CN207454526U - A kind of engine link - Google Patents
A kind of engine link Download PDFInfo
- Publication number
- CN207454526U CN207454526U CN201721537936.3U CN201721537936U CN207454526U CN 207454526 U CN207454526 U CN 207454526U CN 201721537936 U CN201721537936 U CN 201721537936U CN 207454526 U CN207454526 U CN 207454526U
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- connecting rod
- bearing shell
- rod body
- hole
- stub end
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Abstract
The utility model provides a kind of engine link, it is related to engine fittings field, including gonnecting rod body, connecting rod cap, bearing shell and bolt, one end of gonnecting rod body is connected with small head end, the other end is connected with stub end, stub end is bolted to connection with connecting rod cap, and for bolted threaded hole through stub end and connecting rod cap on the stub end and connecting rod cap, bolt is fixedly connected after sequentially passing through the threaded hole on stub end and connecting rod cap from top to bottom with nut；The gonnecting rod body cuts with chamfering respectively with small head end junction front and rear sides；Gap is provided with inwardly at left and right sides of the stub end and connecting rod cap junction；For reducing contact area, contact stress is improved；The gonnecting rod body and the width of the lower face of major part end in contact are narrower than the width for the upper surface that stub end is contacted with gonnecting rod body；So it is also to reduce gonnecting rod body and the area of major part end in contact, proof stress；The structure design of the utility model is reasonable, can greatly improve the stability of link mechanism connection.
Description
Technical field
The present invention relates to engine fittings technical fields, and in particular to a kind of engine link.
Background technology
Piston and bent axle are connected during connecting rod, and active force suffered by piston is transmitted to bent axle, the reciprocating motion of piston is changed
For the rotary motion of bent axle, it is made of gonnecting rod body, connecting rod cap, lining of connecting rod small end, big end bearing shell and screw etc..Even
Bar group is born the gas load that piston pin transmits and itself is swung and the effect of piston group reciprocal inertia force, these power it is big
Small and direction is all periodically variable.Therefore connecting rod such as is compressed, is stretched at the alternate load effects.Connecting rod must have enough
Intensity and the rigidity of structure.Fatigue strength deficiency often causes gonnecting rod body or connecting-rod bolts to be broken, and then generates what complete machine was destroyed
Major accident.If insufficient rigidity, it will cause body of rod flexural deformation and the mistake of big end circle deformations, cause piston, cylinder, axis
Hold the eccentric wear with crank-pin etc.
In view of this, it is necessary to make improvement.
The content of the invention
The present invention provides a kind of engine link, the stable connection of connecting rod can be greatly improved.
A kind of engine link, including gonnecting rod body, connecting rod cap, bearing shell and bolt, one end of gonnecting rod body is connected with small head end,
The other end is connected with stub end, and stub end is bolted to connection with connecting rod cap, and spiral shell is used on the stub end and connecting rod cap
The threaded hole connect is tethered through stub end and connecting rod cap, bolt sequentially passes through the threaded hole on stub end and connecting rod cap from top to bottom
It is fixedly connected afterwards with nut；
The gonnecting rod body cuts with chamfering respectively with small head end junction front and rear sides；
Gap is provided with inwardly at left and right sides of the stub end and connecting rod cap junction；The gonnecting rod body is terminated with major part
The width of tactile lower face is narrower than the width for the upper surface that stub end is contacted with gonnecting rod body；So be also reduce gonnecting rod body and
The area of major part end in contact, proof stress；
Further include grease structure, be arranged at gonnecting rod body, connecting rod cap, small head end, in stub end.
Further, the threaded hole on the gonnecting rod body is counterbore.
Further, the bolt is stud bolt.
Further, the bearing shell is divided into the first bearing shell and the second bearing shell,
First bearing shell is located on stub end inner ring surface, and for connecting the trunnion of bent axle, second bearing shell is located at microcephaly
It holds on inner ring surface, for connecting piston pin；The first oil groove is offered on stub end inner ring surface, is offered on first bearing shell
One through hole, first through hole make first oil groove be connected with the inner ring surface of the first bearing shell；It is offered on the small head end inner ring surface
Second oil groove, second bearing shell are equipped with the second through hole, and the second through hole makes the inner ring surface of second oil groove and the second bearing shell
Connection；The oil duct of the first oil groove of connection and the second oil groove is offered inside the connecting rod.
Further, first oil groove is opened on the semi-ring surface of connecting rod cap one side, and the both ends extension of the first oil groove
To the semi-ring surface both ends of gonnecting rod body；First bearing shell is two-half structure, and wherein half is located on the semi-ring surface of gonnecting rod body, separately
Half is located on the semi-ring surface of connecting rod cap, and the first through hole is only opened on half of bearing shell of connecting rod cap one side.
Further, the both ends of first oil groove are respectively by being opened in vivo two inclined oil hole of air of connecting rod and the oil
Road connects, the tangent setting in both ends of two inclined oil hole of air and first oil groove.
Further, the first through hole is set for the circumferential uniform intervals of multiple half of bearing shell along on connecting rod cap.
The advantage of the invention is that：By setting through hole, cooperation is attached using screw bolt and nut, can cause bolt
Length can measure；Gonnecting rod body cuts with chamfering respectively with small head end junction front and rear sides；
Gap is provided with inwardly at left and right sides of stub end and connecting rod cap junction；For reducing contact area, raising connects
Touch stress；The width of gonnecting rod body and the lower face of major part end in contact is than the width of upper surface that stub end is contacted with gonnecting rod body
It is narrow；So it is also to reduce gonnecting rod body and the area of major part end in contact, proof stress；Cross first through hole, the first oil groove, oil duct,
Lubricating oil between connecting rod and main bearing journal is introduced the annulus between connecting rod and piston pin by the second oil groove and the second through hole
In gap, lubricating oil permeation pathway is simple and efficient, and can significantly promote the lubricant effect of connecting rod two end.
Description of the drawings
Fig. 1 is dimensional structure diagram of the present invention；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is front sectional view of the present invention；
Fig. 4 is the enlarged drawing of lower half in Fig. 3.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts belong to the scope of protection of the invention.
With reference to attached drawing 1- Fig. 4, a kind of engine link of the present invention including gonnecting rod body 1, connecting rod cap 2, bearing shell and bolt 3, connects
One end of the body of rod 1 is connected with small head end 4, and the other end is connected with stub end 5, and stub end 5 is fixed with connecting rod cap 2 by bolt 3 to be connected
It connects, the threaded hole connected on the stub end 5 and connecting rod cap 2 for bolt 3 is through stub end 5 and connecting rod cap 2, and bolt 3 is from upper
It is fixedly connected after the threaded hole on stub end 5 and connecting rod cap 2 is sequentially passed through under with nut 6, via design, it is convenient to bolt
Length measures；
The gonnecting rod body 1 cuts with chamfering 104 respectively with small 4 junction front and rear sides of head end；
Gap 502 is provided with inwardly at left and right sides of the stub end 5 and 2 junction of connecting rod cap；For reducing contact surface
Product improves contact stress；
The width for the lower face that the gonnecting rod body 1 is contacted with stub end 5 is than upper end that stub end 5 is contacted with gonnecting rod body 1
The width in face is narrow；So it is also to reduce gonnecting rod body and the area of major part end in contact, proof stress；
Further include grease structure, be arranged at gonnecting rod body 1, connecting rod cap 2, small head end 4, in stub end 5.
Further, the threaded hole on the gonnecting rod body 1 is counterbore, improves stable connection；
Further, the bolt 3 is stud bolt.
Further, the bearing shell is divided into the first bearing shell 7 and the second bearing shell 8, and the first bearing shell 7 is located at 5 inner ring surface of stub end
On, for connecting the trunnion of bent axle, second bearing shell 8 is located on small 4 inner ring surface of head end, for connecting piston pin；Major part
It holds and the first oil groove 51 is offered on 5 inner ring surfaces, first through hole 71 is offered on first bearing shell 7, first through hole 71 makes described
First oil groove 51 is connected with the inner ring surface of the first bearing shell 7；Offer the second oil groove 41 on 4 inner ring surface of small head end, described
Two bearing shells 8 are equipped with the second through hole 81, and the second through hole 81 connects second oil groove 41 and the inner ring surface of the second bearing shell 8；Institute
State the oil duct 9 that the first oil groove 51 of connection and the second oil groove 41 are offered inside connecting rod 1.
Further, first oil groove 51 is opened on the semi-ring surface of 2 one side of connecting rod cap, and the both ends of the first oil groove 51
Extend to the semi-ring surface both ends of gonnecting rod body 1；First bearing shell 7 is two-half structure, and wherein half is located at the semi-ring of gonnecting rod body 1
On face, the other half is located on the semi-ring surface of connecting rod cap 2, and the first through hole 71 is only opened in half of bearing shell of 2 one side of connecting rod cap
On.
Further, the both ends of first oil groove 51 respectively by two inclined oil hole of air 10 being opened in gonnecting rod body 1 with
The oil duct 9 connects, the tangent setting in both ends of two inclined oil hole of air 10 and first oil groove 51.
Further, the first through hole 71 is set for the circumferential uniform intervals of multiple half of bearing shell along on connecting rod cap 2.
The advantage of the invention is that：By setting through hole, cooperation is attached using screw bolt and nut, can cause bolt
Length can measure；Gonnecting rod body cuts with chamfering respectively with small head end junction front and rear sides；
Gap is provided with inwardly at left and right sides of stub end and connecting rod cap junction；For reducing contact area, raising connects
Touch stress；The width of gonnecting rod body and the lower face of major part end in contact is than the width of upper surface that stub end is contacted with gonnecting rod body
It is narrow；So it is also to reduce gonnecting rod body and the area of major part end in contact, proof stress；Cross first through hole, the first oil groove, oil duct,
Lubricating oil between connecting rod and main bearing journal is introduced the annulus between connecting rod and piston pin by the second oil groove and the second through hole
In gap, lubricating oil permeation pathway is simple and efficient, and can significantly promote the lubricant effect of connecting rod two end.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to foregoing each implementation
Technical solution recorded in example modifies or carries out equivalent substitution to which part technical characteristic；And these modification or
It replaces, the essence of appropriate technical solution is not made to depart from the spirit and scope of various embodiments of the present invention technical solution.
Claims (7)
1. a kind of engine link, including gonnecting rod body, connecting rod cap, bearing shell and bolt, one end of gonnecting rod body is connected with small head end, separately
One end is connected with stub end, and stub end is bolted to connection with connecting rod cap, which is characterized in that the stub end and connecting rod cap
Upper to run through stub end and connecting rod cap for bolted threaded hole, bolt is sequentially passed through on stub end and connecting rod cap from top to bottom
Threaded hole after be fixedly connected with nut；
The gonnecting rod body cuts with chamfering respectively with small head end junction front and rear sides；
Gap is provided with inwardly at left and right sides of the stub end and connecting rod cap junction；
The width of the gonnecting rod body and the lower face of major part end in contact is than the width of upper surface that stub end is contacted with gonnecting rod body
It is narrow；
Further include grease structure, be arranged at gonnecting rod body, connecting rod cap, small head end, in stub end.
2. a kind of engine link according to claim 1, which is characterized in that the threaded hole on the gonnecting rod body is heavy
Hole.
3. a kind of engine link according to claim 1, which is characterized in that the bolt is stud bolt.
4. a kind of engine link according to claim 1, which is characterized in that the bearing shell is divided into the first bearing shell and second
Bearing shell,
First bearing shell is located on stub end inner ring surface, and for connecting the trunnion of bent axle, second bearing shell is located in small head end
On anchor ring, for connecting piston pin；The first oil groove is offered on stub end inner ring surface, it is logical that first is offered on first bearing shell
Hole, first through hole make first oil groove be connected with the inner ring surface of the first bearing shell；Second is offered on the small head end inner ring surface
Oil groove, second bearing shell are equipped with the second through hole, and the second through hole makes second oil groove be connected with the inner ring surface of the second bearing shell；
The oil duct of the first oil groove of connection and the second oil groove is offered inside the connecting rod.
5. a kind of engine link according to claim 4, which is characterized in that first oil groove is opened in connecting rod cap one
On the semi-ring surface of side, and the both ends of the first oil groove extend to the semi-ring surface both ends of gonnecting rod body；First bearing shell is two halves formula knot
Structure, wherein half are located on the semi-ring surface of gonnecting rod body, the other half is located on the semi-ring surface of connecting rod cap, and the first through hole only opens up
On half of bearing shell of connecting rod cap one side.
6. a kind of engine link according to claim 5, which is characterized in that the both ends of first oil groove pass through respectively
It is opened in vivo two inclined oil hole of air of connecting rod to connect with the oil duct, the both ends phase of two inclined oil hole of air and first oil groove
Cut setting.
7. a kind of engine link according to claim 6, which is characterized in that the first through hole is multiple along connecting rod cap
On half of bearing shell circumferential uniform intervals set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721537936.3U CN207454526U (en) | 2017-11-17 | 2017-11-17 | A kind of engine link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721537936.3U CN207454526U (en) | 2017-11-17 | 2017-11-17 | A kind of engine link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454526U true CN207454526U (en) | 2018-06-05 |
Family
ID=62280120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721537936.3U Active CN207454526U (en) | 2017-11-17 | 2017-11-17 | A kind of engine link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664154A (en) * | 2017-11-17 | 2018-02-06 | 安庆中船柴油机有限公司 | A kind of engine link |
-
2017
- 2017-11-17 CN CN201721537936.3U patent/CN207454526U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664154A (en) * | 2017-11-17 | 2018-02-06 | 安庆中船柴油机有限公司 | A kind of engine link |
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