CN203460935U - Semi-trailer longitudinal beam - Google Patents
Semi-trailer longitudinal beam Download PDFInfo
- Publication number
- CN203460935U CN203460935U CN201320291335.4U CN201320291335U CN203460935U CN 203460935 U CN203460935 U CN 203460935U CN 201320291335 U CN201320291335 U CN 201320291335U CN 203460935 U CN203460935 U CN 203460935U
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- Prior art keywords
- beam portion
- semi
- longitudinal beam
- crossbeam
- hole
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Abstract
The utility model discloses a semi-trailer longitudinal beam, which comprises a longitudinal beam body. The longitudinal beam body is provided with crossbeam through holes and stress dispersion holes, wherein the crossbeam through holes are used for fixing a semi-trailer crossbeam and the stress dispersion holes are used for dispersing the stress. Since the longitudinal beam body is provided with the stress dispersion holes, the weight of the longitudinal beam body is lowered. The weight of the entire semi-trailer is also lowered indirectly. Due to the arrangement of the stress dispersion holes on the longitudinal beam body, the fatigue strength of the longitudinal beam body is improved and the stress concentration phenomenon of the longitudinal beam body is mitigated. Meanwhile, the longitudinal beam body is also provided with special crossbeam through holes and the number of crossbeams can be set according to actual situations. Therefore, the bearing capacity of the frame of the semi-trailer is enhanced.
Description
Technical field
The utility model relates to a kind of semi-trailer longitudinal beam.
Background technology
How the longeron using on superimposed trailer in prior art is formed by steel plate cutting, although the thickness of steel plate is different, but be the integral structure that whole surface of steel plate is smooth, the longeron of said structure is in use stressed too concentrated, curb mass is large, poor mechanical property, so longeron strength at repeated alternation is little, has had a strong impact on the service life of longeron.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly can alleviates own wt, prevents that stress from concentrating, and improves the semi-trailer longitudinal beam of strength at repeated alternation.
For addressing the above problem, the utility model adopts following technical scheme: a kind of semi-trailer longitudinal beam, comprise longeron body, and on described longeron body, be distributed with for the crossbeam through hole of fixing superimposed trailer crossbeam with for the stress dispersion hole of dispersive stress.
As a kind of improvement, described crossbeam through hole is arranged at the top of described longeron body sidewall.
As a kind of improvement, described crossbeam through hole is set to U-shaped hole.
As a kind of improvement, described longeron body comprises wide beam portion and narrow beam portion, between described wide beam portion and described narrow beam portion, is provided with by the wide transition beam portion to narrow gradual change.
As a kind of improvement, described stress dispersion hole comprises elliptical aperture and circular hole.
As a kind of improvement, described elliptical aperture is located in described wide beam portion.
As a kind of improvement, described circular hole is located at the rear end of described narrow beam portion, described transition beam portion and described wide beam portion.
As a kind of improvement, be positioned at the described Circularhole diameter that described Circularhole diameter in described narrow beam portion and described transition beam portion is less than described wide beam portion rear end.
As a kind of improvement, described wide beam portion, described transition beam portion and described narrow beam portion are integral type structure.
Owing to having adopted such scheme, the utlity model has following beneficial effect and be:
1, longeron body is provided with stress dispersion hole, has reduced the weight of longeron body, has indirectly reduced the weight of car load.
2, the stress dispersion hole arranging on longeron body, has improved the strength at repeated alternation of longeron body, has alleviated the stress concentration phenomenon of longeron body.
3, on longeron body, be provided with special crossbeam through hole, can the radical of crossbeam be set according to actual conditions, contribute to strengthen the bearing capacity of semi-trailer frame.
Accompanying drawing explanation
For ease of explanation, the utility model is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment;
Wherein: 1-longeron body; 11-wide beam portion; 12-transition beam portion; The narrow beam of 13-portion; 2-crossbeam through hole; 3-stress dispersion hole; 31-elliptical aperture; 32-circular hole.
The specific embodiment
As shown in Figure 1, a semi-trailer longitudinal beam, comprises longeron body 1, and the longeron body 1 of the present embodiment comprises wide beam portion 11 and narrow beam portion 13, between described wide beam portion 11 and described narrow beam portion 13, be provided with by the wide transition beam portion 12 to narrow gradual change, to facilitate the installation of longeron body 1 to fix.
The present embodiment is distributed with for the crossbeam through hole 2 of fixing superimposed trailer crossbeam with for the stress dispersion hole 3 of dispersive stress on described longeron body, wherein said crossbeam through hole 2 is arranged at the top of described longeron body 1 sidewall, and in one line, described crossbeam through hole 2 is set to U-shaped hole, contributes to improve constant intensity and the stability of longeron body 1.
Described stress dispersion hole comprises elliptical aperture 31 and circular hole 32, wherein said elliptical aperture 31 is located in described wide beam portion 11, described circular hole 32 is located at the rear end of described narrow beam portion 13, described transition beam portion 12 and described wide beam portion 11, and be positioned at described circular hole 32 diameters that described circular hole 32 diameters in described narrow beam portion 13 and described transition beam portion 12 are less than described wide beam portion 11 rear ends, to adapt to the beam portion of different in width, use, meet the requirement of its dispersive stress.
Described wide beam portion 11, described transition beam portion 12 and described narrow beam portion 11 are integral type structure, contribute to improve the bulk strength of longeron body 1.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, the in the situation that General Principle as defined herein can be within not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be limited to these embodiment shown in this article, but will accord with principle disclosed herein and features of novelty the widest consistent scope.
Claims (6)
1. a semi-trailer longitudinal beam, comprises longeron body, it is characterized in that: on described longeron body, be distributed with for the crossbeam through hole of fixing superimposed trailer crossbeam with for the stress dispersion hole of dispersive stress; Described crossbeam through hole is arranged at the top of described longeron body sidewall; Described crossbeam through hole is set to U-shaped hole; Described longeron body comprises wide beam portion and narrow beam portion, between described wide beam portion and described narrow beam portion, is provided with by the wide transition beam portion to narrow gradual change.
2. a kind of semi-trailer longitudinal beam as claimed in claim 1, is characterized in that: described stress dispersion hole comprises elliptical aperture and circular hole.
3. a kind of semi-trailer longitudinal beam as claimed in claim 2, is characterized in that: described elliptical aperture is located in described wide beam portion.
4. a kind of semi-trailer longitudinal beam as claimed in claim 3, is characterized in that: described circular hole is located at the rear end of described narrow beam portion, described transition beam portion and described wide beam portion.
5. a kind of semi-trailer longitudinal beam as claimed in claim 4, is characterized in that: be positioned at the described Circularhole diameter that described Circularhole diameter in described narrow beam portion and described transition beam portion is less than described wide beam portion rear end.
6. a kind of semi-trailer longitudinal beam as described in claim as arbitrary in claim 4 to 5, is characterized in that: described wide beam portion, described transition beam portion and described narrow beam portion are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291335.4U CN203460935U (en) | 2013-05-18 | 2013-05-18 | Semi-trailer longitudinal beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291335.4U CN203460935U (en) | 2013-05-18 | 2013-05-18 | Semi-trailer longitudinal beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203460935U true CN203460935U (en) | 2014-03-05 |
Family
ID=50173314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320291335.4U Expired - Fee Related CN203460935U (en) | 2013-05-18 | 2013-05-18 | Semi-trailer longitudinal beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203460935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131569A (en) * | 2018-09-18 | 2019-01-04 | 石家庄金丰专用车有限公司 | A kind of semi-trailer longitudinal beam assembly |
-
2013
- 2013-05-18 CN CN201320291335.4U patent/CN203460935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131569A (en) * | 2018-09-18 | 2019-01-04 | 石家庄金丰专用车有限公司 | A kind of semi-trailer longitudinal beam assembly |
| CN109131569B (en) * | 2018-09-18 | 2020-02-21 | 石家庄金丰专用车有限公司 | Semitrailer longitudinal beam assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20200518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |