Single-wheel and double-wheel interchange axle assembly

Abstract

The utility model discloses a single-wheel and double-wheel interchange axle assembly, which relates to the technical field of automobile parts and comprises an axle housing assembly and a plurality of connecting bolts, and hubs and brake drums are arranged at two ends of the axle housing assembly. The hub comprises a hub body, a flange plate is arranged outside the hub body, and a plurality of connecting holes matched with the connecting bolts are formed in the flange plate; the brake drum comprises a brake drum body, the outer side edge of the brake drum body is bent inwards to form a flanging part used for wrapping the flange plate, and the flanging part is provided with mounting holes in one-to-one correspondence with the connecting holes; and the connecting bolts are pressed in the corresponding connecting holes and mounting holes in an interference fit manner.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a single-wheel and double-wheel interchangeable axle assembly. Background Art

[0002] The existing light truck axle has a small load capacity and is only suitable for single-wheel tires, which is not convenient for users to modify. If the vehicle is modified to have dual rear tires, the axle assembly needs to be replaced, resulting in high costs. In addition, the existing axle reducer assembly has a small output torque and a high rate of after-sales failures.

[0003] See also Figure 1 As shown, the existing brake drum assembly and wheel hub assembly are connected by bolts, while the original structure uses nuts inside bolts and spring washers to connect, which not only has low strength, but also requires disassembly of the half shaft and wheel hub when repairing and replacing the friction plate, resulting in low work efficiency. Utility Model Content

[0004] In view of the defects existing in the prior art, the purpose of the utility model is to provide a single-wheel and double-wheel interchangeable axle assembly, redesign the wheel hub structure, change the installation length of the steel ring stop, and redesign the brake drum. The wheel hub flange is wrapped by the brake drum, and the outer diameter of the flange is used as a reference for positioning, which improves the strength; when replacing the friction plate, the half shaft and the wheel hub do not need to be disassembled, and the brake drum can be directly disassembled for replacement, which is simple and efficient.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a single-wheel and double-wheel interchangeable axle assembly, including a bridge housing assembly, both ends of the bridge housing assembly are provided with wheel hub brake drums, and also include a plurality of connecting bolts; the wheel hub includes a hub body, a flange is provided outside the wheel hub body, and the flange is provided with a plurality of connecting holes compatible with the connecting bolts; the brake drum includes a brake drum body, the outer edge of the brake drum body is bent inward to form a flange portion for wrapping the flange, and the flange portion is provided with mounting holes corresponding to each connecting hole one by one; the connecting bolts are pressed into the corresponding connecting holes and mounting holes by interference fit.

[0006] A further improvement is that the connecting bolt comprises a bolt body, the bolt body is located in the connecting hole and the mounting hole, and the inner end of the bolt body is provided with a connecting anti-rotation flange, and the outer end of the bolt body is provided with a screw rod.

[0007] Further improvements are: a section is provided on the side wall of the screw rod, and a hub positioning stop is provided at the connecting hole of the flange plate, and the section cooperates with the hub positioning stop to prevent the bolt from rotating due to failure; the outer diameter of the screw rod is smaller than the outer diameter of the bolt body, and a second inclined transition surface is provided between the bolt body and the screw rod.

[0008] A further improvement is that a first inclined transition surface is provided between the brake drum body and the flange portion.

[0009] A further improvement is that the flange portion is provided with a plurality of weight-reducing grooves.

[0010] A further improvement is that a boss is provided on the outer wall of the brake drum body.

[0011] A further improvement is that the steel ring installation stop on the wheel hub is lengthened to meet the needs of single-wheel or double-wheel modification, and a plurality of reinforcing ribs are provided between the wheel hub body and the flange.

[0012] A further improvement is that a reducer assembly is arranged in the lute hole of the bridge housing assembly, and the output torque of the reducer assembly is 13000 N·m.

[0013] A further improvement is that leaf spring seats are respectively arranged at both ends of the bridge housing assembly, and the leaf spring seats are of frame structure.

[0014] A further improvement is that a brake air chamber is provided on the bridge housing assembly.

[0015] The beneficial effects of the utility model are:

[0016] 1. In the utility model, the flange is wrapped by the brake drum, and the outer diameter of the flange is used as a reference for positioning, so the strength is improved; when replacing the friction plate, the brake drum can be directly disassembled for replacement without disassembling the half shaft and the wheel hub, which is simple and efficient.

[0017] 2. In the utility model, the connection bolt eliminates the connection between the inner nut and the spring washer, and adopts interference fit press-fitting to achieve lightweight.

[0018] 3. In the utility model, the leaf spring seat adopts a frame structure design to achieve lightweight.

[0019] 4. The installation stop of the wheel hub steel ring is lengthened to meet the user's single or double wheel modification needs (without replacing the axle assembly) BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the installation of the wheel hub brake drum assembly in the prior art;

[0021] Figure 2 A three-dimensional diagram of a single-wheel and double-wheel interchangeable axle assembly in an embodiment of the utility model;

[0022] Figure 3 This is a front view of a single-wheel and double-wheel interchangeable axle assembly in an embodiment of the utility model;

[0023] Figure 4 A top view of a single-wheel and double-wheel interchangeable axle assembly in an embodiment of the utility model;

[0024] Figure 5 It is a side view of the single-wheel and double-wheel interchangeable axle assembly in the embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the installation of the wheel hub and the brake drum in the embodiment of the utility model;

[0026] Figure 7 This is a front view of the brake drum assembly in the embodiment of the utility model;

[0027] Figure 8 A cross-sectional view of a brake drum in an embodiment of the utility model;

[0028] Fig. 9 This is a front view of the wheel hub in the embodiment of the utility model;

[0029] Fig.10 It is a rear view of the wheel hub in the embodiment of the utility model;

[0030] Fig.11 A cross-sectional view of a wheel hub in an embodiment of the utility model;

[0031] Fig.12 This is a schematic diagram of the structure of the connecting bolts in the embodiment of the utility model;

[0032] Fig.13 It is a schematic diagram of the structure of the screw in the embodiment of the utility model.

[0033] Reference numerals:

[0034] 1-bridge housing assembly; 11-reducer assembly; 12-leaf spring seat; 13-brake air chamber;

[0035] 2-brake drum; 21-brake drum body; 22-first inclined transition surface; 23-flanged portion; 24-mounting hole; 25-boss; 26-weight reduction groove;

[0036] 3-wheel hub; 31-wheel hub body; 32-flange; 33-connection hole; 34-reinforcement rib; 35-wheel hub positioning stop; 36-rim installation stop;

[0037] 4-connecting bolt; 41-bolt body; 42-connecting anti-rotation flange; 43-screw; 44-section; 45-second inclined transition surface. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0039] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0041] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0042] See also Figure 2 to Figure 6 As shown, the embodiment of the utility model provides a single-wheel and double-wheel interchangeable axle assembly, including a bridge housing assembly 1, both ends of which are provided with wheel hubs 3 and brake drums 2, and the single-wheel and double-wheel interchangeable axle assembly also includes a plurality of connecting bolts 4; specifically, a reducer assembly 11 is provided in the lute hole of the bridge housing assembly 1, and the output torque of the reducer assembly 11 is 13000N·m. Leaf spring seats 12 are respectively provided at both ends of the bridge housing assembly 1, and the leaf spring seats 12 are frame-type structures. A brake air chamber 13 is provided on the bridge housing assembly 1.

[0043] See also Figures 9 to 11 As shown, the wheel hub 3 includes a wheel hub body 31, a flange 32 is arranged outside the wheel hub body 31, and a plurality of connecting holes 33 compatible with the connecting bolts 4 are arranged on the flange 32; specifically, the steel ring mounting stop 36 on the wheel hub 3 is lengthened to meet the needs of single-wheel and double-wheel modification, and a plurality of reinforcing ribs 34 are arranged between the wheel hub body 31 and the flange 32.

[0044] See also Figure 7-8As shown, the brake drum 2 includes a brake drum body 21, the outer edge of the brake drum body 21 is bent inward to form a flange portion 23 for wrapping the flange 32, and the flange portion 23 is provided with mounting holes 24 corresponding to each connection hole 33; specifically, a first inclined transition surface 22 is provided between the brake drum body 21 and the flange portion 23. The flange portion 23 is provided with a plurality of weight-reducing grooves 26. The outer wall of the brake drum body 21 is provided with a boss 25.

[0045] See also Figure 12-13 As shown, the connecting bolt 4 is press-fitted into the corresponding connecting hole 33 and the mounting hole 24 by interference fit. Specifically, the connecting bolt 4 includes a bolt body 41, which is located in the connecting hole 33 and the mounting hole 24, and the inner end of the bolt body 41 is provided with a connecting anti-rotation flange 42, and the outer end of the bolt body 41 is provided with a screw 43. The side wall of the screw 43 is provided with a cut surface 44, and the connection hole 33 of the flange 32 is provided with a hub positioning stop 35, and the cut surface 44 cooperates with the hub positioning stop 35 to prevent the bolt from rotating due to failure; the outer diameter of the screw 43 is smaller than the outer diameter of the bolt body 41, and a second inclined transition surface 45 is provided between the bolt body 41 and the screw 43.

[0046] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" 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, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A single-wheel and double-wheel interchangeable axle assembly, comprising a bridge housing assembly (1), wherein both ends of the bridge housing assembly (1) are provided with a wheel hub (3) and a brake drum (2), characterized in that: Also includes a plurality of connecting bolts (4); The wheel hub (3) comprises a wheel hub body (31), a flange (32) is arranged outside the wheel hub body (31), and a plurality of connection holes (33) adapted to the connection bolts (4) are arranged on the flange (32); The brake drum (2) comprises a brake drum body (21), the outer edge of the brake drum body (21) is bent inward to form a flange portion (23) for wrapping a flange (32), and the flange portion (23) is provided with mounting holes (24) corresponding to each connection hole (33) one by one; The connecting bolt (4) is press-fitted into the corresponding connecting hole (33) and the mounting hole (24) by means of interference fit.

2. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: The connecting bolt (4) comprises a bolt body (41), wherein the bolt body (41) is located in the connecting hole (33) and the mounting hole (24), and a connecting anti-rotation flange (42) is provided at the inner end of the bolt body (41), and a screw rod (43) is provided at the outer end of the bolt body (41).

3. The single-wheel and double-wheel interchangeable axle assembly according to claim 2 is characterized in that: The side wall of the screw rod (43) is provided with a cut surface (44), and the connection hole (33) of the flange (32) is provided with a hub positioning stop (35). The cut surface (44) cooperates with the hub positioning stop (35) to prevent the bolt from rotating due to failure. The outer diameter of the screw rod (43) is smaller than the outer diameter of the bolt body (41), and a second inclined transition surface (45) is provided between the bolt body (41) and the screw rod (43).

4. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: A first inclined transition surface (22) is provided between the brake drum body (21) and the flange portion (23).

5. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: The flange portion (23) is provided with a plurality of weight-reducing grooves (26).

6. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: The outer wall of the brake drum body (21) is provided with a boss (25).

7. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: The steel ring mounting stop (36) on the wheel hub (3) is lengthened to meet the requirements of single-wheel or double-wheel modification, and a plurality of reinforcing ribs (34) are provided between the wheel hub body (31) and the flange (32).

8. The single-wheel and double-wheel interchangeable axle assembly according to claim 1 is characterized in that: A reducer assembly (11) is arranged in the lute hole of the bridge housing assembly (1), and the output torque of the reducer assembly (11) is 13000 N·m.

9. The single-wheel and double-wheel interchangeable axle assembly according to claim 1, characterized in that: Leaf spring seats (12) are respectively arranged at both ends of the bridge housing assembly (1), and the leaf spring seats (12) are of a frame structure.

10. The single-wheel and double-wheel interchangeable axle assembly according to claim 1, characterized in that: The axle housing assembly (1) is provided with a brake air chamber (13).

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