CN207579954U - A kind of back seat head of low flat bed semi trailer - Google Patents
A kind of back seat head of low flat bed semi trailer Download PDFInfo
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- CN207579954U CN207579954U CN201721801965.6U CN201721801965U CN207579954U CN 207579954 U CN207579954 U CN 207579954U CN 201721801965 U CN201721801965 U CN 201721801965U CN 207579954 U CN207579954 U CN 207579954U
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- plate
- steel plate
- welded connection
- vehicle frame
- stiffener
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Abstract
A kind of back seat head of low flat bed semi trailer, including vehicle frame plate, welded connection, cladding plate and stiffener plate, and it is covered in steel plate I and steel plate II outside vehicle frame plate, it is characterized in that steel plate I is bent into the U-shaped structure of the cross section with upper and lower two pieces of support plates in opening to the right, the upper supporting plate of steel plate I is connected by welded connection with steel plate II, vehicle frame plate is vertically connected on the U-shaped inside configuration of steel plate I by welding, cladding plate is located at the top of welded connection, and the usefulness of the utility model is：The steel plate being covered on vehicle frame plate is set as U-shaped structure, more uniform dispersive stress, make region of the welded connection far from stress concentration, the stiffener plate of cladding plate and lower section above welded connection improves the compression strength of welded connection, so as to increase considerably the active time of back seat head, the working efficiency of low flat bed semi trailer is improved.
Description
Technical field
The utility model is related to low flat bed semi trailer more particularly to a kind of back seat heads 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 use tenon riveting vehicle frame, i.e. front section of vehicle frame are gooseneck, on the towing pin and tractor of gooseneck leading portion
Traction saddle is connected, and gooseneck rear end is connected with semi-trailing car frame, and stage casing is load bed, and rear end is wheel carrier.Toward on low flat bed semi trailer
During loading machine equipment, typically from semitrailer rear end loading machine equipment, that is, use from rear wheel frame and move above mechanical equipment,
Then mechanical equipment is fixed on semitrailer again.As shown in Figure 1, rear wheel frame includes back seat head, shaft and lifting shovel, lifting shovel
Back seat head rear end is welded on by shaft, the top of back seat head includes three blocks of steel plates, and three blocks of steel plates are connected by welding
It connects, the weld seam on top is usually located at the turning point of back seat head rear end, and weld seam is located at the position of stress concentration, when cargo iterates through
During weld seam, since weld seam is located at the region of stress concentration, fatigue fracture is easily generated, cargo may also be damaged, cause in itself
Very big economic loss, semitrailer return that factory's time between overhauls(TBO) is long, and very big influence is caused to the normal transport of semitrailer.
Invention content
In order to solve the above-mentioned technical problem, the utility model provides a kind of back seat head of low flat bed semi trailer, provides one kind
The higher back seat head of intensity.
To achieve the above object, the technical solution that the utility model is taken is：Including vehicle frame plate, welded connection, cladding plate
And stiffener plate and the steel plate I and steel plate II that are covered in outside vehicle frame plate, the steel plate I are bent into upper and lower two pieces of branch
U-shaped structure of the cross section of plate in opening to the right, the upper supporting plate of the steel plate I are connected by welded connection with steel plate II
It connects, the vehicle frame plate is vertically connected on the U-shaped inside configuration of steel plate I by welding, and the cladding plate is located at welding
The top of connecting portion, cladding plate are connected by welding with welded connection, and the width of cladding plate is more than welded connection
Width, the stiffener plate are arranged on the U-shaped inside configuration of steel plate I and with vehicle frame plate with welding manner vertical connection, institute
The stiffener plate stated is arranged on the downside of welded connection, the upper end of stiffener plate by welding with welded connection phase
Connection, the lower carrier plate of the lower end of stiffener plate by welding with steel plate I are connected.
Further, welded connection and the distance of I bending place of steel plate are set as 20~50cm, the area far from stress concentration
Domain reduces the stress that welded connection is born.
Further, stiffener plate is arranged to rectangle structure, and the both sides in I direction of vehicle frame plate and steel plate are provided with semicircle
The hole of shape, convenient for the installation of rope.
Compared with prior art, the utility model has the advantages that：The steel plate being covered on vehicle frame plate is set
For U-shaped structure, more uniform dispersive stress makes region of the welded connection far from stress concentration, welded connection top
Cladding plate and the stiffener plate of lower section improve the compression strength of welded connection, so as to increase considerably the military service of back seat head
Time improves the working efficiency 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 structure diagram of the prior art；
Attached drawing 2 is the structure diagram of the utility model；
Attached drawing 3 is the structure diagram of stiffener plate；
In attached drawing：1st, steel plate I, 2, steel plate II, 3, welded connection, 4, cladding plate, 5, stiffener plate, 6, vehicle frame 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, attached drawing
3 and specific embodiment the utility model is further described.
As shown in Figure 2, the back seat head of a kind of low flat bed semi trailer, including vehicle frame plate 6, welded connection 3,4 and of cladding plate
Stiffener plate 5 and the steel plate I 1 being covered in outside vehicle frame plate 6 and steel plate II 2, the steel plate I 1 are bent into upper and lower two pieces
U-shaped structure of the cross section of support plate in opening to the right, the upper supporting plate of the steel plate I 1 pass through welded connection 3 and steel plate II 2
It is connected, the vehicle frame plate 6 is vertically connected on the U-shaped inside configuration of steel plate I 1, the cladding plate 4 by welding
In the top of welded connection 3, cladding plate 4 is connected by welding with welded connection 3, and the width of cladding plate 4 is more than weldering
The width of connection section 3, the stiffener plate 5 are arranged on the U-shaped inside configuration of steel plate I 1 and with vehicle frame plate 6 with the side of welding
Formula vertical connection, the stiffener plate 5 are arranged on the downside of welded connection 3, the side that the upper end of stiffener plate 5 passes through welding
Formula is connected with welded connection 3, and the lower carrier plate of the lower end of stiffener plate 5 by welding with steel plate I 1 is connected.
Further, welded connection 3 and the distance of I 1 bending place of steel plate are set as 20~50cm, far from stress concentration
Region reduces the stress that welded connection 3 is born.
Further, as shown in Figure 3, stiffener plate 5 is arranged to rectangle structure, along I 1 direction of vehicle frame plate 6 and steel plate
Both sides be provided with semicircular hole, convenient for the installation of rope.
Compared with prior art, the utility model has the advantages that：The steel plate being covered on vehicle frame plate is set
For U-shaped structure, more uniform dispersive stress makes region of the welded connection far from stress concentration, welded connection top
Cladding plate and the stiffener plate of lower section improve the compression strength of welded connection, so as to increase considerably the military service of back seat head
Time improves the working efficiency 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 back seat head of low flat bed semi trailer, including vehicle frame plate（6）, welded connection（3）, cladding plate（4）And stiffener plate
（5）And it is covered in vehicle frame plate（6）External steel plate I（1）With steel plate II（2）, it is characterized in that the steel plate I（1）It is bent into tool
There are U-shaped structure of the cross section of upper and lower two pieces of support plates in opening to the right, the steel plate I（1）Upper supporting plate by being welded to connect
Portion（3）With steel plate II（2）It is connected, the vehicle frame plate（6）It is vertically connected on steel plate I by welding（1）U-shaped knot
Inside structure, the cladding plate（4）Positioned at welded connection（3）Top, cladding plate（4）By welding with welded connection
（3）It is connected, cladding plate（4）Width be more than welded connection（3）Width, the stiffener plate（5）It is arranged on steel plate I
（1）U-shaped inside configuration and with vehicle frame plate（6）With welding manner vertical connection, the stiffener plate（5）It is arranged on welding
Connecting portion（3）Downside, stiffener plate（5）Upper end by welding with welded connection（3）It is connected, stiffener plate
（5）Lower end by welding with steel plate I（1）Lower carrier plate be connected.
2. the back seat head of low flat bed semi trailer according to claim 1, it is characterized in that welded connection（3）With steel plate I（1）
The distance of bending place is set as 20 ~ 50cm.
3. the back seat head of low flat bed semi trailer according to claim 1, it is characterized in that stiffener plate（5）Rectangularity is set
Structure, along vehicle frame plate（6）With steel plate I（1）The both sides in direction are provided with semicircular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801965.6U CN207579954U (en) | 2017-12-21 | 2017-12-21 | A kind of back seat head of low flat bed semi trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801965.6U CN207579954U (en) | 2017-12-21 | 2017-12-21 | A kind of back seat head of low flat bed semi trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207579954U true CN207579954U (en) | 2018-07-06 |
Family
ID=62739732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721801965.6U Active CN207579954U (en) | 2017-12-21 | 2017-12-21 | A kind of back seat head of low flat bed semi trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207579954U (en) |
-
2017
- 2017-12-21 CN CN201721801965.6U patent/CN207579954U/en active Active
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