CN103470684A - Suspended low-frequency compound multi-layer vibration isolation base - Google Patents
Suspended low-frequency compound multi-layer vibration isolation base Download PDFInfo
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- CN103470684A CN103470684A CN2013104261909A CN201310426190A CN103470684A CN 103470684 A CN103470684 A CN 103470684A CN 2013104261909 A CN2013104261909 A CN 2013104261909A CN 201310426190 A CN201310426190 A CN 201310426190A CN 103470684 A CN103470684 A CN 103470684A
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Abstract
The invention discloses a suspended low-frequency compound multi-layer vibration isolation base, which comprises an upper clamp plate, a lower clamp plate, a suspension part and a plurality of load-bearing springs, wherein the load-bearing springs are arranged between the upper clamp plate and the lower clamp plate; one end of each load-bearing spring is connected with the upper clamp plate, and the other end of each load-bearing spring is connected with the lower clamp plate; a through hole is formed in the central position of the upper clamp plate; the suspension part is arranged in the through hole, and can move upwards, downwards, leftwards and rightwards; the bottom of the suspension part is connected with the upper clamp plate through a plurality of hanging springs with low natural vibration frequencies. According to the suspended low-frequency compound multi-layer vibration isolation base, a hanging spring layer with low natural vibration frequency and a load-bearing spring layer are compounded into multi-layer isolate vibration, so that low-frequency noise transmitted by structural vibration can be eliminated effectively. A vibration source is treated in a suspension way through a suspension body, no requirement is made on the vibration direction of vibration equipment, and the suspended low-frequency compound multi-layer vibration isolation base is suitable for all-dimensional vibration sources. Moreover, the suspended low-frequency compound multi-layer vibration isolation base has the advantages of convenience in installing, lower cost and very good vibration isolation effect.
Description
Technical field
The present invention relates to a kind of isolation mounting, relate in particular to the power distribution transformer isolation mounting.
Background technique
The transformer room running noises is one of primary pollution source of community at present.So-called transformer room noise is the transformer low frequency vibration that 100Hz is fundamental frequency of take that the 50Hz Ac is caused.The result transmission penetrating power of this low-frequency vibration is very strong, and generally speaking, the transformer room room noise is only 48 ~ 67dB (A), and upstairs premises noise rank is generally 36 ~ 48 dB (A).Resident family can obviously experience buzz, and this low-frequency noise can cause on people's health very large impact for a long time in the past.Existing traditional isolation mounting is as poor to this vibration source vibration isolating effect as spring, rubber pneumatic bag, and vibration isolation efficiency is low, and the life-span is short.And vibration source has not of the same race, and up-down vibration is arranged, and side-to-side vibrations is arranged, general isolation mounting can only be suitable for a kind of vibration source of direction.
Summary of the invention
The object of the invention is to the defect existed for prior art, a kind of suspension type low frequency composite multi-layer vibration isolation base that can effectively solve the structural vibration noise propagation problem is provided.
For achieving the above object, the present invention adopts following technical proposals: a kind of suspension type low frequency composite multi-layer vibration isolation base, comprise punch holder, die holder, suspender, a plurality of load bearing spring, described load bearing spring is arranged between punch holder and die holder, one end of load bearing spring connects punch holder, and the other end connects die holder, and the central position of punch holder has through hole, described suspender is placed in can be movable up and down in through hole, and the bottom of suspender is hung spring by a plurality of low natural frequencies of vibration and connected punch holder.
As a kind of improvement: the described low natural frequency of vibration that is connected to the suspender bottom is hung spring and is connected punch holder by the adjustable bolt be arranged on punch holder, adjustable bolt be arranged on punch holder in through hole along on the position, limit, the afterbody of adjustable bolt is provided with bolt connecting hole, the low natural frequency of vibration is hung an end hook of spring in the bolt connecting hole of adjusting bolt afterbody, and the other end that the low natural frequency of vibration is hung spring is connected in the bottom of suspender.
As a kind of improvement: also be provided with silicone gasket between the head of described adjustable bolt and the upper surface of punch holder, adjustable bolt is anchored on punch holder by silicone gasket.
As a kind of improvement: the described a plurality of low natural frequency of vibration that is connected to the suspender bottom is hung spring and is annulus and is uniformly distributed.
As a kind of improvement: described suspender comprises the hanging post body and coaxially is fixed in the suspension base plate on hanging post body bottom, the diameter that hangs base plate is more than or equal to the diameter of hanging post body, the end face of hanging post body is provided with the installation double-screw bolt, have a plurality of base plate attachment holes hanging on the position of leaving the hanging post body on base plate, by the base plate attachment hole, make a plurality of low natural frequencies of vibration hang the bottom that spring is connected in suspender.
As a kind of improvement: be provided with a plurality of load bearing springs between described punch holder and die holder, described a plurality of load bearing springs are uniformly distributed ringwise centered by through hole.
Vibration source is arranged on the suspension body of suspension type low frequency composite multi-layer vibration isolation base of the present invention, vibration source hangs spring, punch holder, load bearing spring to die holder through suspension body, the low natural frequency of vibration, due to the low natural frequency of vibration, hanging between spring and suspension body is several somes surface of contact, transmitting vibrations source area of contact is little, and vibration source is formed to high-impedance state.The present invention adopts the low natural frequency of vibration to hang spring layer, the vibration isolation of load bearing spring layer composite multi-layer, can effectively solve the low-frequency noise that structural vibration is propagated.The present invention processes vibration source through the suspension body suspension type, without any requirement to the direction of vibration of vibratory equipment, is applicable to comprehensive vibration source.And easy for installation, cost is lower, vibration isolating effect is very good.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The accompanying drawing explanation
The structural representation that Fig. 1 is a kind of embodiment of suspension type low frequency vibration isolation seat of the present invention.
The sectional view that Fig. 2 is A-A in Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, a kind of embodiment of suspension type low frequency composite multi-layer vibration isolation base of the present invention, comprise punch holder 1, die holder 2, suspender 3, four load bearing springs 4, described four load bearing springs 4 are arranged between punch holder 1 and die holder 2, one end of load bearing spring 4 connects punch holder 1, the other end connects die holder 2, the central position of punch holder 1 has through hole 11, described suspender 3 is placed in can be movable up and down in through hole 11, and the bottom of suspender 3 is hung spring 6 by a plurality of low natural frequencies of vibration and connected punch holder.The suspender 3 of the present embodiment comprises hanging post body 32 and coaxially is fixed in the suspension base plate 33 on hanging post body 32 bottoms, the end face of hanging post body 32 is provided with installs double-screw bolt 31, for up rightness and the stability that guarantees that suspension body can move up and down in through hole 11, the diameter that hangs base plate 33 is greater than the diameter of hanging post body 32, be evenly distributed with six base plate attachment holes 331 hanging on the coaxial circles ring position that leaves hanging post body 32 on base plate 33, by base plate attachment hole 331, making six low natural frequencies of vibration hang spring 6 is annulus and is uniformly distributed the bottom that is connected in suspender 3.The design of suspension body 3 makes the center of gravity of vibration source be minimized.It is stable, evenly that the distributing homogeneity that six low natural frequencies of vibration are hung spring 6 transmits vibration.Four load bearing springs 4 between punch holder 1 and die holder 2 are uniformly distributed ringwise centered by through hole 11, vibration is transmitted and Conversion of Energy is more stable, even, further improve stability and the reliability of suspension type low frequency composite multi-layer vibration isolation base.
It is by being arranged on the adjustable bolt 5 connection punch holders 1 on punch holder 1 that the low natural frequency of vibration of the present embodiment is hung spring 6, adjustable bolt 5 be arranged on punch holder 1 in through hole 11 along on the position, limit, the afterbody of adjustable bolt 5 is provided with bolt connecting hole 51, the low natural frequency of vibration is hung an end hook of spring 6 in the bolt connecting hole 51 of adjusting bolt 5 afterbodys, and the other end that the low natural frequency of vibration is hung spring 6 is connected in the bottom of suspender 3.The setting of adjustable bolt 5 has been equivalent to extend the length that the low natural frequency of vibration is hung spring 6, has realized again that the low natural frequency of vibration is hung the length of spring 6 adjustable simultaneously, and the distance between punch holder and die holder can be increased, and has reduced to a greater extent the center of gravity of suspension body 3.Also be provided with silicone gasket 7 between the head of adjustable bolt 5 and the upper surface of punch holder, adjustable bolt 5 is anchored on punch holder by silicone gasket 7.The effect of silicone gasket 7 is: strengthen the tightness that is connected of punch holder 1 and adjustable bolt 5, avoid the relative movement generation noise between adjustable bolt 5 and punch holder 1.
During work, vibration source is fixedly mounted on vibration isolation base of the present invention by double-screw bolt 31 is installed, vibration source hangs spring 6, silicone gasket 7, punch holder 1, load bearing spring to die holder through suspension body 3, the low natural frequency of vibration.By said structure, through subtracting, keep away, vibration isolation processes.Through test, the vibrational energy structure is absorbed energy transform into heat energy more than transmitting 99 %.Can effectively solve the structural vibration noise propagation problem.And the present invention's compound isolation mounting of spring suspension type that stretches, center of gravity is low, reliable and stable.
Simultaneously, the present invention incessantly can be for the vibration noise vibration isolation of power distribution transformer, also applicable to the vibration isolation of water pump vibration noise, the vibration isolation of heat pump fan vibration noise, the vibration isolation of small power generation unit vibration noise, the vibration isolation of Blower for sucking or supplying vibration noise etc.
Claims (10)
1. suspension type low frequency composite multi-layer vibration isolation base, it is characterized in that: comprise punch holder (1), die holder (2), suspender (3), a plurality of load bearing springs (4), described load bearing spring (4) is arranged between punch holder (1) and die holder (2), one end of load bearing spring (4) connects punch holder (1), the other end connects die holder (2), the central position of punch holder (1) has through hole (11), described suspender (3) is placed in can be movable up and down in through hole (11), the bottom of suspender (3) is hung spring (6) by a plurality of low natural frequencies of vibration and is connected punch holder.
2. suspension type low frequency composite multi-layer vibration isolation base according to claim 1, it is characterized in that: the described low natural frequency of vibration that is connected to suspender (3) bottom is hung spring (6) and is connected punch holder (1) by the adjustable bolt (5) be arranged on punch holder (1), adjustable bolt (5) be arranged on punch holder (1) in through hole (11) along on the position, limit, the afterbody of adjustable bolt (5) is provided with bolt connecting hole (51), the low natural frequency of vibration is hung an end hook of spring (6) in the bolt connecting hole (51) of adjusting bolt (5) afterbody, the other end that the low natural frequency of vibration is hung spring (6) is connected in the bottom of suspender (3).
3. suspension type low frequency composite multi-layer vibration isolation base according to claim 2, it is characterized in that: also be provided with silicone gasket (7) between the head of described adjustable bolt (5) and the upper surface of punch holder, adjustable bolt (5) is anchored on punch holder by silicone gasket (7).
4. according to claim 1 or 2 or 3 described suspension type low frequency composite multi-layer vibration isolation bases, it is characterized in that: the described a plurality of low natural frequency of vibration that is connected to suspender (3) bottom is hung spring (6) and is annulus and is uniformly distributed.
5. according to claim 1 or 2 or 3 described suspension type low frequency composite multi-layer vibration isolation bases, it is characterized in that: described suspender (3) comprises hanging post body (32) and coaxially is fixed in the suspension base plate (33) on hanging post body (32) bottom, the diameter that hangs base plate (33) is more than or equal to the diameter of hanging post body (32), the end face of hanging post body (32) is provided with installs double-screw bolt (31), have a plurality of base plate attachment holes (331) hanging on the position of leaving hanging post body (32) on base plate (33), by base plate attachment hole (331), make a plurality of low natural frequencies of vibration hang the bottom that spring (6) is connected in suspender (3).
6. suspension type low frequency composite multi-layer vibration isolation base according to claim 4, it is characterized in that: described suspender (3) comprises hanging post body (32) and coaxially is fixed in the suspension base plate (33) on hanging post body (32) bottom, the diameter that hangs base plate (33) is more than or equal to the diameter of hanging post body (32), the end face of hanging post body (32) is provided with installs double-screw bolt (31), have a plurality of base plate attachment holes (331) hanging on the position of leaving hanging post body (32) on base plate (33), by base plate attachment hole (331), make a plurality of low natural frequencies of vibration hang the bottom that spring (6) is connected in suspender (3).
7. according to claim 1 or 2 or 3 described suspension type low frequency composite multi-layer vibration isolation bases, it is characterized in that: be provided with a plurality of load bearing springs (4) between described punch holder (1) and die holder (2), described a plurality of load bearing springs (4) are uniformly distributed ringwise centered by through hole (11).
8. suspension type low frequency composite multi-layer vibration isolation base according to claim 4, it is characterized in that: be provided with a plurality of load bearing springs (4) between described punch holder (1) and die holder (2), described a plurality of load bearing springs (4) are uniformly distributed ringwise centered by through hole (11).
9. suspension type low frequency composite multi-layer vibration isolation base according to claim 5, it is characterized in that: be provided with a plurality of load bearing springs (4) between described punch holder (1) and die holder (2), described a plurality of load bearing springs (4) are uniformly distributed ringwise centered by through hole (11).
10. suspension type low frequency composite multi-layer vibration isolation base according to claim 6, it is characterized in that: be provided with a plurality of load bearing springs (4) between described punch holder (1) and die holder (2), described a plurality of load bearing springs (4) are uniformly distributed ringwise centered by through hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426190.9A CN103470684B (en) | 2013-09-18 | 2013-09-18 | Suspension type low frequency composite multi-layer vibration isolation base |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426190.9A CN103470684B (en) | 2013-09-18 | 2013-09-18 | Suspension type low frequency composite multi-layer vibration isolation base |
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| CN103470684A true CN103470684A (en) | 2013-12-25 |
| CN103470684B CN103470684B (en) | 2016-03-02 |
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| CN201310426190.9A Expired - Fee Related CN103470684B (en) | 2013-09-18 | 2013-09-18 | Suspension type low frequency composite multi-layer vibration isolation base |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899704A (en) * | 2014-01-22 | 2014-07-02 | 安徽工程大学 | Damping-adjustable vibration isolation platform with quasi-zero stiffness |
| CN104154170A (en) * | 2014-08-01 | 2014-11-19 | 安徽工程大学 | Parallel mechanism based multidimensional vibration platform |
| CN106763459A (en) * | 2016-12-22 | 2017-05-31 | 中国科学院合肥物质科学研究院 | It is a kind of to suspend damping device in midair without magnetic-type multistage |
| CN110159628A (en) * | 2019-06-21 | 2019-08-23 | 东北大学 | A kind of self-adaptive protector of shield tunnel screwed joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247904A (en) * | 1938-02-03 | 1941-07-01 | Hoover Co | Refrigeration |
| DE1800376A1 (en) * | 1968-02-05 | 1969-08-14 | Rheinhold & Mahla Gmbh | Double-elastic mounting for body-borne noise insulation |
| JP2004011318A (en) * | 2002-06-10 | 2004-01-15 | Shonan Kosan Kk | Base isolation system for building structure |
| CN202301687U (en) * | 2011-10-10 | 2012-07-04 | 陈先伟 | Low-frequency vibration isolation platform |
| CN202402559U (en) * | 2011-12-28 | 2012-08-29 | 中国科学技术大学 | Passive low frequency vibration isolator |
| CN202422967U (en) * | 2011-11-21 | 2012-09-05 | 杭州钱江电气集团股份有限公司 | Damping device for reducing noise of dry type transformer |
-
2013
- 2013-09-18 CN CN201310426190.9A patent/CN103470684B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247904A (en) * | 1938-02-03 | 1941-07-01 | Hoover Co | Refrigeration |
| DE1800376A1 (en) * | 1968-02-05 | 1969-08-14 | Rheinhold & Mahla Gmbh | Double-elastic mounting for body-borne noise insulation |
| JP2004011318A (en) * | 2002-06-10 | 2004-01-15 | Shonan Kosan Kk | Base isolation system for building structure |
| CN202301687U (en) * | 2011-10-10 | 2012-07-04 | 陈先伟 | Low-frequency vibration isolation platform |
| CN202422967U (en) * | 2011-11-21 | 2012-09-05 | 杭州钱江电气集团股份有限公司 | Damping device for reducing noise of dry type transformer |
| CN202402559U (en) * | 2011-12-28 | 2012-08-29 | 中国科学技术大学 | Passive low frequency vibration isolator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899704A (en) * | 2014-01-22 | 2014-07-02 | 安徽工程大学 | Damping-adjustable vibration isolation platform with quasi-zero stiffness |
| CN103899704B (en) * | 2014-01-22 | 2015-11-18 | 安徽工程大学 | A kind of damping adjustable shock isolation platform with accurate zero stiffness |
| CN104154170A (en) * | 2014-08-01 | 2014-11-19 | 安徽工程大学 | Parallel mechanism based multidimensional vibration platform |
| CN106763459A (en) * | 2016-12-22 | 2017-05-31 | 中国科学院合肥物质科学研究院 | It is a kind of to suspend damping device in midair without magnetic-type multistage |
| CN110159628A (en) * | 2019-06-21 | 2019-08-23 | 东北大学 | A kind of self-adaptive protector of shield tunnel screwed joint |
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| CN103470684B (en) | 2016-03-02 |
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