Static pressure support for rotor of spherical pump

Abstract

The utility model discloses a static pressure support for rotor of a spherical pump. The static pressure support for the rotor of the spherical pump is characterized in that a static pressure supportbody is arranged between two parallel side surfaces of piston shoes (403) and a chute (601), wherein the static pressure support body comprises a first liquid channel (404), a second liquid channel (405), and liquid bearing grooves formed in the two parallel side surfaces of the piston shoes (403); the first liquid channel (404) and the second liquid channel (405) are arranged on a turntable (4);an inlet (4041) of the first liquid channel communicates with one working chamber (101); an inlet (4051) of the second liquid channel communicates with another working chamber (1001); and an outlet (4042) of the first liquid channel and an outlet (4052) of the second liquid channel correspondingly communicate with the liquid bearing grooves in the two parallel side surfaces of the piston shoes (403). The static pressure support for the rotor of the spherical pump has the advantages that unbalance force produced in the running process of the spherical pump is removed; a gap between matching surfaces is ensured; and the power consumption of the spherical pump is reduced.

Description

technical field [0001] This patent relates to a variable volume mechanism, in particular to a hydrostatic support for a spherical pump rotor. Background technique [0002] Spherical pump is a variable displacement mechanism with a new structure newly invented in recent years. The advantages of spherical pump are that there is no inlet / exhaust valve, less moving parts, and the moving parts are in surface contact, forming a surface sealing structure, so the sealing Reliable, etc., can realize high pressure and structure miniaturization. Now the spherical pump has many applications in practice, and it is a new structure of pump machinery. However, since there is a fixed angle between the piston axis and the main shaft of the spherical pump, the pressure in the two working chambers changes back and forth. When one working chamber is at high pressure, the other working chamber is at low pressure, which will cause the piston and The turntable deflects to the low-pressure side, s...

AI Technical Summary

Problems solved by technology

However, since there is a fixed angle between the piston axis and the main shaft of the spherical pump, the pressure in the two working chambers changes back and forth. When one working chamber is at high pressure, the other working chamber is at low pressure, which will cause the piston and The turntable deflects to the low-pressure side, squeezing the spherical surface of the cylinder body, so that the gap between the turntable on this side and the spherical surface of the cylinder body becomes smaller, the oil film or water film is damaged, and the friction force increases, resulting in increased power consumption, and the rotor and sliding Abnormal wear on boots

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