CN116476580A - Lower control arm of lightweight car - Google Patents
Lower control arm of lightweight car Download PDFInfo
- Publication number
- CN116476580A CN116476580A CN202310421495.4A CN202310421495A CN116476580A CN 116476580 A CN116476580 A CN 116476580A CN 202310421495 A CN202310421495 A CN 202310421495A CN 116476580 A CN116476580 A CN 116476580A
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- CN
- China
- Prior art keywords
- control arm
- arm
- sleeve
- support arm
- comfortable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005242 forging Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000008094 contradictory effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000000725 suspension Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/04—Buffer means for limiting movement of arms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the technical field of automobile chassis suspension systems, and provides a lightweight automobile front lower control arm which comprises a control arm, wherein a support arm is integrally formed on one side of the control arm, a comfortable loop bar is installed at one end of the support arm, a control sleeve is installed at one end of the control arm, and the cross section of the support arm is I-shaped. The mounting plate, the comfortable loop bar and the control sleeve are mutually matched, so that the function of the support arm as a single guide element and a force transmission element of an automobile suspension system is realized, the bending deformation resistance of the support arm under longitudinal force is improved through the support arm arranged in an I shape, the structure is simple, the redundant design in the traditional structure is removed, the process difficulty and the quality are reduced, and in addition, the device is forged in an integral forming manner, the influence of processes such as rebound and welding deformation caused by sheet metal stamping is avoided, the quality of the device is improved, and the popularization of equipment is facilitated.
Description
Technical Field
The invention relates to the technical field of automobile chassis suspension systems, in particular to a lightweight automobile front lower control arm.
Background
In order to reduce the energy consumption of an automobile and increase the endurance mileage of the automobile, the weight reduction of the automobile has become the key point of automobile research and development, wherein a front lower control arm of the automobile is used as a connecting medium between wheels and an automobile body, the front lower control arm material of the McPherson structure is generally made of steel, the front lower control arm material is mostly formed by stamping an inner plate and an outer plate and then welded, but the difficulty of the forming process is high, the gap between the inner plate and the outer plate is required to be ensured not to exceed the width of a welding wire, interference cannot occur, so that an outer plate cannot be matched with an inner plate, the whole part after welding can deform by +/-0.3 mm, the difficulty of installing the control arm is increased, the wheel positioning parameters are influenced, the operation stability of the whole automobile is greatly influenced, and the quality of the front lower control arm can be improved by the manufacturing mode, so that the weight reduction design of the automobile is not facilitated. In view of this, we propose a lightweight automobile front lower control arm.
Disclosure of Invention
The invention aims to solve the defects of complex manufacturing process and large product quality of an automobile front lower control arm in the prior art, and provides a lightweight automobile front lower control arm.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a lower control arm in lightweight car, includes the control arm, control arm one side integrated into one piece has the support arm, comfortable loop bar is installed to support arm one end, and the outside cover that rotates of comfortable loop bar is equipped with comfortable bush, control sleeve is installed to control arm one end, and other end integrated into one piece is used for installing the mounting panel of bulb, control sleeve inside rotation cover and be equipped with and control the bush, the support arm cross section sets up to the I-shaped.
Preferably, the conical protrusions are arranged at two ends of the control bushing, a sliding groove is formed between the conical protrusions, the wear-resistant sleeve ring in interference fit with the conical protrusions is rotatably arranged in the control sleeve, sliding holes for controlling the sliding of the bushing are formed in the wear-resistant sleeve ring, the diameters of the conical protrusions are slowly increased according to the sequence from outside to inside, and the diameters of the sliding holes in the middle of the wear-resistant sleeve ring are smaller than the diameters of the largest positions of the conical protrusions.
Preferably, a buffer groove is formed at the joint of the comfortable loop bar and the supporting arm, a buffer sleeve which is mutually abutted against the comfortable lining is slidably arranged in the buffer groove, and a buffer spring fixedly connected with the buffer groove is arranged at one end of the buffer sleeve.
Preferably, a supporting rod for improving the strength of the supporting arm is arranged inside the supporting arm.
Preferably, the control arm, the support arm and the mounting plate are all made of aluminum alloy materials AL6082-T651 through forging.
Preferably, the mounting plate is provided with mounting holes connected with the ball pins, and the mounting holes are arranged in a triangle shape on the mounting plate.
Preferably, one end of the mounting plate is provided with a containing groove for ball head rotation.
Preferably, the control arm is provided with a plurality of connecting holes connected with the components.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention realizes the functions of the support arm as a single guide element and a force transmission element of an automobile suspension system through the mutual matching of the mounting plates, the comfortable loop bars and the control sleeve arranged on the support arm and the control arm, improves the bending deformation resistance when the support arm is subjected to longitudinal force through the support arm arranged in an I shape, has simple structure, removes the redundant design in the traditional structure, reduces the process difficulty and the quality, and avoids the influence caused by the processes such as rebound, welding deformation and the like caused by sheet metal stamping because the device is forged in an integrated forming mode, improves the quality of the device and is beneficial to the popularization of equipment.
2. According to the invention, the stability of the supporting arm is improved through the arrangement of the supporting rod, the strength of the supporting arm is improved, and the supporting arm can be arranged to be of a hollow structure, so that the quality of the whole device is reduced, and the manufacturing cost is saved.
3. The invention realizes the installation of the control arm and the ball head through the matching connection of the installation hole and the ball head pin, improves the connection strength of the installation hole and the ball head by virtue of the stability of the triangle, and is convenient for the control arm to control the advancing direction of the wheel through the ball head.
4. According to the anti-wear sleeve, the anti-wear sleeve ring is connected with the control sleeve in a rotating way, so that the anti-wear sleeve ring can synchronously rotate with the control sleeve under the action of friction force when the control sleeve rotates, abrasion between the anti-wear sleeve ring and the conical protrusions is reduced, and the service life of the control sleeve is prolonged.
5. The impact on the support arm is absorbed through the arrangement of the buffer spring and the buffer sleeve, and the impact force absorbed by the buffer spring is released by utilizing the back and forth vibration of the buffer spring, so that the impact force on the support arm is reduced, and the failure occurrence rate is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of a steering sleeve of the present invention;
FIG. 4 is a cross-sectional view of a comfort loop bar of the present invention;
FIG. 5 is a graph of the CAE simulation stiffness check result of the present invention;
FIG. 6 is a graph of the CAE simulation strength check result of the present invention;
fig. 7 is a schematic diagram of a three-dimensional simulation of the front control arm of the macpherson structure.
In the figure: 1. a control arm; 2. a support arm; 21. a support rod; 3. a comfortable loop bar; 31. a limit collar; 32. a buffer sleeve; 33. a buffer spring; 34. a buffer tank; 4. a control sleeve; 41. an anti-wear collar; 5. controlling the bushing; 51. a conical protrusion; 6. a mounting plate; 7. a mounting hole; 8. a receiving groove; 9. a connection hole; 10. comfort liner.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Example 1
Referring to fig. 1-7, a lower control arm of lightweight car, including control arm 1, control arm 1 one side integrated into one piece has support arm 2, comfortable loop bar 3 is installed to support arm 2 one end, and the outside cover that rotates of comfortable loop bar 3 is equipped with comfortable bush 10, control sleeve 4 is installed to control arm 1 one end, the other end integrated into one piece is used for installing the mounting panel 6 of bulb, control sleeve 4 inside rotates the cover and is equipped with and controls bush 5, support arm 2 cross section sets up to the i-shaped, lower front control arm 1 is as automobile suspension system single direction component and force transmission component, transmit the longitudinal force and the lateral force and the moment of bottom surface to the wheel to frame or automobile body through suspension system, make the wheel according to the motion of driver given direction, guarantee that the car normally travels.
During manufacturing, forging machinery can be utilized to apply pressure to the metal blank, so that the metal blank is deformed in a shaping way and is gradually transformed into the shape of the existing control arm 1, the defects of cast loosening and the like generated in the smelting process of metal can be eliminated by forging, the microstructure is optimized, meanwhile, the mechanical properties of the forging are generally superior to those of castings made of the same materials because of the preservation of complete metal streamline, and the forged control arm 1 is beneficial to improving the bearing performance of the forging control arm 1.
During installation, the comfortable sleeve rod 3 and the control sleeve 4 can be sleeved with the comfortable sleeve rod 10 and the control sleeve 5 respectively, then the control arm 1 is connected with the auxiliary frame in the suspension system through the cooperation of the comfortable sleeve rod 10 and the control sleeve 5, the control sleeve 5 is closer to the wheel center, more lateral force applied to the vehicle acts on the sleeve, so that the traveling direction of the wheel is convenient to control, the comfortable sleeve rod 10 is farther away from the wheel center, the main effect is to relieve vibration in the front-rear direction of the vehicle, the mounting plate 6 arranged at one end of the control arm 1 is used for mounting a ball head, and the mounting plate 6 is a bridge for connecting the control arm 1 with the knuckle because the ball head is connected with the knuckle.
In addition, as shown in fig. 2, the cross section of the supporting arm 2 is of an I-shaped structure, the bending deformation resistance is strong when the supporting arm is subjected to longitudinal force, the structure is simple, the redundant design is removed, the process difficulty is reduced, the quality is convenient to control, the weight of the newly designed control arm 1 is 1.4Kg, the weight of the control arm 1 is reduced by 1.9Kg before the original McPherson structure, which is 3.3Kg, the weight of the control arm is reduced by about 57 percent, the weight of a product is effectively reduced, the target quality requirement is met, meanwhile, as shown in fig. 5 and 6, the structure can meet the performance requirement of rigidity and strength through being verified through CAE simulation means, the control arm 1 is forged in an integrally formed mode, the position size of an installation interface is processed through being matched with a mechanical processing technology, the influence caused by processes such as rebound and welding deformation caused by sheet metal stamping is avoided, the quality of the device is improved, and the popularization of equipment is facilitated.
The tapered protrusions 51 are arranged at two ends of the control sleeve 5, a sliding groove is formed between the two tapered protrusions 51, the anti-abrasion sleeve ring 41 in interference fit with the tapered protrusions 51 is rotatably arranged in the control sleeve 4, sliding holes for the control sleeve 5 to slide are formed in the anti-abrasion sleeve ring 41, the diameter of the tapered protrusions 51 is slowly increased according to the sequence from outside to inside, the diameter of the sliding holes in the middle of the anti-abrasion sleeve ring 41 is smaller than the diameter of the largest position of the tapered protrusions 51, the control sleeve 5 is arranged in the control sleeve 4 through interference fit of the tapered protrusions 51 and the anti-abrasion sleeve ring 41, so that when the control sleeve 5 rotates, the tapered protrusions 51 and the anti-abrasion sleeve ring 41 are caused to rub against each other, and the anti-abrasion sleeve ring 41 is connected with the control sleeve 4 in a rotating mode, and therefore abrasion between the anti-abrasion sleeve ring 41 and the tapered protrusions 51 is reduced under the action of friction force, and the service life of the control sleeve 5 is prolonged.
The utility model provides a comfortable loop bar 3 one end is equipped with comfortable bush 10 interference fit's spacing lantern ring 31, the buffer tank 34 has been seted up to comfortable loop bar 3 and support arm 2 junction, the buffer sleeve 32 of contradicting each other with comfortable bush 10 is installed to buffer sleeve 32 one end, buffer spring 33 with buffer tank 34 rigid coupling is installed to buffer sleeve 32 one end, because the main effect of comfortable bush 10 is in order to cushion the vibration in the frame fore-and-aft direction, so can often slide on comfortable loop bar 3, the junction of comfortable loop bar 3 and support arm 2 is strikeed often, in order to alleviate the striking dynamics of comfortable bush 10, the striking that receives of support arm 2 is absorbed through buffer spring 33 and buffer sleeve 32's setting in this scheme, and utilize the back and forth vibration of buffer spring 33, release the striking power that its absorbed, thereby the striking dynamics that support arm 2 received has been reduced, its fault occurrence rate.
The support arm 2 is inside to be provided with the bracing piece 21 that is used for improving support arm 2 intensity, and bracing piece 21 installs inside support arm 2, through the stability that both ends and support arm 2 are connected formation, has improved the intensity of support arm 2 for support arm 2 can set to the hollow structure as shown in figure 1, greatly reduced the quality of whole device, and practiced thrift the cost of manufacture.
The control arm 1, the support arm 2 and the mounting plate 6 are all made of aluminum alloy materials AL6082-T651 by forging, and the aluminum alloy materials have low density which is only one third of steel, so that the quality of the device can be greatly reduced by selecting the materials as main manufacturing raw materials of the device, and the corrosion resistance and the oxidation resistance of the aluminum materials are greatly higher than those of steel materials, so that the service life of the automobile can be finished without antiseptic treatment, and the usability of the device is improved.
Example two
Referring to fig. 1-7, the present embodiment is substantially the same as the first embodiment, and more preferably, the mounting plate 6 is provided with mounting holes 7 connected with ball pins, and the mounting holes 7 are arranged in a triangle shape on the mounting plate 6, and due to the stability of the triangle shape, the mounting stability of the control arm 1 and the ball head can be improved by matching and connecting the mounting holes 7 arranged in the triangle shape with the ball pins, so that the control arm 1 can conveniently control the running direction of the wheel through the ball head.
One end of the mounting plate 6 is provided with a containing groove 8 for ball head rotation, as shown in fig. 1, the containing groove 8 with an arc structure can reduce the rotation resistance of the ball head, and the movement of the ball head is facilitated.
The control arm 1 is provided with a plurality of connecting holes 9 connected with the components, and the convenience of connection between the control arm 1 and other components on the suspension frame is improved due to the arrangement of the connecting holes 9, so that the control arm 1 is mounted.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lightweight automobile front lower control arm, includes control arm (1), its characterized in that: the utility model discloses a control arm, including control arm (1), support arm (2), comfortable loop bar (3) are installed to support arm (2) one end, and comfortable loop bar (3) outside interference fit has comfortable bush (10), control sleeve (4) are installed to control arm (1) one end, and other end integrated into one piece is used for installing mounting panel (6) of bulb, control sleeve (4) inside interference fit has control bush (5), support arm (2) cross section sets up to the I-shaped.
2. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the anti-wear sleeve is characterized in that conical protrusions (51) are arranged at two ends of the control sleeve (5), a sliding groove is formed between the conical protrusions (51), an anti-wear sleeve ring (41) in interference fit with the conical protrusions (51) is arranged in the control sleeve (4) in a rotating mode, sliding holes for controlling the sliding of the sleeve (5) are formed in the anti-wear sleeve ring (41), the diameters of the conical protrusions (51) are slowly increased according to the sequence from outside to inside, and the diameter of the sliding hole in the middle of the anti-wear sleeve ring (41) is smaller than the diameter of the largest position of the conical protrusions (51).
3. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the utility model discloses a comfortable loop bar (3), including support arm (2), comfortable loop bar (3), buffer groove (34) have been seted up in comfortable loop bar (3) one end be equipped with comfortable bush (10) interference fit's spacing lantern ring (31), buffer sleeve (32) of mutually contradicting with comfortable bush (10) are installed to the interior sliding mounting in buffer groove (34), buffer spring (33) with buffer groove (34) rigid coupling are installed to buffer sleeve (32) one end.
4. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the support arm (2) is internally provided with a support rod (21) for improving the strength of the support arm (2).
5. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the control arm (1), the support arm (2) and the mounting plate (6) are all made of aluminum alloy materials AL6082-T651 through forging.
6. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the mounting plate (6) is provided with mounting holes (7) connected with the ball pins, and the mounting holes (7) are arranged in a triangle shape on the mounting plate (6).
7. A lightweight automotive front lower control arm as set forth in claim 1, wherein: one end of the mounting plate (6) is provided with a containing groove (8) for rotating the ball head.
8. A lightweight automotive front lower control arm as set forth in claim 1, wherein: the control arm (1) is provided with a plurality of connecting holes (9) connected with the components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421495.4A CN116476580A (en) | 2023-04-19 | 2023-04-19 | Lower control arm of lightweight car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421495.4A CN116476580A (en) | 2023-04-19 | 2023-04-19 | Lower control arm of lightweight car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116476580A true CN116476580A (en) | 2023-07-25 |
Family
ID=87220759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310421495.4A Pending CN116476580A (en) | 2023-04-19 | 2023-04-19 | Lower control arm of lightweight car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116476580A (en) |
-
2023
- 2023-04-19 CN CN202310421495.4A patent/CN116476580A/en active Pending
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