CN211764769U - Composite material plate spring - Google Patents
Composite material plate spring Download PDFInfo
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- CN211764769U CN211764769U CN202020005387.0U CN202020005387U CN211764769U CN 211764769 U CN211764769 U CN 211764769U CN 202020005387 U CN202020005387 U CN 202020005387U CN 211764769 U CN211764769 U CN 211764769U
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- leaf spring
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Abstract
The utility model discloses a composite leaf spring, including the horizontal segment that is located the middle part, be located both ends and tilt up's slope section and be used for the smooth curved segment who connects horizontal segment and slope section, the thickness of horizontal segment is greater than the thickness of slope section, the thickness of curved segment is steadilyd decrease from the horizontal segment to the slope section. The utility model has the advantages of simple and reasonable structure, being beneficial to keeping stress consistency everywhere, etc.
Description
Technical Field
The utility model relates to an automotive suspension especially relates to a combined material leaf spring.
Background
The plate spring is an important component of a suspension of a trailer, a semitrailer, a passenger car and the like, and has very important influence on the performance of the whole car. At present, 4 variable-section few leaf springs or 7-14 constant-section leaf springs are mainly adopted in suspension devices of trailers, semi-trailers and the like, the leaf springs are heavy and are not beneficial to realizing the light weight of the trailers, meanwhile, large friction force exists between every two leaf springs, and noise which is difficult to accept is generated along with the increase of vibration speed and the increase of the friction force.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple structure, reasonable, be favorable to keeping the unanimous combined material leaf spring of stress everywhere.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the composite plate spring comprises a horizontal section, inclined sections and a bent section, wherein the horizontal section is located in the middle of the composite plate spring, the inclined sections are located at two end portions of the composite plate spring and are inclined upwards, the bent section is used for smoothly connecting the horizontal section and the inclined sections, the thickness of the horizontal section is larger than that of the inclined sections, and the thickness of the bent section is gradually reduced from the horizontal section to the inclined sections.
As a further improvement of the above technical solution: an upper pressing plate and a lower pressing plate are fixedly arranged on the upper side and the lower side of the horizontal section respectively.
As a further improvement of the above technical solution: composite material gaskets are arranged between the upper pressure plate and the horizontal section and between the horizontal section and the lower pressure plate.
As a further improvement of the above technical solution: the upper pressing plate and the lower pressing plate are both provided with convex rings and mounting holes concentrically arranged with the convex rings, and the upper pressing plate and the lower pressing plate are connected through fastening assemblies arranged in the mounting holes.
As a further improvement of the above technical solution: the composite material gasket has a thickness of no more than 4 mm.
As a further improvement of the above technical solution: and the upper side of the inclined section is fixedly provided with a wear-resisting plate.
As a further improvement of the above technical solution: and a protection plate is fixedly arranged on the lower side of the inclined section.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a composite leaf spring, including the horizontal segment that is located the middle part, be located both ends and tilt up's slope section, and be used for the bending section of smooth connection horizontal segment and slope section, the thickness of horizontal segment is greater than the thickness of slope section, the thickness of bending section is steadilyd decrease to the slope section from the horizontal segment, moreover, the steam generator is simple in structure, and is reasonable, be favorable to keeping stress unanimity everywhere, compare with traditional leaf spring linkage, possess and can subtract and weigh more than 50%, frictionless noise, advantages such as better travelling comfort and more than 3 times life, the composite leaf spring.
Drawings
Fig. 1 is an external structural view of the composite plate spring of the present invention.
Fig. 2 is a schematic sectional structure view of the composite plate spring of the present invention.
Fig. 3 is a schematic structural view of the composite plate spring of the present invention mounted on a vehicle frame.
The reference numerals in the figures denote: 11. a horizontal segment; 12. an inclined section; 13. a curved section; 4. a frame; 51. an upper pressure plate; 52. a lower pressing plate; 53. a composite gasket; 54. a convex ring; 55. mounting holes; 6. a fastening assembly; 71. a wear plate; 72. a protection plate; 8. an axle.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 3 show an embodiment of the composite leaf spring of the present invention, the composite leaf spring of this embodiment includes a horizontal section 11 located at the middle part, an inclined section 12 located at both ends and inclined upward, and a curved section 13 for smoothly connecting the horizontal section 11 and the inclined section 12, the thickness of the horizontal section 11 is greater than that of the inclined section 12, and the thickness of the curved section 13 decreases progressively from the horizontal section 11 to the inclined section 12. Wherein the composite leaf spring preferably comprises a resin matrix and reinforcing fibres which may be: carbon fiber, glass fiber, aramid fiber or natural fiber, etc.
This combined material leaf spring, including the horizontal segment 11 that is located the middle part, be located both ends and tilt up's slope section 12, and be used for the smooth curved segment 13 who connects horizontal segment 11 and tilt section 12, the thickness of horizontal segment 11 is greater than the thickness of tilt section 12, the thickness of curved segment 13 is steadilyd decrease from horizontal segment 11 to tilt section 12, moreover, the steam generator is simple in structure, and is reasonable, be favorable to keeping everywhere stress unanimous, compare with traditional leaf spring linkage, possess and to subtract more than 50%, no frictional noise, advantages such as better travelling comfort and more than 3 times life.
Further, in this embodiment, an upper pressing plate 51 and a lower pressing plate 52 are respectively and fixedly disposed on the upper side and the lower side of the horizontal section 11. When the middle part of the composite plate spring is installed on the axle 8 through the U-shaped bolt, the upper pressing plate 51 and the lower pressing plate 52 can provide certain protection for the composite plate spring.
Furthermore, in the present embodiment, composite material gaskets 53 are disposed between the upper platen 51 and the horizontal section 11, and between the horizontal section 11 and the lower platen 52. The composite material gasket 53 is beneficial to solving the problem of overlarge local stress caused by the direct contact between the upper pressing plate 51 and the lower pressing plate 52 and the composite material plate spring, and the service life of the composite material plate spring can be greatly prolonged; preferably, the thickness of the composite material spacer 53 is not greater than 4 mm.
Furthermore, in the present embodiment, the upper pressing plate 51 and the lower pressing plate 52 are both provided with a protruding ring 54 and a mounting hole 55 concentrically arranged with the protruding ring 54, and the upper pressing plate 51 and the lower pressing plate 52 are connected by the fastening assembly 6 disposed in the mounting hole 55, although in other embodiments, the upper pressing plate 51 and the lower pressing plate 52 may be fixed by gluing or the like. The positioning is carried out through the convex ring 54 and the mounting hole 55 during assembly, and the front and back movement of the composite plate spring in the use process is effectively prevented.
Further, in the present embodiment, a wear plate 71 is fixedly arranged on the upper side of the inclined section 12; the lower side of the inclined section 12 is fixedly provided with a protective plate 72. The wear-resisting plate 71 is used for transferring the load of the vehicle body part to the composite leaf spring, and meanwhile, the balance beam or the supporting beam on the vehicle frame 4 is prevented from directly rubbing the composite leaf spring, so that the service life of the composite leaf spring is prolonged; the lower surfaces of the two ends of the composite plate spring are provided with the protection plates 72, so that the situation that when the two ends of the composite plate spring are installed or pass through uneven road surfaces, the limit bolts below the end part of the composite plate spring are directly contacted with the composite plate spring to cause damage can be avoided.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. A composite leaf spring characterized by: the connecting device comprises a horizontal section (11) positioned in the middle, inclined sections (12) positioned at two ends and inclined upwards, and a bending section (13) used for smoothly connecting the horizontal section (11) and the inclined sections (12), wherein the thickness of the horizontal section (11) is greater than that of the inclined sections (12), and the thickness of the bending section (13) is gradually reduced from the horizontal section (11) to the inclined sections (12).
2. The composite leaf spring of claim 1 wherein: an upper pressure plate (51) and a lower pressure plate (52) are fixedly arranged on the upper side and the lower side of the horizontal section (11) respectively.
3. The composite leaf spring of claim 2 wherein: composite material gaskets (53) are arranged between the upper pressing plate (51) and the horizontal section (11) and between the horizontal section (11) and the lower pressing plate (52).
4. The composite leaf spring of claim 2 wherein: the upper pressure plate (51) and the lower pressure plate (52) are provided with convex rings (54) and mounting holes (55) concentrically arranged with the convex rings (54), and the upper pressure plate (51) and the lower pressure plate (52) are connected through fastening assemblies (6) arranged in the mounting holes (55).
5. The composite leaf spring of claim 3 wherein: the composite material shim (53) has a thickness of no more than 4 mm.
6. The composite leaf spring of any one of claims 1 to 5, wherein: and the upper side of the inclined section (12) is fixedly provided with a wear-resisting plate (71).
7. The composite leaf spring of any one of claims 1 to 5, wherein: and a protection plate (72) is fixedly arranged on the lower side of the inclined section (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020005387.0U CN211764769U (en) | 2020-01-02 | 2020-01-02 | Composite material plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020005387.0U CN211764769U (en) | 2020-01-02 | 2020-01-02 | Composite material plate spring |
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| Publication Number | Publication Date |
|---|---|
| CN211764769U true CN211764769U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020005387.0U Active CN211764769U (en) | 2020-01-02 | 2020-01-02 | Composite material plate spring |
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| CN (1) | CN211764769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757853A (en) * | 2021-01-29 | 2021-05-07 | 东风银轮(十堰)非金属部件有限公司 | Composite material plate spring and manufacturing process thereof |
-
2020
- 2020-01-02 CN CN202020005387.0U patent/CN211764769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757853A (en) * | 2021-01-29 | 2021-05-07 | 东风银轮(十堰)非金属部件有限公司 | Composite material plate spring and manufacturing process thereof |
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