DL polygonal rubber coupling

时间：2013-08-01 17:58　作者：admin　点击： 次
DL polygonal rubber coupling detailed parameters
LD型多角形橡胶联轴器是用橡胶材料作成截面为6角（或8角）形的弹性件，在每一处嵌有与橡胶硫化后粘结在一起的套管,利用穿过套管的6个(或8个)螺栓,交错地与主、从动端上的半联轴器凸缘联结。 多角形橡胶联轴器的特点是结构简单,不用润滑,装拆方便,具有缓和传动轴系的扭转振动和冲击载荷,防止传动轴系共振并能补偿两轴线相对偏移的性能,适用于中等转矩50-8000N.m的轻工,工程机械,矿山机械等行业,适用于有粉尘,水分的工况环境,工作温度为-30-60℃,用于振动筛的联接,效果显著。 LD1-LD6型为六角形，LD7-LD11型为八角形。
 
Polygonal rubber couplings mostly use polyurethane as the rubber material. Polyurethane has many characteristics such as high temperature resistance, long life, simple structure, and strong shock absorption. Therefore, most couplings made of polyurethane have very high stability and long life. Lengthen.This kind of coupling is simple in structure, easy to assemble and disassemble, does not need lubrication and maintenance, has good elasticity, has good damping and buffer performance to compensate the relative displacement of the two shafts, and can be used as a flexible universal coupling, and it is efficient High, no noise, suitable for medium and small torque environment with dust and moisture, the working temperature range is -30-60℃.This kind of coupling has been standardized production, called LD polygonal rubber coupling, the standard number is JB/T5512-1991, there are 11 specifications, LD1-LD6 adopts hexagonal rubber ring, LD7-LD11 adopts octagonal rubber ring.The allowable relative torsion angle is 4°.The allowable relative angular compensation amount can reach 5°; the instantaneous impact torque is not 2-3 times the nominal torque.

DL Polygonal Rubber Coupling is made of rubber material, made into a 6-corner (or octagonal) elastic piece with a circular cross-section, and a sleeve bonded with rubber after vulcanization is embedded in each position. The 8 (or 6) bolts passing through the casing are alternately connected with the half coupling flanges on the main and driven ends. The polygonal rubber coupling has a simple structure, does not require lubrication, is easy to assemble and disassemble, and has a gentle transmission. The torsional vibration and impact load of the shafting can prevent resonance of the transmission shafting and can compensate for the relative deviation of the two axes.

 

The basic parameters and main dimensions of LD polygonal rubber coupling (JB/T 5512-1991) (unit: mm)

model Nominal torque Tn/Nm Allowable speed [n]/r/min Allowable torsion angle/(°) Axle hole diameter d1, d2, dz Length of shaft hole D D1 L2 L3 A Moment of inertia kg.m2 Mass kg
Y type J1, Z1 type
L L1
LD1 50 5000 5 12, 14 32 - 96 42 75 28 75 0.001 1.9
16, 18, 19 42 30
20, 22, 24 52 38
25 62 44
LD2 80 4000 16, 18, 19 42 30 118 55 85 32 85 0.0031 3.9
20, 22, 24 52 38
25, 28 62 44
30, 32 82 60
LD3 160 3150 4 20, 22, 24 52 38 142 68 105 46 105 0.0089 8
25, 28 62 44
30-32-35 82 60
40 112 84
LD4 280 2500 22, 24 52 38 182 92 120 52 120 0.026 14.2
25, 28 62 44
30-32-35 82 60
40, 42, 45, 48, 50, 55 112 84
LD5 560 2000 25, 28 62 44 235 122 140 62 140 0.095 31.4
30-32-35 82 60
40, 42, 45, 48, 50, 55, 56 112 84
60, 63, 65, 70, 71 142 107
LD6 800 1800 28 62 44 258 128 150 68 150 0.132 35.6
30-32-35 82 60
40, 42, 45, 48, 50, 55, 56 112 84
60, 63, 65, 70, 71 142 107
LD7 1250 1600 35, 38 82 60 282 148 185 78 185 0.287 58.4
40, 42, 45, 48, 50, 55, 56 112 84
60, 63, 65, 70, 71, 75 142 107
80, 85 172 132
LD8 2500 1250 40, 42, 45, 48, 50, 55, 56 112 84 372 190 230 100 230 0.952 117.1
60, 63, 65, 70, 71, 75 142 107
80-85-90 172 132
100, 110 212 167
LD9 3550 1120 45, 48, 50, 55, 56 112 84 420 220 270 115 270 1.981 171.8
60, 63, 65, 70, 71, 75 142 107
80-85-90 172 132
100, 110, 120, 125, 130 212 167
LD10 5600 1000 50, 55, 56 112 84 465 242 295 130 295 3.606 252.9
60, 63, 65, 70, 71, 75 142 107
80-85-90 172 132
100-110-120 212 167
130, 140, 150 252 202
LD11 8000 900 60, 63, 65, 70, 71, 75 142 107 520 260 365 150 365 7.48 386.7
80-85-90 172 132
100-110-120 212 167
130, 140, 150 252 202
160 302 242

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