KR20100068376A - Discarding sabot for guide and method for attachment of such sabots - Google Patents

Abstract

In order to maintain predetermined tolerance conditions for the front guide region (7) in a simple manner without reconditioning even if a drive or guide cage (5) is made of plastic, the invention proposes beginning with a premounted cage shot (1), wherein the cage segments directly adjacent to one another on the circumferential sides surrounding the shot body are selected such that the cage (5) has an outer diameter in the front guide region (7) that is less than the predetermined target diameter (Do). The adjustment of the diameter of the guide region (7) then occurs subsequently, for example, by the insertion of an insert designed in the shape of a bushing, said insert having a conical outer surface, into an annular gap (11) remaining between the shot body (2) and the segments of the support wall (8) of the cage (5).

Description

DISPARDING SABOT FOR GUIDE AND METHOD FOR ATTACHMENT OF SUCH SABOTS}

The present invention relates to a detachable or guide sabot and a method for attaching the bin, in particular for a blank projectile.

The split-tank projectile is known, for example, from DE 43 30 417 C2. It includes a stall-diameter projectile body and a detachable guiding barrel, the detachable guiding barrel being disposed at the rear and supporting a rear region of the projectile body, and a detachable grenade enclosing the projectile body and shaped as a shell half. The main segment is a barrel segment. The split guide barrel has a circumferentially outer protruding guide region in the front region and a support wall in the front region for the central region of the projectile body, which extends radially inwardly and is projected through the projectile body. Has a central opening. For both weight and simple manufacturing reasons, the split guide barrel is preferably made of carbon fiber or glass fiber reinforced plastic and is therefore very cost effective and relatively large in size by injection molding or compression molding. It can be prepared as.

However, during the manufacture of such detachable bin projectiles made of plastic, there is a problem in following the strict tolerances established for the front guide area of the detachable bins, which allow them to be supported inside the barrel of the corresponding weapon. It was confirmed that. In the case of 120 mm tank bombs, for example, the corresponding outer diameter of the guide area should be between 119.65 and 119.83 mm, which is practically impossible to achieve without costly reworking for injection molded parts or compression molded parts made of plastic.

The present invention, even when the split or guide bins are made of plastic and made by injection molding or compression molding, follows the tolerances set forth precisely, without reworking, in particular for the front guide region of the split bin projectile mentioned at the outset. The focus is on implementing separate or guiding tanks that make this possible in a simple way.

According to the invention, this object is achieved by the features of claim 1 with respect to the cask, and by the features of claim 10 with respect to the method of attaching the cask. Other advantageous advantages of the invention are disclosed in the dependent claims.

The present invention is basically based on the idea of using a prefabricated separate or guided cask, in which the drive or guide segment directly coupled to each other on the circumferential side and enclosing the projectile body is a cask in the front guide region. It is chosen to have an inner diameter somewhat larger than the outer diameter of this dart projectile, and so that an annular gap remains between the projectile body and the inner surface of the central opening. On the basis of this preassembled split tank projectile, the diameter of the guide region is then set to a predetermined nominal value by introducing a so-called adjustment element into the annular gap from the front of the split guide barrel.

In order to precisely adjust the diameter of the front guide region, the preassembled unit can be inserted into an annular assembly tool (caliber adjusting tool) in the region of the guide region, the inner diameter of which corresponds to the predetermined nominal diameter value of the guide region. do.

The adjustment element can be forcefully fitted in the central opening by an adhesive joint or a weld joint between the adjustment element and the support wall.

In order to forcibly fit the bin segments of the bins, each of the bin segments is adhesively bonded, or similarly welded, to the corresponding indentation on the circumferential side, in the form of lugs and in each adjacent bin segment. At least one component may be provided that is coupled to the corresponding indent by a joint.

In a preferred embodiment of the present invention, the bin projectile produced using the method according to the present invention is a projectile wherein the bin has preferably a bin segment in the form of only two shell halves. The adjusting element is preferably made of a deformable plastic material, as a result of which the material deforms during the pressing of the cloth into the annular gap, thus the contour of the projectile body and the barrel segment (segment of the supporting wall) without any tolerance. Is matched to the contour of.

Inserts in the form of bushings and having a conical outer surface can be used as adjusting elements. The insert in the form of a bushing comprises two parts in the form of shell halves, wherein the separating line located between these two parts is radially adjacent to the separating line of the two halves of the supporting wall in the split cask segment. However, the insert can also be formed integrally and have a weak point in an area radially adjacent to the dividing line of the two halves of the support wall in the split bin segment. The inserts are pressed into the annular gap until the outer diameter of the front guide region corresponds to the predetermined nominal diameter value due to the supporting wall segments of the split tank, which are supported apart from each other on the pressed insert. At this time, not only are the adjustment elements fixedly fit in the annular gap, but also the cask segments of the feed cask are coupled to each other by force fit.

The insert has been found to be advantageous in the form of a collar type bushing, which limits the axial movement of the insert by the collar.

As an alternative, the adjustment element may be formed of a highly deformable silicone rubber (Shore 40), which is bent to match the support wall contour of the guide barrel, while enclosing the support wall from the top and bottom. Cheap and on the other hand press against the projectile. Attachments in the form of brackets or clasps are deformed between the shell half and the projectile by an assembly tool that is pulled over the attachment.

One major advantage of using a deformable plastic material (eg rubber) for the adjustment element is that mechanical rework is no longer necessary, the tolerances of the forming tool can be individually matched to the barrel projectile, and the forming tool itself Is no longer necessary to be designed with such high precision.

Other details and advantages of the present invention will become apparent from the following exemplary embodiments described in the drawings.

According to the present invention, even when the split or guide bins are made of plastic and are manufactured by injection molding or compression molding, the tolerance conditions prescribed for the front guide area of the split bin projectile, precisely in particular at the outset, without reworking A detachable or guided cask is implemented which makes it possible to follow in a simple manner.

1 is a penetrating segment of a cask, which is already spaced far enough from each other by being pressed, and the front guide region of the cask has a predetermined nominal diameter value, penetrating the split or guided cask projectile according to the invention. Is a longitudinal cross section,
FIG. 2 is a cross-sectional view through the tank barrel projectile as illustrated in FIG. 1, along a cutting line labeled II-II in FIG. 1, FIG.
3 is a cross-sectional view taken along a cutting line denoted as III-III in FIG. 2,
4 is a perspective view of the cask projectile illustrated in FIG. 1;
5 shows another variant of the adjustment element,
FIG. 6 shows the insertion of the adjustment element of FIG. 5 into the split-tank projectile. FIG.

In Figures 1 and 4, 1 indicates a detachable missile projectile, for example a 120 mm tank gun, which serves as a so-called detachable tank (but as an alternative it may also be a detachable tank). The barrel projectile 1 comprises a barn diameter projectile body 2 and a substantially hollow cylindrical guide barrel 5 which comprises two shell halves (a guide barrel segment) ( 3, 4). The guide barrel 5 is provided with a drive disk (pusher plate) 6 in the rear region, and the projectile body 2 is supported on the guide barrel in the rear.

The guide barrel 5 is made of plastic, for example, and has a circumferential guide region 7 in the front region, which projects from the outer side so as to be supported on the barrel inner wall of the inorganic barrel, not shown. . In the front region of the guide barrel 5 is also provided a (segmental) support wall 8 which extends radially inwardly and opens the central opening 9 through which the projectile body 2 passes. Have

Between the inner surface 10 of the central opening 9 in the support wall 8 and the projectile body 2 there is an annular gap 11, which is an adjustment element 12, with a highly deformable plastic material. A bushing shaped insert 12.1 which is made and has a conical outer surface 13 is pressed, which insert is coupled to the support wall 8 by interference fit (see also FIG. 3). In this case the insert 12.1 in the form of a bushing consists of two parts 15, 16 (FIG. 2) in the form of a shell halves, with a separating joint 17 positioned between the two parts 15, 16. Adjacent radially to the separating joints 18 of the two segments 19, 20 of the support wall 8.

In order to set the outer diameter of the guiding region 7 very precisely to a predetermined nominal value, the barrel segments 3, 4 are arranged so that they can be moved radially (before they are joined to each other in an interference fit) and pressed together In the state (ie before the insert is inserted into the annular gap) it is selected to have an outer diameter (eg 119.7 mm) smaller than the predetermined nominal diameter value Do (eg 119.8 mm) in the front guide region 7.

Thereafter, the insert 12.1 in the form of a bushing is inserted into the relatively narrow annular gap 11 from the front side of the guide barrel 5, and is supported on the pressed insert 12.1 in a spaced apart state from each other. The outer diameter of the guide region 7 is precisely adjusted so that the segments 19, 20 of 8) move axially until the outer diameter of the front guide zone corresponds to the predetermined nominal diameter value Do. For this purpose, the front guide region 7 can be inserted into an annular assembly tool (not shown) whose inner diameter corresponds to the nominal diameter Do of the guide region 7.

The insert 12. 1 is then joined to the support wall 8, and the barrel segments 3, 4 are joined to each other, both of which are forcibly fitted by eg adhesive joints. In order to achieve interference fit engagement of the barrel segments 3 and 4 of the guide barrel 5, each of the barrel segments 3 and 4 has a lug-shaped and corresponding adjacent barrel segment (on the circumferential side). In the indentation 23 of 4, 3, a portion 22 which is adhesively bonded or welded is provided.

As an alternative, as shown in Fig. 5, the adjustment element 12, which is a bracketed or clasp-shaped attachment 12.2, can be pressed against the support wall 8, so that the narrow annular gap 11 is filled. The attachment portion 12.2 has a shape that matches the support wall 8, and has an upper surface 12.2.1 and a bottom surface 12.2.2 surrounding the support wall 8, while these two surfaces 12.2.1 12.2.2) between 12.2.2) is pressed against the projectile 2 (Fig. 6).

The attachment part 12.2 presses the shell halves 3, 4 of the barrel in the outward direction. Due to the calibration tool (not shown in more detail) being pulled over the attachment, the attachment 12.2 deforms between the shell halves 3, 4 and the projectile 2. At this time, the shell halves 3, 4 are firmly coupled to each other. As with the insert 12.1, the attachment portion 12.2 is preferably formed of two or more parts.

The insert 12.1 or attachment 12.2, ie the adjusting element 12, also has good damping properties as a forming element when passing through the barrel.

Modifications to the engagement of the shell halves, ie the barrel segments 3, 4, include the use of flanged and / or welded bolts, additional elements such as screwed joints or adhesive lugs with weak points. Will be used.

1: Detachable or guided missile projectile
2: projectile body
3, 4: shell half, Songtan segment
5: detachable or guide tank
6: drive disk
7: guide area
8: support wall
9: center opening
10: inside
11: annular clearance
12: adjustment element
12.1: Insert
12.2: Attachment
13: exterior
14 color
15, 16: shell half-shaped part
17: separating joint (insert)
18: separation joint (support wall)
19, 20: segment
22: lug part
23: indentation

Claims (15)

A sabot projectile (1) having a detachable or guided cask (5) comprising at least two cask segments (3, 4),
A barrel projectile, characterized in that it comprises an adjustment element (12) between the projectile body (2) and the barrel segment (3, 4). The shell projectile of claim 1, wherein the shell (5) has only two shell segments (3, 4) in the form of shell halves. The barrel projectile of claim 1 or 2, wherein the adjustment element (12) is made of a deformable plastic material. The barrel projectile according to any one of claims 1 to 3, wherein the adjustment element is an insert (12.1) in the form of a bushing. 5. The insert 12.1 in the form of a bushing according to claim 4 is formed in one or more parts and in an area radially adjacent to the separating joint 18 of the two segments 19, 20 in the support wall 8. Songtong projectile having a weak point. 6. The insert (12.1) according to claim 4 or 5, wherein the insert (12.1) in the form of a bushing comprises two parts (15, 16) in the form of a shell halves, the separation being located between these two parts (15, 16). A barrel projectile, characterized in that the joint (17) is radially adjacent to the separating joint (18) of the two segments (19, 20) of the support wall (8) in the barrel (5). The barrel projectile according to any one of claims 1 to 5, wherein the insert (12.1) is in the form of a collar type bushing. The projectile of claim 1, wherein the adjustment element (12) is an attachment (12.2) such as a bracket or clasp that can be pressed against the support wall (8). The barrel projectile according to claim 1, wherein the barrel segment (3, 4) is made of plastic. A cask projectile attachment method for attaching a cask projectile to a barn diameter projectile main body 2 and a segment-shaped substantially hollow cylindrical detachable or guide cask 5, the cask projecting in a circumferential direction in the front region. It has a guide area 7 and has a support wall 8 in front of the central area of the projectile body 2, which support wall 8 extends radially inward and the projectile body 2 passes through and fires. In the tank projectile attachment method, which has a central opening (9) to be provided,
The projectile body 2 is first introduced into the barrel 5, and the barrel segments 3, 4 adjacent to each other on the circumferential side are configured such that the barrel segments can be moved radially and pressed together. In its state, its outer diameter in the front guide region 7 of the barrel 5 is smaller than the predetermined nominal diameter value Do, and the inner surface of the central opening 9 in the projectile body 2 and the support wall 8. Is selected such that an annular gap remains between 10,
Next, pressing the adjusting elements 12, 12.1, 12.2 into the annular gap 11 from the front of the barrel;
Thereafter, the adjustment elements 12, 12.1, 12.2 are forcibly fitted in the annular gap 11 and the case segments 3, 4 of the feed barrel 5 are forcibly fitted to each other. A method for attaching a cask projectile, characterized in that coupled to. The prefabricated unit according to claim 10, wherein the prefabricated unit comprises a projectile body (2) and a barrel (5) for matching the diameter of the front guide region (7) to a nominal diameter value (Do). And the inner diameter of the annular assembly tool corresponds to the nominal diameter value (Do) of the front guide region (7). 12. The barrel according to claim 10 or 11, characterized in that the adjustment element is adhesively bonded or welded to the support wall (8) to forcibly fit the adjustment elements (12, 12.1, 12.2). How to attach a projectile. 13. The cylinder segments 3, 4 according to any one of claims 10 to 12, in order to forcibly fit the tank segments 3 and 4 of the tank barrel 5, respectively. On the side, at least one portion 22 is provided that is lug-shaped and adhesively bonded to the indentation 23 of the corresponding adjacent sentry segment or joined to the indent by a weld joint. How to attach a projectile. 14. A support wall according to any one of claims 10 to 13, wherein an insert 12.1 in the form of a bushing is used as the adjustment element 12, the insert being supported spaced apart from each other on the pressed insert 12.1. Segment 19, 20 means that the outer diameter of the front guide region 7 is pressed into the annular gap 11 until it corresponds to the predetermined nominal diameter value Do. . 14. An assembly according to any one of claims 10 to 13, wherein as the adjustment element 12 an attachment 12.2 in the form of a bracket or clasp is used, the attachment 12.2 being pulled over this attachment. A method for attaching a canister projectile, characterized by being deformed between the canister segment (3, 4) and the projectile (2) by a tool.

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