CN114103551B - Front wheel installation assembly and car - Google Patents
Front wheel installation assembly and car Download PDFInfo
- Publication number
- CN114103551B CN114103551B CN202111460293.8A CN202111460293A CN114103551B CN 114103551 B CN114103551 B CN 114103551B CN 202111460293 A CN202111460293 A CN 202111460293A CN 114103551 B CN114103551 B CN 114103551B
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- arm
- auxiliary frame
- front wheel
- segment
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- 238000009434 installation Methods 0.000 title description 10
- 238000005452 bending Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003313 weakening effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B37/00—Wheel-axle combinations, e.g. wheel sets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
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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
Abstract
The invention provides a front wheel mounting assembly and an automobile, and relates to the technical field of automobiles. The front wheel mounting assembly comprises a front auxiliary frame and a swing arm, the left side and the right side of the front auxiliary frame are both connected with the swing arm, the swing arm comprises a first arm section and a second arm section which are intersected, the first arm section comprises a connecting end at the front and a rotating end at the rear, the second arm section comprises a disconnecting end close to the front auxiliary frame and a mounting end far away from the front auxiliary frame, the connecting end is fixedly connected with the rear of the second arm section, the rotating end is rotatably connected with the front auxiliary frame, the disconnecting end is fixedly connected with the front auxiliary frame, and the swing arm is configured to deform and press the front auxiliary frame towards the front auxiliary frame when the mounting end receives a first acting force from the front and larger than a preset threshold value, so that the disconnecting end is disconnected from the front auxiliary frame. The automobile comprises the front wheel mounting assembly. The front wheel mounting assembly and the automobile provided by the invention can improve the connection strength between the disengaging end of the swing arm and the front auxiliary frame.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a front wheel mounting assembly and an automobile.
Background
The front wheel mounting assembly is for connecting the front wheel to the vehicle body to mount the front wheel to the vehicle body. The small offset collision condition refers to the condition of the front face of the automobile when the barrier is impacted, wherein the overlap amount of the front face of the automobile and the transverse width of the automobile body is small. Both the chinese insurance automotive safety index and the american highway safety association conducted small offset crash condition tests with a barrier that overlapped 25% of the lateral width of the vehicle body. When the automobile collides with small offset, the collision part is pressed strongly and the collapse degree is large, so that the front wheels are impacted violently. At this time, in order to prevent the front wheels from moving backward and invading the riding space, the living space of the driver is affected, and the impacted front wheels can be thrown out to the outer side of the transverse direction of the vehicle body.
The existing front wheel mounting assembly comprises a front auxiliary frame and a swing arm, wherein the front auxiliary frame is used for being fixedly connected with a vehicle body, and the swing arm is used for connecting a front wheel and the front auxiliary frame. For making the front wheel that receives the striking throw out to the automobile body lateral outside, the swing arm is equipped with the installation end that is triangle-shaped and distributes, take-off end and rotation end, the installation end be used for with front wheel fastening connection, take-off end before the emergence collision with preceding sub vehicle frame fastening connection, rotation end and preceding sub vehicle frame rotate to be connected, take-off end and installation end all are in the place ahead of rotation end, take-off end and preceding sub vehicle frame junction intensity is less than the intensity of swing arm, the installation end is connected intensity with the front wheel and the connection intensity of rotation end and preceding sub vehicle frame. When the front wheel is impacted from the front, the disengaging end is disengaged and the front wheel connected with the mounting end rotates around the rotating end so as to transversely throw the front wheel to the outer side of the riding space
The existing front wheel mounting assembly is characterized in that the strength of the connection part between the disconnecting end and the front auxiliary frame is weakened, when the front wheel is impacted from the front, the disconnecting end is disconnected from the front auxiliary frame, and after the strength of the connection part between the disconnecting end and the front auxiliary frame is weakened, the fatigue resistance and the durability of the front wheel mounting assembly are weakened.
Disclosure of Invention
The invention aims to provide a front wheel mounting assembly and an automobile, and aims to solve the problem that in the prior art, the strength of the joint of the disengaging end of a swing arm and a front auxiliary frame is weakened to disengage the disengaging end from the front auxiliary frame.
In one aspect, the present invention provides a front wheel mounting assembly comprising: the front auxiliary frame and the swing arm are connected with the swing arm on the left side and the right side of the front auxiliary frame.
The swing arm includes crossing first arm section and second arm section, and first arm section includes the link and the rotation end at rear in place ahead, and the second arm section is including the departure end that is close to preceding sub vehicle frame and the installation end of keeping away from preceding sub vehicle frame, and the rear portion fastening connection of link and second arm section rotates with preceding sub vehicle frame to be connected, departure end and preceding sub vehicle frame fastening connection.
The swing arm is configured such that when the mounting end receives a first force from the front and greater than a preset threshold, the first arm segment deforms toward and presses against the front subframe to disengage the disengaging end from the front subframe.
Optionally, the first arm segment has at least a portion of a flexural strength that is less than the flexural strength of the second arm segment.
Optionally, the first arm section includes first section and second section, and the front end of first section is the link, and the rear end of first section is connected with the front end fastening of second section, and the rear end of second section is the rotation end, and the bending strength of second section is less than the bending strength of first section, and is less than the bending strength of second arm section.
Optionally, the radial section of the first section and the radial section of the second section are planes formed by sequentially connecting a plurality of sides end to end, and the number of the sides of the radial section of the first section is greater than that of the sides of the radial section of the second section.
Optionally, at least one corner of the first section in the circumferential direction is provided with a chamfer structure or a rounded corner structure.
Optionally, a reinforcing plate is fastened to the surface of the first section.
Optionally, the second section is provided with a lightening hole.
Optionally, the distance from the connecting end to the front auxiliary frame is greater than the distance from the rotating end to the front auxiliary frame, and the first arm section is an arc-shaped arm section bent towards the front auxiliary frame.
Optionally, the second arm section is provided with a reinforcing rib extending along the length direction thereof.
In another aspect, the present invention also provides an automobile, which includes a body, a front wheel, and the front wheel mounting assembly described above.
The front auxiliary frame of the front wheel mounting assembly is fixedly connected with the front end of the vehicle body, and the mounting ends of swing arms on the left side and the right side of the front wheel mounting assembly are fixedly connected with wheels.
The swing arm of the front wheel mounting assembly is configured to deform towards the front auxiliary frame and press the front auxiliary frame when the mounting end receives a first acting force which is from the front and is larger than a preset threshold value, and when the first arm section deforms and presses the front auxiliary frame, the front auxiliary frame can generate a second acting force which is equal to the contact force of the first arm section to the front auxiliary frame and opposite to the contact force of the first arm section to the first arm section, the second acting force can be transmitted to the disengaging end along with the swing arm, and the first acting force transmitted to the disengaging end along with the swing arm can form disengaging force for disengaging the disengaging end. When the first acting force with the same magnitude is generated by the impact of the same degree, the action of the second acting force generated by the front auxiliary frame is added at the disengaging end, the disengaging force borne by the disengaging end is obviously increased, the disengaging end can still be disengaged when the connecting strength of the disengaging end and the front auxiliary frame is higher, the disengaging of the disengaging end can not depend on the strength of the connecting part of the weakening disengaging end and the front auxiliary frame, the connecting strength of the disengaging end and the front auxiliary frame can be higher, the fatigue resistance and the durability of the connecting part of the disengaging end and the front auxiliary frame are improved, and the design contradiction between the fatigue resistance and the durability of the front wheel mounting assembly and the collision safety performance is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a front subframe and swing arm connection in a first view angle in an embodiment of a front wheel mounting assembly according to the present invention;
FIG. 2 is a schematic view of a front subframe and swing arm connection in a second view in an embodiment of a front wheel mounting assembly according to the present invention;
FIG. 3 is a schematic view of a front subframe and swing arm connection in a third view in an embodiment of a front wheel mounting assembly according to the present invention;
FIG. 4 is a schematic view of a front wheel mounting assembly according to an embodiment of the present invention, wherein a first arm segment of a swing arm is deformed and contacts a front subframe;
FIG. 5 is a force analysis chart of FIG. 4;
FIG. 6 is a schematic view of a front wheel mounting assembly according to an embodiment of the present invention with the release end of the swing arm released from the front subframe;
FIG. 7 is a schematic view of a swing arm in a fourth perspective of an embodiment of a front wheel mounting assembly according to the present invention;
FIG. 8 is a schematic view of a swing arm in a fifth perspective in an embodiment of a front wheel mounting assembly according to the present invention;
fig. 9 is a bottom view of a swing arm in an embodiment of the front wheel mounting assembly of the present invention.
Reference numerals illustrate:
100. a front subframe; 200. swing arms; 210. a first arm segment; 211. a first section; 212. a second section; 213. a connection end; 214. a rotating end; 215. a chamfering structure; 216. a lightening hole; 217. a reinforcing plate; 220. a second arm segment; 221. a mounting end; 222. a release end; 223. and a second reinforcing rib.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the above description, descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
As described in the background art, in the conventional front wheel mounting assembly, when the front wheel is impacted from the front, the mounting end connected to the front wheel receives a first force from the front, and the first force can be decomposed into a first component force directed in the disengaging direction of the disengaging end and a second component force perpendicular to the disengaging direction of the disengaging end, and the first component force and the second component force are transmitted to the disengaging end along with the swing arm, and the disengaging end can be disengaged only by the action of the first force, so that the disengaging end can be disengaged from the front subframe under the action of the first component force. Because the magnitude of the first component force decomposed by the first acting force is limited, if the connection strength of the release end and the front auxiliary frame is too high, the first component force cannot release the release end, so that the release end can be released from the front auxiliary frame when the front wheel is impacted from the front by weakening the strength of the connection part of the release end and the front auxiliary frame, after the strength of the connection part of the release end and the front auxiliary frame is weakened, the fatigue resistance and the durability of the front wheel assembly can be reduced, and the design contradiction between the fatigue resistance and the durability of the front wheel assembly and the collision safety performance is raised.
In order to solve the above-mentioned technical problem, the present inventor constructed the swing arm of the front wheel mounting assembly such that when the mounting end receives a first force from the front and greater than a preset threshold, the first arm section deforms toward the front subframe and presses the front subframe, and when the first arm section deforms and presses the front subframe, the front subframe generates a second force on the first arm section that is equal in magnitude and opposite in direction to the pressing force of the first arm section against the front subframe, the second force is split into a third component force in a release direction toward the release end and a fourth component force in a release direction perpendicular to the release end, the third component force and the fourth component force are transmitted to the release end along with the swing arm, and the third component force forms a release force for releasing the release end together with the first component force in the release direction split along with the first force transmitted to the release end by the swing arm. When the first acting force with the same magnitude is generated by the impact of the same degree, the action of the second acting force generated by the front auxiliary frame is added at the disengaging end, the disengaging force borne by the disengaging end is obviously increased, the disengaging end can still be disengaged when the connecting strength of the disengaging end and the front auxiliary frame is higher, the disengaging of the disengaging end can not depend on the strength of the connecting part of the weakening disengaging end and the front auxiliary frame, the connecting strength of the disengaging end and the front auxiliary frame can be higher, the fatigue resistance and the durability of the connecting part of the disengaging end and the front auxiliary frame are improved, and the design contradiction between the fatigue resistance and the durability of the front wheel mounting assembly and the collision safety performance is solved.
The front wheel mounting assembly and the automobile provided by the application are described in detail below in connection with specific embodiments.
FIG. 1 is a schematic view of a front subframe and swing arm connection in a first perspective in an embodiment of a proposed front wheel mounting assembly; FIG. 2 is a schematic view of a front subframe and swing arm connection in a second view in an embodiment of the proposed front wheel mounting assembly; FIG. 3 is a schematic view of a front subframe and swing arm connection in a third perspective in an embodiment of the proposed front wheel mounting assembly; FIG. 4 is a schematic view of a first arm segment of a swing arm deformed and contacting a front subframe in an embodiment of the proposed front wheel mounting assembly; FIG. 5 is a force analysis chart of FIG. 4; fig. 6 is a schematic view of the proposed front wheel mounting assembly with the release end of the swing arm released from the front subframe.
As shown in fig. 1 to 6, the present embodiment provides a front wheel mounting assembly including: front subframe 100 and swing arm 200, swing arm 200 is connected to the left and right sides of front subframe 100.
The swing arm 200 includes intersecting first and second arm segments 210, 220, the first arm segment 210 including a forward connecting end 213 and a rearward rotating end 214, the second arm segment 220 including a disengaging end 222 proximate the front subframe 100 and a mounting end 221 distal from the front subframe 100, the connecting end 213 being fixedly secured to a rear portion of the second arm segment 220, the rotating end 214 being rotatably connected to the front subframe 100, the disengaging end 222 being fixedly secured to the front subframe 100.
The swing arm 200 is configured such that when the mounting end 221 is subjected to a first force from the front that is greater than a preset threshold, the first arm segment 210 deforms toward the front subframe 100 and presses the front subframe 100 to disengage the disengaging end 222 from the front subframe 100.
In the above embodiment, when the mounting end 221 receives the first force from the front and greater than the preset threshold, the first arm segment 210 deforms toward the front subframe 100 and presses the front subframe 100, and when the first arm segment 210 deforms and presses the front subframe 100, the front subframe 100 generates a second force on the first arm segment 210, which is equal to and opposite to the pressing force of the first arm segment 210 on the front subframe 100, and the second force is decomposed into a third component force in the disengaging direction of the disengaging end 222 and a fourth component force perpendicular to the disengaging direction of the disengaging end 222, the third component force and the fourth component force are transmitted to the disengaging end 222 along with the swing arm 200, and the third component force forms a disengaging force for disengaging the disengaging end 222 together with the first component force in the disengaging direction decomposed along with the first force transmitted to the disengaging end 222 by the swing arm 200. When the first acting force with the same magnitude is generated by the impact with the same degree, the action of the second acting force generated by the front auxiliary frame 100 is added at the disengaging end 222, the disengaging force borne by the disengaging end 222 is obviously increased, the disengaging end 222 can still be disengaged when the connecting strength of the disengaging end 222 and the front auxiliary frame 100 is higher, the disengaging of the disengaging end 222 can not depend on weakening the strength of the connecting part of the disengaging end 222 and the front auxiliary frame 100, the connecting strength of the disengaging end 222 and the front auxiliary frame 100 can be higher, the fatigue resistance and the durability of the connecting part of the disengaging end 222 and the front auxiliary frame 100 are improved, and the design contradiction between the fatigue resistance and the durability of the front wheel mounting assembly and the collision safety performance is solved.
It should be understood that, in the present application, the direction in which the vehicle travels is taken as the front direction, and correspondingly, in the front wheel mounting assembly, the direction in which the vehicle travels after the front wheel mounting assembly is installed on the vehicle is taken as the front direction, the deformation of the first arm section 210 may be bending, the side surface of the first arm section facing the front subframe 100 is convex, and the like, so long as the first arm section 210 can be deformed and then can be pressed against the front subframe 100, and the release end 222 can be released from the front subframe 100.
The installation end 221 is used for installing a front wheel, a ball pin for installing the front wheel can be arranged at the installation end 221, the disengaging end 222 can be fixedly connected with the front auxiliary frame 100 through a mounting frame, longitudinal beams can be arranged on the left side and the right side of the front auxiliary frame 100, the disengaging end 222 and the rotating end 214 of the swing arms 200 on the two sides can be respectively connected with the corresponding longitudinal beams, and the first arm section 210 can deform towards the corresponding longitudinal beams on the front auxiliary frame 100 and press the corresponding longitudinal beams in a touching manner, so that the disengaging end 222 is disengaged from the front auxiliary frame 100.
In some possible embodiments, the flexural strength of at least a portion of the first arm segment 210 is less than the flexural strength of the second arm segment 220.
This arrangement facilitates bending of the second arm segment 220 while maintaining the shape of the first arm segment 210 to contact the front subframe 100. The first arm segment 210 is bent when the mounting end 221 is acted by the first acting force by adjusting the strength of each part of the swing arm 200, so that the structure is simple, the manufacture is convenient, and the cost is low.
In some examples, the first arm segment 210 and the second arm segment 220 are a unitary structure.
By the arrangement, stress concentration at the joint of the first arm section 210 and the second arm section 220 can be reduced, and the risk of bending at the joint of the first arm section 210 and the second arm section 220 due to stress is reduced.
Of course, the first arm segment 210 and the second arm segment 220 may be two segments manufactured independently, and the first arm segment 210 and the second arm segment 220 are fastened and connected by the connecting structure, so long as at least part of the bending strength of the first arm segment 210 is ensured to be smaller than the connection strength of the first arm segment 210 and the second arm segment 220.
FIG. 7 is a schematic view of a swing arm in a fourth perspective in an embodiment of the proposed front wheel mounting assembly;
FIG. 8 is a schematic view of a swing arm in a fifth perspective in an embodiment of the proposed front wheel mounting assembly; fig. 9 is a bottom view of a swing arm in an embodiment of the proposed front wheel mounting assembly.
As shown in fig. 7-9 and referring to fig. 1-6, in some possible embodiments, the first arm segment 210 includes a first segment 211 and a second segment 212, the front end of the first segment 211 is a connection end 213, the rear end of the first segment 211 is fixedly connected with the front end of the second segment 212, the rear end of the second segment 212 is a rotation end 214, and the bending strength of the second segment 212 is less than the bending strength of the first segment 211 and less than the bending strength of the second arm segment 220.
So set up, when the installation end 221 receives first effort to act on, the second section 212 of rotating the connection with preceding sub vehicle frame 100 takes place to bend, and the position of bending is close to the position of second section 212 rotation connection, does benefit to the position of bending and touches preceding sub vehicle frame 100, can reduce the demand to the deformation volume of taking place to buckle, in addition, can also reduce the influence to swing arm 200's radius of rotation after taking place to deform.
In some possible embodiments, the radial cross-section of the first section 211 and the radial cross-section of the second section 212 are each a plane defined by a plurality of sides connected end to end in sequence, and the number of sides of the radial cross-section of the first section 211 is greater than the number of sides of the radial cross-section of the second section 212.
By such arrangement, the radial stress of the first section 211 is more dispersed relative to the second section 212, and the first section 211 is less likely to bend relative to the second section 212, so that the bending strength of the first section 211 is greater than that of the second section 212.
It is understood that the radial cross-sectional sides of the first section 211 and the second section 212 may be straight sides or arc sides, and correspondingly, the side surfaces of the first section 211 and the second section 212 may be flat surfaces or arc surfaces.
In some possible embodiments, the first segment 211 is provided with a chamfer feature 215 or rounded corner feature at least one corner in the circumferential direction.
So arranged, the number of sides of the radial cross section of the first section 211 is increased by providing a chamfer structure 215 or a rounded corner structure at the corners of the circumference of the first section 211, which is simple to manufacture.
For example, chamfer structures 215 are provided at the corners of the left and right sides of the upper surface of the first section 211.
Of course, the corresponding mold may also be designed to produce a first arm segment 210 having a greater number of radial cross-sectional sides of the first segment 211 than the radial cross-sectional sides of the second segment 212.
In some examples, the first section 211 and the second section 212 are a unitary structure.
By this arrangement, the stress concentration at the junction of the first section 211 and the second section 212 can be reduced, and the risk of breakage due to stress at the junction of the first section 211 and the second section 212 can be reduced.
Of course, the first section 211 and the second section 212 may be two sections manufactured independently, and the first section 211 and the second section 212 are fastened and connected by the connecting structure, so long as the bending strength of the second section 212 is ensured to be smaller than the connection strength of the first section 211 and the second section 212.
In some possible embodiments, a reinforcing plate 217 is securely attached to the surface of the first section 211.
By this arrangement, the bending strength of the first section 211 can be improved by the reinforcing plate 217, and the manufacturing is facilitated.
For example, a reinforcing plate 217 may be fastened to the bottom surface of the first section 211.
In some examples, the surface-secured stiffener 217 of the first segment 211 extends to a corresponding side of the second arm segment 220 and is secured to the second arm segment 220.
By the arrangement, the strength of the connection part between the connection end 213 and the second arm segment 220 can be improved, and the risk of bending the connection part between the connection end 213 and the second arm segment 220 due to stress is reduced.
In some examples, the thickness of the first section 211 is greater than the thickness of the second section 212.
In this manner, the first section 211 advantageously has a greater flexural strength than the second section 212, and the first section 211 and the second section 212 advantageously are integrally formed from the same material.
In some examples, the width of the first section 211 is greater than the width of the second section 212.
In this manner, the first section 211 advantageously has a greater flexural strength than the second section 212, and the first section 211 and the second section 212 advantageously are integrally formed from the same material.
In some examples, the strength of the material forming the first segment 211 and the second arm segment 220 is greater than the strength of the material forming the second segment 212.
In some examples, the first section 211 is provided with reinforcing ribs extending along its length.
This arrangement facilitates increasing the flexural strength of the first section 211.
In some possible embodiments, the second section 212 is provided with a lightening hole 216.
By the arrangement, on one hand, the weight of the swing arm 200 can be reduced, the lightweight design of the automobile is facilitated, and on the other hand, the strength of the second section 212 can be reduced, and the second section 212 is facilitated to be bent.
In some possible embodiments, the distance from the connecting end 213 to the front subframe 100 is greater than the distance from the rotating end 214 to the front subframe 100, and the first arm segment 210 is an arcuate arm segment that curves toward the front subframe 100.
This arrangement facilitates deformation of the first arm segment 210 in the direction of the front subframe 100 when the mounting end 221 is subjected to a first force from the front.
In some possible embodiments, the second arm segment 220 is provided with a stiffener 223 extending along its length.
This arrangement facilitates increasing the flexural strength of the second arm segment 220.
In some examples, the stiffener 223 includes an enlarged portion that extends to a corresponding surface of the first arm segment 210.
So set up, do benefit to the intensity that improves linkage segment and second arm segment 220 junction, reduce the risk that link 213 and second arm segment 220 junction atress take place to buckle.
For example, the upper surface of the second arm segment 220 is provided with a reinforcing rib 223 extending along the length direction thereof, and the end of the reinforcing rib 223 facing the release end 222 is an enlarged portion.
In some possible embodiments, a reinforcing plate is securely attached to the surface of the second arm segment 220.
By this arrangement, the bending strength of the second arm segment 220 can be improved by the reinforcing plate, and the manufacturing is convenient.
In some examples, the thickness of the second arm segment 220 is greater than the thickness of the second segment 212.
In this manner, the second arm segment 220 advantageously has a greater flexural strength than the second segment 212, and the first and second arm segments 210, 220 are advantageously integrally formed from the same material.
In some examples, the width of the second arm segment 220 is greater than the width of the second segment 212.
In this manner, the second arm segment 220 advantageously has a greater flexural strength than the second segment 212, and the first and second arm segments 210, 220 are advantageously integrally formed from the same material.
In some possible embodiments, the radial cross-section of the second arm segment 220 and the radial cross-section of the second segment 212 are each a plane defined by a plurality of side edges connected end to end in sequence, and the number of side edges of the radial cross-section of the second arm segment 220 is greater than the number of side edges of the radial cross-section of the second segment 212.
By such arrangement, the radial stress of the second arm segment 220 is more dispersed relative to the second segment 212, and the second arm segment 220 is less likely to bend relative to the second segment 212, so that the bending strength of the second arm segment 220 is greater than that of the second segment 212.
It will be appreciated that the sides of the radial cross-sections of the second arm segment 220 and the second segment 212 may be straight sides or curved sides, and that the sides of the second arm segment 220 and the second segment 212 may be flat sides or curved sides, respectively.
In some possible embodiments, the second arm segment 220 is provided with a chamfer feature 215 or rounded corner feature at least one corner in the circumferential direction.
So arranged, the number of sides of the radial cross section of the second arm segment 220 is increased by providing a chamfer structure 215 or a rounded corner structure at the corners of the circumferential direction of the second arm segment 220, which is simple to manufacture.
In other examples, a pressure sensor may also be provided at the mounting end 221, with the first arm segment 210 being configured to deform in response to a control signal from the pressure sensor.
For example, a retractable contact structure may be provided on the side of the first arm segment 210 facing the front subframe 100, the contact structure retracting under control of the pressure sensor, the contact structure contacting the front subframe 100 when extended.
Alternatively, the first arm segment 210 is configured in a foldable structure that folds or unfolds under control of the pressure sensor, the first arm segment 210 pressing against the front subframe 100 when folded.
The automobile provided in this embodiment includes: comprising a vehicle body, a front wheel, and a front wheel mounting assembly in any of the above embodiments.
The front auxiliary frame of the front wheel mounting assembly is fixedly connected with the front end of the vehicle body, and the mounting ends of swing arms on the left side and the right side of the front wheel mounting assembly are fixedly connected with wheels.
In the embodiment, the disengaging of the disengaging end of the swing arm does not depend on weakening the strength of the joint of the disengaging end and the front auxiliary frame, the joint strength of the disengaging end and the front auxiliary frame can be higher, fatigue resistance and durability of the joint of the disengaging end and the front auxiliary frame are improved, and the design contradiction between the fatigue resistance and durability of the front wheel mounting assembly and the collision safety performance is solved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. The front wheel mounting assembly is characterized by comprising a front auxiliary frame and swing arms, wherein the swing arms are connected to the left side and the right side of the front auxiliary frame;
the swing arm comprises a first arm section and a second arm section which are intersected, the first arm section comprises a front connecting end and a rear rotating end, the second arm section comprises a disengaging end close to the front auxiliary frame and a mounting end far away from the front auxiliary frame, the connecting end is fixedly connected with the rear part of the second arm section, the rotating end is rotatably connected with the front auxiliary frame, and the disengaging end is fixedly connected with the front auxiliary frame;
the swing arm is configured such that when the mounting end receives a first force from the front and greater than a preset threshold, the first arm segment deforms toward the front subframe and presses the front subframe to disengage the disengaging end from the front subframe;
at least a portion of the first arm segment has a flexural strength less than the flexural strength of the second arm segment; the first arm section comprises a first section and a second section, the front end of the first section is the connecting end, the rear end of the first section is fixedly connected with the front end of the second section, the rear end of the second section is the rotating end, and the bending strength of the second section is smaller than that of the first section and smaller than that of the second arm section.
2. The front wheel mounting assembly of claim 1, wherein the radial cross-section of the first segment and the radial cross-section of the second segment are each a plane defined by a plurality of side edges joined end-to-end in sequence, the number of side edges of the radial cross-section of the first segment being greater than the number of side edges of the radial cross-section of the second segment.
3. The front wheel mounting assembly of claim 2, wherein at least one corner of the first section circumference is provided with a chamfer or rounded corner structure.
4. The front wheel mounting assembly of claim 1, wherein a reinforcement plate is fixedly attached to a surface of the first section.
5. The front wheel mounting assembly of claim 1, wherein the second section is provided with a lightening hole.
6. The front wheel mounting assembly of claim 1, wherein the distance from the connecting end to the front subframe is greater than the distance from the rotating end to the front subframe, and wherein the first arm segment is an arcuate arm segment that curves toward the front subframe.
7. The front wheel mounting assembly of any one of claims 1-6, wherein the second arm segment is provided with a reinforcing rib extending along a length thereof.
8. An automobile comprising a body, a front wheel, and the front wheel mounting assembly of any one of claims 1-7;
the front auxiliary frame of the front wheel mounting assembly is fixedly connected with the front end of the vehicle body, and the mounting ends of swing arms on the left side and the right side of the front wheel mounting assembly are fixedly connected with the wheels.
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| CN202111460293.8A CN114103551B (en) | 2021-12-02 | 2021-12-02 | Front wheel installation assembly and car |
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| CN202111460293.8A CN114103551B (en) | 2021-12-02 | 2021-12-02 | Front wheel installation assembly and car |
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| CN114103551B true CN114103551B (en) | 2024-03-29 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008126950A (en) * | 2006-11-24 | 2008-06-05 | Ntn Corp | Bearing device for driving wheel |
| CN203198654U (en) * | 2013-03-28 | 2013-09-18 | 长城汽车股份有限公司 | Suspension frame control arm for vehicle and vehicle with suspension frame control arm |
| DE102012021269A1 (en) * | 2012-10-29 | 2014-04-30 | Audi Ag | Vehicle, has independent suspension whose steering arms are deformed by hitting front wheel during partially overlapping frontal collision, and separating devices for disassembling attachment part between landing gears and front wheel |
| JP2015157539A (en) * | 2014-02-24 | 2015-09-03 | トヨタ自動車株式会社 | Suspension device for vehicle |
| CN204687775U (en) * | 2015-05-28 | 2015-10-07 | 上海联谷汽车配件有限公司 | A kind of new-energy automobile forward mounting lower swing arm assembly |
| CN110039965A (en) * | 2019-04-22 | 2019-07-23 | 浙江吉利控股集团有限公司 | Bottom arm assembly and vehicle for vehicle |
| CN211166288U (en) * | 2019-09-24 | 2020-08-04 | 浙江德明汽车部件有限公司 | Lower swing arm |
| CN111634166A (en) * | 2019-03-01 | 2020-09-08 | 广州汽车集团股份有限公司 | Connecting support, front suspension lower swing arm assembly and automotive suspension |
| CN211764761U (en) * | 2019-11-27 | 2020-10-27 | 浙江德明汽车部件有限公司 | Automobile front swing arm assembly |
| CN111859721A (en) * | 2019-04-19 | 2020-10-30 | 广州汽车集团股份有限公司 | Automobile lower swing arm optimization design method |
| CN212290029U (en) * | 2020-03-09 | 2021-01-05 | 吉利汽车研究院（宁波）有限公司 | Preceding sub vehicle frame structure assembly and vehicle |
| CN212827734U (en) * | 2020-06-01 | 2021-03-30 | 浙江天瑞汽车零部件有限公司 | High strength structure optimization type automobile swing arm assembly |
| CN113650460A (en) * | 2021-08-18 | 2021-11-16 | 东风柳州汽车有限公司 | Swing arm connecting piece and swing arm assembly of suspension system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9022403B2 (en) * | 2013-03-11 | 2015-05-05 | Nissan North America, Inc. | Vehicle front suspension |
-
2021
- 2021-12-02 CN CN202111460293.8A patent/CN114103551B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008126950A (en) * | 2006-11-24 | 2008-06-05 | Ntn Corp | Bearing device for driving wheel |
| DE102012021269A1 (en) * | 2012-10-29 | 2014-04-30 | Audi Ag | Vehicle, has independent suspension whose steering arms are deformed by hitting front wheel during partially overlapping frontal collision, and separating devices for disassembling attachment part between landing gears and front wheel |
| CN203198654U (en) * | 2013-03-28 | 2013-09-18 | 长城汽车股份有限公司 | Suspension frame control arm for vehicle and vehicle with suspension frame control arm |
| JP2015157539A (en) * | 2014-02-24 | 2015-09-03 | トヨタ自動車株式会社 | Suspension device for vehicle |
| CN204687775U (en) * | 2015-05-28 | 2015-10-07 | 上海联谷汽车配件有限公司 | A kind of new-energy automobile forward mounting lower swing arm assembly |
| CN111634166A (en) * | 2019-03-01 | 2020-09-08 | 广州汽车集团股份有限公司 | Connecting support, front suspension lower swing arm assembly and automotive suspension |
| CN111859721A (en) * | 2019-04-19 | 2020-10-30 | 广州汽车集团股份有限公司 | Automobile lower swing arm optimization design method |
| CN110039965A (en) * | 2019-04-22 | 2019-07-23 | 浙江吉利控股集团有限公司 | Bottom arm assembly and vehicle for vehicle |
| CN211166288U (en) * | 2019-09-24 | 2020-08-04 | 浙江德明汽车部件有限公司 | Lower swing arm |
| CN211764761U (en) * | 2019-11-27 | 2020-10-27 | 浙江德明汽车部件有限公司 | Automobile front swing arm assembly |
| CN212290029U (en) * | 2020-03-09 | 2021-01-05 | 吉利汽车研究院（宁波）有限公司 | Preceding sub vehicle frame structure assembly and vehicle |
| CN212827734U (en) * | 2020-06-01 | 2021-03-30 | 浙江天瑞汽车零部件有限公司 | High strength structure optimization type automobile swing arm assembly |
| CN113650460A (en) * | 2021-08-18 | 2021-11-16 | 东风柳州汽车有限公司 | Swing arm connecting piece and swing arm assembly of suspension system |
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|---|---|
| CN114103551A (en) | 2022-03-01 |
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