A ballast replacement train set for ballast replacement operations during turnout replacement

Abstract

The present invention discloses a ballast replacement train set for ballast replacement operation during turnout replacement, which includes a ballast replacement vehicle, a rail-road dual-purpose ballast conveyor vehicle, a track ballast conveyor vehicle, a belt material transport vehicle and a ballast replenishment vehicle that are connected in sequence. The ballast replacement vehicle, the rail-road dual-purpose ballast conveyor vehicle, the track ballast conveyor vehicle and the belt material transport vehicle are grouped to complete the excavation and bottom ballast backfilling operations of the ballast after the removal of the old turnout, and the ballast replenishment vehicle completes the ballast backfilling and shaping operations after the installation of the new turnout. The ballast replacement train set for ballast replacement operation during turnout replacement provided by the present invention reduces the reliance on manual labor, has high working efficiency, is safe and reliable, and can adapt to the ballast replacement operation after the removal of the old turnout during the turnout replacement process.

Description

Technical Field

[0001] The present invention relates to the technical field of railway engineering vehicles, and particularly relates to a ballast replacement vehicle group for ballast replacement operations during turnout replacement. Background Art

[0002] A turnout is a track connection device for realizing railway track conversion. It is one of the weak links in the track system. Its structure is complex, the laying and replacement are difficult, and the construction accuracy requirements are high. Only by ensuring the laying and replacement quality of the turnout can the design speed, comfort and safety requirements when the train passes be guaranteed. A good ballast replacement operation construction plan is an important link to ensure the construction efficiency, construction quality, operation safety and normal use of the turnout during turnout replacement construction.

[0003] After investigation, the existing ballast replacement operations adopt pure manual or manual plus excavator methods, with low construction efficiency, poor mechanization degree, high safety risks, and at the same time, it is also necessary to occupy the adjacent line or additional maintenance windows. It is an urgent need of the track maintenance department for a long time to be able to rely on professional ballast replacement construction equipment, adopt efficient, safe and reliable construction methods, reduce the work intensity, reduce the dependence on manual labor, and improve the construction efficiency and quality. And the efficiency of the ballast excavation device is an important factor affecting the ballast replacement operation efficiency.

[0004] In view of this, it is necessary to provide a ballast replacement vehicle group for ballast replacement operations during turnout replacement to solve the above technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a ballast replacement vehicle group for ballast replacement operations during turnout replacement with high working efficiency.

[0006] To solve the above problems, the technical solution of the present invention is as follows:

[0007] A ballast replacement vehicle group for ballast replacement operations during turnout replacement includes a ballast replacement vehicle, a road-rail dual-purpose ballast conveyor, a track ballast conveyor, a belt material transporter and a ballast replenishment vehicle connected in sequence. The ballast replacement vehicle, the road-rail dual-purpose ballast conveyor, the track ballast conveyor and the belt material transporter are grouped to complete the excavation and bottom ballast backfilling operations of the ballast after the removal of the old turnout, and the ballast replenishment vehicle completes the ballast backfilling and shaping operations after the installation of the new turnout.

[0008] Further, the ballast replacement vehicle includes a first frame, first three-axle powered bogies for vehicle running provided at the front and rear ends of the lower part of the first frame, a ballast excavation device provided at the front end of the upper part of the first frame, an equipment room provided at the rear end of the upper part of the first frame, two groups of first crawler running devices provided between the ballast excavation device and the equipment room, a first old ballast conveyor belt and a first new ballast conveyor belt supported by the first frame, a transfer conveyor belt provided between the first old ballast conveyor belt and the ballast excavation device and supported by the first crawler running device for conveying the excavated old ballast to the first old ballast conveyor belt, a new ballast hopper provided on the first frame and connected to the first new ballast conveyor belt, and a backfill conveyor belt provided below the new ballast hopper for bottom ballast backfilling operation.

[0009] Further, the ballast excavation device includes a central slewing platform, a driver's cab provided on the central slewing platform, two working arms connected to the central slewing platform and arranged oppositely, a conveyor belt provided between the two working arms, a ballast excavation shovel connected to the other end of the working arm, and a ballast raking device hinged to the ballast excavation shovel. The working arm is telescopic and rotatable, and the conveyor belt telescopes synchronously with the working arm.

[0010] The ballast raking device includes a ballast raking drum, a first driving device for driving the ballast raking drum to rotate, a rotating shaft connected to the ballast excavation shovel, a connecting rod connecting the rotating shaft and the first driving device, and a hydraulic cylinder with one end connected to the ballast excavation shovel and the other end connected to the connecting rod.

[0011] When the hydraulic cylinder drives the ballast raking drum to rotate to below the ballast excavation shovel, it is used to rake the ballast forward, so that the ballast excavation device is in the foundation pit excavation state.

[0012] When the hydraulic cylinder drives the ballast raking drum to rotate to a position level with the ballast excavation shovel, it is used to loosen the compacted ballast in front, so that the ballast excavation device is in the ballast loosening state.

[0013] When the hydraulic cylinder drives the ballast raking drum to rotate above the ballast excavation shovel, the ballast raking drum stops rotating, and the ballast excavation shovel works independently. The working arm drives the ballast excavation shovel to transfer the ballast to the conveyor belt.

[0014] Further, the ballast excavation shovel includes a bucket, a spiral ballast extraction device provided in the bucket, and a second driving device for driving the spiral ballast extraction device to rotate.

[0015] The working arm includes a fixed arm connected to the central slewing platform, a telescopic arm hinged to the fixed arm, a working arm telescopic cylinder for driving the telescopic arm to extend or retract, and a rotating cylinder with one end connected to the fixed arm and the other end connected to the telescopic arm for driving the telescopic arm to rotate.

[0016] The conveyor belt includes a first conveyor belt and a second conveyor belt slidably connected to the first conveyor belt. The first conveyor belt includes a first frame, a driving roller, a rotary roller, and a tensioning roller provided on the first frame, a hydraulic motor for providing power to the driving roller, a first belt sequentially wound around the driving roller, the rotary roller, and the tensioning roller, and a return idler provided at the bottom of the frame.

[0017] The second conveyor belt includes a second frame, a steering roller provided on the second frame, a redirecting roller disposed opposite to the steering roller, a carrying idler provided on the second frame, a second belt wound around the steering roller and the redirecting roller, and a conveyor belt telescopic oil cylinder connecting the first frame and the second frame for pushing the second frame to expand and contract. The steering roller is rollingly connected to the first frame.

[0018] Further, the backfill conveyor belt includes a rotary center support frame and a third belt provided on the rotary center support frame. A leveling device is provided at the front end of the rotary center support frame. The leveling device includes a muck pushing plow and a muck pushing plow lifting oil cylinder connected to the muck pushing plow.

[0019] Further, the railway-highway ballast transport vehicle includes a second vehicle frame, a first non-powered two-axle bogie for vehicle running provided at the front and rear ends of the lower part of the second vehicle frame, a second old ballast conveyor belt provided on the second vehicle frame and connected to the first old ballast conveyor belt, a second new ballast conveyor belt provided on the second vehicle frame and connected to the first new ballast conveyor belt, and two groups of second crawler running devices installed on the second vehicle frame. The second old ballast conveyor belt is used to transport the excavated old ballast to the track ballast transport vehicle, the second new ballast conveyor belt is used to transport the new ballast transported by the track ballast transport vehicle to the ballast replacement vehicle, and the second crawler running device is used for vehicle running after the old turnout is removed.

[0020] Further, the track ballast transport vehicle includes a third vehicle frame, a second non-powered three-axle bogie and a second powered three-axle bogie provided at the lower part of the third vehicle frame, a first ballast storage hopper provided on the third vehicle frame for storing new ballast, a third old ballast conveyor belt provided above the first ballast storage hopper, and a third new ballast conveyor belt provided below the first ballast storage hopper. The third old ballast conveyor belt is used to transport the excavated old ballast to the belt-type material transport vehicle, and the third new ballast conveyor belt is used to transport the new ballast in the first ballast storage hopper to the railway-highway ballast transport vehicle.

[0021] Further, the ballast replenishment vehicle includes a fourth vehicle frame, a third non-powered three-axle bogie and a third powered three-axle bogie provided at the lower part of the fourth vehicle frame, a power compartment provided on the fourth vehicle frame, a ballast feeding belt provided above the power compartment, a second ballast storage hopper provided on the fourth vehicle frame, a ballast replenishment driver's cab and a braking compartment, a rail surface cleaning brush, a rough shaping plow, a ballast distributing hopper and a ballast feeding belt provided at the lower part of the fourth vehicle frame. The ballast distributing hopper and the ballast feeding belt are used to replenish new ballast in the second ballast storage hopper to the turnout section. The rail surface cleaning brush and the rough shaping plow are used for rough shaping of the ballast and cleaning of the rail surface after the ballast feeding belt unloads the ballast.

[0022] Further, the first crawler traveling device or the second crawler traveling device has the same structure and respectively includes a crawler assembly, a slewing device, a vertical leg assembly, a horizontal leg assembly and a slewing mounting and fixing seat. The vertical leg assembly and the horizontal leg assembly are telescopic and are used to realize the change of the support height and width of the crawler traveling device. The slewing device is used to control the traveling direction of the vehicle.

[0023] Further, an automatic identification control system is also included. The automatic identification control system controls the vertical leg assembly of the first crawler traveling device or the second crawler traveling device to adjust the support height according to the identified road condition information.

[0024] Compared with the prior art, the ballast replacement vehicle group for ballast replacement operation during turnout replacement provided by the present invention has the beneficial effects that:

[0025] The ballast replacement vehicle group for ballast replacement operation during turnout replacement provided by the present invention combines a ballast replacement vehicle, a rail-road dual-purpose ballast conveyor vehicle, a rail-mounted ballast conveyor vehicle, a belt-type material transport vehicle and a ballast replenishment vehicle, realizing the ballast replacement operation on this line without occupying the adjacent line and additional skylight points. The ballast replacement vehicle adapts to the width change of the turnout section through the telescopic rotation of the central slewing platform and the working arm, realizing the rapid collection of ballast; through the ballast scraping device, it can realize automatic foundation pit excavation and loosening of the slabbed ballast, realizing different operation functions; through the spiral ballast scraping device, it realizes the rapid transportation of ballast, preventing the ballast from piling up on the bucket and being able to adapt to high-efficiency excavation; through the new ballast hopper, the backfill conveyor belt and the leveling device, it adapts to the width change of the turnout section, realizing the rapid backfill and leveling of the bottom ballast; through the connected double-layer conveyor belt, it realizes the simultaneous excavation and bottom ballast backfill, improving the efficiency; through the crawler traveling device, it solves the traveling problem during the construction operation after the old turnout is removed. The ballast replacement vehicle group provided by the present invention has high working efficiency, is safe and reliable, and reduces the dependence on manual labor. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of a ballast replacement vehicle group for ballast replacement operations during turnout replacement provided by the present invention; Figure 2 is Figure 1 A schematic structural diagram of a ballast replacement vehicle in the ballast replacement vehicle group for ballast replacement operations during turnout replacement shown in;

[0028] Figure 3 is Figure 2 A schematic structural diagram of a ballast excavation device in the ballast replacement vehicle shown in;

[0029] Figure 4 is Figure 3 A schematic structural diagram of the ballast excavation device from another angle shown in;

[0030] Figure 5 is Figure 3 A schematic structural diagram of the ballast excavation device from yet another angle shown in;

[0031] Figure 6 is Figure 3 A schematic structural diagram of the working arm in the ballast excavation device shown in;

[0032] Figure 7 is Figure 3 A schematic structural diagram of the conveyor belt in the ballast excavation device shown in;

[0033] Figure 8 is Figure 3 A schematic structural diagram of the ballast shovel and ballast raking device in the ballast excavation device shown in;

[0034] Figure 9 is Figure 8 A schematic structural diagram of the ballast shovel and ballast raking device from another angle shown in;

[0035] Figure 10 is Figure 8 A schematic structural diagram of the ballast shovel and ballast raking device in state 1 shown in;

[0036] Figure 11 is Figure 8 A schematic structural diagram of the ballast shovel and ballast raking device in state 2 shown in;

[0037] Figure 12 is Figure 8 A schematic structural diagram of the ballast shovel and ballast raking device in state 3 shown in;

[0038] Figure 13 is Figure 2 Schematic diagram of the structure of the first crawler running device in the ballast replacement vehicle shown;

[0039] Figure 14 is Figure 13 Partial schematic diagram of the structure of the first crawler running device shown;

[0040] Figure 15 is Figure 14 Schematic diagram of the structure of another state of the first crawler running device shown;

[0041] Figure 16 is Figure 13 Schematic diagram of the state where the first crawler running device rotates the crawler through the slewing device shown;

[0042] Figure 17 is Figure 2 Schematic diagram of the structure of the backfill conveyor belt in the ballast replacement vehicle shown;

[0043] Figure 18 is Figure 17 Schematic diagram of the slewing working state of the backfill conveyor belt shown;

[0044] Figure 19 is Figure 1 Schematic diagram of the structure of the rail - road dual - purpose ballast transport vehicle in the ballast replacement vehicle group for ballast replacement operation during turnout replacement shown;

[0045] Figure 20 is Figure 1 Schematic diagram of the structure of the track ballast transport vehicle in the ballast replacement vehicle group for ballast replacement operation during turnout replacement shown;

[0046] Figure 21 is Figure 1 Schematic diagram of the structure of the ballast replenishment vehicle in the ballast replacement vehicle group for ballast replacement operation during turnout replacement shown. Detailed implementation manners

[0047] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention and make the above - mentioned objects, features, and advantages of the present invention more obvious and understandable, the following further describes the detailed implementation manners of the present invention in conjunction with the accompanying drawings.

[0048] It should be noted here that the description of these implementation manners is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] Please refer to Figure 1, which is a schematic structural diagram of a ballast replacement vehicle group for ballast replacement operations during turnout replacement provided by the present invention. The ballast replacement vehicle group 100 for ballast replacement operations during turnout replacement provided by the present invention includes a ballast replacement vehicle 1, a rail-road dual-purpose ballast conveyor vehicle 2, a track ballast conveyor vehicle 3, a belt material transporter vehicle 4, and a ballast replenishment vehicle 5 that are connected in sequence. Among them, the ballast replacement vehicle 1, the rail-road dual-purpose ballast conveyor vehicle 2, the track ballast conveyor vehicle 3, and the belt material transporter vehicle 4 are grouped to complete the excavation of ballast and backfilling of bottom ballast operations after the removal of the old turnout, and the ballast replenishment vehicle 5 completes the ballast backfilling and shaping operations after the installation of the new turnout. The connection or decoupling between adjacent two operation vehicles is achieved through a coupler draft gear device.

[0050] Please refer to Figure 2 , which is Figure 1 a schematic structural diagram of the ballast replacement vehicle in the ballast replacement vehicle group for ballast replacement operations during turnout replacement shown in the figure. The ballast replacement vehicle 1 includes a first vehicle frame 11, first three-axle power bogies 12 for vehicle running provided at the front and rear ends of the lower part of the first vehicle frame 11, an excavating device 13 provided at the front end of the upper part of the first vehicle frame 11, an equipment room 14 provided at the rear end of the upper part of the first vehicle frame 11, two groups of first crawler running devices 15 provided between the excavating device 13 and the equipment room 14, a first old ballast conveyor belt 16 and a first new ballast conveyor belt 17 supported on the first vehicle frame 11, a transfer conveyor belt 18 provided between the first old ballast conveyor belt 16 and the excavating device 13 and supported on the first crawler running device 15 for transporting the excavated old ballast to the first old ballast conveyor belt 16, a new ballast hopper 19 provided on the first vehicle frame 11 and connected to the first new ballast conveyor belt 17, and a backfilling conveyor belt 10 provided below the new ballast hopper 19 for bottom ballast backfilling operations. The first new ballast conveyor belt 17 is used to transport the new ballast conveyed by the track ballast conveyor vehicle, transfer it to the new ballast hopper, and then transport it to the backfilling conveyor belt through the discharge port of the new ballast hopper for bottom ballast backfilling operations. In the present invention, the output flow of the new ballast hopper can be adjusted according to the actual situation, and the backfilling conveyor belt can perform slewing control to discharge the ballast position, so as to adapt to the width change of the turnout section and improve the operation efficiency and accuracy.

[0051] Please refer to Figures 3 to 12 , where Figure 3 is Figure 2 a schematic structural diagram of the excavating device in the ballast replacement vehicle shown in the figure; Figure 4 is Figure 3 a schematic structural diagram of the excavating device from another angle shown in the figure; Figure 5 is Figure 3 a schematic structural diagram of the excavating device from yet another angle shown in the figure; Figure 6 is Figure 3 a schematic structural diagram of the working arm in the excavating device shown in the figure; Figure 7 is Figure 3 a schematic structural diagram of the conveyor belt in the excavating device shown in the figure; Figure 8 is Figure 3Schematic structural diagram of the mucking shovel and the mucking device shown; Figure 9 is Figure 8 the mucking shovel and the mucking device shown

[0052] Schematic structural diagram from another angle of the mucking device; Figure 10 is Figure 8 Schematic structural diagram of the mucking shovel and the mucking device in state 1 shown; Figure 11 is Figure 8 Schematic structural diagram of the mucking shovel and the mucking device in state 2 shown;

[0053] Figure 12 is Figure 8 Schematic structural diagram of the mucking shovel and the mucking device in state 3 shown. The mucking device 13 includes a central slewing platform 131, a driver's cab 132, two working arms 133 provided on the central slewing platform 131, a conveyor belt 144 provided between the two working arms 133, a mucking shovel 135 connected to the other end of the working arm 133, and a mucking device 136 connected to the mucking shovel 135.

[0054] The central slewing platform 131 includes a slewing center 1311, a hydraulic motor 1312 for driving the rotation of the slewing center 1311, a counterweight device 1313 provided on the slewing center 1311 and arranged opposite to the working arm 133, a raised platform 1314 provided below the slewing center 1311, and a radiator (not labeled) provided on the slewing center 11. The working arm 133 is connected to the slewing center 1311 and is driven by the slewing center to rotate; the counterweight device 1313 is arranged opposite to the working arm 133 for maintaining the stable operation of the slewing center 1311; the raised platform 1314 is used to adjust the height of the slewing center so that the heights of the working arm and the conveyor belt are adapted to the working conditions; the radiator is provided on one side of the hydraulic motor 1312 for dissipating the heat generated by the hydraulic motor 1312.

[0055] The driver's cab 132 is provided above the slewing center platform 131. Two control consoles are arranged in the driver's cab 132 to ensure that the driver's line of sight can face forward in both the mucking operation state and the maintenance state for convenient driving operation; correspondingly, the driver's seat 22 can rotate to facilitate operating the corresponding control console according to the working state.

[0056] The two working arms 133 are respectively connected to the slewing center 1311 and are arranged at intervals. The working arm 133 includes a fixed arm 1331 connected to the slewing center, a telescopic arm 1332 hinged to the fixed arm 1331, a working arm telescopic oil cylinder 1333 for driving the telescopic arm 1332 to extend or retract, and a rotary oil cylinder 1334 with one end connected to the fixed arm 1331 and the other end connected to the telescopic arm 1332 for driving the telescopic arm 1332 to rotate. The rotary oil cylinder 1334 rotates the telescopic arm 1332, driving the mucking shovel connected to the telescopic arm to rotate, so as to transfer the muck excavated by the mucking shovel to the conveyor belt. The working arm 133 is telescopic, enabling the mucking device to be applicable to different working ranges.

[0057] The conveyor belt 134 is located between the two working arms 133 and includes a first conveyor belt 1341 and a second conveyor belt 1342 slidably connected to the first conveyor belt 1341; wherein the first conveyor belt 1341 includes a first frame 13411, a driving roller 13412 arranged on the first frame, a rotary roller 13413, a tensioning roller 13414, a hydraulic motor 13415 for driving the driving roller 13412 to rotate, a first belt 13416 sequentially wound around the driving roller 13412, the rotary roller 13413 and the tensioning roller 13414, and a return idler 13417 arranged at the bottom of the frame;

[0058] The second conveyor belt 1342 includes a second frame 13421, a steering roller 13422 arranged on the second frame 13421, a redirecting roller 13423 arranged opposite to the steering roller 13422, a carrying idler 13424 arranged on the second frame, a second belt 13425 wound around the steering roller 13422 and the redirecting roller 13423, and a conveyor belt telescopic oil cylinder 13426 connecting the first frame 13411 and the second frame 13421 and used for pushing the second frame to extend and retract.

[0059] The conveyor belt telescopic oil cylinder 13426 pushes the second conveyor belt to extend and retract synchronously with the telescopic arm 1332.

[0060] The mucking shovel 135 includes a bucket 1351, a spiral muck extracting device 1352 arranged in the bucket 1351, and a second driving device (not shown) for driving the spiral muck extracting device 1352 to rotate. The bucket 1351 is connected to the other end of the telescopic arm 1332. When the telescopic arm rotates, the bucket rotates synchronously, transferring the muck collected in the bucket to the conveyor belt. The spiral muck extracting device can achieve rapid conveyance of muck, prevent muck from accumulating in the bucket, and improve the excavation efficiency.

[0061] The ballast cleaning device 136 includes a ballast cleaning drum 1361, a first driving device 1362 for driving the rotation of the ballast cleaning drum 1361, a rotating shaft 1363 connected to the ballast digging shovel 135, a connecting rod 1364 connecting the rotating shaft 1363 and the first driving device 1362, and a hydraulic cylinder 1365 with one end connected to the ballast digging shovel 135 and the other end connected to the connecting rod 1364. The ballast cleaning device 136 is hinged to the ballast digging shovel 135, and the two can work relatively independently.

[0062] In the present invention, the combination of the ballast digging shovel 135 and the ballast cleaning device 136 can adapt to different working conditions, specifically as follows:

[0063] When the hydraulic cylinder 1365 drives the ballast cleaning drum 1361 to rotate to the lower part of the ballast digging shovel 135, it is used to scrape the ballast to the front, so that the ballast digging device is in the foundation pit excavation state;

[0064] When the hydraulic cylinder 1365 drives the ballast cleaning drum 1361 to rotate to a position level with the ballast digging shovel 135, it is used to loosen the compacted ballast in the front, so that the ballast digging device is in the ballast loosening state;

[0065] When the hydraulic cylinder 1365 drives the ballast cleaning drum 1361 to rotate to the upper part of the ballast digging shovel 135, the ballast cleaning drum 1361 stops rotating, and the ballast digging shovel 135 operates independently. The working arm 133 drives the ballast digging shovel to transport the ballast to the conveyor belt.

[0066] The equipment room 14 is used to install components related to the power system and the braking system, and is provided at the other end of the first vehicle frame 11.

[0067] Please refer to Figures 13 to 16 , in which Figure 13 is Figure 2 the structural schematic diagram of the first crawler running device in the shown ballast replacement vehicle; Figure 14 is Figure 13 the partial structural schematic diagram of the shown first crawler running device; Figure 15

[0068] is Figure 14 the structural schematic diagram of another state of the shown first crawler running device; Figure 16 is Figure 13Schematic diagram of the state where the first crawler traveling device makes the crawler rotate through the slewing device. The first crawler traveling device 15 is used for the vehicle to travel after the old turnout is demolished. It includes a crawler assembly 151, a slewing device 152, a vertical leg assembly 153, a horizontal leg assembly 154, and a slewing mounting and fixing seat 155. The vertical leg assembly 153 and the horizontal leg assembly 154 are telescopic, used to realize the change of the support height and width of the crawler traveling device, facilitate the landing adjustment when the vehicle switches back to bogie traveling, and at the same time adapt to the complex working environment in the turnout section; the slewing device 152 can make the crawler assembly rotate, used to control the vehicle driving direction. In practical applications, through the automatic recognition control system, road condition information is recognized, and the vertical leg assembly of the first crawler traveling device is controlled to adjust the support height to make the vehicle run smoothly; at the same time, the automatic recognition control system also has the following functions: when it is recognized that an obstacle is encountered at the front end of the mucking device 13, the vehicle is emergently stopped by recognizing the pressure to ensure safe operation.

[0069] Please refer to Figure 17 and Figure 18 , wherein Figure 17 is Figure 2 the structural schematic diagram of the backfill conveyor belt in the shown ballast-changing vehicle; Figure 18 is Figure 17 the schematic diagram of the slewing working state of the shown backfill conveyor belt, Figure 18 in which (a) and (b) respectively represent two different states. For example, state (a) is the initial state, and state (b) is the state after the backfill conveyor belt rotates by a certain angle. The backfill conveyor belt 10 includes a slewing oil cylinder 105, a slewing center support frame 101, and a third belt 102 provided on the slewing center support frame 101. A leveling device 103 is arranged at the front end of the slewing center support frame 101. The leveling device 103 includes a ballast pushing plow 1031 and a ballast pushing plow lifting oil cylinder 1032 connected to the ballast pushing plow 1031. The leveling device 103 can realize height adjustment, used to level the bottom ballast filled in, facilitating the subsequent installation of the new turnout; the backfill conveyor belt can perform slewing control to unload the ballast position, so as to adapt to the width change in the turnout section.

[0070] Please refer to Figure 19 , which is Figure 1Schematic diagram of the structure of the rail-road dual-purpose ballast transporter in the ballast replacement vehicle group for the turnout replacement process. The rail-road dual-purpose ballast transporter 2 includes a second vehicle frame 20, a first non-powered two-axle bogie 21 for vehicle running provided at the front and rear ends of the lower part of the second vehicle frame 20, a second old ballast conveyor belt 22 provided on the second vehicle frame 20 and connected to the first old ballast conveyor belt 16, a second new ballast conveyor belt 23 provided on the second vehicle frame 20 and connected to the first new ballast conveyor belt 17, and two groups of second crawler running devices 24 installed on the second vehicle frame 20. The second old ballast conveyor belt 22 is used to convey the excavated old ballast to the rail ballast transporter 3, the second new ballast conveyor belt 23 is used to convey the new ballast conveyed by the rail ballast transporter 3 to the ballast replacement vehicle 1, and the second crawler running device 24 is used for vehicle running after the old turnout is removed.

[0071] Among them, the structure of the second crawler running device 24 is the same as that of the first crawler running device 15, and will not be elaborated here.

[0072] Please refer to Figure 20 , which is Figure 1 Schematic diagram of the structure of the rail ballast transporter in the ballast replacement vehicle group for the turnout replacement process. The rail ballast transporter 3 includes a third vehicle frame 31, a second non-powered three-axle bogie 32 and a second powered three-axle bogie 33 provided at the lower part of the third vehicle frame 31, a first ballast storage hopper 34 provided on the third vehicle frame 31 for storing new ballast, a third old ballast conveyor belt 35 provided on the upper part of the first ballast storage hopper 34, and a third new ballast conveyor belt 36 provided at the lower part of the first ballast storage hopper. The third old ballast conveyor belt 35 is used to convey the excavated old ballast to the belt-type material transporter, and the third new ballast conveyor belt 36 is used to convey the new ballast in the first ballast storage hopper 34 to the rail-road dual-purpose ballast transporter 2.

[0073] In addition, components such as a diesel fuel tank, a power system and an auxiliary system, a hydraulic oil tank, and an electrical control cabinet are also installed at the lower part of the third vehicle frame 31.

[0074] In the present invention, the belt-type material transporter 4 is selected as the WY-100 type belt-type material transporter, and its structure refers to the prior art and will not be elaborated here.

[0075] Please refer to Figure 21 , which is Figure 1Schematic structural diagram of the ballast replenishment vehicle in the ballast replacement vehicle group for ballast replacement operation during turnout replacement. The ballast replenishment vehicle 5 includes a fourth vehicle frame 51, a third non-powered three-axle bogie 52 and a third powered three-axle bogie 53 provided below the fourth vehicle frame 51, a power compartment 54 provided on the fourth vehicle frame 51, a ballast feeding belt 55 provided above the power compartment 54, a second ballast storage hopper 56 provided on the fourth vehicle frame 51, a ballast replenishment driver's cab 57 and a brake compartment 58, a rail surface cleaning brush 59, a rough shaping plow 50, a ballast distributing hopper 501 and a ballast replenishment belt 502 provided below the fourth vehicle frame 51. The ballast distributing hopper 501 and the ballast replenishment belt 502 are used to replenish new ballast in the second ballast storage hopper 56 to the turnout section. The rail surface cleaning brush 59 and the rough shaping plow 50 are used for rough shaping of the ballast and cleaning of the rail surface after the ballast replenishment belt unloads the ballast. The ballast replenishment belt 502 is similar in structure to the backfilling conveyor belt 10 and can perform rotary control to unload the ballast position to adapt to the width change of the turnout section. In addition, components such as a fuel tank, a hydraulic oil tank and an electrical control cabinet are also installed below the fourth vehicle frame 51.

[0076] The ballast replacement vehicle group for ballast replacement operation during turnout replacement provided by the present invention can realize multi-vehicle operation synchronization and safe construction through an electro-hydraulic control and monitoring system during operation, with high work efficiency, safety and reliability, and reduces the dependence on manual labor.

[0077] The above has made a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention

[0078] Under the circumstances, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A ballast replacement train set for ballast replacement operations during turnout replacement, characterized in that, It includes a ballast replacement vehicle, a railway-highway dual-purpose ballast conveyor, a track ballast conveyor, a belt material transporter, and a ballast replenishment vehicle connected in sequence. The ballast replacement vehicle, the railway-highway dual-purpose ballast conveyor, the track ballast conveyor, and the belt material transporter are grouped to complete the excavation and bottom ballast backfilling operations of the ballast after the removal of the old turnout. The ballast replenishment vehicle completes the ballast backfilling and shaping operations after the installation of the new turnout; The ballast replacement vehicle includes a first frame, first three-axle power steering bogies for vehicle running provided at the front and rear ends of the lower part of the first frame, a ballast excavation device provided at the front end of the upper part of the first frame, an equipment room provided at the rear end of the upper part of the first frame, two groups of first crawler running devices provided between the ballast excavation device and the equipment room, a first old ballast conveyor belt and a first new ballast conveyor belt supported by the first frame, a transfer conveyor belt provided between the first old ballast conveyor belt and the ballast excavation device and supported by the first crawler running device for conveying the excavated old ballast to the first old ballast conveyor belt, a new ballast hopper provided on the first frame and connected to the first new ballast conveyor belt, and a backfilling conveyor belt provided below the new ballast hopper for bottom ballast backfilling operations; The backfilling conveyor belt includes a rotary center support frame and a third belt provided on the rotary center support frame. A leveling device is provided at the front end of the rotary center support frame. The leveling device includes a ballast pushing plow and a ballast pushing plow lifting oil cylinder connected to the ballast pushing plow; The ballast excavation device includes a central slewing platform, a driver's cab provided on the central slewing platform, two working arms connected to the central slewing platform and arranged oppositely, a conveyor belt provided between the two working arms, a ballast shovel connected to the other end of the working arm, and a ballast raking device hinged to the ballast shovel. The working arm is telescopic and rotatable, and the conveyor belt telescopically moves synchronously with the working arm; The ballast shovel includes a bucket, a spiral ballast pulling device provided in the bucket, and a second driving device for driving the spiral ballast pulling device to rotate; The working arm includes a fixed arm connected to the central slewing platform, a telescopic arm hinged to the fixed arm, a working arm telescopic oil cylinder for driving the telescopic arm to extend or retract, and a rotating oil cylinder with one end connected to the fixed arm and the other end connected to the telescopic arm for driving the telescopic arm to rotate; The conveyor belt includes a first conveyor belt and a second conveyor belt slidably connected to the first conveyor belt. The first conveyor belt includes a first frame, a driving roller, a rotary roller, and a tensioning roller provided on the first frame, a hydraulic motor for providing power to the driving roller, a first belt sequentially wound around the driving roller, the rotary roller, and the tensioning roller, and a return idler provided at the bottom of the frame; The second conveyor belt includes a second frame, a steering roller provided on the second frame, a redirecting roller arranged oppositely to the steering roller, a carrying idler provided on the second frame, a second belt wound around the steering roller and the redirecting roller, and a conveyor belt telescopic oil cylinder connecting the first frame and the second frame for pushing the second frame to extend and retract. The steering roller is rotatably connected to the first frame; The ballast scraping device includes a ballast scraping drum, a first driving device for driving the rotation of the ballast scraping drum, a rotating shaft connected to the digging shovel, a connecting rod connecting the rotating shaft and the first driving device, and a hydraulic cylinder with one end connected to the digging shovel and the other end connected to the connecting rod. When the hydraulic cylinder drives the ballast scraping drum to rotate to below the digging shovel, it is used to scrape the ballast forward, putting the digging device in the foundation pit excavation state. When the hydraulic cylinder drives the ballast scraping drum to rotate to a position level with the digging shovel, it is used to loosen the compacted ballast in the front, putting the digging device in the ballast loosening state. When the hydraulic cylinder drives the ballast scraping drum to rotate above the digging shovel, the ballast scraping drum stops rotating, and the digging shovel operates independently. The working arm drives the digging shovel to transfer the ballast to the conveyor belt.

2. The ballast replacement vehicle group for ballast replacement operation during turnout replacement according to claim 1, characterized in that, The railway-highway dual-purpose ballast conveyor vehicle includes a second vehicle frame, first non-powered two-axle bogies for vehicle running provided at the front and rear ends of the lower part of the second vehicle frame, a second old ballast conveyor belt provided on the second vehicle frame and connected to the first old ballast conveyor belt, a second new ballast conveyor belt provided on the second vehicle frame and connected to the first new ballast conveyor belt, and two sets of second crawler running devices installed on the second vehicle frame. The second old ballast conveyor belt is used to convey the excavated old ballast to the railway ballast conveyor vehicle, the second new ballast conveyor belt is used to convey the new ballast conveyed by the railway ballast conveyor vehicle to the ballast replacement vehicle, and the second crawler running device is used for vehicle running after the old turnout is removed.

3. The ballast replacement car group for ballast replacement operation during turnout replacement according to claim 1, characterized in that, The railway ballast conveyor vehicle includes a third vehicle frame, a second non-powered three-axle bogie and a second powered three-axle bogie provided at the lower part of the third vehicle frame, a first ballast storage hopper provided on the third vehicle frame for storing new ballast, a third old ballast conveyor belt provided above the first ballast storage hopper, and a third new ballast conveyor belt provided below the first ballast storage hopper. The third old ballast conveyor belt is used to convey the excavated old ballast to the belt-type material transport vehicle, and the third new ballast conveyor belt is used to convey the new ballast in the first ballast storage hopper to the railway-highway dual-purpose ballast conveyor vehicle.

4. The ballast replacement car group for ballast replacement operation during turnout replacement according to claim 1, characterized in that, The ballast replenishing vehicle includes a fourth vehicle frame, a third non-powered three-axle bogie and a third powered three-axle bogie provided at the lower part of the fourth vehicle frame, a power room provided on the fourth vehicle frame, a ballast adding belt provided above the power room, a second ballast storage hopper provided on the fourth vehicle frame, a ballast replenishing driver's cab and a braking room, a rail surface cleaning brush, a rough shaping plow, a ballast distributing hopper and a ballast replenishing belt provided at the lower part of the fourth vehicle frame. The ballast distributing hopper and the ballast replenishing belt are used to replenish the new ballast in the second ballast storage hopper to the turnout section, and the rail surface cleaning brush and the rough shaping plow are used for rough shaping of the ballast and cleaning of the rail surface after the ballast replenishing belt unloads the ballast.

5. The ballast replacement train set for ballast replacement operation during turnout replacement according to claim 1 or 2, characterized in that, The first crawler running device and the second crawler running device have the same structure, and respectively include a crawler assembly, a slewing device, a vertical leg assembly, a horizontal leg assembly and a slewing installation fixing seat. The vertical leg assembly and the horizontal leg assembly are telescopic, used to realize the change of the support height and width of the crawler running device, and the slewing device is used to control the vehicle driving direction.

6. The ballast replacement train set for ballast replacement operation during turnout replacement according to claim 5, characterized in that, It further includes an automatic recognition control system which, according to the recognized road condition information, controls the vertical leg assemblies of the first crawler traveling device or the second crawler traveling device to adjust the support height.

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