A track starting device and its automatic alignment method

Abstract

A kind of lifting and pulling track device, including two sets of symmetrical lifting and pulling track components arranged on the left and right sides of vehicle body, lifting track power device in lifting and pulling track component is fixedly connected to vehicle body, output end is connected with main mounting seat;Track power device is connected with main mounting seat;Rail clamping mechanism and band edge track wheel are all installed on main mounting seat;Centering device is installed on main mounting seat, and can be retracted in vertical direction;When lifting and pulling track component is driven along vertical direction by lifting track power driving device, centering device extends from main mounting seat, to its lowest end below rail top surface, track power device drives lifting and pulling track component to move horizontally, when centering device is close to or aligned with rail, band edge track wheel is just located above rail.A kind of lifting and pulling track device and its automatic alignment method solve the problem that lifting and pulling track device needs manual auxiliary alignment, realize the rapid and accurate alignment of lifting and pulling track device, improve work efficiency, and the automation level is high.

Description

Technical Field

[0001] This invention relates to the field of railway maintenance technology, and in particular to a track lifting and aligning device and its automatic alignment method. Background Technology

[0002] During railway operation, the track's geometric dimensions undergo subtle changes due to the repeated application of various alternating loads over a long period. This leads to deviations in direction, lateral level, and longitudinal elevation, which in severe cases can even endanger train safety. Dynamic loads from locomotives and rolling stock, along with other environmental factors, cause the granular ballast bed, composed of crushed stone, to gradually harden and lose elasticity, resulting in deterioration of track smoothness and increased residual deformation. In such circumstances, to restore the track to its normal condition and ensure the safe and stable operation of trains, comprehensive track maintenance work must be carried out, primarily using track lifting and tamping.

[0003] As a core component of tamping machines, the performance of the track lifting and aligning device directly affects the quality and efficiency of the operation. However, current track lifting and aligning devices require manual assistance for alignment before actual operation; specifically, the flanged track rollers of the device must be manually placed precisely on the rail. This manual intervention not only increases the complexity of the operation but also significantly reduces the level of automation, thus negatively impacting overall operational efficiency. Therefore, there is an urgent need to research a track lifting and aligning device capable of automatically aligning the device with the rail, reducing manual intervention, improving operational efficiency, and further enhancing the automation and intelligence of railway maintenance operations, providing stronger technical support for the safety and efficiency of railway transportation. Summary of the Invention

[0004] This invention provides a track-setting device and its automatic alignment method to solve at least one of the aforementioned technical problems. The invention provides a track-setting device, its alignment device, and its automatic alignment method, solving the technical problem of requiring manual alignment assistance during the track-setting device's deployment and retraction process. It achieves rapid and accurate alignment and deployment of the track-setting device, significantly improving operational efficiency and exhibiting a high level of automation.

[0005] A track-starting device, comprising: Two sets of lifting and shifting assemblies symmetrically arranged on the left and right sides of the tamping machine body, the lifting and shifting assemblies comprising: Main mounting base, The track-starting power unit is fixedly connected to the vehicle body, and its output end is connected to the main mounting base, which can drive the main mounting base to reciprocate along the vertical direction. A track-shifting power unit is connected to the main mounting base and is capable of driving the main mounting base to reciprocate along the horizontal direction; A rail clamping mechanism, which is mounted on the main mounting base, clamps or releases the rail; An edged track roller, mounted on the bottom of the main mounting base, is configured to contact the rail and apply a lateral force during track shifting; it also includes... The centering device is mounted on the main mounting base and is capable of extending and retracting vertically relative to the main mounting base; When the track-setting assembly moves vertically under the drive of the track-setting power drive device, the centering device extends out of the main mounting base. When the bottom of the centering device is lower than the top surface of the rail, the track-setting power device drives the track-setting assembly to move horizontally. When the centering device is close to or aligned with the rail, the flanged track-setting wheel is located directly above the rail.

[0006] In one embodiment, the centering device includes: The centering device mounting base is fixedly mounted on the main mounting base; The probe rod is movably connected to the mounting base of the centering device. A probe drive device, mounted on the centering device mounting base, has its output end connected to the probe and drives the probe to extend and retract vertically; and A rail alignment detection switch is set in conjunction with the probe rod and detects whether the probe rod is close to or aligned with the rail.

[0007] In one embodiment, the probe is provided with a guide mechanism, which guides the probe to extend and retract along a predetermined route.

[0008] In one embodiment, the guiding mechanism includes a guide screw and a guide cylinder; the guide cylinder is fixedly installed in the centering device mounting base and has a guide groove along its axial direction; the guide screw is fixedly installed on the probe rod and passes through the guide groove, and can slide in the guide groove along its extension direction to guide the movement trajectory of the probe rod.

[0009] In one embodiment, the rail alignment detection switch is connected to the top of the probe rod via a detection switch mounting plate, so that the rail alignment detection switch can move in conjunction with the probe rod.

[0010] In one embodiment, the main mounting base is provided with at least two sets of the centering devices, and a plurality of the centering devices are arranged on the same side of the main mounting base.

[0011] In one embodiment, a hovering position detection switch is also included, which is installed on the vehicle body or main mounting base and is used to monitor whether the starting and shifting assembly has moved to a preset hovering position.

[0012] In one embodiment, when the probe moves vertically downward to its lowest position, its bottom end is located below the lowest point of the rimmed guide wheel.

[0013] An automatic alignment method for a track-setting device includes the following steps: Place the track lifting and shifting device on the track rail to be lifted and shifted. Start the track-lifting power unit and probe drive unit, lower the track-lifting device to the preset hovering position, and drive the probe to extend vertically downwards outwards from the centering device mounting base; Start the track lifting power device and track shifting power device, lower the track lifting and shifting device and move it to the second preset position outside the rail; Start the track shifting power device; drive the track shifting device to move closer to the rail until the rail detection switch sends a signal that the rail has been reached. Start the probe drive device to drive the probe to retract vertically upwards into the centering device mounting base; The flanged guide wheel is placed on the rail.

[0014] In one embodiment, the height of the preset hovering position is a position where the distance between the bottom surface of the rimmed guide wheel and the top surface of the rail is 5 to 10 cm.

[0015] Compared with existing technologies, the present invention has the following advantages: By setting a centering device, which can extend and retract vertically relative to the main mounting base, during automatic alignment, the centering device can extend vertically out of the main mounting base. When the track-setting device descends to the point where its lowest point is below the top surface of the rail, the track-setting power device drives the track-setting device to approach the rail horizontally. When the centering device is close to or aligned with the rail, the track-setting wheel is precisely positioned above the rail. At this point, the track-setting device is lowered, and the track-setting wheel is precisely locked onto the rail, achieving automatic alignment of the track-setting device. This solves the problem of needing manual intervention to place the track-setting wheel on the rail, significantly improving the automation level and operational efficiency of track-setting operations. Simultaneously, the centering device combines the lifting and shifting power units to adjust the position of the main mounting base in the vertical and horizontal directions, achieving synchronous position adjustment of the centering device. This eliminates the need for separate vertical and horizontal power units for the centering device, reducing the required power unit configuration and enabling precise alignment of the centering device with the rails. This simplifies the structure of the centering device, reduces the number of parts, and effectively lowers costs. The lifting and shifting device and its automatic alignment method provided by this invention solve the technical problem of relying on manual alignment during the lifting and shifting process. It achieves rapid and accurate alignment and shifting of the device, significantly reducing the need for manual intervention, greatly improving overall operational efficiency, and exhibiting a high level of automation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the tamping machine of the present invention; Figure 2 This is a three-dimensional structural diagram of the starting guide of the present invention; Figure 3 This is a left view of the starting guide of the present invention; Figure 4 This is a top view of the starting guide rail of the present invention; Figure 5 This is a rear view of the centering device of the present invention; Figure 6 This is an internal structural diagram of the final device of the present invention.

[0018] Reference numerals: 1. Tamping car; 11. Car body; 2. Tamping device; 3. Track lifting and shifting assembly; 31. Centering device; 311. Centering device mounting base; 312. Probe; 313. Hinge joint; 314. Probe drive device; 315. Guide mechanism; 3151. Guide screw; 3152. Guide cylinder; 31521. Guide groove; 316. Rail alignment detection switch; 317. Detection switch mounting plate; 32. Rail clamping mechanism; 34. Track lifting power unit; 35. Track shifting power unit; 36. Main mounting base; 37. Flanged track shifting wheel; 38. Hovering position detection switch; 39. Monitoring switch mounting plate; 4. Rail; 5. Bogie. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., appearing in the description of this invention are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Example 1 It should be noted that this invention provides a track-lifting and aligning device, the main function of which is to adjust and repair the track, thereby ensuring the smoothness and stability of the railway line. It can perform precise automatic alignment of the track, ensuring that the flanged track-lifting wheels on the device can accurately land on the rails, thus improving the level of intelligence and increasing construction efficiency.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, typically, the track jacking assembly 3 is mounted on the tamping car 1, a specialized engineering vehicle used for railway maintenance. The tamping car 1 has a bogie 5 at its front end, and a tamping device 2 at its rear end. The tamping device 2 is primarily used to compact the track bed, thereby enhancing the track's stability and load-bearing capacity. The track jacking assembly 3 is located at the rear end of the tamping device 2 to work in conjunction with it, enabling efficient adjustment and repair of the track. This layout allows the entire system to more efficiently complete railway line maintenance tasks, thus improving construction quality and efficiency.

[0027] like Figure 4 As shown, a track-raising and aligning device includes two sets of track-raising and aligning assemblies 3 symmetrically arranged on the left and right sides of the body 11 of the tamping machine 1. Each track-raising and aligning assembly 3 includes a main mounting base 36, a track-raising power device 34, a track-aligning power device 35, a rail clamping mechanism 32, a flanged track-aligning wheel 37, and a centering device 31. One end of the track-raising power device 34 is fixed to the body 11, and its output end is connected to the main mounting base 36, driving the main mounting base 36 to reciprocate vertically. The output end of the track-aligning power device 35 is connected to the main mounting base 36, and its other end is connected to a track-aligning power device 35 symmetrically arranged on the other side, driving the main mounting base 36 to reciprocate horizontally. Specifically, the symmetrically arranged track-aligning power devices 35 drive the main mounting base 36 to move closer to or further away from the centerline of the tamping machine 1. The rail clamping mechanism 32 is mounted on the main mounting base 36 and clamps or releases the rail 4. Specifically, two sets of rail clamping mechanisms 32 are provided, and both sets of rail clamping mechanisms 32 are mounted on the front and rear sides of the main mounting base 36. The flanged track-shifting wheel 37 is mounted on the bottom of the main mounting base 36, contacts the rail 4 during track shifting, and applies a lateral force under the drive of the track-shifting power device 35. The centering device 31 is mounted on the main mounting base 36 of the track-shifting assembly 3 and can extend and retract vertically relative to the main mounting base 36.

[0028] When the track-setting assembly (3) moves vertically under the drive of the track-setting power drive device (34), the centering device 31 extends out of the main mounting base 36. When the bottom of the centering device 31 is lower than the top surface of the rail 4, the track-setting power device 35 drives the track-setting assembly 3 to move horizontally. When the centering device is close to or aligned with the rail 4, the flanged track-setting wheel 37 is located directly above the rail 4.

[0029] By mounting the centering device 31 on the main mounting base, the synchronous movement of the track lifting and shifting assembly 35 and the centering device 31 can be achieved through the joint drive of the track lifting power drive device 34 and the track shifting power device 35. There is no need to set up separate vertical and horizontal power devices for the centering device 31, which reduces the configuration of power devices and effectively reduces production costs.

[0030] like Figure 5 and Figure 6 As shown, in some implementations, the centering device 31 includes a centering device mounting base 311, a probe 312, a probe drive device 314, and a rail alignment detection switch 316. The centering device mounting base 311 is fixedly mounted on the main mounting base 36, providing a stable support foundation for the centering device. The probe 312 is movably connected to the centering device mounting base 311. The top end of the probe 312 is connected to the output end of the probe drive device 314, and under the drive of the probe drive device 314, the probe 312 can reciprocate (telescopically extend) within the centering device mounting base 311 in the vertical direction. The rail alignment detection switch 316 is mounted on the probe 312 via a detection switch mounting plate 317 and can move in conjunction with the probe 312 under the drive of the probe drive device 314. The rail alignment detection switch 316 detects whether the probe 312 is close to or accurately aligned with the rail 4. Preferably, the bottom surface of the detection switch mounting plate 317 is flush with the bottom surface of the probe rod 312. The rail contact detection switch 316 is located at the lower end of the detection switch mounting plate 317, so that when the probe rod 312 is close to the rail 4, the rail contact detection switch 316 can detect it in a timely and accurate manner, thereby ensuring that the probe rod 312 can reliably close to or accurately align with the rail 4, and thus ensuring the normal operation and working accuracy of the entire track lifting and shifting device.

[0031] In some implementations, such as Figure 6 As shown, the top end of the detection switch mounting plate 317 is fixedly connected to the top end of the probe rod 312, and the output end of the probe rod drive device 314 is connected to the top end of the probe rod 312. When the probe rod drive device 314 drives the probe rod 312 to reciprocate, it will synchronously drive the rail-aligning detection switch 316 mounted on the detection switch mounting plate 317 to reciprocate as well. That is, the probe rod and the rail-aligning detection switch extend synchronously from the centering device mounting seat, so that the bottom of the probe rod is lower than the top surface of the rail.

[0032] In some implementations, the probe drive device 314 is not limited and can be a telescopic cylinder, electric push rod, motor, hydraulic cylinder, etc. In the track lifting device, a telescopic cylinder is preferred. The probe drive device 314 and the probe 312 are connected by a hinge joint 313, which can effectively compensate for installation deviations and angular offsets during movement, avoid jamming or wear caused by lateral forces, and improve the stability and reliability of system operation.

[0033] In some implementations, the probe rod 312 is provided with a guide mechanism 315, which guides the probe rod 312 to reciprocate along a predetermined path. The specific structure of the guide mechanism 315 is not limited; it can be implemented by a slider and a slide rail, or by a guide groove and a protrusion.

[0034] In this embodiment, the guiding mechanism 315 includes a guide screw 3151 and a guide cylinder 3152. The guide cylinder 3152 is fixedly installed in the centering device mounting base 311 and has a guide groove 31521 along its axial direction. The guide screw 3151 is fixedly installed on the probe rod 312 and passes through the guide groove 31521, and can slide in the guide groove 31521 along its extension direction to guide the movement trajectory of the probe rod 312. At the same time, the guide groove 31521 can limit the movement range of the probe rod 312.

[0035] In some implementations, at least two rail-alignment detection switches 316 are provided, and they are distributed at a certain interval along the axial direction of the probe rod 312. The specific structural form of the rail-alignment detection switches 316 is not limited, and they can be proximity switches, position sensors, etc.

[0036] In some implementations, the main mounting base 36 is provided with at least two sets of the centering devices 31, and multiple centering devices 31 are arranged on the same side of the main mounting base 36, so that the flanged track roller 37 can be accurately parked on the rail head.

[0037] In some implementations, a hovering position detection switch 38 is also included. This hovering position detection switch 38 is mounted on the vehicle body 11 or the main mounting base 36 and is used to detect whether the guide rail assembly 3 has moved to a preset hovering position. When the guide rail assembly 3 moves to the preset hovering position, the hovering position detection switch 38 sends a corresponding signal to the controller, which then controls the guide rail drive device to stop driving based on this signal. The structure of the hovering position detection switch 38 is not limited, as long as it can monitor the preset hovering position; it can be a proximity switch, sensor, etc. In this embodiment, the hovering position detection switch 38 is mounted on a hovering detection switch plate 39, which is mounted on the vehicle body 11.

[0038] In some implementations, the rail clamping mechanism 32 is located on the front and rear sides of the main mounting base 36. The rail clamping mechanism 32 includes clamps and a clamp driving mechanism. The clamps can be clamped on the left and right sides of the rail 4 by the drive of the clamp driving mechanism to clamp or release the rail 4. When it is necessary to lift the track, the clamp driving mechanism drives the clamps to clamp the rail 4. At the same time, the track lifting power device 34 drives the main mounting base 36 to rise in the vertical direction, thereby raising the rail 4.

[0039] In some implementations, when the probe rod 312 moves vertically downward to its lowest position, its bottom end is located below the lowest point of the flanged guide wheel 37. That is, since the flanged guide wheel 37 has not yet stopped on the rail 4, the bottom end of the probe rod 312 is lower than the lowest point of the flanged guide wheel 37. At this time, the probe rod 312 can be pressed against the side wall of the rail 4 to achieve the alignment of the guide wheel assembly 3, so that the flanged guide wheel 37 can accurately stop on the rail head of the rail 4.

[0040] In some implementations, at least two flanged guide wheels 37 are provided, and multiple flanged guide wheels 37 are arranged at the front and rear ends of the centering device 31 or are distributed at intervals with the centering device 31. Specifically, the interval distribution means that one flanged guide wheel 37 is arranged between every two centering devices 31, and one centering device 31 is arranged between every two flanged guide wheels 37. This ensures precise alignment of each position of the rail 4 and ensures that each flanged guide wheel 37 can accurately land on the rail head of the rail 4.

[0041] In some implementations, the track-lifting power device 34 and the track-shifting power device 35 are not limited and can be hydraulic cylinders, electric push rods, motors, etc. In the track-lifting and shifting device, hydraulic cylinders are preferred.

[0042] In some implementations, the tamping machine 1 is equipped with a controller. The rail contact detection switch 316, probe drive device 314, track lifting power device 34, track shifting power device 35, and hovering position detection switch are all connected to the controller. The controller can receive information from the rail contact detection switch 316 and the hovering position detection switch, and control the corresponding related devices to perform actions based on the relevant information to achieve automated control.

[0043] The probe 312 extends from the centering device mounting base 311. When the probe 312 extends from the centering device mounting base 311, the lowest point of the probe 312 is at the bottom of the track-setting device. Driven by the track-setting power drive device 34, the track-setting assembly 3 moves vertically downwards to the preset hovering position set by the hovering position detection switch 316. At this point, the bottom of the probe 312 will be lower than the top of the rail 4. This ensures that, driven by the track-setting power device 35, the probe 312 can accurately approach or align with the rail 4, thereby achieving automatic alignment of the track-setting device. At this time, the waiting track-setting wheel 37 below can accurately land on the rail 4 without any deviation. Example 2 It should be noted that the present invention provides an automatic alignment method for a track-setting device, and in this embodiment, the track-setting device in Embodiment 1 is used.

[0044] An automatic alignment method for a track-setting device includes the following steps: S1: Place the track lifting and shifting device on the track rail to be lifted and shifted; In actual operation, the tamping machine 1 is driven onto the track rails where track lifting and shifting operations are to be performed, and then parked on the rails of the section requiring maintenance.

[0045] S2: Start the track-lifting power device and probe drive device, lower the track-lifting device to the preset hovering position, and drive the probe to extend downward along the vertical direction to the outside of the centering device mounting base; The track-lifting power unit 34 and the probe drive unit 314 are activated. The track-lifting power unit 34 drives the main mounting base 36 and the mechanism mounted on it to move downwards. Simultaneously, the probe drive unit 314 drives the probe 312 to move downwards and extend out of the centering device mounting base 311, so that the bottom end of the probe 312 extends to the outside of the centering device mounting base, so that the subsequent probe can detect the rail 4. When the main mounting base 36 descends to the preset hovering position under the drive of the track-lifting power unit 34, the hovering position detection switch 38 will detect that the preset position has been reached and send a signal to the controller. The controller then controls the probe drive unit 314 to stop operating. The preset hovering position is the distance between the bottom surface of the flanged track wheel 37 and the top surface of the rail, which is 5 to 10 cm.

[0046] S3: Start the track lifting power device and track shifting power device, lower the track lifting and shifting device and move it to the second preset position outside the rail; The track-lifting power device 34 and the track-shifting power device 35 are restarted. The track-lifting power device 34 further drives the main mounting base 36 to descend. At the same time, the track-shifting power device 35 drives the main mounting base 36 to move outward of the track. When the main mounting base 36 reaches the second preset position, the track-lifting power device 34 and the track-shifting power device 35 stop operating. At this time, the lowest point of the probe 312 is lower than the top surface of the rail 4. The probe 312 is located on the outside of the rail 4 and is in contact with the rail 4. That is, the probe 312 is at a certain distance from the outside of the rail 4. This distance is not limited, but is preferably 5 to 15 cm.

[0047] S4: Start the track shifting power device; drive the track shifting device to move closer to the rail until the rail detection switch sends a signal that the rail has been reached. Start the track shifting power device 35, which drives the main mounting base 36 to move to one side of the track until the probe 312 contacts the rail 4. At this time, the rail contact detection switch 316 detects the rail contact signal and sends a corresponding signal to the controller, which then controls the track shifting power device 35 to stop operating.

[0048] S5: Start the probe drive device to drive the probe to retract vertically upwards into the centering device mounting base; The probe drive device 314 is activated, and the probe drive device 314 drives the probe to retract vertically upward into the centering device mounting base, that is, the lowest point of the probe 312 is accommodated in the centering device mounting base 311.

[0049] S6: Place the flanged guide wheel onto the rail.

[0050] The track-lifting power device 34 is restarted, driving the main mounting base 36 to descend, allowing the flanged track-shifting wheel to land on the rail, completing the alignment operation. After alignment, track-lifting and / or track-shifting operations can be performed on the rail. During track-lifting, the clamp drive mechanism is activated, causing the clamps to grip the rail 4. Then, the track-lifting power device 34 is activated, lifting the rail 4 upwards. During track-shifting, the track-shifting power device 35 is activated, driving the flanged track-shifting wheel to exert force on the rail 4, causing the rail 4 to move inwards or outwards, achieving lateral movement of the rail 4.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A track-setting device, characterized in that, include: Two sets of screeding assemblies (3) are symmetrically arranged on the left and right sides of the body (11) of the tamping machine (1). The screeding assemblies (3) include: Main mounting base (36). The track-starting power unit (34) is fixedly connected to the vehicle body (11), and its output end is connected to the main mounting base (36), and it can drive the main mounting base (36) to reciprocate along the vertical direction; A track-shifting power unit (35) is connected to the main mounting base (36) and is capable of driving the main mounting base (36) to reciprocate along the horizontal direction; The rail clamping mechanism (32) is mounted on the main mounting base (36) and clamps or releases the rail (4); An edged track roller (37), mounted on the bottom of the main mounting base (36), is configured to contact the rail (4) and apply a lateral force during track shifting; it also includes... The centering device (31) is mounted on the main mounting base (36) and is capable of extending and retracting in the vertical direction relative to the main mounting base (36); When the track-setting assembly (3) moves vertically under the drive of the track-setting power drive device (34), the centering device (31) extends out of the main mounting base (36). When the bottom of the centering device (31) is lower than the top surface of the rail (4), the track-setting power device (35) drives the track-setting assembly (3) to move horizontally. When the centering device is close to or aligned with the rail (4), the flanged track-setting wheel (37) is located directly above the rail (4).

2. The track-setting device according to claim 1, characterized in that, The centering device (31) includes: The centering device mounting base (311) is fixedly mounted on the main mounting base (36); Probe (312); which is movably connected to the centering device mounting base (311); A probe drive device (314), mounted on the centering device mounting base (311), has its output end connected to the probe (312) and drives the probe (312) to extend and retract vertically; and A rail-alignment detection switch (316) is linked to the probe (312) and detects whether the probe (312) is close to or aligned with the rail (4).

3. The track-setting device according to claim 2, characterized in that, The probe rod (312) is provided with a guide mechanism (315), which guides the probe rod (312) to extend and retract along a predetermined route.

4. The track-setting device according to claim 3, characterized in that, The guiding mechanism (315) includes a guide screw (3151) and a guide cylinder (3152); the guide cylinder (3152) is fixedly installed in the centering device mounting base (311) and has a guide groove (31521) along its axial direction; the guide screw (3151) is fixedly installed on the probe rod (312) and passes through the guide groove (31521), and can slide in the guide groove (31521) along its extension direction to guide the movement trajectory of the probe rod (312).

5. The track-setting device according to claim 2, characterized in that, The rail-alignment detection switch (316) is connected to the top of the probe rod (312) via a detection switch mounting plate (317), so that the rail-alignment detection switch (316) can move in conjunction with the probe rod (312).

6. The track-setting device according to claim 2, characterized in that, The main mounting base (36) is provided with at least two sets of the centering devices (31), and multiple centering devices (31) are arranged on the same side of the main mounting base (36).

7. The track-setting device according to claim 2, characterized in that, It also includes a hover position detection switch (38), which is installed on the vehicle body (11) or the main mounting base (36) to monitor whether the starting and shifting assembly (3) has moved to a preset hover position.

8. The track-setting device according to claim 2, characterized in that, When the probe (312) moves vertically downward to the lowest position, its bottom end is located below the lowest point of the rimmed guide wheel (37).

9. An automatic alignment method for a track-setting device, characterized in that, Includes the following steps: Place the track lifting and shifting device on the track rail to be lifted and shifted. Start the track-lifting power unit and probe drive unit, lower the track-lifting device to the preset hovering position, and drive the probe to extend vertically downwards outwards from the centering device mounting base; Start the track lifting power device and track shifting power device, lower the track lifting and shifting device and move it to the second preset position outside the rail; Start the track shifting power device; drive the track shifting device to move closer to the rail until the rail detection switch sends a signal that the rail has been reached. Start the probe drive device to drive the probe to retract vertically upwards into the centering device mounting base; The flanged guide wheel is placed on the rail.

10. The automatic alignment method for the track-setting device according to claim 9, characterized in that, The preset hovering position is located at a height of 5 to 10 cm between the bottom surface of the rimmed guide wheel and the top surface of the rail.

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