CN106677854A - Oil collecting structure of connecting rod small end - Google Patents
Oil collecting structure of connecting rod small end Download PDFInfo
- Publication number
- CN106677854A CN106677854A CN201710050022.2A CN201710050022A CN106677854A CN 106677854 A CN106677854 A CN 106677854A CN 201710050022 A CN201710050022 A CN 201710050022A CN 106677854 A CN106677854 A CN 106677854A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- small end
- oil
- rod small
- oil collecting
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/066—Connecting rod with passageways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/22—Internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses an oil collecting structure of a connecting rod small end. The oil collecting structure of the connecting rod small end comprises the connecting rod small end, connecting rod small end oil collecting grooves and an oil guiding groove. The connecting rod small end is in swinging connection with a piston through a connecting rod lining and a piston pin. The connecting rod small end oil collecting grooves are formed in the two sides of the top end of the connecting rod small end. The oil guiding groove is formed between the connecting rod small end oil collecting grooves in the two sides of the top end of the connecting rod small end for connecting the connecting rod small end oil collecting grooves in the two sides of the top end of the connecting rod small end. According to the oil collecting structure of the connecting rod small end, the oil guiding groove connecting the connecting rod small end oil collecting grooves is additionally arranged, lubricating oil scattering to the connecting rod small end from an oil returning hole of a piston inner cavity can be guided into the connecting rod small end oil collecting grooves through the oil guiding groove, and accordingly supply of lubricating oil to the connecting rod piston pin and the connecting rod lining is improved, and piston pin and lining lubricating is ensured; and the situation that due to relative swinging of the piston and a connecting rod, lubrication of the piston pin and the connecting rod lining is affected is avoided.
Description
Technical field
The present invention relates to engine lubrication field, more particularly to a kind of oil collecting structure of small end of connecting rod.
Background technology
As shown in figure 1, small end of connecting rod oil trap 1 designs the guide structure for opening up in order to provide lubrication to connecting rob bushing.
Connecting rob bushing and piston pin relative motion, its cutting oil for needing are mainly derived from piston cavity, and lubricating oil passes through piston
Inner chamber spill port 2 falls back to small end of connecting rod, is then incorporated into connecting rob bushing inner surface by small end of connecting rod oil trap 1, and lubrication connects
Bushing and piston pin.
Because connecting rod 3 swings (as shown in Figure 2) at work, cause piston cavity spill port 2 and small end of connecting rod oil-collecting
The relative position of groove 1 constantly changes, piston cavity spill port 2 and small end of connecting rod oil-collecting in top dead centre and lower dead center except piston
Groove 1 can be aligned and facilitate oil-feed, can all influence oil film to enter by small end of connecting rod oil trap in remaining stroke because of the swing of connecting rod
Enter connecting rob bushing, and then influence the lubrication of piston pin and connecting rob bushing.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of oil collecting structure of simple and reasonable small end of connecting rod, the small end of connecting rod
Oil collecting structure is additionally arranged the oil guide groove of connection small end of connecting rod oil trap so that piston cavity spill port trickles down the profit in small end of connecting rod
Lubricating oil can introduce small end of connecting rod oil trap by the oil guide groove, so as to improve the confession of connecting rod piston pin and connecting rob bushing lubricating oil
Give, it is ensured that piston pin lubricates with bushing；Avoid because piston and the opposing oscillatory influence piston pin of connecting rod and the profit of connecting rob bushing
It is sliding.
To achieve the above object, the invention provides a kind of oil collecting structure of small end of connecting rod, including：Small end of connecting rod, Qiang Tong
Cross connecting rob bushing and piston pin is connected with piston oscillation；Small end of connecting rod oil trap, its top for being opened in the small end of connecting rod respectively
End both sides；And oil guide groove, it is opened between the small end of connecting rod oil trap of small end of connecting rod top both sides, for connecting
State the small end of connecting rod oil trap of small end of connecting rod top both sides.
Preferably, in above-mentioned technical proposal, the external diameter of small end of connecting rod oil trap is less than or equal to the small end of connecting rod width
Half.
Preferably, in above-mentioned technical proposal, the section of oil guide groove is circular or square.
Preferably, in above-mentioned technical proposal, the width of the width less than or equal to the small end of connecting rod of oil guide groove, the Oil Guide
The depth of groove is 1~2.5mm.
Compared with prior art, the present invention has the advantages that：The oil collecting structure of the small end of connecting rod is additionally arranged connection
The oil guide groove of small end of connecting rod oil trap so that the lubricating oil that piston cavity spill port trickles down in small end of connecting rod can be by the Oil Guide
Groove introduces small end of connecting rod oil trap, so as to improve the supply of connecting rod piston pin and connecting rob bushing lubricating oil, it is ensured that piston pin and lining
Set lubrication；Avoid because piston and the opposing oscillatory influence piston pin of connecting rod and the lubrication of connecting rob bushing.
Brief description of the drawings
Fig. 1 is the structural representation of the oil collecting structure of existing small end of connecting rod.
Fig. 2 is the swinging structure schematic diagram of the oil collecting structure of existing small end of connecting rod.
Fig. 3 is the structural representation of the oil collecting structure of small end of connecting rod of the invention.
Fig. 4 is the swinging structure schematic diagram of the oil collecting structure of small end of connecting rod of the invention.
Fig. 5 is the small end of connecting rod main view partial structural diagram of the oil collecting structure of small end of connecting rod of the invention.
Fig. 6 is the small end of connecting rod overlooking the structure diagram of the oil collecting structure of small end of connecting rod of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
As shown in Figures 3 to 5, the oil collecting structure of the small end of connecting rod according to the specific embodiment of the invention is specifically included：
Small end of connecting rod 4 and the small end of connecting rod oil trap 5 of the top both sides of small end of connecting rod 4 is opened in respectively, and connection small end of connecting rod 4 is pushed up
The oil guide groove 6 of end both sides small end of connecting rod oil trap 5.Wherein, small end of connecting rod 4 is swung by connecting rob bushing and piston pin with piston 6
Connection, small end of connecting rod oil trap 5 is opened in the top both sides of the small end of connecting rod 4 respectively, and is connected by oil guide groove 6, for giving
Connecting rob bushing provides lubrication and designs the guide structure for opening up, and lubricating oil falls back to small end of connecting rod by piston cavity spill port 7
4, small end of connecting rod oil trap 5 is then introduced by the oil guide groove 6, then be incorporated into connecting rob bushing by small end of connecting rod oil trap 5
Surface, lubricates connecting rob bushing and piston pin.So as to improve the supply of connecting rod piston pin and connecting rob bushing lubricating oil, it is ensured that piston pin
Lubricated with bushing；Avoid because piston and the opposing oscillatory influence piston pin of connecting rod and the lubrication of connecting rob bushing.
Specifically, small end of connecting rod 4 is connected by connecting rob bushing and piston pin with the swing of piston 6, connecting rob bushing and piston
Pin relative motion, lubricating oil falls back to small end of connecting rod 4, is then incorporated into connecting rob bushing inner surface by piston cavity spill port 7,
Lubrication connecting rob bushing and piston pin.
Small end of connecting rod oil trap 5 is opened in the top both sides of the small end of connecting rod 4 respectively, for providing lubrication to connecting rob bushing
And the guide structure for opening up is designed, connecting rod swings at work, and piston cavity spill port 7 exists with small end of connecting rod oil trap 5
Piston aligns oil-feed in top dead centre and lower dead center.
As shown in Figure 6, it is preferred that the external diameter Φ of small end of connecting rod oil trap 5 is in the center on small end of connecting rod top, and its is small
In the half equal to small end of connecting rod width H1.
Oil guide groove 6 is offered between the small end of connecting rod oil trap 5 of the top both sides of small end of connecting rod 4 so that the connecting rod of both sides is small
Head oil trap 5 is connected by oil guide groove 6, and lubricating oil falls back to small end of connecting rod 4 by piston cavity spill port 7, then by this
Oil guide groove 6 introduces small end of connecting rod oil trap 5, then is incorporated into connecting rob bushing inner surface by small end of connecting rod oil trap 5, lubricates connecting rod
Bushing and piston pin.When the engine operates, piston mutually swings with connecting rod, although the differential seat angle of very little can cause piston cavity
Spill port 7 is not gone up with small end of connecting rod oil trap 5 pairs, but by setting up oil guide groove 6, piston effectively can be sprayed at into connecting rod small
The lubricating oil at crown end is oriented to and is drained to small end of connecting rod oil trap 5, so as to improve connecting rod piston pin with connecting rob bushing lubricating oil
Supply, it is ensured that piston pin lubricates with bushing；Avoid because piston influences piston pin with connecting rob bushing with the opposing oscillatory of connecting rod
Lubrication.
Preferably, the section of oil guide groove 6 is circular or square.Width H2≤the H1 of oil guide groove 6.The depth of oil guide groove 6 is 1
~2.5mm.
In addition, small end of connecting rod maximum bearing capacity is the power produced by piston explosion pressure, that is, produce in piston pin and connecting rod
Microcephaly downside, so starting oil guide groove 6 does not interfere with connecting rod strength.Under making full use of small end of connecting rod upper side pressure-bearing, downside
The characteristics of face receives pressure-bearing big.Can equally meet use requirement after opening up oil guide groove.
To sum up, the oil collecting structure of the small end of connecting rod is additionally arranged the oil guide groove of connection small end of connecting rod oil trap so that in piston
Chamber spill port trickle down small end of connecting rod lubricating oil can by the oil guide groove introduce small end of connecting rod oil trap, so as to improve connecting rod
The supply of piston pin and connecting rob bushing lubricating oil, it is ensured that piston pin lubricates with bushing；Avoid the relative pendulum with connecting rod because of piston
The lubrication of dynamic influence piston pin and connecting rob bushing.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of oil collecting structure of small end of connecting rod, it is characterised in that including：
Small end of connecting rod, is connected by force by connecting rob bushing and piston pin with piston oscillation；
Small end of connecting rod oil trap, its top both sides for being opened in the small end of connecting rod respectively；And
Oil guide groove, it is opened between the small end of connecting rod oil trap of small end of connecting rod top both sides, for connecting the connecting rod
The small end of connecting rod oil trap of microcephaly top both sides.
2. the oil collecting structure of small end of connecting rod according to claim 1, it is characterised in that the small end of connecting rod oil trap it is outer
Half of the footpath less than or equal to the small end of connecting rod width.
3. the oil collecting structure of small end of connecting rod according to claim 1, it is characterised in that the section of the oil guide groove is circle
Or it is square.
4. the oil collecting structure of small end of connecting rod according to claim 1, it is characterised in that the width of the oil guide groove less than etc.
In the width of the small end of connecting rod, the depth of the oil guide groove is 1~2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050022.2A CN106677854A (en) | 2017-01-23 | 2017-01-23 | Oil collecting structure of connecting rod small end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050022.2A CN106677854A (en) | 2017-01-23 | 2017-01-23 | Oil collecting structure of connecting rod small end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677854A true CN106677854A (en) | 2017-05-17 |
Family
ID=58860796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710050022.2A Pending CN106677854A (en) | 2017-01-23 | 2017-01-23 | Oil collecting structure of connecting rod small end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681302A (en) * | 2022-10-27 | 2023-02-03 | 北京理工大学 | Connecting rod with efficient oil collecting hole |
| CN115726859A (en) * | 2022-10-27 | 2023-03-03 | 北京理工大学 | Connecting rod oil collecting hole with self-adaptive non-return function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649213U (en) * | 1979-09-26 | 1981-05-01 | ||
| JP2000240421A (en) * | 1999-02-19 | 2000-09-05 | Kubota Corp | Lubricating device for engine piston |
| CN202280728U (en) * | 2011-10-19 | 2012-06-20 | 奇瑞汽车股份有限公司 | Engine connecting rod |
| CN202611789U (en) * | 2012-05-22 | 2012-12-19 | 广西玉柴机器股份有限公司 | Diesel engine piston connecting rod set |
| WO2016104171A1 (en) * | 2014-12-24 | 2016-06-30 | 三菱自動車工業株式会社 | Connecting rod and lubrication structure therefor |
| CN206386164U (en) * | 2017-01-23 | 2017-08-08 | 广西玉柴机器股份有限公司 | The oil collecting structure of small end of connecting rod |
-
2017
- 2017-01-23 CN CN201710050022.2A patent/CN106677854A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649213U (en) * | 1979-09-26 | 1981-05-01 | ||
| JP2000240421A (en) * | 1999-02-19 | 2000-09-05 | Kubota Corp | Lubricating device for engine piston |
| CN202280728U (en) * | 2011-10-19 | 2012-06-20 | 奇瑞汽车股份有限公司 | Engine connecting rod |
| CN202611789U (en) * | 2012-05-22 | 2012-12-19 | 广西玉柴机器股份有限公司 | Diesel engine piston connecting rod set |
| WO2016104171A1 (en) * | 2014-12-24 | 2016-06-30 | 三菱自動車工業株式会社 | Connecting rod and lubrication structure therefor |
| CN206386164U (en) * | 2017-01-23 | 2017-08-08 | 广西玉柴机器股份有限公司 | The oil collecting structure of small end of connecting rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681302A (en) * | 2022-10-27 | 2023-02-03 | 北京理工大学 | Connecting rod with efficient oil collecting hole |
| CN115726859A (en) * | 2022-10-27 | 2023-03-03 | 北京理工大学 | Connecting rod oil collecting hole with self-adaptive non-return function |
| CN115726859B (en) * | 2022-10-27 | 2024-08-16 | 北京理工大学 | Connecting rod oil collecting hole with self-adaptive non-return function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |