A light start torque pressure mark hub unit bearing structure

Abstract

The utility model relates to the technical field of wheel hub unit bearing structure, and disclose a kind of light starting torque pressure mark wheel hub unit bearing structure, including flange, the outer surface of the flange is equipped with outer ring, the outer surface of the flange is located the inner side one end of outer ring and is equipped with inner ring, the outer surface of the one side of the flange is equipped with spline groove;Sealing ring, it is embedded between the flange and the one end of outer ring, and the other end of the outer ring and the inner ring between embedding has magnetic ring assembly. By adopting the sealing ring of metal material to seal between inner ring and outer ring, the friction of sealing ring surface and inner ring and outer ring surface is reduced in the process of rotation, sealing ring is embedded between outer ring and inner ring by outer ring and is positioned, outer ring two sides are equipped with oil guide groove, can be added lubricating oil to further reduce friction, to reduce the torque of bearing when using starting.

Description

Technical Field

[0001] This utility model relates to the technical field of hub unit bearing structure, specifically a hub unit bearing structure with light starting torque and resistant to indentation. Background Technology

[0002] Wheel hub bearings are components used in automobile axles to bear weight and provide precise guidance for the transmission of the wheel hub. During the operation of a car, wheel hub bearings must withstand axial force, radial force, and bending moment generated when the car turns.

[0003] For example, Chinese patent CN203328740U discloses a hub bearing structure, which includes an outer flange ring, an inner ring, and rolling elements located between the outer flange ring and the inner ring. Each row of rolling elements is evenly separated by a cage. The inner ring consists of three bearing rings, and the rolling elements are divided into a row of steel balls and a row of cylindrical rollers. The steel balls are disposed between the grooves on the inner ring and the outer flange ring, and the cylindrical rollers are disposed between the raceways on the inner ring and the outer flange ring. The steel balls have four-point contact with the inner ring and the outer flange ring, and the cylindrical rollers have line contact with the inner ring and the outer flange ring. Traditional hub unit bearing structures require a large torque during startup due to friction between the sealing ring and the cage. Therefore, a hub unit bearing structure with low starting torque and resistant to pressure marks is proposed to solve the above problem. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a lightweight starting torque and indentation resistant hub unit bearing structure, which has the advantage of lighter starting torque and solves the problem of requiring large torque during traditional starting processes.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goal of starting with relatively light torque, this utility model provides the following technical solution: a hub unit bearing structure with light starting torque and resistant to indentation, comprising:

[0008] A flange, wherein an outer ring is fitted on the outer surface of the flange, an inner ring is fitted on the inner end of the outer surface of the flange located inside the outer ring, and a spline groove is formed on one side of the outer surface of the flange;

[0009] A sealing ring is embedded between the flange and one end of the outer ring. A magnetic ring assembly is embedded between the other end of the outer ring and the inner ring. An outer frame is integrally mounted on the outer surface of the magnetic ring assembly. Several rollers are embedded on the outer surface of the outer frame to reduce the friction generated when the outer ring rotates.

[0010] Preferably, an outer ring is integrally installed on the outer surface of the sealing ring, and the flange and the outer surface of the outer ring are provided with mounting grooves that match the outer ring. The two ends of the outer ring are sealed by a sealing ring and a magnetic ring assembly. The sealing ring is made of metal, which reduces the friction between the surface of the sealing ring and the surfaces of the flange and the outer ring during rotation.

[0011] Preferably, the outer surfaces on both sides of the outer ring are provided with oil guide grooves, which can be used to add lubricating oil to further reduce friction, thereby reducing the torque of the bearing during start-up.

[0012] Preferably, a retainer is fitted on the outer surface of the flange inside the outer ring. The retainer is made of nylon, which can reduce the friction generated by the steel balls during rolling.

[0013] Preferably, the cage has several steel balls embedded inside, and the outer ring will cause the steel balls inside the cage to roll during rotation.

[0014] Preferably, the outer surface of the flange is provided with a nickel plating layer, which increases wear resistance and indentation resistance.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a light starting torque and indentation resistant hub unit bearing structure, which has the following beneficial effects:

[0017] By using a metal sealing ring to seal between the flange and the outer ring, friction between the sealing ring surface and the flange and outer ring surfaces is reduced during rotation. The sealing ring is embedded between the outer ring and the flange for positioning. Oil guide grooves are provided on both sides of the outer ring to add lubricating oil to further reduce friction. Secondly, the magnetic ring assembly at the other end uses a roller to contact and connect with the outer ring, reducing friction generated during rotation, thereby reducing the torque and rotational torque of the bearing during use and startup. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the present utility model;

[0020] Figure 3 This is a schematic diagram of the sealing ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the magnetic coil assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the outer frame of this utility model.

[0023] In the diagram: 1. Flange; 2. Inner ring; 3. Outer ring; 4. Magnetic ring assembly; 41. Outer frame; 42. Roller; 5. Sealing ring; 51. Outer ring; 52. Oil guide groove; 6. Cage; 7. Steel ball; 8. Spline groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides the following technical solution: a light starting torque, indentation resistant hub unit bearing structure, comprising:

[0026] In this embodiment, an outer ring 3 is fitted on the outer surface of the flange 1, an inner ring 2 is fitted on the inner end of the outer surface of the flange 1 located inside the outer ring 3, and a spline groove 8 is formed on one side of the outer surface of the flange 1.

[0027] The outer surface of the flange 1 is provided with a nickel plating layer, which increases wear resistance and indentation resistance.

[0028] In this embodiment, the sealing ring 5 is embedded between the flange 1 and one end of the outer ring 3. A magnetic ring assembly 4 is embedded between the other end of the outer ring 3 and the inner ring 2. An outer frame 41 is integrally mounted on the outer surface of the magnetic ring assembly 4. Several rollers 42 are embedded on the outer surface of the outer frame 41 to reduce the friction generated when the outer ring 3 rotates.

[0029] The outer surface of the sealing ring 5 is integrally mounted with an outer ring 51. The outer surfaces of the flange 1 and the outer ring 3 are provided with mounting grooves that match the outer ring 51. The two ends of the outer ring 3 are sealed by the sealing ring 5 and the magnetic ring assembly 4. The sealing ring 5 is made of metal, which reduces the friction between the surface of the sealing ring 5 and the surfaces of the flange 1 and the outer ring 3 during rotation.

[0030] It should also be noted in this embodiment that oil guide grooves 52 are provided on the outer surfaces of both sides of the outer ring 51, which can be used to add lubricating oil to further reduce friction, thereby reducing the torque of the bearing during start-up.

[0031] In this embodiment, a retainer 6 is fitted on the outer surface of the flange 1 inside the outer ring 3. The retainer 6 is made of nylon, which can reduce the friction generated by the steel ball 7 during rolling.

[0032] The cage 6 contains several steel balls 7, and the outer ring 3 rotates during the rotation process, which causes the steel balls 7 inside the cage 6 to roll.

[0033] The working principle of this embodiment is as follows:

[0034] The outer ring 3 is sealed at both ends by sealing rings 5 ​​and magnetic ring assembly 4. The sealing rings 5 ​​are made of metal, which reduces the friction between the surface of the sealing rings 5 ​​and the surfaces of the flange 1 and the outer ring 3 during rotation. The sealing rings 5 ​​are embedded between the outer ring 3 and the flange 1 through the outer ring for limiting. Oil guide grooves 52 are provided on both sides of the outer ring 51, which can add lubricating oil to further reduce friction, thereby reducing the torque of the bearing when it is started. At the same time, the cage 6 is made of lightweight nylon material, which can reduce the friction generated by the steel balls 7 during rolling. Secondly, the magnetic ring assembly 4 at the other end is connected to the outer ring 3 by the rolling of the roller 42, which reduces the friction generated during rotation, thereby reducing the torque of the bearing when it rotates.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low start torque pressure denting hub unit bearing structure, characterized by, include: Flange (1), the outer surface of the flange (1) is fitted with an outer ring (3), the outer surface of the flange (1) is fitted with an inner ring (2) at one end of the outer ring (3), and a spline groove (8) is opened on one side of the outer surface of the flange (1). A sealing ring (5) is embedded between the flange (1) and one end of the outer ring (3). A magnetic ring assembly (4) is embedded between the other end of the outer ring (3) and the inner ring (2). An outer frame (41) is integrally mounted on the outer surface of the magnetic ring assembly (4). Several rollers (42) are embedded on the outer surface of the outer frame (41). The rollers (42) reduce the friction generated when the outer ring (3) rotates.

2. A low start torque pressure groove hub unit bearing assembly according to claim 1 wherein: The outer surface of the sealing ring (5) is integrally mounted with an outer ring (51), and the outer surfaces of the flange (1) and the outer ring (3) are provided with mounting grooves that match the outer ring (51).

3. A low start torque pressure groove hub unit bearing assembly according to claim 2 wherein: Oil guide grooves (52) are provided on both outer surfaces of the outer ring (51).

4. A low start torque pressure groove hub unit bearing assembly as set forth in claim 1 wherein: The outer surface of the flange (1) is fitted with a retainer (6) inside the outer ring (3), and the retainer (6) is made of nylon.

5. The light starting torque resistant bearing structure for a hub unit according to claim 4, characterized in that: The cage (6) has several steel balls (7) embedded inside.

6. The light starting torque resistant bearing structure for a hub unit according to claim 1, characterized in that: The outer surface of the flange (1) is provided with a nickel plating layer.

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