CN104454076A - Split type crankshaft connecting rod system with good lubricating effect - Google Patents
Split type crankshaft connecting rod system with good lubricating effect Download PDFInfo
- Publication number
- CN104454076A CN104454076A CN201410634275.0A CN201410634275A CN104454076A CN 104454076 A CN104454076 A CN 104454076A CN 201410634275 A CN201410634275 A CN 201410634275A CN 104454076 A CN104454076 A CN 104454076A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- pin
- groove
- hole
- bent axle
- 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
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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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a split type crankshaft connecting rod system with a good lubricating effect. The split type crankshaft connecting rod system comprises a connecting rod and a crankshaft connection box. The upper end of the connecting rod is rotatably connected with the lower end of a piston rod. A crankshaft connection cover comprises an upper crankshaft connection cover body and a lower crankshaft connection cover body located under the upper crankshaft connection cover body. The upper crankshaft connection cover body and the lower crankshaft connection cover body are detachably connected. One end of the bottom of the lower crankshaft connection cover body extends downwards obliquely and forms an oil throwing block. The lower crankshaft connection cover body and the oil throwing block are of an integrated structure. A connecting rod oil storage groove is formed in the inner wall of a groove located in the upper end of the connecting rod in the circumferential direction. Oil holes are further formed in the two side walls of the groove respectively. One end of each oil hole is communicated with the connecting rod oil storage groove, and the other end of each oil hole is communicated with a first pin hole. The split type crankshaft connecting rod system solves the problems that in the prior art, the connecting rod is prone to breaking due to the fact that the structure is complex, the quantity of needed compressed air is large, and the structure strength is insufficient due to the integration of the connecting rod and the piston rod.
Description
Technical field
The present invention relates to motor Component, specifically refer to the crankshaft & connecting of split type high lubricating effect.
Background technique
Crankshaft & connecting is the important arrangement components in crankcase structure, in the crankshaft & connecting of existing crankcase, what generally adopt is the structure that counterweight connects gear, the crankcase of this structure easily produces larger surface friction drag in crankcase runs up process, cause crankshaft-link rod to seize up, crankshaft-link rod frequently withstands shocks load greatly, makes crankshaft-link rod serious wear, cause the excessive temperature rise of crankshaft-link rod, occur that connecting rod breaks the phenomenon such as bar so that excessively heated axle.In addition, in bent axle working procedure, the lubrication connecting the piston rod pin of connecting rod and piston rod has material impact for the performance of overall engine, but in existing structure, the lubricating condition of piston rod pin is always poor, is difficult to satisfy the demand.In addition, because complex structure, pressurized air demand are comparatively large, connecting rod and piston rod one, and easily cause the problems such as the fracture of the not enough generation of structural strength.
Summary of the invention
For the problems referred to above that prior art exists, the object of this invention is to provide a kind of piston rod and connecting rod split and the crankshaft & connecting of high lubricating effect.
For achieving the above object, the present invention adopts following technological scheme: the crankshaft & connecting of split type high lubricating effect, comprise connecting rod and bent axle connecting cover, the upper end of described connecting rod has groove, two sidewalls of this groove has the first coaxial pin-and-hole respectively, the lower end of described piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in described groove, and the outer surface of the lower end of piston rod and the internal surface of groove have gap; Also comprise connecting pin, this connecting pin successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on the second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung; Described bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and described bent axle connection upper cover is connected lower cover with bent axle and removably connects; One end that described bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole; The inwall of described small end groove, circumference has connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of described oilhole is communicated with connecting rod oil storage tank, and the other end is communicated with the first pin-and-hole.
As optimization, the two ends of described connecting pin are provided with snap ring.
Relative to prior art, tool of the present invention has the following advantages: piston rod in prior art and connecting rod are integrally divided into piston rod and connecting rod two parts, and linked together by pivot pin, connecting rod opposing pistons bar can rotate, and to solve in prior art because complex structure, pressurized air demand are comparatively large, the problem such as the easy-rupturing caused by structural strength deficiency that connecting rod and piston rod integrally cause; The setting of connecting rod oil storage tank and oilhole, when motor is in rotary work state, get rid of oil clot and touch the machine oil in crankcase and make it splash, the machine oil of splashing is stored in oil storage tank, enters oilhole under the influence of centrifugal force, lubrication connecting pin and the first pin-and-hole.
Accompanying drawing explanation
Fig. 1 is the plan view of the crankshaft & connecting of split type high lubricating effect.
Fig. 2 is the enlarged view at Figure 1A place
Description of reference numerals: connecting rod 10, groove 11, connecting pin 12, bent axle connects upper cover 31, and bent axle connects lower cover 32, piston rod 40.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " top ", " end " " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
See Fig. 1 to Fig. 2, the crankshaft & connecting of split type high lubricating effect, comprises connecting rod and bent axle connecting cover.
The upper end of connecting rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the lower end of piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in the groove of small end, and the internal surface of the outer surface of small end and groove has gap.Also comprise connecting pin, this connecting pin is successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung, make connecting rod be that axle rotates with connecting pin in groove.
Bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and bent axle connection upper cover is connected lower cover with bent axle and removably connects.Bent axle connection upper cover is connected lower cover and is half nahlock with bent axle, bent axle connection upper cover is connected half nahlock of lower cover arranged on left and right sides with bent axle has vertical threaded coaxial hole, is respectively the first tapped hole and the second tapped hole.The bent axle connection upper cover of half nahlock is identical with the radius that bent axle connects lower cover, and the plane process polishing processing that two and half nahlocks are relative.Bent axle connect upper cover is connected with bent axle lower cover pass through through the first circular hole first connecting rod bolt and pass the second connecting rod bolt of the second circular hole, bent axle is connected upper cover and is connected lower cover with bent axle and links together.
Bent axle connects upper cover and is fixedly connected with the lower end of connecting rod, and connecting rod is connected upper cover with bent axle can be processed as entirety.One end that bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole, and when specifically implementing, bent axle is connected lower cover and gets rid of oil clot and is integrated by forging molding by aluminum alloy.
The inwall of small end groove, circumference has connecting rod oil storage tank, namely the cambered surface direction along the inwall of groove has connecting rod oil storage tank, the setting of connecting rod oil storage tank, the machine oil that splashes in crankcase can be made being stored in connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of oilhole is communicated with connecting rod oil storage tank, the other end is communicated with the first pin-and-hole, oilhole be mainly used for lubrication connecting pin and the first pin-and-hole.
The two ends of connecting pin are provided with snap ring, prevent connecting pin from deviating from from the second pin-and-hole and a pair first pin-and-holes.Load after in the second pin-and-hole and a pair first pin-and-holes at link pin and reinstall snap ring.The preferred forging clasp of snap ring, also can according to selecting bending clasp, back-action clasp, combined clasp, half and half clasp.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in right of the present invention will in book.
Claims (2)
1. the crankshaft & connecting of split type high lubricating effect, comprises connecting rod and bent axle connecting cover, it is characterized in that:
The upper end of described connecting rod has groove, and two sidewalls of this groove have the first coaxial pin-and-hole respectively, and the lower end of described piston rod is cylindrical structure, and the lower end of piston rod has the second pin-and-hole; The lower end of piston rod is arranged in described groove, and the outer surface of the lower end of piston rod and the internal surface of groove have gap; Also comprise connecting pin, this connecting pin successively through the first pin-and-hole on groove sidewall, the first pin-and-hole on the second pin-and-hole and another sidewall of groove, and connecting pin and the first pin-and-hole and the second pin-and-hole Spielpassung;
Described bent axle connecting cover comprises bent axle connection upper cover and is connected lower cover with the bent axle be positioned at below it, and described bent axle connection upper cover is connected lower cover with bent axle and removably connects;
One end that described bent axle connects bottom lower cover extends obliquely, is formed and gets rid of oil clot, and bent axle connects lower cover and gets rid of oil clot and is structure as a whole; The inwall of described small end groove, circumference has connecting rod oil storage tank, and two sidewalls of groove are also respectively equipped with oilhole, and one end of described oilhole is communicated with connecting rod oil storage tank, and the other end is communicated with the first pin-and-hole.
2. the crankshaft & connecting of split type high lubricating effect as claimed in claim 1, is characterized in that: the two ends of described connecting pin are provided with snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634275.0A CN104454076A (en) | 2014-11-12 | 2014-11-12 | Split type crankshaft connecting rod system with good lubricating effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634275.0A CN104454076A (en) | 2014-11-12 | 2014-11-12 | Split type crankshaft connecting rod system with good lubricating effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454076A true CN104454076A (en) | 2015-03-25 |
Family
ID=52900737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634275.0A Pending CN104454076A (en) | 2014-11-12 | 2014-11-12 | Split type crankshaft connecting rod system with good lubricating effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246505A (en) * | 2015-06-08 | 2016-12-21 | 厦门科际精密器材有限公司 | Minipump |
| CN108026835A (en) * | 2015-09-04 | 2018-05-11 | 日产自动车株式会社 | The lubricating structure and lubricating method of the upper pin of the reciprocating block slider crank mechanism of internal combustion engine |
-
2014
- 2014-11-12 CN CN201410634275.0A patent/CN104454076A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246505A (en) * | 2015-06-08 | 2016-12-21 | 厦门科际精密器材有限公司 | Minipump |
| CN108026835A (en) * | 2015-09-04 | 2018-05-11 | 日产自动车株式会社 | The lubricating structure and lubricating method of the upper pin of the reciprocating block slider crank mechanism of internal combustion engine |
| CN108026835B (en) * | 2015-09-04 | 2019-08-06 | 日产自动车株式会社 | The lubricating structure and lubricating method of the upper pin of the reciprocating block slider crank mechanism of internal combustion engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |