CN113883198A - Rigidity adjusting method and vulcanization method of concave hole elastic cushion - Google Patents
Rigidity adjusting method and vulcanization method of concave hole elastic cushion Download PDFInfo
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- CN113883198A CN113883198A CN202111128328.8A CN202111128328A CN113883198A CN 113883198 A CN113883198 A CN 113883198A CN 202111128328 A CN202111128328 A CN 202111128328A CN 113883198 A CN113883198 A CN 113883198A
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- concave
- hole
- concave hole
- holes
- elastic pad
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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
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
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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
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
- F16F1/3873—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions having holes or openings
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
The rigidity regulating method and sulfurizing method for elastic pad with concave holes features that the number of layers of concave holes, the included angle between two radial short edges of each concave hole, the radius difference between two concentric circles relative to two circumferential long edges of each concave hole, and the distance between two adjacent layers of concave holes are regulated to change the ratio between free area and concave area, so changing the rigidity of elastic pad. The elastic cushion is also provided with the through holes and the blind holes, so that the deformation of the partition board in the vulcanization process and the iron leakage are avoided, and the performance of the elastic cushion is improved.
Description
Technical Field
The invention relates to a performance adjusting method and a manufacturing method of an elastic cushion, in particular to a rigidity adjusting method and a vulcanizing method of a concave hole elastic cushion.
Background
Take shrinkage pool cushion to constitute by rubber and metal partition to open on rubber and have a great amount of shrinkage pools, the shrinkage pool falls into the multilayer, and each layer all designs with the centre of a circle, and it is installed between steel spring and framework, and the use of establishing ties with the round steel spring improves the mechanical properties of steel spring, and the product bears vertical load, can absorb high-frequency vibration and rigid shock, improves the vertical vibration performance of automobile body. Like application number CN200920278824.X, the utility model patent of the name "EMUs bogie is with a series of cushion" discloses a take cushion of shrinkage pool, and its rubber adopts stromatolite rubber heap structure, and the shrinkage pool divides into interior, well, outer three-layer, and the inlayer is opened there is little shrinkage pool, and the middle level is opened there is well shrinkage pool, and outer opening has big shrinkage pool, has higher vertical rigidity. But this patent does not mention how to adjust the properties of the elastic pad. The rigidity of the elastic cushion directly influences the vibration damping effect, and for different use environments, the elastic cushion bears different loads and has different requirements on the rigidity. Therefore, the rigidity of the elastic cushion needs to be adjusted on the premise of not changing the installation structure of the elastic cushion, so that the elastic cushion with the concave holes of the same installation structure can meet the requirements of different use environments, and the use range of the elastic cushion is enlarged.
Disclosure of Invention
The invention provides a rigidity adjusting method of a concave hole elastic cushion and a vulcanization method thereof aiming at the conditions that the performance of the current elastic cushion with concave holes is single and the use range is limited.
The technical means adopted by the invention to solve the problems are as follows: the method for adjusting the rigidity of the concave hole elastic pad changes the ratio of the free area of the elastic pad to the area of the concave hole by adjusting the parameters of the concave hole, and further changes the rigidity of the elastic pad.
Furthermore, the adjustment of the parameters of the concave holes comprises adjustment of the number of layers of the concave holes, adjustment of an included angle between two short edges of each concave hole along the radial direction, adjustment of a radius difference between concentric circles corresponding to two long edges of each concave hole along the circumferential direction, and adjustment of a distance between two adjacent layers of concave holes.
Furthermore, the number of layers of the concave holes is controlled to be 2-4.
Further, the included angle between two short sides of each concave hole is controlled to be 15o-17o。
Further, the corresponding radius difference between the two long sides of each concave hole is controlled to be 10-14 mm.
Further, the distance between two adjacent layers of concave holes is controlled to be 8-14 mm.
Further, the adjustment of the dimple parameters also includes an adjustment of the depth of each dimple.
Further, the depth of the concave hole is larger than one half of the compression depth of the elastic pad.
Further, the adjustment of the parameters of the concave hole also comprises that round corners are arranged at the connection part and the bottom of the long edge and the short edge of the concave hole, and the radius of the round corners is controlled to be 1-2 mm.
A through hole is formed in the elastic cushion to prevent the elastic cushion from horizontally displacing and rotating in the vulcanization process, and a blind hole is formed in the concave hole to position a partition plate and prevent the partition plate from deforming in the vulcanization process to expose the surface of rubber.
Furthermore, more than two through holes are symmetrically arranged on the elastic pad.
Furthermore, the number of the blind holes on the outer layer of the elastic pad is greater than or equal to that of the blind holes on the inner layer.
Further, when the shrinkage pool quantity is two-layer, all be equipped with the blind hole in every outer shrinkage pool, all be equipped with the blind hole in every shrinkage pool of inlayer or interval shrinkage pool setting up a blind hole.
Further, when the shrinkage pool quantity was the three-layer, all be equipped with the blind hole in every outer shrinkage pool, all be equipped with blind hole or interval shrinkage pool in every middle-level shrinkage pool and set up a blind hole, all be equipped with blind hole or interval shrinkage pool in every shrinkage pool of inlayer and set up a blind hole.
Further, when the shrinkage pool quantity was the four-layer, all be equipped with the blind hole in every outmost recess, all be equipped with the blind hole in the every recess of second floor that leans on outer layer department, all be equipped with blind hole or a shrinkage pool in the every recess of third layer at an interval and set up a blind hole, all be equipped with blind hole or a shrinkage pool in the every recess of inlayer at an interval and set up a blind hole.
The invention has the beneficial effects that:
1. the invention realizes the adjustment of the rigidity of the elastic pad by adjusting the concave holes, thereby enabling the elastic pad to meet different working condition requirements and expanding the application range of the elastic pad.
2. The surface area of the concave hole is adjusted by changing a plurality of parameters of the concave hole, so that the rigidity of the elastic pad is adjusted more flexibly, and the adjustment range is wider.
3. According to the invention, the elastic cushion is provided with the through hole and the blind hole, so that the deformation of the partition board in the vulcanization process and iron leakage are avoided, and the performance of the elastic cushion is improved.
Drawings
FIG. 1 is a schematic front view of a concave hole elastic pad structure;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of parameters of a well portion of an embodiment, wherein only one set of three layers of wells is shown for illustration;
in the figure: 1. the rubber, 2, the partition board, 3, the mounting hole, 4, the concave hole, 5, the blind hole and 6, the through hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example one
A rigidity adjusting method of a concave hole elastic cushion is disclosed, as shown in figures 1-2, the elastic cushion is composed of rubber 1 and a metal partition plate 2, the metal partition plate 2 is surrounded by the rubber 1 vulcanized outside, the whole body is in a circular ring shape, a mounting hole 3 is arranged in the middle, and a plurality of layers of concave holes 4 with the same center are arranged on the periphery of the mounting hole 3. The size of cushion free area can be adjusted through adjusting the number of piles of shrinkage pool 4, and then adjusts the rigidity of cushion, if under the unchangeable condition of the size of single shrinkage pool 4, increase the number of piles of shrinkage pool 4, just increased the area that all shrinkage pools 4 correspond, just also reduced the free area of cushion, whole rigidity can reduce. Wherein the number of layers can be two, three or four.
As shown in fig. 3, the length of the concave hole 4 can be changed by changing the included angle a between two short sides of each concave hole 4 along the radial direction, so as to change the surface area of the concave hole 4, and adjust the rigidity of the elastic pad. Under the condition that other sizes are not changed, the larger the included angle A is, the larger the length of the concave hole 4 is, the larger the surface area of the concave hole is, and the smaller the rigidity of the elastic cushion is; conversely, the smaller the included angle a, the smaller the length of the concave hole 4, the smaller the surface area thereof, and the greater the rigidity of the elastic pad. In this embodiment, the included angle a between the minor face of every layer of shrinkage pool 4 all sets to the same size, both made things convenient for processing, also made the rigidity everywhere of cushion more even, was favorable to bearing the load and makes the dispersion to the load, guarantees that each department atress is more even, improves holistic life. Meanwhile, the included angle A is set to be 15-17oThe problem that the whole performance of the elastic cushion is affected due to too low rigidity and too serious deformation of the elastic cushion because the bearing rubber area is too small caused by too large length of the concave hole 4 is avoided; and the problem that the overall rigidity of the elastic cushion is too high due to the fact that the length of the concave hole 4 is too small, and the adjustment range of the rigidity of the elastic cushion is influenced is also avoided.
The rigidity of the elastic pad can also be adjusted by changing the radius difference between the concentric circles corresponding to the two long sides of each concave hole 4 along the circumferential direction. Assuming that the concave holes 4 are three layers as shown in fig. 3, the radiuses of the concentric circles corresponding to the two long sides of the concave hole 4 at the outermost layer are respectively R1 and R1, and the radius difference is R1-R1; the radiuses of concentric circles corresponding to two long sides of the second layer of concave holes 4 are respectively R2 and R2, and the radius difference is R2-R2; the radiuses of concentric circles corresponding to two long sides of the concave hole 4 in the third layer are respectively R3 and R3, and the radius difference is R3-R3. When the concave holes 4 are four layers, the radiuses of the concentric circles corresponding to the two long sides of the concave hole 4 of the innermost fourth layer are respectively R4 and R4, and the radius difference is R4-R4. When the radius difference is smaller, the width of the concave hole 4 is smaller, and under the condition that other sizes are not changed, the surface area of the concave hole 4 is smaller, and the rigidity of the elastic pad is higher; conversely, when the difference in radius is larger, the larger the width of the concave hole 4, the larger the surface area, and the smaller the rigidity of the elastic pad. Similarly, this embodiment sets to the same size through two radius differences with every layer of shrinkage pool 4, has both helped processing, makes every partial rubber atress even again, is favorable to improving the fatigue life of cushion. Meanwhile, the radius difference is set to be 10-14mm, so that the influence on the performance of rubber around the concave hole 4 when the width of the concave hole 4 is too large is avoided; and the problem that the fatigue life of the elastic cushion is not facilitated due to too little rubber of a bearing part and too small bearing area is avoided, and the adjustment range of the integral rigidity of the elastic cushion is limited when the width is too small.
The rigidity of the elastic cushion can also be adjusted by adjusting the distance D between two adjacent layers of concave holes 4. In this embodiment, when the number of the concave holes 4 is three or four, the distance D between the concave holes 4 of adjacent layers is set to the same value, which is not only beneficial to processing, but also beneficial to improving the overall performance of the elastic pad. Meanwhile, the distance D is set to be 8-14mm, so that the phenomenon that when the distance is too small, the rubber bearing force of the free surface between the concave holes 4 is insufficient, the deformation is too large is avoided, and the adjustment range of the integral rigidity of the elastic cushion is limited when the distance is too large is also avoided.
As shown in fig. 2, the rigidity of the elastic pad can be adjusted by adjusting the depth H of the concave hole 4, and if the compression depth of the elastic pad is N when the elastic pad bears the maximum load, the depth H of the concave hole 4 has a large influence on the rigidity of the rubber pad when H is less than or equal to N/2, and the rubber pad has an inflection point with variable rigidity; when H > N/2, the depth H has less influence on the rigidity of the rubber pad. The depth of the concave hole 4 is set to be H > N/2 in the embodiment, so that the rigidity of the rubber pad is convenient to predict, the whole bearing area can be larger, and the rubber fatigue is facilitated.
In addition, the joint between the long edge and the short edge of the concave hole 4 is set to be connected with a round angle, the round angle is also arranged at the bottom of the concave hole 4, and the radius of the round angle is set to be 1-2mm, so that the rigidity of the elastic cushion can be finely adjusted, the stress of the rubber joint can be favorably reduced, the service life of the rubber is prolonged, and the elastic cushion can be favorably demoulded in the production process.
Example two
The embodiment relates to a vulcanization method of a concave hole elastic cushion, as shown in fig. 1, a through hole 6 is arranged on the elastic cushion, in the vulcanization process, a mold part passes through the through hole 6 to avoid the rotation of a partition plate 2, wherein the through hole 6 can be two, three or four, and the like, and is uniformly and symmetrically arranged.
Still avoid vulcanizing in-process baffle 2 through set up blind hole 5 in shrinkage pool 4 and warp too big, during the vulcanization, the mould part supports baffle 2 in blind hole 5 position department, and when the mould impact baffle 2 was advanced in the rubber stream, the mould part of blind hole 5 department provided the thrust reversal, avoided baffle 2 because of warping too big and expose the rubber surface, and then reduced baffle 2's corrosion resistance, reduced its life. The deformation will be greater when the diaphragm 2 is thinner, and therefore the number of blind holes 5 required will be greater; moreover, the deformation of the position near the outer edge of the elastic pad is larger than that of the position near the center of a circle, and the number of the blind holes 5 near the outer edge is larger than that of the blind holes 5 near the center of a circle. Therefore, it is preferable that the blind holes 5 are provided in all the recessed holes 4 at the outermost layer, and the number of the blind holes 5 near the center of the circle can be appropriately reduced, and of course, the blind holes 5 can be provided in all the recessed holes 4, so that the deformation of the separator 2 can be restricted to the maximum. The arrangement of the partial blind holes 5 can also adopt the following modes (the second layer of concave holes 4 refers to a layer close to the inner side of the outermost concave hole 4 at the outer edge of the elastic pad, the third layer of concave holes 4 refers to a layer close to the inner side of the second layer of concave holes 4, and the layer of concave holes 4 close to the circle center of the elastic pad is the innermost concave hole 4):
when the quantity of the concave holes 4 is two layers, the concave holes 4 at the inner layer can adopt a structure that one concave hole 4 is provided with one blind hole 5 at intervals.
When the quantity of shrinkage pool 4 is the three-layer, the shrinkage pool 4 of intermediate level all is equipped with blind hole 5, perhaps sets up a blind hole 5 at an interval shrinkage pool 4, and the shrinkage pool 4 of inlayer can set up a blind hole 5 at an interval.
When shrinkage pool 4 quantity is the four-layer, the shrinkage pool 4 on second floor all is equipped with blind hole 5, and the shrinkage pool 4 of third layer all is equipped with blind hole 5, perhaps sets up a blind hole 5 at a shrinkage pool 4 interval, and the shrinkage pool 4 of inlayer can set up a blind hole 5 at an interval.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. A rigidity adjusting method of a concave hole elastic cushion is characterized by comprising the following steps: the ratio of the free area of the elastic pad to the area of the concave hole is changed by adjusting the parameters of the concave hole (4), and then the rigidity of the elastic pad is changed.
2. The method for adjusting the rigidity of a dimpled elastic pad according to claim 1, wherein: the adjustment of the parameters of the concave holes (4) comprises adjustment of the number of layers of the concave holes (4), adjustment of an included angle between two short edges along the radial direction of each concave hole (4), adjustment of the radius difference between concentric circles corresponding to two long edges along the circumferential direction of each concave hole (4) and adjustment of the distance between two adjacent layers of concave holes (4).
3. The method for adjusting the rigidity of a dimple elastic pad according to claim 2, wherein: controlling the number of layers of the concave holes (4) to be 2-4;
the distance between two adjacent layers of concave holes (4) is controlled to be 8-14 mm.
4. The method for adjusting the rigidity of a dimple elastic pad according to claim 2, wherein: the included angle between two short sides of each concave hole (4) is controlled to be 15o-17o；
The corresponding radius difference between the two long sides of each concave hole (4) is controlled to be 10-14 mm.
5. The method for adjusting the rigidity of a dimple elastic pad according to claim 2, wherein: the adjustment of the parameters of the concave holes (4) also comprises the adjustment of the depth of each concave hole (4), and the depth of each concave hole (4) is more than one half of the compression depth of the elastic pad.
6. The method for adjusting the rigidity of a dimpled elastic pad according to claim 1, wherein: the adjustment of the parameters of the concave hole (4) also comprises that round corners are arranged at the joint of the long edge and the short edge of the concave hole (4) and the bottom of the concave hole, and the radius of each round corner is controlled to be 1-2 mm.
7. A vulcanization method of a concave hole elastic cushion is characterized by comprising the following steps: avoid it to take place horizontal displacement and rotation at the vulcanization in-process through set up through-hole (6) at the cushion, fix a position, avoid it to warp and expose the rubber surface at the vulcanization in-process through setting up blind hole (6) in shrinkage pool (4) to baffle (2).
8. A method of vulcanizing a dimpled elastic pad according to claim 7, wherein: more than two through holes (6) are symmetrically arranged on the elastic cushion.
9. A method of vulcanizing a dimpled elastic pad according to claim 7, wherein: the number of the blind holes (5) positioned on the outer layer of the elastic pad is more than or equal to that of the blind holes (5) positioned on the inner layer.
10. A method of vulcanizing a dimpled elastic pad according to claim 7, wherein: when the number of the concave holes (4) is two, a blind hole (5) is arranged in each concave hole (4) on the outer layer, and a blind hole (5) is arranged in each concave hole (4) on the inner layer or a blind hole (5) is arranged at intervals of one concave hole (4);
or: when the number of the concave holes (4) is three, a blind hole (5) is arranged in each concave hole (4) at the outer layer, a blind hole (5) is arranged in each concave hole (4) at the middle layer or a blind hole (5) is arranged at intervals of one concave hole (4), and a blind hole (5) is arranged in each concave hole (4) at the inner layer or a blind hole (5) is arranged at intervals of one concave hole (4);
or: when shrinkage pool (4) quantity is the quadruple layer, all be equipped with blind hole (5) in outermost every shrinkage pool (4), all be equipped with blind hole (5) in leaning on every shrinkage pool (4) of the second floor of outer department, all be equipped with blind hole (5) or shrinkage pool (4) in the interval of every shrinkage pool (4) of third layer and set up a blind hole (5), all be equipped with blind hole (5) or shrinkage pool (4) in the innermost every shrinkage pool (4) and set up a blind hole (5) in the interval.
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| CN202111128328.8A CN113883198B (en) | 2021-09-26 | 2021-09-26 | Vulcanization method of shrinkage pool elastic cushion |
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| CN202111128328.8A CN113883198B (en) | 2021-09-26 | 2021-09-26 | Vulcanization method of shrinkage pool elastic cushion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230247A (en) * | 2022-08-17 | 2022-10-25 | 沈阳工业大学 | Multi-region high-toughness bionic impact-resistant composite structure |
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| CN115230247A (en) * | 2022-08-17 | 2022-10-25 | 沈阳工业大学 | Multi-region high-toughness bionic impact-resistant composite structure |
| CN115230247B (en) * | 2022-08-17 | 2023-12-05 | 沈阳工业大学 | Multi-region high-strength-toughness bionic impact-resistant composite structure |
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