Aluminum alloy rear axle housing structure of vehicle

Abstract

The aluminum alloy rear axle housing structure of the vehicle comprises a rear axle housing, the two ends of the rear axle housing are connected with a first axle housing port and a second axle housing port respectively, a mounting cavity is formed in the middle of the rear axle housing, a wear-resisting pad is arranged in the mounting cavity, and a plurality of connecting bent plates are arranged at the connecting positions of the first axle housing port and the rear axle housing and the connecting positions of the second axle housing port and the rear axle housing. An empty groove is formed in the connecting bent plate, a plurality of first reinforcing rib plates and a plurality of second reinforcing rib plates are connected in the empty groove, and the connecting bent plate is fixedly screwed with each component through a plurality of first bolts, so that the connecting strength between the first axle housing port and the rear axle housing as well as between the second axle housing port and the rear axle housing is further enhanced, and the stress at the connecting part is more effectively dispersed; meanwhile, the first reinforcing rib plates and the second reinforcing rib plates which are arranged in the connecting bent plates in a staggered mode to form the latticed shape further enhance the structural strength of the connecting bent plates, so that the connecting positions can be kept stable, and the risk of breakage caused by stress concentration is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rear axle housing technical field, concretely relates to an aluminium alloy rear axle housing structure of vehicle. BACKGROUND

[0002] The automobile rear axle housing is an important component of the automobile, which, together with the main reducer, differential and wheel transmission device, forms a drive axle, and the rear axle housing not only supports the weight of the automobile, but also transmits the load to the wheels, and also bears the reaction force and reaction torque of the traction force, braking force, lateral force and vertical force transmitted by the driving wheels, and transmits the reaction force to the frame or body through the suspension.

[0003] In the prior art, during the daily driving of the automobile, the connecting part of the rear axle housing needs to bear complex alternating stress from all directions, including the impact force generated during the starting, accelerating, braking, turning and driving on different road conditions of the vehicle, and since the connecting part of the rear axle housing and the axle housing port is welded, stress concentration phenomenon is more likely to occur, so that the connecting part becomes a weak link of the entire rear axle housing structure, and during long-term use, fatigue cracks are easily generated and gradually expanded at the connecting part, eventually causing a fracture accident and affecting the normal use of the automobile. SUMMARY

[0004] The utility model discloses a kind of aluminium alloy rear axle housing structures of vehicle, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: an aluminium alloy rear axle housing structure of vehicle, comprising:

[0006] The rear axle housing is connected with the first axle housing port and the second axle housing port at two ends respectively, a mounting cavity is arranged in the middle of the rear axle housing, and a wear-resistant pad is arranged in the mounting cavity; a plurality of connecting curved plates for strengthening the connection strength are arranged at the connecting part of the first axle housing port, the second axle housing port and the rear axle housing; a plurality of first reinforcing rib plates and a plurality of second reinforcing rib plates are connected in the connecting curved plate, and the plurality of first reinforcing rib plates and the plurality of second reinforcing rib plates are arranged in a grid shape by being staggered with each other.

[0007] Preferably, the connecting curved plate is fixedly connected with the rear axle housing, the first axle housing port and the second axle housing port by a plurality of first bolts.

[0008] Preferably, a protective curved plate is arranged at the bottom of the rear axle housing, and the protective curved plate is fixedly connected with the rear axle housing and the connecting curved plate by a plurality of second bolts.

[0009] Preferably, a reinforcing plate is arranged between the rear axle housing and the wear-resistant pad, and the reinforcing plate is an aluminium alloy plate.

[0010] Preferably, the wear-resistant pad surface is annularly connected with a plurality of anti-skid protrusions.

[0011] Preferably, the first axle housing port and the second axle housing port are both connected with a fixing plate, and the fixing plate is provided with a mounting hole.

[0012] Preferably, the rear axle housing, the first axle housing port, the second axle housing port, the connecting curved plate and the protective curved plate are all made of aluminum alloy.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The connecting curved plate is arranged at the connecting position of the first axle housing port, the second axle housing port and the rear axle housing, and the connecting curved plate is fixedly connected with each component through a plurality of first bolts, so that the connecting strength of the first axle housing port, the second axle housing port and the rear axle housing is further strengthened, the stress at the connecting position is more effectively dispersed, the stress concentration phenomenon is avoided, meanwhile, the first reinforcing rib plate and the second reinforcing rib plate which are arranged in a grid shape in the connecting curved plate further enhance the structural strength of the connecting curved plate, so that the connecting position can be kept stable, and the risk of fracture caused by stress concentration is greatly reduced.

[0015] (2) The protective curved plate arranged at the bottom of the rear axle housing is fixedly connected with the rear axle housing and the connecting curved plate through a second bolt, so that additional protection is provided for the bottom of the rear axle housing, in the process of vehicle driving, the protective curved plate can effectively block the impact and scratching of sand, stones and sundries from the road surface on the rear axle housing, prevent the surface of the rear axle housing from being damaged, avoid affecting the integrity and performance of the internal structure due to the damage of the shell, and further improve the stability of the structure of the rear axle housing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model;

[0017] Fig. 2 It is a structural schematic view of the connecting curved plate of the utility model;

[0018] Fig. 3 It is a sectional view of the rear axle housing of the utility model.

[0019] In the drawing: 1, rear axle housing; 2, first axle housing port; 3, second axle housing port; 4, mounting cavity; 5, wear-resistant pad; 6, connecting curved plate; 7, hollow groove; 8, first reinforcing rib plate; 9, second reinforcing rib plate; 10, first bolt; 11, protective curved plate; 12, second bolt; 13, reinforcing plate; 14, anti-skid protrusion; 15, fixing plate; 16, mounting hole. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0021] The utility model provides a kind of aluminum alloy rear axle housing structure of vehicle as Figs. 1-3 As shown in a kind of aluminum alloy rear axle housing structure of vehicle, comprising:

[0022] Rear axle housing 1, the two ends of the rear axle housing 1 are connected with first axle housing port 2 and second axle housing port 3 respectively, the middle part of the rear axle housing 1 is equipped with installation cavity 4 and is equipped with wear pad 5 in installation cavity 4, the connecting place of first axle housing port 2 and second axle housing port 3 with rear axle housing 1 is equipped with a plurality of connecting curved plates 6 for strengthening connection strength, the connecting curved plate 6 is equipped with air slot 7, a plurality of first reinforcing rib plates 8 and a plurality of second reinforcing rib plates 9 are connected in air slot 7, a plurality of first reinforcing rib plates 8 and a plurality of second reinforcing rib plates 9 are arranged into grid shape by interlacing each other.

[0023] The connecting curved plate 6 is fixed by screwing with rear axle housing 1, first axle housing port 2, second axle housing port 3 through a plurality of first bolts 10.

[0024] The bottom of the rear axle housing 1 is equipped with protective curved plate 11, the protective curved plate 11 is fixed by screwing with rear axle housing 1 and connecting curved plate 6 through a plurality of second bolts 12.

[0025] The reinforcing plate 13 is aluminum alloy plate, and the aluminum alloy material has high strength and rigidity. The reinforcing plate 13 can enhance the overall rigidity of the rear axle housing 1, so that the rear axle housing 1 can better maintain its shape and structural stability when bearing complex load.

[0026] The wear pad 5 is connected with a plurality of anti-skid bosses 14 in a ring shape on the surface, and the anti-skid bosses 14 can increase the friction force of the contact surface of the components to ensure the relative stability between the components.

[0027] The first axle housing port 2 and the second axle housing port 3 are both connected with a fixing plate 15 on the surface, the fixing plate 15 is provided with a mounting hole 16 on the surface, and the mounting hole 16 can provide a connection mode for the rear axle housing 1, so that the rear axle housing 1 is connected to the vehicle body through the mounting hole 16.

[0028] The rear axle housing 1, the first axle housing port 2, the second axle housing port 3, the connecting curved plate 6 and the protective curved plate 11 are all made of aluminum alloy material. The components made of aluminum alloy material work together to realize lightweight design under the premise of ensuring structural strength by utilizing the good mechanical properties of aluminum alloy.

[0029] The aluminum alloy rear axle housing structure of the vehicle, when the vehicle is subjected to various loads during driving, the forces are transmitted to the first axle housing port 2 and the second axle housing port 3 through the rear axle housing 1, and then transmitted to the frame or the body through the suspension, and the connecting curved plate 6 plays a key role in this process, which is tightly connected with each component through bolts, and uniformly disperses the force to the entire rear axle housing 1 structure, and the grid-shaped first reinforcing rib plate 8 and the second reinforcing rib plate 9 in the connecting curved plate 6 further enhance the load-bearing capacity of the connecting curved plate 6, so that the force can be more effectively transmitted between components, avoiding local stress too large to cause structural damage,

[0030] The wear-resistant pad 5 made of rubber in the mounting cavity 4 and the anti-skid bumps 14 on the surface thereof contact other related components, and when the components move relative to each other, the wear-resistant pad 5 plays a role in reducing friction, and the anti-skid bumps 14 ensure that the relative position relationship between the components is stable by increasing the friction force with the contact surface, preventing additional wear caused by sliding, thereby ensuring the reliability and stability of the rear axle housing 1 structure in long-term operation, and reducing the hidden troubles caused by wear.

[0031] The protective curved plate 11 is located at the bottom of the rear axle housing 1, and when the vehicle drives on complex road conditions, such as encountering flying sand and stones, road protrusions and the like, the protective curved plate 11 can first bear the impact and scratching, which is firmly connected to the rear axle housing 1 and the connecting curved plate 6 through bolts, disperses the external force to the entire protective structure, avoids the direct action of the external force on the rear axle housing 1 body, thereby protecting the rear axle housing 1 from damage, maintaining the normal working state of the internal structure of the rear axle housing 1, and ensuring the safe driving of the vehicle.

[0032] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. An aluminum alloy rear axle housing structure of a vehicle, characterized by, Include: The rear axle housing (1), the first axle housing port (2) and the second axle housing port (3) are connected at both ends of the rear axle housing (1), respectively, the middle part of the rear axle housing (1) is provided with a mounting cavity (4), and the mounting cavity (4) is provided with a wear pad (5), the connecting curved plate (6) for strengthening the connection strength is arranged at the connection between the first axle housing port (2) and the second axle housing port (3) and the rear axle housing (1), the connecting curved plate (6) is provided with a hollow groove (7), the hollow groove (7) is connected with a plurality of first reinforcing rib plates (8) and a plurality of second reinforcing rib plates (9), the plurality of first reinforcing rib plates (8) and the plurality of second reinforcing rib plates (9) are arranged in a grid shape by being staggered with each other.

2. The aluminum alloy rear axle housing structure of a vehicle of claim 1, wherein: The connecting curved plate (6) is fixedly connected with the rear axle housing (1), the first axle housing port (2) and the second axle housing port (3) by a plurality of first bolts (10).

3. The aluminum alloy rear axle housing structure of a vehicle of claim 1, wherein: The bottom of the rear axle housing (1) is provided with a protective curved plate (11), the protective curved plate (11) is fixedly connected with the rear axle housing (1) and the connecting curved plate (6) by a plurality of second bolts (12).

4. The aluminum alloy rear axle housing structure of a vehicle of claim 1 wherein: The rear axle housing (1) and the wear pad (5) are provided with a reinforcing plate (13), the reinforcing plate (13) is an aluminum alloy plate.

5. The aluminum alloy rear axle housing structure of a vehicle of claim 1 wherein: The surface of the wear pad (5) is annularly connected with a plurality of anti-skid bosses (14).

6. The aluminum alloy rear axle housing structure of a vehicle of claim 1 wherein: The surface of the first axle housing port (2) and the second axle housing port (3) is connected with a fixing plate (15), and the surface of the fixing plate (15) is provided with a mounting hole (16).

7. The aluminum alloy rear axle housing structure of a vehicle of claim 3, wherein: The rear axle housing (1), the first axle housing port (2), the second axle housing port (3), the connecting curved plate (6) and the protective curved plate (11) are all made of aluminum alloy.

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