Self-locking hub bearing unit

Abstract

The utility model discloses a self-locking hub bearing unit, and belongs to the technical field of bearing units. The magnetic bearing comprises a bearing inner ring, balls are movably connected to the surface of the bearing inner ring, a bearing outer ring is movably connected to the surfaces of the balls, the width of the bearing inner ring is the same as that of the bearing outer ring, a groove is formed in the surface of the bearing outer ring, a magnetic ring body is movably connected to the interior of the groove, and the magnetic ring body is arranged in the groove. And a limiting ring is movably connected into the groove. According to the magnetic ring, the first circular ring of the magnetic ring body is arranged on the surface of the groove in a sleeving mode, the limiting ring is arranged on the surface of the groove in a sleeving mode, the left side of the limiting ring is attached to the right side of the first circular ring, and then the first circular ring is limited; therefore, the first circular ring is prevented from being separated from the bearing outer ring, the magnetic ring body is locked, and the device has the advantage of being good in magnetic ring fixing effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing units, in particular to a self-locking wheel hub bearing unit. Background Art

[0002] Wheel hub bearings are components used on automobile axles to bear weight and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads and are an important component of automobile load-bearing and rotation.

[0003] The mating surface between the magnetic ring and the outer flange of the current wheel hub bearing is a straight surface. If the interference fit of this structure is small, the magnetic ring may easily fall out during high-speed rotation of the car, resulting in product failure. Therefore, it is necessary to redesign the self-locking wheel hub bearing unit to effectively prevent the magnetic ring from falling out. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a self-locking wheel hub bearing unit, which has the advantage of good fixing effect of the magnetic ring, and solves the problem that the matching surface of the magnetic ring and the outer flange of the current wheel hub bearing is a straight surface. If the interference fit of this structure is small, the magnetic ring is easy to fall out during the high-speed rotation of the car, resulting in product failure.

[0005] The utility model provides the following technical solution: a self-locking wheel hub bearing unit, comprising a bearing inner ring, the surface of the bearing inner ring is movably connected with a ball, the surface of the ball is movably connected with a bearing outer ring, the width of the bearing inner ring is the same as the width of the bearing outer ring, the surface of the bearing outer ring is provided with a groove, the interior of the groove is movably connected with a magnetic ring body, the interior of the groove is movably connected with a limiting ring, the surface of the limiting ring is movably connected with a bolt, the bolt is threadedly connected to the bearing outer ring, the magnetic ring body comprises a first circular ring movably connected to the inner wall of the groove, the surface of the first circular ring is fixedly connected with a second circular ring, the width of the first circular ring is smaller than the width of the second circular ring. The width of the ring, the first ring is movably connected to the limiting ring, the surface of the second ring is fixedly connected with a ring end face, the inner diameter of the first ring is smaller than the inner diameter of the second ring, the inner diameter of the second ring is the same as the inner diameter of the ring end face, the outer diameter of the second ring is smaller than the outer diameter of the ring end face, the inner diameter of the first ring is smaller than the inner diameter of the ring end face, the outer diameter of the first ring is smaller than the outer diameter of the ring end face, the width of the first ring is larger than the width of the ring end face, the width of the second ring is larger than the width of the ring end face, the width of the groove is larger than the width of the first ring, and the widths of the first ring, the second ring, the ring end face and the limiting ring are all smaller than the width of the bearing outer ring.

[0006] The beneficial effects of the utility model are as follows: the utility model sets the first ring of the magnetic ring body on the surface of the groove, sets the limiting ring on the surface of the groove, so that the left side of the limiting ring fits with the right side of the first ring, thereby limiting the first ring. The utility model fixes the limiting ring with the outer ring of the bearing by bolts, thereby preventing the first ring from separating from the outer ring of the bearing, thereby locking the magnetic ring body, and the device has the advantage of good effect of fixing the magnetic ring. The utility model has the advantages of high hardness and not easy to rust through the outer ring and inner ring of the bearing made of stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the utility model.

[0008] Figure 2 It is a schematic cross-sectional view of the outer ring structure of the bearing of the utility model.

[0009] Figure 3 This is a schematic diagram of the structure of the magnetic ring body of the utility model.

[0010] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0012] like Figures 1 to 4As shown, the self-locking hub bearing unit of this embodiment includes a bearing inner ring 1, a ball 2 is movably connected to the surface of the bearing inner ring 1, a bearing outer ring 3 is movably connected to the surface of the ball 2, the width of the bearing inner ring 1 is the same as the width of the bearing outer ring 3, a groove 4 is provided on the surface of the bearing outer ring 3, a magnetic ring body 5 is movably connected inside the groove 4, a limiting ring 9 is movably connected inside the groove 4, a bolt 10 is movably connected to the surface of the limiting ring 9, and the bolt 10 is threadedly connected to the bearing outer ring 3, the magnetic ring body 5 includes a first circular ring 6 movably connected to the inner wall of the groove 4, a second circular ring 7 is fixedly connected to the surface of the first circular ring 6, and the width of the first circular ring 6 is smaller than the width of the second circular ring 7. The first circular ring 6 is movably connected to the limiting ring 9, and the surface of the second circular ring 7 is fixedly connected with a circular ring end face 8, the inner diameter of the first circular ring 6 is smaller than the inner diameter of the second circular ring 7, the inner diameter of the second circular ring 7 is the same as the inner diameter of the circular ring end face 8, the outer diameter of the second circular ring 7 is smaller than the outer diameter of the circular ring end face 8, the inner diameter of the first circular ring 6 is smaller than the inner diameter of the circular ring end face 8, the outer diameter of the first circular ring 6 is smaller than the outer diameter of the circular ring end face 8, the width of the first circular ring 6 is larger than the width of the circular ring end face 8, the width of the second circular ring 7 is larger than the width of the circular ring end face 8, the width of the groove 4 is larger than the width of the first circular ring 6, and the widths of the first circular ring 6, the second circular ring 7, the circular ring end face 8 and the limiting ring 9 are all smaller than the width of the bearing outer ring 3.

[0013] refer to Figure 1 , Figure 2 and Figure 4 The bearing outer ring 3 and the bearing inner ring 1 are both made of stainless steel.

[0014] In this embodiment, the bearing outer ring 3 and the bearing inner ring 1 made of stainless steel have the advantages of high hardness and low corrosion resistance.

[0015] refer to Figure 1 , Figure 2 and Figure 4 The surface of the bolt 10 is sprayed with a layer structure of anti-rust paint.

[0016] In this embodiment, anti-rust paint is sprayed on the surface of the bolt 10 to protect the bolt 10 .

[0017] refer to Figure 1 , Figure 2 and Figure 4 The surface of the limit ring 9 is sprayed with an anti-rust coating, and the limit ring 9 is formed by cutting a steel pipe.

[0018] In this embodiment, an anti-rust coating is sprayed on the surface of the limiting ring 9 to prevent the limiting ring 9 from rusting.

[0019] refer to Figure 2 and Figure 4 , the surface of the ball is provided with lubricating oil.

[0020] In this embodiment, the provision of lubricating oil can facilitate the rolling of the ball 2, thereby improving the use effect of the device.

[0021] refer to Figure 1 , Figure 2 and Figure 4 A sealing shaft cover is fixedly connected to the surface of the bearing inner ring 1, and the sealing shaft cover is movably connected to the bearing outer ring 3.

[0022] In this embodiment, the sealing shaft cover is provided to prevent impurities in the external environment from entering between the bearing outer ring 3 and the bearing inner ring 1.

[0023] The utility model sets the first circular ring 6 of the magnetic ring body 5 on the surface of the groove 4, and sets the limiting ring 9 on the surface of the groove 4 so that the left side of the limiting ring 9 fits with the right side of the first circular ring 6, thereby limiting the first circular ring 6. The utility model fixes the limiting ring 9 to the bearing outer ring 3 by bolts 10, thereby preventing the first circular ring 6 from separating from the bearing outer ring 3, and thereby locking the magnetic ring body 5.

Claims

1. A self-locking hub bearing unit, comprising a bearing inner ring (1), characterized in that: The surface of the bearing inner ring (1) is movably connected to a ball (2), and the surface of the ball (2) is movably connected to a bearing outer ring (3). The width of the bearing inner ring (1) is the same as that of the bearing outer ring (3). The surface of the bearing outer ring (3) is provided with a groove (4), and the interior of the groove (4) is movably connected to a magnetic ring body (5). The interior of the groove (4) is movably connected to a limiting ring (9), and the surface of the limiting ring (9) is movably connected to a bolt (10), and the bolt (10) is threadedly connected to the bearing outer ring (3). The magnetic ring body (5) includes a first circular ring (6) movably connected to the inner wall of the groove (4), and the surface of the first circular ring (6) is fixedly connected to a second circular ring (7), and the width of the first circular ring (6) is smaller than the width of the second circular ring (7). The first circular ring (6) and the limiting ring (9) are connected to each other. 9) is movably connected, the surface of the second circular ring (7) is fixedly connected with a circular ring end face (8), the inner diameter of the first circular ring (6) is smaller than the inner diameter of the second circular ring (7), the inner diameter of the second circular ring (7) is the same as the inner diameter of the circular ring end face (8), the outer diameter of the second circular ring (7) is smaller than the outer diameter of the circular ring end face (8), the inner diameter of the first circular ring (6) is smaller than the inner diameter of the circular ring end face (8), the outer diameter of the first circular ring (6) is smaller than the outer diameter of the circular ring end face (8), the width of the first circular ring (6) is larger than the width of the circular ring end face (8), the width of the second circular ring (7) is larger than the width of the circular ring end face (8), the width of the groove (4) is larger than the width of the first circular ring (6), and the widths of the first circular ring (6), the second circular ring (7), the circular ring end face (8) and the limiting ring (9) are all smaller than the width of the bearing outer ring (3).

2. A self-locking hub bearing unit according to claim 1, characterized in that: The bearing outer ring (3) and the bearing inner ring (1) are both made of stainless steel.

3. A self-locking hub bearing unit according to claim 2, characterized in that: The surface of the bolt (10) is sprayed with a layer structure of anti-rust paint.

4. A self-locking hub bearing unit according to claim 3, characterized in that: The surface of the limiting ring (9) is sprayed with an anti-rust coating, and the limiting ring (9) is formed by cutting a steel pipe.

5. A self-locking hub bearing unit according to claim 4, characterized in that: The surface of the ball is provided with lubricating oil.

6. A self-locking hub bearing unit according to claim 1, 2 or 5, characterized in that: A sealing shaft cover is fixedly connected to the surface of the bearing inner ring (1), and the sealing shaft cover is movably connected to the bearing outer ring (3).

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