CN109163056A - Three-cylinder engine balance system - Google Patents
Three-cylinder engine balance system Download PDFInfo
- Publication number
- CN109163056A CN109163056A CN201811286118.XA CN201811286118A CN109163056A CN 109163056 A CN109163056 A CN 109163056A CN 201811286118 A CN201811286118 A CN 201811286118A CN 109163056 A CN109163056 A CN 109163056A
- Authority
- CN
- China
- Prior art keywords
- balance
- cylinder engine
- oil pump
- balance shaft
- crankshaft
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
- F16F15/264—Rotating balancer shafts
- F16F15/267—Rotating balancer shafts characterised by bearing support of balancer shafts; Lubrication arrangements
-
- 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
- F02B75/06—Engines with means for equalising torque
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
- F16F15/264—Rotating balancer shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of three-cylinder engine balance systems comprising crankshaft, balance shaft, oil pump casing and chain wheel drive system；Wherein, balance shaft is arranged in oil pump casing；Crankshaft and balance shaft are interlocked with the rotation by chain wheel drive system.Three-cylinder engine balance system provided by the invention, by the cooperation of crankshaft and balance shaft, realize single order toward complex moment of inertia and rotation inertia moment 100% balance, and it is compact-sized, complete machine operating NVH performance is improved simultaneously, avoids the risk that gearbox strikes tooth abnormal sound.
Description
Technical field
The present invention relates to technical field of engines more particularly to a kind of three-cylinder engine balance systems.
Background technique
In order to cope with national fuel economy regulation and energy crisis, more and more main engine plants are developing three-cylinder engine to drop
Low engine fuel consumption.Due to the single order of three-cylinder engine toward complex moment of inertia be it is unbalanced, in order to reduce the vibration of engine
Dynamic, promotion ride comfort, needs to design balance shaft for engine.
Existing balance shaft is mainly one piece casting type balance shaft, and including jackshaft and the flat of jackshaft both ends is arranged in
Weigh block, and jackshaft and both ends balance weight are integral type, and are assemblied in the space of side of cylinder block.But for one piece casting type
For balance shaft, singly balanced axis is only capable of the single order of balance 50% toward complex moment of inertia, it is therefore desirable to two balance shafts be arranged to realize
100% single order so then needs cylinder body to provide biggish installation space, greatly reduces engine toward the balance of complex moment of inertia
Compactedness, while increasing the complexity of engine structure, causing to balance accuracy rate reduces, and improves system cost.
Summary of the invention
The object of the present invention is to provide a kind of three-cylinder engine balance systems, to solve above-mentioned the problems of the prior art,
Realize 100% balance of the single order toward complex moment of inertia, lift structure compactedness, the NVH performance of raising complete machine operating.
The present invention provides a kind of three-cylinder engine balance systems, wherein includes:
Crankshaft；
Balance shaft；
Oil pump casing, the balance shaft are arranged in the oil pump casing；
Chain wheel drive system, the crankshaft and the balance shaft are interlocked with the rotation by the chain wheel drive system.
Three-cylinder engine balance system as described above, wherein preferably, the chain wheel drive system include crankshaft just
When sprocket wheel, drive chain, lubricating oil pump drive sprocket, balancer shaft drive gear and balance shaft driven gear wheel；
The crankshaft timing sprocket is arranged on crankshaft；
The lubricating oil pump drive sprocket and balancer shaft drive gear are arranged on the output end of lubricating oil pump；
The drive chain is engaged with the crankshaft timing sprocket and the lubricating oil pump drive sprocket respectively；
The balance shaft driven gear wheel is arranged in the balance shaft, and the balance shaft driven gear wheel and the balance shaft are driven
Moving gear engagement.
Three-cylinder engine balance system as described above, wherein preferably, the chain wheel drive system further includes tensioning
Device, the stretcher are tensioned the drive chain by dynamic rail.
Three-cylinder engine balance system as described above, wherein preferably, the balance shaft includes jackshaft, preceding flat
Weigh block and rear balance weight, the forward horizontal stand block and it is described after balance weight be separately positioned on the both ends of the jackshaft, and it is described after
Balance weight and the jackshaft are integrally formed；
The forward horizontal stand block and the jackshaft detachable connection.
Three-cylinder engine balance system as described above, wherein preferably, the balance shaft further includes rear balance weight cover
Lid, the rear balance weight the cover are fixed on the oil pump casing, and rear balance weight setting balance after described
In block the cover；
Rear thrust boss is provided with after described in balance weight the cover, the rear thrust boss is supported at the end of the jackshaft
On face.
Three-cylinder engine balance system as described above, wherein preferably, be provided with first on the rear thrust boss
Oil trap, the first drain pan and fuisw rib；
The fuisw rib and first oil sump, for guiding the oil liquid fallen on crankshaft to first collection
In oil groove；
First drain pan is used to be discharged the oil liquid in the rear balance weight the cover.
Three-cylinder engine balance system as described above, wherein preferably, before being provided on the oil pump casing only
Boss is pushed away, step is provided on the jackshaft, the preceding thrust boss is supported on the surface of the step；
The second oil trap and the second drain pan are provided on the preceding thrust boss.
Three-cylinder engine balance system as described above, wherein preferably, the jackshaft is hollow structure, described
Balance shaft further includes blocking plug, and the port for blocking the hollow structure is filled in the closure.
Three-cylinder engine balance system as described above, wherein preferably, installation is provided on the oil pump casing
Slot is fixedly installed bearing on the mounting groove, and the balance shaft is threaded through in the bearing.
Three-cylinder engine balance system as described above, wherein preferably, the bearing and mounting groove one at
Type.
It is reciprocal to realize single order by the cooperation of crankshaft and balance shaft for three-cylinder engine balance system provided by the invention
100% balance of the moment of inertia and rotation inertia moment, and it is compact-sized, while complete machine operating NVH performance is improved, avoid speed change
Case strikes the risk of tooth abnormal sound.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of three-cylinder engine balance system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of balance shaft；
Fig. 3 is that balance shaft is mounted on the cross-sectional view in three-cylinder engine balance system；
Fig. 4 is the structural schematic diagram of rear balance weight the cover；
Fig. 5 is the schematic diagram of oil pump casing.
Description of symbols:
Thrust boss before 100- crankshaft 200- oil pump casing 210-
211- the second oil trap 212- the second drain pan 310- crankshaft timing sprocket
320- drive chain 330- lubricating oil pump drive sprocket 340- balancer shaft drive gear
350- balance shaft driven gear wheel 360- stretcher 400- balance shaft
Balance weight 430- jackshaft after 410- forward horizontal stand block 420-
The first oil trap of thrust boss 442- after balance weight the cover 441- after 440-
443- fuisw rib 444- the first drain pan 450- blocks plug
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
As shown in Figure 1, the embodiment of the invention provides a kind of three-cylinder engine balance systems comprising crankshaft 100, balance
Axis 400, oil pump casing 200 and chain wheel drive system；Wherein, balance shaft 400 is arranged in oil pump casing 200；Crankshaft 100
It is interlocked with the rotation with balance shaft 400 by chain wheel drive system.
During the work time, the rotation of crankshaft 100 can lead to three-cylinder engine balance system provided in an embodiment of the present invention
Crossing chain wheel drive system drives balance shaft 400 to rotate, wherein crankshaft 100 can balance 50% single order toward complex moment of inertia and
100% rotation inertia moment can balance remaining 50% single order toward complex moment of inertia by balance shaft 400, finally realize single order
Toward 100% balance of complex moment of inertia and rotation inertia moment.The three-cylinder engine balance system passes through crankshaft 100 and balance as a result,
The cooperation of axis 400 realizes the counterbalance effect of double balance shaft, and compact-sized, while improving complete machine operating NVH performance, keeps away
The risk that gearbox strikes tooth abnormal sound is exempted from.
Specifically, chain wheel drive system may include crankshaft timing sprocket 310, drive chain 320, lubricating oil pump drive sprocket
330, balancer shaft drive gear 340 and balance shaft driven gear wheel 350；Wherein, crankshaft timing sprocket 310 is arranged on crankshaft 100；
Lubricating oil pump drive sprocket 330 and balancer shaft drive gear 340 are arranged on the output end of lubricating oil pump；Drive chain 320 is distinguished
It is engaged with crankshaft timing sprocket 310 and lubricating oil pump drive sprocket 330；Balance shaft driven gear wheel 350 is arranged in balance shaft 400,
Balance shaft driven gear wheel 350 is engaged with balancer shaft drive gear 340.
When work, crankshaft timing sprocket 310 drives lubricating oil pump drive sprocket 330 to rotate by drive chain 320, lubricating oil pump
Drive sprocket 330 and balancer shaft drive gear 340 rotate coaxially, and balancer shaft drive gear 340 drives balance shaft driven gear wheel 350
Rotation, to realize that balance shaft 400 rotates.Wherein, drive chain 320 and the mode of each gear driving can stop to fall a part
Vibration from balance shaft 400 further promotes complete machine NVH performance.
Wherein, chain wheel drive system further includes stretcher 360, and stretcher 360 is tensioned drive chain 320 by dynamic rail, is used
In adjusting the elastic of drive chain 320, the problem of jumping tooth is avoided.In the present embodiment, stretcher 360 is hydraulic tensioner
360。
Specifically, as shown in Fig. 2, balance shaft 400 include jackshaft 430, forward horizontal stand block 410 and rear balance weight 420, it is preceding
Balance weight 410 and rear balance weight 420 are separately positioned on the both ends of jackshaft 430, and rear balance weight 420 and 430 one of jackshaft
Molding；Forward horizontal stand block 410 and 430 detachable connection of jackshaft.It should be noted that in the prior art, by 430 He of jackshaft
The balance shaft 400 of former and later two balance weight integrally casting shapings needs biggish installation space during installation, so as to by balance shaft
400 integral installations, and the balance shaft 400 provided in the embodiment of the present invention are not necessarily to biggish installation space, can first will be by centre
Axis 430 and the integrally formed part of rear balance weight 420 are initially charged with installation site, then forward horizontal stand block 410 is assembled to jackshaft 430
Upper one end far from rear balance weight 420 simplifies assembly technology to effectively save installation space, reduces costs.Together
When, it is removably connect since forward horizontal stand block 410 is used with jackshaft 430, thereby facilitates 400 later period of balance shaft to balance
The adjusting of amount.
Further, as shown in figure 3, installation reliability in order to guarantee jackshaft 430 and rear balance weight 420, balance shaft 400
It further include rear balance weight the cover 440, which is fixed on oil pump casing 200, and the rear balance weight
420 are arranged in rear balance weight the cover 4240；Rear thrust boss 441, rear thrust boss are provided in balance weight the cover 440 afterwards
441 support on the end face of jackshaft 430.Wherein, which, which can be bolted, is arranged in lubricating oil pump
On shell 200.
Further, as shown in figure 4, being provided with the first oil trap 442, the first drain pan 444 on rear thrust boss 441 and leading
Flow muscle 443；Fuisw rib 443 is connected to the first oil trap 442, for guiding the oil liquid fallen on crankshaft 100 to the first oil-collecting
In slot 442；Wherein, fuisw rib 443 can by the oil collecting fallen into crankshaft 100 casees into the first oil trap 442, when
When balance shaft 400 rotates, the machine oil in the first oil trap 442 can be attached to the surface of thrust boss 441 after balance shaft 400,
Play lubricant effect.In addition, the first drain pan 444 is used for the oil liquid after being discharged in balance weight the cover 440, to prevent rear balance weight
420 long-term agitation machine oil cause the problems such as aeronautic ATE is fast, rotary resistance is big.
Further, it as shown in figure 5, preceding thrust boss 210 can be set on oil pump casing 200, is set on jackshaft 430
It is equipped with step, preceding thrust boss 210 is supported on the surface of step；Thus, it is possible to convex by preceding thrust boss 210 and rear thrust
The cooperation of platform 441 guarantees the stability that balance shaft 400 works.In addition, the second oil-collecting can be set on preceding thrust boss 210
Slot 211 and the second drain pan 212, the surface that the second oil trap 211 can will make machine oil be attached to preceding thrust boss 210, are played
Lubricant effect；When the machine oil accumulation in the second oil trap 211 is excessive, the second drain pan 212 extra oil liquid can be discharged,
Reduce the contact area of oil liquid, reduces friction.
Further, as shown in figure 3, in order to reduce component weight, jackshaft 430 can be hollow structure, and in order to anti-
Only the jackshaft 430 of hollow tubular generates noise in rotary work, and balance shaft 400 can also include blocking plug 450, to block
The port of hollow structure.
Further, it is additionally provided with mounting groove on oil pump casing 200, bearing, balance shaft 400 are fixedly installed on mounting groove
It wears within the bearing.Wherein, bearing and mounting groove are integrally formed；Specifically, bearing can be directly finish-machined in mounting groove
Type, it is no longer necessary to which independent pressing bearing bushing or rolling bearing reduce costs to save components, simplify balance
400 bearing arrangement of axis.
Three-cylinder engine balance system provided in an embodiment of the present invention realizes one by the cooperation of crankshaft and balance shaft
Rank balances toward the 100% of complex moment of inertia and rotation inertia moment, and compact-sized, while improving complete machine operating NVH performance, avoids
Gearbox strikes the risk of tooth abnormal sound.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (10)
1. a kind of three-cylinder engine balance system characterized by comprising
Crankshaft；
Balance shaft；
Oil pump casing, the balance shaft are arranged in the oil pump casing；
Chain wheel drive system, the crankshaft and the balance shaft are interlocked with the rotation by the chain wheel drive system.
2. three-cylinder engine balance system according to claim 1, which is characterized in that the chain wheel drive system includes song
Axis timing sprocket, drive chain, lubricating oil pump drive sprocket, balancer shaft drive gear and balance shaft driven gear wheel；
The crankshaft timing sprocket is arranged on crankshaft；
The lubricating oil pump drive sprocket and balancer shaft drive gear are arranged on the output end of lubricating oil pump；
The drive chain is engaged with the crankshaft timing sprocket and the lubricating oil pump drive sprocket respectively；
The balance shaft driven gear wheel is arranged in the balance shaft, the balance shaft driven gear wheel and the balance shaft sliding tooth
Wheel engagement.
3. three-cylinder engine balance system according to claim 1, which is characterized in that the chain wheel drive system further includes
Stretcher, the stretcher are tensioned the drive chain by dynamic rail.
4. three-cylinder engine balance system according to claim 1, which is characterized in that the balance shaft include jackshaft,
Forward horizontal stand block and rear balance weight, the forward horizontal stand block and the rear balance weight are separately positioned on the both ends of the jackshaft, and institute
It states rear balance weight and the jackshaft is integrally formed；
The forward horizontal stand block and the jackshaft detachable connection.
5. three-cylinder engine balance system according to claim 4, which is characterized in that the balance shaft balances after further including
Block the cover, the rear balance weight the cover are fixed on the oil pump casing, and the rear balance weight is arranged after described
In balance weight the cover；
Rear thrust boss is provided with after described in balance weight the cover, the rear thrust boss is supported in the end face of the jackshaft
On.
6. three-cylinder engine balance system according to claim 5, which is characterized in that be provided on thrust boss after described
First oil trap, the first drain pan and fuisw rib；
The fuisw rib and first oil sump, for guiding the oil liquid fallen on crankshaft to first oil trap
In；
First drain pan is used to be discharged the oil liquid in the rear balance weight the cover.
7. three-cylinder engine balance system according to claim 4, which is characterized in that be provided on the oil pump casing
Preceding thrust boss is provided with step on the jackshaft, and the preceding thrust boss is supported on the surface of the step；
The second oil trap and the second drain pan are provided on the preceding thrust boss.
8. three-cylinder engine balance system according to claim 4, which is characterized in that the jackshaft is hollow structure,
The balance shaft further includes blocking plug, and the port for blocking the hollow structure is filled in the closure.
9. three-cylinder engine balance system according to claim 1, which is characterized in that be provided on the oil pump casing
Mounting groove is fixedly installed bearing on the mounting groove, and the balance shaft is threaded through in the bearing.
10. three-cylinder engine balance system according to claim 9, which is characterized in that the bearing and the mounting groove
It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286118.XA CN109163056A (en) | 2018-10-31 | 2018-10-31 | Three-cylinder engine balance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286118.XA CN109163056A (en) | 2018-10-31 | 2018-10-31 | Three-cylinder engine balance system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109163056A true CN109163056A (en) | 2019-01-08 |
Family
ID=64876340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286118.XA Pending CN109163056A (en) | 2018-10-31 | 2018-10-31 | Three-cylinder engine balance system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109163056A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037762A (en) * | 1988-05-18 | 1989-12-06 | 史玉琏 | A kind of balancer for multi-cylindered diesel engine |
| JP2004301021A (en) * | 2003-03-31 | 2004-10-28 | Mazda Motor Corp | Lubrication structure of engine equipped with balancer |
| CN101196139A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Car engine balance shaft system |
| CN202073997U (en) * | 2011-05-23 | 2011-12-14 | 奇瑞汽车股份有限公司 | Driving device for balance shaft system of engine |
| CN103185062A (en) * | 2011-12-31 | 2013-07-03 | 上海汽车集团股份有限公司 | Crank shaft balanced system of inline three-cylinder engine |
| DE102012005578A1 (en) * | 2012-03-20 | 2013-09-26 | Daimler Ag | Internal combustion engine e.g. three-cylinder internal combustion engine for motor car, has balancing shaft that is driven to equal rotational speed of crankshaft, which is double to rotational speed of camshaft |
| CN204458983U (en) * | 2014-11-28 | 2015-07-08 | 北汽福田汽车股份有限公司 | Balance shaft assembly and motor |
-
2018
- 2018-10-31 CN CN201811286118.XA patent/CN109163056A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037762A (en) * | 1988-05-18 | 1989-12-06 | 史玉琏 | A kind of balancer for multi-cylindered diesel engine |
| JP2004301021A (en) * | 2003-03-31 | 2004-10-28 | Mazda Motor Corp | Lubrication structure of engine equipped with balancer |
| CN101196139A (en) * | 2006-12-06 | 2008-06-11 | 奇瑞汽车有限公司 | Car engine balance shaft system |
| CN202073997U (en) * | 2011-05-23 | 2011-12-14 | 奇瑞汽车股份有限公司 | Driving device for balance shaft system of engine |
| CN103185062A (en) * | 2011-12-31 | 2013-07-03 | 上海汽车集团股份有限公司 | Crank shaft balanced system of inline three-cylinder engine |
| DE102012005578A1 (en) * | 2012-03-20 | 2013-09-26 | Daimler Ag | Internal combustion engine e.g. three-cylinder internal combustion engine for motor car, has balancing shaft that is driven to equal rotational speed of crankshaft, which is double to rotational speed of camshaft |
| CN204458983U (en) * | 2014-11-28 | 2015-07-08 | 北汽福田汽车股份有限公司 | Balance shaft assembly and motor |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |