DE102010010725A1 - Hydraulic clamping element, has ventilation device limiting vent channel and with surface area deformed in pressure chamber such that surface area rests on other surface area and closes vent channel - Google Patents
Hydraulic clamping element, has ventilation device limiting vent channel and with surface area deformed in pressure chamber such that surface area rests on other surface area and closes vent channel Download PDFInfo
- Publication number
- DE102010010725A1 DE102010010725A1 DE201010010725 DE102010010725A DE102010010725A1 DE 102010010725 A1 DE102010010725 A1 DE 102010010725A1 DE 201010010725 DE201010010725 DE 201010010725 DE 102010010725 A DE102010010725 A DE 102010010725A DE 102010010725 A1 DE102010010725 A1 DE 102010010725A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure chamber
- surface area
- cage
- elastically deformable
- vent
- 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- Withdrawn
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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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0836—Means for varying tension of belts, ropes, or chains with vibration damping means of the fluid and restriction type, e.g. dashpot
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
- F16H2007/0817—Fluid pressure with means for venting unwanted gas
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
- F16H2007/0859—Check valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Die vorliegende Erfindung betrifft ein hydraulisches Spannelement für einen Zugmittel, mit einem Kolben, der gegen das Zugmittel angefedert in einem Gehäuse linear geführt ist und einen Druckraum begrenzt, in dem ein zum Druckraum hin öffnendes Rückschlagventil verläuft, wobei der Kolben mit einer Vorrichtung zur Entlüftung des Druckraumes versehen ist, wobei die Vorrichtung eine den Kolben durchsetzende Entlüftungsöffnung und zwei sich gegenüberliegende Oberflächen aufweist, von denen die eine Oberfläche dem Druckraum und die andere Oberfläche der Entlüftungsöffnung zugewandt ist und die einen zwischen dem Druckraum und der Entlüftungsöffnung verlaufenden Entlüftungskanal begrenzen.The present invention relates to a hydraulic tensioning element for a traction means, with a piston which is spring-biased in a housing guided against the traction means and limits a pressure chamber in which a pressure chamber opening toward the check valve extends, wherein the piston with a device for venting the Pressure chamber is provided, wherein the device comprises a piston passing through the vent opening and two opposing surfaces, of which one surface faces the pressure chamber and the other surface of the vent opening and define a running between the pressure chamber and the vent opening venting channel.
Hintergrund der ErfindungBackground of the invention
Ein hydraulisches Spannelement gemäß der vorgenannten Gattung ist aus den Druckschriften
Aufgabe der ErfindungObject of the invention
Der Erfindung liegt daher die Aufgabe zu Grunde, ein kostengünstiges hydraulisches Spannelement mit einer verschließbaren Entlüftungsvorrichtung herzustellen.The invention is therefore based on the object to produce a cost-effective hydraulic tensioning element with a closable venting device.
Zusammenfassung der ErfindungSummary of the invention
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die andere Oberfläche auf einem elastisch verformbaren Körper verläuft und bei druckbeaufschlagtem Druckraum derart verformt ist, dass die andere Oberfläche an der einen Oberfläche anliegt und den Entlüftungskanal verschließt. Der besondere Vorteil dabei ist, dass über die Entlüftungsvorrichtung nur Luft ausströmt. Die Entlüftungsvorrichtung ist derart ausgebildet, dass der Entlüftungskanal bei anliegendem hydrodynamischen Druck der Luft geöffnet bleibt, sich jedoch bei ausreichend hohem Öldruck verschließt.The object is achieved in that the other surface extends on an elastically deformable body and is deformed at druckbeaufschlagtem pressure chamber such that the other surface rests against the one surface and closes the vent passage. The particular advantage of this is that only air flows out via the ventilation device. The venting device is designed such that the venting channel remains open when the hydrodynamic pressure of the air is applied, but closes at a sufficiently high oil pressure.
In Ausgestaltung der Erfindung ist es vorgesehen, dass der elastisch verformbare Körper scheibenförmig ausgebildet ist. Des Weiteren weist der elastisch verformbare Körper umfangsseitige Aussparungen auf, welche einen Teil des Entlüftungskanals bilden. Die Aussparungen dienen dazu, dass die Luft aus dem Druckraum, über die Aussparungen in den Entlüftungskanal hinein strömen kann. Des Weiteren erhöht diese Formgebung die Flexibilität des elastisch verformbaren Körpers.In an embodiment of the invention, it is provided that the elastically deformable body is disc-shaped. Furthermore, the elastically deformable body has circumferential recesses which form part of the ventilation channel. The recesses serve to allow the air from the pressure chamber to flow through the recesses into the venting channel. Furthermore, this shaping increases the flexibility of the elastically deformable body.
In Konkretisierung der Erfindung ist es vorgeschlagen, dass der elastisch verformbare Körper innerhalb eines topfartigen Käfigs angeordnet ist, wobei die eine Oberfläche auf einer Innenseite des Bodens des topfartigen Käfigs verläuft. Der topfartige Käfig bildet zusammen mit dem elastisch verformbaren Körper eine vormontierbare Einheit. Damit der elastisch verformbare Körper während der Montage und auch im eingebauten Zustand nicht aus dem Käfig fallen kann, weist der Käfig an einer Wandinnenseite Vorsprünge auf, die den elastisch verformbaren Körper verliersicher innerhalb des topfartigen Käfigs halten.In concretization of the invention, it is proposed that the elastically deformable body is disposed within a pot-like cage, wherein the one surface extends on an inner side of the bottom of the pot-like cage. The pot-like cage together with the elastically deformable body forms a preassemblable unit. So that the elastically deformable body can not fall out of the cage during assembly and also when installed, the cage has on a wall inside projections that hold the elastically deformable body captive within the pot-like cage.
Im Weiteren weist der Boden des Käfigs eine Durchtrittsöffnung auf, welche mit der Entlüftungsöffnung kommuniziert. Bei ausreichend hohem Öldruck verbiegt sich der elastisch verformbaren Körper innerhalb des Käfigs in Richtung der Durchtrittsöffnung. Infolgedessen wird der Entlüftungskanal, welcher zwischen der einen Oberfläche des Bodens des topfartigen Gehäuses und der anderen Oberfläche des elastisch verformbaren Körpers verläuft, verschlossen.Furthermore, the bottom of the cage has a passage opening, which communicates with the vent opening. At sufficiently high oil pressure, the elastically deformable body bends within the cage in the direction of the passage opening. As a result, the vent passage extending between the one surface of the bottom of the cup-shaped housing and the other surface of the elastically deformable body is closed.
In bevorzugter Ausgestaltung der Erfindung kann es vorgeschlagen sein, dass der Käfig aus Kunststoff und der darin angeordnete, elastisch verformbare Körper aus Blech hergestellt sind. Die Kunststoff-Blech-Paarung vermindert die Geräuschentwicklung, wenn sich der elastisch verformbare Körper innerhalb des Käfigs verbiegt. Außerdem lässt sich der Käfig mit seiner erforderlichen Kontur mittels Kunststoffspritzgießen kostengünstig herstellen, ebenso wie der aus Blech gestanzte, elastisch verformbare Körper. Eine Alternative wäre es, sowohl den Käfig als auch den elastisch verformbaren Körper aus nur einem Material herzustellen wie z. B. Kunststoff oder Metall.In a preferred embodiment of the invention, it may be proposed that the cage made of plastic and arranged therein, elastically deformable body are made of sheet metal. The plastic-sheet mating reduces the noise when the elastically deformable body bends within the cage. In addition, the cage can be produced inexpensively with its required contour by means of plastic injection molding, as well as the punched out of sheet metal, elastically deformable body. An alternative would be to make both the cage and the elastically deformable body of only one material such. As plastic or metal.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ein Ausführungsbeispiel der Erfindung ist in den
Es zeigen:Show it:
Detaillierte Beschreibung der ZeichnungenDetailed description of the drawings
In
Bei einer Längenveränderung des Zugmittels
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Gehäusecasing
- 22
- Kolbenpiston
- 33
- Zugmitteltraction means
- 44
- Rückschlagventilcheck valve
- 55
- Druckraumpressure chamber
- 66
- Vorrichtungcontraption
- 77
- KäfigCage
- 88th
- elastisch verformbarer Körperelastically deformable body
- 99
- Bodenground
- 1010
- DurchtrittsöffnungThrough opening
- 1111
- Vorsprunghead Start
- 1212
- Entlüftungsöffnungvent
- 1313
- Entlüftungskanalvent channel
- A1, A2A1, A2
- Aussparungenrecesses
- B1B1
- eine Oberflächea surface
- B2B2
- andere Oberflächeother surface
- 100100
- Spannelementclamping element
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10327024 A1 [0002, 0002] DE 10327024 A1 [0002, 0002]
- DE 4431161 A1 [0002, 0002] DE 4431161 A1 [0002, 0002]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010010725 DE102010010725A1 (en) | 2010-03-09 | 2010-03-09 | Hydraulic clamping element, has ventilation device limiting vent channel and with surface area deformed in pressure chamber such that surface area rests on other surface area and closes vent channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010010725 DE102010010725A1 (en) | 2010-03-09 | 2010-03-09 | Hydraulic clamping element, has ventilation device limiting vent channel and with surface area deformed in pressure chamber such that surface area rests on other surface area and closes vent channel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010010725A1 true DE102010010725A1 (en) | 2011-09-15 |
Family
ID=44507735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010010725 Withdrawn DE102010010725A1 (en) | 2010-03-09 | 2010-03-09 | Hydraulic clamping element, has ventilation device limiting vent channel and with surface area deformed in pressure chamber such that surface area rests on other surface area and closes vent channel |
Country Status (1)
Country | Link |
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DE (1) | DE102010010725A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011086155A1 (en) | 2011-11-11 | 2013-05-16 | Schaeffler Technologies AG & Co. KG | Hydraulic clamping apparatus for traction drive of combustion engine, has valve seat that is provided at perforated plate such that bleed bore is closed by float portion resting on valve seat |
DE102016125187A1 (en) | 2016-04-26 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Hydraulic upside-down clamping device with locking device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431161A1 (en) | 1993-09-23 | 1995-03-30 | Borg Warner Automotive | Ventilated, hydraulic chain tensioner |
DE10327024A1 (en) | 2002-07-09 | 2004-01-22 | Joh. Winklhofer & Söhne GmbH und Co KG | Hydraulic tensioning device for especially timing chain of internal combustion engine has pressure chamber ventilation device with cap pressurized by spring unit onto base of recess in pressure chamber |
-
2010
- 2010-03-09 DE DE201010010725 patent/DE102010010725A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431161A1 (en) | 1993-09-23 | 1995-03-30 | Borg Warner Automotive | Ventilated, hydraulic chain tensioner |
DE10327024A1 (en) | 2002-07-09 | 2004-01-22 | Joh. Winklhofer & Söhne GmbH und Co KG | Hydraulic tensioning device for especially timing chain of internal combustion engine has pressure chamber ventilation device with cap pressurized by spring unit onto base of recess in pressure chamber |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011086155A1 (en) | 2011-11-11 | 2013-05-16 | Schaeffler Technologies AG & Co. KG | Hydraulic clamping apparatus for traction drive of combustion engine, has valve seat that is provided at perforated plate such that bleed bore is closed by float portion resting on valve seat |
DE102016125187A1 (en) | 2016-04-26 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Hydraulic upside-down clamping device with locking device |
WO2017186224A1 (en) | 2016-04-26 | 2017-11-02 | Schaeffler Technologies AG & Co. KG | Hydraulic upside-down tensioning device having engaging device |
DE102017108678A1 (en) | 2016-04-26 | 2017-11-09 | Schaeffler Technologies AG & Co. KG | Hydraulic upside-down clamping device with locking device |
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Legal Events
Date | Code | Title | Description |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140211 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140211 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150123 |
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R005 | Application deemed withdrawn due to failure to request examination |