CN111287031A - Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch - Google Patents
Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch Download PDFInfo
- Publication number
- CN111287031A CN111287031A CN202010218111.5A CN202010218111A CN111287031A CN 111287031 A CN111287031 A CN 111287031A CN 202010218111 A CN202010218111 A CN 202010218111A CN 111287031 A CN111287031 A CN 111287031A
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- Prior art keywords
- rail
- switch
- section
- deformation
- point
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000005489 elastic deformation Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 6
- 241000283707 Capra Species 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 210000001624 hip Anatomy 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- 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
- E01B7/02—Tongues; Associated constructions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B21/00—Track superstructure adapted for tramways in paved streets
- E01B21/04—Special fastenings, joint constructions, or tie-rods
-
- 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
- E01B7/02—Tongues; Associated constructions
- E01B7/06—Constructions with flexible tongues or flexible fishplates
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2201/00—Fastening or restraining methods
- E01B2201/04—Fastening or restraining methods by bolting, nailing or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses an alloy steel elastically bendable point rail for a tramcar turnout and a limiting mechanism, wherein the point rail comprises a traction section connected with a point switch, a deformation section capable of realizing elastic deformation and a heel end transiting to a stock rail, a mounting table is arranged on one side of the tail section close to the adjacent stock rail, a mounting hole for fixing the tail section of the point rail is arranged on the mounting table, a limiting groove capable of limiting the point rail to move along the length direction is arranged at the bottom of the tail section, the deformation section is positioned between the tail section and the traction section, and deformation grooves are arranged at the rail waists of two side walls of the deformation section along the length direction of the point rail. The switch rail with the structure has the advantages that elastic deformation can be realized due to the switch rail, so that the switch rail with the large pointer and the movable joint structure is not used, transition between the switch rail and the connecting guide rail is smoother, the tramcar is more stable in operation, the wall thickness of the part is reduced by processing the rail waist groove through the bendable section, and labor is saved when the switch machine drives the switch rail to deform.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a switch rail structure of a tramcar turnout and a limiting mechanism for fixing the switch rail.
Background
The switch is used as the main component of the turnout, and the switch point is used as the main part of the switch, and the quality of the material and the heel end structure thereof directly determine the service life of the whole set of turnout. General switch rail all adopts 50AT1 or 60AT2 short rail as the switch rail type of channel steel track switch in current tram switch product, because of receiving the influence of its rail profile, the switch rail is comparatively troublesome when machining and bending on the top, and the service life is far below the alloy steel switch rail that alloy steel sheet processing made and forms, its heel end structural design is also comparatively complicated, general heel end structure is loose joint or big table needle, the switch can produce more disease AT later stage operation process, stability is relatively poor, this patent adopts the fine solution of short type switch rail heel end structure complicacy of the structure of elasticity bendable and the problem of service life.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the switch rail for the tramcar turnout, which can realize elastic bending deformation and more smooth train operation, and the limiting mechanism matched with the switch rail and used for avoiding the switch rail from moving in the train operation process, and the invention adopts the technical scheme that:
the utility model provides a tram is alloy steel elasticity can sharp rail for switch, this sharp rail can realize elastic deformation's deformation section and transition to the heel end of stock rail including the section of pulling of connecting the goat tail section lean on adjacent stock rail one side to be equipped with the mount table on be equipped with the mounting hole of fixed sharp rail tail section bottom be equipped with the spacing groove that can restrict the sharp rail along length direction drunkenness, the section of warping be located between tail section and the section of pulling the both sides wall web of a track position of deformation section be equipped with the deformation groove along sharp rail length direction.
Furthermore, the switch rail is formed by milling NM400 steel, and the deformation groove is positioned behind the 56mm section of the switch rail.
Furthermore, the limiting groove penetrates through the tail section and the mounting table along the width direction of the switch rail, and the traction section is provided with a traction hole connected with the switch.
A limit mechanism for the elastically bendable alloy steel switch rail of tramcar switch is composed of a drawing unit for connecting the switch, a deforming unit for elastic deformation, a tail unit for transition to basic rail, a mounting table with a hole for fixing the tail unit of switch rail, a limiting slot at the bottom of tail unit for limiting the switch rail to move along length direction, a vertical switch rail plate between tail unit and drawing unit, a vertical wall at one end of said large table plate, and a fixing table for fixing the switch rail, the fixing platform is provided with a limiting platform which can be embedded into a limiting groove, the frog heel vertical plate is provided with a connecting hole which is used for connecting the frog heel vertical plate and the rail web of the switch rail adjacent to the switch rail installed by the limiting mechanism, a group of rib plates are arranged between the frog heel vertical plate and the limiting platform at intervals, and the fixing platform is provided with a fixing hole matched with the mounting hole.
Furthermore, the switch rail is formed by milling NM400 steel, the deformation groove is positioned behind the 56mm section of the switch rail, the limiting groove penetrates through the tail section and the mounting table along the width direction of the switch rail, and the traction section is provided with a traction hole connected with the switch.
Furthermore, a spacer iron for filling the rail web space is arranged between the switch heel vertical plate and the rail web of the stock rail, and a stop block is arranged between the vertical wall and the switch rail.
Furthermore, an adjusting sheet is arranged between the switch rail and the limiting mechanism, and the adjusting sheet is Z-shaped.
Furthermore, one side of the bottom of the large bedplate, which is close to the stock rail adjacent to the switch rail installed on the limiting mechanism, is provided with a yielding groove for the rail bottom of the stock rail to be inserted.
Adopt the switch rail of above-mentioned structure, because the switch rail can realize elastic deformation, thereby do not use the switch rail of big table needle and loose joint structure again, make the transition more smooth-going between switch rail and the connecting guide rail, tram is more steady in service, can reduce this position wall thickness through the section processing rail waist groove of can bending to elasticity, it is more laborsaving when making this switch rail of goat drive warp, set up the mount table at this switch rail heel end and realize the fixed mounting to the switch rail, and be equipped with spacing groove cooperation stop gear bottom the switch rail heel end and can prevent this switch rail and receive the drunkenness that the wheel effort caused when the train passes through, can be to the degree of freedom of six directions of restriction switch rail, improve the fail safe nature of this switch rail.
Drawings
Fig. 1 is a schematic view of the point rail structure of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a schematic structural view of a point rail limiting mechanism according to the present invention;
fig. 6 is a sectional view showing the assembled state of the point rail and the point rail spacing mechanism according to the present invention.
Detailed Description
The point rail shown in fig. 1 is used in a tramway switch, where the point rail is defined by three sections consisting of: the point switch comprises a traction section 1, a deformation section 2 and a heel end 3, wherein the traction section 1 is a part connected with a point switch and is positioned at the free end of a point rail, and the point rail moves in the point rail by driving the traction section 1 through the point switch; the deformation section 2 is a part of the switch rail which mainly generates bending deformation, the traditional switch rail moves through a large gauge needle or a movable joint, so that a gap or flatness error exists at the connecting position of the traditional switch rail and the stock rail, and the running stability and safety of a train are influenced; the heel end 3 is then in the transition area between the point rail and the stock rail and is also the location for fixing the point rail. The different functions of the above parts indicate that the deformation section 2 is located between the traction section 1 and the heel end 3. As shown in fig. 2, a traction hole 9 connected with a switch machine is arranged at the traction section 1 for connecting with the switch machine conveniently, and the switch machine drives the point rail to deform more easily, as shown in fig. 3, deformation grooves 8 are arranged at the rail waist positions of two side walls of the deformation section 2 along the length direction of the point rail, the thickness of the deformation section 2 is reduced by arranging the deformation grooves 8, so that the rigidity of the deformation section 2 is reduced, the elasticity of the deformation section 2 is better, the deformation is more labor-saving, the processing premise of the deformation grooves 8 is that the contact part structure of the deformation section 2 and a wheel cannot be changed, the strength and the processing requirement of the point rail are considered, and the deformation grooves 8 are arranged behind the 56mm end surface of the point rail. The heel end 3 is equipped with the mount table 4 by adjacent stock rail one side, be equipped with mounting hole 5 on the mount table 4, fix this switch rail tail section 3 in the switch through mounting hole 5, be equipped with spacing groove 6 in 3 bottoms of tail section as shown in fig. 4, the wheel can be to an effort of switch rail when the train passes through the switch rail, if the switch rail fixed part is not hard up then can cause the switch rail drunkenness, and spacing groove 6 and the stop gear cooperation of following further explanation can prevent the switch rail along switch rail length direction drunkenness, improve the stability and the reliability of switch rail.
In order to meet the requirement of bending deformation of the point rail, the point rail is formed by milling NM400 alloy steel plates, and the point rail profile can be milled according to rail types of groove type rails for different stock rails. The height of the point rail can be determined according to the height of stock rails of different groove types, and the height of the point rail is determined according to the thickness of NM400 steel plate to be 96mm, 76mm and 56 mm. The switch rail is provided with a reduction value from a 38mm section, and each section reduction value is determined according to the wheel parameters of the tramcar. The contour of the working edge of the switch rail can be formed by processing the contour of the section of the working edge of different groove-shaped steel rails by a forming cutter. The non-working point rail is designed according to the point-hidden structure, the point rail and the closely-adhered section of the stock rail are processed into the inclination matched with the stock rail, and the non-closely-adhered section is processed vertically. Different mounting holes 5 can be machined and manufactured at the traction point of the front end of the point rail according to different switch machine equipment, and the deformation groove 8 is machined through milling.
As shown in fig. 5 and fig. 6, the limiting mechanism of the switch rail is matched in the turnout, the limiting mechanism comprises a large bedplate 10, a switch heel vertical plate 11, a vertical wall 12 and a fixed platform 13, the large bedplate 10 is fixed on a large base plate, the switch heel vertical plate 11 and the vertical wall 12 are respectively fixed at two ends of the large bedplate 10, the fixed platform 13 is arranged on the large bedplate 10 and positioned between the switch heel vertical plate 11 and the vertical wall 12, a fixed hole 17 is arranged on the fixed platform 13, a mounting hole 5 on the switch rail is matched with the fixed hole 17 for fixing the switch rail, a gap is arranged between the limiting platform 14 and the switch heel vertical plate 11, a group of rib plates 16 is further arranged between the limiting platform 14 and the switch heel vertical plate 11 at intervals, a limiting platform 14 is further arranged on the fixed platform 13, the limiting platform 14 can be embedded into a limiting groove 6 at the bottom of the switch rail to limit the switch rail from moving, a connecting hole 15 is arranged on the switch heel vertical plate 11, the switch rail waist of the switch rail mounted on the limiting, the rail web of the connecting part can be perfectly attached to the shape of the rail heel vertical plate 11 matched with the rail web of the stock rail, or a spacer 18 is arranged between the rail heel vertical plate 11 and the rail web, so that the spacer 18 is matched with the rail web in shape and the rail web to fill the recessed part of the rail web, in order to enable the rail heel vertical plate 11 to be close to the rail web as much as possible, a yielding groove 21 is arranged at the bottom of one side of the stock rail, which is close to the rail heel vertical plate 11, of the large bedplate 10, and the rail bottom part of the stock rail can be inserted into the yielding groove 21, so that the rail heel vertical plate 11 is close to the rail web as much. The gap between the rut following vertical plate 11 and the fixed platform 13 is also used for connecting the rut following vertical plate 11 with the rail waist, so that an installation space is provided for the nut, and the rib plate 16 plays a role in reinforcing the rut following vertical plate 11. A switch heel stop 19 is also provided between the upright wall 12 and the switch rail to prevent the upright wall 12 from interfering with the working surface of the switch rail. An adjusting sheet 20 is also arranged between the switch rail and the limiting mechanism, the adjusting sheet 20 is Z-shaped, and the adjusting sheets 20 on the two sides of the switch rail are respectively lapped on the rib plate 16 and the switch heel stop block 19. The arrangement of the Z-shaped adjusting sheet can adjust the width of the wheel rim groove at the heel end of the switch rail and can also prevent the vehicle from loosening when passing through the heel end of the switch rail. The limiting mechanism has the function of fixing the switch rail, the limiting platform limits the degree of freedom of the switch rail in the length direction, the rib plates and the stop blocks limit the degree of freedom of the switch rail in the width direction, and the bolts limit the degree of freedom of the switch rail in the height direction, so that the limiting mechanism can limit the function of the degree of freedom of the switch rail in six directions, when the elastic bending deformation is carried out, the stability and firmness of the heel end of the switch rail are ensured, and the passing safety of a train is improved.
Claims (8)
1. The utility model provides a tram is alloy steel elasticity tongue of can buckling for switch, this tongue is including traction section (1) of connecting the goat, can realize elastic deformation's deformation section (2) and the heel (3) of transition to the stock rail, its characterized in that: tail section (3) lean on adjacent stock rail one side to be equipped with mount table (4) on be equipped with mounting hole (5) of fixed switch rail tail section (3) bottom be equipped with spacing groove (6) that can restrict the switch rail and move along length direction drunkenness, deformation section (2) be located tail section (3) and pull between section (1) the both sides wall rail waist position of deformation section (2) be equipped with deformation groove (8) along switch rail length direction.
2. The elastically bendable point rail of alloy steel for the tramcar turnout according to claim 1, characterized in that: the switch rail is formed by milling NM400 steel, and the deformation groove (8) is positioned behind the 56mm section of the switch rail.
3. An elastically bendable tongue piece of alloy steel for a tramcar switch according to claim 1 or 2, characterized in that: the limiting groove (6) penetrates through the tail section (3) and the mounting table (4) along the width direction of the switch rail, and the traction section (1) is provided with a traction hole (9) connected with the switch.
4. The utility model provides a tram is alloy steel elasticity can buckle switch blade stop gear for switch, this switch blade is including traction section (1) of connecting the goat, can realize elastic deformation's deformation section (2) and transition tail section (3) to the stock rail, its characterized in that: the switch rail track limiting mechanism is characterized in that a mounting table (4) is arranged on the heel end (3) close to the inner side of a rail, a mounting hole (5) for fixing a tail section (3) of a switch rail is formed in the mounting table (4), a limiting groove (6) capable of limiting the switch rail to move along the length direction is formed in the bottom of the tail section (3), a deformation section (2) is located between the tail section (3) and a traction section (1), deformation grooves (8) capable of reducing the thickness of the deformation section (2) are formed in two side faces of the deformation section (2), the limiting mechanism comprises a large bedplate (10), a switch heel vertical plate (11) is arranged at one end, close to the switch rail adjacent to the switch rail mounted with the limiting mechanism, of the large bedplate (10), a vertical wall (12) is arranged at one end, far away from the switch rail adjacent to the switch rail mounted with the limiting mechanism, of the large bedplate (10), and a fixing table (13) for fixing the switch rail is further arranged on the large bedplate (, the fixing platform (13) is provided with a limiting platform (14) capable of being embedded into a limiting groove (6), the frog heel plate (11) is provided with a connecting hole (15) for connecting the frog heel plate (11) and the rail web of the point rail adjacent to the point rail mounted by the limiting mechanism, a group of rib plates (16) are arranged between the frog heel plate (11) and the limiting platform (14) at intervals, and the fixing platform (13) is provided with a fixing hole (17) matched with the mounting hole (5).
5. The elastically bendable point rail limiting mechanism for the tramcar turnout according to claim 4, which is characterized in that: this switch rail adopts NM400 steel milling process to form, deformation groove (8) be located the switch rail 56mm section back, spacing groove (6) run through tail section (3) and mount table (4) along the switch rail width direction traction section (1) be equipped with traction hole (9) that the goat is connected.
6. An elastically bendable alloy steel point rail limiting mechanism for a tramcar switch according to claim 4 or 5, characterized in that: and a spacer iron (18) for filling the rail web space is arranged between the switch heel vertical plate (11) and the rail web of the stock rail, and a stop block (19) is arranged between the vertical wall (12) and the switch rail.
7. The elastically bendable point rail limiting mechanism for the tramcar turnout as claimed in claim 6, characterized in that: an adjusting sheet (20) is arranged between the switch rail and the limiting mechanism, and the adjusting sheet (20) is Z-shaped.
8. The elastically bendable point rail limiting mechanism for the tramcar turnout according to claim 4, which is characterized in that: and one side of the bottom of the large bedplate (10), which is close to the stock rail adjacent to the switch rail mounted with the limiting mechanism, is provided with a yielding groove (21) for the rail bottom of the stock rail to be inserted into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218111.5A CN111287031A (en) | 2020-03-25 | 2020-03-25 | Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218111.5A CN111287031A (en) | 2020-03-25 | 2020-03-25 | Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111287031A true CN111287031A (en) | 2020-06-16 |
Family
ID=71024784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010218111.5A Pending CN111287031A (en) | 2020-03-25 | 2020-03-25 | Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111287031A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050623A2 (en) * | 1999-05-07 | 2000-11-08 | Enzesfeld-Caro Metallwerke AG | Railway switch |
| CN2835325Y (en) * | 2005-08-31 | 2006-11-08 | 宝山钢铁股份有限公司 | Multi-directional crossing of railroad turnout |
| KR20120035395A (en) * | 2010-10-05 | 2012-04-16 | 한국철도공사 | Rail turnout which have elasticity type point part |
| CN202881776U (en) * | 2012-11-01 | 2013-04-17 | 中铁工程设计咨询集团有限公司 | Turnout for urban railway traffic |
| CN105862522A (en) * | 2016-04-19 | 2016-08-17 | 中铁宝桥集团有限公司 | Urban railway transport vibration attenuation turnout structure |
| CN206428528U (en) * | 2016-12-02 | 2017-08-22 | 中国铁道科学研究院 | Railway switch |
| CN108517726A (en) * | 2018-06-24 | 2018-09-11 | 中国铁路设计集团有限公司 | A kind of novel urban rail turnout switch |
| CN208533272U (en) * | 2018-06-24 | 2019-02-22 | 中国铁路设计集团有限公司 | Novel urban rail turnout switch |
| CN212270542U (en) * | 2020-03-25 | 2021-01-01 | 中铁宝桥集团有限公司 | Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch |
-
2020
- 2020-03-25 CN CN202010218111.5A patent/CN111287031A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050623A2 (en) * | 1999-05-07 | 2000-11-08 | Enzesfeld-Caro Metallwerke AG | Railway switch |
| CN2835325Y (en) * | 2005-08-31 | 2006-11-08 | 宝山钢铁股份有限公司 | Multi-directional crossing of railroad turnout |
| KR20120035395A (en) * | 2010-10-05 | 2012-04-16 | 한국철도공사 | Rail turnout which have elasticity type point part |
| CN202881776U (en) * | 2012-11-01 | 2013-04-17 | 中铁工程设计咨询集团有限公司 | Turnout for urban railway traffic |
| CN105862522A (en) * | 2016-04-19 | 2016-08-17 | 中铁宝桥集团有限公司 | Urban railway transport vibration attenuation turnout structure |
| CN206428528U (en) * | 2016-12-02 | 2017-08-22 | 中国铁道科学研究院 | Railway switch |
| CN108517726A (en) * | 2018-06-24 | 2018-09-11 | 中国铁路设计集团有限公司 | A kind of novel urban rail turnout switch |
| CN208533272U (en) * | 2018-06-24 | 2019-02-22 | 中国铁路设计集团有限公司 | Novel urban rail turnout switch |
| CN212270542U (en) * | 2020-03-25 | 2021-01-01 | 中铁宝桥集团有限公司 | Streetcar is alloy steel elasticity tongue and stop gear that can bend for switch |
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