CN217898608U - Dual-frequency resonance type damper - Google Patents
Dual-frequency resonance type damper Download PDFInfo
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- CN217898608U CN217898608U CN202221470852.3U CN202221470852U CN217898608U CN 217898608 U CN217898608 U CN 217898608U CN 202221470852 U CN202221470852 U CN 202221470852U CN 217898608 U CN217898608 U CN 217898608U
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- 230000009977 dual effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000013016 damping Methods 0.000 abstract description 4
- 239000013618 particulate matter Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model discloses a dual-frequency resonance type damper, which belongs to the field of damping equipment and comprises a main body frame, wherein an upper cavity is arranged inside the main body frame, a lower cavity is arranged inside the main body frame, an upper slide block is connected inside the upper end of the main body frame in a sliding manner and is in sliding fit with the inner wall of the upper cavity, and a lower slide block is connected inside the lower end of the main body frame in a sliding manner; the beneficial effects of the utility model are that the stiffness coefficient of first spring and second spring is different, the adaptable different vibration frequency of spring of different stiffness coefficients, thereby make the equipment board with the object of the different vibration frequency of equipment board simultaneous contact down, make equipment both ends can simultaneous working, make equipment have the effect of dual-frenquency resonance, through main body frame, can provide the protection to first spring and second spring, prevent that the particulate matter from getting into in first spring and the second spring, hinder first spring and second spring normal work, the normal work of equipment has been guaranteed.
Description
Technical Field
The utility model relates to a shock-absorbing equipment field specifically says a dual-frenquency resonance type attenuator.
Background
The frequency modulation mass damper consists of a main structure and a substructure attached to the main structure, wherein the attached substructure has mass, rigidity and damping, so that the natural vibration frequency of the substructure can be adjusted to be as close as possible to the basic frequency or the excitation frequency of the main structure, thus when the main structure vibrates by excitation, the substructure generates an inertia force opposite to the vibration direction of the main structure to act on the main structure, the reaction of the main structure is attenuated and controlled, in the mechanical equipment, the damper is used for attenuating the vibration energy transmission between the structures, thereby reducing the noise caused by the vibration, the damping effects of the damper on the vibration of different frequencies are different, some dampers are suitable for attenuating the high-frequency vibration, while the damper is suitable for attenuating the low-frequency vibration, a single-frequency damper only has one natural frequency, therefore, the damper can only be suitable for the vibration attenuation of a certain specific frequency range, and the vibration frequency of more complex mechanical equipment can cover a higher frequency range, namely, both the high-frequency vibration and the low-frequency vibration, and the damper with two natural frequencies, namely a double-frequency damper is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double-frequency resonance type attenuator to solve the problem that proposes among the above-mentioned background art.
The technical scheme of the utility model is that: including main body frame, main body frame is inside to have seted up the upper plenum, and the inside cavity down of having seted up of main body frame, the inside sliding connection in main body frame upper end has the top shoe, and the top shoe with last cavity inner wall sliding fit, the inside sliding connection in main body frame lower extreme has lower slider, lower slider with cavity inner wall sliding fit down, and the top plenum quilt first cavity and second cavity are split into to the top shoe, the cavity quilt down the slider is split into third cavity and fourth cavity, the top shoe upper surface is provided with the equipment board, and goes up equipment board lower surface bolted connection and have the attenuator, the slider lower surface is provided with down the equipment board down, and down equipment board upper surface with attenuator lower extreme bolted connection, top shoe lower extreme upper surface is provided with first spring, and first spring other end fixed connection be in first cavity upper end inner wall, first spring, slider upper end lower surface is provided with the second spring, and second spring other end fixed connection be in third cavity upper end inner wall, first spring with the axis is vertical for central ring line distribution, the second spring is vertical to be distributed for central ring line.
Furthermore, the outer wall of the main body frame is provided with equipment platforms, and the equipment platforms are symmetrically distributed along the vertical center line of the main body frame.
Further, the outer wall of the equipment platform is provided with a rubber layer.
Further, first pilot hole has been seted up to last equipment board upper surface, and first pilot hole is provided with four, down the equipment board upper surface has seted up the second pilot hole, and the second pilot hole is provided with four.
Furthermore, a first air hole is formed in the outer wall of the main body frame, the first air hole is communicated with the first cavity, a second air hole is formed in the outer wall of the main body frame, the second air hole is communicated with the second cavity, a third air hole is formed in the outer wall of the main body frame, the third air hole is communicated with the third cavity, a fourth air hole is formed in the outer wall of the main body frame, and the fourth air hole is communicated with the fourth cavity.
Furthermore, go up slider lower end upper surface and be provided with the second and lead the position piece, and first cavity upper end inner wall is provided with first guide the position piece, the second is led the position piece and is set up the below at first guide the position piece, second guide the position piece and first guide the position piece setting and be in inside the first spring, lower slider lower end upper surface is provided with the fourth and leads the position piece, and third cavity upper end inner wall is provided with the third and lead the position piece, the fourth is led the position piece and is set up the below at the third guide the position piece, fourth guide the position piece and the setting of third guide the position piece is in inside the second spring.
The utility model discloses an improve and provide a dual-frenquency resonance type attenuator here, compare with prior art, have following improvement and advantage:
one is as follows: the utility model discloses the stiffness coefficient of first spring is different with the second spring, the adaptable different vibration frequency of spring of the different stiffness coefficient to make the object of last equipment board and the different vibration frequency of equipment board simultaneous contact down, make equipment both ends can the simultaneous working, make equipment have dual-frenquency resonant effect, through main body frame, can provide the protection to first spring and second spring, prevent during the particulate matter from getting into first spring and second spring, hinder first spring and second spring and normally work, guaranteed equipment normal work.
The second step is as follows: the utility model discloses a bleeder vent has guaranteed the stability of cavity internal gas pressure, has guaranteed the normal work of equipment, through the guide block at last, has guaranteed the position of spring, has guaranteed the slider direction of motion, does benefit to improve equipment's shock attenuation effect.
Drawings
The invention is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the main frame of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the upper slide block of the present invention.
Description of reference numerals: 1. a main body frame; 2. an equipment platform; 3. a rubber layer; 4. an upper slide block; 5. an equipment board is arranged; 6. a first assembly hole; 7. a damper; 8. a lower slide block; 9. a lower equipment plate; 10. a second assembly hole; 11. a first cavity; 12. a first air vent; 13. a second cavity; 14. a second air hole; 15. a third cavity; 16. a third air hole; 17. a fourth cavity; 18. a fourth air hole; 19. a first spring; 20. a first guide block; 21. a second guide block; 22. a second spring; 23. a third guide bit block; 24. and a fourth pilot block.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a double-frequency resonance damper through improvement, as shown in figures 1-4, comprising a main body frame 1, wherein the main body frame 1 is internally provided with an upper cavity, the main body frame 1 is internally provided with a lower cavity, the upper end of the main body frame 1 is internally connected with an upper slide block 4 in a sliding way, the upper slide block 4 is matched with the inner wall of the upper cavity in a sliding way, the lower end of the main body frame 1 is internally connected with a lower slide block 8 in a sliding way, the lower slide block 8 is matched with the inner wall of the lower cavity in a sliding way, the upper cavity is divided into a first cavity 11 and a second cavity 13 by the upper slide block 4, the lower cavity is divided into a third cavity 15 and a fourth cavity 17 by the lower slide block 8, the upper surface of the upper slide block 4 is provided with an upper equipment plate 5, the lower surface of the upper equipment plate 5 is connected with a damper 7 through a bolt, the lower surface of the lower slide block 8 is provided with a lower equipment plate 9, and the upper surface of the lower equipment plate 9 is connected with the lower end of the damper 7 through a bolt, the upper surface of the lower end of the upper sliding block 4 is provided with a first spring 19, the other end of the first spring 19 is fixedly connected with the inner wall of the upper end of the first cavity 11, the first spring 19, the lower surface of the upper end of the lower sliding block 8 is provided with a second spring 22, the other end of the second spring 22 is fixedly connected with the inner wall of the upper end of the third cavity 15, the first spring 19 is distributed in a circular way by taking the vertical central axis of the damper 7 as the center, the second spring 22 is distributed in a circular way by taking the vertical central axis of the damper 7 as the center, the stiffness coefficients of the first spring 19 and the second spring 22 are different, the springs with different stiffness coefficients can adapt to different vibration frequencies, so that the upper equipment plate 5 and the lower equipment plate 9 can simultaneously contact objects with different vibration frequencies, the two ends of the equipment can simultaneously work, the equipment has the function of dual-frequency resonance, and the first spring 19 and the second spring 22 can be protected through the main body frame 1, prevent that the particulate matter from getting into first spring 19 and second spring 22, hinder first spring 19 and second spring 22 normal work, guaranteed that equipment normally works.
The outer wall of the main body frame 1 is provided with the equipment platform 2, the equipment platform 2 is symmetrically distributed along the vertical central line of the main body frame 1, and through the two equipment platforms 2, the position of the equipment can be adjusted conveniently by personnel through tools.
The outer wall of the equipment platform 2 is provided with a rubber layer 3, and the friction force of the outer wall of the equipment platform 2 is increased through the rubber layer 3, so that the equipment is prevented from slipping when being gripped by personnel.
The outer wall of the main body frame 1 is provided with a first air hole 12, the first air hole 12 is communicated with the first cavity 11, the outer wall of the main body frame 1 is provided with a second air hole 14, the second air hole 14 is communicated with the second cavity 13, the outer wall of the main body frame 1 is provided with a third air hole 16, the third air hole 16 is communicated with the third cavity 15, the outer wall of the main body frame 1 is provided with a fourth air hole 18, the fourth air hole 18 is communicated with the fourth cavity 17, through the air holes, the stability of air pressure in the cavity is ensured, and the normal work of the equipment is ensured.
The upper surface of the lower end of the upper sliding block 4 is provided with a second guide block 21, the inner wall of the upper end of the first cavity 11 is provided with a first guide block 20, the second guide block 21 is arranged below the first guide block 20, the second guide block 21 and the first guide block 20 are arranged inside a first spring 19, the upper surface of the lower end of the lower sliding block 8 is provided with a fourth guide block 24, the inner wall of the upper end of the third cavity 15 is provided with a third guide block 23, the fourth guide block 24 is arranged below the third guide block 23, the fourth guide block 24 and the third guide block 23 are arranged inside a second spring 22, and through the guide blocks, the position of the spring is ensured, the movement direction of the sliding block is ensured, and the damping effect of the device is improved.
The working principle is as follows: the main body frame 1 can protect the first spring 19 and the second spring 22, prevent particles from entering the first spring 19 and the second spring 22, prevent the first spring 19 and the second spring 22 from normally working, ensure the normal working of the equipment, facilitate the position adjustment of the equipment by a tool through the two equipment platforms 2, increase the friction force of the outer wall of the equipment platform 2 through the rubber layer 3, prevent the sliding when a person grasps the equipment, facilitate the equipment installation through the assembling holes, improve the installation convenience of the equipment, improve the stability after the equipment installation through the four assembling holes, ensure the stability of the air pressure in the cavity through the air holes, ensure the normal working of the equipment through the guide block, ensure the position of the spring, ensure the motion direction of the sliding block, and facilitate the shock absorption effect of the equipment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A dual-frequency resonance type damper is characterized in that: comprises a main body frame (1), an upper cavity is arranged inside the main body frame (1), a lower cavity is arranged inside the main body frame (1), an upper sliding block (4) is connected to the upper end of the main body frame (1) in a sliding manner, the upper sliding block (4) is in sliding fit with the inner wall of the upper cavity, a lower sliding block (8) is connected to the lower end of the main body frame (1) in a sliding manner, the lower sliding block (8) is in sliding fit with the inner wall of the lower cavity, the upper cavity is divided into a first cavity (11) and a second cavity (13) by the upper sliding block (4), the lower cavity is divided into a third cavity (15) and a fourth cavity (17) by the lower sliding block (8), an upper surface of the upper sliding block (4) is provided with an upper equipment plate (5), a lower surface of the upper equipment plate (5) is in bolted connection with a damper (7), a lower surface of the lower sliding block (8) is provided with a lower equipment plate (9), an upper surface of the lower equipment plate (9) is in bolted connection with the lower end of the damper (7), a lower end of the upper sliding block (4) is provided with a first spring (19), the upper end of the second spring (22) is fixed to the inner wall (11), and the upper end of the other spring is fixed to the other end of the first spring (22), the first springs (19) are distributed in an annular array mode by taking the vertical central axis of the damper (7) as the center, and the second springs (22) are distributed in an annular array mode by taking the vertical central axis of the damper (7) as the center.
2. A dual-frequency resonant-type damper as recited in claim 1, wherein: the outer wall of the main body frame (1) is provided with an equipment platform (2), and the equipment platform (2) is symmetrically distributed along the vertical center line of the main body frame (1).
3. A dual frequency resonant type damper as set forth in claim 2, wherein: the outer wall of the equipment platform (2) is provided with a rubber layer (3).
4. A dual-frequency resonant-type damper as recited in claim 1, wherein: first pilot hole (6) have been seted up to last equipment board (5) upper surface, and first pilot hole (6) are provided with four, second pilot hole (10) have been seted up to lower equipment board (9) upper surface, and second pilot hole (10) are provided with four.
5. A dual-frequency resonant-type damper as recited in claim 1, wherein: the novel air-permeable door is characterized in that a first air hole (12) is formed in the outer wall of the main body frame (1), the first air hole (12) is communicated with the first cavity (11), a second air hole (14) is formed in the outer wall of the main body frame (1), the second air hole (14) is communicated with the second cavity (13), a third air hole (16) is formed in the outer wall of the main body frame (1), the third air hole (16) is communicated with the third cavity (15), a fourth air hole (18) is formed in the outer wall of the main body frame (1), and the fourth air hole (18) is communicated with the fourth cavity (17).
6. A dual-frequency resonant-type damper as recited in claim 1, wherein: go up slider (4) lower extreme upper surface and be provided with second guide block (21), and first cavity (11) upper end inner wall is provided with first guide block (20), second guide block (21) sets up the below at first guide block (20), second guide block (21) and first guide block (20) set up inside first spring (19), slider (8) lower extreme upper surface is provided with fourth guide block (24) down, and third cavity (15) upper end inner wall is provided with third guide block (23), fourth guide block (24) set up the below at third guide block (23), fourth guide block (24) and third guide block (23) set up inside second spring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221470852.3U CN217898608U (en) | 2022-06-13 | 2022-06-13 | Dual-frequency resonance type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221470852.3U CN217898608U (en) | 2022-06-13 | 2022-06-13 | Dual-frequency resonance type damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217898608U true CN217898608U (en) | 2022-11-25 |
Family
ID=84129702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221470852.3U Expired - Fee Related CN217898608U (en) | 2022-06-13 | 2022-06-13 | Dual-frequency resonance type damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217898608U (en) |
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2022
- 2022-06-13 CN CN202221470852.3U patent/CN217898608U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221125 |