piston attachment hole and described size on the axial direction of described piston attachment hole is below in the scope of 8 millimeters to 10 millimeters.
Preferably, described connecting rod further comprises small end bushing, and described small end bushing is arranged in described piston attachment hole, and with described piston attachment hole interference fit.
Preferably, described microcephaly's outer surface is circumferential outer surface, and described circumferential outer surface is sealing surfaces.
Preferably, described microcephaly and described connecting rod shank join domain are provided with reinforcement structure.
Preferably, the size of described connecting body on the axial direction of described piston attachment hole from joint, described top to smoothly increasing with described following joint.
Preferably, described top is with respect to the Central Symmetry face symmetry of described connecting rod shank, and wherein, described Central Symmetry face is perpendicular to the axis of described piston attachment hole.
Preferably, described major part is with bent axle attachment hole, the axis of described bent axle attachment hole is parallel to the axis of described piston attachment hole, described major part comprises major part body and large skull, described bent axle attachment hole runs through described major part body and large skull, described major part body and described connecting rod shank are one-body molded, and described large skull is fixedly attached to described major part body, and the internal surface of described major part body and the internal surface of described large skull are smooth surface.
Preferably, described connecting rod further comprises bearing shell, and described bearing shell is arranged in described bent axle attachment hole, and the outer surface of described bearing shell and described bent axle attachment hole interference fit.
Preferably, described connecting rod is petrol engine connecting rod.
In use, inertial load is mainly born in the top of connecting rod small end, mainly bears below pressure of explosion load.Inertial load, much smaller than pressure of explosion load, therefore, in the time adopting said structure, arranges less width for the top of bearing less load, has reduced connecting rod weight, has reduced materials consumption.
Brief description of the drawings
Fig. 1 is according to the schematic diagram of the utility model one embodiment's connecting rod.
Fig. 2 is the schematic diagram of the major part of connecting rod shown in Fig. 1.
Fig. 3 is the microcephaly's of connecting rod shown in Fig. 1 schematic diagram.
Reference character:
| 1 | Microcephaly | 9 | Top |
| 2 | Piston attachment hole | 10 | Below |
| 3 | Connecting rod shank | 11 | Reinforced region |
| 4 | Major part | 12 | Major part body |
| 5 | Bent axle attachment hole | 13 | Large skull |
| 6 | Bearing shell | 14 | Circumferential outer surface |
| 7 | Bolt | 15 | Small end bushing |
| 8 | Connecting body | ? | ? |
Embodiment
For object, technological scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiments.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
Fig. 1 is according to the schematic diagram of the utility model one embodiment's connecting rod.Fig. 2 is the schematic diagram of the major part of connecting rod shown in Fig. 1.Fig. 3 is the microcephaly's of connecting rod shown in Fig. 1 schematic diagram.
In the illustrated embodiment, connecting rod is the connecting rod for motor, for the straight reciprocating motion of piston is converted to rotatablely moving of bent axle.Advantageously, described connecting rod is petrol engine connecting rod.
Diagram connecting rod has connecting rod shank 3, and the two ends of connecting rod shank 3 are respectively major part 4 and microcephaly 1.Be provided with reinforced region 11 at connecting rod shank 3 with microcephaly 1 join domain place.Reinforced region 11 makes connecting rod shank 3 and being connected of microcephaly 1 have higher intensity.Be understandable that, shape and the structure of reinforced region 11 are not limited to illustrated embodiment.
It is following 10 that the part that the microcephaly 1 of connecting rod is connected with connecting rod shank 3 is called, and microcephaly 1 is called top 9 with the following 10 relative and spaced the other ends.Particularly, following 10 parts that refer under microcephaly 1 the lower tangent plane that is positioned at piston attachment hole 2; Top 9 refers to the part on microcephaly 1 the upper tangent plane that is positioned at piston attachment hole 2.Top 9 interconnects by connecting body 8 with following 10.On microcephaly 1, be provided with piston attachment hole 2, for being connected with piston.As shown in the figure, piston attachment hole 2 runs through connecting body 8.
The size of top 9 on the axial direction (being the left and right directions in Fig. 1) of piston attachment hole 2 is less than following 10 sizes on the axial direction of piston attachment hole 2.Preferably, the difference of the size of the size and following 10 of top 9 on the axial direction of described piston attachment hole 2 on the axial direction of piston attachment hole 2 is in the scope of 8 millimeters to 10 millimeters.For example, the width of top 9 is 8 millimeters, and following 10 width is 18 millimeters or 16 millimeters.
It is to be noted, top 9 is except width (size in Fig. 1 on left and right directions) is less than following 10 width, the thickness (size in Fig. 1 on above-below direction) of top 9 can also be set to be less than following 10 thickness, further to reduce the use of top place material.In the case, microcephaly's peripheral shape will be no longer circular.
As shown in Figure 1, the size of connecting body 8 on the axial direction of described piston attachment hole from joint, described top to smoothly increasing with described following joint, on the above-below direction shown in Fig. 1, increase gradually from the top down.More particularly, connecting body 8 is substantially identical with the width of top 9 at the width at first half place, and then, arc transition is to identical with following 10 width.Advantageously, microcephaly 1 connecting body 8 is designed to right angle transition structure, for example, adopts a round-corner transition that radius is 9MM.Make the microcephaly can a forging molding by this kind of structure, reduced manufacturing procedure with respect to common wedge shape connecting rod, and can under the condition that does not reduce bearing area, reduce to greatest extent connecting rod weight.
Participate in Fig. 1, top 9 is with respect to the Central Symmetry face symmetry of connecting rod shank 3, and wherein, described Central Symmetry face is perpendicular to the axis of piston attachment hole 2.That is to say, the Central Symmetry face of connecting rod shank be perpendicular to Fig. 1 paper in point plane.
Referring to Fig. 3, described connecting rod further comprises small end bushing 15.Small end bushing 15 is arranged in piston attachment hole 2, and with piston attachment hole 2 interference fit.Small end bushing 15 is for being connected with wrist pin.As shown in Figure 3, microcephaly 1 circumferential outer surface 8 is sealing surfaces.Compared with prior art, this kind of structure cancelled the oilhole on microcephaly 1, simplified manufacturing procedure, and avoided oilhole stress around to concentrate.And adopt this kind of structure can rely on the gap between wrist pin and small end bushing 15 to ensure the lubricated of small end bushing.
Participate in Fig. 1 and Fig. 2, large headband 4 has bent axle attachment hole 5, and the axis of bent axle attachment hole 5 is parallel to the axis of piston attachment hole 2.Bent axle attachment hole 5 is for being connected with bent axle.
Referring to Fig. 2, major part 2 comprises major part body 12 and large skull 13.Major part body 12 and large skull 13 interconnect.Bent axle attachment hole 5 runs through major part body 12 and large skull 13.Major part body 12 is one-body molded with connecting rod shank 3, and large skull 13 is fixedly attached to major part body 12.The internal surface 13 of the internal surface of major part body 12 and large skull is smooth surface, that is to say, the internal surface of bent axle attachment hole 5 is smooth surface.
In bent axle attachment hole 5, be provided with bearing shell 6.Bearing shell 6 can be two fractions, for example, is divided into upper half-bearing and low brass; Also can be triplasy, for example, be divided into the sub-bearing shell of three 120 degree.Advantageously, the outer surface of bearing shell 6 and bent axle attachment hole 5 interference fit.Adopt this structure, cancelled the structure that tile groove is set in conventional design, reduced manufacturing procedure.Meanwhile, utilize magnitude of interference between bent axle attachment hole 5 and bearing shell to ensure the back pressure of bearing shell, ensure that bearing shell does not occur axially to collect together in link lever high-speed crankmotion.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment's technological scheme of the utility model.
Claims (9)
1. a connecting rod, comprising: major part, microcephaly and connect described major part and microcephaly's connecting rod shank, it is characterized in that, and described microcephaly comprises:
Top;
Below, itself and described top are spaced apart, and are connected with one end of described connecting rod shank; And
Connecting body, it connects described bottom and upper segment,
Wherein, be provided with the piston attachment hole that runs through described connecting body on described microcephaly, the size of described top on the axial direction of described piston attachment hole is less than described size on the axial direction of described piston attachment hole below;
On the axial direction of described piston attachment hole, described connecting body is identical with the width of top at the width at first half place, and then, arc transition is to identical with following width.
2. connecting rod according to claim 1, is characterized in that, the difference of the size of described top on the axial direction of described piston attachment hole and described size on the axial direction of described piston attachment hole is below in the scope of 8 millimeters to 10 millimeters.
3. connecting rod according to claim 1, is characterized in that, described connecting rod further comprises small end bushing, and described small end bushing is arranged in described piston attachment hole, and with described piston attachment hole interference fit.
4. connecting rod according to claim 1, is characterized in that, described microcephaly's outer surface is circumferential outer surface, and described circumferential outer surface is sealing surfaces.
5. connecting rod according to claim 1, is characterized in that, described microcephaly and described connecting rod shank join domain are provided with reinforcement structure.
6. connecting rod according to claim 1, is characterized in that, described top is with respect to the Central Symmetry face symmetry of described connecting rod shank, and wherein, described Central Symmetry face is perpendicular to the axis of described piston attachment hole.
7. connecting rod according to claim 1, it is characterized in that, described major part is with bent axle attachment hole, the axis of described bent axle attachment hole is parallel to the axis of described piston attachment hole, described major part comprises major part body and large skull, and described bent axle attachment hole runs through described major part body and large skull, and described major part body and described connecting rod shank are one-body molded, described large skull is fixedly attached to described major part body, and the internal surface of described major part body and the internal surface of described large skull are smooth surface.
8. connecting rod according to claim 7, is characterized in that, described connecting rod further comprises bearing shell, and described bearing shell is arranged in described bent axle attachment hole, and the outer surface of described bearing shell and described bent axle attachment hole interference fit.
9. connecting rod according to claim 1, is characterized in that, described connecting rod is petrol engine connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235958.4U CN203979103U (en) | 2014-05-09 | 2014-05-09 | A kind of connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235958.4U CN203979103U (en) | 2014-05-09 | 2014-05-09 | A kind of connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979103U true CN203979103U (en) | 2014-12-03 |
Family
ID=51976554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235958.4U Expired - Lifetime CN203979103U (en) | 2014-05-09 | 2014-05-09 | A kind of connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979103U (en) |
-
2014
- 2014-05-09 CN CN201420235958.4U patent/CN203979103U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180517 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191023 Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing treasure Car Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
|
| CX01 | Expiry of patent term |