CN112239971A - Elastic backing plate with shoulder and vibration-damping fastener - Google Patents
Elastic backing plate with shoulder and vibration-damping fastener Download PDFInfo
- Publication number
- CN112239971A CN112239971A CN202010868878.2A CN202010868878A CN112239971A CN 112239971 A CN112239971 A CN 112239971A CN 202010868878 A CN202010868878 A CN 202010868878A CN 112239971 A CN112239971 A CN 112239971A
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- Prior art keywords
- transverse
- backing plate
- limiting
- shoulder
- elastic
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Classifications
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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
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
- E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
- E01B9/688—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with internal cavities
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an elastic backing plate with a shoulder and a vibration damping fastener, wherein the elastic backing plate with the shoulder is arranged between an upper backing plate of the fastener and a lower backing plate of the fastener; the elastic backing plate with the shoulder blocks comprises a transverse elastic part, and the transverse elastic part is arranged between the transverse shoulder blocks of the lower backing plate and the transverse limiting part of the upper backing plate. According to the invention, the transverse shoulder structure and the middle rubber pad with transverse elastic limit are arranged, so that the higher transverse rigidity and the lower vertical rigidity of the fastener are unified, and the vibration reduction effect and the transverse stability of the fastener are improved.
Description
Technical Field
The specification relates to the field of rail transit, in particular to an elastic base plate with a shoulder and a vibration-damping fastener.
Background
How to solve the problem of the influence of vibration and noise on environment and resident life in rail transit becomes the focus of people paying attention to subway construction and also becomes one of the keys of sustainable development of urban rail transit construction. The traditional vibration reduction technology is limited in vibration reduction and noise reduction, the vibration and noise generated when a train runs through can still directly influence the life and health of people, and adverse effects are caused to the surrounding environment to a certain extent, so that the traditional vibration reduction technology is obviously not applicable in special areas with high vibration reduction requirements.
Some types of damping fasteners are also put forward in the market, and a certain damping effect is achieved. When the damping fastener is designed and developed, how to simultaneously realize lower vertical rigidity and transverse rigidity is the key direction of fastener research and development, and is also an important premise for realizing the damping performance and the safety performance of the fastener.
Generally speaking, the vertical stiffness and the transverse stiffness of the damping fastener have a highly positive correlation, and the lower the vertical stiffness, the better the damping effect of the damping fastener is, but the poorer the transverse stability is, i.e. the transverse stiffness of the fastener is also relatively lower. The insufficient transverse rigidity of the fastener can cause the dynamic expansion of the track gauge of the track system to be increased, the dynamic stability of the track system is reduced, and adverse effects are caused to the track system and a normal vehicle.
Disclosure of Invention
In order to simultaneously realize lower vertical rigidity and higher transverse rigidity of the fastener, the invention provides an elastic base plate with a shoulder and a vibration-damping fastener. In order to achieve the above objects, in one aspect, the present specification provides an elastic pad with shoulder,
the elastic backing plate with the shoulder is arranged between the upper backing plate of the fastener and the lower backing plate of the fastener;
the elastic backing plate with the shoulder blocks comprises a transverse elastic part, and the transverse elastic part is arranged between the transverse shoulder blocks of the lower backing plate and the transverse limiting part of the upper backing plate.
In another aspect, embodiments of the present specification further provide a vibration damping fastener, including:
comprises an elastic base plate with a shoulder, an upper base plate, a lower base plate and a nylon sleeve;
the lower base plate is also provided with at least one hollow boss, and the vertical surface of the hollow boss is provided with a clamping groove;
the nylon cover includes upper portion and lower part, the lower part be provided with the fifth arch of screens groove matching, upper portion is provided with the ladder flange, the ladder flange is pressed on the upper surface of upper padding plate.
According to the technical scheme provided by the embodiment of the specification, the lower vertical rigidity and the higher transverse rigidity of the fastener can be realized simultaneously.
Drawings
FIG. 1 is a cross-sectional view of a vibration-reducing fastener according to some embodiments of the present disclosure.
Fig. 2 is a schematic structural view of a lower shim plate according to some embodiments of the present disclosure.
Fig. 3 is a schematic structural view of an upper mat according to some embodiments of the present disclosure.
Fig. 4 is a schematic structural view of an elastic pad according to some embodiments of the present disclosure.
Reference numerals:
1. a lower base plate; 101. a hollow boss; 102. a clamping groove; 103. a transverse shoulder; 104. a second positioning member; 2. an upper base plate; 201. a lateral limit piece; 3. an elastic backing plate; 301. a transverse elastic portion; 302. first positioning piece
Detailed Description
The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides an elastic backing plate 3 with a shoulder, which can realize the unification of higher transverse rigidity and lower vertical rigidity of a fastener and improve the vibration reduction effect and the transverse stability of the fastener.
This will be described in detail with reference to fig. 1 to 4.
Some embodiments of the present disclosure provide an elastic backing plate 3 with shoulder, the elastic backing plate 3 with shoulder is disposed between an upper backing plate 2 of a fastener and a lower backing plate 1 of the fastener; the shouldered elastic pad 3 comprises a transverse elastic portion 301, and the transverse elastic portion 301 is disposed between the transverse shouldering 103 of the lower pad 1 and the transverse stopper 201 of the upper pad 2.
In some embodiments herein, the shouldered elastic pad 3 further comprises a vertical elastic portion disposed between the upper pad 2 and the lower pad 1.
In some embodiments of the present disclosure, the lateral elastic portion 301 includes a first position-limiting surface, the first position-limiting surface is disposed to match with a second position-limiting surface of the lateral shoulder 103, and the first position-limiting surface and the second position-limiting surface form the same angle with the vertical plane. Maintaining the same angle facilitates better matching.
In some embodiments of the present disclosure, the lateral limiting member 201 of the upper cushion body includes a third limiting surface, the third limiting surface is disposed in a matching manner with the first limiting surface, and the first limiting surface is disposed between the third limiting surface and the second limiting surface.
In some embodiments of the present disclosure, the transverse elastic portion 301 and the vertical elastic portion are integrally formed, and naturally, it should be noted that in other embodiments, the transverse elastic portion and the vertical elastic portion may be separate components.
In some embodiments of the present disclosure, a first positioning element 302 is disposed on a first position-limiting surface of the transverse elastic portion 301, the first positioning element 302 is positioned in a matching manner with a second positioning element 104 disposed on a second position-limiting surface of the transverse blocking shoulder 103, the first positioning element 302 includes a first protrusion and/or a first hole, the second positioning element 104 includes a second protrusion and/or a second hole, the first protrusion is positioned in a matching manner with the second hole, and/or the first hole is positioned in a matching manner with the second protrusion. Here, the first protrusion corresponds to the second hole, and the second protrusion corresponds to the first hole, and here, the shape type of the hole is not limited, and the hole may be a through hole, a blind hole, or a groove.
In some embodiments of the present disclosure, the vertical elastic portion is provided with a third positioning element, the third positioning element is positioned to match with a fourth positioning element provided on the lower cushion plate 1, the third positioning element includes a third protrusion and/or a third hole, and the fourth positioning element includes a fourth protrusion and/or a fourth hole.
The invention also provides a vibration damping fastener, which comprises an elastic base plate 3 with a shoulder, an upper base plate 2, a lower base plate 1 and a nylon sleeve; the lower backing plate 1 is also provided with at least one hollow boss 101, and the vertical surface of the hollow boss 101 is provided with a clamping groove 102; the nylon cover includes upper and lower parts, and the lower part is provided with the fifth arch that matches with screens groove 102, and the upper portion is provided with the ladder flange, and the ladder flange is pressed on the upper surface of upper padding plate 2.
In some embodiments of the present description, a first lateral retaining shoulder and a second lateral retaining shoulder are respectively disposed on two sides of the lower cushion plate 1;
a first transverse limiting piece and a second transverse limiting piece are respectively arranged on two sides of the upper backing plate 2;
the two sides of the elastic backing plate 3 with the shoulder are respectively provided with a first transverse elastic part and a second transverse elastic part, the first elastic part is arranged between the first transverse shoulder and the first transverse limiting part, and the second transverse elastic part is arranged between the second transverse shoulder and the second transverse limiting part.
The detailed explanation is as follows by combining the material and type of the components used in the specific implementation working condition, wherein the elastic cushion plate with the middle shoulder is provided with a vertical cushion plate and a transverse cushion plate which are of an integrated structure. The vertical base plate is positioned at the lower part of the upper iron base plate and provides vertical pressure by the upper iron base plate. Meanwhile, the two sides of the lower iron base plate are provided with transverse retaining shoulders, the upper iron base plate is provided with a transverse limiting plane, transverse limiting surfaces are arranged on the two sides corresponding to the upper iron base plate, and the transverse base plate on the elastic base plate with the retaining shoulders in the middle is arranged between the transverse retaining shoulders of the lower iron base plate and the transverse limiting surfaces of the upper iron base plate. When the fastener is applied, the transverse retaining shoulder and the transverse base plate provide transverse limit for the upper iron base plate, so that transverse limit is provided for the upper iron base plate, and the integral transverse rigidity of the fastener is effectively improved.
The lower iron base plate is provided with a hollow boss, and a clamping groove clamped with the nylon sleeve is arranged on the vertical surface of the boss; the nylon sleeve is provided with a bulge corresponding to the clamping groove on the boss of the lower backing plate, and the upper part of the nylon sleeve is provided with a step flange. After the assembly, the protruding structure of the nylon sleeve and the clamping groove of the boss of the lower backing plate form concave-convex clamping matching connection, the upper stepped flange is pressed on the upper surface of the upper backing plate, and meanwhile, the elastic backing plate with the shoulder is clamped between the upper iron backing plate and the lower iron backing plate, so that the pre-assembly design of the upper iron backing plate, the lower iron backing plate, the elastic backing plate with the shoulder and the nylon sleeve is realized.
The transverse base plate is provided with a bulge or a through hole, the two sides of the lower iron base plate are provided with transverse retaining shoulders, the transverse retaining shoulders are provided with through holes or bulges, and the through holes or the bulges on the transverse retaining shoulders are respectively and correspondingly matched with the bulges or the through holes on the transverse base plate to form the positioning of the transverse base plate. Meanwhile, a vertical base plate is arranged on the elastic base plate with the middle shoulder, a central bulge is arranged on the vertical base plate, a through hole or a groove is arranged in the center of the lower iron base plate, and the central bulge on the vertical base plate is correspondingly matched with the through hole or the groove on the lower iron base plate to position the vertical base plate. In addition, as mentioned above, the lower iron backing plate is provided with the hollow boss, the vertical backing plate is provided with the through hole, and the through hole is sleeved on the hollow boss to further position the vertical backing plate.
Furthermore, a transverse backing plate is arranged on the elastic backing plate with the shoulder in the middle, and transverse shoulders are arranged on two sides of the lower iron backing plate. The transverse blocking shoulder of the lower iron base plate is provided with a limiting surface, the limiting surface and the vertical surface form a certain angle, meanwhile, the limiting surface of the transverse base plate on the middle rubber pad and the vertical surface also form the same angle, and the two limiting surfaces are matched with each other. In addition, two sides of the upper iron base plate are provided with transverse limiting surfaces, and the other surface of the transverse base plate is matched with the transverse limiting surfaces of the upper iron base plate.
In conclusion, the fastener can realize the unification of higher transverse rigidity and lower vertical rigidity of the fastener, and improves the vibration reduction effect and the transverse stability of the fastener.
Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.
Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.
All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.
A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.
The above embodiments are only a few embodiments of the present invention, and the embodiments of the present invention are described above, but the present invention is only used for the understanding of the present invention, and is not limited to the embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An elastic backing plate with a shoulder is characterized in that,
the elastic backing plate with the shoulder is arranged between the upper backing plate of the fastener and the lower backing plate of the fastener;
the elastic backing plate with the shoulder blocks comprises a transverse elastic part, and the transverse elastic part is arranged between the transverse shoulder blocks of the lower backing plate and the transverse limiting part of the upper backing plate.
2. The shouldered resilient pad of claim 1,
the elastic backing plate with the shoulder blocks further comprises a vertical elastic part, and the vertical elastic part is arranged between the upper backing plate and the lower backing plate.
3. The shouldered resilient pad of claim 2,
the transverse elastic part comprises a first limiting surface, the first limiting surface is matched with a second limiting surface of the transverse retaining shoulder, and the first limiting surface and the second limiting surface form the same angle with the vertical surface.
4. The shouldered resilient pad of claim 3,
the transverse limiting piece of the upper cushion body comprises a third limiting face, the third limiting face is matched with the first limiting face, and the first limiting face is arranged between the third limiting face and the second limiting face.
5. The shouldered resilient pad of claim 4 further comprising,
the transverse elastic part and the vertical elastic part are integrally formed.
6. The shouldered elastic pad according to claim 3 or 4,
the first locating piece is arranged on a first limiting face of the transverse elastic part, the first locating piece is matched with a second locating piece arranged on a second limiting face of the transverse retaining shoulder for locating, the first locating piece comprises a first protrusion and/or a first hole, the second locating piece comprises a second protrusion and/or a second hole, the first protrusion is matched with the second hole for locating, and/or the first hole is matched with the second protrusion for locating.
7. The shouldered resilient pad of claim 6,
the vertical elastic part is provided with a third positioning piece, the third positioning piece is matched with a fourth positioning piece arranged on the lower cushion plate for positioning, the third positioning piece comprises a third bulge and/or a third hole, and the fourth positioning piece comprises a fourth bulge and/or a fourth hole.
8. A vibration-damping fastener is characterized in that,
comprises the elastic backing plate with the shoulder, the upper backing plate and the lower backing plate as claimed in any one of claims 1 to 7, and further comprises a nylon sleeve;
the lower base plate is also provided with at least one hollow boss, and the vertical surface of the hollow boss is provided with a clamping groove;
the nylon cover includes upper portion and lower part, the lower part be provided with the fifth arch of screens groove matching, upper portion is provided with the ladder flange, the ladder flange is pressed on the upper surface of upper padding plate.
9. The vibration-damped fastener according to claim 8,
a first transverse retaining shoulder and a second transverse retaining shoulder are respectively arranged on two sides of the lower base plate;
a first transverse limiting piece and a second transverse limiting piece are respectively arranged on two sides of the upper backing plate;
the two sides of the elastic backing plate with the shoulder blocks are respectively provided with a first transverse elastic part and a second transverse elastic part, the first elastic part is arranged between the first transverse shoulder blocks and the first transverse limiting parts, and the second transverse elastic part is arranged between the second transverse shoulder blocks and the second transverse limiting parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868878.2A CN112239971A (en) | 2020-08-25 | 2020-08-25 | Elastic backing plate with shoulder and vibration-damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868878.2A CN112239971A (en) | 2020-08-25 | 2020-08-25 | Elastic backing plate with shoulder and vibration-damping fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112239971A true CN112239971A (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010868878.2A Pending CN112239971A (en) | 2020-08-25 | 2020-08-25 | Elastic backing plate with shoulder and vibration-damping fastener |
Country Status (1)
| Country | Link |
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| CN (1) | CN112239971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790668A (en) * | 2022-04-25 | 2022-07-26 | 上海工程技术大学 | Low-height vibration reduction fastener with side baffles |
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| WO2015034392A1 (en) * | 2013-09-04 | 2015-03-12 | Общество С Ограниченной Ответственностью Научно-Производственная Фирма "Мастер Класс" | Railroad switch rail-fastening device (variants) |
| CN106930160A (en) * | 2017-02-16 | 2017-07-07 | 京投科技（北京）有限公司 | A kind of steel rail vibration reduction fastener for railcar phase library interior lines |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| CN108867204A (en) * | 2018-08-10 | 2018-11-23 | 洛阳科博思新材料科技有限公司 | A kind of shoulder block formula fastener system |
| CN110117922A (en) * | 2019-05-27 | 2019-08-13 | 西安卓控环保科技有限公司 | A kind of shoulder block formula Damping fastening suitable for subway main track |
| CN110863394A (en) * | 2019-11-04 | 2020-03-06 | 洛阳科博思新材料科技有限公司 | Track damping fastener |
| CN110924241A (en) * | 2019-08-05 | 2020-03-27 | 中铁二院工程集团有限责任公司 | Double-layer track vibration reduction fastener |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015034392A1 (en) * | 2013-09-04 | 2015-03-12 | Общество С Ограниченной Ответственностью Научно-Производственная Фирма "Мастер Класс" | Railroad switch rail-fastening device (variants) |
| CN106930160A (en) * | 2017-02-16 | 2017-07-07 | 京投科技（北京）有限公司 | A kind of steel rail vibration reduction fastener for railcar phase library interior lines |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| CN108867204A (en) * | 2018-08-10 | 2018-11-23 | 洛阳科博思新材料科技有限公司 | A kind of shoulder block formula fastener system |
| CN110117922A (en) * | 2019-05-27 | 2019-08-13 | 西安卓控环保科技有限公司 | A kind of shoulder block formula Damping fastening suitable for subway main track |
| CN110924241A (en) * | 2019-08-05 | 2020-03-27 | 中铁二院工程集团有限责任公司 | Double-layer track vibration reduction fastener |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790668A (en) * | 2022-04-25 | 2022-07-26 | 上海工程技术大学 | Low-height vibration reduction fastener with side baffles |
| CN114790668B (en) * | 2022-04-25 | 2024-02-27 | 上海工程技术大学 | Low-height vibration reduction fastener with side block |
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Application publication date: 20210119 |