CN111121533B - Resistance self-adaptation formula elastic band device - Google Patents
Resistance self-adaptation formula elastic band device Download PDFInfo
- Publication number
- CN111121533B CN111121533B CN202010097032.3A CN202010097032A CN111121533B CN 111121533 B CN111121533 B CN 111121533B CN 202010097032 A CN202010097032 A CN 202010097032A CN 111121533 B CN111121533 B CN 111121533B
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- China
- Prior art keywords
- elastic belt
- belt
- elastic
- base
- belt base
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- 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.)
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Classifications
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- 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
- F41A21/16—Barrels or gun tubes characterised by the shape of the bore
- F41A21/18—Grooves-Rifling
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- 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
- F41A35/00—Accessories or details not otherwise provided for
Abstract
The invention belongs to the field of internal trajectory launching, and particularly relates to a resistance self-adaptive type belt loading device. The elastic belt comprises an elastic belt body, an elastic belt base I and an elastic belt base II, wherein the elastic belt body is integrally cylindrical, two ends of the inner side surface of the elastic belt body are respectively provided with an annular groove with a T-shaped cross section, and the middle part of the inner side surface of the elastic belt body is provided with an annular groove with a semicircular cross section; the elastic belt base I and the elastic belt base II are identical in structure and size, annular protrusions are arranged on the peripheries of the elastic belt base I and the elastic belt base II, the annular protrusions are in clearance fit with T-shaped annular grooves of the elastic belt main body, and the outer side surfaces of the elastic belt base I and the elastic belt base II and the outer side surface of the elastic belt main body are located on the same plane; the outer surfaces of the belt grooves on the belt body, the belt base I, the belt base II and the projectile form a semi-cylindrical closed cavity together. The invention realizes the system sealing performance and the full combustion of the charged powder when the projectile body embedded into the barrel is launched in advance by changing the structure of the elastic band device, and directly improves the launching performance of the whole launching system.
Description
Technical Field
The invention belongs to the field of internal trajectory launching, and particularly relates to a resistance self-adaptive type belt loading device.
Background
In the process of internal ballistic launching, for a projectile needing to be embedded into a barrel in advance, the matching relationship between the belt and the barrel is generally clearance fit. This situation can have two negative effects: firstly, the movement resistance of the projectile caused by the belt is low, which can cause the movement acceleration of the projectile in the initial stage to be larger, and further cause the combustion of the explosive in the chamber to be insufficient; secondly, the joint effect between the elastic belt and the barrel is not good, and the air-tight performance of the elastic belt is further influenced. Conventional bandoliers that are inserted into the barrel ahead of time do not address the negative effects of both aspects.
Disclosure of Invention
The invention aims to provide a resistance self-adaptive type belt magazine.
The technical solution for realizing the purpose of the invention is as follows: a resistance self-adaptive elastic belt device comprises an elastic belt main body, an elastic belt base I and an elastic belt base II,
the elastic belt main body is integrally cylindrical, two ends of the inner side surface of the elastic belt main body are respectively provided with an annular groove with a T-shaped cross section, and the middle part of the inner side surface of the elastic belt main body is provided with an annular groove with a semicircular cross section;
the elastic belt base I and the elastic belt base II are identical in structure and size, annular protrusions are arranged on the peripheries of the elastic belt base I and the elastic belt base II, the annular protrusions are in clearance fit with T-shaped annular grooves of the elastic belt body, and the outer side surfaces of the elastic belt base I and the elastic belt base II and the outer side surface of the elastic belt body are located on the same plane;
the outer surfaces of the belt grooves on the belt body, the belt base I, the belt base II and the projectile form a semi-cylindrical closed cavity together.
Furthermore, the elastic belt main body (1) and the elastic belt base I (2) and the elastic belt base II (3) can slide relatively in the radial direction.
Compared with the prior art, the invention has the remarkable advantages that:
according to the invention, the explosive gas in the chamber is introduced into the cavity formed by the semicircular ring at the bottom of the belt body from the bottom of the bullet, so that the belt is driven to expand along the radial direction, the attaching state with the inner wall of the barrel is further changed, and the contact stress between the belt and the barrel is increased; the pressed fit between the elastic belt and the barrel is beneficial to improving the air-tight performance of the elastic belt; in addition, the increased partial contact stress is in positive correlation with the gunpowder gas pressure in the cavity (namely, the gunpowder gas pressure in the projectile bottom area), the pressure amplitude in the bore is increased at the initial stage of the movement stroke of the projectile, the correspondingly increased movement resistance amplitude of the projectile is also larger, the increased movement resistance limits the increasing speed of the projectile rear space, the internal combustion of the projectile is further promoted, the projectile bottom gas pressure amplitude is relatively lower, the resistance increase caused by the introduced gunpowder gas is reduced, and the smaller resistance is favorable for the accelerated movement of the projectile; in a word, the invention realizes the system sealing performance and the full combustion of the charge when the projectile body embedded into the barrel is launched in advance by changing the structure of the elastic band device, and directly improves the launching performance of the whole launching system.
Drawings
FIG. 1 is a schematic diagram of a resistance adaptive type belt loading device according to the present invention.
Fig. 2 is a schematic structural view of the main body of the belt of the present invention.
Fig. 3 is a schematic view of the appearance of the elastic belt bottom support of the invention.
Fig. 4 is a three-dimensional schematic diagram of the elastic belt bottom support of the invention.
Fig. 5 is a sectional view showing an assembled relationship of the resistance adaptive type band apparatus of the present invention.
Description of reference numerals:
the elastic belt comprises a main body 1, an elastic belt base I2 and an elastic belt base II 3.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
The invention provides an elastic belt device capable of adaptively adjusting the movement resistance of a launcher, which comprises an elastic belt main body comprising two rectangular grooves and a semicircular groove, and two elastic belt bottom supports comprising rectangular bosses.
As shown in fig. 1-5, the resistance self-adaptive elastic belt device comprises an elastic belt body 1, an elastic belt base i 2 and an elastic belt base ii 3.
The elastic belt body 1 can slide relative to the elastic belt base I2 and the elastic belt base II 3 in a limited radial direction.
The internal face department of 1 two terminal surfaces in the bullet area main part respectively has a T type annular groove, and 1 internal face in the bullet area main part has a semicircle annular groove that is used for holding the gunpowder gas, and bullet area collet I2 and bullet area collet II 3 have the centre have with 1 bottom rectangle recess matched with boss in the bullet area main part.
The structure and the size of the elastic belt base I2 and the elastic belt base II 3 are completely consistent.
The outer surfaces of the belt grooves on the belt body 1, the belt base I2, the belt base II 3 and the projectile form a semi-cylindrical closed cavity together.
The bullet takes collet I2 and the rectangle boss and the shoulder appearance of bullet area collet II 3 and the inner wall phase-match in the T type groove on 1 two terminal surface department inner walls in the main part of the bullet area, and the internal diameter of bullet area main part 1, bullet area collet I2 and bullet area collet II 3 is unanimous.
At the initial stage of movement, gunpowder gas is introduced into a semicircular annular groove at the inner wall of the belt magazine body 1 after the bullet, the belt magazine body 1 expands radially under the pushing of the pressure of the gunpowder gas, and the direct contact stress between the outer surface of the belt magazine body 1 and the inner wall of the barrel is increased. Meanwhile, the positions of the elastic belt cork I2 and the elastic belt cork II 3 relative elastic bodies are unchanged, and the elastic belt main body 1 and the elastic belt cork I2 are matched with each other through a rectangular groove between the elastic belt cork II 3 to slide relatively. Because the radial expansion amplitude of the elastic band main body 1 is limited by the inner wall of the barrel, the contact cooperation between the elastic band main body 1 and the elastic band bottom supports I2 and II 3 can still seal gunpowder gas led into the cavity. The increase of the contact stress between the belt body 1 and the inner wall of the barrel is determined by the pressure of introduced gunpowder gas, and finally the self-adaptive adjustment effects of increasing the initial movement resistance of the projectile and reducing the later movement resistance are achieved.
Claims (2)
1. A resistance self-adaptive elastic belt device is characterized by comprising an elastic belt main body (1), an elastic belt bottom support I (2) and an elastic belt bottom support II (3),
the elastic belt main body (1) is integrally cylindrical, two ends of the inner side surface of the elastic belt main body (1) are respectively provided with an annular groove with a T-shaped cross section, and the middle part of the inner side surface of the elastic belt main body is provided with an annular groove with a semicircular cross section;
the structure and the size of the elastic belt bottom support I (2) and the elastic belt bottom support II (3) are the same, annular protrusions are arranged on the peripheries of the elastic belt bottom support I (2) and the elastic belt bottom support II (3), the annular protrusions are in clearance fit with T-shaped annular grooves of the elastic belt main body (1), and the outer side surfaces of the elastic belt bottom support I (2) and the elastic belt bottom support II (3) are respectively located on the same plane with the outer side surfaces of two ends of the elastic belt main body (1);
the cartridge belt body (1), the cartridge belt base I (2), the cartridge belt base II (3) and the outer surface of the cartridge belt groove on the projectile form a semi-cylindrical closed cavity together.
2. The device according to claim 1, characterized in that the belt body (1) is radially slidable relative to the belt shoe (i (2) and the belt shoe (ii) (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097032.3A CN111121533B (en) | 2020-02-17 | 2020-02-17 | Resistance self-adaptation formula elastic band device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097032.3A CN111121533B (en) | 2020-02-17 | 2020-02-17 | Resistance self-adaptation formula elastic band device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111121533A CN111121533A (en) | 2020-05-08 |
| CN111121533B true CN111121533B (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010097032.3A Active CN111121533B (en) | 2020-02-17 | 2020-02-17 | Resistance self-adaptation formula elastic band device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111121533B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087917A (en) * | 2021-12-29 | 2022-02-25 | 内蒙金属材料研究所 | Target holder for cylindrical fragment simulation bomb and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0183892A1 (en) * | 1984-12-04 | 1986-06-11 | The State Of Israel Ministry Of Defence Israel Military Industries | Seal for kinetic munition |
| USH794H (en) * | 1989-09-08 | 1990-07-03 | The United States Of America As Represented By The Secretary Of The Navy | Discarding rotating band for projectile |
| DE19729294A1 (en) * | 1997-07-09 | 1999-01-14 | Rheinmetall W & M Gmbh | Gun barrel |
| CN103480953A (en) * | 2013-09-16 | 2014-01-01 | 哈尔滨工业大学 | Soft iron and copper composite belt structure and welding method thereof |
| CN110671969A (en) * | 2019-09-04 | 2020-01-10 | 南京理工大学 | Hulling clamping flap capable of reducing fluid resistance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013101363B4 (en) * | 2013-07-31 | 2014-03-13 | Techventure Investments Pty Ltd | A projectile body and corresponding ammunition round for small arms or a light firearm |
-
2020
- 2020-02-17 CN CN202010097032.3A patent/CN111121533B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0183892A1 (en) * | 1984-12-04 | 1986-06-11 | The State Of Israel Ministry Of Defence Israel Military Industries | Seal for kinetic munition |
| USH794H (en) * | 1989-09-08 | 1990-07-03 | The United States Of America As Represented By The Secretary Of The Navy | Discarding rotating band for projectile |
| DE19729294A1 (en) * | 1997-07-09 | 1999-01-14 | Rheinmetall W & M Gmbh | Gun barrel |
| CN103480953A (en) * | 2013-09-16 | 2014-01-01 | 哈尔滨工业大学 | Soft iron and copper composite belt structure and welding method thereof |
| CN110671969A (en) * | 2019-09-04 | 2020-01-10 | 南京理工大学 | Hulling clamping flap capable of reducing fluid resistance |
Non-Patent Citations (1)
| Title |
|---|
| 某型火炮不同模块装药弹带挤进过程的数值模拟;孙鹏 等;《兵器装备工程学报》;20190131;第40卷(第1期);第88-93页 * |
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| Publication number | Publication date |
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| CN111121533A (en) | 2020-05-08 |
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