CN111005975A - Composite Vibration Isolator - Google Patents

Composite Vibration Isolator Download PDF

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Publication number
CN111005975A
CN111005975A CN201910509409.9A CN201910509409A CN111005975A CN 111005975 A CN111005975 A CN 111005975A CN 201910509409 A CN201910509409 A CN 201910509409A CN 111005975 A CN111005975 A CN 111005975A
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CN
China
Prior art keywords
vibration isolation
steel plate
square groove
strip
vibration
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910509409.9A
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Chinese (zh)
Inventor
林洁
林嘉祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Jiada Environmental Protection Technology Co ltd
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Xiamen Jiada Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Jiada Environmental Protection Technology Co ltd filed Critical Xiamen Jiada Environmental Protection Technology Co ltd
Priority to CN201910509409.9A priority Critical patent/CN111005975A/en
Publication of CN111005975A publication Critical patent/CN111005975A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16F15/022—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 using dampers and springs in combination
    • 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
    • F16F15/04—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 using elastic means
    • F16F15/08—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 using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085—Use of both rubber and metal springs
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/0005—Attachment, e.g. to facilitate mounting onto confer adjustability
    • 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
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/026—Springs wound- or coil-like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a composite vibration isolation table, which comprises two or more strip-shaped vibration isolation table seats and a rubber vibration attenuation adjuster, wherein each strip-shaped vibration isolation table seat comprises an outer steel plate square groove, an inner steel plate square groove, a particle damper, a steel spring ring and an elastic rubber strip; the particle damper is arranged in the square groove of the outer steel plate, the steel spring ring comprises a cylindrical spiral compression spring of a top plate and a bottom plate, and the top plate and the bottom plate of the steel spring ring are respectively and reliably connected with the bottom plate at the lower part of the square groove of the outer steel plate and the square groove of the inner steel plate; the rubber vibration reduction adjuster comprises an adjusting screw rod, an integrated cylindrical structure formed by vulcanizing a steel plate and rubber, and a circular friction groove is formed in the bottom of the integrated cylindrical structure. The sound insulation effect is good, the vibration reduction frequency band is wide, and the vibration isolation and noise reduction requirements of vibration source equipment can be met; the particle damper is arranged inside the particle filter, so that resonance can be well avoided; the installation and construction are simple, and the transformation cost is low.

Description

Composite vibration isolation table
Technical Field
The invention relates to a low-frequency vibration structure-borne noise vibration isolation and noise reduction control technology, in particular to a composite vibration isolation table of vibration source equipment.
Background
The vibration of the vibration source equipment is transmitted through solid structure sound generated by the contact of the vibration source equipment base and the ground building. The vibration of the vibration source equipment is widely transmitted along the building structure through foundations, walls, floors, pipeline systems, rigid supports/hangers and the like, the transmission speed of sound energy in building components is high, the energy loss of low-frequency sound waves transmitted in solids along with the distance is small, and the low-frequency sound waves can be transmitted to every corner connected with the building components along the building components. This is the main reason why "solid sound transmission" or "structural sound transmission" has a wide impact in the same building. If the low frequency sound wave excites the building element to resonance, the vibrational energy generated will be several times the vibrational energy of the apparatus.
WHO indicated in the report released in 2000 that: low-frequency low-level noise interferes with the rest and sleep of people; a, underestimating the influence of a weighting network on low-frequency noise; the standard limit for low frequency noise should be more stringent; evidence of the negative effects of low frequency noise is already sufficient and of interest.
Disclosure of Invention
The invention aims to provide a composite vibration isolation table, wherein each vibration source device is provided with two or more strip-shaped vibration isolation table bases, so that the weight of the vibration isolation table bases is reduced, the transportation and the installation are convenient, the installation and the construction are simple, and the reconstruction cost is low. The composite vibration isolation structure is integrated by using a secondary vibration isolation technology and a passively controlled particle damping energy dissipation technology. The vibration damping frequency band is wide, and the vibration isolation and noise reduction requirements of vibration source equipment can be met; the damping structure is arranged inside the damping structure, so that resonance can be well avoided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a composite vibration isolation platform comprises two or more strip-shaped vibration isolation pedestal and a rubber vibration attenuation adjuster. The strip-shaped vibration isolation pedestal comprises an outer steel plate square groove, an inner steel plate square groove, a particle damper, a steel spring ring and an elastic rubber strip; the particle damper is arranged in the outer steel plate square groove, the steel spring ring comprises a cylindrical spiral compression spring of a top plate and a bottom plate, and the top plate and the bottom plate of the steel spring ring are respectively and reliably connected with the bottom plate at the lower part of the inner steel plate square channel steel and the inner steel plate square groove; the rubber vibration reduction adjuster comprises an adjusting screw rod, an integrated cylindrical structure formed by vulcanizing a steel plate and rubber, and a circular friction groove is formed in the bottom of the integrated cylindrical structure.
The steel spring ring uses cylindrical helical compression spring, and is formed by welding at cylindrical helical compression spring roof and bottom plate, has both reduced the shared total volume of steel spring ring, reduces natural frequency, improves low frequency vibration isolation effect, reduces the cost of setting effectively simultaneously improving installation quality. The steel wire specification of the selected steel spring is small because the steel spring vibration isolator is limited by the specification and the cost of a base and an outer upper cover at present, and in order to improve the spring stiffness and the working load, the outer diameter and the effective number of turns of the spring are reduced (according to the result of checking the steel springs in the steel spring vibration isolators of a plurality of manufacturers by a spring M Beijing of the sixth edition of mechanical design Manual of the patent of chemical industry, 2017.01, 12-2-19 of the chemical industry Press and a calculation table P12-21 of a cylindrical spiral compression spring), so that the load range of the vibration isolator is narrowed, and the inherent frequency of the steel spring vibration isolator is reduced. Use cylindrical helical compression spring to replace steel spring isolator, strictly according to I class load: the design specification improves the working limit load, ensures the specification of the steel wire, the outer diameter of the spring, the effective number of turns and the free height, widens the vibration isolation load width, reduces the natural frequency when in the best load, and effectively improves the vibration isolation efficiency of the composite vibration isolation platform.
The vibration source equipment base is arranged on the outer steel plate square groove, and the steel spring ring is used as an elastic element of the primary vibration isolation structure. The vibration source equipment, the outer steel plate square groove and the particle damper jointly form a mass block of a primary vibration isolation structure. The particle damper and the steel spring ring jointly form a vibration isolation damping structure of a primary vibration isolation structure, and the rubber vibration reduction regulator is used as a vibration isolation element of a secondary vibration isolation structure. Meanwhile, the rubber vibration reduction regulator has a certain height, and a certain space is reserved between the strip vibration isolation pedestal and the terrace, so that the rubber vibration reduction regulator is also favorable for movement in the transportation and installation processes. Because the vibration transmission of the vibration source equipment is low-frequency vibration waves during operation, the natural frequency of the cylindrical spiral compression spring is lower than that of the steel spring vibration isolator, and the transmission of the low-frequency vibration waves of the vibration source equipment is blocked more favorably. The rubber damper is made of a rubber member made of ethylene propylene rubber having excellent weather resistance and heat resistance.
The particle damper is composed of a plurality of metal boxes filled with high-density damping particles. The weight of the particle damper can be used as the rigid mass of the primary vibration isolation structure to reduce the amplitude of the strip-shaped vibration isolation pedestal, and meanwhile, the particle damper can be used for reducing the low-frequency vibration response of the strip-shaped vibration isolation pedestal through energy consumption, so that the defect that the damping of the cylindrical spiral compression spring is low is overcome, and the vibration isolation pedestal is guaranteed to have broadband and stable vibration isolation effects.
The rubber vibration reduction adjuster is arranged below the steel spring ring, and the height between the bottom of the strip vibration isolation pedestal and the terrace is adjusted through the rotary cylindrical structure between the bottom of the strip vibration isolation pedestal and the terrace. So as to ensure the horizontal precision of the strip-shaped vibration isolation pedestal. The steel spring ring and the rubber vibration reduction adjuster are arranged along the center of the central shaft of the strip-shaped vibration isolation pedestal or symmetrically. The strip-shaped vibration isolation pedestal is guaranteed to be stressed and directly transmitted to the terrace through the steel spring ring and the rubber vibration reduction regulator. According to the weight load of vibration source equipment, when strip vibration isolation pedestal width is narrower, inside, the bottom center pin setting of steel sheet square groove, bottom center pin in the steel spring circle, rubber damping regulator is followed, and when strip vibration isolation pedestal width broad, inside, the bottom center pin symmetry setting of steel sheet square groove, rubber damping regulator is followed to steel spring circle, rubber damping regulator to it is stable to guarantee strip vibration isolation pedestal.
According to the distribution condition of the gravity center of the load of the vibration source equipment, the strip-shaped vibration isolation pedestals under the base of the vibration source equipment are mutually unevenly distributed. The strip-shaped vibration isolation pedestal is ensured to be stable in load and in the optimal stress range.
The invention has the beneficial effects that: the vibration isolation and sound insulation effect is good, the vibration isolation rate is more than 90%, and the sound insulation quantity of a solid structure can reach 15-20 dB; the vibration damping frequency band is wide, and the vibration isolation and noise reduction requirements of vibration source equipment can be met; the particle damper is arranged inside the particle sensor, so that resonance can be well avoided. According to the different loads of vibration source equipment, can set up two and above strip vibration isolation pedestal, reduce the weight of vibration isolation pedestal, improve the adaptability, be convenient for transportation and installation, the installation and construction is simple, and the transformation expense is low.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a top configuration view of a first embodiment of the present invention.
Fig. 2 is a front structural view of fig. 1.
Fig. 3 is a front view of the composite vibration isolation table.
Fig. 4 is a top configuration view of a second embodiment of the present invention.
Fig. 5 is an installation front structural view of a third embodiment of the present invention.
In the figure, 1, a strip-shaped vibration isolation pedestal, 11, an outer steel plate square groove, 12, an inner steel plate square groove, 13, a particle damper, 14, a steel spring ring, 141, a cylindrical spiral compression spring, 142, a top plate, 143, a bottom plate, 15, an elastic rubber strip, 2, a rubber vibration damping adjuster, 21, an adjusting screw, 22, a cylindrical structure, 3, vibration source equipment and 4, a terrace are arranged.
Detailed Description
In a first embodiment shown in fig. 1, 2 and 3, a composite vibration isolation platform comprises two or more strip-shaped vibration isolation platform bases (1) and a rubber vibration damping adjuster (2), wherein each strip-shaped vibration isolation platform base (1) comprises an outer steel plate square groove (11), an inner steel plate square groove (12), a particle damper (13), a steel spring ring (14) and an elastic rubber strip (15); the groove of the outer steel plate square groove (11) is downward, the groove of the inner steel plate square groove (12) is upward, an elastic rubber strip (15) is arranged in the gap between the outer steel plate square groove (11) and the inner steel plate square groove (12), the particle damper (13) is installed in the outer steel plate square groove (11), the steel spring ring (14) comprises cylindrical spiral compression springs (141) of a top plate (142) and a bottom plate (143), and the top plate (142) and the bottom plate (143) of the steel spring ring (14) are respectively and reliably connected with the bottom plates at the lower parts of the inner steel plate square groove (12) and the inner steel plate square groove (11); the rubber vibration reduction adjuster (2) comprises an adjusting screw rod (21) and an integrated cylindrical structure (22) formed by vulcanizing a steel plate and rubber, and the bottom of the integrated cylindrical structure is provided with a circular friction groove.
The particle damper (13) is composed of a plurality of metal boxes filled with high-density damping particles. Rubber damping regulator (2) install below steel spring ring (14), between strip vibration isolation pedestal (1) bottom and terrace (4), adjust through rotatory cylindrical structure (22) height between strip vibration isolation pedestal (1) bottom and terrace (4).
In the second embodiment shown in fig. 4, the steel spring ring (14) and the rubber damper adjuster (2) are arranged along the central axis of the strip-shaped vibration isolation mount (1).
In the third embodiment shown in fig. 5, the strip-shaped vibration isolation pedestals (1) under the base of the vibration source equipment (3) are unevenly distributed with each other according to the distribution of the center of gravity of the load of the vibration source equipment (3).
It will be appreciated that many variations may be made to the above-described embodiments without departing from the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1.一种复合隔振台，包括两个及以上的条状隔振台座及橡胶减振调节器，其特征是：条状隔振台座包括外钢板方槽、内钢板方槽、颗粒阻尼器、钢弹簧圈、弹性胶条；外钢板方槽凹槽向下，内钢板方槽凹槽向上，外钢板方槽与内钢板方槽的间隙设置弹性胶条，颗粒阻尼器安装在外钢板方槽内，所述的钢弹簧圈系包括顶板和底板的圆柱螺旋压缩弹簧，钢弹簧圈的顶板和底板分别与外钢板方槽内、内钢板方槽钢下部底板可靠连接；所述的橡胶减振调节器包括调节螺杆及钢板与橡胶硫化的一体式圆柱形结构，底部设置圆环形摩擦槽。1. a composite vibration isolation table, comprising two and more strip vibration isolation bases and rubber vibration damping regulator, it is characterized in that: strip vibration isolation base comprises outer steel plate square groove, inner steel plate square groove, particle damper , steel spring ring, elastic rubber strip; the outer steel plate square groove groove is downward, the inner steel plate square groove groove is upward, the gap between the outer steel plate square groove and the inner steel plate square groove is set with elastic rubber strip, and the particle damper is installed in the outer steel plate square groove Inside, the steel spring coil system includes a cylindrical helical compression spring with a top plate and a bottom plate, and the top plate and bottom plate of the steel spring coil are respectively connected with the outer steel plate square groove and the lower bottom plate of the inner steel plate square channel respectively. The adjuster includes an adjusting screw and an integral cylindrical structure of steel plate and rubber vulcanization, and an annular friction groove is arranged at the bottom. 2.根据权利要求l所述一种复合隔振台，其特征是：所述的颗粒阻尼器系由多个内填装高密度阻尼颗粒的金属盒子组成。2. A composite vibration isolation table according to claim 1, wherein the particle damper is composed of a plurality of metal boxes filled with high-density damping particles. 3.根据权利要求l所述一种复合隔振台，其特征是：所述的橡胶减振调节器安装在钢弹簧圈以下，条状隔振台座底部与地坪之间，通过旋转圆柱形结构调节条状隔振台座底部与地坪之间高度。3. a kind of composite vibration isolation table according to claim 1 is characterized in that: described rubber vibration damping regulator is installed below steel spring coil, between the bottom of strip vibration isolation table base and floor, by rotating cylindrical The structure adjusts the height between the bottom of the strip vibration isolation pedestal and the floor. 4.根据权利要求1所述一种复合隔振台，其特征是：所述的钢弹簧圈及橡胶减振调节器沿条状隔振台座中心轴中心或对称设置。4 . The composite vibration isolation table according to claim 1 , wherein the steel spring coil and the rubber vibration damping adjuster are centrally or symmetrically arranged along the central axis of the strip vibration isolation table base. 5 . 5.根据权利要求1所述一种复合隔振台，其特征是：根据振源设备荷载重心分布情况，振源设备底座下的条状隔振台座相互不均匀分布。5 . The composite vibration isolation table according to claim 1 , wherein according to the distribution of the load center of gravity of the vibration source equipment, the strip-shaped vibration isolation tables under the base of the vibration source equipment are unevenly distributed. 6 .
CN201910509409.9A 2019-06-13 2019-06-13 Composite Vibration Isolator Pending CN111005975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910509409.9A CN111005975A (en) 2019-06-13 2019-06-13 Composite Vibration Isolator

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Application Number Priority Date Filing Date Title
CN201910509409.9A CN111005975A (en) 2019-06-13 2019-06-13 Composite Vibration Isolator

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CN111005975A true CN111005975A (en) 2020-04-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111927916A (en) * 2020-09-14 2020-11-13 常州工邦减振设备有限公司 Composite multi-order wide-frequency dynamic vibration absorber
CN114658799A (en) * 2022-03-01 2022-06-24 厦门嘉达环保科技有限公司 Universal vibration isolation platform
CN117145905A (en) * 2023-09-07 2023-12-01 中国船舶集团有限公司第七一一研究所 Vibration isolation device and vibration isolation system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116082A (en) * 1999-10-15 2001-04-27 Tokai Rubber Ind Ltd Vibration control device for building structures
CN102062171A (en) * 2010-11-15 2011-05-18 中国舰船研究设计中心 Method for arranging multiple vibration isolators and vibration isolation device
CN102518916A (en) * 2012-01-04 2012-06-27 厦门嘉达环保建造工程有限公司 Equipment vibration isolation base
CN207668332U (en) * 2017-12-30 2018-07-31 曹学志 A metal mold with noise reduction and shock absorption functions
CN210118412U (en) * 2019-06-13 2020-02-28 厦门嘉达环保科技有限公司 Composite vibration isolation table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116082A (en) * 1999-10-15 2001-04-27 Tokai Rubber Ind Ltd Vibration control device for building structures
CN102062171A (en) * 2010-11-15 2011-05-18 中国舰船研究设计中心 Method for arranging multiple vibration isolators and vibration isolation device
CN102518916A (en) * 2012-01-04 2012-06-27 厦门嘉达环保建造工程有限公司 Equipment vibration isolation base
CN207668332U (en) * 2017-12-30 2018-07-31 曹学志 A metal mold with noise reduction and shock absorption functions
CN210118412U (en) * 2019-06-13 2020-02-28 厦门嘉达环保科技有限公司 Composite vibration isolation table

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111927916A (en) * 2020-09-14 2020-11-13 常州工邦减振设备有限公司 Composite multi-order wide-frequency dynamic vibration absorber
CN114658799A (en) * 2022-03-01 2022-06-24 厦门嘉达环保科技有限公司 Universal vibration isolation platform
CN117145905A (en) * 2023-09-07 2023-12-01 中国船舶集团有限公司第七一一研究所 Vibration isolation device and vibration isolation system

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Application publication date: 20200414