CN217421982U - Leaf spring and tricycle - Google Patents
Leaf spring and tricycle Download PDFInfo
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- CN217421982U CN217421982U CN202220422098.XU CN202220422098U CN217421982U CN 217421982 U CN217421982 U CN 217421982U CN 202220422098 U CN202220422098 U CN 202220422098U CN 217421982 U CN217421982 U CN 217421982U
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Abstract
The utility model discloses a leaf spring and tricycle, leaf spring include the spring body, the spring body is formed by the multi-disc reed stack, the reed includes multi-disc auxiliary spring and multi-disc main spring, the auxiliary spring is located main spring top, and the length from the top down of multi-disc auxiliary spring steadilys decrease in proper order, the length from the top down of main spring steadilys decrease in proper order, spring body both ends form with connected to frame's book ear. The utility model discloses a leaf spring and tricycle can reduce the friction between each steel sheet, reduces leaf spring's materials simultaneously, practices thrift the cost, satisfies light-duty freight vehicle's lightweight and low-cost requirement, makes the book ear intensity and the steel sheet intensity matching of the weak department of leaf spring, extension leaf spring's life.
Description
Technical Field
The utility model relates to an automobile shock absorber ware technical field, concretely relates to leaf spring and tricycle.
Background
The steel plate spring is an elastic element which is most widely applied in automobile (especially freight automobile) suspensions, and is an elastic beam with approximate equal strength formed by combining a plurality of alloy spring pieces with equal width but unequal length (the thickness can be equal or unequal).
When the steel plate spring is installed in an automobile suspension and the borne vertical load is positive, each spring piece is stressed and deformed and tends to be arched upwards. At this point, the axle and frame are brought closer together. When the axle and the frame are far away from each other, the positive vertical load and deformation borne by the leaf spring are gradually reduced and sometimes even reversed.
The steel plate spring in the prior art can increase the strength of the steel plate spring by increasing the number of the spring leaves, each steel plate of a plurality of steel plate springs is overlapped into an inverted triangle shape, the steel plate at the uppermost end is the longest, the steel plate at the lowermost end is the shortest, the number of the steel plates is related to the weight of a supporting passenger car, and the spring rigidity is higher as the steel plates are more, thicker and shorter. However, when the leaf spring is used for a long time, the sheets slide against each other to generate noise. The relative friction between the steel plates also causes the spring to deform, resulting in uneven running.
Therefore, in order to solve the above problems, a leaf spring is needed, which can provide a new leaf spring configuration, reduce friction between each steel sheet, reduce the material consumption of the leaf spring, save cost, meet the requirements of light weight and low cost of light freight vehicles, match the strength of the eye at the weak position of the leaf spring with the strength of the steel sheet, and prolong the service life of the leaf spring.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, providing leaf spring, can reducing the friction between each steel sheet, reduce leaf spring's materials simultaneously, practice thrift the cost, satisfy light-duty freight vehicle's lightweight and low-cost requirement, make the eye intensity and the steel sheet intensity matching of the weak department of leaf spring, extension leaf spring's life.
The utility model discloses a leaf spring, including the spring body, the spring body is formed by the multi-disc reed stack, the reed includes multi-disc auxiliary spring and multi-disc main spring, the auxiliary spring is located main spring top, and the length from the top down of multi-disc auxiliary spring steadilys decrease in proper order, the length from the top down of main spring steadilys decrease in proper order, the spring body both ends form the eye with connected to frame.
Furthermore, the auxiliary spring comprises a first auxiliary spring, a second auxiliary spring and a third auxiliary spring, the lengths of the first auxiliary spring, the second auxiliary spring and the third auxiliary spring are sequentially decreased from top to bottom, the main spring comprises a first main spring, a second main spring, a third main spring and a fourth main spring, the lengths of the first main spring, the second main spring, the third main spring and the fourth main spring are sequentially decreased from top to bottom, the eye comprises a first eye and a second eye, the first eye is formed by curling the first end of the first main spring, the first end of the second main spring is not completely wrapped and attached to the outer side of the first eye, the second eye is formed by curling the second end of the first main spring, and the eye is used as an installation basis for assembling and positioning the steel plate spring and the carriage, so that the connection with the carriage positioning and assembling can be guaranteed, meanwhile, the structure is simple, the manufacturing is low in cost, and the use strength and the economy can be both satisfied when the tricycle is applied.
Furthermore, the middle parts of the plurality of reeds are locked and overlapped together through the inner bolts, the reeds are all overlapped together through the inner bolts, the integrity of the spring body is improved, meanwhile, the connecting part of the spring body and the axle is also positioned in the middle of the spring body, the strength of the middle position of the spring body can be greatly ensured by the middle parts of the connected spring bodies, the spring body can bear loads in a larger vertical direction, the spring body is economical and applicable, and the spring body is ensured to have the strongest load bearing strength on the premise of not increasing the volume and the mass of the spring body.
Furthermore, the two ends of the first auxiliary spring form a bearing section, the bearing section is used for supporting the carriage when the carriage bears large downward pressure, when the carriage is in no load, the auxiliary spring does not participate in bearing, when the bearing of the carriage reaches a certain degree, the position of a coil ear sinking in the carriage also moves downwards, the first auxiliary spring also participates in the bearing of the main spring through the force transmission of the fastening assembly, if the carriage is loaded again, the carriage position moves downwards continuously, the bottom of the carriage is in direct contact with the bearing section of the first auxiliary spring, at the moment, the first auxiliary spring can also play a bearing role for the carriage, and the bearing force can be dispersed to the main spring or the second auxiliary spring through the fastening assembly and the hoop, so that all reeds are stressed evenly, meanwhile, the hoop can also well ensure good synchronous displacement between the two reeds connected with the first auxiliary spring, and excessive friction is avoided.
Furthermore, the first main spring and the second main spring are fixedly connected at the positions close to the end eye through the strap respectively, and the ends of the first main spring and the second main spring are connected, so that excessive friction between the first main spring and the second main spring is avoided, the friction between the first main spring and the second main spring is reduced, the stress of the first main spring and the stress of the second main spring are more synchronous and balanced, and the strength of the spring body is enhanced.
Further, still be provided with the bush in the book ear, the setting of bush can improve the wear resistance of book ear in the very big degree, guarantees good being connected between book ear and the carriage, and the bush that sets up simultaneously is also comparatively convenient when the maintenance is changed, can reduce vehicle use cost effectively.
Furthermore, the first auxiliary spring and the second auxiliary spring are fixedly connected at one end close to the second rolling lug through a clamping belt, the first auxiliary spring and the third main spring are fixedly connected at one end close to the first rolling lug through a fastening assembly, the fastening assembly can well guarantee the integrity and relative independence between the auxiliary spring and the main spring, the stress of the main spring and the auxiliary spring is more scientific, and meanwhile, the service life of the spring body can be prolonged.
Furthermore, the fastening assembly comprises a lengthened clamp belt, a fastening bolt and a fastening nut, the lengthened clamp belt is wrapped on the outer sides of the third main spring, the second main spring, the first main spring and the first auxiliary spring, and two ends of the lengthened clamp belt are fastened and connected through the fastening bolt and the fastening nut.
Furthermore, a limiting pipe is further arranged between the two end heads of the lengthened clamp belt, the fastening bolt penetrates through the limiting pipe, assembly is convenient, friction between the main spring and the auxiliary spring can be effectively reduced, noise of a vehicle body is reduced, and the service life of the reed is prolonged.
The utility model also provides a tricycle, install foretell leaf spring on the tricycle. The structure can reduce the weight of the tricycle, reduce the manufacturing cost and prolong the service life of the tricycle.
The utility model has the advantages that: the utility model discloses a leaf spring and tricycle can reduce the friction between each steel sheet, reduces leaf spring's materials simultaneously, practices thrift the cost, satisfies light-duty freight vehicle's lightweight and low-cost requirement, makes the book ear intensity and the steel sheet intensity matching of the weak department of leaf spring, extension leaf spring's life.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic view of the whole structure of the tricycle of the present invention.
Detailed Description
Fig. 1 is the structural schematic diagram of the utility model, fig. 2 is the top view of fig. 1, fig. 3 is the sectional structure schematic diagram of a-a department in fig. 1, does if 4 the utility model discloses the overall structure schematic diagram of tricycle, as shown in the figure, leaf spring in this embodiment includes the spring body, the spring body is formed by the superposition of multi-disc reed, the reed includes multi-disc auxiliary spring and multi-disc main spring, the auxiliary spring is located main spring top, and the length from the top down of multi-disc auxiliary spring steadilys decrease in proper order, the length from the top down of main spring steadilys decrease in proper order, the spring body both ends form the eye with connected to frame.
In this embodiment, the auxiliary spring includes first auxiliary spring 1, second auxiliary spring 2 and third auxiliary spring 3 whose length decreases progressively from top to bottom, the main spring includes first main spring 4, second main spring 5, third main spring 6 and fourth main spring 7 whose length decreases progressively from top to bottom, the eye includes first eye and second eye, first eye is curled by first end of first main spring 4 and is formed and first end of second main spring 5 is incompletely cladding and is laminated in the first eye outside, second eye is curled by second end of first main spring 4, the eye is as the installation basis of leaf spring and carriage positioning, both can guarantee the connection with carriage positioning assembly, and simple structure, simple manufacture, low cost, be applied to the tricycle, both can satisfy the use intensity and can also consider economic nature again.
In the embodiment, the middle parts of the plurality of reeds are locked and overlapped together through the inner bolts 13 and the central locking nuts 12, the reeds are all overlapped together through the inner bolts 13, the integrity of the spring body is improved, meanwhile, the connecting part of the spring body and the axle is also positioned in the middle of the spring body, the middle parts of the connected spring bodies can greatly ensure the strength of the middle position of the spring body, the spring body can bear loads in a larger vertical direction, the spring body is economical and practical, and the spring body is ensured to have the strongest load bearing strength on the premise of not increasing the volume and the mass of the spring body.
In this embodiment, the two ends of the first auxiliary spring 1 form receiving sections, which are used for supporting the carriage when the carriage bears a large downward pressure, when the carriage is in no load, the auxiliary spring does not participate in bearing, when the carriage reaches a certain degree of bearing, the position of the carriage sinking winding lug also moves downwards, the first auxiliary spring 1 also participates in the bearing of the main spring through the force transmission of the fastening component, if the carriage is loaded again and the position of the carriage moves downwards continuously, the bottom of the carriage is in direct contact with the bearing section of the first auxiliary spring 1, at the moment, the first auxiliary spring 1 can also bear the carriage, and the first auxiliary spring 1 can disperse the bearing force to the main spring or the second auxiliary spring 2 through the fastening assembly and the anchor ear, so that the stress of each spring leaf is balanced, meanwhile, the hoop can well ensure good synchronous displacement between the two connected reeds, and excessive friction is avoided.
In this embodiment, the first main spring 4 and the second main spring 5 are fixedly connected at positions close to the end ears respectively through the strap 11, so that the ends of the first main spring 4 and the second main spring 5 are connected, excessive friction between the first main spring 4 and the second main spring 5 is avoided, friction between the first main spring 4 and the second main spring 5 is reduced, stress on the first main spring 4 and stress on the second main spring 5 are more synchronous and balanced, and strength of the spring body is enhanced.
In this embodiment, still be provided with bush 15 in the book ear, the wear resistance of book ear can be improved to a very big degree in the setting of bush 15, guarantees good being connected between book ear and the carriage, and bush 15 that sets up simultaneously is also comparatively convenient when the maintenance is changed, can reduce vehicle use cost effectively.
In this embodiment, the first auxiliary spring 1 and the second auxiliary spring 2 are fixedly connected at one end close to the second winding lug through the strap 11, the first auxiliary spring 1 and the third main spring 6 are fixedly connected at one end close to the first winding lug through the fastening assembly, and the fastening assembly can well ensure the integrity and relative independence between the auxiliary spring and the main spring, so that the stress of the main spring and the auxiliary spring is more scientific, and the service life of the spring body can be prolonged.
In this embodiment, the fastening assembly includes an elongated strap 14, a fastening bolt 10, and a fastening nut 8, the elongated strap 14 is wrapped around the third main spring 6, the second main spring 5, the first main spring 4, and the first auxiliary spring 1, and both ends of the elongated strap 14 are fastened and connected by the fastening bolt 10 and the fastening nut 8.
In this embodiment, a limiting pipe is further disposed between two ends of the lengthened strap 14, and the fastening bolt 10 is inserted into the limiting pipe, so that the assembly is convenient, the friction between the main spring and the auxiliary spring can be effectively reduced, the noise of the vehicle body is reduced, and the service life of the spring plate is prolonged.
A tricycle adopts foretell leaf spring. The structure can reduce the weight of the tricycle, reduce the manufacturing cost and prolong the service life of the tricycle.
The utility model discloses a leaf spring and tricycle can reduce the friction between each steel sheet, reduces leaf spring's materials simultaneously, practices thrift the cost, satisfies light-duty freight vehicle's lightweight and low-cost requirement, makes the book ear intensity and the steel sheet intensity matching of the weak department of leaf spring, extension leaf spring's life.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A leaf spring, characterized by: the vehicle-mounted spring comprises a spring body, wherein the spring body is formed by stacking a plurality of spring leaves, each spring leaf comprises a plurality of auxiliary springs and a plurality of main springs, each auxiliary spring is positioned above the corresponding main spring, the lengths of the auxiliary springs are sequentially reduced from top to bottom, each main spring comprises a first main spring, a second main spring, a third main spring and a fourth main spring, the lengths of the first main spring, the second main spring, the third main spring and the fourth main spring are sequentially reduced from top to bottom, two ends of the spring body form a coil lug connected with a vehicle frame, and the first main spring and the second main spring are fixedly connected at positions close to end coil lugs through a strap respectively.
2. The leaf spring of claim 1, wherein: the auxiliary spring comprises a first auxiliary spring, a second auxiliary spring and a third auxiliary spring, wherein the lengths of the first auxiliary spring, the second auxiliary spring and the third auxiliary spring are sequentially decreased from top to bottom, the eye comprises a first eye and a second eye, the first eye is formed by curling the first end of the first main spring, the first end of the second main spring is not completely wrapped and attached to the outer side of the first eye, and the second eye is formed by curling the second end of the first main spring.
3. The leaf spring of claim 2, wherein: the middle parts of the reeds are locked and overlapped together through the internal bolt.
4. The leaf spring of claim 3, wherein: and the two ends of the first auxiliary spring form bearing sections which are used for supporting the carriage when the carriage bears large downward pressure.
5. The leaf spring of claim 1, wherein: and a bushing is also arranged in the eye.
6. The leaf spring of claim 2, wherein: the first auxiliary spring and the second auxiliary spring are fixedly connected at one end close to the second rolling lug through a clamping belt, and the first auxiliary spring and the third main spring are fixedly connected at one end close to the first rolling lug through a fastening assembly.
7. The leaf spring of claim 6, wherein: the fastening assembly comprises a lengthened clamp belt, a fastening bolt and a fastening nut, the lengthened clamp belt is wrapped on the outer sides of the third main spring, the second main spring, the first main spring and the first auxiliary spring, and two ends of the lengthened clamp belt are fastened and connected through the fastening bolt and the fastening nut.
8. The leaf spring of claim 7, wherein: and a limiting pipe is further arranged between the two ends of the lengthened strap, and the fastening bolt is arranged in the limiting pipe in a penetrating manner.
9. A tricycle, its characterized in that: the tricycle is provided with a steel plate spring according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422098.XU CN217421982U (en) | 2022-02-28 | 2022-02-28 | Leaf spring and tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220422098.XU CN217421982U (en) | 2022-02-28 | 2022-02-28 | Leaf spring and tricycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421982U true CN217421982U (en) | 2022-09-13 |
Family
ID=83178192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220422098.XU Active CN217421982U (en) | 2022-02-28 | 2022-02-28 | Leaf spring and tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421982U (en) |
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2022
- 2022-02-28 CN CN202220422098.XU patent/CN217421982U/en active Active
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