Application and development of speed regulating hydraulic coupler

The speed regulating hydraulic coupler plays an important role in the speed regulation and energy saving application market of the fan and pump in China, and its remarkable effect on energy saving and emission reduction is commendable. So it has been developing rapidly in recent years. Because of the continuous expansion of the application field of the speed regulating hydraulic coupler, the variety and quantity of the manufacturers, products and products are increasing. Especially when the Central Committee puts forward the idea of "energy saving and emission reduction and national action", the speed regulating fluid coupling is duty bound to play the main force of energy saving and emission reduction for fans and pumps.

At present, the variable speed hydraulic couplings at home and abroad are developing towards many varieties and types, especially in the direction of complete functions, simple structure, small size and light weight. As the hydraulic industry research institutions, enterprises, scholars and engineers must carefully choose those new products with good market prospects, comprehensive functions, material saving, good economic benefits for the development of the country, and conducive to business development.

The working fluid of the fluid coupling (working medium) acts as the medium of torque transmission by the coupling. The number of liquid filled has great influence on the torque and overload protection of the coupling. For the same type of coupler, the amount of liquid charge directly affects the torque of the coupler. The basic law is that in the prescribed liquid filling range, the more fluid charge, the greater the torque transfer torque.

Liquid coupling range is 40 of the total volume to 80%, not allowed beyond this range, but does not allow the full, because the filling amount exceeds the volume of 80% coupler rotation, due to overload and rapid warming boost, working fluid volume expansion, increased pressure within the coupling, breaking the seal, causing leakage, even cause coupling shell cracking mechanical damage. The liquid filling volume is less than 40% of the volume. The bearing may not be lubricated enough. The coupler is not fully utilized, and the volume is large. It is not significant. It is recommended to choose a small size model. Oil medium is generally used in hydraulic coupling. The working fluid is recommended to use No. 32 turbine oil, No. 6 hydraulic transmission oil and No. 8 hydraulic transmission oil.