CN111306230A - Sudden change disc spring - Google Patents
Sudden change disc spring Download PDFInfo
- Publication number
- CN111306230A CN111306230A CN202010197392.0A CN202010197392A CN111306230A CN 111306230 A CN111306230 A CN 111306230A CN 202010197392 A CN202010197392 A CN 202010197392A CN 111306230 A CN111306230 A CN 111306230A
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- China
- Prior art keywords
- line segment
- end line
- diameter side
- disc spring
- spring body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/32—Belleville-type springs
Abstract
The invention discloses an abrupt change disc spring which comprises a disc spring body, wherein the upper surface of the cross section of the disc spring body is connected by an inner upper end line segment A1B1 at the inner diameter side and an outer upper end line segment C1B1 at the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 at the outer diameter side is α, the lower surface of the cross section of the disc spring body is connected by an outer lower end line segment A2B2 at the outer diameter side and an inner lower end line segment C2B2 at the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, abrupt change of the force value characteristic of the disc spring in the compression process is realized according to the specific relation formed by α, 85.
Description
Technical Field
The invention relates to the technical field of springs, in particular to a sudden change disc spring.
Background
The disc spring is used as a basic part in mechanical equipment, is applied to many fields in modern industry, and is particularly applied to the fields of machinery industry, railway industry, building industry, nuclear power industry and the like. The demand for disc spring devices is also increasing; in the compression process of the existing disc spring, the force value characteristic is smooth and continuous, but the abrupt force value characteristic is required in many application fields; therefore, a disc spring with abrupt change of force value characteristic is urgently needed.
Disclosure of Invention
In view of the above, the technical problems to be solved by the present invention are: the provided sudden change disc spring is reasonable in structural design and can enable the force value characteristic of the disc spring to realize sudden change in the compression process.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
an abrupt disk spring comprises a disk spring body, wherein the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α 2, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, the α is larger than zero and smaller than α, and the α is.
An abrupt disk spring comprises a disk spring body, wherein the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α 2, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, the α is larger than zero and smaller than α, and the α is equal.
An abrupt disk spring comprises a disk spring body, wherein the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α 1, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, the 963 is larger than zero and smaller than α 1, and the.
Preferably, α 2 is greater than α 3.
Preferably, α 2 is less than α 3.
Preferably, α 2 is equal to α 3.
Preferably, the disc spring body is machined from a rectangular disc spring.
By the technical scheme, the invention has the beneficial effects that:
compared with the prior art, the method has the advantages that,
the upper surface of the section of the disc spring body is connected with an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the lower surface of the section of the disc spring body is connected with an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, and included angles α 1, α 2 and α 3 are formed, so that the sudden change of force value characteristics of the disc spring in the compression process is realized according to the specific relation formed by α 1, α 2 and α 3, and the disc spring is reasonable in structure and easy to manufacture.
Drawings
FIG. 1 is a schematic cross-sectional view of an abrupt change disc spring according to the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at I;
FIG. 3 is a partial schematic cross-sectional view of a disc spring according to an embodiment;
FIG. 4 is a schematic cross-sectional view of an embodiment of an abrupt disk spring before being placed between an upper pressing plate and a lower pressing plate and being pressed;
FIG. 5 is a partial structural view of a cross section of a variable disk spring according to a second embodiment;
FIG. 6 is a schematic cross-sectional view of a second embodiment of an embodiment of a disk spring before it is compressed between an upper platen and a lower platen;
FIG. 7 is a partial structural view showing a cross section of a variable disc spring according to a third embodiment;
FIG. 8 is a schematic cross-sectional view of a three-step disc spring of the embodiment before being placed between an upper platen and a lower platen and pressed;
FIG. 9 is a partial structural view showing a cross section of a variable disk spring according to a fourth embodiment;
FIG. 10 is a schematic cross-sectional view of a four-step disc spring of an embodiment before being placed between an upper platen and a lower platen and compressed;
FIG. 11 is a partial structural view of a cross section of a fifth embodiment of a variable disc spring;
FIG. 12 is a schematic cross-sectional view of a five-step disc spring of the embodiment before being pressed between upper and lower pressing plates;
FIG. 13 is a schematic illustration of force value characteristic curves for a rectangular disc spring;
FIG. 14 is a schematic diagram of a sudden change in the force value characteristic curve of a sudden change disc spring;
FIG. 15 is a schematic diagram of a second time mutation of the force value characteristic curve of a mutation disc spring;
FIG. 16 is a schematic diagram showing simultaneous superposition of two sudden changes of the force value characteristic curves of the sudden-change disc spring.
Detailed Description
For those skilled in the art to further understand the features and technical content of the present invention, refer to the following detailed description and the accompanying drawings.
As shown in FIGS. 1-2, an abrupt disc spring comprises a disc spring body 1, wherein the upper surface of the cross section of the disc spring body 1 is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and an outer upper end line segment C1B1 on the outer diameter side is α, the lower surface of the cross section of the disc spring body 1 is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α, and the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line.
FIG. 13 is a schematic representation of force value characteristic curves for rectangular disc springs.
In the first embodiment, as shown in fig. 3 and 4, α 2 is greater than zero and less than α 1, α 3 is equal to zero, the disc spring is placed between an upper pressing plate 2 and a lower pressing plate 3, the cross section of a disc spring body 1 is that the upper pressing plate 2 is in point contact with A1, the lower pressing plate 3 is in point contact with a2, the lower pressing plate 3 is fixed, α 1 is gradually reduced when the upper pressing plate 2 presses downwards, when α 1 is equal to α 2, the upper surface of the cross section of the disc spring body 1 is horizontal from an inner upper end line segment A1B1 on the inner diameter side, when α 1 is smaller than α 2, the upper surface of the cross section of the disc spring body 1 is in a force contact point, which is changed from A1 to B1, and the disc spring force value characteristic curve is suddenly changed as shown in fig. 14.
In the second embodiment, as shown in fig. 5 and 6, α 2 is greater than zero and smaller than α 1, the α 3 is equal to α 1, the cross section of the disc spring body 1 is horizontal, the outer lower end line segment A2B2 is horizontal, the disc spring is placed between the upper pressing plate 2 and the lower pressing plate 3, the upper pressing plate 2 is in point contact with A1 point, the lower pressing plate 3 is in contact with the supporting surface of A2B2, when the upper pressing plate 2 is pressed downwards, the stress point of the lower surface is a transition point of B2, α 1 is gradually reduced, when α 1 is equal to α 2, the upper surface of the cross section of the disc spring body 1 is horizontal by the inner upper end line segment A1B1 on the inner diameter side, when the upper pressing plate 2 is pressed downwards continuously and α 1 is smaller than α 2, the contact point of the upper surface of the cross section of the disc spring body 1 is changed from A1 to B1.
In the third embodiment, as shown in fig. 7 and 8, α 3 is greater than zero and less than α 1, α 2 is equal to zero, the disc spring is placed between an upper pressing plate 2 and a lower pressing plate 3, the cross section of a disc spring body 1 is that the upper pressing plate 2 is in point contact with a1, the lower pressing plate 3 is in point contact with A2, the lower pressing plate 3 is fixed, α 1 is gradually reduced when the upper pressing plate 2 presses downwards, when α 1 is equal to α 3, a line segment A2B2 at the outer lower end of the lower surface of the cross section of the disc spring body 1 is horizontal, when the upper pressing plate 2 continues to press downwards, the force-bearing contact point of the lower surface is changed from A2 to B2, and the characteristic curve of the force value of the disc spring is suddenly changed.
In the fourth embodiment, as shown in fig. 9 and 10, α 3 is greater than zero and smaller than α 1, α 2 is equal to α 1, the belleville spring is placed between an upper pressing plate 2 and a lower pressing plate 3, the cross section of a belleville spring body 1 is that the upper pressing plate 2 is in contact with a supporting surface of A1B1, the lower pressing plate 3 is in point contact with A2, the lower pressing plate 3 is fixed, when the upper pressing plate 2 presses downwards, the stress point of the upper surface is transited to a point B1, α 1 gradually decreases in the pressing process, when α 1 is equal to α 3, the lower surface of the cross section of the belleville spring body 1 is leveled by an outer end line segment A2B2 on the outer diameter side, when the upper pressing plate 2 continues to press downwards until α 1 is smaller than α 3, the stress point of the lower surface of the cross section of the belleville spring body 1 is transited from A2 to B2.
In the fifth embodiment, as shown in fig. 11 and 12, α 2 is greater than zero and smaller than α 1, α 3 is greater than zero and smaller than α 1, the disc spring is placed between the upper pressing plate 2 and the lower pressing plate 3, the upper pressing plate 2 is in point contact with a1, the lower pressing plate 3 is in point contact with a2, and the lower pressing plate 3 is fixed.
When α 2 is greater than α 3, when the upper pressure plate 2 presses downwards, α 01 is gradually reduced in the process of pressing downwards, when α 1 is reduced to be equal to α 2, the upper surface of the section of the belleville spring body 1 is leveled by an inner upper end line segment A1B1 on the inner diameter side, when α 1 is continuously pressed downwards and is smaller than α 2, the upper surface contact point of the section of the belleville spring body 1 is changed from A1 to B1, and the characteristic curve of the force value of the belleville spring is changed suddenly, when α 1 is reduced to be equal to α 3, the outer lower end line segment A2B2 on the outer diameter side of the lower surface of the section of the belleville spring body 1 is leveled, when α 1 is continuously pressed downwards and is smaller than α 3, the lower surface of the section of the belleville spring body 1 is stressed to be changed from A2 to B2, and the characteristic curve of the belleville spring is changed;
when α 2 is smaller than α 3, when the upper pressure plate 2 presses downwards, α 01 gradually decreases in the pressing process, when α 1 is reduced to be equal to α 3, the outer lower end line segment A2B2 on the outer diameter side of the lower surface of the section of the disc spring body 1 is horizontal, when α 1 is smaller than α 3, the force contact point of the lower surface of the section of the disc spring body 1 changes from A2 to B2, and the characteristic curve of the disc spring force value changes suddenly, when α 1 is reduced to be equal to α 2, the upper surface of the section of the disc spring body 1 changes from the inner upper end line segment A1B1 on the inner diameter side, when α 1 is smaller than α 2, the force contact point of the upper surface of the section of the disc spring body 1 changes from A1 to B1, and the characteristic curve of the disc spring force value changes suddenly for the second time as shown in FIG. 15.
Similarly, when α 2 is equal to α 3, when the upper pressure plate 2 presses downwards, α 1 gradually decreases in the pressing process, when α 1 decreases to α 2 and α 3, the upper surface of the section of the disc spring body 1 is horizontal from an inner upper end line segment A1B1 on the inner diameter side, the outer lower end line segment A2B2 on the outer diameter side of the lower surface is horizontal, the upper pressure plate 2 continues to press downwards, when α 1 decreases to be smaller than α 2 and α 3, the force contact point of the upper surface of the section of the disc spring body 1 is changed from A1 to B1, the disc spring force value characteristic curve changes suddenly, the force contact point of the lower surface of the section of the disc spring body 1 is changed from A2 to B2, the disc spring force value characteristic curve changes suddenly, and the secondary sudden changes are overlapped to form a sudden change of the primary force value characteristic curve, and the sudden change.
However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, so that the equivalent structural changes made by using the contents of the present specification and the attached drawings are included in the scope of the present invention.
Claims (7)
1. An abrupt disk spring comprises a disk spring body and is characterized in that the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α 2, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α 1, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, α is larger than zero and smaller than α 1, and α is equal.
2. An abrupt disk spring comprises a disk spring body and is characterized in that the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α 2, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α 1, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, α is larger than zero and smaller than α 1, and α is equal to.
3. An abrupt disk spring comprises a disk spring body and is characterized in that the upper surface of the cross section of the disk spring body is connected by an inner upper end line segment A1B1 on the inner diameter side and an outer upper end line segment C1B1 on the outer diameter side, the included angle between the extension lines of the inner upper end line segment A1B1 and the outer upper end line segment C1B1 on the outer diameter side is α, the lower surface of the cross section of the disk spring body is connected by an outer lower end line segment A2B2 on the outer diameter side and an inner lower end line segment C2B2 on the inner diameter side, the included angle between the inner lower end line segment C2B2 and the horizontal line at the point B2 is α 1, the included angle between the extension lines of the outer lower end line segment A2B2 and the inner lower end line segment C2B2 is α, the α is larger than zero and smaller than α 1, and the 36.
4. The mutant disc spring according to claim 3, wherein α 2 is greater than α 3.
5. The mutant disc spring according to claim 3, wherein α 2 is less than α 3.
6. The mutant disc spring according to claim 3, wherein α 2 is equal to α 3.
7. The mutant disc spring according to any one of claims 1 to 6, wherein: the disc spring body is processed from a rectangular disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197392.0A CN111306230A (en) | 2020-03-19 | 2020-03-19 | Sudden change disc spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197392.0A CN111306230A (en) | 2020-03-19 | 2020-03-19 | Sudden change disc spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306230A true CN111306230A (en) | 2020-06-19 |
Family
ID=71153504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010197392.0A Pending CN111306230A (en) | 2020-03-19 | 2020-03-19 | Sudden change disc spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306230A (en) |
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2020
- 2020-03-19 CN CN202010197392.0A patent/CN111306230A/en active Pending
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