阅读说明：本技术 一种高强度扭力梁安装架、下车体及白车身 (High strength torsion beam mounting bracket, lower vehicle body and white vehicle body ) 是由 马行空 舒培超 杨小鸣 邝勇 董士琦 李凯 于 2021-08-24 设计创作，主要内容包括：本发明涉及一种高强度扭力梁安装架,包括汽车车身的门槛梁、汽车车身的纵梁,与二者连接的安装件及加强块,加强快同时还和安装件相连接,使本高强度扭力梁安装架具备更高的强度,同时又可采用成本低廉的焊接方式组装至一起。本发明还涉及一种下车体,其通过后衡量连接两个安装件。本发明还涉及一中白车身,其将两个C柱与两个门槛梁连接至一起,与顶横梁形成闭环结构。本发明在巧妙地使得扭力梁安装处的各个零件受力因分散而变小,具备更高的强度,提高汽车行驶时的安全程度。(The invention relates to a high-strength torsion beam mounting frame which comprises a threshold beam of an automobile body, a longitudinal beam of the automobile body, a mounting piece and a reinforcing block, wherein the mounting piece and the reinforcing block are connected with the threshold beam and the longitudinal beam of the automobile body, and the mounting piece and the reinforcing block are connected with the mounting piece at the same time. The invention also relates to a lower body which connects two mounting parts by rear weighing. The invention also relates to a body-in-white that connects two C-pillars together with two rocker beams, forming a closed loop structure with a top cross-member. The torsion beam mounting structure ingeniously reduces stress of all parts at the torsion beam mounting position due to dispersion, has higher strength, and improves the safety degree of the automobile during driving.)

1. The utility model provides a high strength torsion beam mounting bracket which characterized in that includes:

a threshold beam;

the extending direction of the longitudinal beam is parallel to the extending direction of the doorsill beam;

a mount for mounting a torsion beam, the mount comprising a body, a surface of the body comprising a mounting face, a first connection face, a second connection face, and a third connection face, wherein the mounting face is for mounting a torsion beam; the first connecting surface deviates from the mounting surface and is connected to one circumferential surface of the longitudinal beam; the second connecting surface and the third connecting surface are both positioned between the mounting surface and the first connecting surface and are both adjacent to the mounting surface, the second connecting surface and the third connecting surface are also adjacent to each other, and the second connecting surface is connected to one surface of the doorsill beam in the circumferential direction;

and one side surface of the reinforcing block is connected with the third connecting surface, and two adjacent side surfaces of the reinforcing block and the third connecting surface are perpendicular to the third connecting surface and are respectively connected with the threshold beam and the longitudinal beam.

2. The high strength torsion beam mounting bracket according to claim 1, wherein the main body has a web-shaped rib plate therein, and the mounting member is a cast member and is connected to the threshold beam, the reinforcing block, and the longitudinal beam by welding.

3. The high-strength torsion beam mounting bracket according to claim 2, wherein a plurality of columns are formed at the junctions of the rib plates in the main body, the axes of the columns are perpendicular to the mounting surface, and threaded holes penetrating through the mounting surface are formed in the columns along the axial direction of the columns.

4. The high strength twist beam mount of claim 1, wherein said mount further comprises a recess, said recess opening onto said first connection face, said longitudinal beam being mounted in said recess.

5. The high strength twist beam mounting bracket of claim 1, wherein said mounting member further comprises a first flange, one edge of said first flange being attached to an edge of said mounting surface facing said third attachment surface, said first flange extending in a direction away from said mounting surface, said first flange being attached to said reinforcement block.

6. The high strength twist beam mount as claimed in claim 1, further comprising a lifting bracket connected to said mounting surface and also connected to said rocker beam and said reinforcement block.

7. The high strength torsion beam mounting bracket of claim 6, wherein the main body further comprises a boss disposed on the mounting surface at an intersection of the mounting surface with the second and third connection surfaces, the boss being connected to the lifting bracket.

8. A lower body, comprising two high-strength torsion beam mounting brackets and a rear cross beam according to any one of claims 1 to 7, wherein the two threshold beams are parallel; the surface of main part still includes the fourth and connects the face, the fourth is connected the face and is located the installation face reaches between the first connection face, the fourth connect the face with the installation face is adjacent, simultaneously still with the third is connected the face and is adjacent, and deviate from the second is connected the face, the both ends of back weighing apparatus roof beam are connected respectively in two the fourth is connected the face.

9. The high strength torsion beam mount of claim 8 wherein said mount further comprises a second flange attached on one side to said mounting surface toward an edge of said fourth attachment surface, said second flange extending in a direction away from said mounting surface, said second flange attached to said rear cross member.

10. A body in white comprising the lower body, the upper body and the cover of claim 8, wherein the upper body is located on a side of the longitudinal beam facing away from the mounting member, the upper body comprises two C-pillars and a top cross beam, one end of each of the two C-pillars is connected to each of the two threshold beams, and both ends of the top cross beam are connected to the other ends of each of the two C-pillars; the covering part covers the surface of the upper vehicle body.

Technical Field

The invention relates to the technical field of automobile body structures, in particular to a high-strength torsion beam mounting frame, a lower automobile body and a white automobile body.

Background

The torsion beam type suspension is a type of rear suspension of an automobile, and balances the up-and-down bouncing of left and right wheels through a torsion beam so as to reduce the shaking of the automobile and keep the automobile stable. The strength and rigidity of the white body and the torsion beam at the installation position can directly influence the durability of the whole vehicle.

Chinese utility model patent CN206336087U discloses a mounting bracket of automobile torsion beam, it includes first mounting bracket and second mounting bracket, and first mounting bracket extends three left journal stirrup all around, is equipped with circular main locating hole on the left journal stirrup respectively, and the second mounting bracket extends three right journal stirrup all around, is equipped with rectangular shape on the right journal stirrup respectively and assists the locating hole. The mounting bracket with the main positioning hole and the auxiliary positioning hole is arranged, so that the purposes of simplifying the assembly process and facilitating production are achieved.

However, the above-described mounting bracket for the torsion beam does not have sufficient strength, and is liable to cause danger when the automobile is driven.

Disclosure of Invention

Accordingly, there is a need for a high strength torsion beam mounting bracket for improving the strength of a vehicle at the location where the torsion beam is mounted.

The invention provides a high-strength torsion beam mounting frame, which comprises:

a threshold beam;

the extending direction of the longitudinal beam is parallel to the extending direction of the threshold beam;

the mounting piece is used for mounting the torsion beam and comprises a main body, the surface of the main body comprises a mounting surface, a first connecting surface, a second connecting surface and a third connecting surface, and the mounting surface is used for mounting the torsion beam; the first connecting surface deviates from the mounting surface and is connected to one circumferential surface of the longitudinal beam; the second connecting surface and the third connecting surface are positioned between the mounting surface and the first connecting surface and are adjacent to the mounting surface, the second connecting surface and the third connecting surface are also adjacent, and the second connecting surface is connected to one surface of the threshold beam in the circumferential direction;

the face is connected with the third to the boss, and two adjacent sides are all perpendicular to the third with the third connection face in the boss, and are connected with threshold roof beam and longeron respectively.

Preferably, the main body is internally provided with a net-shaped rib plate, and the mounting part is a casting part and is connected with the sill beam, the reinforcing block and the longitudinal beam through welding.

Preferably, the mounting member further comprises a recess, the recess opening onto the first connecting surface, the stringer being mounted in the recess.

Preferably, the mounting member further comprises a recess, wherein the recess opens onto the first connecting surface and the stringer is mounted in the recess.

Preferably, the mounting member further comprises a first protruding plate, one edge of the first protruding plate is connected to one edge of the mounting surface facing the third connecting surface, the first protruding plate extends in a direction away from the mounting surface, and the first protruding plate is connected to the reinforcing block.

Preferably, the lifting bracket is connected to the mounting surface, and is also connected to the threshold beam and the reinforcing block.

Preferably, the main body further comprises a boss, the boss is arranged on the mounting surface and located at the joint of the mounting surface and the second and third connecting surfaces, and the boss is connected with the lifting support.

The invention provides a high-strength torsion beam mounting frame which is connected with a torsion beam through a mounting surface on a mounting piece, meanwhile, a first connecting surface on the mounting piece is connected with a longitudinal beam, a second connecting surface is connected with a threshold beam, a third connecting surface is connected with a reinforcing block, the reinforcing block is connected with the threshold beam and the longitudinal beam, and the four parts interact with each other, so that the connection stability of structures near the mounting piece is improved together, and meanwhile, a plurality of force transmission paths are provided for the mounting piece. In addition, the vertical angles of the two side surfaces connected with the sill beam and the longitudinal beam in the reinforcing block and the third connecting surface enable stress of each part at the position to be reduced due to dispersion, higher strength is achieved, and the safety degree of the automobile during running is improved.

The invention also provides a lower vehicle body, which comprises two high-strength torsion beam mounting frames and a rear cross beam, wherein the two threshold beams are parallel; the surface of main part still includes the fourth and connects the face, and the fourth is connected the face and is located between installation face and the first connection face, and the fourth is connected the face and is connected the face with the installation and adjacent, still connects face with the third simultaneously and is adjacent to deviate from the second and connect the face, and the both ends of back weighing apparatus roof beam are connected respectively in two fourth and are connected the face.

Preferably, the mounting member further comprises a second flange, one side of the second flange is connected to the side of the mounting surface facing the fourth connecting surface, the second flange extends in a direction away from the mounting surface, and the second flange is connected to the rear cross member.

According to the lower automobile body provided by the invention, the two high-strength torsion beam mounting frames are connected with the rear cross beam to form the lower automobile body of the automobile, and the rear cross beam connected with the fourth connecting surface further exerts the advantages of the high-strength torsion beam mounting frames, so that the lower automobile body, particularly the parts near the mounting pieces, have enough strength, and parts such as a battery pack between the two threshold beams can be effectively protected. In particular the fourth connection face in the body, which increases the active surface between the mounting and the rear cross member, further improving the strength.

The invention also provides a body in white, which comprises the lower vehicle body, the upper vehicle body and the covering part, wherein the upper vehicle body is positioned on one side of the longitudinal beam, which is far away from the mounting part, the upper vehicle body comprises two C-shaped columns and a top cross beam, one ends of the two C-shaped columns are respectively connected with the two threshold beams, and two ends of the top cross beam are respectively connected with the other ends of the two C-shaped columns; the covering part covers the surface of the upper vehicle body.

The invention provides a body-in-white, which arranges an upper body and a covering piece on the lower body to form a framework of an automobile. Besides the advantages of easy processing and low cost caused by the high-strength torsion beam mounting frame, the white car body also forms a closed loop structure through the two C columns of the upper car body, the top cross beam and the lower car body, so that the high-strength torsion beam mounting frame is positioned in the annular structure of the whole white car body, and the rigidity and the safety of the whole car are greatly improved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a high-strength torsion beam mounting bracket according to the present invention;

FIG. 2 is a schematic view of the mount of FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of the lower body according to the present invention;

FIG. 4 is a schematic structural view of an embodiment of a body in white provided by the present invention;

FIG. 5 is a schematic view of the cover-omitted portion of FIG. 4;

fig. 6 is a partial schematic view of the mount portion of fig. 5.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.

Referring to fig. 1 to 2, the present invention provides an embodiment of a high-strength torsion beam mounting bracket, which includes a threshold beam 1, a mounting member 2, a reinforcing block 3, and a longitudinal beam 4. The threshold beam 1 is a threshold beam 1 on an automobile body, is used for improving the trample bearing strength of an automobile door frame, is also used for transmitting front and side impact force, and can be used for fixing a battery pack in a new energy electric automobile. The mounting member 2 is used for mounting a torsion beam, which is connected to one surface on the peripheral side of the rocker beam 1, and may be located at the front or rear of the rocker beam 1 depending on the position where the torsion beam is mounted, and by way of example, the mounting member 2 in this embodiment is located at the rear end of the rocker beam 1 for mounting a torsion beam rear suspension, and the mounting member 2 has a torsion beam rear suspension front mounting point thereon. The reinforcement 3 is connected to the installed part 2, and the reinforcement 3 still is connected with threshold roof beam 1 simultaneously for improve the joint strength of installed part 2 and threshold roof beam 1.

In addition, in the high-strength torsion beam mount, the extending direction of the side member 4 and the extending direction of the rocker beam 1 are parallel. Similar to the sill beam 1, the longitudinal beam 4 can also be a part of the body of the vehicle itself, which is generally longer and can penetrate the entire chassis of the vehicle, which is mainly used to support other structures on the body of the vehicle, while increasing the rigidity and strength of the vehicle bottom and the entire vehicle. The mounting member 2 is attached to one surface of the side member 4 on the circumferential side, and the reinforcing block 3 is also attached to the side member 4 at the same time.

Threshold roof beam 1 and boss 3 in this embodiment are connected respectively in the adjacent two sides on installed part 2, have promoted the connection steadiness between installed part 2 and the threshold roof beam 1. Threshold roof beam 1, installed part 2, strengthen interconnect between 3 and the longeron 4 soon, provide many power transmission route for installed part 2 simultaneously for each part atress of this department diminishes because of the dispersion, possesses higher intensity. Furthermore, the acting forces such as torsion force borne by the mounting part 2 and impact force borne by the threshold beam 1 can be borne by the longitudinal beam 4 and the reinforcing block 3 together, and meanwhile, the reinforcing block 3 improves the connection strength among the longitudinal beam 4, the mounting part 2 and the threshold beam 1, so that the high-strength torsion beam mounting frame has higher mechanical property in driving and higher safety. The threshold beam 1, the mounting piece 2 and the reinforcing block 3 can be manufactured independently and assembled together by welding or bolts and the like, so that the manufacturing difficulty and cost are reduced.

Referring to fig. 2, as a preferred embodiment, the mounting member 2 in this embodiment includes a main body 21, and a plurality of surfaces on the main body 21 further includes a mounting surface 211, a first connection surface 212, a second connection surface 213, and a third connection surface 214. Wherein the mounting surface 211 is used for mounting the torsion beam, i.e. when mounted to the vehicle body, the mounting surface 211 faces the ground. The first connecting surface 212 is connected to the longitudinal beam 4, facing away from the mounting surface 211. In this embodiment, other surfaces of the body 21 are located between the mounting surface 211 and the first connecting surface 212, and the surfaces enclose a pentagonal shape including a second connecting surface 213 and a third connecting surface 214.

Specifically, the second connecting surface 213 and the third connecting surface 214 are located between the mounting surface 211 and the first connecting surface 212 and are adjacent to the mounting surface 211, the second connecting surface 213 is adjacent to the third connecting surface 214, the second connecting surface 213 is used for connecting the rocker beam 1, and the third connecting surface 214 is used for connecting the reinforcing block 3. The second connecting surface 213 and the third connecting surface 214 are perpendicular, and the reinforcing block 3 covers the third connecting surface 214, so that no gap exists between the threshold beam 1, the mounting part 2 and the reinforcing block 3, and the connecting strength of the threshold beam, the mounting part 2 and the reinforcing block is maximized. Meanwhile, the connecting point of the threshold beam 1 and the mounting part 2, the connecting point of the mounting part 2 and the longitudinal beam 4 and the connecting point of the mounting part 2 and the torsion beam form a triangular structure, so that the stress of any one part of the mounting part 2, the longitudinal beam 4 and the threshold beam 1 can be dispersed, and the stability and the rigidity of the whole structure are improved. Particularly for the longitudinal beam 4, the triangular structure can effectively disperse the stress of the longitudinal beam 4 to the doorsill beam 1, and the triangular structure can be used as an energy absorption structure to protect the power battery in the middle.

It will be appreciated that in practice the specific construction of the mounting element 2 may differ slightly from that described above, only by ensuring that the connection between the mounting element 2, the sill beam 1, the reinforcement 3 and the stringer 4 is in accordance with the above. For example, the second connecting surface 213 may not be adjacent to the third connecting surface 214, and there may be other structures such as a rounded chamfer. Further, the longitudinal beam 4 and the threshold beam 1 may be respectively located at both sides of the main body 21 and connected to the side surfaces of both sides of the main body 21, and the reinforcing block 3 penetrates the front mounting member 2 and has both ends respectively connected to the threshold beam 1 and the longitudinal beam 4.

Referring to fig. 2, as a preferred embodiment, the main body 21 of the present embodiment has a web-shaped rib 215 inside, and the mounting surface 211 has a plurality of threaded holes 216 for connecting to the torsion beam. The rib plate 215 may be hidden inside the main body 21 or exposed as in this embodiment, and in this embodiment, a plurality of columns are formed at the joints of the plurality of rib plates 215, and a threaded hole 216 is formed in the middle of each column for being in threaded connection with the torsion beam, that is, the plurality of rib plates 215, i.e., the threaded holes 216 in this embodiment, form the mounting surface 211 of the present mounting assembly 2.

This configuration can reduce the weight of the mounting member 2 while providing sufficient strength to the mounting member 2. Meanwhile, the threaded hole 216 enables the installation part 2 to be connected with the torsion beam without additionally arranging an additional sleeve, and the assembly operation is convenient. The mounting member 2 in this embodiment is a cast member, and is connected to the rocker beam 1, the reinforcing block 3, and the side member 4 by welding. Make this high strength torsion beam mounting bracket possess certain intensity, rigidity promptly stability promptly, reduced the difficulty degree of the production and processing of whole device again, reduced manufacturing cost. In addition, the design of casting and welding also saves redundant structures such as flanges and the like in the whole device, so that the appearance of the product is cleaner, and the installation space under the chassis of the vehicle body can be increased.

The present invention also provides a preferred embodiment, wherein the mounting member 2 of the high strength torsion beam mounting bracket further comprises a groove 22 and a first flange 23. Wherein the groove 22 opens onto the first connection face 212 and the longitudinal beam 4 is mounted in the groove 22. The groove 22 in this embodiment extends in a direction perpendicular to the third connecting surface 214, and has a shape curved in a depth direction thereof so as to conform to the longitudinal beam 4, and the groove 22 can stabilize the longitudinal beam 4 from a side to improve the connecting strength between the longitudinal beam 4 and the mounting member 2.

One edge of the first protruding plate 23 is connected to the edge of the mounting surface 211 facing the third connecting surface 214, the first protruding plate 23 extends in a direction away from the mounting surface 211, and the first protruding plate 23 is connected to the reinforcing block 3. The first convex plate 23 increases the acting area between the main body 21 and the reinforcing block 3, and improves the force transmission effect and the connection strength between the main body 21 and the reinforcing block 3.

Referring again to fig. 1, the present invention also provides a preferred embodiment, wherein the high strength torsion beam mounting bracket further comprises a lifting bracket 5, and the lifting bracket 5 is connected to the mounting surface 211 and also connected to the rocker beam 1 and the reinforcement 3. The lifting support 5 can be used as a supporting point for lifting the whole vehicle body when being used for maintaining the whole vehicle and connected with devices such as a jack and the like. Most importantly, the lifting bracket 5 in the embodiment provides a force transmission path for the whole high-strength torsion beam mounting frame, so that the strength of the joint of the mounting part 2, the threshold beam 1 and the reinforcing block 3 is further improved, and the performance of the high-strength torsion beam mounting frame is improved.

Referring to fig. 2, as a preferred embodiment, the main body 21 of the present embodiment further includes a boss 24. The boss 24 is disposed on the mounting surface 211 and located at the joint of the mounting surface 211 and the second and third connection surfaces 213 and 214, and the boss 24 is connected to the lifting bracket 5. This not only provides an installation space for the lifting support 5, but also improves the strength between the mounting member 2 and the lifting support 5.

As shown in fig. 3, the present invention also provides an embodiment of a lower vehicle body, which includes two high-strength torsion beam mounts as described in the previous embodiments, a rear cross member 6, a front cross member, and other connecting members (none of which are labeled). The longitudinal beams 4 in the two high-strength torsion beam mounting frames are respectively connected to the two ends of the front cross beam, and the two ends of the rear cross beam 6 are respectively connected to the two mounting pieces 2 to form a frame structure serving as an automobile chassis. The two threshold beams 1 are parallel and are respectively positioned at the outer sides of the two longitudinal beams 4, and battery packs can be arranged between the two longitudinal beams 4 and the front cross beam and the rear cross beam 6. It should be noted that, welded connection modes can be adopted among the front cross beam, the rear beam, and the longitudinal beam 4 and the rear mounting member 2, and other connection modes can be selected according to actual situations.

Specifically, the surface of the main body 21 in this embodiment further includes a fourth connection surface 217, the fourth connection surface 217 is located between the mounting surface 211 and the first connection surface 212, the fourth connection surface 217 is adjacent to the mounting surface 211, and is also adjacent to the third connection surface 214, and deviates from the second connection surface 213, two ends of the back balance beam are respectively connected to the two fourth connection surfaces 217, and the fourth connection surface 217 in this embodiment is perpendicular to the third connection surface 214.

According to the lower automobile body provided by the invention, the two high-strength torsion beam mounting frames and the rear cross beam 6 are connected to form the lower automobile body of an automobile, the rear cross beam 6 further exerts the advantages of the high-strength torsion beam mounting frames, and the manufacturing cost of the whole lower automobile body is reduced. And the stress of one mounting piece 2 can be dispersed to another high-strength torsion beam mounting frame through the rear cross beam 6, so that the lower car body, particularly the vicinity of the mounting piece 2, has enough strength, and parts such as a battery pack between the two threshold beams 1 can be effectively protected.

Referring to fig. 1 and fig. 2, as a preferred embodiment, the mounting member 2 in this embodiment further includes a second protruding plate 25. One side of the second protruding plate 25 is connected to the mounting surface 211 towards the fourth connecting surface 217, the second protruding plate 25 extends in a direction away from the mounting surface 211, and the second protruding plate 25 is connected to the rear cross member 6. Like the first protruding plate 23, the second protruding plate 25 increases the effective area between the main body 21 and the rear weight, so that the force dispersion effect is better and the strength is higher.

As shown in fig. 4 to 6, the present invention also provides an embodiment of a body-in-white including the lower body, the upper body 7 and the cover 8 described in the previous embodiments. Wherein, the upper vehicle body 7 is positioned at one side of the longitudinal beam 4 departing from the mounting part 2, the upper vehicle body 7 comprises two C-shaped columns 71 and a top cross beam 72, one ends of the two C-shaped columns 71 are respectively connected with the two threshold beams 1, and two ends of the top cross beam 72 are respectively connected with the other ends of the two C-shaped columns 71. The cover member 8 covers the surface of the upper vehicle body 7.

The invention provides a body-in-white, which arranges an upper body 7 and a covering piece 8 on the lower body to form a framework of an automobile. Besides the advantages of easy processing and low cost brought by the high-strength torsion beam mounting frame, the white automobile body also forms a closed loop structure by the two C columns 71 of the upper automobile body 7, the top cross beam 72 and the lower automobile body, so that the high-strength torsion beam mounting frame is positioned in the annular structure of the whole white automobile body, the action force of the torsion beam on the mounting part 2 and the impact force on the side surface of the automobile body can be dispersed to the whole white automobile body, and the rigidity and the safety of the whole automobile are greatly improved.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.