CN209399847U - A kind of projectile bullet support with response type obturator ring and separation windage face - Google Patents

Abstract

The projectile bullet support with response type obturator ring and separation windage face that the utility model discloses a kind of, including shell, pre-cut separation slit, windage inclined-plane, projectile bracket, response type obturator ring, cutting edge tail skirt and to play backing recessed, first is that traditional equal bores are held one's breath change in design as response type obturator ring；Second is that the section shortening that will hold one's breath, reduces friction surface product；Third is that designing separation windage inclined-plane in bullet support ante-chamber.Response type hold one's breath ring design be exactly play backing portion design response deformation tail skirt, when not emitting, bullet support obturator ring and rifle (big gun) thorax are microgap cooperation, when transmitting, it is acted on by powder gases, tail skirt will make obturator ring combine closely with bore to circumferentially extending, due to the cutting edge structure of deformation position, control friction area always in a certain range.

Description

A kind of projectile bullet support with response type obturator ring and separation windage face

Technical field

The utility model relates to a kind of projectiles using the auxiliary device of ballistic rifle (big gun) transmitting acquisition certain speed, especially It is related to a kind of projectile bullet support with response type obturator ring and separation windage face.

Background technique

When projectile is launched using ballistic rifle, to obtain this Technical behaviour of certain speed, often due to The reasons such as material, shape and the bore of projectile can not be matched with transmitter barrel and propelling charge cartridge case, reached and slided surely Determine, hold one's breath the purpose of good, and needs to complete above-mentioned purpose by bullet support.In use, projectile is placed in bullet support bracket (hole), Bullet support and cylindrantherae are combined in transmitter thorax again.After transmitting, bullet support will push projectile to fly out rifle (big gun) mouth, at this moment need bullet Support separates with projectile as early as possible and deviates projectile trajectory, in order to avoid projectile and bullet support is caused to hit target same position, Difficulty is caused to subsequent hit effect study, meanwhile, the separation of bullet support cannot cause to disturb to projectile, in order to avoid influence projectile Flight path.The function of being undertaken from bullet support is it was determined that it should have following characteristics: 1. effectively hold one's breath, and improve gunpowder and utilize Efficiency；2. friction is reduced, to obtain more high initial speed；3. reliable, separation in time, avoids influencing experiment effect.The prior art lacks Point:

Disadvantage one: the bores such as existing bullet support generally use hold one's breath technology, bullet support and barrel as interference fit, cause to rub in thorax Wiping power is big, and breech pressure is often gone out from the connecting portion of pre-cut separation slit, makes bullet support in thorax with regard to disintegration and failure, causes to send out It is lost to lose；Disadvantage two: since existing bullet support thorax internal friction is big, and frictional force is affected by bullet support machining accuracy, causes bullet The speed distribution for holding out rifle (big gun) mouth is larger, is unfavorable for experimental state control；Disadvantage three: due to existing bullet support thorax internal friction compared with It is big and uncontrollable, when emitting low speed projectile, often due to gunpowder thrust is not enough to overcome frictional force, bullet support is caused to stay thorax Failure.Disadvantage four: the separation of existing bullet support is after flying out rifle (big gun) mouth by bullet support, and bullet support ante-chamber air pressure increases to carry out Separation of the projectile seat, bullet support ante-chamber air pressure suffers from flying speed influence again, often in low speed emission state due to ante-chamber pressure Power deficiency causes separation of the projectile seat to be not thorough or separate sluggishness, influences experiment effect.

Utility model content

The purpose of this utility model is that solve the above-mentioned problems and provides one kind with response type obturator ring and divide Projectile bullet support from windage face.

The utility model achieves the above object through the following technical schemes:

The utility model includes shell, pre-cut separation slit, windage inclined-plane, projectile bracket, response type obturator ring, cutting edge Tail skirt and bullet backing are recessed, and the perforative pre-cut in center line section setting two sides of the shell separates slit, the windage inclined-plane It is fixedly installed on the intracorporal bottom of the shell, projectile bracket is provided in the middle part of the windage inclined-plane, the response type is held one's breath Ring is fixedly installed on the bottom of the shell, and the response type obturator ring is located at the position of the projectile bracket, the sound The edge shape for answering formula obturator ring is cutting edge tail skirt, and it is recessed that the middle part of the cutting edge tail skirt forms the bullet backing.

The utility model has the beneficial effects that:

The utility model is a kind of projectile bullet support with response type obturator ring and separation windage face, with prior art phase There is following three aspects unique design than the bullet support of, the utility model design: first is that being by the change in design of holding one's breath of traditional equal bores Response type obturator ring；Second is that the section shortening that will hold one's breath, reduces friction surface product；Third is that designing separation windage inclined-plane in bullet support ante-chamber. Response type ring design of holding one's breath is exactly to play backing portion design response deformation tail skirt, when not emitting, bullet support obturator ring and rifle (big gun) thorax For microgap cooperation, when transmitting, being acted on by powder gases, tail skirt will make obturator ring combine closely with bore to circumferentially extending, by It in the cutting edge structure of deformation position, controls friction area always in a certain range, avoids disadvantage one, disadvantage two, disadvantage three Described problem occurs；The design on separation windage inclined-plane can then make under identical bullet support ante-chamber pressure condition, entered chamber air-flow and divided It is acted on from windage face normal component, keeps separating torque bigger, separation of the projectile seat is more timely, more thoroughly, avoids four problem of disadvantage.

Detailed description of the invention

Fig. 1 is the side perspective view of the utility model；

Fig. 2 is the other side perspective view of the utility model.

In figure: 1- shell, 2- pre-cut separate slit, 3- windage inclined-plane, 4- projectile bracket, 5- response type obturator ring, 6- Cutting edge tail skirt, 7- bullet backing are recessed.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing:

As depicted in figs. 1 and 2: the utility model includes shell 1, pre-cut separation slit 2, windage inclined-plane 3, projectile bracket 4, the perforative pre-cut in two sides is arranged in response type obturator ring 5, cutting edge tail skirt 6 and bullet backing recessed 7, the center line section of the shell Slit is separated, the windage inclined-plane is fixedly installed on the intracorporal bottom of the shell, is provided with projectile in the middle part of the windage inclined-plane Object bracket, the response type obturator ring is fixedly installed on the bottom of the shell, and the response type obturator ring is located at the throwing The position of object bracket is penetrated, the edge shape of the response type obturator ring is cutting edge tail skirt, and the middle part of the cutting edge tail skirt forms institute It is recessed to state bullet backing.

The utility model is completed using following steps:

Step 1

Material selects: aluminium alloy or nylon etc. should generally be selected to have some strength and the lesser material of density as bullet support Material.Purpose is to utilize the inertia of low density material small, and velocity attenuation is fast, separates as early as possible with projectile after muzzle out.

Step 2

Structure design: bullet support is designed according to transmitter bore, and main body is cylindrical body, including bullet support ante-chamber, separation windage are oblique Face, bullet backing is recessed, separates slit from response obturator ring, cutting edge tail skirt, pre-cut.

The function introduction and working principle of each structure design:

Bullet support ante-chamber: one is to provide the channel for placing projectile；Second is that forming local height using entering cavity space gas after muzzle out Pressure area, by separation of the projectile seat.

Separation windage inclined-plane: separation windage inclined-plane is located at ante-chamber bottom, which can mainly make full use of into chamber air-flow Impact force, make impact force windage inclined-plane normal component generate separation of the projectile seat torque, improve separation of the projectile seat reliability and Timeliness.

It is recessed to play backing: it is mainly to form propellant gas in bottom recess to be vortexed that it is recessed, which to play backing, forms partial high pressure area, And radial pressure is generated, the work of exciter response formula obturator ring.

Response type obturator ring: the bores clearance fit design such as response type obturator ring use, when not working, obturator ring and bore Belong to clearance fit, when transmitting, by the effect of backing recess powder pressure is played, the mechanical characteristic of bullet support material generates obturator ring Circumferentially extending causes obturator ring and bore to generate interference fit, reaches the effect of holding one's breath, improve the acting effect of powder gases, make Under the premise of identical transmitting survival dose, higher projectile initial velocity is obtained.

Cutting edge tail skirt: obturator ring and bore generate excessive frictional force in order to prevent, and tail skirt skirt section is designed as wedge Shape, i.e. cutting edge tail skirt.Purpose is that the deflection of obturator ring is made to be gradual change, using the direction of the launch as front end, the deflection of obturator ring Be gradually reduced from rear end to front end, make in this way interference fit tightness degree be also from back to front be gradually reduced, thus Effectively reduce the force of sliding friction of obturator ring and bore.To achieve the purpose that not only effectively to hold one's breath but also reduce friction.

Pre-cut separates slit: pre-cut separation slit is the universal design of bullet support component, and under separating torque effect, bullet support is narrow Seam can be along slit to bottom extension, until fracture completely, completes the disintegration separation of bullet support.Since pre-cut slit had both been related to bullet support point From reliability, and the bullet holder structure intensity being related in thorax, therefore when carrying out pre-cut, bullet support is complete in the thorax when guaranteeing transmitting Under the premise of whole property, extra connecting material is cut off as far as possible.

Step 3

Processing and fabricating: bullet support is prepared according to aluminum alloy materials, bar can be used, work in-process is completed in the heart.According to Nylon material, first is that machine is added into using nylon rod bar；Second is that injection molding is completed using prefabricated mould.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (1)

1. a kind of projectile bullet support with response type obturator ring and separation windage face, it is characterised in that: including shell, pre- cutting It is recessed from slit, windage inclined-plane, projectile bracket, response type obturator ring, cutting edge tail skirt and bullet backing, the center line section of the shell The perforative pre-cut in two sides is set and separates slit, the windage inclined-plane is fixedly installed on the intracorporal bottom of the shell, the wind Resistance is provided with projectile bracket in the middle part of inclined-plane, and the response type obturator ring is fixedly installed on the bottom of the shell, and described Response type obturator ring is located at the position of the projectile bracket, and the edge shape of the response type obturator ring is cutting edge tail skirt, institute Stating the middle part of cutting edge tail skirt, to form the bullet backing recessed.