Drive axle and vehicle

Abstract

The utility model belongs to the technical field of drive axles, and discloses a drive axle and a vehicle, the drive axle comprises a middle axle housing and side axle housings, the two opposite sides of the middle axle housing are provided with first connecting parts, the side axle housings are arranged on the two opposite sides of the middle axle housing in pairs, and the side axle housings are provided with second connecting parts corresponding to the first connecting parts. The first connecting part is detachably connected with the second connecting part, and a third connecting part is integrally arranged at the end, away from the second connecting part, of the side axle housing and used for being fixedly connected with a brake caliper. The vehicle comprises a chassis and the drive axle, and the middle axle housing is fixed on the chassis. The drive axle is simple in structure and reliable in strength, the middle axle housing and the side axle housings are arranged in a split mode, the size, the weight and the design difficulty of a single part are reduced, transportation is convenient, and the whole drive axle structure can be more conveniently installed on a chassis when the drive axle is installed on the chassis of a vehicle.

Description

Technical Field

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

[0002] In the prior art, the drive axle is generally an integral casting. Figure 1 As shown, Figure 1 The figure shows a traditional drive axle structure, in which the wheel side support shaft, the mounting plate 2' and the integrated bridge housing 1' are welded together, and then the brake caliper 3' of the caliper disc brake is installed on the mounting plate 2' through bolts and other connectors. However, the integrated bridge housing 1' is large in size, heavy in weight, and difficult to process and design. It is difficult to transport and assemble when assembled with the chassis, and consumes a lot of manpower. In addition, the quality of the weld of the mounting plate 2' welded to the bridge housing 1' is difficult to monitor, which is a relatively weak point in strength and also limits the load-bearing capacity of the drive axle. Utility Model Content

[0003] The utility model aims to provide a drive axle with a simple structure and reliable strength. The middle axle housing and the side axle housing are arranged in a separate form, thereby reducing the size, weight and design difficulty of the single component and facilitating transportation.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A drive axle, comprising:

[0006] An intermediate axle housing, wherein first connecting portions are disposed on opposite sides of the intermediate axle housing;

[0007] The side axle housings are arranged in pairs on opposite sides of the middle axle housing, and the side axle housings are provided with a second connection portion corresponding to the first connection portion, and the first connection portion and the second connection portion are detachably connected, and the end of the side axle housing away from the second connection portion is integrally provided with a third connection portion, and the third connection portion is used to fix the brake caliper.

[0008] Preferably, the first connecting portion is provided with a first connecting hole, the second connecting portion is provided with a second connecting hole, and the first connecting hole and the second connecting hole are fixedly connected by a first connecting member.

[0009] Preferably, the first connecting member is configured as a screw-on member, the first connecting hole is configured as a threaded hole, and the screw-on member passes through the second connecting hole and is threadedly connected to the first connecting hole.

[0010] Preferably, the first connection portion is integrally provided with the intermediate bridge housing, and the second connection portion is integrally provided with the side bridge housing.

[0011] Preferably, the brake caliper is provided with a third connecting hole, the third connecting portion is correspondingly provided with a fourth connecting hole, and the third connecting hole and the fourth connecting hole are fixedly connected via a second connecting member.

[0012] Preferably, the second connecting member is configured as a screw-on member, the fourth connecting hole is configured as a threaded hole, and the screw-on member passes through the third connecting hole and is threadedly connected to the fourth connecting hole.

[0013] Preferably, a wheel side support shaft is correspondingly provided at one end of the side axle housing away from the second connecting portion, and the wheel side support shaft is welded and fixed to the corresponding side axle housing.

[0014] Preferably, a radial dimension of the side axle housing is smaller than a radial dimension of the second connecting portion, and a first fillet or a first chamfer is connected between the side axle housing and the corresponding second connecting portion.

[0015] Preferably, a second fillet or a second chamfer is connected between the side bridge housing and the corresponding third connecting portion.

[0016] The utility model also provides a vehicle, using the above-mentioned drive axle, wherein the middle axle housing and the side axle housing are arranged in a separate form for easy transportation, so that when being installed on the vehicle chassis, the entire drive axle structure can be more easily installed on the chassis.

[0017] A vehicle comprising:

[0018] Chassis;

[0019] In the drive axle as described in any one of the above items, the intermediate bridge housing is fixed on the chassis.

[0020] Beneficial effects:

[0021] The drive axle provided by the utility model includes an intermediate axle housing and a side axle housing, wherein first connecting parts are arranged on opposite sides of the intermediate axle housing, and the side axle housings are arranged in pairs on opposite sides of the intermediate axle housing, and the side axle housings are provided with second connecting parts corresponding to the first connecting parts, and the first connecting parts and the second connecting parts are detachably connected. Such an arrangement is equivalent to arranging the intermediate axle housing and the side axle housing, which are integrally formed in the prior art, into a separate form, thereby reducing the size and weight of the single component, reducing the design difficulty of the single component, and facilitating the transportation and assembly of the components. In addition, a third connecting part is integrally arranged at one end of the side axle housing away from the second connecting part, and the third connecting part is used to fix and connect the brake caliper, which is equivalent to using the third connecting part to replace the mounting plate in the traditional drive axle, thereby avoiding the problem of weak strength of the welding seam between the mounting plate and the side axle housing caused by the use of the mounting plate.

[0022] The vehicle provided by the utility model applies the above-mentioned drive axle, the middle axle housing and the side axle housing are assembled separately, the size and weight of a single integral component are reduced, the transportation of the components is convenient, and thus it is convenient to install the entire drive axle structure on the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the drive axle provided in the prior art.

[0024] Figure 2 It is a structural schematic diagram of a drive axle provided by the utility model.

[0025] In the figure:

[0026] 1', bridge housing; 2', mounting plate; 3', brake caliper;

[0027] 1. intermediate bridge housing; 11. first connecting portion; 111. first connecting hole;

[0028] 2. side bridge housing; 21. second connection portion; 211. second connection hole; 22. third connection portion; 221. fourth connection hole; 23. first fillet; 24. second chamfer;

[0029] 3. Brake caliper;

[0030] 41. A first connecting member; 42. A second connecting member.

[0031] 5. Wheel side support shaft. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] This embodiment provides a drive axle. Figure 2 As shown, the drive axle includes an intermediate axle housing 1 and a side axle housing 2, wherein the first connecting portion 11 is provided on both opposite sides of the intermediate axle housing 1. The side axle housings 2 are arranged in pairs on the opposite sides of the intermediate axle housing 1, and the side axle housing 2 is provided with a second connecting portion 21 corresponding to the first connecting portion 11, and the first connecting portion 11 and the second connecting portion 21 are detachably connected, and the end of the side axle housing 2 away from the second connecting portion 21 is integrally provided with a third connecting portion 22, and the third connecting portion 22 is used for fixedly connecting the brake caliper 3.

[0037] In this embodiment, the drive axle includes an intermediate axle housing 1 and a side axle housing 2. The intermediate axle housing 1 is provided with first connecting parts 11 on opposite sides. The side axle housings 2 are provided in pairs on opposite sides of the intermediate axle housing 1. The side axle housings 2 are provided with second connecting parts 21 corresponding to the first connecting parts 11. The first connecting parts 11 and the second connecting parts 21 are detachably connected. Such a configuration is equivalent to configuring the intermediate axle housing 1 and the side axle housing 2, which are integrally formed in the prior art, into a separate form, reducing the size and weight of the single component, reducing the difficulty of designing the single component, and facilitating the transportation and assembly of the components.

[0038] In addition, a third connection portion 22 is integrally provided at one end of the side bridge housing 2 away from the second connection portion 21. The third connection portion 22 is used to fix the brake caliper 3, which is equivalent to using the third connection portion 22 to replace the mounting plate in the traditional drive axle, thereby avoiding the problem of weak strength of the welding seam between the mounting plate and the side bridge housing 2 caused by the use of the mounting plate.

[0039] In this embodiment, by providing a detachable connection between the first connecting portion 11 and the second connecting portion 21, the intermediate axle housing 1 of the same size specification can be connected to the side axle housings 2 of different axial lengths, further ensuring the applicability of the drive axle.

[0040] In this embodiment, the first connection portion 11 is integrally provided with the intermediate axle housing 1, and the second connection portion 21 is integrally provided with the side axle housing 2. Specifically, the intermediate axle housing 1 is integrally cast with the first connection portion 11. The second connection portion 21 is integrally cast with the side axle housing 2. The third connection portion 22 is integrally cast with the side axle housing 2.

[0041] In this embodiment, the first connection portion 11 is provided with a first connection hole 111, the second connection portion 21 is provided with a second connection hole 211, and the first connection hole 111 and the second connection hole 211 are fixedly connected by a first connection member 41. The first connection member 41 penetrates the first connection hole 111 and the second connection hole 211, and the first connection hole 111 is fixedly connected with the second connection hole 211, thereby realizing reliable fixation between the first connection portion 11 and the second connection portion 21.

[0042] As an optional implementation, the first connecting member 41 is configured as a screw-connecting member, the first connecting hole 111 is configured as a threaded hole, and the screw-connecting member passes through the second connecting hole 211 and is threadedly connected to the first connecting hole 111 .

[0043] Optionally, the threaded connection element may be provided as a bolt or a screw.

[0044] In some other optional embodiments, the first connecting member 41 is configured as a bolt assembly, and the bolt assembly includes a bolt and a nut. Specifically, the first connecting hole 111 may not be configured as a threaded hole, and the bolt passes through the first connecting hole 111 and the second connecting hole 211 and is threadedly connected with the nut. The bolt and the nut lock the first connecting member and the second connecting member 42 from two directions, thereby achieving a fixed connection between the first connecting portion 11 and the second connecting portion 21.

[0045] Furthermore, the number of the first connection holes 111 and the number of the second connection holes 211 are arranged one by one, the plurality of first connection holes 111 are evenly spaced along the circumference of the first connection portion 11, and the plurality of second connection holes 211 are evenly spaced along the circumference of the second connection portion 21. Such an arrangement can further ensure reliable fixation between the first connection portion 11 and the second connection portion 21.

[0046] In this embodiment, the brake caliper 3 is provided with a third connecting hole (not shown), the third connecting portion 22 is correspondingly provided with a fourth connecting hole 221 , and the third connecting hole and the fourth connecting hole 221 are fixedly connected via a second connecting member 42 .

[0047] In this embodiment, the brake caliper 3 is provided on the caliper disc brake. The caliper disc brake can be connected to the side axle housing 2 through the brake caliper 3. The second connecting member 42 is provided with a third connecting hole and a fourth connecting hole 221, and the third connecting hole is fixedly connected with the fourth connecting hole 221, so as to realize reliable fixation between the third connecting portion 22 and the brake caliper 3.

[0048] As an optional implementation, the second connecting member 42 is configured as a screw-connecting member, the fourth connecting hole 221 is configured as a threaded hole, and the screw-connecting member passes through the third connecting hole and is threadedly connected to the fourth connecting hole 221 .

[0049] Optionally, the threaded connection element may be provided as a bolt or a screw.

[0050] In some other optional embodiments, the second connecting member 42 is configured as a bolt assembly, and the bolt assembly includes a bolt and a nut. Specifically, the fourth connecting hole 221 may not be configured as a threaded hole, and the bolt passes through the third connecting hole and the fourth connecting hole 221 and is threadedly connected with the nut. The bolt and the nut lock the third connecting member and the brake caliper 3 from two directions, thereby achieving a fixed connection between the side axle housing 2 and the brake caliper 3.

[0051] Furthermore, the third connection holes and the fourth connection holes 221 are provided in a one-to-one correspondence, the plurality of third connection holes are evenly spaced along the circumference of the brake caliper 3, and the plurality of fourth connection holes 221 are evenly spaced along the circumference of the third connection portion 22. Such an arrangement can further ensure reliable fixation between the third connection portion 22 and the brake caliper 3.

[0052] In this embodiment, a wheel side support shaft 5 is correspondingly provided at one end of the side axle housing 2 away from the second connection portion 21, and the wheel side support shaft 5 is welded and fixed to the corresponding side axle housing 2. By providing the wheel side support shaft 5, the planetary reducer module can be reliably mounted on the wheel side support shaft 5, thereby achieving connection with the drive axle.

[0053] Further, the radial dimension of the side axle housing 2 is smaller than the radial dimension of the second connection portion 21, and a first fillet 23 or a first chamfer is connected between the side axle housing 2 and the corresponding second connection portion 21. In this embodiment, a first fillet 23 is connected between the side axle housing 2 and the corresponding second connection portion 21, and the first fillet 23 is bent and extended from the circumference of the side axle housing 2 toward the outer edge of the second connection portion 21. By providing the first fillet 23 or the first chamfer, stress concentration can be avoided at the connection portion between the second connection portion 21 and the side axle housing 2, and the strength and reliability of the connection portion between the side axle housing 2 and the second connection portion 21 can be effectively guaranteed.

[0054] Further, a second fillet or a second chamfer 24 is connected between the side axle housing 2 and the corresponding third connection portion 22. In this embodiment, a second chamfer 24 is connected between the side axle housing 2 and the corresponding third connection portion 22, and the second chamfer 24 is obliquely extended from the circumference of the side axle housing 2 to the outer edge of the third connection portion 22. By providing the second fillet or the second chamfer 24, stress concentration can be avoided at the connection portion between the third connection portion 22 and the side axle housing 2, and the strength and reliability of the third connection portion 22 can be effectively guaranteed.

[0055] This embodiment also provides a vehicle. The vehicle includes a chassis (not shown) and the above-mentioned drive axle. The intermediate axle housing 1 is fixed on the chassis.

[0056] The vehicle provided in this embodiment uses the above-mentioned drive axle, and the middle axle housing 1 and the side axle housing 2 are arranged in a separate form for easy transportation. When installed on the vehicle chassis, it is more convenient to install the entire drive axle structure on the chassis.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A drive axle, characterized in that: include: An intermediate bridge housing (1), wherein first connecting portions (11) are provided on opposite sides of the intermediate bridge housing (1); The side axle housings (2) are arranged in pairs on two opposite sides of the intermediate axle housing (1); the side axle housing (2) is provided with a second connection portion (21) corresponding to the first connection portion (11); the first connection portion (11) and the second connection portion (21) are detachably connected; and a third connection portion (22) is integrally provided at one end of the side axle housing (2) away from the second connection portion (21); the third connection portion (22) is used for fixedly connecting the brake caliper (3).

2. The drive axle according to claim 1, characterized in that: The first connecting portion (11) is provided with a first connecting hole (111), the second connecting portion (21) is provided with a second connecting hole (211), and the first connecting hole (111) and the second connecting hole (211) are fixedly connected via a first connecting member (41).

3. The drive axle according to claim 2, characterized in that: The first connecting member (41) is configured as a screw-connecting member, the first connecting hole (111) is configured as a threaded hole, and the screw-connecting member passes through the second connecting hole (211) and is threadedly connected to the first connecting hole (111).

4. The drive axle according to claim 1, characterized in that: The first connection portion (11) is integrally arranged with the intermediate bridge housing (1), and the second connection portion (21) is integrally arranged with the side bridge housing (2).

5. The drive axle according to claim 1, characterized in that: The brake caliper (3) is provided with a third connection hole, the third connection portion (22) is correspondingly provided with a fourth connection hole (221), and the third connection hole and the fourth connection hole (221) are fixedly connected via a second connection member (42).

6. The drive axle according to claim 5, characterized in that: The second connecting member (42) is configured as a screw-connecting member, the fourth connecting hole (221) is configured as a threaded hole, and the screw-connecting member passes through the third connecting hole and is threadedly connected to the fourth connecting hole (221).

7. The drive axle according to claim 1, characterized in that: A wheel side support shaft (5) is correspondingly arranged at one end of the side axle housing (2) away from the second connection portion (21), and the wheel side support shaft (5) is welded and fixed to the corresponding side axle housing (2).

8. The drive axle according to claim 1, characterized in that: The radial dimension of the side axle housing (2) is smaller than the radial dimension of the second connecting portion (21), and a first fillet (23) or a first chamfer is connected between the side axle housing (2) and the corresponding second connecting portion (21).

9. The drive axle according to claim 1, characterized in that: A second fillet or a second chamfer (24) is connected between the side bridge housing (2) and the corresponding third connecting portion (22).

10. A vehicle, characterized in that: include: Chassis; According to any one of claims 1 to 9, the intermediate bridge housing (1) is fixed on the chassis.

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