CN216809393U - Large-adjustment-amount fastener for ballastless track railway turnout - Google Patents
Large-adjustment-amount fastener for ballastless track railway turnout Download PDFInfo
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- CN216809393U CN216809393U CN202220413515.4U CN202220413515U CN216809393U CN 216809393 U CN216809393 U CN 216809393U CN 202220413515 U CN202220413515 U CN 202220413515U CN 216809393 U CN216809393 U CN 216809393U
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Abstract
The utility model discloses a large-adjustment-amount fastener for a ballastless track railway turnout.A shoulder blocking seat is provided with an iron shoulder, the shoulder blocking seat is bent downwards to form an arched part parallel to a steel rail, the lower surface of the iron shoulder blocking seat is provided with a convex part embedded into the arched part, and a spiral spike penetrates through the iron shoulder blocking seat and the shoulder blocking seat from top to bottom; the first buckling and pressing component is arranged on the iron retaining shoulder, one end of the first buckling and pressing component is buckled and pressed on the iron retaining shoulder, the other end of the first buckling and pressing component is buckled and pressed on the iron base plate, the second buckling and pressing component is arranged on the iron base plate, one end of the second buckling and pressing component is buckled and pressed on the iron base plate, and the other end of the second buckling and pressing component is buckled and pressed on the shoulder surface of the steel rail; the iron base plate is symmetrically provided with two bosses, the lower rail base plate is positioned below the steel rail and arranged between the two bosses, and the lower iron base plate elastic base plate is arranged between the iron base plate and the rail bearing surface. The large-adjustment-amount fastener for the ballastless track railway turnout overcomes the defects of the conventional fastener for the ballastless track railway turnout, and has the advantages of large steel rail position adjustment amount, strong transverse load resistance, good structural stability and less maintenance workload.
Description
Technical Field
The utility model relates to the technical field of railway engineering, in particular to a large-adjustment-amount fastener for a railway turnout of a ballastless track.
Background
In order to solve the problem of maintenance of ballast tracks such as ballast bed cleaning, ballastless tracks are usually paved in tunnels and bridges. Under the condition that the terrain is particularly difficult, stations need to be arranged in tunnels or on bridges, and when ballastless track structural forms are adopted in the tunnels or on the bridges, ballastless turnouts need to be correspondingly adopted. Because the ballastless track can not be used for track lifting tamping operation to adjust the height, the left position and the right position of the steel rail, the fastener is required to have larger steel rail position adjusting capacity.
In order to ensure sufficient transverse load resistance, railway turnout fasteners usually adopt a pre-buried iron seat mode. However, the fastener needs to have a high enough height of the embedded iron seat to realize a large adjustment amount of the height of the steel rail, which causes difficulty in the production of the switch tie and easily causes the problems of the embedded iron seat, such as deflection and the like, and influences the product quality and the production efficiency. In addition, after the embedded iron seat is damaged in the field use process, the replacement difficulty is very high.
The existing ballastless track railway turnout fastener adopts a pre-buried iron seat mode, the height of the pre-buried iron seat is high for enough steel rail height position adjusting capacity, the problems that the pre-buried iron seat is inclined and the like are easily generated in the production process of the turnout sleeper, and the product quality and the production efficiency are influenced. In addition, after the embedded iron seat is damaged in the field use process, the replacement difficulty is very high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large-adjustment-amount fastener for a ballastless track railway turnout, which overcomes the defects of the conventional fastener for the ballastless track railway turnout and has the advantages of large steel rail position adjustment amount, strong transverse load resistance, good structural stability and less maintenance workload.
In order to achieve the above object, the present invention provides a large adjustment fastener for a ballastless track railway switch, comprising: the steel rail fastening device comprises an iron base plate, an iron base plate lower elastic base plate, a rail lower base plate, a spiral rail nail, a first buckling and pressing assembly, a second buckling and pressing assembly and shoulder blocking seats symmetrically arranged on two sides of a steel rail; the iron shoulder block is arranged on the shoulder block seat, the shoulder block seat is bent downwards to form an arch part parallel to the steel rail, a convex part embedded into the arch part is formed on the lower surface of the iron shoulder block, and the spiral spike penetrates through the iron shoulder block and the shoulder block seat from top to bottom; the first buckling and pressing component is mounted on the iron retaining shoulder, one end of the first buckling and pressing component is buckled and pressed on the iron retaining shoulder, the other end of the first buckling and pressing component is buckled and pressed on the iron base plate, the second buckling and pressing component is mounted on the iron base plate, one end of the second buckling and pressing component is buckled and pressed on the iron base plate, and the other end of the second buckling and pressing component is buckled and pressed on the shoulder surface of the steel rail; the steel rail is characterized in that two bosses are symmetrically arranged on the iron base plate, the lower rail base plate is located below the steel rail and arranged between the two bosses, and the lower iron base plate elastic base plate is arranged between the iron base plate and the rail bearing surface.
Preferably, the first crimping assembly comprises: gauge dog, first T type bolt and first bullet strip, be provided with the gauge board of extension down and the clamp plate of horizontal extension on the gauge dog, the gauge board set up in the iron tie plate with between the iron fender shoulder, first T type bolt passes from bottom to top the iron keeps off behind the shoulder and the first bullet strip through the nut locking, the one end of first bullet strip extrude in on the iron keeps off the shoulder, the other end extrude in on the clamp plate.
Preferably, a first limiting groove for clamping the iron retaining shoulder is formed at one end, back to the steel rail, of the gauge block.
Preferably, the iron catch shoulder comprises: keep off the shoulder body, two keep off the shoulder body one end dorsad each other and be provided with the side groove, the top in side groove is provided with provides the opening that first T type bolt transversely got into, the inside top surface of side groove inwards cave in be formed with first T type bolt assorted counter sink, be provided with first bullet strip supporting groove on the fender shoulder body.
Preferably, the second crimping assembly comprises: the second T-shaped bolt penetrates through the boss and the second elastic strip from bottom to top and then is locked through a nut, the insulating gauge block is arranged between the boss and the steel rail and extruded on the shoulder surface of the steel rail, one end of the second elastic strip is extruded on the boss, and the other end of the second elastic strip is extruded on the gauge block; and a second elastic strip bearing groove for supporting the second elastic strip is arranged on the boss.
Preferably, an extrusion part for extruding a rail shoulder surface is formed at one end, facing the rail, of the insulating gauge block, and a second limiting groove for clamping the boss is formed at one end, facing away from the rail, of the gauge block.
Preferably, the bottom of the lower rail base plate is provided with limiting strips along two ends in the extending direction of the steel rail, and first angle grooves for limiting the longitudinal movement of the insulating gauge block are formed at two ends of the lower rail base plate in the extending direction of the sleeper.
Preferably, keep off the shoulder seat for casting iron seat, the arch portion is the parabola type, it is used for providing to keep off to be provided with on the shoulder seat the first through-hole that the spiral spike passed, it is provided with the second through-hole that the spiral spike passed to keep off the shoulder to be provided with on the iron.
Preferably, at least one iron base plate lower heightening base plate is arranged between the iron base plate lower elastic base plate and the sleeper, and fifth limiting grooves for clamping the iron retaining shoulders are arranged at two ends of the iron base plate lower heightening base plate; and/or the presence of a gas in the gas,
and a rail lower fine tuning base plate is arranged between the rail lower base plate and the iron base plate.
Preferably, the two ends of the iron base plate are provided with third limiting grooves for clamping the iron retaining shoulders, the two ends of the elastic base plate under the iron base plate are provided with fourth limiting grooves for clamping the iron retaining shoulders, and second corner grooves are formed at the inner ends of the fourth limiting grooves.
According to the technical scheme, the large-adjustment-amount fastener for the ballastless track railway turnout overcomes the defects of the conventional fastener for the ballastless track railway turnout, and has the advantages of large steel rail position adjustment amount, strong transverse load resistance, good structural stability and less maintenance workload.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a cross-sectional structural view A-A of a preferred embodiment of the fastener of FIG. 2;
FIG. 2 is a top view of a preferred embodiment of the fastener of the utility model;
FIG. 3 is a top view of a preferred embodiment of a gage stop;
FIG. 4 is a cross-sectional view A-A of a preferred embodiment of the gauge block of FIG. 3;
FIG. 5 is a top view of a preferred embodiment of an iron shim plate;
FIG. 6 is a sectional structural view A-A of a preferred embodiment of the iron shim plate of FIG. 5;
FIG. 7 is a top view of a preferred embodiment of an elastic pad under an iron pad;
FIG. 8 is a sectional structural view A-A of a preferred embodiment of FIG. 7;
FIG. 9 is a top view of a preferred embodiment of an iron tie plate down-set shim plate;
FIG. 10 is a top view of a preferred embodiment of the iron stop shoulder;
FIG. 11 is a cross-sectional structural view A-A of a preferred embodiment of the iron stop shoulder of FIG. 10;
FIG. 12 is a side view of a preferred embodiment of the iron stop shoulder;
FIG. 13 is a block diagram of a preferred embodiment of a first T-bolt or a second T-bolt;
FIG. 14 is a top view of a preferred embodiment of a shoulder stop;
FIG. 15 is a sectional structural view A-A of a preferred embodiment of the shoulder rest of FIG. 14;
FIG. 16 is a top view of a preferred embodiment of an insulated gage block;
FIG. 17 is a cross-sectional view of a preferred embodiment of an insulated gage block;
FIG. 18 is a top view of a preferred embodiment of an under-rail pad;
FIG. 19 is a side view of a preferred embodiment of an under-rail pad;
FIG. 20 is a top view of a preferred embodiment of an under-rail trim pad.
Description of the reference numerals
1-a nut; 2-a flat washer; 3-a first T-bolt; 4-a first elastic strip; 5-a spiral spike; 6-heavy duty spring washers; 7-iron shoulder blocks; 8-shoulder blocking seat; 9-embedding a sleeve; 10-gauge block; 11-a second T-bolt; 12-a second elastic strip; 13-insulating gauge blocks; 14-rail lower tie plate; 15-iron backing plate; 16-an elastic backing plate under the iron backing plate; 17-fine tuning the base plate under the rail; 18-raising the base plate under the iron base plate; 19-a first limit groove; 20-pressing a plate; 21-a boss; 22-a second spring bar supporting groove; 23-plum blossom holes; 24-a second corner groove; 25-a fifth limiting groove; 26-a first spring bar supporting groove; 27-opening; 28-counter sink; 29-a second via; 30-a convex part; 31-a second limiting groove; 32-an extrusion; 33-a spacing bar; 34-a first corner groove; 35-a first via; 36-an arch; 37-third limit groove.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1-20, the large-adjustment-amount fastener for the ballastless track railway turnout comprises: the device comprises an iron base plate 15, an iron base plate lower elastic base plate 16, a rail lower base plate 14, a spiral spike 5, a first buckling and pressing assembly, a second buckling and pressing assembly and shoulder blocking seats 8 symmetrically arranged on two sides of a steel rail; the shoulder blocking seat 8 is provided with an iron shoulder block 7, the shoulder blocking seat 8 is bent downwards to form an arch part 36 parallel to the steel rail, the lower surface of the iron shoulder block 7 is provided with a convex part 30 embedded into the arch part 36, and the screw spike 5 penetrates through the iron shoulder block 7 and the shoulder blocking seat 8 from top to bottom; the first buckling and pressing component is arranged on the iron retaining shoulder 7, one end of the first buckling and pressing component is buckled and pressed on the iron retaining shoulder 7, the other end of the first buckling and pressing component is buckled and pressed on the iron base plate 15, the second buckling and pressing component is arranged on the iron base plate 15, one end of the second buckling and pressing component is buckled and pressed on the iron base plate 15, and the other end of the second buckling and pressing component is buckled and pressed on the shoulder surface of the steel rail; two bosses 21 are symmetrically arranged on the iron base plate 15, the rail lower base plate 14 is positioned below the steel rail and is arranged between the two bosses 21, and the iron base plate lower elastic base plate 16 is arranged between the iron base plate 15 and the rail bearing surface.
Through the implementation of the technical scheme, the large-adjustment-amount fastener for the turnout of the ballastless track railway overcomes the defects of the conventional fastener for the turnout of the ballastless track railway, and has the advantages of large steel rail position adjustment amount, strong transverse load resistance, good structural stability and less maintenance workload. In the utility model, the embedded sleeve 9 matched with the screw spike 5 is embedded in the sleeper, the embedded sleeve 9 can be a nylon sleeve, so that the sleeper has better insulation, and in addition, a heavy spring washer 6 is arranged between the screw spike 5 and the iron retaining shoulder 7.
In this embodiment, the first crimping assembly includes: gauge dog 10, first T type bolt 3 and first bullet strip 4, be provided with down the gauge board of extension and the clamp plate 20 of horizontal extension on the gauge dog 10, the gauge board set up in iron tie plate 15 with between the iron fender shoulder 7, first T type bolt 3 passes from bottom to top iron fender shoulder 7 and first bullet strip 4 back are locked through nut 1, the one end of first bullet strip 4 extrude in on the iron fender shoulder 7, the other end extrude in on the clamp plate 20. The transverse distance of the steel rail can be finely adjusted through the gauge stop 10, and the first T-shaped bolt 3 penetrates through the iron stop shoulder 7, the first elastic strip 4 and the flat washer 2 and then is locked through the nut 1.
In this embodiment, a first limit groove 19 for engaging the iron shoulder 7 is formed at an end of the gauge block 10 facing away from the rail. This arrangement prevents the gauge stops 10 from disengaging.
In this embodiment, the iron stop shoulder 7 includes: the shoulder body, two the one end that the shoulder body dorsad each other is provided with the side channel, the top in side channel is provided with provides the opening 27 that first T type bolt 3 transversely got into, the inside sunken countersunk hole 28 that is formed with first T type bolt 3 assorted of the interior top surface in side channel, be provided with first bullet strip supporting groove 26 on the shoulder body. The tip of first T type bolt 3 is injectd and can be avoided sliding in counter bore 28 and drop, the setting of opening 27 is convenient for the installation of first T type bolt 3, iron keeps off shoulder 7 wholly to be the right angle shape, one side that is close to the rail sets up to the facade, can provide higher height-adjusting condition, iron keeps off and is provided with the backup pad between shoulder 7's the horizontal plane and the facade, the one end extrusion of first bullet strip 4 is in this backup pad, first bullet strip supporting groove 26 then sets up and is used for supporting first bullet strip 4 in this backup pad.
In this embodiment, the second crimping assembly includes: the rail gauge block comprises an insulating gauge block 13, a second T-shaped bolt 11 and a second elastic strip 12, wherein the second T-shaped bolt 11 penetrates through the boss 21 and the second elastic strip 12 from bottom to top and then is locked through a nut 1, the insulating gauge block 13 is arranged between the boss 21 and the steel rail and extruded on the shoulder surface of the steel rail, one end of the second elastic strip 12 is extruded on the boss 21, and the other end of the second elastic strip is extruded on the gauge block; the boss 21 is provided with a second elastic strip supporting groove 22 for supporting the second elastic strip 12. The bottom of the boss 21 is provided with a quincuncial hole 23 for limiting the rotation of the second T-shaped bolt 11, the second T-shaped bolt 11 passes through the boss 21, the second elastic strip 12 and the flat washer 2 and then is locked by the nut 1, and the shoulder surface of the steel rail is elastically extruded by the second elastic strip 12.
In this embodiment, a pressing portion 32 for pressing a rail shoulder surface is formed at one end of the insulating gauge block 13 facing the rail, and a second stopper groove 31 for engaging with the boss 21 is formed at one end of the gauge block facing away from the rail. The second limiting groove 31 can prevent the insulating gauge block 13 from sliding off, and the extrusion part 32 can elastically extrude the steel rail.
In this embodiment, the bottom of the under-rail pad 14 is provided with a limiting strip 33 at two ends in the extending direction of the steel rail, and the under-rail pad 14 is provided with a first angular groove 34 at two ends in the extending direction of the sleeper for limiting the longitudinal movement of the insulating gauge block 13. The limiting strip 33 is clamped with the iron backing plate 15, so that the rail lower backing plate 14 can be prevented from slipping off, and the first corner groove 34 is used for accommodating the insulating gauge block 13 extending into the first corner groove.
In this embodiment, the shoulder block seat 8 is a cast iron seat, the arch portion 36 is a parabolic shape, the shoulder block seat 8 is provided with a first through hole 35 for allowing the screw spike 5 to pass through, and the iron shoulder block 7 is provided with a second through hole 29 for allowing the screw spike 5 to pass through. Correspondingly, the sleeper is provided with a small groove corresponding to the arch 36 of the shoulder rest 8, which are engaged to increase the lateral load, although the arch 36 may have other shapes than a parabolic shape, such as an elliptical shape, a triangular shape, a rectangular shape or a semicircular shape.
In this embodiment, at least one iron tie plate lower elevation tie plate 18 is arranged between the iron tie plate lower elastic tie plate 16 and the sleeper, and fifth limiting grooves 25 for clamping the iron stop shoulders 7 are arranged at two ends of the iron tie plate lower elevation tie plate 18; and/or an under-rail fine adjustment backing plate 17 is arranged between the under-rail backing plate 14 and the iron backing plate 15. The iron tie plate lower heightening tie plate 18 and the rail lower fine adjusting tie plate 17 may be provided only one kind or both kinds depending on the adjustment amount. The fifth limiting groove 25 can prevent the iron tie plate heightening lower tie plate 18 from slipping.
In this embodiment, the two ends of the iron backing plate 15 are provided with third limiting grooves 37 for engaging with the iron blocking shoulders 7, the two ends of the iron backing plate lower elastic backing plate 16 are provided with fourth limiting grooves for engaging with the iron blocking shoulders 7, and the inner ends of the fourth limiting grooves are formed with second corner grooves 24. Iron tie plate 15 keeps off on the shoulder 7 through the third spacing recess 37 block, and iron tie plate lower elastic backing plate 16 keeps off on the shoulder 7 through the fourth spacing recess block, and the effect is preventing the slippage, and in addition, third spacing recess 37 can also provide the lower edge of gauge dog 10 and pass to extend to in the second angular groove 24.
In this embodiment, in order to further provide an arrangement of the arch portion 36 and the screw spike 5, the distance between the arch portion 36 and the rail is greater than the distance between the screw spike 5 and the rail.
This fastener major structure characteristics:
1. the small grooves and the embedded sleeves 9 are arranged in advance at the two sides of the steel rail on the concrete sleeper and used for positioning and fixing the shoulder blocking seats 8 and the iron shoulder blocking seats 7, and the original embedded iron seats are replaced and used for resisting the transverse load of the train. The positioning accuracy of the iron seat is higher, the installation is more convenient, and the occurrence of the deflection of the embedded iron seat in the production process of the sleeper is avoided.
2. The shoulder blocking seat 8 and the iron shoulder blocking seat 7 are fixed through the spiral spike 5 and the embedded sleeve 9, and are not embedded in a concrete sleeper in advance, so that the problem that the embedded iron seat cannot be demoulded when the sleeper is too high in production is solved.
3. The cast iron seat is fixed with the embedded sleeve 9 through the spiral spike 5, can be disassembled and replaced after being damaged on site, and the problem that the embedded iron seat cannot be replaced after being damaged on site is solved.
4. The train transverse load is mainly borne by the iron seat, so that the stress of the concrete shoulder is effectively reduced, and the larger train transverse load can be resisted.
5. The nylon sleeve with better insulating property is pre-buried in the concrete sleeper, so that the insulating property of the fastener system is effectively improved.
6. The lower elastic backing plate 16 of the iron backing plate is arranged below the iron backing plate 15, so that the fastener system has good elasticity and reduces the tipping amount of the steel rail.
7. Through the change of the shoulder block seats 8 and the iron shoulder blocks 7 with different specifications, the height and the left and right position adjusting capability of the steel rail of the fastener system can be effectively improved, so that the requirements of field installation and maintenance are met.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a ballastless track railway switch is with big adjustment volume fastener which characterized in that includes: the steel rail fastening device comprises an iron base plate (15), an elastic base plate (16) under the iron base plate, a rail lower base plate (14), a spiral spike (5), a first buckling and pressing assembly, a second buckling and pressing assembly and shoulder blocking seats (8) symmetrically arranged on two sides of a steel rail;
an iron shoulder (7) is arranged on the shoulder blocking seat (8), an arch part (36) parallel to the steel rail is formed by downwards bending the shoulder blocking seat (8), a convex part (30) embedded into the arch part (36) is formed on the lower surface of the iron shoulder (7), and the spiral spike (5) penetrates through the iron shoulder (7) and the shoulder blocking seat (8) from top to bottom;
the first buckling and pressing component is mounted on the iron retaining shoulder (7), one end of the first buckling and pressing component is buckled and pressed on the iron retaining shoulder (7), the other end of the first buckling and pressing component is buckled and pressed on the iron base plate (15), the second buckling and pressing component is mounted on the iron base plate (15), one end of the second buckling and pressing component is buckled and pressed on the iron base plate (15), and the other end of the second buckling and pressing component is buckled and pressed on the shoulder surface of the steel rail;
the steel rail is characterized in that two bosses (21) are symmetrically arranged on the iron base plate (15), the lower rail base plate (14) is located below the steel rail and arranged between the two bosses (21), and the lower iron base plate elastic base plate (16) is arranged between the iron base plate (15) and the rail bearing surface.
2. The large-adjustment-amount fastener for the ballastless track railway switch of claim 1, wherein the first fastening assembly comprises: gauge dog (10), first T type bolt (3) and first bullet strip (4), be provided with down the gauge board of extension and transversely extend clamp plate (20) on gauge dog (10), the gauge board set up in iron tie plate (15) with iron keeps off between the shoulder (7), first T type bolt (3) are passed from bottom to top iron keeps off and is locked through nut (1) behind shoulder (7) and first bullet strip (4), the one end of first bullet strip (4) extrude in iron keeps off on the shoulder (7), the other end extrude in on clamp plate (20).
3. The large-adjustment-amount fastener for the ballastless track railway switch according to claim 2, wherein a first limit groove (19) for clamping the iron retaining shoulder (7) is formed at one end of the gauge block (10) facing away from the steel rail.
4. The large-adjustment-amount fastener for the ballastless track railway switch according to claim 2, wherein the iron retaining shoulder (7) comprises: keep off the shoulder body, two keep off the shoulder body one end dorsad each other and be provided with the side groove, the top in side groove is provided with provides opening (27) that first T type bolt (3) transversely got into, the inside sunken countersunk hole (28) that are formed with of the interior top surface in side groove with first T type bolt (3) assorted, be provided with first bullet strip supporting groove (26) on the fender shoulder body.
5. The large-adjustment-amount fastener for the ballastless track railway switch of claim 1, wherein the second fastening assembly comprises: the rail gauge block comprises an insulation rail gauge block (13), a second T-shaped bolt (11) and a second elastic strip (12), wherein the second T-shaped bolt (11) penetrates through the boss (21) and the second elastic strip (12) from bottom to top and then is locked through a nut (1), the insulation rail gauge block (13) is arranged between the boss (21) and the steel rail and extruded on the shoulder surface of the steel rail, one end of the second elastic strip (12) is extruded on the boss (21), and the other end of the second elastic strip is extruded on the rail gauge block;
and a second elastic strip bearing groove (22) for supporting the second elastic strip (12) is arranged on the boss (21).
6. The large-adjustment-amount fastener for the ballastless track railway switch according to claim 5, wherein an end of the insulating gauge block (13) facing the rail is formed with a pressing portion (32) for pressing a rail shoulder surface, and an end of the gauge block facing away from the rail is formed with a second limit groove (31) for engaging with the boss (21).
7. The large-adjustment-amount fastener for the ballastless track railway turnout according to claim 5, wherein a limiting strip (33) is arranged at the bottom of the lower rail pad (14) along both ends of the extension direction of the steel rail, and a first angular groove (34) for limiting the longitudinal movement of the insulating gauge block (13) is formed at both ends of the lower rail pad (14) along the extension direction of the sleeper.
8. The large-adjustment-amount fastener for the ballastless track railway turnout according to claim 1, wherein the shoulder block seat (8) is a cast iron seat, the arch part (36) is of a parabolic shape, a first through hole (35) for allowing the spiral spike (5) to pass through is arranged on the shoulder block seat (8), and a second through hole (29) for allowing the spiral spike (5) to pass through is arranged on the iron shoulder block (7).
9. The large-adjustment-amount fastener for the turnout of the ballastless track railway according to any one of claims 1-8, wherein at least one iron tie plate downward-adjustment-height tie plate (18) is arranged between the iron tie plate lower elastic tie plate (16) and the sleeper, and fifth limiting grooves (25) for clamping the iron blocking shoulders (7) are arranged at two ends of the iron tie plate downward-adjustment-height tie plate (18); and/or the presence of a gas in the gas,
and a rail lower fine tuning base plate (17) is arranged between the rail lower base plate (14) and the iron base plate (15).
10. The large-adjustment-amount fastener for the ballastless track railway turnout according to claim 1, wherein a third limiting groove (37) for clamping the iron blocking shoulder (7) is arranged at each of two ends of the iron base plate (15), a fourth limiting groove for clamping the iron blocking shoulder (7) is arranged at each of two ends of the elastic base plate (16) below the iron base plate, and a second corner groove (24) is formed at the inner end of the fourth limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220413515.4U CN216809393U (en) | 2022-02-28 | 2022-02-28 | Large-adjustment-amount fastener for ballastless track railway turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220413515.4U CN216809393U (en) | 2022-02-28 | 2022-02-28 | Large-adjustment-amount fastener for ballastless track railway turnout |
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| CN216809393U true CN216809393U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220413515.4U Active CN216809393U (en) | 2022-02-28 | 2022-02-28 | Large-adjustment-amount fastener for ballastless track railway turnout |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115058928A (en) * | 2022-07-25 | 2022-09-16 | 西南交通大学 | Composite clamp for fine adjustment operation of ballastless track |
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2022
- 2022-02-28 CN CN202220413515.4U patent/CN216809393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115058928A (en) * | 2022-07-25 | 2022-09-16 | 西南交通大学 | Composite clamp for fine adjustment operation of ballastless track |
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