High pressure multi-blade pump

Abstract

The invention discloses a high pressure multi-blade pump. The high pressure multi-blade pump includes a shell, rotors and blades, wherein the shell is located outside the rotors in a covering mode, the end surface of the shell inwards extends to be provided with a circle of circular ring K1, at least three first locating grooves are evenly formed in the inner wall of the shell in the circumferential direction, second locating grooves are evenly formed in the ring K1 in the circumferential direction, wherein the number of the second locating grooves is the same as the number of the first locating grooves, and the blades are mounted on the first locating grooves and the second locating grooves simultaneously; the ring K1 is divided into a plurality of shifting pieces by the second locking grooves, a ring groove is formed in the side walls of the rotors, the circular ring K1 is located in the ring groove, sliding grooves which correspond to the first locking grooves in a one-to-one mode are formed in the right side face of the ring groove, and the blades are slidably arranged on the sliding grooves; and a containing cavity is formed among every two adjacent blades, the ring groove surface, the shifting pieces and the inner wall of the shell, when the rotors rotate, the rotors drive the blades to rotate together, the blades push the shell to rotate around the axis of the shell, theblades slide on the sliding grooves in a reciprocating mode while rotating, and thus the volume of the containing cavity is periodically changed.

Description

technical field [0001] The invention relates to a multi-vane pump, in particular to a high-pressure multi-vane pump. Background technique [0002] The existing vane pump structure is that the rotor is placed eccentrically in the oil cylinder, and the blades are placed in the rotor radially or at a certain angle with the rotor radius. When the rotor rotates at a high speed during operation, the blades are thrown out under the action of centrifugal force and formed with the oil cylinder. Sealed cavity, the volume change generates pressure when rotating. This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output pressure is low, and the relative linear velocity between the vane and the cylinder body is very high during rotation, resulting in great friction. As a result, the overall wear of the vane pump is fast, the life is short, and the efficiency is low. In this way, the speed of the pump cannot...

AI Technical Summary

Problems solved by technology

This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output pressure is low, and the relative linear velocity between the vane and the cylinder body is very high during rotation, resulting in great friction. As a result, the overall wear of the vane pump is fast, the life is short, and the efficiency is low

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