CN216589720U - Two-stage vibration isolation device - Google Patents
Two-stage vibration isolation device Download PDFInfo
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- CN216589720U CN216589720U CN202122914726.4U CN202122914726U CN216589720U CN 216589720 U CN216589720 U CN 216589720U CN 202122914726 U CN202122914726 U CN 202122914726U CN 216589720 U CN216589720 U CN 216589720U
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- vibration isolation
- isolation structure
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- pipe
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Abstract
The utility model relates to a two-stage vibration isolation device which comprises an inner vibration isolation structure and an outer vibration isolation structure, wherein the inner vibration isolation structure and the outer vibration isolation structure are in interference fit connection, the inner vibration isolation structure comprises an inner pipe, an inner vibration isolation block and an inner framework, the outer vibration isolation structure comprises a first outer pipe, a second outer pipe and an outer vibration isolation block, the first outer pipe is arranged outside the second outer pipe, the outer vibration isolation block is arranged between the first outer pipe and the second outer pipe, the inner pipe is arranged in the second outer pipe and is in interference connection with the second outer pipe, the inner vibration isolation block is arranged in the inner pipe, and the inner framework is arranged in the middle of the inner vibration isolation block. Through dual vibration isolation structure, inside and outside vibration isolation can design for rubber hardness or material difference to obtain better chassis control performance and NVH performance after the convenient debugging of hardness combination through the difference, and inside and outside vibration isolation structure vulcanizes the shaping alone, and the equipment is more convenient with the maintenance.
Description
Technical Field
The utility model relates to the field of automobile assembly, in particular to a secondary vibration isolation device.
Background
The vibration isolation device is widely applied to an automobile chassis suspension system and a power assembly suspension system, mainly has the functions of attenuating vibration and noise transmitted to an automobile by power assembly excitation, transmission system excitation, road surface input excitation and the like, and plays a role in bearing.
The common connection vibration isolation device in the prior art comprises a bushing and a metal framework, wherein the bushing mainly comprises an outer pipe, an inner core and a rubber body, the outer pipe, the inner core and the rubber body are vulcanized into a whole, and the bushing is pressed into the metal framework through interference fit. The power assembly support is connected with the lining, and the vehicle body or the auxiliary frame is connected with the metal framework through bolts. The traditional structure is used more extensively on traditional fuel vehicle, can keep apart the vibration that the power assembly transmitted the automobile body, but on new energy automobile, but be difficult to solve some because less power assembly noise shields protruding outstanding motor high frequency sound such as squeaking after, separate the effect poor, secondary vibration isolation mechanism can promote the vibration isolation performance through secondary vibration isolation, but two-layer vibration isolation vulcanization of this kind of structure becomes integrative, can't change, and interior outer vibration isolation structure can't make different rubber materials moreover.
Disclosure of Invention
The utility model provides a secondary vibration isolation device, aiming at solving the problems that the existing vibration isolation device has poor vibration isolation effect and the inner and outer vibration isolation structures cannot use the same rubber material.
The utility model provides a secondary vibration isolation device which comprises an inner vibration isolation structure and an outer vibration isolation structure, wherein the inner vibration isolation structure and the outer vibration isolation structure are in interference fit connection, the inner vibration isolation structure comprises an inner pipe, an inner vibration isolation block and an inner framework, the outer vibration isolation structure comprises a first outer pipe, a second outer pipe and an outer vibration isolation block, the first outer pipe is arranged outside the second outer pipe, the outer vibration isolation block is arranged between the first outer pipe and the second outer pipe, the inner pipe is arranged in the second outer pipe and is in interference connection with the second outer pipe, the inner vibration isolation block is arranged in the inner pipe, and the inner framework is arranged in the middle of the inner vibration isolation block.
As a further improvement of the utility model, the middle part of the inner framework is provided with a through hole for installing a bolt.
As a further improvement of the utility model, the cross-sectional shape of the inner vibration isolation block is circular, and/or splayed, and/or X-shaped, and/or straight.
As a further improvement of the utility model, the outer vibration isolation block is provided with a plurality of openings for meeting the rigidity requirements in different directions.
As a further improvement of the present invention, the materials of the outer and inner vibration-damping blocks are the same or different.
As a further improvement of the present invention, the first outer tube, the second outer tube, and the outer vibration isolating block are integrally molded by vulcanization.
As a further improvement of the utility model, the inner pipe, the inner vibration isolation block and the inner framework are integrally formed by vulcanization.
As a further improvement of the utility model, the secondary vibration isolation device is pressed into a suspension, the suspension is connected with the power assembly through a bracket, and one end of the suspension is connected with the auxiliary frame through a bolt.
The utility model has the beneficial effects that: through dual vibration isolation structure, inside and outside vibration isolation can design for rubber hardness or material difference to obtain better chassis control performance and NVH performance after the convenient debugging of hardness combination through the difference, and inside and outside vibration isolation structure vulcanizes the shaping alone, and the equipment is more convenient with the maintenance.
Drawings
FIG. 1 is an overall view of the present invention;
fig. 2 is a schematic view of the device of the present invention after press-fitting.
Detailed Description
Reference numerals: 1-inner framework, 2-second outer tube, 3-first outer tube, 4-inner tube, 5-outer vibration isolation block, 6-inner vibration isolation block, 7-hole, 8-suspension, 9-auxiliary frame, 10-power assembly and 11-through hole.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-2, the present invention provides a two-stage vibration isolation device, which includes an inner vibration isolation structure and an outer vibration isolation structure, wherein the inner vibration isolation structure and the outer vibration isolation structure are connected in an interference fit manner, the inner vibration isolation structure includes an inner tube 4, an inner vibration isolation block 6 and an inner framework 1, the outer vibration isolation structure includes a first outer tube 3, a second outer tube 2 and an outer vibration isolation block 5, the first outer tube 3 is disposed outside the second outer tube 2, the outer vibration isolation block 5 is disposed between the first outer tube 3 and the second outer tube 2, the inner tube 4 is disposed inside the second outer tube 2 and is connected with the second outer tube 2 in an interference manner, the inner vibration isolation block 6 is disposed inside the inner tube 4, and the inner framework 1 is disposed in the middle of the inner vibration isolation block 6.
As an embodiment of the present invention, a through hole 11 for mounting a bolt is provided at the middle of the inner frame 1.
As an embodiment of the present invention, the cross-sectional shape of the inner vibration-isolating block 6 is circular, and/or splayed, and/or X-shaped, and/or straight.
As another embodiment of the present invention, the outer vibration-isolating block 5 is provided with a plurality of openings 7 for meeting the requirements of rigidity in different directions.
As another embodiment of the present invention, the materials of the outer vibration isolation block 5 and the inner vibration isolation block 6 are the same or different.
As another embodiment of the present invention, the first outer tube 3, the second outer tube 2, and the outer vibration isolating block 5 are integrally molded by vulcanization.
In another embodiment of the present invention, the inner tube 4, the inner vibration insulating block 6, and the inner frame 1 are integrally molded by vulcanization.
As another embodiment of the utility model, the secondary vibration isolation device is pressed into a suspension 8, the suspension 8 is connected with a power assembly 10 through a bracket, and one end of the suspension 8 is connected with a subframe 9 through a bolt.
The utility model provides a secondary vibration isolation device which comprises an inner vibration isolation structure and an outer vibration isolation structure, wherein the inner vibration isolation structure and the outer vibration isolation structure are pressed together in an interference fit manner to realize secondary vibration isolation. The inner vibration isolation structure comprises the inner pipe 4, the inner vibration isolation block 6 and the inner framework 1, the inner pipe 4, the inner vibration isolation block 6 and the inner framework 1 are vulcanized into a whole, and the inner vibration isolation block 6 can be designed into different structures, such as a splayed structure, an X-shaped structure or a straight structure, so as to meet different rigidity requirements, and can also be made into a solid structure. The outer vibration isolation structure comprises a first outer pipe 3, a second outer pipe 2 and an outer vibration isolation block 5, wherein the first outer pipe 3, the second outer pipe 2 and the outer vibration isolation block 5 are vulcanized into a whole, the whole operation can be realized during assembly and disassembly, the parts can be replaced independently without being replaced integrally, and the operation is more convenient. The outer vibration isolation block 5 is provided with a plurality of the openings 7, so that the requirements of different directions on the structural rigidity are met, and in the embodiment of the utility model, four openings 7 are arranged. Two-stage vibration isolation is realized through the matching of the inner vibration isolation block and the outer vibration isolation block, and when the power assembly 10 operates, impact force is reduced through the outer vibration isolation block 5 and the inner vibration isolation block 6, so that the stability of a chassis during the operation of an automobile is ensured to the maximum extent. The outer vibration isolation block 5 and the inner vibration isolation block 6 can be made of different rubber materials and have different hardness, so that the requirements of ensuring the operation performance and the vibration isolation performance can be met, for example, the inner vibration isolation block 6 is made of rubber with the hardness of 65 degrees, the outer vibration isolation block 5 is made of rubber with the hardness of 60 degrees, the inner vibration isolation block 6 can also be made of EPDM, and the outer vibration isolation block 5 is made of a combination of natural rubber. The inner tube 4 can be made of hard plastic to meet the requirement of light weight.
This second grade vibration isolation mounting pressure equipment is in suspension 8, suspension 8 pass through the support with power assembly 10 is connected, the one end of suspension 8 pass through the bolt with sub vehicle frame 9 is connected, makes power assembly 10 is when the operation, sub vehicle frame 9's vibrations reduce, and is more stable when the automobile body traveles.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (8)
1. The utility model provides a two-stage vibration isolation device, its characterized in that, includes interior vibration isolation structure and outer vibration isolation structure, interior vibration isolation structure and outer vibration isolation structure interference fit are connected, interior vibration isolation structure includes inner tube, interior vibration isolation piece and endoskeleton, outer vibration isolation structure includes first outer tube, second outer tube and outer vibration isolation piece, first outer tube is located the outside of second outer tube, outer vibration isolation piece is located between first outer tube and the second outer tube, the inner tube is located in the second outer tube and with second outer tube interference is connected, interior vibration isolation piece is located inside the inner tube, the middle part of interior vibration isolation piece is equipped with the endoskeleton.
2. The secondary vibration isolation device according to claim 1, wherein a through hole for mounting a bolt is provided in the middle of the inner frame.
3. A secondary vibration isolation device according to claim 2, wherein the cross-sectional shape of the inner vibration isolation block is circular, and/or splayed, and/or X-shaped, and/or straight.
4. A secondary vibration isolation apparatus according to claim 3, wherein the outer vibration isolation block is provided with a plurality of openings for satisfying the rigidity requirements in different directions.
5. The secondary vibration isolation device of claim 4 wherein the materials of the outer and inner vibration isolation blocks are the same or different.
6. The secondary vibration isolation device according to claim 5, wherein the first outer tube, the second outer tube and the outer vibration isolation block are integrally formed by vulcanization.
7. The secondary vibration isolation device according to claim 6, wherein the inner tube, the inner vibration isolation block and the inner frame are integrally formed by vulcanization.
8. The secondary vibration isolation apparatus of claim 7, wherein the secondary vibration isolation apparatus is press-fitted into a suspension, the suspension is connected to the power unit through a bracket, and one end of the suspension is connected to the subframe through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122914726.4U CN216589720U (en) | 2021-11-25 | 2021-11-25 | Two-stage vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122914726.4U CN216589720U (en) | 2021-11-25 | 2021-11-25 | Two-stage vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589720U true CN216589720U (en) | 2022-05-24 |
Family
ID=81650350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122914726.4U Active CN216589720U (en) | 2021-11-25 | 2021-11-25 | Two-stage vibration isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589720U (en) |
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2021
- 2021-11-25 CN CN202122914726.4U patent/CN216589720U/en active Active
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