Marine high-speed cycloid gear pump

• Main Author: XU DONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2011
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

The utility model relates to a gear pump, in particular to a marine high-speed cycloid gear pump, and aims to solve the technical problems existing in the prior art that both the internal gearing gear pump and the traditional cycloidal gear pump can not guarantee that an oil pump can undergo higher rotational speed, the oil pressure pulsation and noises are higher, the transmission during high-speed operating is unstable, and the volume efficiency is lower, etc,. The marine high-speed cycloid gear pump comprises a pump body (1) and a pump cover (2), and an oil suction cavity (3) and a pressure oil cavity (4) which are arranged between the pump body (1) and the pump cover (2); the oil suction cavity (3) and the pressure oil cavity (4) are communicated with an oil opening (5); a transmission shaft (6) penetrates through the pump body and the pump cover, an inner rotor (8) is fixed in the transmission shaft through a flat key (7), an outer rotor (9) is meshed with the outside of the inner rotor eccentrically, th