An excavating device for ballast replacement operation during turnout replacement

Abstract

The present invention discloses a ballast digging device for ballast replacement operation during turnout replacement, which includes a central slewing platform, two working arms connected to the central slewing platform and arranged oppositely, a conveyor belt arranged between the two working arms, a ballast digging shovel connected to the other end of the working arm, and a ballast raking device hinged to the ballast digging shovel. The working arm is telescopic and rotatable, the conveyor belt synchronously telescopes with the working arm, and the ballast digging shovel and the ballast raking device cooperate to adapt to different working states such as foundation pit excavation, ballast loosening, and ballast collection and transportation. The ballast digging device for ballast replacement operation during turnout replacement provided by the present invention has high working efficiency, is safe and reliable, is suitable for excavation with the continuously increasing width of the turnout section, and can simultaneously adapt to the ballast replacement operation after the removal of the old turnout during turnout replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of railway engineering vehicles, and particularly relates to a ballast excavation device for ballast replacement operation 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 during train passing be guaranteed. A good ballast replacement operation construction plan is an important link to ensure the operation 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 skylight points. It is an urgent long-term need for the track maintenance department 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. 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 excavation device for ballast replacement operation 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 excavation device for ballast replacement operation during turnout replacement, which has high working efficiency and is safe and reliable.

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

[0007] A ballast excavation device for ballast replacement operation during turnout replacement includes a central slewing platform, two working arms connected to the central slewing platform and arranged oppositely, a conveyor belt arranged 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 synchronously extends and retracts with the working arm;

[0008] The ballast raking device includes a ballast raking drum, a first driving device for driving the ballast raking drum to rotate, and

[0009] 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;

[0010] When the hydraulic cylinder drives the ballast scraping drum to rotate to below the ballast digging shovel, it is used to scrape the ballast forward, so that the ballast digging device is in the foundation pit excavation state;

[0011] When the hydraulic cylinder drives the ballast scraping drum to rotate to a position level with the ballast digging shovel, it is used to loosen the compacted ballast in the front, so that the ballast digging device is in the ballast loosening state;

[0012] When the hydraulic cylinder drives the ballast scraping drum to rotate above the ballast digging shovel, the ballast scraping drum stops rotating, and the ballast digging shovel operates independently. The working arm drives the ballast digging shovel to transport the ballast to the conveyor belt.

[0013] Further, the ballast digging shovel includes a bucket, a spiral ballast extracting device arranged in the bucket, and a second driving device for driving the spiral ballast extracting device to rotate.

[0014] Further, 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 turning roller and a tensioning roller arranged on the first frame, a hydraulic motor for providing power to the driving roller, a first belt sequentially wound around the driving roller, the turning roller and the tensioning roller, and a return idler arranged at the bottom of the frame;

[0015] The second conveyor belt includes a second frame, a turning roller arranged on the second frame, a redirecting roller arranged opposite to the turning roller, a carrying idler arranged on the second frame, a second belt wound around the turning 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 turning roller is rotatably connected to the first frame.

[0016] Further, 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.

[0017] Further, the slewing center platform includes a slewing center, a hydraulic motor for driving the slewing center to rotate, a counterweight device arranged at the slewing center and opposite to the working arm, a raised platform arranged below the slewing center, and a radiator arranged at the slewing center.

[0018] Further, a driver's cab is also arranged on the slewing center platform.

[0019] Further, the driver's cab includes a driver's cab main body, a driver's seat arranged in the driver's cab main body, a boarding ladder, a hydraulic air conditioner, a fuel heating device and a first console.

[0020] Furthermore, the driver's cab further includes a second console disposed at the rear end of the driver's cab main body and opposite to the first console.

[0021] Compared with the prior art, the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention has the following beneficial effects:

[0022] First, the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention can adapt to the width change of the turnout section through the telescopic rotation of the central slewing platform and the working arm, so as to quickly collect ballast; the ballast scraping device can realize automatic foundation pit excavation and loosening of the slabbed ballast, realizing different working functions; the spiral ballast scraping device can realize rapid ballast conveying, prevent ballast from accumulating on the bucket, and can adapt to high-efficiency excavation.

[0023] Second, the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention can adapt to the ballast replacement operation after the removal of the old turnout during the turnout replacement process, and has high efficiency; it can adapt to the excavation with the continuously increasing width of the turnout section through the rotation of the central slewing platform.

[0024] Third, the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention enables the driver in the train preparation state to control the running of the whole vehicle through the double consoles and the rotatable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 FIG. is a schematic structural diagram of the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention;

[0027] Figure 2 FIG. Figure 1 is a schematic structural diagram of the ballast digging device for ballast replacement operation during turnout replacement shown from another angle;

[0028] Figure 3 FIG. Figure 1 is a schematic structural diagram of the ballast digging device for ballast replacement operation during turnout replacement shown from yet another angle;

[0029] Figure 4 FIG. Figure 1 is a schematic structural diagram of the central slewing platform of the ballast digging device for ballast replacement operation during turnout replacement shown;

[0030] Figure 5 is Figure 4 A schematic structural view of another angle of the center slewing table shown;

[0031] Figure 6 is Figure 1 A schematic structural view of the driver's cab in the ballast excavation device for ballast replacement operation during turnout replacement shown;

[0032] Figure 7 is Figure 6 A schematic structural view of another angle of the driver's cab shown;

[0033] Figure 8 is Figure 1 A schematic structural view of the working arm in the ballast excavation device for ballast replacement operation during turnout replacement shown;

[0034] Figure 9 is Figure 1 A schematic structural view of the conveyor belt in the ballast excavation device for ballast replacement operation during turnout replacement shown;

[0035] Figure 10 is Figure 1 A schematic structural view of the ballast excavation shovel and ballast raking device in the ballast excavation device for ballast replacement operation during turnout replacement shown;

[0036] Figure 11 is Figure 10 A schematic structural view of another angle of the ballast excavation shovel and ballast raking device shown;

[0037] Figure 12 is Figure 10 A schematic structural view of the ballast excavation shovel and ballast raking device in state 1 shown;

[0038] Figure 13 is Figure 10 A schematic structural view of the ballast excavation shovel and ballast raking device in state 2 shown;

[0039] Figure 14 is Figure 10 A schematic structural view of the ballast excavation shovel and ballast raking device in state 3 shown. Detailed implementation manners

[0040] In order to enable the personnel in the technical field 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.

[0041] 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.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 , wherein Figure 1 is a schematic structural view of the ballast excavation device for ballast replacement operation during turnout replacement provided by the present invention; Figure 2 is Figure 1 a schematic structural view of another angle of the ballast excavation device for ballast replacement operation during turnout replacement shown in Figure 3 is Figure 1 a schematic structural view of yet another angle of the ballast excavation device for ballast replacement operation during turnout replacement shown in. The ballast excavation device 100 for ballast replacement operation during turnout replacement provided by the present invention includes a central slewing platform 1, a driver's cab 2, two working arms 3 provided on the central slewing platform 1, a conveyor belt 4 provided between the two working arms 3, a ballast excavation shovel 5 connected to the other end of the working arm 3, and a ballast raking device 6 connected to the ballast excavation shovel 5.

[0043] Please refer to Figure 4 and Figure 5 , wherein Figure 4 is Figure 1 a schematic structural view of the central slewing platform of the ballast excavation device for ballast replacement operation during turnout replacement shown in Figure 5 is Figure 4 a schematic structural view of another angle of the central slewing platform shown in. The central slewing platform 1 includes a slewing center 11, a hydraulic motor 12 for driving the rotation of the slewing center 11, a counterweight device 13 provided on the slewing center 11 and arranged opposite to the working arm 3, a heightening platform 14 provided below the slewing center 11, and a radiator 15 provided on the slewing center 11. The working arm 3 is connected to the slewing center 11 and is driven by the slewing center to rotate; the counterweight device 13 is arranged opposite to the working arm 3 and is used to maintain the stable operation of the slewing center 11; the heightening platform 14 is used to adjust the height of the slewing center to make the heights of the working arm and the conveyor belt adapt to the working conditions; the radiator 15 is provided on one side of the hydraulic motor 12 and is used to dissipate the heat generated by the hydraulic motor 12.

[0044] Please refer to Figure 6 and Figure 7 , wherein Figure 6 is Figure 1 a schematic structural view of the driver's cab in the ballast excavation device for ballast replacement operation during turnout replacement shown in Figure 7 is Figure 6Schematic structural diagram of another angle of the cab shown. The cab 2 is arranged above the slewing center platform 1, and it includes a cab main body 21, a driver's seat 22 arranged in the cab main body 21, a boarding ladder 23 arranged at the door, a hydraulic air conditioner 24 and a fuel heating device 25 arranged in the cab main body 21, and a first console 26 and a second console 27. Two consoles are provided to ensure that the driver's line of sight can face forward in both the ballast excavation operation state or the maintenance state, facilitating driving operations; correspondingly, the driver's seat 22 can rotate to facilitate operating the first console 26 or the second console 27 according to the working state; the hydraulic air conditioner 24 and the fuel heating device 25 are used to ensure the driver's working environment.

[0045] Please refer to Figure 8 , which is Figure 1 Schematic structural diagram of the working arm in the ballast excavation device for ballast replacement operation during turnout replacement shown. Two working arms 3 are respectively connected to the slewing center 11 and are arranged at intervals. The working arm 3 includes a fixed arm 31 connected to the slewing center, a telescopic arm 32 hinged to the fixed arm 31, a working arm telescopic oil cylinder 33 for driving the telescopic arm 32 to extend or retract, and a rotating oil cylinder 34 with one end connected to the fixed arm 31 and the other end connected to the telescopic arm 32 for driving the telescopic arm 32 to rotate. The rotating oil cylinder 34 rotates the telescopic arm 32, driving the ballast shovel connected to the telescopic arm to rotate, thereby transferring the ballast excavated by the ballast shovel to the conveyor belt. The working arm 3 can be telescopic, enabling the ballast excavation device to be applicable to different working ranges.

[0046] Please refer to Figure 9 , which is Figure 1 Schematic structural diagram of the conveyor belt in the ballast excavation device for ballast replacement operation during turnout replacement shown. The conveyor belt 4 is located between two working arms 3, and it includes a first conveyor belt 41 and a second conveyor belt 42 slidably connected to the first conveyor belt 41; among them, the first conveyor belt 41 includes a first frame 411, a driving roller 412 arranged on the first frame, a turning roller 413, a tensioning roller 414, a hydraulic motor 415 for driving the driving roller 412 to rotate, a first belt 416 sequentially wound around the driving roller 412, the turning roller 413, and the tensioning roller 414, and a return idler 417 arranged at the bottom of the frame;

[0047] The second conveyor belt 42 includes a second frame 421, a steering roller 422 arranged on the second frame 421, a redirecting roller 423 arranged opposite to the steering roller 422, a carrying idler 424 arranged on the second frame, a second belt 425 wound around the steering roller 422 and the redirecting roller 423, and a conveyor belt telescopic oil cylinder 426 connecting the first frame 411 and the second frame 421 and used to push the second frame to expand and contract.

[0048]

[0049] The conveyor belt telescopic oil cylinder 426 drives the second conveyor belt to telescopically extend and retract synchronously with the telescopic arm 32.

[0050] Please refer to Figure 10 and Figure 11 , where Figure 10 is Figure 1 a schematic structural view of the mucking shovel and the ballast scraping device in the mucking device for ballast replacement during turnout replacement shown in Figure 11 is Figure 10 a schematic structural view of the mucking shovel and the ballast scraping device from another angle. The mucking shovel 5 includes a bucket 51, a spiral ballast extraction device 52 disposed in the bucket 51, and a second driving device (not shown) for driving the spiral ballast extraction device 52 to rotate. The bucket 51 is connected to the other end of the telescopic arm 32. When the telescopic arm rotates, the bucket rotates synchronously, so that the ballast collected in the bucket is transferred to the conveyor belt. The spiral ballast scraping device can achieve rapid transportation of ballast, prevent ballast from accumulating in the bucket, and improve the excavation efficiency.

[0051] The ballast scraping device 6 includes a ballast scraping drum 61, a first driving device 62 for driving the ballast scraping drum 61 to rotate, a rotating shaft 63 connected to the mucking shovel 5, a connecting rod 64 connecting the rotating shaft 63 and the first driving device 62, and a hydraulic cylinder 65 with one end connected to the mucking shovel 5 and the other end connected to the connecting rod 64. The ballast scraping device 6 is hinged to the mucking shovel 5, and the two can work relatively independently.

[0052] Please refer to Figure 12 , Figure 13 and Figure 14 , where Figure 12 is Figure 10 a schematic structural view of the mucking shovel and the ballast scraping device in state 1 shown in Figure 13 is Figure 10 a schematic structural view of the mucking shovel and the ballast scraping device in state 2 shown in Figure 14 is Figure 10 a schematic structural view of the mucking shovel and the ballast scraping device in state 3 shown in

[0053] When the hydraulic cylinder 65 drives the ballast scraping drum 61 to rotate back to below the mucking shovel 5, it is used to scrape the ballast forward, so that the mucking device is in the foundation pit excavation state;

[0054] When the hydraulic cylinder 65 drives the ballast scraping drum 61 to rotate back to a position level with the mucking shovel 5, it is used to loosen the compacted ballast in the front, so that the mucking device is in the ballast loosening state;

[0055] When the hydraulic cylinder 65 drives the ballast scraping drum 61 to rotate back to above the mucking shovel 5, the ballast scraping drum 61 stops rotating, and the mucking shovel 5 operates independently. The working arm 3 drives the mucking shovel to transfer the ballast to the conveyor belt.

[0056] Compared with the prior art, the ballast digging device for ballast replacement operation during turnout replacement provided by the present invention has the following beneficial effects:

[0057] 1. The ballast digging device for ballast replacement operation during turnout replacement provided by the present invention can adapt to the change in the width of the turnout section through the telescopic rotation of the central slewing platform and the working arm, so as to realize the rapid collection of ballast; the automatic excavation of the foundation pit and the loosening of the slabbed ballast can be realized through the ballast scraping device, so as to realize different working functions; the rapid transportation of ballast can be realized through the spiral ballast scraping device, preventing the ballast from piling up on the bucket, and being able to adapt to high-efficiency excavation.

[0058] 2. The ballast digging device for ballast replacement operation during turnout replacement provided by the present invention can adapt to the ballast replacement operation after the removal of the old turnout during the turnout replacement process, and has high efficiency; the excavation can be adapted to the continuously widening width of the turnout section through the rotation of the central slewing platform.

[0059] 3. The ballast digging device for ballast replacement operation during turnout replacement provided by the present invention realizes the operation of the whole vehicle running by the driver in the running preparation state through the double control console and the rotatable operation.

[0060] 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, various changes, modifications, substitutions and variations made to these embodiments without departing from the principle and spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An excavating device for ballast replacement operation during turnout replacement, characterized in that, it includes a central slewing platform, two working arms connected to and oppositely arranged with the central slewing platform, a conveyor belt arranged between the two working arms, an excavating shovel connected to the other end of the working arm, and a ballast raking device hinged to the excavating shovel. The working arm is telescopic and rotatable, and the conveyor belt telescopically moves synchronously with the working arm; 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 central slewing platform includes a slewing center, a hydraulic motor for driving the slewing center to rotate, a counterweight device arranged at the slewing center and oppositely arranged with the working arm, a raised platform arranged below the slewing center, and a radiator arranged at the slewing center; 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 excavating shovel, a connecting rod connecting the rotating shaft and the first driving device, and a hydraulic oil cylinder with one end connected to the excavating shovel and the other end connected to the connecting rod; The excavating shovel includes a bucket, a spiral ballast extracting device arranged in the bucket, and a second driving device for driving the spiral ballast extracting device to rotate. The spiral ballast extracting device quickly conveys the ballast to the conveyor belt; 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 drum, a rotary drum and a tensioning drum arranged on the first frame, a hydraulic motor for providing power to the driving drum, a first belt sequentially winding around the driving drum, the rotary drum and the tensioning drum, and a return idler arranged at the bottom of the frame; The second conveyor belt includes a second frame, a steering drum arranged on the second frame, a redirecting drum oppositely arranged with the steering drum, a carrying idler arranged on the second frame, a second belt winding around the steering drum and the redirecting drum, and a conveyor belt telescopic oil cylinder connecting the first frame and the second frame for pushing the second frame to telescopically move. The steering drum is rollingly connected to the first frame; When the hydraulic oil cylinder drives the ballast raking drum to rotate to the lower part of the excavating shovel, it is used to rake the ballast forward, so that the excavating device is in the foundation pit excavation state; When the hydraulic oil cylinder drives the ballast raking drum to rotate to a position level with the excavating shovel, it is used to loosen the compacted ballast in the front, so that the excavating device is in the ballast loosening state; When the hydraulic oil cylinder drives the ballast raking drum to rotate to the upper part of the excavating shovel, the ballast raking drum stops rotating, and the excavating shovel operates independently. The working arm drives the excavating shovel to transfer the ballast to the conveyor belt.

2. The excavating device for ballast replacement operation during turnout replacement according to claim 1, characterized in that, it further includes a driver's cab arranged on the central slewing platform.

3. The excavating device for ballast replacement operation during turnout replacement according to claim 2, characterized in that, The driver's cab includes a driver's cab main body, a driver's seat provided on the driver's cab main body, a boarding ladder, a hydraulic air conditioner, a fuel heating device, and a first console.

4. The ballast excavation device for ballast replacement operation during turnout replacement according to claim 3, characterized in that the driver's cab further includes a second console provided at the rear end of the driver's cab main body and disposed opposite to the first console.

Images