CN207191168U - A kind of automobile rear longitudinal girder assembly structure - Google Patents
A kind of automobile rear longitudinal girder assembly structure Download PDFInfo
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Abstract
本实用新型公开了一种汽车后纵梁总成结构，后纵梁前段和后纵梁后段均为张口朝上的槽状，且后纵梁前段和后纵梁后段叠合搭接为一体，并在接头处形成空腔结构，在后纵梁前段后端的左侧横向设置有后侧围连接件，后纵梁前段后端的右侧横向设置有后悬架安装后连接板和备胎后横梁连接件，且后悬架安装后连接板、备胎后横梁连接件和后纵梁前段相互连接形成一个三脚架结构，后纵梁前段前部的右侧横向设置有吊耳横梁连接件，门槛后段前部的右侧横向设置有后地板前横梁连接件。本实用新型构思新颖、设计合理且结构简单，相对于现有技术的处理手段，使得汽车后纵梁结构部分的刚度更好、模态更优、重量更轻且制造工艺更简单。
The utility model discloses an automobile rear longitudinal beam assembly structure, the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are groove-shaped openings upward, and the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are superimposed and overlapped to form One body, and a cavity structure is formed at the joint, a rear side wall connecting piece is arranged transversely on the left side of the rear end of the front section of the rear longitudinal beam, and a rear connection plate and a spare tire are installed transversely on the right side of the rear end of the front section of the rear longitudinal beam Rear crossbeam connecting piece, and the rear suspension is installed with the rear connecting plate, the spare wheel rear crossbeam connecting piece and the front section of the rear longitudinal beam are connected to each other to form a tripod structure. The right side of the front part of the rear section of the door sill is laterally provided with a rear floor front crossbeam connecting piece. The utility model is novel in concept, reasonable in design and simple in structure. Compared with the processing means in the prior art, the utility model has better rigidity, better mode, lighter weight and simpler manufacturing process of the structural part of the rear longitudinal beam of the automobile.
Description
技术领域technical field
本实用新型属于汽车技术领域，具体地说，特别涉及一种汽车后纵梁总成结构。The utility model belongs to the technical field of automobiles, and in particular relates to an automobile rear longitudinal beam assembly structure.
背景技术Background technique
现有的汽车后纵梁总成通过多段焊接高强度材料的冷冲压零件，布置加强件、增加钣金料厚的方式来满足后悬挂安装点及悬挂弹簧安装点的强度、刚度以及车身车身模态，往往并不能起到很好的效果，且制造工艺复杂，还增加了车身自重，从而使车身油耗增大。The existing automobile rear longitudinal beam assembly satisfies the strength and rigidity of the rear suspension installation point and the suspension spring installation point, as well as the strength and rigidity of the vehicle body mold by multi-section welding cold stamping parts of high-strength materials, arranging reinforcements, and increasing the thickness of the sheet metal. It often does not have a good effect, and the manufacturing process is complicated, and it also increases the weight of the body, thereby increasing the fuel consumption of the body.
实用新型内容Utility model content
有鉴于现有技术的上述缺陷，本实用新型所要解决的技术问题是提供一种汽车后纵梁总成结构。In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide an automobile rear longitudinal beam assembly structure.
本实用新型技术方案如下：一种汽车后纵梁总成结构，包括从前往后依次连接为一体的门槛后段、后纵梁前段和后纵梁后段，所述后纵梁前段和后纵梁后段均为张口朝上的槽状，且所述后纵梁前段和后纵梁后段叠合搭接为一体，并在接头处形成空腔结构，在所述后纵梁前段后端的左侧横向设置有后侧围连接件，所述后纵梁前段后端的右侧横向设置有后悬架安装后连接板和备胎后横梁连接件，且所述后悬架安装后连接板、备胎后横梁连接件和后纵梁前段相互连接形成一个三脚架结构，所述后纵梁前段前部的右侧横向设置有吊耳横梁连接件，所述门槛后段前部的右侧横向设置有后地板前横梁连接件。The technical scheme of the utility model is as follows: an automobile rear longitudinal beam assembly structure, including the rear section of the sill, the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam connected in sequence from front to back, and the front section of the rear longitudinal beam and the rear longitudinal beam The rear sections of the beams are all in the shape of grooves with their openings facing upwards, and the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are superimposed and overlapped as a whole, and a cavity structure is formed at the joint. A rear side wall connecting piece is arranged laterally on the left side, and a rear connecting plate and a spare tire rear crossbeam connecting piece are installed laterally on the right side of the rear end of the front section of the rear longitudinal beam, and the rear connecting plate is installed on the rear suspension, The spare tire rear crossbeam connector and the front section of the rear longitudinal beam are connected to each other to form a tripod structure, the right side of the front part of the rear longitudinal beam is provided with a lug crossbeam connector, and the right side of the front part of the rear section of the door sill is arranged laterally There are rear floor front crossmember connectors.
采用以上技术方案，门槛后段、后纵梁前段和后纵梁后段连接为一个整体，分别起到与车门门槛连接和后纵梁支撑的作用。后纵梁前段和后纵梁后段均设置成槽状，且张口朝上，是针对实际使用过程中更多地来自上下方向的外力，可以增加两者的抗弯折强度，作为后纵梁具有更好的支撑安全性。后纵梁前段和后纵梁后段的叠合搭接处形成封闭的空腔结构，利用了薄壁封闭空腔原理来提升该连接处的机构强度和刚度，因为该连接处在实际使用时会作为悬挂安装点和悬挂弹簧安装点来使用，因此更强的结构强度和刚度的适宜性更强。后侧围连接件用来将后纵梁与后侧围连接起来，后悬架安装后连接板用来将后纵梁与后悬架连接起来，备胎后横梁连接件用来连接后纵梁和备胎后横梁。后悬架安装后连接板、备胎后横梁连接件和后纵梁前段三者形成一个三脚架的结构，可以提高整体的结构稳定性和强度，使得各自在功能发挥上的效果更好。吊耳横梁连接件用来连接后纵梁与吊耳横梁，提高整体强度和稳定性，后地板前横梁连接件用来连接门槛后段与后地板前横梁。By adopting the above technical scheme, the rear section of the threshold, the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are connected as a whole, and respectively play the roles of connecting with the door threshold and supporting the rear longitudinal beam. The front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are both set in a groove shape, and the opening is facing upwards, which is aimed at more external forces from the upper and lower directions during actual use, and can increase the bending strength of the two, as the rear longitudinal beam It has better support security. A closed cavity structure is formed at the superimposed joint of the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam, and the principle of thin-walled closed cavity is used to improve the strength and rigidity of the joint, because the joint is used in actual use. Will be used as suspension mounting points and suspension spring mounting points, so stronger structural strength and rigidity are more suitable. The rear side wall connecting piece is used to connect the rear longitudinal beam with the rear side wall, the rear connecting plate is used to connect the rear longitudinal beam Rear beam. The rear suspension is equipped with the rear connecting plate, the spare tire rear beam connector and the front section of the rear longitudinal beam to form a tripod structure, which can improve the overall structural stability and strength, and make each function better. The lug beam connector is used to connect the rear longitudinal beam and the lug beam to improve the overall strength and stability, and the rear floor front beam connector is used to connect the rear section of the sill to the rear floor front beam.
进一步，为了增加吊耳横梁连接件与后纵梁连接处的结构强度，还包括吊耳加强板，且该吊耳加强板搭接连接在所述门槛后段和后纵梁前段的连接处。Further, in order to increase the structural strength of the connection between the lifting lug crossbeam connecting piece and the rear longitudinal beam, a lifting lug reinforcing plate is also included, and the lifting lug reinforcing plate is overlapped and connected to the joint between the rear section of the door sill and the front section of the rear longitudinal beam.
进一步，为了增强后地板前横梁连接件与门槛后段连接处的结构强度，所述后地板前横梁连接件与所述门槛后段的连接处整体形成封闭的空腔结构。Further, in order to enhance the structural strength of the connection between the rear floor front crossbeam connector and the rear section of the door sill, the connection between the rear floor front crossbeam connector and the rear section of the door sill integrally forms a closed cavity structure.
进一步，为了增加后纵梁前段和后纵梁后段接头处的结构强度，所述后纵梁前段和后纵梁后段接头处形成的空腔内设置有结构加强板。Further, in order to increase the structural strength of the joint between the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam, a structural reinforcing plate is arranged in the cavity formed at the joint between the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam.
有益效果：本实用新型构思新颖、设计合理且结构简单，相对于现有技术的处理手段，使得汽车后纵梁结构部分的刚度更好、模态更优、重量更轻且制造工艺更简单。Beneficial effects: the utility model is novel in concept, reasonable in design and simple in structure. Compared with the processing means of the prior art, the rigidity of the rear longitudinal beam structure of the automobile is better, the mode is better, the weight is lighter and the manufacturing process is simpler.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2是本实用新型另一结构示意图。Fig. 2 is a schematic diagram of another structure of the utility model.
图3是本实用新型后纵梁前段和后纵梁后段连接处的横截面示意图。Fig. 3 is a schematic cross-sectional view of the connection between the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam of the present invention.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型作进一步说明：Below in conjunction with accompanying drawing and embodiment the utility model is further described:
如图1到图3所示的汽车后纵梁总成结构，具有从前往后依次连接为一体的门槛后段1、后纵梁前段2和后纵梁后段3。作为一种优选的实施结构，还包括吊耳加强板9，且该吊耳加强板9搭接连接在门槛后段1和后纵梁前段2的连接处。后纵梁前段2和后纵梁后段3均为张口朝上的槽状，且后纵梁前段2和后纵梁后段3叠合搭接为一体，并在接头处形成空腔结构。作为一种效果更好的优选结构，后纵梁前段2和后纵梁后段3接头处形成的空腔内设置有结构加强板10。在后纵梁前段2后端的左侧横向设置有后侧围连接件4，后纵梁前段2后端的右侧横向设置有后悬架安装后连接板5和备胎后横梁连接件6，且后悬架安装后连接板5、备胎后横梁连接件6和后纵梁前段2相互连接形成一个三脚架结构。后纵梁前段2前部的右侧横向设置有吊耳横梁连接件7，门槛后段1前部的右侧横向设置有后地板前横梁连接件8。后地板前横梁连接件8与门槛后段1的连接处整体形成封闭的空腔结构。As shown in Fig. 1 to Fig. 3, the automobile rear longitudinal beam assembly structure has a door sill rear section 1, a rear longitudinal beam front section 2 and a rear longitudinal beam rear section 3 which are sequentially connected as one from front to back. As a preferred implementation structure, a lifting lug reinforcing plate 9 is also included, and the lifting lug reinforcing plate 9 is overlapped and connected to the junction of the rear section 1 of the door sill and the front section 2 of the rear longitudinal beam. The front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam are both groove-shaped openings facing upwards, and the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam are superimposed and overlapped as a whole, and a cavity structure is formed at the joint. As a preferred structure with better effect, a structural reinforcing plate 10 is arranged in the cavity formed at the joint between the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam. A rear side wall connector 4 is arranged laterally on the left side of the rear end of the front section 2 of the rear longitudinal beam, and a rear connecting plate 5 and a spare tire rear crossbeam connector 6 are arranged laterally on the right side of the rear end of the front section 2 of the rear longitudinal beam. After the rear suspension is installed, the rear connecting plate 5, the spare wheel rear beam connector 6 and the front section 2 of the rear longitudinal beam are connected to each other to form a tripod structure. The right side of the front part of the front section 2 of the rear longitudinal beam is provided with a lug crossbeam connector 7 transversely, and the right side of the front part of the threshold rear section 1 is provided with a rear floor front crossbeam connector 8 laterally. A closed cavity structure is integrally formed at the junction of the front crossbeam connector 8 of the rear floor and the rear section 1 of the door sill.
本实用新型各部件的功能原理如下：The functional principle of each part of the utility model is as follows:
门槛后段1、后纵梁前段2和后纵梁后段3连接为一个整体，分别起到与车门门槛连接和后纵梁支撑的作用。后纵梁前段2和后纵梁后段3均设置成槽状，且张口朝上，是针对实际使用过程中更多地来自上下方向的外力，可以增加两者的抗弯折强度，作为后纵梁具有更好的支撑安全性。后纵梁前段2和后纵梁后段3的叠合搭接处形成封闭的空腔结构，利用了薄壁封闭空腔原理来提升该连接处的机构强度和刚度，因为该连接处在实际使用时会作为悬挂安装点和悬挂弹簧安装点来使用，因此更强的结构强度和刚度的适宜性更强。后侧围连接件4用来将后纵梁与后侧围连接起来，后悬架安装后连接板5用来将后纵梁与后悬架连接起来，备胎后横梁连接件6用来连接后纵梁和备胎后横梁。后悬架安装后连接板5、备胎后横梁连接件6和后纵梁前段2三者形成一个三脚架的结构，可以提高整体的结构稳定性和强度，使得各自在功能发挥上的效果更好。吊耳横梁连接件7用来连接后纵梁与吊耳横梁，提高整体强度和稳定性，后地板前横梁连接件8用来连接门槛后段1与后地板前横梁。The rear section 1 of the door sill, the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam are connected as a whole, and respectively play the roles of connecting with the door sill and supporting the rear longitudinal beam. The front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam are both arranged in a groove shape, and the opening faces upwards, which is aimed at more external forces from the up and down directions in the actual use process, and can increase the bending strength of the two, as the rear Stringers provide better support security. A closed cavity structure is formed at the overlap joint between the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam, and the principle of thin-walled closed cavity is used to improve the strength and rigidity of the connection, because the connection is in the actual When used, it will be used as a suspension mounting point and a suspension spring mounting point, so the stronger structural strength and rigidity are more suitable. The rear side wall connecting piece 4 is used to connect the rear side beam with the rear side wall, the rear connecting plate 5 is used to connect the rear side beam with the rear suspension, and the rear cross beam connecting piece 6 is used to connect Rear side member and spare wheel rear cross member. The rear suspension is installed with the rear connecting plate 5, the spare wheel rear beam connector 6 and the front section of the rear longitudinal beam 2 to form a tripod structure, which can improve the overall structural stability and strength, and make each function better. . The lug beam connector 7 is used to connect the rear longitudinal beam and the lug beam to improve the overall strength and stability, and the rear floor front beam connector 8 is used to connect the threshold rear section 1 and the rear floor front beam.
在优选的实施结构上，设置了吊耳加强板9安装在门槛后段1和后纵梁前段2的连接处，用来增强该连接处的结构强度。因为吊耳横梁连接件7也连接在该连接处附近，因此实际使用时，该连接处会是一个应力集中点，通过设置吊耳加强板9以增强该处的强度，可以防止实际使用时出现断裂的问题。同样为了增强结构强度和稳定性，前横梁连接件8与门槛后段1的连接处也形成封闭的空腔结构。为了进一步增强后纵梁前段2和后纵梁后段3接头处的结构强度，在两者之间设置了结构加强板10。该结构加强板10的板面与后纵梁前段2和后纵梁后段3的板面保持平行，且该结构加强板10的整体形状呈倒“几”字形，与后纵梁前段2和后纵梁后段3的连接方式是叠合拼装式的连接，两侧连接处叠合在一起，加强受到外力的传递。In a preferred implementation structure, a lifting lug reinforcement plate 9 is installed at the joint between the rear section 1 of the door sill and the front section 2 of the rear longitudinal beam to enhance the structural strength of the joint. Because the lug beam connecting piece 7 is also connected near this joint, the joint will be a stress concentration point in actual use. By setting the lug reinforcement plate 9 to enhance the strength of this place, it can prevent the occurrence of stress in actual use. Fracture problem. Also in order to enhance the structural strength and stability, a closed cavity structure is also formed at the joint between the front beam connecting piece 8 and the rear section 1 of the door sill. In order to further enhance the structural strength of the joint between the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam, a structural reinforcing plate 10 is arranged between the two. The plate surface of the structural reinforcing plate 10 is kept parallel to the plate surfaces of the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam, and the overall shape of the structural reinforcing plate 10 is in the shape of an inverted "Ji", which is consistent with the front section 2 of the rear longitudinal beam and the rear section 3 of the rear longitudinal beam. The connection mode of the rear section 3 of the rear longitudinal beam is a superimposed and assembled connection, and the joints on both sides are superimposed together to strengthen the transmission of external forces.
以上详细描述了本实用新型的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本实用新型的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本实用新型的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .
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| CN201721248543.0U CN207191168U (en) | 2017-09-27 | 2017-09-27 | A kind of automobile rear longitudinal girder assembly structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204474A (en) * | 2018-11-09 | 2019-01-15 | 浙江众泰汽车制造有限公司 | A kind of automobile rear longitudinal girder assembly and automobile |
| CN112606912A (en) * | 2021-01-05 | 2021-04-06 | 重庆长安新能源汽车科技有限公司 | Rear longitudinal beam assembly and vehicle |
| CN113771947A (en) * | 2020-06-10 | 2021-12-10 | 广州汽车集团股份有限公司 | Automobile rear longitudinal beam structure, assembly and automobile |
| CN113942575A (en) * | 2021-11-22 | 2022-01-18 | 岚图汽车科技有限公司 | A rear longitudinal beam structure of an automobile |
-
2017
- 2017-09-27 CN CN201721248543.0U patent/CN207191168U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204474A (en) * | 2018-11-09 | 2019-01-15 | 浙江众泰汽车制造有限公司 | A kind of automobile rear longitudinal girder assembly and automobile |
| CN113771947A (en) * | 2020-06-10 | 2021-12-10 | 广州汽车集团股份有限公司 | Automobile rear longitudinal beam structure, assembly and automobile |
| CN112606912A (en) * | 2021-01-05 | 2021-04-06 | 重庆长安新能源汽车科技有限公司 | Rear longitudinal beam assembly and vehicle |
| CN113942575A (en) * | 2021-11-22 | 2022-01-18 | 岚图汽车科技有限公司 | A rear longitudinal beam structure of an automobile |
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