CN213655231U

CN213655231U - Sealing structure for hole in steel-plastic composite magnetic pump shaft

Info

Publication number: CN213655231U
Application number: CN202022377983.4U
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: 2021-07-09
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a mesoporous seal structure of compound magnetic force pump shaft is moulded to steel, include: the pump shaft body, the inside and outside surface of pump shaft body all is equipped with the protective layer, and is located one side of pump shaft body and is equipped with a set of first locating hole, the remaining first locating hole relative position of protective layer is equipped with the second locating hole, first locating hole and second locating hole set up with the hole, just pump shaft body and protective layer are located first locating hole and second locating hole position and pass through bolted connection. The utility model discloses in a steel is moulded compound magnetic force pump shaft mesopore seal structure, its simple structure, reasonable in design, easy to produce is through setting up first locating hole on the pump shaft body to block first locating hole through the bolt, great improvement its sealing performance, simultaneously can effectually prevent that the pump shaft from taking place crooked, deformation at the in-process of processing, thereby guaranteed the processingquality of pump shaft.

Description

Sealing structure for hole in steel-plastic composite magnetic pump shaft

Technical Field

The utility model belongs to the technical field of the magnetic drive pump processing, in particular to mesopore seal structure of compound magnetic drive pump shaft is moulded to steel.

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 pump shaft of magnetic drive pump often can lead to the pump shaft to appear crooked at the in-process of processing, also can lead to its in-process of using at the later stage to appear the leak source because sealed incomplete, simultaneously, current pump shaft, most all be metal axis body pump shaft long-term use back liquid can corrode the shaft hole, therefore the pump shaft structure of current magnetic drive pump still remains in the improvement.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a compound magnetic force pump shaft mesopore seal structure is moulded to steel, its simple structure, reasonable in design through set up first locating hole on the pump shaft body to seal first locating hole through the bolt, great improvement its sealing performance, simultaneously can effectually prevent that the pump shaft from taking place crooked, deformation at the in-process of processing, thereby guaranteed the processingquality of pump shaft.

The technical scheme is as follows: in order to realize the above-mentioned purpose, the utility model provides a mesoporous seal structure of compound magnetic pump shaft is moulded to steel, include: the pump shaft body, the inside and outside surface of pump shaft body all is equipped with the protective layer, and is located one side of pump shaft body and is equipped with a set of first locating hole, the protective layer is equipped with the second locating hole with first locating hole relative position, first locating hole and second locating hole set up with the hole, just pump shaft body and protective layer are located first locating hole and second locating hole position and pass through bolted connection.

The utility model discloses in a steel is moulded compound magnetic force pump shaft mesopore seal structure, its simple structure, reasonable in design, easy to produce is through setting up first locating hole on the pump shaft body to block first locating hole through the bolt, great improvement its sealing performance, simultaneously can effectually prevent that the pump shaft from taking place crooked, deformation at the in-process of processing, thereby guaranteed the processingquality of pump shaft.

And steps are arranged on the protective layer and positioned around the second positioning hole, sealing gaskets are arranged on the steps, and the steps are matched with the bolts. The sealing gasket is arranged, so that the sealing performance of the first positioning hole and the second positioning hole between the pump shaft body and the protective layer is further improved.

In addition, the inside of pump shaft body is equipped with the shaft hole.

Further, the pump shaft body includes center section axis body, first side axis body, second side axis body and third side axis body, the both sides of center section axis body are located to first side axis body, the one end that first axis body was kept away from to first side axis body is located to second side axis body, the one end that first side axis body was kept away from to second side axis body is located to third side axis body.

Furthermore, the pump shaft body is in a step shape from the first shaft body to two sides, the diameter of the first side shaft body is smaller than that of the central section shaft body, the diameter of the second side shaft body is smaller than that of the second side shaft body, and the diameter of the third side shaft body is smaller than that of the second side shaft body.

Further, the protective layer is matched with the pump shaft body.

Preferably, the outer edges of the protective layer, which are positioned at two sides of the central section shaft body, are provided with arc-shaped grooves.

Further preferably, the protective layer is a polyetheretherketone protective layer.

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

1. the utility model discloses in a steel is moulded compound magnetic force pump shaft mesopore seal structure, its simple structure, reasonable in design, easy to produce is through setting up first locating hole on the pump shaft body to block first locating hole through the bolt, great improvement its sealing performance, simultaneously can effectually prevent that the pump shaft from taking place crooked, deformation at the in-process of processing, thereby guaranteed the processingquality of pump shaft.

2. The utility model discloses in the setting of protective layer, can realize complete sealed to the pump shaft body, play fine guard action to the pump shaft body, avoid this integument liquid corrosion of pump shaft, its life of effectual extension.

3. The utility model discloses in be equipped with the step around lieing in the second locating hole on the protective layer, be equipped with sealed the pad on the step, just the step cooperatees with the bolt. The arrangement of the step and the sealing gasket further improves the sealing performance of the first positioning hole and the second positioning hole between the pump shaft body and the protective layer.

Drawings

Fig. 1 is a schematic structural diagram 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 kind of steel-plastic composite magnetic pump shaft mesopore hermetically-sealed construction as shown in the figure, including: the pump shaft body 1, the inside and outside surface of pump shaft body 1 all is equipped with protective layer 2, and the one side that is located pump shaft body 1 is equipped with a set of first locating hole 3, the remaining 3 relative positions in first locating hole of protective layer 2 are equipped with second locating hole 4, first locating hole 3 and the same hole setting of second locating hole 4, just pump shaft body 1 and protective layer 2 are located first locating hole 3 and the 4 positions in second locating hole and pass through bolt 5 and connect.

In this embodiment, a step 6 is disposed on the protective layer 2 around the second positioning hole 4, a sealing gasket 7 is disposed on the step 6, and the step 6 is matched with the bolt 5.

In this embodiment, the pump shaft body 1 is provided with a shaft hole 101 inside.

In this embodiment, the pump shaft body 1 includes a center section shaft body 11, a first side shaft body 12, a second side shaft body 13 and a third side shaft body 14, the first side shaft body 12 is disposed on both sides of the center section shaft body 11, the second side shaft body 13 is disposed on one end of the first side shaft body 12 far away from the first side shaft body 12, and the third side shaft body 14 is disposed on one end of the second side shaft body 13 far away from the first side shaft body 12.

In this embodiment, the pump shaft body 1 is stepped from the first side shaft body 12 to the two sides, the diameter of the first side shaft body 12 is smaller than that of the central section shaft body 11, the diameter of the second side shaft body 13 is smaller than that of the second side shaft body 12, and the diameter of the third side shaft body 14 is smaller than that of the second side shaft body 12.

In the present embodiment, the protective layer 2 is adapted to the pump shaft body 1.

In this embodiment, the outer edges of the protective layer 2 on both sides of the central section shaft body 11 are provided with arc-shaped grooves 8.

In this embodiment, the protection layer 2 is a protection layer of polyetheretherketone.

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. The utility model provides a mesoporous seal structure of compound magnetic pump shaft is moulded to steel which characterized in that: the method comprises the following steps: pump shaft body (1), the inside and outside surface of pump shaft body (1) all is equipped with protective layer (2), and the one side that is located pump shaft body (1) is equipped with a set of first locating hole (3), protective layer (2) and first locating hole (3) relative position are equipped with second locating hole (4), first locating hole (3) and second locating hole (4) are with the hole setting, just pump shaft body (1) and protective layer (2) are located first locating hole (3) and second locating hole (4) position and pass through bolt (5) and connect.

2. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: steps (6) are arranged on the protective layer (2) and located on the periphery of the second positioning hole (4), a sealing gasket (7) is arranged on the steps (6), and the steps (6) are matched with the bolts (5).

3. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: the pump shaft comprises a pump shaft body (1) and is characterized in that a shaft hole (101) is formed in the pump shaft body.

4. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: the pump shaft body (1) comprises a center section shaft body (11), a first side shaft body (12), a second side shaft body (13) and a third side shaft body (14), wherein the first side shaft body (12) is arranged on two sides of the center section shaft body (11), the second side shaft body (13) is arranged on one end, far away from the first side shaft body (12), of the first side shaft body (12), and the third side shaft body (14) is arranged on one end, far away from the first side shaft body (12), of the second side shaft body (13).

5. The sealing structure of the middle hole of the steel-plastic composite magnetic pump shaft according to claim 4, characterized in that: the pump shaft body (1) is in a step shape from a first side shaft body (12) to two sides, the diameter of the first side shaft body (12) is smaller than that of a central section shaft body (11), the diameter of a second side shaft body (13) is smaller than that of the first side shaft body (12), and the diameter of a third side shaft body (14) is smaller than that of the second side shaft body (13).

6. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: the protective layer (2) is matched with the pump shaft body (1).

7. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: the outer edges of the protective layer (2) on two sides of the central section shaft body (11) are provided with arc-shaped grooves (8).

8. The sealing structure of the central hole of the steel-plastic composite magnetic pump shaft according to claim 1, characterized in that: the protective layer (2) is a polyether-ether-ketone protective layer.