CN109631683A - A kind of folding and expanding device of grid rudder - Google Patents
A kind of folding and expanding device of grid rudder Download PDFInfo
- Publication number
- CN109631683A CN109631683A CN201811436731.5A CN201811436731A CN109631683A CN 109631683 A CN109631683 A CN 109631683A CN 201811436731 A CN201811436731 A CN 201811436731A CN 109631683 A CN109631683 A CN 109631683A
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- China
- Prior art keywords
- folding
- sleeve
- grid rudder
- expanding device
- ratchet
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/02—Stabilising arrangements
- F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
- F42B10/143—Lattice or grid fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/60—Steering arrangements
- F42B10/62—Steering by movement of flight surfaces
- F42B10/64—Steering by movement of flight surfaces of fins
Abstract
The invention discloses a kind of folding and expanding devices of grid rudder, are related to field of aerospace technology.The outer framework of the grid rudder is hinged by positioning rotating shaft and rudderpost, and the opposite side of outer framework towards rudder face is equipped with otic placode, and folding and expanding device includes: hold-down support；Sleeve, inwall processing have two sections of internal screw threads that screw pitch is equal and the hand of spiral is opposite；Two rod pieces are respectively provided with the external screw thread matched with two sections of internal screw threads, and one end of a rod piece and hold-down support are hinged, and one end of another rod piece and otic placode are removably hinged；Ratchet mechanism is set to sleeve outer wall, rotates for drive sleeve.The present invention duplicate to the progress of grid rudder can fold and unfold operation.
Description
Technical field
The present invention relates to field of aerospace technology, are specifically related to a kind of folding and expanding device of grid rudder.
Background technique
Grid rudder is the more liters in space that frame form or honeycomb style are arranged to by outer framework and internal numerous Bao Gebi
Power plane system.The folding and expanding of grid rudder in guided missile, carrier rocket using relatively broad, for example, the folding of grid rudder can be with
Body occupied space when reducing storage, the band increased in the confined space play quantity.
Grid rudder folds and unfolds the grid rudder unfolding mechanism for usually requiring complete set, currently, passing through electric detonation mode
It is unfolded to provide power to grid rudder, but can not be folded again after the expansion of grid rudder, cannot reuses, be not easy to army day
Often training.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of folding and expanding of grid rudder dresses
It sets, duplicate to the progress of grid rudder can fold and unfold operation.
The present invention provides a kind of folding and expanding device of grid rudder, the outer framework of the grid rudder by positioning rotating shaft with
Rudderpost is hinged, and the opposite side of outer framework towards rudder face is equipped with otic placode, and the folding and expanding device includes:
Hold-down support；
Sleeve, inwall processing have two sections of internal screw threads that screw pitch is equal and the hand of spiral is opposite；
Two rod pieces, are respectively provided with the external screw thread matched with two sections of internal screw threads, one end of a rod piece with it is described
Hold-down support is hinged, and one end of another rod piece and the otic placode are removably hinged；
Ratchet mechanism is set to the sleeve outer wall, for driving the sleeve rotating.
Based on the above technical solution, two rod pieces, which are respectively as follows:, is connected to the hold-down support by shaft
The first rod piece, and be connected to by pin shaft the second rod piece of the otic placode, the pin shaft, shaft are parallel with positioning rotating shaft.
Based on the above technical solution, the hold-down support includes bottom plate and two pieces of peaces being listed on bottom plate
Loading board, the gap between two pieces of mounting plates accommodate the hinged end on first rod piece with the hold-down support, two pieces of mounting plates
Be machined on the hinged end of the first rod piece with the shaft cooperation through-hole.
Based on the above technical solution, have on second rod piece with the hinged end of the otic placode described in accommodating
The through-hole with pin shaft cooperation is machined on the U-lag of otic placode, the two sidewalls of U-lag and the otic placode, the pin shaft
One end is equipped with pull ring.
Based on the above technical solution, the ratchet mechanism includes the ratchet being placed on the sleeve admittedly and turns
Rotatable parts on the sleeve, the spine that rotatable parts are equipped with Direction Control Unit and engage with ratchet are set dynamicly
Claw assembly, Direction Control Unit are selected corresponding by the position of engagement of change pawl assembly and ratchet for the ratchet mechanism
Ratchet direction.
Based on the above technical solution, the rotatable parts include the support plate that is set on the sleeve with
And two turntable, wherein two turntables are rotatablely connected with the sleeve, alternatively, support plate and the sleeve are rotatablely connected；
Between two turntables, two turntables are bolted with support plate for the ratchet and support plate；
The rotatable parts further include the handlebar being connected with the support plate, and the handlebar and sleeve are oppositely arranged.
Based on the above technical solution, the pawl assembly includes the left spine being hingedly connected in the support plate
Pawl and right pawl, the Direction Control Unit are set between left pawl and right pawl, control left pawl or right pawl be in
The position of engagement of the ratchet engagement.
Based on the above technical solution, the Direction Control Unit includes standard shaft and is fixed on convex on standard shaft
Wheel, one end of standard shaft are articulated in the plate face of the support plate, and the other end of standard shaft is equipped with steering lock, and steering lock turns left and right
When, the left pawl or right pawl are pushed away the ratchet and release engagement by the cam.
Based on the above technical solution, the pawl assembly further includes the limit element in the support plate,
Limit element is set between the left pawl and the movable end of right pawl.
Based on the above technical solution, on the every rod piece, the cross for the part being connect with the sleeve lining
Sectional dimension is maximum.
Compared with prior art, the embodiment of the present invention provides a kind of folding and expanding device of grid rudder, the outline border of grid rudder
Frame is rotatablely connected by positioning rotating shaft and rudderpost, and folding and expanding device includes hold-down support, sleeve, two rod pieces and ratchet machine
Structure, sleeve lining are machined with two sections of internal screw threads that screw pitch is equal and the hand of spiral is opposite；Two rod pieces are set to set end-to-end
In cylinder, there is the external screw thread that matches with two sections of internal screw threads, the opposite end of two rod pieces is respectively positioned on outside sleeve, respectively with fixation
Support and outer framework are hinged；Ratchet mechanism is set to sleeve outer wall, and drive sleeve rotation can carry out duplicate folding to grid rudder
Folded and expansion operation.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of grid of embodiment of the present invention rudder and folding and expanding device, and grid rudder turns to folding position
It sets；
Fig. 2 is the assembling schematic diagram of grid of embodiment of the present invention rudder and folding and expanding device, and grid rudder turns to expansion position
It sets；
Fig. 3 is the cross-sectional view of the folding and expanding device of grid rudder of the embodiment of the present invention；
Fig. 4 is the partial side view of the folding and expanding device of grid rudder of the embodiment of the present invention；
Fig. 5 is another side view of the folding and expanding device of grid rudder of the embodiment of the present invention；
Fig. 6 is the top view that turntable is removed in Fig. 5.
In figure:
1- hold-down support, 11- bottom plate, 12- mounting plate, 2- sleeve, 21- inner hole, 21a- levogyrate inner thread, 21b- dextrorotation
Internal screw thread；
3- ratchet mechanism, 31- ratchet, 32- rotatable parts, 321- support plate, 322- turntable, 323- handlebar, 33- spine
Claw assembly, 331- left pawl, the right pawl of 332-, 333- limit element, 34- Direction Control Unit, 341- standard shaft, 342- cam,
343- steering lock；
The first rod piece of 4-, the second rod piece of 5-, 51-U shape slot, 52- extension, 6- shaft, 7- pin shaft, 71- pull ring；
10- outer framework, 20- positioning rotating shaft, 30- rudderpost, 40- otic placode, the first trunnion of 50-, the first confined planes of 501-,
The second confined planes of 502-, 60- limit hole.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.
The embodiment of the present invention provides a kind of folding and expanding device of grid rudder, for carrying out duplicate folding to grid rudder
It is operated with expansion.
Grid rudder has been successfully applied to the gesture stability of carrier rocket as a kind of efficient pneumatic control.Due to
Carrier rocket big, quality weight with grid rudder size, in order to reduce the required structure space of rocket storage transport, usually by rocket
Body and grid rudder are separately stored, are transported, and are before transmission again installed in place grid rudder.
Grid rudder shown in Fig. 1, which is that a kind of positioning carrying is integrated, folds grid rudder from locking, should fold from locking
Grid rudder includes: 1 rudderpost, 30,1 grid rudders, 2 positioning rotating shafts, 20,2 compressed springs and 2 locking nuts, grid rudder
The frame form being made of outer framework 10 and the multiple thin lattice walls being set to inside outer framework 10,2 compressed springs are in Fig. 1
In be not shown.
Wherein, multiple trunnions are equipped on the outer framework 10 and rudderpost 30 of grid rudder, positioning rotating shaft 20 passes through on each trunnion
The shaft hole opened up, one end of positioning rotating shaft 20 are equipped with screw thread, and 2 locking nuts are fastened on the end respectively, realize grid rudder
Outer framework 10 is hinged by positioning rotating shaft 20 and rudderpost 30.
When practical application, one end of rudderpost 30 is connected with the installation bay section of grid rudder, and the other end is connected by positioning rotating shaft 20
Connect the outer framework 10 of grid rudder.
It is higher that grid rudder shown in Fig. 1 installs positioning requirements precision, and special tooling is not necessarily to when installation, and the set-up time is short,
Ensure to meet the needs of rocket rapid fire.
Fig. 1 is the schematic diagram that grid rudder turns to folding position, at this point, the axis of rudderpost 30 and rudder face are substantially vertical,
It can reduce occupied space when storage and transport.
Fig. 2 is the schematic diagram that grid rudder turns to expanded position, at this point, the axis of rudderpost 30 is substantially parallel with rudder face, grid
The rudder face of lattice rudder is towards heading.
In Fig. 1 and assembling schematic diagram shown in Fig. 2, positioning rotating shaft 20 and rudder face are located at ipsilateral, and outer framework 10 is towards rudder
The opposite side in face is equipped with otic placode 40, and folding and expanding device is located at 30 lower section of grid rudder and rudderpost.In other implementations,
Positioning rotating shaft 20 can also be located at the side of outer framework 10.
Preferably, otic placode 40 and positioning rotating shaft 20 are close to rudderpost 30, do not influence lift of the grid rudder in flight course
Performance.
The first trunnion 50 on outer framework 10 also has the first confined planes 501, and the side of outer framework 10 is the second limit
Plane 502 has the first corresponding confined planes and the second corresponding confined planes on rudderpost 30, when grid rudder turns to the first confined planes
When 501 limit face contact corresponding with first, folding position is reached.When to turn to the second confined planes 502 corresponding with second for grid rudder
When limiting face contact, expanded position is reached, it can be ensured that grid rudder positioning accuracy in expanded position is higher.
The corresponding limit hole 60 in position is additionally provided on rudderpost 30 and outer framework 10, when grid rudder turns to expanded position
Afterwards, clamping screw 503 passes through limit hole 60 and locks grid rudder and rudderpost 30, realizes the locking of grid rudder.
Referring to shown in Fig. 1 to Fig. 3, folding and expanding device includes hold-down support 1, sleeve 2, two rod pieces and ratchet mechanisms
3, sleeve 2 has the inner hole 21 that the longitudinal axis along sleeve 2 extends, and 2 inwall processing of sleeve has screw pitch equal and hand of spiral phase
Two sections of anti-internal screw threads；Two rod pieces are respectively provided with the external screw thread matched with two sections of internal screw threads, one end of a rod piece and solid
Determine support 1 hingedly, one end of another rod piece and otic placode 40 are removably hinged.Ratchet mechanism 3 is set to 2 outer wall of sleeve, uses
It is rotated in drive sleeve 2.
Two rod pieces are respectively as follows: the first rod piece 4 that hold-down support 1 is connected to by shaft 6, and removable by pin shaft 7
It is connected to the second rod piece 5 of otic placode 40, the first rod piece 4 and the end-to-end arrangement of the second rod piece 5, pin shaft 7, shaft 6 and positioning with unloading
Shaft 20 is parallel.
Internal screw thread includes that screw pitch is equal and extend respectively into the levogyrate inner thread and dextrorotation internal screw thread at 2 both ends of sleeve, and first
Rod piece 4 and the second rod piece 5 are respectively provided with the external screw thread of cooperation levogyrate inner thread and dextrorotation internal screw thread.
Preferably, the first rod piece 4 and the second rod piece 5 are respectively left-handed stud and dextrorotation stud, processing difference in inner hole 21
There are the levogyrate inner thread 21a matched with left-handed stud, dextrorotation stud and dextrorotation internal screw thread 21b, levogyrate inner thread 21a and the right side
Medial rotation screw thread 21b respectively accounts for the half of 2 inner wall of sleeve.When sleeve 2 rotates, since stud is oppositely oriented, two oppositely oriented
Stud simultaneously along sleeve 2 axis direction elongation or shorten, make relative distance variation it is double, improve grid rudder folding with
Efficiency is unfolded, so that connected grid rudder be driven to rotate around positioning rotating shaft, realizes fast folding and the expansion of grid rudder.
In other embodiments, the first rod piece 4 and the second rod piece 5 can also be respectively dextrorotation stud and left-handed stud.
In actual use, hold-down support 1 may be mounted in the installation bay section of grid rudder, also may be mounted at ground
Or on the platform on ground.
Referring to FIG. 1 to FIG. 4, in the present embodiment, positioning rotating shaft 20 and rudder face are located at ipsilateral, and 1 He of hold-down support
Rudderpost 30 is installed in installation bay section.In practical application, pin shaft 7, shaft 6 and positioning rotating shaft 20 are not generally aligned in the same plane
Interior, so that two rod pieces stretch in the inner hole 21 of sleeve 2 simultaneously, relative distance changes, thus by pin shaft 7 to grid
Lattice rudder applies torque, to drive grid rudder to rotate around positioning rotating shaft 20, avoids due to pin shaft 7, shaft 6 and positioning rotating shaft 20
It is in the same plane and thrust is applied rather than torque to positioning rotating shaft 20.
Operator uses 3 rotational sleeve 2 of ratchet mechanism, so that two rod pieces stretch in sleeve 2 simultaneously, with driving
Grid rudder turns to folding position or expanded position around positioning rotating shaft 20, realize repeatedly grid rudder fold and
Expansion operation improves the folding or expansion efficiency of grid rudder.After grid rudder turns to expanded position, clamping screw is used
Grid rudder and rudderpost 30 are locked across limit hole 60, extract pin shaft 7, so that grid rudder and folding and expanding device are detached from,
The rotation process of grid rudder is not influenced in flight course, guarantees the use reliability of grid rudder.
In addition, the hold-down support 1, sleeve 2 in folding and expanding device are connected with two rod pieces, in the folding to grid rudder
With expansion in the process without dismounting, convenient for operation.
Preferably, on every rod piece, the cross sectional dimensions for the part connecting with 2 inner wall of sleeve is maximum, from the portion of connection
The direction cross sectional dimensions for assigning to hinged end reduces, and has not only improved the mechanical strength of rod piece, but also mitigate weight, convenient for operation, mitigates
The load of operator.
Shown in Figure 4, hold-down support 1 includes bottom plate 11 and two pieces of mounting plates 12 being listed on bottom plate 11, and two pieces
Gap between mounting plate 12 accommodates the hinged end on the first rod piece 4 with hold-down support 1, two pieces of mounting plates 12 and the first rod piece 4
Hinged end on be machined with shaft 6 cooperate through-hole.
It is shown in Figure 4, there is on the second rod piece 5 with the hinged end of otic placode 40 U-lag 51 for accommodating otic placode 40, U-lag
The through-hole cooperated with pin shaft 7 is machined on 51 two sidewalls and otic placode 40, one end of pin shaft 7 is equipped with pull ring 71.
Preferably, a side wall of U-lag 51 has outwardly extending prolongs along the length direction perpendicular to the second rod piece 5
Extending portion 52, when pin shaft 7 extracts U-lag 51, extension 52 avoids pin shaft 7 from falling off for accommodating pin shaft 7.
Shown in referring to figs. 5 and 6, ratchet mechanism 3 includes the ratchet 31 being placed on sleeve 2 admittedly and is rotatably arranged at
Rotatable parts 32 on sleeve 2, wherein ratchet 31 is fixedly connected by fixed pin with sleeve 2, and rotatable parts 32 are equipped with side
To control assembly 34 and the pawl assembly engaged with ratchet 31 33, Direction Control Unit 34 by change pawl assembly 33 with
The position of engagement of ratchet 31 selects corresponding ratchet direction for ratchet mechanism 3 so that ratchet 31 and sleeve 2 together clockwise or
Person rotates counterclockwise.
In one embodiment, rotatable parts 32 include the support plate 321 that is set on sleeve 2 and with sleeve 2
Two turntables 322 of rotation connection, ratchet 31 and support plate 321 are between two turntables 322, two turntables 322 and support plate
321 are bolted.
Rotatable parts 32 further include the handlebar 323 being connected with support plate 321, and handlebar 323 and sleeve 2 are oppositely arranged.
It specifically, handlebar 323 is bolted with support plate 321, can assemble, be convenient for according to actual use situation more at the scene
Change the handlebar 323 of different length.
Using being bolted two turntables 322, so that support plate 321 and ratchet 31 are clamped between two turntables 322 side by side,
Stable support is provided for support plate 321, so that engaging connection surely between ratchet 31 and the pawl assembly 33 in support plate 321
It is fixed reliable, it is ensured that ratchet 31 is stablized with moving sleeve 2 to be rotated.
Pawl assembly 33 and Direction Control Unit 34 are set in support plate 321.Wherein, pawl assembly 33 includes difference
The left pawl 331 and right pawl 332 being articulated in support plate 322, Direction Control Unit 34 are set to left pawl 331 and right pawl
Between 332, controls left pawl 331 or right pawl 332 is in the position of engagement engaged with ratchet 31.
Preferably, Direction Control Unit 34 includes standard shaft 341 and the cam 342 being fixed on standard shaft 341, standard shaft 341
One end be articulated in the plate face of support plate 322, the other end of standard shaft 341 is equipped with steering lock 343,343 left and right turns of steering lock
When dynamic, left pawl 331 or right pawl 332 are pushed away ratchet 31 and release engagement by cam 342.
Steering lock 343 pass through the cam 342 that is attached thereto control left pawl 331 or right pawl 332 respectively with ratchet 31
Engagement and disconnection, to control the rotation direction of ratchet 31 and sleeve 2, in folding and expanding operation process, without repeatedly weight
Handlebar 323 is installed again, further increases the folding or expansion efficiency of grid rudder.
Pawl assembly 33 further includes the limit element 333 in support plate 322, and limit element 333 is set to left pawl
Between 331 and the movable end of right pawl 332.
When steering lock 343 turns left and right, left pawl 331 or right pawl 332 are pushed away ratchet 31 and released by cam 342
Engagement, continuously rotational handle bar 323, promotion ratchet 31 and sleeve 2 are rotated along different directions together back and forth, make 4 He of the first rod piece
The relative distance of second rod piece 5 increases or reduces, to realize folding and expansion of the grid rudder around positioning rotating shaft 20.
Shown in Figure 4, in another embodiment, rotatable parts 32 include the support being rotatablely connected with sleeve 2
Plate 321 and two turntables 322 being set on sleeve 2, ratchet 31 and support plate 321 are respectively positioned between two turntables 322, and two
Turntable 322 is bolted with support plate 321.
Rotatable parts 32 further include the proficiency shank 323 being connected with support plate 321, and handlebar 323 is opposite with sleeve 2 to be set
It sets, and the part that handlebar 323 is connect with support plate 321 is clamped in two turntables using multiple (such as three) bolts
Between 322, so that being fixedly connected between handlebar 323, support plate 321 and two turntables 322, improve folding and expanding device
Stress condition prolonged the service life with improving reliability.
Through slot is offered on one turntable 322, one end of standard shaft 341 passes through the through slot and connects steering lock 343, is convenient for
Operation.
Using being bolted two turntables 322, so that support plate 321 and ratchet 31 are clamped between two turntables 322 side by side,
Stable support is provided for support plate 321, so that engaging connection surely between ratchet 31 and the pawl assembly 33 in support plate 321
It is fixed reliable, it is ensured that ratchet 31 is stablized with moving sleeve 2 to be rotated.In addition, ratchet 31, pawl assembly 33 and cam 342 are respectively positioned on two
Between turntable 322, each component of folding and expanding device not only can protect, but also ensure the safety of operator.
Folding and expanding device of the embodiment of the present invention is free of priming system, and personnel's operation is convenient, safe.Structure is simple, and connection can
By property height, occupy little space, development rate is fast, convenient disassembly.It can be repeated several times and operate with, the daily grid of army can be met
Rudder folds, the training of expansion needs.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. the outer framework (10) of a kind of folding and expanding device of grid rudder, the grid rudder passes through positioning rotating shaft (20) and rudderpost
(30) hingedly, the opposite side of outer framework (10) towards rudder face is equipped with otic placode (40), which is characterized in that the folding and expanding device packet
It includes:
Hold-down support (1)；
Sleeve (2), inwall processing have two sections of internal screw threads that screw pitch is equal and the hand of spiral is opposite；
Two rod pieces are respectively provided with the external screw thread matched with two sections of internal screw threads, one end of a rod piece and the fixation
Hingedly, one end of another rod piece and the otic placode (40) are removably hinged for support (1)；
Ratchet mechanism (3) is set to the sleeve (2) outer wall, for driving the sleeve (2) to rotate.
2. the folding and expanding device of grid rudder as described in claim 1, which is characterized in that two rod pieces are respectively as follows: logical
The first rod piece (4) that shaft (6) is connected to the hold-down support (1) is crossed, and is connected to the otic placode (40) by pin shaft (7)
The second rod piece (5), the pin shaft (7), shaft (6) are parallel with positioning rotating shaft (20).
3. the folding and expanding device of grid rudder as claimed in claim 2, it is characterised in that: the hold-down support (1) includes bottom
Plate (11) and two pieces of mounting plates (12) being listed on bottom plate (11), the gap between two pieces of mounting plates (12) accommodate described the
On one rod piece (4) with the hinged end of the hold-down support (1), on the hinged end of two pieces of mounting plates (12) and the first rod piece (4)
It is machined with the through-hole with the shaft (6) cooperation.
4. the folding and expanding device of grid rudder as claimed in claim 2, it is characterised in that: on second rod piece (5) and institute
The hinged end for stating otic placode (40) has the U-lag (51) for accommodating the otic placode (40), the two sidewalls of U-lag (51) and the otic placode
(40) through-hole with the pin shaft (7) cooperation is machined on, one end of the pin shaft (7) is equipped with pull ring (71).
5. the folding and expanding device of grid rudder as claimed in claim 2, it is characterised in that: the ratchet mechanism (3) includes solid
The ratchet (31) being placed on the sleeve (2) and the rotatable parts (32) being rotatably arranged on the sleeve (2), rotation section
The pawl assembly (33) that part (32) is equipped with Direction Control Unit (34) and engages with ratchet (31), Direction Control Unit (34)
By changing the position of engagement of pawl assembly (33) and ratchet (31), corresponding ratchet direction is selected for the ratchet mechanism (3).
6. the folding and expanding device of grid rudder as claimed in claim 5, it is characterised in that:
The rotatable parts (32) include the support plate (321) being set on the sleeve (2) and two turntables (322),
In, two turntables (322) are rotatablely connected with the sleeve (2), alternatively, support plate (321) and the sleeve (2) are rotatablely connected；
Between two turntables (322), two turntables (322) and support plate (321) are logical for the ratchet (31) and support plate (321)
It crosses and is bolted；
The rotatable parts (32) further include the handlebar (323) being connected with the support plate (321), the handlebar (323)
It is oppositely arranged with sleeve (2).
7. the folding and expanding device of grid rudder as claimed in claim 6, it is characterised in that:
The pawl assembly (33) includes left pawl (331) and the right pawl being hingedly connected on the support plate (322)
(332), the Direction Control Unit (34) be set between left pawl (331) and right pawl (332), control left pawl (331) or
The right pawl of person (332) is in the position of engagement engaged with the ratchet (31).
8. the folding and expanding device of grid rudder as claimed in claim 7, it is characterised in that: Direction Control Unit (34) packet
The cam (342) for including standard shaft (341) and being fixed on standard shaft (341), one end of standard shaft (341) are articulated with the support plate
(322) in plate face, the other end of standard shaft (341) is equipped with steering lock (343), described convex when steering lock (343) turns left and right
The left pawl (331) or right pawl (332) are pushed away the ratchet (31) and release engagement by wheel (342).
9. the folding and expanding device of grid rudder as claimed in claim 7, it is characterised in that: the pawl assembly (33) further includes
Limit element (333) on the support plate (322), limit element (333) are set to the left pawl (331) and right pawl
(332) between movable end.
10. the folding and expanding device of grid rudder as described in claim 1, it is characterised in that: on the every rod piece, with institute
The cross sectional dimensions for stating the part of sleeve (2) inner wall connection is maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436731.5A CN109631683B (en) | 2018-11-28 | 2018-11-28 | Folding and unfolding device of grid rudder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436731.5A CN109631683B (en) | 2018-11-28 | 2018-11-28 | Folding and unfolding device of grid rudder |
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| Publication Number | Publication Date |
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| CN109631683A true CN109631683A (en) | 2019-04-16 |
| CN109631683B CN109631683B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811436731.5A Active CN109631683B (en) | 2018-11-28 | 2018-11-28 | Folding and unfolding device of grid rudder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525633A (en) * | 2019-08-06 | 2019-12-03 | 上海机电工程研究所 | Aircraft rear-fin stabilizer device |
| CN114152151A (en) * | 2021-12-08 | 2022-03-08 | 航天科工火箭技术有限公司 | Folding grid rudder |
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| DE2841773A1 (en) * | 1978-09-26 | 1980-04-03 | Messerschmitt Boelkow Blohm | Missile pivoting guidance mechanism - has fins extending in lengthwise direction of missile in rest position |
| JPS6239398A (en) * | 1985-08-12 | 1987-02-20 | グラマン・エアロスペ−ス・コ−ポレイシヨン | Folding blade structure |
| CN200992390Y (en) * | 2006-12-08 | 2007-12-19 | 安徽精科机器有限公司 | Ratchet-wheel type fastener |
| CN201744930U (en) * | 2010-05-20 | 2011-02-16 | 广州永联钢结构有限公司 | Bracing device for manufacturing steel structure |
| CN106197172A (en) * | 2016-09-08 | 2016-12-07 | 湖北航天技术研究院总体设计所 | A kind of self-locking positioning carrying integration folds grid rudder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525633A (en) * | 2019-08-06 | 2019-12-03 | 上海机电工程研究所 | Aircraft rear-fin stabilizer device |
| CN114152151A (en) * | 2021-12-08 | 2022-03-08 | 航天科工火箭技术有限公司 | Folding grid rudder |
| CN114152151B (en) * | 2021-12-08 | 2023-08-04 | 航天科工火箭技术有限公司 | Folding grid rudder |
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