WO2011060996A1 - Chain for a control drive or an auxiliary drive of a drive unit of a motor vehicle - Google Patents
Chain for a control drive or an auxiliary drive of a drive unit of a motor vehicle Download PDFInfo
- Publication number
- WO2011060996A1 WO2011060996A1 PCT/EP2010/064836 EP2010064836W WO2011060996A1 WO 2011060996 A1 WO2011060996 A1 WO 2011060996A1 EP 2010064836 W EP2010064836 W EP 2010064836W WO 2011060996 A1 WO2011060996 A1 WO 2011060996A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chain
- drive
- tabs
- motor vehicle
- control
- Prior art date
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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
Definitions
- the invention relates to a chain for a control drive or an aggregate drive of a drive device of a motor vehicle having the features of the preamble of claim 1.
- Such chains are used to transmit rotary motion from a driving shaft, such as a crankshaft, to a driven shaft, such as a camshaft.
- the chains are formed from a plurality of rotatably interconnected lug sets, which in turn are composed of a plurality of tabs, such as center straps, inner straps and / or cover straps.
- the tabs are provided with corresponding recesses are inserted through the chain pins or chain sleeves, so that the tabs are positively connected to each other.
- the middle tabs are preferably arranged rotationally fixed on the chain pin or the chain sleeves and serve to transmit power within the tab package, while the cover tabs are placed from the outside and hold the tab packages together.
- the inner plates are provided, which are rotatably supported on the chain pin or chain sleeves.
- the tabs can have different widths and lengths, wherein the geometry is of course also determined by the toothing of the meshing sprocket.
- the chain pins or chain sleeves are for the sustainability and the life of the chain of crucial importance, since they form the frictional connection of the tabs, so must have a corresponding strength, and at the same time be subject to increased wear by the constant rotational movement of the tabs arranged thereon.
- the object of the invention is to provide a chain which has a long service life and load capacity and is inexpensive to manufacture.
- the object of the invention is achieved by a chain for a control drive or an aggregate drive of a drive device of a motor vehicle with a plurality of tabs with corresponding recesses through which a chain pin is inserted, characterized in that the chain pin is formed of a through hardened bearing steel.
- Fig. Laschenpol a chain with a chain pin made of through hardened bearing steel
- a tab package 5 of a chain can be seen, which is composed of several tabs. It can be seen a center flap 2, on each of which an inner flap 3 borders on both sides. The entire plate pack 5 is covered on its outer sides via a respective cover flap 1 which hold the flap pack 5 together. The tabs each have corresponding recesses through which a chain pin 4 is inserted therethrough. Overall, the chain is of course composed of a number of such tab packages 5, which are each connected to one another via the inner tabs 3.
- the chain pin 4 is made of a through hardened bearing steel, e.g. of the grade 100 Cr6 or 52100.
- a bearing steel is advantageous in that it has a high degree of purity and thus is resistant to the train-pressure and alternating stresses acting in the chain and is also very resistant to wear.
- the use of through hardened bearing steel in particular offers the advantage that the desired surface properties of the chain pin 4 can be set cost-effectively in a through hardening process.
- Rolling bearing steels are characterized by a good hardness assumption, so that the required time for the through hardening process is relatively low. Another practical advantage results from the fact that rolling elements can be used, which are used in identical dimensions in bearings, thereby being produced in very large numbers and thus cost.
- Another advantage resulting from the invention is that the contour of the tabs are produced in a cost-effective normal stamping process can be, without causing disadvantages in terms of the life and the load capacity of the chain. Furthermore, various tolerance specifications of the chain can be lowered, whereby the manufacturing costs of the chain can be further reduced for the same service life and load capacity. For example, the tolerance specification can be lowered to the perpendicularity of the end face of the chain pin 4 to the axis of the chain pin 4 so far that this value is greater than 0.1 mm or the runout of the chain pin 4 exceeds the usual tolerance of 10%. In addition, it is conceivable that the chains are no longer stretched and thus reach with greater length tolerances than usual.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention relates to a chain for a control drive or an auxiliary drive of a drive unit of a motor vehicle comprising a plurality of tabs having corresponding recesses through which a chain pin (4) is inserted, wherein according to the invention the chain pin (4) is formed from a tempered rolling bearing steel.
Description
Bezeichnung der Erfindung Name of the invention
Kette für einen Steuerantrieb oder einen Aggregateantrieb einer Antriebseinrichtung eines Kraftfahrzeuges Chain for a control drive or an aggregate drive of a drive device of a motor vehicle
Beschreibung description
Gebiet der Erfindung Field of the invention
Die Erfindung betrifft eine Kette für einen Steuerantrieb oder einen Aggregateantrieb einer Antriebseinrichtung eines Kraftfahrzeuges mit den Merkmalen des Oberbegriffs von Anspruch 1 . Solche Ketten werden dazu verwendet, eine Drehbewegung von einer antreibenden Welle, wie z.B. einer Kurbelwelle, auf eine angetriebene Welle, wie z.B. eine Nockenwelle, zu übertragen. Die Ketten sind aus einer Vielzahl von drehbeweglich miteinander verbundenen Laschenpaketen gebildet, die wiederum aus mehreren Laschen, wie z.B. Mittellaschen, Innenlaschen und/oder Decklaschen, zusammengesetzt sind. Die Laschen sind mit korrespondierenden Ausnehmungen versehen, durch die Kettenbolzen oder Kettenhülsen hindurch gesteckt sind, so dass die Laschen kraftschlüssig miteinander verbunden sind. Die Mittellaschen sind vorzugsweise drehfest auf den Kettenbolzen oder den Kettenhülsen angeordnet und dienen der Kraftübertragung innerhalb des Laschenpaketes, während die Decklaschen von außen aufgesetzt sind und die Laschenpakete zusammenhalten. Zur Verbindung der Laschenpakete sind die Innenlaschen vorgesehen, die drehbeweglich auf den Kettenbolzen oder Kettenhülsen gehalten sind. Die Laschen können je nach ihren Aufgaben unterschiedliche Breiten und Längen aufweisen, wobei die Geometrie selbstver- ständlich auch durch die Verzahnung des eingreifenden Kettenrades mitbestimmt wird.
Die Kettenbolzen oder Kettenhülsen sind dabei für die Tragfähigkeit und die Lebensdauer der Kette von entscheidender Bedeutung, da sie die kraftschlüssige Verbindung der Laschen bilden, also eine entsprechende Festigkeit aufweisen müssen, und gleichzeitig durch die ständige Drehbewegung der darauf angeordneten Laschen einem erhöhten Verschleiß unterliegen. The invention relates to a chain for a control drive or an aggregate drive of a drive device of a motor vehicle having the features of the preamble of claim 1. Such chains are used to transmit rotary motion from a driving shaft, such as a crankshaft, to a driven shaft, such as a camshaft. The chains are formed from a plurality of rotatably interconnected lug sets, which in turn are composed of a plurality of tabs, such as center straps, inner straps and / or cover straps. The tabs are provided with corresponding recesses are inserted through the chain pins or chain sleeves, so that the tabs are positively connected to each other. The middle tabs are preferably arranged rotationally fixed on the chain pin or the chain sleeves and serve to transmit power within the tab package, while the cover tabs are placed from the outside and hold the tab packages together. To connect the tab packages, the inner plates are provided, which are rotatably supported on the chain pin or chain sleeves. Depending on their tasks, the tabs can have different widths and lengths, wherein the geometry is of course also determined by the toothing of the meshing sprocket. The chain pins or chain sleeves are for the sustainability and the life of the chain of crucial importance, since they form the frictional connection of the tabs, so must have a corresponding strength, and at the same time be subject to increased wear by the constant rotational movement of the tabs arranged thereon.
Aus der DE 197 54 489 A1 ist es bekannt, die Kettenbolzen oder die inneren Flächen der Laschen einer besonderen Oberflächenbehandlung zu unterziehen, so dass die Härte erhöht wird, und damit die Verschleißbeständigkeit ver- bessert wird. Durch die vorgeschlagene Oberflächenbehandlung werden jedoch die Herstellkosten und die Herstellzeit für die Kette nachteilig erhöht. From DE 197 54 489 A1 it is known to subject the chain pins or the inner surfaces of the tabs to a special surface treatment, so that the hardness is increased, and thus the wear resistance is improved. By the proposed surface treatment, however, the manufacturing costs and the production time for the chain are disadvantageously increased.
Aufgabe der Erfindung ist es, eine Kette zu schaffen, welche eine hohe Lebensdauer und Tragfähigkeit aufweist und kostengünstig herzustellen ist. The object of the invention is to provide a chain which has a long service life and load capacity and is inexpensive to manufacture.
Die Aufgabe der Erfindung wird durch eine Kette mit den Merkmalen des Anspruchs 1 gelöst. Weitere bevorzugte Ausführungsformen der Erfindung sind den Unteransprüchen, der Beschreibung und den zugehörigen Figuren zu entnehmen. The object of the invention is achieved by a chain having the features of claim 1. Further preferred embodiments of the invention can be found in the subclaims, the description and the associated figures.
Die Aufgabe der Erfindung wird durch eine Kette für einen Steuerantrieb oder einen Aggregateantrieb einer Antriebseinrichtung eines Kraftfahrzeuges mit mehreren Laschen mit korrespondierenden Ausnehmungen, durch die ein Kettenbolzen hindurch gesteckt ist, dadurch gelöst, dass der Kettenbolzen aus einem durchgehärteten Wälzlagerstahl gebildet ist. The object of the invention is achieved by a chain for a control drive or an aggregate drive of a drive device of a motor vehicle with a plurality of tabs with corresponding recesses through which a chain pin is inserted, characterized in that the chain pin is formed of a through hardened bearing steel.
Die Verwendung eines durchgehärteten Wälzlagerstahls für den Kettenbolzen ist insofern von Vorteil, da dadurch eine gesonderte Behandlung der Oberfläche entfällt, und der Kettenbolzen bereits durch die Verwendung des vorge- schlagenen durchgehärteten Werkstoffes die erforderlichen Materialeigenschaften aufweist.
Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles näher erläutert. Es zeigt: The use of a hardened bearing steel for the chain pin is advantageous in that it eliminates a separate treatment of the surface, and the chain pin already has the required material properties by the use of the proposed through-hardened material. The invention will be explained in more detail with reference to a preferred embodiment. It shows:
Fig. : Laschenpaket einer Kette mit einem Kettenbolzen aus durchgehärtetem Wälzlagerstahl Fig.: Laschenpaket a chain with a chain pin made of through hardened bearing steel
In der Fig.1 ist ein Laschenpaket 5 einer erfindungsgemäßen Kette zu erkennen, welches aus mehreren Laschen zusammengesetzt ist. Es ist eine Mittellasche 2 zu erkennen, an die beidseitig jeweils eine Innenlasche 3 grenzt. Das gesamte Laschenpaket 5 ist an seinen Außenseiten über jeweils eine Decklasche 1 abgedeckt, die das Laschenpaket 5 zusammenhalten. Die Laschen weisen jeweils korrespondierende Ausnehmungen auf, durch die ein Kettenbolzen 4 hindurch gesteckt ist. Insgesamt ist die Kette selbstverständlich aus einer Veilzahl solcher Laschenpakete 5 zusammengesetzt, die jeweils über die In- nenlaschen 3 miteinander verbunden sind. In Figure 1, a tab package 5 of a chain according to the invention can be seen, which is composed of several tabs. It can be seen a center flap 2, on each of which an inner flap 3 borders on both sides. The entire plate pack 5 is covered on its outer sides via a respective cover flap 1 which hold the flap pack 5 together. The tabs each have corresponding recesses through which a chain pin 4 is inserted therethrough. Overall, the chain is of course composed of a number of such tab packages 5, which are each connected to one another via the inner tabs 3.
Der Kettenbolzen 4 ist aus einem durchgehärteten Wälzlagerstahl, z.B. der Sorte 100 Cr6 oder 52100, hergestellt. Die Verwendung eines Wälzlagerstahls ist insofern von Vorteil, da er einen hohen Reinheitsgrad aufweist und dadurch beständig gegenüber den in der Kette wirkenden Zug-Druck- und Wechselbeanspruchungen ist und überdies sehr verschleißbeständig ist. Die Verwendung von durchgehärtetem Wälzlagerstahl bietet dabei insbesondere den Vorteil, dass die gewünschten Oberflächeneigenschaften des Kettenbolzens 4 kostengünstig in einem Durchhärteverfahren eingestellt werden können. Wälzlager- stähle zeichnen sich dabei durch eine gute Härteannahme aus, so dass die erforderliche Zeitdauer für das Durchhärteverfahren verhältnismäßig gering ist. Ein weiterer praktischer Vorteil ergibt sich daraus, dass Wälzkörper verwendet werden können, welche in identischen Abmaßen in Wälzlagern verwendet werden, in dadurch sehr großen Stückzahlen und damit kostengünstig hergestellt werden. The chain pin 4 is made of a through hardened bearing steel, e.g. of the grade 100 Cr6 or 52100. The use of a bearing steel is advantageous in that it has a high degree of purity and thus is resistant to the train-pressure and alternating stresses acting in the chain and is also very resistant to wear. The use of through hardened bearing steel in particular offers the advantage that the desired surface properties of the chain pin 4 can be set cost-effectively in a through hardening process. Rolling bearing steels are characterized by a good hardness assumption, so that the required time for the through hardening process is relatively low. Another practical advantage results from the fact that rolling elements can be used, which are used in identical dimensions in bearings, thereby being produced in very large numbers and thus cost.
Ein weiterer sich aus der Erfindung ergebender Vorteil ist, dass die Kontur der Laschen in einem kostengünstigen Normalstanzverfahren hergestellt werden
kann, ohne dass dadurch Nachteile hinsichtlich der Lebensdauer und der Tragfähigkeit der Kette entstehen. Ferner können verschiedene Toleranzvorgaben der Kette gesenkt werden, wodurch die Herstellkosten der Kette bei gleicher Lebensdauer und Tragfähigkeit weiter gesenkt werden können. Z.B. kann die Toleranzvorgabe an die Rechtwinkligkeit der Stirnseite des Kettenbolzens 4 zu der Achse des Kettenbolzens 4 so weit gesenkt werden, dass dieser Wert größer als 0,1 mm ist oder die Unrundheit des Kettenbolzens 4 die üblichen Toleranzwerte von 10 % überschreitet. Außerdem ist es denkbar, dass die Ketten nicht mehr gereckt werden und damit mit größeren Längentoleranzen als üblich zur Anwendung gelangen.
Another advantage resulting from the invention is that the contour of the tabs are produced in a cost-effective normal stamping process can be, without causing disadvantages in terms of the life and the load capacity of the chain. Furthermore, various tolerance specifications of the chain can be lowered, whereby the manufacturing costs of the chain can be further reduced for the same service life and load capacity. For example, the tolerance specification can be lowered to the perpendicularity of the end face of the chain pin 4 to the axis of the chain pin 4 so far that this value is greater than 0.1 mm or the runout of the chain pin 4 exceeds the usual tolerance of 10%. In addition, it is conceivable that the chains are no longer stretched and thus reach with greater length tolerances than usual.
Claims
1 . Kette für einen Steuerantrieb oder einen Aggregateantrieb einer Antriebseinrichtung eines Kraftfahrzeuges mit mehreren Laschen mit kor- respondierenden Ausnehmungen, durch die ein Kettenbolzen (4) hindurch gesteckt ist, dadurch gekennzeichnet, dass der Kettenbolzen (4) aus einem durchgehärteten Wälzlagerstahl gebildet ist. 1 . Chain for a control drive or an aggregate drive of a drive device of a motor vehicle with a plurality of tabs with corresponding recesses, through which a chain pin (4) is inserted, characterized in that the chain pin (4) is formed from a through hardened bearing steel.
2. Kette nach Anspruch 1 , dadurch gekennzeichnet, dass die Kontur der Laschen in einem Normalstanzverfahren hergestellt ist. 2. Chain according to claim 1, characterized in that the contour of the tabs is made in a normal stamping process.
3. Kette nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Kette ungereckt ist. 3. Chain according to one of the preceding claims, characterized in that the chain is unstretched.
4. Kette nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Wälzlagerstahl ein Stahl der Sorte 100 Cr6 oder 52100 ist. 4. Chain according to one of the preceding claims, characterized in that the bearing steel is a steel grade 100 Cr6 or 52100.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009053596.9 | 2009-11-17 | ||
| DE200910053596 DE102009053596A1 (en) | 2009-11-17 | 2009-11-17 | Chain for a control drive or an aggregate drive of a drive device of a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011060996A1 true WO2011060996A1 (en) | 2011-05-26 |
Family
ID=43439682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/064836 WO2011060996A1 (en) | 2009-11-17 | 2010-10-05 | Chain for a control drive or an auxiliary drive of a drive unit of a motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102009053596A1 (en) |
| WO (1) | WO2011060996A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143905A1 (en) * | 1983-09-29 | 1985-06-12 | Thyssen Edelstahlwerke AG | Steel for objects subject to high surface pressure, such as rolling mill bearings |
| DE3919199A1 (en) * | 1989-06-13 | 1990-12-20 | Skf Gmbh | METHOD FOR THE PRODUCTION OF ROTOR BEARING ELEMENTS |
| US5385124A (en) * | 1994-05-31 | 1995-01-31 | Eaton Corporation | Roller follower axle |
| DE19754489A1 (en) | 1996-12-12 | 1998-06-18 | Tsubakimoto Chain Co | Tooth chain |
| WO2008000210A1 (en) * | 2006-06-29 | 2008-01-03 | Schaeffler Kg | Method and tool for fastening the connecting plates of a chain, using connecting links |
| DE102006054406A1 (en) * | 2006-11-18 | 2008-05-21 | Schaeffler Kg | Hubübertragungsbauteil and method for its preparation |
| DE102006057246A1 (en) * | 2006-12-05 | 2008-06-12 | Schaeffler Kg | Mechanical tappet, in particular for reciprocal actuation of pump piston, has sleeve-shaped tappet housing which is configured as sheet metal moulding and has rotationally mounted drive roller |
-
2009
- 2009-11-17 DE DE200910053596 patent/DE102009053596A1/en not_active Withdrawn
-
2010
- 2010-10-05 WO PCT/EP2010/064836 patent/WO2011060996A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143905A1 (en) * | 1983-09-29 | 1985-06-12 | Thyssen Edelstahlwerke AG | Steel for objects subject to high surface pressure, such as rolling mill bearings |
| DE3919199A1 (en) * | 1989-06-13 | 1990-12-20 | Skf Gmbh | METHOD FOR THE PRODUCTION OF ROTOR BEARING ELEMENTS |
| US5385124A (en) * | 1994-05-31 | 1995-01-31 | Eaton Corporation | Roller follower axle |
| DE19754489A1 (en) | 1996-12-12 | 1998-06-18 | Tsubakimoto Chain Co | Tooth chain |
| WO2008000210A1 (en) * | 2006-06-29 | 2008-01-03 | Schaeffler Kg | Method and tool for fastening the connecting plates of a chain, using connecting links |
| DE102006054406A1 (en) * | 2006-11-18 | 2008-05-21 | Schaeffler Kg | Hubübertragungsbauteil and method for its preparation |
| DE102006057246A1 (en) * | 2006-12-05 | 2008-06-12 | Schaeffler Kg | Mechanical tappet, in particular for reciprocal actuation of pump piston, has sleeve-shaped tappet housing which is configured as sheet metal moulding and has rotationally mounted drive roller |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009053596A1 (en) | 2011-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2189549B1 (en) | Gear wheel and balancing shaft for a displacement engine | |
| DE102013110396A1 (en) | gearing | |
| EP1819939B1 (en) | Flat link articulated chain particularly for a vehicle drive | |
| EP1580459B1 (en) | Planetary gear | |
| WO2007039384A1 (en) | Roller tappet | |
| DE202014100830U1 (en) | Wheel with flexible teeth | |
| DE102016111290A1 (en) | Device for releasing play of meshing gears of a gear drive | |
| WO2017029019A1 (en) | Sprocket | |
| WO2007076777A2 (en) | Chain | |
| DE102008011914B4 (en) | biasing unit | |
| WO2016180413A1 (en) | Belt means and kit for constructing a belt means | |
| EP1963708A1 (en) | Plate link chain | |
| WO2011060996A1 (en) | Chain for a control drive or an auxiliary drive of a drive unit of a motor vehicle | |
| DE102015204166A1 (en) | gearing | |
| DE102016203003A1 (en) | planetary gear | |
| DE102016002683A1 (en) | Timing chain drive with cranked chain links | |
| DE102010016581A1 (en) | transmission | |
| WO2006058528A1 (en) | Flat link articulated chain particularly for a vehicle drive | |
| DE102009013993A1 (en) | Output arrangement for use in crank-continuously variable transmission of e.g. diesel engine, has connection unit connected with free-wheel unit over eccentric unit and needle bearing that is provided around eccentric unit | |
| AT500716B1 (en) | METHOD FOR DESIGNING A CONNECTING ELEMENT AND CONNECTING ELEMENT | |
| DE102010047525A1 (en) | Elongated leaf spring for friction clutch, comprises two ends, where boost is provided in central region between two ends for increasing buckling strength | |
| DE202017102048U1 (en) | gear unit | |
| DE102017202419A1 (en) | gear unit | |
| DE102009053597A1 (en) | Chain for a control drive or an aggregate drive of a drive device of a motor vehicle | |
| DE102016125548B3 (en) | Articulated chain and method for the continuous assembly of such |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10771050 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10771050 Country of ref document: EP Kind code of ref document: A1 |