CN102537020A - In-line six-cylinder internal combustion engine crankshaft with differential balance blocks - Google Patents
In-line six-cylinder internal combustion engine crankshaft with differential balance blocks Download PDFInfo
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- CN102537020A CN102537020A CN2012100435358A CN201210043535A CN102537020A CN 102537020 A CN102537020 A CN 102537020A CN 2012100435358 A CN2012100435358 A CN 2012100435358A CN 201210043535 A CN201210043535 A CN 201210043535A CN 102537020 A CN102537020 A CN 102537020A
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Abstract
An in-line six-cylinder internal combustion engine crankshaft with differentiated balance blocks comprises a crankshaft (1), wherein a first cylinder crank (4), a third cylinder crank (5), a fourth cylinder crank (6) and a sixth cylinder crank (7) are sequentially arranged on the crankshaft (1), a large balance block (2) and a small balance block (3) are respectively arranged on the first cylinder crank (4), the third cylinder crank (5), the fourth cylinder crank (6) and the sixth cylinder crank (7), the large balance block and the small balance block are respectively arranged on the first cylinder crank, the third cylinder crank, the fourth cylinder crank and the sixth cylinder crank, the balance blocks on different cranks are differentially arranged according to the difference of the bending moment effect in the balance cranks on different positions, the whole weight of the crankshaft is lightened, the moment generated by the balance blocks is increased, and the utilization efficiency of the balance blocks is, the self-vibration frequency of an engine shafting is improved, and the torsional vibration level and the strength reliability of the crankshaft are improved.
Description
Technical field
The present invention relates to a kind of I. C. engine crankshaft, relate in particular to a kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block.
Background technique
The torsional oscillation level of I. C. engine crankshaft and strength reliability directly have influence on the performance and the working life of motor; And car load stationarity and comfort level; Because the structural feature of bent axle, in the crankshaft rotating working procedure, outside satisfying bent axle under the situation of balance; On each cross section of bent axle, still receive the interior moment of flexure that crank throw centrifugal force causes; Under interior moment of flexure effect, bent axle can produce crooked in the work engineering, and the deflection of crankshaft on this microcosmic can exert an influence to the load of bent axle, the force-bearing situation lubricated, bearing support of bearing.The main method of moment of flexure is arranged equilibrium block exactly in the control bent axle on bent axle; Traditional six-in-line I. C. engine crankshaft equilibrium block mainly adopts eight equilibrium block arrangements; Promptly on the crank of the 1st cylinder, the 3rd cylinder, the 4th cylinder, the 6th cylinder, arrange equilibrium block respectively, and each equilibrium block is big or small basic identical.But crankshaft counter balance receives in reducing the bent axle working procedure in interior moment of flexure, the distortion of control deflection of crankshaft, also can increase the weight and the rotary inertia of bent axle, and the cost of bent axle is increased, and torsion frequency reduces.
Like Chinese patent notification number: CN201125933Y, open day: the utility model patent on October 1st, 2008 disclosed a kind of automobile engine crankshaft, comprises main shaft; It is characterized in that: eight equilibrium blocks are arranged on the main shaft, adjacently connected by four pitman shafts between the equilibrium block in twos, four pitman shafts are along main shaft balance up and down; Communicate by oil duct between main shaft and the pitman shaft; Bent axle adopts the full equilibrium structure of eight equilibrium blocks, adopts different balance piece thickness according to different diameter of axle loads simultaneously, under the prerequisite that satisfies positive machine balance requirement, effectively alleviates the weight of bent axle; Communicate by oil duct between each main shaft and pitman shaft, guaranteed the lubricated of bent axle and connecting rod.But the counterbalance size of this device is basic identical, and does not have differentiation to arrange, make gross weight bigger, the utilization ratio of counterbalance is not high, is unfavorable for improving the torsional oscillation level of bent axle.
Summary of the invention
The objective of the invention is basic identical and do not have differentiation to arrange to existing equilibrium block size; Make gross weight bigger; Defective that the utilization ratio of equilibrium block is not high and deficiency provide a kind of simple in structure, and equilibrium block has been carried out the differentiation layout; Increased the moment that equilibrium block produces, a kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block that the equilibrium block utilization ratio is higher.
For realizing above-mentioned purpose; Technical solution of the present invention is: a kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block; Comprise bent axle; Be disposed with the first cylinder crank, the 3rd cylinder crank, the 4th cylinder crank and the 6th cylinder crank on the bent axle, be respectively arranged with a big equilibrium block and a little equilibrium block on the said first cylinder crank, the 3rd cylinder crank, the 4th cylinder crank and the 6th cylinder crank.
Be fixed with big equilibrium block on the outboard end of the said first cylinder crank; The other end of the first cylinder crank is fixed with little equilibrium block; The end of the 3rd cylinder crank and be fixed with little equilibrium block near a side of the first cylinder crank; The other end of the 3rd cylinder crank is fixed with big equilibrium block, the end of the 4th cylinder crank and be fixed with big equilibrium block near a side of the 3rd cylinder crank, and the opposite side of the 4th cylinder crank is fixed with little equilibrium block; The end of the 6th cylinder crank and be fixed with little equilibrium block near a side of the 4th cylinder crank, the opposite side of the 6th cylinder crank is fixed with big equilibrium block.
The big equilibrium block width of said big equilibrium block is 3:2-2:1 with the ratio of the little equilibrium block width of little equilibrium block.
The invention has the beneficial effects as follows:
1. the present invention is respectively arranged with a big equilibrium block and a little equilibrium block on the first cylinder crank, the 3rd cylinder crank, the 4th cylinder crank and the 6th cylinder crank; According to the difference of moment of flexure effect in the equilibrium block balance crankshaft on the diverse location, equilibrium block on the different cranks has been carried out the differentiation layout.
2. the present invention is simple in structure, has alleviated the overall weight of bent axle, has increased the moment that equilibrium block produces, and helps improving the utilization ratio of equilibrium block, has improved the natural frequency of vibration of engine shaft system, has improved the torsional oscillation level and the strength reliability of bent axle.
Description of drawings
Fig. 1 is the structural representation of invention.
Fig. 2 is the structural representation of the big equilibrium block 2 of the present invention.
Fig. 3 is the structural representation of the little equilibrium block 3 of the present invention.
Among the figure: bent axle 1, big equilibrium block 2, little equilibrium block 3, the first cylinder cranks 4, the three cylinder cranks 5, the four cylinder cranks 6, the six cylinder cranks 7, big equilibrium block width L1, little equilibrium block width L2.
Embodiment
Below in conjunction with description of drawings and embodiment the present invention is made further detailed description.
Referring to Fig. 1 to Fig. 3; A kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block of the present invention; Comprise bent axle 1; Be disposed with the first cylinder crank 4, the 3rd cylinder crank 5, the 4th cylinder crank 6 and the 6th cylinder crank 7 on the bent axle 1, be respectively arranged with a big equilibrium block 2 and a little equilibrium block 3 on the said first cylinder crank 4, the 3rd cylinder crank 5, the 4th cylinder crank 6 and the 6th cylinder crank 7.
Be fixed with big equilibrium block 2 on the outboard end of the said first cylinder crank 4; The other end of the first cylinder crank 4 is fixed with little equilibrium block 3; The end of the 3rd cylinder crank 5 and be fixed with little equilibrium block 3 near a side of the first cylinder crank 4; The other end of the 3rd cylinder crank 5 is fixed with the end of big equilibrium block 2, the four cylinder cranks 6 and is fixed with little equilibrium block 3 near the opposite side that a side of the 3rd cylinder crank 5 is fixed with big equilibrium block 2, the four cylinder cranks 6; The end of the 6th cylinder crank 7 and be fixed with big equilibrium block 2 near the opposite side that a side of the 4th cylinder crank 6 is fixed with little equilibrium block 3, the six cylinder cranks 7.
The big equilibrium block width L1 of said big equilibrium block 2 is 3:2-2:1 with the ratio of the little equilibrium block width L2 of little equilibrium block 3.
Be disposed with the first cylinder crank 4, the 3rd cylinder crank 5, the 4th cylinder crank 6 and the 6th cylinder crank 7 on the bent axle 1; Mechanism according to moment of flexure in the crankshaft counter balance balance crankshaft; The efficient of moment of flexure is different in the equilibrium block balance crankshaft on diverse location, on the first cylinder crank 4, the 3rd cylinder crank 5, the 4th cylinder crank 6 and the 6th cylinder crank 7, is respectively arranged with a big equilibrium block 2 and a little equilibrium block 3.Wherein, two cranks of the first cylinder crank 4 and the 3rd cylinder crank 5 apart from each others are provided with big equilibrium block 2, are provided with little equilibrium block 3 at a distance of two nearer cranks.The big equilibrium block width L1 of big equilibrium block 2 is 3:2-2:1 with the ratio of the little equilibrium block width L2 of little equilibrium block 3.According to the difference of moment of flexure effect in the equilibrium block balance crankshaft on the diverse location, equilibrium block on the different cranks is carried out differentiation arrange.
Between the first cylinder crank 4 and the 3rd cylinder crank 5 is second cylinder; On the pairing bent axle 1 of second cylinder equilibrium block is not set; Between the 4th cylinder crank 6 and the 6th cylinder crank 7 is the 5th cylinder; On the pairing bent axle 1 of the 5th cylinder equilibrium block is not set yet, can adopts this arrangement for the bent axle of six-in-line internal-combustion engine.
Be fixed with big equilibrium block 2 on the outboard end of the first cylinder crank 4; The other end of the first cylinder crank 4 is fixed with little equilibrium block 3; The end of the 3rd cylinder crank 5 and be fixed with little equilibrium block 3 near a side of the first cylinder crank 4; The other end of the 3rd cylinder crank 5 is fixed with the end of big equilibrium block 2, the four cylinder cranks 6 and is fixed with little equilibrium block 3 near the opposite side that a side of the 3rd cylinder crank 5 is fixed with big equilibrium block 2, the four cylinder cranks 6; The end of the 6th cylinder crank 7 and be fixed with big equilibrium block 2 near the opposite side that a side of the 4th cylinder crank 6 is fixed with little equilibrium block 3, the six cylinder cranks 7.So just the effective mass with more equilibrium blocks is arranged on the crank of apart from each other; Increased the moment that equilibrium block produces; Help improving the utilization ratio of equilibrium block, improved the natural frequency of vibration of engine shaft system, improved the torsional oscillation level and the strength reliability of bent axle 1.
Claims (3)
1. six-in-line I. C. engine crankshaft that has the differentiation equilibrium block; Comprise bent axle (1); Be disposed with the first cylinder crank (4), the 3rd cylinder crank (5), the 4th cylinder crank (6) and the 6th cylinder crank (7) on the bent axle (1), it is characterized in that: be respectively arranged with a big equilibrium block (2) and a little equilibrium block (3) on the said first cylinder crank (4), the 3rd cylinder crank (5), the 4th cylinder crank (6) and the 6th cylinder crank (7).
2. a kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block according to claim 1; It is characterized in that: be fixed with big equilibrium block (2) on the outboard end of the said first cylinder crank (4); The other end of the first cylinder crank (4) is fixed with little equilibrium block (3); The end of the 3rd cylinder crank (5) and be fixed with little equilibrium block (3) near a side of the first cylinder crank (4); The other end of the 3rd cylinder crank (5) is fixed with big equilibrium block (2); The end of the 4th cylinder crank (6) and be fixed with big equilibrium block (2) near a side of the 3rd cylinder crank (5); The opposite side of the 4th cylinder crank (6) is fixed with little equilibrium block (3), the end of the 6th cylinder crank (7) and be fixed with little equilibrium block (3) near a side of the 4th cylinder crank (6), and the opposite side of the 6th cylinder crank (7) is fixed with big equilibrium block (2).
3. a kind of six-in-line I. C. engine crankshaft that has the differentiation equilibrium block according to claim 1 is characterized in that: the big equilibrium block width (L1) of said big equilibrium block (2) is 3:2-2:1 with the ratio of the little equilibrium block width (L2) of little equilibrium block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210043535.8A CN102537020B (en) | 2012-02-24 | 2012-02-24 | Straight six-cylinder internal combustion engine crank shaft with differential balance blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210043535.8A CN102537020B (en) | 2012-02-24 | 2012-02-24 | Straight six-cylinder internal combustion engine crank shaft with differential balance blocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537020A true CN102537020A (en) | 2012-07-04 |
| CN102537020B CN102537020B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210043535.8A Active CN102537020B (en) | 2012-02-24 | 2012-02-24 | Straight six-cylinder internal combustion engine crank shaft with differential balance blocks |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9482307B2 (en) | 2014-11-26 | 2016-11-01 | Caterpillar Inc. | Multi-cylinder engine crankshaft torsional vibration absorber and balancer and process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688272B2 (en) * | 2002-05-29 | 2004-02-10 | Ford Global Technologies, Llc | Crankshaft assembly for enabling engine cylinder deactivation |
| US20040226393A1 (en) * | 2002-10-31 | 2004-11-18 | Soon-Jae Hong | Crankshaft having a damper |
| EP1750023A1 (en) * | 2005-08-01 | 2007-02-07 | Kabushiki Kaisha Toyota Jidoshokki | Crankshaft for V-type six-cylinder engine |
| EP1881212B1 (en) * | 2006-07-17 | 2009-01-07 | Peugeot Citroën Automobiles S.A. | Crankshaft with balance weight mounted on flanges for absorbing vibration transmitted to the cylinder block of an internal combustion engine |
| JP2010209969A (en) * | 2009-03-09 | 2010-09-24 | Toyota Motor Corp | Crankshaft |
| CN201636193U (en) * | 2009-12-15 | 2010-11-17 | 奇瑞汽车股份有限公司 | Forging crankshaft of in-line six cylinder engine |
| CN202468677U (en) * | 2012-02-24 | 2012-10-03 | 东风汽车有限公司 | In-line six-cylinder internal combustion engine crankshaft with differential balance blocks |
-
2012
- 2012-02-24 CN CN201210043535.8A patent/CN102537020B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688272B2 (en) * | 2002-05-29 | 2004-02-10 | Ford Global Technologies, Llc | Crankshaft assembly for enabling engine cylinder deactivation |
| US20040226393A1 (en) * | 2002-10-31 | 2004-11-18 | Soon-Jae Hong | Crankshaft having a damper |
| EP1750023A1 (en) * | 2005-08-01 | 2007-02-07 | Kabushiki Kaisha Toyota Jidoshokki | Crankshaft for V-type six-cylinder engine |
| EP1881212B1 (en) * | 2006-07-17 | 2009-01-07 | Peugeot Citroën Automobiles S.A. | Crankshaft with balance weight mounted on flanges for absorbing vibration transmitted to the cylinder block of an internal combustion engine |
| JP2010209969A (en) * | 2009-03-09 | 2010-09-24 | Toyota Motor Corp | Crankshaft |
| CN201636193U (en) * | 2009-12-15 | 2010-11-17 | 奇瑞汽车股份有限公司 | Forging crankshaft of in-line six cylinder engine |
| CN202468677U (en) * | 2012-02-24 | 2012-10-03 | 东风汽车有限公司 | In-line six-cylinder internal combustion engine crankshaft with differential balance blocks |
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|---|---|
| CN102537020B (en) | 2014-06-25 |
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Owner name: DONGFENG CAR CO. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130814 |
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Effective date of registration: 20130814 Address after: 430056 Wuhan economic and Technological Development Zone, Hubei Province, Dongfeng Road, No. 1, No. Applicant after: Dongfeng Motor Corporation Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Applicant before: DONGFENG MOTER Co.,Ltd. |
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Address after: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee after: DONGFENG MOTOR Corp. Address before: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee before: Dongfeng Motor Corporation |