CN210087673U

CN210087673U - Impeller for fluorine-lined magnetic pump

Info

Publication number: CN210087673U
Application number: CN201920869214.0U
Authority: CN
Inventors: 董落成; 殷新建; 邵振亮; 陈子扬
Original assignee: Nanjing Ejia Fluorine Fluid Control Co Ltd
Current assignee: Nanjing Ejia Fluorine Fluid Control Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-02-18
Anticipated expiration: 2029-06-11

Abstract

The utility model belongs to the technical field of the magnetic drive pump, concretely relates to impeller for fluorine-lined magnetic drive pump. The magnetic bearing comprises a metal substrate, wherein the metal substrate comprises a metal shaft sleeve, one end of the metal shaft sleeve is welded with a metal blade, inner magnetic blocks are uniformly adsorbed on the outer peripheral surface of the other end of the metal shaft sleeve, and a metal pressure ring for pressing the inner magnetic blocks is tightly sleeved on the metal shaft sleeve; the surface of the metal substrate is coated with a fluoroplastic layer. The utility model discloses a whole technology preparation, reducible components of a whole that can function independently cost of manufacture, and can avoid having the problem that the clearance or wearing and tearing arouse easily to reveal because of the components of a whole that can function independently preparation.

Description

Impeller for fluorine-lined magnetic pump

Technical Field

The utility model belongs to the technical field of the magnetic drive pump, concretely relates to impeller for fluorine-lined magnetic drive pump.

Background

In the field of domestic chemical equipment, a fluorine-lined impeller in the existing magnetic pump is one of core components of the pump, and the impeller comprises blades and magnets, so that the difficulty of the whole fluorine-lined manufacturing process is high. Domestic manufacturers adopt a split structure, firstly adopt an impeller and an inner magnet to separately wrap plastics to manufacture two plastic parts, and then assemble the two plastic parts together for use.

The split structure increases the manufacturing cost on the one hand, and on the other hand is influenced by temperature and medium, and the plastic matching surfaces of the two parts have clearance and abrasion phenomena, thereby leading to the quality problems of unbalance of the impeller or leakage caused by thinning of the plastic along with the change of time.

Therefore, there is a need to improve the prior art to overcome the shortcomings of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the present invention is to provide an impeller for a fluorine-lined magnetic pump, which is manufactured by a whole process, has a reduced split manufacturing cost, and avoids leakage due to gaps or abrasion.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: the impeller for the fluorine-lined magnetic pump comprises a metal substrate, wherein the metal substrate comprises a metal shaft sleeve, one end of the metal shaft sleeve is welded with a metal blade, inner magnetic blocks are uniformly adsorbed on the outer peripheral surface of the other end of the metal shaft sleeve, and a metal pressure ring for pressing the inner magnetic blocks is tightly sleeved on the metal shaft sleeve; the surface of the metal substrate is coated with a fluoroplastic layer.

As a preferable technical scheme, the metal shaft sleeve is provided with a limiting protrusion at the outer end of the inner magnetic block.

As a preferable technical scheme, the inner magnetic block is made of rare earth permanent magnetic materials.

In a preferred embodiment, the fluoroplastic layer is a PFA fluoroplastic.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has at least:

(1) the fluorine-lined impeller is manufactured by an integral process, so that the raw material and labor cost of split manufacturing are reduced;

(2) the impeller with the fluorine lining integrally has better working condition adapting capability in the high-speed rotation process, and avoids the leakage problem caused by clearance or abrasion in split manufacturing;

(3) the PFA fluoroplastic is integrally lined, so that the high-risk medium corrosion resistance such as strong acid and strong alkali resistance is achieved for a long time, the ageing resistance is realized, and the service life is long;

(4) the metal matrix assembly structure reduces the difficulty of the whole fluorine lining manufacturing process, and the optimized die design and the mature injection molding process are matched, so that the manufacturing qualification rate of the whole fluorine lining impeller reaches more than 98 percent.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is a sectional view of a metal substrate according to an embodiment of the present invention.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1 and 2, the impeller for the fluorine-lined magnetic pump comprises a metal base body, wherein the metal base body comprises a metal shaft sleeve 4, one end of the metal shaft sleeve 4 is welded with a metal blade 1, inner magnetic blocks 3 are uniformly adsorbed on the outer peripheral surface of the other end of the metal shaft sleeve 4, a metal pressing ring 2 for pressing the inner magnetic blocks 3 is tightly sleeved on the metal shaft sleeve 4, the inner magnetic blocks 3 are pressed through the metal pressing ring 2, and the inner magnetic blocks 3 are ensured not to be displaced in the plastic pressing and injecting process; the metal shaft sleeve 4 is provided with a limiting protrusion 6 at the outer end of the inner magnetic block 3, and the limiting protrusion 6 is matched with the metal pressure ring 2 to play a role in jointly fixing and limiting the inner magnetic block 3; the surface of the metal substrate is coated with a fluoroplastic layer 5.

The inner magnetic block 3 is preferably made of rare earth permanent magnetic material; the fluoroplastic layer 5 is preferably made of PFA fluoroplastic; the material of the metal substrate can be stainless steel or other alloy materials.

Referring to fig. 1, the specific manufacturing method is as follows: the inner magnetic blocks 3 are uniformly distributed and adsorbed on the outer peripheral surface of the metal shaft sleeve 4 through a special tool clamp, and the metal press ring 2 is tightly matched with the metal shaft sleeve 4 to press the inner magnetic blocks 3; and the metal blade 1 and the end part of the metal shaft sleeve 4 are subjected to positioning spot welding, and the inside and the outside of the metal matrix are completely coated with PFA fluoroplastic through injection equipment.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. Lining fluorine impeller for magnetic drive pump, including metal matrix, its characterized in that: the metal substrate comprises a metal shaft sleeve, one end of the metal shaft sleeve is welded with a metal blade, inner magnetic blocks are uniformly adsorbed on the outer peripheral surface of the other end of the metal shaft sleeve, and a metal pressure ring for pressing the inner magnetic blocks is tightly sleeved on the metal shaft sleeve; the surface of the metal substrate is coated with a fluoroplastic layer.

2. An impeller for a fluorine-lined magnetic pump as set forth in claim 1, wherein: and the outer end of the metal shaft sleeve, which is positioned at the inner magnetic block, is provided with a limiting protrusion.

3. The impeller for the fluorine-lined magnetic pump as recited in claim 1, wherein said inner magnetic block is made of a rare earth permanent magnetic material.

4. An impeller for a fluorine-lined magnetic pump as set forth in claim 1, 2 or 3, wherein said fluoroplastic layer is a PFA fluoroplastic.