Seeker fairing connecting structure and assembly tool and method thereof

Abstract

The invention discloses a seeker fairing connecting structure and an assembly tool and method thereof. The connecting structure comprises a fairing, a shell and a pressing ring. The upper end of the pressing ring is pressed on the outer wall surface of the fairing, and the pressing ring meets the pneumatic shape of the seeker; the lower end of the pressing ring is in threaded connection with the shell; the gap between the pressing ring and the fairing and the gap between the pressing ring and the shell are coated with sealant, the connecting structure is easy and reliable to assemble, and the space utilization rate is high. The assembling tool and method are used for assembling the seeker fairing connecting structure, so that the assembling process is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of seeker heads, and in particular to a seeker head fairing connection structure and an assembly tool and method thereof. Background Art

[0002] As modern warfare requires the seeker to be increasingly miniaturized and have a larger tracking range, there is a contradiction in ensuring high reliability of connection in a smaller space. Figure 1 As shown, the current conventional seeker fairing and outer shell are connected by direct bonding. After a certain storage period, there is a risk that the sealant bonding strength will be reduced and the fairing may fall off. Summary of the invention

[0003] In view of this, the present invention provides a seeker fairing connection structure and an assembly tool and method thereof, which are simple and reliable to assemble and have high space utilization.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A seeker fairing connection structure comprises a fairing, a shell and a pressing ring;

[0006] The upper end of the pressing ring is pressed onto the outer wall of the fairing, and the pressing ring meets the aerodynamic shape of the seeker; the lower end of the pressing ring is threadedly connected to the outer shell; and sealant is applied between the pressing ring and the fairing and at the gap between the pressing ring and the outer shell.

[0007] Furthermore, the outer wall surface of the pressure ring is arc-shaped, which meets the aerodynamic shape of the seeker; the bottom surface of the pressure ring is a horizontal plane, perpendicular to the axial direction of the seeker; the inner diameter of the upper end of the inner wall surface of the pressure ring is smaller than the outer diameter of the lower end of the pressure ring, and the half section of the inner wall surface of the pressure ring is a slope for cooperating with the fairing, and the lower section of the inner wall surface of the pressure ring is perpendicular to the horizontal plane and is processed with threads for cooperating with the outer shell.

[0008] Furthermore, the outer wall surface of the pressure ring is arc-shaped, which meets the aerodynamic shape of the seeker; the bottom surface of the pressure ring is a horizontal plane, perpendicular to the axial direction of the seeker; the inner diameter of the upper end of the inner wall surface of the pressure ring is smaller than the outer diameter of the lower end of the pressure ring, and the half section of the inner wall surface of the pressure ring is a step surface for cooperating with the fairing, and the lower half section of the inner wall surface of the pressure ring is perpendicular to the horizontal plane and is processed with threads for cooperating with the outer shell.

[0009] An assembly tool for a seeker fairing connection structure, used for assembling the above-mentioned seeker fairing connection structure, the assembly tool comprising a wrench screw, a clamping ring, a handle and an adapter block;

[0010] Two assembly holes are reserved on the pressure ring for installing spanner screws; the clamping ring is fixed on the pressure ring through the spanner screws; the handle is fixed on the clamping ring; the lower surface of the adapter block is fixed, and the upper surface is used to fix the shell.

[0011] Furthermore, the shell is composed of a cylinder and a partial spherical structure, and the partial spherical structure and the fairing form a hemispherical structure; the upper surface of the adapter block is inclined, and the inclination angle is the same as the inclination angle of the fairing assembly.

[0012] Furthermore, the wrench screw is made of steel and the handle is made of aluminum.

[0013] Furthermore, the assembly tool also includes an airtight test plate, the shell is fixed on the airtight test plate, one side of the airtight test plate blocks the open end of the shell, and the other side of the airtight test plate is fixed on the adapter block.

[0014] A method for assembling a seeker fairing connection structure, using the above-mentioned assembly tool, the assembly method is as follows:

[0015] First, fix the shell on the adapter block, then place the fairing on the docking surface of the shell, apply sealant to the joints between the pressure ring, the fairing and the shell, and then press the upper end of the pressure ring onto the outer wall of the fairing; the retaining ring is fixed to the pressure ring by a wrench screw, and the handle on the retaining ring is rotated to fix the pressure ring and the shell thread.

[0016] Furthermore, the outer shell is fixed to the upper surface of the adapter block through an airtight test plate, and an airtightness test is performed after the seeker fairing connection structure is assembled.

[0017] Beneficial effects:

[0018] 1. The present invention has the characteristics of high reliability and high space utilization. On the one hand, the outer pressure ring is adopted, which is simple and reliable to assemble, and high reliability and high space utilization are achieved in a small space. On the other hand, the pressure ring and the outer shell are connected by threads, which can realize combined processing, making the transition between the pressure ring and the outer shell smoother and the connection reliability is also high.

[0019] 2. When the present invention is assembled, the upper surface inclination angle of the adapter block used is the same as the assembly inclination angle of the fairing, which is convenient for the assembly of the fairing.

[0020] 3. When the present invention is assembled, an airtight test plate is added to facilitate subsequent airtightness testing.

[0021] 4. The present invention uses a spanner screw and a clamping ring to achieve the connection between the pressure ring and the housing, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the traditional seeker fairing connection structure.

[0023] Figure 2 It is a schematic diagram of the connection structure and assembly tooling of the seeker fairing of the present invention.

[0024] Figure 3 It is a top view of the seeker fairing connection structure and assembly tooling of the present invention.

[0025] Figure 4 This is a cross-sectional view of the connection structure and assembly tooling of the seeker fairing of the present invention

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram of point Ⅰ in the middle.

[0027] Figure 6 It is a top sectional view of the seeker fairing connection structure and assembly tooling of the present invention.

[0028] Among them, 1-housing; 2-pressure ring; 3-fairing; 4-wrench screw; 5-clamp ring; 6-handle; 7-airtight test plate; 8-adapter block. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0030] The present invention provides a seeker fairing connection structure, such as Figure 2 to Figure 6 As shown, it includes a fairing 3, an outer shell 1 and a pressure ring 2.

[0031] The upper end of the pressing ring 2 is pressed onto the outer wall of the fairing 3, and the pressing ring 2 meets the aerodynamic shape of the seeker; the lower end of the pressing ring 2 is threadedly connected to the outer shell 1; sealant is applied between the pressing ring 2 and the fairing 3, and at the gap between the pressing ring 2 and the outer shell 1 to ensure air tightness.

[0032] Specifically, the outer wall of the pressure ring 2 is arc-shaped to meet the aerodynamic shape of the seeker; the bottom surface of the pressure ring 2 is a horizontal plane, perpendicular to the axis direction of the seeker; the inner diameter of the upper end of the inner wall of the pressure ring 2 is smaller than the outer diameter of the lower end of the pressure ring 2, and the upper half of the inner wall of the pressure ring 2 is an inclined surface for matching with the fairing 3; preferably, the upper half of the inner wall of the pressure ring 2 is segmented, the upper part is a vertical section, and the lower section is an inclined section, such as Figure 5 As shown; the lower half of the inner wall of the pressure ring 2 is perpendicular to the horizontal plane and is processed with threads for matching with the housing 1.

[0033] If the fairing 3 is thick enough, a step structure can also be processed, that is, the upper half of the inner wall surface of the pressure ring 2 is a step surface for matching with the fairing 3.

[0034] The present invention further provides a seeker fairing connection structure assembly tool for assembling the above-mentioned seeker fairing connection structure, and the assembly tool comprises a wrench screw 4, a clamping ring 5, a handle 6 and an adapter block 8.

[0035] Two assembly holes are reserved on the pressing ring 2 for installing the spanner screw 4, which is inserted and fixed to tighten the fairing 3; the clamping ring 5 is fixed on the pressing ring 2 through the spanner screw 4; the handle 6 is fixed on the clamping ring 5; the lower surface of the adapter block 8 is fixed, and the upper surface is used to fix the housing 1. The spanner screw 4 is made of steel, and the handle 6 is made of aluminum.

[0036] In this embodiment, the housing 1 is composed of a cylinder and a partial spherical structure, and the partial spherical structure and the fairing 3 form a hemispherical structure. Therefore, if the housing 1 is placed horizontally, the fairing 3 is in an inclined state. In order to facilitate the installation of the fairing 3, the upper surface of the adapter block 8 is set as an inclined surface, and the inclination angle is the same as the inclination angle of the fairing 3.

[0037] The assembly tool also includes an airtight test plate 7, the housing 1 is fixed on the airtight test plate 7, one side of the airtight test plate 7 blocks the open end of the housing 1, and the other side of the airtight test plate 7 is fixed on the adapter block 8. Specifically, the airtight test plate 7 is a cylinder as a whole, and an annular boss is provided on the end face of one end. The end face of the housing 1 contacts the inner side of the annular boss, and the other end of the airtight test plate 7 extends into the interior of the housing 1 and contacts the inner wall of the housing 1 in a sealed manner.

[0038] The present invention also provides a method for assembling a seeker fairing connection structure, using the above-mentioned assembly tool, and the assembly method is as follows:

[0039] First, the housing 1 is fixed on the upper surface of the adapter block 8 through the airtight test plate 7, and then the fairing 3 is placed on the docking surface of the housing 1. The sealant is applied to the joint between the pressing ring 2, the fairing 3 and the housing 1, and then the upper end of the pressing ring 2 is pressed onto the outer wall of the fairing 3; the clamping ring 5 is fixed to the pressing ring 2 through the wrench screw 4, and the handle 6 on the clamping ring 5 is rotated to make the pressing ring 2 and the housing 1 threadedly connected and fixed. After the guide head fairing connection structure is assembled, the airtightness test is carried out.

[0040] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seeker fairing connection structure, characterized in that: Including fairing, shell and pressure ring; The upper end of the pressing ring is pressed onto the outer wall of the fairing, and the pressing ring meets the aerodynamic shape of the seeker; the lower end of the pressing ring is threadedly connected to the outer shell; and sealant is applied between the pressing ring and the fairing and at the gap between the pressing ring and the outer shell.

2. The seeker fairing connection structure according to claim 1, characterized in that: The outer wall of the pressure ring is arc-shaped, which meets the aerodynamic shape of the guide head; the bottom surface of the pressure ring is a horizontal plane, perpendicular to the axial direction of the guide head; the inner diameter of the upper end of the inner wall of the pressure ring is smaller than the outer diameter of the lower end of the pressure ring, and the upper half of the inner wall of the pressure ring is an inclined surface for matching with the fairing, and the lower half of the inner wall of the pressure ring is perpendicular to the horizontal plane and is processed with threads for matching with the outer shell.

3. The seeker fairing connection structure according to claim 1, characterized in that: The outer wall of the pressure ring is arc-shaped, which meets the aerodynamic shape of the seeker; the bottom surface of the pressure ring is a horizontal plane, perpendicular to the axial direction of the seeker; the inner diameter of the upper end of the inner wall of the pressure ring is smaller than the outer diameter of the lower end of the pressure ring, and the upper half of the inner wall of the pressure ring is a step surface for matching with the fairing, and the lower half of the inner wall of the pressure ring is perpendicular to the horizontal plane and is processed with threads for matching with the outer shell.

4. A seeker fairing connection structure assembly tool, characterized in that: Used to assemble the seeker fairing connection structure according to claim 1, the assembly tool comprises a wrench screw, a clamp ring, a handle and an adapter block; Two assembly holes are reserved on the pressure ring for installing spanner screws; the clamping ring is fixed on the pressure ring through the spanner screws; the handle is fixed on the clamping ring; the lower surface of the adapter block is fixed, and the upper surface is used to fix the shell.

5. The assembly tool for the seeker fairing connection structure according to claim 4, characterized in that: The shell is composed of a cylinder and a partial spherical structure, and the partial spherical structure and the fairing form a hemispherical structure; the upper surface of the adapter block is inclined, and the inclination angle is the same as the inclination angle of the fairing assembly.

6. The assembly tool for the seeker fairing connection structure according to claim 4, characterized in that: The spanner screw is made of steel and the handle is made of aluminum.

7. The assembly tool for the seeker fairing connection structure according to any one of claims 4 to 6, characterized in that: The assembly tool also includes an airtight test plate, the shell is fixed on the airtight test plate, one side of the airtight test plate blocks the open end of the shell, and the other side of the airtight test plate is fixed on the adapter block.

8. A method for assembling a seeker fairing connection structure, characterized in that: Using the assembly tool as described in any one of claims 4 to 6, the assembly method is as follows: First, fix the shell on the adapter block, then place the fairing on the docking surface of the shell, apply sealant to the joints between the pressure ring, the fairing and the shell, and then press the upper end of the pressure ring onto the outer wall of the fairing; the retaining ring is fixed to the pressure ring by a wrench screw, and the handle on the retaining ring is rotated to fix the pressure ring and the shell thread.

9. The method for assembling the seeker fairing connection structure according to claim 8, characterized in that: The shell is fixed to the upper surface of the adapter block through an airtight test plate, and an airtightness test is performed after the seeker fairing connection structure is assembled.

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