DE2704862A1 - Hydraulic-mechanical chain tensioner - has piston spring pressed against cushion in turn pressing piston and plate against cylinder tube cover - Google Patents
Hydraulic-mechanical chain tensioner - has piston spring pressed against cushion in turn pressing piston and plate against cylinder tube coverInfo
- Publication number
- DE2704862A1 DE2704862A1 DE19772704862 DE2704862A DE2704862A1 DE 2704862 A1 DE2704862 A1 DE 2704862A1 DE 19772704862 DE19772704862 DE 19772704862 DE 2704862 A DE2704862 A DE 2704862A DE 2704862 A1 DE2704862 A1 DE 2704862A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- hydraulic
- cylinder tube
- mechanical chain
- tensioning device
- 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.)
- Pending
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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
-
- 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
- F16H2007/0804—Leaf springs
-
- 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
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0891—Linear path
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
Betr.: Patentanmeldungmit Gebrauchsmuster-HilfsanmeldungRe: patent application with utility model auxiliary application
für Hydraulisch-Mechanische-Kettenspanneinrichtung Die bischer bekannten Kettenspanneinrichtungen sind bei Spanndrücken bis zu 20 Mp Vorspannung und 40 Mp Endspannung durch Spiralfederpakete und für Spanndrücke bis zu 40 Mp Vorspannung und 80 Mp Endspanung durch Doppelfederpakete mit Spiralfedern üblich. Um noch höhere SpanndrückeX die für Großmaschinen erforderlich sind. zu erreichen. bedient man sich entweder einer reinen hydraulischen Kettensnanneinrichtung, die aber sehr kostnielig und anfällig ist. oder der Stickstoffspanner. Die ,Stickstoffsnanner sind zwar billiger als ein reiner hydraulischer Kettenspanner. aber dafür noch anfälliger. Die besondere Anfälligkeit der Sti.ckstoffspanner liest in 3 Punkten: 1. Dichtungsprobleme des Stickstoffteiles. for hydraulic-mechanical chain tensioning device The well-known ones Chain tensioning devices are pretensioned at tension pressures of up to 20 Mp and 40 Mp Final tension through spiral spring packages and for tension pressures up to 40 Mp pre-tension and 80 Mp final stress due to double spring packages with spiral springs is common. To even higher Clamping pressuresX required for large machines. to reach. one serves Either a purely hydraulic chain sniffing device, but it is very costly and is vulnerable. or the nitrogen tensioner. The nitrogen scanners are cheaper as a pure hydraulic chain tensioner. but even more susceptible to it. The special one Susceptibility of the plastic tensioner reads in 3 points: 1. Sealing problems of the Nitrogen part.
?. Die enorm hohe Druckveränderung des Stickstoffs bei Temperaturunterschi eden.?. The enormously high pressure change of the nitrogen with temperature differences Eden.
3. Die schnelle Erwärmung des Stickstoffs während der Arbeit bei hohen Drücken und der damit verbundenen Druckveränderung.3. The rapid heating of nitrogen while working at high Pressing and the associated pressure change.
Der Erfindung der Hydraulisch-Mechanischen-Kettenspanneinrichtung liegt die Aufgabe zugrunde eine Kettenspanneinrichtung zii schaffen. die für schwerste Beanspruchungen und hohe Spanndrücke bei kleinstem Platzbedarf robust genug ist und praktisch keine Wartung benötigt.The invention of the hydraulic-mechanical chain tensioning device the task is to create a chain tensioning device zii. for the heaviest Stresses and high clamping pressures with the smallest space requirement is robust enough and practically no maintenance required.
Dieser Erfindung liegt die Erkenntnis zugrunde. hohe mechanische Kräfte von z.B. mehrach hintereinander gestapelten Tellerfedern mit kleinen Federwegen über ein hydraulisches Differenzkolbensystem in lange Federwege umzuwandeln.This invention is based on the knowledge. high mechanical Powers of e.g. multiple disc springs stacked one behind the other with small spring deflections to be converted into long spring travel via a hydraulic differential piston system.
Die in der Schnittzeichnung dargestellten 3 Tellerfedergruppen.The 3 groups of disc springs shown in the sectional drawing.
Fig. 1 mit je 4 Tellerfedern baben z.B. einen Gesamtfederweg von 10 mm bei einem Vorspanndruck von 40 Mp und einem Enddruck nach Verfahren des Federweges von 10 mm = 80 Mp.Fig. 1 with 4 disc springs each have e.g. a total spring travel of 10 mm at a preload pressure of 40 Mp and a final pressure based on the spring travel method of 10 mm = 80 Mp.
Die 3 Telerfedergruppen. Fig. 1. Werden durch Verschrauben des Deckels Fig. 2 mit dem Zylinderrohr Fig. 3 auf die z.B. 40 Mp vorgespannt. Die Tellerfedern drücken gegen den Kolber Fig. 4 der in dem Zylinderrohr. Fig. 3. gleitet.The 3 Teler spring groups. Fig. 1. Are by screwing the cover Fig. 2 with the cylinder tube Fig. 3 preloaded to 40 Mp, for example. The disc springs press against the piston Fig. 4 in the cylinder tube. Fig. 3. slides.
Der Kolben Fig. 4. hat eine um 10 x größere Druckfläche, als der Kolben Fig. 5. Welcher in dem Deckel. Fig. 6. der vor das Zylinderrohr. Fig. 3. geschraubt ist, gleitet.The piston Fig. 4 has a pressure area 10 times larger than the piston Fig. 5. Which in the lid. Fig. 6. the front of the cylinder tube. Fig. 3 screwed is, slides.
Das in dem Zwischenraum des Kolbens. Fig. 4, des Deckels, Fig. 6 und des Kolbens. Fig. 5. vorhandene Öl. Fett. oder ähnliches material welches auch bei hohen Drücken sein Volumen nicht verändert hat die Aufgabe, beim einschieben des Kolbens.That in the space of the piston. Fig. 4, the lid, Fig. 6 and of the piston. Fig. 5. Existing oil. Fat. or similar material which is synonymous with high pressure does not change its volume Piston.
Fig. 5 den Kolben. Fig. 4. im Verhältnis der Druckflächendifferenzen z.B. 1 : 10 zwischen Kolben. Fig. 4 und Fig. 5. gegen die Tellerfedern zu drücken.Fig. 5 shows the piston. Fig. 4. in the ratio of the pressure area differences e.g. 1:10 between pistons. Fig. 4 and Fig. 5 to press against the disc springs.
Im gleichen Verhältnis der Druckfläche der beiden Kolben, Fig.In the same ratio of the pressure area of the two pistons, Fig.
4 und Fig. 5 verhält sich auch der zu verfahrende Federweg.4 and 5, the spring travel to be moved also behaves.
Tr diesem Beispiel 1 : 10 = Federweg des großen Kolbens z.B.Tr in this example 1: 10 = spring deflection of the large piston e.g.
10 mm der st der Federweg des kleinen Kolbens. Fig. 5, = 100 mm.10 mm the st the travel of the small piston. Fig. 5, = 100 mm.
Die hydraulische Zwischenstufe des Kettenspanners hat noch den großen Vorteil daß das schnelle Entspannen der mechanischen Feder durch die hydraulische Zwischenstufe je nach Wunsch gedämpft werden karn. Durch die Kolbenplatte, Fig. 7, des Kolbens Fig. 5 welche beim Entspannen der Federpakete. Fig. 1.The hydraulic intermediate stage of the chain tensioner still has the big one Advantage that the hydraulic spring releases the mechanical spring quickly Intermediate level can be steamed karn as required. Through the piston plate, Fig. 7, the piston Fig. 5 which when relaxing the spring assemblies. Fig. 1.
ir die Eindrehung. Fig. 8. des Deckels. Fig. 6. eintaucht.ir the turning. Fig. 8. of the lid. Fig. 6 is immersed.
wird das bier befndliche Öl oder Fett durch den zwischen der Kolbenplatte, Fig. 7, und der Eindrehung wig. 8, befindlichen Luftspalt gequetscht, wodurch die Aufprallenergie je nach Größe des Luftspalts gedämpft wird.is the oil or fat in the beer through the between the piston plate, Fig. 7, and the turning tig. 8, located air gap squeezed, whereby the Impact energy is damped depending on the size of the air gap.
Durch den Zylinder. Fig. 9 ist die gesamte Spanneinheit in der Länge verstellbar.Through the cylinder. Fig. 9 is the entire tensioning unit in length adjustable.
Die Seitenteile. Fig. 10 sind als Führung der Gesamteinheit vorgesehen.The side panels. Fig. 10 are provided as a guide for the entire unit.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772704862 DE2704862A1 (en) | 1977-02-05 | 1977-02-05 | Hydraulic-mechanical chain tensioner - has piston spring pressed against cushion in turn pressing piston and plate against cylinder tube cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772704862 DE2704862A1 (en) | 1977-02-05 | 1977-02-05 | Hydraulic-mechanical chain tensioner - has piston spring pressed against cushion in turn pressing piston and plate against cylinder tube cover |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2704862A1 true DE2704862A1 (en) | 1978-08-10 |
Family
ID=6000460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772704862 Pending DE2704862A1 (en) | 1977-02-05 | 1977-02-05 | Hydraulic-mechanical chain tensioner - has piston spring pressed against cushion in turn pressing piston and plate against cylinder tube cover |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2704862A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0342432A1 (en) * | 1988-05-18 | 1989-11-23 | INA Wälzlager Schaeffler KG | Tensioning device for belts |
CN106352011A (en) * | 2016-11-14 | 2017-01-25 | 重庆市永恒玻陶工艺有限公司 | Easy-to-dismount hydraulic buffer device |
-
1977
- 1977-02-05 DE DE19772704862 patent/DE2704862A1/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0342432A1 (en) * | 1988-05-18 | 1989-11-23 | INA Wälzlager Schaeffler KG | Tensioning device for belts |
CN106352011A (en) * | 2016-11-14 | 2017-01-25 | 重庆市永恒玻陶工艺有限公司 | Easy-to-dismount hydraulic buffer device |
CN106352011B (en) * | 2016-11-14 | 2018-07-20 | 盐城雄鹰精密机械有限公司 | Quick detachable hydraulic damping device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |