Paper packaging barrel for columnar propellant powder

Abstract

The utility model discloses a paper packaging barrel for columnar propellant powder. The paper packaging barrel comprises an inner paper barrel, an outer paper barrel, a metal end cover and a supporting ring, wherein the outer paper barrel is connected to the outer side of the inner paper barrel in a sleeving mode, the metal end cover is fixed to the end of the outer paper barrel, and the supporting ring is fixed to the inner wall of the middle of the inner paper barrel. The paper outer barrel is of a two-section type split structure formed by radially cutting a barrel-shaped combined piece with two open ends; columnar propellant powder is installed in an inner cavity of the paper inner barrel and located in the radial direction through the supporting ring, and the edge of the metal end cover is embedded and meshed at the outer end of the paper outer barrel assembly through the edge rolling technology. The two branch pieces of the paper outer barrel are respectively sleeved inwards from the two ends of the paper inner barrel and are butted to form a barrel-shaped combined piece; buffering pads are arranged between the inner side plate faces of the metal end covers and the end faces of the two ends of the columnar propellant powder. The paper packaging barrel meets the requirements for storage and transportation of columnar propellant powder.

Description

Technical Field

[0001] The utility model relates to a paper packaging tube for columnar propellant, belonging to the technical field of propellant storage and transportation. Background Art

[0002] After mass production, propellant needs to be packaged to meet the requirements of storage and transportation. The requirements for the packaging structure of a columnar propellant product are:

[0003] 1) It has sufficient strength to withstand possible external forces such as squeezing, collision, and falling during normal loading and unloading, transportation, storage, and carrying by troops, ensuring that the ammunition will not be deformed or damaged;

[0004] 2) It has good moisture resistance, corrosion resistance and insect resistance, and the ammunition will not deteriorate due to changes in the environment and climate during its service life;

[0005] 3) It is convenient for military service, easy to open, and can be sealed again after activation;

[0006] 4) The packaging structure is reasonable, the production cost is low, and the packaging minimizes environmental pollution. Utility Model Content

[0007] The utility model aims to provide a paper packaging tube for columnar propellant in order to solve the storage and transportation requirements of large quantities of columnar propellant.

[0008] The purpose of this utility model is achieved through the following technical solutions:

[0009] The utility model discloses a paper packaging tube for columnar propellant, comprising a paper inner tube, a paper outer tube sleeved on the outside of the paper inner tube, a metal end cap fixed on the end of the paper outer tube, and a support ring fixed on the inner wall of the middle part of the paper inner tube;

[0010] The paper inner tube is a cylindrical member with two ends opened, the inner diameter of the paper inner tube is larger than the diameter of the columnar propellant, and the length of the paper inner tube matches the length of the columnar propellant;

[0011] The paper outer cylinder is a two-section structure formed by radially cutting a cylindrical component with openings at both ends, the inner diameter of the paper outer cylinder component matches the outer diameter of the paper inner cylinder, and the length of the paper outer cylinder component is greater than the length of the paper inner cylinder;

[0012] The inner diameter of the support ring matches the diameter of the columnar propellant;

[0013] The columnar propellant is installed in the inner cavity of the paper inner cylinder, and the columnar propellant is radially positioned by the support ring. The edge of the metal end cover is embedded and bitten into the outer end of the paper outer cylinder assembly through a rolling process. The two parts of the paper outer cylinder are respectively inserted inward from the two ends of the paper inner cylinder and connected to form a cylindrical assembly; a buffer pad is arranged between the inner side plate surface of the metal end cover and the end faces of the columnar propellant.

[0014] The paper inner tube and the paper outer tube are both made of bobbin paper through a spiral rolling process.

[0015] The outer wall of the paper outer cylinder-shaped assembly is coated with a waterproof coating.

[0016] The butt joint ends of the two sub-pieces of the paper outer tube are processed with stop structures that match each other.

[0017] The outer surface of the metal end cover is coated with a corrosion-resistant coating.

[0018] An adjustment pad for adjusting the axial gap is also arranged between the buffer pad and the columnar propellant.

[0019] The buffer pad and the adjusting pad are both made of wood pads.

[0020] Beneficial Effects

[0021] The paper packaging tube of the utility model has a simple structure and low packaging cost. It has a good protective effect on radioactive charges after compression strength tests, tensile strength tests, water immersion tests and drop tests, and can maintain a stable state in salt spray, rain and immersion environments, meeting the storage and transportation requirements of columnar propellants. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the paper packaging tube of the utility model;

[0023] In the figure, 1-metal end cover, 2-buffer pad, 3-adjustment pad, 4-paper outer cylinder, 5-support ring, 6-paper inner cylinder. DETAILED DESCRIPTION

[0024] The content of the utility model is further described below in conjunction with the drawings and embodiments.

[0025] Example

[0026] like Figure 1 As shown, a paper packaging tube for a columnar propellant of the utility model comprises a paper inner tube 6, a paper outer tube 4 sleeved on the outside of the paper inner tube 6, a metal end cap 1 fixed to the end of the paper outer tube 4, and a support ring 5 fixed to the inner wall of the middle part of the paper inner tube 6;

[0027] The paper inner tube 6 is a cylindrical member with openings at both ends. The inner diameter of the paper inner tube 6 is larger than the diameter of the columnar propellant. The length of the paper inner tube 6 matches the length of the columnar propellant.

[0028] The paper outer cylinder 4 is a two-section structure formed by radially cutting a cylindrical part with openings at both ends. The inner diameter of the cylindrical part of the paper outer cylinder 4 matches the outer diameter of the paper inner cylinder 6. The length of the cylindrical part of the paper outer cylinder 4 is greater than the length of the paper inner cylinder 6.

[0029] The inner diameter of the support ring 5 matches the diameter of the columnar propellant;

[0030] The columnar propellant is installed in the inner cavity of the paper inner tube 6, and the columnar propellant is radially positioned by the support ring 5. The edge of the metal end cover 1 is embedded and bitten into the outer end of the paper outer tube 4 assembly through a rolling process. The two sub-components of the paper outer tube 4 are respectively inserted inward from the two ends of the paper inner tube 6 and connected to form a cylindrical assembly; a buffer pad is arranged between the inner side plate surface of the metal end cover 1 and the end faces of the columnar propellant.

[0031] The paper inner tube 6 and the paper outer tube 4 are both made of bobbin paper through a spiral rolling process.

[0032] The outer wall of the paper outer cylinder 4 cylindrical assembly is coated with a waterproof coating.

[0033] The butt joint ends of the two parts of the paper outer tube 4 are processed with stop structures that match each other.

[0034] The outer surface of the metal end cover 1 is coated with a corrosion-resistant coating.

[0035] An adjustment pad 3 for adjusting the axial gap is also provided between the buffer pad 2 and the columnar propellant.

[0036] The buffer pad 2 and the adjustment pad 3 are both made of wood pads.

Claims

1. A paper packaging tube for columnar propellant, characterized in that: It includes a paper inner tube, a paper outer tube sleeved on the outside of the paper inner tube, a metal end cap fixed to the end of the paper outer tube, and a support ring fixed to the inner wall of the middle part of the paper inner tube; The paper inner tube is a cylindrical member with two ends opened, the inner diameter of the paper inner tube is larger than the diameter of the columnar propellant, and the length of the paper inner tube matches the length of the columnar propellant; The paper outer cylinder is a two-section structure formed by radially cutting a cylindrical component with openings at both ends, the inner diameter of the paper outer cylinder component matches the outer diameter of the paper inner cylinder, and the length of the paper outer cylinder component is greater than the length of the paper inner cylinder; The inner diameter of the support ring matches the diameter of the columnar propellant; The columnar propellant is installed in the inner cavity of the paper inner cylinder, and the columnar propellant is radially positioned by the support ring. The edge of the metal end cover is embedded and bitten into the outer end of the paper outer cylinder assembly through a rolling process. The two parts of the paper outer cylinder are respectively inserted inward from the two ends of the paper inner cylinder and connected to form a cylindrical assembly; a buffer pad is arranged between the inner side plate surface of the metal end cover and the end faces of the columnar propellant.

2. The paper packaging tube according to claim 1, characterized in that: The butt joint ends of the two sub-pieces of the paper outer tube are processed with stop structures that match each other.

3. The paper packaging tube according to claim 1, characterized in that: An adjustment pad for adjusting the axial gap is also arranged between the buffer pad and the columnar propellant.

4. The paper packaging tube according to any one of claims 1 to 3, characterized in that: The paper inner tube and the paper outer tube are both made of bobbin paper through a spiral rolling process.

5. The paper packaging tube according to any one of claims 1 to 3, characterized in that: The outer wall of the paper outer cylinder-shaped assembly is coated with a waterproof coating.

6. The paper packaging tube according to any one of claims 1 to 3, characterized in that: The outer surface of the metal end cover is coated with a corrosion-resistant coating.

7. The paper packaging tube according to any one of claims 1 to 3, characterized in that: The buffer pad and the adjusting pad are both made of wood pads.

Images