DE102006043617A1 - Crankshaft for e.g. receiving and transmitting piston rod forces in six cylinder-row internal-combustion engine, has shaft pivots for supporting crankshaft, and balancing masses arranged in common plane running through longitudinal axis - Google Patents
Crankshaft for e.g. receiving and transmitting piston rod forces in six cylinder-row internal-combustion engine, has shaft pivots for supporting crankshaft, and balancing masses arranged in common plane running through longitudinal axis Download PDFInfo
- Publication number
- DE102006043617A1 DE102006043617A1 DE200610043617 DE102006043617A DE102006043617A1 DE 102006043617 A1 DE102006043617 A1 DE 102006043617A1 DE 200610043617 DE200610043617 DE 200610043617 DE 102006043617 A DE102006043617 A DE 102006043617A DE 102006043617 A1 DE102006043617 A1 DE 102006043617A1
- Authority
- DE
- Germany
- Prior art keywords
- crankshaft
- shaft journal
- combustion engine
- longitudinal axis
- balancing weights
- 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.)
- Withdrawn
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
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
- F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- 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
- F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Die Erfindung betrifft eine Kurbelwelle für eine Sechszylinder-Reihenbrennkraftmaschine umfassend Wellenzapfen zur Lagerung der Kurbelwelle, Kurbelzapfen zur Verbindung mit Pleueln sowie den Kurbelzapfen zugeordnete Ausgleichsmassen sowie ein Verfahren zur Herstellung einer Kurbelwelle und eine Brennkraftmaschine mit einer Kurbelwelle.The The invention relates to a crankshaft for a six-cylinder in-line engine comprising shaft journals for supporting the crankshaft, crankpins for connection with connecting rods and the crank pin associated with balancing weights and a method of manufacturing a crankshaft and an internal combustion engine with a crankshaft.
Sechszylinder-Reihenbrennkraftmaschinen weisen üblicherweise um jeweils 120° Kurbelwinkel gedrehte Hubstellungen auf, wobei die Hubstellungen der beiden mittleren Kurbelzapfen in Bezug auf den Kurbelwinkel gleich ausgerichtet sind und ausgehend vom mittleren Wellenzapfen in Richtung der beiden Kurbelwellenenden eine symmetrische Anordnung besteht. Bei einer aufsteigenden Nummerierung der Kurbelzapfen von einem Ende der Kurbelwelle zum anderen hin liegen beispielsweise der erste und sechste Kurbelzapfen bei 120° Kurbelwinkel, der zweite und fünfte Kurbelzapfen bei 240° Kurbelwinkel und der dritte und vierte Kurbelzapfen bei 360° Kurbelwinkel.Six-cylinder in-line engines usually have rotated by 120 ° crank angle Hubstellungen on, with the stroke positions of the two middle Crankpin are aligned in relation to the crank angle and starting from the middle shaft journal in the direction of the two Crankshaft ends a symmetrical arrangement exists. At a ascending numbering of the crankpins from one end of the crankshaft on the other hand lie, for example, the first and sixth crank pin at 120 ° crank angle, the second and fifth Crankpin at 240 ° crank angle and the third and fourth crankpins at 360 ° crank angle.
Um die Belastung insbesondere der Wellenzapfen, an denen die Kurbelwelle im Kurbelgehäuse gelagert ist, beim Betrieb der Brennkraftmaschine gering zu halten, sind jedem Kurbelzapfen Ausgleichsmassen zugeordnet, welche die Massenkräfte der oszillierenden Kolben, der rotierenden Kurbelzapfen und der eine zusammengesetzte Bewegung ausführenden Pleuel ausgleichen.Around the load in particular the shaft journal, where the crankshaft stored in the crankcase is to keep low during operation of the internal combustion engine, are assigned to each crank pin balancing weights, which the mass forces of oscillating piston, the rotating crankpin and the one performing composite movement Balance connecting rod.
Diese Ausgleichsmassen sind im Bereich der Kurbelwangen angeschmiedet und ausgehend von der Kurbelwellenlängsachse dem jeweiligen Kurbelzapfen gegenüberliegend angeordnet. Bei einer wie beschriebenen Anordnung der Kurbelzapfen bei 120°, 240° und 360° Kurbelwinkel liegen dann auch die Ausgleichsmassen bei 120°, 240° und 360° Kurbelwinkel. Die daraus resultierende Kurbelwellenform bedingt eine Hinterschnittproblematik aufgrund der eine Herstellung beispielsweise durch Schmieden oder Gießen in einer zweiteiligen Form nicht möglicht ist.These Balancing compounds are forged in the area of the crank webs and starting from the crankshaft longitudinal axis of the respective crank pin opposite arranged. In an arrangement as described, the crank pin at 120 °, 240 ° and 360 ° crank angle then also the balancing weights at 120 °, 240 ° and 360 ° crank angle. The resulting Crankshaft shape causes an undercut problem due to the a production for example by forging or casting in one two-piece shape not possible is.
Daher wurden derartige Kurbelwellen bisher zunächst „eben" geschmiedet oder gegossen und danach in den Wellenzapfen um z.B. 60° oder 120° verdreht. Dieser Verfahrensschritt bei der Herstellung von Kurbelwellen wird als „Twisten" bezeichnet und erfordert innerhalb der Fertigungslinie eine gesonderte Maschine mit entsprechenden Arbeitsgängen.Therefore So far, such crankshafts have been forged or cast "flat" and then in the shaft journal around e.g. 60 ° or Twisted 120 °. This process step in the production of crankshafts is referred to as "Twists" and requires within the production line a separate machine with corresponding Operations.
Aufgabe der Erfindung ist es, eine eingangs genannte Kurbelwelle bereitzustellen, welche einerseits beim Betrieb der Brennkraftmaschine einen Ausgleich der bewegten Massen ermöglicht und andererseits bereits in ihrer endgültigen Form beispielsweise durch Schmieden oder Gießen in einer zweiteiligen Form herstellbar ist. Insbesondere sollen Hinterschnitte vermieden werden und es soll vermieden werden, dass die Kurbelwelle in den Wellenzapfen nach dem Urformen zusätzliches umgeformt werden muss. Außerdem soll ein Verfahren zur Herstellung einer derartigen Kurbelwelle angegeben und eine Brennkraftmaschine mit solchen Kurbelwelle bereitgestellt werden.task The invention is to provide an initially mentioned crankshaft, which on the one hand during operation of the internal combustion engine compensation allows the moving masses and on the other hand already in its final form, for example by forging or casting can be produced in a two-part form. In particular, should Undercuts are avoided and it should be avoided that the crankshaft in the shaft journal after the prototyping additional must be transformed. Furthermore is a method for producing such a crankshaft specified and provided an internal combustion engine with such crankshaft become.
Die Lösung der Aufgabe erfolgt mit einer Kurbelwelle mit den Merkmalen des Anspruchs 1, wobei erfindungsgemäß die Ausgleichsmassen in einer durch die Kurbelwellenlängsachse gehenden gemeinsamen Ebene angeordnet sind. Ferner wird die Aufgabe mit einer Brennkraftmaschine mit einer derartigen Kurbelwelle nach Anspruch 6 und mit einem Verfahren gemäß Anspruch 7 zur Herstellung einer solchen Kurbelwelle gelöst, wobei die Kurbelwelle mit ihren Hubstellungen in einer teilbaren Schmiede oder Gießform hergestellt wird. Dadurch kann ein zusätzlicher Fertigungsschritt, in welchem die Kurbelwelle in den Wellenzapfen nach dem Urformen umgeformt wird, entfallen und die Herstellung schneller, günstiger und prozesssicherer bei hoher Qualität erfolgen. Insbesondere können auch Halteflächen, welche für einen Umformvorgang erforderlich wären, entfallen, sodass ein Gewichtsvorteil und damit eine Verringerung des Trägheitsmoments erreicht wird.The solution The task is done with a crankshaft with the features of Claim 1, wherein according to the invention the balancing weights in one through the crankshaft longitudinal axis walking common plane are arranged. Further, the task becomes with an internal combustion engine with such a crankshaft after Claim 6 and with a method according to claim 7 for the preparation solved such a crankshaft, wherein the crankshaft with their stroke positions in a divisible Forge or casting mold will be produced. This allows an additional manufacturing step, in which the crankshaft in the shaft journal after the prototyping is transformed, eliminated and the production faster, cheaper and process reliability with high quality. In particular, too Retaining surfaces, which for a forming process would be required, omitted, so that a Weight advantage and thus a reduction of the moment of inertia is reached.
Besonders vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.Especially advantageous embodiments and refinements of the invention are Subject of the dependent Claims.
Vorzugsweise ist an einem mittleren Wellenzapfen ein zumindest annähernd vollständiger Massenausgleich und an den anderen Wellenzapfen ein nur teilweiser Massenausgleich vorgesehen. Damit wird insgesamt ein weiterer Gewichtsvorteil verbunden mit einer weiteren Verringerung des Trägheitsmoments erreicht. Ein Ausgleich rotierender Massen erfolgt entsprechend der jeweiligen Wellenzapfenbelastung am mittleren Wellenzapfen in größerem Maße als an den weiteren den Wellenenden näheren Wellenzapfen. Gegebenenfalls kann an den äußersten Wellenzapfen, welche die geringste Belastung aufweisen, der Massenausgleich weiter reduziert sein. Bei den Ausgleichsmassen ist jeweils ein Kompromiss zwischen erforderlichem Massenausgleich und Gesamtgewicht respektive Trägheitsmoment der Kurbelwelle zu finden.Preferably is at a central shaft journal at least approximately complete mass balance and at the other shaft journal a partial mass balance intended. This is combined with a further weight advantage achieved with a further reduction of the moment of inertia. One Compensation of rotating masses takes place according to the respective Shaft journal load on center shaft journal to a greater extent than on the further wave ends closer to the shaft ends. Optionally, to the utmost Shafts which have the least load, the mass balance be further reduced. The balancing weights are each one Compromise between required mass balance and total weight respectively moment of inertia to find the crankshaft.
Zweckmäßigerweise sind in der Ausgleichsebene die dem mittleren Wellenzapfen zugeordneten Ausgleichsmassen den anderen Ausgleichsmassen gegenüberliegend angeordnet und die Ausgleichsmassen ausgehend vom mittleren Wellenzapfen in Richtung beider Kurbelwellenenden symmetrisch angeordnet.Conveniently, are in the compensation level associated with the central shaft journal Compensation masses the other balancing masses opposite arranged and the balancing weights starting from the middle shaft journal arranged symmetrically in the direction of both crankshaft ends.
Von besonderem Vorteil ist es, wenn die Kurbelwelle mit ihren Hubstellungen ohne spätere Verdrehung (Twisten) in einer teilbaren Schmiede oder Gießform herstellbar ist.From It is particularly advantageous if the crankshaft with its stroke positions without later Twist can be produced in a divisible forge or casting mold is.
Die Lösung der der Erfindung zugrunde liegenden Aufgabe erfolgt ferner mit einer Brennkraftmaschine umfassend eine erfindungsgemäße Kurbelwelle sowie mit einem Verfahren zur Herstellung einer solchen Kurbelwelle, bei dem die Kurbelwelle mit ihren Hubstellungen in einer teilbaren Schmiede oder Gießform hergestellt wird.The solution the object underlying the invention is further provided with an internal combustion engine comprising a crankshaft according to the invention and with a method for producing such a crankshaft, in which the crankshaft with their stroke positions in a divisible Forge or casting mold will be produced.
Nachfolgend ist ein besonders zu bevorzugendes Ausführungsbeispiel der Erfindung unter Bezugnahme auf Figuren näher erläutert, dabei zeigen schematisch und beispielhaftfollowing is a particularly preferable embodiment of the invention with reference to figures closer explains thereby show schematically and by way of example
Die
Kurbelwelle
Die
Kurbelwelle
Die
Kurbelwelle
Die
Ausgleichsmasse
Mit
den Ausgleichsmassen
Auch
die anderen Ausgleichsmassen
Aus
Gewichts- und Trägheitsgründen wird
an den anderen Wellenzapfen
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610043617 DE102006043617A1 (en) | 2006-09-16 | 2006-09-16 | Crankshaft for e.g. receiving and transmitting piston rod forces in six cylinder-row internal-combustion engine, has shaft pivots for supporting crankshaft, and balancing masses arranged in common plane running through longitudinal axis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610043617 DE102006043617A1 (en) | 2006-09-16 | 2006-09-16 | Crankshaft for e.g. receiving and transmitting piston rod forces in six cylinder-row internal-combustion engine, has shaft pivots for supporting crankshaft, and balancing masses arranged in common plane running through longitudinal axis |
Publications (1)
Publication Number | Publication Date |
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DE102006043617A1 true DE102006043617A1 (en) | 2008-03-27 |
Family
ID=39104846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610043617 Withdrawn DE102006043617A1 (en) | 2006-09-16 | 2006-09-16 | Crankshaft for e.g. receiving and transmitting piston rod forces in six cylinder-row internal-combustion engine, has shaft pivots for supporting crankshaft, and balancing masses arranged in common plane running through longitudinal axis |
Country Status (1)
Country | Link |
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DE (1) | DE102006043617A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2943392A1 (en) * | 2009-03-18 | 2010-09-24 | Renault Sas | Crankshaft for internal combustion engine, comprises a reference crank pin, a first crank pin and a second crank pin, axes parallel to an axis of the crankshaft, and a first arm extending radially between the first crank pin and a swivel |
CN103352912A (en) * | 2013-06-30 | 2013-10-16 | 贵州安大航空锻造有限责任公司 | V-shaped crankshaft forging of six-cylinder engine and forging method thereof |
DE102012103556A1 (en) | 2012-04-23 | 2013-10-24 | Thyssenkrupp Gerlach Gmbh | Method for manufacturing crankshaft of combustion engine, involves placing pivot portion of blacksmith tool on crank pin at preliminary position angle and moving from preliminary position to pivot position after forging operation |
US20160138645A1 (en) * | 2013-06-27 | 2016-05-19 | Daimler Ag | Crankshaft for a Reciprocating Piston Engine |
DE102015211297A1 (en) * | 2015-06-19 | 2016-12-22 | Bayerische Motoren Werke Aktiengesellschaft | crankshaft blank |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1303000A (en) * | 1919-05-06 | Hardt | ||
US1434215A (en) * | 1922-10-31 | larcher | ||
US1574219A (en) * | 1924-04-26 | 1926-02-23 | Clinton L Walker | Crank shaft |
US1661341A (en) * | 1928-03-06 | of wobcester | ||
US3538788A (en) * | 1969-03-13 | 1970-11-10 | Allis Chalmers Mfg Co | Six throw balanced crankshaft |
EP0372724A2 (en) * | 1988-12-09 | 1990-06-13 | SATURN CORPORATION (a Delaware corp.) | Engine and low-vibration crankshaft therefor |
FR2720809A1 (en) * | 1994-06-01 | 1995-12-08 | Renault | Method of mfg. crankshaft for multicylinder IC engine |
DE19916492A1 (en) * | 1999-04-13 | 2000-10-19 | Deutz Ag | Crankshaft for internal combustion engine has relief slot for shaft journal and crank pin introduced in crank web in region of fillet between one of journals and crank web |
FR2847314A1 (en) * | 2002-11-14 | 2004-05-21 | Renault Sa | Automobile engine crankshaft comprises crank arm delimited by lateral faces and axial cylindrical sections delimited by convex machined surface delimiting annular connection zone and comprising stress discharge groove |
FR2885187A1 (en) * | 2005-04-28 | 2006-11-03 | Renault Sas | Internal combustion engine`s crankshaft for motor vehicle, has annular connection zone with increased width and depth in zone, where constraints are high, to form discharge groove that is interfaced with cylindrical carrier |
-
2006
- 2006-09-16 DE DE200610043617 patent/DE102006043617A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1303000A (en) * | 1919-05-06 | Hardt | ||
US1434215A (en) * | 1922-10-31 | larcher | ||
US1661341A (en) * | 1928-03-06 | of wobcester | ||
US1574219A (en) * | 1924-04-26 | 1926-02-23 | Clinton L Walker | Crank shaft |
US3538788A (en) * | 1969-03-13 | 1970-11-10 | Allis Chalmers Mfg Co | Six throw balanced crankshaft |
EP0372724A2 (en) * | 1988-12-09 | 1990-06-13 | SATURN CORPORATION (a Delaware corp.) | Engine and low-vibration crankshaft therefor |
FR2720809A1 (en) * | 1994-06-01 | 1995-12-08 | Renault | Method of mfg. crankshaft for multicylinder IC engine |
DE19916492A1 (en) * | 1999-04-13 | 2000-10-19 | Deutz Ag | Crankshaft for internal combustion engine has relief slot for shaft journal and crank pin introduced in crank web in region of fillet between one of journals and crank web |
FR2847314A1 (en) * | 2002-11-14 | 2004-05-21 | Renault Sa | Automobile engine crankshaft comprises crank arm delimited by lateral faces and axial cylindrical sections delimited by convex machined surface delimiting annular connection zone and comprising stress discharge groove |
FR2885187A1 (en) * | 2005-04-28 | 2006-11-03 | Renault Sas | Internal combustion engine`s crankshaft for motor vehicle, has annular connection zone with increased width and depth in zone, where constraints are high, to form discharge groove that is interfaced with cylindrical carrier |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2943392A1 (en) * | 2009-03-18 | 2010-09-24 | Renault Sas | Crankshaft for internal combustion engine, comprises a reference crank pin, a first crank pin and a second crank pin, axes parallel to an axis of the crankshaft, and a first arm extending radially between the first crank pin and a swivel |
DE102012103556A1 (en) | 2012-04-23 | 2013-10-24 | Thyssenkrupp Gerlach Gmbh | Method for manufacturing crankshaft of combustion engine, involves placing pivot portion of blacksmith tool on crank pin at preliminary position angle and moving from preliminary position to pivot position after forging operation |
DE102012103556B4 (en) * | 2012-04-23 | 2016-10-13 | Thyssenkrupp Gerlach Gmbh | Method for producing a crankshaft and forging tool |
US20160138645A1 (en) * | 2013-06-27 | 2016-05-19 | Daimler Ag | Crankshaft for a Reciprocating Piston Engine |
US10415629B2 (en) * | 2013-06-27 | 2019-09-17 | Daimler Ag | Crankshaft for a reciprocating piston engine |
CN103352912A (en) * | 2013-06-30 | 2013-10-16 | 贵州安大航空锻造有限责任公司 | V-shaped crankshaft forging of six-cylinder engine and forging method thereof |
CN103352912B (en) * | 2013-06-30 | 2016-04-27 | 贵州安大航空锻造有限责任公司 | V-six engine crankshaft forging and forging method thereof |
DE102015211297A1 (en) * | 2015-06-19 | 2016-12-22 | Bayerische Motoren Werke Aktiengesellschaft | crankshaft blank |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130917 |