CN211550397U - Vibration damper for photoelectric instrument - Google Patents
Vibration damper for photoelectric instrument Download PDFInfo
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- CN211550397U CN211550397U CN201922462656.6U CN201922462656U CN211550397U CN 211550397 U CN211550397 U CN 211550397U CN 201922462656 U CN201922462656 U CN 201922462656U CN 211550397 U CN211550397 U CN 211550397U
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- limiting groove
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Abstract
The utility model discloses a vibration damper for photoelectric instrument relates to vibration isolation buffering technical field, prevent changeing the subassembly including base, connecting plate, damping subassembly and connecting plate, the key lies in: the vibration reduction assembly comprises metal rubber and a vibration reduction plate; the connecting plate rotation-preventing component comprises an upper stainless steel sliding plate, a lower stainless steel sliding plate, a vertical guide component, a first polytetrafluoroethylene sliding block and a second polytetrafluoroethylene sliding block. The utility model discloses a design slip direction mutually perpendicular two polytetrafluoroethylene sliders can convert the angular displacement of connecting plate into the linear displacement of slider in two directions, and supporting spacing groove cuts to personally submit the trapezoidal, can guarantee that the slider is closely contacted with the groove side all the time, has avoided the error because of mechanical structure is not hard up to cause; can reduce the angle displacement to within 0.5', the damping is effectual, is applicable to photoelectric instrument platforms such as unmanned aerial vehicle anti-shake, applied photoelectricity formation of image.
Description
Technical Field
The utility model relates to a vibration isolation buffering technical field, concretely relates to a vibration damper for photoelectric instrument.
Background
In order to improve the measurement and control accuracy of the photoelectric instrument and equipment and increase the working reliability of the photoelectric instrument and equipment, a vibration isolation and reduction device is often required to be installed between the instrument and equipment and a carrying platform. However, the damping device inevitably generates angular displacement during use under actual complex working conditions. And the damage of the angular displacement disturbance to the photoelectric equipment is far greater than that of the linear displacement disturbance, so that the precision of the photoelectric instrument is greatly reduced.
At present, most of mainstream vibration isolators pay attention to isolation of vertical vibration, have insufficient transverse rigidity, and even amplify disturbance of angular displacement when used in parallel.
The prior art at least has the following technical problems:
the principle of the non-angular displacement vibration isolator that has used is mostly realized through parallelogram mechanism, the friction not hard up condition appears very easily in the linkage cooperation between the parallelogram structure needs the connecting rod, lead to the factor that can't get rid of the angular displacement (being less than 3 °), and the mechanism is complicated, when being great by the vibration isolation equipment quality, parallelogram mechanism is because the component part is relatively weak, easily produce elastic deformation, thereby hardly restrain the rigid body torsional mode by the vibration isolation equipment, the reliability is lower, can appear not hard up after using a period of time simultaneously, influence the result of use.
Disclosure of Invention
The to-be-solved problem of the utility model is to provide a vibration damper for photoelectric instrument prevents changeing the subassembly through the design connecting plate, turns into the linear displacement with the angle displacement in the damping subassembly damping.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a vibration damper for photoelectric instrument, includes base, connecting plate, sets up the base with damping subassembly and connecting plate between the connecting plate prevent changeing the subassembly, the key lies in:
the vibration reduction assembly comprises metal rubber limited on the base and a vibration reduction plate fixed on the metal rubber, and the vibration reduction plate is connected with the connecting plate by means of a connecting bolt;
the connecting plate anti-rotation component comprises an upper stainless steel sliding plate with a first limiting groove, a lower stainless steel sliding plate with a second limiting groove, a vertical guide component, a first polytetrafluoroethylene sliding block and a second polytetrafluoroethylene sliding block, wherein the upper stainless steel sliding plate is arranged between the connecting plate and the damping plate, the first polytetrafluoroethylene sliding block is fixed on the connecting plate and limited in the first limiting groove, the second polytetrafluoroethylene sliding block is fixed on the upper stainless steel sliding plate and limited in the second limiting groove,
first spacing groove is the bar and cuts the trapezoidal of section for the downward contraction, the length of first spacing groove is greater than the length of first polytetrafluoroethylene slider, the second spacing groove all is the bar and cuts the trapezoidal of section for the downward contraction, the length of second spacing groove is greater than the length of second polytetrafluoroethylene slider, first spacing groove with the second spacing groove sets up perpendicularly mutually go up the stainless steel slide with be equipped with the confession on the stainless steel slide down first through-hole and the second through-hole that connecting bolt passed respectively, first through-hole with the aperture of second through-hole all is greater than connecting bolt's diameter.
Furthermore, the vertical guide assembly comprises a guide sleeve fixed on the base and a guide rod matched with the guide sleeve and fixed on the lower stainless steel sliding plate.
Furthermore, the number of the first limiting grooves is at least 2, and the connecting plate is provided with first polytetrafluoroethylene sliding blocks corresponding to the number of the first limiting grooves.
Furthermore, the number of the second limiting grooves is at least 2, and the upper stainless steel sliding plate is provided with second polytetrafluoroethylene sliding blocks corresponding to the number of the second limiting grooves.
Further, the number of the connecting bolts is at least 3 along the circumferential direction of the vibration damping plate.
Further, the guide assembly is provided with at least 3 groups along the circumference of the lower stainless steel sliding plate.
Furthermore, a polytetrafluoroethylene ring which is in contact with the lower stainless steel sliding plate is arranged on the vibration damping plate.
Furthermore, a telescopic sleeve is arranged between the base and the connecting plate.
Furthermore, the metal rubber is limited in a mounting sleeve in the base, and the vibration damping plate is limited in a middle hole of the metal rubber by means of the connecting sleeve.
Furthermore, a spring limiting ring is arranged at the bottom of the metal rubber, and a spring is arranged between the spring limiting ring and the bottom surface of the mounting sleeve.
The utility model has the advantages that: 1. the metal rubber is adopted for vibration reduction, the three-dimensional equal-rigidity vibration reduction effect can be realized, and the high bearing capacity is realized by matching with the spring at the bottom; 2. the angular displacement of the connecting plate can be converted into the linear displacement of the sliding block in two directions by designing the two polytetrafluoroethylene sliding blocks with the sliding directions being vertical to each other, the cut surfaces of the matched limiting grooves are trapezoidal, the sliding blocks can be ensured to be always in close contact with the side surfaces of the grooves, and errors caused by looseness of a mechanical structure are avoided; 3. the connecting plate and the vibration reduction plate are fixed by bolts, so that the direct transmission of the vibration of the connecting plate to the metal rubber is ensured, and the vibration reduction efficiency is improved; 4. reduce the angle displacement to within 0.5', the damping is effectual, is applicable to photoelectric instrument platforms such as unmanned aerial vehicle anti-shake, applied photoelectricity formation of image.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a vibration damping device for an optoelectronic apparatus according to the present invention;
fig. 2 is a schematic structural diagram of a connection plate in a vibration damping device for an optoelectronic apparatus according to the present invention.
In the drawings: the vibration damping device comprises a base 1, a mounting sleeve 1-1, a connecting plate 2, a metal rubber 3, a vibration damping plate 4, a connecting bolt 5, an upper stainless steel sliding plate 6, a first through hole 6-1, a first limiting groove 6-2, a lower stainless steel sliding plate 7, a second through hole 7-1, a second limiting groove 7-2, a first polytetrafluoroethylene sliding block 8, a second polytetrafluoroethylene sliding block 9, a guide sleeve 10, a guide rod 11, a connecting screw 12, a telescopic sleeve 13, a connecting sleeve 14, a spring limiting ring 15, a polytetrafluoroethylene ring 16 and a spring 17.
Detailed Description
Referring to fig. 1, the utility model provides a vibration damper for photoelectric instrument, including base 1, connecting plate 2, set up damping subassembly and the connecting plate between base 1 and connecting plate 2 and prevent changeing the subassembly.
The damping assembly comprises metal rubber 3 limited on a base 1 and a damping plate 4 fixed on the metal rubber 3, wherein the damping plate 4 is connected with a connecting plate 2 by means of a connecting bolt 5. The number of the connecting bolts 5 is at least 3 along the circumferential direction of the damping plate 4 to ensure stable connection.
The connecting plate anti-rotation assembly comprises an upper stainless steel sliding plate 6 with a first limiting groove 6-2, a lower stainless steel sliding plate 7 with a second limiting groove 7-2, a vertical guide assembly, a first polytetrafluoroethylene sliding block 8 and a second polytetrafluoroethylene sliding block 9, wherein the upper stainless steel sliding plate 6 is arranged between the connecting plate 2 and the vibration reduction plate 4, the vertical guide assembly is arranged between the lower stainless steel sliding plate 7 and the base 1, the first polytetrafluoroethylene sliding block 8 is fixed on the connecting plate 2 and limited in the first limiting groove 6-2, and the second polytetrafluoroethylene sliding block 9 is fixed on the upper stainless steel sliding plate 6 and limited in the second limiting groove 7-2.
The first limiting groove 6-2 is in a strip shape, the section of the first limiting groove is in a downward-contracted trapezoid shape, and the length of the first limiting groove 6-2 is larger than that of the first polytetrafluoroethylene sliding block 8. The cross section of the sliding end of the first teflon slider 8 in the groove is also the same shape. The number of the first limiting grooves 6-2 is at least 2 (4 in the embodiment) arranged on the upper stainless steel sliding plate 6 in parallel, and the connecting plate 2 is provided with first polytetrafluoroethylene sliding blocks 8 corresponding to the number of the first limiting grooves 6-2.
The second limiting grooves 7-2 are all strip-shaped, the section of each second limiting groove is a trapezoid which contracts downwards, and the length of each second limiting groove 7-2 is larger than that of the second polytetrafluoroethylene sliding block 9. The first limiting groove 6-2 and the second limiting groove 7-2 are vertically arranged. The sliding end of the second ptfe slider 9 in the groove is also of the same shape in cross-section. The second limiting grooves 7-2 are at least 2 (4 in the embodiment) arranged in parallel on the lower stainless steel sliding plate 7, and the upper stainless steel sliding plate 6 is provided with second polytetrafluoroethylene sliding blocks 9 corresponding to the second limiting grooves 7-2 in number.
A first through hole 6-1 and a second through hole 7-1 for the connecting bolt 5 to pass through are respectively arranged on the upper stainless steel sliding plate 6 and the lower stainless steel sliding plate 7, and the diameters of the first through hole 6-1 and the second through hole 7-1 are both larger than the diameter of the connecting bolt 5, so that relative movement among the connecting plate 2, the upper stainless steel sliding plate 6 and the lower stainless steel sliding plate 7 is facilitated.
The vertical guide assembly comprises a guide sleeve 10 fixed on the base 1 and a guide rod 11 matched with the guide sleeve 10 and fixed on the lower stainless steel sliding plate 7. The guide assembly is provided with at least 3 groups along the circumference of the lower stainless steel sliding plate 7, so that the sliding plate can stably move up and down and can be prevented from rotating.
The vibration damping plate 4 is provided with a polytetrafluoroethylene ring 16 which is contacted with the lower stainless steel sliding plate 7, so that the relative sliding between the two is facilitated.
Each part below the connecting plate 2 is smaller than the connecting plate 2 in a disc shape, and a telescopic sleeve 13 is arranged between the base 1 and the connecting plate 2. The telescopic tube 13 can prevent foreign matters from entering the inner parts of the telescopic tube to influence the vibration damping effect, and meanwhile, the movement of the connecting plate 2 cannot be influenced. The telescopic tube 13 may be fixed by means of screws or gluing.
The metal rubber 3 is limited in a mounting sleeve 1-1 in the base 1, and the vibration damping plate 4 is limited in a middle hole of the metal rubber 3 by a connecting sleeve 14. The damping plate 4 is connected to a connecting sleeve 14 by means of a connecting screw 12. In order to enhance the bearing capacity, a spring limiting ring 15 is arranged at the bottom of the metal rubber 3, and a spring 17 is arranged between the spring limiting ring 15 and the bottom surface of the mounting sleeve 1-1.
The utility model discloses a device is satisfying sinusoidal vibration, and acceleration, shock absorption efficiency reach more than 90% under the condition of impact, and resonance point magnification is less than 3 times, and linear maximum displacement volume 3mm, the maximum displacement volume of corner are less than 0.5'. The obtained test data all meet the requirements of the vibration isolator.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. The utility model provides a damping device for photoelectric instrument, includes base (1), connecting plate (2), sets up base (1) with damping subassembly and connecting plate between connecting plate (2) prevent changeing the subassembly, its characterized in that:
the vibration reduction assembly comprises metal rubber (3) limited on the base (1) and a vibration reduction plate (4) fixed on the metal rubber (3), and the vibration reduction plate (4) is connected with the connecting plate (2) by means of a connecting bolt (5);
the connecting plate anti-rotation component comprises an upper stainless steel sliding plate (6) which is arranged between the connecting plate (2) and the vibration reduction plate (4) and is provided with a first limiting groove (6-2), a lower stainless steel sliding plate (7) with a second limiting groove (7-2), a vertical guide component arranged between the lower stainless steel sliding plate (7) and the base (1), a first polytetrafluoroethylene sliding block (8) which is fixed on the connecting plate (2) and limited in the first limiting groove (6-2), and a second polytetrafluoroethylene sliding block (9) which is fixed on the upper stainless steel sliding plate (6) and limited in the second limiting groove (7-2),
the first limiting groove (6-2) is in a strip shape, the section of the first limiting groove is in a downward-contracted trapezoid shape, the length of the first limiting groove (6-2) is greater than that of the first polytetrafluoroethylene sliding block (8),
the second limiting grooves (7-2) are all strip-shaped, the section of each second limiting groove is a trapezoid with a downward contraction shape, the length of each second limiting groove (7-2) is larger than that of the second polytetrafluoroethylene sliding block (9),
the first limiting groove (6-2) and the second limiting groove (7-2) are vertically arranged,
a first through hole (6-1) and a second through hole (7-1) for the connecting bolt (5) to pass through are respectively arranged on the upper stainless steel sliding plate (6) and the lower stainless steel sliding plate (7), and the diameters of the first through hole (6-1) and the second through hole (7-1) are larger than the diameter of the connecting bolt (5).
2. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: the vertical guide assembly comprises a guide sleeve (10) fixed on the base (1) and a guide rod (11) matched with the guide sleeve (10) and fixed on the lower stainless steel sliding plate (7).
3. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: the number of the first limiting grooves (6-2) on the upper stainless steel sliding plate (6) is at least 2, and first polytetrafluoroethylene sliding blocks (8) corresponding to the number of the first limiting grooves (6-2) are arranged on the connecting plate (2).
4. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: the number of the second limiting grooves (7-2) is at least 2, and the upper stainless steel sliding plate (6) is provided with second polytetrafluoroethylene sliding blocks (9) corresponding to the number of the second limiting grooves (7-2).
5. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: the number of the connecting bolts (5) is at least 3 along the circumferential direction of the vibration reduction plate (4).
6. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: the vertical guide assembly is provided with at least 3 groups along the circumferential direction of the lower stainless steel sliding plate (7).
7. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: and a polytetrafluoroethylene ring (16) which is in contact with the lower stainless steel sliding plate (7) is arranged on the vibration damping plate (4).
8. The vibration damping device for an optoelectronic instrument as set forth in claim 1, wherein: a telescopic sleeve (13) is arranged between the base (1) and the connecting plate (2).
9. The vibration damping device for an optoelectronic instrument according to any one of claims 1 to 8, wherein: the metal rubber (3) is limited in a mounting sleeve (1-1) in the base (1), and the vibration damping plate (4) is limited in a center hole of the metal rubber (3) by means of a connecting sleeve (14).
10. The vibration damping device for an optoelectronic instrument as set forth in claim 9, wherein: a spring limiting ring (15) is arranged at the bottom of the metal rubber (3), and a spring (17) is arranged between the spring limiting ring (15) and the bottom surface of the mounting sleeve (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462656.6U CN211550397U (en) | 2019-12-31 | 2019-12-31 | Vibration damper for photoelectric instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462656.6U CN211550397U (en) | 2019-12-31 | 2019-12-31 | Vibration damper for photoelectric instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550397U true CN211550397U (en) | 2020-09-22 |
Family
ID=72512336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922462656.6U Active CN211550397U (en) | 2019-12-31 | 2019-12-31 | Vibration damper for photoelectric instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550397U (en) |
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2019
- 2019-12-31 CN CN201922462656.6U patent/CN211550397U/en active Active
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