Spherical pump with static-pressure supports

Abstract

The invention discloses a spherical pump with static-pressure supports. The spherical pump comprises a cylinder cover (1), a cylinder block (5), a piston (2), a rotating disc (4), a main shaft (6) anda main shaft bracket (7); the cylinder cover (1) is connected with the cylinder block (5) to form a spherical inner cavity; a chute (601) is formed in the upper end surface of the main shaft (6); a slide shoe (403) at the shaft end part of the rotating disc is inserted in a chute (601) at the upper end of the main shaft (6); the piston (2) is movably connected with the upper end of the main shaft(6) after hinging with the rotating disc (4) to form a rotor; the static-pressure supports are arranged between two parallel side surfaces of the slide shoe (403) and the chute (601); and the static-pressure supports comprise first liquid flowing channels (404) and second liquid flowing channels (405) arranged on the rotating disc (4), and liquid pressure bearing grooves arranged on two parallelside surfaces of the slide shoe (403). The spherical pump has the advantages of eliminating the unbalance force in the operation process of the spherical pump and reducing the power consumption of thespherical pump.

Description

technical field [0001] This patent relates to a variable volume mechanism, especially a spherical pump with hydrostatic support. 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, squeezing the ...

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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