CN218669907U

CN218669907U - Magnetic fluid lubrication magnetic thrust bearing for water pump

Info

Publication number: CN218669907U
Application number: CN202223069073.5U
Authority: CN
Inventors: 卫胡茂; 张磊; 郭承俊; 李婧; 梁嘉芯; 姜宇航; 朱志江; 刘麟; 林孜奕; 许春霞; 胡银花; 胡瑞
Original assignee: Nanchang Institute of Technology
Current assignee: Nanchang Institute of Technology
Priority date: 2022-11-19
Filing date: 2022-11-19
Publication date: 2023-03-21
Anticipated expiration: 2032-11-19

Abstract

The utility model relates to a water pump field, concretely relates to lubricated magnetism thrust bearing of magnetic current body for water pump, including the outer lane, be provided with the holder in the outer lane, be provided with the ball in the holder, protect the holder opposite side and be provided with the permanent magnet, the permanent magnet opposite side is provided with the inner circle, the inner circle opposite side is provided with the cavity, be provided with the connecting pipe in the permanent magnet, connecting pipe one end runs through the cavity, and the connecting pipe other end runs through the permanent magnet, and the connecting pipe runs through the one end of permanent magnet and stretches into in the holder. The utility model discloses a set up the connecting pipe and make the magnetic current body can flow to inside cavity, the pivot of middle work is rotatory and the magnetic current contact rotation in the cavity for the magnetic current body is gathered together to the centre by centrifugal force, avoids leaking, forms the magnetic current body lubrication ring in the pivot outer lane simultaneously, improves lubricated effect, increase of service life, through be provided with the injection pipe on the outer lane, can supply convenient to use to the magnetic current body to in the cavity.

Description

Magnetic fluid lubrication magnetic thrust bearing for water pump

Technical Field

The utility model relates to a water pump field, concretely relates to lubricated magnetism thrust bearing of magnetic current body for water pump.

Background

The magnetic fluid lubrication bearing is a bearing taking magnetic liquid as a lubrication medium, and because the size of magnetic solid particles in the magnetic fluid is nano-scale and far lower than the surface roughness, the friction loss caused by the magnetic fluid lubrication bearing is extremely small. Compared with the traditional lubricant, the magnetic fluid lubrication has better lubrication effect, and can improve the mechanical efficiency of parts such as bearings, gears and the like. In addition, the magnetic fluid lubrication also has the advantages of high reliability, less pollution, low friction loss and the like. In the use process of the existing bearing design, the fault phenomena of the rolling bearing are generally expressed as two types, namely, the fatigue failure of the bearing due to poor lubrication and the noise in the running process of the bearing.

Accordingly, one skilled in the art has provided a magnetic fluid lubricated magnetic thrust bearing for a water pump to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a lubricated magnetism thrust bearing of magnetic current body for water pump, including the outer lane, be provided with the holder in the outer lane, be provided with the ball in the holder, holder one side is provided with the outer lane, and the holder opposite side is provided with the permanent magnet, permanent magnet one side fixed connection holder, permanent magnet opposite side are provided with the inner circle, inner circle one side is provided with the permanent magnet, and the inner circle opposite side is provided with the cavity, be provided with the connecting pipe in the permanent magnet, connecting pipe one end runs through the cavity, and the connecting pipe other end runs through the permanent magnet, and the connecting pipe runs through the one end of permanent magnet and stretches into in the holder.

Preferably, the following components: a rotating shaft is arranged in the inner ring, and a cavity is formed between the periphery of the rotating shaft and the inner ring.

Preferably: and one side of the periphery of the outer ring is provided with an injection pipe, one end of the injection pipe penetrates through the retainer, and the other end of the injection pipe penetrates through the outer ring.

Preferably: the upper side and the lower side of the outer ring are both provided with sealing covers which are arranged on the upper side and the lower side of the outer ring, and the sealing covers are made of non-magnetic materials and help to shield the permanent magnet.

Preferably: the ball is arranged on the retainer, and a communicating gap is formed in the retainer and can be used for allowing the magnetic fluid to enter.

Preferably: the injection pipe can inject magnetic fluid into the retainer and the cavities at the periphery of the inner ring and the rotating shaft.

The utility model discloses a technological effect and advantage:

the utility model discloses a set up the sealed lid of non-magnetic material from top to bottom in the outer lane, the help improves the shielding nature to the permanent magnet, the permanent magnet magnetism has been strengthened, make the magnetic current body can flow to inside cavity through setting up the connecting pipe, the pivot of middle work is rotatory and the interior magnetic current body contact of cavity is rotatory, make the magnetic current body gather together to the centre by centrifugal force, avoid leaking, form the magnetic current body lubrication ring in the pivot outer lane simultaneously, improve lubricated effect, increase of service life, through be provided with the injection tube on the outer lane, can supply to the magnetic current body to in the cavity, high durability and convenient use.

Drawings

FIG. 1 is a schematic structural diagram of an inward view of a sealing cover of a magnetic thrust bearing lubricated by magnetic fluid for a water pump according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an inward view structure of a retainer in a magnetic thrust bearing lubricated by magnetic fluid for a water pump according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a seal cover in a magnetic thrust bearing lubricated by magnetic fluid for a water pump according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a side view of a magnetic fluid lubrication magnetic thrust bearing for a water pump according to an embodiment of the present application.

In the figure:

1. an outer ring; 101. an inner ring; 102. a ball bearing; 103. a holder; 104. a permanent magnet; 105. a cavity; 106. an injection pipe; 107. a rotating shaft; 108. a sealing cover; 109. and (4) connecting the pipes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Examples

Referring to fig. 1 to 4, in the present embodiment, a magnetic fluid lubricated magnetic thrust bearing for a water pump is provided, including an outer ring 1, a retainer 103 is disposed in the outer ring 1, balls 102 are disposed in the retainer 103, the outer ring 1 is disposed on one side of the retainer 103, a permanent magnet 104 is disposed on the other side of the retainer 103, one side of the permanent magnet 104 is fixedly connected to the retainer 103, an inner ring 101 is disposed on the other side of the permanent magnet 104, a permanent magnet 104 is disposed on one side of the inner ring 101, a cavity 105 is disposed on the other side of the inner ring 101, a connecting pipe 109 is disposed in the permanent magnet 104, one end of the connecting pipe 109 penetrates through the cavity 105, the other end of the connecting pipe 109 penetrates through the permanent magnet 104, and one end of the connecting pipe 109 penetrating through the permanent magnet 104 extends into the retainer 103.

A rotating shaft 107 is arranged in the inner ring 101, and a cavity 105 is formed between the periphery of the rotating shaft 107 and the inner ring 101.

An injection pipe 106 is arranged on one side of the periphery of the outer ring 1, one end of the injection pipe 106 penetrates through the retainer 103, and the other end of the injection pipe 106 penetrates through the outer ring 1. The upper side and the lower side of the outer ring 1 are both provided with sealing covers 108, the sealing covers 108 are arranged on the upper side and the lower side of the outer ring 1, and the sealing covers 108 are made of non-magnetic materials and help to shield the permanent magnet 104.

The balls 102 are arranged on a retainer 103, and the retainer 103 has a communicating gap for magnetic fluid to enter.

The injection pipe 106 can inject magnetic fluid into the retainer 103 and the cavity 105 at the periphery of the inner ring 101 and the rotating shaft 107.

The utility model discloses a theory of operation is: the utility model relates to a lubricated magnetism thrust bearing of magnetic current body for water pump, magnetic current body set up under the effect of cavity 105 and the inherent permanent magnet 104 of holder 103 during the use, and the magnetic current body forms the column shape lubricant film of ring of evenly distributed between cavity 105 and holder 103, has improved lubricating property.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. A magnetic fluid lubrication magnetic thrust bearing for a water pump comprises an outer ring (1) and is characterized in that a retainer (103) is arranged in the outer ring (1), balls (102) are arranged in the retainer (103), the outer ring (1) is arranged on one side of the retainer (103), a permanent magnet (104) is arranged on the other side of the retainer (103),

one side of the permanent magnet (104) is fixedly connected with the retainer (103), and the other side of the permanent magnet (104) is provided with an inner ring (101);

a permanent magnet (104) is arranged on one side of the inner ring (101), a cavity (105) is arranged on the other side of the inner ring (101), and a connecting pipe (109) is arranged in the permanent magnet (104);

one end of the connecting pipe (109) penetrates through the cavity (105), the other end of the connecting pipe (109) penetrates through the permanent magnet (104), and one end, penetrating through the permanent magnet (104), of the connecting pipe (109) extends into the retainer (103).

2. The magnetic fluid lubrication magnetic thrust bearing for the water pump according to claim 1, wherein a rotating shaft (107) is arranged in the inner ring (101), and a cavity (105) is formed between the outer periphery of the rotating shaft (107) and the inner ring (101).

3. The magnetic fluid lubrication magnetic thrust bearing for the water pump is characterized in that an injection pipe (106) is arranged on one side of the outer periphery of the outer ring (1), one end of the injection pipe (106) penetrates through the retainer (103), and the other end of the injection pipe (106) penetrates through the outer ring (1).

4. The magnetic fluid lubrication magnetic thrust bearing for the water pump is characterized in that sealing covers (108) are arranged on the upper side and the lower side of the outer ring (1), the sealing covers (108) are arranged on the upper side and the lower side of the outer ring (1), and the sealing covers (108) are made of nonmagnetic materials and help to shield the permanent magnet (104).

5. The magnetic fluid lubrication magnetic thrust bearing for the water pump as claimed in claim 1, wherein the balls (102) are arranged on a retainer (103), and a communication gap is formed in the retainer (103) for the magnetic fluid to enter.

6. The magnetic fluid lubrication thrust bearing for the water pump according to claim 3, wherein the injection pipe (106) can inject the magnetic fluid into the retainer (103) and the cavity (105) on the periphery of the inner ring (101) and the rotating shaft (107).