CN209737374U - Sand blasting protection device for two-cabin shell - Google Patents

Abstract

The utility model relates to the technical field of sand blasting protection tools, in particular to a sand blasting protection device for a two-cabin shell; including corresponding the barrel of cup jointing in two cabin shells, install a plurality of location joint pieces that are used for and set up the sealed joint of installation window on two cabin shell walls on the barrel outer wall, the barrel upper end is equipped with the upper end cover, be equipped with the handle hole on the upper end cover, location joint piece with the connection can be dismantled to the barrel. The utility model discloses a two cabin sandblast protection device for casing, the yielding problem in window portion position when the sandblast of two cabin casings of effectual solution, install sandblast protection device in cabin internal portion before the sandblast to align the joint piece in location and cabin body window, go up the bolt, apply certain prestressing force, can effectually protect cabin body window edge and warp because of the too big production of pressure when the sandblast, be favorable to improving the qualification rate of product, improve production efficiency.

Description

Sand blasting protection device for two-cabin shell

Technical Field

The utility model relates to a sandblast protection frock technical field especially relates to a sandblast protection device for two cabin casings.

background

With the continuous development of the scientific technology field, particularly the daily change in the aspects of military weapons, aircrafts and missiles with large Mach numbers increasingly dominate the military field. The friction between the missile body and air can generate great heat in a high-speed flying state, and external heat such as inward conduction can damage components inside the missile body, influence the flying stability or cause crash, so that how to isolate heat conduction becomes one of key technologies of the missile. At present, the heat insulation mode of the mainstream is that a thermal protection material is sprayed outside an elastomer, the heat resistance and the mechanical strength of the thermal protection material are the most key indexes of the material, wherein the mechanical property comprises the adhesive strength of the thermal protection material and an elastomer base material, and the common means for improving the adhesive strength is to sand blast the surface of the elastomer base material so as to improve the contact area between the surface of the base material and the thermal protection material.

at present, a certain type of air-to-air missile made in China is a beyond visual range tactical missile and has the characteristics of hypersonic flight and the like. The multiple cabin sections are respectively processed in the production process, final assembly is carried out, the two-cabin shell is a cabin body of a certain section, a plurality of windows are arranged on cabin body base materials, components need to be installed during assembly, the matching tolerance of the components is small, the edges of the windows deform during sand blasting operation on the surfaces of the cabin bodies, the components inside the assembly cannot be installed, secondary processing is needed, production efficiency is reduced, and unqualified products are easy to appear.

Therefore, in order to solve the above problems, a new sandblast protection device for a two-compartment shell is required to be invented.

disclosure of Invention

The utility model aims to provide a: the utility model provides a two cabin shells are with sandblast protection device, solve two cabin shells and cause the problem of deformation at the window border position when the sandblast operation.

The utility model provides a following scheme:

The utility model provides a two cabin sandblast protection device for casing, includes to correspond the barrel that cup joints in two cabin casings, install a plurality of location joint pieces that are used for and set up the sealed joint of installation window on two cabin casing walls on the barrel outer wall, the barrel upper end is equipped with the upper end cover, be equipped with the handle hole on the upper end cover, location joint piece with the connection can be dismantled to the barrel.

Furthermore, a wear-resistant protective layer is arranged on the surface of the positioning clamping block, which faces the outside of the barrel body.

Furthermore, a sealing ring is arranged around the positioning clamping block.

Furthermore, a plurality of positioning clamping blocks are uniformly distributed at intervals along the circumference of the outer wall of the barrel.

Furthermore, a plurality of weight reducing openings are formed in the barrel body, and each weight reducing opening is located between two adjacent positioning clamping blocks.

Furthermore, the length extending direction of the positioning clamping block is the same as the axial direction of the cylinder body.

Furthermore, the hole wall of the operation hole correspondingly surrounds the outer wall of the upper end of the cylinder body.

Furthermore, the positioning clamping block and the barrel are fixed through bolts.

Further, the wear-resistant protective layer is made of any one of Mn13 high manganese steel, NM400 steel plate, Mn16 wear-resistant plate and NM500 steel plate.

Further, the sealing ring is a rubber sealing ring.

The utility model discloses the beneficial effect who produces:

1. The utility model discloses a sand blasting protection device for a two-cabin shell, which comprises a barrel body correspondingly sleeved in the two-cabin shell, wherein a plurality of positioning clamping blocks used for being in sealing clamping connection with an installation window arranged on the wall of the two-cabin shell are arranged on the outer wall of the barrel body, and the positioning clamping blocks are connected with the barrel body through bolts; the problem that the window part of the two-cabin shell is easy to deform during sand blasting can be effectively solved, the sand blasting protection device is arranged inside the cabin body before sand blasting, the positioning clamping block is aligned with the cabin body window, the bolt is tightened, certain prestress is applied, deformation of the edge of the cabin body window due to overlarge pressure intensity during sand blasting can be effectively prevented, the product qualification rate can be improved, and the production efficiency can be improved;

2. The wear-resistant protective layer is Mn13 high manganese steel, has excellent wear resistance, and under the impact action of a large load, the surface of the steel layer is processed and hardened to form a high wear-resistant surface layer, so that the problem that the protective layer is easy to lose in the process of multiple times of sand blasting can be effectively solved.

Drawings

Fig. 1 is a schematic structural view (front view) of a sand blast protection device for a two-compartment housing according to the present invention;

Fig. 2 is a schematic structural view of the sandblast protection apparatus for the second-tank shell of the present invention (a cross-sectional view of a-a in fig. 1);

fig. 3 is a schematic structural view (plan view) of the sand blast protection device for the two-compartment shell according to the present invention;

Fig. 4 is a schematic structural view (top view) of the sandblast protection device of the present invention sleeved in the two-compartment housing.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the utility model discloses a sand blasting protection device for two cabin casings's main view, sand blasting protection device for two cabin casings are including corresponding the barrel 1 of cup jointing in two cabin casings 11, install on the barrel outer wall a plurality of be used for with set up the location joint piece 2 of the sealed joint of installation window on two cabin casing walls, it is a plurality of location joint piece is followed barrel outer wall circumference is even interval and lays. The length extending direction of the positioning clamping block is the same as the axial direction of the cylinder body. And a wear-resistant protective layer 5 is arranged on the surface of the positioning clamping block, which faces the outside of the barrel body. The upper end of the cylinder body is provided with an upper end cover 3. And a sealing ring 6 is arranged around the positioning clamping block. The sealing ring enables the positioning clamping block and the barrel to achieve seamless connection. The sealing ring is a rubber sealing ring. The positioning clamping block is detachably connected with the barrel. Preferably, the positioning clamping block and the barrel are fixed through a bolt 7.

The barrel is provided with a plurality of weight reducing ports, and each weight reducing port is located between two adjacent positioning clamping blocks. The barrel is hollow, so that the weight of the sand blasting protection device is reduced, and the operation is convenient. The cylinder is selected from any one of aluminum alloy materials, stainless steel materials and titanium alloys.

As shown in fig. 2, fig. 2 is a sectional view of the sand blasting protection device for the two-compartment shell of the present invention; and the upper end cover is provided with an operation hole 4. The operation hole of upper end cover makes things convenient for the hand to pass the upper end cover and gets into inside the barrel, twists the bolt. The hole wall of the operation hole is correspondingly surrounded on the outer wall of the upper end of the cylinder body.

As shown in fig. 3, fig. 3 is a top view of the sand blast protection device for the two-compartment shell according to the present invention. The upper end of the cylinder body is provided with an upper end cover 3. The cartridge of this embodiment is provided with 4 lightening ports.

as shown in fig. 4, fig. 4 is a top view of the sandblast protection device of the present invention sleeved in the two-compartment housing. The protection device comprises a barrel body which is correspondingly sleeved in the two-cabin shell, a plurality of positioning clamping blocks which are used for being in sealing clamping connection with an installation window arranged on the wall of the two-cabin shell are installed on the outer wall of the barrel body, and the positioning clamping blocks are connected with the barrel body through bolts; the utility model discloses the yielding problem in window portion position when the sandblast of two cabin casings of effectual solution, install sandblast protection device in cabin internal portion before the sandblast to align location joint piece and cabin body window, go up the bolt, exert certain prestressing force, can effectually protect and prevent that cabin body window edge is out of shape because of the too big production of pressure when the sandblast, be favorable to improving the qualification rate of product, improve production efficiency. The pre-stress applied is different according to different materials.

The wear-resistant protective layer is made of any one of Mn13 high manganese steel, NM400 steel plate, Mn16 wear-resistant plate and NM500 steel plate. In the sandblasting protection device for the two-compartment shell in the embodiment, the wear-resistant protection layer is made of Mn13 high-manganese steel, so that the wear-resistant protection layer has excellent wear resistance, the surface of the steel layer is subjected to work hardening under the impact action of a large load to form a high-wear-resistant surface layer, and the problem that the protection layer is easy to lose in a multi-time sandblasting process can be effectively solved.

In the sand blasting protection device for the second cabin shell in the embodiment, the bolt can apply certain prestress to the window part of the cabin body during installation, and can correct deformation possibly generated during sand blasting; the positioning clamping blocks can be correspondingly adjusted according to different cabin bodies and different parts to be protected so as to adapt to use under various working conditions.

The sandblasting protection device for the second-cabin shell in the embodiment is used in the following process: firstly, before the cabin section is subjected to sand blasting, cleaning and degreasing are carried out on the surface of the cabin section and the whole sand blasting protection device by using corresponding solvents according to process procedures, and then the non-sand blasting surface is subjected to multilayer protection by using a cloth adhesive tape so as to prevent damage caused by sand blasting. After cleaning, the sand blasting protection device is arranged in the cabin section, so that the positioning blocks are aligned to four windows needing to be protected in the cabin section, and the positioning blocks are well matched with the edges of the windows without leaks and overlapping; the pressure of 0.4Mpa-0.6Mpa is used for carrying out sand blasting on the surface base material of the cabin section, the traveling speed of a sand gun is (3-6) m/min, the distance between the sand gun and the surface of the base material is (150-; and removing the adhesive tape protection on the surface of the cabin section substrate after the sand blasting is finished, unscrewing the fastening screw to enable the positioning block to withdraw from the window, and taking down the protection device to finish the sand blasting.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a two cabin sandblast protection device for casing which characterized in that: including corresponding the barrel of cup jointing in two cabin shells, install a plurality of location joint pieces that are used for and set up the sealed joint of installation window on two cabin shell walls on the barrel outer wall, the barrel upper end is equipped with the upper end cover, be equipped with the handle hole on the upper end cover, location joint piece with the connection can be dismantled to the barrel.

2. The blast protection device for a binary hull according to claim 1, wherein: and the surface of the positioning clamping block, which faces the outside of the barrel body, is provided with a wear-resistant protective layer.

3. The blast protection device for a binary hull according to claim 2, wherein: and a sealing ring is arranged around the positioning clamping block.

4. The blast protection device for a binary hull according to claim 1, wherein: the positioning clamping blocks are uniformly distributed at intervals along the circumference of the outer wall of the barrel.

5. The blast protection device for a binary hull according to claim 4, wherein: the barrel is provided with a plurality of weight reducing ports, and each weight reducing port is located between two adjacent positioning clamping blocks.

6. The blast protection device for a binary hull according to claim 5, wherein: the length extending direction of the positioning clamping block is the same as the axial direction of the cylinder body.

7. The blast protection device for a binary hull according to claim 6, wherein: the hole wall of the operation hole is correspondingly surrounded on the outer wall of the upper end of the cylinder body.

8. The blast protection device for a binary hull according to claim 1, wherein: the positioning clamping block and the barrel are fixed through a bolt.

9. The blast protection device for a binary hull according to claim 2, wherein: the wear-resistant protective layer is made of any one of Mn13 high manganese steel, NM400 steel plate, Mn16 wear-resistant plate and NM500 steel plate.

10. The blast protection device for a binary hull according to claim 3, wherein: the sealing ring is a rubber sealing ring.