CN110562325A - Gooseneck trailer longitudinal beam spliced in sections, trailer frame and trailer - Google Patents
Gooseneck trailer longitudinal beam spliced in sections, trailer frame and trailer Download PDFInfo
- Publication number
- CN110562325A CN110562325A CN201910722394.4A CN201910722394A CN110562325A CN 110562325 A CN110562325 A CN 110562325A CN 201910722394 A CN201910722394 A CN 201910722394A CN 110562325 A CN110562325 A CN 110562325A
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- Prior art keywords
- longitudinal beam
- gooseneck
- trailer
- front longitudinal
- plate
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- 244000261422 Lysimachia clethroides Species 0.000 title claims abstract description 76
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 8
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/06—Semi-trailers
- B62D53/061—Semi-trailers of flat bed or low loader type or fitted with swan necks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a gooseneck trailer longitudinal beam spliced in sections, which comprises a front longitudinal beam, a rear longitudinal beam and a splicing structure, wherein the front longitudinal beam and the rear longitudinal beam are divided at a gooseneck part and are connected together through the splicing structure; the splicing structure comprises a connecting vertical plate, two surfaces of the connecting vertical plate are respectively fixed on a web plate of the front longitudinal beam and a web plate of the rear longitudinal beam, the bottom end of the connecting vertical plate is fixed with a lower wing plate of the front longitudinal beam, the top end of the connecting vertical plate is fixed with the front longitudinal beam, and the tail end of the lower wing plate of the front longitudinal beam extends backwards to enable the lower wing plate of the rear longitudinal beam to be lapped on a lower wing plate of the front longitudinal beam. The gooseneck trailer longitudinal beam spliced in sections has the advantages of sectional design, matching of frames with different gooseneck step height differences and stable and simple connecting structure.
Description
Technical Field
The invention relates to a trailer structure, in particular to a gooseneck trailer longitudinal beam spliced in sections, a trailer frame with the longitudinal beam and a trailer with the trailer frame.
Background
According to the limitation of the height of the outer shape of the compartment trailer by national policy, the low-load trailer has large cargo capacity and stable running and transportation within the height range of the outer shape specified by the regulations, so that the low-load trailer with the gooseneck high-low steps becomes the main vehicle type in the market.
In the market practical application process, the gooseneck trailer can be according to goods and load requirement, the gooseneck step of design co-altitude, present gooseneck trailer is in the actual production process, whole car longeron needs whole processing, but because the gooseneck trailer need match different gooseneck differences in height (bottom plate difference in height), the model that leads to the longeron web is numerous, it is big to have the processing degree of difficulty, the problem that material utilization is low, moreover, whole car longeron length is longer, it is big to have occupation space, short slab such as commodity circulation transportation difficulty.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a gooseneck trailer longitudinal beam which is designed in a sectional mode, matched with frames with different height differences of gooseneck steps and stable and simple in connection structure and can be spliced in a sectional mode.
In order to achieve the purpose, the invention adopts the technical scheme that: a gooseneck trailer longitudinal beam spliced in sections comprises a front longitudinal beam, a rear longitudinal beam and a splicing structure, wherein the front longitudinal beam and the rear longitudinal beam are divided at a gooseneck and are connected together through the splicing structure; the splicing structure comprises a connecting vertical plate, two surfaces of the connecting vertical plate are respectively fixed on a web plate of the front longitudinal beam and a web plate of the rear longitudinal beam, the bottom end of the connecting vertical plate is fixed with a lower wing plate of the front longitudinal beam, the top end of the connecting vertical plate is fixed with the front longitudinal beam, and the tail end of the lower wing plate of the front longitudinal beam extends backwards to enable the lower wing plate of the rear longitudinal beam to be lapped on a lower wing plate of the front longitudinal beam.
Basically, the tail end of front longitudinal beam is provided with the gooseneck platform stull, the terminal web upper end of front longitudinal beam and the terminal position department of joining in marriage of last pterygoid lamina set up the step mouth, the gooseneck platform stull is the U-shaped groove structure that both sides are high not waiting, U-shaped groove structure opening is fixed towards the back step mouth department, the long limit of U-shaped groove structure is under last, the minor face, the top of connecting the riser is supported to the long limit inboard and the welded fastening of U-shaped groove structure, the minor face of U-shaped groove structure supports to the surface and the welded fastening of connecting the riser.
The splicing structure further comprises a gooseneck reinforcing rib, the upper end of the gooseneck reinforcing rib is fixed to the bottom face of the upper wing plate of the front longitudinal beam, the lower end of the gooseneck reinforcing rib is fixed to the surface of the connecting vertical plate, the height of the lower end of the gooseneck reinforcing rib is consistent with that of the upper wing plate of the rear longitudinal beam, and the gooseneck reinforcing rib, the upper portion of the connecting vertical plate and the rear portion of the upper wing plate of the front longitudinal beam are encircled to form a triangle.
Basically, the upper end of gooseneck reinforcing rib is provided with a bent plane, and the plane is attached to the bottom surface of the lower wing plate of the front longitudinal beam.
The bottom end of the connecting vertical plate is a tip end.
Basically, the connecting vertical plate is provided with hollow through holes.
The front longitudinal beam and the rear longitudinal beam are fixed with the U-shaped groove structure, the front longitudinal beam is fixed with the web plate of the front longitudinal beam, the rear longitudinal beam is fixed with the web plate of the rear longitudinal beam, the front longitudinal beam is fixed with the rear longitudinal beam through welding, and the gooseneck reinforcement rib is fixed with the front longitudinal beam and the connecting vertical plate through welding.
Basically, a welding seam opening is reserved on the long edge of the U-shaped groove structure corresponding to the connecting vertical plate.
The utility model provides a trailer frame of gooseneck trailer longeron with segmentation concatenation, includes preceding frame and back frame, preceding frame is cut apart in gooseneck department with back frame, preceding frame passes through with back frame mosaic structure concatenation fixed together, the gooseneck platform stull spanes two front longitudinal of preceding frame, the both ends concatenation department of frame around two is fixed respectively at the both ends of gooseneck platform stull.
A trailer with the trailer frame comprises a trailer frame, a road wheel and a carriage.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the invention is based on the design concept of segmented prefabrication, the frame and the longitudinal beam are integrally divided into a front section and a rear section from the gooseneck, the rear section is in a uniform prefabricated size and does not need to be adjusted, the front section is designed and manufactured according to the required height difference, and then the front section and the rear section are spliced together through the splicing structure, thereby realizing customized production, reducing the processing difficulty, improving the material utilization rate and facilitating logistics transportation and storage.
In addition, through the structural design of the splicing structure, the rear half frame can adapt to the front-section frames with different heights, and higher structural strength is achieved, so that the adaptability of the splicing structure is greatly improved.
Drawings
Fig. 1 and 2 are schematic structural views of a gooseneck trailer longitudinal beam in the prior art.
Fig. 3 is a schematic structural view of a segmented gooseneck trailer longitudinal beam according to the present invention.
Fig. 4 is an enlarged view of a in fig. 3.
Fig. 4-1 is an isometric view of an enlarged view at a in fig. 3.
Fig. 4-2 is a rear perspective view of an enlarged view at a in fig. 3.
Fig. 5 is a schematic structural view of the trailer frame in embodiment 2.
Fig. 6 is a schematic structural view of the trailer in embodiment 3.
In the figure: 1. a front longitudinal beam; 11. an upper wing plate; 12. a web; 13. a lower wing plate; 2. a rear stringer; 21. an upper wing plate; 22. a web; 23. a lower wing plate; 3. connecting a vertical plate; 4. a gooseneck platform cross brace; 41. a long side; 42. a short side; 5. reinforcing ribs for goosenecks; 6. a front frame; 7. a rear frame; 8. a gooseneck; 9. a carriage; 10. and (5) traveling wheels.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
As shown in fig. 3, 4-1 and 4-2, the gooseneck trailer longitudinal beam comprises a front longitudinal beam 1, a rear longitudinal beam 2 and a splicing structure, wherein the front longitudinal beam 1 and the rear longitudinal beam 2 are divided at the gooseneck and connected together through the splicing structure; the splicing structure comprises a connecting vertical plate 3, two surfaces of the connecting vertical plate 3 are respectively welded and fixed on a web 12 of the front longitudinal beam 1 and a web 22 of the rear longitudinal beam 2, the bottom end of the connecting vertical plate 3 is welded and fixed with a lower wing plate 13 of the front longitudinal beam 1, the top end of the connecting vertical plate 3 is welded and fixed with the front longitudinal beam 1, and the tail end of the lower wing plate 13 of the front longitudinal beam 1 extends backwards so that a lower wing plate 23 of the rear longitudinal beam 2 is lapped on the lower wing plate 13 of the front longitudinal beam 1 and is welded and fixed.
Through the connection mode of connecting riser 3 relay, the back longeron 2 of unified specification can match the front longitudinal beam 1 of different difference in height, only needs to make the connecting riser 3 that corresponds the height according to the front longitudinal beam height of installation, just can accomplish the matching concatenation between them, for whole manufacturing, cost greatly reduced, the technological requirement also corresponding reduction.
Wherein, the bottom end of the connecting vertical plate is a tip end. The transverse welding seams between the front longitudinal beam lower wing plate 13 and the front longitudinal beam lower wing plate can be reduced, and the strength of the lower wing plate is ensured.
The tail end of front longitudinal beam 1 is provided with gooseneck platform stull 4, the terminal web 12 upper end of front longitudinal beam and the terminal position department of joining of upper wing plate 11 set up step mouth 14, gooseneck platform stull 4 is the U-shaped groove structure that both sides are not high enough, U-shaped groove structure opening is fixed towards the back step mouth 14 department, the long limit 41 of U-shaped groove structure is under upper and short edge 42, the top of connecting riser 3 is supported to the long limit 41 inboard and welded fastening of U-shaped groove structure, the short edge 42 of U-shaped groove structure supports to the surface and welded fastening of connecting riser 3, correspond on the long limit of U-shaped groove structure connect riser department and leave the weld mouth, avoid the too much extra space that occupies of solder, influence the installation of other accessories.
One purpose of gooseneck platform stull 4 is to increase the structural stability who connects riser 3 top and front longitudinal 1, and another purpose is to be connected together two longerons of frame and the boundary beam of frame, through gooseneck platform stull 4, with the dispersion transmission of atress, plays the effect of whole stability.
In order to further enhance the structural stability, the splicing structure further comprises a gooseneck reinforcing rib 5, the upper end of the gooseneck reinforcing rib 5 is a bent plane, and is attached to the bottom surface of the upper wing plate 11 of the front longitudinal beam 1 and welded and fixed, the lower end of the gooseneck reinforcing rib 5 is fixed on the surface of the connecting vertical plate 3, the height of the lower end of the gooseneck reinforcing rib 5 is consistent with that of the upper wing plate 21 of the rear longitudinal beam 2, and the gooseneck reinforcing rib 5, the upper part of the connecting vertical plate 3 and the rear part of the upper wing plate 11 of the front longitudinal beam are encircled to form a triangle.
The triangle-shaped structure of own possesses the characteristics of strong stability, and in addition, the lower extreme of gooseneck reinforcement muscle 5 aligns with the last pterygoid lamina 21 of back longeron 2, forms the transmission of front longitudinal and back longeron gooseneck department power, avoids stress too concentrated, effectively promotes the stability of structure.
The connecting vertical plate is provided with hollow through holes for the purpose of meeting additional requirements such as wiring and the like.
Example 2
As shown in fig. 5, a trailer frame with the segmented and spliced gooseneck trailer longitudinal beams comprises a front frame 6 and a rear frame 7, wherein the front frame 6 and the rear frame 7 are divided at the gooseneck, the front frame 6 and the rear frame 7 are spliced and fixed together through the splicing structure, the gooseneck platform cross-brace 4 spans two front longitudinal beams of the front frame 6, and two ends of the gooseneck platform cross-brace 4 are respectively fixed at the splicing positions of two ends of the two front and rear frames.
Through the mode of concatenation, realize the back frame 7 of unified standard can adapt to the preceding frame 6 of different standards to satisfy the demand of high customization and reduction in production cost and technological requirement, simultaneously, the structural design of gooseneck platform stull 4 makes the atress of mosaic structure department can transmit to whole frame through this stull, makes the atress even.
Example 3
As shown in fig. 6, a trailer with the trailer frame comprises the trailer frame, the road wheels 10 and the carriage 9, and has the advantages of low production cost, simple manufacturing process and adaptability to highly customized requirements.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a gooseneck trailer longeron of segmentation concatenation which characterized in that: the front longitudinal beam and the rear longitudinal beam are divided at a gooseneck part and connected together through the splicing structure; the splicing structure comprises a connecting vertical plate, two surfaces of the connecting vertical plate are respectively fixed on a web plate of the front longitudinal beam and a web plate of the rear longitudinal beam, the bottom end of the connecting vertical plate is fixed with a lower wing plate of the front longitudinal beam, the top end of the connecting vertical plate is fixed with the front longitudinal beam, and the tail end of the lower wing plate of the front longitudinal beam extends backwards to enable the lower wing plate of the rear longitudinal beam to be lapped on a lower wing plate of the front longitudinal beam.
2. The segmented gooseneck trailer longitudinal beam of claim 1, wherein: the tail end of front longitudinal beam is provided with the gooseneck platform stull, the terminal web upper end of front longitudinal beam and the terminal position department of handing over of last pterygoid lamina set up the step mouth, the gooseneck platform stull is the U-shaped groove structure that both sides are not high, U-shaped groove structure opening is towards fixing backward step mouth department, the long limit of U-shaped groove structure is under last, minor face, the top of connecting the riser is supported to the long limit inboard and the welded fastening of U-shaped groove structure, the minor face of U-shaped groove structure supports to the surface and the welded fastening of connecting the riser.
3. The segmented gooseneck trailer longitudinal beam of claim 1 or 2, wherein: the splicing structure further comprises a gooseneck reinforcing rib, the upper end of the gooseneck reinforcing rib is fixed to the bottom surface of the upper wing plate of the front longitudinal beam, the lower end of the gooseneck reinforcing rib is fixed to the surface of the connecting vertical plate, the height of the lower end of the gooseneck reinforcing rib is consistent with that of the upper wing plate of the rear longitudinal beam, and the gooseneck reinforcing rib, the upper portion of the connecting vertical plate and the rear portion of the upper wing plate of the front longitudinal beam are encircled to form a triangle.
4. The segmented gooseneck trailer longitudinal beam of claim 3, wherein: the upper end of the gooseneck reinforcing rib is provided with a bent plane, and the plane is attached to the bottom surface of the lower wing plate of the front longitudinal beam.
5. The segmented gooseneck trailer longitudinal of claim 1, 2 or 4, wherein: the bottom end of the connecting vertical plate is a tip end.
6. The segmented gooseneck trailer longitudinal beam of claim 5, wherein: the connecting vertical plate is provided with a hollow through hole.
7. The segmented gooseneck trailer longitudinal of claim 2, 4 or 6, wherein: the connecting vertical plate is fixed with the web plate of the front longitudinal beam, the web plate of the rear longitudinal beam, the lower wing plate of the front longitudinal beam and the U-shaped groove structure respectively in a welding mode, the lower wing plate of the front longitudinal beam and the lower wing plate of the rear longitudinal beam are fixed in a welding mode, and two ends of the gooseneck reinforcing rib are fixed with the upper wing plate of the front longitudinal beam and the connecting vertical plate in a welding mode respectively.
8. The segmented gooseneck trailer longitudinal beam of claim 2, wherein: and a welding seam opening is reserved on the long edge of the U-shaped groove structure corresponding to the connecting vertical plate.
9. A trailer stand having segmented gooseneck trailer stringers as claimed in any one of claims 1 to 8, wherein: the front frame and the rear frame are divided at the gooseneck position, the front frame and the rear frame are fixedly spliced together through the splicing structure, the gooseneck platform cross brace spans two front longitudinal beams of the front frame, and two ends of the gooseneck platform cross brace are respectively fixed at two splicing positions of the front frame and the rear frame.
10. A trailer having the trailer stand of claim 9, wherein: comprises a trailer frame, a road wheel and a carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722394.4A CN110562325B (en) | 2019-08-06 | 2019-08-06 | Gooseneck trailer longitudinal beam, trailer frame and trailer of segmentation concatenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722394.4A CN110562325B (en) | 2019-08-06 | 2019-08-06 | Gooseneck trailer longitudinal beam, trailer frame and trailer of segmentation concatenation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110562325A true CN110562325A (en) | 2019-12-13 |
| CN110562325B CN110562325B (en) | 2024-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910722394.4A Active CN110562325B (en) | 2019-08-06 | 2019-08-06 | Gooseneck trailer longitudinal beam, trailer frame and trailer of segmentation concatenation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900132A (en) * | 2019-12-25 | 2020-03-24 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| CN112158261A (en) * | 2020-09-23 | 2021-01-01 | 福建省闽铝轻量化汽车制造有限公司 | Full-assembly type aluminum alloy frame assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205087032U (en) * | 2015-11-07 | 2016-03-16 | 梁山中集东岳车辆有限公司 | Three -section gooseneck type semi -trailer longitudinal beam |
| CN207790846U (en) * | 2018-01-04 | 2018-08-31 | 中集车辆（集团）有限公司 | Semi-trailer frame and semitrailer |
| CN108945107A (en) * | 2018-07-24 | 2018-12-07 | 山东荣昊专用汽车有限公司 | The full aluminium longitudinal beam structure of semitrailer |
| CN211364721U (en) * | 2019-08-06 | 2020-08-28 | 驻马店中集华骏车辆有限公司 | Gooseneck trailer longitudinal beam spliced in sections, trailer frame and trailer |
-
2019
- 2019-08-06 CN CN201910722394.4A patent/CN110562325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205087032U (en) * | 2015-11-07 | 2016-03-16 | 梁山中集东岳车辆有限公司 | Three -section gooseneck type semi -trailer longitudinal beam |
| CN207790846U (en) * | 2018-01-04 | 2018-08-31 | 中集车辆（集团）有限公司 | Semi-trailer frame and semitrailer |
| CN108945107A (en) * | 2018-07-24 | 2018-12-07 | 山东荣昊专用汽车有限公司 | The full aluminium longitudinal beam structure of semitrailer |
| CN211364721U (en) * | 2019-08-06 | 2020-08-28 | 驻马店中集华骏车辆有限公司 | Gooseneck trailer longitudinal beam spliced in sections, trailer frame and trailer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900132A (en) * | 2019-12-25 | 2020-03-24 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| CN110900132B (en) * | 2019-12-25 | 2021-04-27 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| CN112158261A (en) * | 2020-09-23 | 2021-01-01 | 福建省闽铝轻量化汽车制造有限公司 | Full-assembly type aluminum alloy frame assembly |
| CN112158261B (en) * | 2020-09-23 | 2021-12-31 | 福建省闽铝轻量化汽车制造有限公司 | Full-assembly type aluminum alloy frame assembly |
Also Published As
| Publication number | Publication date |
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| CN110562325B (en) | 2024-11-01 |
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