Large-flow balanced-radial-force internal meshing gear pump

The invention discloses a large-flow balanced-radial-force internal meshing gear pump and relates to the technical field of internal meshing gear pumps. The large-flow balanced-radial-force internal meshing gear pump comprises a left end cover, a right end cover and an internal meshing gear device, wherein the internal meshing gear device comprises a shell body, an internal gear ring, an input gear shaft, an output gear shaft and a flow isolating plate; and the input gear shaft and the output gear shaft are correspondingly equipped with a first external gear and a second external gear. Throughthe mounting of the flow isolating plate between the first external gear and the second external gear, a working oil chamber is divided into two centrosymmetric oil absorbing chambers and two centrosymmetric oil pressing chambers; the first external gear is meshed with the internal gear ring and the internal gear ring is driven to rotate; the internal gear ring is meshed with the second externalgear and the second extern