CN108167377B - vibration isolator - Google Patents
vibration isolator Download PDFInfo
- Publication number
- CN108167377B CN108167377B CN201711401928.0A CN201711401928A CN108167377B CN 108167377 B CN108167377 B CN 108167377B CN 201711401928 A CN201711401928 A CN 201711401928A CN 108167377 B CN108167377 B CN 108167377B
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- mounting
- vibration
- plate
- support column
- base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses vibration isolators, which belong to the technical field of machinery and comprise an installation part, a base and a plurality of vibration isolation parts, wherein the vibration isolation parts are respectively fixed between the installation part and the base at intervals, the installation part, the base and all the vibration isolation parts are rigid structural members, each vibration isolation part comprises a support column, a second support column and a mass block, for any vibration isolation parts, the mass of the support column and the mass of the second support column are smaller than that of the mass block, a end of the support column is fixedly arranged on the installation part, the other end of the support column is fixedly arranged on the mass block, a end of the second support column is fixedly arranged on the base, and the other end of the second support column is fixedly arranged on the mass block.
Description
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to vibration isolators.
Background
During operation, various devices generate vibration with different degrees and frequencies, and the vibration can cause mutual influence among the devices, generate disturbing noise and even cause certain damage to the devices.
In order to avoid the above problems, it is common to mount vibration source equipment (equipment generating vibration) on a vibration isolator to block or attenuate the transmission of vibration through the vibration isolator, thereby performing the vibration isolation function. The common vibration isolators are generally rubber vibration isolators, air spring vibration isolators and the like, and the vibration isolators utilize the elasticity of the vibration isolators to convert the connection mode between the vibration source equipment and other equipment into elastic connection, so that the vibration generated by the vibration source equipment is absorbed, and the vibration isolation effect is achieved.
Then, since the vibration isolators convert the connection mode between the vibration source equipment and other equipment into elastic connection, the installation rigidity between the vibration source equipment and other equipment is reduced, and the higher installation design requirements of cannot be met.
Disclosure of Invention
In order to solve the problem that the mounting rigidity of the vibration isolator is reduced, the embodiment of the invention provides vibration isolators, and the technical scheme is as follows:
the embodiment of the invention provides vibration isolators which comprise a mounting part, a base and a plurality of vibration isolation parts, wherein the vibration isolation parts are respectively fixed between the mounting part and the base at intervals, the mounting part, the base and all the vibration isolation parts are rigid structural members, each vibration isolation part comprises a th supporting column, a second supporting column and a mass block, for any vibration isolation parts, the mass of the th supporting column and the mass of the second supporting column are smaller than that of the mass block, the end of the th supporting column is fixedly arranged on the mounting part, the other end of the th supporting column is fixedly arranged on the mass block, the end of the second supporting column is fixedly arranged on the base, and the other end of the second supporting column is fixedly arranged on the mass block.
In implementation manners of the present invention, mounting flanges are provided at ends of the support column and the second support column, the support column is fixedly mounted at through the corresponding mounting flange and the mounting portion, and the second support column is fixedly mounted at through the corresponding mounting flange and the base.
In another implementations of the invention, the mounting portion includes a mounting plate and a mounting bracket for mounting the vibration source equipment, all of the support posts are fixed to the same side of the mounting plate, and the mounting bracket is fixed to the other side of the mounting plate.
In still another implementation modes of the present invention, the mounting bracket includes a base plate, a supporting plate, and a connecting arm, wherein the side of the base plate and the other side of the mounting plate are fixedly mounted at the beginning of , the supporting plate is vertically fixed on the other side of the base plate, the supporting plate is provided with a mounting hole for mounting the vibration source device, the end of the connecting arm is fixed on the base plate, and the other end of the connecting arm is fixed on the supporting plate.
In still another implementations of the invention, the mounting bracket includes two of the connecting arms, and the two connecting arms are respectively disposed on both sides of the mounting hole in the horizontal direction.
In yet another implementations of the invention, guide rings are provided on both sides of the support plate, both guide rings being disposed along the outer edge of the mounting hole and coaxially with the mounting hole, the guide rings provided on the sides of the support plate being sandwiched between the two connecting arms.
In yet another implementations of the invention, the mounting bracket further includes a stiffener secured between the base plate and the guide ring.
In yet another implementation manners of the present invention, the support column, the second support column and the mass block are all prism structures, and each edge of the prism structures is provided with a chamfer.
In yet another implementations of the invention, the rigid structural members are steel structural members.
In yet another implementation of the invention, the support column and the second support column are both hollow structural members and each of the masses are solid structural members.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the vibration isolation device comprises a mounting part, a base and a vibration source device, wherein the mounting part is used for mounting the vibration source device, the base is used for being fixed on other devices, when the vibration source device starts to work and generates vibration, vibration energy is transmitted to the vibration isolation part from the mounting part, the vibration energy is transmitted to the vibration isolation part sequentially according to the support column, a mass block and a second support column in the transmission process of the vibration energy on the vibration isolation part, and the mass block, the support column and the second support column have poor mass, and under the premise that the vibration energy is determined, the mass is larger and the amplitude is smaller, so that the mass block can absorb a large amount of vibration energy, the vibration isolation effect is achieved, and the vibration energy received by the base is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a vibration isolator according to an embodiment of the present invention;
fig. 2 is a partial structural schematic view of the vibration isolator according to the embodiment of the invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further with reference to the accompanying drawings.
The embodiment of the invention provides vibration isolators, and fig. 1 is a structural schematic diagram of the vibration isolator, and as shown in fig. 1, the vibration isolator comprises a mounting part 1, a base 2 and a plurality of vibration isolation parts 3, wherein each vibration isolation part 3 is respectively fixed between the mounting part 1 and the base 2 at intervals, the mounting part 1, the base 2 and all the vibration isolation parts 3 are rigid structural members, each vibration isolation part 3 comprises a supporting column 31, a second supporting column 32 and a mass block 33, for any vibration isolation parts 3, the mass of the supporting column 31 and the mass of the second supporting column 32 are smaller than that of the mass block 33, a end of the supporting column 31 is fixedly mounted on the mounting part 1, the other end of the supporting column 31 is fixedly mounted on the mass block 33, the end of the second supporting column 32 is fixedly mounted on the base 2, and the other end of the.
The vibration isolation part 3 is arranged between the mounting part 1 and the base 2, the mounting part 1 is used for mounting the vibration source equipment 100, the base 2 is used for being fixed on other equipment, when the vibration source equipment 100 starts to work and generates vibration, vibration energy is transmitted to the vibration isolation part 3 from the mounting part 1, the vibration energy is transmitted to the vibration isolation part 3 in sequence according to the th supporting column 31, the mass 33 and the second supporting column 32 in sequence, because the mass difference exists between the mass 33 and the supporting column 31 and the second supporting column 32, and under the premise that the vibration energy is fixed, the mass is larger, the vibration amplitude is smaller, so that the mass 33 can absorb a large amount of vibration energy, the vibration isolation effect is achieved, and the vibration energy received by the base 2 is reduced.
Preferably, the masses of the th support column 31 and the second support column 32 may be the same, with the mass ratio between the mass 33 and the th support column 31 being at least greater than 3: 1, more preferably, the mass ratio between the mass 33 and the th support column 31 may be 5: 1.
In the above implementation, the vibration isolator provided by the present embodiment may include four vibration isolation portions respectively arranged at four corners of the base 2 to uniformly isolate vibration energy transmitted to the base 2.
Specifically, the rigid structural member can be a steel structural member, so that the rigidity of the vibration isolator is ensured, and the mass production of the vibration isolator is facilitated.
For example, since the vibration isolation part needs to transmit vibration energy, the vibration isolation part may be a steel structure in order to ensure the rigidity of the vibration isolation part, and other alloys, such as aluminum alloy, may be selected for the mounting part and the base, so as to achieve a lightweight design of the vibration isolator.
Preferably, the th support column 31, the second support column 32 and the mass block 33 are all prism structures, each edge of the prism structures is provided with a chamfer 34, and each chamfer 34 extends along the length direction of the corresponding th support column 31, the corresponding second support column 32 or the corresponding mass block 33, so that the operator is prevented from being scratched by the edge, and the potential safety hazard is eliminated.
In this embodiment, the supporting column 31 and the second supporting column 32 are both hollow structural members, and each mass block 33 is a solid structural member, so that it is further convenient to achieve a large mass difference between the supporting column 31 and the mass block 33 and the second supporting column 32, so as to ensure that the mass block 33 absorbs vibration energy.
Preferably, the sectional area of the mass 33 is larger than that of the th support column 31 and the second support column 32, that is, the outer edge of the mass 33 protrudes beyond the outer edges of the th support column 31 and the second support column 32, so that it can be ensured that the mass of the mass is larger than that of the th support column 31 and the second support column 32 under the condition that the th support column 31, the second support column 32 and the mass 33 are made of the same material.
More preferably, the th support column 31, the second support column 32 and the mass block are all in the shape of a quadrangular prism, wherein the th support column 31 and the second support column 32 can be hollow square steel of 50 × 50mm, the thickness of the steel plate is 4mm, the height of the steel plate is 144mm, and the mass block 33 can be a solid steel column with the specification of 75 × 75 × 100 mm.
In this embodiment, mounting flanges 35 are provided at ends of the th supporting column 31 and the second supporting column 32, the th supporting column 31 is fixedly mounted to the mounting portion 1 from the end through the corresponding mounting flange 35, and the second supporting column 32 is fixedly mounted to the base 2 from the end through the corresponding mounting flange 35.
In the implementation manner, the th supporting column 31 and the second supporting column 32 effectively increase the installation area through the mounting flange 35, and the installation firmness of the th supporting column 31 and the second supporting column 32 is improved.
Specifically, the mounting flange 35 on the th support column 31 is coaxially arranged with the th support column 31, the mounting flange 35 on the second support column 32 is coaxially arranged with the second support column 32, each mounting flange 35 is provided with a hole for inserting a bolt, so that the th support column 31 is bolted to the mounting portion 1 through the mounting flange 35, and the second support column 32 is bolted to the base 2 through the mounting flange 35.
In the present embodiment, the mounting portion 1 includes a mounting plate 11 and a mounting bracket 12 for mounting the vibration source apparatus 100, each -th supporting column 31 is fixed to the same side of the mounting plate 11, and the mounting bracket 12 is fixed to the other side of the mounting plate 11.
Specifically, the mounting plate 11 may be a steel plate having a specification of 500 × 500 × 20 mm.
Specifically, the base 2 may be a steel plate of the same specification as the mounting plate 11, thereby reducing the manufacturing cost of the vibration isolator.
Fig. 2 is a partial structural schematic view of the vibration isolator, and in combination with fig. 2, preferably, the mounting plate 11 and the base 2 are both provided with lightening holes 4, so that the lightweight design of the vibration isolator is realized.
More preferably, the lightening hole 4 is provided at the center of the mounting plate 11 or the base 2, thereby securing structural stability of the mounting plate 11 and the base 2.
Referring again to fig. 1, the mounting bracket 12 includes a base plate 121, a supporting plate 122 and a connecting arm 123, wherein the side of the base plate 121 is fixedly mounted on along with the other side of the mounting plate 11, the supporting plate 122 is vertically fixed on the other side of the base plate 121, the supporting plate 122 is provided with a mounting hole (not shown) for mounting the vibration source device 100, the end of the connecting arm 123 is fixed on the other side of the base plate 121, and the other of the connecting arm 123 is fixed on the side of the supporting plate 122.
Preferably, the base plate 121 is fixedly mounted on the mounting plate 11 through bolts, so that the mounting brackets 12 with different specifications can be replaced and detached conveniently for different vibration source equipment.
In the above implementation manner, the vibration source device 100 may be inserted into the mounting hole, so that the vibration source device 100 can be fixed on the vibration isolator to achieve isolation and attenuation of vibration through the vibration isolator.
Specifically, the base plate 121, the supporting plate 122 and the connecting arm 123 can be fixedly connected to the connecting part by welding.
Preferably, the supporting plate 122 may be located at the middle of the mounting plate 11, so that when the vibration source apparatus 100 is inserted into the mounting hole, the vibration source apparatus 100 may also be located at the middle of the mounting plate 11, so as to ensure that the vibration source apparatus 100 is stably mounted on the vibration isolator.
In the present embodiment, the mounting bracket 12 includes two connecting arms 123, and the two connecting arms 123 are respectively disposed at both sides of the mounting hole in the horizontal direction, so that the support plate 122 can be smoothly supported.
In the present embodiment, the support plate 122 is provided on both side surfaces thereof with guide rings 124, both the guide rings 124 are arranged along the outer edge of the mounting hole and coaxially with the mounting hole, and the guide rings 124 provided on the side surface of the support plate 122 are sandwiched between the two connecting arms 123.
In the above implementation, since the guide ring 124 protrudes from the supporting plate 122, the vibration source apparatus 100 can be guided by the guide ring 124 when the vibration source apparatus 100 is inserted, so as to facilitate accurate insertion of the vibration source apparatus 100. in addition, after the vibration source apparatus 100 is inserted into the mounting hole, the guide ring 124 can be tightly attached to the outer wall of the vibration source apparatus 100, so that -determined supporting function can be performed on the vibration source apparatus 100.
Further, since the guide ring 124 can support the vibration source apparatus 100 at , the guide ring 124 is interposed between the two connecting arms 123, and the structural stability of the guide ring 124 can be ensured.
Preferably, the mounting bracket 12 further includes a stiffener 125, the stiffener 125 being secured between the base 121 and the guide ring 124, thereby further increasing the support of the guide ring 124.
In order to test the vibration isolation effect of the vibration isolator provided by the embodiment of the invention, comparison vibration isolators are designed, the structure of each comparison vibration isolator is basically the same as that of the vibration isolator provided by the embodiment, the difference is only that the vibration isolation part of each comparison vibration isolator only comprises a support column (the structure is the same as that of the support column) and does not comprise a mass block, the vibration source equipment selects two identical permanent magnet synchronous motors, the weight of each permanent magnet synchronous motor is about 160kg, the rated power is 5.0kw, the rated rotating speed is 60rpm, the two permanent magnet synchronous motors are started simultaneously, the vibration of the base 2 corresponding to the four vibration isolation parts is measured, and the average value of the vibration isolation parts is taken to obtain the test result in the table 1.
TABLE 1
| Vibration isolator | Comparison vibration isolator | Amount of vibration isolation | |
| Vibration acceleration level (dB) | 111.2 | 118.3 | 7.1 |
As can be seen from table 1, the vibration isolator provided in the embodiment of the present invention can effectively achieve a vibration isolation effect.
Through a plurality of tests, the vibration isolator provided by the embodiment of the invention has good attenuation and isolation effects on high-frequency vibration with the vibration frequency f being more than or equal to 4 kHz.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1, A vibration isolator, which comprises an installation part, a base and a plurality of vibration isolation parts, wherein each vibration isolation part is respectively fixed between the installation part and the base at intervals, and is characterized in that the installation part, the base and all the vibration isolation parts are rigid structural members, each vibration isolation part comprises a th supporting column, a second supporting column and a mass block, for any vibration isolation parts, the mass of the th supporting column and the mass of the second supporting column are all smaller than that of the mass block, the end of the supporting column is fixedly installed on the installation part, the other end of the supporting column is fixedly installed on the mass block, the end of the second supporting column is fixedly installed on the base, and the other end of the second supporting column is fixedly installed on the mass block;
the masses of the th support column and the second support column are the same, and the mass ratio of the mass to the th support column is at least greater than 3: 1;
the th support column and the second support column are both hollow structural members, and each mass block is a solid structural member.
2. The vibration isolator according to claim 1, wherein mounting flanges are arranged at ends of the supporting column and the second supporting column, the supporting column is fixedly mounted on the mounting portion through the corresponding mounting flanges, and the second supporting column is fixedly mounted on the base through the corresponding mounting flanges.
3. The isolator of claim 1 wherein said mounting portion comprises a mounting plate and a mounting bracket for mounting the source equipment, all of said th support posts being secured to the same side of said mounting plate, said mounting bracket being secured to the other side of said mounting plate.
4. The vibration isolator according to claim 3, wherein the mounting bracket comprises a base plate, a supporting plate and a connecting arm, wherein the side of the base plate is fixedly mounted on away from the other side of the mounting plate, the supporting plate is vertically fixed on the other side of the base plate, the supporting plate is provided with a mounting hole for mounting the vibration source equipment, the end of the connecting arm is fixed on the base plate, and the other end of the connecting arm is fixed on the supporting plate.
5. The vibration isolator according to claim 4, wherein the mounting bracket includes two of the connecting arms, the two connecting arms being respectively disposed on both sides of the mounting hole in the horizontal direction.
6. The isolator according to claim 5, wherein said support plate is provided on both sides with guide rings, both of said guide rings being disposed along an outer edge of said mounting hole and coaxially with said mounting hole, said guide rings disposed on the side of said support plate being sandwiched between said two connecting arms.
7. The isolator of claim 6 wherein said mounting bracket further comprises a reinforcing rib secured between said base plate and said guide ring.
8. The isolator according to any of claims 1-7 wherein the support column, the second support column and the mass are each a prismatic structure with a chamfer on each edge of the prismatic structure.
9. The isolator according to any one of claims 1 to 7 to wherein the rigid structural member is a steel structural member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401928.0A CN108167377B (en) | 2017-12-22 | 2017-12-22 | vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401928.0A CN108167377B (en) | 2017-12-22 | 2017-12-22 | vibration isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167377A CN108167377A (en) | 2018-06-15 |
| CN108167377B true CN108167377B (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401928.0A Active CN108167377B (en) | 2017-12-22 | 2017-12-22 | vibration isolator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263961A (en) * | 2022-07-08 | 2022-11-01 | 天津大学 | Sensor phononic crystal vibration isolator for underwater vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574540A (en) * | 1983-10-17 | 1986-03-11 | Shiau Jgi Jiang | Structural support system for minimizing the effects of earthquakes on buildings and the like |
| CN205255982U (en) * | 2015-01-28 | 2016-05-25 | 源捷公司 | Two -stage vibration isolation system |
| CN205534876U (en) * | 2015-12-18 | 2016-08-31 | 中国科学院西安光学精密机械研究所 | Hard and soft combined supporting structure of optical instrument and optical instrument |
| CN106091306A (en) * | 2016-07-29 | 2016-11-09 | 珠海格力电器股份有限公司 | Installing rack, air-conditioning water circuit system and air-conditioning |
| CN107355508A (en) * | 2017-09-07 | 2017-11-17 | 东方电气集团东方电机有限公司 | A kind of damping frame and the motor using the damping frame |
-
2017
- 2017-12-22 CN CN201711401928.0A patent/CN108167377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574540A (en) * | 1983-10-17 | 1986-03-11 | Shiau Jgi Jiang | Structural support system for minimizing the effects of earthquakes on buildings and the like |
| CN205255982U (en) * | 2015-01-28 | 2016-05-25 | 源捷公司 | Two -stage vibration isolation system |
| CN205534876U (en) * | 2015-12-18 | 2016-08-31 | 中国科学院西安光学精密机械研究所 | Hard and soft combined supporting structure of optical instrument and optical instrument |
| CN106091306A (en) * | 2016-07-29 | 2016-11-09 | 珠海格力电器股份有限公司 | Installing rack, air-conditioning water circuit system and air-conditioning |
| CN107355508A (en) * | 2017-09-07 | 2017-11-17 | 东方电气集团东方电机有限公司 | A kind of damping frame and the motor using the damping frame |
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|---|---|
| CN108167377A (en) | 2018-06-15 |
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