CN203374629U - Engine connecting rod - Google Patents
Engine connecting rod Download PDFInfo
- Publication number
- CN203374629U CN203374629U CN201320347330.9U CN201320347330U CN203374629U CN 203374629 U CN203374629 U CN 203374629U CN 201320347330 U CN201320347330 U CN 201320347330U CN 203374629 U CN203374629 U CN 203374629U
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- CN
- China
- Prior art keywords
- connecting rod
- oilhole
- oil
- shaft
- aperture
- 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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- Sliding-Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses an engine part and particularly discloses an engine connecting rod. The utility model provides the engine connecting rod which enables a small hole to be lubricated sufficiently. The engine connecting rod comprises a rod body, a connecting rod large end and a connecting rod small end which are arranged at the two ends of the rod body, wherein the connecting rod large end is provided with a large hole and the connecting rod small end is provided with a small hole; the engine connecting rod further comprises oil holes and an oil groove; the oil holes are arranged on the peripheral wall of the outer edge of the connecting rod small end and are communicated to the small hole; the oil groove is arranged on an annular inner wall of the small hole and is communicated with the oil holes. The oil groove is arranged so that lubricating oil entering from the oil holes can be stored in the oil groove; even if the engine connecting rod is operated to a position where the lubricating oil cannot enter the oil holes, the lubricating oil stored in the oil groove can exert the lubricating effect continuously. Meanwhile, the upper sections of the oil holes are in a frustum shape so that the lubricating oil can also be stored in the oil holes in the working process of the engine connecting rod to exert the good lubricating effect with the oil groove and continuously lubricate the small hole.
Description
Technical field
The utility model relates to a kind of engine components, especially a kind of motor connecting rod.
Background technique
The motor connecting rod is one of critical component of motor, and it is widely used in the motor of automobile and motorcycle, the effect of motor connecting rod be by the transmission of power of piston to bent axle, and the to-and-fro motion of piston is converted into to rotatablely moving of bent axle.The motor connecting rod requires reliable and stable in long-term use, so each position of motor connecting rod all needs to obtain enough lubricant oil.Then, in actual use, the aperture of motor connecting rod is the lubricant oil fuel feeding place of difficulty the most, and general way is to offer circular oilhole at the microcephaly place now, makes lubricant oil can enter in time aperture.Although this structure can solve a part of problem, but the intensity due to needs assurance motor connecting rod, it is very large that oilhole can not be opened, this just causes circular oilhole can not store more lubricant oil, when the motor connecting rod runs to lubricant oil and can't enter into the position of oilhole, aperture still can not get enough lubricated.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of aperture place that can make and obtains enough lubricated motor connecting rod.
The utility model solves the motor connecting rod that its technical problem adopts, the connecting rod tip and the wrist-pin end of connecting rod that comprise shaft and be arranged on described shaft two ends, be provided with macropore on described connecting rod tip, wrist-pin end of connecting rod is provided with aperture, also comprise oilhole and oil groove, described oilhole is arranged on the outer perisporium of wrist-pin end of connecting rod and is communicated to described aperture, and described oil groove is arranged on the annular inner wall of aperture and is communicated with described oilhole.
Further, described oil groove ringwise.
Further, described oilhole is comprised of epimere and hypomere, the big up and small down taper type of epimere that oilhole starts from the outer perisporium of wrist-pin end of connecting rod, and it is cylindrical that oilhole extends to the hypomere of aperture.
Further, described oilhole is provided with two, and two oilholes are symmetrical with the shaft axis.
Further, the angle a of described oilhole axis and shaft axis is 28～32 °.
Further, the cross section of described shaft is I-shaped, the junction rounding 5mm of the web of shaft and wing plate.
Further, the large end transition position rounding 5mm of described connecting rod tip and shaft.
Further, the small end transition position rounding 5mm of described wrist-pin end of connecting rod and shaft.
The beneficial effects of the utility model are: owing to being provided with oil groove, therefore the lubricant oil entered from oilhole can be stored in oil groove, even the motor connecting rod runs to lubricant oil can't enter into the position of oilhole the time, the performance lubrication that the lubricant oil of storing in oil groove also can continue.The epimere of oilhole is taper type simultaneously, therefore in the working procedure of motor connecting rod, in oilhole, also can store lubricant oil, the lubricant oil of storing in oilhole also can enter into the aperture of motor connecting rod in time, bring into play good lubrication together with oil groove, the continuous lubrication aperture.Oilhole can arrange two, so just can omnibearing lubricated aperture.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 be wrist-pin end of connecting rod partly cut open figure;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the C-C line sectional view of Fig. 3;
Component, position and numbering in figure: shaft 1, connecting rod tip 2, wrist-pin end of connecting rod 3, macropore 4, aperture 5, oilhole 6, hold transition position 7, small end transition position 8, oil groove 9, wing plate 11, web 12 greatly.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, connecting rod tip 2 and wrist-pin end of connecting rod 3 that the utility model comprises shaft 1 and is arranged on described shaft 1 two ends, be provided with macropore 4 on described connecting rod tip 2, wrist-pin end of connecting rod 3 is provided with aperture 5, also comprise oilhole 6 and oil groove 9, described oilhole 6 is arranged on the outer perisporium of wrist-pin end of connecting rod 3 and is communicated to described aperture 5, and described oil groove 9 is arranged on the annular inner wall of aperture 5 and is communicated with described oilhole 6.Oil groove 9 preferably ringwise, is offered along the hoop inwall of aperture 5.In use, at first the lubricant oil entered from aperture 5 enter into oil groove 9, and the part of lubricant oil is stored in oil groove 9, and what continue provides lubricated for aperture 5, and, because oil groove 9 itself is distributed in aperture 5 perisporiums, make like this lubricant oil better to be evenly distributed in aperture 5.The memory function of oil groove 9 also can continue for aperture 5 provides lubricant oil, improve lubrication effect.The cross section of oil groove 9 is preferably trapezoidal, and the opening of oil groove 9 is greater than bottom, can make like this lubricant oil spread and overflow gradually.
Concrete, as shown in Figure 2, described oilhole 6 is comprised of epimere and hypomere, the big up and small down taper type of epimere that oilhole 6 starts from the outer perisporium of wrist-pin end of connecting rod 3, and it is cylindrical that oilhole 6 extends to the hypomere of aperture 5.Oilhole 6 can be delivered to lubricant oil in aperture 5 as passage, so that aperture 5 places touch enough lubricant oil.Because the epimere of oilhole 6 is taper type, therefore in the working procedure of motor connecting rod, stored more lubricant oil in oilhole 6, even the motor connecting rod runs to lubricant oil can't enter into the position of oilhole 6 time, in oilhole 6, the lubricant oil of storage also can enter into the aperture 5 of motor connecting rod, continuous lubrication aperture 5 in time.The utility model is according to the stress distribution characteristics at aperture 5 places, and the aperture 5 places perforate larger at stress is less, larger than 3 perforates of small rod small end at stress, and the requirement of the lubricant oil that can furnish good supplies to so also can guarantee the requirement of strength of motor connecting rod.
More even for the lubricant oil that aperture 5 inwalls are obtained, as shown in Figure 2, described oilhole 6 is provided with two, and two oilholes 6 are symmetrical with shaft 1 axis.Preferably, the angle a of described oilhole 6 axis and shaft 1 axis is 28～32 °, generally adopts 30 ° to get final product.Adopt symmetric design can make the left and right part of oilhole 6 all can obtain lubricant oil, there is lubrication effect preferably.Oilhole is arranged on the top of wrist-pin end of connecting rod 3, to avoid main force area.
Concrete, as shown in Figure 4, the cross section of described shaft 1 is I-shaped, the junction rounding 5mm of the web 12 of shaft 1 and wing plate 11.The rounding of 5mm is more easily processed, without adopting special cutter.
Concrete, as shown in Figure 3, the large end transition position 7 rounding 5mm of described connecting rod tip 2 and shaft 1.The small end transition position 8 rounding 5mm of described wrist-pin end of connecting rod 3 and shaft 1.The rounding of 5mm is more easily processed, without adopting special cutter.
Claims (8)
1. motor connecting rod, the connecting rod tip (2) and the wrist-pin end of connecting rod (3) that comprise shaft (1) and be arranged on described shaft (1) two ends, be provided with macropore (4) on described connecting rod tip (2), wrist-pin end of connecting rod (3) is provided with aperture (5), it is characterized in that: also comprise oilhole (6) and oil groove (9), described oilhole (6) is arranged on the outer perisporium of wrist-pin end of connecting rod (3) and is communicated to described aperture (5), and described oil groove (9) is arranged on the annular inner wall of aperture (5) and is communicated with described oilhole (6).
2. motor connecting rod as claimed in claim 1, it is characterized in that: described oil groove (9) ringwise.
3. motor connecting rod as claimed in claim 1 or 2, it is characterized in that: described oilhole (6) is comprised of epimere and hypomere, the big up and small down taper type of epimere that oilhole (6) starts from the outer perisporium of wrist-pin end of connecting rod (3), it is cylindrical that oilhole (6) extends to the hypomere of aperture (5).
4. motor connecting rod as claimed in claim 3, it is characterized in that: described oilhole (6) is provided with two, and two oilholes (6) are symmetrical with shaft (1) axis.
5. motor connecting rod as claimed in claim 3, it is characterized in that: the angle a of described oilhole (6) axis and shaft (1) axis is 28～32 °.
6. motor connecting rod as claimed in claim 1, it is characterized in that: the cross section of described shaft (1) is I-shaped, the web (12) of shaft (1) and the junction rounding 5mm of wing plate (11).
7. motor connecting rod as claimed in claim 1, is characterized in that: large end transition position (7) the rounding 5mm of described connecting rod tip (2) and shaft (1).
8. motor connecting rod as claimed in claim 1, is characterized in that: small end transition position (8) the rounding 5mm of described wrist-pin end of connecting rod (3) and shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347330.9U CN203374629U (en) | 2013-06-17 | 2013-06-17 | Engine connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320347330.9U CN203374629U (en) | 2013-06-17 | 2013-06-17 | Engine connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374629U true CN203374629U (en) | 2014-01-01 |
Family
ID=49837158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320347330.9U Expired - Fee Related CN203374629U (en) | 2013-06-17 | 2013-06-17 | Engine connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159646A (en) * | 2018-02-15 | 2019-08-23 | 丰田自动车株式会社 | Connecting rod |
-
2013
- 2013-06-17 CN CN201320347330.9U patent/CN203374629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159646A (en) * | 2018-02-15 | 2019-08-23 | 丰田自动车株式会社 | Connecting rod |
| CN110159646B (en) * | 2018-02-15 | 2022-05-03 | 丰田自动车株式会社 | Connecting rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |