CN104990466A - Flexible electric field stretching rod unfolding device of sounding rocket - Google Patents
Flexible electric field stretching rod unfolding device of sounding rocket Download PDFInfo
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- CN104990466A CN104990466A CN201510432212.1A CN201510432212A CN104990466A CN 104990466 A CN104990466 A CN 104990466A CN 201510432212 A CN201510432212 A CN 201510432212A CN 104990466 A CN104990466 A CN 104990466A
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Abstract
The invention discloses a rocket-borne flexible folding type stretching rod unfolding device. The device comprises an electric field stretching rod part and a clamping and releasing unit for clamping and releasing the electric field stretching rod part; the electric field stretching rod part is a flexible carbon fiber folding stretching rod, and the clamping and releasing unit comprises a left clamping plate, a right clamping plate, a left support, a right support, a fuse protector, a fish wire, a left limiting check block, a right limiting check block, an upper base, a lower base and a middle cylinder connecting support. The upper base is connected with the lower base through a base rotating shaft, and the left support and the right support are fixed to the lower base in parallel; the lower end of the left clamping plate is connected with the upper end of the left support through a clamping plate rotating shaft, and the lower end of the right clamping plate is connected with the upper end of the right support through a clamping plate rotating shaft; and a plurality of arc-shaped bosses tightly attached to the folded electric field stretching rod part are arranged on the inner surfaces, in contact with the electric field stretching rod part and an electric field probe, of the left clamping plate and the right clamping plate, so that the left clamping plate and the right clamping plate are in tight contact with a folded electric field stretching rod when being in the vertical state at the same time.
Description
Technical field
The present invention relates to sounding rocket electric field boom field, a kind of flexible electric field boom expanding unit of specific design.
Background technology
In the loading device of sounding rocket, comprise the both arms probe-type electric field instrument of detection electric field.This detecting devices requires that its probe stretches out the pneumatic outer surface certain distance of rocket, with the impact avoiding rocket body remanent magnetism and air-flow to pay surface layer.The boom of two detection electric fields is arranged on the faying face of rocket arrow and rocket body.During transmitting, electric field boom draws in pod.After arriving predetermined altitude, rocket head body is separated, and electric field boom launches.Electric field boom and both arms probe-type electric field instrument complete the detection of electric field in space environment vertical sounding test mission jointly.
In the sounding rocket at home and abroad launched, common electric field boom version has folding rod-type boom, telescopic boom, spring spool formula boom etc., and dissimilar have certain requirement to environment for use.Due to the demand of sounding rocket payload detection, sounding rocket has spinning stability and three-axis stabilization two kinds of flight attitudes.For the sounding rocket of spinning stability, boom can not be with expansion drive unit, and the centrifugal force utilizing rocket spin to produce launches, and the meridian engineered sounding rocket boom succeeded in sending up as domestic adopts telescopic boom version exactly.But for three-axis stabilization sounding rocket, the expansion of boom must launch by expansion driving mechanism on one's own account.Because the sounding rocket flight time is very short, only have the working time of a few minutes, require boom development mechanism can unlock rapidly at specified altitude and launch locking, to ensure the search coverage of popping one's head in.Therefore a kind of boom expanding units that can meet these requirements how are provided to be technical problems urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to, for overcoming the problems referred to above, the invention provides a kind of arrow and carrying flexible folding boom expanding unit.
To achieve these goals, the invention provides a kind of arrow and carry flexible folding boom expanding unit, described device comprises electric field boom rod member 9 and the clamping releasing unit for clamping release electric field boom rod member;
Described electric field boom rod member is that flexible carbon fiber folds boom;
Described clamping releasing unit comprises: left clamping plate 5, right clamping plate 6, left socle 3, right support 4, fuse 15, fishing line 16, left limit block 11, right limit block 12, upper bed-plate 2, lower bottom base 1 and middle cylinder connection bracket 10;
Wherein, upper bed-plate 2 is connected with lower bottom base 1 by base shaft, and what left socle 3 and right support 4 were parallel to each other is fixed on lower bottom base and the space formed between left socle 3 and right support 4 for holding the electric field boom rod member of gathering;
The lower end of described left clamping plate 5 is connected with the upper end of left socle 3 by clamping plate rotating shaft, the lower end of right clamping plate 6 is connected with the upper end of right support 4 by clamping plate rotating shaft, and the inner surface that contacts with electric field probe of left clamping plate 5 and right clamping plate 6 and electric field boom rod member is arranged the arc boss that some electric pole boom rod members with drawing in fit tightly, and then when left clamping plate 5 and right clamping plate 6 are positioned at vertical state simultaneously and the electric field boom close contact of gathering; Left socle 3 and right support 4 by middle cylinder connection bracket 10 and rocket electric field boom install instruments coil in cylinder be connected;
Described fuse 15 is fixed on the top of left clamping plate 5 outer surface, left clamping plate 5 and right clamping plate 6 are fastened and then are made left clamping plate 5 and right clamping plate 6 can keep vertical state by fishing line 16 and then make electric field boom rod member be in rounding state, and fishing line 16 one end contacts with fuse 15; When fuse 15 fuses fishing line 16, left clamping plate 5 and right clamping plate 6 outwards rotate 90 degree under the effect of clamping plate torsion spring 7, and then the electric field boom rod member that release is drawn in;
Described lower bottom base 1 is fixed on the dashboard in Separation cabin.
Optionally, above-mentioned left clamping plate 5 and right clamping plate 6 are connected with the upper end of left socle 3 with right support 4 respectively respectively by the clamping plate rotating shaft 18 of lower end and clamping plate torsion spring 7.
Optionally, above-mentioned electric field boom rod member 9 is the tubular type carbon fiber boom of the hollow that one folds through several times; And burst arranges a perforate; Described electric field boom rod member 9 one end is fixed on upper bed-plate 2 by square flange; The other end of electric field boom rod member is connected with electric field probe base by circular flange; The cable of electric field probe and connector pass the tubular type carbon fiber boom rod member of hollow.
Optionally, above-mentioned clamping release mechanism also comprises: left limit block 11 with right limit block 12; Described left limit block 11 lay respectively at the bottom of left socle 3 and right support 4 with right limit block 12; Described left limit block 11 and right limit block 12 move downwards and backward for the carbon fiber boom rod member limiting rounding state; And the one end in the one end in close lower shoe 1 center of circle of left limit block 11 and close lower shoe 1 center of circle of right limit block 12 is separately fixed on the surface of left socle 3 and right support 4.
Optionally, above-mentioned left socle 3 and right support 4 agent structure are similar to, and the top of left socle 3 and right support 4 supports left clamping plate 5 and right clamping plate 6 respectively, and the semi-circular flange by bottom and the lower bottom base 1 of left socle 3 and right support 4 are fixedly linked.
Optionally, above-mentioned left clamping plate 5 and right clamping plate 6 are as " L " shape structure, and are somebody's turn to do the vertical arm upper end stationary electric field probe 19 of " L " shape structure, and the top of being simultaneously somebody's turn to do the vertical arm of " L " shape structure arranges several coiling journal stirrups, for being wound around fishing line; The transverse arm that " L " shape structure comprises can fix the electric field boom rod member of gathering, and an aperture is offered on the transverse arm top that " L " shape structure comprises, this aperture be positioned at " projection " that electric field boom rod member sets and cooperatively interact and then move upward spacing to electric field boom rod member rounding state.
Optionally, one end of a fishing line 16 is fixed on a journal stirrup below fuse, and this root fishing line passes the coiling journal stirrup on fuse 15, left clamping plate 5 and right clamping plate 6 successively again and binds.
Optionally, above-mentioned lower bottom base 1 is fixed on the dashboard in Separation cabin, and lower bottom base 1 is a disc structure; The upper surface of described disk is divided into first FX at middle part, second FX on the left side and the 3rd FX on the right; Upper bed-plate 2 is fixed on lower bottom base 1 by the rotating shaft of band base torsion spring by described first FX, upper bed-plate 2 is made to realize rotating relative to lower bottom base 1, upper bed-plate 2 is connected with one end square flange of electric field boom rod member, achieves the rotation of electric field boom rod member around lower bottom base rotating shaft; Described second FX and the distribution of the 3rd FX are used for fixing left socle 3 and right support 4.
Compared with prior art, technical advantage of the present invention is: electric field boom provided by the invention can launch by development mechanism on one's own account, meets the requirement that the requirement of sounding rocket launch mission is three-axis stabilization attitude at ascent stage rocket; In addition the clamping releasing structure of boom provided by the invention can make electric field boom launch rapidly at specified altitude, meets the short requirement of rocket working time and ensure that the search coverage of probe.Namely this programme boom rod member adopts flexible carbon fibre material to make first, and the elasticity of flexure potential energy that boom launches rod part drives, and quality is light, and boom launches very little on the impact of rocket attitude, launches more reliable and safety.
Accompanying drawing explanation
Fig. 1 electric field boom provided by the invention rounding state front view;
Fig. 2 electric field boom provided by the invention rounding state top view;
Fig. 3 electric field boom provided by the invention rounding state shaft side figure;
Fig. 4 single electric field boom rod member collapsed shape schematic diagram provided by the invention;
Fig. 5-a and Fig. 5-b is single electric field boom rounding state schematic diagram provided by the invention;
Fig. 6-a and 6-b is that single electric field boom rod member provided by the invention launches schematic diagram;
Schematic diagram opened by Fig. 7-a and 7-b single electric field boom left and right provided by the invention clamping plate;
Fig. 8 electric field boom provided by the invention launches schematic diagram;
To be single electric field boom master provided by the invention respectively look and right view depending on a, left side for Fig. 9-a, 9-b and 9-c;
Figure 10 single electric field boom axonometric drawing provided by the invention;
Figure 11 single electric field boom front view provided by the invention;
Figure 12-a and Figure 12-b is left limit block provided by the invention, right limit stop block structure schematic diagram respectively;
Figure 13 single electric field boom mechanical test Fixture Design schematic diagram provided by the invention;
Figure 14 single electric field boom assembling provided by the invention and heat test Fixture Design schematic diagram.
Accompanying drawing identifies:
1, lower bottom base 2, upper bed-plate 3, left socle
4, right support 5, left clamping plate 6, right clamping plate
7, clamping plate torsion spring 8, base torsion spring 9, electric field boom rod member
10, middle cylinder connection bracket 11, left limit block 12, right limit block
13, arc boss 14, coiling journal stirrup 15, fuse
16, fishing line 17, base shaft 18, clamping plate rotating shaft 19, electric field probe
20, electric field boom rod member projection
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The launch mission of the sounding rocket that the present invention records requires at ascent stage rocket it is three-axis stabilization attitude, therefore requires that electric field boom can launch by development mechanism on one's own account.Because the rocket working time is short, require that boom development mechanism can unlock rapidly at specified altitude and launch and lock, ensure the search coverage of probe.The electric field boom rod member 9 of this programme adopts flexible carbon fibre material to make, after the left clamping plate 5 of boom and right clamping plate 6 unlock and outwards open, flexible folding boom rod member 9 drives by elasticity of flexure potential energy and launches, upper bed-plate 2 rotates 90 degree relative to lower bottom base 1 simultaneously, and have pin to lock, upper bed-plate 2 and lower bottom base 1 are fixed together, operating position and rocket axes normal after boom launches.
A kind of arrow for sounding rocket electric field detecting provided by the invention carries the development mechanism of flexible folding boom, the lower bottom base 1 of this development mechanism mechanism is connected with sounding rocket pod dashboard, this development mechanism is also connected with cylinder in Separation cabin by middle cylinder connection bracket 10, and boom rod member top is connected with electric field probe 19.
Boom development mechanism is made up of lower bottom base 1, upper bed-plate 2, left socle 3, right support 4, left clamping plate 5, right clamping plate 6, electric field boom rod member 9, fuse 15, fishing line 16, middle cylinder connection bracket 10 etc.During rocket launching, electric field boom draws in pod, and clamped relieving mechanism is locked.After rocket flight arrives predetermined altitude, head body is separated, and unlocked by fuse 15 and fishing line, left clamping plate 5, right clamping plate 6 are outwards opened, and electric field boom Automatic-expanding is linear state.After electric field boom launches, under the state with end probe, cable, rod member has certain pointing accuracy.Flexible folding boom rod member 9 (i.e. column type flexible carbon fiber fluting folding rod) middle part is hollow-core construction, and probe cable can pass in the middle of hollow-core construction, achieves the electrical connection of popping one's head in electric field instrument.Boom development mechanism has the characteristics such as pointing accuracy is high, accurate positioning, compact conformation, bulk strength rigidity is high, mounting or dismounting are convenient, meets the demand of sounding rocket space science detection to boom.No matter and whether rocket rotates, electric field boom can Automatic-expanding.The present invention uses flexible carbon fiber boom first on sounding rocket, achieves the leap of growing out of nothing.Flexible carbon fiber boom and both arms probe-type electric field instrument complete the detection of electric field in space environment vertical sounding test mission jointly.Concrete structure is:
A kind of arrow provided by the invention carries flexible folding boom expanding unit, and described device comprises electric field boom rod member 9 and the clamping releasing unit for clamping release electric field boom rod member;
Described electric field boom rod member is that flexible carbon fiber folds boom; Described clamping releasing unit comprises: left clamping plate 5, right clamping plate 6, left socle 3, right support 4, fuse 15, fishing line 16, left limit block 11, right limit block 12, upper bed-plate 2, lower bottom base 1 and middle cylinder connection bracket 10; Wherein, upper bed-plate 2 is connected with lower bottom base 1 by base shaft, and what left socle 3 and right support 4 were parallel to each other is fixed on lower bottom base and the space formed between left socle 3 and right support 4 for holding the electric field boom rod member of gathering;
The lower end of described left clamping plate 5 is connected with the upper end of left socle 3 by clamping plate rotating shaft, the lower end of right clamping plate 6 is connected with the upper end of right support 4 by clamping plate rotating shaft, and the inner surface that contacts with electric field probe of left clamping plate 5 and right clamping plate 6 and electric field boom rod member is arranged the arc boss that some electric pole boom rod members with drawing in fit tightly, and then when left clamping plate 5 and right clamping plate 6 are positioned at vertical state simultaneously and the electric field boom close contact of gathering; Left socle 3 and right support 4 by middle cylinder connection bracket 10 and rocket electric field boom install instruments coil in cylinder be connected;
Described fuse 15 is fixed on the top of left clamping plate 5 outer surface, left clamping plate 5 and right clamping plate 6 are fastened and then are made left clamping plate 5 and right clamping plate 6 can keep vertical state by fishing line 16 and then make electric field boom rod member be in rounding state, and fishing line 16 one end contacts with fuse 15; When fuse 15 fuses fishing line 16, left clamping plate 5 and right clamping plate 6 outwards rotate 90 degree under the effect of clamping plate torsion spring 7, and then the electric field boom rod member that release is drawn in;
Described lower bottom base 1 is fixed on the dashboard in Separation cabin.
Optionally, above-mentioned left clamping plate 5 and right clamping plate 6 are connected with the upper end of left socle 3 with right support 4 respectively respectively by the clamping plate rotating shaft 18 of lower end and clamping plate torsion spring 7.
Optionally, above-mentioned electric field boom rod member 9 is the tubular type carbon fiber boom of the hollow that one folds through several times; And burst arranges a perforate; Described electric field boom rod member 9 one end is fixed on upper bed-plate 2 by square flange; The other end of electric field boom rod member is connected with electric field probe base by circular flange; The cable of electric field probe and connector pass the tubular type carbon fiber boom rod member of hollow.
Optionally, above-mentioned clamping release mechanism also comprises: left limit block 11 with right limit block 12; Described left limit block 11 lay respectively at the bottom of left socle 3 and right support 4 with right limit block 12; Moving downwards and backward for the carbon fiber boom rod member limiting rounding state with right limit block 12 of described left limit block 11; And the one end in the one end in close lower shoe 1 center of circle of left limit block 11 and close lower shoe 1 center of circle of right limit block 12 is separately fixed on the surface of left socle 3 and right support 4.
Optionally, above-mentioned left socle 3 is identical with right support 4 agent structure, and the top of left socle 3 and right support 4 supports left clamping plate 5 and right clamping plate 6 respectively, and the semi-circular flange by bottom and the lower bottom base 1 of left socle 3 and right support 4 are fixedly linked.
Optionally, above-mentioned left clamping plate 5 and right clamping plate 6 are as " L " shape structure, and are somebody's turn to do the vertical arm upper end stationary electric field probe 19 of " L " shape structure, and the top of being simultaneously somebody's turn to do the vertical arm of " L " shape structure arranges several coiling journal stirrups, for being wound around fishing line; The electric field boom rod member that the transverse arm that " L " shape structure comprises can fixedly tighten up, and an aperture is offered on the transverse arm top that " L " shape structure comprises, this aperture be positioned at " projection " that electric field boom rod member sets and cooperatively interact and then move upward spacing to electric field boom rod member rounding state.
Optionally, one end of a fishing line 16 is fixed on a journal stirrup below fuse, and this root fishing line passes the coiling journal stirrup on fuse 15, left clamping plate 5 and right clamping plate 6 successively again and binds.
Optionally, above-mentioned lower bottom base 1 is fixed on the dashboard in Separation cabin, and lower bottom base 1 is a disc structure; The upper surface of described disk is divided into first FX at middle part, second FX on the left side and the 3rd FX on the right; Upper bed-plate 2 is fixed on lower bottom base 1 by the rotating shaft of band base torsion spring by described first FX, upper bed-plate 2 is made to realize rotating relative to lower bottom base 1, upper bed-plate 2 is connected with one end square flange of electric field boom rod member, achieves the rotation of electric field boom rod member around lower bottom base rotating shaft; Described second FX and the distribution of the 3rd FX are used for fixing left socle 3 and right support 4.
Embodiment
Below for the folding three joint booms obtained for twice, describe technical scheme of the present invention in detail.
One, structure and layout designs
1, structural design
Electric field boom rod member is three joints, and boom overall diameter is designed to 23mm; 1000mm must be greater than from rocket body outer surface because electric field boom launches rear probe installed surface, and consider that the folding rear height overall of boom rod member does not exceed 466mm in pod, so the minimizing of boom joint number can bring the height of each joint boom to increase, so the gathering height overall of the present embodiment electric field boom is 464.77mm, as shown in Figure 1.
It is 3 joints that the electric field boom rod member 9 of the present embodiment passes through folding 2 foldings by 1 tubular type carbon fiber boom, as Fig. 9-a, shown in 9-b and 9-c.
Wherein, above-mentioned tubular type carbon fiber boom size: external diameter 23mm, wall thickness 0.3mm (the concrete wall thickness later stage may change), single cover draws envelope in: long 129.9mm; Wide 102mm; High 465mm; Installed surface distance of popping one's head in after single expansion rocket body surface distance: 1005mm.
The material of above-mentioned each unit is respectively: the material of joint rotating shaft is steel; The material driving torsion spring is spring steel; The material of securing member is steel; The material etc. of upper bed-plate and lower bottom base, clamping and releasing device structure is aluminium alloy; The material of electric field boom rod member is carbon fiber.
2, electric field boom layout designs
On electric field boom arrow, installment state is as shown in Figure 1, two booms be evenly arranged in diameter be ￠ 250mm circumferentially.
Electric field boom is symmetrical in rocket body pod installs top view as shown in Figure 2, and as shown in Figure 3, electric field boom clamp system released state and electric field boom deployed condition are as shown in Figure 8 for electric field boom rounding state shaft side figure.
1) clamping of electric field boom and release
Electric field boom is arranged in pod, hangs upside down on the faying face of load cabin and pod.During rocket launching, electric field boom rod member 9 is clamped by fuse 15 and fishing line 16 by clamping release mechanism, makes electric field boom be in rounding state, as shown in Figure 1.After rocket head body is separated, unlocked by fuse 15, clamping release mechanism is 90-degree rotation under the effect driving torsion spring 7, electric field boom rod member 9 is launched into linearity under the effect of elastic potential energy, the base torsion spring 8 of electric field rod member root makes boom axis and rocket rotational axis vertical simultaneously, achieves the locking positioning of boom expansion process.
2) clamping of electric field boom and retracting spring design
After simulation calculation, the spring design parameter obtained for electric field boom clamping release mechanism is as shown in table 1.
Table 1
| Installation site | Below the clamping plate of left and right | The rotating shaft of root bearing |
| Torque value (N.mm) | 30 | 250 |
| Wire diameter (mm) | 0.8 | 1.4 |
| Central diameter (mm) | 5.8 | 15.4 |
| Pitch (mm) | 0.9 | 1.9 |
| Axial length (mm) | 16.2 | 16.98 |
| Actual torque value (N.mm) | 29.98 | 250 |
| The number of turns | 17 | 7.2 |
Two, the expansion process of electric field boom is to the impact analysis of arrow attitude
Electric field boom mechanism deploying motion analysis is as follows:
1, arrow initial speed is the situation of 0
During 0s, cotton rope is by fuse blows, and movable wicket unlocks, and boom launches simultaneously;
0.47s, movable wicket is expanded to 90 ° completely, and boom continues to launch;
0.65s, in the middle part of boom, joint flattens;
0.8s, root joint flattens, and locks;
1.33s, boom outermost joint flattens, and boom launches completely
In sum, when arrow initial speed is 0, boom launches used time 1.33s completely.
2, arrow initial speed is the situation of 480 °/s
0s, cotton rope is by fuse blows, and movable wicket unlocks, and boom launches simultaneously;
0.296s, in the middle part of boom, joint flattens;
0.34s, root joint flattens, and locks;
0.39s, boom outermost joint flattens;
In sum, when arrow initial speed is 480 °/s, boom launches used time 0.39s completely, and arrow angular speed reduces to 466 °/s.
By emulation, can draw when arrow initial speed is 480 °/s, boom synchronous expansion on arrow attitude substantially without affect; But once boom launches asynchronous, owing to being subject to the effect of arrow spin centrifugal force, asynchronous expansion can make arrow attitude angle change a lot, thus causes arrow attitude chaotic.
By above analysis, can draw the following conclusions:
1) as long as arrow initial speed is 0 substantially, no matter boom synchronous expansion or asynchronous expansion, or only have one-sided expansion, arrow attitude is substantially unaffected;
2) when arrow initial speed is not 0, only having boom synchronous expansion, there is not any change in guarantee arrow attitude angle substantially;
3), when arrow initial speed is not 0, if boom launches asynchronous, arrow attitude angle will have greatly changed.Following suggestion is provided: after suggestion arrow pod is separated, first carries out gesture stability, make arrow rotating speed be 0 substantially, and then launch boom, otherwise the risk that confusion occurs arrow attitude can be strengthened based on conclusions.
Three, the fail-safe analysis of electric field boom and design
1 reliability model
Electric field boom reliability is divided into two large modules, and one is hold down gag, and another is development mechanism.The reliability of hold down gag module depends on two key points, and key point is whether fuse 15 can normal reliable work; Can another key point be normal reliable work for the pretension fishing line of left and right clamping plate.
There is series relationship between above-mentioned hold down gag and the large reliability module of development mechanism two, namely only have hold down gag normally to work and development mechanism just can be made normally to work; Inner in each reliability, be series relationship between reliability key point, when namely only having fuse and fishing line normally to work, guarantee band torsion spring pressing plate normally works simultaneously; When only having carbon fiber flexible boom and root twist-lock joint normally to work, guarantee electric field boom finally normally launches simultaneously.
The reliability prediction that 2 the present invention adopt
According to reliability model analysis, any one subsystem failures, system is cisco unity malfunction all, therefore these two subsystem bunchiness contact systems, and reliability prediction is as shown in table 2.
Band torsion spring clamping plate are made up of two panels, and every a slice is driven by two mutually redundant torsion springs and launches, and torsion spring moment through design and analysis, test, and adopts margin design.Fishing line passes from the fixing hole wide arc gap on clamping plate top, and bore edges fillet is excessive, and fishing line smooth outer surface, very light weight, not easily with other component interference or winding.Flexible carbon fiber boom rod member newly develops parts, do not have inheritance, but ground environment verification experimental verification is abundant.Boom root torsion spring makes boom be launched into and rocket axes normal, and torsion spring moment through design and analysis and ground experiment checking, and adopts margin design.
Table 2 reliability prediction
| Reliability unit | Reliability based distribution |
| Fuse | 0.999 |
| Fishing line | 0.9999 |
| Band torsion spring clamping plate | 0.9999 |
| Flexible carbon fiber boom rod member | 0.99 |
| Boom root torsion spring | 0.99 |
| Add up to | 0.9789 |
Four, electric field boom Dynamics Simulation Analysis
Mainly carried out Constructional Modal Analysis, overload response analysis, mechanism deploying motion analysis to electric field boom, simulation analysis draws:
(1) boom structure is all higher at horizontal and vertical fundamental frequency, meets the dynamic stiffness requirement of sounding rocket to boom structural design; (2) boom structure is under the effect of axis and horizontal combination inertial load, and the distortion of structure is all less, and maximum stress and distortion, all in the allowed band of equipment and materials, can bear the test of rocket acceleration environment.(3) mechanism deploying kinematics simulation analysis shows, boom launches not affect rocket attitude; (4) boom pointing accuracy meets the demand of electric field probe detection.
Five, electric field boom environmental test Fixture Design
Electric field boom environmental test project is as shown in table 3.As shown in figure 13, electric field boom assembling parts and heat test frock are as shown in figure 14 for mechanical test Fixture Design.
Table 3 environmental test project
Drawn by electric field boom Scheme design, Mechanics Simulation analysis, fail-safe analysis, environmental test design etc.: boom technical scheme is reasonable, economically feasible.Overall configuration, layout designs, Scheme design meet the requirement of boom all technical.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. arrow carries a flexible folding boom expanding unit, it is characterized in that, described device comprises electric field boom rod member (9) and the clamping releasing unit for clamping release electric field boom rod member;
Described electric field boom rod member is that flexible carbon fiber folds boom;
Described clamping releasing unit comprises: left clamping plate (5), right clamping plate (6), left socle (3), right support (4), fuse (15), fishing line (16), left limit block (11), right limit block (12), upper bed-plate (2), lower bottom base (1) and middle cylinder connection bracket (10);
Wherein, upper bed-plate (2) is connected with lower bottom base (1) by base shaft (17), and what left socle (3) and right support (4) were parallel to each other is fixed on lower bottom base and the space formed between left socle (3) and right support (4) for holding the electric field boom rod member of gathering;
The lower end of described left clamping plate (5) is connected with the upper end of left socle (3) by clamping plate rotating shaft, the lower end of right clamping plate (6) is connected with the upper end of right support (4) by clamping plate rotating shaft, and the inner surface that contacts with electric field probe of left clamping plate (5) and right clamping plate (6) and electric field boom rod member is arranged the arc boss that some electric pole boom rod members with drawing in fit tightly, and then when left clamping plate (5) and right clamping plate (6) are positioned at vertical state simultaneously and the electric field boom close contact of gathering; Left socle (3) and right support (4) are connected by middle cylinder connection bracket (10) and the rocket electric field boom middle cylinder coiled that installs instruments;
Described fuse (15) is fixed on the top of left clamping plate (5) outer surface, left clamping plate (5) and right clamping plate (6) are fastened and then are made left clamping plate (5) and right clamping plate (6) can keep vertical state by fishing line (16) and then make electric field boom rod member be in rounding state, and fishing line (16) one end contacts with fuse (15); When fuse (15) fusing fishing line (16), left clamping plate (5) and right clamping plate (6) outwards rotate 90 degree under the effect of clamping plate torsion spring (7), and then the electric field boom rod member that release is drawn in;
Described lower bottom base (1) is fixed on the dashboard in Separation cabin.
2. arrow according to claim 1 carries flexible folding stretch rod device, it is characterized in that, described left clamping plate (5) and right clamping plate (6) are connected with the upper end of left socle (3) with right support (4) respectively respectively by the clamping plate rotating shaft (18) of lower end and clamping plate torsion spring (7).
3. arrow according to claim 1 carries flexible folding boom expanding unit, it is characterized in that, described electric field boom rod member (9) is the tubular type carbon fiber boom of the hollow that one folds through several times; And burst arranges a perforate;
Described electric field boom rod member (9) one end is fixed on upper bed-plate (2) by square flange; The other end of electric field boom rod member is connected with electric field probe base by circular flange;
The cable of electric field probe and connector pass the tubular type carbon fiber boom rod member of hollow.
4. arrow according to claim 1 carries flexible folding boom expanding unit, it is characterized in that, described clamping release mechanism also comprises: left limit block (11) with right limit block (12);
Described left limit block (11) lay respectively at the bottom of left socle (3) and right support (4) with right limit block (12);
Moving downwards and backward for the carbon fiber boom rod member limiting rounding state with right limit block (12) of described left limit block (11); And the one end in the one end in close lower shoe (1) center of circle of left limit block (11) and close lower shoe (1) center of circle of right limit block (12) is separately fixed on the surface of left socle (3) and right support (4).
5. arrow according to claim 1 carries flexible folding boom expanding unit, it is characterized in that, described left socle (3) is identical with right support (4) agent structure, and the top of left socle (3) and right support (4) supports left clamping plate (5) and right clamping plate (6) respectively, the semi-circular flange by bottom and the lower bottom base (1) of left socle (3) and right support (4) are fixedly linked.
6. arrow according to claim 1 carries flexible folding boom expanding unit, it is characterized in that, described left clamping plate (5) and right clamping plate (6) are as " L " shape structure, and be somebody's turn to do vertical arm upper end stationary electric field probe (19) of " L " shape structure, the top of being simultaneously somebody's turn to do the vertical arm of " L " shape structure arranges several coiling journal stirrups, for being wound around fishing line;
The transverse arm that " L " shape structure comprises can fix the electric field boom rod member of gathering, and an aperture is offered on the transverse arm top that " L " shape structure comprises, this aperture be positioned at " projection " that electric field boom rod member sets and cooperatively interact and then move upward spacing to electric field boom rod member rounding state.
7. arrow according to claim 6 carries flexible folding boom expanding unit, it is characterized in that, one end of a fishing line (16) is fixed on a journal stirrup below fuse, and this root fishing line passes the coiling journal stirrup on fuse (15), left clamping plate (5) and right clamping plate (6) successively again and binds.
8. arrow according to claim 1 carries flexible folding stretch rod device, it is characterized in that, described lower bottom base (1) is fixed on the dashboard in Separation cabin, and lower bottom base (1) is a disc structure;
The upper surface of described disk is divided into first FX at middle part, second FX on the left side and the 3rd FX on the right;
Upper bed-plate (2) is fixed on lower bottom base (1) by the rotating shaft of band base torsion spring by described first FX, upper bed-plate (2) is made to realize rotating relative to lower bottom base (1), upper bed-plate (2) is connected with one end square flange of electric field boom rod member, achieves the rotation of electric field boom rod member around lower bottom base rotating shaft;
Described second FX and the distribution of the 3rd FX are used for fixing left socle (3) and right support (4).
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| CN201510432212.1A CN104990466B (en) | 2015-07-21 | 2015-07-21 | A kind of flexible sounding rocket electric field boom expanding unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841154A (en) * | 1972-12-26 | 1974-10-15 | Gte Sylvania Inc | Balloon borne differential temperature sensor and transmission system |
| CN101788250A (en) * | 2009-12-31 | 2010-07-28 | 中国科学院空间科学与应用研究中心 | Rocket-carrying telescope-feed boom deployment mechanism |
| CN102135403A (en) * | 2010-12-14 | 2011-07-27 | 中国科学院空间科学与应用研究中心 | Experimental device for ground expansion of rocket-borne electronic extensible rod |
| CN103063085A (en) * | 2012-12-27 | 2013-04-24 | 中国科学院空间科学与应用研究中心 | Arrow-loaded foldable extension rod unfolding mechanism |
-
2015
- 2015-07-21 CN CN201510432212.1A patent/CN104990466B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841154A (en) * | 1972-12-26 | 1974-10-15 | Gte Sylvania Inc | Balloon borne differential temperature sensor and transmission system |
| CN101788250A (en) * | 2009-12-31 | 2010-07-28 | 中国科学院空间科学与应用研究中心 | Rocket-carrying telescope-feed boom deployment mechanism |
| CN102135403A (en) * | 2010-12-14 | 2011-07-27 | 中国科学院空间科学与应用研究中心 | Experimental device for ground expansion of rocket-borne electronic extensible rod |
| CN103063085A (en) * | 2012-12-27 | 2013-04-24 | 中国科学院空间科学与应用研究中心 | Arrow-loaded foldable extension rod unfolding mechanism |
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| CN104990466B (en) | 2016-09-21 |
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