WO2012174793A1 - 车身骨架结构 - Google Patents

车身骨架结构 Download PDF

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Publication number
WO2012174793A1
WO2012174793A1 PCT/CN2011/079323 CN2011079323W WO2012174793A1 WO 2012174793 A1 WO2012174793 A1 WO 2012174793A1 CN 2011079323 W CN2011079323 W CN 2011079323W WO 2012174793 A1 WO2012174793 A1 WO 2012174793A1
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WIPO (PCT)
Prior art keywords
beams
module
lower chassis
main
frame
Prior art date
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Ceased
Application number
PCT/CN2011/079323
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English (en)
French (fr)
Inventor
陈杰龙
金爱君
李宏华
韦兴民
吴成明
赵福全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely Automobile Research Institute Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Publication of WO2012174793A1 publication Critical patent/WO2012174793A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
    • B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/07—Understructures, i.e. chassis frame on which a vehicle body may be mounted wide-hipped frame type, i.e. a wide box-shaped mid portion with narrower sections extending from said mid portion in both fore and aft directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/08—Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members

Definitions

  • the present invention relates to a composite frame structure of a vehicle skeleton, that is, a carrier body structure, and more particularly to a vehicle body skeleton structure of a miniature vehicle.
  • Chinese Patent Publication No. CN100404347C discloses a full-loading vehicle body which constitutes an integral frame for a vehicle front wall skeleton, a rear frame, a left side frame, a right side frame, a roof frame and a chassis.
  • the new type of body structure through the various columns, using the column, or stringer, or diagonal bracing, or beam, or curved beam, or various panels to make the vehicle skeleton front and rear through, connected up and down, left and right, the skeleton beam A closed force ring structure is formed.
  • the full load body is heavier and it is difficult to ensure sufficient strength due to the complicated structure. Summary of the invention
  • An object of the present invention is to provide a skeleton structure in which a steel pipe form is used in place of a conventional steel plate welded structure to solve the problem of large weight and low strength of a body frame existing in the background art.
  • the technical solution of the present invention is: a body frame structure, the skeleton unit is made of a steel pipe, the body frame structure includes a lower chassis module and an upper frame module, the lower chassis module and the upper vehicle
  • the connection point of the frame module is a fixed connection
  • the lower chassis module is thicker than the steel pipe used in the upper frame module.
  • the steel pipe form is used to replace the traditional steel plate welded structure, the steel pipe skeleton is light in weight, and the skeleton adopts a crisscross connection form, which can withstand higher The strength and load meet the requirements of light weight and good strength.
  • the lower chassis module comprises two main longitudinal beams extending parallel to each other, the front and rear sections of the two main longitudinal beams are changed relative to the middle section, and the front beams are arranged between the front sections of the two main longitudinal beams.
  • a middle beam is arranged between the middle sections of the two main longitudinal beams, and a rear beam is arranged between the rear sections of the two main longitudinal beams.
  • the criss-crossing connection structure has better strength, and the lower part of the lower chassis sinks to form a drop, so that the whole chassis is divided into three platforms: front, middle and rear.
  • the front platform is for the front machine
  • the middle platform is for driving and passengers.
  • the platform is the rear compartment.
  • the number of the front cross member, the middle cross member and the rear cross member are at least two and are kept equidistantly distributed.
  • the lower chassis module is to form three load-bearing platforms, and each load-bearing platform is supported by at least two beams, the number of the front beam, the middle beam and the rear beam are at least two, and the equidistant distribution is maintained, so that the chassis can be made.
  • the module has a uniform bearing capacity.
  • the ends of the intermediate beam extend beyond the span of the two main longitudinal members and are each connected to the auxiliary longitudinal members on both sides.
  • the central platform can be enlarged, that is, the area of the driving and passenger guns.
  • the upper frame module comprises two deformed main side beams extending in parallel, at least two upper curved beams are arranged between the two main side beams, and the two main side beams are The front end is fixed with a front curved beam, the front curved beam front portion is provided with a supporting vertical beam, and the front end, the rear end and the middle portion of the two main side beams are provided with a plurality of supporting vertical beams, and the bottom of the supporting vertical beam is The end is fixedly attached to the main longitudinal beam or the auxiliary longitudinal beam of the lower chassis module.
  • connection between the steel pipes is welding.
  • the welding is integrated with better strength, better stability and easy processing.
  • the utility model has the beneficial effects of the steel body skeleton structure: the steel pipe form is used instead of the traditional steel plate welding structure, the steel pipe skeleton is light in weight, and the skeleton adopts a crisscross connection form, can withstand high strength and load, and satisfies the weight reduction. It is required to have better strength.
  • FIG. 1 is a schematic structural view of a body frame structure of the present invention
  • a body frame structure As shown in FIG. 1 , a body frame structure, the skeleton unit is made of a steel pipe, and is welded into a skeleton structure by criss-crossing, the body frame structure includes a lower chassis module and an upper frame module, and the lower chassis The connection points of the module and the upper frame module are also fixedly connected by welding, and the lower chassis module has a larger diameter than the steel pipe used for the upper frame module.
  • the lower chassis module comprises two main longitudinal beams 1 extending parallel to each other, and the front and rear sections of the two main longitudinal beams 1 are changed to form a drop with respect to the middle section, and between the front sections of the two main longitudinal beams 1
  • the length of the beam 3 is greater than the span of the two main longitudinal beams 1, and one auxiliary longitudinal beam 5 is provided on each of the left and right sides of the two main longitudinal beams 1, and the two ends of the intermediate beam 3 are respectively welded to the two auxiliary longitudinal members.
  • On the beam 5, the front cross member 2, the middle cross member 3 and the rear cross member 4 are kept equidistantly distributed.
  • the upper frame module comprises two deformed main side beams 6, which extend in parallel, and at least four upper curved beams 7 are arranged between the two main side beams 6, wherein the two upper curved beams 7 are located The two ends of the main side beam 6 are located at the middle of the main side beam 6.
  • the front ends of the two main side beams 6 are fixed with a front curved beam 8, and the front curved beam 8 is integrally U-shaped, the two ends of which are respectively welded to the front ends of the two main side beams 6, the front part of the front curved beam 8, the front end, the rear end and the middle part of the two main side beams are welded with the supporting vertical beam 9, the support
  • the bottom end of the vertical beam 9 is welded to the main longitudinal beam 1 or the auxiliary longitudinal beam 5 of the lower chassis module.
  • the number of supporting vertical beams 9 can be determined according to the actual weight and strength of the vehicle body. In this embodiment, the front bending is performed.
  • the number of supporting vertical beams of the front part of the beam 8 is two, and the left and right sides are separated.
  • the number of supporting vertical beams of the front end of each main side beam 6 is three, and the shape is three-legged support, and the left and right sides are two. There are reinforcing beams 10 between the supporting vertical beams 9 on the side, and the number of supporting vertical beams 9 in the middle of each main side beam 6 is one, and the bottom end is welded on the same side.
  • the steel pipe form is used to replace the traditional steel plate welded structure.
  • the steel pipe skeleton is light in weight, and the skeleton adopts a crisscross connection form, which can withstand high strength and load, and meets the requirements of light weight and good strength.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种骨架单元均为钢管制成的车身骨架结构包括下部底盘模块和上部车架模块，所述下部底盘模块和上部车架模块的连接点为固定连接，所述下部底盘模块比上部车架模块所用的钢管要粗；本发明采用钢管代替传统的钢板拼焊结构，钢管骨架重量轻，同时骨架采用纵横交错的连接形式，能承受较高的强度及载荷，既满足了轻量化的要求，有具有较好的强度，适用于微型车的车身骨架结构。

Description

车身骨架结构 本申请要求于 2011 年 6 月 23 日提交中国专利局、 申请号为 201120215427.5、 发明名称为"车身骨架结构"的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及一种车辆骨架的组合架体结构即承载车身结构， 特别是涉 及一种微型车辆的车身骨架结构。
背景技术
随着汽车行业的快速发展， 出现了汽车能源紧张和道路拥挤等问题， 随之演变出众多的小型汽车， 主要以节能减排为目的， 但传统的车身结构 都采用钢板拼焊成车身骨架， 骨架重量难以降低， 因此迫切需要重量较轻 的车身结构， 以实现节能的目的。
中国专利公告号 CN100404347C, 公开了一种全承载车身， 该全承载 车身将整车用前围骨架、 后围骨架、 左侧围骨架、 右侧围骨架、 顶盖骨架 和底架构成一种整体框架式的新型车身结构形式，通过各节点， 利用立柱、 或纵梁、 或斜撑、 或横梁、 或弯梁、 或各种板件使整车骨架前后贯通， 上 下相连， 左右相接， 骨架梁形成封闭的力环结构。 该全承载车身重量较重 且由于结构复杂难以保证足够的强度。 发明内容
本发明的目的在于提供一种采用钢管形式代替传统的钢板拼焊结构的 骨架结构， 以解决背景技术中存在的车身骨架重量大和强度低的问题。
为了实现上述目的， 本发明的技术方案是： 一种车身骨架结构， 其骨 架单元均为钢管做成， 所述车身骨架结构包括下部底盘模块和上部车架模 块， 所述下部底盘模块和上部车架模块的连接点为固定连接， 所述下部底 盘模块比上部车架模块所用钢管要粗。 采用钢管形式代替传统的钢板拼焊 结构， 钢管骨架重量轻， 同时骨架采用纵横交错的连接形式， 能承受较高 的强度及载荷， 既满足了轻量化的要求又具备较好的强度。
作为优选， 所述下部底盘模块包括两个相互平行延伸的主纵梁， 所述 两个主纵梁前段和后段相对中段换起， 所述两个主纵梁的前段之间设有前 横梁， 两个主纵梁的中段之间设有中横梁， 两个主纵梁的后段之间设有后 横梁。 纵横交错的连接结构强度较好， 下部底盘的中部下沉形成落差， 这 样将整个底盘分成前、 中、 后三个平台， 前部平台为前机抢， 中部平台为 驾驶抢和乘客抢， 后部平台为后车厢。
作为优选， 所述前横梁、 中横梁和后横梁的个数均为至少两个， 并且 保持等距分布。 由于下部底盘模块要形成三个承载平台， 而每个承载平台 都要至少两个横梁支撑， 所以前横梁、 中横梁、 后横梁的个数均为至少两 个， 保持等距分布， 可使底盘模块承受力均匀。
作为优选， 所述中横梁的两端超出两个主纵梁的跨度并各自连接到两 侧的辅纵梁上。 通过增加中横梁的长度， 可扩大中部平台， 即驾驶抢和乘 客枪的面积。
作为优选，所述上部车架模块包括两个换形的主侧梁，二者平行伸展， 所述两个主侧梁之间设有至少两个上部弯梁， 所述两个主侧梁的前端固定 有前部弯梁， 该前部弯梁前部设有支撑竖梁， 所述两个主侧梁的前端、 后 端以及中部均设有若干支撑竖梁， 所述支撑竖梁的底端固定连接到下部底 盘模块的主纵梁或辅纵梁上。
作为优选， 所述钢管之间的连接均为焊接。 焊接为一体的强度更好， 稳定性也更好， 且容易加工。
本发明车身骨架结构的有益效果是： 采用钢管形式代替传统的钢板拼 焊结构， 钢管骨架重量轻， 同时骨架采用纵横交错的连接形式， 能承受较 高的强度及载荷， 既满足了轻量化的要求又具备较好的强度。
附图说明
图 1为本发明车身骨架结构的一种结构示意图；
图中标号分别为： 1.主纵梁 2.前横梁 3.中横梁 4.后横梁 5.辅纵梁 6. 主侧梁 7.上部弯梁 8.前部弯梁 9.支撑竖梁 10.加强梁 具体实施方式
下面通过实施例并结合附图对本发明的技术方案作进一步的具体描 述。
实施例：
如图 1所示， 一种车身骨架结构， 其骨架单元均为钢管做成， 采用纵 横交错的方式焊接成骨架结构， 所述车身骨架结构包括下部底盘模块和上 部车架模块， 所述下部底盘模块和上部车架模块的连接点也采用焊接的方 式固定连接， 所述下部底盘模块比上部车架模块所用钢管的口径大。 所述 下部底盘模块包括两个相互平行延伸的主纵梁 1 , 所述两个主纵梁 1的前 段和后段相对于中段换起形成落差， 所述两个主纵梁 1的前段之间焊接有 两个前横梁 2, 两个主纵梁 1的中段之间焊接有四个中横梁 3 , 两个主纵梁 1的后段之间焊接有两个后横梁 4,所述四个中横梁 3的长度大于两个主纵 梁 1的跨度， 在两个主纵梁 1的左右两侧各有一个辅纵梁 5 , 并且所述中 横梁 3的两末端各自焊接到这两个辅纵梁 5上， 所述前横梁 2、 中横梁 3 和后横梁 4之间保持等距分布。
所述上部车架模块包括两个换形的主侧梁 6, 二者平行伸展， 所述两 个主侧梁 6之间设有至少四个上部弯梁 7, 其中两个上部弯梁 7位于主侧 梁 6的两末端， 另外两个上部弯梁 7位于主侧梁 6的中部位置， 所述两个 主侧梁 6的前端固定有前部弯梁 8, 该前部弯梁 8整体呈 U型， 其两末端 分别与两个主侧梁 6的前端焊接，前部弯梁 8的前部、 两个主侧梁的前端、 后端以及中部均焊接有支撑竖梁 9, 所述支撑竖梁 9的底端焊接到下部底 盘模块的主纵梁 1或辅纵梁 5上， 支撑竖梁 9的个数可根据实际车身重量 和强度需要而定， 在本实施例中， 前部弯梁 8前部的支撑竖梁 9个数为两 个， 分居左右两侧， 每个主侧梁 6的前端的支撑竖梁 9个数为三个， 其形 态呈三脚支撑状， 且在左右两侧的支撑竖梁 9之间设有加强梁 10, 每个主 侧梁 6的中部的支撑竖梁 9个数为一个，其底端焊接在同侧的辅纵梁 5上， 每个主侧梁 6的后端的支撑竖梁 9个数为四个， 形态为其中一个呈竖直状 态， 另外三个在其底部呈三脚支撑状。 采用钢管形式代替传统的钢板拼焊结构， 钢管骨架重量轻， 同时骨架 采用纵横交错的连接形式， 能承受较高的强度及载荷， 既满足了轻量化的 要求又具备较好的强度。
上述所描述的具体实施例仅仅是对本发明的构思作优选举例说明。 凡 在本发明的精神和原则之内所做的任何修改或补充或等同替代， 均应包含 在本发明权利要求的保护范围之内。

Claims

权 利 要 求
1、 一种车身骨架结构， 其特征在于： 其骨架单元均为钢管做成， 所述 车身骨架结构包括下部底盘模块和上部车架模块， 所述下部底盘模块和上 部车架模块的连接点为固定连接， 所述下部底盘模块比上部车架模块所用 钢管的口径大。
2、根据权利要求 1所述的车身骨架结构， 其特征在于： 所述下部底盘 模块包括两个相互平行延伸的主纵梁（ 1 ), 所述两个主纵梁（ 1 )前段和后 段相对中段换起， 所述两个主纵梁（1)的前段之间设有前横梁（2), 两个 主纵梁（1) 的中段之间设有中横梁（3), 两个主纵梁（1) 的后段之间设 有后横梁（4)。
3、根据权利要求 2所述的车身骨架结构，其特征在于：所述前横梁（ 2 )、 中横梁（3)和后横梁（4) 的个数均为至少两个， 并且保持等距分布。
4、根据权利要求 2或 3所述的车身骨架结构， 其特征在于： 所述中横 梁（ 3 )的两端超出两个主纵梁（ 1 )的跨度并各自连接到两侧的辅纵梁（ 5 ) 上。
5、根据权利要求 4所述的车身骨架结构， 其特征在于： 所述上部车架 模块包括两个换形的主侧梁（6), 二者平行伸展， 所述两个主侧梁（6)之 间设有至少两个上部弯梁（7), 所述两个主侧梁（6)的前端固定有前部弯 梁（8), 该前部弯梁（8)前部设有支撑竖梁（9), 所述两个主侧梁（6) 的前端、 后端以及中部均设有若干支撑竖梁（9), 所述支撑竖梁（9)的底 端固定连接到下部底盘模块的主纵梁（1)或辅纵梁（5)上。
6、根据权利要求 1所述的车身骨架结构， 其特征在于： 所述钢管之间 的连接均为焊接。
PCT/CN2011/079323 2011-06-23 2011-09-05 车身骨架结构 Ceased WO2012174793A1 (zh)

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