CN218454909U - Magnetic fluid lubricating magnetic cylindrical roller bearing - Google Patents

Abstract

The utility model relates to the technical field related to bearings, in particular to a magnetic fluid lubrication magnetic cylindrical roller bearing, which comprises a base, a supporting seat and a rotating seat, wherein the supporting seat is fixedly arranged on the base, the rotating seat which can rotate with the supporting seat is arranged on the supporting seat, the rotating seat comprises an axis body, a retaining structure is arranged on the outer side of the rotating seat, and the retaining structure is arranged in the supporting seat below and is connected with the supporting seat in a sliding way; a side groove is arranged on the supporting seat and positioned at the outer side of the lower sliding rail, a plurality of through grooves are also arranged between the side groove and the inner groove, and magnetic blocks are embedded in the through grooves; the retaining structure comprises a limiting ring, the limiting ring is arranged in the side groove, a magnetic ring is embedded on the inner wall of the limiting ring, one side of the magnetic ring is in contact with the magnetic block, and the contact surfaces of the magnetic ring and the magnetic block attract each other. The utility model discloses a set up spacing ring, magnetic ring in the outside of axis body, make its and the side channel and the magnetic path interact on the supporting seat, strengthened the stability of axis body, avoided the axis body to break away from the problem emergence of lower slide rail, improved the whole moving stability of bearing.

Description

Magnetic fluid lubricating magnetic cylindrical roller bearing

Technical Field

The utility model relates to a bearing correlation technique field, concretely relates to lubricated magnetism cylindrical roller bearing of magnetic current body.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process, and guarantee its gyration precision. The bearing is of various kinds, and one of them is a cylindrical roller bearing. It is a centripetal rolling bearing whose ball rolling bodies are cylindrical rollers. The internal structure of the cylindrical roller bearing adopts rollers which are arranged in parallel.

Through retrieval, the Chinese patent discloses a magnetic fluid thrust cylindrical roller bearing and a processing technology thereof (No. CN 110345159B), which comprises a shaft ring, a roller retainer, a seat ring and a static frame, wherein rollers are sequentially arranged in the middle of the roller retainer, the roller retainer and the rollers are arranged in an annular raceway above the seat ring together, magnetic fluid is injected into the annular raceway of the seat ring, and an annular gasket and an annular axial permanent magnet are arranged in an annular groove below the seat ring; the invention adopts the magnetic fluid as the thrust bearing lubricant, can realize the bearing operation requirements of low friction, micro-vibration and high bearing capacity, sets the seat ring as the annular roller path for the magnetic fluid and the roller lubricating system, and adopts the permanent magnet as the external magnetic field applying source arranged at the lower part of the magnetic fluid, has reasonable structural design and is particularly suitable for precise instruments with strict operation conditions.

The magnetic fluid is used as the lubricant, so that the lubricating effect is greatly improved, and the rotating precision of the bearing is ensured. However, there is no connection structure between the shaft ring and the race, so that the shaft ring is completely acted by the shaft rod from the outside, and the shaft ring and the balls are likely to shake or deviate when the acting force is large, thereby affecting the overall stability of the bearing. Accordingly, a magnetic fluid lubricated magnetic cylindrical roller bearing is provided by those skilled in the art to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a magnetic fluid lubrication magnetic cylindrical roller bearing, which comprises a base, a supporting seat and a rotating seat, wherein the supporting seat is fixedly arranged on the base, the rotating seat which can rotate with the supporting seat is arranged on the supporting seat, and an external shaft lever is arranged in the rotating seat;

the rotating seat comprises a shaft body, the inner side of the shaft body is provided with a rotating structure, the outer side of the shaft body is provided with a retaining structure, and the retaining structure is arranged in a supporting seat below the retaining structure and is connected with the supporting seat in a sliding manner;

a side groove is arranged on the supporting seat and positioned at the outer side of the lower sliding rail, a plurality of through grooves are also arranged between the side groove and the inner groove, and magnetic blocks are embedded in the through grooves;

the retaining structure comprises a limiting ring, the limiting ring is arranged in the side groove, a magnetic ring is embedded on the inner wall of the limiting ring, one side of the magnetic ring is in contact with the magnetic block, and the contact surfaces of the magnetic ring and the magnetic block attract each other.

Preferably: the rotating structure comprises an upper sliding rail arranged on the lower surface of the shaft body, and a plurality of balls rotating in the upper sliding rail are mounted in the upper sliding rail.

Preferably: the shaft body is provided with a shaft sleeve on the inner side, and the shaft sleeve is connected with an external shaft rod.

Preferably: the upper surface of the supporting seat is provided with a lower sliding rail corresponding to the ball, the ball is positioned in the lower sliding rail, and magnetic fluid is injected into the lower sliding rail.

Preferably: an inner groove is formed in the supporting seat and is located below the lower sliding rail, and a permanent magnet is installed in the inner groove.

Preferably: the through grooves are distributed at equal intervals by taking the center point of the supporting seat as a circle.

Preferably, the following components: the inner side of the magnetic block and the permanent magnet are mutually adsorbed.

The utility model discloses a technological effect and advantage:

the utility model discloses a set up spacing ring, magnetic ring in the outside of axis body, make its and the side channel and the magnetic path interact on the supporting seat, strengthened the stability of axis body, avoided the axis body to break away from the problem emergence of lower slide rail, improved the whole moving stability of bearing.

Drawings

FIG. 1 is a schematic structural diagram of a magnetic fluid lubrication magnetic cylindrical roller bearing provided by an embodiment of the present application;

FIG. 2 is an exploded view of a magnetic fluid lubricated magnetic cylindrical roller bearing provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a rotating seat in a magnetic fluid lubrication magnetic cylindrical roller bearing provided by an embodiment of the present application;

FIG. 4 is a first cross-sectional view of a support seat in a magnetic fluid lubricated magnetic cylindrical roller bearing according to an embodiment of the present application;

fig. 5 is a second cross-sectional view of a supporting seat in a magnetic fluid lubricated magnetic cylindrical roller bearing according to an embodiment of the present application.

In the figure:

1. a base; 2. a supporting base; 3. a rotating seat; 21. a lower slide rail; 22. an inner tank; 23. a permanent magnet; 24. a magnetic fluid; 25. a side groove; 26. a through groove; 27. a magnetic block; 31. a shaft body; 32. an upper slide rail; 33. a ball bearing; 34. a shaft sleeve; 35. a limiting ring; 36. a magnetic ring.

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 5, in the present embodiment, a magnetic fluid lubricated magnetic cylindrical roller bearing is provided, which includes a base 1, a supporting seat 2 and a rotating seat 3, the supporting seat 2 is fixedly disposed on the base 1, the rotating seat 3 capable of rotating with the supporting seat 2 is mounted on the supporting seat 2, an external shaft rod is mounted in the rotating seat 3, and the two are fixed, so that the shaft rod can rotate with the supporting seat 2 through the rotating seat 3;

the rotating seat 3 comprises a shaft body 31, a rotating structure is arranged on the inner side of the shaft body 31, a retaining structure is arranged on the outer side of the shaft body, the retaining structure is arranged in the supporting seat 2 below the retaining structure and is connected with the supporting seat 2 in a sliding mode, the rotating structure achieves the rotating effect of the rotating seat 3, and the retaining structure enables the shaft body 31 to be more stable during rotation, so that the phenomenon that the rotating precision is influenced due to shaking is avoided;

the rotating structure comprises an upper sliding rail 32 arranged on the lower surface of the shaft body 31, a plurality of balls 33 rotating in the upper sliding rail 32 are arranged in the upper sliding rail 32, a shaft sleeve 34 is arranged on the inner side of the shaft body 31, the shaft sleeve 34 is connected with an external shaft rod, the shaft rod is arranged and fixed in the shaft sleeve 34, and the shaft rod drives the shaft body 31 to be rotatably connected with the supporting seat 2 through the balls 33 through the shaft sleeve 34;

the upper surface of the supporting seat 2 is provided with a lower slide rail 21 corresponding to the ball 33, the ball 33 is positioned in the lower slide rail 21, meanwhile, the magnetic fluid 24 is injected in the lower slide rail 21, the lower slide rail 21 can have a good lubricating effect on the ball 33, an inner groove 22 is arranged below the lower slide rail 21 in the supporting seat 2, a permanent magnet 23 is arranged in the inner groove 22, and the permanent magnet 23 and the magnetic fluid 24 act to ensure the lubricating effect of the magnetic fluid 24;

a side groove 25 is arranged on the support seat 2 and positioned on the outer side of the lower sliding rail 21, a plurality of through grooves 26 are further arranged between the side groove 25 and the inner groove 22, the plurality of through grooves 26 are distributed at equal intervals by taking the central point of the support seat 2 as a circle, magnetic blocks 27 are embedded in the through grooves 26, and the inner sides of the magnetic blocks 27 and the permanent magnets 23 are mutually adsorbed;

the retaining structure comprises a limiting ring 35, the limiting ring 35 is installed in the side groove 25, a magnetic ring 36 is embedded on the inner wall of the limiting ring 35, one side of the magnetic ring 36 is in contact with the magnetic block 27, the contact surfaces of the magnetic ring and the magnetic block are mutually attracted, the limiting ring 35 is arranged in the side groove 25, the limiting function is achieved on the shaft body 31, the stability of the shaft body 31 is protected, meanwhile, the limiting ring 35 is magnetically adsorbed by the magnetic block 27 through the magnetic ring 36, the limiting ring 35 is prevented from being separated from the side groove 25, and the stability of the limiting ring is enhanced.

The utility model discloses a set up spacing ring 35, magnetic ring 36 in the outside of axis body 31, make its and supporting seat 2 on side channel 25 and magnetic path 27 interact, strengthened the stability of axis body 31, avoided axis body 31 to break away from down the problem emergence of slide rail 21, improved the whole moving stability of bearing.

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 in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. 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 (7)

1. The utility model provides a lubricated magnetism cylindrical roller bearing of magnetic current body, includes base (1), supporting seat (2) and rotates seat (3), and the fixed supporting seat (2) that is provided with on base (1), install on supporting seat (2) can rotate seat (3) rather than pivoted, and the outside axostylus axostyle is installed in rotating seat (3), its characterized in that:

the rotating seat (3) comprises a shaft body (31), the inner side of the shaft body (31) is provided with a rotating structure, the outer side of the shaft body is provided with a retaining structure, and the retaining structure is arranged in the supporting seat (2) below and is connected with the supporting seat (2) in a sliding manner;

a side groove (25) is arranged on the supporting seat (2) and positioned at the outer side of the lower sliding rail (21), a plurality of through grooves (26) are also arranged between the side groove (25) and the inner groove (22), and magnetic blocks (27) are embedded in the through grooves (26);

the retaining structure comprises a limiting ring (35), the limiting ring (35) is installed in the side groove (25), a magnetic ring (36) is embedded on the inner wall of the limiting ring (35), one side of the magnetic ring (36) is in contact with the magnetic block (27), and the contact surfaces of the magnetic ring and the magnetic block attract each other.

2. The magnetic fluid lubricated magnetic cylindrical roller bearing according to claim 1, wherein the rotating structure comprises an upper slide rail (32) arranged on the lower surface of the shaft body (31), and a plurality of balls (33) rotating in the upper slide rail (32) are arranged in the upper slide rail (32).

3. A magnetic fluid lubricated magnetic cylindrical roller bearing according to claim 2, wherein a shaft sleeve (34) is provided inside the shaft body (31), and the shaft sleeve (34) is connected with an external shaft.

4. The magnetic fluid lubrication magnetic cylindrical roller bearing according to claim 1, wherein the upper surface of the support base (2) is provided with a lower slide rail (21) corresponding to the ball (33), the ball (33) is positioned in the lower slide rail (21), and the magnetic fluid (24) is injected into the lower slide rail (21).

5. A magnetic fluid lubricated magnetic cylindrical roller bearing according to claim 4, characterized in that inside the supporting seat (2) below the lower slide rail (21) is provided an inner groove (22), and inside the inner groove (22) is provided a permanent magnet (23).

6. A magnetic fluid lubricated magnetic cylindrical roller bearing according to claim 1, wherein the through slots (26) are distributed at equal intervals in a circle around the center point of the support base (2).

7. A magnetic fluid lubricated magnetic cylindrical roller bearing according to claim 1 wherein the inner sides of the magnetic blocks (27) and the permanent magnets (23) are attracted to each other.

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