Track fastener system for overhauling trench

Abstract

The utility model relates to a rail fastener system for overhauling a trench. The track fastener system for overhauling the trench comprises an L-shaped base plate, a fastening mechanism, a connecting bolt and an expansion sleeve, the base plate comprises a flat plate and a vertical plate; the flat plate abuts against the ground on two sides of the maintenance trench. The vertical plate is fixedly connected with the end of the flat plate and abuts against the side wall of the overhaul trench. The flat plate and the vertical plate are connected with the overhaul trench through connecting bolts and expansion sleeves; and the fastener mechanism is arranged on the flat plate and is buckled with the track. The base plate is L-shaped and can be vertically connected with a connecting bolt and an expansion sleeve, so that the impact resistance of the base plate is improved, and the base plate is prevented from being embedded into the ground on the two sides of an overhaul trench to increase the replacement difficulty of a fastener system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of locomotive overhaul, in particular to a track fastener system for overhaul ditch. BACKGROUND

[0002] The overhaul ditch is an important facility for the maintenance and overhaul of railway locomotives, mainly used for checking and repairing the bottom of the locomotive. The overhaul ditch is usually 1.5 to 2 meters deep and several tens to hundreds of meters long; symmetrical tracks are provided on both sides of the overhaul ditch to allow the train to run above the overhaul ditch. The body of the overhaul ditch is a concrete structure. The track is connected with the overhaul ditch through a fastener system. In order to ensure sufficient working space for the overhaul personnel, the track of the overhaul ditch is not provided with transverse sleepers. Therefore, the fastener system can only bear the impact of the locomotive running on the track, and needs to be replaced regularly to ensure the safety of the overhaul. The existing fastener system is connected with the overhaul ditch through vertical bolts, which can better limit the track horizontally, but the vertical limiting effect of the track is not good; the pad plate of the fastener system is embedded into the concrete ground under the action of the impact force of the train, and the pad plate is rusted for a long time, making it very inconvenient to replace the fastener system. SUMMARY

[0003] The utility model aims at solving the above problems and provides a track fastener system for an overhaul ditch.

[0004] The technical scheme of the utility model is as follows: a track fastener system for an overhaul ditch comprises an L-shaped pad plate, a fastening mechanism, connecting bolts and an expansion sleeve; the pad plate comprises a flat plate and a vertical plate; the flat plate abuts against the ground on both sides of the overhaul ditch; the vertical plate is fixedly connected with the end of the flat plate and abuts against the side wall of the overhaul ditch; the flat plate and the vertical plate are connected with the overhaul ditch through the connecting bolts and the expansion sleeve; first, impact drills are used to drill connecting holes in the corresponding positions on the ground on both sides of the overhaul ditch and the side wall of the overhaul ditch; then the expansion sleeve is inserted into the connecting hole; the connecting bolt is screwed with the expansion sleeve after penetrating through the pad plate; the connecting bolt expands the expansion sleeve, which fills the connecting hole, so as to connect the pad plate with the overhaul ditch; the connecting bolt and the expansion sleeve connected with the flat plate can provide horizontal constraint for the fastener system and ensure that the track is in the appropriate track gauge; the connecting bolt and the expansion sleeve connected with the vertical plate can provide vertical constraint for the fastener system and improve the impact resistance of the pad plate, so as to prevent the pad plate from being embedded into the ground on both sides of the overhaul ditch and increase the difficulty of replacing the fastener system; the fastening mechanism is arranged on the flat plate and is fastened with the track; the fastening mechanism is used to fasten the guide rail.

[0005] Preferably, the track fastener system for the maintenance pit further comprises a flat pad and an elastic pad, both of which are sleeved on the connecting bolt; the flat pad abuts against the pad plate to increase the connecting area with the pad plate and improve the connecting stability of the connecting bolt and the pad plate; the elastic pad is arranged between the bolt head of the connecting bolt and the flat pad, which can improve the impact resistance of the connecting bolt and ensure the connecting stability of the connecting bolt.

[0006] Further, the buckling mechanism comprises a buckling assembly; the buckling assembly comprises a buckling seat integrated with the flat plate, a T-shaped bolt vertically upwardly arranged, a buckling strip, a buckling nut and a buckling strip; one side of the buckling seat transversely is provided with a buckling strip abutting against the buckling strip to horizontally constrain the buckling strip; the other side of the buckling seat transversely is provided with a limiting groove matched with the buckling strip to horizontally constrain the buckling strip; the middle part of the buckling seat is provided with a sliding groove longitudinally penetrating and slidingly matched with the bolt head of the T-shaped bolt; the bolt head of the T-shaped bolt is slid into the sliding groove for assembly; the buckling strip abuts against the lower wing plate of the track to horizontally and vertically constrain the lower wing plate of the track; one end of the buckling strip abuts against the limiting groove to be horizontally and vertically limited; the other end of the buckling strip abuts against the buckling strip to vertically limit the buckling strip; the buckling nut is threadedly matched with the T-shaped bolt to realize stable connection; the buckling nut abuts against the middle part of the buckling strip to fully limit the buckling strip, and then the buckling strip fully limits the lower wing plate of the track.

[0007] Further, one side of the limiting groove is provided with a buckling bean matched with the buckling strip, and the other side is provided with an upward arc-shaped edge; the buckling bean and the arc-shaped edge are matched with each other to fully horizontally constrain the buckling strip.

[0008] Further, the groove opening of the sliding groove towards the limiting groove is provided with a blocking strip; the bolt head of the T-shaped bolt can enter the sliding groove from below the blocking strip; then, after the T-shaped bolt is threadedly matched with the buckling nut, the blocking strip can prevent the T-shaped bolt from being detached from the sliding groove.

[0009] Further, the buckling assembly further comprises a buckling flat pad; the buckling flat pad is arranged between the buckling strip and the buckling nut; the buckling flat pad can ensure that the buckling nut presses the middle part of the buckling strip.

[0010] Further, the side of the buckling seat abutting against the buckling strip is symmetrically provided with clamping blocks; the buckling strip is arranged between the clamping blocks; the clamping blocks horizontally limit the buckling strip to prevent the buckling strip from horizontally separating.

[0011] Further, the middle part of the edge of the buckling strip is provided with a square groove corresponding to and matched with the sliding groove; when the fastener system is replaced, the buckling strip can be replaced by penetrating the square groove through the sliding groove, which improves the replacement efficiency.

[0012] Further, the buckle mechanism further comprises a buckle pressing block integrated with the flat plate; the buckle pressing block and the buckle assembly are arranged on both sides of the lower wing plate of the track; the buckle pressing block is provided with a buckle pressing groove matched with the edge of the lower wing plate of the track; the buckle pressing block realizes buckling of the lower wing plate of the track through the buckle pressing groove; compared with the buckle assembly, the buckle pressing block has simple structure and is easy to manufacture.

[0013] Further, the buckle pressing block is arranged close to one side of the vertical plate; when the track is installed, the track can be hoisted between the buckle pressing block and the buckle seat, then the track is horizontally pushed to match the track with the buckle pressing groove, and then the buckle assembly is used to fix the track; in this way, the track replacement can be completed by the maintenance personnel on one side of the track, and the replacement process is safer.

[0014] Further, the buckle mechanism has two buckle assemblies; the two buckle assemblies are symmetrically arranged on both sides of the track; in this way, the operation of horizontally pushing the track can be reduced, the operation steps can be reduced, and the operation efficiency can be improved.

[0015] The utility model discloses a track fastener system for overhaul ditch has the following advantages:

[0016] (1) the utility model discloses a gasket is L -shaped, can vertical plate connection connecting bolt, expansion sleeve, to improve the impact resistance of gasket, to prevent gasket inlaying to the two sides of the ground of overhaul ditch and increase the replacement difficulty of fastener system;

[0017] (2) the utility model discloses a buckle pressing block realizes buckling of the lower wing plate of the track through the buckle pressing groove; compared with the buckle assembly, the buckle pressing block has simple structure and is easy to manufacture. The buckle pressing block is arranged close to one side of the vertical plate; when the track is installed, the track can be hoisted between the buckle pressing block and the buckle seat, then the track is horizontally pushed to match the track with the buckle pressing groove, and then the buckle assembly is used to fix the track; in this way, the track replacement can be completed by the maintenance personnel on one side of the track, and the replacement process is safer;

[0018] (3) the utility model discloses a buckle mechanism has two buckle assemblies; the two buckle assemblies are symmetrically arranged on both sides of the track; in this way, the operation of horizontally pushing the track can be reduced, the operation steps can be reduced, and the operation efficiency can be improved. DRAWINGS

[0019] Figure 1 It is the use state schematic drawing of the utility model track fastener system for overhaul ditch in embodiment one;

[0020] Figure 2 It is Figure 1 I enlarged view;

[0021] Figure 3 It is the perspective drawing of the utility model track fastener system for overhaul ditch in embodiment one;

[0022] Figure 4is a side view of the partial section view of Figure 3

[0023] Figure 5 is an A-A section view of Figure 3

[0024] Figure 6 is a B-B section view of Figure 4

[0025] Figure 7 is a perspective view of the pressing strip

[0026] Figure 8 is a schematic diagram of the use state of the track fastener system for the maintenance trench of the utility model in example two

[0027] Figure 9 is a perspective view of the track fastener system for the maintenance trench of the utility model in example two

[0028] Figure 10 is a physical diagram of the track fastener system for the maintenance trench of the utility model

[0029] In the figure: 01. maintenance trench, 02. track, 1. base plate, 11. flat plate, 12. vertical plate, 121. through hole, 211. fastening seat, 2111. limiting groove, 21111. pressing bean, 21112. arc-shaped edge, 2112. sliding groove, 21121. blocking strip, 2113. clamping block, 212. T-shaped bolt, 213. pressing strip, 214. pressing nut, 215. pressing strip, 2151. square groove, 216. pressing flat pad, 22. pressing block, 221. pressing groove, 3. connecting bolt, 4. expansion sleeve, 5. flat pad, 6. elastic pad, 7. elastic pad layer. DETAILED DESCRIPTION

[0030] Example one: refer to Figures 1-7 ​​​The utility model provides a track fastener system for maintenance ditch, including L -shaped backing plate 1, buckle joint mechanism, connecting bolt 3, expansion sleeve 4, backing plate 1 includes flat plate 11 and riser 12, flat plate 11 is with the both sides ground of maintenance ditch 01 abuts, riser 12 is with the end fixed connection of flat plate 11, and the side wall of maintenance ditch 01 abuts, flat plate 11 and riser 12 all are connected with maintenance ditch 01 through connecting bolt 3, expansion sleeve 4, first use percussion drill to drill out connecting hole on the both sides ground of maintenance ditch 01, the side wall of maintenance ditch 01 corresponding position, then expansion sleeve 4 is inserted into connecting hole, connecting bolt 3 is screwed with expansion sleeve 4 after penetrating backing plate 1, connecting bolt 3 makes expansion sleeve 4 expand, and the connecting hole is filled with expansion, realizes the junction of backing plate 1 and maintenance ditch 01, wherein, the connecting bolt 3 of flat plate 11, expansion sleeve 4 can provide horizontal restraint for fastener system, guaranteeing that track 02 is in proper track pitch, the connecting bolt 3 of riser 12, expansion sleeve 4 can provide vertical restraint for fastener system, improve the impact resistance of backing plate 1, so as to prevent backing plate 1 from being embedded into the both sides ground of maintenance ditch 01 and increase the replacement difficulty of fastener system, buckle joint mechanism is set up on flat plate 11 and is buckled with track 02, and buckle joint mechanism is used to fixedly connect guide rail.

[0031] Compared with the prior art, the backing plate 1 of the utility model is L-shaped, and the riser 12 is connected with the connecting bolt 3 and the expansion sleeve 4 to improve the impact resistance of the backing plate 1 and prevent the backing plate 1 from being embedded into the both sides ground of the maintenance ditch 01 to increase the replacement difficulty of the fastener system.

[0032] The track fastener system for maintenance ditch further includes a flat pad 5 and an elastic pad 6, the flat pad 5 and the elastic pad 6 are sleeved on the connecting bolt 3, the flat pad 5 abuts against the backing plate 1 to increase the connection area with the backing plate 1 and improve the connection stability of the connecting bolt 3 and the backing plate 1, and the elastic pad 6 is arranged between the bolt head of the connecting bolt 3 and the flat pad 5 to improve the impact resistance of the connecting bolt 3 and ensure the connection stability of the connecting bolt 3.

[0033] The buckle mechanism comprises a buckle assembly; the buckle assembly comprises a buckle seat 211 integrated with the flat plate 11, a T-shaped bolt 212 vertically upwardly arranged, a buckle strip 213, a buckle pressing nut 214, and a buckle pressing strip 215; the buckle seat 211 is provided with a buckle pressing strip 215 on one lateral side, which abuts against the buckle pressing strip 215 to horizontally constrain the buckle pressing strip 215; the buckle seat 211 is provided with a limiting groove 2111 on the other lateral side, which matches the buckle strip 213 to horizontally constrain the buckle strip 213; the buckle seat 211 is provided with a sliding groove 2112 longitudinally penetrating and slidingly matched with the bolt head of the T-shaped bolt 212; the bolt head of the T-shaped bolt 212 is slid into the sliding groove 2112 for assembly; the buckle pressing strip 215 abuts against the lower wing plate of the track 02 to horizontally and vertically constrain the lower wing plate of the track 02; one end of the buckle strip 213 abuts against the limiting groove 2111 to be horizontally and vertically limited; the other end of the buckle strip 213 abuts against the buckle pressing strip 215 to vertically limit the buckle pressing strip 215; the buckle pressing nut 214 is threadedly matched with the T-shaped bolt 212 to realize stable connection; the buckle pressing nut 214 abuts against the middle part of the buckle strip 213 to sufficiently limit the buckle strip 213, and then the buckle pressing strip 215 is used to sufficiently limit the lower wing plate of the track 02.

[0034] The limiting groove 2111 is provided with a buckle pressing bean 21111 on one side, which matches the buckle strip 213; and the other side is provided with an arc-shaped edge 21112 upwardly arranged; the buckle pressing bean 21111 and the arc-shaped edge 21112 are matched with each other to sufficiently horizontally constrain the buckle strip 213.

[0035] The sliding groove 2112 is provided with a blocking strip 21121 at the slot opening facing the limiting groove 2111; the bolt head of the T-shaped bolt 212 can enter the sliding groove 2112 from below the blocking strip 21121; then, after the T-shaped bolt 212 is threadedly matched with the buckle pressing nut 214, the blocking strip 21121 can prevent the T-shaped bolt 212 from being pulled out of the sliding groove 2112.

[0036] The buckle assembly further comprises a buckle pressing flat pad 216; the buckle pressing flat pad 216 is arranged between the buckle strip 213 and the buckle pressing nut 214; the buckle pressing flat pad 216 can ensure that the buckle pressing nut 214 presses the middle part of the buckle strip 213.

[0037] The buckle seat 211 is symmetrically provided with clamping blocks 2113 on the side abutting against the buckle pressing strip 215; the buckle pressing strip 215 is arranged between the clamping blocks 2113; the clamping blocks 2113 horizontally limit the buckle pressing strip 215 to prevent the buckle pressing strip 215 from being horizontally separated.

[0038] The buckle strip 213 is provided with a square groove 2151 corresponding to the sliding groove 2112 in the middle part of the edge; when the buckle system is replaced, the buckle pressing strip 215 can be replaced by penetrating the sliding groove 2112 and acting on the square groove 2151, thereby improving the replacement efficiency.

[0039] The buckle mechanism further comprises a buckle pressing block 22 integrated with the flat plate 11; the buckle pressing block 22 and the buckle assembly are arranged on both sides of the lower wing plate of the track 02; the buckle pressing block 22 is provided with a buckle pressing groove 221 matched with the edge of the lower wing plate of the track 02; the buckle pressing block 22 realizes the buckling of the lower wing plate of the track 02 through the buckle pressing groove 221; compared with the buckle assembly, the buckle pressing block 22 has a simple structure and is easy to manufacture.

[0040] The buckle pressing block 22 is arranged close to one side of the vertical plate 12; when the track 02 is installed, the track 02 can be hoisted between the buckle pressing block 22 and the buckle seat 211, then the track 02 is pushed horizontally to make the track 02 matched with the buckle pressing groove 221, and then the buckle assembly is used to fix the track 02; in this way, the track 02 can be replaced by the maintenance personnel on one side of the track 02, and the replacement process is safer.

[0041] The vertical plate 12 is uniformly provided with a plurality of through holes 121 matched with the connecting bolts 3 to improve the vertical impact resistance of the fastener system; in the embodiment, there are five through holes 121; four of the five through holes 121 are arranged in a rectangular shape, and one through hole 121 is arranged at the center of the rectangle.

[0042] The track fastener system for the maintenance trench further comprises an elastic cushion layer 7 matched with the lower wing plate of the track 02; the elastic cushion layer 7 is laid under the track 02 and connected with the lower wing plate of the track 02 and the cushion plate 1; the elastic cushion layer 7 can reduce the hard contact between the track 02, the cushion plate 1 and the ground on both sides of the maintenance trench 01, and buffer the impact caused by the locomotive.

[0043] The working principle of the embodiment is as follows: the connecting bolts 3 and the expansion sleeve 4 connected with the flat plate 11 can provide horizontal constraint for the fastener system to ensure that the track 02 is in a suitable track gauge; the connecting bolts 3 and the expansion sleeve 4 connected with the vertical plate 12 can provide vertical constraint for the fastener system to improve the impact resistance of the cushion plate 1, so as to prevent the cushion plate 1 from being embedded into the ground on both sides of the maintenance trench 01 to increase the difficulty of replacing the fastener system; the buckle pressing block 22 realizes the buckling of the lower wing plate of the track 02 through the buckle pressing groove 221; compared with the buckle assembly, the buckle pressing block 22 has a simple structure and is easy to manufacture. The buckle pressing block 22 is arranged close to one side of the vertical plate 12; when the track 02 is installed, the track 02 can be hoisted between the buckle pressing block 22 and the buckle seat 211, then the track 02 is pushed horizontally to make the track 02 matched with the buckle pressing groove 221, and then the buckle assembly is used to fix the track 02; in this way, the track 02 can be replaced by the maintenance personnel on one side of the track 02, and the replacement process is safer.

[0044] Embodiment two: see Figures 8-9 Embodiment two is basically the same as embodiment one, and the same parts will not be described again. The difference is that the buckle mechanism has two buckle assemblies; the two buckle assemblies are symmetrically arranged on both sides of the track 02; in this way, the operation of pushing the track 02 horizontally can be reduced, the operation steps can be reduced, and the operation efficiency can be improved.

Claims

1. A track fastener system for access trenches, characterized in that The utility model provides a kind of L-shaped backing plate, fastening mechanism, connecting bolt, expansion sleeve;Backing plate includes flat plate and vertical plate;Flat plate is in contact with the ground on both sides of the maintenance trench;Vertical plate is fixed with the end of flat plate, and is in contact with the side wall of maintenance trench;Flat plate and vertical plate are connected with maintenance trench by connecting bolt and expansion sleeve;Fastener mechanism is set on flat plate, and is buckled with track.

2. The track fastener system for access pits according to claim 1, characterized in that: It also includes flat pad and elastic pad;Flat pad and elastic pad are sleeved on connecting bolt;Flat pad is in contact with backing plate;Elastic pad is arranged between bolt head of connecting bolt and flat pad.

3. A track fastener system for access pits according to claim 1 or 2, characterized in that: The fastening mechanism includes a fastening assembly;The fastening assembly includes a fastening seat integrated with the flat plate, a T-shaped bolt arranged vertically upward, a clamping strip, a clamping nut and a clamping strip;The fastening seat is provided with a clamping strip on one side of the horizontal side and a limiting groove matched with the clamping strip on the other side;The middle part of the fastening seat is provided with a sliding groove vertically penetrating and slidingly matched with the bolt head of the T-shaped bolt;The clamping strip is in contact with the lower wing plate of the track;One end of the clamping strip is in contact with the limiting groove, and the other end is in contact with the clamping strip;The clamping nut is threadedly connected with the T-shaped bolt and is in contact with the middle part of the clamping strip.

4. The track fastener system for access pits according to claim 3, characterized in that: The limiting groove is provided with a clamping nut matched with the clamping strip on one side and an arc-shaped edge upward on the other side.

5. The track fastener system for access pits according to claim 4, characterized in that: The sliding groove is provided with a blocking strip towards the slot of the limiting groove.

6. The track fastener system for access pits according to claim 3, characterized in that: The fastening assembly further includes a clamping flat pad arranged between the clamping strip and the clamping nut.

7. The track fastener system for access pits according to claim 3, characterized in that: The side of the fastening seat in contact with the clamping strip is symmetrically provided with a clamping block;The clamping strip is arranged between the clamping blocks.

8. The track fastener system for access pits according to claim 3, characterized in that: The middle part of the edge of the clamping strip is provided with a square groove matched with the sliding groove.

9. The track fastener system for access pits according to claim 3, characterized in that: The fastening mechanism further includes a clamping block integrated with the flat plate;The clamping block and the fastening assembly are arranged on both sides of the lower wing plate of the track;The clamping block is provided with a clamping groove matched with the edge of the lower wing plate of the track.

10. The track fastener system for access pits according to claim 3, characterized in that: The fastening mechanism has two fastening assemblies;The two fastening assemblies are symmetrically arranged on both sides of the track.

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