CN218171912U - Rear axle beam assembly - Google Patents

Abstract

The utility model discloses a rear axle crossbeam assembly, including the end plate, the end plate respectively with two end connection of rear axle crossbeam subassembly, rear axle crossbeam subassembly include the bridge pipe and set up in the linking bridge at bridge pipe both ends, be provided with the lightening hole on the end plate, follow the upper end of lightening hole extend to both sides and form can with bridge pipe complex welding reservation portion, through extend to both sides along the upper end of lightening hole and form can with bridge pipe complex welding reservation portion through adjusting the hookup location of bridge pipe and end plate to welding reservation portion position department, cancel the hookup location on the inboard bridge pipe of linking bridge, enable the end plate through welding reservation portion and bridge pipe welding, can effectively control toe-in camber value, cancel the machining after the welding, reduce the input of machining process and machining equipment, effective reduce cost.

Description

Rear axle beam assembly

Technical Field

The utility model relates to an automobile chassis technical field especially relates to a rear axle crossbeam assembly.

Background

The rear axle beam is used as an important structure of the automobile rear axle, and the stability and various performances of the connecting structure are particularly critical. At present, the traditional rear axle beam can only play a supporting role, rear axle parts need to be connected to the rear axle through some corresponding connecting structures, the manufacturing and mounting processes are complex, the weight is heavier, and the integration of the automobile is not facilitated.

In the prior art, many improvements are made to the above existing technical problems, for example, the patent numbers are: CN201821347858.5, patent name: the Chinese patent application of the commercial vehicle rear axle beam assembly discloses a commercial vehicle rear axle beam assembly, which comprises a bridge pipe, wherein two end parts of the bridge pipe are respectively and fixedly connected with a rear axle end plate and are supported by a connecting support in a reinforcing way, the rear axle end plate comprises a lightening hole, a caliper mounting surface, a first mounting surface, a second mounting surface, a third limiting surface and a fourth mounting surface, through the structure, when the rear axle end plate integrates mounting surfaces of all parts, a square tube structure is adopted to be fixed with the rear axle end plate in a welding way, the middle shaft of the bridge pipe is reduced in comparison with the vertical position of the middle shaft of a mandrel, and the two parts are welded with the connecting support to form a stable triangular structure to increase the strength, so that the space in a vehicle is optimized and improved, the mandrel can be disassembled, the maintenance cost is effectively reduced, the whole rear axle beam assembly integrates rich functions except bearing, and the adaptability is better.

However, the welding of the connecting support can be completed after the bridge pipe and the end plate are welded into a whole, otherwise, the welding position of the bridge pipe and the end plate can be shielded after the welding of the connecting support is completed, the toe-in camber value of the rear axle can be changed due to welding deformation in the welding process of the connecting support, and the toe-in camber value is ensured by machining after the welding is completed, so that the machining efficiency and the qualification rate are low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to prior art, provide one kind can reduce the machine tooling process and the machine tooling equipment drops into, reduce cost's a rear axle crossbeam assembly by a wide margin.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a rear axle crossbeam assembly, includes the end plate, the end plate respectively with two end connection of rear axle crossbeam subassembly, rear axle crossbeam subassembly include the bridge pipe and set up in the linking bridge at bridge pipe both ends, be provided with the lightening hole on the end plate, follow the upper end of lightening hole extend to both sides and form can with bridge pipe complex welding reservation portion, through adjusting the hookup location of bridge pipe and end plate to welding reservation portion position department, cancel the hookup location on the inboard bridge pipe of linking bridge, enable the end plate and pass through welding reservation portion and bridge pipe welding, can the effective control toe-in camber value, cancel the machining after the welding, reduce the machining process and the machining equipment input, effective reduce cost.

Among the above-mentioned technical scheme, welding reservation portion is including making the first welding reservation portion that the bridge pipe shows and right the spacing second welding reservation portion of bridge pipe, first welding reservation portion position department can show the bridge pipe for the bridge pipe can realize the welding with the end plate at the outer terminal surface of end plate, and second welding reservation portion can be spacing to the last top surface of bridge pipe simultaneously, can guarantee effective welding.

In the technical scheme, the bead of the first welding reserved part is flush with the bead on the end surface of the bridge pipe.

In the above technical scheme, the second welding reserved part is a boss protruding from the inner end face of the end plate.

In the technical scheme, the connecting support is provided with the connecting part for connecting the bridge pipe and the end plate.

In the above technical solution, the connecting portion includes a bridge pipe connecting portion and an end plate connecting portion.

In the above technical scheme, the bridge pipe connecting portion includes a first connecting portion arranged in the middle at the rear end of the connecting bracket and a second connecting portion symmetrically arranged at two sides of the rear end of the connecting bracket.

In the above technical scheme, the end plate connecting portion include the third connecting portion that set up in the middle in the linking bridge front end and the symmetry set up in the fourth connecting portion of linking bridge front end both sides.

Among the above-mentioned technical scheme, rear axle crossbeam subassembly include with plate spring seat, bumper shock absorber support buffer block seat that the bridge tube is connected can improve integrating of rear axle back beam.

In the above technical scheme, the end plate includes an upper mounting portion and a lower mounting portion, the lightening hole set up in lower mounting portion position department.

Compared with the prior art, the method has the following beneficial effects: through extending to both sides along the upper end of lightening hole and forming can with bridge pipe complex welding reservation portion, through adjusting the hookup location of bridge pipe and end plate to welding reservation portion position department, cancel the hookup location on the inboard bridge pipe of linking bridge, enable the end plate and pass through welding reservation portion and bridge pipe welding, can effectively control toe-in camber value, cancel the machining after the welding, reduce machining process and machining equipment and drop into, effective reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of the outer side surface of the end plate.

Fig. 4 is a schematic view of the inner side surface of the end plate.

Fig. 5 is a schematic view of the connecting bracket structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The following description is provided to disclose the invention and to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other aspects without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for ease of simplifying the description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 5, a rear axle beam assembly includes two end plates 1, which are oppositely disposed at two ends of a rear axle beam subassembly 2. A plurality of mounting positions are reserved on the end plate 1 and the rear axle beam subassembly 2 and can be used for connecting rear axle parts, and the rear axle beam subassembly 2 comprises a bridge pipe 21 and connecting supports 22 arranged at two ends of the bridge pipe 21.

The upper part of the connecting bracket 22 is of a U-shaped bending structure, the lower part of the connecting bracket is of a branched structure, an end plate connecting part 222 is arranged at the position of the U-shaped bending structure, and a bridge pipe connecting part 221 is arranged at the position of the branched structure.

The bridge pipe connection part 221 includes a first connection part 221a centrally disposed at the rear end of the connection bracket 22, i.e., at the transition position of the two-forked structure, and a second connection part 221b disposed at the downward arc surface of the symmetrical two-forked structure, forming a three-point arrangement, so as to be able to more stably connect with the bridge pipe 21.

The end plate connecting portion 222 includes a third connecting portion 222a disposed at the front end along the center of the bending portion, i.e. toward the side of the end plate 1, and a fourth connecting portion 222b is disposed on two bending edges of the connecting bracket 22 symmetrically to the third connecting portion 222 a.

Two end plates 1 are consistent in structure and respectively comprise an upper installation part 1a and a lower installation part 1b, a lightening hole 11 is arranged at the position of the lower installation part 1b, the upper end of the lightening hole 11 extends to two sides to form a welding reserved part capable of being matched with a bridge pipe 21, and the welding reserved part comprises a first welding reserved part 121 capable of enabling the bridge pipe 21 to be exposed and a second welding reserved part 122 capable of limiting the bridge pipe

End plate 1 includes outer terminal surface and interior terminal surface, and first welding reservation portion 121 is located outer terminal surface, belongs to the notch structure, and the bead of first welding reservation portion 121 flushes with bead position on the terminal surface of bridge tube 21, like this, can make the terminal surface of bridge tube 21 appear out from first welding reservation portion 121 position department, when the welding, can directly make it be connected with the bridge tube through first welding reservation portion 121.

Second welding reservation portion 122 sets up on the terminal surface including, for the boss structure of protrusion in end plate 1 terminal surface setting, when the bridge pipe 21 is connected with end plate 1, sets up spacing boss above bridge pipe 21, can guarantee the effective connection between bridge pipe 21 and the end plate 1, makes the structure more stable, improves product precision and product percent of pass.

Obviously, a plurality of installation positions are reserved on each rear axle beam subassembly 2 and can be used for installing rear axle parts including the plate spring seat 23, the shock absorber support buffer block seat 24 and the like so as to improve the adaptability and integration of the rear axle beam.

Above-mentioned technical scheme, make the terminal surface of bridge pipe 21 show from first welding reservation 121 position department through first welding reservation 121, can make end plate and bridge pipe 21 accomplish the welding through first welding reservation 121, this just need not weld through end plate inner end and bridge pipe junction position, this welding order of linking bridge has just been optimized, can be in advance with linking bridge and bridge pipe welding completion back, accomplish the welding with rear axle crossbeam subassembly 2 after the combination with end plate 1, thus, the problem that the welding seam welding deformation is big between linking bridge upper portion and the end plate has been avoided, not only rigidity, fatigue, intensity all can effectively be improved, and above all, this scheme can accomplish the processing of work piece efficiently, reduce machining process and machining equipment input, the cost of manufacture is reduced by a wide margin when improving standardized installation flow.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the invention have been shown and described in the embodiments, and any variations or modifications of the embodiments of the invention are possible without departing from the principles.

Claims (10)

1. The rear axle beam assembly comprises an end plate (1) and is characterized in that the end plate (1) is connected with two end portions of a rear axle beam sub-assembly (2) respectively, the rear axle beam sub-assembly (2) comprises a bridge pipe (21) and connecting supports (22) arranged at two ends of the bridge pipe (21), weight reducing holes (11) are formed in the end plate (1), and welding reserved portions capable of being matched with the bridge pipe (21) are formed by extending towards two sides along the upper ends of the weight reducing holes (11).

2. A rear axle cross-member assembly according to claim 1, wherein the welding preparation comprises a first welding preparation (121) enabling the emergence of the axle tube (21) and a second welding preparation (122) limiting the axle tube.

3. A rear axle beam assembly according to claim 2, characterised in that the bead of the first weld reserve (121) is flush with the bead position on the end face of the axle tube (21).

4. A rear axle transverse beam assembly according to claim 3, characterized in that the second welding reservation (122) is a boss protruding from the inner end face of the end plate (1).

5. A rear axle beam assembly according to claim 1, characterised in that the connecting bracket (22) is provided with a connecting portion.

6. A rear axle beam assembly according to claim 5, wherein the connections comprise a bridge tube connection (221) and an end plate connection (222).

7. A rear axle beam assembly according to claim 6, wherein the bridge tube connection portions (221) comprise a first connection portion (221 a) centrally arranged at the rear end of the connection bracket (22) and a second connection portion (221 b) symmetrically arranged at both sides of the rear end of the connection bracket.

8. A rear axle beam assembly according to claim 6, wherein the end plate connection portions (222) comprise a third connection portion (222 a) centrally disposed at the front end of the connecting bracket (22) and a fourth connection portion (222 b) symmetrically disposed at both sides of the front end of the connecting bracket (22).

9. A rear axle beam sub-assembly according to claim 1, characterised in that the rear axle beam sub-assembly (2) comprises a plate spring seat (23), a shock absorber support cushion block seat (24) connected with the axle tube (21).

10. A rear axle beam assembly according to claim 1, characterized in that the end plate (1) comprises an upper mounting portion (1 a) and a lower mounting portion (1 b), and that lightening holes (11) are provided at the location of the lower mounting portion (1 b).

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