CN106494647B - A kind of telescopic thruster protective cover - Google Patents
A kind of telescopic thruster protective cover Download PDFInfo
- Publication number
- CN106494647B CN106494647B CN201610866431.5A CN201610866431A CN106494647B CN 106494647 B CN106494647 B CN 106494647B CN 201610866431 A CN201610866431 A CN 201610866431A CN 106494647 B CN106494647 B CN 106494647B
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- China
- Prior art keywords
- cylinder
- thruster
- movable cylinder
- screw
- protective cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/242—Orbits and trajectories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/26—Guiding or controlling apparatus, e.g. for attitude control using jets
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Actuator (AREA)
Abstract
The present invention relates to a kind of telescopic thruster protective covers, characterized by comprising: fixed cylinder, movable cylinder, stop screw and lock-screw；Movable cylinder can axially be moved in a certain range by being threadably mounted in fixed cylinder along fixed cylinder, realize the independent exposing of thruster spout；Stop screw is mounted on equally distributed stop screw on movable cylinder, for limiting the scope of activities of the relatively fixed cylinder axial direction of movable cylinder, movable cylinder is prevented to be detached from fixed cylinder；Lock-screw is mounted in the lock-screw mounting hole of movable cylinder, and for spacecraft, in transport, reinforcement activity cylinder fixes being locked for cylinder relatively.
Description
Technical field
The invention belongs to spacecraft technology fields, in particular to a kind of to be suitable for protecting thruster during spacecraft AIT
Telescopic protective cover.
Background technique
Thruster is execution unit important in spacecraft attitude control subsystem, undertaken after transmitting is entered the orbit spacecraft attitude and
The function of orbit adjusting.Thruster is after being installed on spacecraft, since: the watchcase of a thruster is thin-wall construction, by external force pole
Easily-deformable damage；B thruster will be installed during installation according to designated precision, and installation back pressure device spout will avoid being knocked
It touches, the installation accuracy of thruster is prevented to be affected；Therefore, reliably protecting is carried out to thruster during spacecraft AIT.
Traditional thruster guard method is: installing the protective cover of a cylindrical shape or cubic on the outside of thruster, makes to push away
Power device is in an independent environment, prevents from the damage of colliding with of scientific research personnel and other equipment to thruster in this way.
But some processes during spacecraft AIT will test thrust (such as: thruster polarity test, thruster installation
Accuracy detection and the detection of thruster spout leak rate etc.), thruster spout need to individually be exposed and remove the included spout of thruster
Protection cap.
Traditional thruster protective cover has the disadvantage that (1), cannot since traditional thruster protective cover is overall structure
Expose thruster spout individually, can only integrally remove, the shell for removing rear entire thruster can also be completely exposed, and produce not
Necessary risk of colliding with, has seriously threatened the safety of thruster.(2) since traditional thruster protective cover is overall structure,
When needing individually to expose thruster spout, can only integrally it remove, it is complicated for operation, increase the operation content of spacecraft AIT, work
Make inefficiency.
Summary of the invention
Present invention solves the technical problem that be overcome the deficiencies of the prior art and provide it is a kind of can be independent by thruster spout
Exposing and simple and quick telescopic thruster protective cover.
Technical solution of the invention: a kind of telescopic thruster protective cover, including fixed cylinder, movable cylinder, limit spiral shell
Nail and lock-screw；Movable cylinder can axially be moved in a certain range by being threadably mounted in fixed cylinder along fixed cylinder,
Realize the independent exposing of thruster spout；Both ends are respectively equipped with two sections of same specification screw threads on the inside of movable cylinder, are between two sections of screw threads
Non-threaded cylindrical surface, cylindrical surface diameter are greater than Major Diam, in this way during movable cylinder is moved axially along fixed cylinder, no
Must whole rotary moveable cylinder need to only be pulled or promotion activity cylinder when passing through non-threaded place, achieve the purpose that simplify operation；Limit
Position screw is mounted on movable cylinder in equally distributed three stop screw mounting holes, and stop screw head and fixed cylinder outer circle
Column surface keeps certain distance, for limiting the scope of activities of the relatively fixed cylinder axial direction of movable cylinder, prevents movable cylinder to be detached from and fixes
Cylinder；Lock-screw is mounted in the lock-screw mounting hole of movable cylinder, and for spacecraft, in transport, reinforcement activity cylinder is relatively solid
Safety barrel is locked.
In above-mentioned telescopic thruster protective cover,
Fixed cylinder and movable cylinder are all made of tubular structure.
Fixed cylinder and movable cylinder are all made of aluminium alloy.
Stop screw uses stainless steel.
The present invention has the beneficial effect that compared with prior art
(1) present invention uses movable cylinder by being threadably mounted in fixed cylinder, and can be axial in certain model along fixed cylinder
Enclose interior movement, it can be achieved that thruster spout independent exposing, it is not necessary to remove entire thruster protective cover, ensure that thruster shell
Safety, improve work quality；
(2) present invention uses movable cylinder by being threadably mounted in fixed cylinder, and can be axial in certain model along fixed cylinder
Interior movement is enclosed, when needing individually to expose thruster spout, only needs rotary moveable cylinder that can expose thruster spout, it is easy to operate
Fast, work efficiency is high.
Detailed description of the invention
Fig. 1 is three-dimensional structure diagrammatic cross-section of the invention；
Fig. 2 is example schematic of the invention.
Specific embodiment
The invention will be further described with specific embodiment for explanation with reference to the accompanying drawing:
As shown in Figure 1, telescopic thruster protective cover of the invention, including fixed cylinder 1, movable cylinder 2,3 and of stop screw
Lock-screw 4；Movable cylinder 2 can axially be moved in a certain range by being threadably mounted in fixed cylinder 1 along fixed cylinder 1,
Movable 2 inside both ends of cylinder are respectively equipped with two sections of same specification screw threads, are unthreaded portion between two sections of screw threads, and unthreaded portion is circle
Cylinder, cylindrical surface diameter is greater than Major Diam, in this way during movable cylinder 2 is moved axially along fixed cylinder 1, it is not necessary to whole process rotation
Dynamic cylinder 2 is turned a work, when passing through non-threaded place, need to only be pulled or promotion activity cylinder 2, achievees the purpose that simplify operation.When needing list
When solely exposing thruster spout 6, movable cylinder 2 is first rotated clockwise, it can be directly by movable cylinder 2 along nothing when rotating to screw tip
Threaded portion push-in, finally rotates clockwise movable cylinder 2 again, is reliably connected movable cylinder 2 with fixed cylinder 1, can expose in this way
Thruster spout 6, and thruster shell 5, also in thruster protective cover, rotary moveable cylinder 2 counterclockwise on the contrary is simultaneously along no spiral shell
Line part pulls out movable cylinder 2, and another mistake hour hands rotary moveable cylinder 2 can protect thruster spout 6 in thruster protective cover；
Stop screw 3 is mounted on movable cylinder 2 in equally distributed three stop screw mounting holes, and stop screw head and fixed cylinder
Outer cylinder surface keeps certain distance, for limiting the movable cylinder 2 axial scope of activities of fixed cylinder 1 relatively, prevents movable cylinder 2 de-
From fixed cylinder 1, the distance of relatively fixed 1 outer surface of cylinder in adjustment 3 head of stop screw is 0.5mm when stop screw 3 is installed, and is prevented
Stop screw 3 and fixed cylinder 1 generate friction, and to smear locking glue on 3 screw thread of stop screw during installation, guarantee limit spiral shell
3 installation of nail is reliable；Lock-screw 4 is mounted in the lock-screw mounting hole of movable cylinder 2, and spacecraft passes through locking screw in transport
Follow closely frictional force being reliably fixed movable cylinder 2 relatively fixed cylinder 1 of 4 heads with 1 surface of fixed cylinder.
Fixed cylinder 1 and movable cylinder 2 are all made of tubular structure in the present invention.
The material selection stainless steel of stop screw 3.
Examples detailed above is that one kind for applying of the present invention is enumerated, those skilled in the art can according to different design requirement and
Design parameter carries out various improvement and replacement without departing from technical solution of the present invention, equally falls into protection of the invention
Range.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (5)
1. a kind of telescopic thruster protective cover, characterized by comprising: fixed cylinder, movable cylinder, stop screw and lock-screw；
Movable cylinder can axially be moved in a certain range by being threadably mounted in fixed cylinder along fixed cylinder, realize thruster spray
The independent exposing of mouth；Stop screw is mounted on movable cylinder and is evenly distributed on movable cylinder, relatively solid for limiting movable cylinder
The scope of activities of safety barrel axial direction prevents movable cylinder to be detached from fixed cylinder；Lock-screw is mounted on the lock-screw mounting hole of movable cylinder
In, for spacecraft, in transport, reinforcement activity cylinder fixes being locked for cylinder relatively.
2. telescopic thruster protective cover according to claim 1, it is characterised in that: the fixed cylinder and movable cylinder are adopted
Use tubular structure.
3. telescopic thruster protective cover according to claim 1, it is characterised in that: the fixed cylinder and movable cylinder are adopted
Use aluminium alloy.
4. telescopic thruster protective cover according to claim 1, it is characterised in that: the stop screw is using stainless
Steel.
5. telescopic thruster protective cover according to claim 1, it is characterised in that: the stop screw is mounted on activity
On cylinder in equally distributed three stop screw mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866431.5A CN106494647B (en) | 2016-09-29 | 2016-09-29 | A kind of telescopic thruster protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866431.5A CN106494647B (en) | 2016-09-29 | 2016-09-29 | A kind of telescopic thruster protective cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106494647A CN106494647A (en) | 2017-03-15 |
| CN106494647B true CN106494647B (en) | 2019-04-09 |
Family
ID=58290603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610866431.5A Active CN106494647B (en) | 2016-09-29 | 2016-09-29 | A kind of telescopic thruster protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106494647B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2322546A1 (en) * | 1972-05-04 | 1973-11-15 | Marchi | AUTOMATIC BARREL NARROWING DEVICE WITH PROGRESSIVE EFFECT FOR HUNTING RIFLES |
| CN201136593Y (en) * | 2007-12-25 | 2008-10-22 | 上海复合材料科技有限公司 | Micro-deformation carrier barrel |
| CN202937664U (en) * | 2012-12-04 | 2013-05-15 | 罗托克执行器有限公司 | Thrust base of actuating mechanism |
| CN104765220A (en) * | 2015-04-25 | 2015-07-08 | 哈尔滨工业大学 | Space-based telescopic sleeve type binary optical camera mechanism |
-
2016
- 2016-09-29 CN CN201610866431.5A patent/CN106494647B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2322546A1 (en) * | 1972-05-04 | 1973-11-15 | Marchi | AUTOMATIC BARREL NARROWING DEVICE WITH PROGRESSIVE EFFECT FOR HUNTING RIFLES |
| CN201136593Y (en) * | 2007-12-25 | 2008-10-22 | 上海复合材料科技有限公司 | Micro-deformation carrier barrel |
| CN202937664U (en) * | 2012-12-04 | 2013-05-15 | 罗托克执行器有限公司 | Thrust base of actuating mechanism |
| CN104765220A (en) * | 2015-04-25 | 2015-07-08 | 哈尔滨工业大学 | Space-based telescopic sleeve type binary optical camera mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106494647A (en) | 2017-03-15 |
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