The three-jaw coupling for pumps uses several pins made of non-metallic materials, which are placed in the mating holes between the two halves of the coupling and the inner surface of the outer ring, and the two halves of the coupling are realized by transmitting torque through the pins. The coupling has the following characteristics:
(1) The transmission torque is large. At the same torque, the rotation diameter is mostly smaller than that of the gear coupling, and the volume is lighter. It can partially replace the gear coupling.
(2) Compared with gear couplings, it has simple structure, fewer components, and is more convenient to manufacture. It does not require gear processing machine tools.
①The middle sliding block of the claw coupling is made of cloth bakelite or nylon;
②Small size, light weight, simple structure, easy to install, cheap, often used in small power occasions;
③Small inertia force, suitable for two-axis connection with low torque, high speed and no sharp impact.The transmission torque of nylon slider is small, but it is suitable for high-speed operation and does not need lubrication;
④许用相对径向位移(0.01d+0.25)mm,d为轴直径(mm);许用相对角位移0度40分;联轴器的附加径向力为(0.1~0.3)P;
⑤The standard code of the water pump industry is Bl104, the maximum allowable torque is 850N·m, and the large shaft diameter is 50mm