CN218363332U - Auxiliary part for drilling at threaded connection part of spray pipe - Google Patents

Abstract

The utility model discloses an auxiliary member for drilling at the threaded connection part of a spray pipe, which consists of an auxiliary member body and a buffer layer; the auxiliary part body is a cylindrical part with an opening at the upper end, a drill bit through hole is formed in the center of an end plate at the lower end of the auxiliary part body, and external threads are machined on the outer wall of the auxiliary part body; the buffer layer is formed by processing a non-metal material, and the buffer layer is bonded on the outer side surface of the end plate at the lower end of the auxiliary piece body. The drilling auxiliary part of the utility model can relatively fix the positions of the spray pipe and the stabilizer, and the scraps generated by drilling can be thoroughly discharged on the basis; the screw is easy to align in screwing, accidental falling is avoided, the structure is simple, the operation is convenient, and the screw has important popularization and application values.

Description

Auxiliary part for drilling at threaded connection part of spray pipe

Technical Field

The utility model relates to a be used for spray tube threaded connection department drilling auxiliary member belongs to bullet tail assembly technical field.

Background

The aircraft stabilizer is wrapped at the periphery of the solid rocket engine jet pipe and is conventionally called as a missile tail. The spray pipes are in threaded connection and generally cannot be automatically loosened, but can gradually loosen under vibration or impact load or when the temperature change is large, so that the spray pipes used for the tail wing rotating type missile tail are required to take anti-loosening measures. The radial screw is adopted to directly limit the relative rotation of the screw thread, which is one of the commonly used methods, sometimes the anti-loosening of the spray pipe can be completed in advance, but in some cases, the anti-loosening treatment needs to be carried out on the spray pipe at the final stage of the tail assembly of the bullet, and at the moment, the drilling and the screwing of the screw need to be completed through a prefabricated window of the supporting cylinder of the stabilizer. During drilling, impurities such as scrap iron and the like are easy to remain in a narrow cavity or pollute a bearing, so that a precision part is damaged; when the screw is screwed, the operation is careless, and the tiny screw is easy to fall into the cavity, so that the tiny screw is difficult to remove. In view of the above, a suitable method or an auxiliary member is required to meet the assembly requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving traditional method drilling and when the screw is rotatory, iron fillings are difficult to be cleared up or the clearance is unclean, and iron fillings, screw drop in the cavity between spray tube and stabilizer or get into between the bearing inner race, lead to the rotatory problem that hidden danger appears of stabilizer, provide one kind and be used for spray tube threaded connection department drilling auxiliary member.

The utility model aims at realizing through the following technical scheme:

the utility model relates to an auxiliary member for drilling at the threaded connection part of a spray pipe, which consists of an auxiliary member body and a buffer layer;

the auxiliary part body is a cylindrical part with an opening at the upper end, a drill bit through hole is formed in the center of an end plate at the lower end of the auxiliary part body, and external threads are machined on the outer wall of the auxiliary part body;

the buffer layer is formed by processing a non-metal material, and the buffer layer is bonded on the outer side surface of the end plate at the lower end of the auxiliary piece body.

For convenience in installation of the auxiliary piece, the outer wall of the upper end of the auxiliary piece body is of a hexagonal structure.

Working process

The stabilizer support cylinder is prefabricated with a threaded hole for drilling operation, and the internal thread of the threaded hole is matched with the external thread of the auxiliary piece body. After the jet pipe and the stabilizer are assembled, screwing the auxiliary part thread into a threaded hole on the stabilizer support cylinder, and enabling the lower end of the auxiliary part body to be tightly attached to the jet pipe thread butt joint part; then, a drill bit penetrates through the inner cavity of the auxiliary part body, holes are drilled at the threaded butt joint of the spray pipe, and scrap iron is cleaned; then, a screw penetrates through the inner cavity of the auxiliary part body and is in threaded connection with the threaded joint of the spray pipe in the newly drilled threaded hole; and finally, detaching the auxiliary piece, and screwing the sealing plug into the threaded hole on the stabilizer support cylinder to seal the position.

Advantageous effects

The drilling auxiliary part of the utility model can relatively fix the positions of the spray pipe and the stabilizer, and the scraps generated by drilling can be thoroughly discharged on the basis; the screw is easy to align in screwing, the accidental falling is avoided, the structure is simple, the operation is convenient, and the screw has important popularization and application values.

Drawings

FIG. 1 is a schematic structural view of the drilling aid of the present invention;

in the figure, 1-the body of the auxiliary element, 2-the damping layer, 3-the nozzle, 4-the stabilizer support cylinder.

Detailed Description

The contents of the present invention will be further described with reference to the accompanying drawings and examples.

Examples

As shown in figure 1, the auxiliary member for drilling the threaded connection part of the spray pipe of the utility model comprises an auxiliary member body 1 and a buffer layer 2;

the auxiliary part body 1 is a cylindrical part with an opening at the upper end, a drill bit through hole is formed in the center of an end plate at the lower end of the auxiliary part body 1, and external threads are machined on the outer wall of the auxiliary part body 1;

the buffer layer 2 is formed by processing a non-metal material, and the buffer layer 2 is bonded on the outer side surface of the end plate at the lower end of the auxiliary piece body 1.

For convenience in installation of the auxiliary part, the outer wall of the upper end of the auxiliary part body 1 is of a hexagonal structure.

Working process

The stabilizer support barrel 4 is prefabricated with a threaded hole for drilling operation, and the internal thread of the threaded hole is matched with the external thread of the auxiliary part body 1. After the spray pipe 3 and the stabilizer are assembled, screwing the auxiliary part into a threaded hole on the stabilizer support cylinder 4 through threads, and enabling the lower end of the auxiliary part body 1 to be tightly attached to the threaded butt joint part of the spray pipe 3; then, a drill bit is adopted to penetrate through the inner cavity of the auxiliary part body 1, drilling is carried out at the threaded butt joint of the spray pipe 3, and scrap iron is cleaned; then, a screw penetrates through the inner cavity of the auxiliary part body 1 and is in threaded connection with the threaded butt joint of the spray pipe 3 in the newly drilled threaded hole; and finally, the auxiliary piece is detached, and the threaded hole in the stabilizer support cylinder 4 is screwed into the sealing plug to seal the position.

Claims (2)

1. A drilling auxiliary member for a threaded connection part of a spray pipe is characterized in that: the auxiliary part consists of an auxiliary part body and a buffer layer;

the auxiliary part body is a cylindrical part with an opening at the upper end, a drill bit through hole is formed in the center of an end plate at the lower end of the auxiliary part body, and external threads are machined on the outer wall of the auxiliary part body;

the buffer layer is formed by processing a non-metal material, and the buffer layer is bonded on the outer side surface of the end plate at the lower end of the auxiliary piece body.

2. A drilling aid for a threaded connection of a nozzle as defined in claim 1, wherein: the outer wall of the upper end of the auxiliary piece body is of a hexagonal structure.

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