CN204854467U - Heavy -calibre howitzer shot rammer - Google Patents

Abstract

The utility model discloses a heavy -calibre howitzer shot rammer, it includes shot card cap, preceding counter weight box, connecting pin, back counter weight box, adapter, its key feature is, preceding, back counter weight box couples together through the connecting pin, back counter weight box passes through thread connection with the adapter again be in the same place, the internal thread of adapter bottom with wipe big gun pole thread connection, messenger's counter weight box, whole of adapter formation, cannon operating personnel forces the shot to withdraw from the cannon coyote hole through wiping big gun pole and the huge momentum that shot card cap impactes. The utility model is suitable for a traditional heavy -calibre howitzer has been solved after the rifling is got into to the shot bearing band to the experiment and the maintenance of heavy -calibre howitzer, and the shot is got into pressure and barrel inner wall produce plastic deformation's combined action because of expend with heat and contract with cold under, gets the problem that the shot is wasted time and energy, has better application prospect.

Description

A kind of heavy caliber howitzer bullet rammer

Technical field

The invention belongs to cannon trial-production test field, relate generally to a kind of heavy caliber howitzer bullet rammer.

Background technology

Novel cannon is in trial-production process of the test, because of reasons such as emergency situations or cannon faults itselfs, normal firing test cannot be completed, in this case, artillery operation personnel are often needed to be taken out from cannon coyote hole by the bullet being fit into thorax, to guarantee the safety of personnel and cannon.Focus army material-155mm the gun-howitzer competitively developed for each military power of the world, its bullet quality is 55Kg, after the red copper bearing band of bullet clamp-ons rifling, by squeeze pressure and barrel inwall because of the acting in conjunction producing plastic deformation of expanding with heat and contract with cold, when cannon breaks down or other reasons cannot complete shooting, operating personnel are difficult to bullet to take out from coyote hole.In conjunction with the feature of cannon coyote hole structure, generally by the instrument of extracting, according to gun muzzle to breech direction, in barrel, bullet need be clashed into energetically takes out bullet.Original instrument that extracts forms by bullet snap ring with wiping big gun bar two parts of funnel type joint, drogue can avoid Projectile Fuze, bullet is forced to exit coyote hole by the anchor ring clashing into bullet snap ring, but due to original extract instrument lighter weight and clash into bullet snap ring time easy sideslip, operating personnel have often taken very large muscle power all cannot take out bullet, funnel type joint easy sideslip in knockout process strikes fuse head, also has certain potential safety hazard.So in cannon trial-production experimental stage, design a kind of heavy caliber howitzer bullet rammer of safe and convenient, become the problem that cannon research staff needs to solve.

Utility model content

The technical problems to be solved in the utility model is, to extract unsafe conditions of wasting time and energy, provide a kind of heavy caliber howitzer bullet rammer for heavy caliber howitzer bullet.

A kind of heavy caliber howitzer bullet rammer that the utility model provides comprises bullet card cap, front counterweight box, connecting pin, rear counterweight box, adapter.The cavity of former and later two described counterweight box inside is used for depositing mass, and mass can choose the material such as sandy soil, stone according to the environment at scene; Forward and backward weight device is coupled together by connecting pin; Rear counterweight box and adapter are by together with thread connection, and the bottom of adapter is left and the internal thread wiped big gun bar and be connected.Bullet card cap in use, is first put into barrel from gun muzzle by rammer, bullet card cap being shifted onto the coyote hole portion in barrel and props up bullet, making the blind hole limit of bullet card cap front end face and the arc surface reliable contacts in howitzer bullet bullet portion by wiping big gun bar.Connecting pin is used for connecting and fixes forward and backward counterweight box and adapter, adapter is threaded connection with wiping big gun bar and makes counterweight box, adapter forms an entirety, the huge momentum that artillery operation personnel are clashed into by using wiping big gun bar and bullet card cap, forces bullet to exit cannon coyote hole.

Overall technology effect of the present utility model is embodied in the following aspects.

(1) heavy caliber howitzer bullet rammer of the present utility model employs the bullet card cap of separation, on bullet card cap, the arc surface that Projectile Fuze blocks bullet front end can rapidly, reliably be avoided in the blind hole limit of front end face, the front end face blind hole of bullet card cap has the centering function in barrel, rear end face provides effect of impact face, has a multiplex function.This bullet card cap is simple, and principle is easy, is conducive to the life and reliability improving rammer.

(2) the forward and backward counterweight box parts of rammer in the utility model, have employed the cavity body structure of hollow, effectively reduce part quality, greatly reduce hauled weight.The mass that its internal cavity is deposited, according to the environment chosen material of testing ground, can improve the ambient adaptability of this rammer.

(3) in the utility model, the connector of rammer is used for connecting wiping big gun bar, and the stress surface of adapter is the anchor ring contacted with rear counterweight box, and the screw thread of adapter only plays connection function, substantially increases the life-span of adapter.By using existing wiping big gun bar, effectively reduce the manufacturing cost of this rammer.

Accompanying drawing explanation

Fig. 1 is internal structure of the present utility model composition schematic diagram;

Fig. 2 is structure of the present utility model composition schematic diagram;

Fig. 3 is that rear counterweight box of the present utility model connects schematic diagram with adapter.

Detailed description of the invention

Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.

The heavy caliber howitzer bullet rammer of the utility model preferred embodiment comprises bullet card cap, counterweight box, connecting pin, adapter.Below by the composition of detailed placement service and interaction relationship.

As shown in Figure 1, the entirety that bullet card cap 1 and front counterweight box 2, connecting pin 3, rear counterweight box 4, adapter 5 combine is separated.Rammer in use, first bullet card cap 1 is put into barrel from gun muzzle, bullet card cap 1 shifted onto the coyote hole portion in barrel by wiping big gun bar and props up bullet, make the blind hole limit of bullet card cap 1 front end face and the arc surface reliable contacts of howitzer bullet front end, bullet card cap 1 rear end face is for clashing into working face.Wherein the diameter of bullet card cap 1 front end face blind hole and depth dimensions are greater than the fuse size on howitzer bullet top, and leave safe clearance.External diameter and the barrel internal diameter of rammer retain enough spaces.

According to Fig. 2, forward and backward counterweight box is fixed together by connecting pin 3 by front counterweight box 2 and rear counterweight box 4, the cavity that the cavity of front counterweight box 2 and rear counterweight box 4 inside is used for depositing mass counterweight box is used for depositing mass, and mass can choose the material such as sandy soil, stone according to the environment of testing ground.

After according to Fig. 3, counterweight box 4 and adapter 5 are by together with thread connection, the internal thread of adapter 5 bottom with wipe big gun bar external screw thread and be connected, make counterweight box, adapter form an entirety.The stress surface of adapter is the anchor ring A face contacted with rear counterweight box, and the screw thread of adapter only plays connection function.

Claims (2)

1. a heavy caliber howitzer bullet rammer, it comprises bullet card cap, front counterweight box, connecting pin, rear counterweight box and adapter, and the cavity of former and later two weight device inside is used for depositing mass, and forward and backward counterweight box is coupled together by connecting pin; Rear counterweight box and adapter are by together with thread connection, and the bottom of adapter is left and the internal thread wiped big gun bar and be connected; It is characterized in that: bullet card cap and counterweight box separate, the hole of bullet card cap front end is used for blocking Projectile Fuze, and rear end face is for clashing into working face; The screw thread of adapter only plays connection function, and the stress surface of adapter is the anchor ring contacted with rear counterweight box.

2. heavy caliber howitzer bullet rammer according to claim 1, it is characterized in that: the blind hole limit of bullet card cap contacts with the arc surface of howitzer bullet front portion, the diameter of bullet card cap front end face blind hole and depth dimensions are greater than the fuse size on howitzer bullet top, and leave safe clearance.