Hydraulic pump

• Main Author: AKAMI TOSHIYA
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention provides a hydraulic pump which can reduce starting torque of a driving source. A hydraulic pump (10) is provided with: a cylinder block (30) that has a plurality of cylinder holes (32) and is arranged so as to be rotatable; a piston (38) movably held in each of the cylinder holes (32); a swash plate (40) that controls the amount of movement of the piston (38) in accordance with the magnitude of the deflection angle; a first pressing member (50) for pressing the swash plate (40) in the direction in which the deflection angle of the swash plate (40) decreases; and a second pressing member (60) for pressing the swash plate (40) in the direction in which the deflection angle of the swash plate (40) increases by pressure supplied from the outside. 本发明提供一种液压泵，其能够减小驱动源的起动转矩。液压泵(10)包括：缸体(30)，其具有多个缸孔(32)，且被配置为能够旋转；活塞(38)，其移动自如地保持在各缸孔(32)内；斜板(40)，其根据偏转角的大小来控制活塞(38)的移动量；第1推压部件(50)，其用于朝向斜板(40)的偏转角变小的方向推压斜板(40)；以及第2推压部件(60)，其用于在从外部供给来的压力的作用下朝向斜板(40)的偏转角变大的方向推压斜板(40)。