A fan bearing

Abstract

The utility model relates to a fan bearing, which relates to the field of bearings, and includes an inner ring and an outer ring, and is characterized in that the inner ring and the outer ring are connected via a rib, and the rib has a predetermined operating length and supporting force, and can connect and divide the inner ring and the outer ring into a left chamber and a right chamber with predetermined containment. A roller retainer and a roller are provided in the left chamber, and the rollers are rotatably sleeved with the roller retainer. A steel ball retainer and a steel ball are provided in the right chamber, and the steel balls are rotatably sleeved with the steel ball retainer. The present application changes a row of steel balls into a roller structure without changing the original bearing dimensions, thereby increasing the bearing load-bearing capacity, and places the roller end close to the mass center of the fan, so that the roller bears more load.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a fan bearing. Background Art

[0002] Fan bearing is a type of bearing, which refers to the type of bearing used in air-cooled radiator fans. For engine cooling fan bearings, when the fan is heavy and the space is limited, the original double-row angular contact ball bearing structure has insufficient life and cannot meet the reliability requirements of the fan. Utility Model Content

[0003] Purpose of the utility model: to provide a fan bearing to solve the above problems existing in the prior art.

[0004] Technical solution: A fan bearing, comprising an inner ring and an outer ring, characterized in that the inner ring and the outer ring are connected via a rib, the rib has a predetermined operating length and supporting force, and can be connected to the inner ring and the outer ring and divided into a left chamber and a right chamber with predetermined accommodation. A roller retainer and a roller are provided in the left chamber, and the rollers are rotatably sleeved with the roller retainer. A steel ball retainer and a steel ball are provided in the right chamber, and the steel balls are rotatably sleeved with the steel ball retainer.

[0005] In a further embodiment, a sealing ring is provided between the inner ring and the outer ring, and the roller retainer is connected to the sealing ring on one side and connected to the rib on the other side.

[0006] In a further embodiment, the rib has a predetermined bending curvature and is disposed at a position of a central axis of the inner ring and the outer ring.

[0007] Beneficial effects: The utility model relates to a fan bearing, which relates to the field of bearings, and includes an inner ring and an outer ring, and is characterized in that the inner ring and the outer ring are connected via a rib, and the rib has a predetermined operating length and supporting force, and can connect and divide the inner ring and the outer ring into a left chamber and a right chamber with a predetermined containment capacity. A roller cage and a roller are provided in the left chamber, and the rollers are rotatably sleeved with the roller cage. A steel ball cage and a steel ball are provided in the right chamber, and the steel balls are rotatably sleeved with the steel ball cage. The present application changes a row of steel balls into a roller structure without changing the outer dimensions of the original bearing, thereby increasing the bearing capacity, and placing the roller end close to the mass center of the fan so that the roller bears more load. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the decomposition of this application.

[0009] The reference numerals in the figures are: sealing ring 1, roller cage 2, roller 3, steel ball 4, steel ball cage 5, outer ring 6, inner ring 7. DETAILED DESCRIPTION

[0010] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0011] Embodiment 1:

[0012] The fan bearing proposed in this embodiment includes an inner ring 7 and an outer ring 6, characterized in that the inner ring 7 and the outer ring 6 are connected by a rib, and the rib has a predetermined operating length and supporting force, and can connect the inner ring 7 and the outer ring 6 and divide them into a left chamber and a right chamber with predetermined accommodation. The left chamber is provided with a roller 3 retainer 2 and a roller 3, and the roller 3 is rotatably sleeved with the roller retainer 2. In a further preferred embodiment, the roller 3 is pressed and placed in the corresponding positioning hole of the roller retainer 2, and can be flexibly rotated. The right chamber is provided with a steel ball 4 retainer and a steel ball 4, and the steel ball 4 is rotatably sleeved with the steel ball retainer 5. In a further preferred embodiment, the steel ball 4 is pressed and placed in the corresponding positioning hole of the steel ball retainer 5, and can be flexibly rotated. A sealing ring 1 is provided between the inner ring 7 and the outer ring 6, and the roller 3 retainer 2 is connected to the sealing ring 1 on one side and to the rib on the other side. The rib has a predetermined bending curvature and is disposed at the center axis position of the inner ring 7 and the outer ring 6 .

[0013] Embodiment 2:

[0014] Based on the first embodiment, the relevant data of each component in this application are further described as follows:

[0015] 1. Theoretical data that the roller 3 structure parallels the steel ball 4 and does not affect other performances of the bearing itself:

[0016] Radial dynamic load rating of radial ball bearing: b m f c (icosα) 0.7 Z 2 / 3 D w 1.8 ;

[0017] Radial dynamic load rating of radial roller bearing 3: b m f c (iL wecosα) 7 / 9 Z 3 / 4 D w 29 / 27 ;

[0018] Since the roller 3 is in line contact and the steel ball 4 is in point contact, when the diameter of the roller 3 is close to the number of the steel balls 4, the bearing capacity of the roller 3 bearing will be greater than that of the ball bearing.

[0019] 2. Details of the fixed point of roller 3 mechanism in the specific position of the entire bearing:

[0020] The principle of fixing the position of the bearing roller 3 is as follows: the left side is limited by the sealing ring 1, and the right side is limited by the groove rib. Since the axial force of the bearing is borne by the steel balls, the roller 3 does not bear the axial force. When the roller 3 is subjected to radial force, the roller 3 moves freely in the axial area limited by the sealing ring 1 and the groove rib of the outer ring 16.

[0021] 3. Experimental data of wear resistance and durability:

[0022] Ball end:

[0023] Roller end:

[0024] According to the bearing life calculation formula, when the 3 ends of the bearing roller are replaced, the rated dynamic load of the 3 ends of the bearing roller is greater than the rated dynamic load of the ball structure, and the bearing life is increased exponentially.

[0025] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A fan bearing, comprising an inner ring and an outer ring, characterized in that: The inner ring and the outer ring are connected via a retaining edge, and the retaining edge has a predetermined working length and supporting force, and can connect and divide the inner ring and the outer ring into a left chamber and a right chamber with a predetermined containment capacity; The left chamber is provided with a roller retainer and a roller, and the roller is rotatably sleeved with the roller retainer; A steel ball retainer and a steel ball are arranged in the right chamber, and the steel ball is rotatably sleeved with the steel ball retainer.

2. A fan bearing according to claim 1, characterized in that: A sealing ring is arranged between the inner ring and the outer ring, one side of the roller retainer is connected to the sealing ring, and the other side is connected to the rib.

3. A fan bearing according to claim 2, characterized in that: The rib has a predetermined bending curvature and is disposed at the central axis position of the inner ring and the outer ring.

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