CN108343706A - Balance shaft and engine - Google Patents
Balance shaft and engine Download PDFInfo
- Publication number
- CN108343706A CN108343706A CN201710057043.7A CN201710057043A CN108343706A CN 108343706 A CN108343706 A CN 108343706A CN 201710057043 A CN201710057043 A CN 201710057043A CN 108343706 A CN108343706 A CN 108343706A
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- CN
- China
- Prior art keywords
- connecting rod
- balance
- shaft
- balance weight
- balance shaft
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- 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.)
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Classifications
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- 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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention provides a kind of balance shaft and engine, balance shaft includes：Shell is installed；Side shaft journal, the side shaft journal are two and are separately mounted to the axial both ends of the installation shell；Balance weight, the balance weight is connected to the radial outside of the installation shell and the relatively described installation shell radial position is adjustable.Balance shaft according to the present invention, after the opposite installation shell radial position of balance weight is adjusted, balance weight will change to centroid distance, correspondingly, the centrifugal force that balance weight generates changes, the aequum of balance shaft changes, and such balance shaft can adapt to different engines by the position of adjustment block.In addition, balance shaft can also according to the difference of engine luggine and the aequum of adjustment block can promote the comfort of vehicle so as to reduce engine luggine.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly to a kind of balance shaft and the engine with the balance shaft.
Background technology
Four cylinder engine is due to the particularity of Equilibrium system, the two-stage reciprocating inertia force that the reciprocating motion of piston group generates
It is unbalanced.In order to reduce engine luggine and noise, balance shaft is needed to configure.Balance shaft is driven by bent axle, does rotation fortune
It is dynamic.Balance shaft generates centrifugal force, the two-stage reciprocating inertia force with engine in rotary course since barycenter deviates rotation center
It cancels out each other, to reduce engine luggine and noise.
Wherein, in power team melts hair, the parameter of the engine of different editions differs, and especially engine is past
Compound body amount is different.The engine of different editions is also different to the aequum of balance shaft.The balance of some four cylinder engines
Axis is made of preceding axle journal, balance weight and rear shaft neck, and the aequum of wherein balance weight is constant, cannot meet seriation engine
Demand to aequum, balance shaft can not achieve generalization.
Invention content
In view of this, the present invention is directed to propose a kind of balance shaft, to solve the problems, such as balance shaft poor universality.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of balance shaft, including：Shell is installed；Side shaft journal, the side shaft journal are two and are separately mounted to the installation
The axial both ends of shell；Balance weight, the balance weight are connected to the radial outside of the installation shell and the relatively described mounting shell
Body radial position is adjustable.
Further, balance shaft further includes：Actuator, the actuator are arranged in the installation enclosure interior, the drive
Link assembly is provided between moving part and the balance weight, the actuator drives the balance weight diameter by the link assembly
To movement.
Further, the link assembly includes：First connecting rod, second connecting rod and third connecting rod, the first connecting rod connect
Be connected on the balance weight and radially extend, the first connecting rod pass through it is described installation shell wall, the third connecting rod with
The drive shaft of the actuator is connected, the second connecting rod be rotatably connected to the first connecting rod and the third connecting rod it
Between.
Further, it is provided with the through-hole passed through for the first connecting rod on the installation shell, the through-hole is described in
The vertical range for installing the axial both ends of shell is identical.
Further, the first connecting rod coordinates with the via clearance.
Further, for the drive shaft of the actuator along the axially extending of the installation shell, the third connecting rod is vertical
In the drive shaft.
Further, the drive shaft and the third connecting rod are integrally formed part.
Further, the section of the balance weight is in umbrella.
Further, the installation shell is interference fitted with the side shaft journal.
Compared with the existing technology, balance shaft of the present invention has the advantage that：
Balance shaft according to the present invention, after the opposite installation shell radial position of balance weight is adjusted, balance weight to barycenter
Distance will change, and correspondingly, the centrifugal force that balance weight generates can change, and the aequum of balance shaft changes,
Balance shaft can adapt to different engines by the position of adjustment block in this way.In addition, balance shaft can also be according to hair
The difference of motivation vibration and the aequum of adjustment block can promote the comfortable of vehicle so as to reduce engine luggine
Property.
Another object of the present invention is to propose a kind of engine.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of engine, including above-mentioned balance shaft.
Possessed advantage is identical compared with the existing technology with above-mentioned balance shaft for the engine, and details are not described herein.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the balance shaft described in the embodiment of the present invention；
Fig. 2 is the explosive view of the balance shaft described in the embodiment of the present invention；
Fig. 3 is the matching relationship schematic diagram of the balance shaft described in the embodiment of the present invention.
Reference sign：
Balance shaft 100；
Shell 10 is installed；Through-hole 11；
Side shaft journal 20；Balance weight 30；
Actuator 40；Drive shaft 41；
Link assembly 50；First connecting rod 51；Second connecting rod 52；Third connecting rod 53；
Pin 60.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The balance shaft 100 for embodiment of coming that the present invention will be described in detail below with reference to Fig. 1-Fig. 3 and in conjunction with the embodiments, the balance
Axis 100 is applied in engine.
As shown in Figure 1-Figure 3, balance shaft 100 according to the ... of the embodiment of the present invention may include：Shell 10, side shaft journal 20 are installed
With balance weight 30.
Wherein, as shown in Fig. 2, installation shell 10 can be the cylindrical-shaped structure of inner hollow, and shell 10 is installed
Axial both ends can be opened wide.Side shaft journal 20 is two, and two side shaft journals 20 are separately mounted to axial the two of installation shell 10
End.Preferably, installation shell 10 can be interference fitted with two side shaft journals 20.The side shaft journal 20 and installation shell 10 of interference fit
It can ensure cooperation reliability between the two.
Balance weight 30 is connected to the radial outside of installation shell 10, and opposite installation 10 radial position of shell of balance weight 30
It can adjust.It is understood that after opposite installation 10 radial position of shell of balance weight 30 is adjusted, balance weight 30 arrives barycenter
Distance will change, and correspondingly, the centrifugal force that balance weight 30 generates can change, and the aequum of balance shaft 100 occurs
Variation, such balance shaft 100 can adapt to different engines by the position of adjustment block 30.In addition, balance shaft 100
It can also the aequum of adjustment block 30 can be with so as to reduce engine luggine according to the difference of engine luggine
Promote the comfort of vehicle.
According to a preferred embodiment of the present invention, as shown in Fig. 2-Fig. 3, balance shaft 100 can also include：Actuator
40, the setting of actuator 40 is provided with link assembly 50, actuator inside installation shell 10 between actuator 40 and balance weight 30
40 are moved radially by link assembly 50 with dynamic balance weight 30.It should be noted that since the setting of actuator 40 is in installation shell
Inside 10, in installation 10 radial outside of shell, such link assembly 50 is beyond all doubt to be needed to run through mounting shell the setting of balance weight 30
The wall of body 10.
Actuator 40 can be as the radial position of driving link active adjustment axis 100, so that balance
The radial position arrangement of axis 100 is more flexible, and is more conducive to change, and then can preferably improve shaking for engine
It is dynamic, and can preferably be suitable for different engines.
Optionally, actuator 40 can be the driving motor that can be rotated and reverse, and such driving motor can drive flat
Block 30 weigh to far from the radial direction for installing shell 10 and close to the radial direction movement for installing shell 10.
Another optionally actuator 40 can be electromagnetic hydraulic pressure system, and liquid flowing is controlled by electromagnetic energy, to
Band dynamic balance weight 30 moves radially, and then changes the aequum of balance weight 30.
Further, as shown in Figures 2 and 3, link assembly 50 includes：First connecting rod 51, second connecting rod 52 and third connect
Bar 53, first connecting rod 51 are connected on balance weight 30, and first connecting rod 51 radially extends, and such first connecting rod 51 can band
Dynamic balance weight 30 moves radially.First connecting rod 51 passes through the wall of installation shell 10, the driving of third connecting rod 53 and actuator 40
Axis 41 is connected, and second connecting rod 52 is rotatably connected between first connecting rod 51 and third connecting rod 53.Actuator 40 as a result,
Drive shaft 41 can be moved radially by third connecting rod 53, second connecting rod 52 and first connecting rod 51 with dynamic balance weight 30.
Wherein, as shown in figure 3, the connecting pin of second connecting rod 52 and first connecting rod 51 can be provided with pin 60, pin 60
Including big journal axle and small journal axle, small journal axle wears the end of second connecting rod 52 and first connecting rod 51, small journal axle and first connecting rod 51
End interference fit, the tip-clearance of small journal axle and second connecting rod 52 coordinates, and big journal axle sticks on the lateral of second connecting rod 52
Position, such second connecting rod 52 can be rotated relative to first connecting rod 51, and the connection of first connecting rod 51 and second connecting rod 52 can
It is preferable by property.
The connecting pin of second connecting rod 52 and third connecting rod 53 can be provided with pin 60, and pin 60 includes big journal axle and path
Axis, small journal axle wear the end of second connecting rod 52 and third connecting rod 53, and small journal axle and the end of third connecting rod 53 are interference fitted, small
Journal axle and the tip-clearance of second connecting rod 52 coordinate, and big journal axle sticks on the lateral position of second connecting rod 52, such second connecting rod
52 can rotate relative to third connecting rod 53, and the connection reliability of third connecting rod 53 and second connecting rod 52 is preferable.
Optionally, as shown in figure 3, being provided with the through-hole 11 passed through for first connecting rod 51 on installation shell 10, through-hole 11 arrives
The vertical range for installing the axial both ends of shell 10 can be identical.By the way that through-hole 11 is arranged, it is ensured that first connecting rod 51 is radial
Mobile freedom, and through-hole 11 can play the role of that first connecting rod 51 is guided to move radially at least to some extent.Separately
Outside, by the position of reasonable Arrangement through-hole 11, the position of reasonable Arrangement balance weight 30 can be conducive to, can make balance weight 30
Aequum adjust more stablize.
Preferably, as shown in figure 3, first connecting rod 51 can be with 11 clearance fit of through-hole.The first connecting rod 51 of clearance fit
First connecting rod 51 can be interfered to move radially to avoid through-hole 11 with through-hole 11, so that move radially can for balance weight 30
It leans on and accurately.
Optionally, the drive shaft 41 of actuator 40 is along the axially extending of installation shell 10, and third connecting rod 53 is perpendicular to driving
Axis 41.That is, actuator 40 can be moved radially by rotating certain central angle come band dynamic balance weight 30, so as to
So that 100 structure of balance shaft is reliable, the operation is stable.
Preferably, drive shaft 41 and third connecting rod 53 can be integrally formed part.Integrally formed drive shaft 41 and third
Connecting rod 53 designs simply, and manufacturing cost is low, can also reduce assembling process, can improve the efficiency of assembling of balance shaft 100.
Optionally, as shown in figure 3, the section of balance weight 30 is in umbrella.The weight of the balance weight 30 of umbrella is more concentrated, from
And it can preferably change the aequum of balance weight 30.
Engine according to the ... of the embodiment of the present invention includes the balance shaft 100 of above-described embodiment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of balance shaft (100), which is characterized in that including：
Shell (10) is installed；
Side shaft journal (20), the side shaft journal (20) are two and are separately mounted to the axial both ends of the installation shell (10)；
Balance weight (30), the balance weight (30) are connected to the radial outside of the installation shell (10) and the relatively described mounting shell
Body (10) radial position is adjustable.
2. balance shaft (100) according to claim 1, which is characterized in that further include：Actuator (40), the actuator
(40) setting is internal in the installation shell (10), and connection rod set is provided between the actuator (40) and the balance weight (30)
Part (50), the actuator (40) drive the balance weight (30) to move radially by the link assembly (50).
3. balance shaft (100) according to claim 2, which is characterized in that the link assembly (50) includes：First connecting rod
(51), second connecting rod (52) and third connecting rod (53), the first connecting rod (51) are connected on the balance weight (30) and along diameter
To extension, the first connecting rod (51) passes through the wall of the installation shell (10), the third connecting rod (53) and the actuator
(40) drive shaft (41) is connected, and the second connecting rod (52) is rotatably connected to the first connecting rod (51) and the third
Between connecting rod (53).
4. balance shaft (100) according to claim 3, which is characterized in that be provided with for institute on the installation shell (10)
State the through-hole (11) that first connecting rod (51) passes through, the through-hole (11) to the axial both ends of the installation shell (10) it is vertical away from
From identical.
5. balance shaft (100) according to claim 4, which is characterized in that the first connecting rod (51) and the through-hole
(11) clearance fit.
6. balance shaft (100) according to claim 3, which is characterized in that drive shaft (41) edge of the actuator (40)
Described to install the axially extending of shell (10), the third connecting rod (53) is perpendicular to the drive shaft (41).
7. balance shaft (100) according to claim 6, which is characterized in that the drive shaft (41) and the third connecting rod
(53) be integrally formed part.
8. the balance shaft (100) according to any one of claim 1-7, which is characterized in that the balance weight (30) is cut
Face is in umbrella.
9. the balance shaft (100) according to any one of claim 1-7, which is characterized in that the installation shell (10) with
Side shaft journal (20) interference fit.
10. a kind of engine, which is characterized in that include the balance shaft (100) according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057043.7A CN108343706B (en) | 2017-01-22 | 2017-01-22 | Balance shaft and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057043.7A CN108343706B (en) | 2017-01-22 | 2017-01-22 | Balance shaft and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343706A true CN108343706A (en) | 2018-07-31 |
| CN108343706B CN108343706B (en) | 2020-01-31 |
Family
ID=62961886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057043.7A Active CN108343706B (en) | 2017-01-22 | 2017-01-22 | Balance shaft and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343706B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB292241A (en) * | 1927-03-16 | 1928-06-18 | George Richard Inshaw | Improvements in transmission gear for overhead camshafts of internal combustion engines |
| JPS61218823A (en) * | 1985-03-26 | 1986-09-29 | Fuji Heavy Ind Ltd | Balancing structure of crank shaft |
| JPS62224751A (en) * | 1986-03-27 | 1987-10-02 | Toyota Motor Corp | Transfer type balance shaft installation device |
| US20060137645A1 (en) * | 2002-11-12 | 2006-06-29 | Christian Friedrich | Balance shaft for a reciprocating piston engine |
| CN103438147A (en) * | 2013-08-29 | 2013-12-11 | 长城汽车股份有限公司 | Engine balance shaft |
| DE102012217407A1 (en) * | 2012-09-26 | 2014-04-17 | Mahle International Gmbh | Balancing shaft for internal combustion engine, has weight for generating unbalanced mass and is formed such that two different operating points are set with two different unbalanced mass balancing |
| CN105276081A (en) * | 2014-07-18 | 2016-01-27 | Skf公司 | Unbalanced shaft |
-
2017
- 2017-01-22 CN CN201710057043.7A patent/CN108343706B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB292241A (en) * | 1927-03-16 | 1928-06-18 | George Richard Inshaw | Improvements in transmission gear for overhead camshafts of internal combustion engines |
| JPS61218823A (en) * | 1985-03-26 | 1986-09-29 | Fuji Heavy Ind Ltd | Balancing structure of crank shaft |
| JPS62224751A (en) * | 1986-03-27 | 1987-10-02 | Toyota Motor Corp | Transfer type balance shaft installation device |
| US20060137645A1 (en) * | 2002-11-12 | 2006-06-29 | Christian Friedrich | Balance shaft for a reciprocating piston engine |
| DE102012217407A1 (en) * | 2012-09-26 | 2014-04-17 | Mahle International Gmbh | Balancing shaft for internal combustion engine, has weight for generating unbalanced mass and is formed such that two different operating points are set with two different unbalanced mass balancing |
| CN103438147A (en) * | 2013-08-29 | 2013-12-11 | 长城汽车股份有限公司 | Engine balance shaft |
| CN105276081A (en) * | 2014-07-18 | 2016-01-27 | Skf公司 | Unbalanced shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108343706B (en) | 2020-01-31 |
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