High-performance multiple-blade pump

Abstract

The invention provides a high-performance multiple-blade pump. The high-performance multiple-blade pump comprises a casing, a rotor, blades, oil distribution blocks and a guiding block. The casing isarranged outside the rotor in a covering mode. The casing is provided with at least three shifting blocks uniformly distributed in the circumferential direction. A sliding groove is formed between every two adjacent shifting blocks. An annular groove is formed in the center of the side wall of the rotor. Positioning grooves of which the number is equal to that of the shifting blocks are uniformlyformed in the annular groove in the circumferential direction. Each blade is mounted on the corresponding positioning groove. An accommodating cavity is formed among every two adjacent blades, the annular groove surface and the inner wall of the casing. The blades are inserted into the sliding grooves, so that each accommodating cavity is internally provided with the corresponding shifting block.Each accommodating cavity is divided into a first cavity and a second cavity through the corresponding shifting block. The two ends of the rotor are connected with the oil distribution blocks correspondingly. A convex ring J1 of the outer wall of the casing is placed in a guiding groove of the guiding block. The axis of the rotor and the axis of the casing do not coincide. When the rotor rotates,each shifting block slides back and forth between the two corresponding blades, thus the volumes of the corresponding first cavity and the corresponding second cavity periodically change, and the changes of the corresponding first cavity and the corresponding second cavity are opposite.

Description

technical field [0001] The invention relates to a multi-vane pump, in particular to a high-performance 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 can...

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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