CN104061088A - Crosshead Uniflow Combustion Engine - Google Patents
Crosshead Uniflow Combustion Engine Download PDFInfo
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- CN104061088A CN104061088A CN201310718565.9A CN201310718565A CN104061088A CN 104061088 A CN104061088 A CN 104061088A CN 201310718565 A CN201310718565 A CN 201310718565A CN 104061088 A CN104061088 A CN 104061088A
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- Prior art keywords
- wall
- flank
- transverse wall
- guiding plane
- combustion engine
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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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
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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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
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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
- F02B75/40—Other reciprocating-piston engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0021—Construction
- F02F7/0024—Casings for larger engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention is concernes a crosshead uniflow combustion engine. The engine comprises a crank shaft driven by a number of pistons, each of which reciprocating in a cylinder and being connected to the crank shaft via a crosshead, and an engine structure having a bed frame rotatably supporting the crank shaft, on the bed frame a frame box for guiding the reciprocal movement of a number of crossheads, and, on the frame box, a cylinder frame for carrying a number of cylinders. Further, the frame box comprises on both sides of the crank shaft a side wall connected by rear transversal walls to a further number of guide walls, each of which provides a guide plane extending laterally along the path of the guided crosshead movement, and from each of which a transversal wall protrudes, which is aligned with the corresponding rear transversal wall and which connects the guide wall on the one side of the crank shaft to a corresponding guide wall on the other side, wherein the rear transversal walls have, for stiffening the connection of the guide walls and the side walls, stiffening ribs arranged normally to the path of the guided crosshead movement. The invention is characterized in that each guide wall has two reinforcing flank walls protruding on opposite sides of the corresponding rear transversal wall towards the corresponding side wall and extending laterally along the path of crosshead movement such that everywhere along the path of crosshead movement, each guide wall and its two reinforcing flank walls form an open U-shaped cross section.
Description
Technical field
The present invention relates to a kind of according to the crosshead single current internal-combustion engine described in the preamble of claim 1.
Background technique
The two stroke diesel engine type that this crosshead single current internal-combustion engine is normally large-scale, but sometimes also can find it is other the large combustion machine for steamer or power station, especially by internal-combustion engine that gas drove, described internal-combustion engine has single current scavenging in one or more firing chambers of internal-combustion engine, and described internal-combustion engine has crosshead construction so that piston rod is connected to bent axle via crosshead and connecting rod, to transverse force is transferred in Structure of Internal-Combustion Engine by crosshead, make piston can be in the situation that there is no transverse force to-and-fro motion in corresponding cylinder.
For transverse force is transferred in Structure of Internal-Combustion Engine via crosshead, the Structure of Internal-Combustion Engine of existing crosshead single current internal-combustion engine comprises guide structure, and described guide structure is for the reciprocating axis guiding crosshead along piston.At for example GB336, in the more early stage crosshead single current internal-combustion engine of 929A, Structure of Internal-Combustion Engine comprises center U shape member, and it is formed for the bearing support of bent axle, and Structure of Internal-Combustion Engine also comprises the guide rail for crosshead at the leg place of " U ".U shape member must be by support construction supports, and described supporting structure around forms around the whole of U shape member, on the top of described supporting structure, cylinder is installed.
In the internal-combustion engine of newer general type, attempt makes the manufacture of Structure of Internal-Combustion Engine and the placement of bent axle become easy.
In such internal-combustion engine, receive therein base plate bent axle or that support the rotationally bent axle top of internal-combustion engine, Structure of Internal-Combustion Engine comprises skeletal container, cylinder framework is installed on the top of described skeletal container, one or more cylinders of described cylinder framework carrying internal-combustion engine or corresponding cylinder liner.On skeletal container, for each crosshead, be formed with guide rail, described guide rail has a plurality of guiding planes on the both sides of bent axle, and described guide rail is along the corresponding crosshead of reciprocating route guidance of corresponding crosshead.
In the internal-combustion engine of so existing crosshead single current type, in each side of the bent axle for each crosshead, be formed with two lateral guide planes, wherein, leading wall has for the guiding plane of a crosshead with for the guiding plane of adjacent crosshead, the described wall of leading is connected to and is led accordingly wall on the opposite side of bent axle by transverse wall, and described transverse wall spreads all over that bent axle laterally extends and by two the guiding plane separation in each in wall of leading that connected at two.
In described each that lead in wall, lead on the back side of wall, be provided with rear transverse wall, described rear transverse wall has extended and has extended the transverse wall that crosses bent axle, and will lead accordingly the back side of wall and the sidewall of skeletal container is connected thus.
Conventionally, two sidewalls of skeletal container are closer to each other on its bottom from skeletal container to the path at the top of skeletal container, to make skeletal container have the shape of " A " shape in the plane of vertically extending with crankshaft center line.
Thus, sidewall is formed for the carrier of the guide rail section of skeletal container.Carrier can also comprise: top plate portion, and described top plate portion is connected the wall of leading in a side of bent axle on the top of skeletal container with corresponding sidewall; And bottom wall portion, described bottom wall portion is connected the sidewall in a corresponding side of guide rail section and bent axle at the bottom place of skeletal container.
In order to strengthen leading being connected between wall and corresponding sidewall in each side of bent axle, and in order to strengthen leading wall self, various suggestions are being proposed in the art.
In the traditional combustion engine of general type, in each in rear transverse wall, be provided with horizontal flank, described horizontal flank by corresponding sidewall with lead accordingly wall and be connected.More at large, flank extends in the plane of or quadrature vertical with the reciprocating path of crosshead.Yet the shortcoming of this design is, on the slip surface of guiding plane, at the lay down location of flank, be formed with rigid region, and between flank, slip surface has less rigidity, and therefore slip surface can be out of shape larger degree than flank whereabouts.Rigid region will cause thinner oil slick thickness, and increased the stress on the white metal that guide block is crosshead.This can cause fatigue crack.
In the effort for addressing this problem, in Japanese patent application No.JP2005113 843A, a kind of triangular design is proposed, wherein, two vertical panels have been added to the back side of leading wall, to make to lead wall and two vertical panels that added have triangular cross section.Thus, guiding plane is strengthened equally along whole working surface, to obtain oil slick thickness more uniformly.Although the triangular design of this geometrical shape is suitable for welding, this triangular design is difficult to build casting core and is difficult to remove the material coming off.
At another kind of structure shown in Japanese patent application JP2011 089429A, wherein, replace the single wall of leading, propose to have the wall member of leading of double wall, wherein, two vertically extending walls interconnect by horizontal flank.Yet this causes the problem identical with above-mentioned traditional design substantially, that is, along the cephalomotor path profile of cross, there is inhomogeneous oil slick thickness.
In another suggestion shown in Japanese patent application JP2004 003 485A, make the cross section of leading wall member of skeletal container there is triangular design, this suggestion has the shortcoming identical with above-mentioned foundry goods.
Leading in wall member of closed triangle form, can not be from three vertically extending wall members of inner side welding of cross section, this is because the inner side that closed triangle is led wall member cannot be touched.In the trial that overcomes this problem, in European patent application EP 2236802A1, propose not allow and at the back side stiffening plate of leading the place, the back side of wall, extend the whole length of vertical-path of the motion of crosshead, but only expectation shifts from crosshead to internal-combustion engine frame the region that has maximum lateral force, extend a bit of length.By this local stiffening, can divide at its top the inner side that gets at the closure reinforcement structure on the back side of leading wall with office, bottom for welding.Yet, strengthen structure longer, the inside that can will touch closing structure in the whole length of weld seam becomes more difficult.In addition, this design has and the above problem identical to the foundry goods described in the triangular design of end with respect to end.On the other hand, it is shorter that structure is strengthened at the back side, less in the effect of strengthening for aspect the guiding plane of crosshead guide block.
Summary of the invention
Therefore, from thering is above the internal-combustion engine of general type of conventional frame case design, the object of the invention is to develop a kind of crosshead single current internal-combustion engine, wherein, the skeletal container of Structure of Internal-Combustion Engine can more easily be manufactured, and the selection for manufacture method has higher degrees of freedom, and guiding plane is enhanced to higher degree simultaneously, and along the Stiffness Distribution in the cephalomotor path of cross, has the uniformity of higher level.
This object is by realizing in the feature described in claim 1.
According to the present invention, each of skeletal container led wall and had two reinforcing flank walls, and described two reinforcing flank walls are outstanding in the relative side at corresponding rear transverse wall towards corresponding sidewall, that is, rear transverse wall connects with corresponding sidewall leading wall.That is, two reinforcing flank walls are given prominence to from leading the back side of wall.In addition, reinforcing flank wall for two laterally extends along the cephalomotor path of cross, and be not only positioned at a certain hot zone place, so that along the cephalomotor path of cross everywhere, each lead wall and two reinforce flank wall with the vertically arranged plane in the cephalomotor path of cross in form the U shape cross section of opening.
Advantageously, to realize whole slip surface be that guiding plane has equal rigidity in the design of the present invention of leading wall section of the skeletal container by crosshead single current internal-combustion engine.Meanwhile, about building casting core and removing the U shape cross section that the material aspect coming off produces opening aptly.And, if reinforcing flank wall and/or rear transverse wall should be soldered on the back side of leading wall, because weld seam can be set on each both sides that reinforce flank wall and also can be set on the both sides of rear transverse wall, about welding aspect, also produce more aptly the U shape cross section of opening.
" the U shape cross section of opening " means according to application, reinforce flank wall and arrange abreast for two that face with each other, or even more advantageously, face with each other two reinforce flank walls for foundry goods and also for the surface such and the distance of leading to be arranged so that for the accessibility of the weld seam between the back side of wall between these surfaces along with increasing from leading the distance of wall.That is, U shape cross section is opening still not advantageously, and is that opening launches.
If each in horizontal flank is connected with rear transverse wall with that two are reinforced in flank walls from rear transverse wall extension, will be more favourable.The reinforcement flank of flatly arranging, or more at large, the reinforcement flank of vertically arranging with the cephalomotor path of cross of guiding can extend in the whole distance between sidewall and the corresponding back side of leading wall.Yet, in many cases, this is unnecessary and is enough, if horizontal flank by rear transverse wall with reinforce that flank wall is connected and another horizontal flank on the opposite side of rear transverse wall is connected the opposite side of described rear transverse wall and another reinforcing flank wall.If the place, both sides at rear transverse wall, the edge at the back side of leading wall by opening and with horizontal ribs part from, such opening can form by casting, to make opening have the through hole for stay-bolt, described stay-bolt extends to the bedframe side of skeletal container by skeletal container from cylinder frame side.For by bedframe, skeletal container together with cylinder frame installation, stay-bolt can be screwed onto in the tapped hole in bedframe, and can be by the corresponding cylinder framework place that is bolted to.
Especially, in the situation that stringer portion be soldered to after transverse wall and corresponding reinforcing flank wall, if not only separated by the opening of horizontal flank with the edge between rear transverse wall at the back side of leading wall, and also separated by the opening of horizontal flank with the whole back portion of leading wall between rear transverse wall at reinforcing flank wall, and even more preferably, also separated by the opening of horizontal flank in the face of the reinforcing flank wall surface of rear transverse wall, will be more favourable.By this design, can avoid by being welded to and leading the localized stress that wall causes and maximize strengthening flank.In addition guarantee in accessibility between stringer portion and rear transverse wall and that strengthening flank and reinforcing the weld seam between flank wall.
Described have being configured to duplex pull rod bolt of opening and make on the both sides of rear transverse wall, after each, in each side of transverse wall, has a stay-bolt.Yet, because stay-bolt in many structures must be screwed in the cartridge housing in bedframe, and cartridge housing thickness is to keep limited factor to guarantee less engine size, so in some structure, after each, the simplex pull rod bolt at transverse wall place will be than duplex pull rod bolt structure more preferably.For this reason, rear transverse wall can have tube wall segmentation, and described tube wall segmentation is formed for the through hole of simplex pull rod bolt.That is, rear transverse wall can have plain wall section, and described plain wall section extends between the tube wall segmentation of sidewall and tubular portion or rear transverse wall, and tubular portion can be arranged to and lead wall another plain wall section adjacent or by rear transverse wall and be connected to and lead wall.
If only must be suitable for the diameter of stay-bolt at the through hole of the top plate portion office of skeletal container and the through hole in the base plate office of skeletal container, strengthen opening in flank and can be cast and not need after casting and repair.
In addition, because skeletal container can have top plate portion and floor portion or bottom side wing part, should understand, reinforcing flank wall can not extend in top plate portion or floor portion, but two extension parts of reinforcing flank walls remain substantially laterally along the cephalomotor whole path of cross, and must in this meaning, understand term " along the cephalomotor path of cross everywhere ".In addition, in many cases, lead the just in time bottom that wall does not extend to skeletal container, but only extend to the underpart above the floor portion of skeletal container slightly, this is because the crosshead guide block in guide rail to be supported starts to move upward from this lower end.Therefore, to it must be understood that, the cephalomotor path of cross can not start at the place, just in time bottom of skeletal container, but slightly just in time the starting above bottom of skeletal container, and term " cephalomotor path is everywhere along cross " can not be included in the bottom of skeletal container and lead the distance between the underpart of wall.
In order especially to reinforce, have extra high, to treat to transfer to from crosshead the lateral force of Structure of Internal-Combustion Engine hot zone, two length of reinforcing flank walls and/or width can change on the height of the length of guiding plane.Can also under exception, make two length of reinforcing flank walls can be shorter than the length of corresponding guiding plane, so that only at hot zone place stiffening frame case.
Because the cross section with opening form leading the place, the back side of wall is particularly suitable for casting, skeletal container is whole or at least do not have the skeletal container of its top plate portion to make integral piece by steel mould.
Yet as in crosshead single current internal-combustion engine, piston bore can have the diameter of about 0.26 meter to 0.50 meter, and skeletal container can have corresponding diameter, but can be difficult to form huge like this mold form.Therefore, skeletal container can not be cast into integral piece, but only the guiding plane member of skeletal container inside is cast into integral piece.
In one of super measurement of coordinates favourable further development, skeletal container can comprise the guiding plane member of being made integral piece by steel mould, and wherein each guiding plane member comprises: transverse wall; Lead wall for two that by transverse wall, connect; From two each outstanding two who leads wall that connected, reinforce flank wall.Because guiding plane member will have such cross section in the plane vertical with crosshead moving direction, that is, described cross section is especially opening at the place, the back side that leads wall throughout, so easily cast this guiding plane member.Preferably, the guiding plane member of single type casting can also comprise rear transverse wall or at least one section of the rear transverse wall of leading each connection in wall that has been connected with two.More preferably, the guiding plane member of single type casting can also comprise reinforcement flank, and described reinforcement flank is by each and corresponding reinforcing flank wall connection in transverse wall after two or transverse wall section.Such guiding plane member can be soldered to the side wall side section of skeletal container,, after described guiding plane member comprises transverse wall in the situation that, described guiding plane member is welded direct to sidewall, if or described guiding plane member only comprises a plurality of sections of rear transverse wall really, described guiding plane member is soldered to the side wall side section of transverse wall, if or described guiding plane member really do not comprise transverse wall, described guiding plane member is soldered to the transverse wall that is connected to sidewall.
In another favourable further development, skeletal container can comprise such guiding plane member,, each in described guiding plane member made integral piece by steel mould, wherein, each guiding plane member only comprises two reinforcing flank walls of leading wall and giving prominence to from leading wall, to make each guiding plane member in the form of the U shape cross section with opening along the cephalomotor path of cross everywhere.Each in the guiding plane member so forming can be soldered to corresponding transverse wall and corresponding rear transverse wall and corresponding reinforcement flank.
In another favourable further development, skeletal container can comprise the guiding plane member of being made integral piece by steel mould, and wherein each guiding plane member comprises: lead in wall; From leading two outstanding reinforcing flank walls of wall; Be connected to lead wall rear transverse wall lead wall side section; Also preferably strengthen flank, wherein, strengthen flank the wall side section of leading of rear transverse wall is connected with two reinforcing flank walls of corresponding guiding plane member.Then, the form of the E shape cross section everywhere with opening along cross cephalomotor path of each guiding plane member the position except reinforcement flank.Then, each guiding plane member can be soldered to transverse wall, and described transverse wall connects this guiding plane member with the corresponding guiding plane member on the opposite side of bent axle.And, the side wall side section of transverse wall after each guiding plane member can be on its back side be soldered to together with wall side section with leading of transverse wall thereafter.
In another favourable further development, guiding plane member includes flat metal parts, described flat metal parts are for example metal bar or sheet metal, described flat metal parts are bent, to described flat metal parts comprised lead wall and lead outstanding two of wall and reinforce flank walls from described.Metal parts can form in side and be provided with sliding layer at its guiding plane before bending, to make, with the outer surface of post-reinforcing flank wall, was also provided with sliding layer.Then, the form by the formed guiding plane member of bending at the U shape cross section everywhere with opening along the cephalomotor path of cross, and can be soldered to transverse wall, rear transverse wall and strengthen flank.
In another favourable further development of the present invention, only a small amount of unit mainly forms independent Cast Steel or analog, and those unit,, leads wall, transverse wall and reinforcing flank wall that is, is then welded together.Rear transverse wall also can be provided with reinforcement flank by welding, and can be soldered to corresponding wall and the corresponding sidewall of leading, and wherein, reinforces flank wall and also can be connected to reinforcement flank by welding.
Accompanying drawing explanation
Below, be explained with reference to the drawings the preferred embodiments of the present invention.
Fig. 1 illustrates according to the schematic side elevation of the lower middle portion of the internal-combustion engine of the first embodiment of the present invention;
Fig. 2 illustrates the perspective view of the skeletal container of the internal-combustion engine shown in Fig. 1;
Fig. 3 is illustrated according to the horizontal cross of the guide rail structure of the skeletal container inside of prior art;
Fig. 4 is illustrated according to another guide rail structure of the skeletal container inside of another prior art, corresponding with view in Fig. 3 view;
Fig. 5 is illustrated in view guide rail structure, corresponding with Fig. 3 and 4 of the skeletal container inside shown in Fig. 2;
Fig. 6 illustrates the horizontal partial sectional view of guide rail structure according to another embodiment of the invention;
Fig. 7 illustrates the horizontal partial sectional view of another guide rail structure according to still another embodiment of the invention; With
Fig. 8 illustrates the horizontal partial sectional view of another guide rail structure according to still another embodiment of the invention.
Embodiment
Referring now to Fig. 1, wherein by 1 indication bent axle.Bent axle 1 is supported in bearing rotationally, the machinery bed of Structure of Internal-Combustion Engine or the parts of bedframe 5 of the crosshead single current internal-combustion engine shown in described bearing forms.Not shown piston, described piston is connected to the crank pin of bent axle 1 by piston rod 4, crosshead 3 and connecting rod 2.Crosshead 3 is guided along guiding plane 8, and described guiding plane 8 extends vertically on the both sides of bent axle 1, that is, described guiding plane 8 is laterally to extend along the cephalomotor direction of cross and with respect to bent axle 1.Guiding plane 8 is formed on generally in the skeletal container by 6 indications, and described skeletal container 6 is installed on bedframe 5.On skeletal container 6, unshowned cylinder section or the cylinder framework of internal-combustion engine is installed.
Skeletal container 6 shown in Figure 2.Skeletal container 6 comprises two sidewalls 10, and described two sidewalls 10 extend upward toward each other obliquely from the bottom of skeletal container 6, to observe skeletal container and have the form of " A " along the direction of bent axle 1.Between sidewall 10, sidewall 10 is furnished with and is provided with some guide rail structures, and described some guide rail structures illustrate in further detail in Fig. 5.On the top of sidewall 10, by guide rail structure, surrounded and by transverse wall 7, on the both sides of four Vertical Channel separated from one another, be furnished with top board 16, described transverse wall 7 forms a part for guide rail structures.
Referring now to Fig. 3 to Fig. 5 discussion, by the guide rail structure comparison of the prior art shown in the guide rail structure according to an embodiment of the invention shown in Fig. 5 and Fig. 3 and Fig. 4.
Conventionally, in the prior art or in an embodiment of the present invention, each crosshead in each side of bent axle by two guiding planes 8 ", 8 ', 8 support wherein, guiding plane 8 ", 8 ', 8 be formed in couples lead wall 9 ", on 9 ', 9.Each leads wall 9 ", 9 ', 9 by the transverse wall 7 that crosses bent axle and extend ", 7 ', the 7 corresponding walls 9 of leading that connect on the opposite side of bent axles ", 9 ', 9; wherein; transverse wall 7 ", 7 ', 7 will lead wall 9 at each ", two guiding planes 8 on 9 ', 9 ", 8 ', 8 separated from one another, to make a guiding plane 8 ", 8 ', 8 for a crosshead, make another guiding plane 8 ", 8 ', 8 for adjacent crosshead.Leading wall 9 ", on each the back side in 9 ', 9;; leading wall 9 ", each the corresponding sidewall 10 in the face of skeletal container in 9 ', 9 ", in a side of 10 ', 10, as the transverse wall 7 of corresponding vertical extension ", the rear transverse wall 11 of 7 ', 7 extending portion ", 11 ', 11 will lead accordingly wall 9 ", 9 ', 9 with corresponding sidewall 10 ", 10 ', 10 connections.
Up to the present, the guide rail structure shown in Fig. 3 to Fig. 5 is not distinguished from each other.Yet, for leading wall 9 ", 9 ', 9 reinforcing aspect and there is difference for aspect the reinforcing of the supporting element in skeletal container;, for leading wall 9 ", 9 ', 9 reinforcing aspect and against sidewall 10 ", there is difference for the reinforcing aspect of 10 ', 10 supporting element.
In the existing guide rail structure shown in Fig. 3, lead wall 9 " upper by stringer portion 13 overleaf " be supported on sidewall 10 " go up described reinforcement flank 12 " be also connected to rear transverse wall 11 ".This structure has following shortcoming, that is, at horizontal flank 13 " position lead wall 9 " ratio of rigidity there is no horizontal flank 13 " position lead wall 9 " rigidity high.This causes guiding plane 8 " on film distribution inhomogeneous.
In order to overcome this problem, in the existing guide rail structure shown in Fig. 4, use the back side to lead the triangular design of wall supporting element.That is, the dunnage 12 ' that out of plumb ground extends is soldered to the back side of leading wall 9 ' at one end thereof place, and transverse wall 11 ' is upper after its another end is soldered to, to form triangle in cross section.By this design, overcome the inhomogeneous problem of wall 9 ' rigidity of leading.Yet leg-of-mutton closed cross-section is unsuitable for casting guide rail structure.Therefore, as shown in Figure 4, plate 12 ' must be soldered in its suitable position.Can not on the inner side of triangular cross section, carry out corresponding welding, make to endeavour to ensure according to the operating time quality of the weld seam on the outside of triangular cross section.
Guide rail structure according to an embodiment of the invention shown in Fig. 5 is molded or is cast as integral piece together with sidewall 10 and another guide rail structure of the skeletal container 6 of cast steel.That is, skeletal container 6 is cast into integral piece.At each, lead on the back side of wall 9, reinforce flank wall 12 for two and give prominence to towards corresponding sidewall 10.Thereby the level cross-sectionn in the region of leading wall 9 has the form of " E " of opening, " E " of described opening reinforces flank wall 12 and forms at described two rear transverse walls 11 of reinforcing between flank walls 12 by leading wall 9, two.Thus, obtain leading preferably the wall rigidity of wall 9, and simultaneously the opening of cross section allows casting, this is aspect the overall stiffness of skeletal container 6 and be favourable aspect satisfiable tolerance.
By stringer portion 13, realize sidewall 10 and the further reinforcing being connected of leading between wall 9, described stringer portion 13 connect corresponding sidewall 10, corresponding after transverse wall 11 and two corresponding reinforcing flank walls 12, and described stringer portion 13 also only indirectly connects and leads accordingly wall 9 by these walls.
Strengthen flank 13 by opening 15 with to lead wall 9 separated, described opening 15 has formed during casting and with the through hole that acts on stay-bolt 14, cylinder framework, skeletal container 6 and bedframe 5 are mounted together by described stay-bolt 14.Opening 15 on horizontal flank is formed with the diameter that is greater than stay-bolt 14, and referring to Fig. 2, only the size of the through hole 17 in the top board 16 of skeletal container 6 and the through hole 18 in the bottom side wing part of skeletal container 6 is set for for stay-bolt 14.Therefore, need to finishing after casting for opening 15, but only through hole 17 and through hole 18 need to repair.
If really cannot, as by molded, whole skeletal container 6 being integrally formed part and forming larger parts, can use in the alternate embodiments of the present invention shown in Fig. 6 to Fig. 8.
In the embodiment shown in Fig. 6, guiding plane member 30 is by the molded cast steel part that forms as one, and described guiding plane member 30 comprises: what have two guiding planes leads wall 39; Reinforce flank walls 32 for two that on the back side of leading wall 39, towards sidewall, give prominence to; Rear transverse wall 31,34 lead wall side section 34; With horizontal flank 33.Then, guiding plane member 30 is inserted in the appropriate location in skeletal container, and by the side wall side section 31 that wall side section 34 is soldered to rear transverse wall 31,34 of leading of transverse wall 31,34 thereafter.On front, that is, on the face of guiding plane, guiding plane member is connected to transverse wall member by welding, and between guiding plane member 30 in a side of bent axle and another guiding plane member 30 on the opposite side at bent axle, forms transverse wall 37.
In the alternative embodiment shown in Fig. 7, the guiding plane member 50 of the part that forms as one only comprises leads wall 59 and two the outstanding reinforcing flank walls in the back side of leading wall 59.Guiding plane member 50 by metal bar by by two reinforce the bending of flank wall about 90 ° form.As seen by a dotted line, before bending, the metal bar that forms guiding plane member applies with sliding coating, to good sliding characteristics is provided on its guiding plane.Guiding plane member 50 is soldered to transverse wall 37 and rear transverse wall 51, and is also soldered to stringer portion 53.If there is no ability casting, can use this embodiment.Yet, at rear transverse wall 51 and the weld seam of leading between the back side of wall 59, may be difficult to be touched, if make to have ability casting, the embodiment shown in Fig. 6 will be favourable.
In order to overcome rear transverse wall 51 and to lead the Reachability question of the weld seam between the back side of wall, another feasible program is that reinforcing flank wall 72 is also welded to and leads wall 79, as can be referring to Fig. 8.Then, can first rear transverse wall 51 be welded to and lead wall 79, and subsequently two reinforcing flank walls 72 are welded to and lead wall 79.
In the accompanying drawings, circular open is depicted as the through hole for stay-bolt.Yet, if opening has different forms, be also preferred.A kind of in described opening form indicated by dotted line in Fig. 8.That is, the opening 75 in the embodiment of Fig. 8 will be strengthened flank 73 and to lead wall 79 separated and also separated with two surfaces in the face of rear transverse wall 51 that reinforce flank walls 72 by strengthening flank 73.Thus, can avoid the localized stress being caused by welding to maximize, and still realize the function of support reinforcing flank simultaneously, that is, realize the function of strengthening guide rail structure.
In the embodiment shown in Fig. 6, by dotted line, indicated the form of preferred opening 35.Opening 35 can mainly be formed the form of about quadrant in the casting of leading wall member 30 is processed, this quadrant by stringer portion 33 in the edge separation of leading between wall 39 and rear transverse wall 31,34.The stringer portion 33 of the guiding plane member 30 shown in Fig. 6 is shorter as compared with the embodiment as shown in Fig. 8 with Fig. 7, and be free of attachment to the corresponding sidewall of skeletal container, but be only connected to and the form as one side wall side end of leading wall side section 34 of transverse wall 31,34 part, rear of guiding plane member 30.
Various modifications can expected without departing from the scope of the invention.
Claims (11)
1. crosshead single current internal-combustion engine, it has,
Bent axle (1), described bent axle (1) is by a plurality of piston actuated, the to-and-fro motion and be connected to described bent axle (1) via crosshead (3) in cylinder of each in described a plurality of pistons, and
Structure of Internal-Combustion Engine, described Structure of Internal-Combustion Engine has: bedframe (5), it supports described bent axle (1) rotationally; Skeletal container (6) on described bedframe (5), it is for guiding the to-and-fro motion of a plurality of crossheads (3); With the cylinder framework on described skeletal container (6), it is for carrying a plurality of cylinders,
Described skeletal container (6) is included in the sidewall (10) on the both sides of described bent axle (1), and described sidewall (10) is by rear transverse wall (11; 31; 34; 51) be connected to a plurality of walls (9 of leading; 39; 59; 79),, lead wall (9; 39; 59; 79) each in provides guiding plane (8), and described guiding plane (8) laterally extends along the cephalomotor path of the cross being guided, and from the described wall (9 of leading; 39; 59; 79) each in is extruded with transverse wall (7; 37), described transverse wall (7; 37) with corresponding rear transverse wall (11; 31; 34; 51) aim at, and described transverse wall (7; 37) will be in a side of described bent axle (1) lead wall (9; 39; 59; 79) be connected to the corresponding wall (9 of leading on the opposite side of described bent axle (1); 39; 59; 79), wherein, described rear transverse wall (11; 31; 34; 51) there is the reinforcement flank (13 of vertically arranging with the cephalomotor path of the cross being guided; 33; 53), described in strengthening, lead wall (9; 39; 59; 79) with being connected of described sidewall (10),
It is characterized in that,
Each leads wall (9; 39; 59; 79) all there are two and reinforce flank wall (12; 32; 52; 72), reinforce flank wall (12 for described two; 32; 52; 72) at corresponding rear transverse wall (11; 31; 34; 51) in relative side, towards corresponding sidewall (10), give prominence to and laterally extend along the cephalomotor path of described cross, so that along the cephalomotor path of described cross everywhere, each leads wall (9; 39; 59; 79) and two reinforce flank wall (12; 32; 52; 72) all form the U shape cross section of opening.
2. crosshead single current internal-combustion engine according to claim 1, is characterized in that, at each, leads wall (9; 39; 59; 79) locate, in the face of described rear transverse wall (11; 31; 34; 51) reinforce flank wall surfaces and arrange abreast or be arranged so that described two are reinforced distance between flank wall surfaces along with from the described wall (9 of leading for described two; 39; 59; 79) distance and increasing.
3. crosshead single current internal-combustion engine according to claim 1 and 2, is characterized in that, described reinforcement flank (13; 33; 73) each in be transverse wall (11 from described; 31; 34; 51) extend to reinforce flank wall (12 by described two; 32; 72) one and described rear transverse wall (11 in; 31; 34; 51) connect, wherein, at described rear transverse wall (11; 31; 34; 51) place, both sides, described in lead wall (9; 39; 79) edge at rear portion, and preferably, at described reinforcing flank wall (12; 32; 72) with described rear transverse wall (11; 31; 34; 51) described between, lead wall (9; 39; 79) whole rear portion, and even also more preferably, in the face of described rear transverse wall (11; 31; 34; 51) described reinforcing flank wall surface, by opening (15; 35; 75) and with described horizontal flank (13; 33; 73) separation.
4. according to the crosshead single current internal-combustion engine described in claim 1,2 or 3, it is characterized in that, described bedframe (5), described skeletal container (6) and described cylinder framework are installed by extending through the stay-bolt (14) of described skeletal container (6), described stay-bolt (14) is fixed in described bedframe (5) and is fixed on described cylinder framework place, wherein, described reinforcement flank (13; 33; 53) each in comprises at least one opening (15), so that at described rear transverse wall (11; 31; 34; 51) every side place of each in, at least one in described stay-bolt (14) is conducted through the opening (15) of a series of alignings, and wherein, at described horizontal flank (13; 33; 53) diameter of the described opening (15) at each place in is greater than the diameter of the corresponding through hole (17) of locating in the top plate portion (16) of described skeletal container (6) and at the diameter of the corresponding through hole (18) of the base plate office of described skeletal container (6).
5. according to the crosshead single current internal-combustion engine described in any one of the preceding claims, it is characterized in that, reinforce flank wall (12 for described two; 32; 52; 72) length and/or width change on the height of the length of described guiding plane (8).
6. according to the crosshead single current internal-combustion engine described in any one of the preceding claims, it is characterized in that, described skeletal container (6) is whole or at least do not have the described skeletal container of its top plate portion to make integral piece by steel mould.
7. according to the crosshead single current internal-combustion engine described in any one of the preceding claims, it is characterized in that, described skeletal container comprises the guiding plane member of being made integral piece by steel mould, and wherein, each guiding plane member comprises: in described transverse wall one; Lead wall for described two that by described transverse wall, connect; From described two each outstanding described two who leads wall that connected, reinforce flank wall; Preferably, be connected to described two connected lead each the described rear transverse wall in wall; Further preferably, each in transverse wall after described two reinforced to the reinforcement flanks that flank wall connects with corresponding two, wherein, each guiding plane member is soldered to the side wall side section of described skeletal container.
8. according to the crosshead single current internal-combustion engine described in any one in above claim 1 to 5, it is characterized in that, described skeletal container comprises the guiding plane member of being made integral piece by steel mould, and wherein, each guiding plane member comprises: described in lead in wall; With from described, lead outstanding two of wall and reinforce flank walls, to make each guiding plane member in the form of the U shape cross section with opening along the cephalomotor path of described cross everywhere, wherein, each guiding plane member is soldered to described transverse wall, described rear transverse wall and described reinforcement flank.
9. according to the crosshead single current internal-combustion engine described in any one in above claim 1 to 5, it is characterized in that, described skeletal container comprises the guiding plane member (30) of being made integral piece by steel mould, and wherein, each guiding plane member (30) comprising: described in lead in wall (39); From described two the outstanding reinforcing flank walls (32) of wall (39) of leading; Described rear transverse wall (31,34) lead wall side section (34); With reinforcement flank (33), wherein, described reinforcement flank (33) is by described rear transverse wall (31,34) the wall side section (34) of leading is connected with described two reinforcing flank walls (32), to make the form of the E shape cross section everywhere with opening along described cross cephalomotor path of each guiding plane member the position except described reinforcement flank (33), and wherein, each guiding plane member (30) is soldered to the side wall side section (31) of described transverse wall (37) and described rear transverse wall (31,34).
10. according to the crosshead single current internal-combustion engine described in any one in above claim 1 to 5, it is characterized in that, described skeletal container comprises guiding plane member (50), each guiding plane member (50) forms by the metal bar of bending flat, make described guiding plane member lead in wall (59) one and two described in comprising and reinforce flank wall (52), and make each guiding plane member (50) in the form of the U shape cross section with opening along the cephalomotor path of described cross everywhere, wherein, each guiding plane member (50) is soldered to described transverse wall (37), described rear transverse wall (51) and described reinforcing flank (53).
11. according to the crosshead single current internal-combustion engine described in any one in above claim 1 to 5, it is characterized in that, described wall (79), described transverse wall (37) and the described reinforcement flank wall (72) of leading forms independent Cast Steel, and described independent Cast Steel is welded together, wherein, described each that lead in wall (79) is soldered to corresponding rear transverse wall (51), and each in described reinforcement flank wall (72) is soldered to corresponding reinforcement flank (73).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201300166 | 2013-03-22 | ||
| DK201300166A DK177740B1 (en) | 2013-03-22 | 2013-03-22 | Crosshead uniflow combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104061088A true CN104061088A (en) | 2014-09-24 |
| CN104061088B CN104061088B (en) | 2016-09-07 |
Family
ID=50721411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310718565.9A Active CN104061088B (en) | 2013-03-22 | 2013-12-24 | Crosshead single current internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5567230B1 (en) |
| KR (1) | KR101422140B1 (en) |
| CN (1) | CN104061088B (en) |
| DK (1) | DK177740B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110057A (en) * | 2014-11-04 | 2017-08-29 | 三菱重工业株式会社 | Strengthening part, next door unit, framework and cross-head type internal combustion engine |
| CN111287857A (en) * | 2018-12-10 | 2020-06-16 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6675956B2 (en) * | 2016-08-29 | 2020-04-08 | 三菱重工業株式会社 | Frame and crosshead internal combustion engine |
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| JP4005550B2 (en) * | 2003-10-10 | 2007-11-07 | エムエーエヌ・ディーゼル・エーエス | Engine frame structure |
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- 2013-03-22 DK DK201300166A patent/DK177740B1/en active
- 2013-12-24 CN CN201310718565.9A patent/CN104061088B/en active Active
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- 2014-02-10 KR KR1020140014925A patent/KR101422140B1/en active IP Right Grant
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| EP0774079B1 (en) * | 1992-12-09 | 1998-06-10 | MAN B&W DIESEL A/S | A piston engine of the crosshead type |
| JP2004003485A (en) * | 2002-05-21 | 2004-01-08 | Man B & W Diesel As | Crosshead type large two-stroke internal combustion engine |
| CN1605738A (en) * | 2003-10-10 | 2005-04-13 | 日产自动车株式会社 | Cylinder block for internal-combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107110057A (en) * | 2014-11-04 | 2017-08-29 | 三菱重工业株式会社 | Strengthening part, next door unit, framework and cross-head type internal combustion engine |
| CN107110057B (en) * | 2014-11-04 | 2022-03-01 | 三菱重工业株式会社 | Reinforcing member, partition wall unit, frame, and crosshead internal combustion engine |
| CN111287857A (en) * | 2018-12-10 | 2020-06-16 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
| CN111287857B (en) * | 2018-12-10 | 2021-08-31 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5567230B1 (en) | 2014-08-06 |
| DK177740B1 (en) | 2014-05-19 |
| JP2014185634A (en) | 2014-10-02 |
| KR101422140B1 (en) | 2014-07-22 |
| CN104061088B (en) | 2016-09-07 |
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