CN204613392U - A kind of darkroom rcs measurement is with turning ejection device - Google Patents
A kind of darkroom rcs measurement is with turning ejection device Download PDFInfo
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- CN204613392U CN204613392U CN201520160753.9U CN201520160753U CN204613392U CN 204613392 U CN204613392 U CN 204613392U CN 201520160753 U CN201520160753 U CN 201520160753U CN 204613392 U CN204613392 U CN 204613392U
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- ejection device
- erecting frame
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Abstract
The utility model relates to a kind of darkroom rcs measurement with turning ejection device, by adopting servomotor and harmonic speed reducer, and be provided with motor adapter rack, harmonic speed reducer between servomotor and harmonic speed reducer and turn and push up between erecting frame and be provided with speed reduction unit erecting frame, can reduce to turn the size of ejection device, positioning precision and driving force that raising turns ejection device; Turn the pair of horns contact bearing arranged in the erecting frame of top, the weight of measured target can be transferred on metal support, thus improve the load-bearing capacity turning ejection device.According to darkroom of the present utility model rcs measurement with turning ejection device, size is little, load-carrying is large, positioning precision is high, effectively can reduce and turn the impact of ejection device on darkroom rcs measurement result, improves the accuracy of darkroom rcs measurement result.
Description
Technical field
The utility model relates to a kind of RCS (radar cross section, RCS) and measures with turning ejection device, and particularly a kind of darkroom rcs measurement is with turning ejection device.
Background technology
Below background of related of the present utility model is described, but these explanations might not form prior art of the present utility model.
In electromagnetic scattering is measured, the top of metal support is provided with and turns ejection device, and target is fixed on and turns on ejection device.Under the driving effect turning ejection device, target can carry out 360 ° of rotations at the top of metal support.For reducing to turn the interference of top to target, will turn ejection device is embedded in metal support top usually, and makes the size turning ejection device as far as possible little.
Add the mode of planetary reduction gear according to traditional motor, because the error of backlash of planetary reduction gear is comparatively large, is difficult to the requirement realizing high position precision and little error of backlash, affects the accuracy of measurement result; According to the mode of straight drive torque motor, be difficult to again the requirement realizing small size, large driving force.
Therefore, the darkroom rcs measurement solution turning ejection device that a kind of size is little, positioning precision is high is needed in prior art.
Utility model content
The purpose of this utility model is to propose the darkroom rcs measurement solution turning ejection device that a kind of size is little, positioning precision is high.
According to darkroom of the present utility model RCS rcs measurement with turning ejection device, comprise a turn top erecting frame, be arranged on the shaft coupling turning erecting frame inside, top, the grating assembly being arranged on shaft coupling upper end regularly rotationally, be arranged on the target fixed mount of grating assembly upper end regularly, be arranged on the Power Component of shaft coupling lower end regularly, and the scrambler be arranged on below Power Component, the input shaft of grating assembly stretches in shaft coupling from the upper end of shaft coupling, wherein, Power Component comprises: servomotor, and harmonic speed reducer; The output shaft of servomotor connects with harmonic speed reducer; The output shaft of harmonic speed reducer stretches in shaft coupling from the lower end of shaft coupling, passes through screw fastening between the output shaft of harmonic speed reducer and shaft coupling; The lower end of scrambler and servomotor is directly permanently connected.
Wherein, servomotor is for there being brush-type hollow-cup motor.
Wherein, motor adapter rack is provided with between servomotor and harmonic speed reducer; The lower end of motor adapter rack and the upper end of servomotor are permanently connected, and the upper end of motor adapter rack and the lower end of harmonic speed reducer are permanently connected.
Wherein, harmonic speed reducer and turn and push up between erecting frame and be provided with speed reduction unit erecting frame; The lower end of speed reduction unit erecting frame and the upper end of harmonic speed reducer are permanently connected, the upper end of speed reduction unit erecting frame with turn the lower end of pushing up erecting frame and be permanently connected.
Wherein, turn in the erecting frame of top and be provided with pair of horns contact bearing, comprising: the first angular contact bearing being positioned at top, and the second angular contact bearing being positioned at below; The upper surface of the first angular contact bearing contacts with described grating assembly.
Wherein, the upper surface of the outer ring of the first angular contact bearing is provided with bearing outer ring pressing plate, for limiting described angular contact bearing range of movement in vertical direction.
Wherein, be interference fit between the inner ring of angular contact bearing and shaft coupling, it is transition fit that the outer ring of angular contact bearing and turning is pushed up between erecting frame.
Wherein, the first angular contact bearing and the second angular contact bearing adopt back-to-back installation.
Wherein, grating assembly comprises: be arranged on the grating erecting frame of shaft coupling upper end regularly, be arranged on Circular gratings on grating erecting frame regularly, be arranged on the read head installing plate turning erecting frame upper end, top regularly, and be arranged on the grating reading head on read head installing plate regularly.
Wherein, the upper end of grating erecting frame is provided with grating dust cover regularly; Grating assembly is positioned at the inside of grating dust cover.
According to darkroom of the present utility model rcs measurement with turning ejection device, size is little, load-carrying is large, positioning precision is high, can reduce to turn the impact of ejection device on darkroom rcs measurement result, improves the accuracy of darkroom rcs measurement result.
Accompanying drawing explanation
By the embodiment part provided referring to accompanying drawing, feature and advantage of the present utility model will become easier to understand, in the accompanying drawings:
Fig. 1 illustrates according to the darkroom of the present utility model rcs measurement scheme of installation turning ejection device;
Fig. 2 illustrates according to the rcs measurement of the present utility model schematic diagram turning ejection device.
Embodiment
With reference to the accompanying drawings illustrative embodiments of the present utility model is described in detail.Be only for demonstration object to the description of illustrative embodiments, and be never the restriction to the utility model and application or usage.
See Fig. 1, show according to the darkroom of the present utility model rcs measurement scheme of installation turning ejection device.
Metal support 1 is cavity structure, and the top of metal support 1 is provided with stepped hole 2.Turn ejection device 3 to be arranged on regularly on stepped hole 2, and be embedded in the top of metal support 1.Turn the top that ejection device 3 is embedded in metal support 1 completely, metal support 1 and the overall dimensions turning ejection device 2 can be effectively reduced, reduce metal support 1 and turn the impact of ejection device 2 on measured target.
According to darkroom of the present utility model RCS rcs measurement with turning ejection device, comprising and turning top erecting frame 31, shaft coupling 32, grating assembly 33, target fixed mount 34, Power Component, and scrambler 37.Wherein, Power Component comprises: harmonic speed reducer 35, servomotor 36
Be described in detail with turning ejection device to according to darkroom of the present utility model RCS rcs measurement below in conjunction with Fig. 1,2.
Turn top erecting frame 31 for being embedded in the cavity structure at metal support 1 top, the horizontal external part turning erecting frame 31 top, top is arranged on the step of stepped hole 2 regularly, and the inside of stepped hole 2 is stretched in the bottom turning top erecting frame 31 from the top of stepped hole 2.Shaft coupling 32 is arranged on the inside turning top erecting frame 31 rotationally.
Grating assembly 33 is arranged on the upper end of shaft coupling 32 regularly, comprise: be arranged on the grating erecting frame 331 of shaft coupling 32 upper end regularly, be arranged on Circular gratings 332 on grating erecting frame 331 regularly, be arranged on the read head installing plate 333 turning erecting frame 31 upper end, top regularly, and be arranged on the grating reading head 334 on read head installing plate 333 regularly.In order to the precision preventing dust from affecting Circular gratings 332 and grating reading head 334, the upper end of grating erecting frame 331 is provided with grating dust cover 335 regularly; Grating assembly 33 is positioned at the inside of grating dust cover 335.
The horizontal support plate of grating erecting frame 331 is arranged on shaft coupling 32 upper end regularly; The upper end of horizontal support plate is provided with vertical protrusion regularly, and preferably, horizontal support plate and vertical protrusion are integrated, and target fixed mount 34 is arranged in vertical protrusion regularly by screw; The lower end of horizontal support plate is provided with input shaft, and the input shaft of grating erecting frame 331 stretches in shaft coupling 32 from the upper end of shaft coupling 32.When the input shaft of grating erecting frame 331 rotates under the effect of servomotor 36 and shaft coupling 32, drive target fixed mount 34 to rotate, and then the measured target be fixed on target fixed mount 34 is rotated.
The horizontal support plate of grating erecting frame 331 can be set directly on the end face on the top turning top erecting frame 31, also can be embedded in the top turning top erecting frame 31.In order to reduce the size turning ejection device 3, according to the darkroom of the present utility model rcs measurement preferred embodiment turning ejection device, the top turning top erecting frame 31 is provided with first step hole, the horizontal support plate of grating erecting frame 331 is arranged on the step in first step hole, and the upper end of shaft coupling 32 flushes with the step level in first step hole.
Circular gratings 332 is arranged on the horizontal support plate of grating erecting frame 331.Read head installing plate 333 is arranged on the upper end turning top erecting frame 31 regularly, read head installing plate 333 is provided with grating reading head 334.In order to ensure that the vertical height of grating reading head 334 is corresponding with the vertical height of Circular gratings 332, read head installing plate 333 can directly be fixed on the end face on the top turning top erecting frame 31, also can be embedded in the top turning top erecting frame 31.
Turning in the erecting frame 31 of top, the below in first step hole is provided with second step hole, and angular contact bearing 38 is arranged in second step hole.Preferably, the arranged outside on shaft coupling 32 top has the step corresponding with second step hole, and the vertical height of this step is identical with the vertical height in second step hole, and angular contact bearing 38 is arranged in the gap between the step outside second step hole and shaft coupling 32.The upper surface of angular contact bearing 38 contacts with the horizontal support plate of grating erecting frame 331, and the upper surface of angular contact bearing 38 outer ring is also provided with bearing outer ring pressing plate 381, for limit angles contact bearing 38 range of movement in vertical direction.The inner ring of angular contact bearing 38 contacts with shaft coupling 32, and the outer ring of angular contact bearing 38 is pushed up erecting frame 31 and contacted with turning.Preferably, be interference fit between the inner ring of angular contact bearing 38 and shaft coupling 32, it is transition fit that the outer ring of angular contact bearing 38 and turning is pushed up between erecting frame 31.In order to increase the load-bearing capacity of angular contact bearing 38, according to the darkroom of the present utility model rcs measurement preferred embodiment turning ejection device, turn in the erecting frame 31 of top and be provided with pair of horns contact bearing, comprising: the first angular contact bearing being positioned at top, and the second angular contact bearing being positioned at below; First angular contact bearing and the second angular contact bearing adopt back-to-back installation.The weight of measured target is acted on by angular contact bearing 38 and turns on the erecting frame 31 of top, is passed on metal support 1 by turning top erecting frame 31.Therefore, when carrying out darkroom rcs measurement, harmonic speed reducer and servomotor do not need the weight of bearing measured target, thus make to turn ejection device 3 and can carry more heavy weight measured target, improve the load-bearing capacity turning ejection device 3.
Power Component is arranged on the lower end of shaft coupling 32, comprising: harmonic speed reducer 35 and servomotor 36.
The output shaft of servomotor 36 connects with harmonic speed reducer 35, preferably, servomotor 36 adopts brush-type hollow-cup motor, efficiency is high, focusing performance is good, size is little, lightweight, and scrambler size is little, can reduce the size turning ejection device 3, improve and turn the impact of ejection device 3 on measured target, and then improve the accuracy of darkroom RS measurement result.Motor adapter rack 41 is also provided with between servomotor 36 and speed reduction unit 35; The lower end of motor adapter rack 41 and the upper end of servomotor 36 are permanently connected, and the upper end of motor adapter rack 41 and the lower end of harmonic speed reducer 35 are permanently connected.Scrambler 37 is arranged on the below of motor 36, and preferably, scrambler 37 and motor 36 are directly permanently connected.
Harmonic speed reducer 35 is arranged between shaft coupling 32 and servomotor 36, and the output shaft of harmonic speed reducer 35 stretches in shaft coupling 32 from the lower end of shaft coupling 32, passes through screw fastening between the output shaft of harmonic speed reducer 35 and shaft coupling 32.The lower end of harmonic speed reducer 35 connects with the output shaft of servomotor 36.The size of harmonic speed reducer 35 is little, error of backlash is little, output torque is large, can effectively reduce turn ejection device 3 size, improve and turn the positioning precision of ejection device 3.Preferably, harmonic speed reducer 35 and turn and push up between erecting frame 31 and be provided with speed reduction unit erecting frame 40; The lower end of speed reduction unit erecting frame 40 and the upper end of harmonic speed reducer 35 are permanently connected, the upper end of speed reduction unit erecting frame 40 with turn the lower end of pushing up erecting frame 31 and be permanently connected.
When carrying out darkroom rcs measurement, servomotor 36 rotates and drives harmonic speed reducer 35 to rotate, and under the effect of shaft coupling 32, grating assembly 33 rotates, and drives target fixed mount 34 to rotate further, thus realizes measured target at metal support rotary-top.
According to darkroom of the present utility model rcs measurement with turning ejection device, by adopting servomotor and harmonic speed reducer, and be provided with motor adapter rack, harmonic speed reducer between servomotor and harmonic speed reducer and turn and push up between erecting frame and be provided with speed reduction unit erecting frame, can reduce to turn the size of ejection device, positioning precision and driving force that raising turns ejection device; Turn the pair of horns contact bearing arranged in the erecting frame of top, the weight of measured target can be transferred on metal support, thus improve the load-bearing capacity turning ejection device.According to darkroom of the present utility model rcs measurement with turning ejection device, size is little, load-carrying is large, positioning precision is high, effectively can reduce and turn the impact of ejection device on darkroom rcs measurement result, improves the accuracy of darkroom rcs measurement result.
Although be described the utility model with reference to illustrative embodiments, but be to be understood that, the utility model is not limited in literary composition the embodiment described in detail and illustrate, when not departing from claims limited range, those skilled in the art can make various change to described illustrative embodiments.
Claims (10)
1. a darkroom rcs measurement is with turning ejection device, comprise a turn top erecting frame, be arranged on the shaft coupling of erecting frame inside, described turn of top rotationally, be arranged on the grating assembly of described shaft coupling upper end regularly, be arranged on the target fixed mount of described grating assembly upper end regularly, be arranged on the Power Component of described shaft coupling lower end regularly, and the scrambler be arranged on below described Power Component, the input shaft of described grating assembly stretches in described shaft coupling from the upper end of described shaft coupling, it is characterized in that:
Described Power Component comprises: servomotor, and harmonic speed reducer;
The output shaft of described servomotor connects with described harmonic speed reducer;
The output shaft of described harmonic speed reducer stretches in described shaft coupling from the lower end of described shaft coupling; Screw fastening is passed through between the output shaft of described harmonic speed reducer and described shaft coupling;
The lower end of described scrambler and described servomotor is directly permanently connected.
2. darkroom as claimed in claim 1 rcs measurement is with turning ejection device, it is characterized in that,
Described servomotor is for there being brush-type hollow-cup motor.
3. darkroom as claimed in claim 1 rcs measurement is with turning ejection device, it is characterized in that,
Motor adapter rack is provided with between described servomotor and described harmonic speed reducer;
The lower end of described motor adapter rack and the upper end of described servomotor are permanently connected, and the upper end of described motor adapter rack and the lower end of described harmonic speed reducer are permanently connected.
4. darkroom as claimed in claim 3 rcs measurement is with turning ejection device, it is characterized in that,
Described harmonic speed reducer and described turn push up between erecting frame and are provided with speed reduction unit erecting frame;
The lower end of described speed reduction unit erecting frame and the upper end of described harmonic speed reducer are permanently connected, and upper end and the described turn of lower end of pushing up erecting frame of described speed reduction unit erecting frame are permanently connected.
5. darkroom as claimed in claim 4 rcs measurement is with turning ejection device, it is characterized in that,
Be provided with pair of horns contact bearing in described turn of top erecting frame, comprise: the first angular contact bearing being positioned at top, and the second angular contact bearing being positioned at below;
The upper surface of the first angular contact bearing contacts with described grating assembly.
6. darkroom as claimed in claim 5 rcs measurement is with turning ejection device, it is characterized in that,
The upper surface of the outer ring of the first angular contact bearing is provided with bearing outer ring pressing plate, for limiting described angular contact bearing range of movement in vertical direction.
7. darkroom as claimed in claim 6 rcs measurement is with turning ejection device, it is characterized in that,
Be interference fit between the inner ring of described angular contact bearing and described shaft coupling, it is transition fit that the outer ring of described angular contact bearing and described turn push up between erecting frame.
8. darkroom as claimed in claim 7 rcs measurement is with turning ejection device, it is characterized in that,
First angular contact bearing and the second angular contact bearing adopt back-to-back installation.
9. darkroom rcs measurement, with turning ejection device, is characterized in that as claimed in claim 7 or 8,
Described grating assembly comprises:
Be arranged on the grating erecting frame of described shaft coupling upper end regularly, be arranged on Circular gratings on described grating erecting frame regularly, be arranged on the described read head installing plate turning erecting frame upper end, top regularly, and be arranged on the grating reading head on described read head installing plate regularly.
10. darkroom as claimed in claim 9 rcs measurement is with turning ejection device, it is characterized in that,
The upper end of described grating erecting frame is provided with grating dust cover regularly;
Described grating assembly is positioned at the inside of described grating dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160753.9U CN204613392U (en) | 2015-03-20 | 2015-03-20 | A kind of darkroom rcs measurement is with turning ejection device |
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| CN201520160753.9U CN204613392U (en) | 2015-03-20 | 2015-03-20 | A kind of darkroom rcs measurement is with turning ejection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301566A (en) * | 2015-10-08 | 2016-02-03 | 宁波市鄞州发辉机械科技有限公司 | Telescopic radar rack |
| CN105676184A (en) * | 2016-01-11 | 2016-06-15 | 北京环境特性研究所 | Low-scattering metal bracket system for remote calibration during RCS measurement process |
| CN105891788A (en) * | 2016-05-27 | 2016-08-24 | 北京环境特性研究所 | Rotary body for extracting echoes of metal support and echo extracting device |
-
2015
- 2015-03-20 CN CN201520160753.9U patent/CN204613392U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301566A (en) * | 2015-10-08 | 2016-02-03 | 宁波市鄞州发辉机械科技有限公司 | Telescopic radar rack |
| CN105301566B (en) * | 2015-10-08 | 2017-10-24 | 宁波市鄞州发辉机械科技有限公司 | A kind of telescopic radar frame |
| CN105676184A (en) * | 2016-01-11 | 2016-06-15 | 北京环境特性研究所 | Low-scattering metal bracket system for remote calibration during RCS measurement process |
| CN105676184B (en) * | 2016-01-11 | 2017-07-07 | 北京环境特性研究所 | It is a kind of for rcs measurement when strange land calibration low scattering metallic support system |
| CN105891788A (en) * | 2016-05-27 | 2016-08-24 | 北京环境特性研究所 | Rotary body for extracting echoes of metal support and echo extracting device |
| CN105891788B (en) * | 2016-05-27 | 2017-05-17 | 北京环境特性研究所 | Rotary body for extracting echoes of metal support and echo extracting device |
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