LM type basic plum blossom elastic coupling

时间：2013-08-15 22:30　作者：admin　点击： 次
Detailed parameters of LM basic plum-shaped elastic coupling
The LM type basic plum-shaped elastic coupling is composed of two half-couplings with the same shape of the claws and elastic elements. The plum-shaped elastic element is placed between the two halves of the coupling claws to realize the two halves. The coupling of the coupling.When replacing the elastic element of the basic quincunx elastic coupling, the two halves of the coupling need to move along the axial direction to achieve the purpose of replacing the elastic element.
The materials of the elastic elements are polyurethane and cast nylon.According to different working conditions, choose different materials, such as fans, water pumps, light industry, textiles, etc., when the load is stable and the load changes little, polyurethane can be selected.Most of the elastomers currently used are polyurethane.This coupling is widely used in water pumps, oil pumps, machine tools and other industries.
The plum-shaped elastic coupling has the following characteristics: the plum-shaped elastic coupling has simple structure, small radial size, light weight, and small moment of inertia. It is suitable for medium and high-speed applications. The plum-shaped elastic coupling is stable and reliable in operation and has good performance. Vibration reduction, buffering and electrical insulation properties.The quincunx-shaped elastic coupling has greater axial, radial and angular compensation capabilities. The quincunx-shaped elastic coupling has high-strength polyurethane elastic elements that are wear-resistant and oil-resistant, have large load-bearing capacity, long service life, and are safe and reliable. No lubrication is required, maintenance workload is small, and continuous long-term operation is possible.

梅花形弹性联轴器主要适用于起动频繁、正反转、中高速、中等扭矩和要求高可靠性的工作场合，例如：冶金、矿山、石油、化工、起重、运输、轻工、纺织、水泵、风机等。公称转矩为25～12500N.m，许用转速为15300～1900r/min，轴孔直径为12～160mm。

 

Basic parameters and main dimensions of LM (formerly ML) basic plum-shaped elastic coupling (GB/T 5272-2002) (unit: mm)

model Old model Nominal torque/Nm Allowable speed/r/min Diameter of shaft hole d1,d2,dz L Lo D Elastic part model Weight/kg Moment of inertia/kg.㎡
Elastic part hardness
a/Ha b/Hb
80 + 5 60 + 5
LM1 ML1 25 45 15300 12,14 35 86 50 MT1 0.657 0.00022
LM2 无 50 100 12000 16,18,19 38 95 90 MT2 0.923 0.00044
LM3 ML2 100 200 10900 20,22,24 40 103 70 MT3 1.407 0.00087
LM4 ML3 140 280 9000 22,24 45 114 85 MT4 2.182 0.002
LM5 ML4 350 400 7300 25,28 50 127 105 MT5 3.601 0.0049
LM6 ML5 400 710 6100 30,32,35,38, 40,42,45,48 55 143 125 MT6 6.075 0.0114
LM7 ML6 630 1120 5300 35*,38*，40*,42*,45,48,50,55 60 159 145 MT7 9.089 0.0232
LM8 ML7 1120 2240 4500 45*,48*,50,55,56 70 181 170 MT8 13.561 0.0468
LM9 ML8 1800 3550 3800 50*,55*,56*，60,63,65,70,71,75，80 80 208 200 MT9 21.402 0.1041
LM10 ML9 2800 5600 3300 60*,63,65*,70,71,75，80,85,90,95，100 90 230 230 MT10 32.03 0.2105
LM11 ML10 4500 9000 2900 70*,71*,75,80*,85*,90,95，100,110,120 100 260 260 MT11 49.515 0.4338
LM12 ML11 6300 12500 2500 80*,85*,90*,95*，100,110,120,125，130 115 297 300 MT12 73.448 0.82
LM13 ML12 11200 20000 2100 90*,95*，100*,110*,120*,125*，130,150,160 125 323 360 MT13 103.86 1.672
LM14 ML13 12500 25000 1900 100*,110*,120*,125*，130*,140*,150 160 135 333 400 MT14 127.59 2.499
Note: 1. Mass and moment of inertia are approximate values ​​calculated based on the material for cast steel, L recommendation, and minimum shaft hole. 2. The diameter of shaft hole with * can be used for Z-shaped shaft hole. 3.a and b are the hardness codes of the two elastic materials.

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