CN210769965U - Multi-leaf spring assembly of semitrailer with gradually-changed rigidity - Google Patents
Multi-leaf spring assembly of semitrailer with gradually-changed rigidity Download PDFInfo
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- CN210769965U CN210769965U CN201921283172.9U CN201921283172U CN210769965U CN 210769965 U CN210769965 U CN 210769965U CN 201921283172 U CN201921283172 U CN 201921283172U CN 210769965 U CN210769965 U CN 210769965U
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Abstract
The utility model discloses a semitrailer multi-leaf spring assembly with gradually changing rigidity, which comprises a thin sheet main spring and a thick sheet auxiliary spring which are distributed up and down, wherein the centers of the thin sheet main spring and the thick sheet auxiliary spring are fixed by a central bolt; the thin slice main spring comprises a first main spring leaf, a second main spring leaf, a third main spring leaf, a fourth main spring leaf, a fifth main spring leaf and a sixth main spring leaf which are sequentially stacked from top to bottom, the thick slice auxiliary spring comprises a first auxiliary spring leaf, a second auxiliary spring leaf, a third auxiliary spring leaf and a fourth auxiliary spring leaf which are sequentially stacked from top to bottom, and the thickness of each main spring leaf of the thin slice main spring is smaller than that of each auxiliary spring leaf in the thick slice auxiliary spring. The utility model discloses increased the stationarity that the vehicle went, and the travelling comfort of taking, satisfied the requirement of traveling under the different operating modes of underloading, heavy load, prolonged the life of leaf spring.
Description
Technical Field
The utility model relates to an automobile parts technical field especially relates to a gradual change rigidity semitrailer multi-leaf spring assembly.
Background
The steel plate spring is a key important elastic element in an automobile suspension system, bears all forces and moments generated by the running of an automobile, is a complex stressed complex, has good elasticity, ensures the riding comfort, and does not allow permanent deformation to occur in the normal running of the automobile to influence the use. When present semitrailer underload and heavy load, the quality change can arouse the too big contradiction of suspension offset frequency, influences the ride comfort that the vehicle went and took, and present semitrailer plate spring still need improve the ride comfort that the ride that improves semitrailer went, the travelling comfort of taking, satisfies underload, the different requirements of full-load simultaneously, satisfies market diversified demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gradual change rigidity semitrailer multi-leaf spring assembly has increased the stationarity that the vehicle travel, and the travelling comfort of taking, satisfies the requirement of traveling under the different operating modes of underloading, heavy load, has prolonged the life of leaf spring.
The utility model provides a technical scheme that its technical problem adopted is: a multi-leaf spring assembly of a semitrailer with gradually changed rigidity comprises a thin sheet main spring and a thick sheet auxiliary spring which are distributed up and down, wherein the centers of the thin sheet main spring and the thick sheet auxiliary spring are fixed through a central bolt;
the thin main leaf spring comprises a first main leaf spring, a second main leaf spring, a third main leaf spring, a fourth main leaf spring, a fifth main leaf spring and a sixth main leaf spring which are sequentially stacked from top to bottom, wherein two ends of the first main leaf spring, the second main leaf spring and the third main leaf spring are equal, one end of the fourth main leaf spring is equal to the third main leaf spring, a hook is arranged at the other end of the fourth main leaf spring, and the fifth main leaf spring and the sixth main leaf spring are sequentially shortened relative to the fourth main leaf spring;
the thick leaf auxiliary spring comprises a first auxiliary spring leaf, a second auxiliary spring leaf, a third auxiliary spring leaf and a fourth auxiliary spring leaf which are sequentially stacked from top to bottom, and the first auxiliary spring leaf, the second auxiliary spring leaf, the third auxiliary spring leaf and the fourth auxiliary spring leaf are sequentially shortened;
the thickness of each main reed of the thin main reed is smaller than that of each auxiliary reed in the thick auxiliary reed;
the curvature radius of the first auxiliary reed is larger than that of the sixth main reed, and the end part of the first auxiliary reed is not contacted with the sixth main reed in a free state;
and the end part of the second auxiliary spring leaf and the first main spring leaf are fastened through a hoop.
Preferably, the free end of the central bolt is fastened by a central nut.
Preferably, the bottom of clamp is passed through the clamp rivet and is realized being fixed in the tip bottom of the vice reed of second with the clamp, it has the clamp bolt to run through between the tip of clamp, the free end of clamp bolt passes through the clamp nut fastening, the clamp sleeve pipe has been put to the cover on the clamp bolt.
Preferably, the vertical distance from the connecting line of the two ends of the first main reed to the central shaft of the central bolt is 85 +/-6 mm.
Preferably, the active length of the leaf main spring is 970 mm.
The utility model has the advantages that: the device is ingenious and reasonable in structural design and comprises a thin sheet main spring at the upper part and a thick sheet auxiliary spring at the lower part, wherein only the thin sheet main spring acts within a certain light load range, when the load is gradually increased to a certain value, the thin sheet main spring starts to be in contact with the thick sheet auxiliary spring, the rigidity of the whole plate spring is increased, the characteristic is nonlinear, and when the thin sheet main spring and the thick sheet auxiliary spring are completely in contact with each other to form a whole, the characteristic of the plate spring is changed into linear; the non-linear characteristic with gradual change in the middle can effectively solve the contradiction of overlarge suspension frequency offset caused by the change of the loading quality of the automobile, has more stable natural frequency, and increases the running smoothness and riding comfort of the automobile; in the process that the load is gradually increased, the thick leaf auxiliary spring and the thin leaf main spring bear the load at the same time, the product rigidity is gradually changed from the low rigidity of the thin leaf main spring to the larger rigidity when the product rigidity and the thick leaf auxiliary spring act together, the running requirements of different loads are met, the running stability and riding comfort of the vehicle are ensured, and meanwhile, the service life is prolonged under the condition of the same bearing capacity.
Drawings
Fig. 1 is the utility model relates to a gradual change rigidity semitrailer multi-leaf spring assembly's elevation view.
Fig. 2 is the utility model relates to a top view of gradual change rigidity semitrailer multi-leaf spring assembly.
In the figure: 1. the spring clamp comprises a thin main leaf spring, 11, a first main leaf spring, 12, a second main leaf spring, 13, a third main leaf spring, 14, a fourth main leaf spring, 15, a fifth main leaf spring, 16, a sixth main leaf spring, 2, a thick auxiliary leaf spring, 21, a first auxiliary leaf spring, 22, a second auxiliary leaf spring, 23, a third auxiliary leaf spring, 24, a fourth auxiliary leaf spring, 3, a hook, 4, a center bolt, 5, a center nut, 6, a clamp, 61, a clamp rivet, 62, a clamp bolt, 63, a clamp nut, 64 and a clamp sleeve.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.
Examples
A multi-leaf spring assembly of a semitrailer with gradually changed rigidity comprises a thin sheet main spring 1 and a thick sheet auxiliary spring 2 which are distributed up and down, wherein the centers of the thin sheet main spring 1 and the thick sheet auxiliary spring 2 are fixed through a central bolt 4;
the thin main leaf spring 1 comprises a first main leaf spring 11, a second main leaf spring 12, a third main leaf spring 13, a fourth main leaf spring 14, a fifth main leaf spring 15 and a sixth main leaf spring 16 which are sequentially stacked from top to bottom, the two ends of the first main leaf spring 11, the second main leaf spring 12 and the third main leaf spring 13 are equal, one end of the fourth main leaf spring 14 is equal to the third main leaf spring 13, the other end of the fourth main leaf spring 14 is provided with a hook 3, and the fifth main leaf spring 15 and the sixth main leaf spring 16 are sequentially shortened relative to the fourth main leaf spring 14;
the thick leaf auxiliary spring 2 comprises a first auxiliary spring 21, a second auxiliary spring 22, a third auxiliary spring 23 and a fourth auxiliary spring 24 which are sequentially stacked from top to bottom, and the first auxiliary spring 21, the second auxiliary spring 22, the third auxiliary spring 23 and the fourth auxiliary spring 24 are sequentially shortened;
the thickness of each main reed of the thin main spring 1 is smaller than that of each auxiliary reed of the thick auxiliary spring 2; the thicker leaf auxiliary spring 2 contributes more to increasing the stiffness of the overall leaf spring under heavy load.
The radius of curvature of the first auxiliary reed 21 is larger than the radius of curvature of the sixth main reed 16, and the end of the first auxiliary reed 21 is not in contact with the sixth main reed 16 in a free state, so that friction between the end of the first auxiliary reed 21 and the sixth main reed 16 in a light load process can be reduced.
The end part of the second auxiliary spring leaf 22 is fastened with the first main spring leaf 11 through a clamp 6.
Wherein the free end of the central bolt 4 is fastened by a central nut 5.
Wherein, the bottom of clamp 6 is passed through clamp rivet 61 and is realized being fixed in the tip bottom of the vice reed 22 of second with clamp 6, and it has clamp bolt 62 to run through between the tip of clamp 6, and clamp bolt 62's free end passes through clamp nut 63 fastening, and clamp sleeve 64 has been put to the cover on the clamp bolt 62.
Wherein, the vertical distance between the connecting line of the two ends of the first main reed 11 and the central shaft of the central bolt 4 is 85 mm plus or minus 6 mm.
Wherein, the active length of the sheet main spring 1 is 970 mm.
The specific implementation principle is that the multi-leaf spring assembly of the semitrailer with gradually changed rigidity consists of a thin sheet main spring 1 at the upper part and a thick sheet auxiliary spring 2 at the lower part, only the thin sheet main spring 1 acts within a certain light load range, when the load is gradually increased to a certain value, the thin sheet main spring 1 starts to contact with the thick sheet auxiliary spring 2, the rigidity of the whole leaf spring is increased, the characteristic is nonlinear, and after the thin sheet main spring 1 and the thick sheet auxiliary spring 2 are completely contacted into a whole, the characteristic of the leaf spring is changed into linear; the non-linear characteristic with gradual change in the middle can effectively solve the contradiction of overlarge suspension frequency offset caused by the change of the loading quality of the automobile, has more stable natural frequency, and increases the running smoothness and riding comfort of the automobile; in the process that the load is gradually increased, the thick leaf auxiliary spring 2 and the thin leaf main spring 1 bear the load at the same time, the product rigidity is gradually changed from the low rigidity of the thin leaf main spring 1 to the larger rigidity when the product rigidity and the thick leaf auxiliary spring 2 act together, the running requirements of different loads are met, the running stability and the riding comfort of a vehicle are ensured, and meanwhile, the service life is prolonged under the condition of the same bearing capacity.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent characters or structure changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the same way in the protection scope of the present invention.
Claims (5)
1. The utility model provides a gradual change rigidity semitrailer multi-leaf spring assembly which characterized in that: the spring comprises a thin sheet main spring and a thick sheet auxiliary spring which are distributed up and down, wherein the centers of the thin sheet main spring and the thick sheet auxiliary spring are fixed through a central bolt;
the thin main leaf spring comprises a first main leaf spring, a second main leaf spring, a third main leaf spring, a fourth main leaf spring, a fifth main leaf spring and a sixth main leaf spring which are sequentially stacked from top to bottom, wherein two ends of the first main leaf spring, the second main leaf spring and the third main leaf spring are equal, one end of the fourth main leaf spring is equal to the third main leaf spring, a hook is arranged at the other end of the fourth main leaf spring, and the fifth main leaf spring and the sixth main leaf spring are sequentially shortened relative to the fourth main leaf spring;
the thick leaf auxiliary spring comprises a first auxiliary spring leaf, a second auxiliary spring leaf, a third auxiliary spring leaf and a fourth auxiliary spring leaf which are sequentially stacked from top to bottom, and the first auxiliary spring leaf, the second auxiliary spring leaf, the third auxiliary spring leaf and the fourth auxiliary spring leaf are sequentially shortened;
the thickness of each main reed of the thin main reed is smaller than that of each auxiliary reed in the thick auxiliary reed;
the curvature radius of the first auxiliary reed is larger than that of the sixth main reed, and the end part of the first auxiliary reed is not contacted with the sixth main reed in a free state;
and the end part of the second auxiliary spring leaf and the first main spring leaf are fastened through a hoop.
2. The multi-leaf spring assembly of a semitrailer with gradually changed rigidity according to claim 1, is characterized in that: the free end of the central bolt is fastened by a central nut.
3. The multi-leaf spring assembly of a semitrailer with gradually changed rigidity according to claim 1, is characterized in that: the bottom of clamp is passed through the clamp rivet and is realized being fixed in the tip bottom of the vice reed of second with the clamp, it has the clamp bolt to run through between the tip of clamp, the free end of clamp bolt passes through the clamp nut fastening, the clamp sleeve pipe has been put to the cover on the clamp bolt.
4. The multi-leaf spring assembly of a semitrailer with gradually changed rigidity according to claim 1, is characterized in that: and the vertical distance from the connecting line of the two ends of the first main reed to the central shaft of the central bolt is 85 +/-6 mm.
5. The multi-leaf spring assembly of a semitrailer with gradually changed rigidity according to claim 1, is characterized in that: the active length of the leaf main spring is 970 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283172.9U CN210769965U (en) | 2019-08-09 | 2019-08-09 | Multi-leaf spring assembly of semitrailer with gradually-changed rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283172.9U CN210769965U (en) | 2019-08-09 | 2019-08-09 | Multi-leaf spring assembly of semitrailer with gradually-changed rigidity |
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| Publication Number | Publication Date |
|---|---|
| CN210769965U true CN210769965U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283172.9U Active CN210769965U (en) | 2019-08-09 | 2019-08-09 | Multi-leaf spring assembly of semitrailer with gradually-changed rigidity |
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| Country | Link |
|---|---|
| CN (1) | CN210769965U (en) |
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2019
- 2019-08-09 CN CN201921283172.9U patent/CN210769965U/en active Active
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