CN207393705U - A kind of three-cylinder engine bent axle with five pieces of balance weights - Google Patents
A kind of three-cylinder engine bent axle with five pieces of balance weights Download PDFInfo
- Publication number
- CN207393705U CN207393705U CN201721276418.0U CN201721276418U CN207393705U CN 207393705 U CN207393705 U CN 207393705U CN 201721276418 U CN201721276418 U CN 201721276418U CN 207393705 U CN207393705 U CN 207393705U
- Authority
- CN
- China
- Prior art keywords
- balance weight
- crank arm
- bent axle
- balance
- cylinder engine
- 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.)
- Expired - Fee Related
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of three-cylinder engine bent axles with five pieces of balance weights, including crank arm assembly, trunnion and rod journal, crank arm assembly is arranged between the front end of trunnion and rear end portion, and trunnion and rod journal are connected with crank arm assembly；Crank arm assembly includes the first crank arm and the first balance weight, the second crank arm and the second balance weight, the 3rd crank arm, the 4th crank arm and the 3rd balance weight, the 5th crank arm and the 4th balance weight and six-throw arm and the 5th balance weight successively；First balance weight, the second balance weight, the 4th balance weight and the 5th balance weight are big balance weight；3rd balance weight is small balance weight.The utility model can also keep bent axle reasonably interior moment of flexure balanced ratio while bent axle lightweight drop weight is realized, ensure base bearing load and main bearing friction loss in the reasonable scope.
Description
Technical field
The utility model is related to a kind of bent axles, and in particular to a kind of three-cylinder engine bent axle with five pieces of balance weights.
Background technology
Increasingly strict with complete-vehicle oil consumption regulation, the lightweight of engine and its parts becomes a crucial design
Target, present countries in the world motor corporation all carry out lean, the light-weight design of parts, to meet reliability durable
On the premise of property, the weight of engine component is reduced.The lightweight of engine not only contribute to reduce material consumption, reduce into
This, additionally it is possible to reduce complete-vehicle oil consumption.Some researches show that vehicle car weight reduces by 10%, and oil consumption can reduce by 5%.Bent axle is as hair
The key components and parts of motivation account for the 10% of main screw lift, and there are larger drop weight potentiality.
Four-cylinder bent axle generally realizes directly effective loss of weight using the method for reducing balance number of blocks, such as by 8 balance weights
It reduces to 4 balance weights.And three cylinder machine crankshafts, the general organization plan for using 6 balance weights.From the point of view of dropping again, it can incite somebody to action
The balance weight of centre 2 of three cylinder machine crankshafts is cancelled, so as to fulfill loss of weight.But due to the special construction of three cylinder machine crankshafts, in cancellation
Between after 2 balance weights, interior moment of flexure balanced ratio will be greatly reduced, and bend so as to cause bent axle under the effect of high speed inertia force
Deformation, is significantly increased intermediate main bearing load.The inordinate wear of bearing shell may not only be caused, integrity problem occur, also can
Increase the friction loss of bearing, oil consumption is caused to raise, therefore three cylinder machine crankshafts of 4 balance weights are actually rare.
Utility model content
The utility model is intended at least solve one of technical problem in the prior art.For this purpose, the utility model
Purpose is to propose a kind of three-cylinder engine bent axle with five pieces of balance weights, light-weighted simultaneously in realization, keeps bent axle
The friction loss of moment of flexure balanced ratio, bearing load and bearing in rational.
According to a kind of three-cylinder engine bent axle with five pieces of balance weights of the utility model embodiment, including crank arm group
Part, trunnion and rod journal, the crank arm assembly are arranged between front end and the rear end portion of the trunnion, the master
Axle journal and the rod journal are connected with the crank arm assembly；
The crank arm assembly successively include the first crank arm and be arranged on first crank arm the first balance weight,
It second crank arm and the second balance weight being arranged on second crank arm, the 3rd crank arm, the 4th crank arm and is arranged on
The 3rd balance weight, the 5th crank arm and the 4th balance weight being arranged on the 5th crank arm on 4th crank arm and
Six-throw arm and the 5th balance weight being arranged on the six-throw arm；
Balance weight is not provided on 3rd crank arm；
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are big flat
Weigh block；
3rd balance weight is small balance weight.
Further, it is both provided with duplicate removal groove on the inside of first crank arm and the 5th crank arm.
Further, it is both provided with duplicate removal groove on the inside of second crank arm and the six-throw arm.
Further, first balance weight, second balance weight, the 4th balance weight and the 5th balance weight
Inside be both provided with duplicate removal groove.
Further, the duplicate removal groove is set along forging die parting line.
Further, the rod journal side of first crank arm adds repeated hole equipped with the first machine, and described first
Machine adds the diameter of repeated hole and structure size and oil duct the arrangement phase of depth and the rod journal of first crank arm
Matching.
Further, the rod journal side of the 5th crank arm adds repeated hole equipped with the second machine, and described second
Machine adds the diameter of repeated hole and structure size and oil duct the arrangement phase of depth and the rod journal of the 5th crank arm
Matching.
Further, the rod journal side of the 3rd crank arm adds repeated hole equipped with the 3rd machine, and the described 3rd
Machine adds the diameter of repeated hole and structure size and oil duct the arrangement phase of depth and the rod journal of the 3rd crank arm
Matching.
Further, the pattern draft of the small balance weight is 1.5 ° -3 °.
Further, first crank arm and first balance weight are integrally formed, second crank arm with it is described
Second balance weight is integrally formed,
4th crank arm is integrally formed with the 3rd balance weight,
5th crank arm is integrally formed with the 4th balance weight, the six-throw arm and the 5th balance weight
It is integrally formed.
Compared with prior art, the implementation of the utility model can bring following advantageous effect：
1st, on the basis of the conventional engine bent axle that the utility model is provided in the prior art, eliminated by rationally designing
The balance number of blocks of bent axle is become five pieces from six pieces, reduces bent axle weight, realize by the balance weight on the 3rd crank arm
The lightweight of three cylinder machine engine crankshafts, saves the cost of raw material, advantageously reduces complete-vehicle oil consumption.
2nd, the utility model devises a small balance weight on the 4th crank arm, is realizing the same of bent axle lightweight drop weight
When, bent axle reasonably interior moment of flexure balanced ratio can also be kept, ensures base bearing load and main bearing friction loss in zone of reasonableness
It is interior.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the stereoscopic schematic diagram of the three-cylinder engine bent axle with five pieces of balance weights provided by the utility model；
Fig. 2 is the structure diagram of the 4th crank arm and the 3rd balance weight provided by the utility model；
Fig. 3 is the distribution schematic diagram of duplicate removal groove provided by the utility model；
Fig. 4 is the duplicate removal groove location schematic diagram on the inside of the first crank arm and the first balance weight provided by the utility model；
Fig. 5 is the duplicate removal groove location schematic diagram on the inside of the 5th crank arm and the 4th balance weight provided by the utility model；
Fig. 6 is the duplicate removal groove location schematic diagram on the inside of the second crank arm and the second balance weight provided by the utility model；
Fig. 7 is the duplicate removal groove location schematic diagram on the inside of six-throw arm and the 5th balance weight provided by the utility model；
Fig. 8 is the structure diagram that rod journal side provided by the utility model machine adds repeated hole；
Fig. 9 is another structure diagram that rod journal side provided by the utility model machine adds repeated hole.
Wherein, the first crank arms of 1- and the first balance weight, the first machines of 11- add repeated hole, the second crank arms of 2- and second flat
Weigh block, the 3rd crank arms of 3-, and the 3rd machines of 31- add repeated hole, the 4th crank arms of 4- and the 3rd balance weight, the 5th crank arms of 5- and the
Four balance weights, the second machines of 51- add repeated hole, 6- six-throws arm and the 5th balance weight, 7- duplicate removal grooves, 8- forging die parting lines.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the utility model, it is to be understood that term " on ", " under ", " top ", " bottom ", " interior ", " outer " etc.
The orientation or position relationship of instruction are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model
There must be specific orientation with the device or element for simplifying description rather than instruction or hint meaning, with specific orientation
Construction and operation, therefore it is not intended that limitation to the utility model.In the description of the utility model, the meaning of " multiple "
It is two or more, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, can make to be fixedly connected or be detachably connected or integral；Can be
Mechanical connection or electrical connection；It can make to be connected directly, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
Embodiment 1
Fig. 1 is the stereoscopic schematic diagram of the three-cylinder engine bent axle with five pieces of balance weights provided by the utility model, such as Fig. 1
Shown, the utility model provides a kind of three-cylinder engine bent axle with five pieces of balance weights, including crank arm assembly, trunnion
And rod journal, the crank arm assembly are arranged between front end and the rear end portion of the trunnion, the trunnion and institute
Rod journal is stated to be connected with the crank arm assembly；
The crank arm assembly includes the first crank arm and the first balance weight 1 being arranged on the first crank arm, the successively
Two crank arms and the second balance weight 2 being arranged on the second crank arm, the 3rd crank arm 3, the 4th crank arm and it is arranged on the 4th
The 3rd balance weight 4, the 5th crank arm and the 4th balance weight 5 and six-throw arm being arranged on the 5th crank arm on crank arm
And it is arranged on the 5th balance weight 6 on six-throw arm；Balance weight is not provided on 3rd crank arm；
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are big flat
Weigh block；In one embodiment, first balance weight, second balance weight, the 4th balance weight and described 5th flat
Weighing apparatus block is of same size；In one embodiment, first balance weight, second balance weight, the 4th balance weight and institute
State the 5th balance weight width difference.
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are mainly used for
Balance the distinctive initial unbalance torque of three-cylinder engine, the initial unbalance torque by 100% rotatory inertia torque and
50% the first order reciprocating inertia force square is formed.
In the prior art, there are one conventional three-cylinder engine bent axle is all provided on the 3rd crank arm 3 and the 4th crank arm
Balance weight, the balance weight are used for the interior moment of flexure of balance crankshaft.The present embodiment reduces bent axle initially not by structure optimization measure
Trimming moment and interior moment of flexure, can be without balance weight on the 3rd crank arm 3 of bent axle after optimization, it is only necessary to be set on the 4th crank arm
A small balance weight is put with regard to moment of flexure balanced ratio in holding bent axle, base bearing load and main bearing friction loss can be made to be maintained at reasonable
In the range of.Fig. 2 is the structure diagram of the 4th crank arm and the 3rd balance weight provided by the utility model, as shown in Fig. 2, described
3rd balance weight is small balance weight, and the 3rd balance weight is used for the interior moment of flexure of balance crankshaft, reduces bearing load.Using empty
Between divide mould in the case of, which is designed as form as shown in Figure 2 according to draft direction.
Specifically, the radius of the 3rd balance weight is less than the radius of big balance weight.
It needs to open mold releasability after Die-Casting shaping, for convenience of apperance (or core) is taken from molding sand (or core box)
The problems such as going out, avoiding that " buckling die ", " pulling " occurs destroys cavity (or core), and each side in vertical-parting face should have on casting
Gradient, this gradient is known as pattern draft.Pattern draft inside membrane cavity since die parting line or close to external mold side stretches, general oblique
It spends smaller.In one embodiment, the pattern draft of the small balance weight is 1.5 °.In one embodiment, it is described small flat
The pattern draft of weighing apparatus block is 2.3 °.In one embodiment, the pattern draft of the small balance weight is 3 °.
Specifically, first crank arm and first balance weight are the integrated molding components by alloy steel making, institute
It is the integrated molding component by alloy steel making to state the second crank arm and second balance weight, the 4th crank arm with it is described
3rd balance weight is the integrated molding component by alloy steel making, and the 5th crank arm and the 4th balance weight are by alloy
The integrated molding component of steel making, the six-throw arm and the integrated molding structure that the 5th balance weight is by alloy steel making
Part.
Compared with prior art, the present embodiment has the advantages that：
1st, on the basis of the conventional engine bent axle that the utility model is provided in the prior art, by substantial amounts of simulation analysis
And structure optimization, rationally design crankshaft structure and simultaneously eliminate the balance weight on the 3rd crank arm, by the balance number of blocks of bent axle from
Six pieces become five pieces, reduce bent axle weight, realize the lightweight of three cylinder machine engine crankshafts.
2nd, the utility model devises a small balance weight on the 4th crank arm, is realizing the same of bent axle lightweight drop weight
When, bent axle reasonably interior moment of flexure balanced ratio can also be kept, ensures base bearing load and main bearing friction loss in zone of reasonableness
It is interior.
Embodiment 2
Fig. 1 is the stereoscopic schematic diagram of the three-cylinder engine bent axle with five pieces of balance weights provided by the utility model, such as Fig. 1
Shown, the utility model provides a kind of three-cylinder engine bent axle with five pieces of balance weights, including crank arm assembly, trunnion
And rod journal, the crank arm assembly are arranged between front end and the rear end portion of the trunnion, the trunnion and institute
Rod journal is stated to be connected with the crank arm assembly；
The crank arm assembly includes the first crank arm and the first balance weight 1 being arranged on the first crank arm, the successively
Two crank arms and the second balance weight 2 being arranged on the second crank arm, the 3rd crank arm 3, the 4th crank arm and it is arranged on the 4th
The 3rd balance weight 4, the 5th crank arm and the 4th balance weight 5 and six-throw arm being arranged on the 5th crank arm on crank arm
And it is arranged on the 5th balance weight 6 on six-throw arm；Balance weight is not provided on 3rd crank arm；
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are big flat
Weigh block；In one embodiment, first balance weight, second balance weight, the 4th balance weight and described 5th flat
Weighing apparatus block is of same size；In one embodiment, first balance weight, second balance weight, the 4th balance weight and institute
State the 5th balance weight width difference.
Fig. 2 is the structure diagram of the 4th crank arm and the 3rd balance weight provided by the utility model, as shown in Fig. 2, institute
The 3rd balance weight is stated as small balance weight, the 3rd balance weight is used for the interior moment of flexure of balance crankshaft, reduces bearing load.It is using
In the case that mould is divided in space, which is designed as form as shown in Figure 2 according to draft direction.
Specifically, the radius of the 3rd balance weight is less than the radius of big balance weight.
Fig. 3 is the distribution schematic diagram of duplicate removal groove provided by the utility model, as shown in figure 3, in order to effectively mitigate song
The weight of axis, while good strength and stiffness can also be kept, the three-cylinder engine bent axle is in part crank arm and balance weight
Inside be provided with duplicate removal groove 7.
Specifically, Fig. 4 is the duplicate removal groove location on the inside of the first crank arm and the first balance weight provided by the utility model
Schematic diagram, Fig. 5 are the duplicate removal groove location schematic diagrames on the inside of the 5th crank arm and the 4th balance weight provided by the utility model, such as
Shown in Fig. 4 and Fig. 5, duplicate removal groove 7, first balance are both provided on the inside of first crank arm and the 5th crank arm
Duplicate removal groove 7 is both provided on the inside of block and the 4th balance weight.
Fig. 6 is the duplicate removal groove location schematic diagram on the inside of the second crank arm and the second balance weight provided by the utility model,
Fig. 7 is the duplicate removal groove location schematic diagram on the inside of six-throw arm and the 5th balance weight provided by the utility model, such as Fig. 6 and figure
Shown in 7, duplicate removal groove 7, second balance weight and institute are both provided on the inside of second crank arm and the six-throw arm
It states and is both provided with duplicate removal groove 7 on the inside of the 5th balance weight.
Specifically, the present embodiment is in first crank arm and first balance weight, second crank arm and described
On the inside of second balance weight, the 5th crank arm and the 4th balance weight and the six-throw arm and the 5th balance weight
Interior setting duplicate removal groove 7, these positions are inert weight regions, to crankshaft strength and stiffness effect very little, therefore can be removed
The inert weight of these positions is so as to being greatly reduced the weight of bent axle.By repetition test, the duplicate removal groove 7 divides mould along forging
Line 8 sets relatively reasonable.
It needs to open mold releasability after Die-Casting shaping, for convenience of apperance (or core) is taken from molding sand (or core box)
The problems such as going out, avoiding that " buckling die ", " pulling " occurs destroys cavity (or core), and each side in vertical-parting face should have on casting
Gradient, this gradient is known as pattern draft.Pattern draft inside membrane cavity since die parting line or close to external mold side stretches, general oblique
It spends smaller.In one embodiment, the pattern draft of the small balance weight is 1.5 °.In one embodiment, it is described small flat
The pattern draft of weighing apparatus block is 2.3 °.In one embodiment, the pattern draft of the small balance weight is 3 °.
Specifically, first crank arm and first balance weight are the integrated molding components by alloy steel making, institute
It is the integrated molding component by alloy steel making to state the second crank arm and second balance weight, the 4th crank arm with it is described
3rd balance weight is the integrated molding component by alloy steel making, and the 5th crank arm and the 4th balance weight are by alloy
The integrated molding component of steel making, the six-throw arm and the integrated molding structure that the 5th balance weight is by alloy steel making
Part.
Compared with prior art, the present embodiment has the advantages that：
1st, on the basis of the conventional engine bent axle that the utility model is provided in the prior art, eliminated by rationally designing
The balance number of blocks of bent axle is become five pieces from six pieces, reduces bent axle weight, realize by the balance weight on the 3rd crank arm
The lightweight of three cylinder machine engine crankshafts.
2nd, the utility model devises a small balance weight on the 4th crank arm, is realizing the same of bent axle lightweight drop weight
When, bent axle reasonably interior moment of flexure balanced ratio can also be kept, ensures base bearing load and main bearing friction loss in zone of reasonableness
It is interior.
3rd, bent axle provided by the utility model is ensureing song by increasing forging duplicate removal pit on crank arm and balance weight
On the premise of moment of flexure balanced ratio meet demand, base bearing load do not deteriorate in axis, bent axle weight is reduced, saves raw material
Cost simultaneously advantageously reduces complete-vehicle oil consumption.
Embodiment 3
Fig. 1 is the stereoscopic schematic diagram of the three-cylinder engine bent axle with five pieces of balance weights provided by the utility model, such as Fig. 1
Shown, the utility model provides a kind of three-cylinder engine bent axle with five pieces of balance weights, including crank arm assembly, trunnion
And rod journal, the crank arm assembly are arranged between front end and the rear end portion of the trunnion, the trunnion and institute
Rod journal is stated to be connected with the crank arm assembly；
The crank arm assembly includes the first crank arm and the first balance weight 1 being arranged on the first crank arm, the successively
Two crank arms and the second balance weight 2 being arranged on the second crank arm, the 3rd crank arm 3, the 4th crank arm and it is arranged on the 4th
The 3rd balance weight 4, the 5th crank arm and the 4th balance weight 5 and six-throw arm being arranged on the 5th crank arm on crank arm
And it is arranged on the 5th balance weight 6 on six-throw arm；Balance weight is not provided on 3rd crank arm；
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are big flat
Weigh block；In one embodiment, first balance weight, second balance weight, the 4th balance weight and described 5th flat
Weighing apparatus block is of same size；In one embodiment, first balance weight, second balance weight, the 4th balance weight and institute
State the 5th balance weight width difference.
Fig. 2 is the structure diagram of the 4th crank arm and the 3rd balance weight provided by the utility model, as shown in Fig. 2, institute
The 3rd balance weight is stated as small balance weight, the 3rd balance weight is used for the interior moment of flexure of balance crankshaft, reduces bearing load.It is using
In the case that mould is divided in space, which is designed as form as shown in Figure 2 according to draft direction.
Specifically, the radius of the 3rd balance weight is less than the radius of big balance weight.
Fig. 3 is the distribution schematic diagram of duplicate removal groove provided by the utility model, as shown in figure 3, in order to effectively mitigate song
The weight of axis, while good strength and stiffness can also be kept, the three-cylinder engine bent axle is in part crank arm and balance weight
Inside be provided with duplicate removal groove 7.
Specifically, Fig. 4 is the duplicate removal groove location on the inside of the first crank arm and the first balance weight provided by the utility model
Schematic diagram, Fig. 5 are the duplicate removal groove location schematic diagrames on the inside of the 5th crank arm and the 4th balance weight provided by the utility model, such as
Shown in Fig. 4 and Fig. 5, duplicate removal groove 7, first balance are both provided on the inside of first crank arm and the 5th crank arm
Duplicate removal groove 7 is both provided on the inside of block and the 4th balance weight.
Fig. 6 is the duplicate removal groove location schematic diagram on the inside of the second crank arm and the second balance weight provided by the utility model,
Fig. 7 is the duplicate removal groove location schematic diagram on the inside of six-throw arm and the 5th balance weight provided by the utility model, such as Fig. 6 and figure
Shown in 7, duplicate removal groove 7, second balance weight and institute are both provided on the inside of second crank arm and the six-throw arm
It states and is both provided with duplicate removal groove 7 on the inside of the 5th balance weight.
Specifically, the present embodiment is in first crank arm and first balance weight, second crank arm and described
On the inside of second balance weight, the 5th crank arm and the 4th balance weight and the six-throw arm and the 5th balance weight
Interior setting duplicate removal groove 7, these positions are inert weight regions, to crankshaft strength and stiffness effect very little, therefore can be removed
The inert weight of these positions is so as to being greatly reduced the weight of bent axle.By repetition test, the duplicate removal groove 7 divides mould along forging
Line 8 sets relatively reasonable.
In order to further mitigate the weight of bent axle, the first preferable embodiment of the utility model is connected on crank arm
What appropriate diameter and depth were bored in rational position on bar axle journal side removes repeated hole.Due to bent axle initial unbalance power and torque with
And the source of interior unbalanced moments is all the unbalance mass, being located on rod journal, is meaned in rod journal flank hole duplicate removal
The quality of balance weight can while be reduced again by, and it is double to drop weight effect.
Fig. 8 is the structure diagram that rod journal side provided by the utility model machine adds repeated hole, and Fig. 9 is that this practicality is new
The rod journal side machine that type provides adds another structure diagram of repeated hole, as shown in Figure 8 and Figure 9, specifically, described first
The rod journal side of crank arm adds repeated hole 11 equipped with the first machine, and first machine adds the diameter and depth of repeated hole 11
Match with structure size and the oil duct arrangement of the rod journal of first crank arm.Specifically, the described 5th is bent
The rod journal side of shaft arm adds repeated hole 51 equipped with the second machine, second machine add repeated hole 51 diameter and depth with
Structure size and the oil duct arrangement of the rod journal of 5th crank arm match.Specifically, the 3rd crank
The rod journal side of arm 3 adds repeated hole 31 equipped with the 3rd machine, the 3rd machine add repeated hole 31 diameter and depth with
Structure size and the oil duct arrangement of the rod journal of 3rd crank arm 3 match.
It needs to open mold releasability after Die-Casting shaping, for convenience of apperance (or core) is taken from molding sand (or core box)
The problems such as going out, avoiding that " buckling die ", " pulling " occurs destroys cavity (or core), and each side in vertical-parting face should have on casting
Gradient, this gradient is known as pattern draft.Pattern draft inside membrane cavity since die parting line or close to external mold side stretches, general oblique
It spends smaller.In one embodiment, the pattern draft of the small balance weight is 1.5 °.In one embodiment, it is described small flat
The pattern draft of weighing apparatus block is 2.3 °.In one embodiment, the pattern draft of the small balance weight is 3 °.
Specifically, first crank arm and first balance weight are the integrated molding components by alloy steel making, institute
It is the integrated molding component by alloy steel making to state the second crank arm and second balance weight, the 4th crank arm with it is described
3rd balance weight is the integrated molding component by alloy steel making, and the 5th crank arm and the 4th balance weight are by alloy
The integrated molding component of steel making, the six-throw arm and the integrated molding structure that the 5th balance weight is by alloy steel making
Part.
Compared with prior art, the present embodiment has the advantages that：
1st, on the basis of the conventional engine bent axle that the utility model is provided in the prior art, eliminated by rationally designing
The balance number of blocks of bent axle is become five pieces from six pieces, reduces bent axle weight, realize by the balance weight on the 3rd crank arm
The lightweight of three cylinder machine engine crankshafts.
2nd, the utility model devises a small balance weight on the 4th crank arm, is realizing the same of bent axle lightweight drop weight
When, bent axle reasonably interior moment of flexure balanced ratio can also be kept, ensures base bearing load and main bearing friction loss in zone of reasonableness
It is interior.
3rd, bent axle provided by the utility model is by the way that duplicate removal pit is forged in increase on crank arm and balance weight and machine adds
The designs such as repeated hole are gone, on the premise of ensureing that moment of flexure balanced ratio meet demand, base bearing load do not deteriorate in bent axle, are reduced
Bent axle weight saves the cost of raw material and advantageously reduces complete-vehicle oil consumption.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine the embodiment or example particular features, structures, materials, or characteristics described
It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms
It need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can will be in this specification
The different embodiments or example of description are engaged and combined.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it is impossible to be interpreted as the limitation to the utility model, those of ordinary skill in the art are in the scope of the utility model
It is interior above-described embodiment can be changed, modifications and variations.
Claims (10)
1. a kind of three-cylinder engine bent axle with five pieces of balance weights, described including crank arm assembly, trunnion and rod journal
Crank arm assembly is arranged between front end and the rear end portion of the trunnion, and the trunnion and the rod journal are and institute
State crank arm assembly connection, which is characterized in that
The crank arm assembly successively include the first crank arm and be arranged on first crank arm the first balance weight (1),
Second crank arm and the second balance weight (2) being arranged on second crank arm, the 3rd crank arm (3), the 4th crank arm and
The 3rd balance weight (4) that is arranged on the 4th crank arm, the 5th crank arm and be arranged on the 5th crank arm
Four balance weights (5) and six-throw arm and the 5th balance weight (6) being arranged on the six-throw arm；
First balance weight, second balance weight, the 4th balance weight and the 5th balance weight are big balance weight；
3rd balance weight is small balance weight.
2. three-cylinder engine bent axle according to claim 1, which is characterized in that first crank arm and the 5th song
Duplicate removal groove (7) is both provided on the inside of shaft arm.
3. three-cylinder engine bent axle according to claim 1, which is characterized in that second crank arm and the 6th song
Duplicate removal groove (7) is both provided on the inside of shaft arm.
4. three-cylinder engine bent axle according to claim 1, which is characterized in that first balance weight, described second flat
Duplicate removal groove (7) is both provided on the inside of weighing apparatus block, the 4th balance weight and the 5th balance weight.
5. the three-cylinder engine bent axle according to Claims 2 or 3 or 4, which is characterized in that duplicate removal groove (7) edge forging
Make die parting line (8) setting.
6. three-cylinder engine bent axle according to claim 1 or 2, which is characterized in that the company of first crank arm
Bar axle journal side adds repeated hole (11) equipped with the first machine, and first machine adds the diameter of repeated hole (11) and depth and described first
Structure size and the oil duct arrangement of the rod journal of crank arm match.
7. three-cylinder engine bent axle according to claim 1 or 2, which is characterized in that the company of the 5th crank arm
Bar axle journal side adds repeated hole (51) equipped with the second machine, and second machine adds the diameter of repeated hole (51) and depth and the described 5th
Structure size and the oil duct arrangement of the rod journal of crank arm match.
8. three-cylinder engine bent axle according to claim 1, which is characterized in that the company of the 3rd crank arm (3)
Bar axle journal side adds repeated hole (31) equipped with the 3rd machine, and the 3rd machine adds the diameter of repeated hole (31) and depth and the described 3rd
Structure size and the oil duct arrangement of the rod journal of crank arm (3) match.
9. three-cylinder engine bent axle according to claim 1, which is characterized in that the pattern draft of the small balance weight is
1.5°-3°。
10. three-cylinder engine bent axle according to claim 1, which is characterized in that
First crank arm is integrally formed with first balance weight, second crank arm and second balance weight one
Shaping,
4th crank arm is integrally formed with the 3rd balance weight,
5th crank arm is integrally formed with the 4th balance weight, the six-throw arm and the 5th balance weight one
Shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276418.0U CN207393705U (en) | 2017-09-30 | 2017-09-30 | A kind of three-cylinder engine bent axle with five pieces of balance weights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276418.0U CN207393705U (en) | 2017-09-30 | 2017-09-30 | A kind of three-cylinder engine bent axle with five pieces of balance weights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393705U true CN207393705U (en) | 2018-05-22 |
Family
ID=62330686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276418.0U Expired - Fee Related CN207393705U (en) | 2017-09-30 | 2017-09-30 | A kind of three-cylinder engine bent axle with five pieces of balance weights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393705U (en) |
-
2017
- 2017-09-30 CN CN201721276418.0U patent/CN207393705U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8533946B2 (en) | Method of manufacturing a crankshaft | |
| US20160084295A1 (en) | Method of manufacturing a crankshaft from a high shrink metal alloy | |
| CN100560246C (en) | Universal combined crankshaft used for large boat crank throw curved forging counterdie and method for designing | |
| US9186720B2 (en) | Method of simultaneously manufacturing a plurality of crankshafts | |
| CN207521649U (en) | The sand mould structure of automobile dynamic system bent axle | |
| CN207393705U (en) | A kind of three-cylinder engine bent axle with five pieces of balance weights | |
| CN207103754U (en) | The sand mould structure pour mass of automobile dynamic system bent axle shell mould | |
| US10670131B2 (en) | Complex cast component and casting method therefor | |
| CN207521644U (en) | The shell structure of three cylinder hollow crankshafts of automobile engine | |
| CN208019369U (en) | A kind of engine cam more than one piece casting mould | |
| CN201836603U (en) | Double-side-wall type aluminium alloy die-casting flywheel shell | |
| CN201306410Y (en) | Dynamic-balance counter weight device of asymmetric crank shaft | |
| CN201807693U (en) | Forging die for crankshaft | |
| CN204267154U (en) | Motor and piston connecting rod unit thereof | |
| CN207695575U (en) | A kind of sand mould structure of three cylinder crankshafts of automobile engine | |
| CN210702350U (en) | Mould for casting flywheel by shell mould core process | |
| CN209647570U (en) | A kind of low pressure casting die of aluminium alloy outer rotor casting | |
| CN111637145A (en) | Weight-reduced cast iron crankshaft and casting method | |
| CN208311246U (en) | engine crankshaft and vehicle | |
| CN105583855B (en) | Rocking bar and joint type industrial robot for joint type industrial robot | |
| CN206129860U (en) | Bent axle with major -minor balancing piece | |
| US20140367064A1 (en) | Method of simultaneously manufacturing a plurality of crankshafts | |
| CN201089001Y (en) | Combined universal crankshaft and bell crank bending forging bottom-die for large-scale ship | |
| CN201764203U (en) | Single side wall type aluminum alloy die-casting flywheel cover | |
| CN107391779B (en) | A kind of blank shape design method of die forging crankshaft of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190116 Address after: 318057 Economic Development Zone, Taizhou City, Zhejiang Province, west of Haihong Avenue and south of Binba Road, Area B Co-patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: TAIZHOU BINHAI GEELY ENGINE Co.,Ltd. Address before: 318000 Zhejiang Taizhou Binhai Industrial Park Staff Apartment Building 3 302 Rooms Patentee before: TAIZHOU GEELY LUOYOU ENGINE CO.,LTD. |
|
| 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: 20180522 Termination date: 20210930 |