Air bag suspension electric drive axle cast axle housing

By designing a cast axle housing for an air-suspension electric drive axle, the problems of welding defects and heavy weight in existing new energy commercial vehicle axle housings have been solved, achieving a highly integrated, low-cost, and lightweight axle housing, thus improving the smoothness and comfort of the vehicle.

CN224447354UActive Publication Date: 2026-07-03XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
Filing Date
2025-07-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing axle housings of new energy commercial vehicles mostly adopt a stamping and welding structure, which has problems such as welding defects, complex manufacturing, high cost, large weight and no lightweight advantages.

Method used

The air-suspension electric drive axle is cast axle housing. By casting the axle housing assembly, half sleeve, rear cover, V-shaped thrust rod support, longitudinal thrust rod support, shock absorber support and airbag support in one piece, the integration and rigidity are improved, the types of molds and processing costs are reduced, and the use of airbag assembly improves the ride comfort of the vehicle.

Benefits of technology

It achieves a highly integrated, low-cost, and lightweight axle housing design, which improves the ride comfort and reduces the assembly complexity and manufacturing difficulty of the suspension system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to vehicle drive axle housing technical field especially relates to an air bag suspension formula electric drive axle casting axle housing, include: axle housing assembly, half sleeve sleeve, back cover, V type push rod support, longitudinal push rod support, damper support, air bag support, axle housing assembly both sides all are equipped with half sleeve sleeve. The axle housing of the utility model is integrally casted with half sleeve sleeve, back cover, V type push rod support, longitudinal push rod support, damper support, air bag support, and this is compared to the punch welding type axle housing, and the defect is less, and the rigidity is good, not only the high degree of integration, can reduce the suspension system assembly complexity, still can reduce the die variety and manufacturing processing cost, and the quality is lighter than traditional axle housing under the same strength requirement, can reduce the automobile spring under the quality, and the air bag suspension of adopting air bag assembly will greatly improve the vehicle smoothness and comfort, and the practicality improves.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle drive axle housing technology, and in particular to a cast axle housing for an air-suspension electric drive axle. Background Technology

[0002] With the development of axle housing technology for new energy commercial vehicles, electric drive axle housing technology has been applied. The electric drive axle is the power system and transmission system of new energy commercial vehicles, which has functions such as providing power to the whole vehicle, bearing load, and reducing speed. The existing electric drive axle housings include integral electric drive axle housings and segmented electric drive axle housings, with integral electric drive axle housing technology being widely used.

[0003] However, most existing new energy commercial vehicle axle housings use stamped and welded axle housings, which are not only prone to welding defects, affecting the sealing and strength of the axle housing; but also have a complex and cumbersome manufacturing process, resulting in high production costs; and their complex shape and structure greatly increase the weight and cost of the entire axle housing unit, offering no lightweight advantages. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a cast bridge housing for an airbag suspension type electric drive bridge.

[0006] To achieve the above objectives, the technical solution of this utility model is: a cast axle housing for an air-suspension electric drive axle, comprising: an axle housing assembly, a sleeve, a rear cover, a V-shaped thrust rod support, a longitudinal thrust rod support, a shock absorber support, and an airbag support. Sleeves are installed on both sides of the axle housing assembly, and a rear cover is provided at the rear of the axle housing assembly. A V-shaped thrust rod support is installed on the upper side of the axle housing assembly, and a longitudinal thrust rod support and a shock absorber support are installed on the lower side. The sleeve, rear cover, V-shaped thrust rod support, longitudinal thrust rod support, shock absorber support, and airbag support are all integrally cast with the axle housing assembly.

[0007] In some embodiments, a wheel end assembly is mounted on the sleeve sleeve.

[0008] In some embodiments, a flange is provided on one side of the sleeve sleeve, and a brake assembly is detachably connected to the flange.

[0009] In some embodiments, the V-shaped thrust rod support is provided with a mounting clip, and the V-shaped thrust rod assembly is mounted on the mounting clip.

[0010] In some embodiments, a through hole is provided on the longitudinal thrust rod support, and a longitudinal thrust rod assembly is provided on the through hole.

[0011] In some embodiments, a through hole is provided on the damper support, and a damper assembly is disposed on the through hole.

[0012] In some embodiments, the airbag support has a threaded hole, and the airbag assembly is installed in the threaded hole.

[0013] In some embodiments, an electric drive system assembly mounting surface is provided on the front side of the axle housing assembly, and the electric drive system assembly is mounted on the electric drive system assembly mounting surface.

[0014] In some embodiments, a stabilizer bar support is connected to the underside of the axle housing assembly and is located on one side of the damper support.

[0015] In some embodiments, a stabilizer bar is mounted on the stabilizer bar support.

[0016] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The axle housing, half sleeve sleeve, rear cover, V-shaped thrust rod support, longitudinal thrust rod support, shock absorber support, and airbag support of this utility model are all integrally cast. Compared with the stamped and welded axle housing, this has fewer defects, better rigidity and strength, higher integration, which can reduce the assembly complexity of the suspension system, reduce the types of molds and manufacturing costs, and is lighter than the traditional axle housing under the same strength requirements, which can reduce the unsprung mass of the car. Furthermore, the airbag suspension with airbag assembly will greatly improve the ride comfort and practicality of the vehicle.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0018] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0019] To make the above-mentioned beneficial effects and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0023] Explanation of key figure labels:

[0024] Figure 1 This is a schematic diagram of the structure of a cast bridge housing for an airbag suspension electric drive bridge according to the present invention;

[0025] Figure 2 This is a structural diagram showing the installation of various components in the bridge housing assembly of this utility model.

[0026] Explanation of main reference numerals: Axle housing assembly -1, half sleeve sleeve -2, rear cover -3, V-type thrust rod support -4, longitudinal thrust rod support -5, shock absorber support -6, airbag support -7, brake assembly -8, V-type thrust rod assembly -9, longitudinal thrust rod assembly -10, shock absorber assembly -11, airbag assembly -12, electric drive system assembly mounting surface -13, electric drive system assembly -14, stabilizer bar support -15, stabilizer bar -16, flange -17, wheel end assembly -18. Detailed Implementation

[0027] The following detailed description of the embodiments of this utility model, in conjunction with the accompanying drawings, will provide a thorough understanding of how this utility model uses technical means to solve technical problems and achieve technical effects, enabling its implementation. It should be noted that, provided there is no conflict, the various embodiments and features within them can be combined with each other, and all resulting technical solutions are within the protection scope of this utility model.

[0028] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of this invention. However, it will be apparent to those skilled in the art that this invention may be practiced without the specific details or particular methods described herein.

[0029] Please see Figure 1-2This utility model provides a cast axle housing for an air-suspension electric drive axle, comprising: axle housing assembly 1, a half-sleeve sleeve 2, a rear cover 3, a V-shaped thrust rod support 4, a longitudinal thrust rod support 5, a shock absorber support 6, and an airbag support 7. Half-sleeve sleeves 2 are installed on both sides of the axle housing assembly 1, and a rear cover 3 is provided on the rear side of the axle housing assembly 1. A V-shaped thrust rod support 4 is installed on the upper side of the axle housing assembly 1, and a longitudinal thrust rod support 5 and a shock absorber support 6 are installed on the lower side. The half-sleeve sleeve 2, the rear cover 3, the V-shaped thrust rod support 4, the longitudinal thrust rod support 5, the shock absorber support 6, and the airbag support 7 are all integrally cast with the axle housing assembly 1.

[0030] When in use, the half-sleeve sleeve 2, rear cover 3, V-shaped thrust rod support 4, longitudinal thrust rod support 5, shock absorber support 6, and airbag support 7 are all installed on the axle housing assembly 1 by integral casting. Such an axle housing not only has high integration and simple structure, but also reduces the types of molds and manufacturing costs. In addition, it is lighter than the traditional axle housing, which can reduce the unsprung mass of the car. Furthermore, the airbag suspension with airbag support 7 will greatly improve the ride smoothness and comfort of the vehicle.

[0031] According to some embodiments of this application, optionally, a wheel end assembly 18 is mounted on the sleeve 2. This facilitates the installation of movable wheels.

[0032] According to some embodiments of this application, optionally, a flange 17 is provided on one side of the sleeve 2, and a brake assembly 8 is detachably connected to the flange 17. This facilitates the assembly and disassembly of the brake assembly 8.

[0033] According to some embodiments of this application, optionally, the V-shaped thrust rod support 4 is provided with a mounting clamp, and the V-shaped thrust rod assembly 9 is mounted on the mounting clamp. This facilitates the fixing of the V-shaped thrust rod assembly 9.

[0034] According to some embodiments of this application, optionally, a through hole is provided on the longitudinal thrust rod support 5, and a longitudinal thrust rod assembly 10 is disposed on the through hole. By providing the through hole, the longitudinal thrust rod assembly 10 can be more easily positioned and installed on the longitudinal thrust rod support 5.

[0035] According to some embodiments of this application, optionally, a through hole is provided on the damper support 6, and a damper assembly 11 is disposed on the through hole. By providing the through hole, the damper assembly 11 can be more easily positioned and installed on the damper support 6.

[0036] According to some embodiments of this application, optionally, the airbag support 7 has a threaded hole, and the airbag assembly 12 is installed in the threaded hole. The airbag assembly 12 is installed on the airbag support 7 through the threaded hole, so that the axle housing assembly 1 has the airbag assembly 12, which has the effect of improving the ride comfort of the vehicle.

[0037] According to some embodiments of this application, optionally, an electric drive system assembly mounting surface 13 is provided on the front side of the axle housing assembly 1, and an electric drive system assembly 14 is mounted on the electric drive system assembly mounting surface 13. The electric drive system assembly 14 has the function of controlling the electric drive of the entire vehicle.

[0038] According to some embodiments of this application, optionally, a stabilizer bar support 15 is connected to the lower side of the axle housing assembly 1 and is located on one side of the shock absorber support 6, and a stabilizer bar 16 is installed on the stabilizer bar support 15. This has the function of stabilizing the entire axle housing.

[0039] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0040] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0041] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An air bag suspension electric drive axle cast axle housing characterized by, include: The axle housing assembly (1), half sleeve sleeve (2), rear cover (3), V-type thrust rod support (4), longitudinal thrust rod support (5), shock absorber support (6), and airbag support (7) are all installed on both sides of the axle housing assembly (1). The rear cover (3) is provided on the rear side of the axle housing assembly (1). The upper side of the axle housing assembly (1) is equipped with a V-type thrust rod support (4), and the lower side is equipped with a longitudinal thrust rod support (5) and a shock absorber support (6). The half sleeve sleeve (2), rear cover (3), V-type thrust rod support (4), longitudinal thrust rod support (5), shock absorber support (6), and airbag support (7) are all integrally cast with the axle housing assembly (1).

2. The cast axle housing for a gas-charged suspension electric drive axle of claim 1, wherein, The wheel end assembly (18) is mounted on the sleeve sleeve (2).

3. The air spring suspension electric drive axle cast axle housing of claim 1 or 2, wherein, A flange (17) is provided on one side of the sleeve sleeve (2), and a brake assembly (8) is detachably connected to the flange (17).

4. The cast axle housing of an air bag suspension electric drive axle according to claim 1, characterized in that, The V-shaped thrust rod support (4) has an installation clamp, and the V-shaped thrust rod assembly (9) is installed on the installation clamp.

5. The cast axle housing of an air bag suspension electric drive axle according to claim 1, characterized in that, A through hole is provided on the longitudinal thrust rod support (5), and a longitudinal thrust rod assembly (10) is provided on the through hole.

6. The cast axle housing for a gas-charged suspension electric drive axle of claim 1, wherein, A through hole is provided on the damper support (6), and a damper assembly (11) is provided on the through hole.

7. The cast axle housing of an air bag suspension electric drive axle according to claim 1, characterized in that, The airbag support (7) has a threaded hole, and the airbag assembly (12) is installed on the threaded hole.

8. The cast axle housing of an air bag suspension electric drive axle according to claim 1, characterized in that, The front side of the axle housing assembly (1) is provided with an electric drive system assembly mounting surface (13), and the electric drive system assembly (14) is mounted on the electric drive system assembly mounting surface (13).

9. The cast axle housing of an air bag suspension electric drive axle according to claim 1, characterized in that, The bridge housing assembly (1) is connected to a stabilizer bar support (15) on the lower side and is located on the side of the damper support (6).

10. The air spring suspension electric drive axle cast bell housing of claim 9, wherein, A stabilizer bar (16) is mounted on the stabilizer bar support (15).