CN105781782A - Scooter engine with balance shaft - Google Patents
Scooter engine with balance shaft Download PDFInfo
- Publication number
- CN105781782A CN105781782A CN201610261179.5A CN201610261179A CN105781782A CN 105781782 A CN105781782 A CN 105781782A CN 201610261179 A CN201610261179 A CN 201610261179A CN 105781782 A CN105781782 A CN 105781782A
- Authority
- CN
- China
- Prior art keywords
- crankcase
- trunnion shaft
- arc baffle
- baffle plate
- oil pump
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a scooter engine with a balance shaft. The scooter engine comprises a crankcase defined by a left crankcase body and a right crankcase body. An engine oil pump, a rotary crankshaft and the rotary balance shaft are mounted in the crankcase. The crankshaft is sleeved with a balance shaft driving gear. The balance shaft is sleeved with a balance shaft driven gear. The engine oil pump is sleeved with an engine oil pump driven gear. The balance shaft driving gear is engaged with the balance shaft driven gear. The balance shaft driven gear is engaged with the engine oil pump driven gear. A first arc baffle is arranged on the inner surface of the left crankcase body. A second arc baffle corresponding to the first arc baffle is arranged on the inner surface of the right crankcase body and provided with a first oil drainage port. A third arc baffle is arranged on the outer surface of the right crankcase body and provided with a second oil drainage port. By the adoption of the structure, the volume of the crankcase does not need to be increased, and vibration and noise of the scooter engine are reduced effectively; and gear transmission is adopted in the crank shaft, the balance shaft and the engine oil pump, reliability is improved, and the service life is prolonged.
Description
Technical field
The invention belongs to technical field of engines, be specifically related to a kind of the scooter engine with trunnion shaft.
Background technology
Scooter is a kind of vehicle between motorcycle and automobile, is a kind of popular vehicles.Trunnion shaft is widely used in motorcycle engine, it simple and practical, can effectively extenuate the car load vibration of motorcycle, improve the comfortableness driven.
But for scooter, limitation due to himself structure, compare the motorcycle of conventionally employed chain drive, it has strict requirement for electromotor volume size, existing the scooter engine is generally horizontal type structure, it is installed to bottom of frame, engine rear end is additionally provided with travelling gear, and lubricating oil pump is also required to utilize the sprocket wheel being set on bent axle to drive, big quantity space will certainly be taken, do not have redundant space that trunnion shaft is installed, thus the scooter engine vibration is big, have a strong impact on driver comfort, and sprocket wheel life-time service easily deforms upon, reliability is relatively low.Further, owing to adding trunnion shaft, the rotation of trunnion shaft certainly will cause machine oil to splash.
Therefore, designing a trunnion shaft that is provided with, adopt gear drive, vibrate little, comfortableness is high, and the scooter engine that reliability is high becomes the task of top priority.
Summary of the invention
For solving above technical problem, the present invention provides one to be provided with trunnion shaft, adopts the gear-driven the scooter engine with trunnion shaft.
For achieving the above object, technical solution of the present invention is as follows:
A kind of the scooter engine with trunnion shaft, including the crankcase surrounded by left crankcase and right crankcase, it is characterized by, and also includes: bent axle, is rotatably installed in described crankcase, and is arranged with trunnion shaft driving gear；Trunnion shaft, is rotatably installed in described crankcase, and is arranged with balance shaft driven gear wheel, and this balance shaft driven gear wheel engages with described trunnion shaft driving gear；Lubricating oil pump, is arranged in described crankcase, and is arranged with oil pump driven gear, and this oil pump driven gear engages with described balance shaft driven gear wheel；First circular arc baffle plate, is arranged on the inner surface of described left crankcase, and it partly wraps in the described trunnion shaft side away from described bent axle；Second circular arc baffle plate, is arranged on the inner surface of described right crankcase, and it partly wraps in the described trunnion shaft side away from described bent axle, and corresponding with described first circular arc baffle plate, is provided with the first drain tap on this second circular arc baffle plate；And three-arc baffle plate, it being arranged on the outer surface of described right crankcase, it partly wraps in the described lubricating oil pump side away from described bent axle, and is provided with the second drain tap.
Adopt above structure, trunnion shaft is installed when not increasing crankcase volume, effectively reduce vibrations and the noise of the scooter engine, increase the comfortableness of driving, the kind of drive between bent axle, trunnion shaft and lubricating oil pump is improved to by gear drive simultaneously, add reliability and service life, by arranging the first circular arc baffle plate and the second circular arc baffle plate, the two coordinates the machine oil splashed when having blocked trunnion shaft rotation, effectively reduce sputtering scope, also by arranging three-arc baffle plate, effectively reduce machine oil sputtering scope during lubricating oil pump work.
As preferably: described second circular arc baffle plate and right crankcase are separated to form separate cavities and oil back chamber from top to bottom, are provided with spill port in this oil back chamber.Adopt above structure, make the machine oil of the splashing that the first circular arc baffle plate and the second circular arc baffle plate block be refluxed by spill port.
As preferably: being provided with fuel feed hole on the side of described right crankcase, this fuel feed hole is connected by oil inlet passage with described lubricating oil pump.Adopt above structure, the lubricating oil pump pump housing need not be separately provided oil charging structure, under ensureing the premise that pump functional oil realizes, reduce the manufacturing cost of lubricating oil pump.
As preferably: the height of described first circular arc baffle plate is concordant with the seamed edge of described left crankcase, the height of described second circular arc baffle plate is concordant with the seamed edge of described right crankcase.Adopt above structure, effectively realize the machine oil sputtered when closure trunnion shaft rotates.
As preferably: be all arranged with bearing on described bent axle and trunnion shaft.Adopt above structure, effectively reduce frictional force, it is ensured that reliability when bent axle and trunnion shaft high-speed rotation.
As preferably: the one end passing described right crankcase at described trunnion shaft is provided with clamp nut.Adopt above structure, it is prevented that trunnion shaft and trunnion shaft driven gear slide axially.
As preferably: be provided with drive mechanism integrated with it in the side of described left crankcase and install case.Above structure, integrated design is adopted to make its bonding strength higher.
Beneficial effect: adopt the scooter engine with trunnion shaft provided by the invention, novel structure, need not additionally increase the volume of crankcase, effectively reduce vibrations and the noise of the scooter engine, increase the comfortableness of driving, and between bent axle, trunnion shaft and lubricating oil pump, adopt gear drive, add reliability and service life, simultaneously by the setting of the first circular arc baffle plate, the second circular arc baffle plate and three-arc baffle plate, the scope that when effectively reducing trunnion shaft and lubricating oil pump work, machine oil splashes.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation that bent axle, trunnion shaft and lubricating oil pump are arranged on right crankcase；
Fig. 3 is the structural representation of right crankcase；
Fig. 4 is the structural representation of left crankcase.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 4, a kind of the scooter engine with trunnion shaft, including the crankcase 1 surrounded by left crankcase 10 and right crankcase 11, it is provided with drive mechanism integrated with it in the side of this left crankcase 10 and case 7 is installed.
Refer to Fig. 1 and Fig. 2, bent axle 2 and trunnion shaft 3 it is rotatably mounted with in described crankcase 1, bent axle 2 is arranged with trunnion shaft driving gear 21, trunnion shaft 3 is arranged with balance shaft driven gear wheel 31, this balance shaft driven gear wheel 31 and trunnion shaft driving gear 21 engage, and all it being arranged with bearing 5 on bent axle 2 and trunnion shaft 3, the one end passing described right crankcase 11 at trunnion shaft 3 is provided with clamp nut 6.Being provided with lubricating oil pump 4 in crankcase 1, and be arranged with oil pump driven gear 41, this oil pump driven gear 41 is taken turns 31 with balance shaft driven gear and is engaged.Therefore, bent axle 2 drives trunnion shaft driving gear 21 to rotate, trunnion shaft driving gear 21 drives balance shaft driven gear wheel 31 rotation, balance shaft driven gear wheel 31 drive trunnion shaft 3 and oil pump driven gear 41 rotate, vibrations and the noise of the scooter engine is effectively reduced thereby through the rotation of trunnion shaft 3, increasing the comfortableness of driving, the rotation of oil pump driven gear 41 drives lubricating oil pump 4 to work.
nullRefer to Fig. 3 and Fig. 4，Owing to invention increases trunnion shaft 3，Machine oil certainly will be caused when trunnion shaft 3 rotates to splash，Therefore，Inner surface at described left crankcase 10 arranges the first circular arc baffle plate 101，It partly wraps in the described trunnion shaft 3 side away from described bent axle 2，Accordingly，Inner surface at described right crankcase 11 arranges the second circular arc baffle plate 111，It is corresponding with the first circular arc baffle plate 101，The height of the first circular arc baffle plate 101 and the seamed edge of described left crankcase 10 (namely left crankcase 10 and right crankcase 11 just to end face) concordant，The height of described second circular arc baffle plate 111 and the seamed edge of described right crankcase 11 (namely left crankcase 10 and right crankcase 11 just to end face) concordant，Namely the top end face of the first circular arc baffle plate 101 and the top end face of the second circular arc baffle plate 111 are fitted completely，For blocking the machine oil splashed when trunnion shaft rotates.Second circular arc baffle plate 111 is provided with the first drain tap 112, second circular arc baffle plate 111 is separated to form separate cavities 115 and oil back chamber 116 from top to bottom with right crankcase 11, it is provided with spill port 117 in this oil back chamber 116, the machine oil of the first circular arc baffle plate 101 and the closure of the second circular arc baffle plate 111 flows into oil back chamber 116 by the first drain tap 112, finally flows into spill port 117.
Refer to Fig. 3, outer surface at described right crankcase 11 arranges three-arc baffle plate 113, it partly wraps in the described lubricating oil pump 4 side away from described bent axle 2, and is provided with the second drain tap 114, and the machine oil splashed during three-arc baffle plate 113 stopple plugging machine operation of oil pump is flowed out by the second drain tap 114.The side of right crankcase 11 is additionally provided with fuel feed hole 118, this fuel feed hole 118 is connected by oil inlet passage 119 with described lubricating oil pump 4, the lubricating oil pump pump housing need not be separately provided oil charging structure, under ensureing the premise that pump functional oil realizes, reduce the manufacturing cost of lubricating oil pump.
Finally it should be noted that; foregoing description is only the preferred embodiments of the present invention; those of ordinary skill in the art is under the enlightenment of the present invention; under the premise without prejudice to present inventive concept and claim; can making and representing like multiple types, such conversion each falls within protection scope of the present invention.
Claims (7)
1. the scooter engine with trunnion shaft, including the crankcase (1) surrounded by left crankcase (10) and right crankcase (11), it is characterised in that also include:
Bent axle (2), is rotatably installed in described crankcase (1), and is arranged with trunnion shaft driving gear (21)；
Trunnion shaft (3), it is rotatably installed in described crankcase (1), and it being arranged with balance shaft driven gear wheel (31), this balance shaft driven gear wheel (31) engages with described trunnion shaft driving gear (21)；
Lubricating oil pump (4), is arranged in described crankcase (1), and is arranged with oil pump driven gear (41), and this oil pump driven gear (41) is taken turns (31) with described balance shaft driven gear and engaged；
First circular arc baffle plate (101), is arranged on the inner surface of described left crankcase (10), and it partly wraps in the described trunnion shaft (3) side away from described bent axle (2)；
Second circular arc baffle plate (111), it is arranged on the inner surface of described right crankcase (11), it partly wraps in the described trunnion shaft (3) side away from described bent axle (2), and corresponding with described first circular arc baffle plate (101), this second circular arc baffle plate (111) is provided with the first drain tap (112)；And
Three-arc baffle plate (113), is arranged on the outer surface of described right crankcase (11), and it partly wraps in the described lubricating oil pump (4) side away from described bent axle (2), and is provided with the second drain tap (114).
2. the scooter engine with trunnion shaft according to claim 1, it is characterized in that: described second circular arc baffle plate (111) and right crankcase (11) are separated to form separate cavities (115) and oil back chamber (116) from top to bottom, are provided with spill port (117) in this oil back chamber (116).
3. the scooter engine with trunnion shaft according to claim 1 and 2, it is characterized in that: being provided with fuel feed hole (118) on the side of described right crankcase (11), this fuel feed hole (118) is connected by oil inlet passage (119) with described lubricating oil pump (4).
4. the scooter engine with trunnion shaft according to claim 1 and 2, it is characterized in that: the height of described first circular arc baffle plate (101) is concordant with the seamed edge of described left crankcase (10), the height of described second circular arc baffle plate (111) is concordant with the seamed edge of described right crankcase (11).
5. the scooter engine with trunnion shaft according to claim 1, it is characterised in that: on described bent axle (2) and trunnion shaft (3), all it is arranged with bearing (5).
6. the scooter engine with trunnion shaft according to claim 1 or 5, it is characterised in that: the one end passing described right crankcase (11) at described trunnion shaft (3) is provided with clamp nut (6).
7. the scooter engine with trunnion shaft according to claim 1, it is characterised in that: it is provided with drive mechanism integrated with it in the side of described left crankcase (10) and case (7) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261179.5A CN105781782B (en) | 2016-04-22 | 2016-04-22 | The scooter engine with balance shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261179.5A CN105781782B (en) | 2016-04-22 | 2016-04-22 | The scooter engine with balance shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105781782A true CN105781782A (en) | 2016-07-20 |
| CN105781782B CN105781782B (en) | 2018-11-02 |
Family
ID=56399444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610261179.5A Expired - Fee Related CN105781782B (en) | 2016-04-22 | 2016-04-22 | The scooter engine with balance shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781782B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869405A (en) * | 2016-09-23 | 2018-04-03 | 科勒公司 | internal combustion engine with oil baffle |
| CN108662421A (en) * | 2018-08-01 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of integrating device of lubricating oil pump and balance shaft |
| CN113217527A (en) * | 2021-05-11 | 2021-08-06 | 浙江汇豪机械制造有限公司 | Self-balancing high strength crankshaft assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223471C (en) * | 2000-06-28 | 2005-10-19 | Avl里斯脱有限公司 | Monotrack automobile |
| JP2005299566A (en) * | 2004-04-14 | 2005-10-27 | Honda Motor Co Ltd | Internal combustion engine |
| KR20070062033A (en) * | 2005-12-12 | 2007-06-15 | 현대자동차주식회사 | Rattle noise improvement device of a blance shaft module |
| TW201111621A (en) * | 2009-09-25 | 2011-04-01 | Kwang Yang Motor Co | Structure of crank case of engine |
| CN201810414U (en) * | 2010-07-30 | 2011-04-27 | 江门天钇金属工业有限公司 | Left crankshaft box of horizontal engine of motorcycle |
| CN202451701U (en) * | 2012-02-22 | 2012-09-26 | 江门王野摩托车制造有限公司 | Balance shaft device of horizontal engine crankshaft connecting rod |
-
2016
- 2016-04-22 CN CN201610261179.5A patent/CN105781782B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223471C (en) * | 2000-06-28 | 2005-10-19 | Avl里斯脱有限公司 | Monotrack automobile |
| JP2005299566A (en) * | 2004-04-14 | 2005-10-27 | Honda Motor Co Ltd | Internal combustion engine |
| KR20070062033A (en) * | 2005-12-12 | 2007-06-15 | 현대자동차주식회사 | Rattle noise improvement device of a blance shaft module |
| TW201111621A (en) * | 2009-09-25 | 2011-04-01 | Kwang Yang Motor Co | Structure of crank case of engine |
| CN201810414U (en) * | 2010-07-30 | 2011-04-27 | 江门天钇金属工业有限公司 | Left crankshaft box of horizontal engine of motorcycle |
| CN202451701U (en) * | 2012-02-22 | 2012-09-26 | 江门王野摩托车制造有限公司 | Balance shaft device of horizontal engine crankshaft connecting rod |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869405A (en) * | 2016-09-23 | 2018-04-03 | 科勒公司 | internal combustion engine with oil baffle |
| CN107869405B (en) * | 2016-09-23 | 2020-04-03 | 科勒公司 | Internal combustion engine with oil baffle |
| CN108662421A (en) * | 2018-08-01 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of integrating device of lubricating oil pump and balance shaft |
| CN113217527A (en) * | 2021-05-11 | 2021-08-06 | 浙江汇豪机械制造有限公司 | Self-balancing high strength crankshaft assembly |
| CN113217527B (en) * | 2021-05-11 | 2022-02-08 | 浙江汇豪机械制造有限公司 | Self-balancing high strength crankshaft assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105781782B (en) | 2018-11-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| 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: 20181102 Termination date: 20210422 |