CN114104110A - Special-shaped tubular casting beam for plate spring suspension for heavy-duty car - Google Patents
Special-shaped tubular casting beam for plate spring suspension for heavy-duty car Download PDFInfo
- Publication number
- CN114104110A CN114104110A CN202111496774.4A CN202111496774A CN114104110A CN 114104110 A CN114104110 A CN 114104110A CN 202111496774 A CN202111496774 A CN 202111496774A CN 114104110 A CN114104110 A CN 114104110A
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- connecting part
- frame
- cross beam
- spring suspension
- mounting hole
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- 238000005266 casting Methods 0.000 title claims abstract description 17
- 239000000725 suspension Substances 0.000 title claims abstract description 17
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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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
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- 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
- B62D21/09—Means for mounting load bearing surfaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a plate spring suspension special-shaped tubular casting crossbeam for a heavy-duty automobile, which belongs to the technical field of vehicle engineering and comprises a crossbeam body, wherein the crossbeam body comprises a middle special-shaped pipe, two ends of the middle special-shaped pipe are respectively provided with an upper connecting part, the upper end face of the upper connecting part is provided with a plurality of top surface mounting holes, the lower end of the upper connecting part is provided with a lower connecting part, the lower connecting part is provided with a plurality of bottom surface mounting holes, the outer side face of the lower connecting part is provided with a frame connecting part, the frame connecting part is provided with a plurality of frame mounting holes, the position where the upper connecting part is connected with the middle special-shaped pipe and the position where the frame connecting part is connected with a transition part are provided with thrust rod connecting parts, the thrust rod connecting part is provided with a thrust rod mounting hole, and the crossbeam is integrally of a hollow thin-wall structure. The invention has the advantages of good reliability, light weight, high assembly degree, strong universality and better economy.
Description
Technical Field
The invention relates to a plate spring suspension special-shaped tubular casting crossbeam for a heavy-duty automobile, and belongs to the technical field of vehicle engineering.
Background
The cross beam is an important part for connecting the longitudinal beam in the chassis frame, the cross beam connected with a rear suspension system in the current heavy-duty car frame assembly mostly adopts a casting form or a stamping assembly form, bears the bearing capacity in the vertical direction and also bears larger torsion force generated by uneven road surfaces in the running process of a car, and in the running process of the car, the driving force and the braking force are transmitted through the rod system connected with the cross beam, so that the normal running of the whole car is ensured. The rear cross beam is an important stressed part of the vehicle, particularly a double rear drive type, and the structure and the performance of the rear cross beam greatly influence the performance of the whole vehicle.
At present, the rear cross beam of the heavy-duty car adopts an I-shaped section or an integral tubular structure, and also adopts a stamping and assembling structure. The I-shaped section casting beam, the common tubular casting beam and the stamping assembly beam generally have the defects of insufficient torsional strength and low assembly efficiency, and the stamping assembly beam also has the problem of higher dead weight.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the special-shaped tubular casting beam of the leaf spring suspension for the heavy-duty automobile, which is light in weight, higher in assembly degree, stronger in universality and better in reliability and economy.
The invention is realized by the following technical scheme:
the utility model provides a leaf spring suspension abnormal shape tubulose casting crossbeam for heavy-duty car, including the crossbeam body, the crossbeam body includes middle part special-shaped pipe, the both ends of middle part special-shaped pipe respectively are equipped with one and go up connecting portion, be equipped with a plurality of top surface mounting hole on the up end of going up connecting portion, the lower extreme of going up connecting portion is equipped with down connecting portion, be equipped with a plurality of bottom surface mounting hole on the lower connecting portion, be equipped with the frame connecting portion on the lateral surface of lower connecting portion, be equipped with a plurality of frame mounting hole on the frame connecting portion, it is equipped with transition portion to go up between connecting portion and the frame connecting portion, it is equipped with the distance rod connecting portion on the position department that upper connecting portion and middle part special-shaped pipe are connected and the position department that frame connecting portion and transition portion are connected, be equipped with a distance rod mounting hole on the distance rod connecting portion, the crossbeam body is whole to be hollow thin-walled structure.
The invention is made by casting, adjusts the section shape at a proper position, reasonably optimizes the wall thickness, has smooth surface, avoids stress concentration, improves the reliability and the light weight degree of the cast beam, is connected with the frame assembly and the balance shaft support through the top surface, the bottom surface and the side surface, has higher bending and torsion resistance strength compared with the cast beam in the traditional side surface connection mode, adopts the design of variable section and unequal wall thickness for the special-shaped tubular part at the middle part, has no any lap joint boss and recess, and has more uniform stress.
The bending and twisting resistance of the beam is obviously improved compared with the cast beam with the I-shaped section. The design of the mounting holes can effectively ensure the positioning of the beam, the frame, the beam connecting plate and the balance shaft support, and prevent the positioning deflection of the axle caused by the mounting deflection of the cast beam.
Preferably, the beam body is formed by integral casting, the beam is in a left-right symmetrical structure in the vehicle running direction, and the beam is in a front-back symmetrical structure in the direction perpendicular to the vehicle running direction. The design of the symmetrical structure can provide the beam with the characteristic of more uniform strength.
Further preferably, the positions of the beam body, which are connected with each other, of the upper middle special-shaped pipe, the upper connecting part, the lower connecting part, the thrust rod connecting part, the frame connecting part and the transition part are all arc transition, and the design of the arc transition can avoid stress concentration generated at the sharp corner of the beam by torsion transmitted from a suspension system as much as possible.
Further preferably, an edge of the lower connection portion protrudes out of a bottom surface of the upper connection portion.
Further preferably, the upper connecting portion is provided with a top surface notch, the frame connecting portion is provided with a side surface notch, and the lower connecting portion is provided with a bottom surface notch.
Preferably, the top surface gap, the side surface gap and the bottom surface gap are communicated with a cavity in the beam body. The whole cross beam is of a through hollow structure, and the design is more convenient to cast.
Further preferably, the top surface mounting hole and the thrust rod mounting hole are threaded holes.
Preferably, two mounting holes on the outer side in the mounting hole on the bottom surface are threaded holes; two mounting holes on the inner side of the frame mounting hole are threaded holes. During the assembly of industry assembly line, the crossbeam passes through the screw hole in bottom surface mounting hole, the frame mounting hole earlier and accurate installation location of solebar, crossbeam connecting plate, realizes the pre-assembly of crossbeam in the frame assembly, and need not to demolish in the installation procedure of balanced axle and casting crossbeam.
Compared with the prior art, the invention has the beneficial effects that:
the invention is made by casting, adjusts the section shape at a proper position, reasonably optimizes the wall thickness, has smooth surface, avoids stress concentration, improves the reliability and the light weight degree of the cast beam, is connected with the frame assembly and the balance shaft support through the top surface, the bottom surface and the side surface, has higher bending and torsion resistance strength compared with the cast beam in the traditional side surface connection mode, adopts the design of variable section and unequal wall thickness for the special-shaped tubular part at the middle part, has no any lap joint boss and recess, and has more uniform stress.
The bending and twisting resistance of the beam is obviously improved compared with the cast beam with the I-shaped section. The design of the mounting holes can effectively ensure the positioning of the beam, the frame, the beam connecting plate and the balance shaft support, and prevent the positioning deflection of the axle caused by the mounting deflection of the cast beam.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic bottom view of the embodiment of the present invention.
FIG. 4 is a schematic side view of the present invention.
Fig. 5 is a schematic structural view of the present invention mounted on the chassis of an automobile.
In the figure: 1. a middle section special-shaped tube; 2. an upper connecting portion; 3. a top surface mounting hole; 4. a lower connecting portion; 5. a bottom surface mounting hole; 6. a thrust rod connecting portion; 7. a thrust rod mounting hole; 8. a frame connecting portion; 9. a frame mounting hole; 10. a transition section; 11. a top surface gap; 12. a side gap; 13. a bottom surface notch; 14. a frame rail; 15. an upper beam connecting plate; 16. a lower beam connecting plate; 17. a V-shaped thrust rod; 18. balance shaft support.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 5, the plate spring suspension special-shaped tubular cast beam for heavy-duty car comprises a middle special-shaped pipe 1, wherein two ends of the middle special-shaped pipe 1 are respectively provided with an upper connecting part 2, the upper end surface of the upper connecting part 2 is provided with a plurality of top surface mounting holes 3, the lower end of the upper connecting part 2 is provided with a lower connecting part 4, the edge of the lower connecting part 4 protrudes out of the bottom surface of the upper connecting part 2, the lower connecting part 4 is provided with a plurality of bottom surface mounting holes 5, the outer side surface of the lower connecting part 4 is provided with a frame connecting part 8, the frame connecting part 8 is provided with a plurality of frame mounting holes 9, a transition part 10 is arranged between the upper connecting part 2 and the frame connecting part 8, the position where the upper connecting part 2 is connected with the middle special-shaped pipe 1 and the position where the frame connecting part 8 is connected with the transition part 10 are both provided with a thrust rod connecting part 6, and the thrust rod mounting hole 7 is arranged on the thrust rod connecting part 6, the beam body is of a hollow thin-wall structure, the beam body is formed by integral casting, the beam is of a bilateral symmetry structure in the vehicle running direction, and the beam is of a front-back symmetry structure in the direction perpendicular to the vehicle running direction.
The positions of the beam upper middle special-shaped pipe 1, the upper connecting part 2, the lower connecting part 4, the thrust rod connecting part 6, the frame connecting part 8 and the transition part 10 which are connected with each other are all arc transition.
The top surface mounting hole 3 and the thrust rod mounting hole 7 are threaded holes.
Two mounting holes on the outer side in the bottom surface mounting hole 5 are threaded holes, and two mounting holes on the inner side in the frame mounting hole 9 are threaded holes; the other mounting holes in the bottom mounting hole 5 and the frame mounting hole 9 are unthreaded holes or threaded holes.
The upper connecting part 2 and the lower connecting part 4 are arranged between an upper cross beam connecting plate 15 and a lower cross beam connecting plate 16 on the inner side of the frame longitudinal beam 14, and the thrust rod connecting part 6 is used for installing a V-shaped thrust rod 17.
The lateral surfaces of the cross beam are connected with the frame longitudinal beam 14 and the balance shaft support 18, and the top surface of the cross beam is connected with the upper cross beam connecting plate 15. The bottom surface of the crossbeam is connected with a lower crossbeam connecting plate 16, and the front end surface and the rear end surface of the crossbeam are connected with a V-shaped thrust rod 17.
Example two:
on the basis of the first embodiment, the upper connecting portion 2 is provided with the top surface notch 11, the frame connecting portion 8 is provided with the side surface notch 12, the lower connecting portion 4 is provided with the bottom surface notch 13, and the top surface notch 11, the side surface notch 12 and the bottom surface notch 13 are all communicated with the cavity in the beam body.
The working principle is as follows:
the invention is made by casting, adjusts the section shape at a proper position, reasonably optimizes the wall thickness, has smooth surface, avoids stress concentration, improves the reliability and the light weight degree of the cast beam, is connected with the frame assembly and the balance shaft support through the top surface, the bottom surface and the side surface, has higher bending and torsion resistance strength compared with the cast beam in the traditional side surface connection mode, adopts the design of variable section and unequal wall thickness for the special-shaped tubular part at the middle part, has no any lap joint boss and recess, and has more uniform stress.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a leaf spring suspension abnormal shape tubular casting crossbeam for heavy-duty car which characterized in that: the cross beam comprises a cross beam body, the cross beam body comprises a middle special-shaped pipe (1), two ends of the middle special-shaped pipe (1) are respectively provided with an upper connecting part (2), the upper end face of the upper connecting part (2) is provided with a plurality of top surface mounting holes (3), the lower end of the upper connecting part (2) is provided with a lower connecting part (4), the lower connecting part (4) is provided with a plurality of bottom surface mounting holes (5), the outer side face of the lower connecting part (4) is provided with a frame connecting part (8), the frame connecting part (8) is provided with a plurality of frame mounting holes (9), a transition part (10) is arranged between the upper connecting part (2) and the frame connecting part (8), the position where the upper connecting part (2) is connected with the middle special-shaped pipe (1) and the position where the frame connecting part (8) is connected with the transition part (10) are both provided with a thrust rod connecting part (6), and the thrust rod mounting hole (7) is arranged on the thrust rod connecting part (6), the beam body is of a hollow thin-wall structure.
2. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: the crossbeam body is through integral type casting shaping, and the crossbeam body is bilateral symmetry structure in the direction that the vehicle travel, and the crossbeam body is symmetrical structure around perpendicular to vehicle direction of travel.
3. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: the positions of the middle special-shaped pipe (1), the upper connecting part (2), the lower connecting part (4), the thrust rod connecting part (6), the frame connecting part (8) and the transition part (10) on the beam body which are connected with each other are all arc transition.
4. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: the edge of the lower connecting part (4) is protruded out of the bottom surface of the upper connecting part (2).
5. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: the upper connecting portion (2) is provided with a top surface gap (11), the frame connecting portion (8) is provided with a side surface gap (12), and the lower connecting portion (4) is provided with a bottom surface gap (13).
6. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 5, wherein: the top surface gap (11), the side surface gap (12) and the bottom surface gap (13) are communicated with a cavity in the beam body.
7. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: the top surface mounting hole (3) and the thrust rod mounting hole (7) are threaded holes.
8. The profiled tubular cast cross beam for a leaf spring suspension for a heavy duty vehicle of claim 1, wherein: two mounting holes on the outer side in the bottom surface mounting hole (5) are threaded holes, and two mounting holes on the inner side in the frame mounting hole (9) are threaded holes; other mounting holes in the bottom surface mounting hole (5) and the frame mounting hole (9) are unthreaded holes or threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496774.4A CN114104110A (en) | 2021-12-08 | 2021-12-08 | Special-shaped tubular casting beam for plate spring suspension for heavy-duty car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496774.4A CN114104110A (en) | 2021-12-08 | 2021-12-08 | Special-shaped tubular casting beam for plate spring suspension for heavy-duty car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114104110A true CN114104110A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496774.4A Pending CN114104110A (en) | 2021-12-08 | 2021-12-08 | Special-shaped tubular casting beam for plate spring suspension for heavy-duty car |
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| Country | Link |
|---|---|
| CN (1) | CN114104110A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080103A1 (en) * | 2004-02-19 | 2005-09-01 | Scania Cv Ab (Publ) | Vechicle chassis |
| US20080315631A1 (en) * | 2004-02-17 | 2008-12-25 | Hiruta-Kogyo Co., Ltd. | Chassis Frame and Method of Manufacturing Chassis Frame |
| CN205131385U (en) * | 2015-11-30 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Car and crossbeam structure thereof |
| CN206125165U (en) * | 2016-07-18 | 2017-04-26 | 陕西汽车实业有限公司 | Variable cross section frame |
| CN208102110U (en) * | 2018-04-13 | 2018-11-16 | 广州汽车集团股份有限公司 | Crossbeam assembly and vehicle frame |
| CN112721564A (en) * | 2021-02-04 | 2021-04-30 | 中国重汽集团济南动力有限公司 | Light-weight balance shaft suspension |
| CN213619962U (en) * | 2020-11-25 | 2021-07-06 | 山东安博机械科技股份有限公司 | V-shaped thrust rod multifunctional rectangular pipe casting crossbeam |
| CN213735181U (en) * | 2020-11-25 | 2021-07-20 | 青岛博泰汽车零部件有限责任公司 | Integrally cast hollow structure commercial vehicle crossbeam |
| CN213768715U (en) * | 2020-10-21 | 2021-07-23 | 南京依维柯汽车有限公司 | Frame structure for light non-bearing type automobile |
-
2021
- 2021-12-08 CN CN202111496774.4A patent/CN114104110A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080315631A1 (en) * | 2004-02-17 | 2008-12-25 | Hiruta-Kogyo Co., Ltd. | Chassis Frame and Method of Manufacturing Chassis Frame |
| WO2005080103A1 (en) * | 2004-02-19 | 2005-09-01 | Scania Cv Ab (Publ) | Vechicle chassis |
| CN205131385U (en) * | 2015-11-30 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Car and crossbeam structure thereof |
| CN206125165U (en) * | 2016-07-18 | 2017-04-26 | 陕西汽车实业有限公司 | Variable cross section frame |
| CN208102110U (en) * | 2018-04-13 | 2018-11-16 | 广州汽车集团股份有限公司 | Crossbeam assembly and vehicle frame |
| CN213768715U (en) * | 2020-10-21 | 2021-07-23 | 南京依维柯汽车有限公司 | Frame structure for light non-bearing type automobile |
| CN213619962U (en) * | 2020-11-25 | 2021-07-06 | 山东安博机械科技股份有限公司 | V-shaped thrust rod multifunctional rectangular pipe casting crossbeam |
| CN213735181U (en) * | 2020-11-25 | 2021-07-20 | 青岛博泰汽车零部件有限责任公司 | Integrally cast hollow structure commercial vehicle crossbeam |
| CN112721564A (en) * | 2021-02-04 | 2021-04-30 | 中国重汽集团济南动力有限公司 | Light-weight balance shaft suspension |
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Application publication date: 20220301 |
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| RJ01 | Rejection of invention patent application after publication |