Hub bearing of integrated sensor for car

Abstract

The utility model discloses a hub bearing integrated with a sensor for a car, which comprises a bearing inner ring, a bearing outer ring movably sleeved on the bearing inner ring and the sensor, one side of the bearing outer ring is movably connected with a sealing cover, an inner concave structure is formed on the inner side of the sealing cover, and a clearance space is formed between the inner concave structure on the inner side of the sealing cover and the bearing outer ring. The sensor is connected to one side of the bearing inner ring and located in the clearance space, so that the sensor is connected to one side of the bearing inner ring and located in the clearance space between the sealing cover and the bearing outer ring, and installation of the sensor can be achieved without damaging the circumferential side wall of the bearing outer ring.

Description

Technical Field

[0001] The utility model relates to a hub bearing with an integrated sensor for a car. Background Art

[0002] Wheel hub bearing is one of the key components of automobiles. It can withstand axial load and radial load and provide precise guidance for the rotation of the wheel hub.

[0003] For example, the wheel hub bearing described in the patent document of Chinese Patent Publication No. CN219706555U has a sensor disposed therein. Due to the limitation of the space inside the bearing and other factors, the sensor of the bearing is embedded in an opening of the circumferential side wall of the outer ring of the bearing. Such a setting requires the side wall of the outer ring of the bearing to be destroyed, and there is also the possibility of lubricant leaking from the opening in actual use. Utility Model Content

[0004] The utility model aims to provide a technical solution for a wheel hub bearing with integrated sensors for cars to address the deficiencies in the prior art, which can achieve installation of the sensor without destroying the circumferential side wall of the outer ring of the bearing.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] Wheel hub bearings with integrated sensors for passenger cars, including

[0007] The inner ring of the bearing and the outer ring of the bearing with a movable sleeve arranged on the inner ring of the bearing;

[0008] sensor;

[0009] A sealing cover is movably connected to one side of the bearing outer ring, a concave structure is formed inside the sealing cover, a gap space is formed between the concave structure inside the sealing cover and the bearing outer ring, and the sensor is connected to one side of the bearing inner ring and is located in the gap space.

[0010] By adopting the above technical solution, the sensor is connected to one side of the bearing inner ring and is located in the gap space between the sealing cover and the bearing outer ring, which can achieve the installation of the sensor without destroying the circumferential side wall of the bearing outer ring.

[0011] Furthermore, a plug-in flange is formed on the inner side of the sealing cover, and a first gap for the plug-in flange to fit into is formed between the bearing outer ring and the bearing inner ring. The sealing cover is plugged into the bearing outer ring through the plug-in flange.

[0012] Furthermore, one end of the outer side wall of the inserting flange is formed with an inclined chamfer.

[0013] Furthermore, a semi-open slot is provided on the inner side wall of the outer ring of the bearing, and a notch corresponding to the semi-open slot is formed on the side surface of the plug-in flange.

[0014] Furthermore, the sensor is provided with a sleeve structure, and the sensor is sleeved on one side of the inner ring of the bearing through the sleeve structure.

[0015] Furthermore, a mounting hole is provided through the surface of the sealing cover.

[0016] Furthermore, a hub flange is provided on one side of the bearing outer ring, the hub flange is embedded in the bearing inner ring, and a sealing ring is provided between the bearing outer ring and the hub flange.

[0017] Furthermore, the cross section of the sealing ring includes at least one U-shaped structure.

[0018] Furthermore, a first flange is circumferentially connected to the outer ring of the bearing.

[0019] Furthermore, the first flange and the bearing outer ring are formed integrally.

[0020] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0021] 1. The utility model can realize the installation of the sensor without destroying the circumferential side wall of the outer ring of the bearing;

[0022] 2. The sealing cover of the utility model is plugged into the outer ring of the bearing through the plug-in flange, and can be further fastened through the semi-open card slot and the notch on the side of the plug-in flange to improve the connection stability;

[0023] 3. The utility model provides at least one sealing ring with an I-shaped cross section between the hub flange and the bearing outer ring, which can effectively improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of the wheel hub bearing of the utility model;

[0026] Figure 2 This is a front structural schematic diagram of the wheel hub bearing of the utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the sensor of the utility model;

[0028] Figure 4 This is a schematic diagram of the front structure of the semi-open card slot of the utility model;

[0029] Figure 5 This is a partial enlarged structural diagram of the semi-open card slot of the utility model;

[0030] In the figure: 1-bearing outer ring; 11-first flange; 2-bearing inner ring; 3-rolling element; 4-cage;

[0031] 5-seal ring; 6-hub flange; 61-bolt; 62-flange structure;

[0032] 7-sensor; 71-magnetic ring; 72-sleeve structure;

[0033] 8 - sealing cover; 81 - semi-open card slot; 82 - plug-in flange; 83 - chamfered bevel; 84 - gap space; 85 - first gap; 86 - first mounting hole; 87 - second mounting hole. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] Example 1

[0038] A wheel hub bearing with integrated sensor for a car comprises a bearing inner ring 2, a bearing outer ring 1 movably sleeved on the bearing inner ring 2, and a wheel hub flange 6 located on one side of the bearing outer ring 1 and embedded in the bearing inner ring 2. Figure 1 As shown;

[0039] The wheel hub bearing unit comprises a sensor 7;

[0040] Rolling bodies 3 and retaining frames 4 cooperating with the rolling bodies are provided between the bearing inner ring 2 and the bearing outer ring 1, and between the bearing outer ring 1 and the hub flange 6. Figure 1 As shown;

[0041] A sealing cover 8 is movably connected to one side of the bearing outer ring 1. Figure 1 , Figure 2 As shown;

[0042] The inner side of the sealing cover 8 forms an inner concave structure. When the sealing cover 8 is disposed on one side of the bearing outer ring 1, a gap space 84 is formed between the inner concave structure and the bearing outer ring 1. Figure 1 As shown, the sensor 7 is connected to one side of the bearing inner ring 2 and is also located in the gap space 84;

[0043] Installing the sensor 7 in the gap space 84 can avoid damaging the circumferential side wall of the bearing outer ring 1 to achieve the installation of the sensor 7, thereby preventing the lubricating fluid in the hub bearing from leaking from the opening where the sensor 7 is installed.

[0044] The inner side of the sealing cover 8 is formed with a plug-in flange 82. Figure 1 As shown;

[0045] A first gap 85 is formed between the bearing outer ring 1 and the bearing inner ring 2 for the insertion flange 82 to enter. Figure 1 As shown;

[0046] By inserting the plug-in flange 82 into the first gap 82, the sealing cover 8 is installed on one side of the bearing outer ring 1;

[0047] Furthermore, the outer side wall of the plug-in flange 82 is interference fit with the inner side wall of the bearing outer ring 1;

[0048] The interference fit between the outer wall of the insert flange 82 and the inner wall of the bearing outer ring 1 can increase the connection stability between the sealing cover 8 and the bearing outer ring 1 .

[0049] In this embodiment, an outer side wall of the plug-in flange 82 is formed with a chamfer 83 at one end. Figure 1 As shown;

[0050] The chamfer 83 can facilitate the insertion of the plug-in flange 82 into the first gap 85, thereby assisting the insertion.

[0051] In this embodiment, a semi-open slot 81 is formed on the inner side wall of the bearing outer ring 1. Figure 1 , Figure 4 as well as Figure 5 As shown;

[0052] The side surface of the plug-in flange 82 is formed with a notch corresponding to the semi-open card slot 81;

[0053] After the plug-in flange 82 is inserted into the first gap 85, the sealing cover 8 can be rotated to rotate the slot, so that the semi-open slot 81 fits into the slot to achieve the snap connection;

[0054] The connection stability between the sealing cover 8 and the bearing outer ring 1 can be further improved by the engagement between the notch and the semi-open slot 81 .

[0055] The sensor 7 includes a magnetic ring 71 and a sleeve structure 72;

[0056] Figure 3 A partial cross section of the sensor 7 is shown, wherein the magnetic ring 71 is located at the front end of the sensor 7, and the sleeve structure 72 has a certain length;

[0057] The sensor 7 is sleeved on one side of the bearing inner ring 2 through a sleeve structure 72. Figure 1 As shown;

[0058] The inner wall of the sleeve structure 72 is interference-fitted with the outer wall of the bearing inner ring 2, so that the sensor 7 is stably connected to the bearing inner ring 2;

[0059] The sleeve structure 72 has a certain length, which further improves the connection stability between the sensor 7 and the bearing inner ring 2.

[0060] In this embodiment, a mounting hole is formed through the surface of the sealing cover 8;

[0061] The mounting holes include a first mounting hole 86 and a second mounting hole 87. Figure 1 As shown;

[0062] Providing the first mounting hole 86 and the second mounting hole 87 can increase the assembly range of the wheel hub bearing.

[0063] In this embodiment, the circumferential outer side wall of the bearing outer ring 1 is provided with a first flange 11. Figure 1 As shown;

[0064] The bearing outer ring 1 and the first flange 11 are formed integrally.

[0065] In this embodiment, the hub flange 6 is embedded in the center hole of the bearing inner ring 2;

[0066] The distal end of the hub flange 6, that is, the end passing through the central hole of the bearing inner ring 2, is formed with a flange structure 62, such as Figure 1 As shown, it is used to increase the connection stability between the hub flange 6 and the bearing inner ring 2;

[0067] A sealing ring 5 is provided between the hub flange 6 and the bearing outer ring 1;

[0068] Furthermore, the sealing ring 5 is located on the inner side of the joint between the hub flange 6 and the bearing outer ring 1, as shown in FIG. Figure 1 As shown;

[0069] In this embodiment, the cross section of the sealing ring 5 is two connected "in" shaped structures, such as Figure 1 As shown, the shape of the sealing ring 5 can effectively improve the sealing performance and effectively prevent external pollutants from entering the wheel hub bearing.

[0070] Example 2

[0071] This embodiment is different from the first embodiment in that, in this embodiment, the cross section of the sealing ring 5 is an "In"-shaped structure.

[0072] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A wheel hub bearing with an integrated sensor for a passenger car, comprising a bearing inner ring (2) and a bearing outer ring (1) movably sleeved on the bearing inner ring (2); a sensor (7); Features: A sealing cover (8) is movably connected to one side of the bearing outer ring (1), an inner concave structure is formed on the inner side of the sealing cover (8), a gap space (84) is formed between the inner concave structure on the inner side of the sealing cover (8) and the bearing outer ring (1), and the sensor (7) is connected to one side of the bearing inner ring (2) and is located in the gap space (84).

2. The wheel hub bearing with integrated sensor for a car according to claim 1, characterized in that: A plug-in flange (82) is formed on the inner side of the sealing cover (8), and a first gap (85) is formed between the bearing outer ring (1) and the bearing inner ring (2) for the plug-in flange (82) to fit into. The sealing cover (8) is plug-in-fitted with the bearing outer ring (1) via the plug-in flange (82).

3. The wheel hub bearing with integrated sensor for a car according to claim 2, characterized in that: One end of the outer side wall of the plug-in flange (82) is formed with an inclined chamfer (83).

4. The sensor-integrated wheel hub bearing for a car according to claim 2, characterized in that: The inner side wall of the bearing outer ring (1) is provided with a semi-open slot (81), and the side surface of the plug-in flange (82) is formed with a notch corresponding to the semi-open slot (81).

5. The sensor-integrated wheel hub bearing for a car according to claim 1, characterized in that: The sensor (7) is provided with a sleeve structure (72), and the sensor (7) is sleeved on one side of the bearing inner ring (2) through the sleeve structure (72).

6. The sensor-integrated wheel hub bearing for a car according to claim 1, characterized in that: A mounting hole is provided through the surface of the sealing cover (8).

7. The sensor-integrated wheel hub bearing for a car according to claim 1, characterized in that: A hub flange (6) is provided on one side of the bearing outer ring (1), the hub flange (6) is embedded in the bearing inner ring (2), and a sealing ring (5) is provided between the bearing outer ring (1) and the hub flange (6).

8. The sensor-integrated wheel hub bearing for a car according to claim 7, characterized in that: The cross section of the sealing ring (5) includes at least one I-shaped structure.

9. The sensor-integrated wheel hub bearing for a car according to claim 1, characterized in that: The bearing outer ring (1) is circumferentially connected to a first flange (11).

10. The sensor-integrated wheel hub bearing for a car according to claim 9, characterized in that: The first flange (11) and the bearing outer ring (1) are integrally formed.

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