A hub with a gear ring structure

Abstract

The utility model belongs to heavy -duty truck axle technical field discloses a kind of hub with gear ring structure, including hub body, and hub body is equipped with bearing seat hole one and bearing seat hole two, the inner wall of bearing seat hole one and the inner wall of bearing seat hole two are respectively connected with outer bearing and inner bearing, and hub body is connected with flange plate, and flange plate is equipped with tire bolt hole, and the inner wall sliding connection of tire bolt hole is equipped with connecting bolt, and hub body is equipped with several groups of gear slot, and several groups of gear slot are arranged in annular array.The utility model directly sets up gear slot in hub body and is arranged in annular array, compared with traditional split gear ring, can effectively avoid cumulative error generated due to assembly, ensure the high-precision coaxial degree of gear slot and bearing seat hole, to improve the stability and accuracy of ABS sensor signal;Meanwhile, integrated structure eliminates the risk of gear ring loosening, wear, enhances the overall strength and reliability of hub, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of heavy-duty vehicle axle technology, and in particular to a wheel hub with a toothed ring structure. Background Technology

[0002] The axle and wheel hub are crucial components of a car, supporting the vehicle's weight and transmitting engine power to the tires, driving their rotation and enabling vehicle movement. With increasing demands for vehicle safety, the design and matching precision of components related to the ABS anti-lock braking system (ABS) has also increased. The gear ring, mounted on the wheel hub, rotates with the wheel, cutting the magnetic lines of force generated by the ABS sensor, causing the sensor to produce an AC voltage that is transmitted to the electronic control unit (ECU). As a component within the ABS anti-lock braking system, the precision of the gear ring directly affects the accuracy of the signal.

[0003] The currently widely used structure is to press-fit the gear ring onto the wheel hub. Although this structure is simple in design and easy to manufacture, there are dimensional tolerances in the machining of the mating surfaces of the gear ring and the wheel hub. After pressing, these errors are superimposed, resulting in a large deviation between the actual interference fit and the design value. If the interference fit is insufficient, a gap will appear between the gear ring and the wheel hub, causing relative slippage during rotation. This can lead to the loss or malfunction of ABS sensor signals, affecting the ABS system's judgment on braking. Utility Model Content

[0004] The present invention aims to provide a wheel hub with a toothed ring structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wheel hub with a toothed ring structure includes a wheel hub body. The wheel hub body has a bearing seat hole one and a bearing seat hole two. An outer bearing and an inner bearing are respectively connected to the inner walls of the bearing seat hole one and the bearing seat hole two. The wheel hub body is connected to a flange. The flange has tire bolt holes. A connecting bolt is slidably connected to the inner wall of the tire bolt holes. The wheel hub body has a plurality of toothed grooves, which are arranged in a ring array.

[0007] Preferably, the wheel hub body has an oil seal hole, which is connected to the bearing seat hole.

[0008] Preferably, the wheel hub body has a weight-reducing cavity.

[0009] Preferably, the hub body is made of a lightweight, rigid material.

[0010] Preferably, the flange is integrally formed with the hub body.

[0011] Preferably, the hub body has an outer annular groove.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0013] (1) This technical solution directly opens the tooth grooves on the wheel hub body and arranges them in a ring array. Compared with the traditional split tooth ring, it can effectively avoid the cumulative error caused by assembly, ensure the high-precision coaxiality of the tooth grooves and bearing seat holes, thereby improving the stability and accuracy of the ABS sensor signal. At the same time, the integrated structure eliminates the risk of tooth ring loosening and wear, enhances the overall strength and reliability of the wheel hub, and reduces maintenance costs. In addition, this design simplifies the production process, reduces the number of parts and assembly steps, and takes into account both performance improvement and cost optimization.

[0014] (2) By setting an oil seal hole, the sealing effect of the oil seal can effectively block external dust, mud, water and other impurities from entering the bearing housing hole 2, avoid the inner bearing from being worn or corroded by impurities, and prevent the leakage of grease inside the bearing, ensuring that the inner bearing is in a good lubrication state for a long time and extending its service life.

[0015] (3) By setting up a weight-reducing cavity, the overall mass of the wheel hub can be effectively reduced, achieving vehicle lightweighting. This not only reduces energy consumption during vehicle operation but also reduces the load on the suspension system, improving vehicle handling agility and acceleration performance. Furthermore, the design of the weight-reducing cavity can optimize the structural stress distribution of the wheel hub. While ensuring the strength and support performance of the wheel hub, by removing materials from non-critical stress areas, stress is concentrated more on the load-bearing parts, improving the fatigue resistance and service life of the wheel hub.

[0016] (4) By using lightweight rigid materials to make the wheel hub body, the weight of the wheel hub itself can be significantly reduced, thereby reducing the unsprung mass of the vehicle. From a rigidity perspective, this type of material has high structural strength and resistance to deformation, and can reliably withstand various loads during vehicle operation, avoiding problems such as bending and cracking of the wheel hub under complex working conditions, thus ensuring driving safety.

[0017] (5) By integrating the flange and the wheel hub body, the connection gap and assembly stress between the flange and the wheel hub body are eliminated, making them a single load-bearing unit. This allows for a more even distribution of loads during vehicle operation, avoiding localized stress concentrations caused by separate connections. This significantly improves the fatigue resistance and reliability of the overall structure, reducing the risk of fractures, deformations, and other malfunctions. Furthermore, the assembly process for separate structures is eliminated, avoiding cumulative errors caused by tolerances and positioning errors between the flange and the wheel hub body. This ensures higher coaxiality accuracy between the tire bolt holes on the flange and the wheel hub bearing seat holes, resulting in more even stress distribution on the tires after installation and reducing sway and vibration during driving.

[0018] (6) By setting the outer ring groove of the wheel hub, it can cooperate with the tire bead, avoid hard contact between the tire and the wheel hub after installation, and protect the bead and wheel hub edge from wear. Attached Figure Description

[0019] Figure 1 This is a front sectional view of the present invention;

[0020] Figure 2 This is a side view of the present invention;

[0021] Reference numerals in the attached drawings: 1. Bearing seat hole one; 2. Hub body; 3. Bearing seat hole two; 4. Gear groove; 5. Oil seal hole; 6. Inner bearing; 7. Outer bearing; 8. Outer annular groove of the hub; 9. Connecting bolt; 10. Flange; 11. Tire bolt hole; 12. Weight reduction cavity. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0023] like Figure 1-2 The wheel hub shown includes a hub body 2, which is made of lightweight rigid materials such as aluminum alloy or magnesium alloy, resulting in high strength and light weight. Bearing seat holes 1 and 3 are respectively provided at the left and right ends of the hub body 2, with bearing seat holes 1 and 3 communicating with each other. The axle passes through the inner bearing 6 and outer bearing 7, and is tightly connected to the inner wall of the bearings. The outer wall of the outer bearing 7 and the outer wall of the inner bearing 6 are respectively mounted on the inner wall of bearing seat hole 1 and bearing seat hole 3. The rolling elements of the bearings allow the hub to rotate smoothly around the axle. A flange 10 is integrally provided on the outer side of the left end face of the hub body 2. The flange 10 has several sets of tire bolt holes 11 arranged in a circular array, and connecting bolts 9 are slidably connected to the inner wall of the tire bolt holes 11. When the vehicle is in motion, the engine power is transmitted to the axle through the transmission system, then to the wheel hub through the bearings, and finally the tires are rotated by the connecting bolts 9 on the flange 10, thus enabling vehicle movement.

[0024] like Figure 1-2As shown, an oil seal hole 5 is provided on the right end face of the wheel hub body 2, and the end of the oil seal hole 5 is connected to the bearing seat hole 2 3. After the oil seal is installed in the oil seal hole 5, it can effectively prevent external dust, mud, moisture and other impurities from entering the bearing seat hole 2 3, and avoid wear of the inner bearing 6 due to the intrusion of impurities. A weight reduction cavity 12 is provided on the left side of the wheel hub body 2, and the weight reduction cavity 12 is connected to the bearing seat hole 1. An outer annular groove 8 is provided on the left end face of the wheel hub body 2. While ensuring the strength of the wheel hub, the use of materials is reduced, the weight of the wheel hub is reduced, and lightweighting is achieved, which helps to improve vehicle handling and fuel economy; in addition, air can flow in the weight reduction cavity 12 and the outer annular groove 8 of the wheel hub, which accelerates heat dissipation and helps the wheel hub, tire and bearing to dissipate heat, avoiding performance degradation due to high temperature. Several sets of tooth grooves 4 are provided on the right outer side wall of the wheel hub body 2, and the several sets of tooth grooves 4 are arranged in a ring array. As the vehicle moves, the wheels rotate, cutting the magnetic lines of force generated by the ABS sensor. This causes the ABS sensor to generate an AC voltage, which is then transmitted to the electronic control unit (ECU). The ECU determines the wheel speed based on the signal, thereby enabling the ABS anti-lock braking function and ensuring driving safety.

[0025] The specific implementation process is as follows:

[0026] In use, first press the outer bearing 7 and the inner bearing 6 into the bearing seat hole 1 and bearing seat hole 3 of the wheel hub body 2, respectively; pass the axle through the inner bearing 6 and the outer bearing 7, ensuring a tight fit between the axle and the inner wall of the bearing; install the oil seal in the oil seal hole 5; install the tire on the tire bolt hole 11 of the flange 10 using the connecting bolts 9, and tighten the bolts to secure it; install the ABS sensor in a suitable position so that it can accurately sense the signal generated by the rotation of the tooth groove 4. After the vehicle starts, the power transmission causes the axle to drive the wheel hub to rotate, and the wheel hub rotates smoothly through the rolling of the bearing, driving the tire; during driving, the rotation of the tooth groove 4 triggers the ABS sensor to work, transmitting the signal to the ECU; at the same time, the weight reduction cavity 12 and the outer ring groove 8 of the wheel hub assist in heat dissipation, and the oil seal continuously seals and protects the bearing.

[0027] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A wheel hub with a toothed ring structure, characterized in that: The wheel hub body (2) includes a bearing seat hole 1 (1) and a bearing seat hole 2 (3). The inner walls of the bearing seat hole 1 (1) and the bearing seat hole 2 (3) are respectively connected to an outer bearing (7) and an inner bearing (6). The wheel hub body (2) is connected to a flange (10). The flange (10) has a tire bolt hole (11). The inner wall of the tire bolt hole (11) is slidably connected to a connecting bolt (9). The wheel hub body (2) has several sets of tooth grooves (4). The several sets of tooth grooves (4) are arranged in a ring array.

2. The wheel hub with a toothed ring structure as described in claim 1, characterized in that: The hub body (2) has an oil seal hole (5), which is connected to the bearing seat hole (3).

3. A wheel hub with a toothed ring structure as described in claim 1, characterized in that: The hub body (2) has a weight-reducing cavity (12).

4. A wheel hub with a toothed ring structure as described in claim 1, characterized in that: The hub body (2) is made of a lightweight rigid material.

5. A wheel hub with a toothed ring structure as described in claim 1, characterized in that: The flange (10) is integrally formed with the hub body (2).

6. A wheel hub with a toothed ring structure as described in claim 1, characterized in that: The hub body (2) has an outer annular groove (8).

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