CN108791492A - A kind of double web structure semi-trailer longitudinal beams - Google Patents
A kind of double web structure semi-trailer longitudinal beams Download PDFInfo
- Publication number
- CN108791492A CN108791492A CN201710298185.2A CN201710298185A CN108791492A CN 108791492 A CN108791492 A CN 108791492A CN 201710298185 A CN201710298185 A CN 201710298185A CN 108791492 A CN108791492 A CN 108791492A
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- CN
- China
- Prior art keywords
- web
- wing plate
- upper flange
- lower wing
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
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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
A kind of double web longerons of semitrailer, including upper flange and lower wing plate, it is characterized in that：Left web and right web are installed between the upper flange and lower wing plate, between left web and right web between be divided into 30 ~ 100mm.Pressure-bearing web in semi-trailer longitudinal beam between upper flange and lower wing plate is become symmetrical two blocks of webs by the present invention by one block of web, it is this to change bending strength and the torsional strength enhancing so that longitudinal beam, the maximum stress of vehicle frame entirety and maximum distortion displacement reduce, the intrinsic frequency of vehicle frame improves, the covibration in driving process is reduced, semi-trailer longitudinal beam damage caused by ground injustice and dynamical system vibration is effectively reduced.
Description
Technical field
The present invention relates to special-purpose vehicle fields, are specifically related to a kind of double web structure semi-trailer longitudinal beams.
Background technology
Semitrailer is that axle is placed in behind vehicle's center of gravity, and the connection that horizontal and vertical power can be transmitted to tractor is housed
Tie the trailer of device, usually three axis semitrailers, a kind of transport and communications for the heavy type being connected with semi-mounted headstock by towing pin
Tool.
Semi-trailer longitudinal beam is the main load bearing component of semitrailer, and wherein longitudinal-beam web plate is welded into upper flange and lower wing plate
" I " fonts, web carry main power and torque.Only there are one the longerons of web, and bending stiffness and torsion stiffness are insufficient,
Under larger power load, moderate finite deformation and fatigue damage are easily caused.Additionally comprise the vehicle frame overall stiffness of meridosternous longeron
Relatively low, the first rank natural mode of vibration frequency is low, is easy to be encouraged lower generate to resonate by Uneven road in the process of moving.
Invention content
The object of the present invention is to provide a kind of simple in structure, easy to manufacture, intensity, bending stiffness and torsional rigidity are more
Big semi-trailer longitudinal beam structure.
In order to achieve the above object, the present invention adopts the following technical scheme that：A kind of double web structure semi-trailer longitudinal beams, including it is upper
Wing plate and lower wing plate, it is characterized in that：Left web and right web, left web and right abdomen are installed between the upper flange and lower wing plate
30 ~ 100mm is divided between plate, the left web and right web are arranged symmetrically, and left web, right web thickness are 4 ~ 10mm,
The left web, right web thickness difference be less than 5mm.
Pressure-bearing web in semi-trailer longitudinal beam between upper flange and lower wing plate is become left and right pair by the present invention by one block of web
The two blocks of webs claimed, it is this to change bending strength and the torsional strength enhancing so that longitudinal beam, the maximum stress of vehicle frame entirety
Reduce with maximum distortion displacement, the intrinsic frequency of vehicle frame improves, and reduces the covibration in driving process, effectively reduces ground not
Semi-trailer longitudinal beam damage caused by gentle dynamical system vibration.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the rearview of the present invention.
In figure：Upper flange 1, lower wing plate 2, left web 3, right web 4.
Specific implementation mode
Below in conjunction with description of the drawings, the present invention is described in further detail with specific implementation mode：
Referring to Fig. 1, a kind of double web structure semi-trailer longitudinal beams, including longeron upper flange 1, longeron lower wing plate 2, left web 3 and the right side
Web 4.Longeron is the hollow-core construction being welded by steel plate, and upper flange 1 is straight, and lower wing plate 2 is at broken line.Longeron is in integrally to get higher
Degree form, as shown in attached drawing 2 and attached drawing 3, anterior and posterior height is different, and left web 3 and right web 4 are symmetrically arranged, 3 He of left web
Be divided into 70mm between right web 4, left web 3, right web 4 thickness difference be less than 5mm.
The present invention is not limited only to through type vehicle frame, equally applicable for staged and Semitrailer with Concave Beams.In addition, institute
There is straight frame longeron can i shaped cross section longeron be changed to structure of the invention.
Claims (1)
1. a kind of double web structure semi-trailer longitudinal beams, including upper flange（1）And lower wing plate（2）, it is characterized in that：The upper flange
（1）And lower wing plate（2）Between left web is installed（3）With right web（4）, left web（3）With right web（4）Between between be divided into
30 ~ 100mm, the left web（3）With right web（4）It is arranged symmetrically, left web（3）, right web（4）Thickness is 4 ~ 10mm, institute
State left web（3）, right web（4）Thickness difference be less than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298185.2A CN108791492A (en) | 2017-04-30 | 2017-04-30 | A kind of double web structure semi-trailer longitudinal beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298185.2A CN108791492A (en) | 2017-04-30 | 2017-04-30 | A kind of double web structure semi-trailer longitudinal beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108791492A true CN108791492A (en) | 2018-11-13 |
Family
ID=64053243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298185.2A Pending CN108791492A (en) | 2017-04-30 | 2017-04-30 | A kind of double web structure semi-trailer longitudinal beams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108791492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470019A (en) * | 2020-03-02 | 2020-07-31 | 中国舰船研究设计中心 | Marine double-web vibration isolation and noise reduction base |
-
2017
- 2017-04-30 CN CN201710298185.2A patent/CN108791492A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470019A (en) * | 2020-03-02 | 2020-07-31 | 中国舰船研究设计中心 | Marine double-web vibration isolation and noise reduction base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |