CN208026980U - Photoelectricity is searched with pitching shafting - Google Patents
Photoelectricity is searched with pitching shafting Download PDFInfo
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- CN208026980U CN208026980U CN201820513546.0U CN201820513546U CN208026980U CN 208026980 U CN208026980 U CN 208026980U CN 201820513546 U CN201820513546 U CN 201820513546U CN 208026980 U CN208026980 U CN 208026980U
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Abstract
The utility model is related to a kind of photoelectricity to search with pitching shafting, including Elevation shell, hollow pitch axis and torque motor, Elevation shell one end is equipped with bearing block, the other end is equipped with end cap, bearing block is equipped with pressing plate and torque motor stator, pitch axis is internally provided with orientation speculum group, trim ring is equipped with outside pitch axis, torque motor rotor and pitching speculum group, pitch axis is respectively cooperating with and is supported on bearing block and Elevation shell by four spot contact bearing of thin-walled and thin-walled deep groove ball bearing, the inner ring and outer ring of four spot contact bearing of thin-walled is compressed by trim ring and pressing plate respectively, thin-walled deep groove ball bearing is compressed by end cap, torque motor, four spot contact bearing of thin-walled, orientation speculum group, thin-walled deep groove ball bearing and pitching speculum group are arranged successively in an axial direction.Shafting adds the pattern of thin-walled deep groove ball bearing using four spot contact bearing of thin-walled, compact-sized, shortens light path, and precision is high.
Description
Technical field
The utility model belongs to optoelectronic device field, and in particular to a kind of photoelectricity is searched with pitching shafting.
Background technology
Photoelectricity, which is searched, to be mounted on the infrared of equipment, laser sensor in Sensor box body, and use is infrared, laser multiband is total
The form of optical axis, then through orientation, the output of pitching shafting and signal is received, realize high-precision search and track function.In view of red
Outer light beam there are certain angle of divergence (about 9.4 °), the length of light path directly affect each optical element inside equipment, structural member it is outer
Shape size, photoelectricity search when tying up to design with pitch axis that more stringent requirements are proposed to light path, volume and precision.Usual pitching shafting
The mode that pairs of angular contact bearing pre-tightens is selected to ensure the precision of shafting, but such form compactedness is insufficient, and if pitching
Axis rigidity is insufficient, and when preloaded bearing most likely results in pitching shaft distortion, loses precision；In order to reduce axis as far as possible when design
Be weight, structural member usually selects aluminum alloy materials, due to aluminum alloy materials differ with the temperature linear expansion coefficient of bearing material compared with
Greatly, shafting torque can be caused to increase when variation of ambient temperature even stuck.
Utility model content
The purpose of this utility model is to provide a kind of photoelectricity and searches with pitching shafting, and shafting is added using four spot contact bearing of thin-walled
The pattern of thin-walled deep groove ball bearing, it is compact-sized, light path is shortened, precision is high.
Technical solution used by the utility model is：
A kind of photoelectricity is searched with pitching shafting, including Elevation shell, hollow pitch axis and torque motor, Elevation shell one end
It is equipped with end cap equipped with bearing block, the other end, bearing block is equipped with pressing plate and torque motor stator, and it is anti-that pitch axis is internally provided with orientation
Microscope group is penetrated, is equipped with trim ring, torque motor rotor and pitching speculum group outside pitch axis, pitch axis passes through four point contact axis of thin-walled
It holds to be respectively cooperating with thin-walled deep groove ball bearing and be supported on bearing block and Elevation shell, the inner ring of four spot contact bearing of thin-walled and outer
Circle is compressed by trim ring and pressing plate respectively, and thin-walled deep groove ball bearing is compressed by end cap, torque motor, four point contact axis of thin-walled
It holds, orientation speculum group, thin-walled deep groove ball bearing and pitching speculum group are arranged successively in an axial direction.
Further, bearing block is sub-assembly, includes the component one and component two of interconnection, four spot contact bearing of thin-walled
Coordinate with component one, pressing plate and torque motor stator are connect with component one and component two respectively, and one material of component is and thin-walled four
The identical or close stainless steel of the linear expansion coefficient of spot contact bearing material, two material of component are aluminium alloy.
Further, it is equipped with lightening hole on component one and component two.
Further, the material of component one and component two is respectively 2Cr13 and 6061-T6.
Further, pitching speculum group is fixed on pitch axis one end by flange, and Elevation shell is equipped with and limits flange
The rotating forward limited block and reversion limited block of position.
Further, ranging from -11 °~+71 ° of the mechanical position limitation of pitch axis.
Further, pitch axis one end is equipped with grating annulate shaft, and grating annulate shaft end face is fixed with grating ring, on Elevation shell
Reading head support is installed, reads and reading head mounting plate is installed on head support, reading is installed on reading head mounting plate
Head, reading head face grating ring.
Further, pitch axis outer wall partial cut.
Further, the accuracy class of four spot contact bearing of thin-walled and thin-walled deep groove ball bearing is P4.
The utility model has the beneficial effects that：
1. shafting adds the pattern of thin-walled deep groove ball bearing using four spot contact bearing of thin-walled, compact-sized, reduce pitching
Axial dimension effectively shortens light path under the premise of ensureing high-precision；Pre-tightening four spot contact bearing of thin-walled and thin-walled depth
Pitching shaft distortion, precision will not be caused high when ditch ball bearing.
2. bearing block under the premise of loss of weight, solves axis by the way of the structural member Combined machining to two kinds of materials
It is the stuck problem of high/low temperature.
Description of the drawings
Fig. 1 is the sectional view of the utility model embodiment.
Fig. 2 is the sectional view of A-A in Fig. 1.
Fig. 3 is the sectional view of B-B in Fig. 1.
Fig. 4 is the sectional view of the utility model embodiment bottom bracket.
Fig. 5 is the schematic diagram of pitch axis in the utility model embodiment.
In figure：1- pressing plates；2- trim rings；3- grating rings；4- grating annulate shafts；5- reading heads；6- reading head mounting plates；7- is read
Head support；8- torque motors；9- bearing blocks；Four spot contact bearing of 10- thin-walleds；11- Elevation shells；12- pitch axis；The side 13-
Position speculum group；14- thin-walled deep groove ball bearings；15- end caps；16- flanges；17- pitching speculum groups；18- inverts limited block；
19- rotates forward limited block；9.1- components one；9.2- left sets part two.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1 to Figure 3, in the present embodiment, a kind of photoelectricity is searched with pitching shafting, including Elevation shell 11, hollow
Pitch axis 12 and torque motor 8,11 one end of Elevation shell is equipped with bearing block 9, the other end is equipped with end cap 15, sets on bearing block 9
Have 8 stator of pressing plate 1 and torque motor, pitch axis 12 is internally provided with orientation speculum group 13,12 outside of pitch axis be equipped with trim ring 2,
8 rotor of torque motor and pitching speculum group 17, pitch axis 12 pass through four spot contact bearing 10 of thin-walled and thin-walled deep groove ball bearing
14 are respectively cooperating with and are supported on bearing block 9 and Elevation shell 11, and the inner ring and outer ring of four spot contact bearing 10 of thin-walled passes through respectively
Trim ring 2 and pressing plate 1 compress, and thin-walled deep groove ball bearing 14 is compressed by end cap 15, torque motor 8, four spot contact bearing 10 of thin-walled,
Orientation speculum group 13, thin-walled deep groove ball bearing 14 and pitching speculum group 17 are arranged successively in an axial direction.Shafting uses thin-walled four
The pattern of spot contact bearing 10 plus thin-walled deep groove ball bearing 14, it is compact-sized, reduce pitch axis 12 to size, ensure it is high-precision
Light path is effectively shortened under the premise of degree；It will not be led when pre-tightening four spot contact bearing 10 of thin-walled and thin-walled deep groove ball bearing 14
Cause pitching shaft distortion, precision high.
As shown in figure 4, in the present embodiment, bearing block 9 is sub-assembly, includes the component 1 and component of interconnection
2 9.2, four spot contact bearing 10 of thin-walled coordinates with component 1, pressing plate 1 and 8 stator of torque motor respectively with component 1 and
Component 2 9.2 connect, one 9.1 material of component be with the linear expansion coefficient of four spot contact bearing of thin-walled, 10 material it is identical or it is close not
Become rusty steel, and 2 9.2 material of component is aluminium alloy.Bearing block 9 is by the way of the structural member Combined machining to two kinds of materials, in loss of weight
Under the premise of, solve the problems, such as that shafting high/low temperature is stuck.
As shown in figure 4, in the present embodiment, lightening hole is equipped on component 1 and component 2 9.2.
In the present embodiment, the material of component 1 and component 2 9.2 is respectively 2Cr13 and 6061-T6.
As shown in Fig. 2, in the present embodiment, pitching speculum group 17 is fixed on 12 one end of pitch axis by flange 16, bows
Body 11 is equipped with the rotating forward limited block 19 for limiting flange 16 and reversion limited block 15 on one's back.The mechanical position limitation range of pitch axis 12
It is -11 °~+71 °.
As shown in Figure 1, in the present embodiment, 12 one end of pitch axis is equipped with grating annulate shaft 4,4 end face of grating annulate shaft is fixed
There is grating ring 3, reading head support 7 be installed on Elevation shell 11, reads and reading head mounting plate 6 is installed on head support 7,
Reading head 5,5 face grating ring 3 of reading head are installed on reading head mounting plate 6.Torque motor 8 drives pitch axis 12 after being powered
Suitable/to rotate in an anti-clockwise direction, grating ring 3 realizes angle measurement function with reading head 5 to pitching shafting.
As shown in figure 5, in the present embodiment, 12 outer wall partial cut of pitch axis.Both it had avoided and orientation speculum group 13
Interference, and dead weight is alleviated in the case where not influencing rigid circumstances.
In the present embodiment, the accuracy class of four spot contact bearing 10 of thin-walled and thin-walled deep groove ball bearing 14 is P4.Ensure
The shafting precision and installation firmly beforehand means taken according to bearing characteristics do not interfere with pitching shaft distortion.
In the present embodiment, trim ring 2 is installed by screw thread, pressing plate 1, grating ring 3, grating annulate shaft 4, reading head support 7,
8 stator of torque motor, 8 rotor of torque motor, component 1, component 2 9.2, end cap 15 and flange 16 are installed by screw.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (9)
1. a kind of photoelectricity is searched with pitching shafting, it is characterised in that：Including Elevation shell, hollow pitch axis and torque motor, bow
It faces upward shell one end and is equipped with end cap equipped with bearing block, the other end, bearing block is equipped with pressing plate and torque motor stator, inside pitch axis
It is equipped with trim ring, torque motor rotor and pitching speculum group, pitch axis equipped with orientation speculum group, outside pitch axis and passes through thin-walled
Four spot contact bearings and thin-walled deep groove ball bearing are respectively cooperating with and are supported on bearing block and Elevation shell, four spot contact bearing of thin-walled
Inner ring and outer ring compressed respectively by trim ring and pressing plate, thin-walled deep groove ball bearing is compressed by end cap, torque motor, thin-walled four
Spot contact bearing, orientation speculum group, thin-walled deep groove ball bearing and pitching speculum group are arranged successively in an axial direction.
2. photoelectricity as described in claim 1 is searched with pitching shafting, it is characterised in that：Bearing block is sub-assembly, including is mutually interconnected
The component one and component two connect, four spot contact bearing of thin-walled and component one coordinate, pressing plate and torque motor stator respectively with component
One and component two connect, one material of component is identical or close as the linear expansion coefficient of four spot contact bearing material of thin-walled stainless
Steel, two material of component are aluminium alloy.
3. photoelectricity as claimed in claim 2 is searched with pitching shafting, it is characterised in that：It is equipped with loss of weight on component one and component two
Hole.
4. photoelectricity as claimed in claim 2 is searched with pitching shafting, it is characterised in that：The material of component one and component two is respectively
2Cr13 and 6061-T6.
5. photoelectricity as described in claim 1 is searched with pitching shafting, it is characterised in that：Pitching speculum group is fixed on by flange
Pitch axis one end, Elevation shell are equipped with the rotating forward limited block of flange limiting and reversion limited block.
6. photoelectricity as claimed in claim 5 is searched with pitching shafting, it is characterised in that：Ranging from -11 ° of the mechanical position limitation of pitch axis
~+71 °.
7. photoelectricity as described in claim 1 is searched with pitching shafting, it is characterised in that：Pitch axis one end is equipped with grating annulate shaft,
Grating annulate shaft end face is fixed with grating ring, and reading head support is equipped on Elevation shell, reads and is equipped with reading on head support
Several mounting plates are equipped with reading head, reading head face grating ring on reading head mounting plate.
8. photoelectricity as described in claim 1 is searched with pitching shafting, it is characterised in that：Pitch axis outer wall partial cut.
9. photoelectricity as described in claim 1 is searched with pitching shafting, it is characterised in that：Four spot contact bearing of thin-walled and thin-walled zanjon
The accuracy class of ball bearing is P4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513546.0U CN208026980U (en) | 2018-04-11 | 2018-04-11 | Photoelectricity is searched with pitching shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513546.0U CN208026980U (en) | 2018-04-11 | 2018-04-11 | Photoelectricity is searched with pitching shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026980U true CN208026980U (en) | 2018-10-30 |
Family
ID=63909336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820513546.0U Active CN208026980U (en) | 2018-04-11 | 2018-04-11 | Photoelectricity is searched with pitching shafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268551A (en) * | 2020-10-15 | 2021-01-26 | 航天科工微电子系统研究院有限公司 | Photoelectric tracking and aiming device based on optical inner channel and double-seal ring dynamic seal |
| CN114166209A (en) * | 2021-10-26 | 2022-03-11 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | High-precision star tracker |
-
2018
- 2018-04-11 CN CN201820513546.0U patent/CN208026980U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268551A (en) * | 2020-10-15 | 2021-01-26 | 航天科工微电子系统研究院有限公司 | Photoelectric tracking and aiming device based on optical inner channel and double-seal ring dynamic seal |
| CN112268551B (en) * | 2020-10-15 | 2022-06-28 | 航天科工微电子系统研究院有限公司 | Photoelectric tracking and aiming device based on optical inner channel and double-seal ring dynamic seal |
| CN114166209A (en) * | 2021-10-26 | 2022-03-11 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | High-precision star tracker |
| CN114166209B (en) * | 2021-10-26 | 2023-08-08 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | High-precision star tracker |
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