CN207008188U - Stopping means for spaceborne sweep mechanism - Google Patents
Stopping means for spaceborne sweep mechanism Download PDFInfo
- Publication number
- CN207008188U CN207008188U CN201720809613.9U CN201720809613U CN207008188U CN 207008188 U CN207008188 U CN 207008188U CN 201720809613 U CN201720809613 U CN 201720809613U CN 207008188 U CN207008188 U CN 207008188U
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- CN
- China
- Prior art keywords
- hall
- limiting device
- mechanical stop
- sweep mechanism
- electric limiting
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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.)
- Withdrawn - After Issue
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Abstract
This patent discloses a kind of stopping means for spaceborne sweep mechanism.Including mechanical stop limiter and electric limiting device, wherein electric limiting device includes two Hall mounting seats, two hall circuitboards, magnet steel, Hall transfer block, and mechanical stop limiter includes two electromechanical stops and two damping rubber blocks.It is characterized in that：The spacing angle of electric limiting device is less than the spacing angle of mechanical stop limiter, when sweep mechanism rotates to the extreme angles position of electric limiting device, triggering Hall switch powers off scan module, and rotatable parts then limit its rotation because inertia continues to rotate by mechanical stop limiter.The advantages of this patent, is：Electric limiting device and mechanical stop limiter are combined, and electric limiting device acts on prior to mechanical stop limiter, reduces the impact of mechanical collision shaft, this patent is simple in construction, and installation and adjustment are convenient, and reliability is high.
Description
Technical field
This patent is related to field of aerospace technology, more particularly to a kind of stopping means for spaceborne sweep mechanism.
Background technology
In aerospace optical remote sensing instrument, for sweep mechanism due to that can expand observation visual field, application is more and more extensive.Sweeping
Retouch and stopping means is typically designed with mechanism, the effect of stopping means, be on the one hand protection scanning mirror, in order to avoid scanning mirror and fixation
Bearing mechanical collision and damage；Still further aspect, stopping means can solve sweep mechanism cable due to sweep mechanism rotating band
Come winding and damage.
The stopping means of traditional spaceborne sweep mechanism general only separately installed mechanical stop limiter or electric limiting device.
If only separately installed mechanical stop limiter, mechanism it is out of control when, motor can not power off in time, shafting electric shape on motor
State collides with electromechanical stop would potentially result in shafting damage.If only separately installed electric limiting device, the cable of sweep mechanism
In the presence of the risk damaged because of rotation winding.Patent No. application publication number CN105371817A proposes " to be used to limit photoelectricity warp
The stopping means of latitude instrument rotary axis system continuous rotary ", only considered the continuous rotation of limitation gyroaxis, and spacing angle is non-adjustable
Section, and its is complicated.
The content of the invention
This patent provides a kind of stopping means for spaceborne sweep mechanism.Solve spaceborne sweep mechanism scanning mirror with
The collision problem of hold-down support, while also solve sweep mechanism cable and damaged due to the winding that sweep mechanism rotating band comes
Problem.
A kind of stopping means for spaceborne sweep mechanism, including mechanical stop limiter and electric limiting device, wherein electricity
Gas stopping means includes two Hall mounting seats 5, two hall circuitboards 6, magnet steel 2, Hall transfer blocks 4, mechanical stop limiter
Including two electromechanical stops 7 and two damping rubber blocks 8.This patent use technical scheme be：
Two described electromechanical stops 7 are separately mounted to the limit of two mechanical stop limiters of hold-down support 1 with screw
Angle position；
Described Hall transfer block 4 is arranged on by screw in the rotary shaft 3 of sweep mechanism, and rotary shaft 3 can be followed to rotate；
The magnet steel 2 is bonded in Hall transfer block 4 by silicon rubber；
Two described hall circuitboards 6 are separately mounted in two Hall mounting seats 5 by screw；
Two described Hall mounting seats 5 are separately mounted to two electric limiting devices of hold-down support 1 by screw
Extreme angles position；
The control of the distance between the place plane of magnet steel 2 and hall circuitboard 6 in described Hall transfer block 4 5~
10mm；
Two described damping rubber blocks 8 are adhered respectively in two electromechanical stops 7 by epoxy glue；
The spacing angular range of described electric limiting device is more unilateral than the slewing area that sweep mechanism requires big 1 ° -2 °；
The spacing angular range of described mechanical stop limiter is more unilateral than the spacing angular range of electric limiting device big
0.5°-2°；
When described Hall transfer block 4 rotates to the extreme angles position of electric limiting device, Hall switch is triggered, makes to sweep
Retouch mechanism motor power-off；
Described Hall transfer block 4 is after sweep mechanism power-off due to the extreme angles of inertial rotation to mechanical stop limiter
During position, the damping rubber block 8 being bonded by electromechanical stop 7 enters row buffering and angle limitation to rotary shaft 3；
The material selection titanium alloy or aluminium alloy of described Hall transfer block 4, Hall mounting seat 5 and electromechanical stop 7；
The gross mass loss of the material of the damping rubber block 8 is less than or equal to 1%, can coagulate volatile matter less than or equal to 0.1%；
Described electromechanical stop 7, the mounting hole of Hall mounting seat 5 are waist-shaped hole.
Compared with prior art, the beneficial effect of this patent is：
1st, electric limiting device and mechanical stop limiter are combined, and electric limiting device is made prior to mechanical stop limiter
With reducing the impact of mechanical collision shaft；
2nd, the limit device structure of this patent is simple, and installation and adjustment are convenient, and reliability is high.
Brief description of the drawings
Fig. 1 is the three dimensional structure diagram of stopping means；
In figure, 1 is hold-down support, and 2 be magnet steel, and 3 be rotary shaft, and 4 be Hall transfer block, and 5 be Hall mounting seat, and 6 be suddenly
That circuit board, 7 be electromechanical stop, and 8 be damping rubber block.
Embodiment
The embodiment of this patent is elaborated below in conjunction with the accompanying drawings, the present embodiment using the art of this patent scheme before
Put and implemented, give detailed embodiment and specific operating process, but the protection domain of this patent is not limited to down
The embodiment stated.
Certain spaceborne sweep mechanism arrives in -5 ° to 40.5 ° range scans, the spacing angular range of electric limiting device for -6 °
41.5 °, the spacing angular range of mechanical stop limiter is -6.5 ° to 42 °.Hall transfer block 4, the Hall mounting seat of stopping means
5 and electromechanical stop 7 use TC4 titanium alloys.Between the place plane of magnet steel 2 and hall circuitboard 6 in Hall transfer block 4 away from
From control in 6.5mm.
When Hall transfer block 4 rotates to -6 ° or 41.5 ° of the extreme angles position of electric limiting device, Hall is triggered
Switch, power off sweep mechanism motor.Rotatable parts then limit it because inertia continues to rotate by mechanical stop limiter
It can be rotated in -6.5 ° to 42 ° angular ranges.
It is successfully applied on certain spaceborne sweep mechanism, and has been passed through total with satellite according to the stopping means that this patent makes
The examination of the environmental tests such as the mechanical test of body, thermal vacuum test, performance meet to require.
Claims (3)
1. a kind of stopping means for spaceborne sweep mechanism, including mechanical stop limiter and electric limiting device, wherein electrically
Stopping means includes two Hall mounting seats (5), two hall circuitboards (6), magnet steel (2), Hall transfer block (4), machinery limit
Position device includes two electromechanical stops (7) and two damping rubber blocks (8), it is characterised in that：
Two described electromechanical stops (7) are separately mounted to the limit of two mechanical stop limiters of hold-down support (1) with screw
Angle position；
Described Hall transfer block (4) is arranged on by screw in the rotary shaft (3) of sweep mechanism, and rotary shaft (3) can be followed to turn
It is dynamic；The magnet steel (2) is bonded in Hall transfer block (4) by silicon rubber；
Two described hall circuitboards (6) are separately mounted on two Hall mounting seats (5) by screw；
Two described Hall mounting seats (5) are separately mounted to two electric limiting devices of hold-down support (1) by screw
Extreme angles position；
The distance between plane and hall circuitboard (6) where magnet steel (2) in described Hall transfer block (4) control 5~
10mm；
Two described damping rubber blocks (8) are adhered respectively on two electromechanical stops (7) by epoxy glue；
The spacing angular range of described electric limiting device is more unilateral than the slewing area that sweep mechanism requires big 1 ° -2 °；
The spacing angular range of described mechanical stop limiter it is more unilateral than the spacing angular range of electric limiting device it is big 0.5 °-
2°；
When described Hall transfer block (4) rotates to the extreme angles position of electric limiting device, Hall switch is triggered, makes scanning
Mechanism motor powers off；
Described Hall transfer block (4) is after sweep mechanism power-off due to the extreme angles position of inertial rotation to mechanical stop limiter
When putting, the damping rubber block (8) being bonded by electromechanical stop (7) enters row buffering to rotary shaft (3) and angle limits；
The material selection titanium alloy or aluminium alloy of described Hall transfer block (4), Hall mounting seat (5) and electromechanical stop (7).
A kind of 2. stopping means for spaceborne sweep mechanism according to claim 1, it is characterised in that：The rubber delays
The gross mass loss for rushing the material of block (8) is less than or equal to 1%, can coagulate volatile matter less than or equal to 0.1%.
A kind of 3. stopping means for spaceborne sweep mechanism according to claim 1, it is characterised in that：Described machinery
Block (7), the mounting hole of Hall mounting seat (5) are waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809613.9U CN207008188U (en) | 2017-07-06 | 2017-07-06 | Stopping means for spaceborne sweep mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809613.9U CN207008188U (en) | 2017-07-06 | 2017-07-06 | Stopping means for spaceborne sweep mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207008188U true CN207008188U (en) | 2018-02-13 |
Family
ID=61452415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720809613.9U Withdrawn - After Issue CN207008188U (en) | 2017-07-06 | 2017-07-06 | Stopping means for spaceborne sweep mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207008188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219623A (en) * | 2017-07-06 | 2017-09-29 | 中国科学院上海技术物理研究所 | A kind of stopping means for spaceborne sweep mechanism |
-
2017
- 2017-07-06 CN CN201720809613.9U patent/CN207008188U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219623A (en) * | 2017-07-06 | 2017-09-29 | 中国科学院上海技术物理研究所 | A kind of stopping means for spaceborne sweep mechanism |
| CN107219623B (en) * | 2017-07-06 | 2022-11-11 | 中国科学院上海技术物理研究所 | Limiting device for satellite-borne scanning mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180213 Effective date of abandoning: 20221111 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180213 Effective date of abandoning: 20221111 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |