Five-wire synchronous meshing spring compensation combined pump

Abstract

The invention provides a five-wire synchronous meshing spring compensation combined pump. The five-wire synchronous meshing spring compensation combined pump comprises a pump body (4), a rotor shaft (1) arranged in a central through hole (41) of the pump body (4), and an auxiliary rotor (2) arranged in an eccentric half hole (42) of the pump body (4); an eccentric end cover (5) is arranged on the outer end face of the eccentric half hole (42) and is closed and fixed by using at least three screws (8); the outer end face of the auxiliary rotor (2) is attached to the front of a compensation disk (6); a positioning pin (7) and a tower-shaped spring (9) are arranged between the back of the compensation disk (6) and the eccentric end cover (5); the rotor shaft (1) and the auxiliary rotor (2) synchronously produce five axially extending sealing bands; and under the action of a supporting bounce of the tower-shaped spring (9), one side of the front of the compensation disk (6) is kept being attached to the outer end faces of the two rotors, so the inner end faces of the two rotors are attached to the bottom surface (40) of the eccentric half hole. A, B, C and D five dynamic spaces have end face abrasion sealing compensation and radial abrasion sealing compensation, so that a high movement isolating and sealing state is kept between a high pressure cavity and a low pressure cavity for long time.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, and the international patent classification is F04D non-variable displacement pump, which relates to an energy conversion volumetric pump which converts mechanical energy into liquid pressure energy, in particular to a five-wire synchronous meshing spring compensation combination pump. Background technique [0002] The main structural forms of known positive displacement pumps are: plunger pump, screw pump, Roots pump and sliding vane pump. As a positive displacement pump, it has the advantage of high efficiency, but its efficiency is obviously reduced after long-term wear and tear. The main reason for the above defects is that the end face movable isolation between the high-pressure chamber and the low-pressure chamber cannot effectively seal. If the tolerance size of the end face is too small, it is easy to be stuck due to thermal expansion. If the tolerance size of the end face is too lar...

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Problems solved by technology

) to collect global engineering science and technology papers, and there has never been a positive displacement pump that can simultaneously have end face wear seal compensation and radial wear seal compensation

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