柱销靠背轮联轴器之间间隙

靠背轮联轴器用来将不同机构中的主动轴和从动轴牢固地联接起来一同旋转，并传递运动和扭矩的机械部件。有时也用以联接轴与其他零件（如齿轮、带轮等）。

靠背轮常由两半合成，分别用键或紧配合等联接，紧固在两轴端，再通过某种方式将两半联接起来。

靠背轮联轴器可兼有补偿两轴之间由于制造安装不精确、工作时的变形或热膨胀等原因所发生的偏移（包括轴向偏移、径向偏移、角偏移或综合偏移）；以及缓和冲击、吸振。

靠背轮为俗称，专业叫法为联轴器以及法兰，用于机械设备的连接。

柱销联轴器是利用一端套有弹性套（橡胶材料）的柱销，装在两半联轴器凸缘孔中，以实现两半联轴器的联接。

弹性柱销联轴器是一种结构简单制造容易，无需润滑，装拆弹性柱销便捷的传动基础件，利用两个带法兰孔的半联和置于起重的非金属弹性柱销来传递扭矩，适用于中低速和中低扭矩场合。

弹性柱销齿式联轴器采用非金属弹性柱销和两个带齿形半联以及一个外圈的齿形套环设计，利用非金属弹性的变形来传递扭矩同时缓冲减震，补偿角向位移。

弹性套柱销联轴器设计简单巧妙，适用性较广的联轴器，利用带弹性套的柱销联接两个带销孔的半联，实现扭矩传递的同时兼具较大的角向补偿，同时减震缓冲性能良好，可以用在速度较快的场合，无需润滑，销套更换便捷。

The pin gear coupling is designed with non-metallic flexible pin, two toothed semi-couplings and a toothed sleeve ring with an outer ring. It uses non-metallic flexible deformation to transfer torque and cushion shock and compensate angular displacement. The flexible pin coupling is a basic transmission parts that has simple structure, needs no lubrication, and is easy to manufacture, install and disassemble the flexible pin. It uses two semi-couplings with flange holes and a non-metallic flexible pin for crane to transmit torque, suitable for low-to-medium speed and low-to-medium torque occasions. The design of the elastic sleeve pin coupling is simple and clever in design and has wide applicability. It uses the pin with elastic sleeve to connect two semi-couplings with pin holes to realize torque transmission and larger angular compensation. At the same time, Pin and bush couplings has good shock absorption and buffering performance, which can be used in high-speed occasions without lubrication and requiring easy pin sleeve replacement.