CN110983875A - Elastic non-separating fastener system for medium-low speed magnetic suspension track - Google Patents
Elastic non-separating fastener system for medium-low speed magnetic suspension track Download PDFInfo
- Publication number
- CN110983875A CN110983875A CN201911125637.2A CN201911125637A CN110983875A CN 110983875 A CN110983875 A CN 110983875A CN 201911125637 A CN201911125637 A CN 201911125637A CN 110983875 A CN110983875 A CN 110983875A
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- Prior art keywords
- rail
- fastener system
- nut
- medium
- shaped steel
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- 239000000725 suspension Substances 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 241001669679 Eleotris Species 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000013016 damping Methods 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 238000002788 crimping Methods 0.000 claims abstract 2
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005339 levitation Methods 0.000 description 23
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 235000015220 hamburgers Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
中低速磁浮轨道弹性不分开式扣件系统，以有效实现对轨排的三维调整，提高扣件的整体组装精度，且有利于减少中低速磁浮轨道的建设成本。该扣件系统包括对调高螺母、减振或调距组件和上部扣压螺母组件形成串联的预埋螺栓，其中调高螺母位于铁垫板底面下，减振或调距组件位于H型钢枕轨底顶面与上部扣压螺母组件底面之间。H型钢枕轨腰两侧的轨底上对应开设轨底大圆孔，预埋螺栓的下部埋设在承轨台内且与之形成锚固连接，上部则穿过轨底大圆孔实现H型钢枕的纵向调整和横向调整，通过改变调高垫板的厚度实现H型钢枕的竖向调整。
The elastic non-separable fastener system for medium and low-speed maglev tracks can effectively realize three-dimensional adjustment of the rail row, improve the overall assembly accuracy of fasteners, and help reduce the construction cost of medium and low-speed maglev tracks. The fastener system includes a series of pre-embedded bolts formed on the height-adjusting nut, the vibration-damping or distance-adjusting component and the upper crimping nut component, wherein the height-adjusting nut is located under the bottom surface of the iron backing plate, and the vibration-absorbing or distance-adjusting component is located at the bottom of the H-shaped steel sleeper rail Between the top surface and the bottom surface of the upper crimp nut assembly. The rail bottoms on both sides of the rail waist of the H-shaped steel sleeper are correspondingly provided with large round holes in the rail bottom. Adjustment and lateral adjustment, realize the vertical adjustment of H-shaped steel sleeper by changing the thickness of the height-adjusting pad.
Description
Technical Field
The invention provides an elastic non-separating fastener for a medium-low speed magnetic levitation track, relates to the field of magnetic levitation tracks, and is particularly used for connecting a medium-low speed magnetic levitation track panel and a track supporting structure.
Background
The medium-low speed magnetic suspension fastener is an important component of a track structure, fixes a track panel on a track bearing platform, and transmits the load of a train to a lower foundation through the track panel and the fastener. Meanwhile, the fastener system also has the functions of longitudinal, transverse and vertical three-dimensional adjustment so as to keep good geometric shape and position of the track and ensure the stability and reliability of the magnetic suspension track. The fastener technology is a key technology of a medium-low speed magnetic levitation track structure.
At present, medium-low speed magnetic suspension fasteners at home and abroad can be divided into two types according to the difference of structural forms and characteristics: elastic non-separable fasteners and elastic separable fasteners. The non-split type is that the fastener of the buckling and pressing piece is directly connected into a concrete rail bearing platform or a concrete rail beam, only one layer of sleeper lower cushion plate is arranged between the track panel and the rail bearing platform or the rail beam, and a through-length connecting base plate is not arranged; the split fastener has a base plate, the track panel is fastened on the base plate by a fastening member, and the base plate is fastened on the track bearing platform by bolts and the like.
The invention patent application specification of the publication No. CN 109024112A discloses that a connecting fastener of a medium-low speed magnetic levitation track panel is of an elastic non-separating structure, an iron base plate, an adjusting base plate, an elastic base plate and an H-shaped steel sleeper are connected in series through an anchor bolt, the elastic base plate is arranged below the H-shaped steel sleeper, and a damping gasket and a spring washer are synchronously arranged above the H-shaped steel sleeper, so that the magnetic levitation track panel is ensured to have downward and upward damping performance, and appropriate elasticity is provided. But in order to ensure the stability of the vibration damping gasket, two cover plates are added above the H-shaped steel pillow to form a three-layer hamburger structure; meanwhile, in order to increase the anti-pulling force of the anchor bolt, the lower part of the bolt is flattened by a grinding tool, and the increase of the anti-pulling force is limited.
The invention patent application specification of the publication No. CN 102852056B discloses an elastic split fastener for a medium-low speed magnetic levitation track, wherein an iron backing plate is fixed with a lower foundation through a group of anchoring bolts, and an H-shaped sleeper is fixed with the iron backing plate through another group of fixing bolts, so that the fastening pressure and the uplift resistance of the fastener are ensured. Vertical adjustment is carried out by replacing height-adjusting base plates with different thicknesses, the H-shaped steel sleeper is longitudinally adjusted by opening the elliptical hole, and the base plates are longitudinally and transversely adjusted by slotting. Meanwhile, the upper surface and the lower surface of the connecting steel plate of the fixing bolt pair are provided with elastic base plates, so that bidirectional vibration reduction of the track structure is realized. This fastener is elasticity split type fastener, can realize the three-dimensional adjustment to the section of track, but the fastener structure is complicated, and spare part is more, and the cost is high, and it is inconvenient to maintain.
Disclosure of Invention
The invention aims to solve the technical problem of providing an elastic non-separating fastener system for a medium-low speed magnetic levitation track, so as to effectively realize three-dimensional adjustment of a track panel, improve the integral assembly precision of a fastener and be beneficial to reducing the construction cost of the medium-low speed magnetic levitation track.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to an elastic non-separating fastener system for a medium-low speed magnetic levitation track, which is characterized in that an H-shaped steel sleeper is installed and fixed on a rail bearing platform by the fastener system, an elastic base plate and a heightening base plate are arranged under the bottom surface of the H-shaped steel sleeper, and an iron base plate is arranged between the bottom surface of the heightening base plate and the top surface of the rail bearing platform, wherein the elastic non-separating fastener system comprises: the fastener system comprises an embedded bolt which is formed by connecting a height adjusting nut, a vibration or distance adjusting component and an upper buckling nut component in series, wherein the height adjusting nut is positioned below the bottom surface of an iron base plate, and the vibration or distance adjusting component is positioned between the top surface of the bottom of the H-shaped steel sleeper and the bottom surface of the upper buckling nut component; the H-shaped steel sleeper rail web is characterized in that rail bottoms on two sides of the rail waist of the H-shaped steel sleeper are correspondingly provided with large round holes at rail bottoms, the lower parts of the embedded bolts are embedded in the rail bearing platform and are connected with the rail bearing platform in an anchoring mode, the upper parts of the embedded bolts penetrate through the large round holes at the rail bottoms to achieve longitudinal adjustment and transverse adjustment of the H-shaped steel sleeper, and the vertical adjustment of the H-shaped steel sleeper is achieved by changing the thickness of the height-.
The beneficial effects of the invention are mainly reflected in the following aspects:
1. the large round holes are formed in the rail bottoms on the two sides of the rail waist of the H-shaped steel sleeper, so that the longitudinal adjustment and the transverse adjustment of the rail panel are realized, and the vertical adjustment of the H-shaped steel sleeper is realized by changing the thickness of the height-adjusting backing plate, so that the three-dimensional adjustment of the rail panel is realized, and the integral assembly precision of the fastener is improved;
2. a vibration damping or distance adjusting assembly is arranged between the top surface of the bottom of the H-shaped steel sleeper rail and the bottom surface of the upper buckling nut assembly, so that vertical vibration damping is realized, and the following performance of the fastener and the track panel is kept;
3. the embedded bolts are inverted T-shaped anchor bolts, spiral steel bars connected with longitudinal and transverse steel bars in the rail bearing platform are arranged on the lower portions of the inverted T-shaped anchor bolts, or the flat and bent anchor bolts are adopted on the lower portions of the inverted T-shaped anchor bolts, so that the pulling resistance of the embedded bolts is further enhanced, the height of the rail bearing platform can be greatly reduced, the consumption of concrete and the section of a line can be further reduced, and the construction cost of the medium-low speed magnetic levitation track is reduced.
Description of the drawings:
the specification includes the following nine figures:
FIG. 1 is a schematic structural view of an embodiment 1 of the low-speed magnetic levitation track elastic non-separating fastener system of the present invention;
FIG. 2 is a schematic perspective view of a damping pad in the elastic non-separating fastener system of the low-speed magnetic levitation track according to the present invention;
fig. 3 is a perspective view of the T-shaped integral distance adjusting block in the elastic non-separating fastener system of the low-speed magnetic levitation track of the present invention.
FIG. 4 is a perspective view of the T-shaped integral distance adjusting block in the low-speed magnetic levitation track elastic non-separating fastener system of the present invention;
fig. 5 is a three-dimensional schematic view of an inverted T-shaped anchor bolt and a spiral steel bar in the elastic non-separable fastener for a low-speed magnetic levitation track according to the present invention.
FIG. 6 is a schematic structural view of an embodiment 2 of the low speed magnetic levitation track elastic non-separating fastener system of the present invention;
fig. 7 is a perspective view of a cover plate in the elastic non-separating fastener system of the low-speed magnetic levitation track of the present invention.
FIG. 8 is a perspective view of a wave-shaped spacer in the elastic non-separating fastener system of the low-speed magnetic levitation track of the present invention.
Fig. 9 is a perspective view of the anchor bolt in the elastic non-separating fastener system of the low-speed magnetic levitation track of the present invention.
The component names and corresponding labels are shown in the figure: the track supporting platform comprises a track supporting platform 1, an iron base plate 2, a heightening base plate 3, an elastic base plate 4, a vibration damping gasket 5, a T-shaped integral distance adjusting block 6, a hexagon nut 7, a locknut 8, a cap nut 9, an H-shaped steel sleeper 10, a large round hole 10a at the bottom of the track, an inverted T-shaped anchor bolt 11, an anchor bolt 11a, a heightening nut 12, a spiral steel bar 13, a cover plate 14 and a wave-shaped gasket 15.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1 and 6, in the elastic non-separating fastener system for the medium-low speed magnetic levitation track, an H-shaped steel sleeper 10 is installed and fixed on a track bearing platform 1 by the fastener system, an elastic base plate 4 and a heightening base plate 3 are arranged under the bottom surface of the rail bottom of the H-shaped steel sleeper 10, and an iron base plate 2 is arranged between the bottom surface of the heightening base plate 3 and the top surface of the track bearing platform 1. The fastener system comprises embedded bolts which are used for connecting the heightening nut 12, the vibration or distance adjusting component and the upper buckling nut component in series, wherein the heightening nut 12 is positioned below the bottom surface of the iron base plate 2, and the vibration or distance adjusting component is positioned between the top surface of the rail bottom of the H-shaped steel sleeper 10 and the bottom surface of the upper buckling nut component. The big round hole 10a in rail foot is seted up to correspondence on the rail foot of H shaped steel sleeper 10 rail web both sides, the lower part of buried bolt in the support rail platform 1 underground and form the anchor with it and be connected, upper portion then passes the vertical adjustment and the horizontal adjustment of the big round hole 10a in rail foot realization H shaped steel sleeper 10, realize H shaped steel sleeper 10's vertical adjustment through the thickness that changes heightening backing plate 3, thereby realize the three-dimensional adjustment of section of track, realize vertical damping and keep the followability of fastener and section of track through setting up damping or roll adjustment subassembly, improve the whole equipment precision of fastener.
Referring to embodiment 1 shown in fig. 1 to 5, the embedded bolt is an inverted T-shaped anchor bolt 11, the lower portion of the embedded bolt is fixedly connected with a spiral steel bar 13, and the spiral steel bar 13 is connected with a longitudinal steel bar and a transverse steel bar arranged in a rail bearing platform (1), so that the uplift resistance of the embedded bolt is further enhanced, the height of the rail bearing platform can be greatly reduced, the consumption of concrete and the section of a line can be further reduced, and the construction cost of a medium-low speed magnetic levitation track is reduced. The vibration damping or distance adjusting assembly is composed of a vibration damping gasket 5 and a T-shaped integral distance adjusting block 6, the T-shaped integral distance adjusting block 6 is provided with a long round hole for the upper part of the embedded bolt to penetrate through, and a sleeve structure at the lower part of the T-shaped integral distance adjusting block is located in a big round hole 10a at the bottom of the rail. The damping gasket 5 is sleeved on the sleeve structure and is positioned between a convex shoulder structure at the top of the T-shaped integral distance adjusting block 6 and the top surface of the rail bottom of the H-shaped steel sleeper 10. The damping pad 5 is made of rubber or polyester polymer material.
Referring to embodiment 2 shown in fig. 6 to 9, the embedded bolts are anchor bolts 11a, and in order to further increase the pullout resistance and reduce the height of the rail bearing platform, the lower portions of the anchor bolts 11a are flat and bent. The vibration reduction or distance adjustment assembly is composed of a cover plate 14 and a corrugated gasket 15, the cover plate 14 is arranged on the top surface of the rail bottom of the H-shaped steel sleeper 10 in a sleeved mode, the large circular hole 10a of the rail bottom is covered, and the corrugated gasket 15 is located on the cover plate 14. The cover plate 14 and the corrugated gasket 15 are made of a metal material.
The foregoing is illustrative of the principles of the low speed magnetic levitation track spring non-separating fastener system of the present invention and is not intended to limit the invention to the exact construction and operation shown and described, and accordingly, all modifications and equivalents may be resorted to, falling within the scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125637.2A CN110983875A (en) | 2019-11-17 | 2019-11-17 | Elastic non-separating fastener system for medium-low speed magnetic suspension track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125637.2A CN110983875A (en) | 2019-11-17 | 2019-11-17 | Elastic non-separating fastener system for medium-low speed magnetic suspension track |
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| Publication Number | Publication Date |
|---|---|
| CN110983875A true CN110983875A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911125637.2A Pending CN110983875A (en) | 2019-11-17 | 2019-11-17 | Elastic non-separating fastener system for medium-low speed magnetic suspension track |
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| Country | Link |
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| CN (1) | CN110983875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796178A (en) * | 2020-12-29 | 2021-05-14 | 中铁第四勘察设计院集团有限公司 | A superconducting high-speed magnetic levitation track beam structure |
| CN115418895A (en) * | 2022-09-16 | 2022-12-02 | 湖南轨道技术应用研究中心有限公司 | Medium-low speed maglev train track |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1048112A (en) * | 1996-08-02 | 1998-02-20 | Fujita Corp | Test of pull-out strength of anchor bolt for machinery |
| CN2635733Y (en) * | 2003-08-29 | 2004-08-25 | 同济大学科学技术开发公司 | Combined anchor set |
| CN201485755U (en) * | 2009-08-06 | 2010-05-26 | 方建平 | Concrete sleeper of pre-embedded combined casing |
| JP2010255363A (en) * | 2009-04-28 | 2010-11-11 | Mitsubishi Heavy Ind Ltd | Sleeper fastening structure of magnetic levitation system |
| CN204530342U (en) * | 2014-12-15 | 2015-08-05 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev elasticity nonseparated rail fastening |
| CN204738190U (en) * | 2014-12-15 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Low three -dimensional adjustable fastener of moderate -low speed magnetic levitation of maintaining |
| CN206109887U (en) * | 2016-10-15 | 2017-04-19 | 陕西长美科技有限责任公司 | Tram fastener |
| CN109024112A (en) * | 2018-09-29 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev section of track connection fastener |
| CN208647898U (en) * | 2018-06-28 | 2019-03-26 | 中铁第五勘察设计院集团有限公司 | A kind of spiral bar, fastener and its wheel track transporting equipment |
| CN209039888U (en) * | 2018-09-29 | 2019-06-28 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev section of track connection fastener |
| JP2019163688A (en) * | 2019-05-24 | 2019-09-26 | 渡辺パイプ株式会社 | Pile screw pile |
| CN209493770U (en) * | 2018-11-30 | 2019-10-15 | 上海工程技术大学 | A double-layer vibration-absorbing fastener system with a pre-embedded base |
| CN211872434U (en) * | 2019-11-17 | 2020-11-06 | 中铁二院工程集团有限责任公司 | Medium-low speed magnetic levitation non-separating track panel fastener |
-
2019
- 2019-11-17 CN CN201911125637.2A patent/CN110983875A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1048112A (en) * | 1996-08-02 | 1998-02-20 | Fujita Corp | Test of pull-out strength of anchor bolt for machinery |
| CN2635733Y (en) * | 2003-08-29 | 2004-08-25 | 同济大学科学技术开发公司 | Combined anchor set |
| JP2010255363A (en) * | 2009-04-28 | 2010-11-11 | Mitsubishi Heavy Ind Ltd | Sleeper fastening structure of magnetic levitation system |
| CN201485755U (en) * | 2009-08-06 | 2010-05-26 | 方建平 | Concrete sleeper of pre-embedded combined casing |
| CN204530342U (en) * | 2014-12-15 | 2015-08-05 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev elasticity nonseparated rail fastening |
| CN204738190U (en) * | 2014-12-15 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Low three -dimensional adjustable fastener of moderate -low speed magnetic levitation of maintaining |
| CN206109887U (en) * | 2016-10-15 | 2017-04-19 | 陕西长美科技有限责任公司 | Tram fastener |
| CN208647898U (en) * | 2018-06-28 | 2019-03-26 | 中铁第五勘察设计院集团有限公司 | A kind of spiral bar, fastener and its wheel track transporting equipment |
| CN109024112A (en) * | 2018-09-29 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev section of track connection fastener |
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| CN209493770U (en) * | 2018-11-30 | 2019-10-15 | 上海工程技术大学 | A double-layer vibration-absorbing fastener system with a pre-embedded base |
| JP2019163688A (en) * | 2019-05-24 | 2019-09-26 | 渡辺パイプ株式会社 | Pile screw pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796178A (en) * | 2020-12-29 | 2021-05-14 | 中铁第四勘察设计院集团有限公司 | A superconducting high-speed magnetic levitation track beam structure |
| CN115418895A (en) * | 2022-09-16 | 2022-12-02 | 湖南轨道技术应用研究中心有限公司 | Medium-low speed maglev train track |
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Application publication date: 20200410 |