CN212194980U - Integrated control arm of heavy-duty car - Google Patents
Integrated control arm of heavy-duty car Download PDFInfo
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- CN212194980U CN212194980U CN202020579530.7U CN202020579530U CN212194980U CN 212194980 U CN212194980 U CN 212194980U CN 202020579530 U CN202020579530 U CN 202020579530U CN 212194980 U CN212194980 U CN 212194980U
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- mounting seat
- side waist
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- 210000001624 hip Anatomy 0.000 claims description 43
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 239000003351 stiffener Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 20
- 238000005242 forging Methods 0.000 abstract description 14
- 238000003754 machining Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 13
- 238000005266 casting Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model discloses a heavy-duty car integrated into one piece control arm belongs to automobile parts technical field. The integrally formed control arm has a frame-like structure including a shaft mount portion and a main body portion; the shaft mounting seat part comprises a first shaft mounting seat and a second shaft mounting seat; the main body part comprises a main body connected with the shaft mounting seat part, and a main shaft seat is arranged at one end of the main body, which is far away from the shaft mounting seat part; the main part is including the tie-beam, first side waist and the second side waist that have the I-shaped cross-section, and the both ends of tie-beam are located respectively to first side waist and second side waist. According to the technical scheme, on the premise that the strength and rigidity requirements of the control arm are met, the integrally formed control arm is lighter in weight, avoids welding seams and improves the stability of the structure compared with the traditional forging and welding control arm; meanwhile, the investment of the control arm on forging equipment, welding equipment, machining equipment and a special forging die is saved, and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to a vehicle parts technical field, concretely relates to heavy-duty car integrated into one piece control arm.
Background
At present, a control arm is used as an important bearing component of a truck suspension system, bears the severe extreme load of the limit working condition of a truck and the alternating (fatigue) load in the driving process, a heavy truck is responsible for the heavy load of long-distance transportation of goods and materials, the control arm is stressed more badly, and the structure of the control arm has enough comprehensive mechanical properties.
In the prior art, a heavy-duty car control arm is mainly made of forged steel with high strength, and a forged piece is machined and then welded to form a combined piece. However, the draw arm assembly formed by welding a forged piece after machining still has the following disadvantages:
1. the cost is high;
the forging and welding combined control arm needs to be subjected to die forging, machining and welding to form a final product. The utilization rate of the forged part material is low, and a final accurate product is formed by a large amount of machining; the special die for forging the part has very large loss and high die cost; the forged piece needs a welding process and a tool and corresponding investment on machining equipment; the large forging piece also needs the investment of large-tonnage special equipment, and the factors cause the production cost of the forging and welding combined pull arm to be higher.
2. The weight is large;
the control arm of the existing forging and welding combination is formed by welding and combining a plurality of parts with simple shapes. A single part needs to meet the requirement of forging die opening direction, is generally of a thick solid structure with a uniform section, and has redundancy in material distribution in terms of stress and rigidity. Furthermore, the stacking of the materials in the welding zones on one another also results in a heavy construction.
3. Weak links of welding heat affected zones exist;
despite the high mechanical properties of the material of the forged body, the entire structural member is a welded assembly. The strength of the welding heat affected zone can only reach about 70% of the strength of the body, and the quality of the welding seam is difficult to detect, so that the welding seam becomes a weak link of the structure.
The production cost can be reduced by adopting the casting process to produce the integrally formed control arm, but the casting material is difficult to reach the material strength of the forged steel, so that the control arm is difficult to meet the bearing requirement of the heavy-duty truck on the control arm. Therefore, the development and design of the integrally cast and formed control arm meeting the bearing requirements and the production feasibility on the basis of casting materials is an important way for reducing the cost, realizing the light weight and improving the structural reliability of the control arm.
In view of the above-mentioned prior art, the applicant of the present invention has made a lot of repeated and beneficial researches, and the final product has obtained effective results and formed the technical solutions to be described below.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a heavy-duty car integrated into one piece control arm to solve the problem that heavy-duty car control arm manufacturing cost among the prior art is high, structural weight is big and there is the weak link in welding heat affected area. The structural form of the integrally cast and formed control arm is provided, on the basis of the strength of the existing casting material, the strength and rigidity requirements of the control arm can be effectively met through reasonable material layout, the light weight is realized, the existence of a welding line is avoided, the investment of the control arm on forging equipment, welding equipment, machining equipment and a special forging die is saved, and the manufacturing cost is reduced.
In order to achieve the above object, the present invention provides the following technical solutions:
an integrated control arm of a heavy truck is used for realizing the connection between a steering knuckle and a frame of the truck;
including a shaft mount portion and a body portion; wherein,
the shaft mount portion includes a first shaft mount and a second shaft mount;
the main body part is of an isosceles trapezoid frame type structure, and comprises a main body which is used as three sides of a trapezoid and has an I-shaped section, and a main shaft seat which is used as the other side and has an annular section; the main body is fixedly connected with the first shaft mounting seat and the second shaft mounting seat respectively, the main shaft seat is arranged at one end of the main body, which is far away from the shaft mounting seat part, and the common axis of the first shaft mounting seat and the second shaft mounting seat is parallel to the axis of the main shaft seat;
at least two reinforcing arms are arranged in the main body part of the isosceles trapezoid frame type structure, so that three stress triangular area structures are formed inside the isosceles trapezoid frame type structure.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
further, the main body comprises a connecting beam, and a first side waist and a second side waist which are respectively arranged at two ends of the connecting beam in a one-to-one correspondence manner;
one ends of the first side waist and the second side waist are respectively connected with the first shaft mounting seat and the second shaft mounting seat in a one-to-one correspondence mode, and the other ends of the first side waist and the second side waist are respectively connected with two side ends of the main shaft seat in a one-to-one correspondence mode.
Furthermore, the two reinforcing arms are respectively and correspondingly arranged between the first side waist and the second side waist and the spindle shaft seat.
Furthermore, the first side waist and the second side waist are respectively provided with first reinforcing ribs in one-to-one correspondence with the first shaft mounting seat and the second shaft mounting seat.
Furthermore, a reinforcing ring rib is arranged at the central part of the spindle shaft seat and corresponds to the reinforcing arm.
Furthermore, the main body is provided with a limit shaft seat.
Further, a second reinforcing rib is arranged between the limiting shaft seat and the main body;
the plane of the second reinforcing rib passes through the central line of the limiting shaft seat and is perpendicular to the supporting plane of the main body, so that stress concentration in a limiting state can be effectively relieved, and structural deformation is reduced.
Furthermore, the limit shaft seat is of a hollow structure.
Furthermore, the joints among the shaft mounting seat part, the main shaft seat, the connecting beam, the first side waist and the second side waist are provided with round transitions with large round corners, so that local stress concentration can be relieved.
The utility model has the advantages of as follows:
the structural form of the integrally cast control arm provided by the technical scheme realizes light weight, avoids welding seams and improves the structural stability compared with the traditional forged and welded control arm on the premise of meeting the requirements of strength and rigidity of the control arm; meanwhile, the investment of the control arm on forging equipment, welding equipment, machining equipment and a special forging die is saved, and the manufacturing cost is reduced.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and the structures, proportions, sizes, etc. shown in the present specification are only used to match the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and any modifications of the structures, changes of the proportion relations, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the functions and the achievable objects of the present invention.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic top view of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the embodiment of the present invention at D-D;
fig. 4 is a schematic cross-sectional view of the embodiment of the present invention taken along line E-E.
In the drawings, the components represented by the respective reference numerals are listed below:
the main shaft comprises a first shaft mounting seat 1, a second shaft mounting seat 2, a main body 3, a main shaft seat 4, a connecting beam 5, a first side waist 6, a second side waist 7, a reinforcing arm 8, a reinforcing ring rib 9, a first reinforcing rib 10, an opening 11, a second reinforcing rib 12 and a limiting shaft seat 13.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the embodiment of the utility model provides a heavy-duty car integrated into one piece control arm, this heavy-duty car integrated into one piece control arm wholly be isosceles trapezoid frame rack structure, and the inside three atress triangle district structure that has of trapezoidal frame to on structure lightweight's basis, promoted stability. The specific settings are as follows:
the heavy-duty car integrated into one piece control arm, including integrated into one piece's axle mount pad part and main part, wherein axle mount pad part includes first axle mount pad 1 and second axle mount pad 2, the main part is isosceles trapezoid frame rack structure, and isosceles trapezoid frame rack structure the main part includes respectively as trapezoidal three limit and for I-shaped cross section's main part 3, and as another limit and for annular cross section's main shaft axle bed 4, I-shaped cross section's main part 3 can be used to undertake axle mount pad part and main shaft axle bed 4 to the moment of flexure load in the control arm plane, makes the control arm can satisfy with less material weight and undertakes moment of flexure load.
The main body 3 is fixedly connected with the first shaft mounting seat 1 and the second shaft mounting seat 2 respectively, the main shaft seat 4 is arranged at one end of the main body 3 far away from the shaft mounting seat part, and the common axis of the first shaft mounting seat 1 and the second shaft mounting seat 2 is parallel to the axis of the main shaft seat 4.
Specifically, the main body 3 includes a connecting beam 5 which is located close to one side of the shaft mounting seat part and serves as a trapezoid bottom edge, and a first side waist 6 and a second side waist 7 which serve as two trapezoid waists are correspondingly arranged at two ends of the connecting beam one to one, one ends of the first side waist 6 and the second side waist 7 are correspondingly connected with the first shaft mounting seat 1 and the second shaft mounting seat 2 one to one, the other ends of the first side waist 6 and the second side waist 7 are correspondingly connected with two side ends of the main shaft seat 4 one to one, and the joints among the shaft mounting seat part, the main shaft seat 4, the connecting beam 5, the first side waist 6 and the second side waist 7 are provided with round transitions with large round corners, so that local stress concentration can be relieved.
Referring to fig. 2, a reinforcing arm 8 is disposed between each of the first side waist 6 and the second side waist 7 and the spindle shaft seat 4, so that two stress triangular areas are formed between each of the first side waist 6 and the second side waist 7, which are two trapezoidal waists, and the spindle shaft seat 4, which is a trapezoidal bottom side, respectively, and another stress triangular area is formed between each of the reinforcing arms 8 and the connecting beam 5, which is more favorable for resisting a transverse load generated when a misalignment occurs between the shaft mounting seat portion and the spindle shaft seat 4 along the axial direction, so that the control arm structure can obtain higher rigidity; and because the reinforcing arm 8 extends to the main shaft seat 4 through the wing plates of the I-shaped beams of the first side waist 6 and the second side waist 7, the arrangement can also help bear the bending moment load in the plane of the control arm, so that the structure has lighter weight and the overall weight is reduced.
Preferably, referring to fig. 3, first reinforcing ribs 10 are respectively and correspondingly arranged between the first side waist 6 and the second side waist 7 and between the first shaft mounting seat 1 and the second shaft mounting seat 2, so as to effectively relieve stress concentration caused by transmission of shaft seat load, and improve functional practicability.
Referring to fig. 1 and 4, the two end shaft bases of the spindle shaft base 4 are respectively used for connecting two external spindles, and an opening 11 and a reinforcing ring rib 9 are arranged in the middle of the spindle shaft base 4, and the reinforcing ring rib 9 corresponds to the reinforcing arm 8 in position and is used for effectively bearing the load transmitted by the reinforcing arm 8, so that the structure obtains sufficient rigidity and strength; at the same time, since the intermediate part has no part-mounting surface function, the wall thickness can be reduced and the opening 11 can be provided for lighter structural mass.
As a preferable solution of this embodiment, please refer to fig. 1, the main body 3 is further provided with a limit shaft seat 13 to ensure that the control arm does not exceed the allowable working position under any limit working condition.
Further preferably, a second reinforcing rib 12 is arranged between the limiting shaft seat 13 and the main body 3, and a plane of the second reinforcing rib 12 passes through a central line of the limiting shaft seat 13 and is perpendicular to a supporting plane of the main body 3, so that stress concentration in a limiting state can be effectively relieved, and structural deformation is reduced.
More preferably, the center of the limiting shaft seat 13 is of a hollow structure, so that the limiting function is guaranteed, weight reduction can be realized, and functional practicability is greatly improved.
When the control arm is used, the control arm is integrally formed by using a cast steel material and integrally casting by using an investment mold; the material used can be, but is not limited to, aluminum alloy.
The first shaft mounting seat 1 and the second shaft mounting seat 2 are connected with a steering knuckle of a vehicle, and the main shaft seat 4 is connected with a frame of the vehicle.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a heavy-duty car integrated into one piece control arm which characterized in that: including a shaft mount portion and a body portion; wherein,
the shaft mount portion includes a first shaft mount and a second shaft mount;
the main body part is of an isosceles trapezoid frame type structure, and comprises a main body which is used as three sides of a trapezoid and has an I-shaped section, and a main shaft seat which is used as the other side and has an annular section; the main body is fixedly connected with the first shaft mounting seat and the second shaft mounting seat respectively, the main shaft seat is arranged at one end of the main body, which is far away from the shaft mounting seat part, and the common axis of the first shaft mounting seat and the second shaft mounting seat is parallel to the axis of the main shaft seat;
at least two reinforcing arms are arranged in the main body part of the isosceles trapezoid frame type structure, so that three stress triangular area structures are formed inside the isosceles trapezoid frame type structure.
2. The integrally formed control arm for a heavy-duty vehicle as claimed in claim 1, wherein said main body includes a connection beam and first and second lateral waists respectively disposed at both ends of said connection beam in one-to-one correspondence;
one ends of the first side waist and the second side waist are respectively connected with the first shaft mounting seat and the second shaft mounting seat in a one-to-one correspondence mode, and the other ends of the first side waist and the second side waist are respectively connected with two side ends of the main shaft seat in a one-to-one correspondence mode.
3. The integrally formed control arm as claimed in claim 2, wherein two of said reinforcing arms are respectively disposed between said first side waist and said second side waist and said spindle shaft seat.
4. The integrally formed control arm as claimed in claim 2, wherein first ribs are disposed between said first side waist and said second side waist and said first shaft mounting seat and said second shaft mounting seat respectively in a one-to-one correspondence.
5. The integrally formed control arm as claimed in claim 1, wherein a reinforcing ring rib is disposed at a central portion of the spindle seat, and the reinforcing ring rib corresponds to the reinforcing arm.
6. The integrally formed control arm as claimed in claim 1, wherein said main body is provided with a limit shaft seat.
7. The integrally formed control arm as claimed in claim 6, wherein a second stiffener is disposed between said limit shaft seat and said main body;
the plane of the second reinforcing rib passes through the central line of the limiting shaft seat and is perpendicular to the supporting plane of the main body, so that stress concentration in a limiting state can be effectively relieved, and structural deformation is reduced.
8. The integrally formed control arm as claimed in claim 6, wherein said limit shaft seat is hollow.
9. The integrally formed control arm as claimed in claim 1, wherein the joints between said axle mounting seat portion, said spindle axle seat, said connecting beam, said first side waist and said second side waist are rounded to relieve local stress concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020579530.7U CN212194980U (en) | 2020-04-17 | 2020-04-17 | Integrated control arm of heavy-duty car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020579530.7U CN212194980U (en) | 2020-04-17 | 2020-04-17 | Integrated control arm of heavy-duty car |
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| CN212194980U true CN212194980U (en) | 2020-12-22 |
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| CN202020579530.7U Active CN212194980U (en) | 2020-04-17 | 2020-04-17 | Integrated control arm of heavy-duty car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516444A (en) * | 2020-04-17 | 2020-08-11 | 苏氏精密制造技术（北京）股份有限公司 | Integrated control arm of heavy-duty car and manufacturing method thereof |
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2020
- 2020-04-17 CN CN202020579530.7U patent/CN212194980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516444A (en) * | 2020-04-17 | 2020-08-11 | 苏氏精密制造技术（北京）股份有限公司 | Integrated control arm of heavy-duty car and manufacturing method thereof |
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