An ignition cable assembly for tail-ignition missiles

Abstract

The present invention discloses an ignition cable assembly for a tail-fire missile, comprising an ignition cable, a first steel wire rope, and a second steel wire rope. One end of the ignition cable is connected to a launcher, and the other end is connected to an engine cover of the tail-fire missile. One end of the first steel wire rope is mounted on the launcher, and the other end is mounted on the end of the ignition cable facing away from the launcher. One end of the second steel wire rope is mounted on the launcher, and the other end is mounted on the end of the ignition cable facing away from the launcher. The length of the first steel wire rope is shorter than that of the second steel wire rope, and the diameter of the first steel wire rope is larger than that of the second steel wire rope. The length of the second steel wire rope is shorter than that of the ignition cable. The ignition cable assembly can prevent the ignition cable from being torn, thereby preventing the huge kinetic energy of the ignition cable and the engine cover from posing a threat to missiles and the like.

Description

Technical Field

[0001] The invention relates to the technical field of ignition cables, and in particular to an ignition cable assembly for a tail ignition missile. Background Art

[0002] The ignition cable is a component that realizes the electrical connection between the missile and the launcher. The ignition cable can transmit the ignition signal and ignition current from the launcher to the missile, thereby realizing the ignition of the missile.

[0003] Some missiles use an engine-tail ignition method, where a plug is installed at the tail end of the engine. The connector on one end of the ignition cable is connected to the engine plug, and the connector on the other end is connected to the launcher. With this engine-tail ignition method, because the engine plug and the ignition cable connector have considerable mass, after the missile engine ignites, the impact of the engine flame will cause the engine plug and the ignition cable connector to have a huge backward kinetic energy. This kinetic energy is often enough to sever the ignition cable, causing the plug and connector to fly freely. This could potentially collide with the aircraft, the launcher, or nearby missiles, posing a significant safety hazard. Summary of the Invention

[0004] In view of this, the present invention provides an ignition cable assembly for a tail-fired missile, which can prevent the ignition cable of the tail-fired missile from being torn off during launch, thereby preventing the ignition cable and the engine cover from being in a free-flying state.

[0005] The technical solution adopted in the present invention is as follows:

[0006] An ignition cable assembly for a tail-ignition missile comprises an ignition cable, a first steel wire rope and a second steel wire rope;

[0007] One end of the ignition cable is connected to the launcher frame, and the other end is connected to the engine cover of the tail ignition missile;

[0008] One end of the first steel wire rope is mounted on the hair guide frame, and the other end is mounted on the end of the ignition cable away from the hair guide frame;

[0009] One end of the second steel wire rope is mounted on the hair guide frame, and the other end is mounted on the end of the ignition cable away from the hair guide frame;

[0010] The length of the first steel wire rope is smaller than the length of the second steel wire rope, and the diameter of the first steel wire rope is larger than the diameter of the second steel wire rope;

[0011] The length of the second steel wire rope is shorter than the length of the ignition cable.

[0012] Furthermore, both ends of the first steel wire rope and both ends of the second thin wire rope are fixed with crimping sleeves;

[0013] The crimping sleeves are all provided with perforations;

[0014] The first steel wire rope passes through the through hole of the crimping sleeve fixed thereto, and forms a loop at each end;

[0015] The second steel wire rope passes through the through hole of the crimping sleeve fixed thereto and forms a loop at each end;

[0016] The ends of the first steel wire rope and the second steel wire rope are both installed on the hair guide frame and the ignition cable through rings.

[0017] Furthermore, a fixing structure is provided at the tail end of the hair guide frame;

[0018] The first steel wire rope and the second steel wire rope are sleeved on the fixed structure through rings.

[0019] Furthermore, the fixing structure includes two symmetrically arranged brackets and a crossbar detachably mounted on the two brackets;

[0020] A collar is sleeved on the crossbar.

[0021] Furthermore, connectors are provided at both ends of the ignition cable;

[0022] One end of the ignition cable is detachably connected to the hair guide frame through the connector, and the other end is detachably connected to the engine cover through the connector.

[0023] Furthermore, a through hole is provided on the connector connected to the engine cover;

[0024] The rings at the other ends of the first steel wire rope and the second steel wire rope are sleeved in the through hole.

[0025] Furthermore, two symmetrical through holes are provided on the connector;

[0026] A ferrule for the first steel wire rope is sleeved in one of the through holes, and a ferrule for the second steel wire rope is sleeved in the other through hole.

[0027] Furthermore, the bracket is connected to the cross bar via fasteners.

[0028] Furthermore, the crimping sleeve is made of aluminum alloy.

[0029] Beneficial effects:

[0030] 1. The present invention adds two steel wire ropes of different lengths, both shorter than the ignition cable, to the traditional ignition cable. One end of each steel wire rope is mounted on the launcher frame, and the other end is mounted on the end of the ignition cable facing away from the launcher frame. This allows the steel wire ropes to be straightened before the ignition cable after the tail-ignition missile is launched. The steel wire ropes absorb most of the flight kinetic energy of the ignition cable and the engine cover, thus preventing the ignition cable from being torn and the missile from colliding due to the torn ignition cable.

[0031] 2. The two steel wire ropes in the ignition cable assembly of the present invention are of different lengths. The shorter first steel wire rope is first straightened and tightened until it breaks, and then the longer second steel wire rope is straightened to completely pull the ignition cable. The two steel wire ropes act in sequence, ensuring the reliability of the ignition cable assembly.

[0032] 3. The two steel wires in the ignition cable assembly of the present invention have different thicknesses. The shorter first steel wire is thicker than the longer second steel wire. This allows most of the kinetic energy of the ignition cable and the engine cover to be consumed by breaking the first steel wire, ensuring that the second steel wire is not broken and can hold the ignition cable and the engine cover.

[0033] 4. The present invention provides crimping sleeves at both ends of the two steel wire ropes, and the steel wire ropes movably pass through the through holes in the crimping sleeves to form loops of variable size, so that the steel wire ropes can consume part of their kinetic energy through sliding friction with the through holes of the crimping sleeves before being straightened, thereby ensuring that the second steel wire rope is not ultimately broken, thereby improving the reliability of the ignition cable assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a schematic diagram of the installation of a tail ignition cable assembly for a tail ignition missile during use.

[0035] Figure 2 The present invention is a structural schematic diagram of a tail ignition cable assembly for a tail ignition missile.

[0036] Among them, 1-ignition cable, 2-hair guide frame, 3-engine cover, 4-first steel wire rope, 5-second steel wire rope, 6-crimping sleeve, 7-fixing structure, 8-connector. DETAILED DESCRIPTION

[0037] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0038] An embodiment of the present invention provides an ignition cable assembly for a tail-ignition missile. In addition, two steel wire ropes of different lengths and both shorter than the ignition cable 1 are provided on the basis of a traditional ignition cable 1. One end of each of the two steel wire ropes is mounted on a launcher frame 2, and the other end is mounted on the end of the ignition cable 1 facing away from the launcher frame 2. This allows the steel wire ropes to be straightened before the ignition cable 1 after the tail-ignition missile is launched. The steel wire ropes absorb most of the flight kinetic energy of the ignition cable 1 and the engine cover 3, thereby avoiding the problem of the ignition cable 1 being torn off and the missile being collided with due to the torn ignition cable 1.

[0039] like Figure 1 and Figure 2 As shown, an ignition cable assembly for a tail-ignition missile includes an ignition cable 1, a first steel wire rope 4, and a second steel wire rope 5. One end of the ignition cable 1 is detachably connected to a launcher frame 2 via a connector 8, and the other end is detachably connected to an engine cover 3 of the tail-ignition missile via a connector 8. One end of the first steel wire rope 4 is mounted on a fixing structure 7 on the launcher frame 2, and the other end is mounted on the connector 8 at the end of the ignition cable 1 facing away from the launcher frame 2. The second steel wire rope 5 is mounted in the same manner as the first steel wire rope 4.

[0040] like Figure 1 As shown, considering that the steel wire rope should play a role in preventing the ignition cable 1 from being torn, the steel wire rope should be straightened before the ignition cable 1, so the lengths of the first steel wire rope 4 and the second steel wire rope 5 should be shorter than the length of the ignition cable 1. The two steel wire ropes in the ignition cable assembly are of different lengths, and the shorter first steel wire rope 4 is straightened and tightened first until it is broken, and then the longer second steel wire rope 5 is straightened to completely pull the ignition cable 1. The two steel wire ropes act in sequence, ensuring the reliability of the ignition cable assembly; and in order to enable the first steel wire rope 4 to consume most of the flying kinetic energy of the ignition cable 1 and the engine cover 3, the diameter of the first steel wire rope 4 should be larger than the diameter of the second steel wire rope 5 on the basis that the length of the first steel wire rope 4 is shorter than the length of the second steel wire rope 5. In this way, most of the flying kinetic energy of the ignition cable 1 and the engine cover 3 is consumed by the breaking of the first steel wire rope 4, ensuring that the second steel wire rope 5 is not broken and can pull the ignition cable 1 and the engine cover 3. Of course, the first steel wire rope 4 can also be designed to be shorter and thinner than the second steel wire rope 5, so that after the first steel wire rope 4 is broken, the longer and thicker second steel wire rope 5 can continue to absorb the remaining kinetic energy, and the second steel wire rope 5 is not broken, that is, the kinetic energy is consumed more evenly by the first steel wire rope 4 and the second steel wire rope 5, but this method is not as reliable as the previous method, and this embodiment adopts the previous method.

[0041] Specifically, if Figure 1As shown, both ends of the first steel wire rope 4 and both ends of the second steel wire rope 5 are fixed with a crimping sleeve 6 made of aluminum alloy; the crimping sleeve 6 is provided with two through-holes, one of which is fixedly connected to the end of the steel wire rope, and the other is slidably connected to the steel wire rope. Specifically, the first steel wire rope 4 passes through a through-hole on the crimping sleeve 6 fixed thereto, and forms a variable-size ring at both ends; similarly, the second steel wire rope 5 also passes through a through-hole on the crimping sleeve 6 fixed thereto, and forms a variable-size ring at both ends. Since the steel wire rope and the crimping sleeve 6 are widely available and inexpensive, this increases the applicability of the ignition cable assembly and reduces the difficulty of implementing the ignition cable assembly; the ends of the first steel wire rope 4 and the second steel wire rope 5 are both mounted on the hair guide frame 2 and the ignition cable 1 through the rings. Thus, before the first and second steel wire ropes 4 and 5 are straightened, the loops must first be reduced in size, that is, the steel wire ropes and the crimping sleeve 6 first generate sliding friction to consume a portion of the kinetic energy between the engine cover 3 and the ignition cable 1, thereby improving the ignition cable assembly's anti-breaking protection of the ignition cable 1. This design method of providing crimping sleeves 6 at both ends of the two steel wire ropes, and the steel wire ropes movably passing through the through holes in the crimping sleeves 6 to form a loop of variable size, allows the steel wire ropes to consume a portion of their kinetic energy through sliding friction with the through holes in the crimping sleeves 6 before being straightened, thereby ensuring that the second steel wire rope 5 is ultimately not broken, thereby improving the reliability of the ignition cable assembly.

[0042] like Figure 1 As shown, the specific structure of the connection between the wire rope and the hair guide frame 2 can be varied. In this embodiment, a fixing structure 7 consisting of two symmetrical brackets and a crossbar connected by bolts to the brackets is provided at the rear end of the hair guide frame 2. A ring at one end of the wire rope is mounted on the fixing structure 7. This bolted connection between the brackets and the crossbar allows for convenient and quick installation and replacement of the wire rope. Regarding the connection between the wire rope and the ignition cable 1, to avoid excessive component count, two symmetrical through-holes are provided in the housing of the connector 8 at the end of the ignition cable 1 facing away from the hair guide frame 2. One through-hole houses the first wire rope 4, and the other houses the second wire rope 5. This design reduces the number of components in the entire ignition cable assembly, resulting in a more compact structure and improved safety and reliability.

[0043] Obviously, the core idea of ​​the present invention is to consume the flying kinetic energy of the ignition cable 1 and the engine cover 3 through the steel wire rope, thereby avoiding the ignition cable 1 from being torn off. Therefore, the number and thickness of the steel wire ropes can be flexibly set, and are not limited to the specific implementation methods disclosed in the embodiments of the present invention. Even the steel wire ropes can be replaced by other materials with strong tensile properties.

[0044] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ignition cable assembly for a tail-ignition missile, characterized in that: It comprises an ignition cable (1), a first steel wire rope (4) and a second steel wire rope (5); One end of the ignition cable (1) is connected to the missile launcher (2), and the other end is connected to the engine cover (3) of the tail ignition missile; One end of the first steel wire rope (4) is mounted on the hair guide frame (2), and the other end is mounted on an end of the ignition cable (1) facing away from the hair guide frame (2); One end of the second steel wire rope (5) is mounted on the hair guide frame (2), and the other end is mounted on an end of the ignition cable (1) facing away from the hair guide frame (2); The length of the first steel wire rope (4) is smaller than the length of the second steel wire rope (5), and the diameter of the first steel wire rope (4) is larger than the diameter of the second steel wire rope (5); The length of the second steel wire rope (5) is less than the length of the ignition cable (1).

2. The ignition cable assembly according to claim 1, wherein Both ends of the first steel wire rope (4) and both ends of the second steel wire rope (5) are fixedly connected with crimping sleeves (6); The crimping sleeves (6) are all provided with perforations; The first steel wire rope (4) passes through the through hole of the crimping sleeve (6) fixed thereto, and forms a loop at each end; The second steel wire rope (5) passes through the through hole of the crimping sleeve (6) fixed thereto, and forms a loop at each end; The ends of the first steel wire rope (4) and the second steel wire rope (5) are both mounted on the hair guide frame (2) and the ignition cable (1) via sleeves.

3. The ignition cable assembly according to claim 2, wherein: The tail end of the hair guide frame (2) is provided with a fixing structure (7); The first steel wire rope (4) and the second steel wire rope (5) are sleeved on the fixed structure (7) via rings.

4. The ignition cable assembly according to claim 3, wherein: The fixing structure (7) comprises two symmetrically arranged brackets and a crossbar detachably mounted on the two brackets; A collar is sleeved on the crossbar.

5. The ignition cable assembly according to claim 4, wherein: Both ends of the ignition cable (1) are provided with connectors (8); One end of the ignition cable (1) is detachably connected to the hair guide frame (2) via the connector (8), and the other end is detachably connected to the engine cover (3) via the connector (8).

6. The ignition cable assembly according to claim 5, wherein: A through hole is provided on the connector (8) connected to the engine cover (3); The rings at the other ends of the first steel wire rope (4) and the second steel wire rope (5) are sleeved in the through hole.

7. The ignition cable assembly according to claim 6, wherein: Two symmetrical through holes are provided on the connector (8); A ring for the first steel wire rope (4) is sleeved in one of the through holes, and a ring for the second steel wire rope (5) is sleeved in the other through hole.

8. The ignition cable assembly according to claim 4, wherein: The bracket is connected to the cross bar via fasteners.

9. The ignition cable assembly according to any one of claims 2 to 8, wherein: The crimping sleeve (6) is made of aluminum alloy.

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