CN213981622U

CN213981622U - Corrosion-resistant magnetic pump shaft

Info

Publication number: CN213981622U
Application number: CN202022380879.0U
Authority: CN
Inventors: 蔡国华; 李洪
Original assignee: Taicang Magnetic Pump Co ltd
Current assignee: Taicang Magnetic Pump Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-08-17
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a corrosion-resistant magnetic force pump shaft, include: the pump shaft comprises a pump shaft body, wherein a plastic layer is arranged on the outer surface of the pump shaft body, and a knurling layer is arranged on the surface of the pump shaft body. The utility model discloses in a corrosion-resistant magnetic force pump shaft, it has set up the plastic layer through the surface at the pump shaft, can avoid metal pump shaft and liquid direct contact, effectively prevent that the pump shaft from being corroded, effectively prolong its life. The surface of the pump shaft is provided with the knurled layer, so that the surface of the pump shaft generates roughness and adhesive force, the plastic and the metal layer are firmly combined without stripping, the connection stability is further improved, and the working stability is ensured.

Description

Corrosion-resistant magnetic pump shaft

Technical Field

The utility model belongs to the technical field of the driving pump, in particular to corrosion-resistant magnetic force pump shaft.

Background

The magnetic pump realizes non-contact torque transmission through magnetic transmission, thereby replacing dynamic seal with static seal to make the pump completely leak-free. The pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, so that the problems of leakage, overflow, dripping and leakage are thoroughly solved.

The existing pump shaft is mostly a metal shaft body, is extremely easy to corrode in the using process, and can cause serious abrasion problem in long-term work, so that the normal service life of the pump shaft is seriously influenced. Therefore, the existing magnetic pump shaft still needs to be improved.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a corrosion-resistant magnetic force pump shaft, its simple structure, reasonable in design, it has set up the plastic layer through the surface at the pump shaft, can avoid metal pump shaft and liquid direct contact, prevents effectively that the pump shaft from being corroded, effectively prolongs its life. The surface of the pump shaft is provided with the knurled layer, so that the surface of the pump shaft generates roughness and adhesive force, the plastic and the metal layer are firmly combined, and stripping is not generated.

The technical scheme is as follows: in order to achieve the above object, the utility model provides a corrosion-resistant magnetic force pump shaft, include: the pump shaft comprises a pump shaft body, wherein a plastic layer is arranged on the outer surface of the pump shaft body, and a knurling layer is arranged on the surface of the pump shaft body. The utility model discloses in a corrosion-resistant magnetic force pump shaft, it has set up the plastic layer through the surface at the pump shaft, can avoid metal pump shaft and liquid direct contact, effectively prevent that the pump shaft from being corroded, effectively prolong its life. The surface of the pump shaft is provided with the knurled layer, so that the surface of the pump shaft generates roughness and adhesive force, the plastic and the metal layer are firmly combined without stripping, the connection stability is further improved, and the working stability is ensured.

The pump shaft body comprises a central shaft body, a group of first side shaft bodies and a group of second side shaft bodies, wherein the first side shaft bodies are arranged on two sides of the central shaft body, and the second side shaft bodies are arranged at the ends, far away from the central shaft body, of the first side shaft bodies.

Further, the pump shaft body is in a step shape, wherein the diameter of the first side shaft body is smaller than that of the central shaft body, and the diameter of the second side shaft body is smaller than that of the first side shaft body.

Furthermore, one end of the second side shaft body, which is located at the first side shaft body, is provided with a convex part.

Preferably, a group of dovetail grooves are formed in the pump shaft body and are longitudinally arranged.

Preferably, a group of straight grooves are formed in the periphery of the central shaft body and the periphery of the first side shaft body.

Still further preferably, the knurled layer is a grid-type knurled layer.

Furthermore, a group of salient points are arranged in the grid of the knurling layer.

Furthermore, a protective layer is arranged on the surface of the plastic layer.

Further preferably, the protective layer includes heat-resistant layer and wearing layer, the surface of plastic layer is located to the heat-resistant layer, the surface of heat-resistant layer is located to the wearing layer.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. the utility model discloses in a corrosion-resistant magnetic force pump shaft, it has set up the plastic layer through the surface at the pump shaft, can avoid metal pump shaft and liquid direct contact, effectively prevent that the pump shaft from being corroded, effectively prolong its life.

2. The utility model discloses in the surface of pump shaft is equipped with the knurling layer for the pump shaft surface produces the bipolar degree of hair, and the pump shaft of letting the carbon steel can combine firmly with the plastic layer, can not peel off, thereby further improves the stability of its connection, guarantees the stability of its work.

3. The utility model discloses in the duplicate protection can be realized to the pump shaft to the setting of protective layer, further prolongs the life-span that this pump shaft later stage was used.

Drawings

Fig. 1 is a schematic structural view of a corrosion-resistant magnetic pump shaft according to the present invention;

FIG. 2 is a structural diagram of the pump shaft body of the present invention;

FIG. 3 is a diagram of a protective layer according to the present invention;

FIG. 4 is a cross-sectional view of the central shaft of the present invention;

fig. 5 is a cross-sectional view of the first side shaft body of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A corrosion resistant magnetic pump shaft as shown, comprising: the pump shaft comprises a pump shaft body 1, wherein a plastic layer 2 is arranged on the outer surface of the pump shaft body 1, and a knurling layer is arranged on the surface of the pump shaft body 1.

In this embodiment, the pump shaft body 1 includes a central shaft body 11, a set of first side shaft bodies 12 and a set of second side shaft bodies 13, the first side shaft bodies 12 are disposed on two sides of the central shaft body 11, and the second side shaft bodies 13 are disposed on one ends of the first side shaft bodies 12 far away from the central shaft body 11.

In this embodiment, the pump shaft body 1 is stepped, wherein the diameter of the first side shaft body 12 is smaller than that of the central shaft body 11, and the diameter of the second side shaft body 13 is smaller than that of the first side shaft body 12.

In this embodiment, the second side axle body 13 is provided with a convex portion 131 at one end of the first side axle body 12.

In this embodiment, the pump shaft body 1 is provided with a group of dovetail grooves 4, and the dovetail grooves 4 are longitudinally arranged.

In this embodiment, a set of straight grooves 5 is formed around the central shaft body 11 and the first side shaft body 12.

Example 2

In this embodiment, the knurling layer is a grid-type knurling layer.

In this embodiment, a group of bumps is disposed in the grid of the knurled layer.

In this embodiment, the surface of the plastic layer 2 is provided with a protective layer 6.

In this embodiment the protective layer 6 includes heat-resistant layer and wearing layer, the surface of plastic layer 2 is located to the heat-resistant layer, the surface of heat-resistant layer is located to the wearing layer.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A corrosion-resistant magnetic pump shaft which characterized in that: the method comprises the following steps: the pump shaft comprises a pump shaft body (1), wherein a plastic layer (2) is arranged on the outer surface of the pump shaft body (1), and a knurling layer is arranged on the surface of the pump shaft body (1).

2. The corrosion-resistant magnetic pump shaft of claim 1, wherein: the pump shaft body (1) comprises a central shaft body (11), a set of first side shaft bodies (12) and a set of second side shaft bodies (13), wherein the first side shaft bodies (12) are arranged on two sides of the central shaft body (11), and the second side shaft bodies (13) are arranged at one ends, far away from the central shaft body (11), of the first side shaft bodies (12).

3. The corrosion-resistant magnetic pump shaft of claim 2, wherein: the pump shaft body (1) is in a step shape, wherein the diameter of the first side shaft body (12) is smaller than that of the central shaft body (11), and the diameter of the second side shaft body (13) is smaller than that of the first side shaft body (12).

4. The corrosion-resistant magnetic pump shaft of claim 2, wherein: and a convex part (131) is arranged at one end of the second side shaft body (13) positioned at the first side shaft body (12).

5. The corrosion-resistant magnetic pump shaft of claim 2, wherein: a group of dovetail grooves (4) are formed in the pump shaft body (1), and the dovetail grooves (4) are longitudinally arranged.

6. The corrosion-resistant magnetic pump shaft of claim 2, wherein: a group of straight grooves (5) are formed in the periphery of the central shaft body (11) and the periphery of the first side shaft body (12).

7. The corrosion-resistant magnetic pump shaft of claim 2, wherein: the knurling layer is a grid-type knurling layer.

8. The corrosion-resistant magnetic pump shaft of claim 7, wherein: a group of salient points are arranged in the grids of the knurling layer (3).

9. The corrosion-resistant magnetic pump shaft of claim 1, wherein: and a protective layer (6) is arranged on the surface of the plastic layer (2).

10. The corrosion-resistant magnetic pump shaft of claim 9, wherein: the protective layer (6) comprises a heat-resistant layer and a wear-resistant layer, the heat-resistant layer is arranged on the surface of the plastic layer (2), and the wear-resistant layer is arranged on the outer surface of the heat-resistant layer.