CN114408028B - Connecting structure for carriage underframe - Google Patents
Connecting structure for carriage underframe Download PDFInfo
- Publication number
- CN114408028B CN114408028B CN202210212183.8A CN202210212183A CN114408028B CN 114408028 B CN114408028 B CN 114408028B CN 202210212183 A CN202210212183 A CN 202210212183A CN 114408028 B CN114408028 B CN 114408028B
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- CN
- China
- Prior art keywords
- longeron
- crossbeam
- cross beam
- reinforcing plate
- longitudinal beam
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 47
- 238000005728 strengthening Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003351 stiffener Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Body Structure For Vehicles (AREA)
Abstract
A connection structure for carriage chassis, the carriage chassis constitute by a plurality of crisscross crossbeams and longeron that link to each other, be equipped with connection structure between crossbeam and the longeron, connection structure include fastener and support piece, the fastener is used for connecting crossbeam and longeron, the diapire of fastener and crossbeam between be equipped with the crossbeam reinforcing plate, be equipped with the longeron reinforcing plate between the roof of fastener and longeron, support piece and the side fixed connection of longeron, the top surface of support piece supports the bottom surface of crossbeam. The connecting structure improves the strength durability of the carriage underframe structure by changing the connecting form of the cross beam and the longitudinal beam in the carriage underframe, and can realize the reliable connection of the cross beam and the longitudinal beam without using a plurality of fasteners, so that the connecting structure is convenient to install, reduces the weight and the manufacturing cost of the carriage and improves the production efficiency of the carriage.
Description
Technical Field
The invention relates to the field of carriage manufacture, in particular to a connecting structure for a carriage underframe.
Background
The common carriage chassis at present comprises a plurality of cross beams and longitudinal beams which are connected in a staggered way, and the cross beams and the longitudinal beams can be connected in a welding mode or in an assembling mode. However, these two connection methods have the following problems: (1) For welded connection, the fatigue strength of the welded part is lower than that of other parts, so that the welded joint of the carriage base is easy to crack in the use process; (2) For the assembled connection, the transmission path of the load in the existing assembled connection is not good, the cross beam and the longitudinal beam cannot be directly pressed to transmit the load, and the existing assembled connection can realize the reliable connection of the cross beam and the longitudinal beam by using a plurality of fasteners, so that the weight and the manufacturing cost of a carriage are increased, and the lightweight design of the carriage is influenced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a connecting structure for a carriage underframe, wherein the carriage underframe consists of a plurality of cross beams and longitudinal beams which are connected in a staggered way, the connecting structure is arranged between the cross beams and the longitudinal beams and comprises a fastener and a supporting piece, the fastener is used for connecting the cross beams and the longitudinal beams, a cross beam reinforcing plate is arranged between the fastener and the bottom wall of the cross beam, a longitudinal beam reinforcing plate is arranged between the fastener and the top wall of the longitudinal beam, cross beam reinforcing ribs and longitudinal beam reinforcing ribs are respectively arranged on the cross beam reinforcing plate and the longitudinal beam reinforcing plate, the cross beam reinforcing ribs are connected with the inner wall of the cross beam, the longitudinal beam reinforcing ribs are connected with the inner wall of the longitudinal beam, the supporting piece is fixedly connected with the side face of the longitudinal beam, and the top face of the supporting piece props against the bottom face of the cross beam.
Furthermore, the cross beam and the longitudinal beam are both in profile structures.
Still further, the both sides of crossbeam reinforcing plate all are equipped with the crossbeam strengthening rib of vertical placement, and the side of crossbeam strengthening rib links to each other with the lateral wall of crossbeam, and the top surface of crossbeam strengthening rib links to each other with the roof of crossbeam.
Furthermore, the beam reinforcing plate and the beam reinforcing rib are integrated.
Still further, the both sides of longeron reinforcing plate all are equipped with the longeron strengthening rib of vertical placing, and the side of longeron strengthening rib links to each other with the lateral wall of longeron, and the bottom surface of longeron strengthening rib links to each other with the diapire of longeron.
Further, the longitudinal beam reinforcing plate and the longitudinal beam reinforcing rib are integrated.
Further, the top surface of the support member is connected to the bottom surface of the cross beam.
The beneficial effects are that: the invention discloses a connecting structure for a carriage underframe, which improves the strength durability of the carriage underframe structure by changing the connecting form of a cross beam and a longitudinal beam in the carriage underframe, can realize the reliable connection of the cross beam and the longitudinal beam without using a plurality of fasteners, is convenient to install, reduces the weight and the manufacturing cost of the carriage and improves the production efficiency of the carriage.
Drawings
FIG. 1 is a schematic view of the structure of a cabin chassis;
fig. 2 is a front view of the connection structure;
FIG. 3 is a bottom view of the connection structure;
FIG. 4 is a rear view of the connection structure;
FIG. 5 is a graph of the results of a stress analysis of a truck bed chassis of the prior art;
FIG. 6 is a graph of the results of stress analysis of a truck bed chassis of the present application;
in the figure: 1. the beam 2, the longitudinal beam 3, the connecting structure 4, the fastener 5, the beam reinforcing plate 6, the longitudinal beam reinforcing plate 7, the beam reinforcing rib 8, the longitudinal beam reinforcing rib 9 and the supporting piece.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are intended to be illustrative only and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 6, a connection structure for a carriage underframe, the carriage underframe comprises a plurality of cross beams 1 and longitudinal beams 2 which are connected in a staggered way, a connection structure 3 is arranged between the cross beams 1 and the longitudinal beams 2, the connection structure 3 comprises a fastener 4 and a supporting piece 9, the fastener 4 is used for connecting the cross beams 1 and the longitudinal beams 2, a cross beam reinforcing plate 5 is arranged between the fastener 4 and the bottom wall of the cross beam 1, a longitudinal beam reinforcing plate 6 is arranged between the fastener 4 and the top wall of the longitudinal beam 2, cross beam reinforcing ribs 7 and longitudinal beam reinforcing ribs 8 are respectively arranged on the cross beam reinforcing plate 5 and the longitudinal beam reinforcing plate 6, the cross beam reinforcing ribs 7 are connected with the inner wall of the cross beam 1, the longitudinal beam reinforcing ribs 8 are connected with the inner wall of the longitudinal beam 2, the supporting piece 9 is fixedly connected with the side face of the longitudinal beam 2, and the top face of the supporting piece 9 is propped against the bottom face of the cross beam 1.
In this embodiment, the cross beam 1 and the longitudinal beam 2 are both in a profile structure.
In this embodiment, the two sides of the beam reinforcing plate 5 are respectively provided with a beam reinforcing rib 7 which is vertically placed, the side surfaces of the beam reinforcing ribs 7 are connected with the side walls of the beam 1, and the top surfaces of the beam reinforcing ribs 7 are connected with the top wall of the beam 1.
In this embodiment, the beam stiffener 5 and the beam stiffener 7 are an integral part.
In this embodiment, the two sides of the girder reinforcing plate 6 are respectively provided with a girder reinforcing rib 8 which is vertically placed, the side surfaces of the girder reinforcing ribs 8 are connected with the side walls of the girders 2, and the bottom surfaces of the girder reinforcing ribs 8 are connected with the bottom walls of the girders 2.
In this embodiment, the stringer stiffener 6 and the stringer stiffener 8 are an integral part.
In this embodiment, the top surface of the supporting member 9 is connected to the bottom surface of the cross beam 1.
The connecting structure improves the strength durability of the carriage underframe structure by changing the connecting form of the cross beam and the longitudinal beam in the carriage underframe, and can realize the reliable connection of the cross beam and the longitudinal beam without using a plurality of fasteners, so that the connecting structure is convenient to install, reduces the weight and the manufacturing cost of the carriage and improves the production efficiency of the carriage.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. The connecting structure is characterized in that the connecting structure comprises a fastener and a supporting piece, the fastener is used for connecting the cross beam and the longitudinal beam, a cross beam reinforcing plate is arranged between the bottom wall of the fastener and the bottom wall of the cross beam, a longitudinal beam reinforcing plate is arranged between the fastener and the top wall of the longitudinal beam, cross beam reinforcing ribs and longitudinal beam reinforcing ribs are respectively arranged on the cross beam reinforcing plate and the longitudinal beam reinforcing plate, the cross beam reinforcing ribs are connected with the inner wall of the cross beam, the longitudinal beam reinforcing ribs are connected with the inner wall of the longitudinal beam, the supporting piece is fixedly connected with the side face of the longitudinal beam, and the top face of the supporting piece props against the bottom face of the cross beam;
the crossbeam and longeron be the section bar structure, the both sides of crossbeam reinforcing plate all are equipped with the crossbeam strengthening rib of vertical placing, the side of crossbeam strengthening rib links to each other with the lateral wall of crossbeam, the top surface of crossbeam strengthening rib links to each other with the roof of crossbeam, crossbeam reinforcing plate and crossbeam strengthening rib part as an organic whole, the both sides of longeron reinforcing plate all are equipped with the longeron strengthening rib of vertical placing, the side of longeron strengthening rib links to each other with the lateral wall of longeron, the bottom surface of longeron strengthening rib links to each other with the diapire of longeron, longeron strengthening plate and longeron strengthening rib part as an organic whole, the top surface of support piece links to each other with the bottom surface of crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212183.8A CN114408028B (en) | 2022-02-28 | 2022-02-28 | Connecting structure for carriage underframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212183.8A CN114408028B (en) | 2022-02-28 | 2022-02-28 | Connecting structure for carriage underframe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114408028A CN114408028A (en) | 2022-04-29 |
| CN114408028B true CN114408028B (en) | 2023-06-16 |
Family
ID=81264539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210212183.8A Active CN114408028B (en) | 2022-02-28 | 2022-02-28 | Connecting structure for carriage underframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114408028B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900664A (en) * | 2022-05-17 | 2022-08-12 | 宁夏玖倍尔农业发展有限公司 | A supervisory equipment for beasts and birds health status |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4015085B2 (en) * | 2003-08-26 | 2007-11-28 | 本田技研工業株式会社 | Method for assembling rear suspension support structure for vehicle |
| CN201989849U (en) * | 2011-03-23 | 2011-09-28 | 柳州市旺禾机械有限责任公司 | Camion compartment chassis |
| CN105774915B (en) * | 2016-05-23 | 2017-12-29 | 重庆长安汽车股份有限公司 | Afterwards joist assembly and its with rear floor, the attachment structure of trailing wheel bulge |
| CN106394684A (en) * | 2016-11-16 | 2017-02-15 | 十堰市明亚工贸有限公司 | High-strength automobile frame |
| CN206417085U (en) * | 2016-12-13 | 2017-08-18 | 北汽黑豹（威海）汽车有限公司 | A kind of new container framework beam of pickup truck and longitudinal beam structure attachment structure |
| CN206856802U (en) * | 2017-04-28 | 2018-01-09 | 陕西重型汽车有限公司 | Truck with loading crane and thereon dress loop wheel machine and chassis frame attachment structure |
| CN207190987U (en) * | 2017-09-05 | 2018-04-06 | 大运汽车股份有限公司 | Vehicle rear protecting |
| CN208774877U (en) * | 2018-06-26 | 2019-04-23 | 青岛康泰集团铝业有限公司 | Compartment compartment bottom structure with triangular support configurations |
| CN208760364U (en) * | 2018-08-12 | 2019-04-19 | 浙江爱特新能源汽车有限公司 | A kind of bracket of trailing arm of car assembly |
| CN213035904U (en) * | 2020-06-24 | 2021-04-23 | 观致汽车有限公司 | Vehicle body structure assembly of vehicle and vehicle |
| CN112297811A (en) * | 2020-11-05 | 2021-02-02 | 东风柳州汽车有限公司 | New energy automobile battery package quick change device |
| CN214356304U (en) * | 2021-02-05 | 2021-10-08 | 山东鑫能昆冈轻量化装备有限公司 | Carriage chassis structure and carriage |
| CN215794026U (en) * | 2021-05-10 | 2022-02-11 | 合肥丰华汽车零部件有限公司 | New energy automobile net format aluminum alloy sub vehicle frame |
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- 2022-02-28 CN CN202210212183.8A patent/CN114408028B/en active Active
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| Publication number | Publication date |
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| CN114408028A (en) | 2022-04-29 |
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