International Journal of Mechanical Engineering

This paper introduces the derivation process of trajectory equations of two types of multi-action internal curve hydraulic motors. Velocity and polar diameter can be derived according to degree acceleration and amplitude distribution, and then acceleration equations and trajectory equations can be written out in sections, which has certain reference significance for engineering and technical personnel to carry out theoretical research. For the multi-action internal curve hydraulic motor, in the design of its stator guide curve because of the symmetry of only one function of the curve equation can be calculated, and during an action of the plunger push out and return symmetry, so only the curve equation of the plunger push out section can be required. The plunger push-out section has a working amplitude of φx. According to the curve characteristics of stator guide rails with equal acceleration and equal deceleration, the curve of a plungers working amplitude Angle is composed of zero speed zone, acceleration zone, constant speed zone and deceleration zone. The acceleration curve with amplitude and Angle correction is composed of zero velocity zone, equal acceleration zone, correction zone and equal deceleration zone.

Multi-acting internal curve radial piston motor; Locus equation