Rear axle assembly and vehicle

Abstract

The utility model discloses a rear axle assembly and a vehicle, and the rear axle assembly comprises a steering knuckle which is provided with a via hole; the hub bearing is arranged in the via hole; the brake caliper is arranged on the steering knuckle; the wheel speed sensor is arranged on the steering knuckle; and the shock absorber mounting structure is arranged on the steering knuckle, and the brake caliper, the wheel speed sensor and the shock absorber mounting structure are arranged on the periphery of the via hole at intervals. Therefore, the mounting structures of the steering knuckle, the hub bearing, the brake caliper, the wheel speed sensor and the shock absorber can be integrated into a whole, so that the structure is more compact, and a rear axle assembly can be fixedly mounted conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a rear axle assembly and a vehicle. Background Art

[0002] In the prior art, the use of a bent tube beam rear axle solves the rear axle motor layout problem, but the rear axle power cannot be transmitted by the rear axle half shaft, and an independent drive shaft assembly needs to be installed for power transmission. However, since the existing rear axle assembly cannot meet the existing layout requirements, there is a problem of small space and inability to arrange. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a rear axle assembly, which can integrate a steering knuckle, a wheel hub bearing, a brake caliper, a wheel speed sensor and a shock absorber mounting structure into a whole, which can not only make the structure more compact, but also facilitate the fixed installation of the rear axle assembly.

[0004] The utility model further provides a vehicle.

[0005] The rear axle assembly according to the first aspect of the utility model includes: a steering knuckle, the steering knuckle is provided with a through hole; a wheel hub bearing, the wheel hub bearing is arranged in the through hole; a brake caliper, the brake caliper is arranged on the steering knuckle; a wheel speed sensor, the wheel speed sensor is arranged on the steering knuckle; a shock absorber mounting structure, the shock absorber mounting structure is arranged on the steering knuckle, and the brake caliper, the wheel speed sensor and the shock absorber mounting structure are arranged at intervals on the outer periphery of the through hole.

[0006] Thus, the rear axle assembly can integrate the steering knuckle, wheel hub bearing, brake caliper, wheel speed sensor and shock absorber mounting structure into a whole, which not only makes its structure more compact but also facilitates the fixed installation of the rear axle assembly.

[0007] According to some embodiments of the utility model, the steering knuckle is provided with a mounting hole, and the mounting hole is spaced apart from the through hole; the rear axle assembly also includes: a bent tube beam, an end of which extends into the mounting hole and is connected to the steering knuckle.

[0008] According to some embodiments of the utility model, a positioning ring is provided on the side of the steering knuckle facing the bent tube beam, the positioning ring is arranged around the mounting hole, and the bent tube beam is welded to the positioning ring.

[0009] According to some embodiments of the present invention, the through hole is provided with a drainage hole or a sewage groove below the wheel hub bearing.

[0010] According to some embodiments of the present invention, a dustproof structure is provided at one end of the through hole away from the hub bearing, and the dustproof structure protrudes toward the center of the through hole.

[0011] According to some embodiments of the utility model, the steering knuckle includes: a mounting body, the mounting body is provided with the through hole; a shock absorber connecting arm, the shock absorber connecting arm is connected to the mounting body and is located below the through hole, and the shock absorber mounting structure is connected to one end of the shock absorber connecting arm away from the mounting body.

[0012] According to some embodiments of the utility model, the shock absorber connecting arm is provided with a reinforcing rib, and the reinforcing rib extends from the one end of the shock absorber connecting arm to the other end of the shock absorber connecting arm connected to the mounting body.

[0013] According to some embodiments of the utility model, a fixing hole is provided at one end of the shock absorber connecting arm away from the mounting body; the shock absorber mounting structure comprises: a rod body and a positioning boss, the positioning boss is arranged on the outer periphery of the rod body, the rod body comprises a first rod segment and a second rod segment located on both sides of the positioning boss, the first rod segment extends into the fixing hole and is connected to the shock absorber connecting arm, the first rod segment has at least two cylindrical segments, and the cross-sectional areas of at least two of the cylindrical segments increase gradually in the direction approaching the second rod segment, and the second rod segment is used to cooperate with the shock absorber and is provided with an internal thread.

[0014] According to some embodiments of the present invention, the steering knuckle is provided with at least two connection holes above the through hole, and the brake caliper is connected to the at least two connection holes in a one-to-one correspondence via at least two fasteners.

[0015] A vehicle according to an embodiment of the second aspect of the utility model includes: the above-mentioned rear axle assembly.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a structural schematic diagram of a rear axle assembly according to an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a steering knuckle including a shock absorber connecting arm according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a structure including a drainage hole below the via hole according to an embodiment of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the dustproof structure on the steering knuckle according to an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of a shock absorber mounting structure according to an embodiment of the utility model, through which a shock absorber connecting arm is installed;

[0023] Figure 6 It is a schematic diagram of the structure of a steering knuckle with a brake caliper according to an embodiment of the utility model;

[0024] Figure 7 It is a structural schematic diagram of a bent tube beam according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Rear axle assembly;

[0027] 10. Steering knuckle; 11. Through hole; 111. Drain hole; 12. Mounting hole; 13. Positioning ring; 14. Dustproof structure; 15. Connection hole;

[0028] 20. Wheel hub bearing; 30. Brake caliper;

[0029] 40. shock absorber mounting structure; 41. rod body; 411. first rod section; 412. second rod section; 413. cylindrical section; 414. internal thread;

[0030] 50. Positioning boss;

[0031] 60. Bent tube beam;

[0032] 70. Install the main body;

[0033] 80. shock absorber connecting arm; 81. reinforcing rib; 82. fixing hole;

[0034] 90. Shock absorber; 91. Drive shaft. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0036] Reference below Figure 1-Figure 7 A rear axle assembly 100 according to an embodiment of the present invention is described.

[0037] like Figure 1 and Figure 2As shown, the rear axle assembly 100 according to the first embodiment of the utility model includes: a steering knuckle 10, a wheel hub bearing 20, a brake caliper 30, a wheel speed sensor and a shock absorber mounting structure 40, the steering knuckle 10 is provided with a through hole 11, the wheel hub bearing 20 is arranged in the through hole 11, the brake caliper 30 is arranged on the steering knuckle 10, the wheel speed sensor is arranged on the steering knuckle 10, and the shock absorber mounting structure 40 is arranged on the steering knuckle 10, and the brake caliper 30, the wheel speed sensor and the shock absorber mounting structure 40 are arranged at intervals on the outer periphery of the through hole 11.

[0038] Specifically, in the development of traditional new energy vehicles, during the transformation process, the use of a bent-tube beam rear axle solves the layout problem of the rear axle motor, but the rear axle power cannot be transmitted using the rear axle half-axle, and an independent drive shaft assembly needs to be installed for power transmission. Therefore, the rear axle assembly needs to be connected to the bent-tube beam, drive shaft assembly and other parts in the rear axle, but since the traditional rear axle assembly cannot meet the existing layout requirements, the rear axle assembly needs to be optimized.

[0039] The rear axle assembly 100 is mainly composed of a steering knuckle 10, a wheel hub bearing 20, a brake caliper 30, a wheel speed sensor and a shock absorber mounting structure 40. The setting of the through hole 11 in the steering knuckle 10 can facilitate the insertion of the wheel hub bearing 20. The steering knuckle 10 can provide a mounting position for the wheel hub bearing 20, thereby facilitating the connection and fixation of the wheel hub bearing 20.

[0040] In addition, the wheel speed sensor, the brake caliper 30 and the shock absorber mounting structure 40 are all arranged on the steering knuckle 10, so that the wheel speed sensor, the brake caliper 30 and the shock absorber mounting structure 40 can be integrated on the steering knuckle 10, and the brake caliper 30, the wheel speed sensor, and the shock absorber mounting structure 40 are arranged at intervals, so that interference between the brake caliper 30, the wheel speed sensor, and the shock absorber mounting structure 40 can be avoided.

[0041] Thus, the rear axle assembly 100 can integrate the steering knuckle 10, the wheel hub bearing 20, the brake caliper 30, the wheel speed sensor and the shock absorber mounting structure 40 into a whole, which can not only make its structure more compact but also facilitate the fixed installation of the rear axle assembly 100.

[0042] According to some embodiments of the present invention, Figure 2 As shown, the steering knuckle 10 is provided with a mounting hole 12 , and the mounting hole 12 is spaced apart from the through hole 11 . The rear axle assembly 100 further includes: a bent tube beam 60 , an end of which extends into the mounting hole 12 , and the bent tube beam 60 is connected to the steering knuckle 10 .

[0043] The installation hole 12 on the steering knuckle 10 can facilitate the insertion and installation of the end of the bent tube beam 60 , thereby achieving a fixed connection between the bent tube beam 60 and the steering knuckle 10 .

[0044] According to some embodiments of the present invention, Figure 2 As shown, a positioning ring 13 is provided on the side of the steering knuckle 10 facing the bent tube beam 60 . The positioning ring 13 is arranged around the mounting hole 12 , and the bent tube beam 60 is welded to the positioning ring 13 .

[0045] Among them, the positioning ring 13 is protruding toward the end of the curved tube beam 60. The positioning ring 13 can not only position and install the curved tube beam 60, but also increase the contact area between the positioning ring 13 and the end of the curved tube beam 60, thereby reducing the force on the positioning ring 13 and the end of the curved tube beam 60. The positioning ring 13 is arranged around the mounting hole 12, which can facilitate the positioning and installation of the end of the curved tube beam 60. Moreover, the positioning ring 13 is welded to the curved tube beam 60, so that the connection between the positioning ring 13 and the curved tube beam 60 can be more stable and firm.

[0046] According to some embodiments of the present invention, Figure 3 As shown, the through hole 11 is provided with a drainage hole 111 or a drainage groove below the wheel hub bearing 20 .

[0047] The through hole 11 is provided with a drainage hole 111 or a drainage groove below the wheel hub bearing 20 . The drainage hole 111 is extended outward to drain water outward, thereby effectively preventing muddy water from accumulating in the wheel hub bearing 20 .

[0048] In addition, the drainage hole 111 and the axis of the through hole 11 have an angle, and the angle is set to 45° or 30°, which can accelerate the speed of muddy water discharge and effectively avoid the accumulation of muddy water in the wheel hub bearing 20.

[0049] When the through hole 11 is provided with a drainage groove below the wheel hub bearing 20 , the groove bottom of the drainage groove and the axis of the through hole 11 have an angle of 45° or 30°, thereby effectively avoiding the accumulation of muddy water in the wheel hub bearing 20 .

[0050] According to some embodiments of the present invention, Figure 4 As shown, a dustproof structure 14 is provided at one end of the through hole 11 away from the hub bearing 20 , and the dustproof structure 14 protrudes toward the center of the through hole 11 .

[0051] The dustproof structure 14 is an L-shaped structure, or a labyrinth structure composed of multiple L-shaped structures. When the drive shaft 91 passes through the through hole 11, in order to avoid interference between the drive shaft 91 and the dustproof structure 14, the portion of the drive shaft 91 corresponding to the dustproof structure 14 is provided with an L-shaped or labyrinth groove, thereby preventing the entry of mud and sand.

[0052] According to some embodiments of the present invention, Figure 2As shown, the steering knuckle 10 includes: a mounting body 70 and a shock absorber connecting arm 80, the mounting body 70 is provided with a through hole 11, the shock absorber connecting arm 80 is connected to the mounting body 70, and the shock absorber connecting arm 80 is located below the through hole 11, and the shock absorber mounting structure 40 is connected to the end of the shock absorber connecting arm 80 away from the mounting body 70.

[0053] The shock absorber connecting arm 80 is connected to the mounting body 70 , so that the shock absorber connecting arm 80 can be arranged using the space of the steering knuckle 10 , thereby making its structure more compact.

[0054] The shock absorber connecting arm 80 is bent and connected below the through hole 11, which can facilitate the connection between the shock absorber connecting arm 80 and the shock absorber 90. The shock absorber connecting arm 80 is used to install the shock absorber 90. In this way, the mounting bracket on the bent tube beam 60 can be omitted, and space can be saved for the installation of other brackets, thereby achieving the purpose of reducing the weight of the bent tube beam 60.

[0055] According to some embodiments of the present invention, Figure 2 As shown, the shock absorber connecting arm 80 is provided with a reinforcing rib 81 , and the reinforcing rib 81 extends from one end of the shock absorber connecting arm 80 to the other end of the shock absorber connecting arm 80 connected to the mounting body 70 .

[0056] Among them, the shock absorber connecting arm 80 is provided with a reinforcing rib 81, which can strengthen the structural strength of the shock absorber connecting arm 80 and enhance its performance. Moreover, the reinforcing rib 81 extends from one end of the shock absorber connecting arm 80 close to the shock absorber 90 to the other end of the shock absorber connecting arm 80 connected to the installation body 70, thereby ensuring the connection strength between the shock absorber connecting arm 80 and the installation body 70.

[0057] According to the specific embodiment of the utility model, Figure 2 As shown, a fixing hole 82 is provided at one end of the shock absorber connecting arm 80 away from the mounting body 70, and the shock absorber mounting structure 40 includes: a rod body 41 and a positioning boss 50, the positioning boss 50 is arranged on the outer periphery of the rod body 41, the rod body 41 includes a first rod segment 411 and a second rod segment 412 located on both sides of the positioning boss 50, the first rod segment 411 extends into the fixing hole 82, and the first rod segment 411 is connected to the shock absorber connecting arm 80, the first rod segment 411 has at least two cylindrical segments 413, and the cross-sectional areas of the at least two cylindrical segments 413 increase in the direction close to the second rod segment 412, the second rod segment 412 is used to cooperate with the shock absorber 90, and the second rod segment 412 is provided with an internal thread 414.

[0058] Specifically, a fixing hole 82 is provided at one end of the shock absorber connecting arm 80 away from the mounting body 70, which can facilitate the fixed connection of the shock absorber mounting structure 40. The shock absorber mounting structure 40 is mainly composed of a rod body 41 and a positioning boss 50, and the positioning boss 50 is located between the steering knuckle 10 and the shock absorber 90. In this way, the two sides of the positioning boss 50 can respectively position the steering knuckle 10 and the shock absorber 90, so that the steering knuckle 10 and the shock absorber 90 can be positioned and installed.

[0059] Furthermore, the rod body 41 is mainly composed of a first rod segment 411 and a second rod segment 412, wherein the first rod segment 411 is located on one side of the positioning boss 50, and the second rod segment 412 is located on the other side of the positioning boss 50. The first rod segment 411 has at least two cylindrical segments 413, that is, at least two cylindrical segments 413 can form a stepped structure, and the cross-sectional area of ​​the first rod segment 411 gradually increases in the direction close to the second rod segment 412, so that the first rod segment 411 can not only play a guiding role in the process of extending into the fixing hole 82, but also make the first rod segment 411 and the fixing hole 82 fit more tightly and firmly.

[0060] In addition, the shock absorber 90 is provided with a through hole at the connection with the second rod segment 412, which can facilitate the insertion of the second rod segment 412. Furthermore, the interior of the second rod segment 412 is provided with an internal thread 414, which can facilitate the locking and fixing of the bolts. Moreover, a gasket is provided between the bolts and the second rod segment 412, thereby further ensuring the stability of the connection between the second rod segment 412 and the shock absorber 90.

[0061] According to some embodiments of the present invention, Figure 2 As shown, the steering knuckle 10 is provided with at least two connection holes 15 above the through hole 11 , and the brake caliper 30 is connected to the at least two connection holes 15 in a one-to-one correspondence through at least two fasteners.

[0062] in,

[0063] At least two front-to-back spaced connection holes 15 are arranged above the through hole 11, which can ensure that the brake caliper 30 is more firmly connected to the through hole 11. Moreover, the brake caliper 30 is connected through at least two connection holes 15, thereby ensuring the stability and reliability of the brake.

[0064] A vehicle according to an embodiment of the second aspect of the utility model comprises: the rear axle assembly 100 of the above embodiment.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rear axle assembly, characterized in that: include: A steering knuckle, wherein the steering knuckle is provided with a through hole; A wheel hub bearing, wherein the wheel hub bearing is arranged in the through hole; a brake caliper, the brake caliper being arranged on the steering knuckle; A wheel speed sensor, wherein the wheel speed sensor is arranged on the steering knuckle; A shock absorber mounting structure, wherein the shock absorber mounting structure is arranged on the steering knuckle, and the brake caliper, the wheel speed sensor and the shock absorber mounting structure are arranged at intervals on the outer periphery of the through hole; A dustproof structure is arranged at one end of the through hole away from the hub bearing, and the dustproof structure protrudes toward the center of the through hole.

2. The rear axle assembly according to claim 1, characterized in that: The steering knuckle is provided with a mounting hole, and the mounting hole is spaced apart from the through hole; The rear axle assembly further comprises: A bent tube beam, the end of which extends into the mounting hole and is connected to the steering knuckle.

3. The rear axle assembly according to claim 2, characterized in that: A positioning ring is arranged on one side of the steering knuckle facing the bent tube beam. The positioning ring is arranged around the mounting hole, and the bent tube beam is connected to the positioning ring by welding.

4. The rear axle assembly according to claim 1, characterized in that: The through hole is provided with a drainage hole or a sewage groove below the wheel hub bearing.

5. The rear axle assembly according to claim 1, characterized in that: The steering knuckle comprises: An installation body, wherein the installation body is provided with the through hole; A shock absorber connecting arm is connected to the mounting body and is located below the through hole, and the shock absorber mounting structure is connected to an end of the shock absorber connecting arm away from the mounting body.

6. The rear axle assembly according to claim 5, characterized in that: The shock absorber connecting arm is provided with a reinforcing rib, and the reinforcing rib extends from the one end of the shock absorber connecting arm to the other end of the shock absorber connecting arm connected to the mounting body.

7. The rear axle assembly according to claim 5, characterized in that: A fixing hole is provided at one end of the shock absorber connecting arm away from the mounting body; The shock absorber mounting structure includes: a rod body and a positioning boss, the positioning boss is arranged on the outer periphery of the rod body, the rod body includes a first rod segment and a second rod segment located on both sides of the positioning boss, the first rod segment extends into the fixing hole and is connected to the shock absorber connecting arm, the first rod segment has at least two cylindrical segments, and the cross-sectional areas of at least two of the cylindrical segments increase gradually in the direction approaching the second rod segment, and the second rod segment is used to cooperate with the shock absorber and is provided with an internal thread.

8. The rear axle assembly according to claim 5, characterized in that: The steering knuckle is provided with at least two connection holes above the through hole, and the brake caliper is connected to the at least two connection holes in a one-to-one correspondence through at least two fasteners.

9. A vehicle, characterized in that: include: The rear axle assembly according to any one of claims 1 to 8.

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