Research On The Through-going Shaft Of Load Sensing Hydraulic Transformer Controlled By Rotary Cylinder

In order to solve the problems of miniaturization and integration of HydraulicTransformer (HT), port-plate driven by hydraulic system, overall considering the propertiesof HT, such as load matching, low nosie, flow stability control, low cost etc., this paperanalyzes the basic performance of HT, working principle and control characteristics ofLoad-sensing Hydraulic Transformer (LSHT), puts forward a new three-port thrust plate ofHT controlled by rotary cylinder, and obtains the integration project of LSHT with athrough-going shaft. By optimal designing port-plate runner of LSHT, integrating theport-plate and back end cap to rotary cylinder, and the load-sensing valve to back end captogether, the paper completes structural integration, three-dimensional model andconstruction drawings of LSHT. According construction drawings, the output and responsecharacteristics of HT are verified based on AMESim simulation, which indicates that thesimulation results agree with theroy results, transformation ratio can reach2.5; the outputpressure of LSHT could adjust with the load pressure automatically, rise time of5MPa stepresponse is less than0.15s, and the LSHT has good stability and precision of load-sensing.The study of the Through-going shaft of Load Sensing Hydraulic Transformer controlled byrotary cylinder provides the theory reference and construction pattern for prototypemanufacture, and lays a afoundation for HT applied in Common Pressure Rail (CPR).