High-strength automobile hub unit for large hub

Abstract

The utility model relates to the technical field of automobile hub units, in particular to a high-strength automobile hub unit for a large hub. Which comprises a hub body and is characterized in that the hub body is made of 35CrMo alloy steel, the hub body comprises a flange plate, a first mounting hole integrated with the flange plate is formed in one side in the flange plate, a second mounting hole is formed in the other side in the flange plate, an inner ring piece connected with the flange plate in a nested mode is arranged on the flange plate, and an outer ring piece connected with the flange plate in a nested mode is arranged on the inner ring piece. The inner ring is sleeved with the flange plate at intervals, the outer ring piece connected with the flange plate in a sleeving mode at intervals is arranged outside the inner ring, the retainers are arranged between the outer ring piece and the inner ring piece and between the outer ring piece and the flange plate, and the combined design of the inner ring piece, the outer ring piece, the retainers and the rollers is adopted, so that friction losses are effectively reduced, the rotating efficiency is improved, meanwhile, loads are dispersed, and the bearing capacity is improved. The service life of the bearing is prolonged; the integrated sensor can monitor the working state of the hub in real time, potential problems can be found and early warned in time, and the driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hub units, in particular to a high-strength automobile hub unit for large wheels. Background Art

[0002] With the continuous development of the automobile industry, vehicles have higher and higher requirements for wheels. Traditional wheel hub materials and designs often cannot meet the requirements of modern large vehicles for strength, durability and intelligent monitoring. Therefore, it is particularly important to develop a wheel hub unit with both high strength and good durability.

[0003] A Chinese patent discloses an automobile wheel hub unit (authorization announcement number: CN201931936U) including a spindle, bolts, rollers, an outer ring, a retaining frame, an inner ring, and an inner ring clamping nut. A keyway-shaped groove is provided on the external thread of the inner ring clamping nut, and the groove is interference fit with the wedge block. However, the material and design of this automobile wheel hub unit are difficult to meet the requirements of modern large vehicles for strength, durability and intelligent monitoring. Therefore, a high-strength automobile wheel hub unit for large wheels is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that the materials and designs of automobile hub units are difficult to meet the requirements of modern large vehicles for strength, durability and intelligent monitoring, and to propose a high-strength automobile hub unit for large wheels.

[0005] The utility model adopts the following technical scheme to solve the technical problem: the utility model discloses a high-strength automobile wheel hub unit for large wheel hub, comprising a wheel hub body, characterized in that: the wheel hub body is made of 35CrMo alloy steel, the wheel hub body comprises a flange, one side of the flange is provided with a first mounting hole integrated with the flange, and the other side is provided with a second mounting hole, the flange is provided with an inner ring member nested and connected with the flange, the outer side of the inner ring is provided with an outer ring member spaced and sleeved with the flange, a retainer is provided between the outer ring member and the inner ring member and between the outer ring member and the flange, a plurality of rollers nested and connected with the retainer are provided in the retainer, a sensor is connected to one side of the center of the outer ring member, a gap is provided at the connection between the two ends of the inner ring member and the outer ring member, an upper sealing ring assembly is provided in the gap, an end cover is provided at one side of the outer ring member, a lower sealing ring is provided in the gap at the junction of the flange and the outer ring, and the double protection of the upper sealing ring assembly and the lower sealing ring forms an effective defense line to prevent pollutants such as moisture and dust from invading the interior of the bearing system. This not only maintains the cleanliness of the bearing, but also avoids corrosion and wear caused by contaminants, further extending the service life of the wheel hub.

[0006] Preferably, the inner wall of the end cap is covered with a sound insulation layer, and a shock-absorbing soft pad is provided at the connection between the end cap and the edge of the outer ring member. The inner wall of the end cap is covered with a sound insulation layer, and a shock-absorbing soft pad is additionally provided at the connection between the end cap and the edge of the outer ring member. This design aims to reduce the noise generated during driving and improve the riding comfort. The sound insulation layer can absorb and block the noise transmission, while the shock-absorbing soft pad can effectively relieve the vibration and impact caused by the uneven road surface, creating a quieter and more stable driving environment for passengers.

[0007] Preferably, the inner ring member includes a wide inner ring, a narrow inner ring is provided on one side of the wide inner ring, the wide inner ring and the narrow inner ring are in contact with each other, and a gear ring is provided on the outer side of the wide inner ring. The inner ring member adopts a design combining a wide inner ring and a narrow inner ring, and a gear ring is additionally provided on the outer side of the wide inner ring. This double-row angular contact ball bearing structure not only improves the radial and axial load-bearing capacities of the wheel hub, but also enhances the rotation accuracy. The presence of the gear ring provides a stable signal source for the sensor, facilitating the precise control of the rotation speed and position of the wheel hub.

[0008] Preferably, the sensor includes a polar axis, one end of the polar axis is associated with the gear ring, the other end is connected with an induction coil, a permanent magnet is provided on one side of the induction coil, a cable is connected to one side of the permanent magnet, and a housing is commonly installed outside the polar axis, the induction coil and the permanent magnet. Based on the principle of the Hall effect, when the gear ring rotates, it will cause a magnetic field change, which is then captured by the induction coil and converted into an electrical signal. By analyzing these signals, the rotation speed and position information of the wheel hub can be accurately judged, providing key data support for the vehicle control system.

[0009] Preferably, the upper sealing ring assembly includes a first sealing ring, one end of the first sealing ring is connected with a metal skeleton, and the other end of the metal skeleton is connected with a second sealing ring. Such a design not only enhances the sealing effect, but also improves the overall strength and stability of the sealing ring. The addition of the metal skeleton enables the sealing ring to maintain a good shape and sealing performance under high-pressure environments, effectively preventing the intrusion of pollutants.

[0010] Preferably, two fixing bolts are provided at both ends of the bottom of the flange plate, and the two fixing bolts are arranged correspondingly. This symmetrical arrangement ensures that the wheel hub can be evenly stressed during high-speed rotation, avoiding the imbalance phenomenon caused by uneven loading. At the same time, it simplifies the installation process, and the wheel hub can be quickly loaded and unloaded only by using standard tools, improving the maintenance efficiency.

[0011] The advantages of the present utility model are as follows:

[0012] The hub body of this application is made of 35CrMo alloy steel, which has excellent mechanical properties, can maintain stable deformation ability under harsh road conditions, and significantly extends the service life; the combined design of the inner ring part, outer ring part, cage and rollers effectively reduces friction loss, improves the rotation efficiency, and at the same time disperses the load, extending the service life of the bearing; the integrated sensor can monitor the working state of the hub in real time, detect and warn potential problems in time, and improve driving safety; the design of the upper and lower seal ring assemblies and the metal skeleton forms a multiple protection mechanism, effectively preventing the intrusion of pollutants and maintaining the cleanliness of the bearing system; the sound insulation layer and shock-absorbing soft pad design in the end cover effectively absorb and isolate the noise and vibration generated during driving, improving the riding comfort; the fixed bolt design at the bottom of the flange simplifies the installation and disassembly process of the hub, facilitating daily maintenance and repair work. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of the present invention.

[0015] Figure 2 For the present invention Figure 1 An enlarged view of A in it.

[0016] Figure 3 It is a schematic structural diagram of the sensor of the present invention.

[0017] Figure 4 It is a top view of the structure of the present invention.

[0018] In the figure: 1, end cover; 2, upper seal ring; 3, roller; 4, cage; 5, wide inner ring; 6, gear ring; 7, narrow inner ring; 8, outer ring part; 9, lower seal ring; 10, flange; 11, fixed bolt; 12, sensor; 13, polar axis; 14, induction coil; 15, permanent magnet; 16, housing; 17, cable; 18, sound insulation layer; 19, shock-absorbing soft pad; 20, first seal ring; 21, metal skeleton; 22, second seal ring; 23, hub body; 24, inner ring part. Detailed Description of the Invention

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0020] Please refer to Figures 1-4 As shown, an automotive wheel hub unit for high-strength large wheel hubs includes a wheel hub body 23, characterized in that: the material of the wheel hub body 23 is 35CrMo alloy steel, the wheel hub body 23 includes a flange 10, one side inside the flange 10 is provided with a first mounting hole integrated with the flange 10, and the other side is provided with a second mounting hole. An inner ring member 24 nested and connected with the flange 10 is provided on the flange 10. An outer ring member 8 sleeved at an interval with the flange 10 is provided outside the inner ring. Retainers 4 are provided between the outer ring member 8 and the inner ring member 24 and between the outer ring member 8 and the flange 10. A number of rollers 3 nested and connected with the retainer 4 are provided inside the retainer 4. A sensor 12 is connected to one side of the center of the outer ring member 8. There are gaps at the joints at both ends of the inner ring member 24 and the outer ring member 8, and upper seal ring 2 assemblies are provided in the gaps. An end cover 1 is provided on one side of the outer ring member 8. A lower seal ring 9 is provided in the gap at the junction of the flange 10 and the outer ring. The double protection of the upper seal ring 2 assembly and the lower seal ring 9 forms an effective defense line to prevent pollutants such as moisture and dust from invading the internal bearing system. This not only maintains the cleanliness of the bearing but also avoids corrosion and wear caused by pollutants, further extending the service life of the wheel hub.

[0021] In this embodiment, the inner wall of the end cover 1 is covered with a sound insulation layer 18, and a shock absorption soft pad 19 is provided at the connection between the edge of the end cover 1 and the outer ring member 8. The inner wall of the end cover 1 is covered with the sound insulation layer 18, and a shock absorption soft pad 19 is additionally provided at the connection between the edge of the end cover 1 and the outer ring member 8. This design aims to reduce the noise generated during driving and improve the riding comfort. The sound insulation layer 18 can absorb and block the transmission of noise, while the shock absorption soft pad 19 can effectively relieve the vibration and impact caused by uneven road surfaces, creating a quieter and more stable driving environment for passengers.

[0022] In this embodiment, the inner ring member 24 includes a wide inner ring 5. One side of the wide inner ring 5 is provided with a narrow inner ring 7. The wide inner ring 5 and the narrow inner ring are in contact with each other. A gear ring 6 is provided on the outer side of the wide inner ring 5. The inner ring member 24 adopts a design combining the wide inner ring 5 and the narrow inner ring 7, and a gear ring 6 is additionally provided on the outer side of the wide inner ring 5. The gear ring 6 has 54 teeth. This double-row angular contact ball bearing structure not only improves the radial and axial load-bearing capacities of the hub, but also enhances the rotational accuracy. The presence of the gear ring 6 provides a stable signal source for the sensor 12, facilitating the accurate control of the rotational speed and position of the hub.

[0023] In this embodiment, the sensor 12 includes a polar axis 13. One end of the polar axis 13 is associated with the gear ring 6, and the other end is connected to an induction coil 14. A permanent magnet 15 is provided on one side of the induction coil 14. A cable 17 is connected to one side of the permanent magnet 15. The outer sides of the polar axis 13, the induction coil 14, and the permanent magnet 15 are jointly installed with a housing 16. Based on the principle of the Hall effect, when the gear ring 6 rotates, it will cause a magnetic field change, which is then captured by the induction coil 14 and converted into an electrical signal. By analyzing these signals, the rotational speed and position information of the hub can be accurately judged, providing key data support for the vehicle control system.

[0024] In this embodiment, the upper sealing ring assembly includes a first sealing ring 20. One end of the first sealing ring 20 is connected to a metal skeleton 21, and the other end of the metal skeleton 21 is connected to a second sealing ring 22. Such a design not only enhances the sealing effect, but also improves the overall strength and stability of the sealing ring. The addition of the metal skeleton 21 enables the sealing ring to maintain a good shape and sealing performance even in a high-pressure environment, effectively preventing the intrusion of pollutants.

[0025] In this embodiment, fixing bolts 11 are provided at both ends of the bottom of the flange 10. The number of the fixing bolts 11 is 2 and they are arranged correspondingly. This symmetrical arrangement ensures that the hub can be evenly stressed during high-speed rotation, avoiding the imbalance phenomenon caused by eccentric loading. At the same time, the installation process is simplified, and the hub can be quickly loaded and unloaded only by using standard tools, improving the maintenance efficiency.

[0026] The implementation principle of this embodiment is as follows: The bearing system inside the wheel hub unit consists of an inner ring part 24, an outer ring part 8, a cage 4, rollers 3, etc. When the wheel rotates, the rollers 3 roll between the inner and outer ring parts 8, reducing the friction and wear caused by direct contact. The cage 4 ensures that the rollers 3 roll on the correct track, preventing collisions and misalignments; the sensor 12 is integrated into the wheel hub unit to monitor key parameters such as the temperature and rotational speed of the wheel hub in real time. When the parameters exceed the preset range, the sensor 12 emits an alarm signal; the sealing ring assembly consists of upper and lower sealing rings 9 and a metal skeleton 21, forming the sealing defense line of the wheel hub unit. The end cover 1 is designed to enclose the wheel hub unit and is provided with a sound insulation layer 18 and a shock-absorbing cushion 19 inside. The sound insulation layer 18 absorbs and isolates the driving noise, and the shock-absorbing cushion 19 alleviates the vibration and impact caused by road unevenness.

[0027] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A high-strength automobile hub unit for a large wheel hub, comprising a hub body (23), characterized in that: The hub body (23) is made of 35CrMo alloy steel. The hub body (23) includes a flange (10). A first mounting hole integrated with the flange (10) is provided on one side of the flange (10), and a second mounting hole is provided on the other side. An inner ring member (24) nested with the flange (10) is provided on the flange (10). An outer ring member (8) is provided outside the inner ring and spaced from the flange (10). There is a gap between the outer ring member (8) and the inner ring member (24), as well as a gap between the outer ring member (8) and the inner ring member (24). A retaining frame (4) is provided between the outer ring member (8) and the flange (10), and a plurality of rollers (3) are provided in the retaining frame (4) and are nested and connected to the retaining frame (4). A sensor (12) is connected to one side of the center of the outer ring member (8), and a gap is provided at the connection between the inner ring member (24) and the outer ring member (8), and an upper sealing ring (2) component is provided in the gap. An end cover (1) is provided on one side of the outer ring member (8), and a lower sealing ring (9) is provided in the gap at the junction of the flange (10) and the outer ring.

2. A high-strength automobile hub unit for large wheels according to claim 1, characterized in that: The inner wall of the end cover (1) is covered with a sound insulation layer (18), and a shock-absorbing cushion (19) is provided at the connection between the end cover (1) and the edge of the outer ring member (8).

3. The high-strength automobile wheel hub unit for large wheels according to claim 1, characterized in that: The inner ring member (24) comprises a wide inner ring (5), a narrow inner ring (7) is provided on one side of the wide inner ring (5), the wide inner ring (5) and the narrow inner ring are in contact with each other, and a gear ring (6) is provided on the outer side of the wide inner ring (5).

4. A high-strength automobile hub unit for large wheels according to claim 3, characterized in that: The sensor (12) comprises a polar axis (13), one end of the polar axis (13) is associated with the gear ring (6), and the other end is connected to an induction coil (14), one side of the induction coil (14) is provided with a permanent magnet (15), one side of the permanent magnet (15) is connected to a cable (17), and a housing (16) is installed on the outside of the polar axis (13), the induction coil (14) and the permanent magnet (15).

5. The high-strength automobile wheel hub unit for large wheels according to claim 1, characterized in that: The upper sealing ring assembly comprises a first sealing ring (20), one end of the upper sealing ring (2) is connected to a metal frame (21), and the other end of the metal frame (21) is connected to a second sealing ring (22).

6. The high-strength automobile hub unit for large wheels according to claim 1, characterized in that: Both ends of the bottom of the flange (10) are provided with fixing bolts (11), and the number of the fixing bolts (11) is 2 and they are arranged correspondingly.

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