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ZTA、ZTB、ZTC型阻尼弹簧隔振器

ZTA、ZTB、ZTC型阻尼弹簧隔振器

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ZTA、ZTB、ZTC型阻尼弹簧隔振器

ZTA,ZTB,ZTC damp spring vibration absorber

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ZTA型阻尼弹簧隔振器是以螺旋弹簧为主体,配以阻尼材料及上下壳体、橡胶摩擦垫片等组成,本系列共有30种荷载规格,选择面广、荷载范围大,其最佳额定荷载从1OON至48000N,使用载荷从67N至64000N,固有频率均在1.5至4.9Hz范围内,适应性强,对积极隔振、消极隔振、冲击隔振效果显著,是降低噪音、减少振动危害、保护环境的理想隔振器。产品阻尼比为0.065,具有固有频率低又有较大阻尼比,结构紧凑合理,使设计更为优化,对固体传声的隔离效果明显,是一种多功能的隔振元件,能基本满足各类隔振工程的需要。

ZTA型阻尼弹簧隔振器根据安装方式不同可分为三种:1、ZTA型为上下不固定,可任意移动调节重心;2、ZTB型为上部固定形式;3、ZTC型为上下均可固定,以适合各种安装需要。

本隔振器的选用方法是:

1、确定隔振体系总质量W(N),包括设备、基座的质量。

总质量W=Q(静)+1.5R(动)

Q=Q1(设备质量)+Q2(基座质量)

在一般振动要求不严又难于取得设备扰力时,可以近似地采用设备质量01乘以动荷系数P来代替设备质量和扰力。

G=Q1+1.5R=Q1·P

因此,总质量W=G+Q2=Q1·P+Q2

P动荷系数,可以根据设备质量Q1大小及扰动频率f 大小来确定。

Q1大f小时p值可取小些,Q1小f大时p值可取大些,一般情况下取p≈1.1~1.4。

2、确定干扰频率f=n/60(Hz)。(n一设备每分钟转速)。

3、试定隔振器数量S。

4、计算每只隔振器荷载P=W/S(N)。

5、由隔振器特性图查出适宜的隔振器型号和相应的压缩量F及竖向固有频率f。

6、当需要计算径向刚度时,可查特性表。

7、隔振设计必须满足:

(1)有一定的隔振效率,T≥80%即频率比f/f0≥2.5。

(2)隔振体系的振动量(振幅或速度、加速度)小于许可值,一般情况下振动速度Vmax<10mm/s。

但不同设备有不同的评定值,请参阅有关设备相关评定标准。

The main body of ZTA damp spring vibration absorber is spiral spring,auxiliary part includes damp materials,with a cover and a base,rubber frictional gasket.This series contain 30 types of load,for a wide range of load to choose.Optimal load ranges from 1 00N to 48000N,working load ranges from 67N to 64000N,intrinsic frequency ranges from 1.5 Hz to 4.9Hz.They have strong adaptability,which are notably effective in positively vibration absorb,passively vibration absorb and impact vibration absorb,and are the ideal vibration absorber to reducing noises and vibration and protecting environment.Damp ratio of the product is 0.066,with a low intrinsic frequency and low damp ratio,SO they possess excellent ability of insulating to Solid transaudient with the compact structure and superior design.As the multi—function vibration absorb component,they can meet basically requirements of different vibration ab sorb engineering.

There are 3 types ofZTA damp spring vibration absorber according to way of installation:1 ZTA without fixing,can remove and adjust barycenter freely,2ZTBbefixedOnthetop section,3ZTCbe fixed either on the top or base according to installation need.

Selecting method:

1,Ascertain the total weight W(N)ofthe vibration absorb system including the weight of the equipment and base.

total weight w=Q(static)+1.5R(dynamic)

Q=Q1(weight ofthe equipment)+Q2(weight of the base)

The result ofweight ofequipment Q1 multiply coefficient ofthe dynamic load P can take the place of equipment weight and disturb force,when the require of vibration is not SO strict and the disturb force is not access.

G=Q1+1.5R=Q1*P

So the total weight w=G+Q2=Q 1。P+Q2

Dynamic load P can be ascertained through equipment weight Q 1 and disturb frequency f

When Q 1 is greater,fis lesser,value ofthe P can belesser.viseversa.NormalvalueofPis 1.1~1.4.

2,Ascertain disturb frequency,f=n/60(Hz).(nrpm ofequipment.)

3,Try to ascertain the amount ofthe vibration abSO— rberS.

4,Calculate the load ofeach vibration absorber P, P=W/S fN).

5,Check the suitable vibration absorber type and cOrresponding compressing volume,vertical intrinsic frequency,with the characteristic figure of vibration absorber.

6,Check the figure ofvibration absorbe~when calculating radial rigidity is needed.

7,Design ofthe vibration absorber must meet the following require,

(1)0wn certain vibration absorb efficiency.T≥80%,this means frequency ratio f/fO≥2.5.

(2)Vibration quantum(swing orvelocity,acceleration、ofvibrat— ion absorb system less than the permissive value,under the normal condition.vibration velocity Vmax<1 0mm/s.Different equipment has different access value,please refer to access standard ofcorre. spondlng equipment.

ZTA、ZTB、ZTC型隔振器外形尺寸图:

Figuration dimension figures ofZTA,ZTB,ZTC as following:

技术性能表(三种产品除固定方式不同外,其余特性均相同)

Technological Performance(the three type products have same performance,except for installation way)

型号
Type
外形尺寸mm
Piguration Dimension mm
最佳荷载(N)
Optical Load(N)
预压荷载(N)
Designed Compression Load(N)
极限荷载(N)
Margin Load(N)
竖向刚度
(N/mm)
Vertical Rigidity
(N/mm)
最佳荷载点水平刚度
(N/mm)
Horizontal Rigidity at Optical Load
(N/mm)
H h L1 L2 D1 D2
ZTA-10 72 6 115 150 80 10 100 67 133 7.6 5.5
ZTA-16 85 6 125 160 90 10 160 107 213 9 12
ZTA-25 100 6 140 180 100 10 250 167 333 11 16
ZTA-40 70 6 170 210 140 10 400 267 533 23 17
ZTA-42 115 6 150 190 110 16 420 280 560 14 19
ZTA-60 80 6 195 230 160 10 600 400 800 30 24
ZTA-65 115 6 150 190 110 16 650 433 867 22 30
ZTA-80 100 6 220 260 180 10 800 533 1067 34 26
ZTA-85 135 6 160 200 120 18 850 567 1133 32 40
ZTA-110 100 6 220 260 180 10 1100 733 1467 42 30
ZTA-115 135 6 160 200 120 18 1150 767 1533 44 54
ZTA-150 120 8 250 290 200 16 1500 1000 2000 58 45
ZTA-160 150 8 190 230 140 20 1600 1067 2133 46 60
ZTA-200 120 8 250 290 200 16 2000 1333 2667 86 38
ZTA-210 150 8 190 230 140 20 2100 1400 2800 60 76
ZTA-250 140 8 265 310 220 18 2500 1667 3333 98 50
ZTA-260 170 8 200 240 165 20 2600 1733 3467 55 65
ZTA-320 140 8 265 310 220 18 3200 2133 4267 128 70
ZTA-330 170 8 200 240 165 20 3300 2200 4400 76 83
ZTA-460 150 8 320 360 280 20 4600 3067 6133 137 80
ZTA-480 170 8 200 240 165 20 4800 3200 6400 140 81
ZTA-620 150 8 320 360 280 20 6200 4133 8267 185 126
ZTA-650 170 8 200 240 165 20 6500 4333 8667 200 130
ZTA-800 150 8 320 360 280 20 8000 5333 10667 236 145
ZTA-1050 170 8 360 400 320 20 10500 7000 14000 225 158
ZTA-1400 170 8 360 400 320 20 14000 9333 18667 308 200
ZTA-1900 170 8 360 400 320 20 19000 12667 25333 450 235
ZTA-2700 290 10 440 500 380 36 27000 18000 36000 595 200
ZTA-3600 290 10 440 500 380 36 36000 24000 48000 800 265
ZTA-4800 290 10 440 500 380 36 48000 32000 64000 1080 403

ZTA-1050至ZTA-4800型大载荷阻尼弹簧隔振器适用于柴油机隔振检测平台、大型隔振消声房和房屋基础隔振等场合。

ZAT-1050 to ZTA-4800 heavy load damping spring vibration isolator,are suitable on the occasion of vibration isolating detecting platform for diesel engines,large vibration isolating and noise reducing house,and fundamental vibration isolating for building as well.


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