CN210949644U - Dynamic vibration absorber - Google Patents
Dynamic vibration absorber Download PDFInfo
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- CN210949644U CN210949644U CN201921577282.6U CN201921577282U CN210949644U CN 210949644 U CN210949644 U CN 210949644U CN 201921577282 U CN201921577282 U CN 201921577282U CN 210949644 U CN210949644 U CN 210949644U
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- mass block
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- rubber
- vibration absorber
- dynamic vibration
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Abstract
The utility model discloses a dynamic vibration absorber, which comprises a mass block, wherein the mass block comprises a first mass block and a second mass block which are arranged in a split manner; the second mass block is detachably fixed on the first mass block; the rubber is fixedly connected with the first mass block in a vulcanization mode; the mounting rod is inserted in the rubber, and the mounting rod is vulcanized and fixed with the rubber. The utility model provides a dynamic vibration absorber changes the bump leveller frequency bandwidth through the quality that changes the quality piece, saves time for installation and debugging.
Description
Technical Field
The utility model belongs to the technical field of the auto parts and specifically relates to a dynamic vibration absorber is related to.
Background
A dynamic vibration absorber is an important part of an automobile, and refers to an apparatus for absorbing vibration energy of an object using a resonance system to reduce the vibration of the object. The principle is that a mass spring resonance system is added to a vibrating object, and the reaction force generated by the additional system during resonance can reduce the vibration of the vibrating object. The vibration frequency of the vibration object and the vibration absorber is determined by two parameters of the rigidity of rubber on the vibration absorber and the mass of the mass block. The existing dynamic vibration absorber changes the rigidity of the vibration absorber by vulcanizing different rubber materials, thereby changing the frequency bandwidth range, having long manufacturing time and lower efficiency.
For example, a "dynamic vibration absorber and automobile" disclosed in chinese patent literature, publication No. CN 206972812U, includes a mounting base, a rubber block, a mass, and a guide rod; two ends of the rubber block are respectively fixedly connected with the mounting base and the mass block; one end of the guide rod is fixedly connected with the mounting base, the other end of the guide rod penetrates through the hole in the mass block, and the guide rod is located on the outer side of the rubber block and perpendicular to the mounting base and the mass block so as to limit deflection vibration of the mass block. Therefore, the deflection vibration of the mass block can be greatly limited, and the natural frequency of the dynamic vibration absorber cannot be influenced, so that better vibration and noise reduction effects can be achieved. However, when the vibration frequency of the vibrating object is changed, the stiffness of the vibration absorber still needs to be changed to change the frequency bandwidth range, and the installation and debugging are complicated.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art and change the frequency bandwidth scope through changing the bump leveller rigidity, the manufacturing time is long, and the lower problem of efficiency provides a dynamic vibration absorber, changes bump leveller frequency bandwidth through the quality that changes the quality piece, saves time for the installation and debugging.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dynamic vibration absorber comprises a mass block, wherein the mass block comprises a first mass block and a second mass block which are arranged in a split mode; the second mass block is detachably fixed on the first mass block; the rubber is fixedly connected with the first mass block in a vulcanization mode; the mounting rod is inserted in the rubber, and the mounting rod is vulcanized and fixed with the rubber.
The vibration absorber is used for reducing vibration, the frequency of the vibration absorber is mainly determined by the rigidity of rubber and the mass of the mass block, and if the frequency of the vibration absorber is changed, the rigidity of the rubber or the mass of the mass block needs to be changed. The mass block is divided into a first mass block and a second mass block, the first mass block is vulcanized and fixed with rubber, and the second mass block is detachably connected with the first mass block, so that the frequency bandwidth of the vibration absorber can be changed by changing the mass of the second mass block, the second mass block is only connected with the first mass block, the second mass block is detachably connected with the first mass block, the second mass block is convenient and quick to install and replace, and time is saved for installation and debugging. Finally, the vibration absorber is arranged on a supporting arm of the automobile, so that the vibration of the power assembly is attenuated, the NVH performance of the automobile is improved, and the automobile is more comfortable to use; the installation pole is used for connecting the bump leveller and the device that needs the damping, will install the pole and peg graft in rubber and vulcanize fixedly with rubber, has strengthened the fixed area between rubber and the installation pole, improves the installation firmness between rubber and the installation pole.
Preferably, the second mass block is provided with a mass adjusting hole.
The vibration absorber changes the frequency bandwidth of the vibration absorber by replacing the second mass block, the mass of the second mass block can be changed conveniently under the condition that the maximum size of the second mass block is not changed due to the arrangement of the mass adjusting holes, and the mass of different second mass blocks can be determined according to the size of the mass adjusting holes. In addition, when the mounting position of the mounting rod exceeds the mounting surface on the first mounting hole, the arrangement of the mass adjusting hole on the second mass block can ensure that the first mass block and the second mass block can still be attached together, and the projecting part of the mounting rod is arranged in the mass adjusting hole at the moment, so that the mounting firmness between the first mass block and the second mass block is ensured.
Preferably, the first mass block is provided with a rubber hole, and the rubber is vulcanized and fixed in the rubber hole.
Fix the rubber vulcanization on the vulcanization through-hole of first quality piece, can strengthen the installation firmness between rubber and the first quality piece, effectively avoided installation pole and first quality piece lug connection simultaneously, prevent that it from colliding when the vibration and causing the noise, can also improve the shock-absorbing function of bump leveller.
Preferably, the rubber is arranged in a column shape, and a groove structure is arranged on the end face of the rubber.
Set up rubber into the column and be convenient for vulcanize at rubber and fix in first quality piece, be provided with the groove structure with the rubber terminal surface and reduced the material, effectively prevent that the unevenness of rubber terminal surface from causing to have the clearance between first quality piece and the second quality piece to lead to connecting unstably.
Preferably, a first connection hole is formed in the first mass block, and the first connection hole penetrates through the upper end face and the lower end face of the first mass block.
The first connecting holes are used for being connected with the second mass block, are axially arranged on the first mass block, penetrate through the upper end face and the lower end face of the first mass block, are convenient for installation of the first mass block, are at least two in number and are symmetrically arranged along the center of the central point, and therefore the first mass block is guaranteed to be stably connected with the second mass block.
Preferably, a second connecting hole is formed in a position corresponding to the second mass block, and the second connecting hole is of a step structure.
The second connecting hole corresponds the setting with first connecting hole on the first quality piece, and the second connecting hole sets up to the stair structure, and the head of coupling assembling is convenient for place in the setting of stair structure, prevents that the coupling assembling head from protruding on the terminal surface of second quality piece, causes other parts in the coupling assembling head collides the car and causes the trouble when the vibration, can also strengthen the installation firmness between coupling assembling and the second quality piece.
Preferably, the connecting assembly is used for realizing detachable connection of the first mass block and the second mass block and comprises a connecting column and a gasket which are integrally arranged.
Coupling assembling is used for connecting first quality piece and second quality piece, first quality piece is connected through the spliced pole soon with the second quality, here the spliced pole sets up to connecting bolt, the setting of spliced pole has still effectively prevented the beat vibration of second quality piece when the bump leveller is worked, furthermore, set up the gasket on the spliced pole, can increase the area of contact on the step face of spliced pole and second quality piece, reduce pressure, can also prevent that coupling assembling is not hard up, it does not receive the damage to protect second quality piece and connecting bolt, and set up spliced pole and gasket integration and effectively prevented that the gasket is lost when changing the second quality piece and cause inconvenience.
Therefore, the utility model discloses following beneficial effect has:
(1) the mass of the second mass block is improved and changed to change the frequency bandwidth of the vibration absorber, so that the installation and debugging of the vibration absorber are facilitated;
(2) the second mass block is provided with a mass adjusting hole, so that different second mass blocks can adjust the mass conveniently;
(3) rubber is vulcanized and fixed in the rubber hole of the first mass block, so that noise generated by collision between the first mass block and the mounting rod is reduced, and meanwhile, the damping function of the vibration absorber is enhanced;
(4) the arrangement of the connecting column can not only connect the first mass block and the second mass block, but also prevent the deflection vibration of the second mass block.
Drawings
Fig. 1 is a schematic structural view of a dynamic vibration absorber;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
FIG. 3 is a schematic structural view of a second mass;
fig. 4 is a schematic diagram of an application structure of the dynamic vibration absorber;
in the figure: 1. the vibration absorber 2, the mounting rod 3, the first mass block 301, the rubber hole 302, the first connecting hole 4, the second mass block 401, the second connecting hole 402, the mass adjusting hole 5, the connecting assembly 501, the gasket 502, the connecting column 6, the rubber 7, the bracket 8 and the hydraulic suspension.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example 1:
in embodiment 1 shown in fig. 1 and 2, a dynamic vibration absorber includes a mass block including a first mass block 3 and a second mass block 4 which are separately arranged; the second mass block 4 is detachably fixed on the first mass block 3; the rubber 6 is fixedly connected with the first mass block 3 in a vulcanization mode; the mounting rod 2 is inserted in the rubber 6, and the mounting rod 2 is vulcanized and fixed with the rubber 6.
The dynamic vibration absorber mainly comprises a mass block, rubber 6 and a mounting rod 2, the vibration absorber 1 is mounted on a vibrating object, and the vibration of the vibrating object can be reduced by the reaction force generated during resonance, wherein the vibration frequency of the vibration absorber 1 is mainly determined by the rigidity of the rubber 6 in the vibration absorber 1 and the mass of the mass block. The mass block comprises a first mass block 3 and a second mass block 4 which are arranged in a split mode, the first mass block 3 is fixedly connected with rubber 6, a mounting rod 2 is inserted into the rubber 6, the vibration absorber 1 is mounted on a vibrating object through the mounting rod 2, the basic function of vibration absorption of the vibration absorber 1 is achieved, due to the fact that the vibration frequencies of the vibrating object are different, the frequency bandwidth of the vibration absorber 1 used for vibration absorption is different, the rigidity of the rubber 6 or the mass of the mass block needs to be changed when the frequency bandwidth of the vibration absorber 1 needs to be changed, the frequency bandwidth of the vibration absorber 1 is convenient to change by changing the mass of the mass block due to the arrangement of the second mass block 4, and time is saved for mounting and debugging. The second mass 4 is detachably connected to the first mass 3, facilitating the replacement of the second mass 4.
Example 2:
in embodiment 2 shown in fig. 3, the technical solution of embodiment 2 is substantially the same as that of embodiment 1, except that: the second mass block 4 is provided with a mass adjusting hole 402, the mass adjusting hole 402 is arranged to distinguish the second mass blocks 4 with different masses, the mass of the second mass block 4 is different according to the size of the aperture, and the larger the aperture of the mass adjusting hole 402 is, the smaller the mass of the second mass block 4 is; this allows the second mass 4 to change its mass without changing its maximum size, facilitating the mounting of the second mass 4.
Example 3:
the embodiment 3 is basically the same as the embodiment 1, except that: the first mass block 3 is sleeved on the rubber 6, a rubber hole 301 is formed in the first mass block 3, the rubber 6 is arranged in a columnar shape, the rubber 6 is vulcanized and fixed in the rubber hole 301, and the height of the rubber 6 is consistent with the thickness of the first mass block 3. Such mounting means has effectively strengthened the installation firmness between rubber 6 and the first quality piece 3, has avoided installation pole 2 and the direct connection of first quality piece 3 simultaneously, and the collision caused the noise when vibrating, improves the shock-absorbing function of bump leveller 1.
In addition, be provided with the groove structure on the terminal surface of rubber 6, saved the material, first quality piece 3 is in the same place with the laminating of second quality piece 4, and the height of rubber 6 is unanimous with the thickness of first quality piece 3, and consequently the groove structure on the terminal surface of rubber 6 is provided with and does benefit to and prevents that 6 terminal surface irregularities of rubber from causing the laminating of first quality piece 3 and second quality piece 4 to be firm to lead to producing the noise when the vibration.
Example 4:
the embodiment 4 is basically the same as the embodiment 1, except that: the first mass block 3 is fixedly connected with the second mass block 4 through the connecting assembly 5, the first connecting hole 302 is arranged on the first mass block 3, the second connecting hole 401 is arranged on the second mass block 4, the connecting assembly 5 comprises a connecting column 502 and a gasket 501, the connecting column 502 is a connecting bolt, a screw rod of the connecting bolt penetrates through the first connecting hole 302 and the second connecting hole 401 to respectively fix the first mass block 3 and the second mass block 4, the second connecting hole 401 on the second mass block 4 is of a step structure, the head of the connecting bolt and the gasket 501 are both arranged on a step surface to prevent the connecting bolt from protruding to collide other components in an automobile to cause faults when vibrating, the gasket 501 is arranged between the head of the connecting bolt and the step surface to increase the contact area between the head of the connecting bolt and the step surface of the second mass block 4, reduce pressure and prevent the connecting assembly 5 from loosening, protecting the second mass 4 and the connecting bolts. In addition, the gasket 501 and the connecting column 502 are integrally arranged, so that the inconvenience caused by the loss of the gasket 501 when the second mass block 4 is replaced is effectively prevented.
Example 5:
as shown in fig. 4, in embodiment 5, embodiment 5 is an application example of the present invention: the vibration absorber 1 is arranged on a supporting arm 7, an installation rod 2 on the vibration absorber 1 is connected with the supporting arm 7, a vibration absorber installation hole is arranged on the supporting arm, a fixing part for fixing the installation rod is arranged in the vibration absorber installation hole, the other end of the installation rod is connected to the fixing part in an inserting mode to realize the installation of the vibration absorber 1 and the supporting arm 7, the supporting arm 7 is used for connecting a hydraulic suspension 8 with a movable assembly, a cavity structure is arranged in the supporting arm 7, the movable assembly is arranged in the cavity, after the supporting arm 7 is connected with the movable assembly, when an automobile is started, the movable assembly vibrates, the vibration is transmitted to the supporting arm 7, the supporting arm also vibrates, the supporting arm 7 has a vibration peak value at a certain frequency, the vibration absorber 1 is used for attenuating the vibration on the supporting arm 7, when the vibration frequency is different, the vibration absorber does not need to be replaced, the frequency bandwidth range of the vibration absorber can be changed as long as, thereby realizing the function of damping vibration.
The above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (7)
1. A dynamic vibration absorber is characterized by comprising,
the mass block comprises a first mass block (3) and a second mass block (4) which are arranged in a split manner;
the second mass block (4) is detachably fixed on the first mass block (3);
the rubber (6), the rubber (6) is vulcanized and fixedly connected with the first mass block (3);
the mounting rod (2) is inserted into the rubber (6), and the mounting rod (2) is vulcanized and fixed with the rubber (6).
2. The dynamic vibration absorber according to claim 1, wherein mass adjusting holes (402) are provided in said second mass (4).
3. A dynamic vibration absorber according to claim 1, wherein said first mass (3) is provided with rubber holes (301), and said rubber (6) is vulcanized and fixed in said rubber holes (301).
4. The dynamic vibration absorber according to claim 1, wherein said rubber (6) is provided in a cylindrical shape, and an annular groove structure is provided on an end surface of said rubber (6).
5. The dynamic vibration absorber according to claim 1, wherein a first connection hole (302) is provided in said first mass (3), said first connection hole (302) penetrating upper and lower end surfaces of the first mass.
6. The dynamic vibration absorber according to claim 1, wherein a second connecting hole (401) is provided at a position corresponding to said second mass (4), said second connecting hole (401) being provided in a stepped configuration.
7. The dynamic vibration absorber according to any of claims 1-6, further comprising a connecting member (5) for removably connecting the first mass (3) to the second mass (4), said connecting member (5) comprising an integrally formed connecting post (502) and spacer (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577282.6U CN210949644U (en) | 2019-09-20 | 2019-09-20 | Dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577282.6U CN210949644U (en) | 2019-09-20 | 2019-09-20 | Dynamic vibration absorber |
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| Publication Number | Publication Date |
|---|---|
| CN210949644U true CN210949644U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577282.6U Active CN210949644U (en) | 2019-09-20 | 2019-09-20 | Dynamic vibration absorber |
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| CN (1) | CN210949644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253684A (en) * | 2020-09-10 | 2021-01-22 | 中国汽车技术研究中心有限公司 | Torsion-resistant pull rod suspension with quick-adjustment type dynamic vibration absorber |
-
2019
- 2019-09-20 CN CN201921577282.6U patent/CN210949644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253684A (en) * | 2020-09-10 | 2021-01-22 | 中国汽车技术研究中心有限公司 | Torsion-resistant pull rod suspension with quick-adjustment type dynamic vibration absorber |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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