Improved minitype oil pump

Abstract

The invention relates to an improved miniature oil pump, which includes a pump casing, a pump cover and a centrifugal impeller located in the pump casing and the pump cover, wherein the pump casing includes a disk-shaped flow guide cavity, and the side wall of the flow guide cavity There is a discharge nozzle whose axis is on the tangent line of the guide cavity, and a rotating hole for connecting the driving mechanism of the centrifugal impeller is arranged in the middle of the pump cover; the centrifugal impeller includes a driving disc and a centrifugal disc, and a driving ring is arranged on the periphery of the driving disc , a cylindrical connecting ring is set in the middle of the side of the driving disc facing away from the driving ring, the liquid inlet is located in the middle of the connecting ring, the connecting ring and the rotating hole are connected by bearing rotation, and the connecting ring extends out of the outer wall of the rotating hole The drive gear is also coaxially fixedly connected to the top, and a contact ring is arranged on the periphery of the centrifugal disc, and the contact ring is in contact with the drive ring. The side of the centrifugal disc surface facing away from the contact ring is provided with a number of fan-shaped hollow protrusions in an annular array. The column is densely covered with oil discharge holes on the side wall of the raised column.

Description

technical field [0001] The invention relates to an oil pump for circularly driving engine oil, in particular to an improved miniature engine oil pump. Background technique [0002] The oil pump used by general machine tools is a peristaltic pump, while the traditional machine tool uses a gear oil pump. The two structures, the gear oil pump has a simple structure and low working noise, but the driving force is relatively poor, while the peristaltic pump generally requires an additional motor to drive, and the noise is low. Large, the driving force is not greatly improved compared with the gear oil pump. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the technical problems in the prior art and provide an improved miniature oil pump. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] An improved miniature oil pump, including a pump casing, a pump cover, ...

AI Technical Summary

Problems solved by technology

[0002] The oil pump used by general machine tools is a peristaltic pump, while the traditional machine tool uses a gear oil pump. The two structures, the gear oil pump has a simple structure and low working noise, but the driving force is relatively poor, while the peristaltic pump generally requires an additional motor to drive, and the noise is low. Large, the driving force is not greatly improved compared with the gear oil pump

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