CN110409227B - Low-height turnout vibration damping fastener and preparation method thereof - Google Patents
Low-height turnout vibration damping fastener and preparation method thereof Download PDFInfo
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- CN110409227B CN110409227B CN201910333313.1A CN201910333313A CN110409227B CN 110409227 B CN110409227 B CN 110409227B CN 201910333313 A CN201910333313 A CN 201910333313A CN 110409227 B CN110409227 B CN 110409227B
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- 238000013016 damping Methods 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 30
- 229910052742 iron Inorganic materials 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 241001669679 Eleotris Species 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a low-height turnout vibration damping fastener and a preparation method thereof, wherein the low-height turnout vibration damping fastener sequentially comprises an upper base plate, a middle rubber pad and a lower base plate from top to bottom, the upper base plate and the lower base plate are connected with each other through a self-locking column, and a bottom plate connecting sleeve is arranged between the self-locking column and the upper base plate; the lower backing plate has a sheet-like structure; the sheet-shaped lower backing plate is formed in a stamping mode. The invention simplifies the lower iron plate into the stainless steel sheet pad, effectively reduces the height of the lower backing plate and improves the stability of the fastener; in addition, the invention independently punches and processes the partial structure through mutually independent stamping dies, thereby effectively reducing the complexity of the stamping dies, reducing the number of the dies, reducing the requirement on the stamping capability of stamping equipment and improving the universality of the dies.
Description
Technical Field
The invention relates to the field of railway track components, in particular to a low-height turnout vibration damping fastener and a preparation method thereof.
Background
Along with the development of rail transit industry in China, vibration reduction fasteners applied to rail transit are increasingly widely applied.
For example, chinese patent application publication No. CN109295817a discloses a low installation height double-layer nonlinear fastener system comprising an upper iron pad, a middle rubber pad, a lower iron pad, a nylon self-locking sleeve, and an anchor bolt; the middle rubber backing plate is arranged between the upper iron backing plate and the lower iron backing plate; the lower iron base plate is provided with a raised upright post, the nylon self-locking sleeve is matched with the raised upright post to lock and connect the upper iron base plate, the middle rubber base plate and the lower iron base plate together, and the fastening system is fastened on the ballast bed foundation by the anchor bolts; the upper surface of the lower iron backing plate is provided with a pit, and the middle rubber backing plate is at least partially arranged in the pit on the lower iron plate. The double-layer nonlinear fastener system with low installation height provided by the invention can effectively reduce the overall installation height of the fastener under the condition of not changing the thickness of parts; in addition, the lower iron base plate and the middle rubber base plate are provided with matched positioning bodies, the positioning bodies effectively prevent the middle rubber base plate from falling out in the transportation and installation process, and the stability and the overall performance of the fastener are improved.
Chinese patent application publication No. CN207987631U discloses a double-layer vibration damping fastener, which includes an upper pad, a middle rubber pad, a lower pad, a connecting sleeve and an anchor bolt; the middle rubber pad is arranged between the upper base plate and the lower base plate; the lower backing plate is provided with a convex upright post, the connecting sleeve is matched with the convex upright post to lock and connect the upper backing plate, the middle rubber pad and the lower backing plate together, and the anchor bolt is used for fastening the fastener on the ballast bed; the upper backing plate is provided with a steel rail connecting piece, and the steel rail connecting piece is provided with a spring strip accommodating hole; the upper backing plate is provided with a drain hole; the drain hole penetrates through the upper base plate and forms a through hole with the elastic strip accommodating hole. The invention can timely drain accumulated water and effectively limit the accumulated water quantity; thereby prolonging the service life of the spring strip and the steel rail connecting piece.
For the existing turnout section, if vibration reduction is carried out by adopting a vibration reduction fastener, the height of the vibration reduction fastener of the turnout is required to be not more than 45mm. The prior art rail pad has a thickness of about 10mm. The mounting height of the fastener is reduced, and the stability and the damping performance of the fastener are improved. Therefore, how to effectively reduce the height of the vibration damping fastener, especially the thickness of the rail pad, while ensuring the performance of the product becomes the focus and focus of research in the field.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention discloses a low-height turnout vibration damping fastener and a preparation method thereof.
The invention is realized by the following technical scheme:
The low-height turnout vibration damping fastener sequentially comprises an upper base plate, a middle rubber pad and a lower base plate from top to bottom, wherein the upper base plate and the lower base plate are connected with each other through a self-locking column, and a base plate connecting sleeve is arranged between the self-locking column and the upper base plate; the lower pad has a thin plate-like structure.
Further, the lower backing plate is provided with a self-locking column sleeving through hole matched with the lower boss of the self-locking column in shape.
Further, the self-locking column sleeving through hole and the lower boss are round, elliptic or polygonal.
Further, a self-locking column sleeving bulge is arranged at the periphery of the self-locking column sleeving through hole.
Further, a limit groove is arranged on the self-locking column sleeving protrusion; the lower boss is provided with an anti-rotation notch matched with the limit groove.
Further, the lower base plate is provided with a rubber pad positioning through hole matched with the rubber pad positioning groove of the middle rubber pad in shape.
Further, rubber pad positioning protrusions are arranged on the periphery of the rubber pad positioning through holes.
Further, the edge of the lower backing plate is provided with a limit flanging.
Further, the device also comprises a coupling backing plate, wherein the coupling backing plate is arranged at the lower end of the lower backing plate.
Further, the rubber pad through hole of the middle rubber pad is provided with an oval structure.
The manufacturing method of the low-height turnout vibration-damping fastener comprises the step of processing and manufacturing the lower backing plate by a method of stamping a metal plate.
Further, the stamping is any one of integral stamping or partial independent stamping; the whole stamping adopts a whole stamping die to stamp all the structures of the lower backing plate; the local independent stamping adopts a local stamping die to respectively stamp each independent structure of the lower backing plate; the independent structure comprises one or more of a limit flanging, a self-locking column sleeving bulge, a limit groove, a rubber pad positioning bulge, a self-locking column sleeving through hole and a rubber pad positioning through hole.
Compared with the prior art, the invention has the advantages that: the invention simplifies the lower iron plate into the stainless steel sheet pad, effectively reduces the height of the lower backing plate and improves the stability of the fastener. The self-locking column is of an independent structure, the bottom supporting surface is enlarged, and the self-locking column is provided with an appearance structure and a rotation stopping structure which are adaptive to the stamping structure on the steel plate. On the basis of reducing the height of the rubber pad, the invention ensures that the lower base plate can provide a good supporting surface and a locating surface for the rubber pad and ensures the fixed locking effect. In addition, the lower iron plate can be integrally punched, and the independent structures of the lower iron plate can be respectively punched, and one or more of the limit flanging, the self-locking column sleeve bulge, the limit groove, the rubber pad positioning bulge, the self-locking column sleeve through hole and the rubber pad positioning through hole can be independently punched, so that the die structure can be simplified, the weight of the die can be reduced, the requirement on tonnage of punching equipment can be reduced, the universality of the die of the lower iron plate can be improved, and the manufacturing cost of the die can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following brief description will be given to the accompanying drawings, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the first perspective view of the low-height turnout vibration damping fastener of the embodiment of the invention;
fig. 2: a second perspective view of the low-height switch damping fastener of the embodiment of the invention;
fig. 3: the low-height turnout vibration damping fastener is a schematic top view;
fig. 4: the explosion schematic diagram of the low-height turnout vibration damping fastener of the embodiment of the invention;
Fig. 5: the cross-section schematic diagram of the low-height turnout vibration damping fastener of the embodiment of the invention;
Fig. 6: the embodiment of the invention provides a partial enlarged schematic diagram of a low-height turnout vibration damping fastener;
Fig. 7: the embodiment of the invention provides a perspective schematic view of a first middle rubber pad of a low-height turnout vibration damping fastener;
fig. 8: the low-height turnout vibration damping fastener is a perspective schematic diagram of a first middle rubber pad and a second middle rubber pad;
fig. 9: the side view of the self-locking column of the low-height switch damping fastener of embodiment 1 of the invention;
Fig. 10: the cross-sectional schematic view of the self-locking column of the low-height switch damping fastener of embodiment 1 of the invention;
fig. 11: the self-locking column of the low-height switch damping fastener of the embodiment 1 of the invention is a schematic top view;
Fig. 12: the low-height turnout vibration damping fastener of the embodiment 1 of the invention is a perspective schematic diagram of a self-locking column;
Fig. 13: the lower pad of the low-height switch damping fastener of embodiment 1 of the invention is a perspective view;
fig. 14: the side view of the self-locking column of the low-height switch damping fastener of embodiment 2 of the invention;
fig. 15: the cross-sectional schematic view of the self-locking column of the low-height switch damping fastener of embodiment 2 of the invention;
Fig. 16: the embodiment 2 of the invention is a schematic top view of a self-locking column of a low-height turnout vibration damping fastener;
Fig. 17: the low-height turnout vibration damping fastener of the embodiment 2 of the invention is a perspective schematic diagram of a self-locking column;
Fig. 18: a schematic perspective view of the lower pad of the low-height switch damping fastener of embodiment 2 of the present invention.
In order to further clarify the structure of the present invention and the connection between the components, the following reference numerals are given and are illustrated:
The low-height turnout vibration damping fastener comprises a low-height turnout vibration damping fastener body-1, a self-locking column-2, an upper base plate-3, a lower base plate-4, a middle rubber pad-5, a coupling base plate-6, a base plate connecting sleeve-7, an anti-rotation notch-21, a lower boss-22, an upper boss-23, a toothed upper surface-24, a middle column-25, a track gauge block-31, a limit flanging-41, a self-locking column sleeve-joint protrusion-42, a limit groove-43, a rubber pad positioning protrusion-44, a self-locking column sleeve-joint through hole-45, a rubber pad positioning through hole-46, a first rubber pad-51, a second rubber pad-52, a rubber pad positioning groove-501, a rubber pad positioning hole-502 and a rubber pad through hole-503.
The technical scheme of the invention can be more clearly understood and described by the description of the reference numerals in combination with the embodiment of the invention.
Detailed Description
In order to make the technical means of the present invention achieve the objects and effects easily understood, the following describes embodiments of the present invention in detail with reference to the specific drawings.
It is to be noted that all terms used for directional and positional indication in the present invention, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc. are merely used to explain the relative positional relationship, connection, etc. between the components in a particular state (as shown in the drawings), and are merely for convenience of description of the present invention, and do not require that the present invention must be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1-5, the embodiment of the invention provides a low-height turnout vibration damping fastener 1, wherein the low-height turnout vibration damping fastener 1 sequentially comprises an upper base plate 3, a middle rubber pad 5 and a lower base plate 4 from top to bottom, the upper base plate 3 and the lower base plate 4 are connected with each other through a self-locking column 2, a bottom plate connecting sleeve 7 is arranged between the self-locking column 2 and the upper base plate 3, and the plate connecting sleeve 7 is made of glass fiber reinforced nylon material; the lower pad 4 has a thin plate-like structure.
The low-height switch damper clip 1 is used to enable the track to be effectively secured to the sleeper, maintaining the gauge, and preventing movement of the rail relative to the sleeper. The low-height turnout vibration damping fastener 1 is preassembled before delivery, and in actual installation and use of a construction site, a spring strip buckling piece is adopted to fix a steel rail on a gauge block 31 on the upper surface of the upper base plate 3. The self-locking column 2 is adopted to connect the upper base plate 3 and the lower base plate 4 with each other, and the upper base plate 3 and the lower base plate 4 are provided with middle rubber pads which play a role in vibration reduction and noise reduction. In some embodiments of the present invention, the low-height switch damping fastener 1 further includes a coupling pad 6, where the coupling pad 6 is disposed at the lower end of the lower pad 4 and is made of a low-density polyethylene material. The upper end of the self-locking column 2 can be covered with a cover plate. The upper pad 3, the middle pad 5 and the lower pad 4 are fixed on the sleeper by penetrating the self-locking column by using fixing pieces such as bolts. The bottom plate connecting sleeve 7 is sleeved between the self-locking column 2 and the upper base plate 3 and is used for connecting the self-locking column 2 and the upper base plate 3 with each other. The lower backing plate 4 is provided with a self-locking column sleeving through hole 45 which enables the self-locking column 2 to extend in.
In the embodiment of the invention, the lower pad 4 is arranged into a thin plate structure, and the upper pad 3 and the lower pad 4 are connected by adopting the self-locking column 2, so that the height of the lower pad 4 and the total height of the low-height turnout vibration damping fastener 1 are effectively reduced. Referring to fig. 5, after the installation is completed, the bottom surface of the self-locking column 2 is flush with the bottom surface of the coupling pad 6. The top surface of the self-locking column 2 is slightly higher than the top surface of the upper base plate 3. The bottom plate connecting sleeve 7 is sleeved on the outer periphery of the self-locking column 2. By the technical scheme of the embodiment of the invention, the high turnout vibration damping fastener 1 can be more stably fixed on the sleeper, and rail noise and vibration are further reduced.
In the embodiment of the present invention, the shape of the self-locking column sleeving through hole 45 on the lower base plate 4 is matched with the shape of the lower boss 22 of the self-locking column 2. The self-locking post-engaging through hole 45 and the lower boss 22 are circular, elliptical or polygonal in shape. When the shape of the self-locking column fitting through hole 45 and the shape of the lower boss 22 are polygonal such as rectangular, the movement of the self-locking column 2 relative to the lower backing plate 4 can be further prevented, thereby omitting the locking structure and reducing the fittings and processing cost.
Referring to fig. 6, in the embodiment of the present invention, the self-locking column 2 includes an upper boss 23, a middle column 25 and a lower boss 22 sequentially from top to bottom, and an upper surface of the upper boss 23 is a toothed upper surface 24. The periphery of the self-locking column sleeving through hole 45 is provided with a self-locking column sleeving bulge 42. After the lower tie plate is mounted on the sleeper, the self-locking column nesting protrusions 42 of the lower tie plate 4 tightly press the outer periphery of the lower boss 22 of the self-locking column 2.
In some embodiments of the present invention, the self-locking pillar engaging protrusion 42 is provided with a limiting groove 43; the lower boss 22 is provided with an anti-rotation notch 21 matched with the limit groove 43. Through the structure, the self-locking column 2 can be prevented from moving relative to the lower base plate 4, and the connecting and fixing effect is improved.
In some embodiments of the present invention, the edge of the lower pad 4 is provided with a limit flange 41. The limit flanges 41 are used for limiting the movement of the intermediate rubber pad 5. The lower pad 4 is provided with a rubber pad positioning through hole 46 which is matched with the shape of the rubber pad positioning groove 501 of the middle rubber pad 5. Rubber pad positioning protrusions 44 are arranged on the periphery of the rubber pad positioning through holes 46.
Referring to fig. 7 to 8, in the embodiment of the present invention, the middle rubber pad 5 includes a first rubber pad 51 and a second rubber pad 52 which are symmetrically disposed, have the same shape, and are used by being spliced with each other. The first rubber pad 51 and the second rubber pad 52 each include a rubber pad positioning groove 501, a rubber pad positioning hole 502, and a rubber pad through hole 503. The rubber pad positioning groove 501 of the first rubber pad 51 and the rubber pad positioning groove 501 of the second rubber pad 52 form a rectangular or round-like through hole together after being spliced, and are used for matching with the rubber pad positioning through hole 46 on the lower backing plate 4. The positions of the rubber pad positioning holes 502 and the positions of the gauge blocks 31 correspond to each other. The self-locking column 2 penetrates through the rubber pad through hole 503. In some embodiments of the present invention, the rubber pad through hole 503 of the middle rubber pad 5 has an elliptical structure. So that it is suitable for self-locking 2 and fasteners with different eccentric amounts.
The lower pad 4 of the embodiment of the present invention is manufactured by punching a metal plate, and the self-locking post-engaging protrusion 42 and the limit groove 43 are formed by punching. The lower backing plate 4 provided by the embodiment of the invention has a simple structure and is manufactured. On the basis of lowering the fastener, the stable connection of the fastener can be ensured through the arrangement of the self-locking post sleeve protrusion 42 and the limiting groove 43.
The embodiment of the invention also provides a manufacturing method of the low-height turnout vibration damping fastener, and the lower backing plate 4 is manufactured by stamping a metal plate. The stamping method utilizes a die to make sheet metal into various shapes and structures on a press. Specifically, the sheet material is directly subjected to deformation force in the mold and deformed, so that a certain shape, size and performance are obtained. In the embodiment of the invention, the lower backing plate 4 is processed in a stamping device by adopting plate processing and a die. Wherein the stamping is any one of integral stamping or local independent stamping; the whole stamping adopts a whole stamping die to stamp the whole structure of the lower base plate 4; the local independent stamping adopts a local stamping die to respectively stamp each independent structure of the lower base plate 4; the independent structure comprises one or more of a limit flanging 41, a self-locking column sleeving bulge 42, a limit groove 43, a rubber pad positioning bulge 44, a self-locking column sleeving through hole 45 and a rubber pad positioning through hole 46.
Example 1
Referring to fig. 9-13, embodiment 1 of the present invention provides a low-height switch damping fastener 1, where the low-height switch damping fastener 1 sequentially includes, from top to bottom, an upper pad 3, a middle rubber pad 5, and a lower pad 4, the upper pad 3 and the lower pad 4 are connected to each other by a self-locking column 2, a bottom plate connecting sleeve 7 is disposed between the self-locking column 2 and the upper pad 3, and the lower pad 4 has a sheet-like structure. The lower backing plate 4 is provided with a self-locking column sleeving through hole 45, the self-locking column sleeving through hole 45 is circular, the periphery of the self-locking column sleeving through hole is provided with a self-locking column sleeving protrusion 42, and the self-locking column sleeving protrusion 42 is provided with a limiting groove 43. The lower boss 22 of the self-locking column 2 is a circle matched with the shape of the self-locking column sleeving through hole 45. The lower boss 22 is provided with an anti-rotation notch 21. The anti-rotation notch 21 is matched with the limit groove 43, so that the rotation of the self-locking column 2 is avoided. The two sides of the lower backing plate 4 are provided with limit flanges 41 for fixing the middle rubber pad 5.
Example 2
Referring to fig. 14-18, embodiment 2 of the present invention provides a low-height switch damping fastener 1, where the low-height switch damping fastener 1 sequentially includes, from top to bottom, an upper pad 3, a middle rubber pad 5, and a lower pad 4, the upper pad 3 and the lower pad 4 are connected to each other by a self-locking column 2, a bottom plate connecting sleeve 7 is disposed between the self-locking column 2 and the upper pad 3, and the lower pad 4 has a sheet-like structure. The lower backing plate 4 is provided with a self-locking column sleeving through hole 45, and the self-locking column sleeving through hole 45 is rectangular. The lower boss 22 of the self-locking column 2 is rectangular matched with the shape of the self-locking column sleeving through hole 45. Through the structure of this embodiment, the rotation of the self-locking column 2 can be avoided, and the arrangement of the anti-rotation notch 21 and the limit groove 43 can be omitted, thereby simplifying the structure and the processing cost. The two sides of the lower backing plate 4 are provided with limit flanges 41 for fixing the middle rubber pad 5.
It should be apparent that the above-described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, various changes, modifications, substitutions and improvements can be made by those skilled in the art without making any inventive effort, and are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a low high switch damping fastener, from top to bottom includes upper portion backing plate (3), middle rubber pad (5) and lower part backing plate (4), coupling backing plate (6) in proper order, its characterized in that: the upper base plate (3) and the lower base plate (4) are connected with each other through a self-locking column (2), and a bottom plate connecting sleeve (7) is arranged between the self-locking column (2) and the upper base plate (3); the lower base plate (4) is of a thin plate-shaped structure, a self-locking column sleeving through hole (45) which enables the self-locking column (2) to extend in is formed in the lower base plate (4), and the bottom surface of the self-locking column (2) is flush with the bottom surface of the coupling base plate (6).
2. The low height switch damping fastener of claim 1, wherein: the lower backing plate (4) is provided with a self-locking column sleeving through hole (45) matched with the lower boss (22) of the self-locking column (2) in shape; the self-locking column sleeving through hole (45) and the lower boss (22) are round, elliptic or polygonal.
3. The low height switch damping fastener of claim 2, wherein: the periphery of the self-locking column sleeving through hole (45) is provided with a self-locking column sleeving bulge (42).
4. A low height switch damping fastener as claimed in claim 3 wherein: a limit groove (43) is formed in the self-locking column sleeving protrusion (42); the lower boss (22) is provided with an anti-rotation notch (21) matched with the limit groove (43).
5. The low height switch damping fastener of claim 1, wherein: the lower base plate (4) is provided with a rubber pad positioning through hole (46) which is matched with the rubber pad positioning groove (501) of the middle rubber pad (5) in shape.
6. The low height switch damping fastener of claim 5, wherein: rubber pad positioning protrusions (44) are arranged on the periphery of the rubber pad positioning through holes (46).
7. The low height switch damping fastener as claimed in any one of claims 1 to 6 wherein: the edge of the lower backing plate (4) is provided with a limit flanging (41).
8. The low height switch damping fastener as claimed in any one of claims 1 to 6 wherein: the rubber pad through hole (503) of the middle rubber pad (5) is of an oval structure.
9. A method of making a low height switch damping fastener as claimed in any one of claims 1 to 6 wherein: the lower backing plate (4) is manufactured by stamping a metal plate.
10. The method of manufacturing a low height switch damping fastener of claim 9, wherein: the stamping is any one of integral stamping or local independent stamping; the whole stamping adopts a whole stamping die to stamp the whole structure of the lower base plate (4); the local independent stamping adopts a local stamping die to respectively stamp each independent structure of the lower base plate (4); the independent structure comprises one or more of a limit flanging (41), a self-locking column sleeving bulge (42), a limit groove (43), a rubber pad positioning bulge (44), a self-locking column sleeving through hole (45) and a rubber pad positioning through hole (46).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018104045245 | 2018-04-28 | ||
| CN201810404524 | 2018-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110409227A CN110409227A (en) | 2019-11-05 |
| CN110409227B true CN110409227B (en) | 2024-05-28 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580364.XU Active CN210529377U (en) | 2018-04-28 | 2019-04-25 | Low-height turnout vibration reduction fastener |
| CN201910333313.1A Active CN110409227B (en) | 2018-04-28 | 2019-04-25 | Low-height turnout vibration damping fastener and preparation method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580364.XU Active CN210529377U (en) | 2018-04-28 | 2019-04-25 | Low-height turnout vibration reduction fastener |
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| CN (2) | CN210529377U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210529377U (en) * | 2018-04-28 | 2020-05-15 | 洛阳双瑞橡塑科技有限公司 | Low-height turnout vibration reduction fastener |
| CN113718565A (en) * | 2021-08-30 | 2021-11-30 | 中铁隆昌铁路器材有限公司 | Semi-separation type double-layer nonlinear vibration attenuation fastener |
| CN114481710A (en) * | 2022-02-22 | 2022-05-13 | 河北中烁轨道科技有限公司 | Composite track plate convenient to disassemble and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943733A1 (en) * | 1998-03-20 | 1999-09-22 | Cogifer Compagnie Generale D'installations Ferroviaires | Elastic rail-fastening, particularly for stock-rails |
| KR20090006858U (en) * | 2008-01-02 | 2009-07-07 | 주식회사 엔트켐 | Vibration-damping rail fastener |
| JP2009228318A (en) * | 2008-03-24 | 2009-10-08 | Railway Technical Res Inst | Rail fastener |
| CN202247547U (en) * | 2011-08-05 | 2012-05-30 | 铁道第三勘察设计院集团有限公司 | Vibration-reducing fastener for rail transit |
| CN204959485U (en) * | 2015-08-26 | 2016-01-13 | 中国铁路总公司 | Rail fastener and rail fastener system |
| CN105648847A (en) * | 2015-12-30 | 2016-06-08 | 洛阳双瑞橡塑科技有限公司 | Manufacturing method for separation type double-layer turnout shock-absorbing fastener system |
| CN206219908U (en) * | 2016-08-30 | 2017-06-06 | 洛阳双瑞橡塑科技有限公司 | Elastic insulated pad under a kind of rail |
| CN207210851U (en) * | 2017-09-08 | 2018-04-10 | 洛阳科博思新材料科技有限公司 | A kind of backing plate and its fastener system |
| CN207244353U (en) * | 2017-04-20 | 2018-04-17 | 太仓中博铁路紧固件有限公司 | Lock-up type damping steel rail fastener |
| CN207244361U (en) * | 2017-07-25 | 2018-04-17 | 洛阳双瑞橡塑科技有限公司 | A kind of double-deck non-linear fastener system of low-mounting height |
| CN210529377U (en) * | 2018-04-28 | 2020-05-15 | 洛阳双瑞橡塑科技有限公司 | Low-height turnout vibration reduction fastener |
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2019
- 2019-04-25 CN CN201920580364.XU patent/CN210529377U/en active Active
- 2019-04-25 CN CN201910333313.1A patent/CN110409227B/en active Active
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| EP0943733A1 (en) * | 1998-03-20 | 1999-09-22 | Cogifer Compagnie Generale D'installations Ferroviaires | Elastic rail-fastening, particularly for stock-rails |
| KR20090006858U (en) * | 2008-01-02 | 2009-07-07 | 주식회사 엔트켐 | Vibration-damping rail fastener |
| JP2009228318A (en) * | 2008-03-24 | 2009-10-08 | Railway Technical Res Inst | Rail fastener |
| CN202247547U (en) * | 2011-08-05 | 2012-05-30 | 铁道第三勘察设计院集团有限公司 | Vibration-reducing fastener for rail transit |
| CN204959485U (en) * | 2015-08-26 | 2016-01-13 | 中国铁路总公司 | Rail fastener and rail fastener system |
| CN105648847A (en) * | 2015-12-30 | 2016-06-08 | 洛阳双瑞橡塑科技有限公司 | Manufacturing method for separation type double-layer turnout shock-absorbing fastener system |
| CN206219908U (en) * | 2016-08-30 | 2017-06-06 | 洛阳双瑞橡塑科技有限公司 | Elastic insulated pad under a kind of rail |
| CN207244353U (en) * | 2017-04-20 | 2018-04-17 | 太仓中博铁路紧固件有限公司 | Lock-up type damping steel rail fastener |
| CN207244361U (en) * | 2017-07-25 | 2018-04-17 | 洛阳双瑞橡塑科技有限公司 | A kind of double-deck non-linear fastener system of low-mounting height |
| CN207210851U (en) * | 2017-09-08 | 2018-04-10 | 洛阳科博思新材料科技有限公司 | A kind of backing plate and its fastener system |
| CN210529377U (en) * | 2018-04-28 | 2020-05-15 | 洛阳双瑞橡塑科技有限公司 | Low-height turnout vibration reduction fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210529377U (en) | 2020-05-15 |
| CN110409227A (en) | 2019-11-05 |
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