CN209454966U - A kind of column type double-layer shell structure with vibrating isolation system - Google Patents
A kind of column type double-layer shell structure with vibrating isolation system Download PDFInfo
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- CN209454966U CN209454966U CN201920014309.4U CN201920014309U CN209454966U CN 209454966 U CN209454966 U CN 209454966U CN 201920014309 U CN201920014309 U CN 201920014309U CN 209454966 U CN209454966 U CN 209454966U
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- isolation system
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Abstract
A kind of column type double-layer shell structure with vibrating isolation system, is related to device for vibration insutation technical field, it includes cabinet and vibration isolator, and cabinet includes outer shell and inner shell, is connected between outer shell and inner shell by vibration isolator.This column type double-layer shell structure with vibrating isolation system reduces gear housing vibration noise by using the structure of vibration isolator 2 is arranged between double Shell, and carries out vibration isolation mainly for gear driving frequency, has important meaning to the concealment for improving naval vessels.
Description
Technical field:
The utility model relates to device for vibration insutation technical fields, and in particular to a kind of column type double Shell with vibrating isolation system
Structure.
Background technique:
For naval vessels as the waterborne of most threatening power, Underwater Battery equipment, concealment is the principal element of its fighting capacity.Due to
Sound wave propagates that energy loss is small, and operating distance is remote under water, and Sound stealth becomes the important requirement of ship stealth.For gear-box
Speech, driving frequency is single, is easily identified by sonar.Therefore, vibration and noise isolation are carried out especially for gear train assembly
It is important.
The aircraft bay section such as submarine for the planetary gear system containing radial symmetric has limit for length's double cylindrical shell body structure
It is typical structure type.And between existing double cylindrical shell, usually all using the son knot such as a certain number of plate floors, supporting plate
The composite damping shell structure of structure or shell inner surface arrangement sound-absorbing material.Though having certain vibration isolating effect, limitation.
In addition, existing vibration isolation mode mainly using elasticity installation vibration isolation, that is, will utilize case between mechanical equipment and foundation structure
Vibration isolator is arranged between body and basis to reduce the vibration that driving source is transmitted in foundation structure, vibration isolating effect is poor.
Utility model content:
The purpose of this utility model is to overcome above-mentioned the shortcomings of the prior art places, and provide a kind of band vibration isolation
The column type double-layer shell structure of system, it reduces the vibration noise of radial symmetric structure transmission system.
The technical solution adopted in the utility model are as follows: a kind of column type double-layer shell structure with vibrating isolation system, including case
Body and vibration isolator, cabinet include outer shell and inner shell, are connected between outer shell and inner shell by vibration isolator.
The vibration isolator includes sleeve, rubber-mental ring and mandrel, and sleeve is connect with inner shell, mandrel and outer shell
Body connection, arranges rubber-mental ring between mandrel and sleeve.
The outer shell and inner shell is column type shell structure.
The beneficial effects of the utility model are: this column type double-layer shell structure with vibrating isolation system, by using double
The structure of arrangement vibration isolator is between layer shell to reduce gear housing vibration noise, and shakes mainly for gear driving frequency
Dynamic isolation has important meaning to the concealment for improving naval vessels.
Detailed description of the invention:
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model partial enlarged view.
Specific embodiment:
Referring to each figure, a kind of column type double-layer shell structure with vibrating isolation system, including cabinet and vibration isolator 2, cabinet packet
Outer shell 1 and inner shell 3 are included, is connected between outer shell 1 and inner shell 3 by vibration isolator 2.The vibration isolator 2
Including sleeve 201, rubber-mental ring 202 and mandrel 203, sleeve 201 is connect with inner shell 3, mandrel 203 and outer shell 1
Rubber-mental ring 202 is arranged in connection between mandrel 203 and sleeve 201.The outer shell 1 and inner shell 3 is cylinder
Sandwich type element structure.
Be used to support gear train assembly by using the double-deck column type shell, and inner shell 3 and outer double Shell 1 it
Between using be evenly arranged fair amount and number of rows rubber material vibration isolator 2 carry out vibration damping, vibration isolator mainly by sleeve 201,
Rubber-mental ring 202 and mandrel 203 form.Sleeve 201 is connected with the vibration isolator of inner shell 3, mandrel 203 and outer shell
1 is connected, and arranges that rubber-mental ring 202 carries out vibration damping between sleeve 201 and mandrel 203；Furthermore fixed by the axial direction of mandrel 203
Position design is to avoid 202 axial float of rubber-mental ring.The double Shell vibrating isolation system takes passive absorbing, mainly for gear
Engagement excitation carries out vibration isolation, can effectively reduce the vibration noise of cabinet.
On the inside of mandrel 203 containing axially position to avoid rubber-mental ring 202 to central axial play, contain on the outside of mandrel 203
Fixed end cover structure is with outer shell 1 to avoid the axial float outward of rubber-mental ring 202.
To decouple all directions vibration shape of the vibrating isolation system, according to the position of centre of gravity of drivetrain components, by vibration isolator 2
It installs and is calculated as the axial two sides for being distributed in center of gravity.To avoid input, output shaft turns frequency, each gear turns frequency and gear mesh frequency
For foundation, determine that the design intrinsic frequency of gear-box is 38Hz.According to rotatable parts quality 65335kg, radial direction can be calculated
Global stiffness is 3.72E+09N/m.In order to be arranged single vibration isolator rigidity value in zone of reasonableness, 48*12 vibration isolation is used altogether
Device, the radial rigidity of single vibration isolator are 6.47E+06N/m, i.e., 12 row, each 6 row of center of gravity or so, every row circumferentially uniformly divide altogether
48 vibration isolators of cloth can be calculated according to design intrinsic frequency and gear mesh frequency, the vibration of frequency nibbled for the transmission system
Dynamic isolation effect is 12dB or so.The double Shell vibrating isolation system structure uses passive absorbing, generates from box house by gear
Vibrational excitation be isolated, can effectively reduce the vibration noise of transmission system.
In conclusion this column type double-layer shell structure with vibrating isolation system by using between double Shell arrangement every
The structure of vibration device 2 carries out vibration isolation mainly for gear driving frequency to reduce gear housing vibration noise, to raising warship
The concealment of ship has important meaning.
Claims (2)
1. a kind of column type double-layer shell structure with vibrating isolation system, it is characterised in that: including cabinet and vibration isolator (2), cabinet
Including outer shell (1) and inner shell (3), connected between outer shell (1) and inner shell (3) by vibration isolator (2), every
Vibration device (2) includes sleeve (201), rubber-mental ring (202) and mandrel (203), and sleeve (201) is connect with inner shell (3), core
Axis (203) is connect with outer shell (1), arranges rubber-mental ring (202) between mandrel (203) and sleeve (201).
2. a kind of column type double-layer shell structure with vibrating isolation system according to claim 1, it is characterised in that: described
Outer shell (1) and inner shell (3) are column type shell structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014309.4U CN209454966U (en) | 2019-01-05 | 2019-01-05 | A kind of column type double-layer shell structure with vibrating isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014309.4U CN209454966U (en) | 2019-01-05 | 2019-01-05 | A kind of column type double-layer shell structure with vibrating isolation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209454966U true CN209454966U (en) | 2019-10-01 |
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ID=68043737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920014309.4U Active CN209454966U (en) | 2019-01-05 | 2019-01-05 | A kind of column type double-layer shell structure with vibrating isolation system |
Country Status (1)
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|---|---|
| CN (1) | CN209454966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533244A (en) * | 2019-01-05 | 2019-03-29 | 中国船舶重工集团公司第七0三研究所 | A kind of column type double-layer shell structure with vibrating isolation system |
-
2019
- 2019-01-05 CN CN201920014309.4U patent/CN209454966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533244A (en) * | 2019-01-05 | 2019-03-29 | 中国船舶重工集团公司第七0三研究所 | A kind of column type double-layer shell structure with vibrating isolation system |
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