Supporting plate and axle housing assembly made of supporting plate

Abstract

The utility model belongs to the technical field of automobile parts, and particularly relates to a supporting plate and an axle housing assembly made of the supporting plate. A supporting plate is in an integrally-formed L shape and comprises a vertical plate and a bottom plate, the inner side face of the vertical plate and the upper surface of the bottom plate are machining faces and used for being attached to the side face of an axle housing body, and U-shaped grooves B are formed in the upper edge and the edges of the left side and the right side of the vertical plate and used for assembling U-shaped bolts between a suspension and an axle housing assembly. Compared with the prior art, the utility model has the technical effects that the L-shaped connecting structure is welded on the lower bottom surface, the left side surface and the right side surface of the axle housing assembly, and does not depend on the upper surface of the axle housing assembly any more, so that the requirements of vehicle development are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and particularly relates to a supporting plate and a made bridge housing assembly. BACKGROUND

[0002] The drive axle is one of the core components of an automobile and is connected to the vehicle body through a suspension. The drive axle is generally composed of a bridge housing assembly, a main speed reducer (including a differential), a half shaft, a brake, etc. and has the functions of load bearing, torque transmission and braking. The bridge housing assembly can be divided into two types, i.e. an integral type and a sectional type, in terms of structure. At present, the integral type is mostly used in commercial vehicles. The bridge housing assembly can also be divided into two types, i.e. a punch-welding type and a casting type, in terms of process. The punch-welding type of bridge housing assembly is light in weight and has wide adaptability, and has been widely used.

[0003] The commercial vehicle suspension is generally connected to the bridge housing assembly through a U-shaped bolt. On both sides of the bridge housing assembly, upper and lower supporting plates are welded to fix the U-shaped bolt. The upper and lower supporting plates are provided with clamping grooves on both sides to be clamped on the front and rear sides of the bridge housing body and welded together with the bridge housing body. SUMMARY

[0004] The utility model solves the technical problem that, with the development of fast running of commercial vehicles, the vehicle unladen mass is reduced, the vehicle freight / passenger space is improved, and the layout of the axle is challenged. The demand that the upper supporting plate of the bridge housing assembly is not allowed to be welded has appeared. The position needs to be given to the suspension operating space and finally improve the use of the vehicle interior space.

[0005] The technical scheme of the utility model is specifically as follows:

[0006] A supporting plate is integrally formed in an L shape and includes a vertical plate and a bottom plate. The inner side surface of the vertical plate and the upper surface of the bottom plate are machined surfaces for abutting the side surface of the bridge housing body. A U-shaped groove B is arranged along the upper edge and the left and right edges of the vertical plate and is used for assembling the U-shaped bolt between the suspension and the bridge housing assembly.

[0007] A weight-reducing hole is arranged in the central area of the vertical plate.

[0008] A transverse groove A is arranged on the inner side surface of the vertical plate.

[0009] A transverse groove C is arranged at the connection between the inner side surface of the vertical plate and the upper surface of the bottom plate.

[0010] The lower surface of the bottom plate is a machined surface.

[0011] The outer side surface of the bottom plate is a machined surface and includes a vertical outer side surface upper part and an inwardly inclined outer side surface lower part.

[0012] A positioning pin hole is arranged on the bottom plate.

[0013] Two weight-reducing grooves are arranged on the bottom plate.

[0014] The support plate is made of cast steel or forged.

[0015] The four identical support plates are welded on the axle housing body, and the inner side of the vertical plate is welded on the left and right sides of the axle housing body, and the upper surface of the bottom plate is welded on the lower bottom surface of the axle housing body.

[0016] Compared with the prior art, the utility model discloses a L-shaped support plate which is welded on the lower bottom surface and the left and right sides of the axle housing assembly, and no longer depends on the upper surface of the axle housing assembly, thereby meeting the needs of vehicle development. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-view schematic diagram of the utility model.

[0018] Figure 2 It is the three-view schematic diagram of the utility model.

[0019] Figure 3 It is the schematic diagram of the axle housing assembly. DETAILED DESCRIPTION

[0020] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0021] As Figures 1-2 A support plate is integrally formed in an L shape and includes a vertical plate 10 and a bottom plate 20. The inner side 14 of the vertical plate 10 and the upper surface 21 of the bottom plate 20 are machined surfaces for abutting the side surface of the axle housing body.

[0022] U-shaped grooves B13 are provided along the upper edge 12 and the left and right edges of the vertical plate 10 for assembling U-shaped bolts between the suspension and the axle housing assembly. The upper surface ensures good abutment with the U-shaped bolts, and the side surface allows for slight adjustment.

[0023] An oval weight-reducing hole 11 is provided in the central region of the vertical plate 10 for plug welding on the axle housing body and is welded on the axle housing body along the upper edge 12 and the left and right edges of the vertical plate 10.

[0024] To ensure good abutment with the axle housing body, the inner side 14 of the vertical plate 10 is provided with a transverse groove A15 to avoid the longitudinal weld seam of the axle housing body and significantly reduce the stress at this location.

[0025] A transverse groove C16 is provided at the connection between the inner side 14 of the vertical plate 10 and the upper surface 21 of the bottom plate 20, which mainly serves as a tool withdrawal groove for the machined inner side 14 of the vertical plate 10 and the upper surface 21 of the bottom plate 20. At the same time, it can avoid interference with the circular arc of the axle housing and significantly reduce the stress at this location.

[0026] The lower surface 23 of the bottom plate 20 is a machined surface for assembling the suspension and ensuring good fit.

[0027] The outer side surface (the surface farthest from the vertical plate 10) of the bottom plate 20 is a machined surface, including a vertical outer side surface upper portion 22 and an inwardly inclined outer side surface lower portion 24, to ensure the consistency of the gap between the two bracket plates welded on both sides of the axle housing.

[0028] The bottom plate 20 is provided with a positioning pin hole 25, which is machined before or after welding according to the process practice, and is used for assembling the suspension and ensuring accurate positioning; the bottom plate 20 is provided with two weight reduction grooves 26, which realize weight reduction and also reduce the amount of machining.

[0029] The bracket plate is made of weldable cast steel such as ZG270-480H, or is forged from 35 steel.

[0030] An axle housing assembly, the axle housing body 30 is welded with the above four identical bracket plates, the bracket plates are symmetrically welded on the left, right, front and rear corresponding positions of the axle housing body 30, wherein the inner side surface 14 of the vertical plate 10 is welded on the left and right side surfaces of the axle housing body 30, and the upper surface 21 of the bottom plate 20 is welded on the lower bottom surface of the axle housing body 30.

[0031] Among them, the welding adopts inner side circumferential welding and outer side corner welding process, which ensures the connection strength.

[0032] The working principle is as follows:

[0033] S1, machining the bracket plate: the bracket plate is made of weldable cast steel such as ZG270-480H, or is forged from 35 steel.

[0034] S2, welding the bracket plate: four identical bracket plates are symmetrically welded on the left, right, front and rear corresponding positions of the axle housing body 30, wherein the inner side surface 14 of the vertical plate 10 is welded on the left and right side surfaces of the axle housing body 30, and the upper surface 21 of the bottom plate 20 is welded on the lower bottom surface of the axle housing body 30.

[0035] The characteristics of the present application are:

[0036] 1. The present application saves the space occupied by the bracket plate on the existing axle housing structure, and solves the space problem.

[0037] 2. The present application can ensure good fit with the front and rear side surfaces of the axle housing body and the lower surface, and has high reliability after welding, avoiding problems such as opening and tearing in actual application.

[0038] 3. The present application has lighter weight and lower cost.

[0039] Other contents refer to the prior art.

[0040] The above only is the preferred, implementation mode of the utility model, it should be pointed out that, for the person skilled in the art, without departing from the overall concept of the utility model, can also make several changes and improvements, these also should be regarded as the protection scope of the utility model.

Claims

1. A pallet characterised by: It is an integral L-shaped, including vertical plate (10) and bottom plate (20), the inner side (14) of vertical plate (10) and the upper surface (21) of bottom plate (20) are machined surfaces, used to fit with the side surface of axle housing body, along the upper edge (12) of vertical plate (10), the edges of left and right sides are provided with U-shaped groove B (13), used to assemble U-shaped bolt between suspension and axle housing assembly.

2. The pallet of claim 1, wherein: The center area of vertical plate (10) is provided with weight-reducing hole (11).

3. The pallet of claim 2, wherein: The inner side (14) of vertical plate (10) is provided with transverse groove A (15).

4. The pallet of claim 3, wherein: The connecting part of inner side (14) of vertical plate (10) and upper surface (21) of bottom plate (20) is provided with transverse groove C (16).

5. The pallet of claim 4 wherein: The lower surface (23) of bottom plate (20) is a machined surface.

6. The pallet of claim 5 wherein: The outer side of bottom plate (20) is a machined surface, including vertical outer side upper part (22) and inwardly inclined outer side lower part (24).

7. The pallet of claim 6 wherein: Bottom plate (20) is provided with positioning pin hole (25).

8. The pallet of claim 7, wherein: Bottom plate (20) is provided with two weight-reducing grooves (26).

9. The pallet of claim 8, wherein: The support plate can be casted or forged from weldable cast steel.

10. An axle housing assembly characterized by: Four identical support plates as claimed in claim 1 are welded on axle housing body (30), the support plates are symmetrically welded on the left, right, front and rear corresponding positions of axle housing body (30), wherein the inner side (14) of vertical plate (10) is welded on the left and right side surfaces of axle housing body (30), and the upper surface (21) of bottom plate (20) is welded on the lower bottom surface of axle housing body (30).

Images