CN209892686U - High-precision angular displacement limiting vibration isolation buffering platform for photoelectric equipment - Google Patents
High-precision angular displacement limiting vibration isolation buffering platform for photoelectric equipment Download PDFInfo
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- CN209892686U CN209892686U CN201920382519.9U CN201920382519U CN209892686U CN 209892686 U CN209892686 U CN 209892686U CN 201920382519 U CN201920382519 U CN 201920382519U CN 209892686 U CN209892686 U CN 209892686U
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Abstract
The utility model provides a photoelectric equipment high accuracy limit angular displacement vibration isolation buffering platform, include last mounting panel and lower mounting panel through a plurality of isolator connections, install photoelectric equipment above the last mounting panel, lower mounting panel and mounting base are connected, go up along x between mounting panel and the lower mounting panel, a plurality of corner stop device are evenly installed to y axial symmetry, corner stop device is upper, produce between the lower mounting panel when receiving the vibration impact around x, y, the relative corner displacement of the three coordinate axis of z, ensure on, the mounting panel is the straight line relative motion all the time along the triaxial at the vibration impact in-process down, the linear displacement volume of corner stop device triaxial is greater than the extreme displacement volume of isolator triaxial. The utility model discloses not only carry out effectual vibration isolation buffering to optoelectronic equipment, to the effectual limit angular displacement of optoelectronic equipment, ensure the accurate position precision of optoelectronic equipment moreover.
Description
Technical Field
The utility model relates to a photoelectric equipment vibration isolation buffering, limit angle displacement control technical field specifically are a photoelectric equipment high accuracy limit angle displacement vibration isolation buffering platform, but the wide application is in the middle of the sea, land and air space equipment.
Background
At present, optoelectronic devices such as inertial navigators, gyroscopes, radars, optical platforms and the like are mainly mounted on vehicles in a rigid manner, and a small number of the optoelectronic devices are mounted by adopting vibration isolation and buffering systems.
The rigid mounting mode keeps good stability and reliability of the initial calibration coordinate and pose parameter state of the photoelectric equipment, but has high requirements on the strong impact resistance and strong vibration resistance of the equipment, and sometimes the equipment cannot meet the use requirements even if the equipment is subjected to electrical performance and structural reinforcement. In this case, the vibration isolation and buffering system has to be used to isolate the vibration impact. The vibration isolation buffer system is a flexible connection system, provides vibration isolation buffer protection for equipment in a strong vibration impact environment, and is easy to generate additional corner displacement, so that the precision of the corner of the equipment sensitive to the deviation of the corner is reduced, and the consequence of the difference of millicentimetres and thousandths is caused.
The prior micro-corner impact-resistant vibration isolation buffer system is a six-connecting-rod impact isolator. In principle, the device cannot accurately control the rotation angle precision in any motion state, namely, the device cannot maintain accurate directivity under vibration and impact environments. The device can return to the initial direction only when the device returns to the static state after the vibration and impact state stops, and the return precision is determined by the return precision of the six-connecting-rod impact isolator. Although the photoelectric compensation device can compensate the corner displacement during low-frequency vibration, the compensation cannot be performed during vibration and impact of medium and high frequencies. Therefore, the isolator cannot meet the requirement of the actual working state of the photoelectric equipment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve prior art's problem, provide a photoelectric equipment high accuracy limit angle displacement vibration isolation buffering platform, this platform not only carries out effectual vibration isolation buffering to photoelectric equipment, moreover to the effectual limit angle displacement of photoelectric equipment, ensures photoelectric equipment accurate positioning accuracy.
The utility model discloses an last mounting panel and lower mounting panel through connecting of a plurality of isolator, install optoelectronic equipment above the last mounting panel, lower mounting panel and mounting base are connected, go up along x between mounting panel and the lower mounting panel, a plurality of corner stop device are evenly installed to y axial symmetry, the relative corner displacement of corner stop device restriction, produce when receiving the vibration between the lower mounting panel around x, y, the three coordinate axis of z, ensure that upper and lower mounting panel is the straight line relative motion along the triaxial all the time at the vibration impact in-process, the linear displacement volume of corner stop device triaxial is greater than the extreme displacement volume of isolator triaxial.
Corner stop device include two-dimentional horizontal cross slide rail (or the horizontal cross combination of 2 one-dimensional slide rails), vertical slide rail and T type connecting piece, it has mutually perpendicular's cross section to be right trapezoid's straight flute to open respectively on the top horizontal plane of T type connecting piece and the vertical face in side, the lower guide rail of two-dimentional horizontal cross slide rail is installed in the horizontal straight flute in top of T type connecting piece, the guide rail of vertical slide rail is installed in the vertical flute in side, reuse fix with screw after adopting the cross section to eliminate the clearance for right trapezoid's wedge strip or wedge.
The improvement is further realized, 2 straight grooves which pass through the center and are mutually vertical and have right trapezoid cross sections are formed in the lower plane of the upper mounting plate along the x axis and the y axis, the upper horizontal guide rails of the 4 corner limiting devices are symmetrically and uniformly arranged in the straight grooves along the x axis and the y axis, and are respectively fixed by screws after clearance elimination is carried out by adopting wedge-shaped bars or wedge-shaped blocks; the corresponding position department of lower mounting panel opens there are 4 rectangular holes, and it has right trapezoid groove to open on the downthehole wall of corresponding side, and corner stop device's vertical slider is installed in the inslot, adopts wedge strip or wedge respectively to eliminate the back reuse fix with screw of clearance.
Further improve, the lower part of lower mounting panel correspondingly be fixed with 4 supplementary fixed blocks, its right-angle trapezoidal groove processes with lower mounting panel in the lump, adopts wedge strip or wedge and screw to carry out supplementary fixed to the vertical slider of corner stop device.
In a further improvement, the vibration isolator selects a vibration isolator without a resonance peak in a corresponding model according to vibration impact environments and equipment conditions of different carriers.
In a further improvement, the dynamic load borne by the slide rail of the corner limiting device is smaller than the rated dynamic load of the slide rail, and the torque borne by the three axial directions is smaller than the allowable static torque of the three axial directions of the slide rail.
The utility model has the advantages that:
1. the utility model discloses not only carry out effectual vibration isolation buffering to optoelectronic equipment, to the effectual angle limiting displacement of optoelectronic equipment, ensure optoelectronic equipment's accurate positioning accuracy moreover.
2. The utility model discloses the reinforcement requirement to optoelectronic equipment has been reduced.
3. The utility model discloses a shock dynamic load and moment of inertia that corner stop device received are undertaken to the isolator, have ensured that corner stop device is in low shock dynamic load and low impact moment of inertia state. Thereby the stability and the life of the limiting precision of the corner limiting device are ensured.
4. The utility model discloses choose for use no formant isolator, but effective control vibration isolation buffering limit displacement volume because of there being no formant to utilize the leveling function that it had and have the different and close characteristic of natural frequency of bearing capacity under the same overall dimension, constitute the low coupling vibration isolation system that the rigidity center is close the equipment barycenter, make the platform bear initial unbalanced moment minimum, tend to zero and move steadily.
5. The angular displacement precision alpha of the utility model depends on the clearance delta of the corner limiting devices and the distance l between the two corner limiting devices,
when δ is 0, the angular displacement is 0. Because the corner limiting device adopts a ball sliding rail with a 0-gap clearance and adopts a wedge-shaped strip or a wedge-shaped block for clearance elimination and fixation during installation, the corner displacement precision can reach 0 theoretically, and the actual angular displacement precision can be controlled to be 15 'to 0'.
6. The utility model discloses a corner stop device adopts the ball slide rail, and its coefficient of friction is very little, and consequently additional friction damping is also little, and the vibration isolation performance of vibration isolation system is not influenced hardly.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention with the mounting plate hidden.
Fig. 3 is a front view of the rotation angle limiting device.
Fig. 4 is a left side view of the rotation angle limiting device.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The utility model has a specific implementation mode as shown in fig. 1 and fig. 2, and comprises an upper mounting plate 1 and a lower mounting plate 3 which are connected by four vibration isolators 4, wherein the four vibration isolators 4 are uniformly distributed at four corners to form a vibration isolation buffer system; the upper surface of the upper mounting plate 1 is provided with photoelectric equipment, and the lower mounting plate 3 is connected with a mounting base 5; four corner limiting devices 2 are symmetrically and uniformly arranged between the upper mounting plate 1 and the lower mounting plate 3 along the x axis and the y axis, and the corner limiting devices 2 limit relative corner displacement around the x coordinate axis, the y coordinate axis and the z coordinate axis, which is generated when the upper mounting plate 1 and the lower mounting plate 3 are subjected to vibration impact, so that the upper mounting plate and the lower mounting plate are ensured to do linear relative motion along the three axial directions all the time in the vibration impact process; the triaxial linear displacement of the corner limiting device 2 is respectively larger than the triaxial limit displacement of the vibration isolator 4.
The structure of the corner limiting device 2 is shown in fig. 3 and 4, and comprises a two-dimensional horizontal cross slide rail 7, a vertical slide rail 8 and a T-shaped connecting piece 9. The top horizontal plane and the vertical face of the side face of the T-shaped connecting piece 9 are respectively provided with a straight groove with a cross section which is mutually perpendicular and is in a right trapezoid shape, the lower guide rail of the two-dimensional horizontal cross-shaped slide rail 7 is arranged in the top horizontal straight groove of the T-shaped connecting piece 9, the guide rail of the vertical slide rail 8 is arranged in the vertical groove of the side face, and the wedge-shaped bar or the wedge-shaped block 10 with a cross section which is in a right trapezoid shape is respectively adopted for carrying out gap elimination and then.
As shown in fig. 1 and 2, 2 straight grooves which pass through the center and are mutually perpendicular and have right trapezoid cross sections are formed on the lower plane of the upper mounting plate 1 along the x axis and the y axis, the upper horizontal guide rails of the 4 corner limiting devices 2 are symmetrically and uniformly arranged in the straight grooves along the x axis and the y axis, and are fixed by screws after clearance elimination is respectively carried out by adopting wedge-shaped strips or wedge-shaped blocks 10; the corresponding position department of lower mounting panel 3 opens there are 4 rectangular holes, and it has the right trapezoid groove to open on the downthehole wall of corresponding side, and corner stop device 2's vertical slider is installed in the inslot, adopts wedge strip or wedge 10 respectively to carry out reuse fix with screw after the clearance disappears.
As shown in fig. 1 and 2, 4 auxiliary fixing blocks 6 are correspondingly fixed on the lower portion of the lower mounting plate 3, rectangular trapezoidal grooves of the auxiliary fixing blocks are processed together with the lower mounting plate, and wedge-shaped bars or wedge-shaped blocks 10 and screws are adopted to perform auxiliary fixing on the vertical sliding blocks of the corner limiting device 2.
The vibration isolator 4 selects a vibration isolator without a resonance peak with a corresponding model according to the vibration impact environments and equipment conditions of different carriers.
The dynamic load borne by the slide rail of the corner limiting device 2 is smaller than the rated dynamic load of the slide rail, and the torque borne by the three axial directions is smaller than the allowable static torque of the three axial directions of the slide rail.
The corner limiting device adopts a ball sliding rail, and the friction coefficient of the ball sliding rail is very small, so that the additional friction damping is also small, and the vibration isolation performance of the vibration isolation system is hardly influenced.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (5)
1. The utility model provides a photoelectric equipment high accuracy limit angular displacement vibration isolation buffering platform, includes last mounting panel (1) and lower mounting panel (3) connected through a plurality of isolator (4), goes up installation photoelectric equipment above mounting panel (1), and lower mounting panel (3) are connected its characterized in that with mounting base (5): a plurality of corner limiting devices (2) are uniformly arranged between the upper mounting plate (1) and the lower mounting plate (3) along the x-axis and y-axis symmetry, the corner limiting devices (2) limit relative corner displacement around the x-axis, the y-axis and the z-axis, which is generated when the upper mounting plate (1) and the lower mounting plate (3) are impacted by vibration, and the triaxial linear displacement of the corner limiting devices (2) is respectively greater than the triaxial limit displacement of the vibration isolator (4).
2. The optoelectronic device high-precision angular displacement limited vibration isolation buffering platform according to claim 1, characterized in that: corner stop device (2) include horizontal cross slide rail of two-dimentional (7), vertical slide rail (8) and T type connecting piece (9), it has mutually perpendicular's cross section to be right trapezoid's straight flute to open respectively on the top horizontal plane of T type connecting piece (9) and the vertical face in side, the lower guideway of horizontal cross slide rail of two-dimentional (7) is installed in the horizontal straight flute in top of T type connecting piece (9), the guide rail of vertical slide rail (8) is installed in the vertical flute in side, adopt the cross section to be fixed again after the gap elimination for right trapezoid's wedge strip or wedge (10) respectively.
3. The high-precision angular displacement limiting vibration isolation buffering platform for the optoelectronic device according to claim 1 or 2, wherein: 2 straight grooves which pass through the center and are mutually vertical and have right trapezoid cross sections are formed in the lower plane of the upper mounting plate (1) along the x axis and the y axis, upper horizontal guide rails of the corner limiting device (2) are symmetrically and uniformly mounted in the straight grooves along the x axis and the y axis, and are fixed after being subjected to gap elimination by adopting wedge-shaped bars or wedge-shaped blocks (10); lower mounting panel (3) and corner stop device (2) junction are opened there is the slot, and it has the right trapezoid groove to open on the downthehole wall, and the vertical slider of corner stop device (2) is installed in the inslot, adopts wedge strip or wedge (10) to fix again after eliminating the clearance respectively.
4. The optoelectronic device high-precision angular displacement limited vibration isolation buffering platform according to claim 3, wherein: the lower part of lower mounting panel (3) be fixed with supplementary fixed block (6) that correspond with corner stop device (2) quantity, its right angle dovetail groove is processed with lower mounting panel in the lump, adopts wedge strip or wedge (10) and screw to assist fixedly to the vertical slider of corner stop device (2).
5. The high-precision angular displacement limiting vibration isolation buffering platform for the optoelectronic device according to claim 1 or 2, wherein: the dynamic load borne by the slide rail of the corner limiting device (2) is smaller than the rated dynamic load of the slide rail, and the torque borne by the three axial directions is smaller than the allowable static torque of the three axial directions of the slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382519.9U CN209892686U (en) | 2019-03-25 | 2019-03-25 | High-precision angular displacement limiting vibration isolation buffering platform for photoelectric equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920382519.9U CN209892686U (en) | 2019-03-25 | 2019-03-25 | High-precision angular displacement limiting vibration isolation buffering platform for photoelectric equipment |
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| CN209892686U true CN209892686U (en) | 2020-01-03 |
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| CN201920382519.9U Active CN209892686U (en) | 2019-03-25 | 2019-03-25 | High-precision angular displacement limiting vibration isolation buffering platform for photoelectric equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030318A (en) * | 2019-03-25 | 2019-07-19 | 南京捷诺环境技术有限公司 | Optoelectronic device high-precision limit angular displacement anti-vibration and shock platform |
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2019
- 2019-03-25 CN CN201920382519.9U patent/CN209892686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030318A (en) * | 2019-03-25 | 2019-07-19 | 南京捷诺环境技术有限公司 | Optoelectronic device high-precision limit angular displacement anti-vibration and shock platform |
| CN110030318B (en) * | 2019-03-25 | 2024-02-23 | 南京捷诺环境技术有限公司 | High-precision angle-limited displacement vibration isolation buffer platform for photoelectric equipment |
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