Method for ballastless track bearing platform polishing operation

Abstract

The embodiment of the application provides a ballastless track bearing platform polishing operation method, polishing demand data information of the bearing platform is acquired to obtain total polishing amount D of the bearing platform; the total polishing amount is decomposed according to single polishing depth capacity d of a polishing device, N=D / d, wherein N is polishing times; the single polishing depth capacity d of the polishing device, the polishing times N and the total polishing amount D are processed to establish a preset polishing program; the polishing device sequentially polishes each pair of bearing platforms in layers according to the preset polishing program, each layer is arranged in pairs and includes at least three pairs of bearing platforms. The technical scheme provided by the application can simultaneously polish three sleepers and more sleepers, can realize automatic control in the polishing process, reduces manual intervention and improves polishing efficiency.

Description

Technical Field

[0001] This application relates to track maintenance machinery control technology, and in particular to a method for grinding ballastless track bearing platforms. Background Technology

[0002] Currently, with the increasing mileage and operational time of ballastless high-speed railway lines in my country, the demand for routine maintenance and repair of ballastless track lines is extremely urgent. To ensure the normal and safe operation of high-speed trains, the Track Quality Index (TQI) requirements are becoming increasingly stringent. An excessively high TQI value is highly detrimental to high-speed train safety. Settlement or arching of the roadbed will affect the TQI value, and maintenance and repair to restore the TQI value after changes are necessary to ensure high-speed train safety.

[0003] For minor settlement and camber changes in the track quality index (TMI) of ballastless track, adjustments to the rail fastening system can restore the TMI and ensure operational safety. However, for sections with significant camber exceeding the adjustment range of the rail fastening system, alternative methods include dismantling and rebuilding the track bed slabs and subgrade beneath the sleepers, or re-grinding and repairing the rail piers to ensure they meet the track quality requirements for high-speed train operation. Rail pier grinding and repair demands high contour accuracy, which manual grinding cannot achieve; therefore, mechanized contour grinding is the necessary choice.

[0004] Currently, there is no mature control system or method for grinding track bearing platforms. This application proposes a control method for simultaneously grinding three or more sleepers using a grinding device for ballastless track bearing platforms. This method enables automatic control of the grinding process, reduces manual intervention, and improves grinding efficiency.

[0005] In view of the above, this application is hereby submitted. Summary of the Invention

[0006] To address one of the aforementioned technical deficiencies, this application provides a method for grinding a ballastless track support platform.

[0007] According to a first aspect of the embodiments of this application, a method for grinding a ballastless track support platform is provided, comprising:

[0008] Obtain the data information of the rail support platform to obtain the total grinding amount D of the rail support platform;

[0009] Based on the single-pass grinding depth capability d of the grinding device, the total grinding amount is decomposed into N=D / d, where N is the number of grinding passes;

[0010] The single-pass grinding depth capability d, the number of grinding passes N, and the total grinding amount D of the grinding device are processed to establish a preset grinding program;

[0011] The grinding device grinds each pair of rail supports in layers according to a preset grinding program. Each layer of rail supports is set in pairs, including at least three pairs of rail supports.

[0012] The technical solution provided in this application obtains the data information of the rail support platform to get the total grinding amount D of the rail support platform; according to the single grinding depth capability d of the grinding device, the total grinding amount is decomposed into N=D / d, where N is the number of grinding times; the single grinding depth capability d, the number of grinding times N, and the total grinding amount D of the grinding device are processed to establish a preset grinding program; the grinding device grinds each pair of rail support platforms layer by layer according to the preset grinding program, with each layer of rail support platforms arranged in pairs, including at least two pairs of rail support platforms. The technical solution provided in this application allows for the simultaneous grinding of three or more rail sleepers, enabling automatic control of the grinding process, reducing manual intervention, and improving grinding efficiency. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 A flowchart illustrating the grinding operation method for the ballastless track support platform provided in this application embodiment;

[0015] Figure 2 A schematic diagram showing the working direction of the grinding device and the rail support table is provided for the embodiments of this application;

[0016] Figure 3 This is a schematic diagram of the grinding operation path for the ballastless track support platform provided in an embodiment of this application;

[0017] Figure 4 This is a flowchart of the grinding process of the grinding device in this application.

[0018] in,

[0019] 1. Grinding wheel; 2. First grinding path; 3. Second grinding path; 4. Third grinding path; 5. First pair of sleepers; 6. Second pair of sleepers; 7. Third pair of sleepers. Detailed Implementation

[0020] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] Example 1

[0022] This embodiment provides a method for grinding a ballastless track support platform. In practical applications, this method can be implemented by a computer program, such as application software; or, the method can also be implemented by a medium storing the relevant computer program, such as a USB flash drive or cloud storage; or, the method can also be implemented by a physical device that integrates or installs the relevant computer program, such as a chip or a portable smart device.

[0023] like Figure 1 and Figure 2 As shown, this application provides a method for grinding a ballastless track support platform, including:

[0024] Step 101: Obtain the data information of the rail support platform to obtain the total grinding amount D of the rail support platform;

[0025] The data information for the rail support platform can be established in advance based on the actual data of the rail support platform, or commonly used rail support platform data can be directly used.

[0026] In practice, the total grinding amount D of the rail support platform can be any value from 0 to 40 mm or above.

[0027] Step 102: Based on the single-pass grinding depth capability d of the grinding device, decompose the total grinding amount into N=D / d, where N is the number of grinding passes;

[0028] Specifically, by decomposing the total grinding amount D for each rail support platform, and based on the single grinding depth capability d of the grinding device, the total grinding amount is decomposed into N single grinding operations, where N = D / d, and the final grinding amount is dn ≤ D / N.

[0029] Step 103: Process the single grinding depth capacity d, the number of grinding times N, and the total grinding amount D of the grinding device to establish a preset grinding program;

[0030] Step 104: The grinding device grinds each layer of the support platform in sequence according to the preset grinding program.

[0031] In practice, the grinding device performs grinding operations on the rail support platform according to the grinding path of the rail support platform. It is divided into the first layer d1 grinding three sleepers. After each sleeper is ground, the Z direction is raised by h1, and the idle stroke is b distance. When the idle stroke is on, the X direction moving speed is increased. When there is a cutting depth, the X direction moving speed is the working speed. The second layer d2 grinding three sleepers, the third layer d3 grinding three sleepers, ..., the nth layer dn grinding three sleepers.

[0032] After grinding three or more pairs of rail supports, when the grinding depth reaches D=d1+d2+d3+...+dn, the grinding head returns to its starting point.

[0033] As a specific implementation method, before grinding the rail support platform of each sleeper in sequence according to the preset grinding program, the position of the grinding device and the rail support platform is adjusted along the X, Y and Z directions.

[0034] Specifically, adjusting the position of the grinding device and the support platform along the X, Y, and Z directions includes:

[0035] (1) Along the X direction, the grinding device is self-propelled and positioned;

[0036] (2) Adjust the position along the Y direction to align the alignment shoe with the outer contour of the bearing platform;

[0037] (3) Adjust the position along the Z direction so that the grinding wheel of the grinding device is aligned with the inner contour of the support table;

[0038] (4) Adjust the position along the Y and Z directions so that the grinding wheel of the grinding device adapts to the bottom slope of the rail.

[0039] As one specific implementation method, the track support platform for each pair of sleepers is ground, followed by:

[0040] The grinding wheel of the grinding device is raised to the tool setting position, and the rapid movement stroke b is moved to the grinding starting point of the support platform of the next sleeper.

[0041] As a specific implementation method, the rail bearing platform of each pair of sleepers is ground, including:

[0042] For each pair of sleepers, the two rail bearing platforms are ground with the first cut to a depth of d. After the first cut is completed, d is raised and the sleeper returns to the starting point of the first sleeper. Then the second cut is made, and the process is repeated to complete the total grinding of the two rail bearing platforms of the sleeper.

[0043] Furthermore, as a specific implementation method, the final grinding amount of the grinding device is dn≤D / N.

[0044] Furthermore, as a specific implementation method, N=D / d, and when there is a remainder after division, polishing is performed according to the remainder.

[0045] As one specific implementation, the position is adjusted along the Z direction to align the grinding wheel of the grinding device with the inner contour of the support table; including:

[0046] (1) Adjust the vertical position of the grinding wheel along the Z direction so that the outline of the grinding wheel fits into the support table;

[0047] (2) Adjust the rotation of the grinding wheel head to eliminate the gap between the grinding wheel and the contour of the support table, so that the grinding wheel is completely aligned with the inner contour of the support table, and complete the tool setting.

[0048] In specific implementation, as one particular method, the grinding device is placed on the adjacent track slab of the section with the arching defect to perform grinding operations on the track support platform of the section with the arching defect.

[0049] As a specific implementation method, this application provides a method for grinding the ballastless track bearing platform. In practice, a ballastless track bearing platform grinding vehicle can enter the construction section of the arch defect from the adjacent line, park near the construction section, and the vehicle is equipped with a bearing platform grinding device. The mechanical mechanism set on the vehicle places the grinding device on the adjacent track plate to start the bearing platform grinding operation.

[0050] like Figure 3 and Figure 4 As shown, the specific construction method is as follows:

[0051] (1) The grinding device is suspended on the ballastless track slab, with four traveling wheels resting on the edge of the track slab. The accuracy of the traveling wheels' placement is manually checked. In practice, the guiding and clamping devices of the grinding device are quickly installed to prevent the device from derailing, and the hydraulic lines are manually connected. The guiding and clamping devices use a quick-connect method, which allows for rapid assembly and disassembly. The grinding device is positioned, and if it reaches the marked line, the next step is to align the shoe and the support platform; if it does not reach the marked line, the grinding device positioning is repeated.

[0052] (2) Position the shoe and the rail support platform and lift it by a distance H;

[0053] Specifically, the position is adjusted along the X direction. According to the requirements of the rail support table to be ground, the grinding device is remotely operated to move to the work position that needs to be ground, and the front and rear alignment shoes are aligned with the position of the rail support table.

[0054] Adjust the position along the Y direction, align the alignment device with the outer arc of the support plate shoulder, and lift and align the grinding device.

[0055] Specifically, if the alignment is not satisfactory, the lifting and alignment can be repeated. After the lifting and alignment is completed, the clamping cylinder of the clamping device can be operated to hold the track plate tightly.

[0056] (3) Align the grinding wheel with the inner contour of the support platform during the cutting process.

[0057] Specifically, the grinding wheel mechanism is remotely or mechanically operated to adjust the track movement mechanism along the X direction, so that the grinding wheel moves to the starting position above the track support table to be ground;

[0058] The grinding wheel mechanism can be remotely or mechanically operated to adjust the lateral movement mechanism of the grinding wheel along the Y direction, so that the two "inverted V" inclined surfaces of the grinding wheel are aligned with the "inverted V" inclined surfaces of the support table;

[0059] The grinding wheel mechanism can be remotely or mechanically operated to adjust the grinding wheel along the Z direction so that the profile of the grinding wheel fits into the support table.

[0060] In practice, to eliminate the gap between the grinding wheel and the rail support platform's contour and ensure that the grinding wheel perfectly matches the inner contour of the rail support platform, the grinding wheel head is rotated via remote control or mechanical operation to complete the tool setting. After tool setting, the hydraulic system is used to clamp the grinding mechanism, ensuring that the rail base slope angle does not change. At this point, tool setting is complete, and the system memorizes the coordinate values.

[0061] (4) Confirm the tool setting position along the X direction, the Y direction, and the Z direction. Then, operate the grinding head to return to the origin. The grinding wheel is raised by H distance in the Z direction and moved back by a distance in the X direction, and then lowered to the tool setting coordinates (Z value, X value, Y value).

[0062] (5) Start the No. 1 main motor for grinding. The motors are started in sequence. After the first motor starts and runs smoothly, the second main motor No. 2 starts. After a period of time (or both motors can be started at the same time), the two grinding motors can be started and stopped separately, and the grinding amount can be controlled separately.

[0063] (6) After the grinding wheel 1 rotates at high speed, the grinding wheel 1 moves to the tool setting position to start the grinding operation. According to the cutting amount d1, the No. 1 sleeper bearing platform is automatically ground. The No. 1 bearing platform is ground in N=D / d times, that is, the bearing platform of the first pair of sleepers 5 is ground. The grinding path is the first pair of sleeper grinding path 2. After the last grinding, you can choose whether to repeat the grinding of the previous trajectory to improve the grinding quality.

[0064] (7) After the No. 1 sleeper bearing platform is finished, the grinding wheel 1 is raised by h1, and the grinding wheel 1 moves quickly by b distances with no cutter until it reaches the No. 2 bearing platform for grinding. The No. 2 sleeper bearing platform is automatically ground according to the cutting amount d1. The No. 2 bearing platform is ground in N=D / d times, which is the grinding of the bearing platform of the second pair of sleepers 6. The grinding path is the grinding path 3 of the second pair of sleepers. After the last grinding, you can choose whether to repeat the grinding of the previous trajectory to improve the grinding quality.

[0065] (8) After the No. 2 sleeper bearing platform is polished, the polishing wheel 1 is raised by h1 and the polishing wheel 1 moves quickly by b distances to the No. 3 bearing platform for polishing. The No. 3 sleeper bearing platform is automatically polished according to the cutting amount d1. The No. 3 bearing platform is polished in N=D / d times, that is, the bearing platform of the third pair of sleepers 7 is polished. The polishing path is the third pair of sleeper polishing path 4. After the last polishing, you can choose whether to repeat the polishing of the previous trajectory to improve the polishing quality.

[0066] (9) The grinding head performs the grinding operation of the rail bearing platform according to the grinding path of the rail bearing platform. It is divided into the first layer d1 grinding three sleepers. After each sleeper is ground, the Z direction is raised by h1, and the idle stroke is b distance. When the idle tool is used, the X direction moving speed is increased. When there is a cutting amount, the X direction moving speed is the working speed. The second layer d2 grinding three sleepers, the third layer d3 grinding three sleepers, ..., the nth layer dn grinding three sleepers.

[0067] (10) After grinding three or more pairs of rail bearing platforms in sequence, when the grinding depth reaches D=d1+d2+d3+...+dn, the grinding head returns to the starting point;

[0068] (11) The grinding device moves to the next work position to prepare for the start of the cycle operation.

[0069] It is worth noting that the grinding device and the guiding and clamping devices in the grinding device can be implemented using existing technology, and the specific mechanism of the grinding device is not the focus or innovation of the application, so it will not be described in detail.

[0070] Based on the above, the technical solution provided in this application can address the complex working conditions encountered during the grinding of adjacent sleepers on the ballastless track bearing platform, where the grinding requirements differ, thereby improving grinding efficiency and achieving full automation of the operation. At the same time, this application can save the time spent on sleeper spacing operations, allowing limited time to be utilized for the grinding operation on the bearing platform, thus improving construction efficiency.

[0071] It is worth noting that this application is applicable to the grinding of rail bearing platforms for single-sleeper, double-sleeper, triple-sleeper, and higher-level rail sleepers. It can achieve grinding of rail bearing platforms covering three or more sleepers; it realizes automated grinding of multiple sleepers with different grinding requirements on-site, meeting complex and personalized needs and improving the grinding efficiency of rail bearing platforms. By adopting this grinding control method, the idle travel time between sleepers can be effectively shortened, grinding efficiency can be improved, and automatic control of the grinding process can be achieved.

[0072] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of this application can be implemented in various computer languages, such as C, VHDL, Verilog, the object-oriented programming language Java, and the interpreted scripting language JavaScript.

[0073] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0074] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0075] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0076] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0079] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0080] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for grinding a ballastless track support platform, characterized in that, include: Obtain the data information of the rail support platform to obtain the total grinding amount D of the rail support platform; Based on the single-pass grinding depth capability d of the grinding device, the total grinding amount is decomposed into N=D / d, where N is the number of grinding passes; The single-pass grinding depth capability d, the number of grinding passes N, and the total grinding amount D of the grinding device are processed to establish a preset grinding program; The grinding device grinds each pair of rail supports layer by layer according to a preset grinding program. Each layer of rail supports is set in pairs, including at least two pairs of rail supports. The grinding device grinds each pair of sleepers' rail supports layer by layer according to the preset grinding program, including: the grinding device performs rail support grinding operations according to the rail support grinding path; the grinding path is divided into three layers: the first layer grinds three sleepers, the second layer grinds three sleepers, the third layer grinds three sleepers, and the nth layer grinds three sleepers; after each sleeper is ground, it is lifted h1 in the Z direction, and the idle stroke is b distance; the grinding amount of the last layer of the grinding device is dn, where dn≤D / N; The grinding device grinds each pair of rail supports layer by layer according to the preset grinding program. Each layer of rail supports is set in pairs, including at least two pairs of rail supports. After grinding three or more pairs of rail supports, when the grinding depth reaches D=d1+d2+d3+...+dn, the grinding head returns to the starting point; where n is a natural number.

2. The method for grinding the ballastless track support platform according to claim 1, characterized in that, Before grinding the rail support platform of each layer of sleepers according to the preset grinding procedure, the process also includes: Adjust the position of the grinding device and the support platform along the X, Y and Z directions.

3. The method for grinding the ballastless track support platform according to claim 2, characterized in that, Adjusting the position of the grinding device and the support platform along the X, Y, and Z directions includes: Along the X direction, the grinding device is self-propelled and positioned; Adjust the position along the Y direction to align the alignment shoe with the outer contour of the bearing platform; Adjust the position along the Z direction to align the grinding wheel of the grinding device with the inner contour of the support table; Adjust the position along the Y and Z directions so that the grinding wheel of the grinding device adapts to the bottom slope of the rail.

4. The method for grinding the ballastless track support platform according to claim 3, characterized in that, Adjust the position along the Z direction to align the grinding wheel of the grinding device with the inner contour of the support table; including: Adjust the vertical position of the grinding wheel along the Z direction so that the profile of the grinding wheel fits into the support table; Adjust the rotation of the grinding wheel head to eliminate the gap between the grinding wheel and the contour of the support table, so that the grinding wheel completely matches the inner contour of the support table, and complete the tool setting.

5. The method for grinding the ballastless track support platform according to claim 1, characterized in that, Also includes: Adjacent-line operation mode is adopted, and the grinding device is placed on the track slab of the arch-damped section to grind the track support platform of the arch-damped section.

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