External-rotor radial plunger hydraulic pump integrated with motors

A technology of radial columns and external rotors, which is applied to pumps, multi-cylinder pumps, mechanical equipment, etc., can solve the problems of many energy transmission links, the decrease of pump volume efficiency, and the easy generation of air bubbles in oil, so as to improve the utilization of energy High efficiency, avoiding the decline of volumetric efficiency, and high energy utilization
CN103233873BInactive Publication Date: 2015-06-03XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

An external-rotor radial plunger hydraulic pump integrated with motors is of a external-rotor and internal-stator structure. The inside of a rotor is fixedly provided with a radial equidistant cam which is used for absorbing oil and pressing oil. When the cam is driven by the rotor to rotate, the rotation is converted into a linear reciprocating motion by a bearing and a plunger pin to obtain high-pressure oil liquid; the oil distribution in every plunger cavity is achieved through a one-way cone valve which is arranged on a stator, and the opening and the closing of the one-way valve are controlled through the pressure inside the plunger cavity; and the external-rotor radial plunger hydraulic pump is driven to operate by disk motors which are arranged on both sides of a pump body, the stator of each disk motor is fixed connected to the floor, the rotors of the disk motors are designed into one part with the rotor of the external-rotor radial plunger hydraulic pump, so that the integrated design of the motors and the external-rotor radial plunger hydraulic pump is achieved. The external-rotor radial plunger hydraulic pump integrated with the motors has the advantages of being compact in structure, simple in transmission, symmetric in force bearing, high in energy utilization rate, high in volume efficiency and pump-motor-integrated.
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Description

technical field

[0001] The invention belongs to the technical field of radial plunger hydraulic pumps, in particular to an outer rotor radial plunger hydraulic pump integrated with a motor. Background technique

[0002] The hydraulic pump used to provide high-pressure oil with stable flow and pressure for the hydraulic system is a key component in the hydraulic transmission system. Radial piston hydraulic pumps are widely used due to their significant advantages of small wear, large displacement, and high volumetric efficiency. In highly dynamic hydraulically operated applications such as: die casting and injection molding technology. For some industries that operate at high pressure, such as injection molding machines in the plastics industry and die-casting departments in the automotive industry, the application of radial piston hydraulic pumps will become the main trend in the future, and it will also be more widely used in metallurgy and mining in the future. , forging,...

Claims

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