A double-locked hub bearing unit and vehicle

Abstract

The utility model discloses a kind of end face riveting double locking's wheel hub bearing unit and vehicle, wheel hub bearing unit includes: inner flange, outer flange, ball and ball cage, outer flange is set in inner flange outside;Ball is kept on ball cage, ball and ball cage are located between inner flange and outer flange;Inner flange is formed with through hole axially, and the end face of inner flange one end is continuous plane;Universal joint housing, universal joint housing includes bell housing and shaft, shaft is passed through through hole and is engaged with through hole by spline, and shaft one end riveting buckling is in inner flange one end;Bell housing is formed in the other end of shaft, and is pressed to the other end of inner flange.The shaft one end riveting buckling is in the end face of inner flange one end, increase the operating space of riveting tool, avoid riveting tool and inner flange to generate interference, improve the flexibility of riveting tool;Shaft and through hole spline engagement, further improve the connection strength of shaft and inner flange and the reliability and stability of torque transmission.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a wheel hub bearing unit with end face riveting and double locking, and a vehicle thereof. Background Technology

[0002] Wheel hub bearings are critical safety components connecting the wheel and steering knuckle, and their performance directly affects vehicle driving safety and reliability. Currently, third-generation wheel hub bearing units generally use bolted connections to fix the universal joint shaft to the bearing inner flange, with another component at the outer end of the universal joint serving as its bearing inner ring. Fourth-generation wheel hub bearings use riveting to replace bolted connections, integrating the bearing inner ring and universal joint into a single universal joint that acts as the bearing inner ring. Typically, the end of the shaft is riveted at the concave step of the inner flange to form an axial lock. This riveting locking method is prone to interference between the riveting tool and the side wall of the inner flange during riveting, leading to cracking or damage to the inner flange. It also has high processing requirements and difficulty, and is not conducive to ensuring the service life of the inner flange. Utility Model Content

[0003] One of the objectives of this invention is to provide a wheel hub bearing unit and vehicle with double locking end face riveting, in order to solve the problem in the prior art where the riveting tool and the side wall of the inner flange are prone to interference during riveting.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wheel hub bearing unit with end face riveting and double locking includes: an inner flange, an outer flange, balls, and a ball cage. The outer flange is sleeved outside the inner flange. The balls are held on the ball cage, and the balls and the ball cage are located between the inner flange and the outer flange to allow the inner flange and the outer flange to rotate relative to each other. The inner flange has an axially formed through hole, and one end face of the inner flange is a continuous plane. A universal joint housing includes a bell-shaped shell and a shaft. The shaft passes through the through hole and engages with the through hole via a spline. One end of the shaft is riveted and pressed against one end of the inner flange. The bell-shaped shell is formed at the other end of the shaft and abuts against the other end of the inner flange.

[0005] Based on the above technical means, the end face of one end of the inner flange is designed as a continuous plane, and one end of the shaft is riveted and pressed against the end face of the inner flange. This increases the operating space of the riveting tool when riveting one end of the shaft, avoids interference between the riveting tool and the inner flange and damage to the inner flange, and improves the flexibility of the riveting tool. The engagement of the shaft with the through-hole spline further improves the connection strength between the shaft and the inner flange and the reliability and stability of torque transmission.

[0006] Furthermore, the inner flange includes a first flange ring and a second flange ring, the second flange ring being formed on the outer side wall of the first flange ring; one end of the shaft is screw-riveted and pressed onto the first flange ring; the second flange ring is used to connect to the vehicle brake disc.

[0007] Furthermore, the shaft is riveted and pressed against one end of the first flange ring to form a locking buckle, so that the shaft is securely installed in the through hole.

[0008] According to the above-mentioned technical means, the locking buckle formed by the outward flip can cooperate with the bell-shaped shell pressing against the other end of the inner flange to firmly install the axle on the inner flange, preventing the axle from coming loose from the inner flange due to vibration and impact during vehicle operation, thus ensuring the stability and reliability of the connection between the axle and the inner flange.

[0009] Furthermore, bolt holes are formed on the second flange ring for connecting the second flange ring to the brake disc using mounting bolts.

[0010] Based on the above technical means, the mutual cooperation between the mounting bolts and bolt holes can firmly connect the second flange ring and the brake disc, and the connection method is simple and effective, convenient to operate, and has high production efficiency.

[0011] Furthermore, the second flange ring has six bolt holes, which are evenly distributed on the second flange ring in a circular pattern.

[0012] Based on the above technical means, the six evenly spaced bolt holes ensure that the mounting bolts used in conjunction with each bolt hole are subjected to uniform force, which can ensure the balance and stability of torque transmission between the inner flange and the brake disc during use.

[0013] Furthermore, a locating pin hole is formed on the second flange ring for positioning when the second flange ring is connected to the brake disc by a locating screw.

[0014] Based on the above technical means, the positioning pin hole and the positioning screw cooperate to form a rigid positioning for the connection between the second flange ring and the brake disc, which makes it easier for production personnel to connect the second flange ring and the brake disc with the mounting bolts, thereby improving the assembly accuracy and assembly efficiency.

[0015] Furthermore, the outer wall of the bell-shaped shell is formed with a raceway, which is in rolling engagement with the ball.

[0016] Based on the above technical means, the raceway provides a rolling path for the balls, confining the rolling of the balls within the raceway, thus ensuring the coaxiality and stability of the outer flange relative to the bell-shaped shell and the inner flange when they rotate.

[0017] Furthermore, it also includes a gear ring, which is detachably mounted on the outer wall of the bell-shaped housing.

[0018] Based on the above technical means, the detachable gear ring can reduce the maintenance cost of the gear ring. When the gear ring needs maintenance or replacement, it can be maintained or replaced by simply removing the gear ring separately, making the maintenance of the gear ring simple, convenient and quick.

[0019] Furthermore, it also includes a sealing ring, which is installed between the outer flange and the universal joint housing.

[0020] Based on the above technical means, the sealing ring can prevent internal lubricating media such as lubricating oil and grease from leaking from the gap between the outer flange and the universal joint housing, ensuring the lubrication effect between the outer flange and the universal joint, and avoiding wear caused by insufficient lubrication. The sealing ring can also prevent external impurities, such as dust, mud, and moisture, from entering between the outer flange and the universal joint housing, reducing the risk of failure.

[0021] This utility model also provides a vehicle, including a steering knuckle and a wheel, and further including a wheel hub bearing unit with end face riveting double locking as described in any one of the above, wherein the wheel hub bearing unit with end face riveting double locking is used to connect the steering knuckle and the wheel.

[0022] The beneficial effects of this utility model are as follows: The end face of one end of the inner flange is designed as a continuous plane, and one end of the shaft is riveted and pressed against the end face of the inner flange. This increases the operating space of the riveting tool when riveting the shaft end, avoids interference between the riveting tool and the inner flange and damage to the inner flange, and improves the flexibility of the riveting tool. The engagement of the shaft with the through-hole spline further improves the connection strength between the shaft and the inner flange and the reliability and stability of torque transmission. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the concealed outer flange of this utility model; Figure 5 This is one of the structural schematic diagrams of the concealed outer flange and ball bearings of this utility model; Figure 6 This is the second schematic diagram of the structure of the concealed outer flange and ball bearings of this utility model; Figure 7 This is a schematic diagram of the structure of the inner flange of this utility model.

[0025] in, 100. Inner flange; 110. Through hole; 120. First flange ring; 130. Second flange ring; 131. Bolt hole; 132. Locating pin hole; 200. Outer flange; 300. Ball bearing; 400. Ball bearing cage; 500. Universal joint housing; 510. Bell-shaped housing; 511. Raceway; 520. Shaft; 521. Locking buckle; 600. Gear ring; 700. Sealing ring. Detailed Implementation

[0026] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. The drawings are for illustrative purposes only and should not be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] This embodiment provides, as follows: Figures 1 to 7The wheel hub bearing unit with end face riveting and double locking, shown, includes: an inner flange 100, an outer flange 200, balls 300, and a ball cage. The outer flange 200 is sleeved outside the inner flange 100. The balls 300 are held on the ball cage, and the balls 300 and the ball cage are located between the inner flange 100 and the outer flange 200 so that the inner flange 100 and the outer flange 200 can rotate relative to each other. The inner flange 100 has an axially formed through hole 110, and the end face of one end of the inner flange 100 is a continuous plane. A universal joint housing 500 includes a bell-shaped shell 510 and a shaft 520. The shaft 520 passes through the through hole 110 and engages with the through hole 110 through a spline. One end of the shaft 520 is riveted and pressed against one end of the inner flange 100. The bell-shaped shell 510 is formed at the other end of the shaft 520 and presses against the other end of the inner flange 100.

[0029] When assembling the wheel hub bearing unit in this embodiment, after assembling the inner flange 100, outer flange 200, ball retainer, and balls 300, the shaft 520 of the universal joint housing 500 passes through the through hole 110 on the inner flange 100. After the bell-shaped shell 510 abuts against the inner flange 100, the end of the shaft 520 away from the bell-shaped shell 510 is riveted and pressed onto the inner flange 100 using a riveting tool to complete the assembly of the wheel hub bearing unit in this embodiment. Since the end of the inner flange 100 and the shaft 520 riveted together in the wheel hub bearing unit of this embodiment is a continuous plane, the size requirements for the riveting tool are low, and various specifications of riveting tools are applicable, improving the versatility of the wheel hub bearing unit assembly.

[0030] The end face of one end of the inner flange 100 is designed as a continuous plane, and one end of the shaft 520 is riveted and pressed against the end face of the inner flange 100. This increases the operating space of the riveting tool when riveting one end of the shaft 520, avoids interference between the riveting tool and the inner flange 100 and damage to the inner flange 100, and improves the flexibility of the riveting tool. The shaft 520 engages with the spline of the through hole 110 (in actual application, the outer side wall of the shaft 520 has an external spline, and the inner side wall of the through hole 110 has an internal spline, and the internal spline and the external spline can engage with each other), which further improves the connection strength of the shaft 520 and the inner flange 100 and the reliability and stability of torque transmission.

[0031] In this embodiment, the bell-shaped shell 510 and the shaft 520 are integrally forged, which reduces the number of parts during assembly and simplifies the assembly steps and processes of the wheel hub bearing unit.

[0032] like Figure 1 and Figure 3As shown, in this embodiment, the inner flange 100 includes a first flange ring 120 and a second flange ring 130, with the second flange ring 130 formed on the outer side wall of the first flange ring 120; one end of the shaft 520 is riveted and pressed onto the first flange ring 120; the second flange ring 130 is used to connect to the vehicle brake disc.

[0033] like Figure 1 and Figure 3 As shown, in this embodiment, the end of the shaft 520 that is riveted and pressed against the first flange ring 120 is turned outward to form a locking buckle 521, so that the shaft 520 is securely installed in the through hole 110. The outwardly turned locking buckle 521 can cooperate with the bell-shaped shell 510 that abuts against the other end of the inner flange 100, forming a constraint at both ends of the shaft 520, which can firmly install the shaft 520 on the inner flange 100, preventing the shaft 520 from coming loose from the inner flange 100 due to vibration and impact during vehicle operation, and ensuring the stability and reliability of the connection between the shaft 520 and the inner flange 100.

[0034] like Figure 7 As shown, in this embodiment, bolt holes 131 are formed on the second flange ring 130 for connecting the second flange ring 130 to the brake disc using mounting bolts. The cooperation between the mounting bolts and the bolt holes 131 can securely connect the second flange ring 130 to the brake disc, and the connection method is simple, effective, convenient to operate, and has high production efficiency.

[0035] like Figure 7 As shown, in this embodiment, six bolt holes 131 are formed on the second flange ring 130. The six bolt holes 131 are evenly distributed on the second flange ring 130 and are arranged in a circular pattern. Existing wheel hub bearing structures generally use 12 mounting bolts to connect the flange and the brake disc. This embodiment uses six evenly distributed bolt holes 131 to cooperate with the mounting bolts. This not only ensures that the mounting bolts used with each bolt hole 131 are subjected to uniform force (equal distribution ensures that the included angle of the force vectors of each bolt is equal, ensuring torque balance), but also ensures the balance and stability of torque transmission between the inner flange 100 and the brake disc during use. Furthermore, it reduces the number of bolts, further reducing assembly weight and simplifying the assembly process while maintaining the connection strength between the inner flange 100 and the brake disc.

[0036] like Figure 7 As shown, in this embodiment, a locating pin hole 132 is also formed on the second flange ring 130 for positioning when the second flange ring 130 is connected to the brake disc by a locating screw. The locating pin hole 132 cooperates with the locating screw to form a rigid positioning for the connection between the second flange ring 130 and the brake disc, which facilitates the subsequent connection of the second flange ring 130 to the brake disc by production personnel using mounting bolts, improves assembly accuracy and efficiency, and ensures quick and convenient assembly of the mounting bolts.

[0037] In this embodiment, two locating pin holes 132 are formed on the second flange ring 130, and as shown... Figure 7 As shown, the two locating pin holes 132 are symmetrically distributed with respect to the diameter direction of the second flange ring 130. This arrangement can provide two-point positioning when connecting the second flange ring 130 to the brake disc, preventing relative displacement between the two when the second flange ring 130 is fixed to the brake disc with mounting bolts.

[0038] like Figure 5 As shown, in this embodiment, a raceway 511 is formed on the outer wall of the bell-shaped shell 510, and the raceway 511 rolls with the ball 300. The raceway 511 provides a rolling path for the ball 300, confining the rolling of the ball 300 within the raceway 511, thus ensuring the coaxiality and stability of the outer flange 200 when rotating relative to the bell-shaped shell 510 and the inner flange 100.

[0039] like Figure 4 As shown, in this embodiment, two rows of ball bearings 300 are provided between the inner flange 100 and the outer flange 200, such as... Figure 3 As shown in the cross-sectional view, specifically, since the outer flange 200 is not strictly aligned at the ends with the inner flange 100, the two rows of balls 300 are located between the outer flange 200 and the bell-shaped shell 510, and between the outer flange 200 and the inner flange 100, respectively. Correspondingly, two ball retainers are also provided to hold the positions of the two rows of balls 300; furthermore, the outer walls of the bell-shaped shell 510 and the inner flange 100 respectively form raceways 511 for the two rows of balls 300 to roll (e.g., ...). Figure 5 and Figure 6 As shown), each raceway 511 is adapted to the shape of the ball 300; of course, the shape of one side wall of the outer flange 200 relative to the inner flange 100 is also adapted to the two rows of ball 300.

[0040] like Figures 1 to 3 As shown, this embodiment also includes a gear ring 600 (i.e., an electromagnetic coil), which is detachably mounted on the outer side wall of the bell-shaped housing 510. The detachable gear ring 600 reduces the maintenance cost of the gear ring 600. When the gear ring 600 needs maintenance or replacement, it can be maintained or replaced by simply removing the gear ring 600, making the maintenance of the gear ring 600 simple, convenient, and quick.

[0041] like Figure 3 and Figure 4 As shown, this embodiment also includes a sealing ring 700, which is installed between the outer flange 200 and the universal joint housing 500. Specifically, as... Figure 3 and Figure 4As shown, sealing rings 700 are provided at both ends of the outer flange 200. The shapes of the two sealing rings 700 are adapted to the shapes of the two ends of the outer flange 200 to seal the area covered by the outer flange 200. The sealing rings 700 can prevent internal lubricating media such as lubricating oil and grease from leaking from the gap between the outer flange 200 and the universal joint housing 500, ensuring the lubrication effect between the outer flange 200 and the universal joint (i.e., ensuring that the two rows of balls 300 can roll smoothly), and avoiding wear due to insufficient lubrication. The sealing rings 700 can also prevent external impurities, such as dust, mud, and moisture, from entering between the outer flange 200 and the universal joint housing 500, reducing the risk of failure.

[0042] This embodiment also provides a vehicle, including a steering knuckle and a wheel, and further including a wheel hub bearing unit with end face riveting and double locking as described in any of the above embodiments. The wheel hub bearing unit with end face riveting and double locking is used to connect the steering knuckle and the wheel, ensuring the smoothness and reliability of load transmission between the steering knuckle and the wheel.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wheel hub bearing unit with end face riveting and double locking, characterized in that, include: The system comprises an inner flange (100), an outer flange (200), balls (300), and a ball retainer (400), wherein the outer flange (200) is fitted over the inner flange (100); the balls (300) are held on the ball retainer (400), and the balls (300) and the ball retainer (400) are located between the inner flange (100) and the outer flange (200) so that the inner flange (100) and the outer flange (200) can rotate relative to each other; the inner flange (100) has an axially formed through hole (110), and one end face of the inner flange (100) is a continuous plane; Universal joint housing (500), the universal joint housing (500) includes a bell-shaped shell (510) and a shaft (520), the shaft (520) passes through the through hole (110) and engages with the through hole (110) by a spline, and one end of the shaft (520) is riveted and pressed against one end of the inner flange (100); the bell-shaped shell (510) is formed at the other end of the shaft (520) and abuts against the other end of the inner flange (100).

2. The wheel hub bearing unit with end face riveting and double locking according to claim 1, characterized in that, The inner flange (100) includes a first flange ring (120) and a second flange ring (130), the second flange ring (130) being formed on the outer side wall of the first flange ring (120); one end of the shaft (520) is riveted and pressed onto the first flange ring (120); the second flange ring (130) is used to connect the vehicle brake disc.

3. A wheel hub bearing unit with end face riveting and double locking according to claim 2, characterized in that, The shaft (520) is riveted and pressed against one end of the first flange ring (120) to form a locking buckle (521), so that the shaft (520) is securely installed in the through hole (110).

4. A wheel hub bearing unit with end face riveting and double locking according to claim 2, characterized in that, The second flange (130) has bolt holes (131) for connecting the second flange (130) to the brake disc by mounting bolts.

5. A wheel hub bearing unit with end face riveting and double locking according to claim 4, characterized in that, The second flange (130) has 6 bolt holes (131) formed thereon. The 6 bolt holes (131) are evenly distributed on the second flange (130) and are arranged in a circular pattern.

6. A wheel hub bearing unit with end face riveting and double locking according to claim 4, characterized in that, The second flange (130) also has a locating pin hole (132) for positioning when the second flange (130) is connected to the brake disc by a locating screw.

7. A wheel hub bearing unit with end face riveting and double locking according to claim 1, characterized in that, The outer wall of the bell-shaped shell (510) is formed with a raceway (511), which is in rolling engagement with the ball (300).

8. A wheel hub bearing unit with end face riveting and double locking according to claim 1, characterized in that, It also includes a gear ring (600) which is detachably mounted on the outer wall of the bell-shaped housing (510).

9. A wheel hub bearing unit with end face riveting and double locking according to claim 1, characterized in that, It also includes a sealing ring (700) installed between the outer flange (200) and the universal joint housing (500).

10. A vehicle comprising a steering knuckle and a wheel, characterized in that, It also includes a wheel hub bearing unit with end face riveting double locking as described in any one of claims 1-9, the wheel hub bearing unit with end face riveting double locking being used to connect the steering knuckle and the wheel.

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