LT type elastic sleeve pin coupling

LT型弹性套柱销联轴器常用的场合是电机与减速机，电机与水泵的连接，属于非金属弹性元件挠性连轴器，其结构上与凸缘联轴器很相似，但是两个半连轴器的联接不用螺栓而用带橡胶或皮革套的柱销，以实现两半联轴节的联接。

LT typeElastic sleeve pin couplingThe structure is relatively simple, easy to manufacture, does not require lubrication, does not need to be bonded with metal vulcanization, easy to replace the elastic sleeve, does not need to move the half coupling, and has the properties of compensating the relative deviation of the two shafts and damping.The elastic sleeve works by compression and deformation. Because the thickness of the elastic sleeve is thin, the volume is small, and the elastic deformation is limited, the elastic pin sleeve coupling can compensate the axis displacement and elasticity, but the allowable compensation amount for the axis displacement is less. The elasticity is weak.The elastic sleeve pin coupling relies on the locking force of the pin group to generate the frictional moment on the contact surface, and compress the rubber elastic sleeve to transmit the torque.It is suitable for high-speed, low- and medium-power water pumps with high rigidity, high centering accuracy, low impact load, and low vibration reduction requirements.

LT型弹性套柱销联轴器是依靠弹性套柱销组的锁紧力而产生于接触面的摩擦力矩，并压缩橡胶弹性套来传递转矩，所以适用于高速，安装底座刚性好、对中精度较高的工况环境。但弹性套工作是受压缩变形的，由于弹性套的体积小且厚度较薄，弹性变形能力有限。所以LT型弹性套柱销联轴器虽可补偿轴线位移和弹性，却对轴线位移许用补偿量较少，弹性较弱。所以应选择冲击载荷不大、对减振要求不高。

LT型弹性套柱销联轴器（GB4323-2002）代替了（GB4323-1984）原TL型弹性套柱销联轴器，但性能与基本参数通用，径向许用补偿量为0.2~0.6mm；角向许用补偿量为1.5°~0.5°。如图所示LT型弹性套柱销联轴器的轴孔可选型号有：

Y型孔（长直孔）对应长度Y；

J型孔（直孔带沉孔）直孔对应长度L，沉孔对应长度L1；

J1型孔（短直孔）对应长度J1孔L；

Z型孔（锥形孔带沉孔）锥形孔对应长度L，锥度比1:10，沉孔对应长度L1。

LT型弹性套柱销联轴器参数