Rail laying device

Abstract

The invention relates to the field of rail laying, and particularly discloses a rail laying device which comprises a rack, two groups of arc bending mechanisms, an inner support frame, a console and an electric power system, the arc bending mechanisms are symmetrically mounted on the rack, each arc bending mechanism comprises a fixed part, a rotating part and a guide rail structure, the fixed parts are fixed on the rack, and the rotating parts are fixed on the rack; the rotating part rotates relative to the fixed part along the guide rail structure, an angle sensor is arranged at the rotating part, the inner supporting frame is arranged between the two arc bending mechanisms, and the control table is installed on the working platform and internally provided with a PLC control system. The construction efficiency can be improved by more than 30%, the human input is reduced, the construction cost is reduced, different track curvature requirements can be met, the applicability is high, manual operation is reduced, the safety risk in the construction process is reduced, and track laying deviation caused by personal errors is avoided.

Description

Technical Field

[0001] The invention relates to the field of rail laying, in particular to a rail laying device. Background Art

[0002] In the process of railway construction, track laying is a crucial link. In order to ensure the smoothness and safety of train operation, the track often needs to be laid according to the predetermined track design, including a certain curvature adjustment. However, the current track laying technology still has many shortcomings.

[0003] The existing rail laying methods mainly rely on the following methods:

[0004] Manual rail bending: Construction workers use simple mechanical tools (such as crowbars, hydraulic rail bender, etc.) to manually adjust the curvature of the rail. This method has a long construction period, high labor intensity, and large human errors, making it difficult to ensure the accuracy of the rail curvature.

[0005] Traditional mechanical rail bending machine: Mechanical rail bending machine can apply bending force to the rails through hydraulic or mechanical means to form a certain curvature. However, such equipment often cannot monitor and adjust the bending angle in real time, resulting in repeated measurement and correction during the construction process, affecting construction efficiency.

[0006] Adjustment after the overall track laying: Some construction teams first lay the rails on the sleepers, and then change the track curvature by adjusting the height and position of the sleepers. Although this method can reduce the difficulty of rail deformation to a certain extent, the adjustment accuracy is limited and it takes a long time to construct.

[0007] The above method has problems such as low curvature adjustment accuracy, low construction efficiency, and large manual errors, which makes it difficult to meet the needs of modern railway construction for high-precision track laying. Therefore, there is an urgent need for a rail laying device that can automatically and accurately adjust the curvature of the rail to improve construction efficiency and ensure track laying quality. Summary of the invention

[0008] In view of the existing problems, the present invention provides a rail laying device, which can effectively solve the problems raised in the background technology.

[0009] To solve the above problems, the present invention adopts the following technical solutions:

[0010] A rail laying device, comprising:

[0011] A frame, wherein walking mechanisms are provided on both sides of the frame, and a working platform is laid on the top surface of the frame;

[0012] The arc bending mechanism is provided in two groups and symmetrically mounted on the frame, the arc bending mechanism comprises a fixed part, a rotating part and a guide rail structure, the fixed part is fixed on the frame, the rotating part rotates relative to the fixed part along the guide rail structure, and an angle sensor is provided at the rotating part, the angle sensor is used to monitor the rotation angle of the rotating part relative to the fixed part in real time;

[0013] An inner support frame is provided between the two bending mechanisms and is used to support the distance between the two rails;

[0014] A control panel, which is installed on the working platform and has a PLC control system inside. The control panel has a control screen for controlling the bending mechanism;

[0015] The power system is installed on the working platform.

[0016] As a further solution of the present invention: the fixed part and the rotating part are both arranged on the outside of the two rails, the inner support frame is arranged between the two rails, and at least two groups of rolling structures are symmetrically arranged on both sides of the rails, at least one group of the rolling structures is fixedly installed on the fixed part and the rotating part, and at least two groups of rolling structures are fixed on the inner support frame.

[0017] As a further solution of the present invention: the inner support frame includes two inner support rods, rod one and rod two, the rod one and rod two rotate relative to each other, the two inner support rods are respectively fixed on rod one and rod two, the rod one is fixedly connected to the frame, and the rolling structure is fixed at both ends of the inner support rods.

[0018] As a further solution of the present invention: the rolling structure includes an axle frame, and three sets of pressure wheels are movably connected to the axle frame.

[0019] As a further solution of the present invention: the sides of the rotating part and the fixed part are each provided with a plurality of groups of first threaded holes, the shaft frame on the rolling structure is threadedly connected to the first threaded holes through a first bolt, and a plurality of groups of second threaded holes are also matched on the rod member 1 and the rod member 2, and the inner support rod is connected to the rod member 1 and the rod member 2 through a second bolt passing through the second threaded hole.

[0020] As a further solution of the present invention: the guide rail structure includes two groups of concentric arc guide rails, the inner arc guide rail and the outer arc guide rail are fixedly connected by multiple connecting rods, the arc guide rails are provided with arc guide grooves, and the rotating member is fixedly connected with a slider, and when the rotating member rotates relative to the fixed member, the slider slides along the arc guide groove.

[0021] As a further solution of the present invention: the cross section of the circular arc guide groove is a T-shaped structure, and the sliding block is also a T-shaped block.

[0022] As a further solution of the present invention: a servo motor is fixedly mounted on the rotating member, a driving gear is fixedly connected to the driving shaft of the servo motor, an outer side surface of the outer arc guide rail is provided with arc teeth, and the driving gear meshes with the arc teeth.

[0023] As a further solution of the present invention: the rotating member and the fixed member are both rod-shaped structures, the rotating member is fixedly connected with a rotating shaft, the rotating shaft is movably connected to the fixed member, and the rotating shaft is cocentrically arranged with the circular arc guide rail, and the angle sensor is installed on the rotating shaft.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention performs arc bending operation on the rails through an arc bending mechanism, and ensures the distance between the two rails through an inner support frame, adopts an angle sensor and a PLC control system, combined with a real-time feedback mechanism, to achieve precise adjustment of the curvature of the rails, realizes high-precision track laying, and can automatically complete the track bending operation. Compared with traditional manual or semi-automatic methods, the present invention can improve construction efficiency by more than 30%, reduce manpower input, and reduce construction costs. It can adapt to different track curvature requirements, has strong applicability, reduces manual operations, reduces safety risks during construction, and avoids track laying deviations due to human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective three-dimensional schematic diagram of the overall structure of a rail laying device;

[0026] Figure 2 A three-dimensional schematic diagram of the overall structure of a rail laying device from another perspective;

[0027] Figure 3 It is a three-dimensional schematic diagram of a frame structure of a rail laying device;

[0028] Figure 4 It is a structural schematic diagram of an arc bending mechanism and an inner support frame in a rail laying device;

[0029] Figure 5 It is a structural schematic diagram of an arc bending mechanism in a rail laying device;

[0030] Figure 6 A schematic diagram of the connection between a fixed part and a rotating part in a rail laying device;

[0031] Figure 7 It is a schematic diagram of the exploded structure of a rotating part and a guide rail in a rail laying device;

[0032] Figure 8 It is a schematic diagram of the structure of an inner support frame in a rail laying device;

[0033] Fig. 9The figure is a schematic diagram of a rolling structure in a rail laying device.

[0034] In the figure: 1. frame; 2. bending arc mechanism; 21. fixing part; 22. rotating part; 221. slider; 222. rotating shaft; 23. guide rail structure; 231. arc guide rail; 232. connecting rod; 233. arc guide groove; 234. arc tooth; 24. angle sensor; 25. first threaded hole; 26. first bolt; 27. servo motor; 28. driving gear; 3. control panel; 4. inner support frame; 41. inner support rod; 42. rod one; 43. rod two; 44. second threaded hole; 45. second bolt; 5. power system; 6. walking mechanism; 7. working platform; 8. control panel; 9. rolling structure; 91. axle frame; 92. pressure wheel; 10. rail. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Combination Figures 1 to 9 The present embodiment is described. The present embodiment provides a rail laying device, including a frame 1, an arc bending mechanism 2, an inner support frame 4, a control console 3 and a power system 5. The frame 1 is made of high-strength metal material to ensure stability and reliability during the construction process. Traveling mechanisms 6 are arranged on both sides of the frame 1. The traveling mechanisms 6 adopt active traveling mechanisms or passive traveling mechanisms. The frame 1 can be driven to walk by itself or towed by a tractor. The traveling mechanism 6 is a roller structure or a crawler structure. A working platform 7 is laid on the top surface of the frame 1. The control console 3 and the power system 5 are both installed on the working platform 7, and a PLC control system is arranged in the control console 3. The control console 3 has a control screen 8 for controlling the arc bending mechanism 2. The power system 5 provides a power source for the entire laying device. When working, the operator controls the PLC control system through the control console 3 on the working platform 7, and then controls the arc bending mechanism 2 to bend the rail 10.

[0037] like Figure 3-7As shown, the arc bending mechanism 2 is set into two groups and is symmetrically installed on the frame 1. The arc bending mechanism 2 includes a fixed part 21, a rotating part 22 and a guide rail structure 23. The fixed part 21 is fixed on the frame 1, and the rotating part 22 rotates relative to the fixed part 21 along the guide rail structure 23. The rotating part 22 is arranged on the front side of the laying direction of the rail 10, and an angle sensor 24 is arranged at the rotating part. The angle sensor 24 is used for real-time monitoring of the rotation angle of the rotating part 22 relative to the fixed part 21. The inner support frame 4 is arranged between the two arc bending mechanisms 2, and is used for fixed-distance support of the distance between the two rails 10. The rotation angle of the rotating part 22 relative to the fixed part 21 is controlled by the control console 3, and the rail 10 is bent in an arc by cooperating with the inner support frame 4.

[0038] Furthermore, the fixed part 21 and the rotating part 22 are both arranged on the outside of the two rails 10, and the inner support frame 4 is arranged between the two rails 10. At least two groups of rolling structures 9 are symmetrically arranged on both sides of the rail 10, that is, two symmetrical rolling structures 9 are arranged on both sides of the rail 10, each symmetrical rolling structure 9 is a group, at least one group of rolling structures 9 is fixedly installed on the fixed part 21 and the rotating part 22, and at least two groups of rolling structures 9 are fixed on the inner support frame 4, with the two rolling structures 9 on the fixed part 21 and the rotating part 22 as support points, so as to realize point pressure on the rail 10. At the same time, in this example, the rolling structures 9 on the fixed part 21 and the rotating part 22 are at the same distance from the rotating parts of the two, that is, the rolling structures 9 on the fixed part 21 and the rotating part 22 are on the same circular curve. Further, a displacement sensor can be arranged on the rotating part 22. According to the displacement distance of the displacement sensor, the rotation angle of the rotating part 22 relative to the fixed part 21 can also be further measured, and the bending arc accuracy can be further improved in cooperation with the angle sensor 24.

[0039] like Figure 3 , Figure 8 As shown, the inner support frame 4 includes two inner support rods 41, a rod 1 42 and a rod 2 43. The rod 1 42 and the rod 2 43 rotate relative to each other. The two inner support rods 41 are respectively fixed on the rod 1 42 and the rod 2 43. The rod 1 42 is fixedly connected to the frame 1. The rolling structure 9 is fixed at both ends of the inner support rods 41. The rod 1 42 and the fixing part 21 are both located on the rear side of the laying direction of the rail 10. When the rail 10 bends, the inner support rod 41 can support the inner side of the rail 10.

[0040] like Figure 2 , 9As shown, the rolling structure 9 includes an axle frame 91, on which three groups of pressure wheels 92 are movably connected, and the pressure wheels 92 are axially connected to the axle frame 91. The conventional rail 10 is an I-shaped structure, and the three groups of pressure wheels 92 are respectively fitted with the upper and lower flange plate sides and the web of the rail 10, wherein the pressure wheels 92 contacting the upper and lower flange plates can adopt a groove wheel structure, and the pressure wheels 92 fitted with the web are a columnar structure. The three groups of pressure wheels 92 are used to fit and pressurize the rail 10 at the same time to reduce damage to the rail 10, while ensuring the uniformity of the force on the side of the rail 10.

[0041] like Figure 6 , Figure 8 As shown, the sides of the rotating member 22 and the fixed member 21 are provided with a plurality of first threaded holes 25, the shaft frame 91 on the rolling structure 9 is threadedly connected to the first threaded holes 25 through the first bolts 26, and a plurality of second threaded holes 44 are also matched on the rod 1 42 and the rod 2 43, and the inner support rod 41 is connected to the rod 1 42 and the rod 2 43 by the second bolts 45 passing through the second threaded holes 44, so that the position of the rolling structure 9 can be adjusted, thereby adjusting the force borne by the rail 10 when bending.

[0042] like Figure 7 As shown, the guide rail structure 23 includes two sets of concentric circular arc guide rails 231, the inner circular arc guide rail 231 and the outer circular arc guide rail 231 are fixedly connected by a plurality of connecting rods 232, the circular arc guide rail 231 is provided with an arc guide groove 233, and the rotating member 22 is fixedly connected with a slider 221. When the rotating member 22 rotates relative to the fixed member 21, the slider 221 slides along the circular arc guide groove 233, and the cross-section of the circular arc guide groove 233 is a T-shaped structure, and the slider 221 is also a T-shaped block. The design of the T-shaped structure can limit the rotating member 22, so that the rotating member 22 can only maintain horizontal rotation.

[0043] like Figure 4 , Figure 5 As shown, in this example, a servo motor 27 is fixedly mounted on the rotating member 22, a driving gear 28 is fixedly connected to the driving shaft of the servo motor 27, an arc-shaped tooth 234 is provided on the outer side of the outer arc guide rail 231, the driving gear 28 is meshed with the arc-shaped tooth 234, the servo motor 27 is connected to the PLC control system, the servo motor 27 is used to drive the driving gear 28 to rotate, the driving gear 28 moves along the arc-shaped tooth 234, and then drives the rotating member 22 to rotate relative to the fixed member 21. Of course, the gear meshing structure in this example is not limited to drive the rotating member 22 to rotate, and other structures such as a crank transmission structure can also be used.

[0044] like Figure 7As shown, the rotating member 22 and the fixed member 21 are both rod-shaped structures. A rotating shaft 222 is fixedly connected to the rotating member 22. The rotating shaft 222 is movably connected to the fixed member 21, and the rotating shaft 222 is cocentrically arranged with the arc guide rail 231. The angle sensor 24 is installed on the rotating shaft 222 to ensure that the rotating member 22 rotates in an arc line relative to the fixed member 21.

[0045] The working principle of the present invention is as follows: when working, the rails 10 are first laid on the sleepers by using a track laying machine, and the vehicle body structure moves along the length direction of the rails 10, so that the rails 10 on each side are located between the two rolling structures 9, and the operator is on the working platform 7. After the rails 10 are bent, the laid rails 10 are fixed, so that the unlaid rails 10 on the front side can be bent relative to the fixed rails 10 on the rear side, and the GPS positioning system is used to achieve the relative bending of the rails 10, and the bending mechanism 2 is used to bend the rails 10. The inner support frame 4 ensures the distance between the two rails 10. The angle sensor 24 and the PLC control system are used in combination with the real-time feedback mechanism to achieve precise adjustment of the curvature of the rail 10, realize high-precision track laying, and can automatically complete the track bending operation. Compared with the traditional manual or semi-automatic method, the construction efficiency can be improved by more than 30%, the manpower input can be reduced, the construction cost can be reduced, the curvature requirements of different tracks can be met, the applicability is strong, the manual operation can be reduced, the safety risk in the construction process can be reduced, and the track laying deviation caused by human error can be avoided.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail laying device, characterized in that: include: A frame, wherein walking mechanisms are provided on both sides of the frame, and a working platform is laid on the top surface of the frame; The arc bending mechanism is provided in two groups and symmetrically mounted on the frame, the arc bending mechanism comprises a fixed part, a rotating part and a guide rail structure, the fixed part is fixed on the frame, the rotating part rotates relative to the fixed part along the guide rail structure, and an angle sensor is provided at the rotating part, the angle sensor is used to monitor the rotation angle of the rotating part relative to the fixed part in real time; An inner support frame is provided between the two bending mechanisms and is used to support the distance between the two rails; A control panel, which is installed on the working platform and has a PLC control system inside. The control panel has a control screen for controlling the bending mechanism; The power system is installed on the working platform.

2. A rail laying device according to claim 1, characterized in that: The fixed part and the rotating part are both arranged on the outside of the two rails, the inner support frame is arranged between the two rails, and at least two groups of rolling structures are symmetrically arranged on both sides of the rails, at least one group of the rolling structures is fixedly installed on the fixed part and the rotating part, and at least two groups of rolling structures are fixed on the inner support frame.

3. A rail laying device according to claim 2, characterized in that: The inner support frame includes two inner support rods, rod one and rod two, the rod one and rod two rotate relatively, the two inner support rods are respectively fixed on rod one and rod two, the rod one is fixedly connected to the frame, and the rolling structure is fixed at both ends of the inner support rods.

4. A rail laying device according to claim 1 or 3, characterized in that: The rolling structure comprises an axle frame, and three groups of pressing wheels are movably connected to the axle frame.

5. A rail laying device according to claim 3, characterized in that: The sides of the rotating part and the fixed part are each provided with a plurality of first threaded holes, the shaft frame on the rolling structure is threadedly connected to the first threaded hole via a first bolt, and a plurality of second threaded holes are also matchedly provided on the rod member 1 and the rod member 2, and the inner support rod is connected to the rod member 1 and the rod member 2 via a second bolt passing through the second threaded hole.

6. A rail laying device according to claim 1, characterized in that: The guide rail structure includes two sets of concentric arc guide rails, the inner arc guide rail and the outer arc guide rail are fixedly connected by a plurality of connecting rods, the arc guide rail is provided with an arc guide groove, the rotating member is fixedly connected with a slider, and when the rotating member rotates relative to the fixed member, the slider slides along the arc guide groove.

7. A rail laying device according to claim 6, characterized in that: The cross section of the circular arc guide groove is a T-shaped structure, and the sliding block is also a T-shaped block.

8. A rail laying device according to claim 6, characterized in that: A servo motor is fixedly mounted on the rotating member, a driving gear is fixedly connected to the driving shaft of the servo motor, an outer side surface of the outer arc guide rail is provided with arc teeth, and the driving gear meshes with the arc teeth.

9. The rail laying device according to claim 1, characterized in that: The rotating member and the fixed member are both rod-shaped structures. A rotating shaft is fixedly connected to the rotating member. The rotating shaft is movably connected to the fixed member. The rotating shaft is cocentrically arranged with the circular arc guide rail, and the angle sensor is mounted on the rotating shaft.

Images