WO2005064771A1 - Dispositif de fixation d'un palier a roulement - Google Patents

Dispositif de fixation d'un palier a roulement Download PDF

Info

Publication number
WO2005064771A1
WO2005064771A1 PCT/DE2004/002216 DE2004002216W WO2005064771A1 WO 2005064771 A1 WO2005064771 A1 WO 2005064771A1 DE 2004002216 W DE2004002216 W DE 2004002216W WO 2005064771 A1 WO2005064771 A1 WO 2005064771A1
Authority
WO
WIPO (PCT)
Prior art keywords
stop part
bolt
roller bearing
counter surface
bolt head
Prior art date
Application number
PCT/DE2004/002216
Other languages
German (de)
English (en)
Inventor
Uwe Maier
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2005064771A1 publication Critical patent/WO2005064771A1/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
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • a device for fastening a roller bearing in a housing part of a three-phase generator is known from German utility model DE 298 18 190 U1.
  • the housing part is essentially plate-shaped and has an opening towards its center, which is surrounded by an edge and forms a hub.
  • This hub serves to receive a roller bearing in which a rotor of the three-phase generator is rotatably mounted.
  • an inwardly projecting collar is formed in the hub on the housing part, which limits the mobility of the rolling bearing at least in one side
  • a holding plate is attached on the other side of the rolling bearing or its outer ring, which extends beyond the edge of the hub and thereby prevents the outer ring of the rolling bearing from moving in the other direction. This ensures that the rolling bearing cannot move in the axial direction.
  • the holding plate has several countersunk bores around a central opening, which is provided for the passage of the rotor shaft, which enable the holding plate to be fastened to the housing part by means of so-called countersunk screws.
  • These countersunk holes like the corresponding screw heads, are conical. It is disadvantageous in this embodiment that the holding forces acting in the bolt direction of the screw not only bend the holding plate, but at the same time the screw head is tracked according to the change in position of the countersunk hole in the holding plate due to a clearly defined position between the screw head and the conical countersink in the holding plate. This means that in the already weak or weakened area in the transition from the screw head to the screw shaft not only Tensile forces act, but at the same time bending forces. This aggregation of two different loads leads to a complex mechanical stress state in the transition area from the screw head to the screw shaft and thus to a difficult to define load, which is also particularly high.
  • the device according to the invention for fastening a rolling bearing with the features of the main claim has the advantage that the bending load of the screw or the... By the shape of the bolt head or its surface, which rests on the stop part
  • Bolt can be significantly reduced.
  • the stop part bends in accordance with a screw clamping force, the counter surface inclining in the stop part.
  • the ball joint principle allows the bolt head to slide in the stop part so that the bolt head does not follow the inclination of the stop part.
  • the corresponding counter surface of the stop part is shaped in such a way that it forms a generally tapering cavity.
  • the design that is more gentle on the bolt element comes into play particularly when the bolt head interacts with a correspondingly shaped counter surface.
  • the counter surface of the stop part is spherical in shape is so that both superimposed surfaces act as a ball joint.
  • the joint-forming elements can slide well against one another, so that the load is reduced.
  • Stop part has a larger radius than the surface of the bolt head.
  • Drilling tools can be manufactured relatively easily and in a known manner.
  • Figure 1 to Figure 4 shows a first embodiment of a corresponding device in different sectional views and views, Figure 5 a and
  • FIG. 5b shows the mode of operation of the first exemplary embodiment and its basic relationships in two partial sectional representations
  • FIG. 5c shows a third exemplary embodiment in the untensioned state. description
  • FIG. 1 shows a machine part 10, which is, for example, a housing part of a three-phase generator.
  • This machine part 10 shown in an axial section consists of an annular collar 13 which is integrally connected to a front part 19 via ribs 16.
  • the front part 19 extends radially inward and merges into a hub 22.
  • This hub 22 is essentially hollow-cylindrical and has a cylindrical jacket-shaped seat 25, which in this case has an inwardly directed annular collar 30 on its end 27 facing the outside of the machine part 10, which serves as a stop for a roller bearing 33 inserted in the seat 25 , In FIG. 1, only an outer ring 35 can be seen of this roller bearing 33.
  • roller bearing 33 in FIG. 1 is determined in its position to the left by the annular collar 30, it is provided that this roller bearing 33 is defined in its position to the right by means of a stop part 40 to be mounted.
  • the stop part 40 will be discussed in more detail later, here at this point it should be mentioned that this stop part 40 has an overall ring shape which has a plurality of holes, by means of which and specially provided bolt elements 43, this stop part 40 can be fastened to the hub 22.
  • FIG. 2 shows the fastening area of the solid part 10 separately, the illustration corresponding to FIG. 1 corresponding to a side view from the right.
  • Four struts 46 extend radially inward from the end part 19 shown in detail and end in the hub 22. As can be clearly seen, the stop part 40 is in the
  • axially bent tabs 52 extend axially, which serve to engage in corresponding recesses 55 in the hub 22 and thus to ensure a defined position of the stop part 40 relative to the hub 22.
  • the stop part 40 has in
  • the stop part 40 In the region of the struts 46, an edge thickened in the radial direction in order to be able to have sufficient space for through holes by means of which the stop part 40 and correspondingly the bolt elements 43 can be fastened to the hub 22.
  • the bolt elements 43 can only be recognized by their bolt heads 58.
  • the bolt heads 58 have corresponding transmission of torques Contours 61 on.
  • the stop part 40 largely covers an outer ring 65 of the roller bearing 33.
  • a cover disk 67 and an inner ring 70 can also be seen in the central round inner opening of the stop part 40.
  • Figure 3 shows a view of the hub 22 from the outside of the machine part 10.
  • the hub 22 largely covers with its ring collar 30 the outer ring 65, to which the inner ring 70 adjoins radially inward.
  • the bolt elements 43 are accommodated in through holes 73 by way of example.
  • FIG. 4 now shows a greatly enlarged view of the bolt element 43 in the hub
  • the bolt element 43 is designed as a screw and consists of the bolt head 58, to which the actual bolt 76 is connected.
  • the bolt 76 is divided into two sections, namely a cylindrical section 78, which is arranged between the bolt head 58 and the second section, a threaded section 81 provided with an external thread 80.
  • the bolt head 58 forms an undercut and is inserted in a hole 84 in the stop part 40.
  • the bolt head 58 has a surface 86 directed towards the stop part 40, with which the bolt head 58 rests in the hole 84 on the stop part 40.
  • the surface 86 is spherical in shape.
  • the corresponding counter surface 88 in the hole 84 of the stop member 40 forms a generally tapered cavity. According to the first exemplary embodiment, it is provided that the counter surface 88 is also spherical in shape.
  • a device for fastening a roller bearing 38 to a machine part 10 is thus provided overall, the machine part 10 preferably being a housing part with a hub 22.
  • the roller bearing 33 is fastened to the machine part 10 by means of a bearing ring.
  • the position of the bearing ring itself is determined on one side by means of a stop part 40, the stop part being held on the machine part 10 by at least one bolt element 43.
  • the bolt element 43 has an undercut forming and holding bolt head 58, which by means of a stop part
  • the bolt head 58 has a surface 86 which is spherical in shape.
  • the counter surface 88 has a larger radius than the surface 86 of the bolt head 58.
  • the counter surface 88 should have a further feature in all exemplary embodiments.
  • the counter surface 88 In the area in which the bolt 76 protrudes through the hole of the stop part 40, the counter surface 88 has an opening angle which can be described by the two intellectual legs which are directed from the counter surface 88 in the direction of the bolt 76. Taken together, both legs limit the opening angle.
  • the condition for this opening angle ⁇ is that it should be between 100 ° and 40 °. A size of approximately 120 ° has proven to be a particularly advantageous opening angle ⁇ , 120 ° of which are also included.
  • FIG. 4 also shows the still unstressed state between the stop part 40 and the hub 22.
  • the stop part 40 is still unloaded and lies more or less freely on the outer ring 65 of the roller bearing 33.
  • a gap 90 can be seen between the stop part 40 and the surface of the hub 22 facing the stop part 40.
  • this gap 90 in the tensioned state, leads to a bending of the stop part 40 starting from the outer ring 45 up to the outer edge of the stop part 40.
  • the bolt element 43 are to be avoided according to the invention.
  • the stop part 40 projects freely over the edge of the roller bearing 33.
  • FIG. 5a shows the radius ratios of surface 86 and counter surface 88. As can clearly be seen, the radius RF of the counter surface 88 is larger than the radius RS of the surface 86.
  • FIG. 5b clearly shows the advantage of the arrangement according to the invention, a state after the stop part 40 has been braced by the bolt element 43 being shown here.
  • the ball head or the bolt head 58 can slide in the trough or the hole in the stop part 40.
  • a lubricant is provided between the friction surfaces of the bolt head 58 and the counter surface 88.
  • a sliding wax coating is recommended as a lubricant.
  • a diameter of 4.4 mm is provided for the hole in the stop part 40, the bolt element 43 should have a diameter of approximately 4 mm. In other words, the hole in the stop part 40 has an approximately 10% larger diameter than the bolt element 43.
  • FIG. 5c shows a further exemplary embodiment for forming the hole 84 in the stop part 40. It should be noted at this point that the stop part 40 of the second exemplary embodiment is interchangeable with the stop part 40 of the first exemplary embodiment. As can clearly be seen, the counter surface 88 is not conical, but conical.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un dispositif de fixation d'un palier à roulement (33) sur une pièce de machine (10), le palier à roulement (33) étant de préférence logé dans un moyeu (22) d'un carter. Ledit palier à roulement (33) est fixé à la pièce de machine (10) par l'intermédiaire d'un anneau de palier dont la position est définie sur un côté par l'intermédiaire d'une butée (40). La butée (40) est fixée à la pièce de machine (10) par l'intermédiaire d'au moins un boulon (43). Ledit boulon (43) présente une tête de boulon (58) formant et maintenant une contre-dépouille s'appuyant contre la butée (40) au moyen d'une surface dirigée vers celle-ci. Selon l'invention, la tête de boulon (58) présente une surface (86) ayant la forme d'une enveloppe sphérique.
PCT/DE2004/002216 2003-12-30 2004-10-06 Dispositif de fixation d'un palier a roulement WO2005064771A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10361863.5 2003-12-30
DE10361863A DE10361863A1 (de) 2003-12-30 2003-12-30 Vorrichtung zur Befestigung eines Wälzlagers

Publications (1)

Publication Number Publication Date
WO2005064771A1 true WO2005064771A1 (fr) 2005-07-14

Family

ID=34706728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/002216 WO2005064771A1 (fr) 2003-12-30 2004-10-06 Dispositif de fixation d'un palier a roulement

Country Status (2)

Country Link
DE (1) DE10361863A1 (fr)
WO (1) WO2005064771A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003487A1 (de) * 2007-01-24 2008-07-31 Schaeffler Kg Furchschraube, Schraubverbindung und Spannvorrichtung für einen Zugmitteltrieb einer Brennkraftmaschine
DE102008054848A1 (de) * 2008-12-18 2010-07-01 Robert Bosch Gmbh Maschine mit Lagervorrichtung
WO2014130167A1 (fr) * 2013-02-19 2014-08-28 The Boeing Company Fixations à tête auto-orientable saillante à manchon dotées de caractéristiques de protection contre les effets électromagnétiques
WO2018011008A1 (fr) * 2016-07-12 2018-01-18 Fairchild Fasteners Europe - Camloc Gmbh Insert et procédé servant à connecter un raccordement électrique à une paroi

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE316881C (fr) *
US1352918A (en) * 1920-02-21 1920-09-14 William L Rohbock Fastening device
US4174148A (en) * 1977-12-16 1979-11-13 Amerace Corporation Electrical terminal clamp assembly
US4671583A (en) * 1983-02-24 1987-06-09 The Boeing Company Fastening device and method for composite structures
DE19802303C1 (de) * 1998-01-22 1999-07-29 Bosch Gmbh Robert Elektrische Maschine
DE20012107U1 (de) * 2000-07-13 2001-11-29 Altenloh, Brinck & Co Gmbh & Co Kg Verbindungselement
US6409390B1 (en) * 2000-10-31 2002-06-25 Itt Manufacturing Enterprises, Inc. Compact, precision duplex bearing mount for high vibration environments
DE10103418A1 (de) * 2001-01-26 2002-08-01 Zahnradfabrik Friedrichshafen Schraubverbindung mit Senkschraube
DE10134982A1 (de) * 2001-07-18 2003-02-06 Bosch Gmbh Robert Elektrische Maschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512446A (en) * 1968-10-07 1970-05-19 Hi Shear Corp Countersink fasteners
SE330462B (fr) * 1968-12-06 1970-11-16 Skf Svenska Kullagerfab Ab
AU5265479A (en) * 1978-11-13 1980-05-22 Tubemakers Of Australia Limited Axle tube construction

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE316881C (fr) *
US1352918A (en) * 1920-02-21 1920-09-14 William L Rohbock Fastening device
US4174148A (en) * 1977-12-16 1979-11-13 Amerace Corporation Electrical terminal clamp assembly
US4671583A (en) * 1983-02-24 1987-06-09 The Boeing Company Fastening device and method for composite structures
DE19802303C1 (de) * 1998-01-22 1999-07-29 Bosch Gmbh Robert Elektrische Maschine
DE20012107U1 (de) * 2000-07-13 2001-11-29 Altenloh, Brinck & Co Gmbh & Co Kg Verbindungselement
US6409390B1 (en) * 2000-10-31 2002-06-25 Itt Manufacturing Enterprises, Inc. Compact, precision duplex bearing mount for high vibration environments
DE10103418A1 (de) * 2001-01-26 2002-08-01 Zahnradfabrik Friedrichshafen Schraubverbindung mit Senkschraube
DE10134982A1 (de) * 2001-07-18 2003-02-06 Bosch Gmbh Robert Elektrische Maschine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003487A1 (de) * 2007-01-24 2008-07-31 Schaeffler Kg Furchschraube, Schraubverbindung und Spannvorrichtung für einen Zugmitteltrieb einer Brennkraftmaschine
DE102008054848A1 (de) * 2008-12-18 2010-07-01 Robert Bosch Gmbh Maschine mit Lagervorrichtung
WO2014130167A1 (fr) * 2013-02-19 2014-08-28 The Boeing Company Fixations à tête auto-orientable saillante à manchon dotées de caractéristiques de protection contre les effets électromagnétiques
US9169862B2 (en) 2013-02-19 2015-10-27 The Boeing Company Self-aligning sleeved protruding head fasteners with electromagnetic effect protection features
CN105008225A (zh) * 2013-02-19 2015-10-28 波音公司 具有电磁效应保护特性的自对准套筒式凸头
JP2016511816A (ja) * 2013-02-19 2016-04-21 ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ 電磁効果防御特性を有する自己整列型スリーブ付き突出ヘッド締め具
WO2018011008A1 (fr) * 2016-07-12 2018-01-18 Fairchild Fasteners Europe - Camloc Gmbh Insert et procédé servant à connecter un raccordement électrique à une paroi
KR20190018000A (ko) * 2016-07-12 2019-02-20 페어차일드 패스너스 유럽 - 캠록 게엠베하 전기 커넥터를 벽에 연결하기 위한 인서트 및 방법
AU2017295482A2 (en) * 2016-07-12 2019-09-19 Fairchild Fasteners Europe - Camloc Gmbh Insert and method for connecting an electrical connection to a wall
AU2017295482B2 (en) * 2016-07-12 2019-09-19 Fairchild Fasteners Europe - Camloc Gmbh Insert and method for connecting an electrical connection to a wall
AU2017295482C1 (en) * 2016-07-12 2020-02-13 Fairchild Fasteners Europe - Camloc Gmbh Insert and method for connecting an electrical connection to a wall
KR102134701B1 (ko) 2016-07-12 2020-07-17 페어차일드 패스너스 유럽 - 캠록 게엠베하 전기 커넥터를 벽에 연결하기 위한 인서트 및 방법
US11085481B2 (en) 2016-07-12 2021-08-10 Fairchild Fasteners Europe - Camloc Gmbh Insert and method for connecting an electrical connection to a wall

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Publication number Publication date
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