CN113400671A - Elastic vibration isolator and preparation process thereof - Google Patents
Elastic vibration isolator and preparation process thereof Download PDFInfo
- Publication number
- CN113400671A CN113400671A CN202110672879.4A CN202110672879A CN113400671A CN 113400671 A CN113400671 A CN 113400671A CN 202110672879 A CN202110672879 A CN 202110672879A CN 113400671 A CN113400671 A CN 113400671A
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- China
- Prior art keywords
- elastic
- vibration isolator
- elastic vibration
- fiber layer
- fiber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an elastic vibration isolator and a preparation process thereof, and mainly relates to the technical field of vibration reduction and isolation of an assembled track; the elastic column is internally provided with a plurality of fiber layers from bottom to top, and a certain distance is reserved between every two adjacent fiber layers; the rigidity of the elastic vibration isolator can be adjusted by changing the number of the fiber layers, and the rigidity requirement of various application scenes of the track can be met by combining the adjustment of the number of the elastic vibration isolators in unit area.
Description
Technical Field
The invention relates to the technical field of vibration reduction and isolation of an assembled track, in particular to an elastic vibration isolator and a preparation process thereof.
Background
At present, in an assembly type track structure of track traffic, in order to reduce noise generated in a vehicle running process, a damping layer is usually laid at the bottom of an assembly type track plate, due to different running requirements, the rigidity requirement of a track is also different, in order to meet the rigidity requirement of the track, the rigidity requirement of the track is generally realized by changing the material of the damping layer, the cost is high, and the requirements of different application scenes are difficult to meet.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an elastic vibration isolator and a preparation process thereof, wherein the rigidity of the elastic vibration isolator can be adjusted by changing the number of fiber layers, and the rigidity requirement of various application scenes of a track can be met by combining the adjustment of the number of the elastic vibration isolators in a unit area.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an elastic vibration isolator comprises an elastic column, wherein a plurality of fiber layers are sequentially arranged in the elastic column from bottom to top, and a certain distance is reserved between every two adjacent fiber layers.
Preferably, the elastic column is in a circular truncated cone shape.
Preferably, the fiber layer is made of carbon fiber, glass fiber or basalt fiber.
Preferably, the fiber layer is made of cloth fibers.
Preferably, the elastic column is provided with a central hole.
The preparation process of the elastic vibration isolator comprises the following steps:
s1, pouring polyurethane glue with a certain thickness into the die or paving a polyester film with a certain thickness, and scraping the upper surface of the polyester film;
s2, laying a fiber layer on the top of the polyurethane, and rolling the fiber layer by using a roller;
s3, pouring polyurethane glue with a certain thickness or paving a polyester film with a certain thickness on the top of the fiber layer, and scraping the upper surface of the fiber layer;
s4, repeating the steps S2-S3 according to design requirements, and pressurizing, preserving heat and shaping;
s5, taking out the polyurethane block in the mold after the polyurethane glue in the mold is naturally solidified and shaped;
and S6, cutting the polyurethane block obtained in the step S5 into a designed shape and a designed size by adopting water cutting.
Preferably, a heating plate is provided on an outer wall of the mold, and the mold is heated by the heating plate in steps S1-S3.
Preferably, in step S2, the fiber layer is heated before being laid.
Compared with the prior art, the invention has the beneficial effects that:
the rigidity of the elastic vibration isolator can be adjusted by changing the number of the fiber layers in the elastic column, and the rigidity of the track can be adjusted by combining the adjustment of the number of the elastic vibration isolators in unit area, so that the rigidity requirement of various application scenes of the track can be met, and the elastic vibration isolator is simple in structure and low in manufacturing cost; the preparation process of the elastic vibration isolator can meet the manufacturing requirement of the elastic vibration isolator, can be manually operated and automatically controlled by a machine, and can reduce the manufacturing cost of the elastic vibration isolator.
Drawings
Fig. 1 is a schematic structural view of the elastic vibration isolator of the present invention.
The reference numbers in the drawings: 1. an elastic column; 2. a fibrous layer; 3. a central bore.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example 1: the invention relates to an elastic vibration isolator which comprises an elastic column 1, wherein a plurality of fiber layers 2 are sequentially arranged in the elastic column 1 from bottom to top, a certain distance is reserved between every two adjacent fiber layers 2, the fiber layers 2 are pre-embedded in the elastic column 1, the fiber layers 2 are used as reinforcing layers, and the rigidity of the elastic vibration isolator can be adjusted by adjusting the number of the fiber layers 2. When the elastic vibration isolator is used, the rigidity of the track can be adjusted by adjusting the self rigidity of the elastic vibration isolator and combining the adjustment of the number of the elastic vibration isolators in unit area, the rigidity requirement of various application scenes of the track can be met, the structure is simple, and the manufacturing cost is low.
Preferably, in order to improve the stability of the elastic column support, the elastic column 1 is in a circular truncated cone shape.
Preferably, in order to increase the rigidity of the elastic vibration isolator, the fiber layer 2 may be made of carbon fiber, glass fiber, basalt fiber, or cloth fiber, so that a large rigidity can be obtained with a small number of fiber layers, and the manufacturing cost can be reduced.
Preferably, in order to reduce the deformation amount of the outer side of the elastic column, the elastic column 1 is provided with a central hole 3, and the deformation amount of the elastic column 1 to the outer side is reduced by reserving a margin for the deformation of the elastic column 1 at the position of the central hole 3.
Example 2: the invention relates to a preparation process of an elastic vibration isolator, which comprises the following steps:
s1, pouring polyurethane glue (or other elastic materials) with a certain thickness into the mould or paving a polyester film with a certain thickness, wherein the thickness of the polyurethane glue is determined according to design requirements, the upper surface of the polyurethane glue is scraped to be flat, a scraper can be manually adopted to scrape the polyurethane glue, and a mechanical arm can be adopted to automatically scrape the polyurethane glue in cooperation with the scraper;
s2, laying a fiber layer on the top of the polyurethane, rolling the fiber layer by using a roller, and laying the fiber layer manually or by using a laying trolley in cooperation with a track; the roller can be pushed by a manual or electric trolley;
s3, pouring polyurethane glue with a certain thickness or paving a polyester film with a certain thickness on the top of the fiber layer, and scraping the upper surface of the fiber layer, which is the same as the step S1;
s4, repeating the steps S2-S3 according to design requirements until a polyurethane block which meets the design height and the number of designed fiber layer layers is obtained;
s5, taking out the polyurethane block in the mold after the polyurethane glue in the mold is naturally solidified and shaped;
s6, in order to reduce damage to the elastic vibration insulators, the polyurethane block obtained in step S5 is cut into elastic vibration insulators of designed shapes and designed sizes by water cutting.
Preferably, in order to ensure the processing quality of the elastic vibration isolator, a heating plate is arranged on the outer wall of the mold, and in the steps S1-S3, the mold is heated by the heating plate, so that the polyurethane glue in the mold is always in a non-solidification state in the manufacturing process of the polyurethane block, and is synchronously solidified, thereby avoiding layering and ensuring the processing quality.
Preferably, in order to ensure the tightness between the fiber layer and the polyurethane adhesive, in the step S2, the fiber layer is heated before being laid, so that the upper surface of the polyurethane adhesive is solidified during the process of laying the fiber layer, the tightness between the fiber layer and the polyurethane adhesive is ensured, the occurrence of delamination is avoided, and the processing quality of the elastic vibration isolator is ensured.
The preparation process of the elastic vibration isolator can meet the manufacturing requirement of the elastic vibration isolator, can be manually operated and automatically controlled by a machine, and can reduce the manufacturing cost of the elastic vibration isolator.
Claims (8)
1. An elastic vibration isolator characterized in that: the elastic column comprises an elastic column (1), wherein a plurality of fiber layers (2) are sequentially arranged in the elastic column (1) from bottom to top, and certain distance is reserved between the fiber layers (2).
2. An elastic vibration isolator as claimed in claim 1, wherein: the elastic column (1) is in a round table shape.
3. An elastic vibration isolator as claimed in claim 1, wherein: the fiber layer (2) is made of carbon fiber or glass fiber or basalt fiber.
4. An elastic vibration isolator as claimed in claim 1, wherein: the fiber layer (2) is made of cloth fibers.
5. An elastic vibration isolator as claimed in claim 1, wherein: the elastic column (1) is provided with a central hole (3).
6. The process for producing an elastic vibration insulator according to any one of claims 1 to 5, comprising the steps of: s1, pouring polyurethane glue with a certain thickness into the die or paving a polyester film with a certain thickness, and scraping the upper surface of the polyester film;
s2, laying a fiber layer on the top of the polyurethane, and rolling the fiber layer by using a roller;
s3, pouring polyurethane glue with a certain thickness or paving a polyester film with a certain thickness on the top of the fiber layer, and scraping the upper surface of the fiber layer;
s4, repeating the steps S2-S3 according to design requirements, and pressurizing, preserving heat and shaping;
s5, taking out the polyurethane block in the mold after the polyurethane glue in the mold is naturally solidified and shaped;
and S6, cutting the polyurethane block obtained in the step S5 into a designed shape and a designed size by adopting water cutting.
7. The process for preparing an elastic vibration isolator according to claim 6, wherein a heating plate is provided on an outer wall of said mold, and in steps S1-S3, the mold is heated by the heating plate.
8. The process for producing an elastic vibration insulator according to claim 6, wherein in step S2, the fiber layer is heated before being laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110672879.4A CN113400671A (en) | 2021-06-17 | 2021-06-17 | Elastic vibration isolator and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110672879.4A CN113400671A (en) | 2021-06-17 | 2021-06-17 | Elastic vibration isolator and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113400671A true CN113400671A (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110672879.4A Pending CN113400671A (en) | 2021-06-17 | 2021-06-17 | Elastic vibration isolator and preparation process thereof |
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| Country | Link |
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| CN (1) | CN113400671A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050205749A1 (en) * | 2003-10-21 | 2005-09-22 | Campbell Scott D | Fiber mesh reinforced elastomeric vibration isolation pads |
| CN205907955U (en) * | 2016-07-06 | 2017-01-25 | 同济大学 | Subtract vibration isolation ground plate brick |
| CN106758567A (en) * | 2016-12-16 | 2017-05-31 | 京投科技（北京）有限公司 | A kind of elastic vibration isolation pad of steel rail vibration reduction fastener |
| CN110983870A (en) * | 2019-12-16 | 2020-04-10 | 王琴兰 | Elastic cushion plate with three-dimensional multidirectional reinforcement and manufacturing method thereof |
| CN111565921A (en) * | 2017-12-21 | 2020-08-21 | 巴斯夫欧洲公司 | Method for producing polyurethane sandwich molded parts |
| CN112796174A (en) * | 2021-01-27 | 2021-05-14 | 广州大学 | Train track vibration-damping rubber pad with predictable rigidity |
-
2021
- 2021-06-17 CN CN202110672879.4A patent/CN113400671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050205749A1 (en) * | 2003-10-21 | 2005-09-22 | Campbell Scott D | Fiber mesh reinforced elastomeric vibration isolation pads |
| CN205907955U (en) * | 2016-07-06 | 2017-01-25 | 同济大学 | Subtract vibration isolation ground plate brick |
| CN106758567A (en) * | 2016-12-16 | 2017-05-31 | 京投科技（北京）有限公司 | A kind of elastic vibration isolation pad of steel rail vibration reduction fastener |
| CN111565921A (en) * | 2017-12-21 | 2020-08-21 | 巴斯夫欧洲公司 | Method for producing polyurethane sandwich molded parts |
| CN110983870A (en) * | 2019-12-16 | 2020-04-10 | 王琴兰 | Elastic cushion plate with three-dimensional multidirectional reinforcement and manufacturing method thereof |
| CN112796174A (en) * | 2021-01-27 | 2021-05-14 | 广州大学 | Train track vibration-damping rubber pad with predictable rigidity |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210917 |
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| RJ01 | Rejection of invention patent application after publication |