Master and auxiliary vane pump rotor processing technique

Abstract

The invention relates to a master and auxiliary vane pump rotor processing technique, which is designed so as to solve the technical problem that the rotor processing technique in the current like products is not good enough. The design key points thereof are that the main processing technique of the rotor is as follows: an inner splined hole is broached by a centering broach with minor diameter; a long and round groove is broached and processed by a group of broaches; a ladder-shaped semi-groove is processed through linear cutting; a bladed groove is ground by a cubic boron nitride grinding wheel and tool setting is carried out when each blade is ground. An internal spline of the rotor processing technique adopts the centering broach with minor diameter; the long and round groove is broached by a first long and round groove broach, a second first long and round groove broach and a third first long and round groove broach and the rotor is fixed in a jig; a grinding blade groove adopts a hydraulic pressure jig and the cubic boron nitride grinding wheel. The processing technique has high precision and is reliable; the rotor processed by the technique has stable quality and high surface hardness, is suitable for matching of the like products; and the processing method is suitable for the processing and manufacturing of the like products.

Description

technical field [0001] The invention relates to the processing of the rotor of a dual vane pump, which is a process for processing the rotor of a dual vane pump. Background technique [0002] At present, the two-stage vane pump sold on the market is in a pump body, and two sets of stators and rotors are connected on a rotating shaft to form two vane pumps. The two vane pumps are connected in series, that is, the oil discharge port of the first-stage pump is also the oil suction port of the second-stage pump, thereby increasing the working pressure of the entire pump outlet. The pressure valve makes the pressure difference between the inlet and outlet of the two pumps equal. According to the force status of the blades, it can be divided into mother blade type, double blade type, and pin blade type. Among them, the rotor is one of the key parts of the two-stage vane pump, and its processing quality has a great influence on the working performance of the vane pump. For examp...

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Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies, the purpose of the present invention is to provide a rotor processing technology for the master vane pump in the field, so that it can solve the problem of rotor processing in existing similar products. Poor workmanship leads to technical problems of poor rotor precision

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