A spring arm mounting crossbeam for a rear auxiliary frame of an automobile

Abstract

The invention belongs to the technical field of vehicle accessories, and specifically is a spring arm mounting crossbeam of a rear sub-frame of an automobile, comprising a fastener and a mounting crossbeam, wherein a rear crossbeam is fixedly mounted on the top of the fastener, and the mounting crossbeam is clipped on the bottom of the fastener, and the mounting crossbeam is fixedly connected to the front side wall of the fastener by bolts, and the front side wall of the rear crossbeam is fixedly connected to a left longitudinal beam and a right longitudinal beam by bolts, and the bottoms of the left longitudinal beam and the right longitudinal beam are fixedly connected to the front crossbeam by bolts. The spring arm mounting crossbeam of the rear sub-frame of an automobile is designed to mount the crossbeam at the mounting point of the spring arm through the combined use of accessories, and is clipped with the fastener and then fixed with bolts, and then the independently arranged mounting crossbeam is connected to the rear crossbeam by using the support plate of the fastener, and is supported by an inclined frame, so as to meet the static stiffness requirements of the spring arm and the mounting point of the rear lower swing arm, and effectively ensure the stability and service life of the suspension system.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle accessories, in particular to a spring arm mounting cross beam for a rear auxiliary frame of an automobile. Background Art

[0002] A car is a power-driven, non-track-borne vehicle with four or more wheels, mainly used for: carrying people and goods; towing vehicles carrying people and goods; and for special purposes.

[0003] At present, in the automotive field, rear suspension systems can be mainly divided into two categories: non-independent suspension / semi-independent suspension structure and independent suspension structure. Among them, the independent suspension system is widely used due to its excellent comfort and smoothness. It is mostly composed of a rear subframe and various connecting rods. Among them, the various performances of the rear subframe of the rear suspension will be decomposed into the subframe by major OEMs in the early stage of the project according to the various requirements of the whole vehicle. Static stiffness is also an important goal.

[0004] At present, the automotive industry mostly adopts universal technical standards, among which the static stiffness performance target of the spring arm mounting point (50 or 60 in the Y direction) is higher than that of other assembly points (mostly 30 in the Y direction). However, in the current mainstream rear subframe design structure, the static stiffness of the spring arm mounting point is mostly difficult to meet this requirement, and the use effect is poor. Summary of the invention

[0005] The object of the present invention is to provide a spring arm mounting cross beam for a rear subframe of an automobile, so as to solve the problem mentioned in the above background technology that the current automobile industry mostly adopts general technical standards, wherein the static stiffness performance target of the spring arm mounting point (50 or 60 in the Y direction) is higher than the targets of other assembly points (mostly 30 in the Y direction), but in the current mainstream rear subframe design structure, the static stiffness of the spring arm mounting point is mostly difficult to meet this requirement, resulting in poor use effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a spring arm mounting crossbeam of a rear subframe of an automobile, comprising a fastener and a mounting crossbeam, the top of the fastener is fixedly mounted with a rear crossbeam, the bottom of the fastener is clamped with the mounting crossbeam, the mounting crossbeam is fixedly connected to the front side wall of the fastener by bolts, the front side wall of the rear crossbeam is fixedly connected with a left longitudinal beam and a right longitudinal beam by bolts, the bottoms of the left longitudinal beam and the right longitudinal beam are fixedly connected with the front crossbeam by bolts, the front side wall of the fastener is integrally formed with buckle teeth and connected, the rear side wall of the fastener is welded with a support plate, the top of the support plate is threadedly connected with a support plate bolt, the bottom of the fastener is welded with an oblique frame, the bottom of the oblique frame is welded to the rear side wall of the fastener, the left side wall of the mounting crossbeam is welded with a left side plate, the right side wall of the mounting crossbeam is welded with a right side plate, and the tops of the left side plate and the right side plate are provided with side plate holes.

[0007] Preferably, a rear cross beam main hole and a rear cross beam auxiliary hole are opened on the top of the rear cross beam, and the diameter of the rear cross beam main hole is the same as the diameter of the rear cross beam auxiliary hole.

[0008] Preferably, the top of the left longitudinal beam is fixedly connected to the left longitudinal beam connecting plate by bolts, and the top of the right longitudinal beam is fixedly connected to the right longitudinal beam connecting plate by bolts.

[0009] Preferably, the width of the support plate is the same as the width of the rear cross beam, and the support plate is fixedly connected to the bottom of the rear cross beam via support plate bolts.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the spring arm mounting crossbeam of the rear subframe of the automobile is designed to be mounted at the spring arm mounting point through the combined use of accessories, and is fastened with fasteners and then fixed with bolts, and then the independently arranged mounting crossbeam is connected to the rear crossbeam by using the support plate of the fasteners, and is supported by an inclined frame, so that the static stiffness requirements of the spring arm and the rear lower swing arm mounting point in the Y direction can be met, and the stability and life of the suspension system are effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the position of the present invention;

[0012] Figure 2 This is a schematic diagram of installing a crossbeam according to the present invention;

[0013] Figure 3 Schematic diagram of the fastener of the present invention.

[0014] In the figure: 100 rear cross beam, 101 rear cross beam main hole, 102 rear cross beam auxiliary hole, 200 fastener, 210 buckle, 220 support plate, 230 support plate bolt, 240 diagonal frame, 300 mounting cross beam, 310 left side plate, 320 right side plate, 330 side plate hole, 400 left longitudinal beam, 410 left longitudinal beam connecting plate, 500 front cross beam, 600 right longitudinal beam, 610 right longitudinal beam connecting plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] The present invention provides a spring arm mounting crossbeam for a rear subframe of an automobile, which improves the static stiffness through the combined use of accessories. Figure 1-3 , including a fastener 200 and a mounting beam 300;

[0017] Please refer again Figure 1 The top of the rear cross beam 100 has a rear cross beam main hole 101 and a rear cross beam auxiliary hole 102. Specifically, the top of the rear cross beam 100 is provided with a rear cross beam main hole 101 and a rear cross beam auxiliary hole 102, and the diameter of the rear cross beam main hole 101 is the same as the diameter of the rear cross beam auxiliary hole 102;

[0018] Please refer again Figure 1-3 The top of the fastener 200 is fixedly installed with the top of the rear cross beam 100. Specifically, the top of the fastener 200 is fixedly installed with the rear cross beam 100, the front side wall of the fastener 200 is integrally formed with a buckle tooth 210, the rear side wall of the fastener 200 is welded with a support plate 220, the top of the support plate 220 is threadedly connected with a support plate bolt 230, the bottom of the fastener 200 is welded with an inclined frame 240, and the bottom of the inclined frame 240 is welded with the rear side wall of the fastener 200;

[0019] Please refer again Figure 1-2 The top of the mounting crossbeam 300 is fixedly mounted with the bottom of the fastener 200. Specifically, the bottom of the fastener 200 is buckled with the mounting crossbeam 300, and the mounting crossbeam 300 is fixedly connected with the front side wall of the fastener 200 by bolts. A left side plate 310 is welded to the left side wall of the mounting crossbeam 300, and a right side plate 320 is welded to the right side wall of the mounting crossbeam 300. Side plate holes 330 are opened on the tops of the left side plate 310 and the right side plate 320.

[0020] Please refer again Figure 1 The rear side wall of the left longitudinal beam 400 is fixedly installed with the front side wall of the rear cross beam 100. Specifically, the front side wall of the rear cross beam 100 is fixedly connected with the left longitudinal beam 400 by bolts;

[0021] Please refer again Figure 1 The top of the front cross beam 500 is fixedly installed with the bottom of the left longitudinal beam 400 and the right longitudinal beam 600. Specifically, the bottom of the left longitudinal beam 400 and the right longitudinal beam 600 are fixedly connected with the front cross beam 500 by bolts;

[0022] Please refer again Figure 1 , the rear side wall of the right longitudinal beam 600 is fixedly installed with the front side wall of the rear cross beam 100. Specifically, the front side wall of the rear cross beam 100 is fixedly connected with the right longitudinal beam 600 by bolts;

[0023] During specific use, first use the buckle 210 position of the fastener 200 to embed the installation beam 300, and then fix it with screws to ensure stability. Secondly, make the support plate 220 contact the bottom of the rear beam 100 and fix it with the support plate bolts 230. The support plate 220, the diagonal frame 240 and the fastener 200 form a triangle. The triangle has stability and is convenient for relieving pressure. Then, make the installation beam 300 parallel to the left longitudinal beam 400 and the right longitudinal beam 600, so that the left side plate 310 and the right side plate 320 are in contact with the bottom of the left longitudinal beam 400 and the right longitudinal beam 600, and then fix them at the bottom position of the left longitudinal beam 400 and the right longitudinal beam 600 with bolts, so that the entire installation beam 300 can be fixed.

[0024] Please refer again Figure 1 In order to ensure the external connection effect of the left longitudinal beam 400 and the right longitudinal beam 600, specifically, the top of the left longitudinal beam 400 is fixedly connected to the left longitudinal beam connecting plate 410 by bolts, and the top of the right longitudinal beam 600 is fixedly connected to the right longitudinal beam connecting plate 610 by bolts.

[0025] Please refer again Figure 1-3 In order to effectively connect the support plate 220 to the rear cross beam 100 and improve the strength, specifically, the width of the support plate 220 is the same as the width of the rear cross beam 100, and the support plate 220 is fixedly connected to the bottom of the rear cross beam 100 by a support plate bolt 230.

[0026] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A spring arm mounting crossbeam for a rear subframe of an automobile, characterized in that: The invention comprises a fastener (200) and a mounting crossbeam (300), wherein a rear crossbeam (100) is fixedly mounted on the top of the fastener (200), the mounting crossbeam (300) is buckled on the bottom of the fastener (200), the mounting crossbeam (300) is fixedly connected to the front side wall of the fastener (200) by bolts, the front side wall of the rear crossbeam (100) is fixedly connected to a left longitudinal beam (400) and a right longitudinal beam (600) by bolts, the bottoms of the left longitudinal beam (400) and the right longitudinal beam (600) are fixedly connected to the front crossbeam (500) by bolts, the front side wall of the fastener (200) is integrally formed with a buckle tooth (210), a support plate (220) is welded to the rear side wall of the fastener (200), the top of the support plate (220) is threadedly connected to a support plate bolt (230), and the fastener (2 00) is welded with an inclined frame (240), the bottom of the inclined frame (240) is welded to the rear side wall of the fastener (200), the left side wall of the mounting crossbeam (300) is welded with a left side plate (310), the right side wall of the mounting crossbeam (300) is welded with a right side plate (320), and the tops of the left side plate (310) and the right side plate (320) are provided with side plate holes (330); the top of the rear crossbeam (100) is provided with a rear crossbeam main hole (101) and a rear crossbeam auxiliary hole (102), and the diameter of the rear crossbeam main hole (101) is the same as the diameter of the rear crossbeam auxiliary hole (102); the top of the left longitudinal beam (400) is fixedly connected to the left longitudinal beam connecting plate (410) by bolts, and the top of the right longitudinal beam (600) is fixedly connected to the right longitudinal beam connecting plate (610) by bolts.

2. The automobile rear subframe spring arm mounting crossbeam according to claim 1, characterized in that: The width of the support plate (220) is the same as the width of the rear cross beam (100), and the support plate (220) is fixedly connected to the bottom of the rear cross beam (100) via support plate bolts (230).

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