DK160900B

DK160900B - PIPE JOINT CONNECTION

Info

Publication number: DK160900B
Application number: DK369486A
Authority: DK
Inventors: Kurt Rufer
Original assignee: Sulzer Ag
Priority date: 1985-09-19
Filing date: 1986-08-01
Publication date: 1991-04-29
Also published as: EP0215318B1; JPS6267213A; DK369486A; DK369486D0; DK160900C; DE3668978D1; EP0215318A1; JPS63500162A

Description

DK 160900 BDK 160900 B

iin

Opfindelsen vedrører en rørledforbindelse, især til smøring af frem- og tilbagebevægede dele i en forbrændingsmotor, 5 med i det mindste to rør, som er svingbart forbundne ved hjælp af en ledtap.The invention relates to a pipe joint connection, in particular for lubricating reciprocating parts in an internal combustion engine, with at least two pipes which are pivotally connected by means of a joint pin.

Ved hidtidige rørledforbindelser er den hule ledtap fast forbundet med et rør i sin midte, medens ledtappen er åben 10 ved begge ender og løber i ledbøsninger ved enderne, som hver er forbundet med et rør. Denne teknik, som er omtalt for eksempel i FR-A 1 199 910, udviser dog den mangel, at der virker væsentlige aksiale trykkræfter på ledbøsningerne ved enderne, hvorved der udøves en udspilingsvirkning på 15 rørene ved enden, og der kan eventuelt opstå utætheder.In previous pipe joint connections, the hollow joint pin is fixedly connected to a pipe in its center, while the joint pin is open at both ends and runs in joint bushings at the ends, each of which is connected to a pipe. However, this technique, which is mentioned, for example, in FR-A 1 199 910, has the disadvantage that significant axial compressive forces act on the joint bushes at the ends, whereby a stretching effect is exerted on the tubes at the end, and leaks may occur.

Opfindelsens opgave er at forbedre den i indledningen nævnte rørledforbindelse således, at en utæthed med sikkerhed undgås.The object of the invention is to improve the pipe joint connection mentioned in the introduction so that a leak is certainly avoided.

2020

Til løsning af denne opgave tjener de i krav 1 anførte kendetegn. Underkravene vedrører fordelagtige videreudformnin-ger.To solve this task, the characteristics listed in claim 1 serve. The subclaims relate to advantageous further designs.

25 Herved opnås, at der på tætningerne i det væsentlige kun virker radiale kræfter, så at utæthed med sikkerhed undgås.25 Hereby it is achieved that on the seals essentially only radial forces act, so that leakage is certainly avoided.

Ifølge en særligt fordelagtig udførelse kan ledtappen derved udvise to fra hinanden adskilte hulrum med tilhørende 30 radialboringer, hvorved ledbøsningen gennem i det mindste to adskilte omkredsnoter står i forbindelse med tilsvarende radialboringer i hulrummene, hvorved der yderligere til hver not hører et rør, som er fastgjort til ledbøsningen, således at der er muliggjort mindst to fra hinanden adskil-35 te fluidstrømme.According to a particularly advantageous embodiment, the articulation pin can thereby have two spaced cavities with associated radial bores, whereby the articulated bushing through at least two separate circumferential grooves is connected to corresponding radial bores in the cavities, whereby a pipe which is attached is further attached to each groove. to the articulation so as to allow at least two spaced apart fluid flows.

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Derved kan fluidstrømmene udvise betydelige trykforskelle uden nogen som helst ugunstig indvirkning på rørledforbin-delsens løbeegenskaber.Thereby, the fluid flows can exhibit significant pressure differences without any adverse effect on the running properties of the pipe joint connection.

Den nærmere forklaring af opfindelsen sker ved hjælp af udførelseseksempler i forbindelse med vedlagte tegning. Den viser: 10 Fig. 1 et billede delvis i snit af en første udførel sesform af opfindelsen, fig. 2 snittet langs linien II-II i fig. 1, 15 fig. 3 en anden udførelsesform af opfindelsen.The further explanation of the invention takes place by means of exemplary embodiments in connection with the accompanying drawing. It shows: 10 FIG. 1 is a view partly in section of a first embodiment of the invention, fig. 2 is a section along the line II-II in FIG. 1, 15 fig. 3 shows another embodiment of the invention.

En ledtap 10 (fig. 1) med en gennemgående aksialboring 12 er på enderne lukket med gevindlukker 14, 16, og gennem radialboringer 18, 20 ved enderne forbundet med rør 22, 24 20 ved hjælp af skrueklemmeflanger 26, 28, hvis skruer er betegnet med 30. Rørene 22, 24 er ved hjælp af en plade 32 svejst sammen med hinanden.A hinge pin 10 (Fig. 1) with a through-going axial bore 12 is closed at the ends with threaded closures 14, 16, and through radial bores 18, 20 at the ends connected to pipes 22, 24 20 by means of screw clamping flanges 26, 28, the screws of which are designated with 30. The tubes 22, 24 are welded together by means of a plate 32.

På ledtappen 10 er der mellem rørene 22, 24 ved hjælp af to 25 leje- og tætningsbøsninger 34, 36 lejret en ledbøsning 38 med en omkredsnot 40. Denne står gennem radialboringer 42 i forbindelse med ledtappens 10 aksialboring 12. Til ledbøsningen 38 er fastgjort et rør 44, der står i forbindelse med omkredsnoten 40. Røret 44 kan således svinges i forhold 30 til rørene 22, 24.A joint bushing 38 with a circumferential groove 40 is mounted on the joint pin 10 between the pipes 22, 24 by means of two bearing and sealing bushings 34, 36. This is connected through radial bores 42 in connection with the axial bore 12 of the joint pin 10. tube 44 communicating with the circumferential groove 40. The tube 44 can thus be pivoted relative to the tubes 22, 24.

Under driften tilføres et flydende eller gasformet medium, for eksempel smøreolie, ifølge pilene 46, 48 gennem rørene 22, 24, hvorefter det gennemstrømmer boringerne 18, 20, 12, 35 42, såvel som omkredsnoten 40 og forlader røret 44 ifølgeDuring operation, a liquid or gaseous medium, for example lubricating oil, is supplied according to the arrows 46, 48 through the pipes 22, 24, after which it flows through the bores 18, 20, 12, 35 42, as well as the circumferential groove 40 and leaves the pipe 44 according to

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Udførelseseksemplet ifølge fig. 3 svarer til det ovenfor beskrevne med den forskel, at ledtappen 11 udviser to fra 5 hinanden adskilte aksialboringer 13, 15, som står i forbindelse med to adskilte omkredsnoter 40, 41 i ledbøsningen 39. Til omkredsnoten 41 hører derved et yderligere rør 45, som ved hjælp af en plade 33 er svejst til røret 44.The exemplary embodiment according to FIG. 3 corresponds to the one described above with the difference that the articulation pin 11 has two axial bores 13, 15 separated from each other, which are connected to two separate circumferential grooves 40, 41 in the articulated sleeve 39. The circumferential groove 41 thereby has a further tube 45, which by means of a plate 33 is welded to the tube 44.

10 Under driften er fluidstrømmene ifølge pilene 46, 50 henholdsvis 48, 52 fuldstændig adskilt. De kan derved udvise meget forskellige tryk uden nogen som helst ufordelagtig indflydelse på driftforholdene, som for eksempel klemning eller skævstilling af de bevægelige dele. Især undgås ufor-15 delagtige aksialkræfter på lejerne.During operation, the fluid flows according to the arrows 46, 50 and 48, 52, respectively, are completely separated. They can thereby exert very different pressures without any unfavorable influence on the operating conditions, such as squeezing or skewing of the moving parts. In particular, unfavorable axial forces on the bearings are avoided.

Det er underforstået, at medierne kan foreligge i forskellige faser, som for eksempel smøreolie og damp. Også pulverformede medier kan transporteres.It is understood that the media may be present in various phases, such as lubricating oil and steam. Powdered media can also be transported.

Claims

Pipe joint connection in particular for lubrication of reciprocating parts in an internal combustion engine with at least two pipes pivotally connected by means of a hollow pivot pin, characterized in that the pivot pin (10) is fixedly connected at each end to at least one pipe, a joint bushing (38) is mounted on the hinge pin between the tubes (22, 24) at the ends, whereby radial bores in the hinge pin (10) communicate with at least one groove (40) extending in the circumferential direction in the joint sleeve, that at least one pipe (44) is connected to the joint, which is connected to the groove, and that at least one bearing and / or sealing sleeve is arranged between the joint pin and the joint sleeve. 15

Pipe joint connection according to claim 1, characterized in that the joint pin has at least two spaced apart cavities with radial bores belonging to each cavity, that the joint bushing is connected by means of at least two separate circumferential grooves (40, 44) in corresponding radial bores in the cavities, and that each groove includes a tube (44, 45) which is attached to the articulation sleeve (39) in such a way as to allow two separate fluid flows.

Pipe joint connection according to claim 2, characterized in that the two pipes (44, 45) for the separate fluid flows are each connected to a separate pressure system, whereby the pressure systems exhibit different pressures.

Pipe joint connection according to Claim 1, characterized in that the pipes are fastened to the joint pin by means of screw clamping flanges (26, 28).

Pipe joint connection according to claim 1, characterized in that the joint pin at the ends is tightly closed with threaded closure 35 (14, 16).