WO2012060144A1 - 架構 - Google Patents
架構 Download PDFInfo
- Publication number
- WO2012060144A1 WO2012060144A1 PCT/JP2011/069001 JP2011069001W WO2012060144A1 WO 2012060144 A1 WO2012060144 A1 WO 2012060144A1 JP 2011069001 W JP2011069001 W JP 2011069001W WO 2012060144 A1 WO2012060144 A1 WO 2012060144A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- top plate
- tie bolt
- bolt hole
- frame
- guide bar
- Prior art date
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Classifications
-
- 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
-
- 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
- F02F7/0002—Cylinder arrangements
- F02F7/0007—Crankcases of engines with cylinders in line
-
- 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
- F02F1/00—Cylinders; Cylinder heads
Definitions
- the present invention relates to a frame constituting a large diesel engine for marine use.
- Patent Document 1 As a frame constituting a large-sized diesel engine for marine use, for example, one disclosed in Patent Document 1 is known.
- a frame 31 shown in FIG. 5 has a central partition plate 11 that partitions cylinders, a cam-side partition 12 (see FIG. 2) and an exhaust-side partition 13 (see FIG. 2) disposed on both sides thereof. .
- the horizontal thrust force received from the cross head 4 (see FIG. 1) is transmitted from the central partition plate 11 to the partition walls 12 and 13 through the guide bar (sliding plate) 14.
- the central partition plate 11 and the guide bar 14, the guide bar 14 and the top plate 15, and the guide bar 14 and the top plate 16 are joined by welding.
- the partition walls 12 and 13 and the guide bar 14 serve as members that suppress deformation due to a load such as an in-cylinder pressure and a thrust load acting on the frame 31.
- the top plate 15 above the partition wall 12 and the top plate 16 above the partition wall 13 are each provided with 14 tie bolt holes 17 through which the tie bolts 10 (see FIG. 1) pass (see FIG. 2).
- the same members as those in the embodiments described later are denoted by the same reference numerals as those in the embodiments described later.
- the plates 15 and 16 are respectively provided with rounded portions 32 having a radius R1.
- the rounded portion 32 protrudes from the inside of the top plates 15 and 16 toward the opposing top plates 16 and 15, and the side surface 19a of the protruding portion (tongue piece portion) 19 to which the outer side surface 14a of the guide bar 14 is joined.
- the starting point is located on the same plane as the side surface 14 b of the guide bar 14, and the outer side of the top plates 15 and 16 (outer side surfaces 15 b and 16 b) and the direction away from the tie bolt hole 17 without approaching the tie bolt hole 17
- the end points are formed on the same plane as the inner side surfaces 15a, 16a of the top plates 15, 16.
- the side surface 14b of one guide bar 14 and the side surface 19a of the protruding portion 19, the side surface 14b of the other guide bar 14 and the side surface 19a of the protruding portion 19, and the surface 11a of the central partition plate 11 are parallel to each other.
- the outer surface 14a of the guide bar 14, the inner surface 14c of the guide bar 14, the inner surfaces 15a and 16a of the top plates 15 and 16, and the outer surfaces 15b and 16b of the top plates 15 and 16 are parallel to each other. ing.
- the rounded portion 32 as shown in FIG. 5, the rounded portion 32, the joint between the guide bar 14 and the top plate 15 (more specifically, the protruding portion 19 of the top plate 15), the guide bar 14 and the top. Stress concentrates on the joint with the plate 16 (more specifically, the projecting portion 19 of the top plate 16), and there is a possibility that the round portion 32 and these joints may crack.
- the radius of the rounded portion 42 is set to R2 larger than R1, and the rounded portion 42, the joint between the guide bar 14 and the top plate 15, and the joint between the guide bar 14 and the top plate 16 are used.
- a frame 41 that attempts to reduce concentrated stress is also considered, but in such a frame 41, the outer diameter width of the top plate (the distance between the outer surface 15b of the top plate 15 and the outer surface 16b of the top plate 16). L becomes larger than the frame 31, which is not preferable from the viewpoint of reducing the size and weight of the diesel engine.
- the present invention has been made in view of the above circumstances, and concentrates on the top plate located in the vicinity of the tie bolt hole and the joint between the guide bar and the top plate without causing an increase in size and weight of the diesel engine. It is an object of the present invention to provide a frame that can reduce the stress to be generated and can prevent the top plate and the joint from cracking.
- the present invention employs the following means in order to solve the above problems.
- the frame according to the first aspect of the present invention includes a central partition plate that partitions cylinders, a cam-side partition and an exhaust-side partition disposed on both sides thereof, and is disposed above the central partition plate and the partition. And a top plate having a tie bolt hole formed therein, wherein the top plate located near the tie bolt hole moves away from the top plate and the tie bolt hole without approaching the tie bolt hole.
- a notch portion is provided that draws a 1 ⁇ 4 arc toward the direction and extends 1 ⁇ 4 arc toward the inside of the top plate and the direction away from the tie bolt hole.
- the frame according to the second aspect of the present invention includes a central partition plate that partitions cylinders, a cam-side partition and an exhaust-side partition disposed on both sides thereof, and is disposed above the central partition plate and the partition. And a top plate having a tie bolt hole formed on the top plate located in the vicinity of the tie bolt hole toward the outside of the top plate so as to approach the tie bolt hole.
- Draw 4 arcs draw a 1/4 arc toward the outside of the top plate and away from the tie bolt hole, and make a 1/4 arc toward the inside of the top plate and away from the tie bolt hole A notch that extends is drawn.
- the top plate located in the vicinity of the tie bolt hole has a flexible structure by providing the notch portion.
- the stress concentrated on the joint between the guide bar and the top plate can be reduced (dispersed along the notch), and cracks can be prevented from occurring in the top plate and the joint.
- the diesel engine according to the third aspect of the present invention includes any of the above-described frames.
- the stress concentrated on the top plate located in the vicinity of the tie bolt hole and the joint portion between the guide bar and the top plate is reduced (distributed along the notch portion). And a frame that can prevent the top plate and the joint from being cracked, thereby improving the reliability of the diesel engine.
- the stress concentrated on the top plate located in the vicinity of the tie bolt hole and the joint between the guide bar and the top plate can be reduced without increasing the size and weight of the diesel engine. This produces an effect that it is possible to prevent the top plate and the joint from being cracked.
- FIG. 5 is an enlarged plan view showing the main part of the frame shown in FIG. 5 that is designed to reduce stress concentrated on the top plate located near the tie bolt hole and the joint between the guide bar and the top plate.
- FIG. 1 is a longitudinal sectional view showing a structural example of a marine diesel engine equipped with a frame according to the present invention
- FIG. 2 is a perspective view of the frame according to the present embodiment
- FIG. 3 is an enlarged view of the main part of FIG. It is the top view shown.
- a large diesel engine (crosshead type diesel engine) E is roughly divided into three parts.
- the first is a jacket that houses the cylinder 2 and the piston 3, etc.
- the second is the frame 6 that houses the connecting rod 7 that conducts the force generated by the explosion of the piston 3 to the crankshaft 8, and the third is obtained.
- a base plate 9 that houses a crankshaft 8 that transmits power to a propeller or the like.
- the base plate 9, the frame 6, and the jacket 1 are sequentially stacked and assembled by tightening with a tie bolt 10 that vertically penetrates the entire engine from the upper surface of the jacket 1 to the bottom surface of the base plate 9.
- reference numeral 5 denotes a guide bar (sliding plate) along which the cross head 4 moves up and down.
- the frame 6 includes a central partition plate 11 that partitions cylinders, a cam-side partition wall 12 and an exhaust-side partition wall 13 disposed on both sides thereof.
- the horizontal thrust force received from the cross head 4 is transmitted from the central partition plate 11 to the partition walls 12 and 13 through a guide bar (sliding plate) 14.
- the central partition plate 11 and the guide bar 14, the guide bar 14 and the top plate 15, and the guide bar 14 and the top plate 16 are joined by welding.
- the partition walls 12 and 13 and the guide bar 14 serve as members that suppress deformation due to a load such as an in-cylinder pressure and a thrust load acting on the frame 6.
- the top plate 15 above the partition wall 12 and the top plate 16 above the partition wall 13 are each provided with 14 tie bolt holes 17 through which the tie bolts 10 (see FIG. 1) pass.
- the frame 6 configured in this manner receives the cylinder cylinder pressure and the side thrust force from the cross head 4. Therefore, high stress tends to be generated near the upper and lower ends of the central partition plate 11.
- each of the plates 15 and 16 is provided with a notch 18 having a semicircular shape in plan view.
- the notch 18 protrudes from the inside of the top plates 15, 16 toward the opposing top plates 16, 15, and the side surface 19 a of the projection (tongue piece) 19 to which the outer side surface 14 a of the guide bar 14 is joined.
- the starting point is located on the same plane as the side surface 14 b of the guide bar 14, and the outer side of the top plates 15 and 16 (outer side surfaces 15 b and 16 b) and the direction away from the tie bolt hole 17 without approaching the tie bolt hole 17
- a quarter arc is drawn toward the inside of the top plates 15 and 16 (inner side surfaces 15a and 16a) and away from the tie bolt hole 17, and a quarter arc is drawn toward the inside of the top plates 15 and 16.
- the end point is on the same plane as the inner side surfaces 15a, 16a of the top plates 15, 16 position It is formed in so that.
- the side surface 14b of one guide bar 14 and the side surface 19a of the protruding portion 19, the side surface 14b of the other guide bar 14 and the side surface 19a of the protruding portion 19, and the surface 11a of the central partition plate 11 are parallel to each other.
- the outer surface 14a of the guide bar 14, the inner surface 14c of the guide bar 14, the inner surfaces 15a and 16a of the top plates 15 and 16, and the outer surfaces 15b and 16b of the top plates 15 and 16 are parallel to each other. ing.
- the top plate 15, 16 located in the vicinity of the tie bolt hole 17 becomes a flexible structure by providing the notch portion 18, so the top plate 15, located in the vicinity of the tie bolt hole 17, 16 and the stress concentrated on the joint between the guide bar 14 and the top plates 15 and 16 can be reduced (distributed along the notches 18), and cracks are generated in the top plates 15 and 16 and the joints. Can be prevented.
- FIG. 4 is an enlarged plan view showing the main part of the frame according to the present embodiment.
- the frame 21 according to the present embodiment is different from that of the first embodiment described above in that a cutout portion 22 is provided instead of the cutout portion 18. Since other components are the same as those of the first embodiment described above, description of these components is omitted here.
- symbol is attached
- the notch 22 protrudes from the inside of the top plates 15, 16 toward the opposing top plates 16, 15, and a protruding portion (tongue piece) to which the outer surface 14 a of the guide bar 14 is joined.
- Portion) 19 and the side surface 14b of the guide bar 14 are flush with the tie bolt hole 17 so that the starting point is located on the same plane as the side surface 19a and the side surface 14b of the guide bar 14 (outside surfaces 15b and 16b).
- a quarter arc is drawn toward the top, and a quarter arc is drawn toward the outside of the top plates 15 and 16 (outside surfaces 15b and 16b) and away from the tie bolt holes 17, and the top plates 15 and 16 are drawn.
- the shortest distance between the tie bolt hole 17 and the notch 22 is shorter than the notch 18 of the first embodiment, and the length of the curved portion of the notch 22 is the first. Since it becomes longer than the notch part 18 of 1st Embodiment, the stress concentrated on the top plate 15 and 16 located in the vicinity of the tie-bolt hole 17 and the junction part of the guide bar 14 and the top plate 15 and 16 is 1st Embodiment. Can be reduced (dispersed along the notch 22), and cracks can be prevented from occurring in the top plates 15, 16 and the joint.
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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)
- Connection Of Plates (AREA)
Abstract
Description
なお、図5において後述する実施形態と同一の部材には、後述する実施形態と同一の符号を付している。
なお、一方のガイドバー14の側面14bおよび突出部19の側面19aと、他方のガイドバー14の側面14bおよび突出部19の側面19aと、中央仕切り板11の表面11aとは、互いに平行をなし、ガイドバー14の外側面14aと、ガイドバー14の内側面14cと、天板15,16の内側面15a,16aと、天板15,16の外側面15b,16bとは、互いに平行をなしている。
本発明の第一の態様に係る架構は、シリンダ間を仕切る中央仕切り板と、その両側に配置されたカム側の隔壁および排気側の隔壁と、これら中央仕切り板および隔壁の上側に配置されるとともに、タイボルト穴の形成された天板とを備えた架構であって、前記タイボルト穴の近傍に位置する天板に、前記タイボルト穴に近づくことなく前記天板の外方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描き、前記天板の内方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描いて延びる切欠部が設けられている。
図1において、符号5はガイドバー(摺動板)で、これに沿ってクロスヘッド4が上下するようになっている。
なお、このように構成された架構6では、シリンダ筒内圧、およびクロスヘッド4からのサイドスラスト力を受ける。そのため、中央仕切り板11の上端・下端付近で高応力が発生しやすい傾向にある。
なお、一方のガイドバー14の側面14bおよび突出部19の側面19aと、他方のガイドバー14の側面14bおよび突出部19の側面19aと、中央仕切り板11の表面11aとは、互いに平行をなし、ガイドバー14の外側面14aと、ガイドバー14の内側面14cと、天板15,16の内側面15a,16aと、天板15,16の外側面15b,16bとは、互いに平行をなしている。
本実施形態に係る架構21は、切欠部18の代わりに、切欠部22が設けられているという点で上述した第1実施形態のものと異なる。その他の構成要素については上述した第1実施形態のものと同じであるので、ここではそれら構成要素についての説明は省略する。
なお、上述した第1実施形態と同一の部材には同一の符号を付している。
11 中央仕切り板
12 隔壁
13 隔壁
15 天板
16 天板
17 タイボルト穴
18 切欠部
21 架構
22 切欠部
31 架構
41 架構
E ディーゼルエンジン
Claims (3)
- シリンダ間を仕切る中央仕切り板と、その両側に配置されたカム側の隔壁および排気側の隔壁と、これら中央仕切り板および隔壁の上側に配置されるとともに、タイボルト穴の形成された天板とを備えた架構であって、
前記タイボルト穴の近傍に位置する天板に、前記タイボルト穴に近づくことなく前記天板の外方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描き、前記天板の内方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描いて延びる切欠部が設けられている架構。 - シリンダ間を仕切る中央仕切り板と、その両側に配置されたカム側の隔壁および排気側の隔壁と、これら中央仕切り板および隔壁の上側に配置されるとともに、タイボルト穴の形成された天板とを備えた架構であって、
前記タイボルト穴の近傍に位置する天板に、前記タイボルト穴に近づくようにして前記天板の外方に向かって1/4円弧を描き、前記天板の外方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描いて、前記天板の内方および前記タイボルト穴から遠ざかる方に向かって1/4円弧を描いて延びる切欠部が設けられている架構。 - 請求項1または2に記載の架構を具備してなるディーゼルエンジン。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137001129A KR101413335B1 (ko) | 2010-11-05 | 2011-08-24 | 프레임 |
CN201180036410.6A CN103026039B (zh) | 2010-11-05 | 2011-08-24 | 框架和具有该框架的柴油发动机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2010-248520 | 2010-11-05 | ||
JP2010248520A JP5713628B2 (ja) | 2010-11-05 | 2010-11-05 | 架構 |
Publications (1)
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WO2012060144A1 true WO2012060144A1 (ja) | 2012-05-10 |
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ID=46024266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/069001 WO2012060144A1 (ja) | 2010-11-05 | 2011-08-24 | 架構 |
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JP (1) | JP5713628B2 (ja) |
KR (1) | KR101413335B1 (ja) |
CN (1) | CN103026039B (ja) |
WO (1) | WO2012060144A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6275611B2 (ja) * | 2014-09-26 | 2018-02-07 | 三菱重工業株式会社 | ガイド板、隔壁ユニット、架構及びクロスヘッド式内燃機関 |
JP6675956B2 (ja) * | 2016-08-29 | 2020-04-08 | 三菱重工業株式会社 | 架構及びクロスヘッド式内燃機関 |
JP7403321B2 (ja) * | 2020-01-10 | 2023-12-22 | 株式会社ジャパンエンジンコーポレーション | 架構 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001289114A (ja) * | 2000-04-07 | 2001-10-19 | Mitsubishi Heavy Ind Ltd | ディーゼルエンジン |
JP2004003484A (ja) * | 2002-05-21 | 2004-01-08 | Man B & W Diesel As | コンパクトな掃気タンクおよびシリンダフレーム |
JP2010144719A (ja) * | 2008-12-18 | 2010-07-01 | Waertsilae Schweiz Ag | クロスヘッド型の大型ディーゼルエンジン |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1999350A (en) * | 1929-08-03 | 1935-04-30 | Sulzer Ag | Frame for reciprocating engines |
GB615201A (en) * | 1945-08-11 | 1949-01-03 | Mark Ferdinand Meinertz | Improvements in and relating to frames for vertical piston engines |
DE3512347C1 (de) * | 1985-04-01 | 1986-10-30 | Gebrüder Sulzer AG, Winterthur | Ständer mit einer Abstützung der Kreuzkopfgleitbahnen |
DK171284B1 (da) * | 1992-11-24 | 1996-08-19 | Man B & W Diesel Gmbh | Totakts forbrændingsmotor af krydshovedtypen |
JP4005550B2 (ja) * | 2003-10-10 | 2007-11-07 | エムエーエヌ・ディーゼル・エーエス | エンジンフレーム構造 |
JP4498255B2 (ja) * | 2005-09-30 | 2010-07-07 | 富士重工業株式会社 | 金属基複合材形成用鉄系プリフォーム及び該鉄系プリフォームを有するジャーナル部構造 |
-
2010
- 2010-11-05 JP JP2010248520A patent/JP5713628B2/ja active Active
-
2011
- 2011-08-24 CN CN201180036410.6A patent/CN103026039B/zh active Active
- 2011-08-24 KR KR1020137001129A patent/KR101413335B1/ko active IP Right Grant
- 2011-08-24 WO PCT/JP2011/069001 patent/WO2012060144A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001289114A (ja) * | 2000-04-07 | 2001-10-19 | Mitsubishi Heavy Ind Ltd | ディーゼルエンジン |
JP2004003484A (ja) * | 2002-05-21 | 2004-01-08 | Man B & W Diesel As | コンパクトな掃気タンクおよびシリンダフレーム |
JP2010144719A (ja) * | 2008-12-18 | 2010-07-01 | Waertsilae Schweiz Ag | クロスヘッド型の大型ディーゼルエンジン |
Also Published As
Publication number | Publication date |
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KR20130040225A (ko) | 2013-04-23 |
JP2012097715A (ja) | 2012-05-24 |
KR101413335B1 (ko) | 2014-06-27 |
JP5713628B2 (ja) | 2015-05-07 |
CN103026039A (zh) | 2013-04-03 |
CN103026039B (zh) | 2014-12-10 |
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