CN207595060U - A kind of longeron of low flat bed semi trailer - Google Patents
A kind of longeron of low flat bed semi trailer Download PDFInfo
- Publication number
- CN207595060U CN207595060U CN201721801962.2U CN201721801962U CN207595060U CN 207595060 U CN207595060 U CN 207595060U CN 201721801962 U CN201721801962 U CN 201721801962U CN 207595060 U CN207595060 U CN 207595060U
- Authority
- CN
- China
- Prior art keywords
- diameter portion
- extension
- varying diameter
- longeron
- receiving part
- 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.)
- Active
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
A kind of longeron of low flat bed semi trailer, including load receiving part, varying diameter portion, extension and strengthening doubling plate, it is characterized in that the load receiving part, varying diameter portion, extension is structure as a whole, the strengthening doubling plate is connected by welding with varying diameter portion and extension, the axially vertical section of load receiving part is rectangle structure, the axially vertical section structure in a rectangular trapezoid of varying diameter portion, the upper end edge of load receiving part and varying diameter portion is in same plane, the plane forms the angle of predetermined angle with horizontal plane, the axially vertical section of extension is rectangle structure, the upper end edge of extension and the angle of horizontal plane are zero degree；The usefulness of the utility model is：When transporting cargo, the upper end edge in the axially vertical section of longeron keeps horizontal, avoids the appearance for staying and eating tire phenomenon of longeron；In zero load, the setting of strengthening doubling plate avoids tire front axle and leaps up forward, also improves the intensity of longeron, and then improves the stability of low flat bed semi trailer.
Description
Technical field
The utility model is related to low flat bed semi trailer more particularly to a kind of longerons of low flat bed semi trailer.
Background technology
Low flat bed semi trailer is commonly used to transport heavy-duty car（Such as tractor, motor bus, special purpose vehicle）, railcar
, mine equipment, forestry machinery, engineering machinery（Such as excavator, bull-dozer, loading machine, paving machine, crane）And other are heavy
Loading object, center of gravity is lower, and stability and safety are better, transports overheight cargo and stronger by the ability of crown obstacle.
Low flat bed semi trailer generally includes the gooseneck of forepart and the vehicle frame at rear portion, the traction saddle on the towing pin and tractor of gooseneck leading portion
Seat is connected, and gooseneck rear end is connected with vehicle frame.Vehicle frame is generally by two longerons and several crossbeam systems being located between two longerons
Make, longeron generally all using three block length bar steel plates be welded cross section be " H " font crossbeam.It is as shown in Figure 1, vertical
Beam includes three parts, and forepart is the part for load-bearing, and middle and back reducing cooperation tire group, rear portion extends to end, longeron
Upper face axially be in flat.When the length of longeron is more than 12.5m, after low flat bed semi trailer loads cargo, due to vertical
Beam is longer, and under the effect of the pressure, longeron deforms, and longeron is to intermediate recess, and the varying diameter portion of longeron is also oblique within, longeron
Varying diameter portion occur eating tire phenomenon, transportational process also more excessive fuel consumption；Low flat bed semi trailer in no-load running, longeron varying diameter portion
Rear end is higher than the front end of extension, and tire front axle is easy to leap up forward, reduces the stationarity of vehicle.
Invention content
In order to solve the above-mentioned technical problem, the utility model provides a kind of longeron of low flat bed semi trailer, provides a kind of knot
Structure optimizes and more stable longeron.
To achieve the above object, the technical solution that the utility model is taken is：A kind of longeron of low flat bed semi trailer, including
Load receiving part, varying diameter portion, extension and strengthening doubling plate, it is characterized in that the load receiving part, varying diameter portion, extension are structure as a whole,
The varying diameter portion is arranged on the rear end of load receiving part, and the extension is arranged on the rear end of varying diameter portion, the strengthening doubling plate
The lower end of varying diameter portion and extension is arranged on, strengthening doubling plate is connected by welding with varying diameter portion and extension, load-bearing
The axially vertical section in portion is rectangle structure, the axially vertical section structure in a rectangular trapezoid of varying diameter portion, load receiving part and reducing
The upper end edge in portion is in same plane, and the plane and horizontal plane form the angle of predetermined angle, extension it is axially vertical
Section is rectangle structure, and the upper end edge of extension and the angle of horizontal plane are zero degree.
Further, the angle of the plane residing for the upper end edge of load receiving part and varying diameter portion and horizontal plane be set as 0.3~
0.6°。
Further, the axially vertical section of strengthening doubling plate is set as sector structure, the radius setting of the sector structure
For 10~50mm.
Compared with prior art, the utility model has the advantages that：When transporting cargo, longeron is axially vertical
The upper end edge in section keeps horizontal, avoids the appearance for staying and eating tire phenomenon of longeron；The setting of strengthening doubling plate in zero load
It avoids tire front axle to leap up forward, also improves the intensity of longeron, and then improve the stability of low flat bed semi trailer.
Description of the drawings
The utility model is described further below in conjunction with attached drawing.
Attached drawing 1 is the axially vertical cross section structure schematic diagram of the prior art；
Attached drawing 2 is the axially vertical cross section structure schematic diagram of the utility model；
In attached drawing：1st, load receiving part, 2, varying diameter portion, 3, extension, 4, strengthening doubling plate.
Specific embodiment
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with the accompanying drawings 2 and tool
Body embodiment is further described the utility model.
A kind of longeron of low flat bed semi trailer, including load receiving part 1, varying diameter portion 2, extension 3 and strengthening doubling plate 4, feature
It is that the load receiving part 1, varying diameter portion 2, extension 3 are structure as a whole, the varying diameter portion 2 is arranged on the rear end of load receiving part 1, institute
The extension 3 stated is arranged on the rear end of varying diameter portion 2, and the strengthening doubling plate 4 is arranged on the lower end of varying diameter portion 2 and extension 3, adds
Strong cladding plate 4 is connected by welding with varying diameter portion 2 and extension 3, and the axially vertical section of load receiving part 1 is rectangle knot
Structure, the axially vertical section structure in a rectangular trapezoid of varying diameter portion 2, load receiving part 1 and the upper end edge of varying diameter portion 2 are in same plane
Interior, the plane forms the angle of predetermined angle with horizontal plane, and the axially vertical section of extension 3 is rectangle structure, extends
The upper end edge in portion 3 and the angle of horizontal plane are zero degree.
Further, the angle of the plane residing for the upper end edge of load receiving part 1 and varying diameter portion 2 and horizontal plane be set as 0.3~
0.6°。
Further, the axially vertical section of strengthening doubling plate 4 is set as sector structure, the radius setting of the sector structure
For 10~50mm.
The operation principle of the utility model is as follows：When loading cargo, weight is usually located above load receiving part 1, is being pressed
Under the action of power, the load receiving part 1 of longeron deforms, and reduces certain altitude downwards, since load receiving part 1 has raised certain height in advance
Degree, after decline, load receiving part 1 and varying diameter portion, the upper end edge in axially vertical section of extension 3 are located in approximately the same plane, this
The angle of plane and horizontal plane is zero degree, avoids the appearance for staying and eating tire phenomenon of longeron；In zero load, strengthening doubling plate 4
The rear end of varying diameter portion 2 is made to keep sustained height with the front end of extension 3, tire front axle is avoided and leaps up forward, also improve simultaneously
The intensity of longeron, and then improve the stability of vehicle.
Compared with prior art, the utility model has the advantages that：When transporting cargo, longeron is axially vertical
The upper end edge in section keeps horizontal, avoids the appearance for staying and eating tire phenomenon of longeron；The setting of strengthening doubling plate in zero load
It avoids tire front axle to leap up forward, also improves the intensity of longeron, and then improve the stability of low flat bed semi trailer.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technique effect, is the protection model for falling into the utility model
It encloses.
Claims (3)
1. a kind of longeron of low flat bed semi trailer, including load receiving part（1）, varying diameter portion（2）, extension（3）And strengthening doubling plate（4）,
It is characterized in that the load receiving part（1）, varying diameter portion（2）, extension（3）It is structure as a whole, the varying diameter portion（2）It is arranged on and holds
Weight portion（1）Rear end, the extension（3）It is arranged on varying diameter portion（2）Rear end, the strengthening doubling plate（4）It is arranged on change
Diameter portion（2）And extension（3）Lower end, strengthening doubling plate（4）By welding with varying diameter portion（2）And extension（3）It is connected
It connects, load receiving part（1）Axially vertical section be rectangle structure, varying diameter portion（2）Axially vertical section structure in a rectangular trapezoid,
Load receiving part（1）With varying diameter portion（2）Upper end edge be in same plane, the plane and horizontal plane form the folder of predetermined angle
Angle, extension（3）Axially vertical section be rectangle structure, extension（3）Upper end edge and the angle of horizontal plane be zero degree.
2. the longeron of low flat bed semi trailer according to claim 1, it is characterized in that load receiving part（1）And varying diameter portion（2）It is upper
The angle of plane and horizontal plane residing for end edge is set as 0.3~0.6 °.
3. the longeron of low flat bed semi trailer according to claim 1, it is characterized in that strengthening doubling plate（4）Axially vertical section
Sector structure is set as, the radius of the sector structure is set as 10~50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801962.2U CN207595060U (en) | 2017-12-21 | 2017-12-21 | A kind of longeron of low flat bed semi trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801962.2U CN207595060U (en) | 2017-12-21 | 2017-12-21 | A kind of longeron of low flat bed semi trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207595060U true CN207595060U (en) | 2018-07-10 |
Family
ID=62767588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721801962.2U Active CN207595060U (en) | 2017-12-21 | 2017-12-21 | A kind of longeron of low flat bed semi trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207595060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514055A (en) * | 2018-12-21 | 2019-03-26 | 辽宁忠旺特种车辆制造有限公司 | A kind of low plate stringer assembly welding procedure |
-
2017
- 2017-12-21 CN CN201721801962.2U patent/CN207595060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514055A (en) * | 2018-12-21 | 2019-03-26 | 辽宁忠旺特种车辆制造有限公司 | A kind of low plate stringer assembly welding procedure |
| CN109514055B (en) * | 2018-12-21 | 2020-12-08 | 辽宁忠旺特种车辆制造有限公司 | Welding process for low-flat-plate longitudinal beam assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212473243U (en) | Primary and secondary transportation trailer | |
| CN104002864B (en) | A kind of special equipment chassis of semi-trailer | |
| CN207595060U (en) | A kind of longeron of low flat bed semi trailer | |
| CN209051496U (en) | A kind of semitrailer crossbeam | |
| CN205499059U (en) | Frame | |
| CN205256439U (en) | Low flat -bed's retractable frame | |
| CN204110153U (en) | Low flat bed delivery vehicle carriage | |
| CN203888881U (en) | Half-hung large-tonnage special vehicle | |
| CN103771274A (en) | Lifting rail car for railway construction | |
| CN204161499U (en) | Superimposed trailer gooseneck structure and there is the superimposed trailer of this gooseneck structure | |
| CN204605940U (en) | A kind of arc bogie vehicle frame | |
| CN204605941U (en) | A kind of bogie vehicle frame | |
| CN203728454U (en) | Hoisting rail car for railway construction | |
| CN109018007B (en) | Low flatbed for heavy engineering | |
| CN202716952U (en) | Heavy-duty semitrailer traction device | |
| CN201092345Y (en) | Light semi-trailer | |
| CN205113445U (en) | Jiayouche frame structure | |
| CN201745661U (en) | Light bulky cargo transportation semitrailer | |
| CN205686476U (en) | Gantry beam root stiffener on a kind of quarry tipper | |
| CN101758861A (en) | Semi-trailer frame | |
| CN213472682U (en) | Be applied to cold-stored semitrailer's traction disc structure | |
| CN207579954U (en) | A kind of back seat head of low flat bed semi trailer | |
| CN208149148U (en) | A kind of transport marble plate dumper | |
| CN212243600U (en) | Rear overturning frame reinforcing structure | |
| CN204915415U (en) | Sugarcane field transfer car(buggy) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |