Automobile hub unit with combined magnetic sealing ring

Abstract

The utility model relates to the technical field of automobile hubs, and discloses an automobile hub unit with a combined magnetic sealing ring, which comprises a flange, an outer ring, an inner ring and a steel ball, and a sealing structure is arranged between the outer ring and the inner ring. The magnetic ring is embedded into the second sealing piece, the outer end face of the magnetic ring is closer to the inner side of the hub than the outer end face of the second sealing piece, so that the magnetic ring can be better protected and prevented from being damaged, the extension framework is arranged, the first sealing piece at the top end of the extension framework abuts against the interior of the second abutting groove, and therefore the magnetic ring is prevented from being damaged. And the first sealing piece at the bottom end of the first metal framework abuts against the interior of the first abutting groove, so that the first metal framework and the second metal framework can be clamped with each other and abut against each other for sealing, the shock resistance of the hub unit is enhanced, and a certain protection effect is achieved on the whole hub unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile wheel hub, specifically a kind of automobile wheel hub unit with combined magnetic sealing ring. BACKGROUND

[0002] The main function of wheel hub unit is to bear and provide accurate guidance for the transmission of wheel hub, which bears axial load and radial load, and is a very important part in automobile parts. Many existing wheel hub units provide ABS signals by fixing and installing magnetic ring with output magnetic signal on the outer ring end face. When rotating normally, the evenly distributed magnetic blocks in the magnetic ring can continuously provide signals, and when braking, the outer ring of signal wheel hub unit stops rotating, the signal is interrupted, and the brake lock is prompted. This installation method is more convenient than installing sensors, but the magnetic ring of this wheel hub unit is separately arranged beside the sealing assembly, the production cost is higher, the whole wheel hub unit has larger runout, the shock resistance effect is limited, and the magnetic ring is easily damaged by vibration.

[0003] Therefore, the skilled in the art provides an automobile wheel hub unit with combined magnetic sealing ring to solve the problems raised in the above background. SUMMARY

[0004] The utility model aims at providing an automobile wheel hub unit with combined magnetic sealing ring to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An automobile wheel hub unit with combined magnetic sealing ring, comprising a flange, an outer ring, an inner ring and a steel ball, a sealing structure is arranged between the outer ring and the inner ring.

[0007] The sealing structure comprises a first metal framework and a second metal framework, the cross section of the first metal framework is inverted L-shaped, the surface of the first metal framework is provided with a first sealing element, the cross section of the second metal framework is C-shaped, the outer surface and top of the second metal framework are provided with a second sealing element, the outer side surface of the second metal framework is fixedly provided with a magnetic ring, and the upper and lower side surfaces of the magnetic ring are fixedly connected with the second sealing element.

[0008] As a further scheme of the utility model: the magnetic ring is embedded in the inside of the second sealing element.

[0009] As a further scheme of the utility model: the outer side surface of the first metal framework is fixed with an extension framework, and the surface of the extension framework is also provided with the first sealing piece, the inner side of the top end of the second sealing piece is recessed with a second abutting groove, and the first sealing piece at the end of the extension framework abuts against the inside of the second abutting groove.

[0010] As a further scheme of the utility model: the inner side of the bottom of the second metal framework is provided with a first abutting groove, and the first sealing piece at the end of the first metal framework abuts against the inside of the first abutting groove.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] By embedding the magnetic ring in the inside of the second sealing piece, the outer end face of the magnetic ring is closer to the inner side of the hub than the outer end face of the second sealing piece, so that the magnetic ring can be better protected and damaged, by setting the extension framework, and the first sealing piece at the top end of the extension framework abuts into the second abutting groove, and the first sealing piece at the bottom end of the first metal framework abuts into the first abutting groove, so that the first metal framework and the second metal framework can be clamped and abutted and sealed, the shock resistance of the hub unit is enhanced, and the hub unit as a whole is protected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of an automobile hub unit with a combined magnetic sealing ring.

[0014] Figure 2 It is Figure 1 It is an enlarged structural schematic view of A in the middle.

[0015] In the drawing: 1, flange; 2, outer ring; 3, inner ring; 4, steel ball; 5, first metal framework; 6, second metal framework; 7, first sealing piece; 8, extension framework; 9, second sealing piece; 10, magnetic ring; 11, first abutting groove; 12, second abutting groove. DETAILED DESCRIPTION

[0016] Please refer to Figures 1-2 In the utility model embodiment, an automobile hub unit with a combined magnetic sealing ring comprises a flange 1, an outer ring 2, an inner ring 3 and a steel ball 4, and a sealing structure is arranged between the outer ring 2 and the inner ring 3.

[0017] The sealing structure comprises a first metal skeleton 5 and a second metal skeleton 6, the cross section of the first metal skeleton 5 is in inverted L shape, the surface of the first metal skeleton 5 is provided with a first sealing element 7, the cross section of the second metal skeleton 6 is in C shape, the outer surface and the top of the second metal skeleton 6 are provided with a second sealing element 9, the outer side surface of the second metal skeleton 6 is fixedly provided with a magnetic ring 10, and the upper and lower side surfaces of the magnetic ring 10 are fixedly connected with the second sealing element 9.

[0018] Preferably, the magnetic ring 10 is embedded in the inside of the second sealing element 9, that is, the outer end surface of the magnetic ring 10 is closer to the inside of the hub than the outer end surface of the second sealing element 9, so that the magnetic ring 10 can be better protected.

[0019] Preferably, the outer side surface of the first metal skeleton 5 is fixedly connected with an extension skeleton 8, the surface of the extension skeleton 8 is also provided with the first sealing element 7, the top inside of the second sealing element 9 is concavely provided with a second abutting groove 12, and the first sealing element 7 located at the end of the extension skeleton 8 abuts against the inside of the second abutting groove 12.

[0020] Preferably, the inside of the bottom of the second metal skeleton 6 is provided with a first abutting groove 11, and the first sealing element 7 at the end of the first metal skeleton 5 abuts against the inside of the first abutting groove 11.

[0021] The working principle of the utility model is as follows: when the hub unit is used, the second sealing element 9 is arranged on the outer surface and the top of the second metal skeleton 6, the second sealing element 9 and the first sealing element 7 on the surface of the first metal skeleton 5 are in extrusion contact, a certain damping effect can be achieved, the magnetic ring 10 is surrounded by the second sealing element 9, the outer surface of the magnetic ring 10 is also located on the inside of the second sealing element 9, the magnetic ring 10 can be protected and damaged, the extension skeleton 8 is further arranged, the first sealing element 7 at the top of the extension skeleton 8 abuts into the second abutting groove 12, the first sealing element 7 at the bottom of the first metal skeleton 5 abuts into the first abutting groove 11, the first metal skeleton 5 and the second metal skeleton 6 can be clamped and abutted and sealed, and the jumping of the hub unit can be further damped.

[0022] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An automotive wheel hub unit having a combined magnetic seal ring, comprising a flange (1), an outer ring (2), an inner ring (3) and a steel ball (4), characterized in that: A sealing structure is arranged between the outer ring (2) and the inner ring (3); The sealing structure comprises a first metal framework (5) and a second metal framework (6), the cross section of the first metal framework (5) is inverted L-shaped, the surface of the first metal framework (5) is provided with a first sealing element (7), the cross section of the second metal framework (6) is C-shaped, the outer surface and the top of the second metal framework (6) are provided with a second sealing element (9), the outer side surface of the second metal framework (6) is fixedly provided with a magnetic ring (10), the upper and lower side surfaces of the magnetic ring (10) are fixedly connected with the second sealing element (9).

2. The automobile wheel hub unit having a combined magnetic seal ring according to claim 1, characterized in that: The magnetic ring (10) is embedded in the inside of the second sealing element (9).

3. The automotive wheel hub unit having a combined magnetic seal ring according to claim 1, characterized in that: The outer side surface of the first metal framework (5) is fixedly connected with an extension framework (8), and the surface of the extension framework (8) is also provided with the first sealing element (7), the top inside of the second sealing element (9) is concave and provided with a second abutting groove (12), and the first sealing element (7) located at the end of the extension framework (8) abuts against the inside of the second abutting groove (12).

4. The automotive wheel hub unit having a combined magnetic seal ring according to claim 1, wherein: The inside of the bottom of the second metal framework (6) is provided with a first abutting groove (11), and the first sealing element (7) at the end of the first metal framework (5) abuts against the inside of the first abutting groove (11).

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