CN108688727A - Subframe and vehicle - Google Patents
Subframe and vehicle Download PDFInfo
- Publication number
- CN108688727A CN108688727A CN201810848304.1A CN201810848304A CN108688727A CN 108688727 A CN108688727 A CN 108688727A CN 201810848304 A CN201810848304 A CN 201810848304A CN 108688727 A CN108688727 A CN 108688727A
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- Prior art keywords
- reinforcing rib
- subframe
- mounting portion
- reinforcing
- longeron
- Prior art date
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 212
- 238000010276 construction Methods 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 25
- 239000003381 stabilizer Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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
Abstract
The invention discloses a kind of subframe and vehicle, subframe is cast aluminum construction, and includes:Front beam and rear cross beam, front beam and rear cross beam are spaced apart setting along the longitudinal direction;Longeron, longeron include left longeron and right vertical beam, and left longeron and right vertical beam are spaced apart setting in left-right direction, and left longeron is connected with right vertical beam by front beam, rear cross beam;Rear-suspending mounting portion, rear-suspending mounting portion is connected with front beam, and the junction of front beam and longeron between rear-suspending mounting portion be equipped with the first reinforcing rib, rear cross beam to the junction of longeron between rear-suspending mounting portion be equipped with the second reinforcing rib, rear cross beam between rear-suspending mounting portion be equipped with third reinforcing rib, second reinforcing rib is connected with the first adjacent reinforcing rib at rear-suspending mounting portion, and be formed as V-shaped, second reinforcing rib is connected with adjacent third reinforcing rib at rear-suspending mounting portion, and is formed as V-shaped.The subframe of the present invention has higher structural strength and rigidity.
Description
Technical field
The present invention relates to technical field of vehicle manufacture, more particularly, to a kind of subframe and with the vehicle of the subframe.
Background technology
With the development of science and technology, energy problem is increasingly notable, people are higher and higher to the performance requirements of vehicle, especially
It is for electric vehicle, one of the problem of course continuation mileage of electric vehicle is presently the most concern.Wherein, it is raising electric vehicle
Comfort and maneuverability, increase auxiliary frame structure on electric vehicle.But the total quality of subframe is larger, and subframe
Structural strength reduces, while increasing materials'use amount and the weight of vehicle, significantly impacts the dynamic property of electric vehicle, reduces
The course continuation mileage of electric vehicle, there are improved space.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose subframe, the subframe overall structure rigidity is larger, lighter weight.
Subframe according to the ... of the embodiment of the present invention, the subframe is cast aluminum construction, and includes:Front beam and rear cross beam,
The front beam and the rear cross beam are spaced apart setting along the longitudinal direction;Longeron, the longeron include left longeron and right vertical beam, institute
It states left longeron and the right vertical beam and is spaced apart setting in left-right direction, and the left longeron and the right vertical beam pass through the preceding cross
Beam, the rear cross beam are connected;Rear-suspending mounting portion, the rear-suspending mounting portion is connected with the front beam, and the front beam
With the junction of the longeron to being equipped with the first reinforcing rib, the rear cross beam to the longeron between the rear-suspending mounting portion
Junction is set to the second reinforcing rib, the rear cross beam is equipped between the rear-suspending mounting portion between the rear-suspending mounting portion
There is third reinforcing rib, second reinforcing rib is suspended with adjacent first reinforcing rib at mounting portion in the rear to be connected, and
Be formed as V-shaped, second reinforcing rib is suspended with the adjacent third reinforcing rib at mounting portion in the rear to be connected, and shape
As V-shaped, second reinforcing rib is between first reinforcing rib and the third reinforcing rib.
Subframe according to the ... of the embodiment of the present invention, by being set between rear-suspending mounting portion and other connectors of subframe
First reinforcing rib, the second reinforcing rib, third reinforcing rib, it is ensured that rear-suspending has higher installation rigidity, reduces power assembly
The transmission of vibration, and the slotted hole structure between reinforcing rib can greatly reduce the total quality of subframe, can save body pair vehicle as a result,
Frame produces material requested and cost, realizes the light-weighted requirement of subframe.
Subframe according to an embodiment of the invention, between first reinforcing rib and second reinforcing rib, described
It is equipped with lightening hole between the third reinforcing rib between second reinforcing rib and the third reinforcing rib, adjacent.
Subframe according to an embodiment of the invention, first reinforcing rib are equipped with first close to one end of the longeron
Reinforcing prop, first reinforcing rib are equipped with the second reinforcing prop close to one end of the rear-suspending mounting portion.
Subframe according to an embodiment of the invention, first reinforcing prop and second reinforcing prop are hollow
Column.
Subframe according to an embodiment of the invention, second reinforcing rib is close to one end of the rear-suspending mounting portion
It is connected with second reinforcing prop, the third reinforcing rib includes three of laterally spaced apart setting, an in-between institute
It states third reinforcing rib to be connected between the rear-suspending mounting portion and the rear cross beam, other two described third reinforcing rib connection
Between second reinforcing prop and the rear cross beam.
Subframe according to an embodiment of the invention, the third reinforcing rib extends along the longitudinal direction, and the third
The height of reinforcing rib is gradually reduced from front to back.
Subframe according to an embodiment of the invention, first reinforcing rib, second reinforcing rib, the third add
The junction of strengthening tendons and the front beam, the rear cross beam, which is equipped with, reinforces boss.
Subframe according to an embodiment of the invention, the left longeron, the right vertical beam, the front beam, described
At least one of two reinforcing ribs are equipped with third reinforcing prop.
Subframe according to an embodiment of the invention, the front beam and the rear cross beam are arc, and it is described before
The middle part of crossbeam and the middle part of the rear cross beam are towards close to side indent each other.
The invention also provides a kind of vehicles.
Vehicle according to the ... of the embodiment of the present invention is provided with the subframe described in any of the above-described kind of embodiment.
Possessed advantage is identical compared with the existing technology for the vehicle and above-mentioned subframe, and details are not described herein.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein:
Fig. 1 is the structural schematic diagram of subframe according to the ... of the embodiment of the present invention;
Fig. 2 is the vertical view of subframe according to the ... of the embodiment of the present invention.
Reference numeral:
Subframe 100,
Front beam 1, rear cross beam 2, left longeron 3, right vertical beam 4, rear-suspending mounting portion 5,
First reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8, supporting rib stiffener 9, lightening hole 10, the first reinforcing prop
11, the second reinforcing prop 12, third reinforcing prop 13 reinforces boss 14, stabiliser bar installation position 15, installation point 16 before front swing arm, forward swing
Installation point 17 after arm, vertical support construction 18.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
Subframe 100 according to the ... of the embodiment of the present invention is described below with reference to Fig. 1-Fig. 2,100 total quality of subframe compared with
It is small, and structural strength and rigidity are larger, it can be under the premise of meeting lightweight requirements so that the vehicle with the subframe 100
Properties have larger improvement.
As Figure 1-Figure 2, subframe 100 according to the ... of the embodiment of the present invention, the generally cast aluminum construction of subframe 100, and
When subframe 100 carries out casting technique, subframe 100 can be used as to end face along Z-direction 2/3, be perfused up and down, by subframe
100 being molded as one cast aluminum constructions.It should be noted that aluminium has the properties such as the small, resistance to oxidation of density, cast aluminum construction as a result,
Subframe 100 have the advantages that durable, light weight, antirust, and overall structure is integrally formed, the structural strength of each position
It is higher with rigidity, be conducive to meet 100 light-weighted requirement of subframe.
It should be noted that longitudinal direction, that is, X described herein is to referring to the front-rear direction of vehicle;It is laterally Y-direction, refers to vehicle
Left and right directions;It is vertically Z-direction, refers to the upper and lower directions of vehicle.
As Figure 1-Figure 2, subframe 100 includes front beam 1, rear cross beam 2, longeron and rear-suspending mounting portion 5.
Front beam 1 and rear cross beam 2 are spaced apart setting along the longitudinal direction, and longeron includes left longeron 3 and right vertical beam 4, left longeron 3
Be spaced apart setting in left-right direction with right vertical beam 4, and left longeron 3 is connected with right vertical beam 4 by front beam 1, rear cross beam 2, i.e., before
The both ends of crossbeam 1 connect with left longeron 3 and right longitudinal phase respectively, and the both ends of rear cross beam 2 are connected with left longeron 3 and right vertical beam 4 respectively.
Wherein, the front end of left longeron 3 is connected with front beam 1, and the rear end of left longeron 3 is connected with rear cross beam 2, right vertical beam 4
Front end is connected with front beam 1, and the rear end of right vertical beam 4 is connected with rear cross beam 2, as a result, front beam 1, left longeron 3, rear cross beam 2 and the right side
Longeron 4 is in turn connected to form the agent structure of subframe 100, and then convenient for other components of connection vehicle, subframe 100 it is whole
Body is simple in structure, and front beam 1, left longeron 3, rear cross beam 2 and right vertical beam 4 are integrally formed, and has the very high rigidity of structure
And intensity, and then promote performance.
Rear-suspending mounting portion 5 plays certain support to the dynamical system of vehicle and makees for installing rear-suspending system
With so that the power of vehicle is transmitted with stable running environment.Rear-suspending mounting portion 5 is connected with front beam 1, such as Fig. 1 and Fig. 2
It is shown, rear-suspending mounting portion 5 be tubulose, the axis of rear-suspending mounting portion 5 vertically, and the preceding peripheral wall of rear-suspending mounting portion 5 with
Front beam 1 is to be fixedly connected, in this way, front beam 1 is connected with each other and mutually supports, rear-suspending mounting portion 5 with rear-suspending mounting portion 5
The active force being subject to can be transferred to entire subframe 100, so that rear-suspending system has stable back-up environment, be promoted whole
The performance of vehicle.
As depicted in figs. 1 and 2, the junction of front beam 1 and longeron between rear-suspending mounting portion 5 be equipped with the first reinforcing rib
6, i.e. the first reinforcing rib 6 is extended from rear-suspending mounting portion 5 to front beam 1 with the junction of longeron.First reinforcing rib 6 includes
Two, and one in two the first reinforcing ribs 6 be set to the junction of front beam 1 and left longeron 3 to rear-suspending mounting portion 5 it
Between, another is set to the junction of front beam 1 and right vertical beam 4 between rear-suspending mounting portion 5, before the first reinforcing rib 6 can be improved
Crossbeam 1 and the bonding strength of the junction of longeron can be used for a long time so that front beam 1 and the junction of longeron are not easy to break, and
First reinforcing rib 6 can play the role of rear-suspending mounting portion 5 connection support, and the active force that rear-suspending mounting portion 5 is received passes
Pass front beam 1, left longeron 3 and right vertical beam 4.
As depicted in figs. 1 and 2, rear cross beam 2 arrives between rear-suspending mounting portion 5 to the junction of longeron equipped with the second reinforcing rib
7, i.e. the second reinforcing rib 7 is extended from rear-suspending mounting portion 5 to rear cross beam 2 with the junction of longeron.Second reinforcing rib 7 includes
Two, one in two the second reinforcing ribs 7 junction for being set to rear cross beam 2 and left longeron 3 between rear-suspending mounting portion 5,
Another is set to the junction of rear cross beam 2 and right vertical beam 4 between rear-suspending mounting portion 5, and rear cross beam can be improved in the second reinforcing rib 7
2 can be used for a long time, and second with the bonding strength of the junction of longeron so that rear cross beam 2 and the junction of longeron are not easy to break
Reinforcing rib 7 can play the role of rear-suspending mounting portion 5 connection support, and the active force that rear-suspending mounting portion 5 is received is passed to
Rear cross beam 2, left longeron 3 and right vertical beam 4.In one embodiment, the height of the first reinforcing rib 6 and the second reinforcing rib 7 is
64mm。
Wherein, the second reinforcing rib 7 is connected with the first adjacent reinforcing rib 6 at rear-suspending mounting portion, and is formed as V-shaped
Structure, as second reinforcing rib 7 and the first reinforcing rib 6 in left side in Fig. 1 are formed as V-shaped structure, and the second reinforcing rib 7, first
Reinforcing rib 6 forms triangular structure with left longeron 3, it is to be understood that and triangular structure has good stability, the second reinforcing rib 7,
The excellent stability that first reinforcing rib 6 is connect with left longeron 3, and the planform on 100 right side of subframe is identical as left side.By
This, can greatly improve 100 integrally-built strength and stiffness of subframe, increase its stability.
As depicted in figs. 1 and 2, two the second reinforcing ribs 7 form connection at rear-suspending mounting portion 5, and two second add
The arrangement states of strengthening tendons 7 are formed as V-shaped structure, while two the second reinforcing ribs 7 form triangular structure with rear cross beam 2, this
Sample may make two the second reinforcing ribs 7 and the connection structure that rear cross beam 2 is formed to have fabulous stability, be unlikely to deform, be convenient for
It is used for a long time, 100 integrally-built strength and stiffness of subframe can be greatlyd improve as a result, increase its stability.
Rear cross beam 2 is equipped with third reinforcing rib 8 between arriving rear-suspending mounting portion 5, and rear-suspending mounting portion 5 is located at 1 He of front beam
Between rear cross beam 2, third reinforcing rib 8 extends longitudinally, i.e., along the longitudinal direction, third reinforcing rib 8 can as a result, for third reinforcing rib 8
The active force that rear-suspending mounting portion 5 is subject to is transferred to rear cross beam 2, in one embodiment, the height of third reinforcing rib 8 is
60mm。
As depicted in figs. 1 and 2, the first reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8 one end with rear-suspending pacify
Dress portion 5 is connected, and the first reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8 are circumferentially distributed along rear-suspending mounting portion 5.By
This, the active force that rear-suspending mounting portion 5 is subject to can be transferred to whole by the first reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8
A subframe 100 improves the integrally-built strong of subframe 100 to be effectively reduced the local stress of rear-suspending mounting portion 5
Degree and rigidity, ensure that the installation rigidity of rear-suspending system, be effectively reduced the transmission of power assembly vibration, and subframe 100
Overall simple, it is easy for installation, it is versatile, promoted vehicle performance, and the first reinforcing rib 6, the second reinforcing rib 7, third reinforce
The slotted hole structure hollowed out is formed in adjacent two in 8 three of muscle, the total quality of subframe 100 can be greatly reduced, is saved
Subframe 100 produces material requested, reduces the production cost of subframe 100, and then realizes that subframe 100 is structure lightened and want
It asks.
As depicted in figs. 1 and 2, the second reinforcing rib 7 is connected with adjacent third reinforcing rib 8 at rear-suspending mounting portion 5, and
Second reinforcing rib 7 and the third reinforcing rib 8 are formed as V-shaped structure, and the second reinforcing rib 7 and adjacent third reinforcing rib 8 and
Rear cross beam 2 forms triangular connection structure, effectively increases the bonding strength of the second reinforcing rib 7 and third reinforcing rib 8, so that
Second reinforcing rib 7, third reinforcing rib 8 and the connection structure that rear cross beam 2 is formed have good stability.It as a result, can be greatly
100 integrally-built strength and stiffness of subframe are improved, its stability is increased, there is the subframe 100 to be effectively prevented from
Vehicle occur gross distortion in accident, improve the safety that occupant rides.
Subframe 100 according to the ... of the embodiment of the present invention, by being connect with other of subframe 100 in rear-suspending mounting portion 5
The first reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8 are set between part, it is ensured that rear-suspending has higher installation rigidity, drop
The transmission of low dynamics assembly vibration, and the slotted hole structure between reinforcing rib can greatly reduce the total quality of subframe 100, by
This, can save body subframe 100 and produce material requested and cost, realize 100 light-weighted requirement of subframe.
In some embodiments, as depicted in figs. 1 and 2, lightening hole is equipped between the first reinforcing rib 6 and the second reinforcing rib 7
10, it is equipped with lightening hole 10 between the second reinforcing rib 7 and third reinforcing rib 8, lightening hole is equipped between adjacent third reinforcing rib 8
10, and lightening hole 10 is set to stress discrete areas.Subframe 100 has multiple lightening holes 10 as a result, and by multiple lightening holes
10 are spaced apart setting with the first reinforcing rib 6, the second reinforcing rib 7 and third reinforcing rib 8, may make 100 each position of subframe
Structural strength is uniform, while the Mass Distribution of 100 each position of subframe is uniform.In this way, it is rigid to improve 100 overall structure of subframe
Degree, ensures the installation rigidity of rear-suspending, while reducing by 100 integrally-built quality of subframe, realizes vehicle vehicle structure light weight
The design requirement of change.
Wherein, as shown in Figures 1 and 2, it is located at left side the first reinforcing rib 6, the second reinforcing rib 7 forms three with left longeron 3
Angular support construction is located at right side the first reinforcing rib 6, the second reinforcing rib 7 and right vertical beam 4 and forms triangular support structure, i.e., and the
Lightening hole 10 between one reinforcing rib 6, the second reinforcing rib 7 be formed as triangle run through through-hole, in this way, it is ensured that subframe
100 have effectively support stiffness and intensity, while reducing the whole quality of subframe 100, reduce production material requested, reduce
Production cost.
In one embodiment, 10 structure of lightening hole is located at the small region of 100 rigidity of structure contribution amount of subframe, and loss of weight
10 area of hole accounts for the 40% of 100 gross area of subframe, significantly reduces the whole quality of subframe 100, effectively realizes pair
Vehicle frame 100 is structure lightened.
In embodiment as depicted in figs. 1 and 2, the first reinforcing rib 6 is equipped with the first reinforcing prop 11 close to one end of longeron,
First reinforcing prop 11 is located at the junction of front beam 1 and longeron, and the junction of front beam 1 and longeron can be improved in the first reinforcing prop 11
The rigidity of structure and intensity.First reinforcing rib 6 is equipped with the second reinforcing prop 12 close to one end of rear-suspending mounting portion 5, and second reinforces
Column 12 is located at the junction of rear cross beam 2 and longeron, and the structure for the junction that rear cross beam 2 and longeron can be improved in the first reinforcing prop 11 is rigid
Degree and intensity.
Wherein, reinforce as shown in Figure 1, the first reinforcing prop 11 and second is respectively set at the both ends of the first reinforcing rib 6 as a result,
Column 12 may make the first reinforcing rib 6 and the connection of rear-suspending mounting portion 5 more to stablize, securely, while increase front beam 1 and indulge
The coupling stiffness of beam junction reduces the local stress of front beam 1 and longeron junction, ensures that the support of the first reinforcing rib 6 is made
With so that the overall structure of subframe 100 is more stablized.
In some embodiments, as depicted in figs. 1 and 2, the first reinforcing prop 11 and the second reinforcing prop 12 are open tubular column, can
With understanding, the first reinforcing prop 11 and the second reinforcing prop 12 are used to improve the structural strength and rigidity of subframe 100, by
This, hollow-core construction is disposed as by the first reinforcing prop 11 and the second reinforcing prop 12, can reduce the reinforcement of the first reinforcing prop 11 and second
The quality of column 12 simultaneously saves cost needed for its production, in this way, the whole structural strength of subframe 100 had both been improved, it is full simultaneously
The light-weighted demand of foot.
In some embodiments, as shown in Figure 1, the second reinforcing rib 7 is reinforced close to one end of rear-suspending mounting portion 5 and second
Column 12 is connected, and third reinforcing rib 8 includes three of laterally spaced apart setting, and an in-between third reinforcing rib 8 is connected to
Between rear-suspending mounting portion 5 and rear cross beam 2, other two third reinforcing rib 8 be connected to the second reinforcing prop 12 and rear cross beam 2 it
Between, i.e. the circumferential cloth along the second reinforcing prop 12 in the first reinforcing rib 6, the second reinforcing rib 7 and three third reinforcing ribs 8
It sets, and the second reinforcing prop 12 and rear-suspending mounting portion 5 are stably connected with.The active force that rear-suspending mounting portion 5 is subject to as a result, can pass through
First reinforcing rib 6, the second reinforcing rib 7, third reinforcing rib 8 are timely and effectively transferred to the longitudinal and cross beam of subframe 100, in turn
It is transferred to vehicle.
In some embodiments, third reinforcing rib 8 extends along the longitudinal direction, and three third reinforcing ribs 8 are laterally spaced apart
Setting, and as shown in fig. 1, three third reinforcing ribs 8 are arranged in parallel, and the height of third reinforcing rib 8 gradually subtracts from front to back
Small, i.e. the height of third reinforcing rib 8 is trapezoidal layout from front to back, and the reinforcing rib structure is novel, simple, it is easy to accomplish subframe
100 bearing capacity transmits.
In some embodiments, the junction of the first reinforcing rib 6 and front beam 1, which is equipped with, reinforces boss 14, the second reinforcing rib 7
It is equipped with the junction of rear cross beam 2 and reinforces boss 14, the junction of third reinforcing rib 8 and rear cross beam 2, which is equipped with, reinforces boss 14, such as
Shown in Fig. 2, the reinforcement boss 14 of the junction of third reinforcing rib 8 and rear cross beam 2 is towards rear projection, i.e. the reinforcement boss 14 is from rear cross
Beam 2 is away from the side of third reinforcing rib 8 protrusion.By setting reinforcement boss in the junction of reinforcing rib and front beam 1 or rear cross beam 2
14, the structural strength and rigidity of the junction can be effectively improved, and then avoid reinforcing rib and 1 junction of front beam or reinforcing rib
With 2 junction local stress of rear cross beam is excessive that connection is caused to be broken, it is strong that the integrally-built connection of subframe 100 can be improved as a result,
Degree and stability, prolong the service life, convenient for being used for a long time.
In some embodiments, at least one of left longeron 3, right vertical beam 4, front beam 1, second reinforcing rib 7 are equipped with the
Three reinforcing props 13, third reinforcing prop 13 are solid cylinder structure, and third reinforcing prop 13 is equipped with the third reinforcing prop 13 for improving
Connector structural strength.As shown in Figure 1, left longeron 3, right vertical beam 4, front beam 1, the second reinforcing rib 7 are equipped with third and add
Strong column 13, subframe 100 include six third reinforcing props 13, and as shown in Figure 1,13 outside of third reinforcing prop is equipped with triangle and reinforces
Muscle structure, the i.e. section of third reinforcing prop 13 are in "+" or " ┴ ", thus, it is ensured that the rigidity of reinforcing rib promotes subframe 100
Overall stiffness.By the way that multiple third reinforcing props 13 are arranged, the structural strength of subframe 100 can be effectively improved, and as in Fig. 1
Shown, third reinforcing prop 13 is respectively positioned on the middle part of the connector with it, it is to be understood that left longeron 3, right vertical beam 4 or preceding
Crossbeam 1 is most easily broken when power is transmitted in the middle part of it, and the middle part that third reinforcing prop 13 is set to connector as a result, can obviously carry
The structural strength of the high connector, and then the overall construction intensity of subframe 100 is promoted, convenient for being used for a long time.
In embodiment as Figure 1-Figure 2, front beam 1 and rear cross beam 2 are arc, and the middle part of front beam 1 and
Towards close to mutual side indent, front beam 1, left longeron 3, rear cross beam 2 and right vertical beam 4 are sequentially connected at the middle part of rear cross beam 2
Afterwards, the overall structure of subframe 100 is in butterfly makes the structure of subframe 100 under the premise of ensureing 100 overall stiffness of subframe
Material is realized and is utilized to the greatest extent, and then promotes the performance of subframe 100.
It should be noted that subframe 100 further includes multiple front swing arm installation points, as depicted in figs. 1 and 2, before longeron
End and rear end are respectively equipped with before front swing arm that installation point 17, i.e. front longitudinal beam and floor side member are equipped with forward swing after installation point 16 and front swing arm
Installation point 17 after installation point 16 and front swing arm before arm, as a result, subframe 100 can pass through multiple front swing arms with front swing arm solid point is installed
It is fixed to be connected, and as shown in Fig. 2, the arranged beneath of installation point 16 has vertical support construction 18, vertical support construction 18 before front swing arm
It can effectively ensure that the requirement of front swing arm installation point dynamic stiffness, vertical support construction 18 can connect subframe 100 with front swing arm
Stable supporting role is picked up, by 100 structural support of subframe and car body, improves 100 integrally-built stabilization of subframe
Property, promote the performance of vehicle.
Subframe 100 has the stabiliser bar installation position 15 for installing stabiliser bar, as depicted in figs. 1 and 2,3 He of left longeron
Right vertical beam 4 is equipped with stabiliser bar installation position 15, and stabiliser bar installation position 15 has towards the mounting surface protruded above, and mounting surface is equipped with and uses
In installing fixed stabiliser bar installation point with stabiliser bar.Wherein, stabiliser bar installation position 15 and the second reinforcing rib 7 are reinforced away from second
One end of column 12 is connected, and to play the role of support and power conduction to the installation of stabiliser bar, and then ensures stabiliser bar installation point
Local stiffness.As shown in fig. 1, the front of stabiliser bar installation position 15 is equipped with three supporting rib stiffeners 9 radially, and supports
The height of reinforcing rib 9 is 19mm, ensure that the coupling stiffness of subframe 100 and vehicle body, while can effectively promote subframe 100
The dynamic stiffness of front swing arm installation point, promotes the overall performance of subframe 100, in turn in whole installation rigidity and subframe 100
Promote the performance of vehicle.
Inventor repeatedly carries out Finite Element Simulation Analysis to the subframe 100 of the present invention, as shown in table 1, wherein subframe
100 restrained condition first-order modal frequency 335.3Hz, butterfly steel subframe 100 similar in comparison structure, mode improves 150Hz,
5 dynamic stiffness of rear-suspending mounting portion improves 2000N/mm, and 100 assembly quality of subframe reduces 40%, and subframe 100 constrains
State second-order modal frequency reaches 485.0Hz, and 100 restrained condition of subframe, three rank modal frequency reaches 525.6Hz, as a result, should
There is subframe 100 good performance, subframe 100 it is light to realize structure under the premise of ensureing modal stiffness performance
The requirement of quantization.
1 subframe modal frequency of table
The invention also provides a kind of vehicles.
Vehicle according to the ... of the embodiment of the present invention is provided with the subframe 100 of any of the above-described kind of embodiment, has the subframe
The complete vehicle quality of 100 vehicle is relatively low, and dynamic property is preferable.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the present invention, the meaning of " plurality " is two or more.
In the description of the present invention, fisrt feature second feature " on ", " top " and " above " include fisrt feature
Right over second feature and oblique upper, or it is merely representative of fisrt feature level height and is higher than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of subframe, which is characterized in that the subframe is cast aluminum construction, and includes:
Front beam and rear cross beam, the front beam and the rear cross beam are spaced apart setting along the longitudinal direction;
Longeron, the longeron include left longeron and right vertical beam, and the left longeron and the right vertical beam are spaced in left-right direction to be opened up
It sets, and the left longeron is connected with the right vertical beam by the front beam, the rear cross beam;
Rear-suspending mounting portion, the rear-suspending mounting portion is connected with the front beam, and the company of the front beam and the longeron
Place is met to being equipped with the first reinforcing rib between the rear-suspending mounting portion, the rear cross beam to the junction of the longeron is to after described
It suspending and is equipped with the second reinforcing rib between mounting portion, the rear cross beam arrives between the rear-suspending mounting portion equipped with third reinforcing rib,
Second reinforcing rib is suspended with adjacent first reinforcing rib at mounting portion in the rear to be connected, and is formed as V-shaped, institute
It states the second reinforcing rib and is suspended in the rear at mounting portion with the adjacent third reinforcing rib and is connected, and be formed as V-shaped, it is described
Second reinforcing rib is between first reinforcing rib and the third reinforcing rib.
2. subframe according to claim 1, which is characterized in that first reinforcing rib and second reinforcing rib it
Between, between second reinforcing rib and the third reinforcing rib, between the adjacent third reinforcing rib be equipped with lightening hole.
3. subframe according to claim 1, which is characterized in that first reinforcing rib is set close to one end of the longeron
There are the first reinforcing prop, first reinforcing rib to be equipped with the second reinforcing prop close to one end of the rear-suspending mounting portion.
4. subframe according to claim 3, which is characterized in that first reinforcing prop and second reinforcing prop are
Open tubular column.
5. subframe according to claim 3, which is characterized in that second reinforcing rib is close to the rear-suspending mounting portion
One end be connected with second reinforcing prop, the third reinforcing rib includes three of laterally spaced apart setting, in-between
One third reinforcing rib is connected between the rear-suspending mounting portion and the rear cross beam, other two described third is reinforced
Muscle is connected between second reinforcing prop and the rear cross beam.
6. subframe according to any one of claims 1-5, which is characterized in that the third reinforcing rib is along the longitudinal direction
Extend, and the height of the third reinforcing rib is gradually reduced from front to back.
7. subframe according to any one of claims 1-5, which is characterized in that first reinforcing rib, described second
The junction of reinforcing rib, the third reinforcing rib and the front beam, the rear cross beam, which is equipped with, reinforces boss.
8. subframe according to any one of claims 1-5, which is characterized in that the left longeron, the right vertical beam, institute
It states at least one of front beam, described second reinforcing rib and is equipped with third reinforcing prop.
9. subframe according to any one of claims 1-5, which is characterized in that the front beam and the rear cross beam are equal
For arc, and the middle part of the front beam and the middle part of the rear cross beam are towards close to side indent each other.
10. a kind of vehicle, which is characterized in that be provided with subframe as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848304.1A CN108688727B (en) | 2018-07-27 | 2018-07-27 | Auxiliary frame and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848304.1A CN108688727B (en) | 2018-07-27 | 2018-07-27 | Auxiliary frame and vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN108688727A true CN108688727A (en) | 2018-10-23 |
| CN108688727B CN108688727B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810848304.1A Active CN108688727B (en) | 2018-07-27 | 2018-07-27 | Auxiliary frame and vehicle |
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| CN111301524A (en) * | 2018-12-11 | 2020-06-19 | 上海汽车集团股份有限公司 | Pure electric vehicle and rear auxiliary frame thereof |
| JP2020104650A (en) * | 2018-12-27 | 2020-07-09 | 三菱自動車工業株式会社 | Cross member for automobile |
| CN113264110A (en) * | 2021-06-29 | 2021-08-17 | 四川建安工业有限责任公司 | Rib type aluminum alloy front auxiliary frame formed by vacuum die-casting |
| CN115352528A (en) * | 2022-09-16 | 2022-11-18 | 岚图汽车科技有限公司 | Front auxiliary frame and vehicle thereof |
| CN115447670A (en) * | 2021-06-08 | 2022-12-09 | 北京汽车股份有限公司 | Frame structure and vehicle |
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| CN108688727B (en) | 2023-12-19 |
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