CN109131581A - A kind of semitrailer crossbeam and the body frame with the semitrailer crossbeam - Google Patents
A kind of semitrailer crossbeam and the body frame with the semitrailer crossbeam Download PDFInfo
- Publication number
- CN109131581A CN109131581A CN201811089148.1A CN201811089148A CN109131581A CN 109131581 A CN109131581 A CN 109131581A CN 201811089148 A CN201811089148 A CN 201811089148A CN 109131581 A CN109131581 A CN 109131581A
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- Prior art keywords
- plate
- support plate
- web
- firm
- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
- B62D21/20—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 trailer type, i.e. a frame specifically constructed for use in a non-powered vehicle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The present invention relates to a kind of semitrailer crossbeam and with the body frame of the semitrailer crossbeam, belong to semitrailer technical field, solve prior art median ventral plate and upper flange, the contact area of lower wing plate is smaller and the technical issues of reducing web installation strength, semitrailer crossbeam includes main paragraph, linkage section, main paragraph and linkage section include horizontally disposed upper flange and lower wing plate, the web being vertically set between upper flange and lower wing plate, web includes support plate, the upper firm plate for being installed in support plate top and fitting with upper flange, the upper reinforcement inclined plate being installed between firm plate and support plate, the lower firm plate for being installed in support plate bottom end and fitting with lower wing plate, the lower reinforcement inclined plate being installed between lower firm plate and support plate.The semitrailer crossbeam improves the installation strength of web by upper firm plate, lower firm plate, while by upper reinforcement inclined plate, lower reinforcement inclined plate, improving the ability of anti-deformation of support plate, further improving the bearing capacity of semitrailer crossbeam.
Description
Technical field
The present invention relates to semitrailer technical field, in particular to a kind of semitrailer crossbeam and the vehicle with the semitrailer crossbeam
Chassis.
Background technique
Semitrailer is that axle is placed in behind vehicle's center of gravity, and the connection that horizontal and vertical power can be transmitted to tractor is housed
Tie the trailer of device.Since the vehicle body of semitrailer is very long, semitrailer crossbeam is the main load-supporting part of vehicle body, plays support compartment
Effect.Semitrailer crossbeam in the prior art mainly includes horizontally disposed upper flange and lower wing plate, setting upper
Web between wing plate and lower wing plate, and the both ends of web are directly welded on upper flange and lower wing plate, due to web and upper limb
Plate, the contact area of lower wing plate are smaller, to reduce the installation strength of web.
Summary of the invention
The purpose of the present invention is to provide a kind of semitrailer crossbeam, by consolidated in the setting of the both ends of support plate plate, under
Firm plate, improves the contact area of support plate and upper flange, lower wing plate, so that the installation strength of web is improved, while on
Reinforce inclined plate, the lower setting for reinforcing inclined plate, improves the ability of anti-deformation of support plate, further improve holding for semitrailer crossbeam
Loading capability.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of semitrailer crossbeam, including main paragraph, along main paragraph length direction extend and top surface be higher than main paragraph top surface connection
Section, the main paragraph and linkage section form the ladder-like of smooth transition, and the main paragraph and linkage section include horizontally disposed
The top surface of upper flange and lower wing plate, the web being vertically set between upper flange and lower wing plate, the linkage section web is higher than master
The top surface of body section web, the web include support plate, are vertically installed in support plate top and fit with upper flange upper steady
Solid plate, the upper reinforcement inclined plate being installed between firm plate and support plate, vertically be installed in support plate bottom end and with lower wing plate phase
The lower firm plate of fitting, the lower reinforcement inclined plate being installed between lower firm plate and support plate.
It is set by consolidating plate in the setting of the top of support plate in the bottom end of support plate by using above-mentioned technical proposal
Lower firm plate is set, the contact area of support plate and upper flange, lower wing plate is increased, to improve the installation strength of web, together
When between upper firm plate and support plate setting on reinforce inclined plate, between lower firm plate and support plate be arranged under reinforce inclined plate,
The ability of anti-deformation for improving support plate further improves the bearing capacity of semitrailer crossbeam.
The present invention is further arranged to: the upper firm plate and lower firm plate are located at the same side of support plate.
By using above-mentioned technical proposal, not only makes the processing of firm plate and lower firm plate more convenient, improve simultaneously
The installation strength of support plate.
The present invention is further arranged to: described upper reinforcement inclined plate one end and upper firm plate far from support plate are far from support plate
One end be installed with and be arranged in parallel and at interval upper junction plate with support plate, described lower one end for reinforcing inclined plate far from support plate and
Firm plate is installed with far from one end of support plate and is arranged in parallel and at interval lower connecting plate with support plate down.
By using above-mentioned technical proposal, upper reinforcement inclined plate is fixedly connected by upper junction plate with upper firm plate, lower reinforcement
Inclined plate is fixedly connected by lower connecting plate with lower firm plate, while the installation strength and ability of anti-deformation for not influencing web,
Make between firm plate and upper reinforcement inclined plate, there is certain buffer function between lower firm plate and lower reinforcement inclined plate, to increase
The stability used and the service life of web are added.
The present invention is further arranged to: the junction of the upper junction plate and upper firm plate, upper firm plate and support plate
The junction of the junction of the chamfered setting in junction, the lower connecting plate and lower firm plate, lower firm plate and support plate is equal
Chamfered setting.
By using above-mentioned technical proposal, web junction is not only avoided to scratch operator, but also facilitates adding for web
Work and web is mounted between upper flange and lower wing plate, while increasing upper flange and upper firm plate, lower wing plate and lower steady
Bonding area between solid plate further improves the installation strength and stability of web.
The present invention is further arranged to: be installed between the upper reinforcement inclined plate and lower reinforcement inclined plate it is parallel with support plate and
Spaced auxiliary support plate.
By using above-mentioned technical proposal, auxiliary support plate is arranged between upper reinforcement inclined plate and lower reinforcement inclined plate, increases
The ability of anti-deformation of web, improves the bearing capacity of semitrailer crossbeam.
The present invention is further arranged to: the upper both ends for reinforcing inclined plate are located at the two sides of auxiliary support plate.
By using above-mentioned technical proposal, not only make the installation of auxiliary support plate more convenient, and make to reinforce inclined plate, under
Reinforce inclined plate and plays the role of reinforcement to auxiliary support plate, i.e., it is upper to reinforce inclined plate, lower reinforcement inclined plate simultaneously to support plate, auxiliary branch
Fagging plays the role of reinforcement simultaneously.
The present invention is further arranged to: the web side offers row setting in the shape of an " I " along its length
Via hole, linkage section web side offer multiple lightening holes above via hole.
By using above-mentioned technical proposal, via hole is used for the installation of two semitrailer crossbeams, and lightening hole reduces semitrailer
The self weight of crossbeam.
The purpose of the present invention is to provide a kind of body frames, by the way that linkage section web is protruded at the both ends of the first positioning plate
The both ends of second positioning plate, are protruded into the inside of main paragraph web by inside, not only realize the positioning peace of two semitrailer crossbeams
Dress, and keep the installation of the first positioning plate, the second positioning plate more convenient.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of body frame including above-mentioned and symmetrically arranged two semitrailer crossbeams, is arranged between two semitrailer crossbeams
Positioning plate, the support plate of the semitrailer crossbeam linkage section web, the support plate of semitrailer crossbeam main paragraph web are close to fixed
Position plate setting, the positioning plate includes being arranged at intervals between two semitrailer crossbeam linkage sections along semitrailer crossbeam length direction
Multiple first positioning plates, be arranged at intervals on along semitrailer crossbeam length direction it is multiple between two semitrailer crossbeam main paragraphs
The inside of linkage section web is protruded at second positioning plate, the both ends of first positioning plate, and the linkage section web offers and the
The inside of main paragraph web, the main body are protruded into the both ends of compatible first welding hole of one positioning plate, second positioning plate
Section web offers the second welding hole compatible with the second positioning plate.
By using above-mentioned technical proposal, the both ends of the first positioning plate are protruded into the inside of linkage section web, the second positioning
The inside of main paragraph web is protruded at the both ends of plate, and the first positioning plate and the second positioning plate realize determining for two semitrailer crossbeams
Position, while facilitating the installation of the first positioning plate and the second positioning plate.
The present invention is further arranged to: the structure of first positioning plate and the second positioning plate is identical.
By using above-mentioned technical proposal, keep the processing and installation of the first positioning plate and the second positioning plate more convenient.
The present invention is further arranged to: first positioning plate include cross section setting in the shape of an " I " positioning mainboard,
Two plugboards for being installed in positioning mainboard both ends and being extended along positioning main board length direction, the plugboard are remotely located
One end of mainboard passes through the inside that the first welding hole is located at linkage section web.Extend what edge positioning main board length direction was extended
Plugboard.
By using above-mentioned technical proposal, web is protruded by the first welding hole in one end of the remotely located mainboard of plugboard
Inside to realize the positioning of the first positioning plate, and then keeps the installation of the first positioning plate more convenient.
In conclusion the invention has the following advantages:
1, semitrailer crossbeam of the invention improves support plate by consolidating plate, lower firm plate in the setting of the both ends of support plate
With the contact area of upper flange, lower wing plate, to improve the installation strength of web, while upper reinforcement inclined plate, lower reinforcement inclined plate
Setting, improve the ability of anti-deformation of support plate, further improve the bearing capacity of semitrailer crossbeam.
2, by the way that auxiliary support plate is arranged between upper reinforcement inclined plate and lower reinforcement inclined plate, the anti-deformation energy of web is increased
Power improves the bearing capacity of semitrailer crossbeam.
3, the body frame with the semitrailer crossbeam of the invention, by the way that linkage section abdomen is protruded at the both ends of the first positioning plate
The both ends of second positioning plate, are protruded into the inside of main paragraph web by the inside of plate, not only realize determining for two semitrailer crossbeams
Position installation, and keep the installation of the first positioning plate, the second positioning plate more convenient.
4, the plugboard of the first positioning plate protrudes into linkage section web by the first welding hole in one end of remotely located mainboard
Inside, to realize the positioning of the first positioning plate, and then keep the installation of the first positioning plate more convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the top view of embodiment；
Fig. 3 is the partial sectional view in the direction A-A in Fig. 2；
Fig. 4 is the partial sectional view in the direction B-B in Fig. 2；
Fig. 5 is the structural schematic diagram of the first positioning plate in embodiment.
In figure, 11, main paragraph；12, linkage section；21, the first positioning plate；211, mainboard is positioned；2111, loss of weight through-hole；
212, plugboard；22, the second positioning plate；31, upper flange；32, lower wing plate；33, web；331, via hole；332, lightening hole；41,
Support plate；42, upper firm plate；43, upper junction plate；44, upper reinforcement inclined plate；45, lower firm plate；46, lower connecting plate；47, lower to add
Strong inclined plate；48, auxiliary support plate.
Specific embodiment
Embodiment, a kind of body frame, as shown in Figure 1, including two along the symmetrically arranged semitrailer crossbeam in plummet face, setting
Positioning plate between two semitrailer crossbeams.
As shown in Figure 1, semitrailer crossbeam includes main paragraph 11, the one end of main paragraph 11 along its length, which extends, to be installed with
Linkage section 12, the top surface of linkage section 12 is higher than the top surface of main paragraph 11, and linkage section 12 and main paragraph 11 form smooth transition
Ladder-like, the top surface of the one end of main paragraph 11 far from linkage section 12 is set as cambered surface, and the bending direction of cambered surface is down-set.
As shown in Figure 1, positioning plate includes the first positioning plate 21 and the second positioning plate 22, the first positioning plate 21 and second is positioned
The structure of plate 22 is identical.The quantity of first positioning plate 21 is set as three, and three the first positioning plates 21 are long along semitrailer ontology
Degree direction is arranged at intervals between two semitrailer crossbeam linkage sections 12.The quantity of second positioning plate 22 is set as two, and two
A second positioning plate 22 is arranged at intervals between two semitrailer crossbeam main paragraphs 11 along semitrailer body length direction.
As shown in Figures 2 and 3, main paragraph 11 and linkage section 12 include upper flange 31, lower wing plate 32 and web 33, on
Wing plate 31 and lower wing plate 32 are in a horizontal state setting, and web 33 is vertically set between upper flange 31 and lower wing plate 32, and abdomen
Plate 33 is located at upper flange 31, lower wing plate 32 along the middle of its width direction.As shown in connection with fig. 1, web 33 is along its length
It offers one and is drained through hole 331, the setting in the shape of an " I " of via hole 331, and the web 33 of linkage section 12 is in the top interval of via hole 331
Multiple lightening holes 332 are offered, the quantity of lightening hole 332 is set as 12 in the present embodiment.
As shown in figure 3, web 33 includes the support plate 41 being arranged between upper flange 31 and lower wing plate 32.Support plate 41
Top is vertically installed with firm plate 42, and the top surface of upper firm plate 42 and the bottom surface of upper flange 31 fit, and upper firm plate 42
It is welded between upper flange 31, the chamfered setting in junction of upper firm plate 42 and support plate 41.Upper firm plate 42 is far from support
One end of plate 41 is vertically installed with upper junction plate 43, and upper junction plate 43 is parallel with support plate 41 and interval is arranged, upper junction plate 43
With the chamfered setting in junction of upper firm plate 42.Upper junction plate 43 is provided with upper reinforcement inclined plate far from one end of upper firm plate 42
44, upper reinforcement inclined plate 44 is welded on the side of support plate 41 far from one end of upper junction plate 43.
As shown in figure 3, the bottom end of support plate 41 is vertically installed with lower firm plate 45, the bottom surface of lower firm plate 45 and lower wing plate
32 top surface fits, and lower firm plate 45 and upper firm plate 42 are located at the same side of support plate 41, and lower firm plate 45 and bottom wing
It is welded between plate 32, the chamfered setting in junction of lower firm plate 45 and support plate 41.Firm plate 45 is far from support plate 41 down
One end is vertically installed with lower connecting plate 46, and lower connecting plate 46 is parallel with support plate 41 and interval setting, lower connecting plate 46 and lower steady
The chamfered setting in the junction of solid plate 45.Lower connecting plate 46 is provided with lower reinforcement inclined plate 47 far from one end of lower firm plate 45, under
Reinforce inclined plate 47 to be welded on far from one end of lower connecting plate 46 on the side of support plate 41.
As shown in figure 3, being welded with auxiliary support plate 48, auxiliary support plate between upper reinforcement inclined plate 44 and lower reinforcement inclined plate 47
48 and interval settings parallel with support plate 41, and the upper both ends for reinforcing inclined plate 44 are located at the two sides of auxiliary support plate 48, i.e., it is lower to add
The both ends of strong inclined plate 47 are located at the two sides of auxiliary support plate 48.
The semitrailer crossbeam is arranged by consolidating plate 42 in the setting of the top of support plate 41 in the bottom end of support plate 41
Firm plate 45 down, increases the contact area of support plate 41 and upper flange 31, lower wing plate 32；By in the separate branch of upper firm plate 42
Upper junction plate 43 is arranged in 41 one end of fagging, and lower connecting plate 46 is arranged far from 41 one end of support plate in lower firm plate 45；By propping up
Reinforce inclined plate 44 between fagging 41 and upper junction plate 43 in setting, reinforces under being arranged between support plate 41 and lower connecting plate 46 oblique
Plate 47；By the way that auxiliary support plate 48 is arranged between upper reinforcement inclined plate 44 and lower reinforcement inclined plate 47, support plate 41 is not only increased
Installation strength and ability of anti-deformation, further improve the bearing capacity of semitrailer crossbeam, at the same upper firm plate 42 and it is upper plus
Buffer cavity is formed between strong inclined plate 44, between lower firm plate 45 and lower reinforcement inclined plate 47, it is steady to increase using for web 33
The qualitative and service life.
As shown in figure 5, the first positioning plate 21 includes the positioning mainboard 211 of cross section setting in the shape of an " I ", mainboard is positioned
211 side is uniformly provided with four loss of weight through-holes 2111.The both ends extension of positioning mainboard 211 along its length is installed with slotting
Fishplate bar 212, the cross section of plugboard 212 are rectangle setting.
As shown in Figure 2 and Figure 4, two plugboards 212 of the first positioning plate 21 are respectively protruding into two semitrailer crossbeam connections
One end of the inside of 12 webs 33 of section, the remotely located mainboard 211 of plugboard 212 offsets through support plate 41 and auxiliary support plate 48
Touching, support plate 41 offers first welding hole compatible with plugboard 212, at this time positions mainboard 211 along its length
End face and support plate 41 are inconsistent, and position mainboard 211 and weld together at the first welding hole with support plate 41.
As shown in Figure 1 and Figure 4, two plugboards 212 of the second positioning plate 22 are respectively protruding into two semitrailer crossbeam main bodys
One end of the inside of 11 webs 33 of section, the remotely located mainboard 211 of plugboard 212 offsets through support plate 41 and auxiliary support plate 48
Touching, support plate 41 offers second welding hole compatible with plugboard 212, at this time positions mainboard 211 along its length
End face and support plate 41 are inconsistent, and position mainboard 211 and weld together at the second welding hole with support plate 41.
First positioning plate 21 is identical with 22 structure of the second positioning plate, makes the processing of the first positioning plate 21, the second positioning plate 22
It is more convenient with installation, while the plugboard 212 of the first positioning plate 21 passes through the auxiliary of 12 web 33 of the first welding hole and linkage section
Support plate 48 is inconsistent, and the plugboard 212 of the second positioning plate 22 passes through the auxiliary branch of 11 web 33 of the second welding hole and main paragraph
Fagging 48 is inconsistent, not only realizes the location and installation of two semitrailer crossbeams, but also makes the first positioning plate 21, the second positioning plate
22 installation is more convenient, while the plugboard 212 of the first positioning plate 21 increases the ability of anti-deformation of 12 web 33 of linkage section, the
The plugboard 212 of two positioning plates 22 increases the ability of anti-deformation of 11 web 33 of main paragraph, further improves holding for body frame
Loading capability.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of semitrailer crossbeam, including main paragraph (11), extend along main paragraph (11) length direction and top surface is higher than main paragraph
(11) linkage section (12) of top surface, the main paragraph (11) and linkage section (12) form ladder-like, the main body of smooth transition
Section (11) and linkage section (12) including horizontally disposed upper flange (31) and lower wing plate (32), be vertically set on upper flange (31)
The top surface of web (33) between lower wing plate (32), linkage section (12) web (33) is higher than main paragraph (11) web (33)
Top surface, it is characterised in that: the web (33) includes support plate (41), is vertically installed in support plate (41) top and and upper limb
Upper firm plate (42) that plate (31) fits, the upper reinforcement inclined plate being installed between firm plate (42) and support plate (41)
(44), be vertically installed in support plate (41) bottom end and fit with lower wing plate (32) lower firm plate (45), be installed in it is lower firm
Lower reinforcement inclined plate (47) between plate (45) and support plate (41).
2. semitrailer crossbeam according to claim 1, it is characterised in that: the upper firm plate (42) and lower firm plate (45)
Positioned at the same side of support plate (41).
3. semitrailer crossbeam according to claim 1, it is characterised in that: the upper reinforcement inclined plate (44) is far from support plate
(41) one end and upper firm plate (42) is installed with and interval parallel with support plate (41) far from the one end of support plate (41) and is arranged
Upper junction plate (43), described lower one end for reinforcing inclined plate (47) far from support plate (41) and lower firm plate (45) are far from support plate
(41) one end, which is installed with, is arranged in parallel and at interval lower connecting plate (46) with support plate (41).
4. semitrailer crossbeam according to claim 3, it is characterised in that: the upper junction plate (43) and upper firm plate (42)
Junction, upper firm plate (42) and support plate (41) the chamfered setting in junction, the lower connecting plate (46) and lower steady
The chamfered setting in junction of the junction of solid plate (45), lower firm plate (45) and support plate (41).
5. semitrailer crossbeam according to claim 2, it is characterised in that: the upper reinforcement inclined plate (44) and lower reinforcement inclined plate
(47) it is installed between and is arranged in parallel and at interval auxiliary support plate (48) with support plate (41).
6. semitrailer crossbeam according to claim 5, it is characterised in that: the upper both ends for reinforcing inclined plate (44) are located at auxiliary
Help the two sides of support plate (48).
7. semitrailer crossbeam according to claim 1, it is characterised in that: open along its length web (33) side
Via hole (331) equipped with row setting in the shape of an " I ", linkage section (12) web (33) side are opened above via hole (331)
Equipped with multiple lightening holes (332).
8. a kind of body frame, it is characterised in that: including as described in any one of claim 1-7 and symmetrically arranged two and half
Trailer crossbeam, the positioning plate being arranged between two semitrailer crossbeams, semitrailer crossbeam linkage section (12) web (33)
Support plate (41), the support plate (41) of semitrailer crossbeam main paragraph (11) web (33) are close to positioning plate setting, the positioning
Plate includes that multiple first be arranged at intervals between two semitrailer crossbeam linkage sections (12) along semitrailer crossbeam length direction are determined
Position plate (21), multiple second be arranged at intervals on along semitrailer crossbeam length direction between two semitrailer crossbeam main paragraphs (11)
The inside of linkage section (12) web (33), the linkage section are protruded into the both ends of positioning plate (22), first positioning plate (21)
(12) web (33) offers compatible first welding hole with the first positioning plate (21), the both ends of second positioning plate (22)
The inside of main paragraph (11) web (33) is protruded into, main paragraph (11) web (33) offers mutually to be fitted with the second positioning plate (22)
The second welding hole matched.
9. a kind of body frame according to claim 8, it is characterised in that: first positioning plate (21) and the second positioning plate
(22) structure is identical.
10. a kind of body frame according to claim 8, it is characterised in that: first positioning plate (21) includes cross section
The positioning mainboard (211) of setting in the shape of an " I ", two be installed in positioning mainboard (211) both ends and long along positioning mainboard (211)
The extended plugboard (212) in direction is spent, one end of the remotely located mainboard of the plugboard (212) (211) passes through the first weldering
Connect the inside that hole is located at linkage section (12) web (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089148.1A CN109131581B (en) | 2018-09-18 | 2018-09-18 | Semitrailer girder and vehicle underframe with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089148.1A CN109131581B (en) | 2018-09-18 | 2018-09-18 | Semitrailer girder and vehicle underframe with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109131581A true CN109131581A (en) | 2019-01-04 |
| CN109131581B CN109131581B (en) | 2020-05-08 |
Family
ID=64814686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811089148.1A Expired - Fee Related CN109131581B (en) | 2018-09-18 | 2018-09-18 | Semitrailer girder and vehicle underframe with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109131581B (en) |
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| CN113371068A (en) * | 2021-07-30 | 2021-09-10 | 重庆华川九州专用汽车有限公司 | Semitrailer frame with high torsional rigidity and bending strength |
| CN114852177A (en) * | 2022-06-09 | 2022-08-05 | 河北君宇广利专用汽车制造有限公司 | Reinforcing structure for improving overall strength of girder |
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| CN109733480A (en) * | 2019-01-16 | 2019-05-10 | 河北鹏达专用汽车有限公司 | A kind of stable semitrailer chassis and its welding procedure |
| CN113371068A (en) * | 2021-07-30 | 2021-09-10 | 重庆华川九州专用汽车有限公司 | Semitrailer frame with high torsional rigidity and bending strength |
| CN114852177A (en) * | 2022-06-09 | 2022-08-05 | 河北君宇广利专用汽车制造有限公司 | Reinforcing structure for improving overall strength of girder |
| CN114852177B (en) * | 2022-06-09 | 2023-03-21 | 河北君宇广利专用汽车制造有限公司 | Reinforcing structure for improving overall strength of girder |
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