CN203958319U - A kind of two web structure semi-trailer longitudinal beam - Google Patents
A kind of two web structure semi-trailer longitudinal beam Download PDFInfo
- Publication number
- CN203958319U CN203958319U CN201420426344.4U CN201420426344U CN203958319U CN 203958319 U CN203958319 U CN 203958319U CN 201420426344 U CN201420426344 U CN 201420426344U CN 203958319 U CN203958319 U CN 203958319U
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- China
- Prior art keywords
- web
- semi
- longitudinal beam
- trailer longitudinal
- upper flange
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Abstract
A kind of two web structure semi-trailer longitudinal beams, comprise upper flange and lower wing plate, it is characterized in that: left web and right web are installed between described upper flange and lower wing plate, between left web and right web, are spaced apart 30 ~ 100mm.The utility model becomes the pressure-bearing web between upper flange in semi-trailer longitudinal beam and lower wing plate into symmetrical two blocks of webs by a web, this change strengthens the bending strength of chassis side rail and torsional strength, the maximum stress of vehicle frame entirety and maximum distortion displacement reduce, the natural frequency of vehicle frame improves, reduce the resonance effect in driving process, effectively reduce the not gentle power system in ground and vibrate the semi-trailer longitudinal beam damage causing.
Description
Technical field
The present invention relates to special vehicle field, specifically relate to a kind of two web structure semi-trailer longitudinal beam.
Background technology
Superimposed trailer is that axletree is placed in after vehicle's center of gravity, and the trailer that horizontal and vertical power can be delivered to the hookup of tractor truck is housed, and is generally three axle superimposed trailers, the transport vehicle of a kind of heavy type being connected with semi-mounted headstock by towing pin.
Semi-trailer longitudinal beam is the main load bearing component of superimposed trailer, and wherein longitudinal-beam web plate and upper flange and lower wing plate are welded into " work " font, and web is carrying main force and moment.Only have the longeron of a web, bending stiffness and torsional stiffness deficiency, under larger power load, easily cause moderate finite deformation and fatigue damage.The vehicle frame integral rigidity that comprises in addition meridosternous longeron is lower, and the first rank natural mode of vibration frequency is low, is easily subject in the process of moving the lower resonance that produces of Uneven road excitation.
Summary of the invention
The object of this invention is to provide one simple in structure, be easy to processing and manufacturing, the semi-trailer longitudinal beam structure that intensity, bending stiffness and torsion stiffness are larger.
For realizing above object, the present invention adopts following technical scheme: a kind of two web structure semi-trailer longitudinal beams, comprise upper flange and lower wing plate, it is characterized in that: left web and right web are installed between described upper flange and lower wing plate, between left web and right web, are spaced apart 30 ~ 100mm.
Described left web and right web are arranged symmetrically with, and left web, right web thickness are 4 ~ 10mm.
The thickness difference of described left web, right web is less than 5mm.
The present invention becomes the pressure-bearing web between upper flange in semi-trailer longitudinal beam and lower wing plate into symmetrical two blocks of webs by a web, this change strengthens the bending strength of chassis side rail and torsional strength, the maximum stress of vehicle frame entirety and maximum distortion displacement reduce, the natural frequency of vehicle frame improves, reduce the resonance effect in driving process, effectively reduce the not gentle power system in ground and vibrate the semi-trailer longitudinal beam damage causing.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is front elevation of the present invention.
Fig. 3 is back view of the present invention.
In figure: upper flange 1, lower wing plate 2, left web 3, right web 4.
Detailed description of the invention
Below in conjunction with brief description of the drawings and detailed description of the invention, the present invention is further detailed explanation:
Referring to Fig. 1, a kind of two web structure semi-trailer longitudinal beams, comprise longeron upper flange 1, longeron lower wing plate 2, left web 3 and right web 4.Longeron is the hollow structure being formed by Plate Welding, and upper flange 1 is straight, 2 one-tenth broken lines of lower wing plate.Longeron entirety is And of Varying Depth form, as shown in accompanying drawing 2 and accompanying drawing 3, and anterior and posterior height difference, left web 3 and right web 4 are symmetrically arranged, and between left web 3 and right web 4, are spaced apart 70mm, and the thickness difference of left web 3, right web 4 is less than 5mm.
The present invention is not limited only to through type vehicle frame, applicable equally for staged and Semitrailer with Concave Beams.In addition, all straight frame longerons all can change i shaped cross section longeron into structure of the present invention.
Claims (3)
1. a two web structure semi-trailer longitudinal beam, comprise upper flange (1) and lower wing plate (2), it is characterized in that: left web (3) and right web (4) are installed between described upper flange (1) and lower wing plate (2), between left web (3) and right web (4), are spaced apart 30 ~ 100mm.
2. according to claim 1 pair of web structure semi-trailer longitudinal beam, is characterized in that: described left web (3) and right web (4) are arranged symmetrically with, and left web (3), right web (4) thickness are 4 ~ 10mm.
3. according to claim 2 pair of web structure semi-trailer longitudinal beam, is characterized in that: the thickness difference of described left web (3), right web (4) is less than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426344.4U CN203958319U (en) | 2014-07-31 | 2014-07-31 | A kind of two web structure semi-trailer longitudinal beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426344.4U CN203958319U (en) | 2014-07-31 | 2014-07-31 | A kind of two web structure semi-trailer longitudinal beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203958319U true CN203958319U (en) | 2014-11-26 |
Family
ID=51918941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420426344.4U Expired - Fee Related CN203958319U (en) | 2014-07-31 | 2014-07-31 | A kind of two web structure semi-trailer longitudinal beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203958319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194225A (en) * | 2019-06-14 | 2019-09-03 | 沛县迅驰专用车辆制造有限公司 | It is a kind of to bear the semitrailer that pressure is strong, support strength is high |
-
2014
- 2014-07-31 CN CN201420426344.4U patent/CN203958319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194225A (en) * | 2019-06-14 | 2019-09-03 | 沛县迅驰专用车辆制造有限公司 | It is a kind of to bear the semitrailer that pressure is strong, support strength is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20180731 |