CN101381978B - Frog foot end elastic fixation system and fixation method - Google Patents
Frog foot end elastic fixation system and fixation method Download PDFInfo
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- CN101381978B CN101381978B CN2007101564105A CN200710156410A CN101381978B CN 101381978 B CN101381978 B CN 101381978B CN 2007101564105 A CN2007101564105 A CN 2007101564105A CN 200710156410 A CN200710156410 A CN 200710156410A CN 101381978 B CN101381978 B CN 101381978B
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Abstract
The invention relates to an elastic fixing device for a frog heel end part in a railroad, a fixing device and a fixing method thereof. The elastic fixing device comprises alternate iron, a high-strength bolt, a wing rail, a long point rail, a short point rail and a frog heel tongue rail, wherein the rail bodies of the wing rail, the long point rail, the short point rail and the frog heel tongue rail are provided with holes; and the alternate iron is arranged between the wing rail and the long point rail, between the long point rail and the short point rail and between the short point rail and the frog heel tongue rail respectively and is in precise connection by elastic pins and the high-strength bolts. The elastic fixing device for the frog heel end part has the advantages that through the elastic pin and the welded alternate iron which is manufactured, the elastic fixing device effectively homogenizes the vertical temperature force between regions, ensures the fixing of the position of each part of the frog heel end, limits the excessive flex of the long point rail and the short point rail, ensures the stability of the geometric shape and position of a turnout and ensures the high flatness and smoothness of the turnout.
Description
Technical field
The present invention relates to a kind of railroad frog heel end elastic fixation system, fastening devices and fixing means, belong to railroad frog heel end fastening devices and fixing means and make the field.
Background technology
1, for resisting the disturbance of interval TEMPERATURE FORCE to the track switch physical dimension, guarantee the geometry morpheme of track switch, solid and reliable track switch heel end of frog fixed system is essential.The heel end of frog of existing track switch fixedly be by high-strength bolt and interval iron will long heart rail, short heart rail, fork be connected with wing rail with tongue, sees accompanying drawing 6.Its weak point: this kind structure is because there is the deviation on making in each component, and the high-strength bolt discontinuity causes that the diseases such as local distortion of the creeping of heart rail, track switch appear in the existing line railway frog because of the effect of thermal stresses.
2,, therefore adopt long wing rail mostly, to transmit the longitudinal force of gapless track because high-speed switch is used for trans-section seamless railway.The effect of heel end of frog structure is the TEMPERATURE FORCE that the opposing circuit passes over, and it is passed to stock rail by lead curve.China popularizes trans-section seamless railway in an all-round way from acclerating road switch, and the rail wing heel end adopts 3～4 block gap iron to be connected with heart rail, and bolt adopts high-strength bolt.According to use experience for many years, wing rail heel end structure is insecure, will cause the heart rail amount of creeping excessive, makes track switch and electric affair equipment produce jam easily, influences the normal use of track switch.At present, the methods that wing rail, heart rail and interval iron are gluedd joint that adopt are strengthened the heel end of frog structure more.Its weak point is: this kind structure is because there is the deviation on making in each component, and the high-strength bolt discontinuity causes that the diseases such as local distortion of the creeping of heart rail, track switch appear in the existing line railway frog because of the effect of thermal stresses.
Germany adopts switch base plate in the heel end of frog bottom, adopts the interval iron of growing up between heart rail and heart rail, wing rail and heart rail, connects with switch base plate by bolt, also is used cross bolts simultaneously and connects; Japan adopts potassium steel block cast frame type wing rail, the fixing fixing mode of group's rail that adopts of heel end of frog, and heel end stability is all relatively good, but the manufacturing process relative complex.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of fixed system and fixing means of heel end of frog, can bear of the influence of the TEMPERATURE FORCE of track section, keep the geometry morpheme of railway frog to track structure.
Design scheme: in order to realize above-mentioned purpose of design.The present invention is in structure and method design, adopt the preparation interval iron, high-strength bolt, resilient key will long heart rail, short heart rail, fork carries out precision with tongue with wing rail and is connected, it is major technique feature of the present invention, and the key that realizes major technique feature of the present invention is: 1, resilient key vertically will have a breach, to guarantee when " interference " cooperates assembling, resilient key has certain " compression " amount, can close installation, and satisfy following condition: the one, the resilient key material adopts manganese steel or silico-manganese steel, make it have higher anti-shear ability, shear strength is not less than 698Mpa; The 2nd, resilient key outside diameter d 1 is a bit larger tham the installation aperture on the rail, when mounted, resilient key is squeezed in the installing hole of rail by special tool, guarantees the compactness of installing.The purpose of doing like this is: during TEMPERATURE FORCE that length heart rail is subjected to transmitting between switch area, pass through high-strength bolt, TEMPERATURE FORCE at first is delivered on the resilient key in the length heart rail hole, secondly be delivered to equably on the welding clamping plate by resilient key, be delivered on the resilient key in the wing rail hole by the welding clamping plate again, be delivered on the wing rail equably by the resilient key in the wing rail hole at last.2, preparation interval iron, welding clamping plate in order to obtain the concentricity of clamping plate and rail installing hole, are guaranteed resilient key closely cooperating when mounted when drilling, require the rail of every block welding clamping plate and homonymy to hole simultaneously, the aperture deviation is 0～+ 0.25mm; Welding clamping plate in both sides are by behind resilient key, high-strength bolt and the corresponding rail installation in position, prepare weld interval iron by preparation welding gusset, the technology of joining weldering.The precision-fit of weld interval iron and high-strength bolt is to guarantee the stressed even of each high-strength bolt.
Technical scheme 1: frog foot end elastic fixation system, it comprises that interval iron, high-strength bolt, wing rail, long heart rail, short heart rail and fork are with tongue, wing rail, long heart rail, short heart rail and fork have the hole with the rail body of tongue, between wing rail and long heart rail, between long heart rail and short heart rail, weak point heart rail is equipped with interval iron respectively between tongue and adopts spring catch respectively and the high-strength bolt precision is connected with pitching to follow.
Technical scheme 2: the preparation method of heel end of frog elastic fixing device, it comprises spring catch and welding clamping plate, and milling round steel pipe---〉brachymemma---〉machine-shaping---〉the processing longitudinal opening groove---〉that is made as of described spring catch quenches---〉tempering; The processing welding clamping plate---〉that are made as of described weld interval iron are joined equipped heel end of frog the component---〉preparation of brill installing hole---〉welding gusset---〉spot welding gusset, welding clamping plate with corresponding rail---〉welding.
Technical scheme 3: heel end of frog flexible fastening method, the rail of every block welding clamping plate and homonymy is holed simultaneously, the aperture deviation is 0～+ 0.25mm, after both sides welding clamping plate pass through resilient key, high-strength bolt and corresponding rail installation in position, by preparation welding gusset, preparation weld interval iron, weld interval iron.
The present invention compares with background technology, because track switch longitudinal temperature power is the main cause of track switch geometric form phase perturbation, and heel end of frog fixed system of the present invention is by resilient key and preparation weld interval iron, not only effectively homogenising from the longitudinal temperature power in interval, guarantee that each component locations of heel end of frog fixes, limit the excessive flexible of length heart rail, and guaranteed the stable of how much morphemes of track switch, guaranteed the high ride of track switch.
Description of drawings
Fig. 1 is a frog foot end elastic fixation system structure schematic top plan view.
Fig. 2 is a frog foot end elastic fixation system sectional structure schematic diagram.
Fig. 3 is the main TV structure schematic diagram of spring catch structure.
Fig. 4 is the side-looking structural representation of Fig. 3.
Fig. 5 is the structural representation of preparation interval iron.
Fig. 6 is the structural representation of background technology.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1～5.Frog foot end elastic fixation system, it comprises that interval iron 2, high-strength bolt 3, wing rail 4, long heart rail 5, short heart rail 6 and fork are with tongue 7, wing rail 4, long heart rail 5, short heart rail 6 and fork have the hole with the rail body of tongue 7, and wing rail 4 respectively is equipped with interval iron 2 with fork with 7 of tongues with 6 on short heart rail, short heart rail 6 and adopts resilient key 1 and 3 accurate connections of high-strength bolt respectively with 5 on long heart rail, long heart rail 5.Described interval iron 2 is made of welding clamping plate 8 and welding gusset 9, and welding clamping plate 8 are dislocatedly distributed, and welding gusset 9 is welded between the upper and lower plate of welding clamping plate 8, has installing hole 10 on the welding clamping plate 8.Described spring catch 1 vertically has a breach 11, and described spring catch 1 adopts manganese steel or silico-manganese steel.
Embodiment 2: with reference to accompanying drawing 3～5.The preparation method of heel end of frog elastic fixing device, it comprises spring catch and welding clamping plate, milling round steel pipe---〉brachymemma---〉machine-shaping---〉the processing longitudinal opening groove---〉that is made as of described spring catch quenches---tempering; The manufacturing of resilient key is mainly passed through: milling round steel pipe blank, clip to design size, machine moulding, open technological processes such as cannelure, heat treatment and realize that existing technical maturity is realized easily.The processing welding clamping plate---〉that are made as of described weld interval iron are joined equipped heel end of frog the component---〉preparation of brill installing hole---〉welding gusset---〉spot welding gusset, welding clamping plate with corresponding rail---〉welding.Weld interval iron is after the machine of welding clamping plate is finished, and joins the brill installing hole on corresponding rail, and all the other component of heel end of frog are installed, and prepares gusset, welding gusset then, thereby forms the heel end of frog fixed frame, and existing technical maturity is realized easily.
Embodiment 3: on the basis of embodiment 1 and 2, heel end of frog flexible fastening method, the rail of every block welding clamping plate and homonymy is holed simultaneously, the aperture deviation is 0～+ 0.25mm, after both sides welding clamping plate pass through spring catch, high-strength bolt and corresponding rail installation in position, by preparation welding gusset, preparation weld interval iron, weld interval iron.
What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these explanations, just to simple declaration of the present invention, rather than limitation of the present invention; any innovation and creation that do not exceed in the connotation of the present invention all fall into protection scope of the present invention.
Claims (6)
1. frog foot end elastic fixation system, it comprises that interval iron, high-strength bolt, wing rail, long heart rail, short heart rail and fork are with tongue, it is characterized in that: wing rail, long heart rail, short heart rail and fork have the hole with the rail body of tongue, between wing rail and long heart rail, between long heart rail and short heart rail, short heart rail and fork be with being equipped with interval iron respectively between tongue and adopting resilient key respectively and the high-strength bolt precision is connected, and has installing hole on the welding clamping plate of interval iron.
2. frog foot end elastic fixation system according to claim 1 is characterized in that: described interval iron is made of welding clamping plate and welding gusset, and the welding clamping plate are dislocatedly distributed, and the welding gusset is welded between the upper and lower plate of welding clamping plate.
3. frog foot end elastic fixation system according to claim 1 is characterized in that: described resilient key vertically has a breach.
4. frog foot end elastic fixation system according to claim 1 is characterized in that: described resilient key adopts manganese steel or silico-manganese steel.
5. the preparation method of a heel end of frog elastic fixing device, it comprises resilient key and weld interval iron, it is characterized in that:
Milling round steel pipe---〉brachymemma---〉machine-shaping---〉the processing longitudinal opening groove---〉that is made as of described resilient key quenches---〉tempering;
The processing welding clamping plate---〉that are made as of described weld interval iron are joined equipped heel end of frog the component---〉preparation of brill installing hole---〉welding gusset---〉spot welding gusset, welding clamping plate with corresponding rail---〉welding.
6. heel end of frog flexible fastening method, it is characterized in that: the rail of every block welding clamping plate and homonymy is holed simultaneously, the aperture deviation is 0～+ 0.25mm, after both sides welding clamping plate pass through resilient key, high-strength bolt and corresponding rail installation in position, by preparation welding gusset, preparation weld interval iron, weld interval iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101564105A CN101381978B (en) | 2007-10-25 | 2007-10-25 | Frog foot end elastic fixation system and fixation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101564105A CN101381978B (en) | 2007-10-25 | 2007-10-25 | Frog foot end elastic fixation system and fixation method |
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| Publication Number | Publication Date |
|---|---|
| CN101381978A CN101381978A (en) | 2009-03-11 |
| CN101381978B true CN101381978B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101564105A Active CN101381978B (en) | 2007-10-25 | 2007-10-25 | Frog foot end elastic fixation system and fixation method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625107A (en) * | 2016-03-15 | 2016-06-01 | 芜湖中铁科吉富轨道有限公司 | Track turnout structure |
| CN105803864A (en) * | 2016-03-15 | 2016-07-27 | 芜湖中铁科吉富轨道有限公司 | Track turnout spacer block |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284804Y (en) * | 1997-01-16 | 1998-06-24 | 兰州铁路分局河口南工务段 | Adjustable frog center spacer for railway switch |
| CN2321805Y (en) * | 1998-01-19 | 1999-06-02 | 李丰实 | Frame changing type railway frog |
| CN2632129Y (en) * | 2003-07-09 | 2004-08-11 | 单国平 | Forge welding frog in railway |
| CN201099820Y (en) * | 2007-10-25 | 2008-08-13 | 中铁宝桥股份有限公司 | Cross frog heel flexible fastening system |
-
2007
- 2007-10-25 CN CN2007101564105A patent/CN101381978B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284804Y (en) * | 1997-01-16 | 1998-06-24 | 兰州铁路分局河口南工务段 | Adjustable frog center spacer for railway switch |
| CN2321805Y (en) * | 1998-01-19 | 1999-06-02 | 李丰实 | Frame changing type railway frog |
| CN2632129Y (en) * | 2003-07-09 | 2004-08-11 | 单国平 | Forge welding frog in railway |
| CN201099820Y (en) * | 2007-10-25 | 2008-08-13 | 中铁宝桥股份有限公司 | Cross frog heel flexible fastening system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-247502A 1995.09.26 |
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| Publication number | Publication date |
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| CN101381978A (en) | 2009-03-11 |
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Owner name: CHINA RAILWAY BAOJI BRIDGE GROUP CO., LTD. Free format text: FORMER NAME: BAOQIAO CO., LTD., MINISTRY OF RAILWAYS |
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Address after: 721006 Limited by Share Ltd science and Technology Management Department of China Railway Bao bridge, No. 80 Qing Jiang Road, Baoji, Shaanxi Patentee after: China Railway Baoji Bridge Group Co., Ltd. Address before: 721006 Limited by Share Ltd science and Technology Management Department of China Railway Bao bridge, No. 80 Qing Jiang Road, Baoji, Shaanxi Patentee before: Baoqiao Co., Ltd., Ministry of Railways |