Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance

摘要

A first toothed wheel 1 coupled to the shaft 10, a second toothed wheel 2 coupled with the first toothed wheel 1 and coupled to the shaft 20, (3), a front flange (6) forming the inlet fluid duct and the outlet fluid duct and receiving the support parts (4, 5), a projection part (13) protrudes forward and is connected to the shaft (10) of the first toothed wheel and the projecting portion (13) of the shaft is connected to a motor (M) or a rod, and a rear lid Characterized in that the gears of the gear wheels (1, 2) are of a spiral type and the gear pump or the hydraulic gear motors (100, 200) An intermediate flange 8 disposed between the housing 6 and the case 3, the intermediate flange 8 comprising a first chamber 80 connected to the inlet or outlet fluid duct by a connecting duct 82, (T) of the shaft (10) of the first toothed wheel in such a manner as to allow movement of the first toothed wheel to the shaft (10) and to compensate for the axial force (A) applied to the first toothed wheel A compensation ring (9) inserted and mounted in a first chamber (80) of an intermediate flange, said compensation ring comprising a collar (91) projecting radially from the cylinder (90) and an interior hollow cylinder (D1, d2) of the cylinder (91) and the cylinder (90) are selected to compensate for the axial force (A) applied to the first toothed wheel.