Double rotor bidirectional variable displacement pump or motor

Abstract

The invention discloses a double-rotor two-way variable displacement pump or motor. The central axis of the first accommodation chamber and the central axis of the second accommodation chamber intersect and the angle between them is adjustable; the tail end of the first plunger and the second The tail ends of the two plungers are hinged one by one, and the centers of rotation of all hinges are on the angle bisector of the included angle; the present invention utilizes the V-shaped base structure with adjustable included angle to realize the variable working volume of the pump or motor Adjustability enables the displacement of the entire V-shaped pump to realize stepless adjustment of positive and negative volumes without changing the direction of rotation and working fluid path, thereby realizing stepless adjustment and function switching of pump and motor functions under the same working conditions. Compared with the existing pumps and motors, it can provide greater processing capacity and improve efficiency with the same volume, and can perform stepless flow adjustment and realize bidirectional function (that is, the flow direction can be interchanged under the same steering conditions). It is suitable for Different needs in various fields, with good adaptability.

Description

technical field [0001] The invention relates to the field of transmission drive, in particular to a double-rotor bidirectional variable pump or motor. Background technique [0002] Hydraulic motors and hydraulic pumps are reversible fluid machines, which are relatively common equipment in many fields such as energy, medicine and chemical industry, and equipment manufacturing. Traditional hydraulic motors and hydraulic pumps use plungers as energy conversion components, and use the inclination angle of the swashplate to realize the reciprocating motion of the plungers to realize the suction and output of liquid, while the process of hydraulic motors is reversed; the plunger pump (or hydraulic pressure pump) of this structure Motor) to adjust the flow rate by adjusting the inclination angle of the swash plate. The pump or hydraulic motor with the above structure is designed with asymmetrical load, the system wears a lot, the lubrication between the swash plate and the sliding...

AI Technical Summary

Problems solved by technology

The pump or hydraulic motor with the above structure is designed with asymmetrical load, the system wears a lot, the lubrication between the swash plate and the sliding shoe is difficult, the friction loss is large, the axial flow distribution mechanism has a large discharge flow, and the unfavorable load is large, and the space at the end of the swash plate is wasted. The overall displacement is small, and the cantilever The structure cannot effectively overcome the overturning moment

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