阅读说明：本技术 一种特殊结构的封闭后扭力梁 (Closed rear torsion beam with special structure ) 是由 袁鹤中 朱伟 于 2019-10-31 设计创作，主要内容包括：本发明公开了汽车零件设备技术领域的一种特殊结构的封闭后扭力梁,包括扭力梁体和两个连接机构,所述扭力梁体的两端开口方向向后,并且双向弯曲,所述扭力梁体的两端顶部安装有第一连接板,所述第一连接板的后侧壁通过螺栓各安装有一个第二连接板,两个所述连接机构分别安装于所述扭力梁体的两端,所述连接机构包括空心柱、连接座和安装板,所述空心柱与所述连接机构的端部焊接固定,所述连接座通过焊接固定于所述空心柱的顶部；该特殊结构的封闭后扭力梁的设置,结构设计合理,扭力梁体的开口方向向后,并且双向弯曲的封闭梁架构,能够满足空间布置安装要求的同时,又能保证侧倾中心高度,从而大幅度的提高扭力梁的使用效率。(The invention discloses a closed rear torsion beam with a special structure in the technical field of automobile part equipment, which comprises a torsion beam body and two connecting mechanisms, wherein openings at two ends of the torsion beam body are backward and bidirectionally bent, first connecting plates are arranged at the tops of the two ends of the torsion beam body, a second connecting plate is respectively arranged on the rear side wall of each first connecting plate through bolts, the two connecting mechanisms are respectively arranged at the two ends of the torsion beam body, each connecting mechanism comprises a hollow column, a connecting seat and an installing plate, the hollow column is welded and fixed with the end parts of the connecting mechanisms, and the connecting seats are fixed at the tops of the hollow columns through welding; this special construction's setting of closing back torsion beam, structural design is reasonable, and the opening direction of the torsion beam body is backward to the closed beam framework of two-way bend can satisfy the space arrangement installation requirement, can guarantee the central height that heels again, thereby by a wide margin improvement torsion beam's availability factor.)

1. A closed rear torsion beam with a special structure is characterized in that: the torsion beam comprises a torsion beam body (100) and two connecting mechanisms (200), wherein the two ends of the torsion beam body (100) are open backwards and are bent in two directions, first connecting plates (110) are installed at the tops of the two ends of the torsion beam body (100), a second connecting plate (120) is installed on the rear side wall of each first connecting plate (110) through bolts, the two connecting mechanisms (200) are installed at the two ends of the torsion beam body (100) respectively, each connecting mechanism (200) comprises a hollow column (210), a connecting seat (220) and a mounting plate (230), the hollow column (210) is welded and fixed with the end part of each connecting mechanism (200), the connecting seat (220) is welded and fixed at the top of the hollow column (210), the mounting plate (230) is fixed with the connecting seat (220) through welding, and the first connecting piece (231) is welded and fixed on the outer side wall of the mounting plate (230), The first connecting piece (231) and the second connecting piece (232) are both provided with a plurality of mounting holes, and the middle position in the mounting plate (230) is provided with a round hole (233).

2. The closed rear torsion beam with a special structure according to claim 1, wherein: the second connecting plate (120) is fixed with one surface of the hollow column (210) in contact through a bolt, and the second connecting plate (120) and the hollow column (210) are distributed in parallel.

3. The closed rear torsion beam with a special structure according to claim 1, wherein: the connecting seat (220) is of an I-shaped structure.

4. The closed rear torsion beam with a special structure according to claim 1, wherein: five screw holes are annularly distributed around the round hole (233).

5. The closed rear torsion beam with a special structure according to claim 1, wherein: two baffle (240) are all installed through the bolt to the inside wall of connecting seat (220), baffle (240) are located the preceding lateral wall of torsion beam body (100).

Technical Field

The invention relates to the technical field of automobile part equipment, in particular to a closed rear torsion beam with a special structure.

Background

Studies have shown that the roll center height is only a geometrical property of the suspension, and is an inherent property of the suspension depending on the geometry, so it can be adjusted at design time. In this case, the roll center height of the rear torsion beam whose opening direction is downward tends to be not so easily adjusted, failing to reach a desired height. The roll center height has an effect on both the front and rear axle roll angles, camber angle, and thus on the steering performance and tire grip capability of the vehicle. Vehicle roll angle and roll angle velocity are important parameters for evaluating vehicle handling stability and smoothness. Excessive roll angle can be unstable, unsafe for the driver and uncomfortable for the passengers. If the roll angle is too small, i.e., the roll rigidity is too high, the one-sided wheel will encounter a bulge or a dent, which will affect the ride performance of the tire, and the vehicle will experience a relatively severe impact. The existing torsion beam has a serious problem that the height of a roll center cannot be effectively stabilized when the torsion beam is used, so that the use efficiency of the torsion beam is influenced.

Disclosure of Invention

The invention aims to provide a closed rear torsion beam with a special structure, so as to solve the problem that the torsion beam provided by the background technology cannot effectively stabilize the height of a roll center when in use, and thus the use efficiency of the torsion beam is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a closed rear torsion beam with a special structure comprises a torsion beam body and two connecting mechanisms, wherein openings at two ends of the torsion beam body are backward, and is bidirectionally bent, the tops of both ends of the torsion beam body are provided with first connecting plates, the rear side wall of each first connecting plate is provided with a second connecting plate through bolts, the two connecting mechanisms are respectively arranged at both ends of the torsion beam body, the connecting mechanism comprises a hollow column, a connecting seat and a mounting plate, the hollow column is welded and fixed with the end part of the connecting mechanism, the connecting seat is fixed on the top of the hollow column by welding, the mounting plate is fixed with the connecting seat by welding, the lateral wall welded fastening of mounting panel has first connecting piece, second connecting piece, first connecting piece with a plurality of mounting holes have all been opened to the inside of second connecting piece, open the inside intermediate position of mounting panel has the round hole.

Preferably, the second connecting plate is fixed with the contact surface of the hollow column through a bolt, and the second connecting plate and the hollow column are distributed in parallel.

Preferably, the linker moiety is of an i-type structure.

Preferably, five screw holes are annularly distributed around the round hole.

Preferably, the inner side walls of the two connecting seats are provided with a baffle through bolts, and the baffle is positioned on the front side wall of the torsion beam body.

Compared with the prior art, the invention has the beneficial effects that: this special construction's setting of closing back torsion beam, structural design is reasonable, and the opening direction of the torsion beam body is backward to the closed beam framework of two-way bend can satisfy the space arrangement installation requirement, can guarantee the central height that heels again, thereby by a wide margin improvement torsion beam's availability factor.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the connecting mechanism of the present invention.

In the figure: the torsion beam comprises a torsion beam body 100, a first connecting plate 110, a second connecting plate 120, a connecting mechanism 200, a hollow column 210, a connecting seat 220, a mounting plate 230, a first connecting piece 231, a second connecting piece 232, a round hole 233 and a baffle 240.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a closed rear torsion beam with a special structure, which is used for meeting the space arrangement and installation requirements and simultaneously ensuring the height of a side-tipping center so as to greatly improve the use efficiency of the torsion beam, and please refer to fig. 1-2, and the closed rear torsion beam comprises a torsion beam body 100 and two connecting mechanisms 200.

Referring to fig. 1 again, the opening directions of both ends of the torsion beam body 100 are backward and bidirectionally curved, the first connection plates 110 are installed at the tops of both ends of the torsion beam body 100, the second connection plates 120 are respectively installed on the rear side walls of the first connection plates 110 through bolts, the torsion beam body 100 is used for balancing the vertical runout of the left and right wheels to reduce the shaking of the vehicle and keep the stability of the vehicle, and the first connection plates 110 and the second connection plates 120 are used for improving the stability of the connection mechanism 200 with the torsion beam body 100.

Referring to fig. 1-2, the two connection mechanisms 200 are respectively installed at two ends of the torsion beam body 100, each connection mechanism 200 includes a hollow column 210, a connection seat 220 and a mounting plate 230, the hollow column 210 is welded and fixed to an end of the connection mechanism 200, the connection seat 220 is welded and fixed to a top of the hollow column 210, the mounting plate 230 is fixed to the connection seat 220 by welding, a first connection member 231 and a second connection member 232 are welded and fixed to an outer side wall of the mounting plate 230, a plurality of mounting holes are formed in the first connection member 231 and the second connection member 232, a circular hole 233 is formed in the middle position of the inside of the mounting plate 230, and the hollow column 210, the connection seat 220 and the mounting plate 230 are used for being connected to an external fixing.

Referring to fig. 1 again, in order to improve the stability of the hollow column 210 and the torsion beam body 100 during installation, one surface of the second connecting plate 120 contacting the hollow column 210 is fixed by bolts, and the second connecting plate 120 and the hollow column 210 are distributed in parallel.

Referring to fig. 1-2, in order to improve the connection between the connecting seat 220 and the hollow column 210, the connecting seat 220 is an i-shaped structure, which can reduce the weight and maintain the strength of the welding fixation.

Referring to fig. 2, for the convenience of fixing with the external device, five screw holes are annularly distributed around the circular hole 233.

Referring to fig. 1, in order to improve the stability of the torsion beam 100, a baffle 240 is installed on the inner side walls of the two connection bases 220 through bolts, four first thread grooves are formed on the inner side walls of the two connection bases 220, four second thread grooves corresponding to the first thread grooves are formed on the end portions of the two connection bases 240, the two connection bases 240 and the torsion beam 220 are connected and fixed through the four first thread grooves, the four second thread grooves and the bolts, and the baffle 240 is located on the front side wall of the torsion beam 100.

The first thread groove, the second thread groove and the screw hole are not limited to the specific number described in the embodiment, and those skilled in the art can increase or decrease the number as required on the premise that the device can improve the use efficiency.

The working principle is as follows: the hollow columns 210, the connecting seats 220 and the mounting plates 230 at the two ends of the torsion beam body 100 are respectively connected with the connecting and fixing devices of the wheels, when the torsion beam body 100 and the connecting mechanism 200 are used, the torsion beam body 100 with the curved structure can balance the vertical jumping of the left wheel and the right wheel, so that the shaking of the vehicle is reduced, and the stability of the vehicle is kept.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.