A four-pole armature

A technology of armature and pole electricity, which is applied in the field of four-pole armature, can solve problems such as wear, ablation, and influence on the reliability of electromagnetic emission, and achieve lower processing accuracy requirements, improved contact area and contact efficiency, and pressure distribution on the contact surface uniform effect

Inactive Publication Date: 2021-04-13
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of electromagnetic emission, the surface where the armature is in contact with the track will be ablated and worn due to the physical effects of high pressure, high temperature, and high speed, which will cause the armature to separate from the track and affect the reliability of electromagnetic emission.

Method used

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  • A four-pole armature
  • A four-pole armature
  • A four-pole armature

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, the armature of this embodiment includes an armature body 1 and an armature cantilever 2 connected to the armature body 1 . The armature body 1 is an octagonal block, and a through hole (not labeled) is arranged in the center of the armature body 1 . The armature cantilever 2 is a flexible arm, and the four armature cantilever 2 are respectively connected to two opposite sides of the armature body 1. The armature cantilever 2 moves from the front end of the armature body 1 along the extending backwards in a parallel direction. For ease of description, the end of the armature cantilever 2 connected to the armature body 1 is defined as the head, then the free end of the armature cantilever 2 is the tail, and the head of the armature cantilever 2 is connected to the front end of the armature body 1. flush. The armature cantilever 2 has a contact surface s that is in sliding contact with the track in the...

Embodiment 2

[0049] Figure 8 , Figure 9 , Figure 10 and Figure 11 It is a schematic structural diagram of the armature cantilever according to Embodiment 2 of the present invention. The difference between this embodiment and Embodiment 1 is: the contact surface s where the armature cantilever 2 contacts the track is a curved surface, that is, the outline of the contact surface s is curved, and the front end point of the curve is between the axis of the armature body 1. The difference between the distance between the curve and the distance between the end point of the curve and the axis of the armature body 1 is the interference amount t of the armature cantilever r (the contact surface is an inclined plane in embodiment 1, then the profile of the contact surface is linear, and the amount of interference t r is the difference between the distance between the front end point of the straight line and the axis of the armature body 1 and the distance between the end point of the straigh...

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Abstract

A four-pole armature, comprising: an armature body, the armature body is an octagonal block whose cross-sectional shape is centrally symmetrical; an armature cantilever connected to the armature body, and the armature cantilever is connected to four On two opposite sides, the length of the side is the same as the width of the armature cantilever. The armature cantilever is a flexible arm. The armature cantilever extends backward from the armature body in a direction parallel to the moving direction of the armature. The armature The tail of the cantilever is farther from the axis of the armature body than the head of the armature cantilever; the armature cantilever has an interference fit with the rail in the electromagnetic launcher. In the present invention, by setting the armature cantilever extending outward from the armature body, the flexible armature cantilever and the track are in interference fit, so that sufficient contact area and contact pressure between the armature and the track can be obtained when the armature is installed. It solves the problem that the contact surface between the armature and the track is separated due to wear, ablation and other phenomena during the electromagnetic launch process, and ensures the stability of the electromagnetic launch.

Description

technical field [0001] The invention belongs to the technical field of ground-to-air missile electromagnetic ejection, in particular to a quadrupole armature used for a quadrupole electromagnetic launcher. Background technique [0002] Electromagnetic launch is a new-concept military technology that breaks through traditional missile and artillery launch principles. It is currently a key technology being vigorously developed by all military powers in the world. Applying electromagnetic launch technology to surface-to-air missile weapon systems can lay a theoretical foundation for the unification of active and under-research air defense missile catapults, the development of a general launch platform, and the construction of a family of air defense and anti-missile equipment, so as to maximize the use of various combat effectiveness of missiles. [0003] The current electromagnetic launcher mainly includes a track and an armature. The armature is in contact with the track and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41B6/00
Inventor 刘少伟苗海玉关娇时建明陆心平边友
Owner AIR FORCE UNIV PLA
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