WO2022157194A1 - Accouplement d'arbre creux - Google Patents

Accouplement d'arbre creux Download PDF

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Publication number
WO2022157194A1
WO2022157194A1 PCT/EP2022/051125 EP2022051125W WO2022157194A1 WO 2022157194 A1 WO2022157194 A1 WO 2022157194A1 EP 2022051125 W EP2022051125 W EP 2022051125W WO 2022157194 A1 WO2022157194 A1 WO 2022157194A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow shaft
shaft
friction
clamping
increasing agent
Prior art date
Application number
PCT/EP2022/051125
Other languages
German (de)
English (en)
Inventor
Rainer Peter
Thomas MOKKA
Hauke Jandrey
Original Assignee
Ringfeder Power Transmission Gmbh
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 Ringfeder Power Transmission Gmbh filed Critical Ringfeder Power Transmission Gmbh
Publication of WO2022157194A1 publication Critical patent/WO2022157194A1/fr

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
    • F16D1/093—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping
    • F16D1/095—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping with clamping effected by ring contraction only
    • 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
    • F16B2/005—Means to increase the friction-coefficient

Definitions

  • the invention relates to a hollow shaft coupling which is suitable for connecting a shaft to a hollow shaft and is provided with at least one clamping set which is suitable for clamping the hollow shaft directly against the shaft, with at least a friction-increasing agent is present in certain areas.
  • the invention also relates to a hollow shaft coupling which is suitable for connecting a shaft to a hollow shaft and is provided with at least one clamping set which is suitable for clamping the hollow shaft to the shaft via a clamping bushing arranged between the hollow shaft and the shaft, with between the mutually opposite joining surfaces of the hollow shaft and clamping bush and/or between the mutually opposite joining surfaces of clamping bush and shaft a friction-increasing agent is present at least in regions.
  • the torque is transmitted by elastic contraction of a hollow shaft to a solid shaft and thus by surface pressure between the inner bore of the hollow shaft and the solid shaft.
  • a hollow shaft coupling the torque is transmitted by elastic contraction of a hollow shaft to a solid shaft and thus by surface pressure between the inner bore of the hollow shaft and the solid shaft.
  • Hollow shaft couplings are known in numerous simple and complex designs. A representative of the latter type is described in EP 2 187 076 B1.
  • Friction-increasing agents that are applied to the joining surfaces are already known. For example, liquids are known which fill out unevenness in the surface. A coating forms after curing. This increases the torque that can be transmitted.
  • a friction means is known from EP 2 727 781 B1, which is used, among other things, in a friction brake of a rail vehicle.
  • This known friction medium is introduced between a wheel friction partner and a braking friction partner when a wheel is braked.
  • the wheel friction partner is a rotating wheel and thus a movable element, while the brake friction partner is a non-rotatably attached to the vehicle and therefore stationary element.
  • noises can be reduced by this known friction means and the volume or the frequency of these noises can be influenced in a targeted manner.
  • Friction means with active particles made of metal are known from AT 504 336 A4. This well-known friction medium is cured after application. Dismantling afterwards is not easily possible.
  • the object of the present invention is to provide a hollow shaft coupling that is equipped with a friction-increasing or friction-increasing agent and can nevertheless be easily dismantled again.
  • the friction-increasing agent has at least one active particle made of a metal and the metal is selected from the group consisting of aluminum, calcium, beryllium, iron, copper, zinc and tin and alloys or mixtures with at least 2 of these metals . It was surprisingly found that the friction-increasing agent, which contains at least one of the metals that are also used in the known friction agent according to EP 2 727 781 B1, leads to an increase in the coefficient of friction of a hollow shaft clutch and thus of 2 stationary and non-moving partners. It must be taken into account that the known friction medium itself represents a type of lubricating oil or lubricant.
  • the friction-increasing agent contains at least one highly viscous carrier material for receiving active particles, the carrier material being selected from the group consisting of o polyhydric alcohols such as glycerol and polyglycols, o polyethylene glycol, o polypropylene glycol, o gels such as silica gel and o mixtures of at least 2 of these materials.
  • the carrier material being selected from the group consisting of o polyhydric alcohols such as glycerol and polyglycols, o polyethylene glycol, o polypropylene glycol, o gels such as silica gel and o mixtures of at least 2 of these materials.
  • the friction-increasing agent contains at least one low-viscosity carrier material selected from the group consisting of o monohydric alcohols such as methanol, ethanol, propanol or butanol, o polyhydric alcohols such as glycol, o water, o vegetable oils such as soybean oil or linseed oil , o silicone oils, o mixtures of at least 2 of these materials.
  • o monohydric alcohols such as methanol, ethanol, propanol or butanol
  • o polyhydric alcohols such as glycol, o water, o vegetable oils such as soybean oil or linseed oil , o silicone oils, o mixtures of at least 2 of these materials.
  • This low-viscosity carrier material affected the applicability of the friction-increasing agent.
  • the friction-increasing agent essentially has the rheological properties of a non-Newtonian fluid and/or a viscoelastic gel.
  • the friction-increasing agent has metallic active particles whose hardness is less than the hardness of the hollow shaft and the shaft.
  • the friction-increasing agent has metallic active particles made of aluminum and/or copper and a silicate thickener and at least one unsaturated fatty acid, with at least half the volume of the friction-increasing agent being occupied by this unsaturated fatty acid and at least a quarter by these metallic active particles.
  • the friction-increasing agent is preferably a friction agent according to the teaching of European patent specification EP 2 727 781 B1.
  • the teaching of this patent specification is hereby incorporated into the text by reference.
  • the joining surfaces of both the hollow shaft and the shaft are preferably untreated.
  • the joining surfaces of both the hollow shaft and the shaft have no additional covering or coating applied.
  • One or both joining surfaces of the clamping bushing are preferably untreated and/or have no additional covering or coating applied.
  • the clamping bush can have a longitudinal gap.
  • the shaft is preferably a solid shaft.
  • the subject matter of the invention is also a method for connecting a hollow shaft to a shaft with the aid of a clamping set, in which a) a friction-increasing agent is applied at least in regions to a joint surface on the inner lateral surface of the hollow shaft, to a joint surface on the outer lateral surface of the shaft or to both joint surfaces , the joining surfaces are brought into an opposite position and the hollow shaft is clamped directly against the shaft by means of the clamping set, or b) a clamping bush is additionally used, which is suitable for being arranged between the shaft and the hollow shaft, and on a joining surface on the inner lateral surface the hollow shaft, a friction-increasing agent is applied at least in regions to a joint surface on the outer surface of the shaft, to a joint surface on the outer surface of the clamping bush or to a joint surface on the inner surface of the clamping bush, or to two, three or all of these joint surfaces, the shaft, the hollow shaft and the Clamping bushings are pushed into one another in
  • the friction-increasing agent used is one with at least one active particle made of a metal and the metal is selected from the group consisting of aluminum, calcium, beryllium, iron, copper, zinc and tin and alloys or mixtures with at least 2 of these metals.
  • a friction-increasing agent is preferably used which corresponds to the preferred friction-increasing agents described above.
  • the subject matter of the invention is also the use of one of the above-described friction-increasing means for producing a removable connection of a hollow shaft to a shaft.
  • FIG. 1 shows a longitudinal section through a conventional hollow shaft coupling
  • FIG. 2 shows a corresponding longitudinal section of an embodiment in which the hollow shaft coupling is equipped with an additional clamping bush.
  • the hollow shaft coupling shown in FIG. 1 is a coupling in which the hollow shaft and the shaft are pressed directly using a 3-part shrink disc.
  • a shaft in the form of a solid shaft 2 is inserted into the hollow shaft 1 .
  • a shrink disk 3 runs radially around the outside of the hollow shaft 1 and has 2 annular disk elements 3', 3'' in which a plurality of through bores 4 are arranged.
  • One of these bores 4 extends in each case Threaded screw 5 from the ring disk element 3" axially in the direction of the ring disk element 3'.
  • These threaded screws 5 have a head 6 which is in contact with the ring disk element 3''.
  • the free end of the threaded screw 5 protrudes with its external thread into the bore 4 of the Ring disk element 3 'into or is screwed into the bore 4, which is a threaded bore in the ring disk element 3.
  • the two ring disk elements 3', 3" each have a contact surface 10, 10', which are inclined in opposite directions with respect to the cross-sectional plane of the hollow shaft coupling and form a type of roof.
  • a radially encircling pressure ring 7 is located radially on the inside of the two ring disk elements 3 , 3 ′.
  • the pressure ring 7 has two inclined surfaces 11, 11' which are inclined in opposite directions with respect to the cross-sectional plane of the hollow shaft coupling, form a kind of roof and bear against the opposite contact surfaces 10 and 10'.
  • the contact surface 10 slides onto the opposite inclined surface 11 and the contact surface 10' onto the opposite inclined surface 11' of the pressure ring 7, as a result of which this pressure ring 7 is pressed radially inwards and the hollow shaft 1 with the shaft 2 directly pressed.
  • the previously described friction-increasing agent 12 is applied at least in regions to the surfaces of the solid shaft 2 and the hollow shaft 1, which are in contact with one another or come into contact during pressing. These surfaces represent the joining surfaces 13 and 14 .
  • the joining surface 13 is a section of the outer lateral surface of the shaft 2
  • the joining surface 14 is a section of the inner lateral surface of the hollow shaft 1 .
  • the joining surfaces are expediently cylindrical.
  • the friction-increasing agent 12 is previously adjusted to the desired position as described above Joining surface applied at least partially.
  • the hollow shaft 1, shaft 2 and shrink disk 3 are then pushed into one another so that the shrink disk 3 is located radially on the outside of the hollow shaft 1 and the shaft 2 is on the inside of the hollow shaft 1.
  • the joining surfaces 13, 14 are in an opposite position.
  • the hollow shaft 1 is then pressed onto the shaft 2 using the shrink disc 3 .
  • the coefficient of friction is increased by the friction-increasing means 12, thereby increasing the torque transmission.
  • the described connection between the shaft 2 and the hollow shaft 1 can be released by loosening the clamping screw 3 so that the hollow shaft coupling can be dismantled.
  • FIG. 2 there is also a cylindrical clamping bush 15 which is arranged between hollow shaft 1 and shaft 2 .
  • the remaining elements correspond to the elements that are present in the embodiment according to FIG. In FIG. 2, these elements have the same reference numbers as in the embodiment according to FIG. 1.
  • the statements made with regard to the embodiment according to FIG. 1 therefore also apply to the embodiment according to FIG.
  • the shaft 2 protrudes into the clamping bush 15, while the clamping bush 15 is inserted into the hollow shaft 1.
  • the joining surface 13 located on the outer lateral surface of the shaft 2 is opposite the joining surface 16 on the inner lateral surface of the clamping bush 15 and bears against it at least in the pressed state. In between is the friction-increasing means 12.
  • the joining surface 14 is located on the outer lateral surface of the clamping bushing 15, which is opposite the joining surface 17 on the inner lateral surface of the hollow shaft 1 and bears against it at least in the pressed state.
  • the friction-increasing means 12 is located between the joining surfaces 14, 17.
  • the hollow shaft 1 is pressed with the shaft 2 via a clamping bushing 15 located between them. This can also be described as an indirect pressing of hollow shaft 1 and shaft 2.
  • clamping bushings 15 with different inside diameters can be used.
  • the procedure is similar to that described in connection with FIG.
  • the clamping bush 15 is brought into a position in which it is located between the hollow shaft 1 and the shaft 2. This position is shown in FIG.
  • the friction-increasing agent 12 is previously applied to a desired joint surface (13, 14, 16, 17) or to a plurality of desired joint surfaces. In this position, the joining surfaces (13, 16 or 14, 17) are in an opposite position.
  • the shrink sleeve 3 By actuating the shrink sleeve 3, the hollow shaft 1 is pressed to the shaft 2 via the clamping bush 15 and is thus connected.
  • this connection can be released by loosening the clamping screw 3 so that the hollow shaft coupling can be dismantled.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

L'invention concerne un accouplement d'arbre creux qui est approprié pour relier un arbre (2) à un arbre creux (1), et est pourvu d'au moins un ensemble de serrage (3) qui est approprié a) pour serrer l'arbre creux (1) directement contre l'arbre (2), un moyen d'augmentation de frottement (12) étant présent, au moins dans certaines régions, entre les surfaces d'assemblage mutuellement opposées (13, 14) de l'arbre creux (1) et de l'arbre (2), ou b) pour serrer l'arbre creux (1) à l'arbre (2) au moyen d'une douille de serrage (15) disposée entre l'arbre creux (1) et l'arbre (2), un moyen d'augmentation de frottement (12) étant présent, au moins dans certaines régions, entre les surfaces d'assemblage mutuellement opposées (14, 17) de l'arbre creux (1) et de la douille de serrage (15) et/ou entre les surfaces d'assemblage (13, 16) mutuellement opposées de la douille de serrage (15) et de l'arbre (2). Cet accouplement d'arbre creux est caractérisé en ce que le moyen d'augmentation de frottement (12) comprend au moins une particule active constituée d'un métal et le métal est choisi dans le groupe constitué par l'aluminium, le calcium, le béryllium, le fer, le cuivre, le zinc et l'étain, ainsi que par des alliages ou des mélanges contenant au moins deux de ces métaux. L'invention concerne également un procédé de liaison d'un arbre creux (1) à un arbre (2) et l'utilisation d'un moyen d'augmentation de frottement (12) précité pour réaliser une liaison entre un arbre creux (1) et un arbre (2). Le moyen d'augmentation de frottement (12) conduit à une augmentation du coefficient de frottement mais assure également que la liaison entre l'arbre creux (1) et l'arbre (2) peut être à nouveau désassemblée de manière simple.
PCT/EP2022/051125 2021-01-20 2022-01-19 Accouplement d'arbre creux WO2022157194A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021101128.0 2021-01-20
DE102021101128.0A DE102021101128B4 (de) 2021-01-20 2021-01-20 Hohlwellenkupplung

Publications (1)

Publication Number Publication Date
WO2022157194A1 true WO2022157194A1 (fr) 2022-07-28

Family

ID=80050554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/051125 WO2022157194A1 (fr) 2021-01-20 2022-01-19 Accouplement d'arbre creux

Country Status (2)

Country Link
DE (1) DE102021101128B4 (fr)
WO (1) WO2022157194A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294751B (de) 1965-10-25 1969-05-08 Winkelhaus Werner Kraftschluessige, loesbare Nabenbefestigung fuer eine Radscheibe
AT504336A4 (de) 2007-02-09 2008-05-15 Miba Sinter Austria Gmbh Kettenrad
EP2187076B1 (fr) 2008-11-13 2012-07-18 Ringfeder Power-Transmission GmbH Couplage d'arbre creux
DE102012212295A1 (de) 2012-07-13 2014-01-16 Aktiebolaget Skf Verfahren zum Erzeugen einer ein Drehmoment übertragenden Verbindung und drehmomentübertragende Anordnung
WO2015082365A1 (fr) * 2013-12-06 2015-06-11 Cct Composite Coating Technologies Gmbh Système stratifié pour l'assemblage de composants
EP2727781B1 (fr) 2012-10-31 2018-05-23 Lubricant Consult GmbH Véhicule, notamment véhicule ferroviaire, doté d'un frein à friction et son procédé de fonctionnement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294751B (de) 1965-10-25 1969-05-08 Winkelhaus Werner Kraftschluessige, loesbare Nabenbefestigung fuer eine Radscheibe
AT504336A4 (de) 2007-02-09 2008-05-15 Miba Sinter Austria Gmbh Kettenrad
EP2187076B1 (fr) 2008-11-13 2012-07-18 Ringfeder Power-Transmission GmbH Couplage d'arbre creux
DE102012212295A1 (de) 2012-07-13 2014-01-16 Aktiebolaget Skf Verfahren zum Erzeugen einer ein Drehmoment übertragenden Verbindung und drehmomentübertragende Anordnung
EP2727781B1 (fr) 2012-10-31 2018-05-23 Lubricant Consult GmbH Véhicule, notamment véhicule ferroviaire, doté d'un frein à friction et son procédé de fonctionnement
WO2015082365A1 (fr) * 2013-12-06 2015-06-11 Cct Composite Coating Technologies Gmbh Système stratifié pour l'assemblage de composants

Also Published As

Publication number Publication date
DE102021101128A1 (de) 2022-07-21
DE102021101128B4 (de) 2022-08-18

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