CN102168593A - Crankshaft lubrication structure for general engine - Google Patents
Crankshaft lubrication structure for general engine Download PDFInfo
- Publication number
- CN102168593A CN102168593A CN 201110115376 CN201110115376A CN102168593A CN 102168593 A CN102168593 A CN 102168593A CN 201110115376 CN201110115376 CN 201110115376 CN 201110115376 A CN201110115376 A CN 201110115376A CN 102168593 A CN102168593 A CN 102168593A
- Authority
- CN
- China
- Prior art keywords
- upper box
- oil
- resuscitation apparatus
- spindle hole
- hole
- 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
Abstract
The invention relates to a crankshaft lubrication structure for a general engine, which relates to the field of the lubrication structure for lubricating a crankshaft in a box body on the engine. The crankshaft lubrication structure is characterized in that: the lubrication structure which consists of a respirator inlet (20) of a respirator (40), a primary sedimentation oil pool (25), an oil return oblique hole (26), a spindle oil seal small cavity (39), a spindle oil return groove (28) of an upper box body, and a crankcase (34) and is used for lubricating the crankshaft (4) in a spindle hole (27) of the upper box body is arranged in the upper box body (2), and the oil return oblique hole (26) is connected between the primary sedimentation oil pool (25) and the spindle oil seal small cavity (39); and the spindle oil seal small cavity (39) is enclosed by an oil seal (3), the crankshaft (4) and the spindle hole (27) of the upper box body. The crankshaft lubrication structure for the general engine can be used for lubricating the crankshaft in the spindle hole of the upper box body, and has the advantages of simple structure and good lubrication effect.
Description
Technical field
General purpose engine of the present invention relates to the structure that motor upper box inside crankshaft is lubricated with the crankshaft lubrication structure, belongs to general purpose engine and uses crankshaft lubrication structure field.
Background technique
General purpose engine was installed on by upper bearing and lower bearing with bent axle in the past, in the lower box spindle hole, bent axle by bearing last, do rolling friction in the lower box, if this class general purpose engine only is used for special purposes such as beating the grass of family garden lawn, for using in the gap, and do not need oversize total working life, because of bent axle has obtained oil lubricating in lower box, so if can in upper box, provide oil lubricating to engine crankshaft, then can save last, crankshaft bearing in the lower box, make bent axle last, can carry out sliding friction in the spindle hole of lower box, also can realize the normal operation of general purpose engine.
Summary of the invention
The purpose of this invention is to provide a kind of general purpose engine crankshaft lubrication structure, machine oil is back to crankcase by resuscitation apparatus suction port, primary settling oil sump, oil return inclined hole, the little cavity of main shaft oil sealing, upper box spindle hole oil-return groove, and the purpose that provides machine oil to be lubricated to the bent axle that is installed in the upper box spindle hole then can be provided.
A kind of general purpose engine crankshaft lubrication structure, the lubricating structure that the bent axle in the upper box spindle hole that has resuscitation apparatus suction port, primary settling oil sump, oil return inclined hole and the little cavity of main shaft oil sealing, upper box spindle hole oil-return groove, crankcase by resuscitation apparatus to constitute on the upper box of motor is lubricated; The oil return inclined hole is communicated with between the primary settling oil sump bottom surface and the little cavity of main shaft oil sealing of primary settling oil sump; The little cavity of main shaft oil sealing of annular housing encloses structure by oil sealing, bent axle and upper box spindle hole and forms; Upper box spindle hole oil-return groove is opened on upper box spindle hole circumference.
General purpose engine of the present invention is described as follows with crankshaft lubrication structure Design principle:
When the piston in the general purpose engine is up in cylinder body, then in crankcase, form negative pressure, oil gas valve actuating push rod passage in upper box under suction function in the crankcase enters in the cylinder head cavity, oil gas enters into the primary settling oil sump through the resuscitation apparatus suction port again, oil return inclined hole in the primary settling oil sump underrun upper box of the cold oil one route primary settling oil sump bottom in the primary settling oil sump enters into the little cavity of main shaft oil sealing, be lubricated being installed in the bent axle that rotates in the upper box spindle hole through upper box spindle hole oil-return groove again, and be back in the crankcase; Resuscitation apparatus master sedimentation oil sump is gone into through the overflow of primary settling oil sump flow-off in another road of cold oil in the primary settling oil sump, and is back to crankcase by the resuscitation apparatus master spill port of resuscitation apparatus master sedimentation oil sump bottom.More than constitute the oil gas circulation that the oil gas in the crankcase constitutes by resuscitation apparatus in the general purpose engine upper box.
General purpose engine of the present invention is described as follows with the housing structure at crankshaft lubrication structure place:
The upper box mould assembling junction plane of the lower box mould assembling junction plane of lower box and upper box links into an integrated entity by casing mould assembling bolt; The piston that bent axle is installed by connecting rod is positioned at the cylinder body of upper box, and the crankshaft two end that is installed in upper box spindle hole and the lower box spindle hole is set with oil sealing.
The valve of installing by valve spring and valve collet in the cylinder head cavity on the valve actuating push rod passage top of upper box is installed in the cylinder body, and spark plug also is installed on the cylinder body.
Cylinder head cover and cylinder head cover sealing gasket are installed on the cylinder head by cylinder bolt.
On the upper box spindle hole circumference of upper box, have upper box spindle hole oil-return groove, upper box spindle hole next door design at upper box has resuscitation apparatus, the resuscitation apparatus suction port of the circle of resuscitation apparatus is positioned at valve block sealing surface center, there is pair resuscitation apparatus valve block to stop that the valve block of location stops boss in valve block sealing surface one side, oil gas is introduced interface by the oil gas of resuscitation apparatus and is entered through the resuscitation apparatus suction port, and the residual gas in the oil gas is discharged by the outlet of resuscitation apparatus residual gas, on a circle resuscitation apparatus sealing surface of resuscitation apparatus, add resuscitation apparatus sealing gasket and resuscitation apparatus cover plate, on resuscitation apparatus, have the resuscitation apparatus cover plate tapped hole is installed, so that on the resuscitation apparatus sealing surface, install resuscitation apparatus sealing gasket and resuscitation apparatus cover plate additional by screw.
On primary settling oil sump top primary settling oil sump flow-off is arranged, the cold oil that overflows flows into resuscitation apparatus master sedimentation oil sump, and the resuscitation apparatus master spill port through resuscitation apparatus master sedimentation oil sump bottom is back in the crankcase again.
In elementary oil sump boss one side the primary settling oil sump is arranged, enclosing structure in the resuscitation apparatus sealing surface has valve block sealing surface, resuscitation apparatus master sedimentation oil sump and primary settling oil sump.
The oil return inclined hole that primary settling oil sump underrun in the bottom of the primary settling oil sump on the upper box is connected is connected with the little cavity of main shaft oil sealing, the upper box spindle hole oil-return groove on the upper box spindle hole, in crankcase, under the suction function, cold oil is flow in the crankcase.
Between bent axle, oil sealing and the upper box spindle hole in the upper box, formed the annular little cavity of main shaft oil sealing, oil-sealing sleeve is contained in crankshaft two end.
This general purpose engine crankshaft lubrication structure, advantage is simple in structure, has guaranteed by the condensation machine oil from resuscitation apparatus the bent axle in the upper box spindle hole to be lubricated, high lubricating effect can be saved crankshaft bearing at crankshaft two end.
Description of drawings
Fig. 1: the general purpose engine that is constituted in the upper box 2 of general purpose engine and lower box 1 is with the cross-sectional schematic of the oil suction part-structure in the crankshaft lubrication structure.
Fig. 2: the cross-sectional schematic that in the upper box 2 of general purpose engine and lower box 1, is constituted to the lubricated backflow part-structure of bent axle 4.
Fig. 3: the local schematic top plan view of the upper box 2 of general purpose engine.
Fig. 4: be Fig. 3 midship section A-A cross-sectional schematic.
Fig. 5: be Fig. 3 midship section B-B cross-sectional schematic.
Fig. 6: be Fig. 3 midship section C-C cross-sectional schematic.
Embodiment
Referring to each accompanying drawing, a kind of general purpose engine crankshaft lubrication structure, the lubricating structure that the bent axle in the upper box spindle hole 27 4 is lubricated that has in the upper box 2 of motor that resuscitation apparatus suction port 20, primary settling oil sump 25, oil return inclined hole 26 and main shaft oil sealing loculus body 39, upper box spindle hole oil-return groove 28, crankcase 34 by resuscitation apparatus 40 constitute; Oil return inclined hole 26 is communicated with between the primary settling oil sump bottom surface 33 and main shaft oil sealing loculus body 39 of primary settling oil sump 25; The main shaft oil sealing loculus body 39 of annular housing encloses structure by oil sealing 3, bent axle 4 and upper box spindle hole 27 and forms; Upper box spindle hole oil-return groove 28 is opened on upper box spindle hole 27 circumference.
Referring to Fig. 1 and Fig. 2, the lower box mould assembling junction plane 37 of lower box 1 links into an integrated entity by casing mould assembling bolt 8 with the upper box mould assembling junction plane 36 of upper box 2; The piston 12 that bent axle 4 is installed by connecting rod 11 is positioned at the cylinder body of upper box 2, and bent axle 4 two ends that are installed in upper box spindle hole 27 and the lower box spindle hole are respectively installed with oil sealing 3.
The valve of installing by valve spring 14 and valve collet 15 in the cylinder head cavity 38 on valve actuating push rod passage 35 tops of upper box 2 17 is installed in the cylinder body, and spark plug 3 is installed on cylinder body.
Cylinder head cover 9 and cylinder head cover sealing gasket 10 are installed on the cylinder head by cylinder bolt 16.
On upper box spindle hole 27 circumference of upper box 2, have upper box spindle hole oil-return groove 28, resuscitation apparatus 40 is arranged in the design of upper box spindle hole 27 next doors of upper box 2.
Referring to Fig. 4, the resuscitation apparatus suction port 20 of resuscitation apparatus 40 is positioned at valve block sealing surface 19 centers of ring, there is valve block to stop boss 18 in valve block sealing surface 19 1 sides, on a circle resuscitation apparatus sealing surface 23 of resuscitation apparatus 40, be added with resuscitation apparatus sealing gasket and resuscitation apparatus cover plate, on resuscitation apparatus 40, have the resuscitation apparatus cover plate tapped hole 29 is installed; Oil gas is introduced interface 31 by the oil gas of resuscitation apparatus 40 and is entered through resuscitation apparatus suction port 20, and the residual gas in the oil gas is discharged by resuscitation apparatus residual gas outlet 32.
Referring to Fig. 3, Fig. 5 and Fig. 6, on primary settling oil sump 25 tops primary settling oil sump flow-off 24 is arranged, the cold oil that overflows flows into resuscitation apparatus master sedimentation oil sump 21, and the resuscitation apparatus master spill port 22 through resuscitation apparatus master sedimentation oil sump 21 bottoms is back in the crankcase 34 again.
Primary settling oil sump 25 is in elementary oil sump boss 30 1 sides, and enclosing structure in the resuscitation apparatus sealing surface 23 of resuscitation apparatus 40 has valve block sealing surface 19, resuscitation apparatus master sedimentation oil sump 21 and primary settling oil sump 25.
As Fig. 1 and shown in Figure 6, be connected with main shaft oil sealing loculus body 39, upper box spindle hole oil-return groove 28 on the upper box spindle hole 27 by the oil return inclined hole 26 that is connected in the primary settling oil sump bottom surface 33 of primary settling oil sump 25 bottoms on the upper box 2, the cold oil behind the crankshaft lubrication is injected in the crankcase 34.
As shown in Figure 2, between bent axle 4, oil sealing 3 and the upper box spindle hole 27 of upper box 2, formed annular main shaft oil sealing loculus body 39, oil sealing 3 is sleeved on bent axle 4 two ends.
Claims (4)
1. general purpose engine crankshaft lubrication structure, the lubricating structure that the bent axle (4) in the upper box spindle hole (27) that it is characterized in that having on the upper box (2) at motor resuscitation apparatus suction port (20), primary settling oil sump (25), oil return inclined hole (26) and the little cavity of main shaft oil sealing (39), upper box spindle hole oil-return groove (28), crankcase (34) by resuscitation apparatus (40) to constitute is lubricated; Oil return inclined hole (26) is communicated with between the primary settling oil sump bottom surface (33) and the little cavity of main shaft oil sealing (39) of primary settling oil sump (25); The little cavity of main shaft oil sealing (39) of annular housing encloses structure by oil sealing (3), bent axle (4) and upper box spindle hole (27) and forms; Upper box spindle hole oil-return groove (28) is opened on upper box spindle hole (27) circumference.
2. a kind of general purpose engine crankshaft lubrication structure according to claim 1 is characterized in that bent axle (4) two ends that are installed in upper box spindle hole (27) and the lower box spindle hole are respectively installed with oil sealing (3).
3. a kind of general purpose engine crankshaft lubrication structure according to claim 1, it is characterized in that resuscitation apparatus (40) being arranged in upper box spindle hole (27) the next door design of upper box (2), the resuscitation apparatus suction port (20) of resuscitation apparatus (40) is positioned at valve block sealing surface (19) center of ring, there is valve block to stop boss (18) in valve block sealing surface (19) one sides, and on resuscitation apparatus (40), has resuscitation apparatus cover plate installation tapped hole (29).
4. a kind of general purpose engine crankshaft lubrication structure according to claim 1 is characterized in that primary settling oil sump (25) is in elementary oil sump boss (30) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115376A CN102168593B (en) | 2011-05-05 | 2011-05-05 | Crankshaft lubrication structure for general engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115376A CN102168593B (en) | 2011-05-05 | 2011-05-05 | Crankshaft lubrication structure for general engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168593A true CN102168593A (en) | 2011-08-31 |
| CN102168593B CN102168593B (en) | 2012-09-26 |
Family
ID=44489891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110115376A Active CN102168593B (en) | 2011-05-05 | 2011-05-05 | Crankshaft lubrication structure for general engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102168593B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295402A (en) * | 2014-07-20 | 2015-01-21 | 中国北方发动机研究所(天津) | Crankshaft oil seal oil return structure suitable for internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491312A (en) * | 1990-08-02 | 1992-03-24 | Honda Motor Co Ltd | Lubricating device of two cycle engine |
| US6915770B2 (en) * | 2003-10-27 | 2005-07-12 | Chi-Fang Lu | Lubricating oil supplying structure of an engine |
| CN2835581Y (en) * | 2005-11-11 | 2006-11-08 | 昆明云内动力股份有限公司 | Oil-gas separated engine crankshaft case |
| US20100307448A1 (en) * | 2007-06-08 | 2010-12-09 | Husqvarna Ab | Lubrication system for a four-stroke engine |
| JP2010285884A (en) * | 2009-06-09 | 2010-12-24 | Fuji Heavy Ind Ltd | Lubricating device for engine |
| CN202055886U (en) * | 2011-05-05 | 2011-11-30 | 江苏林海动力机械集团公司 | Crankshaft lubricating structure for general engine |
-
2011
- 2011-05-05 CN CN201110115376A patent/CN102168593B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0491312A (en) * | 1990-08-02 | 1992-03-24 | Honda Motor Co Ltd | Lubricating device of two cycle engine |
| US6915770B2 (en) * | 2003-10-27 | 2005-07-12 | Chi-Fang Lu | Lubricating oil supplying structure of an engine |
| CN2835581Y (en) * | 2005-11-11 | 2006-11-08 | 昆明云内动力股份有限公司 | Oil-gas separated engine crankshaft case |
| US20100307448A1 (en) * | 2007-06-08 | 2010-12-09 | Husqvarna Ab | Lubrication system for a four-stroke engine |
| JP2010285884A (en) * | 2009-06-09 | 2010-12-24 | Fuji Heavy Ind Ltd | Lubricating device for engine |
| CN202055886U (en) * | 2011-05-05 | 2011-11-30 | 江苏林海动力机械集团公司 | Crankshaft lubricating structure for general engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295402A (en) * | 2014-07-20 | 2015-01-21 | 中国北方发动机研究所(天津) | Crankshaft oil seal oil return structure suitable for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102168593B (en) | 2012-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203097995U (en) | Cylinder cover oil way integration structure for micro-automobile engine | |
| CN2828328Y (en) | Lubricating system of engine | |
| CN203296864U (en) | Cylinder cover assembly with oil-gas separation device integrated | |
| CN104879183A (en) | Engine lubrication system | |
| CN101832252B (en) | Energy-saving automobile water-cooling air compressor | |
| CN201671797U (en) | Automobile water-cooling air compressor | |
| CN206092095U (en) | General gasoline engine pressure lubrication and cooling system and gasoline engine that has this system | |
| CN105221208B (en) | Engine lubrication system | |
| CN102168593B (en) | Crankshaft lubrication structure for general engine | |
| CN202055886U (en) | Crankshaft lubricating structure for general engine | |
| CN103670580B (en) | A kind of lubricating oil system of high-power diesel engine | |
| CN201031716Y (en) | Engine oil centrifugal filtration device of motorcycle engine | |
| CN201391343Y (en) | Engine oil filtration oil way structure of engine | |
| CN101943080B (en) | Motorcycle engine | |
| CN103206280A (en) | Lubricating oil path system of multi-cylinder aerodynamic engine | |
| CN104454075A (en) | Novel universal gasoline engine lubricating system | |
| CN202745959U (en) | Automobile engine oil filtration cooling and integrating structure and automobile | |
| CN101509406B (en) | Full-filtration type external filter element oil path of motorcycle engine | |
| CN105673136A (en) | Cylinder head oil-gas separation assembly and engine thereof | |
| CN109098875B (en) | Novel diesel engine front end box | |
| CN102758688B (en) | Structure of inserting partial bulge of engine gearbox into oil pan | |
| CN204253125U (en) | General gasoline engine self lubricating system | |
| CN101021172A (en) | Engine oil secondary filtering device for engine | |
| CN204693006U (en) | Oil pump | |
| CN109139173B (en) | Engine cooling and lubricating system |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU FUMA HIGH NEW POWER MACHINERY CO., LTD. Effective date: 20141201 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 225300 TAIZHOU, JIANGSU PROVINCE TO: 225320 TAIZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141201 Address after: 225320 No. 199 West Spring Road, Jiangsu, Taizhou Patentee after: Linhai Power Machinery Group Corp., Jiangsu Patentee after: JIANGSU FOMA HIGH-TECH POWER MACHINERY CO., LTD. Address before: 225300, No. 14, Tai nine road, Hailing District, Jiangsu, Taizhou Patentee before: Linhai Power Machinery Group Corp., Jiangsu |
|
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU FUMA HIGH NEW POWER MACHINERY CO., LTD. Free format text: FORMER NAME: LINHAI POWER MACHINERY GROUP CORP., JIANGSU |
|
| CP03 | Change of name, title or address |
Address after: 225320, 309, Zhenxing Road, Gaogang hi tech Industrial Park, Jiangsu, Taizhou Patentee after: JIANGSU FOMA HIGH-TECH POWER MACHINERY CO., LTD. Patentee after: Linhai Power Machinery Group Corp., Jiangsu Address before: 225320 No. 199 West Spring Road, Jiangsu, Taizhou Patentee before: Linhai Power Machinery Group Corp., Jiangsu Patentee before: JIANGSU FOMA HIGH-TECH POWER MACHINERY CO., LTD. |