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DND大挠度金属弹簧隔振器
DND-type large deflection of the metal spring isolator
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DND大挠度金属弹簧隔振器

DND型大挠度金属弹簧隔振器是由焊接钢板和金属弹簧阻尼橡胶组合而成,具有大变形、低频性和高稳定性,分单组弹簧和双组弹簧,底板配有氯丁橡胶消声防滑垫。产品挠度分为25mm(1吋)、50mm(2吋)、75mm(3吋)、100mm(4吋),出厂时按挠度大小不同预压1/3,中间配有高度调节螺栓螺母作调校,在设备安装前后重量改变时,能使总体高度调整一致,避免管路标高发生错位。由于弹簧采用大直径,额定重量下的压缩高度之比大于80%,横向刚度大于垂直刚度,极限载荷与最大工作载荷之比大于1.6倍。具有材料应力小、抗疲劳、寿命长等优点,在产品两侧附设一个垂直限位装置以控制设备重量一旦被卸载时不会被提升,在正常操作时,限位器须与弹簧隔振器各部分不接触。

DND type deflection spring vibration isolator is a metal plate and weld metal spring damping rubber combination,with a large deformation,low-frequency and high stability,single-group springs and dual springs,floor muffer with neoprene non-slip mat.Product deflection is divided into 25mm(1 inch),50mm(2 inch),75mm(3 inch),100mm(4 inch),deflection of different size according to factory preload 1/3,the middle bolt with nut for adjusting height adjustment,change in weight before and after installation,the same can adjust the overall height,to avoid the occurrence of dislocation pipe elevation.Because the spring with large diameter,rated under the weight of the compression ratio of the height of more than 80%,horizontal than vertical stiffness,ultimate load and the ratio of maxium working load more than 1.6 times.With materials stress,fatigue,and long lifetime of the product on both side of the vertical limit device is not being promoted,in normal operation,the stopper with spring vibration isolator to be parts do not touch.

DND-1型(单组弹簧)简图

DND-1型产品技术特性表

Technological characteristic table

型号
Type
最大承载N
maximum load
不同挠度H mm Different deflection H mm W L1 L2 d M1
25 50 75 100
DND-1-50 500 130 150 175 200 100 150 120 12 M10
DND-1-100 1000 130 150 175 200 100 150 120 12 M10
DND-1-200 2000 180 200 225 250 140 240 200 14 M12
DND-1-400 4000 180 200 225 250 140 240 200 14 M12
DND-1-600 6000 210 230 255 280 160 270 230 16 M14
DND-1-800 8000 210 230 255 280 160 270 230 16 M14
DND-1-1200 12000 230 255 280 310 190 300 260 18 M20
DND-1-1800 18000 230 255 280 310 190 300 260 18 M20
DND-1-2500 25000 230 255 280 310 190 300 260 18 M20
DND-1-3500 35000 250 275 300 320 320 330 280 22 M24
DND-1-5000 50000 250 275 300 320 320 330 280 22 M24

DND-2型(双组弹簧)简图

DND-2型产品技术特性表

Technological characteristic table

型号
Type
最大承载N
maximum load
不同挠度H mm Different deflection H mm W L1 L2 d M1
25 50 75 100
DND-2-400 4000 180 200 225 250 140 380 340 14 M12
DND-2-600 6000 210 230 255 280 160 430 390 16 M14
DND-2-800 8000 210 230 255 280 160 430 390 16 M14
DND-2-1200 12000 230 255 280 310 190 490 450 18 M20
DND-2-2000 20000 230 255 280 310 190 490 450 18 M20
DND-2-3000 30000 250 275 300 320 210 540 490 22 M24
DND-2-4000 40000 250 275 300 320 210 540 490 22 M24
DND-2-6000 60000 270 295 320 345 230 600 550 26 M26
DND-2-8000 80000 270 295 320 345 230 600 550 26 M26
DND-2-10000 100000 300 325 350 380 250 650 600 30 M27
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