Ablation slider for a box-type projectile

Abstract

The utility model discloses a kind of ablation sliding blocks for box-type launching ammunition, the ablation sliding block is distributed in the bullet body outer wall of ammunition, bullet body is by the load-bearing structure layer of inside and the protective heat-insulating layer that is laid in the outer wall of load-bearing structure layer, the ablation sliding block includes lower support block and upper ablation block, the lower support block is fixed on the load-bearing structure layer of bullet body by screw, the upper surface of lower support block is flush with protective heat-insulating layer outer surface, the upper ablation block is fixed on the upper surface of lower support block by adhesive, the outline of upper ablation block is matched with the inner shape of ammunition launching box guide rail groove;The lower support block is made of ablation-resistant material, and the upper ablation block is made of thermoplastic material.The ablation sliding block of the utility model can realize that ammunition slides out along guide rail groove in launching box, and additional resistance is not added to ammunition in flight process, to ensure the reliable and smooth launching of box-type ammunition.

Description

Technical Field

[0001] This utility model belongs to the field of box-type ammunition technology, specifically relating to an ablation slider for box-type launching ammunition. Background Technology

[0002] For canister- or box-launched munitions, a guide rail is installed inside the launch tube or box. The munition relies on a slider mounted on its surface that matches the guide rail to support its movement within the launch tube or box. After the munition ignites and exits the tube or box, the slider's function is complete, and it is no longer useful to the munition. The slider, being a protrusion on the projectile's surface, increases drag during flight, thus having a negative effect. From the perspective of improving munition performance, the presence of the slider is undesirable. Typically, the slider is installed on the projectile's surface by welding or screwing, accompanying the munition throughout its flight, inevitably reducing munition effectiveness. Utility Model Content

[0003] The purpose of this invention is to solve the problem that traditional tube- or box-type launched ammunition, which uses a slider structure fixed to the surface of the projectile, will cause drag on the projectile during flight. Therefore, an ablative slider for box-type launched ammunition is proposed.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] This utility model discloses an ablative slider for a box-type launching ammunition. The ablative slider is distributed on the outer wall of the ammunition body, which consists of an inner load-bearing structural layer and a protective heat-insulating layer laid on the outer wall of the load-bearing structural layer. The ablative slider includes a lower support block and an upper ablative block. The lower support block is fixed to the load-bearing structural layer of the ammunition body by screws, and the upper surface of the lower support block is flush with the outer surface of the protective heat-insulating layer. The upper ablative block is adhered to the upper surface of the lower support block by adhesive, and the shape of the upper ablative block matches the inner shape of the guide rail groove of the ammunition launching box. The lower support block is made of an ablation-resistant material, and the upper ablative block is made of a thermoplastic material.

[0006] The upper surface of the lower support block is provided with protrusions, and the lower surface of the upper ablation block is provided with recesses that match the upper surface of the lower support block, so as to prevent the upper ablation block and the lower support block from separating when sliding inside the ammunition launch box.

[0007] Heat-proof plugs are installed above each screw hole of the lower support block to further provide heat protection.

[0008] Work process

[0009] When the ammunition is fired, the ablation slider causes the ammunition to slide outward along the guide grooves inside the launch box. After the ammunition leaves the launch box, the upper ablation block will quickly ablate under the action of aerodynamic thermal ablation. The remaining lower support block is flush with the outer surface of the ammunition's protective heat insulation layer and will not add extra resistance to the ammunition.

[0010] Beneficial effects

[0011] The ablation slider of this invention enables the ammunition to slide outward along the guide rail groove inside the launch box, while not adding extra resistance to the ammunition during flight, thus ensuring the reliable and smooth launch of the box-type ammunition. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the ablation slider of this utility model;

[0013] In the diagram, 1-upper ablation block, 2-adhesive, 3-lower support block, 4-heat plug, 5-protective insulation layer, 6-load-bearing structural layer, 7-screw. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Example

[0016] like Figure 1 As shown, this utility model discloses an ablative slider for a box-type launching ammunition. The ablative slider is distributed on the outer wall of the ammunition body. The ammunition body consists of an inner load-bearing structural layer 6 and a protective heat-insulating layer 5 laid on the outer wall of the load-bearing structural layer 6. The ablative slider includes a lower support block 3 and an upper ablative block 1. The lower support block 3 is fixed to the load-bearing structural layer 6 of the ammunition body by screws 7. The upper surface of the lower support block 3 is flush with the outer surface of the protective heat-insulating layer 5. The upper ablative block 1 is adhered to the upper surface of the lower support block 3 by adhesive 2. The shape of the upper ablative block 1 matches the inner shape of the guide rail groove of the ammunition launching box. The lower support block 3 is made of ablation-resistant material, and the upper ablative block 1 is made of thermoplastic material.

[0017] The upper surface of the lower support block 3 is provided with protrusions, and the lower surface of the upper ablation block 1 is provided with a recess that matches the upper surface of the lower support block 3, so as to prevent the upper ablation block 1 and the lower support block 3 from separating when sliding inside the ammunition launch box.

[0018] Heat plugs 4 are provided above each screw hole of the lower support block 3 to further provide heat protection.

[0019] Work process

[0020] When the ammunition is fired, the ablation slider causes the ammunition to slide outward along the guide grooves inside the launch box. After the ammunition leaves the launch box, the upper ablation block 1 will quickly ablate under the action of aerodynamic thermal ablation. The remaining lower support block 3 is flush with the outer surface of the ammunition's protective heat insulation layer 5 and will not add extra resistance to the ammunition.

Claims

1. An ablative slider for a box-type launched ammunition, wherein the ablative slider is distributed on the outer wall of the ammunition body, the ammunition body consisting of an inner load-bearing structural layer and a protective heat-insulating layer laid on the outer wall of the load-bearing structural layer; Its features are, The ablation slider includes a lower support block and an upper ablation block. The lower support block is fixed to the load-bearing structural layer of the projectile by screws. The upper surface of the lower support block is flush with the outer surface of the protective heat insulation layer. The upper ablation block is bonded to the upper surface of the lower support block by adhesive. The shape of the upper ablation block matches the inner shape of the ammunition launch box guide rail groove. The lower support block is made of ablation-resistant material, and the upper ablation block is made of thermoplastic material.

2. The ablation slider for box-type launched ammunition as described in claim 1, characterized in that, The upper surface of the lower support block is provided with protrusions, and the lower surface of the upper ablation block has a recess that matches the upper surface of the lower support block.

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