轮胎式与膜片联轴器对比

RL系列膜片联轴器是结合欧洲与日本等优质产品基础之上独立开发的高品质产品。膜片式联轴器拥有更小的体积，更大的同型扭矩和更合理的配比尺寸，补偿范围大，质量轻转动惯量小螺栓与膜片组的孔连接部位采用特殊的弹性垫套设计，极大减小了孔缘部位应力的集中，杜绝膜片的撕裂交损，延长使用寿命。

膜片弹性联轴器采用模块化设计，装配简单，维修更换快捷。性能远超国标JM系列产品，大量应用于风机系统，汽轮机组及其他重要工业领域。

弹性膜片联轴器在传递扭矩的同时通过弹性膜片的的变形来补偿轴向和角向的位移，是一种高性能的金属弹性挠性联轴器。弹性联轴器结构紧凑，传递扭矩大，使用寿命长，免维护，耐高温，耐酸碱防腐蚀，适用于高温高速及有腐蚀工况环境的轴系传动。

The steel lamina coupling is an efficient flexible coupling with no back clearance and free from maintenance. Due to its unique structural design, it can achieve the perfect delivery of torque. Meanwhile, it has excellent performances, including large axial and radial compensation ability, low reply feedback force and wide thermal adaptability, etc. With different change design, it can be applied at most power transmission sites.

Rokee's RL series steel laminae coupling is a high-quality product developed independently on basis of combination of advanced products from Europe and Japan, etc. It has smaller size, larger torque of the same model, more reasonable proportioning size, large compensation scope, light weight and small rotational inertia. With modularized design, it’s easy for assembly, maintenance and replacement. Its performance far exceeds the one of JM series diaphragm coupling. It’s widely applied in the fields of fan systems, turboset and other pumps, etc.

轮胎联轴器采用轮胎体状橡胶元件，与两个半联经过螺栓联接，实现扭矩传递和位移补偿。橡胶轮胎联轴器具有较高的弹性性能，扭转刚度小，减震能力强，轴向补偿能力较大，有良好的阻尼性能。

弹性轮胎联轴器轮胎体是轮胎联轴器必要的备件之一，相应的分为UL、LA、LB轮胎体。轮胎式联轴器分为凸型和凹型两大类，凸型又分为带骨架整体式、无骨整体式和径向切口式三种。轮胎环内侧用硫化方法与钢质骨架粘接成一体，骨架上的螺栓孔处焊有螺母。装配时用螺栓与两半联轴器的凸缘连接，依靠拧紧螺栓使轮胎与凸缘端面之间产生的摩擦力来传递转矩，轮胎环工作时发生扭转剪切变形，故轮胎联轴器具有很高的弹性，补偿两轴相对位移的能力较大，并有良好的阻尼，而且结构简单、不需润滑、装拆和维护都比较方便。

轮胎式联轴器缺点是承载能力不高、外形尺寸较大，随着两轴相对扭转角的增加使轮胎外形扭歪，轴向尺寸略有减小，将在两轴上产生较大的附加轴向力，使轴承负载加大而降低寿命。轮胎联轴器高速运转时，轮胎外缘由于离心力的作用而向外扩张，将进一步增大附加轴向力。为此，在安装联轴器时应采取措施，使轮胎中的应力方向与工作时产生的应力方向相反，以抵消部分附加轴向力，达到改善联轴器和两轴承的工和条件。

轮胎式联轴器由于种种原因使其质心或惯性主轴与其加转轴线不重合，在运转时将产生不平衡离心惯性力、离心惯性力偶和动挠度（振型）的现象，称为转子的不平衡现象，这种不平衡现象必然引起轴系的振动，从而影响机器的正常工作和使用寿命，因而对其必须加以重视。

The tyre coupling adopts tyre body-shaped rubber elements, which are connected with two semi-couplings through bolts to realize torque transmission and displacement compensation. Tyre coupling has high elastic performance, small torsional rigidity, strong damping capacity, large axial compensation capacity, and good damping performance.