Servo system principle | DKM machinery

Enery consumption comparision between electro hydraulic servo system and traditional flow and pressure system

High efficiency

DKM Electro-hydraulic servo system uses the slim motor design which the moment of inertia is samll,coupled with the most advanced DSP computing device ,the oriented vextor control of magnetic filed. The system has fast response.Some types of the servo motor can reach the maximum speed 2,500 r/m, and the cahnge of the speed from zero to maximum speed only needs 36ms. Axtion ,such as the opening  and closing of the mould , injection table movement ,ejector pin moving forward and backward ,obviously speed up, shortening the formation cycle time and improving productivity.

Precision

We take the high-precision spinned transformer which reach 4096 pluse/r as the feedback element of motor rotates speed (flow)and take the high-precision tension sensor as the feedback element of pressure.And control the pressure and flow with double-closed Loop.Realize  various control calculation suing thigh-speed DSP which make it real to keep the average pressure inaccuracy within 0.5 bar and the inaccuracy  of rotate speed control within 0.1%,and the hysteresis hoop is zero.Hence, the repeat accuracy of product weight is very high that meets customer's need to pursue high precision in production.

DKM servo motor system principle
Instruction fom machine controller--pressure close-loop /speed close loop--pressure sensor -directional valve--servo motor --oil pimp.

DKM machinery sincerely wish can cooperate with u ,any necessary please contact me freely.

Best regards!

Ashley