Elastic pin coupling for Henan pump

For pumpElastic pin couplingAs the name suggests, it is a coupling specially designed for pump products, which can be used in various gear oil pumps, high temperature oil pumps, high pressure oil pumps and various water pumps.The elastic pin coupling for pump has a simple and reasonable structure, including two halves of metal coupling (cast steel) and elastic sleeve pin. It has good elasticity and ability to compensate axis displacement like ordinary elastic pin couplings. , But when the relative angular displacement is large, it is easy to wear.

Due to the excellent structural design of the elastic pin coupling for the pump, the product is easy to load and unload without moving the two couplings.The material of the elastic element (column pin) is generally nylon 6, which has the ability to slightly compensate for the deviation of the two axes. The elastic part is sheared during work and has poor working performance. Therefore, the product should be used within the scope of use and cannot be overloaded.The allowable relative radial displacement is 0. The elastic pin coupling for pumps is 4-0.2mm; the allowable relative angular displacement is 0 degrees and 40 minutes.The standard of the pump elastic pin coupling produced by AIA in the water pump industry is Bll01, its larger allowable torque is 83 pump elastic pin coupling 6N·m, and the larger shaft diameter is 200mm.

Introduction of elastic sleeve pin coupling for pump:

①The pin of the elastic sleeve pin coupling is covered with a rubber ring, which has elasticity and the ability to compensate the axis displacement, but when the relative angular displacement is large, it is easy to wear;

②Simple structure, convenient installation, easy replacement, small size, light weight, large transmission torque, widely used in various rotary pumps;

③The allowable relative radial displacement is 0.14-0.2mm; the allowable relative angular displacement is 0 degrees 40 minutes;

④ The additional radial load caused by the relative displacement of the two shaft axes is (0.1-0.3)P;

⑤The standard of the water pump industry is Bll01, its maximum allowable torque is 8316N?m, and the large shaft diameter is 200mm.

The elastic pin coupling for pump uses a pin with an elastic sleeve (rubber material) at one end, which is installed in the flange hole of the two halves of the coupling to realize the connection of the two halves of the coupling.Since the material of the elastic sleeve pin coupling is cast iron, its weight is 38.8 kg, so that the motor wastes a lot of electric energy during the water supply operation, which affects the efficiency of the unit and increases the operating cost.

Most of the centrifugal and prime movers use couplings as the power transmission mechanism.The elastic pin coupling is one of the widely used couplings because of its good performance, large transmission torque and easy use.Nowadays, the elastic pin coupling is widely used.The coupling is composed of a pump coupling 10, a motor coupling 11 and a pin assembly 12, and the pin assembly 12 connects the pump coupling 10 and the motor coupling 11.The disadvantage of the elastic pin coupling is that the distance between the pump coupling 10 and the motor coupling 11 is 4-10 mm.When the seal or bearing of the pump needs to be replaced, the bearing parts or seals cannot be removed due to the small intermediate distance. Remove the motor, or remove all the pump from the connecting pipeline and base. The pump needs to be calibrated again when reinstalling. The coaxiality with the motor is time-consuming and laborious, which brings inconvenience to maintenance and repair work.