CN221273196U - Novel steering knuckle mounting structure with steel sleeve - Google Patents
Novel steering knuckle mounting structure with steel sleeve Download PDFInfo
- Publication number
- CN221273196U CN221273196U CN202323342123.7U CN202323342123U CN221273196U CN 221273196 U CN221273196 U CN 221273196U CN 202323342123 U CN202323342123 U CN 202323342123U CN 221273196 U CN221273196 U CN 221273196U
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- Prior art keywords
- bushing
- lug
- knuckle
- mounting
- steering knuckle
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 12
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- Vehicle Body Suspensions (AREA)
Abstract
The utility model relates to the technical field of automobile chassis, and discloses a novel steering knuckle mounting structure with a steel sleeve. The two steel bushings are oppositely pressed on the double lug plates of the connecting lug, the flange surface of the steel bushing is higher than the mounting surface of the lug plate, and the flange surface of the steel bushing is contacted with the inner pipe of the control arm bushing to provide a mounting foundation; the strength of the steel bushing is higher than that of the aluminum alloy steering knuckle body, and the steel bushing is pressed on the steering knuckle lug at the matching position of the end face of the control arm bushing by utilizing the compression resistance characteristic of the steel bushing, so that crushing is avoided.
Description
Technical Field
The utility model relates to the technical field of automobile chassis, in particular to a novel steering knuckle mounting structure with a steel sleeve.
Background
The rear suspension knuckle is a tie for connecting the rear wheel and the control arm, the knuckle provides installation and connection support for peripheral parts such as a bearing, the control arm and the like, and the structural strength of the knuckle is high. In recent years, due to the requirement of light weight, aluminum alloy is increasingly applied to chassis structural members, and aluminum alloy products have the advantages of light structure, difficult rust corrosion and the like, but the strength of the aluminum alloy products is weaker than that of cast iron. The knuckle connecting bushing is fastened through bolts and nuts, the inner surface of the lug at the connecting position of the aluminum alloy knuckle can be subjected to larger extrusion external force under the action of fastening force, and the risk of crushing exists, so that the lug is cracked and connected to fail, and the running safety of a vehicle is endangered.
If the strength of the lug of the aluminum steering knuckle is to be improved, the thickness of the lug is generally increased and the root of the lug is reinforced in the traditional scheme, but the improvement effect of the method is very small and is limited by the requirements of peripheral space and light weight, and too much body material cannot be added for reinforcement. Therefore, the knuckle generally cannot adopt a cast aluminum scheme, but can only adopt a traditional cast iron scheme, so that unsprung mass is greatly increased, vehicle dynamics performance is deteriorated, and oil consumption is increased.
Disclosure of utility model
The utility model aims to provide a novel steering knuckle mounting structure with a steel sleeve, which solves the problem that the joint surface of a steering knuckle lug is crushed and invalid during fastening.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:
a novel steering knuckle mounting structure with a steel sleeve, comprising:
The steering knuckle 100 comprises a steering knuckle body 110, wherein a connecting lug 120 is arranged on the periphery of the steering knuckle body 110, the connecting lug 120 is of a double-lug structure formed by two lugs 121, first mounting holes 122 are formed in opposite side surfaces of the two lugs 121, second mounting holes 123 are formed in side surfaces facing away from each other, the diameter of the first mounting holes 122 is larger than that of the second mounting holes 123, and the two mounting holes are concentric and communicated;
The bushing 200 comprises a bushing body 210, wherein the bushing body 210 is provided with an inner cavity 211 which axially penetrates through the bushing body, and one end of the bushing body is also provided with a flange 220 to form a T-shaped structure;
Two lugs 121 of the connecting lug 120 are respectively provided with one bushing 200, the two bushings 200 on the lugs 121 are symmetrically arranged, the bushing body 210 is connected with the first mounting hole 122 in an interference fit manner, and the flange 220 is lapped on the surface of the lug 121.
Further, the knuckle 100 is an aluminum knuckle.
Further, the bushing 200 is a steel bushing.
Further, a gap 124 is left between the end surface of the bushing body 210 inserted into one end of the first mounting hole 122 and the bottom surface of the first mounting hole 122.
Further, the interference between the bushing body 210 and the first mounting hole 122 is 0.04-0.08 mm.
Further, the diameter of the inner cavity 211 is the same as the diameter of the second mounting hole 123.
Further, three of the connecting lugs 120 are provided at the periphery of the knuckle body 110.
Further, a single connecting lug 130 is further provided on the periphery of the knuckle body 110, the single connecting lug 130 is provided with a mounting hole identical to that of the lug 121, and the bushing 200 is assembled in the same manner as that of the lug 121 for assembling the bushing 200.
Compared with the prior art, the utility model has the beneficial effects that:
According to the novel steering knuckle mounting structure with the steel sleeve, through the design of mixing steel and aluminum materials, the advantages of remarkable light weight effect of an aluminum alloy product and high strength of the steel product are combined, the steering knuckle is made of the aluminum alloy material, the reinforced steel bushing is pressed at the position of the bolt connection part subjected to larger contact stress, and the steel bushing is in interference fit with the steering knuckle body of the aluminum alloy, so that the assembly is simple.
According to the novel steering knuckle mounting structure with the steel sleeve, the two steel bushings are oppositely pressed on the double lug plates of the connecting lug, the flange surface of the steel bushing is higher than the mounting surface of the lug plate, and the flange surface of the steel bushing is in contact with the inner pipe of the control arm bushing, so that a mounting foundation is provided for the steel bushing; the compressive strength of the steel material is far greater than that of the aluminum alloy, the strength of the steel bushing is higher than that of the aluminum alloy steering knuckle body, the steel bushing is pressed on the steering knuckle lug at the matching position of the end face of the control arm bushing by utilizing the characteristic of compressive resistance, the compressive strength of the steering knuckle lug is greatly improved, and the problem of crushing failure of the matching surface is effectively avoided.
According to the novel steering knuckle mounting structure with the steel sleeve, the scheme that the steel bushing is pressed at the lug is adopted, so that the lug structure can be designed to be lighter and thinner, only the stress condition of the root of the lug when bearing different calculation working conditions is considered, the steering knuckle body only needs to meet the strength requirement, the strength of the contact position is not needed to be considered, further thickening and reinforcing are not needed, and the light weight effect is obvious.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a novel steel jacketed knuckle mounting structure in one embodiment;
FIG. 2 is a side view of a novel steel jacketed knuckle mounting structure in one embodiment;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is a cross-sectional view of a tab in one embodiment;
100. Knuckle, 110, knuckle body, 120, connecting lugs, 121, tabs, 122, first mounting holes, 123, second mounting holes, 124, clearance, 130, single connecting lugs;
200. The bushing comprises a bushing body 210, a bushing body 211, an inner cavity 220 and a flange.
Detailed Description
For the purpose of promoting an understanding of the principles and advantages of embodiments of the utility model, reference will now be made in detail to the drawings, in which it is apparent that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the present embodiment provides a novel steering knuckle mounting structure with a steel sleeve, comprising: knuckle 100 and bushing 200.
The steering knuckle 100 is an aluminum steering knuckle and comprises a steering knuckle body 110, three connecting lugs 120 are arranged on the periphery of the steering knuckle body 110, each connecting lug 120 is of a double-lug structure formed by two lugs 121, a first mounting hole 122 is formed in the opposite side faces of the lugs 121, a second mounting hole 123 is formed in the opposite side faces of the lugs 121, the diameter of the first mounting hole 122 is larger than that of the second mounting hole 123, the two mounting holes are concentric and are communicated, one bushing 200 is assembled on each lug 121, and the two bushings 200 on the lugs 121 are oppositely arranged.
The periphery of the knuckle body 110 is further provided with a single connecting lug 130, the single connecting lug 230 is unidirectionally pressed with one bushing 200, the single connecting lug 130 is provided with a mounting hole identical to that of the lug 121, and the bushing 200 is assembled in the same manner as that of the lug 121.
The bushing 200 is a steel bushing, and includes a bushing body 210, where the bushing body 210 has an inner cavity 211 that penetrates axially, and one end of the bushing body is further provided with a flange 220, so as to form a T-shaped structure.
The two bushings 200 on each connecting lug 120 are symmetrically pressed and connected on the inner sides of the two lugs 121 through interference fit between the bushing body 210 and the first mounting hole 122, and the flange 220 is lapped on the surface of the lug 121.
To avoid the risk of the bushing 200 coming out during use, a minimum pressing force of 10kN is required, and to ensure this pressing force requirement, the interference between the bushing body 210 and the first mounting hole 122 is 0.04-0.08 mm.
The bushing body 210 is inserted into the end surface of one end of the first mounting hole 122 and the bottom surface of the first mounting hole 122, and a gap 124 is left between them.
The inner cavity 211 has a diameter in communication with the second mounting hole 123 and is the same diameter for passing a fastening bolt.
The novel steering knuckle mounting structure with steel sleeve provided in the embodiment has the working principle that:
The three connection lugs 120 and one single connection lug 130 on the knuckle body 110 are respectively used for connecting different control arms, and through finite element analysis, the compressive stress of the connection part of the two connection lugs 120 for connecting the small connecting rod and the trapezoid arm and the connection part of the single connection lug 130 for connecting the toe-in arm is too large, so that reinforcement is required.
For the three joints, combining the different connection forms, three groups of bushings 200 are provided: the two bushings 200 are pressed on opposite sides of the two lugs 121 of the connecting lug 120, the end face of the flange 220 of the bushing 200 is higher than the mounting face of the lug 121, and the end face of the flange 220 of the bushing 200 is contacted with the bushing inner tube of the control arm, so that the mounting base of the bushing is provided, the compressive strength of the steel bushing 200 is higher than that of the knuckle 100 of aluminum alloy because the compressive strength of the steel material is far higher than that of the aluminum alloy, the bushing 200 is pressed on the matching position of the lug 121 and the bushing end face in the control arm by utilizing the characteristic of compressive resistance of the bushing 200, the compressive strength of the lug 121 is greatly improved, and the problem of crushing failure of the matching surface is effectively avoided.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. Novel take steel bushing knuckle mounting structure, its characterized in that includes:
The steering knuckle (100) comprises a steering knuckle body (110), wherein a connecting lug (120) is arranged on the periphery of the steering knuckle body (110), the connecting lug (120) is of a double-lug structure consisting of two lugs (121), first mounting holes (122) are formed in opposite side surfaces of the two lugs (121), second mounting holes (123) are formed in opposite side surfaces, and the diameters of the first mounting holes (122) are larger than those of the second mounting holes (123), and the first mounting holes and the second mounting holes are concentric and communicated;
The bushing (200) comprises a bushing body (210), wherein the bushing body (210) is provided with an inner cavity (211) which axially penetrates through, and one end of the bushing body is also provided with a flange (220) to form a T-shaped structure;
Two lug pieces (121) of the connecting lug (120) are respectively provided with one bushing (200), the two bushing (200) on the lug pieces (121) are symmetrically arranged, the bushing body (210) is connected with the first mounting hole (122) in an interference fit manner, and the flange (220) is lapped on the surface of the lug piece (121).
2. A novel steel jacketed knuckle mounting structure in accordance with claim 1, wherein the knuckle (100) is an aluminum knuckle.
3. A novel steel jacketed knuckle mounting structure in accordance with claim 2, characterized in that said bushing (200) is a steel bushing.
4. The novel steering knuckle mounting structure with steel sleeve of claim 1, wherein a gap (124) is left between an end surface of one end of the bushing body (210) inserted into the first mounting hole (122) and a bottom surface of the first mounting hole (122).
5. The novel steel jacketed knuckle mounting structure of claim 1, wherein the interference between the bushing body (210) and the first mounting hole (122) is 0.04-0.08 mm.
6. The novel steel jacketed knuckle mounting structure of claim 1, wherein the diameter of the inner cavity (211) is the same as the diameter of the second mounting hole (123).
7. The novel steel jacketed knuckle mounting structure of claim 1, wherein three of the connecting lugs (120) are provided on the periphery of the knuckle body (110).
8. The novel steering knuckle mounting structure with steel sleeve according to claim 7, wherein a single connecting lug (130) is further arranged on the periphery of the steering knuckle body (110), the single connecting lug (130) is provided with a mounting hole identical to that of the lug (121), and is provided with a bushing (200) in the same manner as that of the lug (121) for mounting the bushing (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323342123.7U CN221273196U (en) | 2023-12-08 | 2023-12-08 | Novel steering knuckle mounting structure with steel sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323342123.7U CN221273196U (en) | 2023-12-08 | 2023-12-08 | Novel steering knuckle mounting structure with steel sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221273196U true CN221273196U (en) | 2024-07-05 |
Family
ID=91705141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323342123.7U Active CN221273196U (en) | 2023-12-08 | 2023-12-08 | Novel steering knuckle mounting structure with steel sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221273196U (en) |
-
2023
- 2023-12-08 CN CN202323342123.7U patent/CN221273196U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |