CN104681913A

CN104681913A - Mold for connecting tail end of rib plate of radial rib antenna with mast

Info

Publication number: CN104681913A
Application number: CN201510123588.4A
Authority: CN
Inventors: 谭惠丰; 林国昌; 卫剑征; 王长国; 赵树林; 苗常青; 刘宇艳; 谢志民
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2015-06-03
Anticipated expiration: 2033-11-29
Also published as: CN104681913B

Abstract

The invention discloses a mold for connecting a tail end of a rib plate of a radial rib antenna with a mast, belongs to the technical field of radial rib antennas, and solves the problems that the transceiving quality of antenna signals can be affected as multi-angle irregular wrinkles or even tearing can be generated, which is caused by the fact that the rib plate is unevenly stressed when being coiled, folded and unfolded as a metal part or a once-formed carbon fiber material is adopted to connect the tail end of the rib plate of the radial rib antenna and the mast, and a mold made of a once-formed carbon fiber material is large in size and high in manufacturing cost in the prior art. Aramid fiber cloth thickened grooves are respectively formed in opposite sides of two rib plate grooves of a mold plate; the shape of each rib plate groove is matched with that of the tail end of the rib plate; the depth of each aramid fiber cloth thickened groove is half of the sum of the thickness of the tail end of the rib plate and the thickness of two layers of aramid fiber cloth. The connection mold is used for connecting the tail end of the rib plate of the radial rib antenna with the mast.

Description

A kind of floor tail end of radial rib antenna and the connecting mold of mast

Technical field

The invention belongs to radial rib antenna technical field, be specifically related to a kind of floor tail end of radial rib antenna and the connecting mold of mast.

Background technology

Radial rib antenna has lightweight, bore is large, cost of transportation is low, the advantage that precision is high, but at present the floor tail end of radial rib antenna and the connection of mast adopt metalwork to connect or adopt one-shot forming carbon fibre material, floor curling fold with expansion process in easily produce the irregular scrimp of multi-angle because of unbalance stress and even tear phenomenon, thus affect the tranception-quality of aerial signal, and the mould of one-shot forming carbon fibre material is large, cost is high.

Summary of the invention

The connection that the object of the invention is the floor tail end and mast in order to solve current radial rib antenna adopts metalwork to connect or adopts one-shot forming carbon fibre material, in the curling folding and expansion process of floor, easily producing the irregular scrimp of multi-angle because of unbalance stress even tears phenomenon, thus affect the tranception-quality of aerial signal, and the mould of one-shot forming carbon fibre material is large, the problem that cost is high, provide a kind of floor tail end of radial rib antenna and the connecting mold of mast, its technical scheme is as follows:

The floor tail end of radial rib antenna and a connecting mold for mast, it comprises template, and template surface is provided with mast groove and floor groove; Described mast groove is arranged on the centre position of template surface, and described floor groove has two, and two floor grooves are relatively arranged on the both sides of mast groove, is respectively arranged with aramid fabric thickeies groove in the side that two floor grooves are relative; The cross section of described mast groove is semicircle, the radius that its radius equals mast adds the thickness of used aramid fabric, the shape of described floor groove and institute use the shape of floor tail end identical, its degree of depth by the half of use floor tail end thickness, the degree of depth that described aramid fabric thickeies groove by a false add of use floor tail end thickness two-layer the thickness of use aramid fabric.

Beneficial effect of the present invention is: connect without metalwork, do not affect the tranception-quality of aerial signal, low cost of manufacture, use mould is located, and connects precisely, and is connected firmly, lightweight, curling folding and can not produce scrimp even jackknifing because of distortion aramid fabric when launching, mould therefor volume is little, and cost is low.

accompanying drawing illustrates:

Fig. 1 is first step schematic diagram of the present invention;

Fig. 2 is second step schematic diagram of the present invention;

Fig. 3 is the 3rd step schematic diagram of the present invention;

Fig. 4 is the 4th step schematic diagram of the present invention;

Fig. 5 is mould schematic diagram of the present invention;

embodiment:

Referring to figs. 1 through Fig. 5, a kind of floor tail end of radial rib antenna and the method for attachment of mast, what it adopted is that aramid fabric 2 is bonding with floor tail end 4 finger-fork type by mast 3, and uses the pinpoint method of mould 1, and floor tail end 4 is accurately connected with mast 3.

The first step, to gluing after pasting one week by aramid fabric 2 around mast 3;

Second step, after glue is dry, aramid fabric 2 is trimmed to consistent with the shape of floor tail end 4 to sticky place, and be cut into the wide cloth 2-1 of some parts perpendicular to mast 3, in floor tail end 4 and every root cloth 2-1 corresponding section, several otch 4-1 is set, the width of otch 4-1 is 1/2nd of cloth 2-1 corresponding position width, the otch 4-1 being positioned at floor tail end 4 both sides aligns with the inner side edge of corresponding cloth 2-1 and arranges, other otch 4-1 is arranged with the justified of corresponding cloth 2-1, and otch 4-1 corresponding to the odd number cloth 2-1 otch 4-1 corresponding with even number cloth 2-1 is respectively set to a row, the distance at otch 4-1 distance floor tail end 4 edge that odd number (or even number) cloth 2-1 is corresponding is 1/2nd of cloth 2-1 length, the distance at otch 4-1 distance floor tail end 4 edge that even number (or odd number) cloth 2-1 is corresponding is 3/4ths of cloth 2-1 length,

3rd step, mast 3 is placed in the mast groove 1-1 of template 1, cloth 2-1 is divided into odd even two row, floor tail end 4 is inserted in odd even two to arrange between bar 2-1 and to be placed in the side floor groove 1-2 of template 1, by odd number (or even number) the cloth 2-1 on the upside of floor tail end 4 at the position opening corresponding with the otch 4-1 of floor tail end 4, be positioned at the cloth 2-1 of floor tail end 4 both sides in its outer openings, inner side 1/2nd width is stayed to connect, other cloth 2-1 is at its both-side opening, middle 1/2nd width are stayed to connect, and by bonding with floor tail end 4 below opening;

4th step, after glue is dry, the otch 4-1 that odd number (or even number) cloth 2-1 on the upside of floor tail end 4 is corresponding from floor tail end 4 passes, and floor tail end 4 is placed in the opposite side floor groove 1-2 of template 1, make the another side of floor tail end 4 upward, to turn back from the otch 4-1 of floor tail end 4 through odd number (or even number) the cloth 2-1 come and bonding with floor tail end 4, and Using such method is by bonding with floor tail end 4 for even number (or odd number) cloth 2-1.

The floor tail end of radial rib antenna and a connecting mold for mast, it comprises template 1, is provided with mast groove 1-1 and floor groove 1-2 on template 1 surface; Described mast groove 1-1 is arranged on the centre position on template 1 surface, described floor groove 1-2 has two, two floor groove 1-2 are relatively arranged on the both sides of mast groove 1-1, be respectively arranged with aramid fabric thicken groove 1-3 in the side that two floor groove 1-2 are relative; The cross section of described mast groove 1-1 is semicircle, the radius that its radius equals mast 3 adds the thickness of used aramid fabric 2, the shape of described floor groove 1-2 and institute use the shape of floor tail end 4 identical, its degree of depth by the half of use floor tail end 4 thickness, the degree of depth that described aramid fabric thickeies groove 1-3 by a false add of use floor tail end 4 thickness two-layer the thickness of use aramid fabric 2.

The principle of invention: aramid fabric 2 can not have an impact to aerial signal, and has good corrosion resistance, impact resistance is strong, the advantage that anti-dynamic load, fatigue behaviour are good; Locate handled easily by mould, and can precisely connect; The width of the otch 4-1 on floor tail end 4 is 1/2nd of the width of cloth 2-1, the otch 4-1 that the otch 4-1 that odd number cloth 2-1 is corresponding is corresponding with even number cloth 2-1 is respectively set to a row, the spacing of two row's otch 4-1 is greater than the width of otch 4-1, makes the intensity of floor tail end 4 affect little by otch 4-1.

Claims

1. the floor tail end of radial rib antenna and a connecting mold for mast, is characterized in that it comprises template (1), is provided with mast groove (1-1) and floor groove (1-2) on template (1) surface; Described mast groove (1-1) is arranged on the centre position on template (1) surface, described floor groove (1-2) has two, two floor grooves (1-2) are relatively arranged on the both sides of mast groove (1-1), be respectively arranged with aramid fabric thicken groove (1-3) in the side that two floor grooves (1-2) are relative; The cross section of described mast groove (1-1) is semicircle, the radius that its radius equals mast (3) adds the thickness of used aramid fabric (2), the shape of described floor groove (1-2) and institute use the tail end shape of floor (4) identical, its degree of depth by the half of use floor tail end (4) thickness, the degree of depth that described aramid fabric thickeies groove (1-3) by a false add of use floor tail end (4) thickness two-layer the thickness of use aramid fabric (2).