CN213920588U

CN213920588U - Large torsional rigidity open type torsion beam

Info

Publication number: CN213920588U
Application number: CN202022709254.4U
Authority: CN
Inventors: 韦鹏; 韦友; 陈衍标; 马果
Original assignee: Liuzhou Wuling Automobile Industry Co Ltd; Guangxi Automobile Group Co Ltd
Current assignee: Liuzhou Wuling Automobile Industry Co Ltd; Liuzhou Wuling Motors Co Ltd; Guangxi Automobile Group Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-10
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a big torsional rigidity open type torsion beam, include: the torsion bar comprises a left longitudinal beam, a right longitudinal beam, a cross beam and a torsion bar, wherein a left clamping groove and a right clamping groove are formed in two ends of the cross beam, the cross beam is fixedly welded with the left longitudinal beam through the left clamping groove, the cross beam is fixedly welded with the right longitudinal beam through the right clamping groove, the torsion bar is arranged in parallel with the cross beam, a left reinforcing plate and a right reinforcing plate are respectively arranged at two ends of the torsion bar, two ends of the torsion bar are fixedly welded with two ends of the cross beam through the left reinforcing plate and the right reinforcing plate, and a first rigidity adjusting plate is further fixedly arranged on the cross beam; the utility model provides a big torsional rigidity open type torsion beam through with the rigidity adjusting plate welding to the crossbeam on, realizes torsion beam torsional rigidity's increase, the timing of effectual completion chassis performance fast. The increase of development cost and the extension of development cycle caused by repeated die repair and die sinking are avoided.

Description

Large torsional rigidity open type torsion beam

Technical Field

The utility model belongs to the technical field of the vehicle, concretely relates to big torsional rigidity open type torsion beam.

Background

The performance adjustment of the chassis piece is a key project in the whole vehicle development process. The rear suspension is one of the key parts of the chassis part and has important influence on the performance of the chassis. The torsion beam type rear suspension is widely applied to A-level vehicles because of simple structure, low cost, strong bearing performance and small installation space. The torsion beam type rear suspension is divided into an open torsion beam and a closed torsion beam according to different beam structures. Compared with a closed torsion beam, the open torsion beam has the advantages of mature process, low cost and small investment in equipment and dies, and is mainly applied to cars with high bearing capacity or SUVs and MPVs. The torsional rigidity of the torsion beam plays a critical role in the performance of the chassis. In the process of adjusting the performance of the chassis of a new vehicle type, torsion beams with different torsional rigidity values are required according to different performance requirements. The cross beam and the torsion bar of the open torsion beam play a decisive role in the torsional rigidity of the torsion beam. Therefore, the present research has focused on adjusting the torsional rigidity of the torsion beam by changing the beam plate thickness, the beam cross-sectional shape, and the torsion bar diameter.

In order to obtain torsion beams with different rigidity values, the chassis performance is adjusted. In this way, the die needs to be modified or even re-opened, which increases the cost of product development, prolongs the development period, and cannot develop the performance of the chassis quickly.

In the prior art, for example, chinese utility model patent with publication number CN209257822U discloses a torsion beam assembly with a detachable torsion bar and a vehicle, which comprises a left longitudinal beam, a right longitudinal beam, a torsion bar and a cross beam, wherein the torsion beam is horizontally arranged and connected between the left longitudinal beam and the right longitudinal beam, the torsion bar is parallel to the cross beam, and the torsion beam assembly with a detachable torsion bar further comprises a connecting component; the torsion bar is detachably connected with the left longitudinal beam and the right longitudinal beam through the connecting assembly; the connecting assembly comprises at least two mounting sleeves, the two mounting sleeves are arranged on the torsion bar in a penetrating mode and detachably connected with the torsion bar, and the two mounting sleeves are connected with the left longitudinal beam and the right longitudinal beam respectively; it can be seen that the detachable connection problem of the torsion bar is mainly realized by the aid of the mounting sleeve in the technology, and torsional rigidity of the torsion beam is improved by increasing inertia of a torsional section without consideration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big torsional rigidity open type torsion beam aims at increasing torsion beam's torsional cross section inertia, promotes torsion beam torsional rigidity.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a big torsional rigidity open type torsion beam, include: the torsion bar is arranged in parallel with the cross beam, two ends of the torsion bar are respectively provided with a left reinforcing plate and a right reinforcing plate, and two ends of the torsion bar are respectively welded and fixed with two ends of the cross beam through the left reinforcing plate and the right reinforcing plate;

and a first rigidity adjusting plate is fixedly arranged on the cross beam.

As a further improvement of the utility model, the crossbeam is V type open structure, the V type opening part at the crossbeam is arranged to first rigidity adjusting plate.

As a further improvement, be fixed with second rigidity adjusting plate and third rigidity adjusting plate on the inside wall of crossbeam, be fixed with fourth rigidity adjusting plate and fifth rigidity adjusting plate on the lateral wall of crossbeam.

The utility model has the advantages that:

the utility model provides a big torsional rigidity open type torsion beam through with the rigidity adjusting plate welding to the crossbeam on, realizes torsion beam torsional rigidity's increase, the timing of effectual completion chassis performance fast. The increase of development cost and the extension of development cycle caused by repeated die repair and die sinking are avoided.

Drawings

Fig. 1 is a schematic structural view of an open torsion beam with large torsional rigidity according to the present invention;

fig. 2 is a schematic cross-sectional view of a cross beam according to the present invention;

fig. 3 is a top view of the cross beam according to the present invention.

In the figure: 101-a cross beam, 102-a first rigidity adjusting plate, 103-a torsion bar, 104-a second rigidity adjusting plate, 105-a fourth rigidity adjusting plate, 106-a fifth rigidity adjusting plate, 107-a third rigidity adjusting plate, 108-a left longitudinal beam, 109-a right longitudinal beam, 110-a left clamping groove, 111-a right clamping groove, 112-a left reinforcing plate and 113-a right reinforcing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The embodiment of the utility model provides a big torsional rigidity open type torsion beam is provided in the embodiment, as shown in fig. 1, include: a left longitudinal beam 108, a right longitudinal beam 109, a cross beam 101 and a torsion bar 103, as shown in fig. 3, both ends of the cross beam 101 are provided with a left slot 110 and a right slot 111,

the torsion bar is arranged in parallel with the cross beam, two ends of the torsion bar are respectively provided with a left reinforcing plate and a right reinforcing plate, and two ends of the torsion bar are respectively welded and fixed with two ends of the cross beam through the left reinforcing plate and the right reinforcing plate

The cross beam 101 is welded and fixed with the left longitudinal beam 108 through the left clamping groove 110, the cross beam 101 is welded and fixed with the right longitudinal beam 109 through the right clamping groove 111, the torsion bar 103 is arranged in parallel with the cross beam 101, two ends of the torsion bar 103 are respectively provided with a left reinforcing plate 112 and a right reinforcing plate 113, and two ends of the torsion bar 103 are respectively welded and fixed with two ends of the cross beam 101 through the left reinforcing plate 112 and the right reinforcing plate 113;

as shown in fig. 2 and 3, the beam 101 is further fixedly provided with a first stiffness adjustment plate 102, and the first stiffness adjustment plate 102 is arranged on the beam 101, so that the moment of inertia of the torsional section can be increased, and the torsional stiffness of the torsion beam can be improved.

In an embodiment, with continued reference to fig. 2, the cross beam 101 may be designed to be a V-shaped opening structure, the first stiffness adjustment plate 102 may be welded and fixed at the V-shaped opening of the cross beam 101, and the first stiffness adjustment plate 102 welded and fixed at the V-shaped opening of the cross beam 101 may be utilized to achieve the purpose of increasing the moment of inertia of the torsional section, so as to further improve the torsional stiffness of the torsion beam.

In an embodiment, with continuing reference to fig. 2, a second stiffness adjustment plate 104 and a third stiffness adjustment plate 107 may be welded and fixed on an inner sidewall of the cross beam 101, and a fourth stiffness adjustment plate 105 and a fifth stiffness adjustment plate 106 may be welded and fixed on an outer sidewall of the cross beam 101; the specific welding and fixing position needs to be adjusted and determined according to the actual chassis performance, the size (length, width and thickness) of the rigidity adjusting plate required and the welding and fixing position of the rigidity adjusting plate are obtained through analysis, calculation and comparison according to the specific torsional rigidity value, and position limitation is not performed here.

Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.

Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.

Claims

1. A large torsional stiffness open torsion beam comprising: left longeron, right longeron, crossbeam and torsion bar, its characterized in that:

the torsion bar is arranged in parallel with the cross beam, two ends of the torsion bar are respectively provided with a left reinforcing plate and a right reinforcing plate, and two ends of the torsion bar are respectively welded and fixed with two ends of the cross beam through the left reinforcing plate and the right reinforcing plate;

and a first rigidity adjusting plate is fixedly arranged on the cross beam.

2. The large torsional rigidity open torsion beam according to claim 1, wherein: the beam is of a V-shaped opening structure, and the first rigidity adjusting plate is arranged at the V-shaped opening of the beam.

3. The large torsional rigidity open torsion beam according to claim 1, wherein: a second rigidity adjusting plate and a third rigidity adjusting plate are fixed on the inner side wall of the cross beam, and a fourth rigidity adjusting plate and a fifth rigidity adjusting plate are fixed on the outer side wall of the cross beam.