JP3289756B2 - Cooling bolt - Google Patents
Cooling boltInfo
- Publication number
- JP3289756B2 JP3289756B2 JP24571694A JP24571694A JP3289756B2 JP 3289756 B2 JP3289756 B2 JP 3289756B2 JP 24571694 A JP24571694 A JP 24571694A JP 24571694 A JP24571694 A JP 24571694A JP 3289756 B2 JP3289756 B2 JP 3289756B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- hole
- cooling
- low
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Connection Of Plates (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷却ボルトに関するもの
で、詳しくは、低温高圧側の部材と高温低圧側の部材と
をナットと螺合することによって締結するボルトであっ
て、低温側の空気を冷媒として高温側に導入してボルト
本体の高温側を冷却するようにしたボルトに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling bolt, and more particularly, to a bolt for fastening a member on a low temperature and high pressure side and a member on a high temperature and low pressure side by screwing with a nut. As a refrigerant to a high temperature side to cool the high temperature side of the bolt body.
【０００２】[0002]
【従来の技術】従来から、強度が非常に低下したり、あ
るいはねじ部のかじりが心配になるような高温部には、
ボルトを配置しないような設計にしている。2. Description of the Related Art Conventionally, in a high-temperature portion where the strength is extremely reduced or a thread portion is worried about galling,
The design is such that no bolts are placed.
【０００３】[0003]
【発明が解決しようとする課題】前述のように、従来
は、高温部には、ボルトを使用しないような設計をして
いるので、部品の構成や組立の制限により、設計の幅が
非常に狭いという問題点があった。本発明は、このよう
な問題点を解決しようとするものである。すなわち、本
発明は、高温部にも配置することができるようにした冷
却ボルトを提供することを目的とするものである。As described above, conventionally, a bolt is not used in a high-temperature portion. Therefore, the design range is extremely limited due to restrictions on the structure and assembly of parts. There was a problem that it was narrow. The present invention is intended to solve such a problem. That is, an object of the present invention is to provide a cooling bolt that can be arranged even in a high-temperature portion.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
本発明は、低温高圧側の部材（１）と高温低圧側の部材
（２）とをナット（１０）と螺合することによって締結
するボルトであって、ボルト本体（３）は、その中央軸
心（６）に設けられボルト本体の先端部（４）から頭頂
面（８）に至る冷却用貫通孔（７）と、該冷却用貫通孔
に十字状に交差してボルト本体の頭部（５）に設けられ
た分岐貫通孔（９）と、を有し、低温高圧側に位置する
前記先端部から高温低圧側に位置する前記頭部へ向けて
冷却用貫通孔および分岐貫通孔を通じて空気を流すもの
とした。In order to achieve the above object, according to the present invention, a member (1) on the low temperature and high pressure side and a member (2) on the high temperature and low pressure side are fastened by screwing with a nut (10). A bolt through which a cooling through hole (7) is provided at the center axis (6) and extends from the tip (4) of the bolt body to the top surface (8); A branch through-hole (9) provided in the head (5) of the bolt body so as to cross in a cross shape with the through-hole, and the tip located from the low-temperature high-pressure side to the high-temperature low-pressure side. Air was allowed to flow through the cooling through-hole and the branch through-hole toward the head.
【０００５】[0005]
【作用】本発明によれば、低温高圧側の部材と高温低圧
側の部材とをナットと螺合することによって締結するボ
ルトであって、ボルト本体の中央軸心に設けられボルト
本体の先端部から頭頂面に至る冷却用貫通孔および、該
冷却用貫通孔に十字状に交差してボルト本体の頭部に設
けられた分岐貫通孔とを有するので、低温高圧側の前記
先端部から高温低圧側の前記頭部へ前記冷却用貫通孔お
よび前記分岐貫通孔を通じて空気が流れるので、ボルト
本体の高温側が冷却される。According to the present invention, a bolt for fastening a member on the low-temperature and high-pressure side and a member on the high-temperature and low-pressure side by screwing with a nut is provided at the center axis of the bolt body. And a branch through-hole provided in the head of the bolt body so as to cross the cooling through-hole in a cross shape, so that the high-temperature low-pressure Since the air flows through the cooling through-hole and the branch through-hole to the head on the side, the high temperature side of the bolt body is cooled.
【０００６】[0006]
【実施例】図１は本発明の一実施例を示した縦断側面
図、図２は図１のボルト本体の平面図である。図１にお
いて、１はジェットエンジンのインナーケースなどの低
温高圧側の部材、２は同じくテールコーンなどの高温低
圧側の部材、３は前記両部材１，２を締結するボルトの
ボルト本体、４は該ボルト本体３の先端部、５は同じく
頭部、６は同じく中央軸心、７は後述する冷却用貫通
孔、８は該頭部５の頭頂面、９は後述する分岐貫通孔、
１０は該ボルト本体３に螺合しているセルフロッキング
ナット、１１は該ナット１０のセルフロック部である。FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention, and FIG. 2 is a plan view of a bolt body of FIG. In FIG. 1, reference numeral 1 denotes a member on the low temperature and high pressure side such as an inner case of a jet engine, 2 denotes a member on the high temperature and low pressure side such as a tail cone, 3 denotes a bolt body of a bolt for fastening the members 1 and 4, The tip of the bolt body 3, 5 is also a head, 6 is also a center axis, 7 is a cooling through hole described later, 8 is a top surface of the head 5, 9 is a branch through hole described later,
Reference numeral 10 denotes a self-locking nut screwed to the bolt body 3, and reference numeral 11 denotes a self-locking portion of the nut 10.
【０００７】すなわち、ボルト本体３の中央軸心６に、
先端部４から頭頂面８に至る冷却用貫通孔７を有し、し
かも、図２にみられるように、前記冷却用貫通孔７に十
字状に交差してボルト本体３の頭部５に設けられた分岐
貫通孔９，９を有している。That is, at the center axis 6 of the bolt body 3,
It has a cooling through-hole 7 extending from the tip end portion 4 to the top surface 8 and, as shown in FIG. 2, is provided in the head 5 of the bolt body 3 so as to cross the cooling through-hole 7 in a cross shape. It has the branched through holes 9, 9.
【０００８】図１および図２に示すように構成された冷
却ボルトにおいては、たとえば、低温高圧側の部材１
は、温度が３００〜４００℃、圧力が１平方センチメー
トルあたり３〜４ｋｇの空気雰囲気にあり、高温低圧側
の部材２は、温度が８５０℃、圧力が１平方センチメー
トルあたり１．４ｋｇの雰囲気にあるので、その低温側
の空気が前記冷却用貫通孔７を通ってボルト本体３の高
温側を冷却し、ボルト本体３の高温による強度の低下お
よびねじ部のかじりが防止される。In the cooling bolt constructed as shown in FIGS. 1 and 2, for example, a member 1 on the low temperature and high pressure side is used.
Has a temperature of 300 to 400 ° C. and a pressure of 3 to 4 kg per square centimeter in an air atmosphere, and the high temperature / low pressure side member 2 has a temperature of 850 ° C. and a pressure of 1.4 kg per square centimeter. The low-temperature air passes through the cooling through-hole 7 to cool the high-temperature side of the bolt body 3, thereby preventing the strength of the bolt body 3 from decreasing due to the high temperature and preventing the screw portion from galling.
【０００９】また冷却用貫通孔７がボルト本体３の中央
軸心６に設けられているので、半径方向には、その中央
軸心を中心として一様に冷却され、さらに、該冷却用貫
通孔７に十字状に交差してボルト本体３の頭部５に設け
られた分岐貫通孔９，９を有するので、ボルト本体３の
高温度となる頭部５がよりよく冷却される。Further, since the cooling through hole 7 is provided at the center axis 6 of the bolt body 3, the cooling through hole 7 is uniformly cooled in the radial direction about the center axis. Since the cross-section 7 is provided with branch through-holes 9 and 9 provided in the head 5 of the bolt body 3 in a cross shape, the head 5 where the temperature of the bolt body 3 becomes high can be cooled better.
【００１０】[0010]
【発明の効果】以上説明したように、本発明によれば、
低温高圧側の部材と高温低圧側の部材を締結するボルト
であって、ボルト本体の先端部から頭頂面に至る冷却用
貫通孔を有するので、前記冷却用貫通孔を通して低温側
の空気が高温側に流れ、ボルト本体の高温側が冷却され
る。As described above, according to the present invention,
A bolt for fastening a low-temperature high-pressure side member and a high-temperature low-pressure side member, and has a cooling through-hole extending from the tip end of the bolt body to the top surface. And the hot side of the bolt body is cooled.
【００１１】したがって、ボルト本体の高温による強度
の低下およびねじ部のかじりが防止される。Therefore, the strength of the bolt body due to high temperature is prevented from being reduced and the thread portion is prevented from being galled.
【図１】 本発明の一実施例を示した縦断側面図であ
る。FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention.
【図２】 図１のボルト本体の平面図である。FIG. 2 is a plan view of the bolt body of FIG. 1;
１ 低温高圧側の部材 ２ 高温低圧側の部材 ３ ボルト本体 ４ 先端部 ５ 頭部 ６ 中央軸心 ７ 冷却用貫通孔 ８ 頭頂面 ９ 分岐貫通孔 １０ ナット DESCRIPTION OF SYMBOLS 1 Low-temperature high-pressure side member 2 High-temperature low-pressure side member 3 Bolt body 4 Tip part 5 Head 6 Central axis 7 Cooling through hole 8 Top surface 9 Branch through hole 10 Nut
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−26005（ＪＰ，Ａ) 特開 平３−117780（ＪＰ，Ａ) 特開 平４−241745（ＪＰ，Ａ) 特開 平６−94238（ＪＰ，Ａ) 実開 昭62−133930（ＪＰ，Ｕ) 実開 昭50−27265（ＪＰ，Ｕ) 実開 昭58−120834（ＪＰ，Ｕ) 実開 昭56−18577（ＪＰ，Ｕ) 実開 平７−30348（ＪＰ，Ｕ) 実開 平６−60752（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16B 35/00 - 35/06 F02K 1/00 - 1/82 F02C 7/18 B64C 15/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-26005 (JP, A) JP-A-3-117780 (JP, A) JP-A-4-241745 (JP, A) JP-A-6-205 94238 (JP, A) Fully open 1987-133930 (JP, U) Fully open, 50-27265 (JP, U) Fully open, 58-120834 (JP, U) Fully open, 56-18577 (JP, U) Japanese Utility Model Application Hei 7-30348 (JP, U) Japanese Utility Model Application Hei 6-60752 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F16B 35/00-35/06 F02K 1/00 -1/82 F02C 7/18 B64C 15/02
Claims (1)
部材（２）とをナット（１０）と螺合することによって
締結するボルトであって、ボルト本体（３）は、その中
央軸心（６）に設けられボルト本体の先端部（４）から
頭頂面（８）に至る冷却用貫通孔（７）と、 該冷却用貫通孔に十字状に交差してボルト本体の頭部
（５）に設けられた分岐貫通孔（９）と、を有し、低温
高圧側に位置する前記先端部から高温低圧側に位置する
前記頭部へ向けて冷却用貫通孔および分岐貫通孔を通じ
て空気を流すものである、ことを特徴とする冷却ボル
ト。1. A bolt for fastening a member (1) on the low-temperature and high-pressure side and a member (2) on the high-temperature and low-pressure side by screwing it into a nut (10). A cooling through-hole (7) provided at the shaft center (6) and extending from the tip (4) of the bolt body to the top surface (8); a head of the bolt body crossing the cooling through-hole in a cross shape; A branch through hole (9) provided in (5), from the tip located on the low temperature and high pressure side to the head located on the high temperature and low pressure side through the cooling through hole and the branch through hole. A cooling bolt for flowing air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24571694A JP3289756B2 (en) | 1994-10-12 | 1994-10-12 | Cooling bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24571694A JP3289756B2 (en) | 1994-10-12 | 1994-10-12 | Cooling bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08109914A JPH08109914A (en) | 1996-04-30 |
| JP3289756B2 true JP3289756B2 (en) | 2002-06-10 |
Family
ID=17137743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24571694A Expired - Fee Related JP3289756B2 (en) | 1994-10-12 | 1994-10-12 | Cooling bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3289756B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6778287B1 (en) | 1995-03-06 | 2004-08-17 | Matsushita Electric Industrial Co., Ltd. | Electronic mail system |
| US6826266B2 (en) | 1995-03-06 | 2004-11-30 | Matsushita Electric Industrial Co., Ltd. | Electronic-mail apparatus |
| US8582140B2 (en) | 1997-08-01 | 2013-11-12 | Canon Kabushiki Kaisha | Communication system and communication apparatus building the system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006245302A (en) * | 2005-03-03 | 2006-09-14 | Fuji Photo Film Co Ltd | Sheet body holding mechanism and drawing device using the same |
| US20170114819A1 (en) | 2015-10-21 | 2017-04-27 | The Boeing Company | Whisker reinforced high fracture toughness ceramic threaded fasteners |
| CN105201985A (en) * | 2015-10-28 | 2015-12-30 | 苏州道众机械制造有限公司 | Long-arm bolt |
| CN107061464B (en) * | 2017-05-17 | 2022-10-28 | 上海小糸车灯有限公司 | Threaded connection spare and threaded connection structure with heat dissipation function |
| CN107263399B (en) * | 2017-07-06 | 2020-01-14 | 江苏永昊高强度螺栓有限公司 | Tension adjusting bolt |
-
1994
- 1994-10-12 JP JP24571694A patent/JP3289756B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6778287B1 (en) | 1995-03-06 | 2004-08-17 | Matsushita Electric Industrial Co., Ltd. | Electronic mail system |
| US6826266B2 (en) | 1995-03-06 | 2004-11-30 | Matsushita Electric Industrial Co., Ltd. | Electronic-mail apparatus |
| US8582140B2 (en) | 1997-08-01 | 2013-11-12 | Canon Kabushiki Kaisha | Communication system and communication apparatus building the system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08109914A (en) | 1996-04-30 |
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