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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
  • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
• • 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
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B2/00—Friction-grip releasable fastenings
  • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
  • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
  • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
• • 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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
  • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
  • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
  • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
• • 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
  • F16J—PISTONS; CYLINDERS; SEALINGS
  • F16J3/00—Diaphragms; Bellows; Bellows pistons
  • F16J3/04—Bellows
  • F16J3/041—Non-metallic bellows
  • F16J3/042—Fastening details

Definitions

• the present invention relates to an arrangement provided for sheathing a shaft-like organ and / or a connection between two shafts or a joint, and a method for arranging a bellows-like sheathing of a drive shaft.
• Bellows-like arrangements for sheathing shaft-like elements, connections of shafts, such as in particular articulated connections or drive shafts, gear shafts and the like, are known.
• cardan shafts, gearbox joints, etc. are encased by means of rubber bellows, for example to protect the joints and prevent the lubrication from escaping.
• the rubber bellows are usually mounted on the cardan shafts with closed hose clamps or clamping or press rings, which are already arranged at the ends of the bellows, such as the so-called "Oetiker” clamps, which are well known in the market and which are used to connect the Bellows with the respective shaft sections are tensioned or shrunk using suitable tools or devices.
• EP 0 545 629 proposes a clamping ring that is already pre-assembled on a rubber bellows end and is still open, which is rather “automatically” held at the end on an assembly section of the rubber bellows. After assembling the rubber ring, this clamping ring must first be tensioned and closed in a first assembly step by applying a tool in order to then be pressed in a second assembly step if necessary. The latter especially when the clamping or. Due to manufacturing tolerances, the press ring does not already allow a secure assembly of the bellows by clamping.
• an arrangement provided for sheathing a shaft-like organ and / or a connection of two shafts or an articulated shaft, has a bellows-like structure
• each of which has a collar-like, largely ring-shaped section, with an open clamping, pressing or shrinking ring or a so-called open hose clamp arranged thereon Is biased towards the center in such a way that the two ends of the ring or clamping band overlap each other and the ring or the clamp is automatically held firmly on the section.
• a method for arranging a bellows-like casing of a propeller shaft or a geared joint for example for protecting the lubrication of a shaft connection or a joint
• the bellows-like casing depending on the end of a collar-like end section with an open clamping, pressing or Shrink ring or a hose clamp is provided, which is biased towards the center, the ends or the ends of which are provided with corresponding contours to form an engaging or interlocking connection of the ends and which ends overlap one another due to the prestressing, that at least subsequently one of the terminal collar sections is slipped or pushed onto a largely circular support section provided on a shaft or in the area of the shaft end, which is intended for arranging and holding one of the ends of the bellows-like casing, with slipping on or pushing on n and widening the collar-like end of the bellows-like casing of the clamping, pressing or shrinking ring or the hose clamp is expanded in such a way that the two ends of the bellows
• the arrangement or the method defined according to the invention is of course suitable for the sheathing of shafts or shaft-like elements of different types, for the sheathing or protection of articulated connections, cardan shafts, gear shafts etc.
• the various bellows-like elements made of the most varied, elastic materials, such as rubber, elastomers, thermoplastic plastics, etc. are used, as are the various tube clamps, compression or shrink rings, the ends connecting the two band ends of the clamps or the rings can be designed in a wide variety of ways. It is essential that the two ends have a contour which, when the clamp or band is widened, enables a connection which engages or engages with one another or slides or snaps into one another.
• the great advantage of the method proposed according to the invention lies in the fact that the preselected clamped shrink ring or press ring or clamping ring can be made smaller and more precise and is therefore cheaper to produce.
• the ring according to the invention can be inserted from the side and can be positioned exactly where it is ultimately to be arranged.
• this can also be used to arrange a shrink or press ring at a specific location, which is provided with corresponding production or assembly data, which are to be placed precisely at this location.
• these possibly important information can be viewed later on the shrink or press ring placed according to the invention, which information can be stamped on the press ring, for example.
• FIG. 2 shows a detail from FIG. 1, illustrating the overlapping band ends of the shrinking or pressing ring from FIG. 1,
• FIG. 6 shows the bellows from FIG. 1 in the state arranged on a shaft end before the pressing or clamping ring is pressed
• Fig. 8 shows a further embodiment of the connection of press or tension ring
• Fig. 9 in the sense of an example, a device for shrinking or tensioning the clamping or pressing ring on the bellows.
• FIG. 1 shows, viewed in perspective in the direction towards the larger bellows end, an arrangement according to the invention, comprising a bellows 10 with the individual bellows sections 12.
• the bellows 10 can consist, for example, of a rubber or a rubber mixture or of another suitable elastomer material, such as a suitable thermoplastic.
• a clamping or pressing or shrinking ring 20 is arranged on the larger, collar-like end 14 visible in FIG. 1.
• the two ends 22 and 24 are loosely arranged, overlapping one another, ie in other words the shrink ring 20 is loosely and can be separated at any time by pull the two ends of the collar 14 of the bellows 10 can be removed.
• the shrink ring 20 is automatically held firmly on the terminal collar 14 of the bellows 10, it is, on the one hand, as already mentioned, designed to be biased towards the center of the ring, and in addition the collar 14 preferably has a terminal edge 16 and one further, second edge-like gradation 18, which is formed towards the first bellows section.
• the edge 16 and the gradation 18 are preferably designed so that they are spaced apart from one another in such a way that the width of the ring can be fixed in between.
• FIG. 2 in which the two band ends 22 and 24 from FIG.
• the one band end 22 has a protruding tongue 23 or tab, with laterally, ie transversely to the band direction, preceding sections.
• a corresponding recess or notch 25 is provided, not visible, so that when the ring band 20 is expanded, the tab 23 can snap into the corresponding recess 25 without loss.
• the end of the band which has the tongue or tongue 23 is arranged towards the outside.
• Fig. 4 another approach is shown, in which it is also conceivable that the bellows is reduced in diameter by pre-assembly of the already closed clamping or shrink ring by an inward-facing deformation thereof, so that the already closed ring can be opened .
• This method is possible in connection with rubber-like materials for bellows, but hardly in connection with the thermoplastic materials or elastomers, such as Hytrel, Anitel, etc., which are mostly used today.
• the shrink or press ring 20 shown in FIG. 5 is used, which is designed to be biased towards the center, and that the two band ends 22 and 24 overlap in the loose state. This creates a clamping or clamping effect, which the press or
• Shrink ring 20 automatically holds on the collar-like end 14, as shown in Fig. 1.
• the bellows 10 When the bellows 10 is assembled with a preassembled shrink or press ring 20, such as a so-called multi-crimp ring (MCR), on the metallic counterpart or end of a shaft, the collar-like end 14 of the bellows is expanded.
• MCR multi-crimp ring
• the MCR that overlaps with the two open ends of the tape in the delivery state is also stretched by this widening process, and the two ends snap automatically on the same band level, as can be clearly seen in FIG. 6.
• the tab or tongue 23 snaps into the corresponding recess 25 in the band end 24, and because of the configuration of the tongue or tab 23 with the portions projecting laterally in the direction of the band, the two ends lock.
• 6a shows a semi-axis 50, having two joints, arranged on the one hand between a drive shaft 51 and a connecting shaft or steering shaft 53, and on the other hand between the connecting or steering shaft 53 and the wheel shaft or wheel hub 55.
• the two joints are each encased by means of a bellows 10, which protects the joints or "ensures" their lubrication.
• the two bellows 10 are in turn secured with shrink or press rings 20 proposed according to the invention, the two band ends 22 and 24 and the tongue 23 engaging in a corresponding recess being clearly visible on the shrink ring near the drive shaft 51.
• FIG. 7 and 8 show, for example, possible design variants of band ends
• the tab projecting from one end 22 or edge 26 has the mentioned sections 28 projecting transversely to the band direction.
• the end of the band section 22 has sections 29 protruding laterally to the tab 23, in order to prevent the regions behind the two sections 28 from breaking out laterally in the end 24.
• the tab and corresponding recess are preferably designed in such a way that a loss-free interlocking is ensured.
• FIG. 8 shows a further embodiment variant of a connection, the tab or tongue 23 ′, which in turn is arranged centrally in the band end 22, being arranged to engage in a corresponding recess 25 ′.
• the tab or tongue 23 ′ which in turn is arranged centrally in the band end 22, being arranged to engage in a corresponding recess 25 ′.
• several sections projecting laterally to the belt direction are provided, which also have special contours.
• FIGS. 7 and 8 The two band connections or band closures, shown in FIGS. 7 and 8, are of course only examples and only serve for a better understanding of the present invention.
• This invention also includes, of course, any other tape fasteners or connections which enable the ends to be automatically engaged or engaged or snapped in during the processing of the tape.
• the device 40 shown has, in a simplified manner, ring-shaped clamping segments 41 which can be actuated inwards and which overall have an ring-shaped opening 43 with their inner contours.
• the individual clamping segments 41 can be pressed or driven radially inward by a hydraulic or pneumatic device 42 in order to reduce the diameter of the shrinking or pressing ring or to shrink it.
• the present new development thus includes clamping or shrink rings or so-called multi crimp rings (MCR) with open ends and known mechanical closure. Due to the fact that these MCR are manufactured with open ends, they can be manufactured with the appropriate preload. This preload causes a spring effect in the direction of the ring center. This spring action can be used to ensure that the ring automatically holds itself in the groove provided in the area of the end projection in the groove provided, for example, for receiving MCR, since it is known that practically every type of bellows is produced with the groove mentioned.
• This groove can be formed continuously or only as a single cam, arranged on the bellows circumference. Pre-assembly is thus possible, and without any structural changes to the bellows, i.e. Every series-produced bellows can be equipped with the integrated MCR, provided as a system, which saves one work step during final assembly.
• FIGS. 1-9 in connection with the arrangement of bellows are of course only examples which illustrate the inventive idea or the assembly process mentioned should explain in more detail.
• Both the configuration of the bellows, in particular the material used for the bellows, as well as the configuration of the clamping or shrink ring or the so-called MCR and, in turn, the material used for this are of course variable in any manner, and the invention is not restricted to any embodiment variant.
• aluminum is suitable for the production of the MCR, for example, but of course stainless steel or any other suitable metallic materials can also be used.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Clamps And Clips (AREA)
• Diaphragms And Bellows (AREA)
• Sealing Devices (AREA)
• Cable Accessories (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
• Flexible Shafts (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8232745

Family Applications (1)

Country Status (15)

Families Citing this family (11)

Citations (5)

Family Cites Families (11)

• 1998
  • 1998-10-02 EP EP98118717A patent/EP0990811B1/de not_active Expired - Lifetime
  • 1998-10-02 DE DE59808646T patent/DE59808646D1/de not_active Expired - Lifetime
  • 1998-10-02 ES ES98118717T patent/ES2201386T3/es not_active Expired - Lifetime
  • 1998-10-02 PT PT98118717T patent/PT990811E/pt unknown
  • 1998-10-02 AT AT98118717T patent/ATE242438T1/de active
• 1999
  • 1999-09-13 CA CA002346026A patent/CA2346026C/en not_active Expired - Fee Related
  • 1999-09-13 KR KR1020017004197A patent/KR100647502B1/ko not_active Expired - Fee Related
  • 1999-09-13 MX MXPA01003268A patent/MXPA01003268A/es not_active IP Right Cessation
  • 1999-09-13 AU AU55012/99A patent/AU750681B2/en not_active Ceased
  • 1999-09-13 US US09/806,386 patent/US6511380B1/en not_active Expired - Fee Related
  • 1999-09-13 CN CNB998116955A patent/CN1151340C/zh not_active Expired - Fee Related
  • 1999-09-13 WO PCT/CH1999/000428 patent/WO2000020772A1/de not_active Ceased
  • 1999-09-13 JP JP2000574850A patent/JP4922487B2/ja not_active Expired - Fee Related
  • 1999-09-13 BR BR9914133-7A patent/BR9914133A/pt not_active IP Right Cessation
• 2001
  • 2001-03-27 ZA ZA200102484A patent/ZA200102484B/xx unknown

Patent Citations (5)

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