EP4587725A1 - Ensemble palier comprenant un arbre, une partie boîtier et un palier, et engrenage comprenant un ensemble palier - Google Patents

Ensemble palier comprenant un arbre, une partie boîtier et un palier, et engrenage comprenant un ensemble palier

Info

Publication number
EP4587725A1
EP4587725A1 EP23748069.4A EP23748069A EP4587725A1 EP 4587725 A1 EP4587725 A1 EP 4587725A1 EP 23748069 A EP23748069 A EP 23748069A EP 4587725 A1 EP4587725 A1 EP 4587725A1
Authority
EP
European Patent Office
Prior art keywords
retaining ring
ring
axial
shaft
shims
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
Application number
EP23748069.4A
Other languages
German (de)
English (en)
Inventor
Steffen Saar
Tobias Schwan
Christoph Ruppaner
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.)
SEW Eurodrive GmbH and Co KG
Original Assignee
SEW Eurodrive GmbH and Co KG
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 SEW Eurodrive GmbH and Co KG filed Critical SEW Eurodrive GmbH and Co KG
Publication of EP4587725A1 publication Critical patent/EP4587725A1/fr
Pending 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/62—Positive connections with pins, bolts or dowels
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/72—Positive connections with complementary interlocking parts with bayonet joints, i.e. parts are rotated to create positive interlock
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/70—Positive connections with complementary interlocking parts
    • F16C2226/76—Positive connections with complementary interlocking parts with tongue and groove or key and slot
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings

Definitions

  • Bearing arrangement comprising a shaft, a housing part and a bearing, and gearbox with bearing arrangement
  • the invention relates to a bearing arrangement, having a shaft, a housing part and a bearing, and a gearbox with a bearing arrangement.
  • a rotary piston machine is known from EP 3 960 984 A1.
  • the invention is therefore based on the object of developing a transmission, whereby a robust compensation of manufacturing-related tolerances and a long service life should be achieved during operation of the transmission.
  • the object is achieved in the bearing arrangement according to the features specified in claim 1 and in the transmission according to the features specified in claim 15.
  • a first ring, in particular an outer ring, of the bearing is received in a bore of the housing part, with a second ring, in particular an inner ring, of the bearing is attached to the shaft, wherein a disc pack axially delimits the first or second ring, in particular the inner ring or outer ring, the disc pack having a first retaining ring and one or more shims, the first retaining ring being non-rotatable or positively secured against rotation in the circumferential direction.
  • the advantage here is that even with variable, especially flexing, transverse forces, the disk package remains robust and thus effects the axial limitation of the bearing in the intended manner.
  • the retaining rings bridge interruptions in the contact surface, in particular, for example, grooves that run through the contact surface.
  • the shims are very thin and would not permanently fulfill their intended function of axial spacing or would even fail if there were interruptions in the contact surface.
  • the retaining rings hold the shims in a protective manner and the shims therefore rest continuously on the retaining rings, the service life of the shims is increased and can in particular be described as durable.
  • Working shims into grooves that interrupt the contact surface of the shims is therefore prevented because these grooves, i.e. interruptions in the contact surfaces, are bridged by the retaining rings.
  • the anti-twist device prevents the disc pack from wandering around when the transverse forces fluctuate, thus ensuring a long service life.
  • the axial direction is always aligned parallel to the direction of the axis of rotation of the shaft, in particular the circumferential direction and the radial direction are related to the axis of rotation of the shaft.
  • the first retaining ring is secured against rotation in the circumferential direction or in a form-fitting manner by forming axially continuous holes in the respective retaining ring, in particular which are arranged radially outside the shims, wherein connecting elements, in particular pins, in particular notched pins, protrude through the holes, the connecting elements protruding into axial bores, in particular the axial bores being introduced into a centering collar of a cover part or into a shaft collar of the shaft, in particular wherein the holes are radially spaced from the shims, in particular, wherein the holes are in particular evenly spaced apart from one another in the circumferential direction and/or are arranged at the same radial distance.
  • the advantage here is that a simple anti-twist protection is achieved and thus a long service life, since migration out or in is prevented, especially when the transverse force load fluctuates.
  • the first retaining ring is secured against rotation in the circumferential direction or in a form-fitting manner, in that additionally or alternatively at least the first retaining ring, in particular on its radial outer circumference, has at least one radially directed elevation which extends into a, in particular corresponding, radially directed recess, in particular Groove, in particular axial groove, of the housing part projects into it, in particular wherein the area covered in the axial direction by the radially directed recess comprises the area covered by the disk pack in the axial direction.
  • the advantage here is that an anti-rotation device can be achieved with little effort, i.e. the shape of the retaining ring and a first axial groove in the housing part.
  • first and second retaining rings of the disc pack are of identical design, a further axial groove must be provided in the housing part, which has a circumferential angular distance from the first axial groove, which corresponds to the angle of rotation of the bayonet lock.
  • adhesive is arranged in or on the disc pack, in particular to prevent rotation of the disc pack and/or the shims.
  • the first retaining ring has a greater axial wall thickness, in particular thickness, than each of the shims.
  • the advantage here is that the disk pack has greater rigidity than a single shim.
  • the shims are therefore arranged in a protected manner and the disk pack can even be supported on a contact surface that is interrupted in the circumferential direction. The interruption is caused, for example, by a groove that is bridged by the disk pack.
  • the disk pack has a second retaining ring which is connected to the first retaining ring in a form-fitting manner, in particular by means of a bayonet connection, in particular wherein the second retaining ring has a greater axial wall thickness, in particular thickness, than each of the shims, in particular wherein the shims are axially between the two retaining rings are arranged.
  • the advantage here is that a quick and easy connection can be made in order to accommodate the shims in the washer package in a protective manner.
  • each of the retaining rings has axially outstanding, in particular circumferentially extending, spring regions, in particular tongue-shaped spring regions, on its radially inner edge region, in particular wherein the spring regions are connected to the remaining respective holding region at their respective front or rear end in the circumferential direction , wherein the spring regions of the first retaining ring are spaced apart from one another in the circumferential direction, wherein the spring regions of the second retaining ring are spaced apart from one another in the circumferential direction, wherein spring regions of the first retaining ring axially engage behind spring regions of the second retaining ring, in particular wherein the respective spring region of the first retaining ring protrudes in the axial direction and has a nose region that projects against the axial direction and/or wherein the respective spring region of the second retaining ring projects against the axial direction and has a nose region that projects in the axial direction, in particular wherein the spring regions are each arranged at the same radial distance and/or are evenly spaced from one another in
  • the axial direction is aligned parallel to the direction of the axis of rotation of the shaft and the radial direction and the circumferential direction are related to the direction of the axis of rotation of the shaft.
  • the area covered by the first retaining ring in the axial direction overlaps with the area covered by the second retaining ring in the axial direction.
  • the two retaining rings are arranged rotated by 180° relative to one another.
  • the ring has the outer ring, the bearing arrangement having a cover part which has a centering collar which projects into the bore of the housing part, the disk pack being arranged axially between the cover part, in particular between the centering collar of the cover part, and the outer ring , in particular wherein at least one of the retaining rings has a radially outwardly projecting elevation which extends into an axial groove of the housing part, in particular into one on the Bore arranged axial groove of the housing part, protrudes.
  • the advantage here is that the disc pack is axially limited by the cover part and is therefore fixed between the outer ring and the cover part.
  • the cover part, with its centering collar protruding into the bore defines an axial position at which the disk pack rests. Since this position can be different due to the manufacturing process, the choice of the number and axial thickness of the shims makes it possible to compensate for the axial width of the disk pack, so that the outer ring of the bearing can be limited to the intended axial position.
  • the ring is the inner ring, with the disk pack being arranged axially between a shaft collar of the shaft and the inner ring of the bearing, in particular with at least one of the retaining rings having a radially inwardly projecting elevation which projects into an axial groove of the shaft.
  • adhesive is arranged in or on the pane package.
  • the shims are designed as perforated disks, in particular the axial thickness of the shims is smaller than the axial thickness of the retaining rings.
  • the advantage here is that the retaining rings stiffen the disk pack and thus also enable bridging of circumferentially formed interruptions in the respective contact surface of the respective retaining ring on the side facing away from the shims.
  • the ring is the inner ring, with the axial bores being introduced into the shaft, in particular into the shaft collar of the shaft, in particular as blind bores.
  • the shaft collar has sufficient material strength to make the holes. This then makes a very compact design possible.
  • FIG. 1 shows a sectioned bearing arrangement of a transmission according to the invention in an oblique view, with a disk pack 1 being arranged on a bearing of the transmission.
  • a retaining ring 20 of the disk pack 1 is shown in an oblique view.
  • the disk package is shown exploded in an oblique view, with an area of the exploded disk package being shown schematically and enlarged.
  • the inner ring 6 rests on a step of the shaft 7 and is therefore axially limited relative to the shaft 7.
  • the disk pack 1 has shims 40, which are received axially on both sides by retaining rings 20 that can be connected to one another.
  • the shims 40 are designed as perforated disks and each have the same outside diameter and the same clear inside diameter.
  • the axial thickness, in particular wall thickness, of the shims 40 may be the same or different.
  • the thickness preferably has a value in the range from one tenth to five tenths of a millimeter, i.e. 0.1 mm to 0.5 mm.
  • the retaining rings 40 preferably have a greater axial thickness than the shims. The retaining rings 40 are then more stable and/or stiffer than the shims 20.
  • the retaining rings 40 have a smaller clear inside diameter than the shims 40.
  • the retaining rings 40 Preferably at a greater radial distance than the largest radial distance of the shims 40, the retaining rings 40 have axially through holes 22 spaced apart from one another in the circumferential direction, through which notched pins 8 are passed, which protrude into axial bores of the cover part 2 and through the holes of the two retaining rings 40 of the Disc pack 1 protrude through.
  • the disk pack 1 is thus secured against rotation relative to the cover part 2.
  • the two retaining rings 20 of the disc pack 1 are identical in construction, in particular identical to one another, although they are arranged in the disc pack 1 rotated by 180 ° to one another.
  • the first spring region 21 of a first retaining ring 40 can therefore be elastically deflected in the axial direction when a second spring region 21 of the second retaining ring 40 is pushed behind the first spring region 21 in the circumferential direction.
  • the second spring region 21 of the second retaining ring 20 then engages under the first spring region 21 of the first retaining ring 20.
  • each spring area 21 has an insertion bevel.
  • This positive connection caused by relative rotation of the two retaining rings 40 can also be referred to as a bayonet connection, in particular where the first retaining ring 40 functions as a first bayonet locking part and the second retaining ring 40 functions as a second bayonet locking part.
  • the respective spring area 21 is formed and shaped by punching and bending.
  • the spring region 21 is designed to be coherent with the remaining retaining ring 40, i.e. in one piece and/or in one piece.
  • the first retaining ring 40 rests on the outer ring of the bearing and the second retaining ring 40 rests on the cover part 2.
  • the contact surface of the second retaining ring 40 on the cover part 2 is not continuous in the circumferential direction, but rather interrupted, so that the bearing is well supplied with oil and the heated oil gives off heat on the inside of the cover part 2, in particular for dissipation from the cover part 2 to the environment .
  • the disk package 1 can be manufactured pre-completed. It is therefore designed to be movable, storable and transportable as a unit.
  • the groove is preferably designed as an axial groove on the inside of the bearing bore, i.e. the bore of the housing part that accommodates the outer ring of the bearing.
  • the area covered by the groove in the axial direction includes the area covered by the disk pack 1 in the axial direction.
  • the radial elevation can be achieved, for example, by a radially projecting nose region of the retaining ring 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)

Abstract

L'invention concerne un ensemble palier comprenant un arbre, une partie boîtier et un palier ; et un engrenage comprenant un palier, dans lequel : une bague externe du palier est logée dans un alésage de la partie boîtier ; une bague interne du palier est ajustée sur l'arbre ; un empilement de rondelles délimite axialement la bague ; et l'empilement de rondelles a une ou plusieurs rondelles de calage et une première bague de maintien.
EP23748069.4A 2022-09-12 2023-07-26 Ensemble palier comprenant un arbre, une partie boîtier et un palier, et engrenage comprenant un ensemble palier Pending EP4587725A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022003346 2022-09-12
PCT/EP2023/070733 WO2024056260A1 (fr) 2022-09-12 2023-07-26 Ensemble palier comprenant un arbre, une partie boîtier et un palier, et engrenage comprenant un ensemble palier

Publications (1)

Publication Number Publication Date
EP4587725A1 true EP4587725A1 (fr) 2025-07-23

Family

ID=87514071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23748069.4A Pending EP4587725A1 (fr) 2022-09-12 2023-07-26 Ensemble palier comprenant un arbre, une partie boîtier et un palier, et engrenage comprenant un ensemble palier

Country Status (4)

Country Link
EP (1) EP4587725A1 (fr)
CN (1) CN120019215A (fr)
DE (1) DE102023003078A1 (fr)
WO (1) WO2024056260A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL11261C (fr) 1965-05-04
US3516717A (en) * 1968-11-15 1970-06-23 Gen Motors Corp Bearing
DE10324621A1 (de) * 2003-05-28 2004-12-16 Robert Bosch Gmbh Elektrische Maschine
US20060067598A1 (en) * 2004-09-30 2006-03-30 Engle William B Anti-rotation bearing cup retainer
EP3919768A1 (fr) * 2020-06-03 2021-12-08 Flender GmbH Agencement, procédé de montage et de simulation d'un palier à roulement
AU2021311793B2 (en) 2020-07-24 2024-07-25 Sew-Eurodrive Gmbh & Co. Kg Method and system for producing a gear unit
EP3960984B1 (fr) 2020-08-25 2025-10-01 Aerzener Maschinenfabrik GmbH Moteur à piston rotatif ainsi que procédé de montage
AU2021365360B2 (en) 2020-10-20 2024-07-25 Sew-Eurodrive Gmbh & Co. Kg Gearing having a housing and a shaft unit

Also Published As

Publication number Publication date
CN120019215A (zh) 2025-05-16
DE102023003078A1 (de) 2024-03-14
WO2024056260A1 (fr) 2024-03-21

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