CN110259817B

CN110259817B - Thrust bearing mechanism

Info

Publication number: CN110259817B
Application number: CN201910560668.4A
Authority: CN
Inventors: 何克锋; 徐海
Original assignee: Kunshan Ping Tai Electronic Co ltd
Current assignee: Kunshan Ping Tai Electronic Co ltd
Priority date: 2019-04-29
Filing date: 2019-06-26
Publication date: 2024-04-30
Anticipated expiration: 2039-06-26
Also published as: CN210087826U; CN110259817A

Abstract

The invention relates to a thrust bearing mechanism, which comprises a bearing and an axle center penetrating in the bearing, wherein the bearing is a ceramic bearing, the axle center is a ceramic axle center, the outer surface of the axle center is provided with an extending edge along the circumferential direction of the axle center, the bearing comprises a first bearing part and a second bearing part which are connected, the first bearing part is connected with the end face of the second bearing part, and the end face of the first bearing part connected with the second bearing part is provided with a groove surface for the extending edge to penetrate; compared with the prior art, the invention has the advantages that: the abrasion-resistant piece at the bottom of the bearing and the axis are effectively prevented from being rubbed, the service life problem of the existing ultrathin fan is solved, and particularly, the service life of 5 years is guaranteed; adopt ceramic bearing and ceramic axle center, effective noise reduction brings better use experience for the user.

Description

Thrust bearing mechanism

Technical Field

The invention relates to the field of fan bearings, in particular to a thrust bearing mechanism.

Background

Notebook computers are increasingly lighter and thinner, have increasingly higher performance trends, require more stringent heat dissipation, have fan heights that are compressed again and again, but the performance is continually improved, and challenges for miniature hubs are aggravated in particular!

At present, the ultra-thin fan adopts the welding of a metal turning axle center and a blade axle made of stainless steel SUS so as to realize the requirement of high compression of the fan. However, the axial length of the stainless steel SUS is limited by the height of the fan, and the axial bearing area is insufficient, so that the service life of the fan is reduced to a certain extent.

The ceramic shaft center is superior to stainless steel SUS in hardness and wear resistance, and is very suitable for use in thin fans, however, the characteristics of two different materials, namely ceramic and stainless steel SUS, cannot be welded with the shaft of the stainless steel SUS, so that the ceramic shaft center cannot be applied to thin fans all the time.

Disclosure of Invention

The invention aims at: a thrust bearing mechanism is provided.

The technical scheme of the invention is as follows: the thrust bearing mechanism comprises a bearing and an axle center penetrating in the bearing, wherein the bearing is a ceramic bearing, the axle center is a ceramic axle center, an extending edge extends outwards along the circumference of the outer surface of the axle center, the bearing comprises a first bearing part and a second bearing part which are connected, the first bearing part is connected with the end face of the second bearing part, and a groove face for the extending edge to penetrate is formed in the end face, connected with the second bearing part, of the first bearing part.

Further: the extending edge is perpendicular to the central axis of the axle center.

Further: the end face, connected with the first bearing part and the second bearing part, is provided with a groove face parallel to the end face, and the extension edge is positioned in the groove face.

Further: and a plurality of oil grooves parallel to the end face are also formed in the groove face, and the oil grooves are outwards dispersed from the center of the end face.

Further: the groove surfaces are arranged on at least one of the end surfaces of the first bearing part and the second bearing part, and the sum of the heights of all the groove surfaces is equal to the thickness of the extension edge.

Further: one end of the shaft center connected with the bearing is connected with a metal section.

Further: the end surfaces of the first bearing part and the second bearing part are identical in shape and size.

Compared with the prior art, the invention has the advantages that: the abrasion-resistant piece at the bottom of the bearing and the axis are effectively prevented from being rubbed, the service life problem of the existing ultrathin fan is solved, and particularly, the service life of 5 years is guaranteed; adopt ceramic bearing and ceramic axle center, effective noise reduction brings better use experience for the user.

Drawings

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention:

FIG. 1 is a diagram illustrating the assembled use of the present invention;

FIG. 2 is an axial cross-sectional view of the present invention;

FIG. 3 is a perspective view of the hub of the present invention;

FIG. 4 is a block diagram of a bearing according to the present invention;

wherein: 1. an axle center; 1a, an extension edge; 2, a bearing; 2a, a first bearing part; 2b, a second bearing portion; 2c, groove surfaces; 2d, an oil groove; 3. wear-resistant plate.

Detailed Description

Examples: the thrust bearing mechanism comprises a bearing 2 and an axle center 1 penetrating through the bearing 2, wherein the axle center 1 movably penetrates along the central axis of the bearing 2, the bearing 2 is a ceramic bearing, the axle center 1 is a ceramic axle center, the ceramic material is effective in noise reduction and wear resistance, an extending edge 1a extends outwards along the circumferential direction of the outer surface of the axle center 1, and the extending edge 1a is perpendicular to the central axis of the axle center 1, so that the structure is more stable and the manufacturing is convenient.

The bearing comprises a first bearing part 2a and a second bearing part 2b which are connected, wherein the first bearing part 2a is connected with the end face of the second bearing part 2b, and a groove face 2c for the extending edge 1a to penetrate is formed in the end face, connected with the second bearing part 2b, of the first bearing part 2 a. The groove surface 2c is formed on at least one of the end surfaces of the first bearing portion 2a and the second bearing portion 2b, and the sum of the heights of all the groove surfaces 2c is equal to the thickness of the extension edge 1 a. In this embodiment, the end surfaces of the first bearing portion 2a and the second bearing portion 2b connected to each other are provided with a groove surface 2c, the groove surfaces 2c are parallel to the end surfaces of the first bearing portion 2a and the second bearing portion 2b, and the extending edge 1a is located in the groove surface 2c and rotates in the groove surface 2c, so that the groove surface 2c defines the position of the extending edge 1a, and shake displacement of the shaft center 1 in the direction of the central axis of the bearing 2 is effectively prevented, so that friction between the bottom of the shaft center 1 and the wear pad 3 located below the bearing 2 after assembly and use is avoided.

The groove face 2c is internally provided with an oil groove 2d parallel to the end face, the oil groove 2d diverges outwards from the center of the end face, and in this embodiment, the oil grooves 2d are equidistantly distributed and are all arc-shaped with the same shape and size, so that lubricating oil is uniformly distributed in the groove face 2c during rotation.

One end of the shaft center 1 connected with the bearing 2 is connected with a metal section, so that welding is facilitated.

The end surfaces of the first bearing part 2a and the second bearing part 2b are identical in shape and size, and are connected more tightly.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. While the term "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and are not intended to limit the scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a single embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to specific embodiments, and that the embodiments may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A thrust bearing mechanism, characterized in that: the novel ceramic bearing comprises a bearing (2) and an axle center (1) penetrating in the bearing (2), wherein the bearing (2) is a ceramic bearing, the axle center (1) is a ceramic axle center, an extending edge (1 a) extends outwards along the circumference of the outer surface of the axle center (1), the bearing (2) comprises a first bearing part (2 a) and a second bearing part (2 b) which are connected, the first bearing part (2 a) is connected with the end face of the second bearing part (2 b), and a groove face (2 c) for the extending edge (1 a) to penetrate is formed in the end face, connected with the second bearing part (2 b), of the first bearing part (2 a);

The end face, connected with the first bearing part (2 a) and the second bearing part (2 b), is provided with a groove surface (2 c) parallel to the end face, and the extension edge (1 a) is positioned in the groove surface (2 c);

The novel oil groove structure is characterized in that a plurality of oil grooves (2 d) parallel to the end face are further formed in the groove face (2 c), the oil grooves (2 d) are outwards dispersed and distributed from the center of the end face, the oil grooves (2 d) are equidistantly distributed and are arc-shaped with the same shape and size, and one end far away from the center is not connected with the edge of the groove face (2 c).

2. A thrust bearing mechanism as claimed in claim 1, wherein: the extension edge (1 a) is perpendicular to the central axis of the axle center (1).

3. A thrust bearing mechanism as claimed in claim 1, wherein: the groove surfaces (2 c) are formed on at least one of the end surfaces of the first bearing part (2 a) and the second bearing part (2 b), and the sum of the heights of all the groove surfaces (2 c) is equal to the thickness of the extension edge (1 a).

4. A thrust bearing mechanism as claimed in claim 1, wherein: one end of the shaft center (1) connected with the bearing (2) is connected with a metal section.

5. A thrust bearing mechanism as claimed in claim 1, wherein: the end surfaces of the first bearing part (2 a) and the second bearing part (2 b) are identical in shape and size.