DK167076B1 - CROSS HEAD AND Piston rod for a stamp motor - Google Patents
CROSS HEAD AND Piston rod for a stamp motor Download PDFInfo
- Publication number
- DK167076B1 DK167076B1 DK054691A DK54691A DK167076B1 DK 167076 B1 DK167076 B1 DK 167076B1 DK 054691 A DK054691 A DK 054691A DK 54691 A DK54691 A DK 54691A DK 167076 B1 DK167076 B1 DK 167076B1
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- DK
- Denmark
- Prior art keywords
- piston rod
- bearing
- oil
- bore
- crosshead
- Prior art date
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Classifications
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- 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
- F16C5/00—Crossheads; Constructions of connecting-rod heads or piston-rod connections rigid with crossheads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
i DK 167076 B1in DK 167076 B1
Opfindelsen angår et krydshoved og en stempelstang til en totakts stempelmotor omfattende et til plejIstangen fastgjort krydshovedleje af den art, der har en krydshovedtap med et midterafsnit, der over ho-5 vedsagelig hele sin længde er understøttet i lejet, og to endeafsnit, som er lejret i hver sin guidesko, og hvor lejet har en opadvendende udsparing, og krydsho-vedtappen har en flade til understøtning af undersiden af stempelstangens nedre ende, der passerer gennem ud-10 sparingen i lejet, samt en olietilgangsledning, som kan levere olie til en oliefordelingskanal i krydshovedet og er fastholdt i forhold til motorstativet i den ene ende.BACKGROUND OF THE INVENTION The present invention relates to a crosshead and piston rod for a two-stroke piston motor comprising a crosshead bearing fixed to the plunger rod having a crosshead pin having a center section substantially supported throughout its length in the bearing and two end sections which are mounted in each of its guide shoes, and where the bearing has an upwardly extending recess, and the cross-shaft socket has a surface for supporting the underside of the lower end of the piston rod passing through the recess in the bearing, as well as an oil supply line which can deliver oil to an oil distribution channel at the junction head and is restrained relative to the motor stand at one end.
Pra store langsomtgående forbrændingsmotorer, 15 såsom fremdrivningsanlæg i skibe eller stationære kraftproducerende anlæg, kendes en ældre motortype med et krydshoved, hvor krydshovedtappen er fastgjort til stempelstangen, ved at en nedefra og op gennem krydshovedtappen gående bolt er skruet op centralt i bunden af 20 stempelstangen. Krydshovedtappen er lejret i to separate krydshovedlejer, der ligger på hver sin side af stempelstangen, og som begge er fastgjort på plejlstan-gen, så at der mellem lejerne er plads til, at en olietilgangsledning er boltet fast midt på krydshovedtappen 25 mellem dennes to søleflader, og at en olieafgangsledning gennem en bæreflange er boltet fast midt på kryds-hovedtappens modsatte side og er sluttet til en sideværts olieafgangsåbning i stempelstangens nedre ende. Olieafgangsledningen er en kort rørstump med lille mas-30 se som leder olien ud til et opslidset rør, som opfanger olien. Dette ældre krydshoved har stor udstrækning i motorens længderetning, fordi det effektive lejeareal ligger helt på hver·sin side af stempelstangen.Large, large-scale internal combustion engines, such as propulsion systems in ships or stationary power generating plants, are known in an older type of engine with a crosshead, where the crosshead pin is attached to the piston rod by a bolt extending from the bottom and upward through the crosshead pin to the bottom of the piston. The cross-head pin is housed in two separate cross-head bearings, which are located on either side of the piston rod, and both are secured to the connecting rod, so that there is space between the bearings for an oil supply line to be bolted in the middle of the cross-head pin 25 between its two pillars. and that an oil discharge line through a support flange is bolted to the center of the opposite side of the cross-head pin and is connected to a lateral oil outlet opening at the lower end of the piston rod. The oil discharge line is a short tube stump with a small mass that directs the oil to a slotted tube which captures the oil. This older cross head has a large extension in the longitudinal direction of the motor because the effective bearing area is located completely on either side of the piston rod.
Nyere motorer er dimensioneret til næsten dob-35 belt så stort maksimaltryk i arbejdscylinderen, hvilket har medført så store krav til kraftoverføring gennem DK 167076 B1 2 krydshovedet, at dets underpart skal være gennemgående for at have tilstrækkeligt stort areal. Dette har ført til udvikling af et krydshoved af den førstnævnte art, hvor der mellem hvert endeafsnit og midterafsnittet er 5 udformet et overgangsafsnit med tilstrækkelig bredde til at tillade fastgørelse af en olietilgangsledning på overgangsafsnittet. Fra faste kanaler i motorstativet føres smøreolie til krydshovedet gennem olietilgangsledningen, som er fastgjort på det ene overgangs afsnit 10 mellem guideskoen og lejejt, hvorfra en skrå tilgangskanal og flere oliefordelingskanaler i krydshovedtappen leder olien til krydshovedets lejeflader og til oliekanaler i plej Istangen og stempelstangen. Olie ledes til stemplet gennem et i stempelstangen centralt rør og fra 15 stemplet gennem en uden om røret liggende ringformet kanal, der ved stempelstangens fod går over i to adskilte langsgående kanaler, som fortsætter over i krydshovedtappen, hvor de gennem vandrette kanaler munder ud i en fælles afgangsåbning beliggende i det andet 20 overgangsafsnit, hvortil er fastgjort en olieafgangsledning.Newer motors are sized to almost twice the maximum pressure in the working cylinder, which has resulted in such high demands on power transmission through the DK 167076 B1 2 crosshead that its lower part must be continuous to have sufficient space. This has led to the development of a crosshead of the former type, in which between each end section and the middle section 5 a transition section of sufficient width is formed to allow attachment of an oil supply line to the transition section. From fixed channels in the motor stand, lubricating oil is passed to the crosshead through the oil supply line, which is fixed on one transition section 10 between the guide shoe and the bearing head, from which an inclined access channel and several oil distribution channels in the crosshead pin lead the oil to the crosshead bearing surfaces and to the oil channel in the piston. Oil is passed to the plunger through a central tube in the plunger rod and from the plunger through an annular channel located around the plunger, which at the base of the plunger rod transitions into two separate longitudinal channels, which continue into the junctional head where they exit into a horizontal channel. common outlet opening located in the second 20 transition sections to which is attached an oil discharge line.
Olietilgangsledningen er både fastgjort i forhold til motorstativet og fastgjort i forhold til krydshovedet, og tilgangsledningen skal derfor være i 25 stand til at optage krydshovedets bevægelse i forhold til motorstativet, hvilket medfører, at olietilgangsledningen er af væsentlig kraftigere konstruktion og dermed tungere end den kendte olieafgangsledning, der havde form som en rørstump. Da olietilgangsledningen 30 har forholdsvis stor masse stilles der store krav til styrken af fastgørelsen, som dermed bliver pladskrævende. Den stempelstangsoptagende udsparing i krydshovedets øvre del er sædvenligvis udformet midt på lejet og er afgrænset i aksial retning af to lejeendedele, der 35 forløber rundt langs den øvre del af krydshovedtappens periferi.The oil supply line is both fixed with respect to the motor stand and fixed with respect to the cross head, and the access line must therefore be capable of recording the movement of the cross head with respect to the motor stand, which results in the oil supply line being of substantially stronger construction and thus heavier than the known oil discharge line. that had the shape of a tube butt. Since the oil supply line 30 has a relatively large mass, great demands are placed on the strength of the fastening, which thus becomes space consuming. The piston rod receiving recess in the upper part of the crosshead is usually formed in the middle of the bearing and is defined in the axial direction by two bearing end portions extending around the upper part of the crosshead pin periphery.
DK 167076 B1 3DK 167076 B1 3
Et formål med opfindelsen er at anvise et enklere krydshoved, som uden reduktion af lejets bæreevne har mindre udstrækning i motorens længderetning.An object of the invention is to provide a simpler crosshead which, without reducing the bearing capacity, has less extension in the longitudinal direction of the motor.
Dette opnås med et krydshoved, som ifølge opfin-5 delsen er ejendommeligt ved, at olietilgangsledningen leder til stempelstangens nedre ende ud for en tilgangsåbning, som gennem en kanal i stempelstangen er forbundet med fordelingskanalen i krydshovedet.This is accomplished by a crosshead which according to the invention is characterized in that the oil supply line leads to the lower end of the piston rod next to an inlet opening which is connected through a channel in the piston rod to the distribution channel in the crosshead.
Det har overraskende vist sig muligt at anbringe 1 o den forholdsvis kraftige og stive olietilgangsledning på stempelstangens nedre ende, så at overgangsafsnittet på krydshovedtappen kan sløjfes, og endeafsnittet kan sidde i direkte forlængelse af midterafsnittet, hvorved tappens aksiale længde er reduceret med overgangsaf-15 snittets længde. Den kortere krydshovedtap kan enten udnyttes til mindskning af motorens cylinderafstand og dermed af motorens totale indbygningslængde eller til øgning af midterafsnittets længde og dermed krydshovedets bæreareal. Da smøreolien tilføres til stempelstan-20 gen er tilgangskanaler fra tappens endeafsnit til fordelingskanalen ikke længere nødvendige, hvilket forenkler tappens fremstilling.Surprisingly, it has been found possible to place the relatively strong and rigid oil supply line on the lower end of the piston rod so that the transition section of the cross head pin can be looped and the end section can sit directly in extension of the center section, whereby the axial length of the pin section is reduced by length. The shorter crosshead pin can be utilized either to reduce the cylinder spacing of the motor and thus to the overall length of the motor or to increase the length of the center section and thus the crosshead bearing area. As the lubricating oil is supplied to the piston rod, inlet channels from the end portion of the pin to the distribution channel are no longer necessary, which simplifies the pin's manufacture.
Stempelstangen kan være udformet med en nedre flange med en sideflade, der i det væsentlige er belig-25 gende i udsparingen i lejet, og i dette tilfælde er olietilgangsledningen hensigtsmæssigt fastgjort på denne sideflade, så at krydshovedets samlede højde er upåvirket af tilgangsledningens anbringelse på stempelstangen, hvilket er af betydning for stempelstangspak-30 dåsens højdemæssige beliggenhed.The piston rod may be formed with a lower flange having a side face substantially located in the recess in the bearing, in which case the oil supply line is conveniently attached to this side surface so that the overall height of the crosshead is unaffected by the position of the supply line on the piston rod. , which is important for the height position of the piston rod pack 30.
Den stempelstangsoptagende udsparing i krydshovedets øvre del er sædvanligvis udformet midt på lejet og er afgrænset i aksial retning af to lejeendede-le, der forløber rundt langs den øvre del af krydsho-35 vedtappens periferi. Det er med opfindelsen erkendt, at det for krydshovedets dimensionering centrale krav om DK 167076 B1 4 størst muligt lejeareal kun gælder for lejets nedre del, og at lejearealet i lejets øverste del blot skal være tilstrækkelig til at holde krydshovedtappen på plads i lejet, hvis den tilhørende motorcylinder kører 5 kompressionsløs. De to lejeendedele har den nødvendige styrke til at holde tappen på plads, når den aksiale bredde af hver lejeendedel andrager fra 15 til 30% af bredden af lejefladen i lejets nedre del, idet den radiale højde af lejeendedelene tilpasses den valgte 10 bredde.The piston rod receiving recess in the upper part of the crosshead is usually formed in the middle of the bearing and is defined in the axial direction by two bearing end portions extending around the upper part of the crosshole adapter. It is recognized by the invention that the central requirement for the crosshead dimension of DK 167076 B1 4 the largest possible bearing area applies only to the lower part of the bearing, and that the bearing area in the upper part of the bearing must only be sufficient to hold the crosshead pin in place if associated motor cylinder runs 5 compressionless. The two bearing ends have the strength necessary to hold the pin in place when the axial width of each bearing end is from 15 to 30% of the width of the bearing surface in the lower part of the bearing, adjusting the radial height of the bearing parts to the selected width.
De små krav til lejeareal i krydshovedets øverste del kan udnyttes til at frembringe en god understøtning af det forholdsvis tunge olietilgangsrør, uden at understøtningen øger den aksiale længde af selve lets jet ved at krydshovedet i en foretrukken udførelsesform er ejendommeligt ved, at mindst en af lej eendedelene har en sådan udsparing i sin aksiale yderside, at et stykke af krydshovedtappens midterafsnit er frilagt, at en bærekonsol for olietilgangsledningen er fastgjort på 20 det frilagte stykke af krydshovedtappen, og at olietilgangsledningen er båret af konsollen og har et endestykke, der er fikseret ved olietilgangsåbningen (15) i stempelstangens nedre ende.The small bearing area requirements in the upper part of the crosshead can be utilized to provide a good support for the relatively heavy oil supply pipe, without the support increasing the axial length of the jet itself by the crosshead in a preferred embodiment being characterized in that at least one of the bearings the end portions have such a recess in their axial exterior that a piece of the center section of the crosshead pin is exposed, that a carrier bracket for the oil supply line is attached to the exposed piece of the crosshead pin and that the oil supply line is supported by the bracket and has an end piece attached the oil inlet opening (15) at the lower end of the piston rod.
Opfindelsen vedrører endvidere en stempelstang 25 til brug i forbindelse med et krydshoved af ovennævnte art, hvor stempelstangen har en central langsgående boring, som udmunder i undersiden af stempelstangen. Stempelstangen fremstilles som en separat enhed, der kan monteres på krydshovedtappen, og den er ifølge op-30 findelsen ejendommelig ved, at den centrale boring står i forbindelse med en nær bunden beliggende tværboring, der leder til en olieafgangsåbning i en sideflade bestemt til forbindelse med en olieafgangsledning, og at stempelstangen har en olietilgangskanal, som fra en 35 olietilgangsåbning i en sideflade bestemt til forbindelse med en olietilgangsledning fører til en udmunding DK 167076 B1 5 i undersiden af stempelstangen. Som følge af sin enkle udformning med en gennemgående central boring med en tværboring og en kanal, der kan udformes som en radial boring, der går over i en aksial boring, er stempel-5 stangen enkel at fremstille.The invention further relates to a piston rod 25 for use in connection with a crosshead of the above-mentioned type, wherein the piston rod has a central longitudinal bore which opens into the underside of the piston rod. The piston rod is manufactured as a separate unit which can be mounted on the crosshead pin, and according to the invention it is characterized in that the central bore communicates with a near bottom transverse bore which leads to an oil outlet opening in a side surface intended for connection with an oil discharge line, and that the piston rod has an oil supply channel which from an oil supply opening in a side surface intended for connection with an oil supply line leads to an outlet DK 167076 B1 5 at the bottom of the piston rod. Due to its simple design with a through-going central bore having a cross bore and a channel which can be designed as a radial bore which goes into an axial bore, the piston rod is easy to manufacture.
Tværboringen i stempelstangens fod kan hensigtsmæssigt være gennemgående fra olieafgangsåbningen til olietilgangsåbningen, så at foden er så symmetrisk som muligt, hvilket hindrer udbøjning af stempelstangen som 10 følge af uensartet stivhed i foden. Forbindelsen mellem tilgangs- og afgangskanalen kan så være afspærret af en bøsning, som understøtter et rør i den centrale boring og strækker sig op forbi tværboringen.Conveniently, the transverse bore in the foot of the piston rod can be continuous from the oil outlet opening to the oil inlet opening so that the foot is as symmetrical as possible, preventing bending of the piston rod due to uneven stiffness of the foot. The connection between the inlet and outlet ducts may then be blocked by a bushing which supports a tube in the central bore and extends upwardly beyond the transverse bore.
Udførelsesformer for opfindelsen beskrives her-15 efter nærmere med henvisning til den meget skematiske tegning, hvor fig. 1 i perspektivbillede illustrerer et krydshoved og det nederste stykke af en stempelstang ifølge opfindelsen, 20 fig. 2 et tværsnit gennem krydshovedet og stem pelstangen i fig. 1, fig. 3 et aksialt snit gennem det nederste stykke af en stempelstang ifølge opfindelsen, fig. 4 et tværsnit efter linien IV-IV i fig. 3.Embodiments of the invention will now be described in more detail with reference to the very schematic drawing, in which: FIG. 1 is a perspective view illustrating a crosshead and the lower piece of a piston rod according to the invention; FIG. 2 is a cross-sectional view of the crosshead and adjust the pelt rod of FIG. 1, FIG. 3 is an axial section through the lower part of a piston rod according to the invention; FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. Third
25 fig· 5 et ovenfra set billede af en anden udfø relsesform for et krydshovedleje og det nederste stykke af en stempelstang ifølge opfindelsen, hvor krydshoved-tappen for overskueligheds skyld er udeladt, fig. 6 et deltværsnit efter linien VI-VI gennem 30 plejlstangen og lejet i fig. 5, fig. 7 et tværsnit gennem det nederste stykke af stempelstangen, og fig. 8 stempelstangen i fig. 7 set nedefra.Fig. 5 is a top view of another embodiment of a cross head bearing and the lower piece of a piston rod according to the invention, where the cross head pin is omitted for clarity; 6 is a partial cross section along line VI-VI through the connecting rod and bearing of FIG. 5, FIG. 7 is a cross-section through the lower portion of the piston rod; and FIG. 8 shows the piston rod of FIG. 7 seen from below.
Det' i fig. l og 2 viste krydshoved omfatter en 35 krydshovedtap med et cylindrisk midterafsnit 1, der er drejeligt understøttet i et med plej Istangen 2 DK 167076 B1 6 fast forbundet krydshovedleje omfattende en underpart 3 og en overpart 4, og to cylindriske endeafsnit 5 til lejring i ikke viste guidesko for overføring af tværgående kræfter til motorens stativ. De to endeaf-5 snit 5 ligger i umiddelbar aksial forlængelse af midterafsnittet og er ud i ét stykke hermed.The FIG. 1 and 2 include a cross head pin with a cylindrical center section 1 pivotally supported in a cross-linked cross head bearing comprising a lower part 3 and an upper part 4, and two cylindrical end sections 5 for bearing in non showed guide shoes for transferring transverse forces to the motor stand. The two end sections 5 are located in the immediate axial extension of the middle section and are integral with one another.
Krydshovedtappens midterafsnit 1 har en opad-vendende plan flade 6, hvorpå stempelstangen 7 kan anbringes for fastboltning til tappen ved hjælp af fire 10 bolte 8, der går gennem fire boltehuller i en nedre fod eller flange 9 på stempelstangen.The center section 1 of the cross head pin has an upwardly facing plane 6 on which the piston rod 7 can be applied for fixed bolts to the pin by means of four 10 bolts 8 passing through four bolt holes in a lower foot or flange 9 of the piston rod.
Under motorens drift udfører plejIstangen 2 og lej eparterne 3, 4 en oscillerende bevægelse omkring krydshovedtappens længdeakse, og af hensyn til denne 1-5 bevægelse er lej eoverparten 4 udført med en gennemgående udsparing, der giver passage for stempelstangen 7. Udsparingen er nedadtil afgrænset af to aksialt gennemgående lejeafsnit 10, som i overpartens underside hver har tre opadgående gevindhuller for sammenboltning 20 med underparten. Ved at foretage s ammenbol tningen nedefra og op gennem underparten undgås opadragende boltehoveder på lejeafsnittet 10's overside, og sammenspændingen med tre bolte i hvert afsnit 10 muliggør, at afsnittet udformes med ringe højde, så at udsparingen i 25 overparten bliver dyb.During operation of the motor, the connecting rod 2 and the bearing gates 3, 4 perform an oscillating movement about the longitudinal axis of the crosshead pin, and for this 1-5 movement, the bearing member 4 is made with a through recess providing passage for the piston rod 7. The recess is downwardly defined by two axially extending bearing sections 10, each of which has three upwardly extending threaded holes for collapsing 20 with the lower part, at the bottom of the upper part. By making the seam bolt from below and up through the lower part, upwardly extending bolt heads on the upper side of the bearing section 10 are avoided, and the tightening with three bolts in each section 10 allows the section to be formed at low height so that the recess in the upper part becomes deep.
Stempelstangens flange 9 har, som det også ses i fig. 3 og 4, to på modsatte sider af flangen beliggende sideflader 11, 12, der vender i motorens tværretning. En kanal i form af en tværboring 13 og 30 en aksial boring 14 strækker sig fra en olietilgangsåbning 15 i sidefladen 11 til en udmunding 16 i stempelstangens underside. Udmundingen 16 ligger lodret over en oliefordelingskanal 17 i krydshoved-tappen til fordeling af smøreolie til de enkelte smø-35 resteder i krydshovedet og til en smørekanal 18 i plej Istangen.The flange 9 of the piston rod, as seen in FIG. 3 and 4, two side faces 11, 12 on opposite sides of the flange facing in the transverse direction of the motor. A channel in the form of a transverse bore 13 and 30 an axial bore 14 extends from an oil supply opening 15 in the side surface 11 to an outlet 16 in the underside of the piston rod. The outlet 16 is located vertically over an oil distribution channel 17 in the crosshead pin for distributing lubricating oil to the individual lubricating points in the crosshead and to a lubrication channel 18 in the nursing rod.
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En olietilgangsledning 19 med en tilslutningsflange 20 er spændt fast på sidefladen 11 ved hjælp af fire skruer eller bolte 21. Den modsatte ende af ledningen 19 er fastholdt i forhold til motorstati-5 vet, og det mellemliggende ledningsstykke kan være et teleskoprør eller ledforbundne rørstykker, der kan optage krydshovedets bevægelser i forhold til motorstativet.An oil supply line 19 with a connecting flange 20 is clamped to the side surface 11 by means of four screws or bolts 21. The opposite end of the line 19 is retained relative to the motor stat, and the intermediate line piece may be a telescopic tube or articulated tubes. which can record the movements of the crosshead relative to the motor stand.
En central langsgående boring 22 i stempel-1 o stangen udmunder i krydshovedpindens oliefordelingskanal 17 og er på sit nederste stykke forsynet med indvendigt gevind 23, hvori en med udvendigt gevind forsynet bøsning 24 er iskruet. Bøsningen bærer et centralt i boringen indsat rør 25 og afspærrer nedadtil 15 den ringformede kanal 26, der ligger rundt om røret 25. En tværboring 27 forbinder kanalen 26 med en olieafgangsåbning i sidefladen 12, hvortil en olieafgangsledning 28's tilslutningsflange 29 er fastgjort. Olieafgangsledningen er forbundet med motorens 20 stativ og er udført længdeforanderlig på tilsvarende vis som tilgangsledningen 19. Olie kan strømme til stemplet gennem røret 25 og bort fra stemplet gennem kanalen 26, boringen 27 og ledningen 28.A central longitudinal bore 22 in the piston-1 rod opens into the oil distribution channel 17 of the cross-head pin and is provided with an internal thread 23 on its lower part, in which an outer threaded sleeve 24 is screwed. The sleeve carries a central tube 25 inserted in the bore and downsizes 15 the annular channel 26 lying around the tube 25. A transverse bore 27 connects the channel 26 to an oil outlet opening in the side surface 12 to which the connection flange 29 of an oil outlet line 28 is attached. The oil discharge conduit is connected to the frame of the engine 20 and is designed to be variable in length in the same manner as the inlet conduit 19. Oil can flow to the piston through the pipe 25 and away from the piston through the channel 26, bore 27 and conduit 28.
Lejeafsnittet 10 har i midten af oversiden en 25 reces 30 med en dybde, der vokser i retning bort fra krydshovedtappen. Recessen 30 sikrer, at den på stempelstangen forbundne ledning 19 eller 28 ikke støder mod yderkanten af lejeafsnittet 10, når dette under lejets oscillerende bevægelse bevæges op mod stem-30 pelstangen og ledningen.The bearing section 10 has in the middle of the upper side a 25 recess 30 with a depth which grows in a direction away from the crosshead pin. The recess 30 ensures that the conduit 19 or 28 connected to the piston rod does not abut the outer edge of the bearing portion 10 as it moves upwardly against the piston rod and conduit during the oscillating movement of the bearing.
Oliestrømningerne til og fra krydshovedet er antydet med pile i fig. l, hvor tilgangs- og afgangsledningerne for overskueligheds skyld er vist i afmonteret stand.The oil flows to and from the crosshead are indicated by arrows in FIG. 1, where the access and exit lines are shown in dismantled condition for clarity.
35 Oliefordelingskanalen i krydshovedtappen kan na turligvis have andre udformninger end den viste, når DK 167076 Bl 8 blot kanalen står i forbindelse med tilgangskanalen i stempelstangen og eventuelt med den nedre ende af røret 25.The oil distribution channel in the crosshead pin may, of course, have other designs than that shown when DK 167076 B1 merely communicates with the inlet channel in the piston rod and possibly with the lower end of the tube 25.
Nedenfor beskrives en anden udførelsesform for 5 et krydshoved og en stempelstang ifølge opfindelen, hvor detaljer af samme art som ovenfor gives samme henvisningstal uden yderligere beskrivelse.Below, another embodiment of a crosshead and piston rod according to the invention is described, in which details of the same kind as above are given the same reference numerals without further description.
Som det ses i fig. 5 og 6 er overparten 4's to lejeafsnit_ 10 stift forbundet gennem to lejeendedele 10 31, der kan støtte krydshovedtappen opadtil og afgræn ser den centrale udsparing. Lejeendedelen 31 er vist med en aksial bredde svarende til ca. 18% af lejets bredde, der svarer til længden af krydshovedtappens midterafsnit. Når lejeendedelens bredde ligger i inter-15 vallet fra 17 til 25% af lejets bredde, er lejearealet af passende størrelse samtidig med, at lejeendedelene har passende radial højde.As seen in FIG. 5 and 6, the two bearing sections 10 of the upper part 4 are rigidly connected through two bearing portions 10 31 which can support the crosshead pin upwards and define the central recess. The bearing part 31 is shown with an axial width corresponding to approx. 18% of the bearing width, which corresponds to the length of the center section of the crosshead pin. When the width of the bearing end is in the range of 17 to 25% of the width of the bearing, the bearing area is of appropriate size while the bearing end portions have the appropriate radial height.
Lej eendedelen 31 er udformet med en udsparing i sin aksiale yderside, så at lejeendedelen ligger ak-20 sialt indrykket i forhold til lejeunderparten 3. I denne udsparing har krydshovedtappen en plan nedfræset anlægsflade for en konsol 32, der er fastgjort til tappen ved hjælp af bolte 33 og bærer et koblingshus 34, hvortil olietilgangsledningen 19 og et til olie-25 tilgangsåbningen i stempelstangen førende rørendestykke 35 er fastgjort. Da konsollen 32 optager de fra tilgangsrøret stammende tyngde- og accelerationsbelastninger kan rørendestykket være af forholdsvis spinkel konstruktion, som ikke overfører væsentlige belastninger 3 o til stempelstangen.The bearing end portion 31 is formed with a recess in its axial outer surface, so that the bearing end portion is axially indented relative to the bearing lower part 3. In this recess, the cross-head pin has a plane milled abutment surface for a bracket 32 which is fixed to the pin by means of bolts 33 and carries a coupling housing 34 to which the oil inlet line 19 and a pipe end piece 35 leading to the oil inlet opening in the piston rod are secured. Since the bracket 32 accommodates the gravity and acceleration loads originating from the supply pipe, the pipe end piece may be of relatively thin construction which does not transfer significant loads to the piston rod.
I forhold til sin aksiale udstrækning kan lejet optage en meget stor belastning. Da olietilgangsrøret ved enden af konsollen 32 er forsat i forhold til motorens længdeakse kan det passere op ved siden af mo-35 torcylindrene, også selv om disse for at udnytte krydshovedets korte udstrækning i længderetningen er anbragt tæt på hinanden.In relation to its axial extent, the bearing can take on a very large load. Since the oil supply tube at the end of the bracket 32 is positioned relative to the longitudinal axis of the motor, it can pass up alongside the motor cylinders, although these, to utilize the short length of the crosshead longitudinally, are located close to each other.
Claims (9)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK054691A DK167076B1 (en) | 1991-03-26 | 1991-03-26 | CROSS HEAD AND Piston rod for a stamp motor |
| DE4206122A DE4206122A1 (en) | 1991-03-26 | 1992-02-27 | Crosshead and piston rod for two stroke piston engine |
| ITRM920167A IT1258386B (en) | 1991-03-26 | 1992-03-11 | CROSS HEAD AND CONNECTING ROD FOR A PISTON ENGINE. |
| GR920100115A GR1001198B (en) | 1991-03-26 | 1992-03-24 | Crosshead and piston rod for a piston engine. |
| JP06715692A JP3390027B2 (en) | 1991-03-26 | 1992-03-25 | Crosshead for piston engine |
| PT100295A PT100295A (en) | 1991-03-26 | 1992-03-25 | CRANKET AND SOCKET ROD FOR A BOILER ENGINE |
| CN92102177A CN1027462C (en) | 1991-03-26 | 1992-03-25 | Croddhead and piston rod for piston engine |
| KR1019920004976A KR100233881B1 (en) | 1991-03-26 | 1992-03-26 | Crosshead and piston rod for piston engine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK54691 | 1991-03-26 | ||
| DK054691A DK167076B1 (en) | 1991-03-26 | 1991-03-26 | CROSS HEAD AND Piston rod for a stamp motor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK54691D0 DK54691D0 (en) | 1991-03-26 |
| DK54691A DK54691A (en) | 1991-03-27 |
| DK167076B1 true DK167076B1 (en) | 1993-08-23 |
Family
ID=8094770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK054691A DK167076B1 (en) | 1991-03-26 | 1991-03-26 | CROSS HEAD AND Piston rod for a stamp motor |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP3390027B2 (en) |
| KR (1) | KR100233881B1 (en) |
| CN (1) | CN1027462C (en) |
| DE (1) | DE4206122A1 (en) |
| DK (1) | DK167076B1 (en) |
| GR (1) | GR1001198B (en) |
| IT (1) | IT1258386B (en) |
| PT (1) | PT100295A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707699B1 (en) * | 1993-07-10 | 1995-11-10 | Daimler Benz Ag | Two-stroke internal combustion engine controlled by lights. |
| DK0989297T3 (en) * | 1998-09-21 | 2004-10-25 | Waertsilae Nsd Schweiz Ag | Reciprocating internal combustion engine |
| DE102005003552B4 (en) * | 2005-01-26 | 2007-05-03 | Man B & W Diesel A/S | Crosshead engine |
| JP5330911B2 (en) * | 2009-07-03 | 2013-10-30 | 三菱重工業株式会社 | Oil introduction pipe |
| DE102012010967A1 (en) | 2012-05-31 | 2013-12-05 | Golle Motor Gmbh | Crosshead/piston unit for e.g. piston engine, has cross-head bolts utilized for transmitting normal lateral forces of cross head on cap-shaped trained guide bush, and closure formed by work area and metal sheet tabs |
| CN102788077A (en) * | 2012-07-19 | 2012-11-21 | 浙江长兴前进机械铸造有限公司 | Cross shaft |
| CN104265398B (en) * | 2014-07-24 | 2016-07-13 | 江苏科技大学 | Diesel engine cross lubrication fueller |
| CN106089686A (en) * | 2016-07-18 | 2016-11-09 | 衡阳中地装备探矿工程机械有限公司 | A kind of crosshead and piston rod attachment structure and processing method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1259138B (en) * | 1962-11-13 | 1968-01-18 | Goetaverken Ab | Crosshead bolts for internal combustion engines, especially two-stroke internal combustion engines |
| CH540442A (en) * | 1971-07-13 | 1973-08-15 | Sulzer Ag | Cross-head journal bearings for piston engines, in particular for diesel internal combustion engines |
| CH576082A5 (en) * | 1974-03-21 | 1976-05-31 | Sulzer Ag | |
| DE2854234A1 (en) * | 1978-04-27 | 1979-10-31 | Sulzer Ag | CROSS-HEAD PIN BEARINGS FOR PISTON MACHINES, IN PARTICULAR FOR DIESEL ENGINEERING MACHINES |
| JPS5831446B2 (en) * | 1978-08-01 | 1983-07-06 | 三菱重工業株式会社 | Internal combustion engine piston cooling system |
| CH666094A5 (en) * | 1985-04-26 | 1988-06-30 | Sulzer Ag | CROSS HEAD PIN BEARINGS FOR PISTON MACHINES. |
| DE58900717D1 (en) * | 1988-04-27 | 1992-02-27 | Sulzer Ag | LUBRICATION ARRANGEMENT FOR THE CROSS-HEAD BEARING OF A TWO-STROKE PISTON COMBUSTION ENGINE. |
-
1991
- 1991-03-26 DK DK054691A patent/DK167076B1/en not_active IP Right Cessation
-
1992
- 1992-02-27 DE DE4206122A patent/DE4206122A1/en not_active Withdrawn
- 1992-03-11 IT ITRM920167A patent/IT1258386B/en active IP Right Grant
- 1992-03-24 GR GR920100115A patent/GR1001198B/en unknown
- 1992-03-25 CN CN92102177A patent/CN1027462C/en not_active Expired - Fee Related
- 1992-03-25 PT PT100295A patent/PT100295A/en not_active Application Discontinuation
- 1992-03-25 JP JP06715692A patent/JP3390027B2/en not_active Expired - Fee Related
- 1992-03-26 KR KR1019920004976A patent/KR100233881B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065323A (en) | 1992-10-14 |
| ITRM920167A1 (en) | 1993-09-11 |
| JP3390027B2 (en) | 2003-03-24 |
| KR920018370A (en) | 1992-10-21 |
| DE4206122A1 (en) | 1992-10-01 |
| DK54691A (en) | 1991-03-27 |
| DK54691D0 (en) | 1991-03-26 |
| CN1027462C (en) | 1995-01-18 |
| KR100233881B1 (en) | 1999-12-15 |
| IT1258386B (en) | 1996-02-26 |
| ITRM920167A0 (en) | 1992-03-11 |
| GR1001198B (en) | 1993-06-21 |
| JPH0599218A (en) | 1993-04-20 |
| PT100295A (en) | 1994-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A0 | Application filed | ||
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |