CN111114274A - Connection structure for engine spandrel girder - Google Patents
Connection structure for engine spandrel girder Download PDFInfo
- Publication number
- CN111114274A CN111114274A CN202010019249.2A CN202010019249A CN111114274A CN 111114274 A CN111114274 A CN 111114274A CN 202010019249 A CN202010019249 A CN 202010019249A CN 111114274 A CN111114274 A CN 111114274A
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- connecting part
- cavity
- bearing beam
- engine bearing
- connection portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to an engine bearing beam and discloses a connecting structure for the engine bearing beam, which comprises a first connecting part, wherein the first connecting part is provided with a second connecting part fixedly connected with a threshold boundary beam; the part between the first connecting part and the third connecting part and the covering shell are provided with fabrication holes; not through the assembly part, direct and automobile body skeleton transmission impact force has improved the transmission efficiency of impact force, and the stiffening groove forms the swell with covering the casing, and the swell lets form wholly between first connecting portion, second connecting portion and the third connecting portion to form the biography power passageway between the three, strengthened self bear with the performance of transmission impact force.
Description
Technical Field
The invention relates to an engine bearing beam, in particular to a connecting structure for the engine bearing beam.
Background
The engine bearing beam is positioned at the bottom of the engine and used for bearing the engine and connecting with the chassis to participate in the strength of the whole vehicle body. The two ends of the existing engine bearing beam are fixedly connected with an assembly part below a vehicle A column through a plate-shaped connecting piece, and the assembly part is assembled on a vehicle body framework through bolts or rivets.
Among the prior art, the engine spandrel girder can refer to the chinese patent publication that patent publication number is CN203438833U and disclose an automobile engine spandrel girder, including left side subassembly, middle cross beam, right side subassembly, left side subassembly, middle cross beam and right side subassembly are integrated, all opened waist shape hole on left side subassembly and the right side subassembly, be equipped with a plurality of enhancement stands in the middle cross beam, its front end is equipped with the outside board of bending, the upper end of middle cross beam is connected to the one end of strengthening the stand, the department of bending of the board of bending is connected to the other end.
However, when the existing engine load-bearing beam is used, if the front part of a vehicle collides, after the collision, the plate-shaped connecting pieces connected with the two sides of the automobile weighing beam can transmit the impact force to the connected assembly parts, and the assembly parts are assembled on the vehicle body framework through bolts or rivets, so that the transmitted impact force is limited, and a connecting piece structure is needed to enhance the performance of bearing and transmitting the impact force.
Disclosure of Invention
In view of the defects in the prior art, one of the purposes of the invention is to provide a connecting structure for an engine bearing beam, which enhances the performance of bearing and transmitting impact force of the connecting structure.
In order to achieve the purpose, the invention provides the following technical scheme:
a connecting structure for an engine bearing beam comprises a first connecting part fixedly connected with the engine bearing beam, wherein a second connecting part fixedly connected with a threshold boundary beam is arranged at one end, away from the engine bearing beam, of the first connecting part, a third connecting part fixedly connected with an A column of a vehicle body is fixedly connected beside the first connecting part, an arc-shaped reinforcing groove is formed in the third connecting part and between the third connecting part and the second connecting part, an arc-shaped covering shell is fixedly connected with the reinforcing groove, the side edge of the covering shell is fixedly connected with the periphery of the reinforcing groove, and the covering shell is fixedly connected with the first connecting part;
the part between the first connecting part and the third connecting part and the covering shell are provided with fabrication holes.
Through adopting above-mentioned technical scheme, when the automobile body front portion received the impact force, first connecting portion atress at first, then transmit the impact force for the threshold boundary beam through the second connecting portion, and transmit for automobile body A post through the third connecting portion, not through the fitting, direct and automobile body skeleton transmission impact force, the transmission efficiency of impact force has been improved, the stiffening groove forms the swell with covering the casing, the swell lets first connecting portion, form wholly between second connecting portion and the third connecting portion, and form the biography power passageway between the three, the arc protrusion structure of swell can strengthen its atress ability, it is not fragile, improve its biography power upper limit, the performance that self bore and transmit the impact force has been strengthened.
The present invention in a preferred example may be further configured to: and a first process through hole is formed between the process hole between the first connecting part and the third connecting part and the vehicle body framework.
By adopting the technical scheme, the process hole is connected with the structure on the vehicle body framework through the first process through hole, so that the shape of the bulge is further stabilized, the stability of the bulge shape is improved from the outside, and the performance of bearing and transmitting impact force by the process hole is further enhanced.
The present invention in a preferred example may be further configured to: and a second process through hole is formed in the inner wall of the reinforcing groove, and one end of the second process through hole is fixedly connected in the process hole of the covering shell.
By adopting the technical scheme, the reinforcing groove and the covering shell are pulled by the second process through hole in the bulge, so that the stability of the shape of the bulge is improved from the inside, and the performance of bearing and transmitting impact force by the bulge is further enhanced.
The present invention in a preferred example may be further configured to: the reinforcing groove is far away from the lateral margin of first connecting portion has been seted up first joint groove, cover the casing and keep away from the side joint of first connecting portion is in the first joint groove, and the butt the inner wall in first joint groove.
Through adopting above-mentioned technical scheme, first joint groove can give automobile body skeleton with the even giving off of the impact force that receives, promotes the transmission efficiency of impact force.
The present invention in a preferred example may be further configured to: first connecting portion with be equipped with second joint groove between the third connecting portion, the lateral wall in second joint groove perpendicular to automobile body skeleton follows the skeleton of engine bearing beam to the anterior extension of automobile body, the edge that covers the casing extends to in the second joint inslot.
Through adopting above-mentioned technical scheme, the position that can let the swell can not take place to slide in the cover casing edge of second joint groove and temples portion thereof, has still strengthened the structural strength at the position of being connected between first connecting portion and the third connecting portion, and can reduce the influence that the impact force that first connecting portion transmission was come brought minimum, the effect of maximize transmission impact force.
The present invention in a preferred example may be further configured to: a sealed first cavity is formed among the covering shell, the first connecting part and the third connecting part, and the first cavity extends from the first connecting part to the third connecting part;
a sealed second cavity is formed between the covering shell and the first connecting part and between the covering shell and the second connecting part, and the second cavity extends from the first connecting part to the second connecting part;
the first cavity with all be equipped with non-Newtonian fluid in the second cavity, non-Newtonian fluid is not full of simultaneously first cavity with the second cavity.
Through adopting above-mentioned technical scheme, when there is not external force to strike, non-Newtonian fluid can freely flow in first cavity and second cavity, when receiving external force to strike, non-Newtonian fluid can keep the structural integrity of swell, and non-Newtonian fluid self receives the impact force back hardness can sharply rise simultaneously to self also can play the effect of transmission impact force, has strengthened the structural integrity of swell promptly, can improve the efficiency of whole transmission impact force again.
The present invention in a preferred example may be further configured to: and a blocking plate for blocking the circulation of non-Newtonian fluid is arranged between the first cavity and the second cavity, and the blocking plate does not block the first cavity and the second cavity which are communicated.
By adopting the technical scheme, the barrier plate can limit the intensity of the flow of the non-Newtonian fluid when the hardness of the non-Newtonian fluid is not increased, the integrity of the whole non-Newtonian fluid is kept, and the stability of the relative position between the non-Newtonian fluid and the bump can be enhanced after the hardness of the non-Newtonian fluid is increased sharply.
The present invention in a preferred example may be further configured to: the first cavity is communicated with one end, close to the second cavity, of the second cavity, and the aperture of the communicated part is smaller than the minimum inner diameter in the first cavity or the minimum aperture in the second cavity.
By adopting the technical scheme, the communicated part with the reduced inner diameter is used for replacing the blocking plate, so that the effect of blocking non-Newtonian fluid is improved.
In summary, the invention includes at least one of the following beneficial technical effects:
(1) the bulge is formed by arranging the first connecting part, the second connecting part and the third connecting part and forming a bulge with the covering shell through the reinforcing groove, the first connecting part is stressed firstly, then the impact force is transmitted to the doorsill edge beam through the second connecting part and is transmitted to the A column of the vehicle body through the third connecting part, the bulge enables the first connecting part, the second connecting part and the third connecting part to form a whole body, a force transmission channel is formed among the first connecting part, the second connecting part and the third connecting part, the stress capacity of the bulge can be enhanced by the arc-shaped protruding structure of the bulge, the bulge is not easy to damage, the upper limit of force transmission of the bulge is;
(2) the kinetic energy of the impact is dispersed to the threshold and the central passage, and the path of the impact to the threshold is divided into two paths, so that the force concentrated at the bearing beam of the engine is dispersed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a first engaging groove and a second engaging groove of the present invention;
FIG. 3 is an overall schematic view of the present invention showing the barrier plate;
fig. 4 is a schematic structural view showing a communicating portion with a reduced inner diameter according to the present invention.
Reference numerals: 1. an engine spandrel girder; 2. a first connection portion; 3. a second connecting portion; 4. a threshold edge beam; 5. a third connecting portion; 6. a vehicle body A column; 7. a reinforcing groove; 8. a cover housing; 9. bulging; 10. a fabrication hole; 11. a first process via; 12. a second process via; 13. a first clamping groove; 14. a second clamping groove; 15. a first cavity; 16. a second cavity; 17. a barrier plate.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Referring to fig. 1, the connecting structure for the engine bearing beam 1 disclosed by the invention comprises a first connecting part 2 connected with the engine bearing beam 1 in a spot welding manner, wherein one end, far away from the engine bearing beam 1, of the first connecting part 2 is integrally provided with a second connecting part 3, the second connecting part 3 is triangular, the tip end, far away from the first connecting part 2, of the second connecting part is in an acute angle, and the lower edge of the tip end is connected with a threshold boundary beam 4 in a spot welding manner. A third connecting part 5 integrally extends downwards below the first connecting part 2, and the third connecting part 5 is fixedly connected with an A column 6 of the vehicle body through spot welding. Arc-shaped reinforcing grooves 7 are formed in the third connecting portion 5 and between the third connecting portion 5 and the second connecting portion 3, the reinforcing grooves 7 are recessed towards the interior of the vehicle body, arc-shaped covering shells 8 are spot-welded to the reinforcing grooves 7, bulges 9 are formed by spot-welding the side edges of the covering shells 8 and the peripheries of the reinforcing grooves 7 along the circumferential direction of the covering shells 8, and the bulges 9 can be engine compartment longitudinal beam threshold connecting beam cover plates. One end of the cover case 8 is fixed to the first connection portion 2 by spot welding, and the other end of the cover case 8 is fixed to the third connection portion 5 by spot welding.
The part between the first connecting part 2 and the third connecting part 5 and the covering shell 8 are provided with a fabrication hole 10, the fabrication hole 10 can be used for liquid leakage or positioning installation, and the direction of the fabrication hole 10 is horizontal. A horizontal first process through hole 11 is connected between the process hole 10 between the first connecting part 2 and the third connecting part 5 and the vehicle body framework, and the end part of the first process through hole 11 is welded on the inner edge of the process hole 10 in a spot mode. A horizontal second process through hole 12 is welded on the inner wall of the reinforcing groove 7, and one end of the second process through hole 12 is welded in the process hole 10 of the covering shell 8. The fabrication holes 10 are connected with the structure on the vehicle body framework through the first fabrication through holes 11, so that the stability of the shape of the bulge 9 from the outside is improved, and the second fabrication through holes 12 pull the reinforcing grooves 7 and the covering shell 8 in the bulge 9, so that the stability of the shape of the bulge 9 from the inside is improved, and the performance of bearing and transmitting impact force of the bulge is enhanced.
As shown in fig. 1 and 2, a first clamping groove 13 is formed in a side edge of the reinforcing groove 7, which is far away from the first connecting portion 2, an opening of the first clamping groove 13 faces away from the first connecting portion 2, a side edge of the covering shell 8, which is far away from the first connecting portion 2, is welded in the first clamping groove 13, and the engine compartment longitudinal beam threshold connecting beam cover plate and the bulge 9 are also rigidly connected with the reinforcing groove 7. Be equipped with between first connecting portion 2 and the third connecting portion 5 along keeping away from first connecting portion 2 the second joint groove 14 of direction slant decurrent, the skeleton that the lateral wall perpendicular to automobile body skeleton of second joint groove 14 extends from engine spandrel girder 1 to automobile body front portion, and the edge that covers casing 8 extends to in second joint groove 14, forms the welding limit. First joint groove 13 can be with the even giving of impact force that receives give automobile body skeleton, promotes the transmission efficiency of impact force. The 8 edges of the covering shell body of the second clamping groove 14 and the temporal part thereof can prevent the position of the bulge 9 from slipping, the structural strength of the connecting part between the first connecting part 2 and the third connecting part 5 is enhanced, the influence of the impact force transmitted by the first connecting part 2 is reduced to the minimum, and the impact force is transmitted to the maximum.
As shown in fig. 3, a first cavity 15 is welded between the cover case 8 and the first connection portion 2 and the third connection portion 5, and the first cavity 15 extends from the first connection portion 2 to the third connection portion 5, i.e. downward in a direction away from the first connection portion 2. A sealed second cavity 16 is welded between the cover housing 8 and the first connecting portion 2 and the second connecting portion 3, and the second cavity 16 extends from the first connecting portion 2 to the second connecting portion 3, i.e. slantingly downward. The first cavity 15 communicates with the second cavity 16 at a point near the bottom of the a-pillar 6 of the vehicle body. The first cavity 15 and the second cavity 16 are used for increasing structural strength. And the interior of the first cavity 15 and the second cavity 16 is filled with non-Newtonian fluid, the non-Newtonian fluid can adopt ceramic pulp, paper pulp and the like, and the non-Newtonian fluid does not fill the first cavity 15 and the second cavity 16 simultaneously. In the absence of an external force impact, the non-Newtonian fluid is free to flow within the first chamber 15 and the second chamber 16.
The blocking plate 17 is welded at the communication part between the first cavity 15 and the second cavity 16, the blocking plate 17 is used for reducing the communication channel to increase the resistance of the free circulation of the non-Newtonian fluid, and the blocking plate 17 does not block the first cavity 15 and the second cavity 16 which are communicated. In other cases, as shown in fig. 4, the first cavity 15 communicates with the second cavity 16 at the end near to each other, and the aperture of the communication portion is smaller than the minimum inner diameter of the first cavity 15 or the minimum aperture of the second cavity 16. The communicating part with the reduced inner diameter is used for replacing the blocking plate 17, so that the effect of blocking the non-Newtonian fluid is improved. When the vehicle body is not subjected to impact force, the blocking plate 17 prevents the non-Newtonian fluid with the hardness not increased from violently flowing in the first cavity 15 and the second cavity 16, and the harder the flow, the higher the hardness of the non-Newtonian fluid is, so that the whole fluidity of the non-Newtonian fluid is favorably maintained.
The implementation principle of the embodiment is as follows: when the front part of the vehicle body receives impact force, the first connecting part 2 is stressed firstly, then the impact force is transmitted to the doorsill edge beam 4 through the second connecting part 3, the impact force is transmitted to the vehicle body A column 6 through the third connecting part 5, the impact force is directly transmitted to the vehicle body framework without assembling parts, the transmission efficiency of the impact force is improved, the reinforcing groove 7 and the covering shell 8 form a bulge 9, the bulge 9 enables the first connecting part 2, the second connecting part 3 and the third connecting part 5 to form a whole, and a force transmission channel is formed among the first connecting part, the second connecting part and the third connecting part. When the non-Newtonian fluid is impacted by external force, the hardness of the non-Newtonian fluid can be increased sharply, the structural strength and the integrity of the bulge 9 can be kept, and the efficiency of integrally transferring the impact force can be improved. The blocking plate 17 can now increase the stability of the position between the non-newtonian fluid and the bump 9. The arc-shaped protruding structure of the bulge 9 can enhance the stress capacity, is not easy to damage, and enhances the performance of bearing and transmitting impact force.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A connecting structure for an engine bearing beam comprises a first connecting part (2) fixedly connected with the engine bearing beam (1), it is characterized in that one end of the first connecting part (2) far away from the bearing beam (1) of the engine is provided with a second connecting part (3) fixedly connected with a threshold boundary beam (4), a third connecting part (5) fixedly connected with an A column (6) of the vehicle body is fixedly connected beside the first connecting part (2), arc-shaped reinforcing grooves (7) are arranged on the third connecting part (5) and between the third connecting part (5) and the second connecting part (3), the reinforcing groove (7) is fixedly connected with an arc-shaped covering shell (8), the side edge of the covering shell (8) is fixedly connected with the periphery of the reinforcing groove (7), the covering shell (8) is fixedly connected with the first connecting part (2);
the part between the first connecting part (2) and the third connecting part (5) and the covering shell (8) are provided with fabrication holes (10).
2. The connection structure for the engine bearing beam according to claim 1, characterized in that a first process via hole (11) is provided between the process hole (10) between the first connection portion (2) and the third connection portion (5) and the vehicle body frame.
3. The connection structure for the engine bearing beam according to claim 1, characterized in that a second through-hole (12) is provided in the inner wall of the reinforcement groove (7), and one end of the second through-hole (12) is provided in the through-hole (10) of the cover case (8).
4. The connection structure for the engine bearing beam according to claim 1, wherein a first clamping groove (13) is formed in a side edge, away from the first connection portion (2), of the reinforcing groove (7), and a side edge, away from the first connection portion (2), of the cover shell (8) is clamped in the first clamping groove (13) and abuts against an inner wall of the first clamping groove (13).
5. The connection structure for the engine bearing beam according to claim 1, characterized in that a second snap groove (14) is provided between the first connection portion (2) and the third connection portion (5), a side wall of the second snap groove (14) is perpendicular to a frame of the vehicle body frame extending from the engine bearing beam (1) to a front portion of the vehicle body, and an edge of the cover case (8) extends into the second snap groove (14).
6. The connection structure for an engine bearing beam according to claim 1, characterized in that a sealed first cavity (15) is formed between the cover case (8) and the first connection portion (2) and the third connection portion (5), the first cavity (15) extending from the first connection portion (2) to the third connection portion (5);
a sealed second cavity (16) is formed between the covering shell (8) and the first connecting part (2) and the second connecting part (3), and the second cavity (16) extends from the first connecting part (2) to the second connecting part (3);
first cavity (15) with all be equipped with non-Newtonian fluid in the second cavity (16), non-Newtonian fluid is not full of simultaneously first cavity (15) with second cavity (16).
7. The connection structure for the engine bearing beam according to claim 6, characterized in that a blocking plate (17) blocking the flow of the non-Newtonian fluid is provided between the first cavity (15) and the second cavity (16), and the blocking plate (17) does not block the first cavity (15) and the second cavity (16) which are communicated with each other.
8. The connection structure for an engine bearing beam according to claim 6, wherein the first cavity (15) and the second cavity (16) communicate with each other at their ends close to each other, and the aperture of the communication portion is smaller than the smallest inner diameter in the first cavity (15) or the smallest aperture in the second cavity (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019249.2A CN111114274B (en) | 2020-01-08 | 2020-01-08 | Connection structure for engine spandrel girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019249.2A CN111114274B (en) | 2020-01-08 | 2020-01-08 | Connection structure for engine spandrel girder |
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| Publication Number | Publication Date |
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| CN111114274A true CN111114274A (en) | 2020-05-08 |
| CN111114274B CN111114274B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010019249.2A Active CN111114274B (en) | 2020-01-08 | 2020-01-08 | Connection structure for engine spandrel girder |
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| US5228741A (en) * | 1990-09-20 | 1993-07-20 | Mazda Motor Corporation | Vehicle rear body structure |
| CN203306103U (en) * | 2013-05-30 | 2013-11-27 | 长城汽车股份有限公司 | Multi-channel force transferring mechanism, and forward engine room and vehicle comprising same |
| CN205022683U (en) * | 2015-08-24 | 2016-02-10 | 浙江吉利汽车研究院有限公司 | Connection structure of automobile longitudinal beam root and preceding bounding wall |
| JP2018052134A (en) * | 2016-09-26 | 2018-04-05 | 株式会社Ｓｕｂａｒｕ | Interior material |
| CN208069810U (en) * | 2018-04-09 | 2018-11-09 | 吉利汽车研究院（宁波）有限公司 | Body of a motor car and automobile |
| CN208165109U (en) * | 2018-04-28 | 2018-11-30 | 长城汽车股份有限公司 | Vehicle foreside force transferring structure and automobile |
| CN209008671U (en) * | 2018-10-26 | 2019-06-21 | 众泰新能源汽车有限公司 | New energy Chinese herbaceous peony stringer |
| CN209757261U (en) * | 2019-02-28 | 2019-12-10 | 重庆长安汽车股份有限公司 | Connecting structure of front longitudinal beam of aluminum alloy vehicle body |
| CN209776565U (en) * | 2018-12-30 | 2019-12-13 | 浙江众泰汽车制造有限公司 | Automobile body structure |
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2020
- 2020-01-08 CN CN202010019249.2A patent/CN111114274B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228741A (en) * | 1990-09-20 | 1993-07-20 | Mazda Motor Corporation | Vehicle rear body structure |
| CN203306103U (en) * | 2013-05-30 | 2013-11-27 | 长城汽车股份有限公司 | Multi-channel force transferring mechanism, and forward engine room and vehicle comprising same |
| CN205022683U (en) * | 2015-08-24 | 2016-02-10 | 浙江吉利汽车研究院有限公司 | Connection structure of automobile longitudinal beam root and preceding bounding wall |
| JP2018052134A (en) * | 2016-09-26 | 2018-04-05 | 株式会社Ｓｕｂａｒｕ | Interior material |
| CN208069810U (en) * | 2018-04-09 | 2018-11-09 | 吉利汽车研究院（宁波）有限公司 | Body of a motor car and automobile |
| CN208165109U (en) * | 2018-04-28 | 2018-11-30 | 长城汽车股份有限公司 | Vehicle foreside force transferring structure and automobile |
| CN209008671U (en) * | 2018-10-26 | 2019-06-21 | 众泰新能源汽车有限公司 | New energy Chinese herbaceous peony stringer |
| CN209776565U (en) * | 2018-12-30 | 2019-12-13 | 浙江众泰汽车制造有限公司 | Automobile body structure |
| CN209757261U (en) * | 2019-02-28 | 2019-12-10 | 重庆长安汽车股份有限公司 | Connecting structure of front longitudinal beam of aluminum alloy vehicle body |
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| CN111114274B (en) | 2021-03-26 |
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