JPS6256996U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図はそれぞれこの考案の実施
例による砲身上への被着締結状態を示した熱被筒
の構成断面図および底面図、第３図は第１図にお
ける締付機構の構成部品を示す分解斜視図、第４
図ないし第６図はそれぞれ第３図の仮組立状態を
示す側視断面図、第４図の矢視―断面図、お
よび部分底面図、第７図は皿ばねの締付ストロー
クと締付力との関係を表す図、第８図は熱被筒の
被着状態を示す砲身の側面図、第９図ないし第１
１図はそれぞれ従来構造による熱被筒の砲身への
被着締結状態を示す側断面図、第９図の矢視Ｘ―
Ｘ断面図、および底面図である。図において、 ２：砲身、４：ヒートパイプ式熱被筒、１１：
締付フランジ、１２：第１のテンシヨンロツド、
１３：第２のテンシヨンロツド、１４：締結ボル
ト、１５：ねじ穴、１６：切欠溝部、１６ａ：ボ
ルト嵌合溝部、１６ｂ：脚係合溝部、１７：皿ば
ね、１８：ワツシヤ、１９：皿ばねハウジング、
２０：ストツパピン、Ｐ：熱被筒の切欠部、Ｌ：
皿ばねハウジングの筒部の軸長寸法。 Figures 1 and 2 are a cross-sectional view and a bottom view of a heat jacket according to an embodiment of this invention showing how it is attached and fastened to a gun barrel, respectively, and Figure 3 is a configuration of the tightening mechanism in Figure 1. Exploded perspective view showing parts, No. 4
Figures 6 to 6 are a side sectional view showing the temporarily assembled state in Figure 3, a sectional view taken in the direction of arrows in Figure 4, and a partial bottom view, and Figure 7 is the tightening stroke and tightening force of the disc spring. Figure 8 is a side view of the gun barrel showing the state of adhesion of the heat jacket, Figures 9 to 1
Figure 1 is a side sectional view showing how the heat jacket is attached and fastened to the gun barrel according to the conventional structure, and the direction shown by the arrow X in Figure 9 is
They are an X sectional view and a bottom view. In the figure, 2: gun barrel, 4: heat pipe type heat jacket, 11:
Tightening flange, 12: first tension rod,
13: Second tension rod, 14: Fastening bolt, 15: Screw hole, 16: Notch groove, 16a: Bolt fitting groove, 16b: Leg engaging groove, 17: Belleville spring, 18: Washer, 19: Belleville spring housing ,
20: Stopper pin, P: Notch of heat jacket, L:
Axial length of the cylindrical part of the disc spring housing.

Claims (1)

【実用新案登録請求の範囲】 (1) 砲身の外周に被着して砲身の均熱、放熱を
行う熱被筒の締付装置であつて、その周上の一箇
所を軸方向に切欠いた断面Ｃ字形の熱被筒に対し
、該熱被筒の前記切欠部に沿つて熱被筒の両端部
にそれぞれフランジ部材を介して遊嵌支持された
パイプ体としてなる第１および第２のテンシヨン
ロツドと、該テンシヨンロツドの軸上に分散して
設定された複数箇所の各締結部の間で第１のロツ
ドに穿孔されたねじ穴と該ねじ穴に対向して第２
のロツドに切欠き形成された切欠溝部とにまたが
つて両ロツド間をボルト締めする締結ボルトと、
前記第２のテンシヨンロツドと締結ボルトの頭部
との間でボルト軸上に嵌挿された皿ばねと、およ
び該皿ばねの締付ストロークの位置決め部材を兼
ね、かつその脚部先端が前記第２のテンシヨンロ
ツドの切欠溝部に嵌り込んでそのパイプ内壁面へ
係合し合うように構成された脚付きの皿ばねハウ
ジングとを具備してなり、砲身上へ熱被筒を被着
した状態で前記テンシヨンロツド間にまたがつて
締結ボルトをねじ込み操作し、かつ第２テンシヨ
ンロツドに係合した皿ばねハウジングを基準に皿
ばねに所定の締付ストロークを与えて圧縮するこ
とにより、熱被筒における各締結部でそれぞれ所
定の締付力を得るように構成したことを特徴とす
る熱被筒の締付装置。 (2) 実用新案登録請求の範囲第１項記載の締付
装置において、皿ばねハウジングがばね受け座面
となる底部および該底部から背後に向けて突出す
る脚部を有する脚付きの有底筒状体としてなり、
かつその筒部の軸長寸法が締結部に所定の締付力
を与える皿ばねの締付ストロークに対応する長さ
に設定されていることを特徴とする熱被筒の締付
装置。 (3) 実用新案登録請求の範囲第１項記載の締付
装置において、第２のテンシヨンロツドに切欠き
形成された切欠溝部が締結ボルトの嵌り込むボル
ト嵌合溝部と、皿ばねハウジングの脚部と係合し
合う脚係合溝部とを組合せた複数の切欠溝である
ことを特徴とする熱被筒の締付装置。 (4) 実用新案登録請求の範囲第１項記載の締付
装置において、締結ボルトがそのボルト軸先端部
に第１のテンシヨンロツドからの脱落を阻止する
ストツパ部材を備えていることを特徴とする熱被
筒の締付装置。[Scope of Claim for Utility Model Registration] (1) A tightening device for a heat jacket that is attached to the outer periphery of a gun barrel to equalize and radiate heat from the gun barrel, which has a notch in the axial direction at one point on the periphery. First and second tension rods, each of which is a pipe body, are loosely fitted and supported at both ends of the heat jacket along the notch of the heat jacket through a flange member, with respect to the heat jacket having a C-shaped cross section. and a screw hole drilled in the first rod and a second screw hole opposite to the screw hole between the plurality of fastening parts set dispersedly on the axis of the tension rod.
a fastening bolt that straddles a notch groove formed in the rod and tightens the bolt between both rods;
A disc spring is fitted onto the bolt shaft between the second tension rod and the head of the fastening bolt, and also serves as a positioning member for the tightening stroke of the disc spring, and the tip of the leg is connected to the second tension rod. and a disc spring housing with legs configured to fit into the cutout groove of the tension rod and engage with the inner wall surface of the pipe, and the tension rod can be mounted on the gun barrel with a heat jacket attached to the gun barrel. By screwing in the fastening bolts across the joints and applying a predetermined tightening stroke to the disc springs based on the disc spring housing engaged with the second tension rod, the disc springs are compressed at each joint in the heat jacket. A heat jacket tightening device characterized in that each device is configured to obtain a predetermined tightening force. (2) In the tightening device according to claim 1 of the utility model registration claim, the belleville spring housing is a bottomed cylinder with legs that has a bottom portion that serves as a spring receiving seat and legs that protrude rearward from the bottom portion. As a body,
A heat jacket tightening device characterized in that the axial length of the cylindrical portion is set to a length corresponding to the tightening stroke of a disc spring that applies a predetermined tightening force to the fastening portion. (3) In the tightening device according to claim 1 of the utility model registration claim, the cutout groove formed in the second tension rod is connected to the bolt fitting groove into which the fastening bolt is fitted and the leg of the disc spring housing. A heat jacket tightening device characterized by having a plurality of notched grooves in combination with leg engaging grooves that engage with each other. (4) The tightening device according to claim 1 of the utility model registration claim, characterized in that the fastening bolt is provided with a stopper member at the tip of the bolt shaft to prevent it from falling off from the first tension rod. Clamping device for the jacket.