CN102140946A - Lubrication structure of connecting rod large-head roller pin for dune buggy engine - Google Patents
Lubrication structure of connecting rod large-head roller pin for dune buggy engine Download PDFInfo
- Publication number
- CN102140946A CN102140946A CN 201110079233 CN201110079233A CN102140946A CN 102140946 A CN102140946 A CN 102140946A CN 201110079233 CN201110079233 CN 201110079233 CN 201110079233 A CN201110079233 A CN 201110079233A CN 102140946 A CN102140946 A CN 102140946A
- Authority
- CN
- China
- Prior art keywords
- crankcase
- bent axle
- hole
- bearing
- oil
- 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.)
- Granted
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a lubrication structure of a connecting rod large-head roller pin for a dune buggy engine. A right crankcase provided with a first inclined oil hole is buckled and fixed with a left crankcase, a second bearing is pressed in a bearing hole on the right crankcase and supports a right crank on which an axial oil channel, a radical oil channel and an inclined oil channel are arranged, a boss is integrally formed on the right end of the right crankcase, and an inner hole of the boss is concentric with the bearing hole on the right crankcase; and the inner end of the first inclined oil hole penetrates into the inner hole of the boss and communicated with the radical oil channel on the right crank. The lubrication structure meets the requirement on lubrication of the connecting rod large-head roller pin for the engine, air cylinder holes, a piston and piston ring moving pairs, and when improving the lubrication reliability of the connecting rod large-head roller pin and preventing the oil shortage, the lubrication structure reduces the processing and assembling difficulty of parts, reduces the cost of the engine and is especially suitable for batch production.
Description
Technical field
The invention belongs to the dune buggy engine technical field, specifically, the particularly lubricating structure of dune buggy engine connnecting rod big end needle roller.
Background technique
As shown in Figure 2, the left crankcase 1 and the right crankcase 2 of single cylinder dune buggy engine are connected and fixed by locating stud and bolt, be equipped with bearing hole on left and right crankcase 1,2, wherein press-fit clutch shaft bearing 3 in the bearing hole on the left crankcase 1, this clutch shaft bearing 3 supports mutually with left bent axle 5; Press-fit second bearing 4 in the bearing hole on the right crankcase 2, this second bearing 4 supports mutually with right bent axle 6.Described left and right bent axle 5,6 is connected with the major part of connecting rod 8 by crank pin 7, between the major part of this connecting rod 8 and the crank pin 7 needle roller 9 is housed.For lubricated connnecting rod big end and cylinder-bore, piston, piston ring kinematic pair, on crank pin 7, have oil channel hole 7a, this oil channel hole 7a communicates with oblique oil duct 6c on the right bent axle 6, also has the axial oil duct 6a and the radial direction oil 6b that communicate with each other on right bent axle 6.A little side cover 10 has been designed on the right side of right crankcase 2, and the right-hand member of right bent axle 6 passes from little side cover 10, and interference fit is pressed with lining 11 in the little side cover 10.Also offer one second inclined oil hole of air 10a on little side cover 10, this second inclined oil hole of air 10a is communicated with the first inclined oil hole of air 2a on the right crankcase 2.Because it is all very high that the processing of the matching hole of little side cover and assembly precision require, be easy to cause the matching hole of little side cover and the bearing hole decentraction on the right crankcase, cause little cover bush hole to ablate, rotate, originally the oilhole that is communicated with is stopped up, cause engine link major part needle roller to ablate because of oil starvation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dune buggy engine lubricating structure that can effectively prevent connnecting rod big end needle roller oil starvation.
Technological scheme of the present invention is as follows: a kind of lubricating structure of dune buggy engine connnecting rod big end needle roller, comprise left crankcase (1), right crankcase (2), clutch shaft bearing (3), second bearing (4), left side bent axle (5), right bent axle (6), crank pin (7), connecting rod (8) and needle roller (9), the right crankcase (2) that has first inclined oil hole of air (2a) is connected and fixed by locating stud and bolt with left crankcase (1), on left crankcase (1) and right crankcase (2), be equipped with bearing hole, wherein press-fit clutch shaft bearing (3) in the bearing hole on the left crankcase (1), this clutch shaft bearing (3) supports mutually with left bent axle (5); Press-fit second bearing (4) in the bearing hole on right crankcase (2), this second bearing (4) supports mutually with right bent axle (6), and have axial oil duct (6a) on the right bent axle (6), radial direction oil (6b) and oblique oil duct (6c), described left bent axle (5) is connected by the major part of crank pin (7) with connecting rod (8) with right bent axle (6), between major part of this connecting rod (8) and the crank pin (7) needle roller (9) is housed, its key is: the right-hand member at described right crankcase (2) is formed with boss (2b), the right-hand member of right bent axle (6) passes from the endoporus of this boss (2b), and the endoporus of boss (2b) is concentric with the bearing hole on the right crankcase (2); The inner of described first inclined oil hole of air (2a) connects to the endoporus of boss (2b), and is connected with radial direction oil (6b) on the right bent axle (6).
The present invention has cancelled little side cover and lining on the basis of conventional construction, right-hand member at right crankcase is provided with boss, first inclined oil hole of air on the right crankcase extends to this boss, and communicate with radial direction oil on the right bent axle, the engine lubricating oil that pumps after filter cleaner filters of oil pump is introduced radial direction oil on the right bent axle from first inclined oil hole of air like this, and through the axial oil duct on the right bent axle, oblique oil duct, oil channel hole from the crank pin enters the needle roller of connnecting rod big end at last, reach lubricated connnecting rod big end needle roller, lubricated cylinder-bore, piston, the purpose of piston ring kinematic pair has effectively prevented engine link major part needle roller oil starvation.The endoporus of boss is concentric with the bearing hole on the right crankcase, has reduced the processing and the difficulty of component, has reduced the cost of motor, has satisfied the batch process demand.
Manufacturing for convenience, help introducing lubricant oil, the angle that has 65 °～68 ° between the shaft axis of the center line of described first inclined oil hole of air (2a) and right bent axle (6), the outer end of first inclined oil hole of air (2a) connects to the circumferential lateral surface of right crankcase (2).
Beneficial effect: the present invention has satisfied the lubricated of engine link major part needle roller and cylinder-bore, piston, piston ring kinematic pair, when increasing connnecting rod big end needle roller lubricating reliability, preventing connnecting rod big end needle roller oil starvation, the processing and the assembling difficulty of component have been reduced, reduced the cost of motor, be particularly suitable for producing in batches.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of background technique.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, the present invention is made of left crankcase 1, right crankcase 2, clutch shaft bearing 3, second bearing 4, left bent axle 5, right bent axle 6, crank pin 7, connecting rod 8 and needle roller 9, wherein left crankcase 1 is connected and fixed by locating stud and bolt with right crankcase 2, forms crankcase body.Be provided with bearing hole on crankcase 1, press-fit clutch shaft bearing 3 in this bearing hole, clutch shaft bearing 3 supports mutually with left bent axle 5.On right crankcase 2, also be provided with bearing hole, press-fit second bearing, 4, the second bearings 4 in this bearing hole and support mutually with right bent axle 6.Described left bent axle 5 is connected by the major part of crank pin 7 with connecting rod 8 with right bent axle 6, between the major part of this connecting rod 8 and the crank pin 7 needle roller 9 is housed.
As can be known from Fig. 1, have the oil channel hole 7a of the needle roller 9 that lubricant oil can be led on crank pin 7, this oil channel hole 7a communicates with oblique oil duct 6c on the right bent axle 6, has axial oil duct 6a on right bent axle 6 vertically, and this axial oil duct 6a communicates with oblique oil duct 6c; Middle part at right bent axle 6 radially has radial direction oil 6b, and radial direction oil 6b is communicated with axial oil duct 6a.Right-hand member at described right crankcase 2 is formed with boss 2b, and the right-hand member of right bent axle 6 passes from the endoporus of this boss 2b, and the endoporus of boss 2b is concentric with the bearing hole on the right crankcase 2.On described right crankcase 2, also have the first inclined oil hole of air 2a, have 65 °～68 ° angle between the shaft axis of the center line of the first inclined oil hole of air 2a and right bent axle 6.The inner of the described first inclined oil hole of air 2a connects to the endoporus of boss 2b, and is connected with radial direction oil 6b on the right bent axle 6, and the outer end of the first inclined oil hole of air 2a connects to the circumferential lateral surface of right crankcase 2.
The present invention be realize so lubricated: the engine lubricating oil that oil pump pumps after filter cleaner filters is introduced radial direction oil 6b on the right bent axle from the first inclined oil hole of air 2a, and through the axial oil duct 6a on the right bent axle, oblique oil duct 6c, oil channel hole 7a from the crank pin enters the needle roller 9 of connnecting rod big end at last, reach lubricated connnecting rod big end needle roller, the purpose of lubricated cylinder-bore, piston, piston ring kinematic pair has effectively prevented the ablation that engine link major part needle roller causes because of oil starvation.
Claims (2)
1. the lubricating structure of a dune buggy engine connnecting rod big end needle roller, the right crankcase (2) that has first inclined oil hole of air (2a) is connected and fixed by locating stud and bolt with left crankcase (1), on left crankcase (1) and right crankcase (2), be equipped with bearing hole, wherein press-fit clutch shaft bearing (3) in the bearing hole on the left crankcase (1), this clutch shaft bearing (3) supports mutually with left bent axle (5); Press-fit second bearing (4) in the bearing hole on right crankcase (2), this second bearing (4) supports mutually with right bent axle (6), and have axial oil duct (6a) on the right bent axle (6), radial direction oil (6b) and oblique oil duct (6c), described left bent axle (5) is connected by the major part of crank pin (7) with connecting rod (8) with right bent axle (6), between major part of this connecting rod (8) and the crank pin (7) needle roller (9) is housed, it is characterized in that: the right-hand member at described right crankcase (2) is formed with boss (2b), the right-hand member of right bent axle (6) passes from the endoporus of this boss (2b), and the endoporus of boss (2b) is concentric with the bearing hole on the right crankcase (2); The inner of described first inclined oil hole of air (2a) connects to the endoporus of boss (2b), and is connected with radial direction oil (6b) on the right bent axle (6).
2. the lubricating structure of dune buggy engine connnecting rod big end needle roller according to claim 1, it is characterized in that: have 65 °～68 ° angle between the shaft axis of the center line of described first inclined oil hole of air (2a) and right bent axle (6), the outer end of first inclined oil hole of air (2a) connects to the circumferential lateral surface of right crankcase (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100792331A CN102140946B (en) | 2011-03-31 | 2011-03-31 | Lubrication structure of connecting rod large-head roller pin for dune buggy engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100792331A CN102140946B (en) | 2011-03-31 | 2011-03-31 | Lubrication structure of connecting rod large-head roller pin for dune buggy engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140946A true CN102140946A (en) | 2011-08-03 |
| CN102140946B CN102140946B (en) | 2012-08-08 |
Family
ID=44408707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100792331A Expired - Fee Related CN102140946B (en) | 2011-03-31 | 2011-03-31 | Lubrication structure of connecting rod large-head roller pin for dune buggy engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102140946B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346714A (en) * | 1993-06-10 | 1994-12-20 | Suzuki Motor Corp | Lubrication device for internal combustion engine |
| DE4437600A1 (en) * | 1994-10-20 | 1996-04-25 | Iav Motor Gmbh | External lubrication system for connecting rod bearings of two=stroke engine |
| US20010037775A1 (en) * | 2000-01-17 | 2001-11-08 | Nobuo Suzuki | Piston oil-cooling device in an engine |
| CN201053334Y (en) * | 2007-05-31 | 2008-04-30 | 重庆建设摩托车股份有限公司 | Lubrication structure of crankshaft connecting rod system |
| CN201202506Y (en) * | 2008-05-30 | 2009-03-04 | 翁光敏 | Motorcycle crankshaft connecting rod system with improved lubricant oil way |
| CN201953430U (en) * | 2011-03-31 | 2011-08-31 | 力帆实业(集团)股份有限公司 | Lubricating structure for large-end needle roller of connecting rod |
-
2011
- 2011-03-31 CN CN2011100792331A patent/CN102140946B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06346714A (en) * | 1993-06-10 | 1994-12-20 | Suzuki Motor Corp | Lubrication device for internal combustion engine |
| DE4437600A1 (en) * | 1994-10-20 | 1996-04-25 | Iav Motor Gmbh | External lubrication system for connecting rod bearings of two=stroke engine |
| US20010037775A1 (en) * | 2000-01-17 | 2001-11-08 | Nobuo Suzuki | Piston oil-cooling device in an engine |
| CN201053334Y (en) * | 2007-05-31 | 2008-04-30 | 重庆建设摩托车股份有限公司 | Lubrication structure of crankshaft connecting rod system |
| CN201202506Y (en) * | 2008-05-30 | 2009-03-04 | 翁光敏 | Motorcycle crankshaft connecting rod system with improved lubricant oil way |
| CN201953430U (en) * | 2011-03-31 | 2011-08-31 | 力帆实业(集团)股份有限公司 | Lubricating structure for large-end needle roller of connecting rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102140946B (en) | 2012-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8523726B2 (en) | Hybrid drive for a motor vehicle | |
| US20170227110A1 (en) | Method For Fixing A Bushing In A Through Bore Of A Gear Of The Idler Gear Assembly | |
| CN102478110A (en) | Oil pump arrangement in a transmission | |
| CN205605429U (en) | Automobile -used horizontal scroll compressor | |
| US20150078689A1 (en) | Journal bearing | |
| CN102052397B (en) | Combined rolling bearing and rotary machine | |
| CN107388004A (en) | A kind of lubricating oil pump | |
| CN201953430U (en) | Lubricating structure for large-end needle roller of connecting rod | |
| CN103912578A (en) | Engine thrust bearing shell | |
| CN102392711B (en) | Engine balance shaft oil pressure releasing structure | |
| CN102140946B (en) | Lubrication structure of connecting rod large-head roller pin for dune buggy engine | |
| US8327542B2 (en) | Method for the production of a drop-forged balancing shaft | |
| CN103392074A (en) | Coupling, rotor, and assembly for a pump | |
| CN105351133B (en) | A kind of oil lubricating formula high pressure variable pump camshaft | |
| US8602898B2 (en) | Shaft arrangement for a transmission | |
| CN106438287A (en) | Air pump capable of changing lubricating mode | |
| CN203500301U (en) | Rear power-taking structure of engine | |
| CN202301432U (en) | Idle wheel bearing and idle wheel assembly comprising same | |
| CN205780251U (en) | The connecting rob bushing of a kind of electromotor, connecting rod and electromotor | |
| CN214366352U (en) | Water pump assembly and engine with same | |
| CN217481357U (en) | Crankshaft for infinitely variable speed engine | |
| US11846294B1 (en) | Bearing housing assembly for a turbocharger | |
| CN204553523U (en) | Dry type bent axle | |
| CN204083157U (en) | The two clutch gearbox shaft system arrangement structure of a kind of dry type | |
| CN218669655U (en) | Swing cylinder crankshaft type radial plunger motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20200331 |