Universal rear axle structure

Abstract

The invention discloses a universal rear axle structure, and relates to the field of automobiles. The universal rear axle structure comprises a rear axle body and a wheel hub mounting plate. The rear axle body comprises an axle body, two axle heads arranged at two ends of the axle body, and two spring seats arranged on the axle body and close to the axle heads at the two ends, and both axle heads are arranged to be sunken relative to the axle body; the wheel hub mounting plate is arranged in one-to-one correspondence with the axle heads, and forms an installation space together with the sunken axle heads, and the wheel hub mounting plate is used to install any one of a disc brake, a drum brake or an EPB electronic caliper in the installation space through a third-generation wheel hub bearing. On the one hand, the third-generation wheel hub bearing is adopted, and the service life is also greatly improved. On the other hand, by setting the axle head of the rear axle to be sunken, an installation space can be formed between the wheel hub mounting plate, and the installation space is a tool space for the third-generation wheel hub bearing installation bolts, so that a disc brake, a drum brake, and an EPB electronic caliper can be carried.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular to a universal rear axle structure. Background Art

[0002] In the domestic automobile industry, models with trailing arm non-independent suspension can only be equipped with drum brakes and use first-generation wheel hub bearings. They have a short lifespan, poor reliability, and no configuration expansion. With the development of automobile technology and the increase in customer demand, trailing arm non-independent suspensions are required to be equipped with disc brakes, drum brakes, EPB electronic calipers and other configurations to meet customer needs. Summary of the invention

[0003] The purpose of the present invention is to provide a universal rear axle structure, which is a disc-drum universal rear axle that can be equipped with disc brakes, drum brakes, and EPB electronic calipers. At the same time, it adopts third-generation wheel hub bearings, and its service life is greatly improved.

[0004] The embodiment of the present invention is achieved as follows:

[0005] A universal rear axle structure, comprising:

[0006] The rear axle body comprises an axle body, two axle heads arranged at two ends of the axle body, and two spring seats arranged on the axle body and close to the axle heads at the two ends, and the two axle heads are both arranged to be sunken relative to the axle body;

[0007] The wheel hub mounting plate is arranged in one-to-one correspondence with the shaft head, and together with the sunken shaft head, forms an installation space. The wheel hub mounting plate is used to install any one of the disc brakes, drum brakes or EPB electronic calipers in the installation space through the third-generation wheel hub bearing.

[0008] Furthermore, in a preferred embodiment of the present invention, the universal rear axle structure also includes a reinforcing plate, which is sleeved on the axle head and welded to the wheel hub mounting plate.

[0009] Furthermore, in a preferred embodiment of the present invention, the reinforcing plate includes a first side wall, a second side wall, a third side wall and a fourth side wall which are connected end to end in sequence, the first side wall, the second side wall, the third side wall and the fourth side wall are connected in sequence to form a hollow structure, and the cross-section of the reinforcing plate of the hollow structure is square.

[0010] Furthermore, in a preferred embodiment of the present invention, the reinforcing plate and the hub mounting plate are welded together by double-sided full welding.

[0011] Furthermore, in a preferred embodiment of the present invention, the wheel hub mounting plate has a first end face and a second end face that are relatively arranged, the first end face has a welding position, the welding position is used for welding with the reinforcement plate, and the second end face is used to install any one of a disc brake, a drum brake or an EPB electronic caliper.

[0012] Furthermore, in a preferred embodiment of the present invention, two welding clamps are spaced apart on the first end surface of the hub mounting plate, the first end of the welding clamp is perpendicular to the first end, and the second end of the welding clamp extends in a direction away from the first end.

[0013] Further, in a preferred embodiment of the present invention, the second end of the welding clamp has a hook portion, the hook portion is arranged toward the reinforcing plate, and the welding clamp is used for welding with the reinforcing plate.

[0014] Furthermore, in a preferred embodiment of the present invention, a welding base plate is also provided on the first end face of the hub mounting plate. The welding base plate is provided at the end of the first end face and forms a welding space with the welding clamp. The welding space is used for welding with the reinforcing plate.

[0015] Furthermore, in a preferred embodiment of the present invention, a through hole is provided on the wheel hub mounting plate, and any one of a disc brake, a drum brake or an EPB electronic caliper is installed through the through hole and installed in the installation space.

[0016] Furthermore, in a preferred embodiment of the present invention, a backing plate is further provided on the second end surface of the hub mounting plate, and the backing plate is arranged around the edge of the through hole.

[0017] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0018] An embodiment of the present invention provides a universal rear axle structure, including a rear axle body and a wheel hub mounting plate. The rear axle body has an axle body, two axle heads arranged at both ends of the axle body, and two spring seats arranged on the axle body and close to the axle heads at both ends, and both axle heads are arranged to be sunken relative to the axle body; the wheel hub mounting plate is arranged in a one-to-one correspondence with the axle heads, and together with the sunken axle heads, an installation space is formed, and the wheel hub mounting plate is used to install any one of the disc brake, drum brake or EPB electronic caliper in the installation space through the third-generation wheel hub bearing. On the one hand, the third-generation wheel hub bearing is adopted, and the service life is also greatly improved. On the other hand, by sinking the axle head of the rear axle, an installation space can be formed between the wheel hub mounting plate, and the installation space is a tool space for the third-generation wheel hub bearing mounting bolts, so disc brakes, drum brakes, and EPB electronic calipers can be carried.

[0019] To sum up, the universal rear axle structure is a disc-drum universal rear axle, which can be equipped with disc brakes, drum brakes, EPB electronic calipers, and uses third-generation wheel hub bearings, and its service life has been greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a universal rear axle structure provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a partial structure of a universal rear axle structure provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of the universal rear axle structure and the disc brake provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of the universal rear axle structure and the drum brake provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of the universal rear axle structure provided by an embodiment of the present invention in cooperation with the EPB electronic caliper;

[0026] Figure 6 A schematic structural diagram of a hub mounting plate provided in an embodiment of the present invention;

[0027] Figure 7 A schematic structural diagram of the cooperation between the hub mounting plate and the reinforcement plate provided in an embodiment of the present invention.

[0028] Icons: 100-universal rear axle structure; 101-axle body; 102-rear axle body; 103-axle head; 105-spring seat; 107-wheel hub mounting plate; 109-installation space; 111-reinforcement plate; 113-first side wall; 115-second side wall; 117-third side wall; 119-fourth side wall; 125-welding clip; 127-welding base plate; 129-hook; 131-through hole; 133-pad; 200-disc brake; 300-drum brake; 400-EPB electronic caliper. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the invented product is usually placed when in use. They are only for the convenience of describing 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Figure 1 A schematic structural diagram of a universal rear axle structure 100 provided in this embodiment; Figure 2 A schematic diagram of a partial structure of a universal rear axle structure 100 provided in this embodiment; Figure 3 A schematic diagram of the structure of the universal rear axle structure 100 and the disc brake 200 provided in this embodiment; Figure 4 A schematic diagram of the structure of the universal rear axle structure 100 and the drum brake 300 provided in the embodiment; Figure 5 This is a schematic diagram of the structure of the universal rear axle structure 100 provided in this embodiment and the EPB electronic caliper 400. Figures 1 to 5 This embodiment provides a universal rear axle structure 100 , including a rear axle body 102 and a wheel hub mounting plate 107 .

[0035] Please refer again Figures 1 to 5 In this embodiment, the rear axle body 102 has an axle body 101, two shaft heads 103 arranged at both ends of the axle body 101, and two spring seats 105 arranged on the axle body 101 and close to the shaft heads 103 at both ends, and both shaft heads 103 are arranged to be sunken relative to the axle body 101, preferably sunken in a "Z" shape; the wheel hub mounting plate 107 is arranged one by one with the shaft heads 103, and together with the sunken shaft heads 103, an installation space 109 is formed, and the wheel hub mounting plate 107 is used to install any one of the disc brake 200, drum brake 300 or EPB electronic caliper 400 in the installation space 109 through the third-generation wheel hub bearing. On the one hand, the third-generation wheel hub bearing is adopted, and the service life is also greatly improved. On the other hand, by sinking the shaft head 103 of the rear axle, an installation space 109 can be formed between the wheel hub mounting plate 107. The installation space 109 is a tool space for the third-generation wheel hub bearing mounting bolts, so disc brakes 200, drum brakes 300, and EPB electronic calipers 400 can be installed.

[0036] Figure 6 A schematic structural diagram of the hub mounting plate 107 provided in this embodiment; Figure 7This is a schematic diagram of the structure of the hub mounting plate 107 and the reinforcing plate 111 provided in this embodiment. Figures 1 to 7 In this embodiment, the universal rear axle structure 100 further includes a reinforcing plate 111, which is sleeved on the axle head 103 and welded to the hub mounting plate 107. The reinforcing plate 111 is provided to effectively strengthen the connection strength between the hub mounting plate 107 and the rear axle, while ensuring the bearing strength after installing other components.

[0037] In detail, the reinforcing plate 111 includes a first side wall 113, a second side wall 115, a third side wall 117 and a fourth side wall 119 which are connected end to end in sequence. The first side wall 113, the second side wall 115, the third side wall 117 and the fourth side wall 119 are connected in sequence to form a hollow structure, and the cross section of the reinforcing plate 111 of the hollow structure is square. The reinforcing plate 111 serves as a transition piece connecting the hub mounting plate 107 and the rear axle head 103, and its own strength and welding strength must be guaranteed. The cross section is designed to be square, which compresses the axial gap; at the same time, it is welded with the hub mounting plate 107 and the rear axle head 103 over a large area. Of course, in other embodiments of the present invention, the shape of the reinforcing plate 111 can also be selected according to demand, and the embodiments of the present invention are not limited thereto.

[0038] As a preferred solution, the reinforcing plate 111 is welded to the hub mounting plate 107 by double-sided full welding. The connection by double-sided full welding can effectively ensure the connection strength between the shaft head 103 and the hub mounting plate 107. Of course, in other embodiments of the present invention, the welding method between the reinforcing plate 111 and the hub mounting plate 107 can also be selected according to needs, and is not limited to double-sided full welding, and the embodiments of the present invention are not limited thereto.

[0039] Please refer again Figures 1 to 7 In this embodiment, the hub mounting plate 107 has a first end face and a second end face that are arranged opposite to each other, the first end face has a welding position, the welding position is used to be welded with the reinforcing plate 111, and the second end face is used to install any one of the disc brake 200, the drum brake 300 or the EPB electronic caliper 400. Connecting the hub mounting plate 107 and the shaft head 103 through the reinforcing plate 111 can effectively improve the connection strength, avoid damage, and thus increase the service life.

[0040] In detail, in this embodiment, two welding clamps 125 are arranged at intervals on the first end surface of the hub mounting plate 107, the first end of the welding clamp 125 is perpendicular to the first end, and the second end of the welding clamp 125 extends in a direction away from the first end. One welding clamp 125 can be used as a welding point, and the two welding points arranged at intervals can effectively fix both ends of the reinforcing plate 111 in the length direction.

[0041] The second end of the welding clamp 125 has a hook 129, which is disposed toward the reinforcing plate 111, and the welding clamp 125 is used for welding with the reinforcing plate 111. The provision of the hook 129 can increase the contact area between the welding position and the reinforcing plate 111, thereby improving the strength of the welding.

[0042] As a preferred solution, in this embodiment, the first end surface of the hub mounting plate 107 is further provided with a welding base plate 127, which is provided at the end of the first end surface and forms a welding space with the welding clamp 125, and the welding space is used for welding with the reinforcing plate 111. The welding base plate 127 can also be used as a welding position, and the welding strength can be effectively guaranteed through the joint welding of the three welding positions, thereby ensuring the connection strength between the shaft head 103 and the hub mounting plate 107.

[0043] Please refer again Figures 1 to 7 In this embodiment, a through hole 131 is provided on the wheel hub mounting plate 107, and any one of the disc brake 200, drum brake 300 or EPB electronic caliper 400 is installed through the through hole 131 and installed in the installation space 109. The shaft head 103 of the rear axle is designed to be Z-shaped, with the center of the shaft tube at the bottom and the center of the third-generation wheel hub bearing at the top, so that the installation space 109 of the third-generation wheel hub bearing can be reserved, and then the wheel hub mounting plate 107 and the reinforcement plate 111 welded on the rear axle shaft head 103 provide a reliable installation point and tool operation space for the third-generation wheel hub bearing and the brake.

[0044] As a preferred solution, a pad 133 is further provided on the second end surface of the hub mounting plate 107, and the pad 133 is arranged around the edge of the through hole 131. The arrangement of the pad 133 can effectively ensure the four-wheel parameters of the rear axle and facilitate the adjustment of the parameters.

[0045] In summary, the embodiment of the present invention provides a universal rear axle structure 100, including a rear axle body 102 and a wheel hub mounting plate 107. The rear axle body 102 includes an axle body 101, two shaft heads 103 arranged at two ends of the axle body 101, and two spring seats 105 arranged on the axle body 101 and close to the shaft heads 103 at the two ends, and the two shaft heads 103 are both arranged to be sunken relative to the axle body 101; the wheel hub mounting plate 107 is arranged in a one-to-one correspondence with the shaft heads 103, and together with the sunken shaft heads 103, an installation space 109 is formed, and the wheel hub mounting plate 107 is used to install any one of the disc brake 200, the drum brake 300 or the EPB electronic caliper 400 in the installation space 109 through the third-generation wheel hub bearing. On the one hand, the third-generation wheel hub bearing is adopted, and the service life is also greatly improved. On the other hand, by sinking the shaft head 103 of the rear axle, an installation space 109 can be formed between the wheel hub mounting plate 107. The installation space 109 is a tool space for the third-generation wheel hub bearing mounting bolts, so disc brakes 200, drum brakes 300, and EPB electronic calipers 400 can be installed.

[0046] In summary, the universal rear axle structure 100 provided in this embodiment ensures the welding strength and the inherent strength of the rear axle, and provides a mounting position and space for the brake, thereby enabling the disc brake 200, the drum brake 300, and the EPB electronic caliper 400 to be assembled on the same rear axle.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A universal rear axle structure, characterized in that: include: A rear axle body, the rear axle body comprising an axle body, two axle heads arranged at two ends of the axle body, and two spring seats arranged on the axle body and close to the axle heads at the two ends, and the two axle heads are both arranged to be sunken relative to the axle body; A wheel hub mounting plate, the wheel hub mounting plate is arranged in one-to-one correspondence with the shaft head, and together with the shaft head arranged downwardly, forms an installation space, and the wheel hub mounting plate is used to install any one of a disc brake, a drum brake or an EPB electronic caliper in the installation space through a third-generation wheel hub bearing; A reinforcing plate, the reinforcing plate is sleeved on the shaft head and welded to the wheel hub mounting plate, the reinforcing plate and the wheel hub mounting plate are welded and connected by double-sided full welding; the reinforcing plate comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected end to end, the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially connected to form a hollow structure, and the cross section of the reinforcing plate of the hollow structure is square; The wheel hub mounting plate has a first end face and a second end face that are arranged opposite to each other, the first end face has a welding position, the welding position is used for welding with the reinforcing plate, and the second end face is used for installing any one of a disc brake, a drum brake or an EPB electronic caliper; two welding clips are arranged at intervals on the first end face of the wheel hub mounting plate, the first end of the welding clip is perpendicular to the first end face, and the second end of the welding clip extends in a direction away from the first end; the second end of the welding clip has a hook portion, the hook portion is arranged toward the reinforcing plate, and the welding clip is used for welding with the reinforcing plate.

2. The universal rear axle structure according to claim 1, characterized in that: The first end surface of the hub mounting plate is also provided with a welding base plate, which is arranged at the end of the first end surface and forms a welding space with the welding clamp, and the welding space is used for welding with the reinforcing plate.

3. The universal rear axle structure according to claim 1, characterized in that: A through hole is provided on the wheel hub mounting plate, and any one of the mounting disc brake, the drum brake or the EPB electronic caliper is installed in the mounting space through the through hole.

4. The universal rear axle structure according to claim 3, characterized in that: A backing plate is also provided on the second end surface of the hub mounting plate, and the backing plate is arranged around the edge of the through hole.

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