DE2946604A1 - Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps - Google Patents

Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps

Info

Publication number
DE2946604A1
DE2946604A1 DE19792946604 DE2946604A DE2946604A1 DE 2946604 A1 DE2946604 A1 DE 2946604A1 DE 19792946604 DE19792946604 DE 19792946604 DE 2946604 A DE2946604 A DE 2946604A DE 2946604 A1 DE2946604 A1 DE 2946604A1
Authority
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Germany
Prior art keywords
rings
flanks
joint
cover
universal joint
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Withdrawn
Application number
DE19792946604
Other languages
German (de)
Inventor
Leopold F. 7000 Stuttgart Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19792946604 priority Critical patent/DE2946604A1/en
Publication of DE2946604A1 publication Critical patent/DE2946604A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/22Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/226Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part
    • F16D3/227Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic

Abstract

The protective boot is for a universal joint, particularly one driving vehicle wheels. It is made of rubber or similar material in bellows form with several radial peripheral folds. The outer ends of the flanks (9) of the folds (10) merge into rings (22-25) wide enough to cover the gaps (7) between the adjacent flanks from outside. The rings can be of cone section, their wall thickness being greater (4) than that (6) of the fold flanks, while their cone angles increase (17) towards the universal joint (18).

Description

Gelenkschutzhülle für Drehgelenkkupplungen Joint protection cover for swivel joint couplings

Die Erfindung betrifft eine Gelenkschutzhülle für Drehgelenkkupplungen, insbesondere zum Antrieb der Räder eines Kraftfahrzeuges, welche aus einem elastisch verformbaren Werkstoff, beispielsweise Gummi, besteht und als Faltenbalg mit radial umlaufenden Falten ausgebildet ist.The invention relates to a joint protection cover for swivel joint couplings, in particular for driving the wheels of a motor vehicle, which consists of an elastic deformable material, such as rubber, and as a bellows with radially circumferential folds is formed.

Der Erfindung liegt die Aufgabe zugrunde, eine Gelenkschutzhülle der vorgenannten Art so weiterzuentwickeln und zu verbessern, dass ohne einen Mehraufwand an elastisch verformbarem Werkstoff eine wesentliche Verlängerung der Lebensdauer im allgemeinen und eine wesentliche Erhöhung der Steinschlagsicherheit im besonderen zusammen mit einer wesentlichen Verringerung des Volumens des zur Schmierung der Drehgelenkkupplung erforderlichen Schmiermittels erreicht werden.The invention is based on the object of providing a protective joint cover The aforementioned type to be further developed and improved without any additional effort on elastically deformable material a significant extension of the service life in general and a significant increase in stone chip security in particular along with a substantial reduction in the volume of the lubricant Swivel coupling required lubricant can be achieved.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die äusseren Enden der Flanken der radial umlaufenden Falten der als Faltenbalg ausgebildeten Gelenkschutzhülle in Ringe hineinwachsen, die so breit sind, dass sie die Zwischenräume zwischen den Flanken nach aussen hin abdecken. Diese Ringe sind vorzugsweise kegelförmig ausgebildet und zwar so, dass ihre Wanddicke grösser ist als die Wanddicke der Flanken der radial umlaufenden Falten, wobei der Kegelwinkel der kegelförmig ausgebildeten Ringe zur Drehgelenkkupplung hin ansteigt.This object is achieved according to the invention in that the outer Ends of the flanks of the radially circumferential folds of the bellows Joint protective cover grow into rings that are wide enough to cover the spaces between them cover between the flanks towards the outside. These rings are preferably conical designed in such a way that their wall thickness is greater than the wall thickness of the flanks of the radially circumferential folds, the cone angle of the cone-shaped Rings to the swivel coupling increases.

Diese erfindungsgemässe Gestaltung bringt nicht nur technische sondern auch wirtschaftliche Vorteile mit sich, weil die wesentliche Verlängerung der Lebensdauer im allgemeinen und die die wesentliche Erhöhung der Steinschlagsicherheit im besonderen ohne einen Mehraufwand an elastisch verformbarem Werkstoff und ohne eine Erhöhung der Herstellungskosten für die erfindungsgemässe Gelenkschutzhülle erreicht werden, und weil darüber hinaus durch die wesentliche Verringerung des Volumens des zur Schmierung der Drehgelenkkupplung erforderlichen und relativ teuren Schmiermittels noch Preiseinsparungen erzielt werden.This inventive design brings not only technical but also economic advantages, because the significant extension of the service life in general and the the substantial increase in stone chip security in particular without an additional expenditure of elastically deformable material and without an increase in the production costs for the protective joint cover according to the invention can be achieved, and in addition, through the substantial reduction in the Volume of the required and relatively expensive to lubricate the swivel coupling Lubricant still price savings can be achieved.

Die wesentliche Verlängerung der Lebensdauer wird durch die besondere Gestaltung der Falten erreicht, deren Flanken infolge des Hineinwachsens ihrer äusseren Enden in breite Ringe in einer für eine niedrige Werkstoffbeanspruchung idealen Weise geformt und infolge ihrer vor mechanischen Beschädigungen geschützten Lage ausserdem noch sehr dünn und dementsprechend schmiegsam gemacht werden können. Die breiten Ringe, in die die äusseren Enden der Flanken der radial umlaufenden Falten hineinwachsen, leisten aber auch noch einen anderen für die Verlängerung der Lebensdauer wichtigen Beitrag, weil sie die Zwischenräume zwischen den Flanken nach aussen hin abdecken und sie vor einer Verschmutzung und deren Folgeschäden schützen.The essential extension of the service life is due to the special Formation of the folds achieved, their flanks as a result of the growing in their outer Ends in wide rings in an ideal for low material stress Wise shaped and protected from mechanical damage due to their location in addition, they can still be made very thin and accordingly pliable. the wide rings in which the outer ends of the flanks of the radially circumferential folds grow into it, but also do another one for the extension of the service life important contribution because they open the spaces between the flanks to the outside cover and protect them from contamination and its consequential damage.

Die wesentliche Erhöhung der Steinschlagsicherheit wird ebenfalls durch die breiten äusseren Ringe mit ihrer grossen Wanddicke erreicht, die die Zwischenräume zwischen den Flanken nach aussen hin abdecken. Diese grosse Wanddicke verursacht aber keinen Mehraufwand an elastisch verformbarem Werkstoff, weil die Wanddicke der Flanken der radial umlaufenden Falten sehr dünn gehalten werden kann.The substantial increase in rockfall security is also reached by the wide outer rings with their great wall thickness, which the gaps cover between the flanks towards the outside. This great wall thickness causes but no additional expenditure on elastically deformable material, because the wall thickness the flanks of the radially circumferential folds can be kept very thin.

Die grosse Wanddicke der breiten äusseren Ringe ist auch ein wirkungsvoller Schutz gegen Beschädigungen, die in manchen Gegenden noch öfter vorkommen als Steinschlagschäden und die von Nagetieren stammen, die eine Vorliebe für warme und nach Fett oder Oel riechende Gummiteile von abgestellten Kraftfahrzeugen haben. Über diese erst in neuerer Zeit erkannten und häufig häufig zum totalen Ausfall eines Kraftfahrzeuges führenden Beschädigungen wird in einem am 15. August 1979 in der STUTTGARTER ZEITUNG erschienenen Artikel ausführlich berichtet.The great wall thickness of the wide outer rings is also an effective one Protection against damage, which in some areas occurs even more often than rockfall damage and those derived from rodents, which have a preference for warm and for fat or oil have smelly rubber parts from parked motor vehicles. About this only in recognized recently and frequently often to the total failure of one Motor vehicle damage is reported in a on August 15, 1979 in the STUTTGARTER ZEITUNG reports in detail.

Die wesentliche Einsparung an dem hochwertigen und relativ teuren Schmiermittel zur Schmierung der Drehgelenkkupplung wird durch die besondere Gestaltung der Falten der Gelenkschutzhülle erreicht, durch die ein besonders kleiner Schmiermittel- Totraum zustandekommt. Dieser kleine Schmiermittel-Totraum ergibt zusammen mit der grossen Wanddicke der breiten äusseren Ringe auch den Vorteil einer bis jetzt nicht erreichten Sicherheit gegen das Aufblähen der Gelenkschutzhülle bei hohen Drehzahlen und hohen Temperaturen.The main saving on the high quality and relatively expensive Lubricant for the lubrication of the swivel coupling is due to the special design of the folds of the joint protection cover, through which a particularly small lubricant Dead space is created. This small lubricant dead space, along with the large wall thickness of the wide outer rings also had the advantage of not until now achieved safety against inflation of the protective joint cover at high speeds and high temperatures.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt.In the drawing is an embodiment of the subject matter of Invention shown.

Die Gelenkschutzhülle 3 ist mit ihrem einen Ende 2 mittels des Spannbandes 21 mit der Gelenkwelle 1 und mit ihrem anderen Ende 11 mittels des Spannringes 14 mit dem äusseren Kupplungsteil 15 der Drehgelenkkupplung 18 luft- und flüssigkeitsdicht verbunden. Sie ist als Faltenbalg mit radial umlaufenden Falten 1o ausgebildet und aus einem elastisch verformbaren Werkstoff,beispielsweise Gummi, gefertigt. Die äusseren Enden der Flanken 9 der radial umlaufenden Falten 10 wachsen in Ringe 22, 23, 24, 25 hinein, die so breit sind, dass sie die Zwischenräume 7 zwischen den Flanken 9 nach aussen hin abdecken.The protective joint cover 3 is at one end 2 by means of the tightening strap 21 with the cardan shaft 1 and with its other end 11 by means of the clamping ring 14 with the outer coupling part 15 of the swivel joint coupling 18, airtight and liquid-tight tied together. It is designed as a bellows with radially circumferential folds 1o and made of an elastically deformable material such as rubber. the outer ends of the flanks 9 of the radially circumferential folds 10 grow into rings 22, 23, 24, 25, which are so wide that they form the spaces 7 between the Cover flanks 9 towards the outside.

Die Ringe 22, 23, 24, 25 sind kegelförmig ausgebildet und zwar so, dass ihr Kegelwinkel 17 zur Drehgelenkkupplung hin ansteigt. Die Wanddicke 4 der kegelförmig ausgebildeten Ringe ist grösser als die Wanddicke 6 der Flanken 9 der radial umlaufenden Falten 10. Die Drehgelenkkupplung 18 ist als Verschiebegelenk ausgebildet, bei der das Drehmoment über Kugeln 16 vom äusseren Kupplungsteil 15 auf die Gelenkwelle 1 übertragen wird. 13 ist der Beugungswinkel und 19 ist der Verschiebeweg der Drehgelenkkupplung, die mit einem hochwertigen fettartigen Schmiermittel geschmiert wird. Da der Schmiermittel- Schmiermittel- Totraum 8 der Gelenkschutzhülle viel kleiner ist als bei den heute üblichen Ausführungsformen kommt man mit einer wesentlich kleineren Menge des relativ teuren Schmiermittels aus, sodass Preiseinsparungen erzielt werden.The rings 22, 23, 24, 25 are conical in shape in such a way that that their cone angle 17 increases towards the swivel coupling. The wall thickness 4 of the conical rings is greater than the wall thickness 6 of the flanks 9 of the radially circumferential folds 10. The swivel joint coupling 18 is a sliding joint designed, in which the torque via balls 16 from the outer coupling part 15 is transferred to the cardan shaft 1. 13 is the diffraction angle and 19 is the Displacement of the swivel joint, which is made with a high quality grease-like lubricant is lubricated. Since the lubricant Lubricant dead space 8 the joint protection cover is much smaller than in the current embodiments comes with a much smaller amount of the relatively expensive lubricant so that price savings are achieved.

Der Pfeil 20 zeigt die Flugrichtung der Schmutzpartikel, die beim Befahren verschmutzter Strassen vom gegenüberliegenden Rad der angetriebenen Achse gegen die Gelenkschutzhülle 3 geschleudert werden, und man erkennt, dass die kegelförmig ausgebildeten Ringe einen wirkungsvollen Schutz bieten können. Der Spalt 5 ist gross genug, um den Selbstreinigungseffekt nicht zu behindern, der infolge der kreisrunden Form der Flanken 9 der radial umlaufenden Falten 10 besonders ausgeprägt ist. Schmutzteile, die trotz des Abdeckens der Zwischenräume 7 eindringen, werden durch die im Fahrbetrieb ständig auftretenden Rollbewegungen der Flanken gelöst und durch die Fliehkraft ausgeschleudert. 12 sind die Schrauben zur Befestigung des Spannringes 14 am äusseren Kupplungsteil 15 der Drehgelenkkupplung.The arrow 20 shows the direction of flight of the dirt particles Driving on dirty roads from the opposite wheel of the driven axle be thrown against the joint protective cover 3, and it can be seen that the cone-shaped trained rings can offer effective protection. The gap 5 is large enough not to hinder the self-cleaning effect, which is due to the circular The shape of the flanks 9 of the radially circumferential folds 10 is particularly pronounced. Dirt parts, which penetrate in spite of the covering of the intermediate spaces 7, are caused by the during driving constantly occurring rolling movements of the flanks and solved by the centrifugal force ejected. 12 are the screws for fastening the clamping ring 14 on the outside Coupling part 15 of the swivel coupling.

Patentansprüche: Leerseite Patent claims: Blank page

Claims (3)

Gelenkschutzhülle für Drehgelenkkupplungen Patentansprüche Gelenkschutzhülle für Drehgelenkkupplungen, insbesondere zum Antrieb der Räder eines Kraftfahrzeuges, welche aus einem elastisch verformbaren Werkstoff, beispielsweise Gummi, besteht und als Faltenbalg mit radial umlaufenden Falten ausgebildet ist, d a d u r c h g e k e n n -z e i c h n e t, dass die äusseren Enden der Flanken (9) der radial umlaufenden Falten (10) der als Faltenbalg ausgebildeten Gelenkschutzhülle (3) in Ringe (22, 23, 24, 25) hineinwachsen, die so breit sind, dass sie die Zwischenräume (7) zwischen den Flanken (9) nach aussen hin abdecken. Joint protection cover for swivel couplings Patent claims Joint protection cover for swivel joints, in particular for driving the wheels of a motor vehicle, which consists of an elastically deformable material such as rubber and is designed as a bellows with radially circumferential folds, d a d u r c h g e k e n n -z e i c h n e t that the outer ends of the flanks (9) of the radial circumferential folds (10) of the protective joint cover (3) designed as a bellows in Grow into rings (22, 23, 24, 25) that are so wide that they fill the spaces Cover (7) between the flanks (9) towards the outside. 2. Gelenkschutzhülle für Drehgelenkkupplungen nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass die Ringe (22, 23, 24, 25) kegelförmig ausgebildet sind, und dass ihre Wanddicke (4) grösser ist als die Wanddicke (6) der Flanken (9) der radial umlaufenden Falten (10).2. joint protection cover for swivel joint couplings according to claim 1, d a It is indicated that the rings (22, 23, 24, 25) are conical are formed, and that their wall thickness (4) is greater than the wall thickness (6) the flanks (9) of the radially circumferential folds (10). 3. Gelenkschutzhülle für Drehgelenkkupplungen nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, dass der Kegelwinkel (17) der kegelförmig ausgebildeten Ringe (22, 23, 24, 25) zur Drehgelenkkupplung (18) hin ansteigt.3. joint protection cover for swivel joint couplings according to claim 2, d a D u r c h e k e n n n n z e i c h n e t that the cone angle (17) is conical formed rings (22, 23, 24, 25) to the swivel joint coupling (18) increases.
DE19792946604 1979-11-19 1979-11-19 Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps Withdrawn DE2946604A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792946604 DE2946604A1 (en) 1979-11-19 1979-11-19 Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792946604 DE2946604A1 (en) 1979-11-19 1979-11-19 Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps

Publications (1)

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DE2946604A1 true DE2946604A1 (en) 1981-05-27

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DE19792946604 Withdrawn DE2946604A1 (en) 1979-11-19 1979-11-19 Universal joint protective boot - has bellows fold flanks merging into rings bridging intervening gaps

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309420A1 (en) * 1982-03-19 1983-09-29 Aisin Seiki K.K., Kariya, Aichi SEALING CUFF MADE OF ELASTOMERIC MATERIAL
DE3309644A1 (en) * 1982-03-19 1983-09-29 Aisin Seiki K.K., Kariya, Aichi SEALING CUFF
EP0241741A2 (en) * 1986-04-17 1987-10-21 TRW Ehrenreich GmbH & Co. KG Sealing bellow for ball-joints
EP0565344A2 (en) * 1992-04-06 1993-10-13 The Gates Rubber Company Flexible boot for universal joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309420A1 (en) * 1982-03-19 1983-09-29 Aisin Seiki K.K., Kariya, Aichi SEALING CUFF MADE OF ELASTOMERIC MATERIAL
DE3309644A1 (en) * 1982-03-19 1983-09-29 Aisin Seiki K.K., Kariya, Aichi SEALING CUFF
EP0241741A2 (en) * 1986-04-17 1987-10-21 TRW Ehrenreich GmbH & Co. KG Sealing bellow for ball-joints
EP0241741A3 (en) * 1986-04-17 1988-03-30 Trw Ehrenreich Gmbh & Co. Kg Sealing bellow for ball-joints
EP0565344A2 (en) * 1992-04-06 1993-10-13 The Gates Rubber Company Flexible boot for universal joint
EP0565344A3 (en) * 1992-04-06 1994-04-06 Gates Rubber Co

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