CN117231667A - Light-weight enhanced type strut shock absorber connecting piece structure - Google Patents
Light-weight enhanced type strut shock absorber connecting piece structure Download PDFInfo
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- CN117231667A CN117231667A CN202311365398.4A CN202311365398A CN117231667A CN 117231667 A CN117231667 A CN 117231667A CN 202311365398 A CN202311365398 A CN 202311365398A CN 117231667 A CN117231667 A CN 117231667A
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- China
- Prior art keywords
- metal
- sleeve
- shock absorber
- connecting piece
- strut
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 36
- 230000035939 shock Effects 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 69
- 229910052751 metal Inorganic materials 0.000 claims abstract description 69
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 238000004073 vulcanization Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000013016 damping Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention discloses a light-weight enhanced type strut shock absorber connecting piece structure, which comprises a metal framework, wherein knurled bolts are respectively arranged at two ends of the metal framework, a positioning and mounting groove is arranged between the two ends of the metal framework, a composite inner sleeve is sleeved in the positioning and mounting groove, a rubber sleeve is sleeved outside the composite inner sleeve, a metal outer sleeve is sleeved outside the rubber sleeve, and the composite inner sleeve comprises a metal layer and a nonmetal layer which are coupled through injection molding; the invention optimizes the structure of the integral metal framework in the traditional strut damper connecting piece, reduces the weight of the strut damper connecting piece and obviously improves the axial rigidity of the strut damper connecting piece.
Description
Technical Field
The invention belongs to the technical field of vehicle strut shock absorbers, and relates to a lightweight reinforced strut shock absorber connecting piece structure.
Background
The shock absorber can attenuate the impact of road surface to the vehicle, absorbs the vibrations that produce when jolting rapidly, makes the running state of vehicle remain stable. The cylinder type shock absorber is one of the most widely used types of shock absorbers for vehicles at present, and is classified into a strut shock absorber capable of supporting an outer spring of a vehicle body and a pure cylinder type shock absorber which cannot support a vehicle body alone and needs a plate spring or a coil spring of the vehicle body to support the vehicle body.
The existing strut damper connecting piece is generally formed by sleeving a rubber sleeve on the outer side of an integral metal framework, and the rubber sleeve is contacted with the end part of a piston rod of a damping cylinder so as to buffer energy dissipation of vibration. However, the weight of the overall metal skeleton inside the existing strut shock absorber attachment is large, which increases the overall weight of the strut shock absorber. Meanwhile, the vulcanizing property of the whole metal framework inside the existing strut shock absorber connecting piece is poor, so that the axial rigidity of a buffer structure formed after the whole metal framework is vulcanized and coupled with the rubber sleeve is insufficient, and once the strut shock absorber connecting piece receives larger axial external force, the strut shock absorber connecting piece is axially deformed.
Therefore, the invention discloses a lightweight reinforced type strut damper connecting piece structure, which aims at the defects of heavy weight and insufficient axial rigidity of the existing strut damper connecting piece with an integral metal framework.
Disclosure of Invention
The invention aims to provide a lightweight reinforced type strut damper connecting piece structure, which optimizes the structure of an integral metal framework in the traditional strut damper connecting piece, reduces the weight of the strut damper connecting piece and obviously improves the axial rigidity of the strut damper connecting piece.
The invention is realized by the following technical scheme:
the utility model provides a lightweight enhancement mode strut shock absorber connecting piece structure, includes metal skeleton, metal skeleton's both ends are provided with the annular knurl bolt respectively, be provided with the location mounting groove between metal skeleton's the both ends, the cover is equipped with compound endotheca in the location mounting groove, the outside cover of compound endotheca is equipped with the rubber sleeve, the outside cover of rubber sleeve is equipped with the metal overcoat, compound endotheca includes the metal level and the non-metal level of coupling of moulding plastics.
Compared with the traditional pure metal inner sleeve, the composite inner sleeve is better in vulcanization performance through the coupling metal layer and the nonmetal layer and through the introduction of nonmetal materials, the composite inner sleeve and the rubber sleeve are guaranteed to be integrally connected in vulcanization, and further the axial rigidity of the shock absorber connecting piece is improved to be more than 10KN/mm, and is far higher than that of the traditional shock absorber connecting piece of the pure metal inner sleeve. Meanwhile, the traditional pure metal inner sleeve is improved into a structure of injection coupling of a metal layer and a nonmetal layer, so that the weight of the shock absorber connecting piece can be reduced while the axial rigidity is improved, and the light weight optimization of the shock absorber connecting piece is realized. The outer side of the rubber sleeve is integrally sleeved with a metal outer sleeve in a vulcanization mode, the outer side face of the metal outer sleeve is abutted against the end head of a piston rod of the shock absorber oil cylinder, and the rubber sleeve and the composite inner sleeve are protected.
In order to better realize the invention, the metal layer comprises a 40Cr metal sleeve, and a nonmetallic layer is arranged on the outer side of the 40Cr metal sleeve in an injection molding coupling sleeve.
To better practice the invention, further, the nonmetallic layer comprises a mildly coupled nylon layer and a fiberglass layer.
In order to better realize the invention, further, two ends of the positioning mounting groove are provided with positioning flanges, the outer sides of the positioning flanges are provided with at least one anti-rotation plane, and the inner hole surface of the composite inner sleeve is matched with the anti-rotation plane.
In order to better realize the invention, further, the inner hole surface of the rubber sleeve is connected with the outer vulcanization coupling of the composite inner sleeve, and the outer side surface of the rubber sleeve is connected with the inner hole surface of the metal outer sleeve in a vulcanization coupling manner.
In order to better realize the invention, further, the outer side surface of the metal jacket is provided with an anti-corrosion coating.
In order to better realize the invention, the anti-corrosion coating is a zinc-nickel coating.
In order to better realize the invention, further, the root part of the stud of the knurled bolt, which is close to one end of the nut, is provided with an annular packing groove.
Compared with the prior art, the invention has the following advantages:
according to the invention, the integral metal framework in the traditional strut damper connecting piece is arranged into a split coupling structure of the metal framework and the composite inner sleeve, and the composite inner sleeve is obtained by adopting injection coupling of the metal layer and the nonmetal layer, so that the vulcanizing property of the composite inner sleeve is effectively improved while the weight of the strut damper connecting piece is reduced, the composite inner sleeve can be more tightly and firmly coupled with the rubber sleeve, and the axial rigidity of the strut damper connecting piece is further remarkably improved.
Drawings
FIG. 1 is a schematic illustration of the installation of a strut shock absorber attachment to a vehicle body;
FIG. 2 is a schematic cross-sectional structural view of a strut shock absorber attachment;
FIG. 3 is a schematic exterior structural view of a strut shock absorber attachment;
FIG. 4 is a schematic perspective view of a strut shock absorber attachment;
FIG. 5 is a schematic structural view of a metal skeleton;
fig. 6 is a schematic structural view of a knurled bolt.
Wherein: 1-a metal framework; 2-knurled bolts; 3-positioning the mounting groove; 4-a composite inner sleeve; 5-rubber sleeve; 6-metal jacket; 7-an annular packing groove; 31-positioning the flange.
Detailed Description
The following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the invention clearly indicates otherwise, and it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
For convenience of description, the words "upper", "lower", "left" and "right" in the present invention, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings per se, and do not limit the structure, only for convenience of description and simplification of the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "mounted," "connected," "secured," and the like are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral body, for example; the terms are used herein as specific meanings as understood by those of ordinary skill in the art, and are not limited to the following terms.
Example 1:
the light-weight enhanced strut shock absorber connecting piece structure of the embodiment, as shown in fig. 1-4, comprises a metal framework 1, knurled bolts 2 are respectively arranged at two ends of the metal framework 1, a positioning and mounting groove 3 is arranged between two ends of the metal framework 1, a composite inner sleeve 4 is sleeved in the positioning and mounting groove 3, a rubber sleeve 5 is sleeved outside the composite inner sleeve 4, a metal outer sleeve 6 is sleeved outside the rubber sleeve 5, and the composite inner sleeve 4 comprises a metal layer and a nonmetal layer which are coupled through injection molding.
The composite inner sleeve 4 is sleeved in the positioning and mounting groove 3, and the composite inner sleeve 4 is axially positioned through the positioning and mounting groove 3, so that the axial movement of the composite inner sleeve 4 is avoided. The composite inner sleeve 4 comprises an injection-coupled metal layer and a nonmetal layer, wherein the nonmetal layer is prepared by coupling a PA66 material and a GF50 material, and the mass ratio of the nonmetal layer in the whole composite inner sleeve 4 is more than or equal to 30%.
The rubber sleeve 5 is sleeved outside the composite inner sleeve 4, and the contact coupling area between the rubber sleeve 5 and the composite inner sleeve 4 accounts for more than or equal to 90% of the outer surface area of the composite inner sleeve 4. The rubber sleeve 5 is connected with the composite inner sleeve 4 in a vulcanization coupling way, the outer side of the rubber sleeve 5 is sleeved with the metal outer sleeve 6, the metal outer sleeve 6 is required to completely cover the outer side surface of the rubber sleeve 5, and the metal outer sleeve 6 is connected with the rubber sleeve 5 in a vulcanization coupling way.
By introducing a nonmetallic layer into the composite inner sleeve 4, the vulcanization performance of the composite inner sleeve 4 is further improved, so that the axial rigidity of the strut shock absorber connecting piece is obviously improved from the axial rigidity of the traditional all-metal inner sleeve to the axial rigidity of more than or equal to 10KN/mm, and the axial impact resistance of the strut shock absorber connecting piece using the composite inner sleeve 4 is obviously improved. Meanwhile, a part of non-metal layers are adopted to replace metal materials, so that the weight of the strut damper connecting piece is greatly reduced, the weight of the strut damper connecting piece is reduced from the weight of a traditional all-metal inner sleeve 879g to the weight of 640g, and the axial strength of the strut damper connecting piece is increased and the weight is reduced and optimized.
Further, the metal jacket 6 is prepared from 20# steel.
Example 2:
the light-weight enhanced strut shock absorber connecting piece structure is improved on the basis of the embodiment 1, the metal layer comprises a 40Cr metal sleeve, and a nonmetal layer is arranged on the outer side of the 40Cr metal sleeve in an injection molding coupling sleeve.
The 40Cr metal sleeve is prepared from a 40Cr material, a nonmetallic layer is formed by injection-molding and coupling the outer side of the 40Cr metal sleeve to form a composite structure, the ratio of the mass of the nonmetallic layer in the whole composite inner sleeve 4 is more than or equal to 30%, and the composite inner sleeve 4 is ensured to have excellent enough vulcanization performance to be in vulcanization coupling with the rubber sleeve 5.
The nonmetallic layer comprises a nylon layer and a glass fiber layer which are in mixing coupling.
Other portions of this embodiment are the same as those of embodiment 1, and thus will not be described in detail.
Example 3:
the light-weight enhanced strut shock absorber connecting piece structure of the embodiment is improved on the basis of embodiment 1 or 2, as shown in fig. 5, positioning flanges 31 are arranged at two ends of the positioning mounting groove 3, at least one anti-rotation plane is arranged on the outer side of the positioning flanges 31, and an inner hole surface of the composite inner sleeve 4 is matched with the anti-rotation plane.
The coupling plane matched with the anti-rotation plane is arranged on the inner hole wall of the composite inner sleeve 4, and the circumferential limit is further carried out on the composite inner sleeve 4 through the matching of the anti-rotation plane and the coupling plane, so that the circumferential rotation of the composite inner sleeve 4 is avoided. Meanwhile, the positioning flanges 31 at the two ends of the positioning mounting groove 3 are used for axially limiting the composite inner sleeve 4, so that the composite inner sleeve 4 is prevented from axially moving, and finally, the stability of the strut damper connecting piece in the use process is ensured.
Further, the metal framework 1 is symmetrically provided with mounting lugs at the left end and the right end of the positioning mounting groove 3, and the mounting lugs are provided with through holes for mounting the knurled bolts 2.
Other portions of this embodiment are the same as those of embodiment 1 or 2, and thus will not be described in detail.
Example 4:
the light-weight reinforced strut damper connecting piece structure of the embodiment is improved on the basis of any one of embodiments 1-3, an anti-corrosion coating is arranged on the outer side face of the metal outer sleeve 6, the metal outer sleeve 6 is used for protecting the rubber sleeve 5 and the composite inner sleeve 4 inside the metal outer sleeve 6, and the metal outer sleeve 6 is directly subjected to the impact of a damping cylinder push rod, so that corrosion abrasion of the metal outer sleeve 6 after long-time use is avoided, and the anti-corrosion coating is arranged outside the metal outer sleeve 6, wherein the thickness of the anti-corrosion coating is greater than or equal to 1mm.
Further, the anti-corrosion coating is a zinc-nickel coating.
Other portions of this embodiment are the same as any of embodiments 1 to 3, and thus will not be described in detail.
Example 5:
the light-weight enhanced strut damper connecting piece structure of the embodiment is improved on the basis of any one of the embodiments 1-4, as shown in fig. 6, an annular packing groove 7 is formed in the root portion, close to one end of a nut, of a stud of a knurled bolt 2, the annular packing groove 7 is formed in the root portion, close to one end of the nut, of the stud of the knurled bolt 2, so that knurled materials which are subjected to riveting falling can enter the annular packing groove 7 when the knurled bolt 2 is riveted on a vehicle body, the falling knurled materials are prevented from being stuffed between the end face of the nut and the surface of the vehicle body, the end face of the nut and the surface of the vehicle body are further guaranteed to be mounted in a tight fit, and the situation that the knurled bolt 2 is loosened and falls off after riveting is effectively avoided.
Other portions of this embodiment are the same as any of embodiments 1 to 4, and thus will not be described in detail.
The above is only a preferred embodiment of the present invention, and the present invention is not limited in any way, and any simple modification and equivalent changes of the above embodiments according to the technical substance of the present invention fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a lightweight enhancement mode strut shock absorber connecting piece structure, includes metal skeleton (1), the both ends of metal skeleton (1) are provided with knurl bolt (2) respectively, a serial communication port, be provided with location mounting groove (3) between the both ends of metal skeleton (1), the cover is equipped with compound endotheca (4) in location mounting groove (3), the outside cover of compound endotheca (4) is equipped with rubber sleeve (5), the outside cover of rubber sleeve (5) is equipped with metal overcoat (6), compound endotheca (4) are including the metal level and the non-metal level of injection coupling.
2. The lightweight reinforced strut shock absorber connection structure according to claim 1, wherein said metal layer comprises a 40Cr metal sleeve, and said 40Cr metal sleeve is provided with a non-metal layer on the outside of the injection molded coupling sleeve.
3. A lightweight reinforced strut shock absorber connection structure according to claim 2, wherein said non-metallic layer comprises a hybrid coupled nylon layer and a fiberglass layer.
4. A lightweight reinforced strut damper connecting piece structure according to claim 3, wherein positioning flanges (31) are provided at two ends of the positioning mounting groove (3), at least one anti-rotation plane is provided on the outer side of the positioning flanges (31), and the inner hole surface of the composite inner sleeve (4) is matched with the anti-rotation plane.
5. A lightweight reinforced strut damper connection structure as in any one of claims 1-4, wherein the inner bore surface of the rubber sleeve (5) is in vulcanized coupling connection with the outer portion of the composite inner sleeve (4), and the outer side surface of the rubber sleeve (5) is in vulcanized coupling connection with the inner bore surface of the metal outer sleeve (6).
6. A lightweight reinforced strut shock absorber connection structure according to claim 5, wherein the outer side of the metal jacket (6) is provided with an anti-corrosion coating.
7. The lightweight enhanced strut shock absorber connection structure according to claim 6, wherein said corrosion protection coating is a zinc nickel coating.
8. A lightweight reinforced strut shock absorber connection as in any one of claims 1-4, wherein the root of the stud of the knurled bolt (2) near one end of the nut is provided with an annular packing groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311365398.4A CN117231667A (en) | 2023-10-20 | 2023-10-20 | Light-weight enhanced type strut shock absorber connecting piece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311365398.4A CN117231667A (en) | 2023-10-20 | 2023-10-20 | Light-weight enhanced type strut shock absorber connecting piece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117231667A true CN117231667A (en) | 2023-12-15 |
Family
ID=89086084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311365398.4A Pending CN117231667A (en) | 2023-10-20 | 2023-10-20 | Light-weight enhanced type strut shock absorber connecting piece structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117231667A (en) |
-
2023
- 2023-10-20 CN CN202311365398.4A patent/CN117231667A/en active Pending
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