CN206644874U - Semitrailer crossbeam and semitrailer - Google Patents
Semitrailer crossbeam and semitrailer Download PDFInfo
- Publication number
- CN206644874U CN206644874U CN201720337548.4U CN201720337548U CN206644874U CN 206644874 U CN206644874 U CN 206644874U CN 201720337548 U CN201720337548 U CN 201720337548U CN 206644874 U CN206644874 U CN 206644874U
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- wing plate
- lower wing
- semitrailer
- crossbeam
- upper flange
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Abstract
It the utility model is related to semitrailer technical field, more particularly to a kind of semitrailer crossbeam and semitrailer.Semitrailer crossbeam includes rear lower wing plate and suspender；Lower wing plate includes lower wing plate flat part and two lower wing plate side plates afterwards, and two lower wing plate side plates are located at the relative both sides of lower wing plate flat part, forms the structure that cross section is U-shape；The opening upwards of the rear lower wing plate of U-shape are set or down-set, and lower wing plate flat part is connected with suspender.Semitrailer includes above-mentioned semitrailer crossbeam and tractor, and semitrailer crossbeam is connected with tractor.Semitrailer crossbeam and semitrailer provided by the utility model so that rear lower wing plate does not allow easy fracture in the junction with suspender, and the life-span is extended.
Description
Technical field
It the utility model is related to semitrailer technical field, more particularly to a kind of semitrailer crossbeam and semitrailer.
Background technology
With the continuous development of carrier, because semitrailer is compared with " monomer-type " automobile, highway transportation can be more improved
Comprehensive profit；Therefore semitrailer has turned into the prevailing traffic of zero bulk goods such as coal, ore, building and water fruits and vegetables
Instrument.
The supporting power of semitrailer is an important performance, and the supporting power of semitrailer holding mainly due to semitrailer crossbeam
Force intensity determines.Referring to Fig. 1, Fig. 2 and Fig. 3, the primary structure of semitrailer crossbeam is including being respectively distributed to a left side in the prior art
The i-beam structure part that two of right both sides are made up of upper flange D, lower wing plate and web E；The i-beam structure part of the left and right sides
It is symmetrically set.In general, upper flange D, lower wing plate and web E are extended from front to back；Wherein, lower wing plate
For platy structure, and lower wing plate includes preceding lower wing plate C, gooseneck lower wing plate B and rear lower wing plate A, gooseneck bottom wing successively from front to back
Plate B both ends are connected with preceding lower wing plate C and rear lower wing plate A respectively.The rear lower wing plate A of two tabulars of the left and right sides is connected respectively
There is one group of suspender F for being used for hanging leaf spring；Two groups of suspender F are including multiple, and multiple suspenders in every group of suspender F
F is set gradually along corresponding rear lower wing plate A length direction.Because rear lower wing plate A in itself and suspender F junction needs to hold
Suspender F gravity is carried, so, rear lower wing plate A is easily broken in the junction, and have a strong impact on semitrailer uses the longevity
Life.
To sum up, how to overcome the drawbacks described above of traditional semitrailer is those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of semitrailer crossbeam and semitrailer, to alleviate semi-mounted of the prior art
The problem of lower wing plate is easily broken off in the junction of itself and suspender after on car.
Semitrailer crossbeam provided by the utility model includes rear lower wing plate and suspender.
Wherein, the rear lower wing plate includes lower wing plate flat part and two lower wing plate side plates, two lower wing plate sides
Plate portion is located at the relative both sides of the lower wing plate flat part, forms the structure that cross section is U-shape；U-shape it is described after
The opening upwards of lower wing plate are set or down-set, and the lower wing plate flat part is connected with the suspender.
Further, seamlessly transitted between the lower wing plate flat part and two lower wing plate side plates using cambered surface
Connection.
Further, U-shape it is described after lower wing plate Open Side Down sets.
Further, the semitrailer crossbeam also includes gooseneck lower wing plate；The gooseneck lower wing plate and the rear lower wing plate
The lower surface overlap joint of middle lower wing plate flat part is fixed.
Further, the semitrailer crossbeam also includes traction cross bearer, upper flange and tail trimmer；
The upper flange includes upper flange flat part and two upper flange side plates, and two upper flange side plates are located at
The both sides of the upper flange flat part, form the structure that cross section is U-shape；The opening of the upper flange of U-shape to
Lower setting；
The upper flange flat part is connected smoothly with two upper flange side plates using cambered surface；The upper limb
Welded respectively with the traction cross bearer and the tail trimmer transition junction of plate flat part and two upper flange side plates
Connect.
Further, the semitrailer crossbeam also includes bearing diagonal, and the cross section of the bearing diagonal is shape；It is described
One end of bearing diagonal is connected with the tail trimmer of wherein side, pair of the other end of the bearing diagonal and the traction cross bearer
Side is answered to be fixedly connected.
Accordingly, the utility model additionally provides a kind of semitrailer, including above-mentioned semitrailer crossbeam and tractor, and described half
Trailer crossbeam is connected with the tractor.
Further, the semitrailer also includes afterbody rear protecting assembly；The afterbody rear protecting assembly and the semi-mounted
Crossbeam is detachably connected.
Further, the afterbody rear protecting assembly includes mark beam, Bumper and wind deflector；The mark beam is located at
The top of the Bumper, and the mark beam and the Bumper are groove of the opening towards the headstock direction of the semitrailer
Steel construction.
The wind deflector is slab construction；The wind deflector is arranged on the front of the mark beam and the Bumper,
And the upper end of the wind deflector is higher than the mark beam, the lower end of the wind deflector is less than the Bumper.
Further, the wind deflector is from top to bottom obliquely installed.
Compared with prior art, the beneficial effects of the utility model are：
Semitrailer crossbeam provided by the utility model, analyze its structure and understand：Above-mentioned semitrailer crossbeam is mainly by rear bottom wing
Plate and suspender composition.Wherein, rear lower wing plate also includes lower wing plate flat part and two lower wing plate side plates, and two lower wing plates
Side plate is distributed in the relative both sides of lower wing plate flat part, forms the structure that cross section is U-shape；The U-shape it is rear under
The opening upwards setting or down-set of wing plate, and suspender is connected on lower wing plate flat part.
Relative to rear lower wing plate plate-like in the prior art, rear lower wing plate provided by the utility model is that cross section is U
The structure of shape shape；Obviously, the intensity of the rear lower wing plate of U-shape is higher than the intensity of the rear lower wing plate of tabular.In U-shape
Rear lower wing plate in, the ability that lower wing plate flat part bears direct stress also bears direct stress apparently higher than two lower wing plate side plates
Ability；Therefore, by the opening upwards of the rear lower wing plate of U-shape or down-set (that is plate of lower wing plate flat part
Face is horizontal positioned), and suspender is connected with lower wing plate flat part so that rear lower wing plate is born in the junction with suspender
The intensity of the tension downward from suspender is improved；And then rear lower wing plate is not easy in the junction with suspender
It is broken.
The utility model additionally provides a kind of semitrailer, analyzes its primary structure and understands：Above-mentioned semitrailer is mainly by drawing
Car and above-mentioned semitrailer crossbeam composition；And semitrailer crossbeam is connected with tractor.
Obviously, semitrailer provided by the utility model have above-mentioned semitrailer crossbeam institute it is advantageous, it is just no longer more herein
Add and repeat.The rear lower wing plate of semitrailer crossbeam does not allow easy fracture in the junction with suspender in semitrailer, and the life-span is prolonged
It is long.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the main structure diagram of semitrailer crossbeam of the prior art；
Fig. 2 is the A '-A ' of Fig. 1 semitrailer crossbeams of the prior art to sectional view；
Fig. 3 is the mplifying structure schematic diagram of the B ' parts of Fig. 2 semitrailer crossbeams of the prior art；
Fig. 4 is the main structure diagram for the semitrailer crossbeam that the utility model embodiment one provides；
Fig. 5 is the A-A of the semitrailer crossbeam that the utility model embodiment one provides in Fig. 4 to sectional view；
Fig. 6 is the mplifying structure schematic diagram of the part B for the semitrailer crossbeam that the utility model embodiment one provides in Fig. 4；
Fig. 7 is the main structure diagram for the semitrailer crossbeam that the utility model embodiment two provides；
Fig. 8 is the C-C of the semitrailer crossbeam that the utility model embodiment two provides in Fig. 7 to sectional view；
Fig. 9 is the mplifying structure schematic diagram of D parts in the semitrailer crossbeam that the utility model embodiment two provides in Fig. 8；
Figure 10 is the A-A of the semitrailer crossbeam that the utility model embodiment two provides in Fig. 7 to sectional view；
Figure 11 is the dimensional structure diagram of the bearing diagonal in the semitrailer crossbeam that the utility model embodiment two provides；
Figure 12 is the partial structural diagram for the semitrailer that the utility model embodiment four provides；
Figure 13 is the stereochemical structure signal of the afterbody rear protecting assembly in the semitrailer that the utility model embodiment four provides
Figure；
Figure 14 is the forward sight structural representation of the afterbody rear protecting assembly in the semitrailer that the utility model embodiment four provides
Figure.
Icon in prior art accompanying drawing：Lower wing plate after A-；B- gooseneck lower wing plates；Lower wing plate before C-；D- upper flanges；
E- webs；F- suspenders；
Icon in the utility model accompanying drawing：Lower wing plate after 10-；11- lower wing plate flat parts；12- lower wing plate side plates
Portion；20- gooseneck lower wing plates；Lower wing plate before 30-；40- suspenders；50- upper flanges；51- upper flange flat parts；On 52-
Wing plate side plate；53- weld seams；60- draws cross bearer；70- tail trimmers；80- bearing diagonals；90- afterbody rear protecting assemblies；
91- indicates beam；92- Bumpers；93- wind deflectors；94- connectors.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", "left", "right", " water
It is flat " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of and describe this reality
With new and simplify description, rather than instruction or imply that signified device or element there must be specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " connection "
It should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, it can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
The utility model is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
Embodiment one
Referring to Fig. 4, Fig. 5 and Fig. 6, the present embodiment one provides a kind of semitrailer girder structure, including the He of rear lower wing plate 10
Suspender 40；
Wherein, the rear lower wing plate 10 includes lower wing plate flat part 11 and two lower wing plate side plates 12, under two described
Wing plate side plate 12 is located at the relative both sides of the lower wing plate flat part 11, forms the structure that cross section is U-shape；
U-shape it is described after the opening upwards of lower wing plate 10 set or down-set, and the lower wing plate flat part
11 are connected with the suspender 40.
The structure for analyzing above-mentioned semitrailer crossbeam is understood：It is mainly made up of rear lower wing plate 10 and suspender 40.Wherein, after
Lower wing plate 10 also includes lower wing plate flat part 11 and two lower wing plate side plates 12, and two lower wing plate side plates 12 are distributed in down
The relative both sides of wing plate flat part 11, form the structure that cross section is U-shape；The opening of the rear lower wing plate 10 of the U-shape
Set up or down-set, and suspender 40 is connected on lower wing plate flat part 11.
Relative to rear lower wing plate 10 plate-like in the prior art, rear lower wing plate 10 provided by the utility model is cross section
For the structure of U-shape；Obviously, the intensity of the rear lower wing plate 10 of U-shape is higher than the intensity of the rear lower wing plate 10 of tabular.
In the rear lower wing plate 10 of U-shape, lower wing plate flat part 11 bears the ability of direct stress also apparently higher than two lower wing plate sides
Plate portion 12 bears the ability of direct stress；Therefore, by the opening upwards of the rear lower wing plate 10 of U-shape or it is down-set (namely
Say that the plate face of lower wing plate flat part 11 is horizontal positioned), and suspender 40 is connected with lower wing plate flat part 11 so that rear lower wing plate
10 in the junction with suspender 40, bears the intensity from the downward tension of suspender 40 and is improved；After and then
Lower wing plate 10 is not easy to be broken in the junction with suspender 40.
Embodiment two
Referring to Fig. 7, Fig. 8 and Fig. 9, the present embodiment two provides a kind of semitrailer crossbeam, while also uses above-mentioned technology
Structural relation；Such as：The present embodiment two provides a kind of semitrailer crossbeam, including rear lower wing plate 10 and suspender 40；Wherein, institute
Stating rear lower wing plate 10 includes lower wing plate flat part 11 and two lower wing plate side plates 12, two lower wing plate side plates 12
In the relative both sides of the lower wing plate flat part 11, the structure that cross section is U-shape is formed；The rear bottom wing of U-shape
The opening upwards of plate 10 are set or down-set, and the lower wing plate flat part 11 is connected with the suspender 40.
The semitrailer crossbeam that the present embodiment two provides, it is identical with the primary structure of the semitrailer crossbeam in embodiment one；
But the semitrailer crossbeam that the present embodiment two provides has further related to specific structure design.The present embodiment two and above-described embodiment one
Unlike：Semitrailer crossbeam in the present embodiment two, it has more specific design features to concrete structure；Such as：Afterwards
The concrete structure of lower wing plate 10；In addition, it also increases some preferable technical characteristics.
The concrete structure and technique effect of technical scheme about the present embodiment two are as follows：
Lower wing plate flat part 11 is fixed with the preferred weld of suspender 40, and connection is more firm.
In the concrete structure of rear lower wing plate 10, it will be used between lower wing plate flat part 11 and two lower wing plate side plates 12
Cambered surface is connected smoothly；Obviously, cambered surface, which seamlessly transits, enables to the self-strength of rear lower wing plate 10 bigger, further alleviates
The situation that rear lower wing plate 10 is broken in the junction of lower wing plate flat part 11 and suspender 40.
Preferably, the rear lower wing plate 10 of U-shape is defined into Open Side Down to set.
It should be noted that Open Side Down for rear lower wing plate 10 so that suspender 40 is in U-shaped with lower wing plate flat part 11
The surface connection of inner side, is more beneficial for improving lower wing plate flat part 11 and the intensity to meet with stresses of the junction of suspender 40, enters
One step alleviates the situation that the junction is easily broken.
In addition, lower wing plate is an overall platy structure in the prior art, and there are multiple bending parts；Wherein, in gooseneck
The junction of lower wing plate and rear lower wing plate is exactly one of bending part, larger in the bending part stress, the bottom wing of platy structure
Plate intensity is poor, is very easy to be broken in the bending part.
So the present embodiment two is directed to the above situation, and the gooseneck lower wing plate 20 of lower wing plate and rear lower wing plate 10 are used and divided
Segmentation structure, wherein, gooseneck lower wing plate 20 still uses original platy structure, and gooseneck lower wing plate 20 is deep into rear lower wing plate
10 U-shaped inside grooves, and the lower surface of the lower wing plate flat part 11 in gooseneck lower wing plate 20 and rear lower wing plate 10 is overlapped admittedly
Fixed (welding can be used)；The mode that this overlap joint of gooseneck lower wing plate 20 and rear lower wing plate 10 is fixed, can strengthen and connect at the two
The intensity to meet with stresses at the place of connecing, and then, alleviate what gooseneck lower wing plate 20 was easily broken with the rear junction of lower wing plate 10
Situation.
In fact, the front end of gooseneck lower wing plate 20 is also associated with preceding lower wing plate 30.
In the prior art, the side and the tail trimmer of respective side that upper flange will be corresponding with traction cross bearer are carried out
Welding, to reach fixed purpose.However, because upper flange is thin plate-shaped structure, it is welded with traction cross bearer and tail trimmer
Weld seam be a thinner straight line, and the upper and lower surface of weld seam does not have structure support substantially；Weld is caused easily to break
Split.
So the present embodiment two is directed to the above situation, referring to Fig. 8 and Fig. 9, it is U that upper flange 50 is also configured as into cross section
The structure of shape shape, wherein, upper flange flat part 51 is the bottom surface of U shapes, and two upper flange side plates 52 are the two of U-shaped
Individual side.In order that the other structures (such as platform floor) that upper flange 50 adapts to semitrailer are obtained, by the upper flange 50 of U-shape
It is arranged to the structure that Open Side Down.Equally, with reference to the structure of above-mentioned lower wing plate, by upper flange flat part 51 and two upper flange sides
Plate portion 52 is connected smoothly using cambered surface, to strengthen the intensity of upper flange 50.Meanwhile by upper flange flat part 51 and two
Welded respectively with the respective side of traction cross bearer 60 and the tail trimmer 70 of respective side the cambered surface junction of wing plate side plate 52；Enter
And the cambered surface junction and the respective side for drawing cross bearer 60 weld seam 53 and the cambered surface junction and respective side it is short
The weld seam 53 of crossbeam 70, it is respectively formed welding region of the cross section similar to triangle；The welding region area of this triangle is larger,
And have upper flange side plate 52 in its lower section as support, so, alleviate the weld and situation about being broken easily occur.
Especially, referring to Figure 10 and Figure 11, bearing diagonal 80 is provided between tail trimmer 70 and traction cross bearer 60, this is oblique
The cross section of support 80 is shape.Compared to the bearing diagonal that cross section in the prior art is C-shaped, the Z that the present embodiment two provides
The bearing diagonal 80 of shape shape, without cut edge, reduces production process；Meanwhile equidirectional active force is also reduced, intensity increases
Greatly.
Preferably, rear lower wing plate 10 and upper flange 50 are manufactured using channel-section steel.
Embodiment three
Accordingly, the present embodiment three provides a kind of semitrailer, and the semitrailer that it includes being related in above-described embodiment two is big
Beam (concrete structure of the semitrailer crossbeam no longer repeats one by one), while it also includes tractor；Semitrailer crossbeam and tractor
Connection.
Obviously, semitrailer provided by the utility model have the semitrailer crossbeam in above-described embodiment two institute it is advantageous,
Just no longer add to repeat herein.The rear lower wing plate 10 of semitrailer crossbeam is not allowed easily broken in the junction with suspender 40 in semitrailer
Split, the life-span is extended and (see also Figure 10 in above-described embodiment two).
Example IV
The present embodiment four provides a kind of semitrailer, while also uses above-mentioned technical pattern relation；Such as：A kind of semi-mounted
Car, including above-mentioned semitrailer crossbeam, in addition to tractor；Semitrailer crossbeam is connected with tractor.
The concrete structure and technique effect of technical scheme about the present embodiment four are as follows：
Preferably, referring to Figure 12, Figure 13 and Figure 14, semitrailer includes afterbody rear protecting assembly 90, and afterbody rear protecting
Assembly 90 uses dismountable connected mode with semitrailer crossbeam；When afterbody rear protecting assembly 90 damages, can change at any time, it is non-
It is often convenient.Specific dismounting mode can be by the way of threaded connection, i.e., the company in afterbody rear protecting assembly 90 and semitrailer crossbeam
Multiple through holes are opened up on fitting 94, and through hole is also opened up in the correspondence position of semitrailer crossbeam, pass through screw (not shown)
Corresponding through hole is coordinated, and locked using nut (not shown).
Above-mentioned afterbody rear protecting assembly 90 also includes mark beam 91, Bumper 92 and wind deflector 93；Wherein, prior art
In mark beam 91 and Bumper 92 all made using channel-section steel, and the opening of channel-section steel works as semi-mounted towards the headstock direction of semitrailer
When garage enters, wind can relative semitrailer blow into from front to back in the groove of channel-section steel, then wind direction under the opposition of bottom land again
It is changed into from the front to the back, and the wind with continuing to blow to groove from front to back produces strong convection.Indicate the recessed of beam 91 and Bumper 92
Rooved face can form 0.32 square metre of windage, if semitrailer travels according to 90 kilometers/hour of speed, and it is public by every 100
In expend 25 liters of fuel oils and calculate, that will expend 1.06 liters of fuel oils more because groove effect semitrailer often travels 100 kilometers.This implementation
Example two is provided with wind deflector 93 in the front of mark beam 91 and Bumper 92, and wind deflector 93 uses slab construction, that can make
Surface flow of the wind along wind deflector 93 is obtained, plays the purpose of wind-guiding；In general, mark beam 91 is positioned at the top of Bumper 92
, therefore the upper end of wind deflector 93 should be higher than that mark beam 91, lower end should be less than Bumper 92, to enable wind deflector 93 will be recessed
The front region of groove covers completely, prevents wind from entering groove.In the presence of wind deflector 93, when semitrailer travels, it can eliminate
0.32 square metre of windage caused by groove；And then travelled in semitrailer according to 90 kilometers/hour of speed, and it is public by every 100
In expend 25 liters of fuel oils and calculate, 1.06 liters of fuel oils will be saved than semitrailer of the prior art by often travelling 100 kilometers.
In concrete structure, wind deflector 93 is from top to bottom obliquely installed, in wind to wind deflector 93 after, can be along leading
93 sweptback side of aerofoil is blown out, and wind effect is more preferable, further reduces windage.
In summary, the utility model embodiment discloses a kind of semitrailer crossbeam and semitrailer, to solve prior art
Many technological deficiencies existing for middle semitrailer.The semitrailer crossbeam and semitrailer that the utility model embodiment provides so that under rear
The junction of wing plate 10 and suspender 40, the junction of gooseneck lower wing plate 20 and rear lower wing plate 10 are not easy to break, and upper flange 50
It is not easy to be broken with the junction of traction cross bearer 60 and tail trimmer 70, also the technical advantage with fuel-economizing.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of semitrailer crossbeam, it is characterised in that including rear lower wing plate and suspender；
Wherein, the rear lower wing plate includes lower wing plate flat part and two lower wing plate side plates, two lower wing plate side plates
The both sides relative positioned at the lower wing plate flat part, form the structure that cross section is U-shape；
U-shape it is described after lower wing plate opening upwards set or it is down-set, and the lower wing plate flat part with it is described
Suspender connects.
2. semitrailer crossbeam according to claim 1, it is characterised in that
It is connected smoothly between the lower wing plate flat part and two lower wing plate side plates using cambered surface.
3. semitrailer crossbeam according to claim 1, it is characterised in that
U-shape it is described after lower wing plate Open Side Down set.
4. semitrailer crossbeam according to claim 3, it is characterised in that
The semitrailer crossbeam also includes gooseneck lower wing plate；The gooseneck lower wing plate and lower wing plate flat part in the rear lower wing plate
Lower surface overlap joint fix.
5. according to the semitrailer crossbeam described in claim any one of 1-4, it is characterised in that
The semitrailer crossbeam also includes traction cross bearer, upper flange and tail trimmer；
The upper flange includes upper flange flat part and two upper flange side plates, and two upper flange side plates are positioned at described
The both sides of upper flange flat part, form the structure that cross section is U-shape；Open Side Down sets for the upper flange of U-shape
Put；
The upper flange flat part is connected smoothly with two upper flange side plates using cambered surface；The upper flange is put down
Plate portion and the transition junction of two upper flange side plates are welded with the traction cross bearer and the tail trimmer respectively.
6. semitrailer crossbeam according to claim 5, it is characterised in that
The semitrailer crossbeam also includes bearing diagonal, and the cross section of the bearing diagonal is shape；One end of the bearing diagonal with
The wherein tail trimmer connection of side, the other end of the bearing diagonal are fixedly connected with the respective side of the traction cross bearer.
7. a kind of semitrailer, it is characterised in that including the semitrailer crossbeam as described in claim any one of 1-6, in addition to lead
Draw car；The semitrailer crossbeam is connected with the tractor.
8. semitrailer according to claim 7, it is characterised in that
The semitrailer also includes afterbody rear protecting assembly；The afterbody rear protecting assembly detachably connects with the semitrailer crossbeam
Connect.
9. semitrailer according to claim 8, it is characterised in that
The afterbody rear protecting assembly includes mark beam, Bumper and wind deflector；The mark beam is located at the Bumper
Top, and the mark beam and the Bumper are channel-section steel structure of the opening towards the headstock direction of the semitrailer；
The wind deflector is slab construction；The wind deflector is arranged on the front of the mark beam and the Bumper, and institute
The upper end for stating wind deflector is higher than the mark beam, and the lower end of the wind deflector is less than the Bumper.
10. semitrailer according to claim 9, it is characterised in that
The wind deflector is from top to bottom obliquely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337548.4U CN206644874U (en) | 2017-03-31 | 2017-03-31 | Semitrailer crossbeam and semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337548.4U CN206644874U (en) | 2017-03-31 | 2017-03-31 | Semitrailer crossbeam and semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206644874U true CN206644874U (en) | 2017-11-17 |
Family
ID=60274645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720337548.4U Expired - Fee Related CN206644874U (en) | 2017-03-31 | 2017-03-31 | Semitrailer crossbeam and semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206644874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864597A (en) * | 2017-03-31 | 2017-06-20 | 王文贵 | Semitrailer crossbeam and semitrailer |
-
2017
- 2017-03-31 CN CN201720337548.4U patent/CN206644874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106864597A (en) * | 2017-03-31 | 2017-06-20 | 王文贵 | Semitrailer crossbeam and semitrailer |
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