CN210949132U - Low-frequency vibration damping device - Google Patents
Low-frequency vibration damping device Download PDFInfo
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- CN210949132U CN210949132U CN201921867247.8U CN201921867247U CN210949132U CN 210949132 U CN210949132 U CN 210949132U CN 201921867247 U CN201921867247 U CN 201921867247U CN 210949132 U CN210949132 U CN 210949132U
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Abstract
The utility model discloses a low-frequency vibration damping device, including servo drive motor, servo drive motor's output is connected with roots's fan body through the bracing piece, be equipped with the amortization air-supply line on the roots's fan body, servo drive motor and roots's fan body below all are equipped with vibration damper, vibration damper includes the protective housing, the symmetry is equipped with the fixed block in the protective housing, the one end of fixed block all is equipped with the sleeve, be equipped with the cavity in the sleeve, run through in the cavity and be equipped with the movable rod, be connected with the mounting panel between the movable rod top, be equipped with damping spring between mounting panel and the sleeve, be connected with the fixed plate between the movable rod bottom, fixed: such device simple structure, simple to operate can effectually eliminate the vibrations of gaseous production of during operation, simultaneously, can cooperate the cotton layer of amortization to carry out the amortization, simultaneously, can effectively reduce the vibration that roots's fan body and servo drive motor during operation produced.
Description
Technical Field
The utility model relates to a roots's fan damping technical field particularly, relates to a low frequency vibration damping device.
Background
The Roots blower is a kind of displacement blower, there are two three-bladed impellers relatively rotating in the space sealed by casing and wall plate, because each impeller adopts involute or epicycloid envelope, the three blades of each impeller are completely the same, and simultaneously the two impellers are completely the same, thus greatly reducing the processing difficulty, the impeller adopts numerical control equipment during processing, and ensures that the two impellers are under the condition of constant center distance, no matter where the two impellers rotate, a certain minimum clearance can be kept, so that the leakage of the gas is ensured within an allowable range.
On current roots's fan's technical condition basis, most roots's fan all lacks relevant vibration/noise reduction equipment, uses for a long time down, and inside fixed part takes place not hard up easily, breaks down easily, has certain potential safety hazard, and the noise is great when using simultaneously, influences the service environment of equipment.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the problem among the correlation technique, the utility model provides a low frequency vibration damping device to overcome the above-mentioned technical problem that current correlation technique exists.
The technical scheme of the utility model is realized like this:
a low-frequency vibration damping device comprises a servo driving motor, wherein the output end of the servo driving motor is connected with a Roots blower body through a support rod, the Roots blower body is provided with a silencing air inlet pipe, the silencing air inlet pipe comprises an outer shell, an elastic buffer layer is arranged in the outer shell, a silencing cotton layer is arranged in the elastic buffer layer, the Roots blower body is provided with an air outlet, vibration damping devices are arranged below the servo driving motor and the Roots blower body respectively, each vibration damping device comprises a protective shell, fixed blocks are symmetrically arranged in the protective shell, one ends of the fixed blocks are provided with sleeves, cavities are arranged in the sleeves, movable rods penetrate through the cavities, mounting plates are connected between the top ends of the movable rods, vibration damping springs are arranged between the mounting plates and the sleeves, and limiting rings are fixedly arranged at the bottoms of the sleeves on, the limiting device is characterized in that a connecting rod is arranged between the limiting rings, a fixed plate is connected between the bottom ends of the movable rods, and telescopic rods are symmetrically arranged below the fixed plate.
Furthermore, a fixed base plate is connected below the servo driving motor and the Roots blower body, and the vibration damping device is located on the fixed base plate.
Furthermore, a protective sealing cover is detachably arranged on the silencing air inlet pipe.
Furthermore, a silencing washer is arranged on the air outlet.
Furthermore, an elastic buffer plate is arranged below the fixing plate and at the bottom of the protective shell.
The utility model provides a low frequency vibration damping device, beneficial effect as follows:
(1) the noise reduction air inlet pipe is arranged on the Roots blower body and comprises an outer shell, an elastic buffer layer is arranged in the outer shell, a noise reduction cotton layer is arranged in the elastic buffer layer, vibration generated by gas in working can be effectively eliminated, meanwhile, noise reduction can be carried out by matching with the noise reduction cotton layer, vibration reduction devices are arranged below the servo drive motor and the Roots blower body and comprise protective shells, fixed blocks are symmetrically arranged in the protective shells, sleeves are arranged at one ends of the fixed blocks, cavities are arranged in the sleeves, movable rods penetrate through the cavities, mounting plates are connected between the top ends of the movable rods, vibration reduction springs are arranged between the mounting plates and the sleeves, limiting rings are fixedly arranged at the bottoms of the sleeves on the movable rods, connecting rods are arranged between the limiting rings, fixed plates are connected between the bottoms of the movable rods, telescopic rods are symmetrically arranged below, the power can pass through the mounting panel and transmit on the movable rod, make it descend, when descending, effect through damping spring, offset some effort, and simultaneously, the movable rod descends and also can lead to the telescopic link to push down, play the effect of further buffering, spacing ring and connecting rod are used for spacing the movable rod, such device simple structure, high durability and convenient installation, can effectually eliminate the vibrations that the during operation gas produced, and simultaneously, can cooperate the cotton layer of amortization to carry out the amortization, and simultaneously, can effectively reduce the vibration that roots's fan body and servo drive motor during operation produced.
(2) And a fixed base plate is connected below the servo driving motor and the Roots blower body, and the vibration damping device is positioned on the fixed base plate and is convenient for fixed installation and connection.
(3) The sound attenuation air inlet pipe is detachably provided with a protective sealing cover, so that the sound attenuation air inlet pipe is protected.
(4) And the air outlet is provided with a silencing gasket which plays a silencing role for the air outlet.
(5) The lower part of the fixing plate is provided with an elastic buffer plate at the bottom of the protective shell, and the elastic buffer plate plays a role in buffering and protecting the fixing plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a low-frequency vibration damping device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an intake silencer duct of a low-frequency vibration damping device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vibration damping device in a low-frequency vibration damping device according to an embodiment of the present invention.
In the figure:
1. a servo drive motor; 2. a support bar; 3. a Roots blower body; 4. a silencing air inlet pipe; 5. an outer housing; 6. an elastic buffer layer; 7. a sound-deadening cotton layer; 8. an air outlet; 9. a vibration damping device; 10. a protective shell; 11. a fixed block; 12. a sleeve; 13. a cavity; 14. a movable rod; 15. mounting a plate; 16. a damping spring; 17. a limiting ring; 18. a connecting rod; 19. a fixing plate; 20. a telescopic rod; 21. fixing a bottom plate; 22. protecting the sealing cover; 23. a noise reduction gasket; 24. an elastic buffer plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 all belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings and specific embodiments:
the first embodiment is as follows:
referring to fig. 1-3, a low-frequency vibration damping device according to an embodiment of the present invention includes a servo driving motor 1, an output end of the servo driving motor 1 is connected to a roots blower body 3 through a support rod 2, the roots blower body 3 is provided with a noise reduction air inlet pipe 4, the noise reduction air inlet pipe 4 includes an outer shell 5, an elastic buffer layer 6 is disposed in the outer shell 5, a noise reduction cotton layer 7 is disposed in the elastic buffer layer 6, an air outlet 8 is disposed on the roots blower body 3, vibration damping devices 9 are disposed below the servo driving motor 1 and the roots blower body 3, the vibration damping devices 9 include a protective shell 10, fixed blocks 11 are symmetrically disposed in the protective shell 10, sleeves 12 are disposed at one ends of the fixed blocks 11, cavities 13 are disposed in the sleeves 12, and movable rods 14 penetrate through the cavities 13, be connected with mounting panel 15 between the 14 tops of movable rod, mounting panel 15 with be equipped with damping spring 16 between the sleeve 12, be located on the movable rod 14 the fixed spacing ring 17 that is equipped with in sleeve 12 bottom, be equipped with connecting rod 18 between the spacing ring 17, be connected with fixed plate 19 between the 14 bottoms of movable rod, the symmetry of fixed plate 19 below is equipped with telescopic link 20.
Through the above scheme of the utility model, the noise reduction air inlet pipe 4 is arranged on the Roots blower body 3, the noise reduction air inlet pipe 4 comprises the outer shell 5, the elastic buffer layer 6 is arranged in the outer shell 5, the noise reduction cotton layer 7 is arranged in the elastic buffer layer 6, the vibration generated by gas in operation can be effectively eliminated, meanwhile, the noise reduction cotton layer 7 can be matched for noise reduction, the servo drive motor 1 and the lower part of the Roots blower body 3 are both provided with the vibration reduction device 9, the vibration reduction device 9 comprises the protective shell 10, the fixed block 11 is symmetrically arranged in the protective shell 10, one end of the fixed block 11 is provided with the sleeve 12, the sleeve 12 is internally provided with the cavity 13, the movable rod 14 penetrates through the cavity 13, the mounting plate 15 is connected between the top ends of the movable rods 14, the vibration reduction spring 16 is arranged between the mounting plate 15 and, the movable rod 14 is fixedly provided with limiting rings 17 at the bottom of the sleeve 12, a connecting rod 18 is arranged between the limiting rings 17, a fixed plate 19 is connected between the bottom ends of the movable rods 14, telescopic rods 20 are symmetrically arranged below the fixed plate 19, and when the movable rods are vibrated, the force is transmitted to the movable rod 14 through the mounting plate 15, causing it to descend, where, through the action of the damping spring 16, a part of the force is counteracted, meanwhile, the descending of the movable rod 14 also causes the telescopic rod 20 to be pressed down, so as to play a role of further buffering, the limiting ring 17 and the connecting rod 18 are used for limiting the movable rod 14, the device has simple structure and convenient installation, can effectively eliminate the vibration generated by gas during working, simultaneously, can cooperate the cotton layer 7 of amortization to carry out the amortization, simultaneously, can effectively reduce the vibration that roots's fan body 3 and servo drive motor 1 during operation produced.
Example two:
as shown in fig. 1-3, a fixed base plate 21 is connected below the servo drive motor 1 and the roots blower body 3, and the vibration damping device 9 is positioned on the fixed base plate 21 to facilitate the fixed installation and connection thereof; a protective sealing cover 22 is detachably arranged on the silencing air inlet pipe 4 to protect the silencing air inlet pipe 4; a silencing washer 23 is arranged on the air outlet 8, and plays a silencing role for the air outlet 8; an elastic buffer plate 24 is arranged below the fixed plate 19 and at the bottom of the protective shell 10, and plays a role in buffering and protecting the fixed plate 19.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.
In the time of practical application, when receiving the vibration, power can transmit on the movable rod 14 through mounting panel 15, make it descend, when descending, effect through damping spring 16, offset some effort, and simultaneously, movable rod 14 descends and also can lead to telescopic link 20 to push down, play the effect of further buffering, spacing ring 17 and connecting rod 18 are used for spacing movable rod 14, such device simple structure, high durability and convenient installation, can effectually eliminate the vibrations that the during operation gas produced, and simultaneously, can cooperate the cotton layer 7 of amortization to carry out the amortization, and simultaneously, can effectively reduce the vibration that roots's fan body 3 and servo drive motor 1 during operation produced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The low-frequency vibration damping device is characterized by comprising a servo driving motor (1), wherein the output end of the servo driving motor (1) is connected with a Roots blower body (3) through a support rod (2), a silencing air inlet pipe (4) is arranged on the Roots blower body (3), the silencing air inlet pipe (4) comprises a shell (5), an elastic buffer layer (6) is arranged in the shell (5), a silencing cotton layer (7) is arranged in the elastic buffer layer (6), an air outlet (8) is arranged on the Roots blower body (3), vibration damping devices (9) are arranged below the servo driving motor (1) and the Roots blower body (3), each vibration damping device (9) comprises a protective shell (10), fixed blocks (11) are symmetrically arranged in each protective shell (10), and one ends of the fixed blocks (11) are provided with sleeves (12), be equipped with cavity (13) in sleeve (12), run through in cavity (13) and be equipped with movable rod (14), be connected with mounting panel (15) between movable rod (14) top, mounting panel (15) with be equipped with damping spring (16) between sleeve (12), lie in on movable rod (14) sleeve (12) bottom is fixed and is equipped with spacing ring (17), be equipped with connecting rod (18) between spacing ring (17), be connected with between movable rod (14) the bottom fixed plate (19), fixed plate (19) below symmetry is equipped with telescopic link (20).
2. A low frequency vibration damping device according to claim 1, characterized in that a fixed base plate (21) is connected below the servo drive motor (1) and the roots blower body (3), and the damping device (9) is located on the fixed base plate (21).
3. A low frequency vibration damping device according to claim 1, characterized in that said muffling air inlet pipe (4) is removably provided with a protective sealing cover (22).
4. A low frequency vibration damping device according to claim 1, characterized in that said air outlet (8) is provided with a sound dampening gasket (23).
5. A low frequency vibration damping device according to claim 1, characterized in that an elastic damping plate (24) is provided under the fixing plate (19) at the bottom of the protective casing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867247.8U CN210949132U (en) | 2019-11-01 | 2019-11-01 | Low-frequency vibration damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867247.8U CN210949132U (en) | 2019-11-01 | 2019-11-01 | Low-frequency vibration damping device |
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| Publication Number | Publication Date |
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| CN210949132U true CN210949132U (en) | 2020-07-07 |
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| CN201921867247.8U Active CN210949132U (en) | 2019-11-01 | 2019-11-01 | Low-frequency vibration damping device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143884A1 (en) * | 2020-12-31 | 2022-07-07 | 北京科益虹源光电技术有限公司 | Vibration isolation structure, impeller rotor system for laser, and laser |
| CN114733272A (en) * | 2022-04-19 | 2022-07-12 | 江苏瑞洋安泰新材料科技有限公司 | Pulse type bag dust collector capable of reducing vibration energy consumption |
| CN114873089A (en) * | 2022-04-26 | 2022-08-09 | 核工业理化工程研究院 | Vibration isolation device, powder collecting equipment and working method |
-
2019
- 2019-11-01 CN CN201921867247.8U patent/CN210949132U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143884A1 (en) * | 2020-12-31 | 2022-07-07 | 北京科益虹源光电技术有限公司 | Vibration isolation structure, impeller rotor system for laser, and laser |
| CN114733272A (en) * | 2022-04-19 | 2022-07-12 | 江苏瑞洋安泰新材料科技有限公司 | Pulse type bag dust collector capable of reducing vibration energy consumption |
| CN114733272B (en) * | 2022-04-19 | 2024-02-06 | 江苏瑞洋安泰新材料科技有限公司 | Pulse type bag-type dust collector capable of reducing vibration energy consumption |
| CN114873089A (en) * | 2022-04-26 | 2022-08-09 | 核工业理化工程研究院 | Vibration isolation device, powder collecting equipment and working method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low-frequency vibration damping device Effective date of registration: 20230214 Granted publication date: 20200707 Pledgee: Bank of China Limited Wuhan Qingshan sub branch Pledgor: Hubei Zhongchuan Gas Co.,Ltd. Registration number: Y2023980032575 |