Large-displacement, low-abrasion and trapped-rubber-reducing heat dissipation rubber gear pump and working method thereof

The invention discloses a large-displacement, low-abrasion and trapped-rubber-reducing heat dissipation rubber gear pump and a working method thereof. Two driving shaft sleeves are fixed to a driving shaft, driven shaft sleeves are fixed to the two ends of a driven shaft correspondingly, the outer cylindrical surfaces of the two driving shaft sleeves are attached to the wall surfaces of two first through grooves correspondingly, and the outer cylindrical surfaces of the two driven shaft sleeves are attached to the wall surfaces of the two first through grooves correspondingly; the driving gear and the driven gear are respectively fixed on the driving shaft and the driven shaft; pressure equalizing grooves are formed in one sides of the driving shaft sleeve and the driven shaft sleeve, and pressure relief grooves are formed in the other sides. The glue trapping phenomenon is solved through the pressure relief groove, the pressure between the closed cavity and the discharging cavity is balanced through the pres