JPS5944597A - Gun barrel with heat pipe - Google Patents
Gun barrel with heat pipeInfo
- Publication number
- JPS5944597A JPS5944597A JP15535382A JP15535382A JPS5944597A JP S5944597 A JPS5944597 A JP S5944597A JP 15535382 A JP15535382 A JP 15535382A JP 15535382 A JP15535382 A JP 15535382A JP S5944597 A JPS5944597 A JP S5944597A
- Authority
- JP
- Japan
- Prior art keywords
- gun barrel
- barrel
- temperature
- gun
- heat pipe
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A13/00—Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
- F41A13/12—Systems for cooling the outer surface of the barrel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/44—Insulation jackets; Protective jackets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明はヒルドパイブを備える砲身に関する。[Detailed description of the invention] The present invention relates to a gun barrel equipped with a hilted pipe.
戦車等に取り付けられる砲身は1弾体の命中精度を高め
るため長い筒状に構成されているが、この形状が起因し
て砲身は熱の影響を受けやすい−という問題を生じてい
る。Gun barrels attached to tanks and the like are constructed in a long cylindrical shape to improve the accuracy of a single bullet, but this shape poses a problem in that the gun barrel is easily affected by heat.
第1図は戦車の概略図、第2図は砲身の拡大図を示すも
のであり、lは戦車本体、2は砲身である。このような
構造において通常砲身は太陽光を受ける上側が大巾に温
度上昇し太陽光を受けない下側はわずかじか温度上昇し
ないため、第3図に示すようにその熱膨張差により長い
砲身2が曲り(図においてδで示す)射撃精度が悪くな
る欠点がある。Fig. 1 is a schematic diagram of the tank, and Fig. 2 is an enlarged view of the gun barrel, where l is the tank body and 2 is the gun barrel. In such a structure, the temperature of the upper side of the gun barrel that receives sunlight increases greatly, while the temperature of the lower side that does not receive sunlight rises only slightly.As shown in Figure 3, the difference in thermal expansion causes a long gun barrel. 2 is bent (indicated by δ in the figure), which has the disadvantage that shooting accuracy deteriorates.
また、砲身は射撃能率(射撃サイクルとパターン)と発
射速度(単位時間当りの発射弾数)とがこの砲身命数の
決定的要因となるが、砲身の腔内は発射の都度、推進薬
の燃焼によりフレーム温度が2500〜30000Kま
で上昇し、圧力2500〜5000気圧、速度800=
1600m/ sのガスの衝撃を受けるとともに弾体と
砲身腔内の弾帯との機械的摩擦による発熱も加わるため
、砲身が高温度?こ達しその材質寿命に影響を来たした
り、熱膨張による砲身口径の拡がりにより、弾体と腔内
に隙間が生じ燃焼ガスが洩れるという事態が生じる。ま
たこれに伴って、ガスによる腔内面の摩耗を誘発する。In addition, the firing efficiency (firing cycle and pattern) and rate of fire (number of bullets fired per unit time) are the determining factors for the lifespan of a gun barrel, but the inside of the gun barrel burns propellant each time it is fired. The flame temperature rises to 2500-30000K, pressure 2500-5000 atm, speed 800=
The gun barrel becomes hot due to the impact of the gas at 1600 m/s and the heat generated by the mechanical friction between the bullet and the bandolier inside the barrel cavity. This may affect the lifespan of the material, or the enlargement of the barrel diameter due to thermal expansion may create a gap between the bullet and the cavity, causing combustion gas to leak. In addition, this also induces abrasion of the inner surface of the cavity due to the gas.
一般に砲身に渡される熱量は砲内ガスの速度。Generally, the amount of heat transferred to the gun barrel is determined by the velocity of the gas inside the gun.
密度およびそのフレーム温度さの関数であり、推進薬燃
焼エネルギーの5〜8チ程灰が砲身lこ伝達される。し
かしながら、射撃毎の熱伝達時間がきわめて短いために
、この時間内に加熱されるのは砲身腔内面のごく表層に
限られる。このため、最大の温度勾配が10,00いン
ーにも達し肉厚方向への熱伝導がきわめて遅いことから
、腔内表面の最高温度は1100℃にも達する。この腔
内表面温度は次弾が発射される前には急速に下り例えば
10秒後には450℃以下になるが腔内面の機械的摩耗
とヒート・ショックの拡大に決定的な要因となるのは、
この次弾発射直前の腔内面温度で、これをこの砲身の基
底温度(13ase Temperature )とい
い連続射撃を行なう場合、砲種毎に弾種と射撃能率とに
よって第4図の破線Aで示すような個有の曲線を描く。As a function of density and its flame temperature, 5 to 8 inches of propellant combustion energy is transferred to the ash barrel. However, since the heat transfer time for each shot is extremely short, only a very superficial layer of the inner surface of the barrel cavity is heated within this time. For this reason, the maximum temperature gradient reaches 10,000 degrees Celsius, and since heat conduction in the thickness direction is extremely slow, the maximum temperature on the inner surface of the cavity reaches 1100 degrees Celsius. The internal surface temperature of this cavity rapidly decreases to below 450°C after 10 seconds, for example, before the next bullet is fired, but this is the decisive factor for mechanical wear on the internal cavity surface and expansion of heat shock. ,
This temperature on the inner surface of the barrel just before the next bullet is fired is called the base temperature of the gun barrel (13ase temperature), and when continuous firing is performed, the temperature is determined by the bullet type and firing efficiency for each gun type, as shown by the broken line A in Figure 4. Draw a unique curve.
この曲線は発射間隅をΔtとして連射の弾数nとの関数
で表され、△tが小さくnが大きいほどこの曲線の勾配
が急になり、砲身の摩耗と衰損とに大きく影響する。今
、温度変化の早さを無視して考えると鋼(砲身材)の塑
性限界温度450〜550’C以上に達するのは、腔内
から厚み0.15−()、2wax才であるが、連続射
方では基底温度が上昇[7、砲身全体が過熱状1731
なるため連続射撃ができなくなる。This curve is expressed as a function of n, the number of bullets fired in rapid succession, with Δt as the corner between shots, and the smaller Δt is and the larger n is, the steeper the slope of this curve becomes, which has a greater effect on the wear and deterioration of the gun barrel. Now, ignoring the speed of temperature change, the plastic limit temperature of steel (gun barrel material) of 450 to 550'C is reached at a thickness of 0.15-() and 2wax years from the inside of the cavity. In continuous firing, the base temperature increases [7, the entire gun barrel is overheated 1731
As a result, continuous shooting becomes impossible.
このように太陽光及び射撃時に生じる熱は特に砲身の根
元、及び上側に集中するため砲身全体を均熱化すること
により、放熱作用を促すことが望才しい。In this way, sunlight and heat generated during firing are concentrated particularly at the base and upper part of the gun barrel, so it is desirable to promote heat dissipation by equalizing the temperature of the entire gun barrel.
本発明はこのような点に鑑みなされたもので。The present invention was made in view of these points.
太卜し光による熱の影響を解消し砲身の均熱化を図ると
吉もに、射1による熱を分散冷却するヒートパイプブを
備える砲身を提供することを目的さする。The purpose of this invention is to provide a gun barrel equipped with a heat pipe that disperses and cools the heat generated by the rays 1, in order to eliminate the influence of heat caused by light and to uniformly heat the gun barrel.
この目的(才本発明によれば、砲身を被筒でUい砲庁と
被筒との境に環状とそれに連なる軸方向の溝を・複数設
けるとともにウィックを介在させることにより連成され
る。According to the present invention, this objective is achieved by providing a plurality of annular and continuous axial grooves on the boundary between the U-shaped gun center and the barrel in the gun barrel, and interposing a wick.
以下に本発明の実施例を図面に基づいて説明する。第5
図、第6図は砲身3自体に直接環状の溝4、及びそれに
連なる軸方向の溝5を複数設けるとともに、その外周を
ウィック6にて包囲し、さらにその外周に例えばステン
レス6’i、iからなる被筒7を被せ両端を溶接又はろ
う付8により気密接合を行なうものであり、被TJ 7
の一部には銅・(イブ9が溶接された孔が被筒7毎に設
りられており、これから減圧し少量の作動液を封入する
。作動液きしては一408C〜+100℃程度の温度範
囲内で作動する枢例えばフロνIt −11、R−11
4などの冷媒を使用する。作動液封人後前記φ同](イ
ノ°9を密封することにより、作動液の作動空間すなわ
ちヒートパイプを有する砲身を構成する。Embodiments of the present invention will be described below based on the drawings. Fifth
6, a plurality of annular grooves 4 and continuous axial grooves 5 are provided directly on the gun barrel 3 itself, and the outer periphery thereof is surrounded by a wick 6, and furthermore, the outer periphery is covered with stainless steel 6'i, i, etc. The TJ 7 is covered with a sheathing tube 7 and both ends are welded or brazed 8 to achieve an airtight joint.
A hole to which a copper tube 9 is welded is provided in each jacket 7, and the pressure is reduced from this hole and a small amount of hydraulic fluid is sealed. For example, flow νIt -11, R-11
Use a refrigerant such as 4. After sealing the hydraulic fluid, by sealing the above-mentioned φ 9, a gun barrel having a working space for the hydraulic fluid, that is, a heat pipe is constructed.
第7図、第8図は本発明の他の実施例を示すものであり
、例えばステンレス(ν1からなる被筒10側に環状の
溝11及びそれに連なる軸方向の溝12を複数設りると
きもにこの内周にウィック13を装設した後、砲身14
に挿入し被筒lOの両端を溶接又はろう伺8により気@
接合を行なうものであり、前記実施例同様被筒lOの一
部には銅〕くイブ9が溶接された孔が被筒1041J、
に設けられており、これから減圧するとともに少量の作
動液を封′入する。7 and 8 show other embodiments of the present invention, for example, when a plurality of annular grooves 11 and a plurality of axial grooves 12 connected thereto are provided on the side of the sleeve 10 made of stainless steel (ν1). After installing the wick 13 on the inner circumference of the shell, the gun barrel 14
Insert the sleeve lO into the housing and attach it by welding or soldering 8.
As in the previous embodiment, a hole to which a copper tube 9 is welded is formed in a part of the sheath 1041J,
The pressure is reduced from this and a small amount of hydraulic fluid is sealed in the tank.
なお上記実施例において、被筒7オたけlOは単体で構
成することも可能であるが、製造上複数てホ゛4成し、
隣接する被筒を溶接あるいはろう付15合で構成される
ものであり、前記実施例では砲身と被筒との間に介在す
る構造を説明したが1本発明はこれに限定されるもので
はなく、例えばウィックを砲身萩たは被筒に設けられた
溝に挿入したものであってもよい。史に菫た、溝は砲身
と被筒のいずれか一方に設ける必要はなく1例えば砲身
に環状の溝を、被筒に軸方向の溝をそれぞれ複数設けた
ものであってもよい。In the above embodiment, although it is possible to construct the jacket 7 and 10 by a single unit, due to manufacturing reasons, it is possible to construct the jacket 7 by a single unit.
Adjacent casings are welded or brazed to each other, and although the structure interposed between the gun barrel and the casing was described in the above embodiment, the present invention is not limited to this. For example, the wick may be inserted into a groove provided in the gun barrel or sleeve. Historically, it is not necessary to provide grooves on either the gun barrel or the casing; for example, a plurality of annular grooves may be provided on the gun barrel, and a plurality of axial grooves may be provided on the casing.
以上の説明から明らかな様に本発明によれは。As is clear from the above description, according to the present invention.
太陽3’e ?!Z受けた場合、太陽光を受りでいる側
がヒートパイプとして加熱側となり、作動液が沸騰し蒸
気として溝内を高速で移動する。これにより、太陽光を
受けていない側が昇温し砲身全体かは1ま同温度となり
砲身の曲りを防止し、また射撃時の極部加熱を軸方向の
直線状ヒートパイプにより熱を分散し放熱作用を促す効
果も得られ、もって砲の稲”度、寿命を向上する効果が
得られる。Sun 3'e? ! When receiving Z, the side receiving sunlight becomes the heating side as a heat pipe, and the working fluid boils and moves at high speed in the groove as steam. As a result, the temperature rises on the side that is not exposed to sunlight, and the entire gun barrel remains at the same temperature, preventing the gun barrel from bending.In addition, the heat is dispersed and dissipated by the linear heat pipe in the axial direction, which prevents the barrel from bending. It also has the effect of accelerating the action, thereby improving the durability and lifespan of the gun.
第1図は戦車の概略図、第2図は砲身の横断面図、第3
図は砲身が太陽光を受けている状態を模擬した側面図及
びその軸線、第4図は連続射撃による砲身の腔内面温度
を時間とともに示したグラノ jlT 5 lζ1(、
L砲封自体に溝をWF゛けた場合の本発明の一実71ζ
BUを示すえIY断面図、第6図a 、+ bは第5図
の部分イア/、犬11(断面図、及び横断面図、第7M
は被f、ff側に’(1”を苓・設けた場合の本発明の
一夾7[−例を示勺1従1゛11面図、筆8図a、1)
は第7図の部分拡大縦面図及び精(断面図を示す。
3.14 ・砲身、4.11・・工1状の溝、5,12
・ i部方向の)(”・J6.13・・・ウィック、7
.10・晟f:j)
矛 l 侶
72図
123 図
−74口
○
に
耐
Tぷ口
才6 図
17 口
才8図Figure 1 is a schematic diagram of the tank, Figure 2 is a cross-sectional view of the gun barrel, and Figure 3 is a schematic diagram of the tank.
The figure shows a side view simulating the state in which the gun barrel is exposed to sunlight and its axis, and Figure 4 shows the inner surface temperature of the gun barrel over time due to continuous firing.
A part of the present invention 71ζ when a groove is cut into the L gun seal itself
Figure 6a, + b is a partial IY cross-sectional view of Figure 5 showing BU, dog 11 (cross-sectional view and cross-sectional view, Figure 7M).
This is one example of the present invention when '(1') is provided on the f and ff sides.
Figure 7 shows a partially enlarged longitudinal view and a detailed cross-sectional view. 3.14 Gun barrel, 4.11... Groove 1, 5, 12
・In direction of i part)(”・J6.13...Wick, 7
.. 10・晟f:j) pierce 72 Figure 123 Figure-74 Mouth ○ resistant Tpu mouth 6 Figure 17 Mouth 8 Figure
Claims (1)
連なる軸方向の溝を複数設けるとともにウィックを介在
させたことを特徴とすると一ドパイブを備える砲身。A gun barrel equipped with a single dove, characterized in that the gun barrel is covered with a casing, and a plurality of annular and continuous axial grooves are provided at the boundary between the gun barrel and the casing, and a wick is interposed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15535382A JPS5944597A (en) | 1982-09-07 | 1982-09-07 | Gun barrel with heat pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15535382A JPS5944597A (en) | 1982-09-07 | 1982-09-07 | Gun barrel with heat pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5944597A true JPS5944597A (en) | 1984-03-13 |
Family
ID=15604040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15535382A Pending JPS5944597A (en) | 1982-09-07 | 1982-09-07 | Gun barrel with heat pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5944597A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60196600A (en) * | 1984-03-21 | 1985-10-05 | 株式会社富士電機総合研究所 | Soaking device for gun barrel |
JPS6113195U (en) * | 1984-06-29 | 1986-01-25 | 株式会社 富士電機総合研究所 | Gun barrel heat equalization device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0033770A2 (en) * | 1980-02-12 | 1981-08-19 | Rheinmetall GmbH | Protection cover for a gun barrel |
-
1982
- 1982-09-07 JP JP15535382A patent/JPS5944597A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0033770A2 (en) * | 1980-02-12 | 1981-08-19 | Rheinmetall GmbH | Protection cover for a gun barrel |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60196600A (en) * | 1984-03-21 | 1985-10-05 | 株式会社富士電機総合研究所 | Soaking device for gun barrel |
JPS6113195U (en) * | 1984-06-29 | 1986-01-25 | 株式会社 富士電機総合研究所 | Gun barrel heat equalization device |
JPH0435759Y2 (en) * | 1984-06-29 | 1992-08-24 |
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