Composite oil passing hole of axis flow distribution cycloid hydraulic motor

Abstract

The invention relates to a composite oil passing hole of an axis flow distribution cycloid hydraulic motor, and belongs to the technical field of hydraulic transmission. Oil passing holes in the two end faces of a separating disc of the axis flow distribution cycloid hydraulic motor are different in shape, one end of an oil liquid channel is composed of two segments of circular arcs, the other end of the oil liquid channel is composed of four segments of circular arcs, and the two ends are in smooth transition. Compared with a separating disc structure of an axis flow distribution cycloid hydraulic motor and a manufacturing technology in the prior art, due to the improved structure, the oil passing area of the separating disc is increased, resistance in the liquid flow passing process is reduced, a gap of meshing shaft holes of a flow distribution valve of a coaxial flow distribution structure is increased, possible leakage is reduced, pressure losses are reduced, and the product efficiency is improved.

Description

technical field [0001] The invention relates to a spacer hole, in particular to a composite oil passage hole of a spacer for a shaft distribution cycloidal hydraulic motor, and also relates to a processing method thereof, which belongs to the technical field of hydraulic transmission. Background technique [0002] The cycloidal hydraulic motor is not only a commonly used hydraulic drive device, but also a commonly used hydraulic actuator to realize the conversion of hydraulic energy into mechanical energy. The cycloidal hydraulic motor is a low-speed high-torque motor, which has the advantages of small size, high unit power density, high efficiency, and wide speed range, so it has been widely used. [0003] Shaft distribution The flow distribution mechanism of the cycloidal hydraulic motor is located in the radial distribution of the flow distribution shaft of the output shaft and the distribution hole of the body shell that cooperate with each other. Different numbers of di...

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Problems solved by technology

[0004] As far as the applicant knows, the flow distribution mechanism of the existing shaft distribution cycloidal hydraulic motor communicates with the column-mounted rotor stator pair through a partition plate, and the oil through hole of the partition plate is connected with the oil through hole of the flow distribution mechanism, which is a concentric circular hole. Or the waist-shaped hole in which the concentric semicircular hole communicates with the connecting bolt hole. Due to the position limitation of the oil through hole of the distribution mechanism, the gap between the structure and the distribution hole of the distribution mechanism is small, resulting in the oil hole of the partition plate and the flow distribution mechanism. The gap of the distribution hole is small, which is not conducive to preventing oil leakage, and the hydraulic damping is caused by the restriction of the oil hole of the partition plate

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