Method for cross-line replacement and laying of long steel rail by utilizing stepped side laying guide bracket

Abstract

The invention belongs to the technical field of long steel rail overline laying construction, and particularly relates to a method for overline replacement laying of a long steel rail through a stepped side laying guide support. Marshalling an operation train according to the sequence of the diesel locomotive power unit, the first step type side laying guide bracket, the first track laying unit, the long-rail train, the second track laying unit and the second step type side laying guide bracket; the operation train moves on an adjacent line of a rail changing line, the internal combustion locomotive power set is used for pulling the operation train, the first stepped side laying guide support and the first rail laying unit are used for recycling old steel rails of the rail changing line, and the second stepped side laying guide support and the second rail laying unit are used for laying new steel rails of the rail changing line. Through special marshalling of the operation train, the operation train has the effect of laying and collecting at the same time, and track laying, track changing and track collecting are conducted synchronously in a three-in-one mode.

Description

Technical Field

[0001] The invention belongs to the technical field of long rail cross-line laying construction, and in particular relates to a method for cross-line replacement laying of long rails by utilizing a stepped side-laying guide bracket. Background Art

[0002] With the rapid development of my country's high-speed railways, newly built railways have gradually reached saturation, and operating railways will gradually enter the stage of inspection, maintenance and overhaul. The present invention aims to solve the problems of tight construction time, large construction volume and high construction difficulty in the upcoming large-scale overhaul of operating railways, especially the problem that long rails cannot be replaced continuously. Summary of the invention

[0003] The invention aims to solve the problems of low efficiency and discontinuous construction in the traditional construction method during the maintenance of operating railways.

[0004] The present invention provides the following technical solution: a method for replacing long rails across a line by using a stepped side-laying guide bracket, wherein an operation train is formed in the order of a diesel locomotive power unit, a first stepped side-laying guide bracket, a first track-laying unit, a long-rail train, a second track-laying unit, and a second stepped side-laying guide bracket;

[0005] The working train moves on the adjacent line of the track-changing line, the diesel locomotive power group is used to pull the working train, the first step-type side-laying guide bracket and the first track-laying unit are used to recycle the old rails of the track-changing line, and the second step-type side-laying guide bracket and the second track-laying unit are used to lay new rails of the track-changing line;

[0006] An old rail storage area and a new rail storage area are provided on the long rail train. The old rails recovered by the first stepped side-laying guide bracket and the first track-laying unit are sent to the old rail storage area on the long rail train, and the second track-laying unit and the second stepped side-laying guide bracket draw new rails from the new rail storage area on the long rail train for laying.

[0007] Further, the following steps are included:

[0008] S1: Remove electrical equipment that affects construction, disconnect the overhead wire and connect it to the grid, and short-circuit the old rails of the track replacement line with copper wires;

[0009] S2: moving the counterweight block, and moving the counterweight blocks on the first stepped side paving guide bracket and the second stepped side paving guide bracket to a side away from the old rail;

[0010] S3: The support beams of the first stepped side-laying guide support and the second stepped side-laying guide support are rotated 90 degrees to achieve the purpose of replacing rails on the adjacent line; at the same time, the old rails are cut into fractures; the spikes of the old rails in the section to be replaced are removed, and the spring bars and gauge blocks are peeled off;

[0011] S4: Alignment of the operating train: First, the operating train is operated until the front end of the first stepped side-laying guide bracket coincides with the recovery end of the old rail, and the old rail is moved to the first stepped side-laying guide bracket by means of a hoist and manual guiding; the old rail is recovered to the old rail storage area of ​​the long rail train by the operation of the operating train and the reaction force of the fastener;

[0012] S5: When the operating train runs to the point where the tail end of the second stepped side-laying guide bracket coincides with the recovery end of the old rail, the train stops and aligns, lays the new rail to the recovery end of the old rail through the second stepped side-laying guide bracket, and locks the fastener to fix the new rail so as to achieve the purpose of side-laying;

[0013] S6: As the operating train runs, the old rails are recycled onto the long-rail train, and new rails are laid in the area to be laid.

[0014] Furthermore, the upper layer of the long-track train is an old-track storage area, and the lower layer is a new-track storage area.

[0015] Furthermore, the long rail train includes a car plate, on which rail storage racks are arranged at intervals along the length direction, and the rail storage racks are provided with upper and lower layers of support rods, the upper layer of support rods are connected to form an old rail storage area, and the lower layer of support rods are connected to form a new rail storage area;

[0016] A slide rail parallel to the length direction of the vehicle plate is installed on the top of the rail storage rack, and an old rail guide frame is slidably mounted on the slide rail. The driving mechanism on the old rail guide frame drives it to move on the slide rail, and the old rail guide frame is provided with a slide groove parallel to the support rod. Two lifting claws slidingly matched with the slide groove are arranged at the bottom of the rail storage rack, and the lifting claws are used to grab the old rails. The old rails fed into the first stepped side laying guide bracket and the first track laying unit are grabbed by the lifting claws and dragged by the old rail guide frame to be laid in the old rail storage area.

[0017] Furthermore, the lifting claw includes a vertical electric push rod and a rail claw hook; the cylinder of the vertical electric push rod is slidably matched with the slide groove of the rail storage rack, and the rail claw hook is installed at the end of the rod body of the vertical electric push rod.

[0018] Furthermore, rollers and partitions are distributed on the support rods of the rail storage rack, and a roller and the partitions on both sides form a rail clamping position.

[0019] Furthermore, a transverse electric push rod is connected between the cylinder of the vertical electric push rod of the lifting clamp and the rail storage rack, and the transverse electric push rod pushes the vertical electric push rod to move transversely in the slide groove.

[0020] Furthermore, the slide rail is a closed elliptical ring, and two old rail guide frames are arranged on the slide rail, and the two old rail guide frames run alternately.

[0021] Furthermore, the cross-section of the slide rail is rectangular, and trolleys cooperating with the slide rail are installed at both ends of the old rail guide frame. The trolley includes a driving wheel, a tensioning wheel, a driven wheel, a side support wheel and a car body. The car body is fixedly connected to the old rail guide frame, the driving wheel and the driven wheel are installed on the car body, the driving wheel and the driven wheel are in contact with the top surface of the slide rail, the tensioning wheel is connected to the car body through a spring sleeve, the tensioning wheel cooperates with the driving wheel and the driven wheel on the bottom surface of the slide rail to clamp the slide rail, the side support wheels are installed on the car body, the side support wheels are in contact with the inner side surface of the slide rail, and the outer side surface of the slide rail is connected to the mounting frame.

[0022] Furthermore, the driving wheel is a rubber wheel.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] The present invention provides a method for replacing long rails across the line by using a stepped side-laying guide bracket. By specially marshaling the operating train, the operating train can achieve the effect of laying and collecting rails at the same time. The "three-in-one" construction of track laying, rail replacement and rail collection is carried out simultaneously; track laying and rail collection are carried out simultaneously without interfering with each other; track laying and rail welding are carried out simultaneously without interfering with each other. Traditional operating line construction generally adopts CPG500 track laying units, which can only replace rails on the line, which seriously affects the synchronous progress of rail welding operations. The stepped side-laying guide bracket on which the invention relies can replace rails on the line on the adjacent line without affecting the progress of rail welding construction on the line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is the front view of the long-track train;

[0027] Figure 3 This is a schematic diagram of the coordination between the lifting gripper and the horizontal electric push rod;

[0028] Figure 4 It is a side view of a long-track train;

[0029] Figure 5 This is a schematic diagram of the coordination between the trolley and the slide rail.

[0030] In the figure: 1- diesel locomotive power unit; 2- first stepped side-laying guide bracket; 3- first track-laying unit; 4- long rail train; 4.1- old rail storage area; 4.2- new rail storage area; 4.3- car plate; 4.4- rail storage rack; 4.5- slide rail; 4.6- old rail guide rack; 4.7- slide trough; 4.8- lifting claw; 4.9- roller; 4.10- partition; 4.11- transverse electric push rod; 4.12- trolley; 4.12.1- driving wheel; 4.12.2- tensioning wheel; 4.12.3- driven wheel; 4.12.4- side support wheel; 4.12.5- car shell; 4.12.6- spring sleeve; 4.13- mounting frame; 5- second track-laying unit; 6- second stepped side-laying guide bracket; 7- old rail; 8- new rail. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] like Figure 1 , Figure 2 As shown: a method for replacing long rails across a track by using a stepped side-laying guide bracket, wherein an operation train is assembled in the order of a diesel locomotive power group 1, a first stepped side-laying guide bracket 2, a first track-laying machine group 3, a long rail train 4, a second track-laying machine group 5, and a second stepped side-laying guide bracket 6; the operation train moves on the adjacent line of the track-changing line, the diesel locomotive power group 1 is used to pull the operation train, the first stepped side-laying guide bracket 2 and the first track-laying machine group 3 are used to recycle the old rails 7 of the track-changing line, and the second stepped side-laying guide bracket 6 is used to recycle the old rails 7 of the track-changing line. The ladder-type side-laying guide bracket 5 and the second track-laying unit 5 are used for laying new rails 8 on the track-changing line; an old rail storage area 4.1 and a new rail storage area 4.2 are provided on the long-rail train 4; the old rails 7 recovered by the first ladder-type side-laying guide bracket 2 and the first track-laying unit 3 are sent to the old rail storage area 4.1 on the long-rail train 4; the second track-laying unit 5 and the second ladder-type side-laying guide bracket 6 extract the new rails 8 from the new rail storage area 4.2 on the long-rail train 4 for laying, thereby completing the construction task of collecting and laying at the same time.

[0033] Diesel locomotive power unit 1 provides power for all units and uses a diesel locomotive. Electric locomotives are not considered because the construction environment is close to the overhead contact network and the construction work is unsafe. During the construction period, the overhead contact network needs to be disconnected and only diesel locomotives can be used.

[0034] The specific steps include:

[0035] S1: Submit the construction work plan and check the construction plan with the engineering, electrical, mechanical, and station departments; contact the station liaison officer and wait for the dispatching order. After the dispatching order is issued, the operation train will run to the construction site;

[0036] S2: Remove the electrical equipment that affects the construction, disconnect the overhead wire and connect it to the grid, and short-circuit the old rails 7 of the track replacement line with copper wires;

[0037] S3: Move the counterweight block to move the counterweight blocks on the first stepped side paving guide bracket 2 and the second stepped side paving guide bracket 6 to a side away from the old rail 7;

[0038] S4: The support beams of the first stepped side-laying guide support 2 and the second stepped side-laying guide support 6 are turned 90 degrees to achieve the purpose of replacing rails on the adjacent line; at the same time, after the section to be replaced is confirmed by the on-site technicians, the old rails 7 are cut into fractures, and the length of a single rail is 500m; the spikes of the old rails 7 in the section to be replaced are removed, and the spring bars and gauge blocks are peeled off;

[0039] S5: Alignment of the working train: First, the working train is operated until the front end of the first stepped side-laying guide bracket 2 coincides with the recovery end of the old rail 7, and the old rail 7 is moved into the first stepped side-laying guide bracket 2 by means of a hoist and manual guiding; the old rail 7 is recovered to the old rail storage area 4.1 of the long rail train 4 by the operation of the working train and the reaction force of the fastener;

[0040] S6: When the working train runs to the point where the tail end of the second stepped side-laying guide bracket 6 coincides with the recovery end of the old rail 7, the train stops and aligns, and the new rail 8 is laid to the recovery end of the old rail 7 through the second stepped side-laying guide bracket 6, and the new rail 8 is fixed with a locking fastener to achieve the purpose of side-laying;

[0041] S7: As the working train runs, the old rails 7 are recovered onto the long rail train 4, and new rails 8 are laid to the area to be laid.

[0042] like Figure 2 , Figure 4 As shown, the upper layer of the long rail train 4 is the old rail storage area 4.1, and the lower layer is the new rail storage area 4.2. The long rail train 4 includes a car plate 4.3, on which rail storage racks 4.4 are arranged at intervals along the length direction. The rail storage racks 4.4 are provided with upper and lower layers of support rods, the upper support rods are connected to form the old rail storage area 4.1, and the lower support rods are connected to form the new rail storage area 4.2.

[0043] The top of the rail storage rack 4.4 is provided with a slide rail 4.5 parallel to the length direction of the vehicle plate 4.3, and an old rail guide frame 4.6 is slidably mounted on the slide rail 4.5. The driving mechanism on the old rail guide frame 4.6 drives it to move on the slide rail 4.5. The old rail guide frame 4.6 is provided with a slide groove 4.7 parallel to the support rod. Two lifting claws 4.8 slidingly matched with the slide groove 4.7 are provided below the rail storage rack 4.4. The lifting claws 4.8 are used to grab the old rails 7. The old rails 7 fed by the first stepped side laying guide bracket 2 and the first track laying unit 3 are grabbed by the lifting claws 4.8 and then dragged by the old rail guide frame 4.6 to be laid in the old rail storage area 4.1. The lifting claws 4.8 change the position of the stored rails when sliding in the slide groove 4.7.

[0044] The lifting claw 4.8 includes a vertical electric push rod and a rail claw hook; the cylinder of the vertical electric push rod is slidably matched with the slide groove 4.7 of the rail storage rack 4.4, and the rail claw hook is installed at the end of the rod body of the vertical electric push rod. The vertical electric push rod drives the rail claw hook to move up and down to lift or put down the rail. The rail claw hook adopts a scissor-fork structure. When the vertical electric push rod applies force upward, the rail claw hook clamps, and when the vertical electric push rod moves downward, the rail claw hook releases. The rail claw hook is a purchased finished product.

[0045] Rollers 4.9 and partitions 4.10 are distributed on the support rods of the rail storage rack 4.4. One roller 4.9 and the partitions 4.10 on both sides form a rail clamping position; the rails are in rolling contact with the rollers 4.9 to reduce resistance during movement.

[0046] like Figure 3 As shown: a transverse electric push rod 4.11 is connected between the cylinder of the vertical electric push rod of the lifting clamp 4.8 and the rail storage rack 4.4, and the transverse electric push rod 4.11 pushes the vertical electric push rod 4.8.1 to move horizontally in the slide 4.7; the transverse electric push rods 4.11 connected to the two lifting clamps 4.8 are staggered, so that the stroke of a single lifting clamp 4.8 can reach half the length of the slide 4.7.

[0047] like Figure 2 , Figure 4 , Figure 5 As shown, the slide rail 4.5 is a closed elliptical ring, and there are two old rail guide frames 4.6 on the slide rail 4.5, and the two old rail guide frames 4.6 run alternately; when one old rail guide frame 4.6 drags the old rail 7, the other old rail guide frame 4.6 returns, realizing uninterrupted operation.

[0048] The cross section of the slide rail 4.5 is rectangular. Both ends of the old rail guide frame 4.6 are equipped with a trolley 4.12 that cooperates with the slide rail 4.5. The trolley 4.12 includes a driving wheel 4.12.1, a tensioning wheel 4.12.2, a driven wheel 4.12.3, a side support wheel 4.12.4 and a car body 4.12.5. The car body 4.12.5 is fixedly connected to the old rail guide frame 4.6. The driving wheel 4.12.1 and the driven wheel 4.12.3 are installed on the car body 4.12.5. The driving wheel 4.12.1 is driven by a reduction motor in the car body 4.12.5. The driving wheel 4.12.1 and the driven wheel 4.12.3 are in contact with the top surface of the slide rail 4.5. The tensioning wheel 4.12.2 is connected to the car body 4.12.5 by a spring sleeve 4. .12.6 is connected to the car body 4.12.5, the tensioning wheel 4.12.2 cooperates with the driving wheel 4.12.1 and the driven wheel 4.12.3 on the bottom surface of the slide rail 4.5 to clamp the slide rail 4.5, where the slide rail 4.5 turns, the spring sleeve 4.12.6 is stretched, the driving wheel 4.12.1, the tensioning wheel 4.12.2, and the driven wheel 4.12.3 are always in contact with the slide rail 4.5, the side support wheel 4.12.4 is installed on the car body 4.12.5, the side support wheel 4.12.4 is in contact with the inner side of the slide rail 4.5, the side support wheel 4.12.4 prevents the trolley 4.12 from lateral displacement and falling off the slide rail 4.5, and the outer side of the slide rail 4.5 is connected to the mounting frame 4.13.

[0049] The driving wheel 4.12.1 is a rubber wheel, which increases the friction between the driving wheel 4.12.1 and the slide rail 4.5 to prevent slipping.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for replacing long rails across a line using a stepped side-laying guide bracket, characterized in that: A train is assembled in the order of a diesel locomotive power unit (1), a first stepped side-laying guide bracket (2), a first track-laying unit (3), a long-track train (4), a second track-laying unit (5), and a second stepped side-laying guide bracket (6); The working train moves on the adjacent line of the track-changing line, the diesel locomotive power group (1) is used to pull the working train, the first stepped side-laying guide bracket (2) and the first track-laying unit (3) are used to recover the old rails (7) of the track-changing line, and the second stepped side-laying guide bracket (5) and the second track-laying unit (5) are used to lay new rails (8) of the track-changing line; An old rail storage area (4.1) and a new rail storage area (4.2) are provided on a long rail train (4); old rails (7) recovered by a first stepped side-laying guide bracket (2) and a first track-laying unit (3) are sent into the old rail storage area (4.1) on the long rail train (4); and a second track-laying unit (5) and a second stepped side-laying guide bracket (6) extract new rails (8) from the new rail storage area (4.2) on the long rail train (4) for laying.

2. The method for replacing long rails across the line using a stepped side-laying guide bracket according to claim 1 is characterized in that: The following steps are involved: S1: Remove electrical equipment that affects construction, disconnect the overhead wire and connect it to the grid, and short-circuit the old rails (7) of the track replacement line with copper wires; S2: moving the counterweight blocks to move the counterweight blocks on the first stepped side paving guide bracket (2) and the second stepped side paving guide bracket (6) to a side away from the old rail (7); S3: The support crossbeams of the first stepped side-laying guide support (2) and the second stepped side-laying guide support (6) are turned by 90 degrees to achieve the purpose of replacing rails on the adjacent line; at the same time, the old rails (7) are cut into fractures; the spikes of the old rails (7) in the section to be replaced are removed, and the spring bars and gauge blocks are peeled off; S4: Alignment of the operating train: firstly, the operating train is operated until the front end of the first stepped side-laying guide bracket (2) coincides with the recovery end of the old rail (7), and the old rail (7) is moved into the first stepped side-laying guide bracket (2) by means of a hoist and manual guiding; the old rail (7) is recovered to the old rail storage area (4.1) of the long rail train (4) by the operation of the operating train and the reaction force of the fastener; S5: When the operating train runs to the point where the tail end of the second stepped side-laying guide bracket (6) coincides with the recovery end of the old rail (7), the train stops and aligns, and a new rail (8) is laid to the recovery end of the old rail (7) through the second stepped side-laying guide bracket (6), and the new rail (8) is fixed with a locking fastener to achieve the purpose of side-laying; S6: As the operating train runs, the old rails (7) are recovered onto the long rail train (4), and new rails (8) are laid to the area to be laid.

3. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 2 is characterized in that: The upper layer of the long rail train (4) is an old rail storage area (4.1), and the lower layer is a new rail storage area (4.2).

4. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 3 is characterized in that: The long rail train (4) comprises a car plate (4.3), on which rail storage racks (4.4) are arranged at intervals along the length direction, and the rail storage racks (4.4) are provided with upper and lower layers of support rods, the upper layer of support rods are connected to form an old rail storage area (4.1), and the lower layer of support rods are connected to form a new rail storage area (4.2); A slide rail (4.5) parallel to the length direction of the vehicle plate (4.3) is installed on the top of the rail storage rack (4.4); an old rail guide rack (4.6) is slidably mounted on the slide rail (4.5); a driving mechanism on the old rail guide rack (4.6) drives it to move on the slide rail (4.5); a slide groove (4.7) parallel to the support rod is arranged on the old rail guide rack (4.6); two lifting claws (4.8) slidably matched with the slide groove (4.7) are arranged below the rail storage rack (4.4); the lifting claws (4.8) are used to grab the old rail (7); the old rail (7) fed by the first stepped side laying guide bracket (2) and the first track laying unit (3) is grabbed by the lifting claws (4.8) and then dragged by the old rail guide rack (4.6) to be laid in the old rail storage area (4.1).

5. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 4 is characterized in that: The lifting clamp (4.8) comprises a vertical electric push rod and a rail claw hook; the cylinder of the vertical electric push rod is slidably matched with the slide groove (4.7) of the rail storage rack (4.4), and the rail claw hook is installed at the end of the rod body of the vertical electric push rod.

6. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 4 is characterized in that: Rollers (4.9) and partitions (4.10) are distributed on the support rods of the rail storage rack (4.4); a roller (4.9) and the partitions (4.10) on both sides form a rail clamping position.

7. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 5, characterized in that: A transverse electric push rod (4.11) is connected between the cylinder of the vertical electric push rod of the lifting clamp (4.8) and the rail storage rack (4.4), and the transverse electric push rod (4.11) pushes the vertical electric push rod (4.8.1) to move transversely in the slide groove (4.7).

8. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 4 is characterized in that: The slide rail (4.5) is a closed elliptical ring. Two old rail guide frames (4.6) are arranged on the slide rail (4.5), and the two old rail guide frames (4.6) run alternately.

9. The method for replacing long rails across the line by using a stepped side-laying guide bracket according to claim 8, characterized in that: The cross section of the slide rail (4.5) is rectangular. Both ends of the old rail guide frame (4.6) are equipped with a trolley (4.12) that matches the slide rail (4.5). The trolley (4.12) includes a driving wheel (4.12.1), a tensioning wheel (4.12.2), a driven wheel (4.12.3), a side support wheel (4.12.4) and a car shell (4.12.5). The car shell (4.12.5) is fixedly connected to the old rail guide frame (4.6). The driving wheel (4.12.1) and the driven wheel (4.12.3) are installed on the car shell (4.12.5). The driving wheel (4.12.1) The driven wheel (4.12.3) contacts the top surface of the slide rail (4.5), the tension wheel (4.12.2) is connected to the vehicle shell (4.12.5) through a spring sleeve (4.12.6), the tension wheel (4.12.2) cooperates with the driving wheel (4.12.1) and the driven wheel (4.12.3) on the bottom surface of the slide rail (4.5) to clamp the slide rail (4.5), the side support wheel (4.12.4) is installed on the vehicle shell (4.12.5), the side support wheel (4.12.4) contacts the inner side surface of the slide rail (4.5), and the outer side surface of the slide rail (4.5) is connected to the mounting frame (4.13).

10. A method for replacing long rails across a line using a stepped side-laying guide bracket according to claim 9, characterized in that: The driving wheel (4.12.1) is a rubber wheel.

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