DE19526890A1 - Fastener for plain bearing cover of machine - Google Patents

Fastener for plain bearing cover of machine

Info

Publication number
DE19526890A1
DE19526890A1 DE19526890A DE19526890A DE19526890A1 DE 19526890 A1 DE19526890 A1 DE 19526890A1 DE 19526890 A DE19526890 A DE 19526890A DE 19526890 A DE19526890 A DE 19526890A DE 19526890 A1 DE19526890 A1 DE 19526890A1
Authority
DE
Germany
Prior art keywords
bearing
bearing cover
screw
machine
bolt
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.)
Withdrawn
Application number
DE19526890A
Other languages
German (de)
Inventor
Wilhelm Dr Ing Hannibal
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Priority to DE19526890A priority Critical patent/DE19526890A1/en
Publication of DE19526890A1 publication Critical patent/DE19526890A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • 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
    • F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • 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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
    • F16M1/02—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines
    • F16M1/021—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines for housing crankshafts
    • F16M1/025—Assembling bearings in casings, e.g. having anchor bolts

Abstract

The fastener secures a plain bearing cover (14) to a bearing block and comprises bolts orthogonal to the bearing dividing plane and at least one bolt (28) transverse to the above mentioned bolts. The transverse bolt exerts a compression force onto the bearing cover. Pref. in the machine wall (24) is tapped a thread (26) for the transverse bolt. Between the latter and the bearing cover is inserted a shim (34) and the bolt may be secured against turning. There may be a seal between the bolt and machine wall.

Description

Die Erfindung betrifft die Befestigung eines Lagerdeckels eines Gleitlagers einer Maschine, insbesondere eines Hauptlagers im Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine, gemäß dem Oberbegriff des Patent­ anspruches 1.The invention relates to the attachment of a bearing cover of a plain bearing a machine, in particular a main bearing in the cylinder crankcase a reciprocating internal combustion engine, according to the preamble of the patent claim 1.

Eine derartige Befestigung zeigt beispielsweise die EP 553 069 A1, bei der bei einer V-Hubkolben-Brennkraftmaschine neben den senkrecht zur Tei­ lungsebene der Hauptlager vorgesehenen Schrauben beiderseits querver­ laufende Schrauben durch seitliche Maschinenwände hindurch in die Lager­ deckel eingeschraubt sind, die zur einer Querversteifung des jeweiligen La­ gerverbundes beitragen sollen. Zur Erzielung regulärer Spannungsvertei­ lungen im Lager und in den Maschinenwänden sind dabei enge Toleranzen zwischen den seitlichen Anlageflächen an den Maschinenwänden einerseits und an den Lagerdeckeln andererseits einzuhalten, die herstellungstech­ nisch problematisch sind.Such an attachment is shown, for example, in EP 553 069 A1, in which in a V-piston internal combustion engine in addition to the perpendicular to the part level of the main bearings provided on both sides crosswise running screws through the side machine walls into the bearings Lids are screwed in, which are used to stiffen the respective La should contribute. To achieve regular voltage distribution Lungs in the warehouse and in the machine walls are close tolerances between the lateral contact surfaces on the machine walls on the one hand and to adhere to the bearing caps on the other hand, the manufacturing tech niche are problematic.

Aufgabe der Erfindung ist es, bei geringeren Toleranzanforderungen geziel­ te Spannungsverteilungen in dem gattungsgemäßen Lagerverbund sicher­ zustellen.The object of the invention is to target with lower tolerance requirements voltage distributions in the generic warehouse system to deliver.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den weiteren Patentansprüchen angeführt.This object is achieved with the characterizing features of claim 1 solved. Advantageous developments of the invention are cited in the other claims.

Erfindungsgemäß werden die querverlaufenden Schrauben derart angeord­ net, daß sie definierte Druckkräfte auf den Lagerdeckel ausüben, wodurch die angestrebte Quersteifigkeit erzielt wird. Bevorzugt können die Schrau­ ben dabei in in den Maschinenwänden vorgesehenen Gewindebohrungen eingeschraubt sein. Im Gegensatz zum bekannten Stand der Technik wer­ den also nicht die seitliche Maschinenwand und der Lagerdeckel miteinan­ der verschraubt bzw. zusammengespannt, wobei beim Zusammentreffen ungünstiger Toleranzen ggf. sogar Zugkräfte an den Lagerdeckeln wirken können, jedenfalls aber undefinierte Spannungsverteilungen auftreten kön­ nen.According to the invention, the transverse screws are arranged in this way net that they exert defined pressure forces on the bearing cap, whereby the desired transverse stiffness is achieved. Preferably, the screw ben in the threaded holes provided in the machine walls be screwed in. In contrast to the known prior art who  not the side of the machine wall and the bearing cover the screwed or clamped together, when meeting unfavorable tolerances, possibly even tensile forces on the bearing caps can, but in any case undefined voltage distributions can occur nen.

Bevorzugt können die Druckkräfte der Schrauben über zwischengelegte Beilagscheiben übertragen werden, wodurch Setzungserscheinungen bei­ spielsweise bei Verwendung von Leichtmetall als Werkstoffe für das Ma­ schinengehäuse und den Lagerdeckel vermieden werden. Ferner ist es vorteilhaft, die Schrauben nach der Herstellung der definierten Druckkraft gegen Verdrehen zu sichern, beispielsweise mittels einer Kontermutter, durch Sicherungsbleche oder durch Klebstoffe. Ggf. kann es ferner ange­ zeigt sein, die Schrauben zur Vermeidung von Undichtigkeiten bzw. Austre­ ten von Schmieröl abzudichten.The compressive forces of the screws can preferably be interposed Washers are transmitted, causing subsidence for example when using light metal as materials for Ma machine housing and the bearing cover can be avoided. Furthermore, it is advantageous, the screws after producing the defined pressure secure against twisting, for example by means of a lock nut, by locking plates or by adhesives. Possibly. it can also be specified shows the screws to avoid leakage or leakage seal lubricating oil.

Ein Ausführungsbeispiel der Erfindung ist im folgenden mit weiteren Einzel­ heiten näher erläutert. Die schematische Zeichnung zeigt einen abschnitts­ weisen Querschnitt durch ein Hauptlager im Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine.An embodiment of the invention is in the following with further details explained in more detail. The schematic drawing shows a section have cross section through a main bearing in the cylinder crankcase Reciprocating internal combustion engine.

Das nur abschnittsweise dargestellte Zylinderkurbelgehäuse 10 einer Hub­ kolben-Brennkraftmaschine weist einen Lagerstuhl 12 auf, der in Verbindung mit einem Lagerdeckel 14 ein Hauptlager 16 definiert (die Lagerschalen sind nicht dargestellt), wobei die nicht ausgezeichnete rechte Hälfte der Zeich­ nung sich spiegelbildlich gleich der linken Hälfte vorzustellen ist.The only partially shown cylinder crankcase 10 of a reciprocating piston internal combustion engine has a bearing block 12 , which defines a main bearing 16 in conjunction with a bearing cover 14 (the bearing shells are not shown), the not excellent right half of the drawing being mirror image of the left Half is to be presented.

Der Lagerdeckel 14 ist an den Lagerstuhl 12 mittels zweier senkrecht zur Teilungsebene 18 verlaufender Schraubenpaare 20, 22 angeschraubt.The bearing cover 14 is screwed onto the bearing bracket 12 by means of two pairs of screws 20 , 22 running perpendicular to the division plane 18 .

In die seitlich jeweils nach unten über den Lagerstuhl 12 hinaus angeform­ ten Maschinenwände 24 des Zylinderkurbelgehäuses 10 sind in Höhe des Lagerdeckels 14 je Hauptlager 16 quer zu den Schrauben 20, 22 verlaufende Gewindebohrungen 26 eingearbeitet, in die jeweils Druckkräfte auf den La­ gerdeckel 14 ausübende Schrauben 28 eingeschraubt sind.In the laterally downward over the bearing frame 12 also th machine walls 24 of the cylinder crankcase 10 are machined at the height of the bearing cap 14 per main bearing 16 transverse to the screws 20 , 22 threaded holes 26 , in each of the compressive forces on the bearing cap 14 exerting screws 28 are screwed in.

Dabei ist jeweils zwischen die stufenförmig ausgeführte Anlagefläche 30 an den seitlichen Maschinenwänden 24 und der korrespondierenden Anlageflä­ che 32 des Lagerdeckels 14 eine Beilagscheibe 34 aus Stahl eingesetzt, die eine gleichmäßige Verteilung der Druckkräfte sicherstellt.A steel washer 34 is inserted between the step-shaped contact surface 30 on the side machine walls 24 and the corresponding contact surface 32 of the bearing cover 14 , which ensures a uniform distribution of the compressive forces.

Mittels einer Kontermutter 36 ist ferner die Schraube 28 gegen Verdrehen gesichert. Ein in einer Anfassung 38 der Gewindebohrung 26 eingelegter Dichtring 40 stellt zudem sicher, daß über die Schraube 26 kein Schmieröl austreten kann.The screw 28 is also secured against rotation by means of a lock nut 36 . A sealing ring 40 inserted in a socket 38 of the threaded bore 26 also ensures that no lubricating oil can escape via the screw 26 .

Nach der Montage des Lagerdeckels 14, der über Paßhülsen 42 an dem Lagerstuhl 12 zentriert ist, werden die beiden Schrauben 28 (es ist nur die linke Schraube 28 auf der Zeichnung ersichtlich) mit einer definierten Vor­ spannkraft bzw. Druckkraft den Lagerdeckel 14 angezogen und dann mittels der Kontermutter 36 gegen Verdrehen gesichert. Damit ist unabhängig von Fertigungstoleranzen an den seitlichen Maschinenwänden 24 bzw. an den Lagerdeckeln 14 eine gleichmäßige und definierte Spannungsverteilung des dargestellten Lagerverbundes sichergestellt.After mounting the bearing cover 14 , which is centered on the bearing bracket 12 via adapter sleeves 42 , the two screws 28 (only the left screw 28 can be seen in the drawing) are tightened with a defined pre-tensioning force or pressure force and then the bearing cover 14 secured against rotation by means of the lock nut 36 . This ensures that the bearing assembly shown is uniform and defined, regardless of the manufacturing tolerances on the side machine walls 24 or on the bearing caps 14 .

Claims (5)

1. Befestigung eines Lagerdeckels eines Gleitlagers einer Maschine, ins­ besondere eines Hauptlagers im Zylinderkurbelgehäuse einer Hubkol­ ben-Brennkraftmaschine, an einem Lagerstuhl, wobei im wesentlichen senkrecht zur Lagerteilungsebene angeordnete Schrauben und zumin­ dest eine quer zu diesen Schrauben durch eine seitliche Maschinenwand verlaufende Schraube vorgesehen sind, dadurch gekennzeichnet, daß die querverlaufende Schraube (28) eine Druckkraft auf den Lagerdeckel (14) ausübt.1. Attachment of a bearing cover of a plain bearing of a machine, in particular a main bearing in the cylinder crankcase of a Hubkol ben internal combustion engine, to a bearing bracket, screws arranged substantially perpendicular to the bearing pitch plane and at least one screw extending transversely to these screws through a lateral machine wall are provided , characterized in that the transverse screw ( 28 ) exerts a compressive force on the bearing cover ( 14 ). 2. Befestigung nach Anspruch 1, dadurch gekennzeichnet, daß in der Ma­ schinenwand (24) ein Gewinde (26) eingeschnitten ist, in dem die Schraube (28) abgestützt ist.2. Fastening according to claim 1, characterized in that in the machine wall ( 24 ) a thread ( 26 ) is cut in which the screw ( 28 ) is supported. 3. Befestigung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß zwischen der Schraube (28) und dem Lagerdeckel (14) eine Beilag­ scheibe (34) eingelegt ist.3. Fastening according to claims 1 and 2, characterized in that a washer ( 34 ) is inserted between the screw ( 28 ) and the bearing cover ( 14 ). 4. Befestigung nach einem oder mehreren der Ansprüche 1-3, dadurch gekennzeichnet, daß die Schraube (28) gegen Verdrehen gesichert ist.4. Fastening according to one or more of claims 1-3, characterized in that the screw ( 28 ) is secured against rotation. 5. Befestigung nach einem oder mehreren der Ansprüche 1-4, dadurch gekennzeichnet, daß die Schraube (28) in der Maschinenwand (24) ab­ gedichtet ist.5. Fastening according to one or more of claims 1-4, characterized in that the screw ( 28 ) in the machine wall ( 24 ) is sealed off.
DE19526890A 1995-07-22 1995-07-22 Fastener for plain bearing cover of machine Withdrawn DE19526890A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19526890A DE19526890A1 (en) 1995-07-22 1995-07-22 Fastener for plain bearing cover of machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19526890A DE19526890A1 (en) 1995-07-22 1995-07-22 Fastener for plain bearing cover of machine

Publications (1)

Publication Number Publication Date
DE19526890A1 true DE19526890A1 (en) 1997-01-23

Family

ID=7767583

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19526890A Withdrawn DE19526890A1 (en) 1995-07-22 1995-07-22 Fastener for plain bearing cover of machine

Country Status (1)

Country Link
DE (1) DE19526890A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999063216A1 (en) * 1998-06-03 1999-12-09 Miba Sintermetall Aktiengesellschaft Crankcase made of light metal for an internal combustion engine
DE102006033329A1 (en) * 2006-07-19 2008-01-31 Audi Ag Internal combustion engine crankshaft bearing has two bearing sections connected by bearing screw, and molded inlay part that is clamped with base part by separate mounting part in force-fit and form-fit manner
DE102007037461A1 (en) 2007-08-08 2008-07-10 Audi Ag Internal combustion engine e.g. skirt engine, has cylinder housing lower part comprising separate bearing cap of crankshaft bearing, which is connected with cylinder crankcase by angular screw connection

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE119922C (en) *
DE41447C (en) * E. WORTMANN in München Shaft bearing with four adjustable bearing shells connected by wedge pieces in between
DE1545C (en) * 1877-08-30 J. TOMLINSON in Black Hawk, Nordamerika Facilities on shaft bearings and the hanging arms for the same
US1130233A (en) * 1914-01-24 1915-03-02 Woods T B Sons Co Shaft-hanger.
US1692709A (en) * 1927-11-26 1928-11-20 Samuel A Shields Bearing boxing
DE549774C (en) * 1931-01-29 1932-05-02 Otto Mackensen Dr Transverse bearing
DE1781235U (en) * 1956-10-05 1959-01-15 Henschel & Sohn Gmbh ARRANGEMENT FOR SECURING CRANKSHAFT SLIDING BEARING SHELLS.
DE1947567A1 (en) * 1968-09-19 1970-03-26 Dunlop Co Ltd Connection device
CH620023A5 (en) * 1977-06-17 1980-10-31 Sulzer Ag
EP0553069A1 (en) * 1992-01-24 1993-07-28 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List V-type internal combustion piston engine
DE9402674U1 (en) * 1994-02-18 1994-06-16 Mage Ag Sheet metal screw

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE119922C (en) *
DE41447C (en) * E. WORTMANN in München Shaft bearing with four adjustable bearing shells connected by wedge pieces in between
DE1545C (en) * 1877-08-30 J. TOMLINSON in Black Hawk, Nordamerika Facilities on shaft bearings and the hanging arms for the same
US1130233A (en) * 1914-01-24 1915-03-02 Woods T B Sons Co Shaft-hanger.
US1692709A (en) * 1927-11-26 1928-11-20 Samuel A Shields Bearing boxing
DE549774C (en) * 1931-01-29 1932-05-02 Otto Mackensen Dr Transverse bearing
DE1781235U (en) * 1956-10-05 1959-01-15 Henschel & Sohn Gmbh ARRANGEMENT FOR SECURING CRANKSHAFT SLIDING BEARING SHELLS.
DE1947567A1 (en) * 1968-09-19 1970-03-26 Dunlop Co Ltd Connection device
CH620023A5 (en) * 1977-06-17 1980-10-31 Sulzer Ag
EP0553069A1 (en) * 1992-01-24 1993-07-28 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List V-type internal combustion piston engine
DE9402674U1 (en) * 1994-02-18 1994-06-16 Mage Ag Sheet metal screw

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NIEMANN,G. Maschinenelemente, Springer-Verlag, Berlin, Heidelberg, New York 1975, S.195,196 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999063216A1 (en) * 1998-06-03 1999-12-09 Miba Sintermetall Aktiengesellschaft Crankcase made of light metal for an internal combustion engine
US6357412B1 (en) 1998-06-03 2002-03-19 Miba Sintermetall Aktiengesellschaft Crankcase made of light metal for an internal combustion engine
DE102006033329A1 (en) * 2006-07-19 2008-01-31 Audi Ag Internal combustion engine crankshaft bearing has two bearing sections connected by bearing screw, and molded inlay part that is clamped with base part by separate mounting part in force-fit and form-fit manner
DE102006033329B4 (en) * 2006-07-19 2011-01-05 Audi Ag Crankshaft bearing of an internal combustion engine
DE102007037461A1 (en) 2007-08-08 2008-07-10 Audi Ag Internal combustion engine e.g. skirt engine, has cylinder housing lower part comprising separate bearing cap of crankshaft bearing, which is connected with cylinder crankcase by angular screw connection

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