GB1562153A - Centring sleeve for shaft coupling - Google Patents

Centring sleeve for shaft coupling Download PDF

Info

Publication number
GB1562153A
GB1562153A GB2881377A GB2881377A GB1562153A GB 1562153 A GB1562153 A GB 1562153A GB 2881377 A GB2881377 A GB 2881377A GB 2881377 A GB2881377 A GB 2881377A GB 1562153 A GB1562153 A GB 1562153A
Authority
GB
United Kingdom
Prior art keywords
sleeve
shaft coupling
stud
rubber
diameter
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.)
Expired
Application number
GB2881377A
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.)
Goetze GmbH
Original Assignee
Goetze 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 Goetze GmbH filed Critical Goetze GmbH
Publication of GB1562153A publication Critical patent/GB1562153A/en
Expired legal-status Critical Current

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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/68—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being made of rubber or similar material
    • 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
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • 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
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/78—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Support Of The Bearing (AREA)
  • Tires In General (AREA)

Description

(54) CENTERING SLEEVE FOR SHAFT COUPLING (71) We, GOETZE AG (formally known as GOETZEWERKE FRIEDRICH GOETZE AKT IENGESELLSCHAFT) a Body Corporate organised and existing under the laws of the Federal Republic of Germany, of Hauptverwaltung, Burgermeister-Schmidt-Strasse 17, 5093 Burscheid 1, Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention relates to a shaft coupling including a centring device comprising a rigid sleeve connected to one shaft end and an integral body of elastomeric material disposed between the sleeve and a stud connected to the other shaft end.
In our U.K. Patent Application No. 43877/75 (Serial No. 1,502,129) we describe and claim a shaft coupling including a centring device comprising a rigid sleeve connected to one shaft end and an integral body of elastomeric material concentrically disposed within the sleeve, the outer surface of the body engaging the sleeve and the inner surface presenting a guide path which engages with a cylindrical stud rigidly connected to the other shaft end, the guide part including a peripheral rib of inwardly convex profile having an internal diameter in the unassembled state which is smaller than the external diameter of the stud.
The present invention is an improvement in that shaft coupling in accordance with which the body of elastomeric material when in the compressed state between the sleeve and the stud has different radial wall thicknesses along its axial length, the minimum wall thickness being situated in the plane perpendicular to the axis of the stud and containing the pivot point about which the shafts are relatively movable.
This improved construction gives more exact centering of the stud without impairing the angular mobility of the sleeve. The radial spring stroke, that is to say the radial movement permitted by the elastomeric material, is dependent on the radial wall thickness of the material. Thus the construction in accordance with the invention results in a smaller radial spring stroke in the region of the first point without altering the radial spring stroke at the ends of the sleeve. The new construction is easy to achieve from a technical production standpoint.
The sleeve may have a turned or mechanical profile but is preferably formed from tube with a corrugation pressed into the tube wall to form an inwardly directed peripheral rib. Preferably the corrugation coincides with the axial centre of the sleeve.
An embodiment example of the invention is represented in the drawings and is described in the following. In the drawings: Figure 1 shows the front view of a resilient shaft coupling, and Figure 2 shows a cross-section of the centring sleeve in the fitted condition.
The shaft connection represented in Figure 1 comprises a resilient shaft coupling 1 having a hub spider 2 and the columnar rubber springs 3.
Vulcanised in between the latter are alternately adapter sleeves 4 and the arms 5 of the hub spider 2. The adapter sleeves 4 are connected to one shaft end 7 and the hub spider is connected to the other shaft end 9.
As shown in Figure 2, inserted in the hub spider 2 axially in a corresponding hub bore is a centring sleeve 6 for centring the shaft end 7 with respect to the shaft coupling 1. A cylindrical stud 8 of the shaft end 7 projects into the centring sleeve 6. For receiving and damping radial vibration movements between the stud 8 and the hub spider 2, and for compensating relative angular movements of the shafts 7 and 9, the centring sleeve 6 comprises a resilient rubber intermediate layer 10 and an outer rigid sleeve 11. The radial wall thickness of the layer 10 when compressed between the sleeve 11 and the stud 8 is a minimum in the axial middle region.
The rigid sleeve 11, consisting of a piece of tube, has an inwardly directed peripheral corrugation 12 in the region of the radial plane passing through the pivoting point 18 of the resilient shaft coupling 1. The inner peripheral surface 13 of the rubber intermediate layer 10 in the axially middle region, forming a peripheral bead, is convexly shaped and has a smaller internal diameter than the external diameter of the pin 8, so that in the assembled condition, the rubber layer 10 is pressure-prestressed radially.
Axially adjacent the beading 14 annular recesses 15, 16 are provided on both sides, and have a diameter larger than the pin diameter. The recesses 15, 16 on the one hand facilitate the deformability of the axial edge zones of the rubber intermediate layer 10 and, if an oilresistant rubber material is used, serve to receive lubricants.
For externally sealing the lubricated bearing place of the pin 8 in the centring sleeve 6, a sealing lip 17 is vulcanised onto the rubber body 10.
WHAT WE CLAIM IS: 1. A shaft coupling including a centring device comprising a rigid sleeve connected to one shaft end and an integral body of elastomeric material concentrically disposed within the sleeve, the outer surface of the body engaging the sleeve and the inner surface presenting a guide part which engages with a cylindrical stud rigidly connected to the other shaft end, the guide part including a peripheral rib of inwardly convex profile having an internal diameter in the unassembled state which is smaller than the external diameter of the stud, characterized in that the body of elastomeric material when in the compressed state between the sleeve and the stud has different radial wall thicknesses along its axial length, the minimum wall thickness being situated in the plane perpendicular to the axis of the stud and containing the pivot point about which the shafts are relatively movable.
2. A shaft coupling according to claim 1, in which the sleeve has an inwardly directed peripheral rib.
3. A shaft coupling according to claim 2, in which the rib of the sleeve is in the form of a corrugation in the sleeve wall.
4. A shaft coupling according to claim 3, in which the corrugation coincides with the axial centre of the sleeve.
5. A shaft coupling substantially as described with reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. through the pivoting point 18 of the resilient shaft coupling 1. The inner peripheral surface 13 of the rubber intermediate layer 10 in the axially middle region, forming a peripheral bead, is convexly shaped and has a smaller internal diameter than the external diameter of the pin 8, so that in the assembled condition, the rubber layer 10 is pressure-prestressed radially. Axially adjacent the beading 14 annular recesses 15, 16 are provided on both sides, and have a diameter larger than the pin diameter. The recesses 15, 16 on the one hand facilitate the deformability of the axial edge zones of the rubber intermediate layer 10 and, if an oilresistant rubber material is used, serve to receive lubricants. For externally sealing the lubricated bearing place of the pin 8 in the centring sleeve 6, a sealing lip 17 is vulcanised onto the rubber body 10. WHAT WE CLAIM IS:
1. A shaft coupling including a centring device comprising a rigid sleeve connected to one shaft end and an integral body of elastomeric material concentrically disposed within the sleeve, the outer surface of the body engaging the sleeve and the inner surface presenting a guide part which engages with a cylindrical stud rigidly connected to the other shaft end, the guide part including a peripheral rib of inwardly convex profile having an internal diameter in the unassembled state which is smaller than the external diameter of the stud, characterized in that the body of elastomeric material when in the compressed state between the sleeve and the stud has different radial wall thicknesses along its axial length, the minimum wall thickness being situated in the plane perpendicular to the axis of the stud and containing the pivot point about which the shafts are relatively movable.
2. A shaft coupling according to claim 1, in which the sleeve has an inwardly directed peripheral rib.
3. A shaft coupling according to claim 2, in which the rib of the sleeve is in the form of a corrugation in the sleeve wall.
4. A shaft coupling according to claim 3, in which the corrugation coincides with the axial centre of the sleeve.
5. A shaft coupling substantially as described with reference to the accompanying drawing.
GB2881377A 1976-07-09 1977-07-08 Centring sleeve for shaft coupling Expired GB1562153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762630874 DE2630874C2 (en) 1976-07-09 1976-07-09 Centering sleeve

Publications (1)

Publication Number Publication Date
GB1562153A true GB1562153A (en) 1980-03-05

Family

ID=5982569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2881377A Expired GB1562153A (en) 1976-07-09 1977-07-08 Centring sleeve for shaft coupling

Country Status (4)

Country Link
DE (1) DE2630874C2 (en)
FR (1) FR2357780A1 (en)
GB (1) GB1562153A (en)
IT (1) IT1114608B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131913A (en) * 1982-12-11 1984-06-27 Brd Co Ltd Flexible couplings
WO2004097239A1 (en) * 2003-04-25 2004-11-11 SGF SüDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG Centring device for mutually centring two shaft ends

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419429A1 (en) * 1978-03-10 1979-10-05 Hutchinson Mapa IMPROVEMENTS MADE TO ELASTIC COUPLINGS
AT392132B (en) * 1987-11-03 1991-01-25 Steyr Daimler Puch Ag CONNECTION OF THE CRANKSHAFT OF A SOUND-ENCLOSED INTERNAL COMBUSTION ENGINE WITH THE COAXIAL DRIVE SHAFT OF THE AUXILIARIES OUTSIDE THE CAPSULE
DE102019002353A1 (en) * 2019-03-29 2020-10-01 Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG Centering device for centering two shaft sections

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR445494A (en) * 1911-09-04 1912-11-12 Des Anciens Etablissements Panhard Et Levassor Flexible joint for connecting two transmission shafts
GB642694A (en) * 1948-01-16 1950-09-06 Paxman & Co Ltd Davey Improvements in or relating to shaft couplings
FR1320877A (en) * 1962-01-31 1963-03-15 Hispano Suiza Sa Improvements made to devices for coupling in rotation two rotating shafts, in particular two shafts arranged end to end
DE1266578B (en) * 1964-10-13 1968-04-18 Goetzewerke Elastic shaft coupling
FR1480851A (en) * 1966-05-24 1967-05-12 Daimler Benz Ag Device for centering two shafts connected by an elastic articulation disc, in particular of articulation shafts on motor cars
DE6930864U (en) * 1969-08-01 1969-11-27 Skf Kugellagerfabriken Gmbh CENTER BEARING
GB1276770A (en) * 1970-03-19 1972-06-07 Gkn Transmissions Ltd Improvements in propeller shaft assemblies
DE2453027C3 (en) * 1974-11-08 1978-04-27 Goetzewerke Friedrich Goetze Ag, 5093 Burscheid Centering sleeve of a flexible coupling for cardan shafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131913A (en) * 1982-12-11 1984-06-27 Brd Co Ltd Flexible couplings
WO2004097239A1 (en) * 2003-04-25 2004-11-11 SGF SüDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG Centring device for mutually centring two shaft ends

Also Published As

Publication number Publication date
IT1114608B (en) 1986-01-27
DE2630874C2 (en) 1982-11-18
DE2630874A1 (en) 1978-01-12
FR2357780A1 (en) 1978-02-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee