DK170263B1 - Cross head type piston engine - Google Patents
Cross head type piston engine Download PDFInfo
- Publication number
- DK170263B1 DK170263B1 DK043792A DK43792A DK170263B1 DK 170263 B1 DK170263 B1 DK 170263B1 DK 043792 A DK043792 A DK 043792A DK 43792 A DK43792 A DK 43792A DK 170263 B1 DK170263 B1 DK 170263B1
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- DK
- Denmark
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- guide
- plane
- motor
- piston
- control
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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
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B31/00—Component parts, details, or accessories not provided for in, or of interest apart from, other groups
- F01B31/26—Other component parts, details, or accessories, peculiar to steam engines
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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
- F02B9/00—Engines characterised by other types of ignition
- F02B9/02—Engines characterised by other types of ignition with compression ignition
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Actuator (AREA)
Description
DK 170263 B1DK 170263 B1
Opfindelsen angår en stempelmotor af krydshovedtypen, hvor et krydshoved, der forbinder stempelstangen med plejlstangen, er styret i motorens tværretning ved hjælp af mindst én styresko med mindst én støtteflade, 5 der kan glide langs en modsvarende styreflade på et styreplan, der er båret af motorstativet og forløber hovedsageligt parallelt med længdeaksen af den til stemplet hørende cylinder.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a crosshead type piston motor, wherein a crosshead connecting the piston rod to the connecting rod is guided in the transverse direction of the motor by at least one guide shoe with at least one support surface 5 which can slide along a corresponding guide surface on a control plane carried by the motor stand. and runs essentially parallel to the longitudinal axis of the piston-associated cylinder.
De kendte krydshovedmotorer har sædvanligvis to 10 styreplaner, som i tværretningen ligger over for hinanden i en sådan indbyrdes afstand, at den tilhørende-styresko på krydshovedet kan ligge centralt i motoren mellem styreplanernes to modstående styreflader. På hver sin side af styreskoen er der en udadvendende 15 støtteflade, som kan ligge an mod den indadvendende styreflade på det tilhørende styreplan. Styreplanerne er fastgjort til en tværvæg i motorstativet mellem bundrammen og cylinderpartiet. Styreplanet er sædvanligvis udformet ud i et med tværvæggen, hvilket kan ske 20 ved støbning af tværvæg og styreplan i et stykke, men oftere ved at styreplanet er svejst fast til tværvæggen og afstivet ved hjælp af skråtstillede stivere, som forløber udefter fra styreplanets frie rand til tværvæggen .The known cross-head motors usually have two control planes which are transversely opposed to each other at such a distance that the associated control shoes on the cross-head may lie centrally in the motor between the two opposite control surfaces of the control planes. On each side of the guide shoe there is an outwardly facing support surface which may abut against the inwardly facing guide surface of the associated guide plane. The control planes are attached to a transverse wall of the engine rack between the bottom frame and the cylinder portion. The control plane is usually formed integrally with the transverse wall, which can be accomplished by molding the transverse wall and steering plane in one piece, but more often by the steering plane being welded to the transverse wall and stiffened by inclined struts extending outwards from the free edge of the control plane to the cross wall.
25 I de kendte motorer er det meget tids- og om kostningskrævende at fremstille motorstativets tværvægge med styreplanerne, fordi styrefladerne under motorens drift skal have en høj grad af parallellitet for at hindre fastklemning af styreskoen mellem styrepla-30 nerne. Da styreplanerne er stift forbundet med motorstativet bliver styreplanerne udsat for vridning og bøjning, når mellemvæggen belastes dels af stagboltenes DK 170263 B1 2 sammentrykningskraft, dels af de termiske belastninger, der fremkommer, når motorens belastning ændres og navnlig når motoren startes efter en længere stilstandsperiode. Deformationen af styreplanet kan medføre, at 5 styreskoen træder uensartet på styrefladen, så at der forekommer lokal opvarmning og dermed udvidelse af styreskoen. I værste fald kan dette føre til, at styreskoen går i bekneb mellem styrefladerne som følge af styreskoens udvidelse i tværretningen.25 In the known motors, it is very time and costly to manufacture the transverse walls of the motor frame with the control planes, because the control surfaces during the motor operation must have a high degree of parallelism to prevent clamping of the control shoe between the control planes. Since the control planes are rigidly connected to the motor stand, the control planes are subjected to torsion and bending when the middle wall is loaded partly by the compressive force of the stud bolts DK 170263 B1 2 and partly by the thermal loads that arise when the engine load changes and especially when the engine is started after a longer standstill period. The deformation of the steering plane can cause the steering shoe to step unevenly on the steering surface, so that there is local heating and thus expansion of the steering shoe. In the worst case, this can cause the steering shoe to move between the steering surfaces as a result of the steering shoe's extension in the transverse direction.
10 Såfremt motoren er installeret i et skib, kan skibets bevægelser fremkalde små vridninger af tværvæggene og dermed af styreplanerne, hvilket vil føre til forøget slid af både styresko og styreplaner.10 If the engine is installed in a ship, the ship's movements can cause slight twisting of the transverse walls and thus of the control planes, which will lead to increased wear of both control shoes and control planes.
Opfindelsen tager sigte på anvisning af en stem-15 pelmotor, hvor risikoen for beskadigelse af eller slid på enten styreplanet eller styreskoen er formindsket.The invention is directed to the provision of a piston engine in which the risk of damage or wear to either the steering plane or the steering shoe is reduced.
Med henblik herpå er stempelmotoren ifølge opfindelsen ejendommelig ved, at styreplanet er beliggende ved motorens langsgående centerplan, og at styrefla-20 den på styreplanet vender i det mindste delvis udad i motorens tværretning, så at den tilhørende støtteflade på styreskoen ligger i det mindste delvis på den bort fra centerplanet vendende side af styrefladen.To this end, the piston motor according to the invention is characterized in that the control plane is located at the longitudinal center plane of the motor and that the control surface of the control plane faces at least partly outwardly in the transverse direction of the motor, so that the associated support surface of the control shoe lies at least partially on the facing away from the center plane of the guide surface.
Styreplanet er mere immunt over for vridninger i 25 tværvæggen fordi styreplanets beliggenhed ved motorens centerplan fører til mindre bevægelser af styrefladen for en bestemt vridning af tværvæggen. Da styreskoen ligger uden på eller griber omkring styreplanet, vil en opvarmning og medfølgende udvidelse af styreskoen føre 30 til, at grebet omkring styreplanet mindskes ved at støttefladen bevæges en anelse udad i retning bort fra .The control plane is more immune to torsions in the transverse wall because the control plane's location at the motor's center plane leads to less movement of the control surface for a particular torsional torsion. As the guide shoe rests on or engages around the guide plane, a heating and consequent extension of the guide shoe will cause the grip around the guide plane to be reduced by moving the support surface slightly outwardly away from.
styrefladen.the control surface.
Styreplanet kan hensigtsmæssigt være understøt-tet i motorstativet ved motorens langsgående center-35 plan så at en vridning af motorstativets tværvæg om centerplanet kun giver en minimal bevægelse af styreplanet.The control plane may conveniently be supported in the motor frame at the longitudinal center plane of the motor so that a twist of the motor frame transverse wall about the center plane provides only minimal movement of the control plane.
DK 170263 B1 3DK 170263 B1 3
Vridning af styrefladen som følge af temperaturforskel mellem styreplanet og motorstativet kan stort set undgås ved at styreplanet ved ét punkt, fortrinsvis beliggende i det væsentlige i midten af planets ud-5 strækning i motorens højderetning, er drejeligt lejret i motorstativet, og at styreplanet ved sin øvre og nedre ende er fikserbar i motorens tværretning. Et-punktscharnierlejringen giver ingen mulighed for overførsel af temperaturspændinger, idet styreplanet 10 ikke hænger stift sammen med motorstativet, og fikseringen i motorens tværretning tillader en temperaturskabt længdeudvidelse af styreplanet i motorens højderetning, når styreplanet under motorens drift bliver varmere end tværvæggen i motorstativet. Styreplanets 15 frie udvidelsesmulighed i forhold til tværvæggen fremkommer uanset beliggenheden af lejringspunktet, men det foretrækkes dog at lejringspunktet ligger ved midten af styreplanet, så at en eventuel længdeudvidelse fordeles ligeligt i opad- og nedadgående retning.Rotation of the steering surface due to temperature difference between the steering plane and the motor stand can be largely avoided by the steering plane at one point, preferably located substantially in the middle of the plane of the plane in the height of the motor, being pivotally mounted in the motor stand, and the steering plane at its upper and lower ends are fixable in the transverse direction of the motor. The one-point hinge bearing does not allow the transfer of temperature stresses, since the control plane 10 is not rigidly connected to the motor stand, and the fixation in the transverse direction of the motor permits a temperature-created extension of the control plane in the height of the motor when the control plane becomes warmer than the transverse wall of the motor stand. The free extension option of the guide plane 15 relative to the transverse wall appears regardless of the location of the bearing point, however, it is preferred that the bearing point is at the center of the guide plane so that any length extension is distributed equally in the upward and downward directions.
20 Monteringen af styreplanet kan lettes, og der kan opnås stor sikkerhed for at styrefladen forløber parallelt med længdeaksen af den tilhørende cylinder, ved at styreplanets øvre og nedre ende hver for sig er indstilleligt fikserbar i motorens tværretning, idet 25 styreplanernes endelige opretning på enkel vis kan foretages efter, at motorstativet er deformeret som følge af spænding af stagboltene, ved at styreplanets øvre og nedre ende positioneres under samtidig drejning af styreplanet omkring ophængningspunktet.The mounting of the control plane can be facilitated, and great assurance can be obtained that the control surface extends parallel to the longitudinal axis of the associated cylinder by the upper and lower ends of the control plane being individually adjustable in the transverse direction of the motor, the final alignment of the control planes in a simple manner. can be made after the motor stand is deformed due to tension of the stud bolts, by positioning the upper and lower ends of the guide plane while simultaneously rotating the guide plane around the suspension point.
30 I en særlig enkel udførelsesform er styreplanet en langstrakt bjælke, som har to i motorens tværretning udadvendte langsgående styreflader og en central i motorens længderetning vendende, langsgående sekundær styreflade. Bjælken kan ved støbning fremstilles som en 35 særskilt enhed, der har forholdsvis små dimensioner og derfor let kan færdigbearbejdes på mål inden monter in- DK 170263 B1 4 gen i motoren. I forhold til de kendte motorer med to separate styreplaner til understøtning af hver styresko opnås der endvidere en væsentlig forenkling i og med, at der kun skal monteres ét styreplan, som bærer begge 5 styreflader, hvilket navnlig er fordelagtigt, fordi styreplanets opretning i forhold til cylinderens længdeakse skal udføres med stor omhyggelighed.In a particularly simple embodiment, the guide plane is an elongated beam having two longitudinal guide faces facing outwards in the transverse direction of the motor and a longitudinal secondary guide face facing the longitudinal center of the motor. The casting can be made by casting as a separate unit that has relatively small dimensions and can therefore easily be finished on dimensions before mounting in the engine. Furthermore, compared to the known motors with two separate control planes for supporting each control shoe, a significant simplification is achieved in that only one control plane must be mounted, which carries both five control surfaces, which is particularly advantageous because the control plane's alignment with the longitudinal axis of the cylinder must be carried out with great care.
Opfindelsen angår endvidere en stempelmotor af den indledningsvis nævnte art, som er ejendommelig ved, 10 at styreskoen har to i indbyrdes afstand beliggende og mod hinanden vendende støtteflader, hvorimellem styreplanet kan optages, så at støttefladerne kan glide langs udadvendte styreflader på styreplanet. Da den mellem styre- og støttefladerne udviklede varme normalt 15 vil optages i både styreplanet og styreskoen, vil-styreskoen som følge af en væsentlig kortere udstrækning i bevægelsesretningen blive væsentlig varmere end styreplanet. Denne temperaturforskel forstærkes yderligere af det forhold, at styreskoen skiftevis glider 20 mod den ene og den anden af styrefladerne. Da styreplanet ligger mellem støttefladerne, har den relativt varme styresko mulighed for frit at udvide sig i tværretningen uden risiko for at gå i bekneb.The invention further relates to a piston engine of the type mentioned initially, characterized in that the guide shoe has two mutually spaced and facing supporting surfaces, between which the guide plane can be accommodated so that the support faces can slide along outwardly directed guide surfaces on the guide plane. Since the heat generated between the guide and support surfaces will normally be absorbed in both the guide plane and the guide shoe, the guide shoe will, as a result of a significantly shorter extension in the direction of movement, become significantly hotter than the guide plane. This temperature difference is further exacerbated by the fact that the guide shoe alternately slides 20 toward one and the other of the guide surfaces. Since the steering plane lies between the support surfaces, the relatively warm steering shoe has the opportunity to expand freely in the transverse direction without the risk of falling asleep.
Styreskoen har fortrinsvis mindst en i motorens 25 længderetning vendende sekundær støtteflade, der i tværretningen er beliggende centralt i styreskoen. Denne støtteflade styrer styreskoen og dermed plejl- og stempelstangen i motorens længderetning. Da støttefladen ifølge opfindelsen ligger centralt i styreskoen, 30 kan styrekræfter i motorens længderetning ikke føre til nogen krængningspåvirkning på styreskoen.The guide shoe preferably has at least one secondary supporting surface facing in the longitudinal direction of the engine 25, which is centrally located in the guide shoe in the transverse direction. This support surface controls the steering shoe and thus the pole and piston rod in the longitudinal direction of the motor. Since the support surface according to the invention is centrally located in the steering shoe, steering forces in the longitudinal direction of the motor can not cause any tilting effect on the steering shoe.
En udførelsesform for opfindelsen forklares herefter nærmere med henvisning til den skematiske tegning, hvor 35 fig. 1 viser en tværvæg i et motorstativ med på monteret styreplan ifølge opfindelsen, DK 170263 B1 5 fig. 2 et tværsnit gennem styreplanet ved en primær understøtning, fig. 3 et tværsnit gennem styreplanet ved en sekundær understøtning, 5 fig. 4 et sidebillede af den ene ende af styre planet, fig. 5 i udsnit et tværsnit gennem en stempelmotor ifølge opfindelsen ud for styreplanernes primære understøtning, 10 fig. 6 et sidebillede, henholdsvis lodret snit gennem en styresko ifølge opfindelsen, og fig. 7 en skitse af tværafstivningens lejring i en tværvæg.An embodiment of the invention is explained in greater detail with reference to the schematic drawing, in which FIG. 1 shows a transverse wall in a motor stand with on the control plane according to the invention, FIG. 170 FIG. 2 is a cross-section through the control plane of a primary support; FIG. 3 is a cross-section through the guide plane of a secondary support; FIG. 4 is a side view of one end of the guide plane; FIG. 5 is a cross-sectional view of a piston motor according to the invention in addition to the main support of the control planes; 6 is a side view, respectively a vertical section through a guide shoe according to the invention, and FIG. 7 is a sketch of the cross-stiffener bearing in a transverse wall.
I fig. 1 ses et tværsnit gennem et generelt med 15 1 betegnet motorstativ til en stor langsomgående die-- selmotor til brug som fremdrivningsmotor i et skib. Motorstativet er opbygget af langsgående sidestykker 2 og 3, der er stift forbundet med en vandretliggende langsgående bundplade 4 til forbindelse med motorens 20 bundramme og en vandretliggende langsgående topplade 5 til forbindelse med cylinderpartiet. Stagbolte antydet ved 6 spænder cylinderpartiet, motorstativet 1 og bundrammen sammen til en enhed. Motorstativet har afstivende tværvægge 7, som optager trykket fra stag-25 boltene 6 og bærer styreplanet 8 til positionering af krydshovedet i motorens tværretning.In FIG. 1 is a cross-section through a generally 15 liter engine rack for a large slow-moving diesel engine for use as a propulsion engine in a ship. The motor stand is made up of longitudinal side members 2 and 3 which are rigidly connected to a horizontal longitudinal bottom plate 4 for connection with the bottom frame of the engine 20 and a horizontal longitudinal top plate 5 for connection with the cylinder part. Rod bolts indicated at 6 span the cylinder portion, the motor stand 1 and the bottom frame together into one unit. The motor stand has stiffened transverse walls 7 which absorb the pressure from the stagger bolts 6 and carry the guide plane 8 for positioning the crosshead in the transverse direction of the motor.
Styreplanet 8 har form som en langstrakt støbt bjælke med to langsgående sideflader, der er bearbejdet til at være indbyrdes parallelle, så at de efter styre-30 planets montering på tværvæggen vil vende bort fra hinanden udad mod motorens tværretning. De udadvendende sideflader virker som styreflader 9, 10 for en tilhørende styresko.The guide plane 8 is shaped like an elongated cast beam with two longitudinal side faces, which are machined to be parallel to each other, so that, after mounting the guide plane on the transverse wall, they will face away from each other outwards towards the transverse direction of the motor. The outward facing side surfaces act as guide surfaces 9, 10 for an associated guide shoe.
Ved en primær understøtning A er en pas tap 11 35 ved midten af styreplanet indpresset i et centralt beliggende pashul 12, se fig. 2, Pastappen 11 rager DK 170263 B1 6 ud på bagsiden af styreplanet, som i området omkring tappen har et fremspringende, plant parti 13, som kan ligge an mod en modsvarende plan flade 14, der er indarbejdet i tværvæggen 7 omkring et pashul 15 til 5 optagelse af den udragende ende af pastappen 11, så at styreplanet bliver lejret i tværvæggen 7 drejelig om tappen 11. Rundt om hullet 15 er der flere gennemboringer 16 beliggende ud for tilhørende boringer 17 i styreplanet. Boringerne 16 har noget større 10 diameter end boringerne 17, så at fastgøringsorganer, såsom bolte 18, indsat i boringerne 17 har en vis frigang i forhold til hullet 16, hvilket tillader styreplanet en vis drejning om pastappen 11.In a primary support A, a passport pin 11 35 at the center of the control plane is pressed into a centrally located pass hole 12, see FIG. 2, the paste tab 11 protrudes DK 170263 B1 6 on the back of the guide plane, which in the region around the pin has a projecting, flat portion 13 which may abut against a corresponding planar surface 14 which is incorporated in the transverse wall 7 about a fitting hole 15 for 5, receiving the protruding end of the pin 11 so that the guide plane is mounted in the transverse wall 7 pivotally about the pin 11. Around the hole 15 there are several bores 16 located adjacent to bores 17 in the guide plane. The bores 16 are somewhat larger in diameter than the bores 17, so that fasteners, such as bolts 18, inserted into the bores 17 have some clearance relative to the hole 16, allowing the guide plane a certain rotation about the pin 11.
For at muliggøre en opretning af styreplanet i 15 motorens længderetning, har det yderligere to sekundære understøtninger B med fremspringende partier 13', der ligger i afstand fra og på hver sin side af den primære understøtning A og ligger an mod en i tværvæggen 7 indarbejdet plan flade 14' (fig. 3).To enable alignment of the guide plane in the longitudinal direction of the motor, it has two additional secondary supports B with projecting portions 13 'spaced apart and on either side of the primary support A and abutting a plane incorporated in the transverse wall 7 surface 14 '(Fig. 3).
20 Som vist i fig. l og 4 har styreplanet ved sin øvre og nedre ende en fremspringende gaffel 19 med en i tværretningen gennemgående udsparing 20, hvori støttestag 21 kan indsættes. I fig. 7 ses, hvorledes enderne af støttestagene er monteret i åg 22, som 25 passerer gennem og er lejret i tværvæggen 7. Hver yderende af støttestagene består af en gevindtap 23, der er fastspændt til åget 22 ved hjælp af et underlagsstykke 24 og en møtrik 25 på hver side af åget.20 As shown in FIG. 1 and 4, the guide plane at its upper and lower ends has a protruding fork 19 with a recess 20 extending in the transverse direction into which support bars 21 can be inserted. In FIG. 7 shows how the ends of the support rods are mounted in yoke 22, which 25 passes through and is mounted in the transverse wall 7. Each end of the support rods consists of a threaded pin 23 which is fastened to the yoke 22 by means of a support piece 24 and a nut 25 on each side of the yoke.
Det omkring gaflen 19 liggende område af støttestaget 30 er udformet som en gevindstang, som på hver side af gaflen 19 bærer et underlagsstykke 26 og en justeringsmøtrik 27.The area around the fork 19 of the support rod 30 is formed as a threaded rod which carries on each side of the fork 19 a support piece 26 and an adjusting nut 27.
Styreplanerne kan monteres i motoren efter op-svejsningen af motorstativet 1, hvilket tillader at 35 styreplanerne færdigforarbejdes inden montering i motoren. Ved monteringen ophænges styreplanet først i DK 170263 B1 7 tværvæggen 7 ved at pastappen 11 føres ind i pashullet 15. Hvis der er et styreplan på hver side af tværvæggen, kan disse hensigtsmæssigt monteres samti-' digt, idet der da kan anvendes gennemgående bolte el- 5 ler gevindtappe 18, som vist i fig. 5. De to til samme cylinder hørende styreplaner oprettes i motorens længderetning i forhold til hinanden ved indlægning af passende afstandsskiver (ikke vist) mellem de plane flader 14, 14' og de fremspringende partier 13, 13'. Disse 10 skiver bør være af et friktionsnedsættende materiale, såsom messing, der virker som en slags glideleje og gør det let for styreplanet at udvide sig termisk i forhold til tværvæggen 7. Den endelige opretning af styreplanerne i tværgående retning til fuld parallellitet 15 med længdeaksen af den tilhørende cylinder sker ved indstilling af møtrikkerne 27 på støttestagene 21.The control planes can be mounted in the motor after welding of the motor frame 1, which allows the control planes to be finished before mounting in the motor. When mounting, the guide plane is first suspended in DK 170263 B1 7 the transverse wall 7 by inserting the pin 11 into the pass hole 15. If there is a guide plane on each side of the transverse wall, these can conveniently be mounted simultaneously, since through-going bolts or the like can be used. 5 clay threaded pins 18, as shown in FIG. 5. The two control planes belonging to the same cylinder are created in the longitudinal direction of the motor relative to each other by inserting appropriate spacers (not shown) between the planar faces 14, 14 'and the projecting portions 13, 13'. These 10 washers should be of a friction-reducing material, such as brass, which acts as a kind of sliding bearing and makes it easy for the guide plane to expand thermally with respect to the transverse wall 7. The final alignment of the guide planes in transverse direction to full parallel 15 with the longitudinal axis of the associated cylinder is done by adjusting the nuts 27 on the support studs 21.
Til sidst spændes boltene eller tappene 18, som i tværretningen ligger i afstand fra motorens centerplan for dels at kunne optage momentpåvirkninger fra styre-20 skoene, dels give plads for en centralt beliggende, langsgående sekundær styreflade 28, der sikrer centreringen af krydshovedet og dermed stempelstangen og plej Istangen i motorens længderetning.Finally, the bolts or pins 18, which in the transverse direction are spaced from the center plane of the engine, are tightened to be able to absorb torque impacts from the guide shoes and to provide space for a centrally located, longitudinal secondary guide surface 28 which ensures the centering of the crosshead and thus the piston rod. and care for the rod in the longitudinal direction of the motor.
Støttestagene 21 har tilstrækkelig stor længde 25 til, at styreplanet ikke hindres i længdeudvidelse, og den del af stagenes skaft, som under motorens fremdrift trykpåvirkes under stemplets nedovergående arbejdslag, er udført med større diameter end den anden del af skaftet.The support bars 21 are of sufficient length 25 so that the guide plane is not obstructed in length extension and the part of the shaft of the bracket which, under the engine's propulsion, is pressurized under the downward working layer of the piston, is made with a larger diameter than the other part of the shaft.
30 I fig. 5 og 6 ses et krydshoved 29 med en ydre lejedel forbundet med plejIstangen 30 og en kryds- hovedpind 31, der er forbundet med den ikke viste stempelstang. Krydshovedpinden 31 har to i længderetningen udragende cylindriske tappe 32, som bærer sty-35 resko 33. Por at mindske krydshovedets udstrækning i motorens længderetning passerer styreskoene 33 ind i tilhørende recesser 34 i krydshovedpinden.In FIG. 5 and 6, there is seen a cross head 29 with an outer bearing member connected to the plunger rod 30 and a cross head pin 31 connected to the piston rod not shown. The cross head pin 31 has two longitudinally extending cylindrical pins 32 which carry guide shoe 33. To reduce the length of the cross head in the longitudinal direction of the motor, the guide shoes 33 pass into associated recesses 34 in the cross head pin.
DK 170263 B1 8DK 170263 B1 8
Styreskoen 33 er U-formet og griber ind omkring det tilhørende styreplan 8. På indersiden af hver af U’ets grene er der ved hjælp af bolte 35 fastgjort et strimmelformet stykke stål belagt med 5 lejemetal, såsom hvidmetal. De aftageligt fastgjorte strimler muliggør en slidbetinget udskiftning af lejefladerne, men det er dog også muligt at forsyne styreskoene 33 med istøbte hvidmetalsområder. De to mod hinanden vendende sider af strimlerne 36 udgør støt-10 teflader 37, 38 for styreskoene. Disse støtteflader og styrefladerne 9, 10 på styreplanet glider under motorens gang henover hinanden og smøres ved hjælp af en olietilgangsåbning 39, som gennem en kanal 40 står i forbindelse med en oliefordelingskanal i kryds-15 hovedpindens tap 32. ·The guide shoe 33 is U-shaped and engages around the associated guide plane 8. On the inside of each of the branches of the U, a strip-shaped piece of steel is coated with 5 bearing metal, such as white metal. The removably fastened strips allow wear-resistant replacement of the bearing surfaces, but it is also possible to provide the guide shoes 33 with molded white metal areas. The two facing sides of the strips 36 form supporting surfaces 37, 38 of the guide shoes. These support surfaces and the control surfaces 9, 10 on the control plane slide over each other during the engine run and are lubricated by an oil supply opening 39 which, through a channel 40, communicates with an oil distribution channel in the pin 15 of the cross-head pin 32. ·
Foroven og forneden i styreskoen 33 er der en centralt beliggende strimmel 41 belagt med lejemetal med en i motorens længderetning vendende sekundær støtteflade 42. Under krydshovedets bevægelse på langs af 20 styreplanet glider den sekundære støtteflade 42 mod den sekundære styreflade 28, hvorved krydshovedet positioneres i motorens længderetning. Da støttefladen 42 er beliggende i motorens centerplan, kan de på krydshovedet indvirkende styrekræfter i motorens læng-25 deretning ikke medføre nogen krængningspåvirkning på krydshovedet. Det er naturligvis muligt kun at anvende en enkelt strimmel 41, men anvendelsen af to stykker anbragt i størst mulig afstand fra krydshovedets centerlinie fører til de mindst mulige styrekræfter.At the top and bottom of the guide shoe 33 there is a centrally located strip 41 coated with bearing metal with a longitudinal secondary support surface 42 facing the motor. During the longitudinal movement of the cross head, the secondary support surface 42 slides against the secondary guide surface 28, whereby the cross head is positioned in the motor longitudinal direction. Since the support surface 42 is located in the center plane of the motor, the steering forces acting on the crosshead in the longitudinal direction of the motor cannot cause any tilting effect on the crosshead. Of course, it is possible to use only a single strip 41, but the use of two pieces spaced as far as possible from the center line of the crosshead leads to the least possible steering forces.
30 Strimlen 41 er fastholdt i en udsparing i styreskoen ved hjælp af en bolt 43 med et tilhørende anslagsstykke. Den sekundære støtteflade 42 smøres gennem en oliekanal 44.The strip 41 is secured in a recess in the guide shoe by means of a bolt 43 with an associated impact piece. The secondary support surface 42 is lubricated through an oil channel 44.
Den centrale placering af styreplanet fører som 35 ovenfor nævnt til, at styre- og støttefladerne ved motorens drift kun påvirkes i minimal grad af torsioner DK 170263 B1 9 i tværvæggen 7, og muligheden for ved styreplanets montering i motoren at oprette dette efter spænding af stagboltene, gør det ukompliceret at kompensere for eventuelle deformationer af tværvæggen 7.The central position of the control plane, as mentioned above, leads to the fact that the control and support surfaces during operation of the motor are only affected to a minimum degree by torsions DK 170263 B1 9 in the transverse wall 7, and the possibility of erecting this after tensioning of the stag bolts in the motor. , makes it uncomplicated to compensate for any deformation of the transverse wall 7.
5 Opfindelsen er ikke begrænset til anvendelsen af et styreplan med to modstående styreflader, idet styreplanet eksempelvis også kan udformes som en cylinderflade, hvis cylindriske yderside udgør en enkelt styreflade for styreskoen, der med mindst én cirkelbueformet 10 støtteflade griber uden om styreplanet. Denne udførelsesform kan være anvendelig ved mindre motorer.The invention is not limited to the use of a guide plane with two opposite guide surfaces, for example, the guide plane can also be designed as a cylinder surface, the cylindrical outer surface of which forms a single guide surface for the guide shoe, which engages at least one circular arcuate support surface around the guide plane. This embodiment may be applicable to smaller motors.
Claims (9)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK043792A DK170263B1 (en) | 1992-04-01 | 1992-04-01 | Cross head type piston engine |
| KR1019930004498A KR100252522B1 (en) | 1992-04-01 | 1993-03-23 | A piston engine of the crosshead type |
| DE4309585A DE4309585C2 (en) | 1992-04-01 | 1993-03-24 | Piston engine of the crosshead type |
| JP06862893A JP3300098B2 (en) | 1992-04-01 | 1993-03-26 | Crosshead piston engine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK043792A DK170263B1 (en) | 1992-04-01 | 1992-04-01 | Cross head type piston engine |
| DK43792 | 1992-04-01 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK43792D0 DK43792D0 (en) | 1992-04-01 |
| DK43792A DK43792A (en) | 1993-10-02 |
| DK170263B1 true DK170263B1 (en) | 1995-07-17 |
Family
ID=8093528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK043792A DK170263B1 (en) | 1992-04-01 | 1992-04-01 | Cross head type piston engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3300098B2 (en) |
| KR (1) | KR100252522B1 (en) |
| DE (1) | DE4309585C2 (en) |
| DK (1) | DK170263B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797129B1 (en) * | 2000-09-25 | 2008-01-22 | 베르트질레 슈바이츠 악티엔게젤샤프트 | Cross-head sliding shoe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE507226C (en) * | 1927-03-15 | 1930-09-13 | Stephen Evans Alley | Standing single-acting multi-cylinder steam engine |
| DK169826B1 (en) * | 1992-12-09 | 1995-03-06 | Man B & W Diesel Gmbh | Cross head type piston engine |
-
1992
- 1992-04-01 DK DK043792A patent/DK170263B1/en not_active IP Right Cessation
-
1993
- 1993-03-23 KR KR1019930004498A patent/KR100252522B1/en not_active IP Right Cessation
- 1993-03-24 DE DE4309585A patent/DE4309585C2/en not_active Expired - Fee Related
- 1993-03-26 JP JP06862893A patent/JP3300098B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DK43792A (en) | 1993-10-02 |
| JPH07269553A (en) | 1995-10-17 |
| DE4309585C2 (en) | 2002-10-31 |
| DK43792D0 (en) | 1992-04-01 |
| KR930021962A (en) | 1993-11-23 |
| DE4309585A1 (en) | 1993-10-07 |
| KR100252522B1 (en) | 2000-04-15 |
| JP3300098B2 (en) | 2002-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A0 | Application filed | ||
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |
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