EP1922486B1 - Method for assembling a crankshaft drive and piston compressor - Google Patents

Method for assembling a crankshaft drive and piston compressor Download PDF

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Publication number
EP1922486B1
EP1922486B1 EP06777064.4A EP06777064A EP1922486B1 EP 1922486 B1 EP1922486 B1 EP 1922486B1 EP 06777064 A EP06777064 A EP 06777064A EP 1922486 B1 EP1922486 B1 EP 1922486B1
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EP
European Patent Office
Prior art keywords
crankshaft
connecting rod
crankcase
cylinder
piston compressor
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Not-in-force
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EP06777064.4A
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German (de)
French (fr)
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EP1922486A1 (en
Inventor
Michael Hartl
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Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/14—Provisions for readily assembling or disassembling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft

Definitions

  • the present invention relates to a method for assembling a crank mechanism of a reciprocating compressor.
  • Reciprocating compressors of the type of interest here are usually coupled to a drive unit - usually an electric motor - to compress air via the rotary motion generated hereby by means of a crank mechanism and an oscillating linear motion piston.
  • the piston compressor formed by the piston compressor with drive unit is used for example in the vehicle sector for the production of compressed air, which is required for the operation of vehicle-specific pressure medium units - such as brakes or the like.
  • crank mechanism i. for mounting the at least one connecting rod on the crankshaft
  • either split the crankcase so that the pre-assembled crankshaft with connecting rod can be used herein;
  • crankcase or the connecting rod are designed to be split, a correspondingly high manufacturing outlay is required by milling contact surfaces of the crankcase or the connecting point on the connecting rod end. Furthermore, for the screw corresponding Gewindebohnmgen be made and additional components, such as seals and screws are necessary.
  • crankshaft is threaded directly into the drive region of a compressor piston.
  • the advantage of the solution according to the invention lies in the fact that a division of crankcase and / or connecting rod for mounting the crank mechanism can be completely eliminated.
  • the end of the crankshaft in the opening of the connecting rod in the interior of the crankcase, the cylinder opening and the crankshaft bearing opening are to be dimensioned accordingly.
  • the crankshaft bearing opening is provided for insertion of the crankshaft bearings.
  • a crankpin bearing provided between the connecting rod bearing seat of the crankshaft and the connecting rod end of the connecting rod to be premounted on the crankshaft or connecting rod before the crankshaft and connecting rod are introduced into the interior of the crankcase.
  • the Hubzapfenlager may be formed as a permanently lubricated roller bearing.
  • a particularly simple assembly results when the Hubzapfenlager is first mounted on the connecting rod, before the connecting rod including Hubzapfenlager is mounted on the bearing inner ring of the Hubzapfenlagers on the crankshaft.
  • the other alternative variant may be useful.
  • balance weights - if necessary - are releasably secured to the crankshaft and preferably can be fixed thereto by screwing.
  • the one-piece crankcase is manufactured by prototyping. It can consist of cast iron or aluminum alloys. Through the production by prototyping, in particular casting - and the minimal machining reworking, which is required in view of the solution according to the invention, the crankcase can be produced in a particularly simple manner.
  • the in Fig.1 Dry running piston compressor shown consists essentially of an undivided crankcase 1, at the cylinder opening 2, a cylinder 3 is mounted for a piston 4 axially guided therein.
  • the cylinder 4 is closed by a cylinder head 5.
  • a crankshaft 6 is arranged rotatably mounted within the crankcase 1.
  • the crankshaft 6 acts via a Hubzapfenlager 7 formed in the manner of a permanently lubricated bearing to form a crank mechanism with a one-piece, undivided connecting rod 8 via the connecting rod 9 together.
  • the crankshaft 6 carries dynamic balance weights 10 bolted thereto.
  • the one-piece connecting rod 8 is first introduced through the cylinder opening 2 of the likewise one-piece crankcase 1 for mounting the crank mechanism. Thereafter, the crankshaft 6 is inserted through such a crankshaft bearing opening 11 of the crankcase 1 in the interior, that the inner end of the crankshaft 6 within the crankcase 1 in the opening of the connecting rod 9 of the connecting rod 8 can be threaded.
  • the crankshaft 6 is shaped such that the opening of the connecting rod 9, which is already preassembled with the - not shown here - Hupzapfenlager, can thread to the big end bearing seat of the crankshaft 6.
  • FIG. 3 is the connecting rod 8 in the fully assembled position relative to the crankshaft 6, wherein the connecting rod 8 via the crank pin bearing with the crankshaft 6 forms a press connection.
  • This press connection is realized by appropriate fit dimensions of the components to be connected.
  • the connecting rod 8 can be heated so that it expands temporarily;
  • the crankshaft 6 can also be cooled, so that the material contracts slightly during assembly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Montage eines Kurbeltriebs eines Kolbenverdichters.The present invention relates to a method for assembling a crank mechanism of a reciprocating compressor.

Kolbenverdichter der hier interessierenden Art sind gewöhnlich mit einer Antriebseinheit - meist einem Elektromotor - gekoppelt, um über die hiermit erzeugte Drehbewegung mittels Kurbeltrieb und einem eine oszillierende lineare Bewegung ausführenden Kolben Luft zu komprimieren. Der aus dem Kolbenverdichter mit Antriebseinheit gebildete Kolbenkompressor wird beispielsweise im Fahrzeugbereich zur Erzeugung von Druckluft eingesetzt, die zum Betrieb von fahrzeugspezifischen Druckmittelaggregaten - wie Bremsen oder dergleichen - benötigt wird.Reciprocating compressors of the type of interest here are usually coupled to a drive unit - usually an electric motor - to compress air via the rotary motion generated hereby by means of a crank mechanism and an oscillating linear motion piston. The piston compressor formed by the piston compressor with drive unit is used for example in the vehicle sector for the production of compressed air, which is required for the operation of vehicle-specific pressure medium units - such as brakes or the like.

Aus der DE 101 09 514 C 1 der Anmelderin geht ein gattungsgemäßer Kolbenverdichter hervor. Das hier nach Art eines trockenlaufenden Kolbenverdichters ausgebildete Aggregat weist eine in einem Kurbelgehäuse drehbar gelagerte Kurbel auf, die über ein kurbelwellenseitiges Wälzlager mit dem Pleuelkopf des Pleuels in Verbindung steht. Am gegenüberliegenden Pleuelauge des Pleuels ist ein Kolben mittels Kolbenbolzen schwenkbar am Pleuel gelagert. Insgesamt bildet diese Anordnung den Kurbeltrieb. Der Kolben ist axial bewegbar innerhalb eines ihn umgebenden Zylinders untergebracht. Der Zylinder ist im Bereich einer Zylinderöffnung des Kurbelgehäuses hieran durch Schraubbolzen befestigt. An dem der Zylinderöffnung gegenüberliegenden Ende des Zylinders ist dieser mit einem Zylinderkopf verschlossen. Der Zylinderkopf enthält Ein- und Auslassventile zum Ansaugen bzw. Ausstoßen der komprimierten Luft.From the DE 101 09 514 C 1 of the Applicant shows a generic reciprocating compressor. The designed here in the manner of a dry-running piston compressor unit has a rotatably mounted in a crankcase crank, which is connected via a crankshaft-side bearings with the connecting rod of the connecting rod. At the opposite connecting rod eye of the connecting rod a piston is pivotally mounted by means of a piston pin on the connecting rod. Overall, this arrangement forms the crank mechanism. The piston is housed axially movable within a cylinder surrounding it. The cylinder is attached thereto in the region of a cylinder opening of the crankcase by bolts. At the opposite end of the cylinder opening of the cylinder this is closed with a cylinder head. The cylinder head contains inlet and outlet valves for sucking in or expelling the compressed air.

Wie allgemein bekannt ist, wird zur Montage des Kurbeltriebs, d.h. zur Montage des mindestens einen Pleuels auf der Kurbelwelle, entweder das Kurbelgehäuse geteilt ausgeführt, damit die vormontierte Baueinheit Kurbelwelle mit Pleuel hierin eingesetzt werden kann; zum Anderen ist es auch möglich - wie beim vorstehend zitierten Stand der Technik - das Pleuel im Bereich des Pleuelkopfes zu teilen, so dass nach Einsetzen der Kurbelwelle in ein dann einstückiges, d.h. geschlossenes Kurbelgehäuse, die Montage des Pleuels an der Kurbelwelle erfolgen kann. Diese Montage erfolgt meist unter Zuhilfenahme von Schrauben. Da beide bekannte, alternative Montageverfahren des Standes der Technik voraussetzen, dass das Kurbelgehäuse oder das Pleuel geteilt ausgeführt werden, ist ein entsprechend hoher fertigungstechnischer Aufwand durch Fräsen von Anlageflächen des Kurbelgehäuses bzw. der Verbindungsstelle am Pleuelkopf erforderlich. Des Weiteren sind für die Schraubverbindungen entsprechende Gewindebohnmgen anzufertigen und zusätzliche Bauteile, wie Dichtungen und Schrauben sind notwendig.As is well known, for mounting the crank mechanism, i. for mounting the at least one connecting rod on the crankshaft, either split the crankcase so that the pre-assembled crankshaft with connecting rod can be used herein; On the other hand, it is also possible - as in the cited prior art - to divide the connecting rod in the area of the connecting rod, so that after insertion of the crankshaft in a then one-piece, i. Closed crankcase, the assembly of the connecting rod to the crankshaft can be done. This assembly is usually done with the help of screws. Since both known, alternative assembly methods of the prior art assume that the crankcase or the connecting rod are designed to be split, a correspondingly high manufacturing outlay is required by milling contact surfaces of the crankcase or the connecting point on the connecting rod end. Furthermore, for the screw corresponding Gewindebohnmgen be made and additional components, such as seals and screws are necessary.

Aus der CH381256 ist weiter ein Verfahren bekannt wobei eine Kurbelwelle direkt in dem Antriebsbereich eines Verdichterkolbens eingefädelt wird.From the CH381256 Further, a method is known wherein a crankshaft is threaded directly into the drive region of a compressor piston.

Es ist daher die Aufgabe der vorliegenden Erfindung, den fertigungstechnischen Aufwand zu minimieren und eine vereinfachte Montage eines Kurbeltriebs für einen Kolbenverdichter zu ermöglichen.It is therefore an object of the present invention to minimize the manufacturing effort and to allow a simplified assembly of a crank mechanism for a reciprocating compressor.

Die Aufgabe wird mit einem erfindungsgemäß ausgebildeten Kolbenverdichter gemäß Anspruch 1 gelöst.The object is achieved with a piston compressor designed according to the invention according to claim 1.

Die Erfindung schließt die verfahrenstechnische Lehre ein, dass zur Montage eines Kurbeltriebs, umfassend eine Kurbelwelle und mindestens ein Pleuel in ein Kurbelgehäuse folgende Verfahrensschritte ausgeführt werden:

  • ein einstückiges Pleuel wird durch eine Zylinderöffnung des einstückigen Kurbelgehäuses eingeführt,
  • eine Kurbelwelle wird durch eine Kurbelwellenlageröffnung des einstückigen Kurbelgehäuses eingeführt,
  • die Kurbelwelle wird mit dem im Innenraum des Kurbelgehäuses liegenden Endes in eine Öffnung des Pleuelkopfes eingefädelt,
  • bis sich das Pleuel in der montierten Position relativ zur Kurbelwelle befindet und hierbei mit dem Pleuellagersitz der Kurbelwelle eine Pressverbindung bildet.
The invention includes the procedural teaching that for assembling a crank mechanism, comprising a crankshaft and at least one connecting rod in a crankcase, the following method steps are carried out:
  • a one-piece connecting rod is inserted through a cylinder opening of the one-piece crankcase,
  • a crankshaft is inserted through a crankshaft bearing opening of the one-piece crankcase,
  • the crankshaft is threaded with the end located in the interior of the crankcase in an opening of the connecting rod,
  • until the connecting rod is in the mounted position relative to the crankshaft and in this case forms a press connection with the connecting rod bearing seat of the crankshaft.

Der Vorteil der erfindungsgemäßen Lösung liegt insbesondere darin, dass eine Teilung von Kurbelgehäuse und/oder Pleuel zur Montage des Kurbeltriebs völlig entfallen kann. Zum erfindungsgemäßen Einfädeln des Endes der Kurbelwelle in die Öffnung des Pleuelkopfes im Innenraum des Kurbelgehäuses sind die Zylinderöffnung sowie die Kurbelwellenlageröffnung entsprechend zu dimensionieren. Die Kurbelwellenlageröffnung ist vorgesehen zum Einsetzen der Kurbelwellenlager. Bei der Gestaltung der Kurbelwelle ist das Erfordernis der Einfädelmontage natürlich zu beachten. Durch die Einsparung eines geteilten Kurbelgehäuses und/oder eines geteilten Pleuels nimmt der erfindungsgemäße Kolbenverdichter insgesamt weniger Bauraum ein, da weniger Material für Gewindebohrungen im Kurbelgehäuse erforderlich ist. Im Übrigen ist es einerlei, ob zuerst die Kurbelwelle durch die Kurbelwellenöffnung in den Innenraum des Kurbelgehäuses eingeführt wird oder das Pleuel durch die Zylinderöffnung.The advantage of the solution according to the invention lies in the fact that a division of crankcase and / or connecting rod for mounting the crank mechanism can be completely eliminated. For threading according to the invention the end of the crankshaft in the opening of the connecting rod in the interior of the crankcase, the cylinder opening and the crankshaft bearing opening are to be dimensioned accordingly. The crankshaft bearing opening is provided for insertion of the crankshaft bearings. When designing the crankshaft, of course, the need for Einfädelmontage is observed. By saving a split crankcase and / or a split connecting rod piston compressor of the invention takes a total of less space, since less material for threaded holes in the crankcase is required. Incidentally, it does not matter whether first the crankshaft is inserted through the crankshaft opening into the interior of the crankcase or the connecting rod through the cylinder opening.

Gemäß einer weiteren, die Erfindung verbessernden Maßnahme ist vorgesehen, dass ein zwischen Pleuellagersitz der Kurbelwelle und Pleuelkopf des Pleuels vorgesehenes Hubzapfenlager auf der Kurbelwelle oder am Pleuel vormontiert wird, ehe Kurbelwelle und Pleuel in den Innenraum des Kurbelgehäuses eingeführt werden. Insbesondere wenn der Kolbenverdichter als trockenlaufender Verdichter ausgebildet ist, kann das Hubzapfenlager als dauergeschmiertes Wälzlager ausgebildet sein. Eine besonders einfache Montage ergibt sich, wenn das Hubzapfenlager zuerst am Pleuel montiert wird, ehe das Pleuel samt Hubzapfenlager über den Lagerinnenring des Hubzapfenlagers auf die Kurbelwelle montiert wird. Je nach den herrschenden Platzverhältnissen im Innenraum des Kurbelgehäuses kann jedoch auch die andere alternative Variante sinnvoll sein.According to a further measure improving the invention, provision is made for a crankpin bearing provided between the connecting rod bearing seat of the crankshaft and the connecting rod end of the connecting rod to be premounted on the crankshaft or connecting rod before the crankshaft and connecting rod are introduced into the interior of the crankcase. In particular, when the reciprocating compressor is designed as a dry-running compressor, the Hubzapfenlager may be formed as a permanently lubricated roller bearing. A particularly simple assembly results when the Hubzapfenlager is first mounted on the connecting rod, before the connecting rod including Hubzapfenlager is mounted on the bearing inner ring of the Hubzapfenlagers on the crankshaft. Depending on the prevailing space in the interior of the crankcase, however, the other alternative variant may be useful.

In vielen Fällen - insbesondere bei einzylindrigen Kolbenverdichtern - sind dynamische Ausgleichsgewichte an der Kurbelwelle vorgesehen, welche die Schwingneigung des Kurbeltriebs während der Arbeit vermindern. Derartige Gegengewichte würden jedoch das erfindungsgemäße Einfädeln des Pleuels auf die Kurbelwelle behindern. Daher wird vorgeschlagen, dass Ausgleichsgewichte - falls erforderlich - lösbar an der Kurbelwelle befestigt sind und vorzugsweise durch Anschrauben hieran fixiert werden können.In many cases - especially in one-cylinder reciprocating compressors - dynamic balancing weights are provided on the crankshaft, which the tendency to oscillate of the Reduce crank drive during work. However, such counterweights would hinder the inventive threading of the connecting rod to the crankshaft. Therefore, it is proposed that balance weights - if necessary - are releasably secured to the crankshaft and preferably can be fixed thereto by screwing.

Vorzugsweise wird das einstückige Kurbelgehäuse durch Urformen hergestellt. Es kann aus Grauguss oder Aluminiumlegierungen bestehen. Durch die Herstellung durch Urformen, insbesondere Gießen - und die minimale spanende Nachbearbeitung, welche im Hinblick auf die erfindungsgemäße Lösung erforderlich ist, lässt sich das Kurbelgehäuse in besonders einfacher Weise herstellen.Preferably, the one-piece crankcase is manufactured by prototyping. It can consist of cast iron or aluminum alloys. Through the production by prototyping, in particular casting - and the minimal machining reworking, which is required in view of the solution according to the invention, the crankcase can be produced in a particularly simple manner.

Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigt:

Fig.1
einen Längsschnitt durch einen einzylindrigen Kolbenverdichter,
Fig.2
eine Prinzipdarstellung eines Verfahrens zur Montage des Kurbeltriebs zu Beginn und
Fig.3
eine Prinzipdarstellung eines Verfahrens zur Montage des Kurbeltriebs zum Ende.
Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. It shows:
Fig.1
a longitudinal section through a single-cylinder piston compressor,
Fig.2
a schematic diagram of a method for assembling the crank mechanism at the beginning and
Figure 3
a schematic diagram of a method for assembling the crank mechanism to the end.

Der in Fig.1 dargestellte trockenlaufende Kolbenverdichter besteht im Wesentlichen aus einem ungeteilten Kurbelgehäuse 1, an dessen Zylinderöffnung 2 ein Zylinder 3 für einen hierin axial geführten Kolben 4 angebracht ist. Der Zylinder 4 ist mit einer Zylinderkopf 5 verschlossen. Innerhalb des Kurbelgehäuses 1 ist eine Kurbelwelle 6 drehend gelagert angeordnet. Die Kurbelwelle 6 wirkt über ein nach Art eines dauergeschmierten Wälzlagers ausgebildetes Hubzapfenlager 7 zur Bildung eines Kurbeltriebes mit einem einstückigen, ungeteilten Pleuel 8 über dessen Pleuelkopf 9 zusammen. Des Weiteren trägt die Kurbelwelle 6 hieran angeschraubte dynamische Ausgleichsgewichte 10.The in Fig.1 Dry running piston compressor shown consists essentially of an undivided crankcase 1, at the cylinder opening 2, a cylinder 3 is mounted for a piston 4 axially guided therein. The cylinder 4 is closed by a cylinder head 5. Within the crankcase 1, a crankshaft 6 is arranged rotatably mounted. The crankshaft 6 acts via a Hubzapfenlager 7 formed in the manner of a permanently lubricated bearing to form a crank mechanism with a one-piece, undivided connecting rod 8 via the connecting rod 9 together. Furthermore, the crankshaft 6 carries dynamic balance weights 10 bolted thereto.

Nach Fig.2, welche eine schematische Längsansicht des vorstehend beschriebenen Kolbenverdichters darstellt, wird zur Montage des Kurbeltriebs das einstückige Pleuel 8 zunächst durch die Zylinderöffnung 2 des ebenfalls einstückigen Kurbelgehäuses 1 eingeführt. Danach wird die Kurbelwelle 6 derart durch eine Kurbelwellenlageröffnung 11 des Kurbelgehäuse 1 in den Innenraum eingeführt, dass das innenliegende Ende der Kurbelwelle 6 innerhalb des Kurbelgehäuses 1 in die Öffnung des Pleuelkopfes 9 des Pleuels 8 einfädelbar ist. Zu diesem Zwecke ist die Kurbelwelle 6 derart geformt, dass sich die Öffnung des Pleuelkopfes 9, welche bereits mit dem - hier nicht weiter dargestellten - Hupzapfenlager vormontiert ist, bis zum Pleuellagersitz der Kurbelwelle 6 einfädeln lässt.To Fig.2 , Which is a schematic longitudinal view of the piston compressor described above, the one-piece connecting rod 8 is first introduced through the cylinder opening 2 of the likewise one-piece crankcase 1 for mounting the crank mechanism. Thereafter, the crankshaft 6 is inserted through such a crankshaft bearing opening 11 of the crankcase 1 in the interior, that the inner end of the crankshaft 6 within the crankcase 1 in the opening of the connecting rod 9 of the connecting rod 8 can be threaded. For this purpose, the crankshaft 6 is shaped such that the opening of the connecting rod 9, which is already preassembled with the - not shown here - Hupzapfenlager, can thread to the big end bearing seat of the crankshaft 6.

Gemäß Fig.3 befindet sich das Pleuel 8 in der fertigmontierten Position relativ zur Kurbelwelle 6, wobei das Pleuel 8 über das Kurbelzapfenlager mit der Kurbelwelle 6 eine Pressverbindung bildet. Diese Pressverbindung wird durch entsprechende Passungsmaße der zu verbindenden Bauteile realisiert. Zur Erleichterung der Montage kann das Pleuel 8 erwärmt werden, so dass es sich vorübergehend ausdehnt; weiterhin kann die Kurbelwelle 6 auch abgekühlt werden, so dass sich das Material während der Montage entsprechend geringfügig zusammenzieht.According to Figure 3 is the connecting rod 8 in the fully assembled position relative to the crankshaft 6, wherein the connecting rod 8 via the crank pin bearing with the crankshaft 6 forms a press connection. This press connection is realized by appropriate fit dimensions of the components to be connected. To facilitate assembly, the connecting rod 8 can be heated so that it expands temporarily; Furthermore, the crankshaft 6 can also be cooled, so that the material contracts slightly during assembly.

Die Erfindung beschränkt sich nicht auf das vorstehend beschriebene Ausführungsbeispiel. Es sind vielmehr auch Abwandlungen hiervon denkbar, welche vom Schutzbereich der nachfolgenden Ansprüche umfasst sind. So ist es beispielsweise auch möglich, dass mit dem erfindungsgemäßen Verfahren zur Montage des Kurbeltriebs auch ein zweizylindriger Kolbenverdichter montiert werden kann, so dass hierfür ebenfalls ungeteilte Pleuel sowie ein ungeteiltes Kurbelgehäuse eingesetzt werden kann. Falls bei der Lagerung der Kurbelwelle des zweizylindrigen Kurbelverdichters ein Zwischenlager zur Anwendung kommt, welches zwischen den beiden Kurbeltrieben auf der Kurbelwelle platziert ist, kann sich das Zwischenlager beim Einpressen an einer Zwischenwand des Kurbelgehäuses abstützen.The invention is not limited to the embodiment described above. On the contrary, modifications are conceivable which are encompassed by the scope of protection of the following claims. Thus, for example, it is also possible that with the method according to the invention for mounting the crank drive, a two-cylinder reciprocating compressor can be mounted, so that also undivided connecting rods and an undivided crankcase can be used for this purpose. If during storage of the crankshaft of the two-cylinder crank compressor, an intermediate bearing is used, which is placed between the two crank gears on the crankshaft, the intermediate bearing can be supported during pressing on an intermediate wall of the crankcase.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Kurbelgehäuse, ungeteiltCrankcase, undivided
22
Zylinderöffnungcylinder opening
33
Zylindercylinder
44
Kolbenpiston
55
Zylinderkopfcylinder head
66
Kurbelwellecrankshaft
77
KurbelzapfenlagerCrank pin bearing
88th
Pleuel, ungeteiltConnecting rod, undivided
99
Pleuelkopfsmall end
1010
Ausgleichsgewichtcounterweight
1111
KurbelwellenlageröffnungCrankshaft bearing opening

Claims (5)

  1. Piston compressor, comprising a crankshaft (6) and at least one connecting rod (8) with a crankshaft-side connecting rod head (9), which are located in a crankcase (1), wherein both the crankcase (1) and the at least one connecting rod (8) are of an undivided design to facilitate a mounting of the at least one connecting rod (8) on the single crankshaft (6) by threading in the interior of the crankcase (1), characterised in that a cylinder opening (2) for fitting a separate cylinder (3) is provided for the insertion of the connecting rod (8), and in that a crankshaft bearing opening (11) is provided for the insertion of the crankshaft (6) and the installation of a crankshaft bearing, the cylinder opening (2) and the crankshaft bearing opening (11) being dimensioned such that the connecting rod (8) and the crankshaft (6) can be inserted into the crankcase (1) obliquely.
  2. Piston compressor according to claim 1, characterised in that the crankshaft (6) is designed such that a stroke pin bearing (7) of the at least one connecting rod (8) can be threaded onto its connecting rod bearing seat from at least one end of the crankshaft (6).
  3. Piston compressor according to claim 1 or 2, characterised in that precisely one connecting rod (8) and one crankshaft (6) are provided for forming a single cylinder.
  4. Piston compressor according to claim 1 or 2, characterised in that precisely two connecting rods and one crankshaft are provided for forming a twin cylinder.
  5. Piston compressor according to claim 1, characterised in that the single-piece crankcase (1) is produced by means of primary shaping and is composed of grey cast iron or an aluminium alloy.
EP06777064.4A 2005-08-26 2006-08-25 Method for assembling a crankshaft drive and piston compressor Not-in-force EP1922486B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005040496A DE102005040496A1 (en) 2005-08-26 2005-08-26 Method for assembling a crank mechanism and reciprocating compressor
PCT/EP2006/008339 WO2007022987A1 (en) 2005-08-26 2006-08-25 Method for assembling a crankshaft drive and piston compressor

Publications (2)

Publication Number Publication Date
EP1922486A1 EP1922486A1 (en) 2008-05-21
EP1922486B1 true EP1922486B1 (en) 2016-08-03

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EP06777064.4A Not-in-force EP1922486B1 (en) 2005-08-26 2006-08-25 Method for assembling a crankshaft drive and piston compressor

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US (1) US20090217902A1 (en)
EP (1) EP1922486B1 (en)
JP (1) JP5027129B2 (en)
CN (1) CN100570155C (en)
DE (1) DE102005040496A1 (en)
WO (1) WO2007022987A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2161452A1 (en) 2008-09-09 2010-03-10 HAUG Kompressoren AG Piston compressor and method for installing or dismantling a piston compressor
US9856866B2 (en) 2011-01-28 2018-01-02 Wabtec Holding Corp. Oil-free air compressor for rail vehicles
KR101300871B1 (en) * 2011-06-03 2013-08-27 우수에이엠에스 주식회사 Air compressor of car brake
CN103573583B (en) * 2012-08-09 2016-04-13 珠海格力节能环保制冷技术研究中心有限公司 The assembling method of the housing assembly of compressor
DE102013101498A1 (en) * 2013-02-14 2014-08-28 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Crank drive arrangement of a preferably oil-free piston compressor

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Also Published As

Publication number Publication date
US20090217902A1 (en) 2009-09-03
CN101253328A (en) 2008-08-27
CN100570155C (en) 2009-12-16
JP2009506248A (en) 2009-02-12
JP5027129B2 (en) 2012-09-19
WO2007022987A1 (en) 2007-03-01
DE102005040496A1 (en) 2007-03-01
WO2007022987A8 (en) 2007-06-14
EP1922486A1 (en) 2008-05-21

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