CN221223560U - Battlefield wrench for propaganda bullets - Google Patents

Abstract

The utility model provides a battlefield wrench for propaganda bullets, belonging to the technical field of ammunition; the expansion claw is a column with a fan-shaped cross section, and the spring ring is an open circular ring; the cam shaft is divided into an upper part and a lower part, the upper half part is cylindrical and provided with a key groove, and the lower half part is of a cam structure and is used for assembling a wrench on the cam shaft; the body is of a cylindrical structure and is used for placing a bearing, a cam shaft, a bearing and a gland, and the side wall of the body is provided with three square grooves for installing expansion claws; the two ends of the wrench are cylindrical, the middle part of the wrench is a circular ring and is provided with a key slot, the wrench is connected with the cam shaft by keys, and the retainer ring is cylindrical with holes; the gland is of a circular ring structure; the elastic retainer ring is used for fixing the gland after the components in the annular groove of the body are placed; the utility model has simple structure, convenient and quick assembly and disassembly, high efficiency and greatly reduced labor intensity.

Description

Battlefield wrench for propaganda bullets

Technical Field

The utility model belongs to the technical field of ammunition, and particularly relates to a battlefield wrench for a propaganda bomb temporarily filled in an array.

Background

The propaganda bullets are mainly used for developing psychological attack on enemies, breaking down the enemy fight and weakening the fight force of the enemies. After the projectile is launched, when the projectile flies above a preset target, the fuze acts to ignite the propellant to generate high-temperature and high-pressure propellant gas, the high-temperature and high-pressure propellant gas is pressurized on the pushing plate surface and is transmitted to the projectile bottom through the supporting tile, and then the connecting threads of the projectile body and the projectile bottom are sheared, so that the fillers such as propaganda materials are thrown out of the projectile chamber. The propaganda product is unwound by self rotation, scattered by means of aerodynamic force and falls on the ground to perform psychological fight on enemy.

The manufacturing plant provides army to use in the form of semi-bullet, fuze and shooting charge. The army needs to assemble semi-bullets by filling propaganda articles on site according to different combat objects, propaganda contents and the like and then launch the semi-bullets, so that a special spanner capable of quickly screwing the bottom of the bullets is needed. The outer surface of the bullet bottom is arc-shaped, and defects such as indentation and the like affecting the assembly of the propellant powder cannot be caused, so that the bullet bottom is not suitable for being used as a clamping surface. The bottom recess of the spring is only used as a clamping surface, so that an internal expansion type wrench is needed, and the spring bottom can be clamped and torque can be provided for screwing. In order to solve the problems, the wrench is specially designed.

Disclosure of Invention

(1) Object and technical solution of the invention

The present utility model aims to provide a solution for rapid assembly of propaganda bullets, thereby solving the need for assembling propaganda bullets in arrays.

(2) Technical proposal

In order to achieve the above purpose and solve the above technical problems, the technical scheme provided by the utility model is as follows:

the battlefield wrench for propaganda bullets comprises a first bearing 1, a rising claw 2, a spring ring 3, a cam shaft 4, a body 5, a wrench rod 6, a wrench 7, a retainer ring 8, a screw 9, a key 10, a second bearing 11, a gland 12 and a hole elastic retainer ring 13;

the expansion claw 2 is a column with a sector-shaped cross section, and the spring ring is an open circular ring;

The camshaft 4 is divided into an upper part and a lower part, the upper half part is cylindrical and provided with a key slot, and the lower half part is of a cam structure and is used for assembling a wrench on the camshaft;

The body 5 is of a cylindrical structure and is used for placing a bearing, a cam shaft, a bearing and a gland, and the side wall of the body is provided with three square grooves for installing expansion claws;

The two ends of the wrench 7 are cylindrical, the middle part is a circular ring and is provided with a key slot, the wrench is connected with the cam shaft 4 by a key, and the retainer ring 8 is cylindrical with holes;

The gland 12 is of a circular ring structure; the circlip 13 is used for fixing the gland after the internal part of the annular groove of the body is placed; the elastic retainer ring for the bearing, the spanner rod, the screw, the key and the hole is used as a standard component and used for connecting and fixing a battlefield spanner.

Further, the expansion claw 2 is a column with a sector-shaped cross section, the material is T8, the heat treatment is HRC 48-52, and the circular arc roughness of the conical surface is Ra 0.8.

Further, the spring ring is of an open circular ring structure, the material is 65Mn, and the heat treatment is HRC 58-62.

Further, the camshaft material is T8, and the heat treatment is HRC 48-52.

Further, the material of the body 5 is T8, and the heat treatment is HRC 38-42.

Further, the spanner 7 is made of 45# steel, and is subjected to heat treatment of HRC 38-42.

Further, the gland 12 is made of 45# steel, and HRC 38-42 is heat treated.

Further, the method comprises the steps of,

During assembly, the bearing is coated with lubricating grease, and the bearing is flexible to rotate and cannot be blocked.

(3) The beneficial effects are that:

the utility model has simple structure, convenient and quick assembly and disassembly, high efficiency and greatly reduced labor intensity.

Drawings

FIG. 1 is a schematic diagram of a wrench

FIG. 2 is a schematic view of the expansion claw structure

FIG. 3 is a schematic view of a spring coil structure

FIG. 4 is a schematic view of a camshaft structure

FIG. 5 is a schematic diagram of the body structure

FIG. 6 is a schematic diagram of a wrench structure

FIG. 7 is a schematic view of a retainer ring structure

FIG. 8 is a schematic diagram of a gland structure

FIG. 9 is a schematic diagram of wrench use

Detailed Description

The structure of the wrench is schematically shown in fig. 1.

The utility model discloses a battlefield wrench for propaganda bullets, which has the structure shown in figure 1 and comprises a first bearing 1, a rising claw 2, a spring ring 3, a cam shaft 4, a body 5, a wrench rod 6, a wrench 7, a retainer ring 8, a screw 9, a key 10, a second bearing 11, a gland 12 and a hole elastic retainer ring 13;

As shown in fig. 2, the expansion claw 2 has a cylindrical structure with a sector-shaped cross section, the material is T8, the heat treatment is HRC 48-52, and the circular arc roughness of the conical surface is Ra 0.8.

As shown in FIG. 3, the spring ring 3 is of an open circular ring structure, and is made of 65Mn and heat-treated with HRC 58-62.

The upper half of the cam shaft 4 is cylindrical and provided with a key groove, the lower half is of a cam structure, the cam shaft material is T8, and the heat treatment is HRC 48-52.

The body 5 is in a cylindrical structure as shown in fig. 5, and the side wall is provided with three square grooves for installing the expansion claws. The material is T8, and the heat treatment is HRC 38-42.

The wrench 7 is shown in fig. 6, and has two ends in a cylindrical shape, a middle part in a circular ring with a key slot, and is connected with a cam shaft by a key, and is made of 45# steel, and heat treatment is carried out on HRC 38-42.

The retainer ring 8 is shown in fig. 7 and is in a cylindrical shape with holes, and is made of 45# steel

The gland 12 is shown in fig. 8 and is of a circular ring structure, and is made of 45# steel and heat treated with HRCs 38-42.

Bearing, spanner rod, screw, key, circlip for hole are standard components:

A schematic of the use of the wrench is shown in fig. 9.

During assembly, the bearing, the cam shaft, the bearing and the gland are sequentially arranged in the body, and then the elastic retainer ring is pressed into the annular groove of the body to fix the gland; the key is placed in a key groove of a cam shaft, then a spanner is assembled on the cam shaft, and after a retainer ring is pressed, the key is fixed by a screw. The expansion claw of the rotary wrench after assembly is flexible. During assembly, the bearing is coated with lubricating grease, and the bearing is flexible to rotate and cannot be blocked.

After the propaganda bullet is launched, when the bullet flies to the upper space of a preset target, the fuze acts on to ignite the propellant to generate high-temperature and high-pressure propellant gas, the high-temperature and high-pressure propellant gas is pressurized on the pushing plate surface and is transmitted to the bullet bottom through the supporting tile, and then the connecting threads of the bullet body and the bullet bottom are sheared, so that the propaganda material and other fillers are thrown out of the bullet chamber. The propaganda product is unwound by self rotation, scattered by means of aerodynamic force and falls on the ground to perform psychological fight on enemy. Because different conditions such as fight objects, fight opportunities and the like need different propaganda contents, the internal filling material cannot be pre-assembled like other ammunition, and if necessary, the internal filling material needs to be temporarily filled in a shooting array, and the utility model (attached drawing) can quickly spin the bottom of a bullet in the array to shoot.

The foregoing is a further detailed description of the utility model in connection with specific embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (8)

1. The battlefield wrench for propaganda bullets is characterized by comprising a first bearing (1), a rising claw (2), a spring ring (3), a cam shaft (4), a body (5), a wrench rod (6), a wrench (7), a retainer ring (8), a screw (9), a key (10), a second bearing (11), a gland (12) and a hole elastic retainer ring (13);

The expansion claw (2) is a column with a sector cross section, and the spring ring is an open circular ring;

The cam shaft (4) is divided into an upper part and a lower part, the upper half part is cylindrical and provided with a key groove, and the lower half part is of a cam structure and is used for assembling a wrench on the cam shaft;

The body (5) is of a cylindrical structure and is used for placing a first bearing, a cam shaft, a second bearing and a gland, and the side wall of the body is provided with three square grooves for installing expansion claws;

the two ends of the wrench (7) are cylindrical, the middle part is a circular ring and is provided with a key slot, the wrench is connected with the cam shaft (4) by keys, and the retainer ring (8) is cylindrical with holes;

the gland (12) is of a circular ring structure; the elastic retainer ring (13) for the hole is used for fixing the gland after the placement of the parts in the annular groove of the body is finished; the second bearing, the spanner rod, the screw, the key and the hole elastic retainer ring are used for connecting and fixing the battlefield spanner.

2. The battlefield wrench for propaganda bullets according to claim 1, characterized in that the expansion claw (2) is a column with a sector-shaped cross section, the material is T8, the heat treatment is HRC 48-52, and the circular arc roughness of the conical surface is Ra 0.8.

3. The battlefield wrench for propaganda bullets of claim 1, wherein the spring ring has an open circular ring structure, the material is 65Mn, and the heat treatment is HRC 58-62.

4. The battlefield wrench for propaganda bullets of claim 1, wherein the camshaft material is T8, heat treated HRC 48-52.

5. A field wrench for propaganda bullets according to claim 1, characterized in that the material of the body (5) is T8, heat-treated HRC 38-42.

6. A field wrench for propaganda bullets according to claim 1, characterized in that the wrench (7) is made of 45# steel, heat-treated HRC 38-42.

7. A field wrench for propaganda bullets according to claim 1, characterized in that the gland (12) is made of 45# steel, heat treated HRC 38-42.

8. The battlefield wrench for propaganda bullets of claim 1, wherein the bearing is greased during assembly and cannot be locked during rotation.