A CRTSⅢ type slab track slab fine-tuning device and fine-tuning method

Abstract

This invention discloses a fine-tuning device and method for CRTSⅢ type slab trackless rail, including a fine-tuning support, a traveling rail, a fine-tuning vehicle, a total station, analytical equipment, a host computer system, a PLC controller, a display, and a touch screen. The fine-tuning support is installed on the side of the track slab and includes an X-axis adjustment mechanism, a Y-axis adjustment mechanism, a Z-axis adjustment mechanism, a track slab connecting block, and a pad. The adjustment axes in each direction are vertically upward. A gear reduction mechanism is provided on the Z-axis adjustment mechanism. The track slab connecting block is hinged to the Z-axis of the Z-axis adjustment mechanism. The traveling rail is placed on the track slab, and the fine-tuning vehicle is placed on the traveling rail. Pneumatic assist arms are installed on both the front and rear sides of the fine-tuning vehicle, and a tightening shaft is installed at the end of each pneumatic assist arm to achieve track slab adjustment. This invention greatly improves the fine-tuning process of track slabs and, while ensuring efficiency and improving accuracy, reduces personnel requirements and labor intensity.

Description

Technical Field

[0001] This invention relates to the field of high-speed railway track construction technology, and in particular to a CRTSⅢ type slab track ballastless track slab fine-tuning equipment and fine-tuning method. Background Technology

[0002] Fine-tuning of slab track is one of the main methods used in the construction of new high-speed railway track projects. CRTSⅢ type slab track mainly comes in various specifications such as p5600, p4925, and p4856, with a width of 2500mm, a thickness of 200mm, and a self-compacting concrete layer thickness of 90mm. Following the concept of "replacing manpower with mechanization, reducing manpower with automation, and replacing manpower with information technology", relevant research on track slab fine-tuning equipment has been carried out.

[0003] At present, the fine adjustment of the CRTS Ⅲ type slab track in high-speed railway is mainly carried out by manual operation. Specifically, one technician observes the pre-installed targets with a total station to determine the offset of the targets from the design position. Then, the corresponding calculation software converts the offset of each target into the offset of the track slab and displays it on the technician's computer. The technician directs 4-5 commissioning personnel to adjust the existing fine adjustment supports based on his own commissioning experience.

[0004] The quality of the fine-tuning support directly affects the workers' labor intensity and whether the work can be completed on schedule. Existing fine-tuning supports use a three-horizontal-screw structure, requiring workers to adjust the nut position back and forth with a wrench. The torque during vertical adjustment can reach 160 Nm, and the connection between the fine-tuning support and the track slab cannot be perfectly aligned. Furthermore, the technician and workers are often far apart during fine-tuning, communicating primarily via walkie-talkie. The work often takes place at night, and due to environmental interference and differences in understanding, misoperation frequently occurs.

[0005] Furthermore, most of the equipment currently used for adjusting track slabs is mobile equipment. These mobile devices can be broadly categorized into two types: one type moves across the track slab outside of it, such as the mobile frame in Chinese Patent Publication No. CN114032717A, which moves outside the track slab; the other type moves on the track slab itself. The first type has a larger equipment structure, requiring passageways on both sides of the track slab and hindering the transport of other components during construction. The second type has a smaller equipment that doesn't occupy space outside the track slab, but the presence of 4-5 horizontal pressure bars on each track slab obstructs its movement, necessitating the installation of a track on the track slab.

[0006] In summary, the existing technology has the following problems:

[0007] (1) The current manual adjustment method is time-consuming and labor-intensive, and the adjustment results are mainly controlled by humans. This method requires operators to have high experience, and it is difficult to train personnel. Moreover, the adjustment process is relatively complicated, the accuracy of manual adjustment is poor, and the efficiency of the fine adjustment process often depends on the richness of the technician's experience. The efficiency is difficult to guarantee. At the same time, the entire fine adjustment process involves a large number of workers and high labor intensity.

[0008] (2) Existing fine-tuning supports have always had problems such as excessive adjustment torque, high labor intensity, insufficient precision, incomplete fit between the fine-tuning support and the track plate, and complicated adjustment procedures during operation.

[0009] (3) The existing track has low adaptability: the track slabs used for laying the track are not fine-tuned. During the fine-tuning process, the position will shift, which will generate stress on the track and hinder the fine-tuning operation; laying is difficult: the existing track is heavy and requires the assistance of engineering machinery for laying, which makes construction difficult; transportation is difficult: the existing track is long and requires large vehicles for transportation, which makes on-site transportation inconvenient. Summary of the Invention

[0010] This invention addresses the problems existing in the prior art by providing a CRTSⅢ type slab track slab fine-tuning device and method. This track slab fine-tuning device can effectively control the fine-tuning results and efficiency. It utilizes computer technology and servo control technology, and adopts a mobile operation method. Through an integrated structure, it greatly improves the track slab fine-tuning process. While ensuring efficiency and improving accuracy, it reduces personnel and labor intensity. At the same time, it uses information and intelligent means to realize remote data acquisition and remote equipment maintenance.

[0011] The present invention is implemented as follows: a CRTSⅢ type slab track ballastless track slab fine adjustment equipment, including fine adjustment support, running track, fine adjustment vehicle, total station, analysis equipment, host computer system, PLC controller, display and touch screen;

[0012] The fine-tuning support is installed on the side of the track slab. The fine-tuning support includes an X-axis adjustment mechanism, a Y-axis adjustment mechanism, a Z-axis adjustment mechanism, a track slab connecting block, and a pad. The X-axis adjustment mechanism is mounted on the pad, the Y-axis adjustment mechanism is mounted on the X-axis adjustment mechanism, and the Z-axis adjustment mechanism is mounted on the Y-axis adjustment mechanism. The X-axis, Y-axis, and Z-axis adjustment mechanisms are used to adjust the track slab in the X, Y, and Z three-dimensional directions, respectively. The adjustment axes of each of the X-axis, Y-axis, and Z-axis adjustment mechanisms are vertically upward. The Z-axis adjustment mechanism is equipped with a gear reduction mechanism to reduce the torque required for Z-axis adjustment. The track slab connecting block is hinged to the Z-axis support of the Z-axis adjustment mechanism, ensuring complete contact between the fine-tuning support and the track slab.

[0013] The trolley track is placed on the track plate. The trolley track includes track supports and track assemblies. The track supports sit on the track plate, and the track assemblies are placed on the track supports and supported by multiple sets of track supports. The track assemblies can move on the track supports.

[0014] The fine-tuning trolley is placed on the travel rail, allowing it to travel across the pressure bar on the track plate. Pneumatic assist arms are installed on both the front and rear sides of the fine-tuning trolley, and a tightening shaft is installed at the end of each pneumatic assist arm. The tightening shaft is used to drive the adjustment shafts of the corresponding fine-tuning support in various directions to rotate, thereby adjusting the track plate.

[0015] The total station is used to measure the position data of the track slab to be adjusted and transmit it to the analysis device; the analysis device is used to analyze the position data of the track slab to be adjusted using existing analysis software and transmit the analyzed deviation data of the track slab to the host computer system.

[0016] The host computer system and PLC controller are integrated in the fine-tuning vehicle. The host computer system is used to analyze the received deviation data of the track slab, select an optimal fine-tuning scheme suitable for the existing conditions, and transmit it to the PLC controller, display, and touch screen. The PLC controller is used to control the operation of the fine-tuning vehicle, the movement of the pneumatic assist arm, and the servo motor of the tightening shaft. The touch screen is connected to the PLC controller to realize human-machine interaction.

[0017] Preferably, the X-axis adjustment mechanism includes an X-axis frame, an X-axis adjustment slider, an X-axis adjustment screw, an X-axis bevel gear transmission mechanism, and an X-axis adjustment shaft. The X-axis frame is fixedly connected to a pad, the X-axis adjustment slider is slidably connected within the X-axis frame, the X-axis adjustment screw is threadedly connected to the X-axis adjustment slider, one end of the X-axis adjustment screw is fixedly connected to the output end of the X-axis bevel gear transmission mechanism, and the input end of the X-axis bevel gear transmission mechanism is fixedly connected to the X-axis adjustment shaft.

[0018] The Y-axis adjustment mechanism includes a Y-axis frame, a Y-axis adjustment slider, a Y-axis adjustment screw, a Y-axis bevel gear transmission mechanism, and a Y-axis adjustment shaft. The Y-axis frame is fixedly connected to the X-axis adjustment slider, the Y-axis adjustment slider is slidably connected inside the Y-axis frame, the Y-axis adjustment screw is threadedly connected to the Y-axis adjustment slider, one end of the Y-axis adjustment screw is fixedly connected to the output end of the Y-axis bevel gear transmission mechanism, and the input end of the Y-axis bevel gear transmission mechanism is fixedly connected to the Y-axis adjustment shaft.

[0019] The Z-axis adjustment mechanism includes a Z-axis support, a Z-axis support, a Z-axis adjusting screw, a gear reduction mechanism, and a Z-axis adjusting shaft. The Z-axis support is fixedly connected to the Y-axis adjusting slider, the Z-axis support is slidably connected inside the Z-axis support, the Z-axis adjusting screw is threadedly connected to the Z-axis support, the upper part of the Z-axis adjusting screw is connected to the output end of the gear reduction mechanism, and the input end of the gear reduction mechanism is fixedly connected to the Z-axis adjusting shaft.

[0020] More preferably, an X-axis bevel gear flange is fixedly connected to the X-axis frame, and the X-axis adjusting shaft is supported by a bearing assembly mounted on the X-axis bevel gear flange; a Y-axis bevel gear flange is fixedly connected to the Y-axis frame, and the Y-axis adjusting shaft is supported by a bearing assembly mounted on the Y-axis bevel gear flange; a Z-axis gear plate is fixedly connected to the top of the Z-axis support, and the Z-axis adjusting shaft is supported by a large deep groove ball bearing mounted on the Z-axis gear plate;

[0021] The X-axis bevel gear flange, Y-axis bevel gear flange, and Z-axis gear plate are each provided with a slot for inserting into the tightening shaft to connect the tightening shaft with the corresponding adjustment shaft.

[0022] More preferably, the bearing assembly on the X-axis bevel gear flange includes a bearing housing, an inner bearing gasket, an outer bearing gasket, and a small deep groove ball bearing. The bearing housing is mounted on the X-axis bevel gear flange. Small deep groove ball bearings are respectively arranged between the upper and lower parts of the bearing housing and the X-axis adjusting shaft. An outer bearing gasket is arranged between the outer rings of the upper and lower small deep groove ball bearings, and an inner bearing gasket is arranged between the inner rings of the upper and lower small deep groove ball bearings.

[0023] The bearing assembly on the Y-axis bevel gear flange has the same structure as the bearing assembly on the X-axis bevel gear flange.

[0024] More preferably, the gear reduction mechanism includes a large cylindrical gear and a small cylindrical gear, which mesh with each other. The axial direction of the large cylindrical gear is parallel to the axial direction of the small cylindrical gear. The large cylindrical gear is fixedly connected to the Z-axis adjusting screw, and the small cylindrical gear is fixedly connected to the Z-axis adjusting shaft.

[0025] Preferably, the track plate connecting block and the Z-axis support are hinged by a stepped pin, one end of which has a pin hole, and a cotter pin is inserted in the pin hole to prevent the stepped pin from coming out.

[0026] Preferably, the track assembly is an integral splicing structure, including tracks and floating connecting rods, with two parallel tracks connected by the floating connecting rods;

[0027] The track support includes legs and a limiting rod, with each end of the limiting rod connected to a leg. Each leg includes a base, a guide wheel, and a support rod. Guide wheels for providing left and right guidance to the track are installed on the left and right sides of the upper part of the base, and a support rod for supporting the fine-tuning car and the track is installed in the middle of the upper part of the base, so that the track can move back and forth on it under the combined action of the support rod and the guide wheel.

[0028] More preferably, each track comprises multiple track sections, with adjacent track sections connected by connecting plates. Each track is equipped with a blocking pin to prevent the track from shifting backward when the fine-tuning vehicle travels forward; the blocking pin engages with the outriggers as the fine-tuning vehicle moves forward along the track. Limiting posts are installed at both ends of each track.

[0029] More preferably, a floating joint is provided at each end of the floating connecting rod and the corresponding track.

[0030] More preferably, the guide wheel is a bolt-type roller needle bearing. The support roller is a non-powered roller with a wall thickness of 3mm or more. Both ends of the support roller are deep groove ball bearings.

[0031] More preferably, the bottom of the base has a slot for engaging with the sleepers of the track slab. A hanging ring is installed on the base.

[0032] Preferably, the fine-tuning device further includes a cable reel trolley, which provides power to the fine-tuning vehicle, and the fine-tuning vehicle is equipped with a power interface for connecting to the cable reel trolley.

[0033] A method for fine-tuning CRTS III type slab track ballastless track slabs includes the following steps:

[0034] S1. Connect the fine-tuning support to the track plate to be adjusted using fixing bolts; place the track support and pressure bar on the sleeper position on the track plate to be adjusted, then place the track assembly on the track support, and install the blocking pin on the track assembly to fix the track assembly relative to the track support; then hoist the fine-tuning car onto the track, drive it to the fine-tuning position of the track plate to be adjusted, and set up the target.

[0035] Set up the total station, establish communication connections between the total station, analytical equipment, host computer system, and PLC controller, and power supply the fine-tuning car;

[0036] S2. The total station measures the position data of the track slab to be adjusted and transmits it to the analysis device. After the analysis software in the analysis device analyzes the data, the deviation data of the track slab is transmitted to the host computer system. After analysis by the host computer system, an optimal fine-tuning scheme suitable for the existing conditions is selected and transmitted to the PLC controller. At the same time, the parameters of the fine-tuning scheme are displayed on the monitor and touch screen.

[0037] S3. According to the prompts on the monitor and touch screen, the on-site operator moves the pneumatic assist arm to connect the tightening shaft with the corresponding adjustment shaft of the fine adjustment support and locks the position of the pneumatic assist arm. The PLC controller controls the servo motors of each tightening shaft at the same time, driving the corresponding adjustment shaft of each fine adjustment support to rotate to the corresponding position and torque, so as to realize the adjustment of the entire track plate.

[0038] S4. After adjustment, the PLC controller will transmit the completion signal to the host computer system. The host computer system will then transmit the fine adjustment completion information to the analysis device. The analysis device will command the total station to retest and verify the fine adjustment result. The total station will retest. If the requirements are met, the debugging is completed. If not, steps S2 and S3 will be repeated until the requirements are met. Then, the adjustment of the next track plate to be adjusted will begin.

[0039] Preferably, when it is necessary to adjust the next track plate to be adjusted, first remove the blocking pin on the track assembly, connect the chain of the fine-tuning car to the track support directly below the fine-tuning car, and at the same time ensure that the track support is installed on the next track plate to be adjusted; then control the fine-tuning car to move backward, so that the track assembly moves forward to above the next track plate to be adjusted; then unlock the chain, install the blocking pin on the track assembly, and control the fine-tuning car to move to the fine-tuning position of the next track plate.

[0040] The advantages and positive effects of this invention are:

[0041] 1. The track slab fine-tuning equipment of the present invention can reduce the number of operators from 5-6 in the original fine-tuning process to 3. During the operation, the operator only needs to insert and tighten the shaft by using the pneumatic assist arm, which greatly reduces the labor intensity of the operators. The optimized scheme of the upper computer system and PLC controller for adjusting the offset ensures the stability of the operation efficiency. The synchronous control of 4 servo motors stabilizes the torque and adjustment position, reducing or even avoiding the concentration of internal stress in the track slab. The wireless communication and remote control of the upper computer system optimize the entire fine-tuning process, and at the same time, it can realize the remote retrieval of data for each track slab and the remote maintenance of the equipment.

[0042] 2. This invention greatly improves the fine-tuning process of track slabs, ensuring efficiency and improving accuracy while reducing personnel and labor intensity. It also adopts information technology and intelligent means to realize remote data acquisition and remote equipment maintenance.

[0043] 3. This invention replaces manual judgment with machine judgment, reducing the risk of human error and the difficulty of training personnel; it replaces manual adjustment with equipment adjustment, improving the speed and accuracy of adjustment; and simultaneous adjustment of four axes solves the problem of difficulty in coordination during manual adjustment. Furthermore, the data recorded by the system can provide a reference for subsequent process improvements. The application of this fine-tuning equipment significantly improves the overall construction quality of the track slab, increases the accuracy of fine-tuning positioning, reduces adjustment deviations and the number of adjustments, reduces the rework rate, and effectively improves working conditions. It reduces damage to the track slab caused by poor coordination among workers during the fine-tuning process, effectively avoids subsequent repair work, and ensures the quality of the track slab. Through the comprehensive application of intelligent fine-tuning equipment, fully automatic fine-tuning is achieved, with a fine-tuning speed more than twice as efficient as traditional fine-tuning processes, significantly reducing worker workload, shortening working time, improving construction efficiency, accelerating the construction progress of ballastless track, and resulting in significant economic benefits.

[0044] 4. The fine-tuning support of this invention significantly improves the accuracy of existing fine-tuning supports and enhances operational precision by replacing the original screw drive with a high-precision T-type lead screw transmission structure. The gear reduction mechanism reduces the torque required for adjustment, alleviating the labor intensity of manual operations. Furthermore, aligning the adjustment axes of the X, Y, and Z axes upwards allows for better coordination with the tightening shaft of the fine-tuning vehicle, reducing operational difficulty and space requirements, and providing a foundation for future fully automated and semi-automated fine-tuning. The addition of a hinge structure at the connection point with the track slab ensures a comprehensive fit, meeting the needs of different operating environments. This also reduces the risk of human error and the difficulty of personnel training.

[0045] 5. The traveling track of this invention allows the fine-tuning vehicle to travel on the track slab, avoiding obstruction of the fine-tuning vehicle by the pressure bar; it also adopts a modular design, with a simple structure, easy assembly, and convenient engineering transportation; the track and outriggers are separated, using a guiding form and leaving a gap, which can eliminate stress transmission during the fine-tuning process. Furthermore, it adopts a lightweight design, with the weight of a single outrigger not exceeding 20kg during track laying, facilitating manual handling; the design of the traveling track allows for track laying by manual pushing and pulling, or automatic track laying achieved through the driving power of the fine-tuning vehicle, offering convenience and flexibility, greatly saving track laying and transportation costs, and improving existing operational problems. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the specific embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some specific embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the fine-tuning device in this invention;

[0048] Figure 2 This is the front view of the fine-tuning vehicle in this invention;

[0049] Figure 3 This is a top view of the fine-tuning vehicle in this invention;

[0050] Figure 4 This is a side view of the fine-tuning vehicle in this invention;

[0051] Figure 5 This is a perspective view of the fine-tuning support in this invention;

[0052] Figure 6 This is a front view of the fine-tuning support in this invention;

[0053] Figure 7 yes Figure 6 AA cross-section view;

[0054] Figure 8 yes Figure 6 BB cross-section;

[0055] Figure 9 This is a side view of the fine-tuning support in this invention;

[0056] Figure 10 yes Figure 9 CC cross-section;

[0057] Figure 11 yes Figure 9 Top view;

[0058] Figure 12 This is a schematic diagram of the structure of the trolley track installed on the track plate in this invention;

[0059] Figure 13 This is a schematic diagram of the support leg assembly in this invention;

[0060] Figure 14 This is a schematic diagram of the track assembly in this invention;

[0061] Figure 15 This is a side view of the track assembly in this invention;

[0062] Figure 16 This is a top view of the track assembly in this invention;

[0063] Figure 17 yes Figure 16 Enlarged view of part A in the image;

[0064] Figure 18 yes Figure 16 Enlarged view of part B in the image;

[0065] Figure 19 This is the electrical schematic diagram of the present invention.

[0066] In the diagram: 100, fine-tuning support; 200, trolley track; 300, fine-tuning trolley; 400, cable reel trolley; 500, host computer system; 600, PLC controller; 700, track slab;

[0067] 1. X-axis adjustment mechanism; 101. X-axis frame; 102. X-axis adjustment slider; 103. X-axis adjustment screw; 104. X-axis bevel gear transmission mechanism; 104-1. X-axis first bevel gear; 104-2. X-axis second bevel gear; 105. X-axis adjustment shaft; 106. X-axis bevel gear flange; 107. X-axis protective cover;

[0068] 2. Y-axis adjustment mechanism; 201. Y-axis frame; 202. Y-axis adjustment slider; 203. Y-axis adjustment screw; 204. Y-axis bevel gear transmission mechanism; 204-1. Y-axis first bevel gear; 204-2. Y-axis second bevel gear; 205. Y-axis adjustment shaft; 206. Y-axis bevel gear flange; 207. Y-axis protective cover;

[0069] 3. Z-axis adjustment mechanism; 301. Z-axis support seat; 302. Z-axis support; 303. Z-axis adjusting screw; 304. Gear reduction mechanism; 304-1. Large cylindrical gear; 304-2. Small cylindrical gear; 305. Z-axis adjusting shaft; 306. Z-axis gear plate; 307. Z-axis gear cover;

[0070] 4. Track slab connecting block; 401. Step pin; 402. Cotter pin;

[0071] 5. Backing plate; 6. Copper bushing; 7. Bearing assembly; 701. Bearing housing; 702. Inner bearing bushing; 703. Outer bearing bushing; 704. Small deep groove ball bearing; 8. Large deep groove ball bearing;

[0072] 9. Track support; 901. Guide wheel; 902. Support rod; 903. Limiting rod; 904. Hanging ring; 905. Base; 905-1. Slot;

[0073] 10. Track assembly; 1001. Limiting post; 1002. Track section; 1003. Floating connecting rod; 1003-1. Floating joint; 1004. Connecting plate; 1005. Stopping pin;

[0074] 11. Pneumatic power arm; 12. Tightening shaft; 13. Power interface; 14. Remote control; 15. Pressure bar; 16. Sleeper. Detailed Implementation

[0075] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0076] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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.

[0078] Please see Figures 1 to 19 This embodiment provides a CRTSⅢ type slab track ballastless track slab fine adjustment equipment, including fine adjustment support 100, running track 200, fine adjustment car 300, cable reel trolley 400, total station, analysis equipment, host computer system 500, PLC controller 600, display and touch screen.

[0079] The fine-tuning cart 300 is placed on the traveling track 200, allowing it to travel across the pressure bar 15 on the track 700. The fine-tuning cart 300 integrates a host computer system 500, a power system, and a PLC controller 600. Pneumatic assist arms 11 are installed on both the front and rear sides, with a tightening shaft 12 at the end of each arm. The tightening shaft 12 drives the adjustment shafts of the corresponding fine-tuning support 100 in various directions, thereby adjusting the track 700. The rear of the fine-tuning cart 300 is equipped with a power interface 13 for connection to a cable reel trolley 400. The cable reel trolley 400 provides power to the fine-tuning cart 300 and contains 200 meters of cable.

[0080] The fine-tuning cart 300 is the main body of the track slab 700 fine-tuning equipment. It is a cart whose movement and turning can be controlled by a remote control. Each side of the fine-tuning cart 300 is equipped with a display and a touchscreen, allowing operators to monitor the equipment's operating status in real time and enabling convenient human-machine interaction. The fine-tuning cart 300 transmits power via a long cable, enabling it to move on ordinary roads and track slabs 700. It is easily transported, simple to operate, adaptable to diverse working conditions, and can operate automatically based on the length information of each track slab 700, achieving automated and intelligent movement during operation. Automatic track laying is achieved through the connection between the track support and the fine-tuning cart 300, utilizing reverse friction.

[0081] The total station is used to measure the position data of the track slab 700 to be adjusted and transmit it to the analysis device. The analysis device is used to analyze the position data of the track slab 700 to be adjusted using existing analysis software and transmit the analyzed deviation data of the track slab 700 to the host computer system 500. The wireless communication system built by the equipment, which is associated with the total station and the analysis device, makes communication between the various instruments and equipment convenient and reliable.

[0082] The host computer system 500 analyzes the received deviation data of the track slab 700, selects the optimal fine-tuning scheme suitable for the existing conditions, and transmits it to the PLC controller 600, display, and touch screen. Simultaneously, it can identify the existing track slab 700 model through data interaction and record the final status information of the track slab 700 for later data collection. The host computer system 500 includes a remote module, a communication module, a computing module, a control module, and a storage module, which are used for communication with the total station and analytical equipment, remote operation and maintenance, data analysis and transmission, communication with the PLC controller 600, and data storage, respectively.

[0083] The PLC controller 600 is used to control the operation of the fine-tuning vehicle 300, the movement of the pneumatic assist arm 11, and the servo motor of the tightening shaft 12. The touch screen is connected to the PLC controller 600 to realize human-machine interaction. The PLC controller 600 includes power control, alarm control, touch screen control, pneumatic control, and tightening shaft 12 control. The tightening shaft 12 control further synchronizes the control of the servo motors of the four tightening shafts 12.

[0084] Four fine-tuning supports 100 are respectively installed on both sides of the track slab 700. Each fine-tuning support 100 includes an X-axis adjustment mechanism 1, a Y-axis adjustment mechanism 2, a Z-axis adjustment mechanism 3, a track slab connecting block 4, and a pad 5. The X-axis adjustment mechanism 1 is mounted on the pad 5, the Y-axis adjustment mechanism 2 is mounted on the X-axis adjustment mechanism 1, and the Z-axis adjustment mechanism 3 is mounted on the Y-axis adjustment mechanism 2. The X-axis adjustment mechanism 1, Y-axis adjustment mechanism 2, and Z-axis adjustment mechanism 3 are used to adjust the track slab 700 in the X, Y, and Z three-dimensional directions, respectively. The adjustment of the X-axis adjustment mechanism 1, Y-axis adjustment mechanism 2, and Z-axis adjustment mechanism 3 is such that the adjustment axes of each are vertically upward. The Z-axis adjustment mechanism 3 is equipped with a gear reduction mechanism 304 to reduce the torque required for Z-axis adjustment. The track plate connecting block 4 is hinged to the Z-axis support 302 of the Z-axis adjustment mechanism 3. The hinge provides a certain degree of freedom to the Z-axis support, so that the track plate connecting block 4 and the track plate 700 fit together completely when connected, thus offsetting the internal stress generated by the change in the posture of the track plate 700 during the adjustment process.

[0085] The X-axis adjustment mechanism 1 includes an X-axis frame 101, an X-axis adjustment slider 102, an X-axis adjustment screw 103, an X-axis bevel gear transmission mechanism 104, and an X-axis adjustment shaft 105. The X-axis frame 101 is fixedly connected to the pad 5. The X-axis adjustment slider 102 is slidably connected inside the X-axis frame 101. The X-axis adjustment screw 103 is threadedly connected to the X-axis adjustment slider 102. One end of the X-axis adjustment screw 103 is fixedly connected to the output end of the X-axis bevel gear transmission mechanism 104, and the input end of the X-axis bevel gear transmission mechanism 104 is fixedly connected to the X-axis adjustment shaft 105. The structural design of the X-axis adjustment mechanism 1 realizes the transmission of a high-precision T-shaped lead screw in the X direction, and through the bevel gear transmission structure, the X-axis adjustment shaft is aligned with the Y and Z adjustment axes, thus standardizing the adjustment operation.

[0086] The X-axis bevel gear transmission mechanism 104 includes an X-axis first bevel gear 104-1 and an X-axis second bevel gear 104-2, which mesh with each other. The axial direction of the X-axis first bevel gear 104-1 is perpendicular to the axial direction of the X-axis second bevel gear 104-2. The X-axis first bevel gear 104-1 is fixedly connected to the X-axis adjusting shaft 105, and the X-axis second bevel gear 104-2 is fixedly connected to the X-axis adjusting screw 103. An X-axis bevel gear flange 106 is fixedly connected to the X-axis frame 101, and the X-axis adjusting shaft 105 is supported by a bearing assembly 7 mounted on the X-axis bevel gear flange 106.

[0087] The bearing assembly 7 on the X-axis bevel gear flange 106 includes a bearing housing 701, an inner bearing gasket 702, an outer bearing gasket 703, and a small deep groove ball bearing 704. The bearing housing 701 is mounted on the X-axis bevel gear flange 106. Small deep groove ball bearings 704 are respectively arranged between the upper and lower parts of the bearing housing 701 and the X-axis adjusting shaft 105. An outer bearing gasket 703 is arranged between the outer rings of the upper and lower small deep groove ball bearings 704, and an inner bearing gasket 702 is arranged between the inner rings of the upper and lower small deep groove ball bearings 704. The bearing assembly 7 adopts a double deep groove ball bearing structure. This structure can stabilize the adjusting shaft and also offset part of the axial force generated by the bevel gear structure. At the same time, it adopts a modular design for easy maintenance.

[0088] An X-axis protective cover 107 is provided around the X-axis bevel gear transmission mechanism 104, and the X-axis protective cover 107 is mounted on the X-axis frame 101; the X-axis adjusting shaft 105 is an X-axis bevel gear shaft. A copper pad is provided between the first X-axis bevel gear 104-1 and the corresponding bearing assembly 7, and a copper pad is provided between the second X-axis bevel gear 104-2 and the X-axis frame 101. Copper sleeves 6 are respectively provided between the two ends of the X-axis adjusting screw 103 and the X-axis frame 101. The copper sleeves 6 have a self-lubricating function, can withstand greater radial force, and are suitable for outdoor use.

[0089] The X-axis adjustment mechanism 1 consists of an X-axis adjusting screw 103 and an X-axis adjusting slider 102 mounted on an X-axis frame 101 via a copper sleeve 6. One end of the X-axis adjusting screw 103 is fixed using a limiting sleeve and a pin, while the other end is fitted with an X-axis second bevel gear 104-2. A copper pad is placed between the X-axis second bevel gear 104-2 and the X-axis frame 101. The meshing of the two bevel gears changes the direction of the output shaft from horizontal to vertical. Simultaneously, the X-axis adjusting shaft 105, combined with a small deep groove ball bearing 704 and a bearing pad, forms a transmission mechanism connected to the bevel gears. When the operator rotates the X-axis adjusting shaft using a special tool, the X-axis bevel gear transmission mechanism 104 transmits power to the X-axis adjusting slider 102 via the X-axis adjusting screw 103, achieving fine adjustment of the track plate 700 in the X-axis direction.

[0090] The Y-axis adjustment mechanism 2 includes a Y-axis frame 201, a Y-axis adjustment slider 202, a Y-axis adjustment screw 203, a Y-axis bevel gear transmission mechanism 204, and a Y-axis adjustment shaft 205. The Y-axis frame 201 is fixedly connected to the X-axis adjustment slider 102, and the Y-axis adjustment slider 202 is slidably connected within the Y-axis frame 201. The Y-axis adjustment screw 203 is threadedly connected to the Y-axis adjustment slider 202. One end of the Y-axis adjustment screw 203 is fixedly connected to the output end of the Y-axis bevel gear transmission mechanism 204, and the input end of the Y-axis bevel gear transmission mechanism 204 is fixedly connected to the Y-axis adjustment shaft 205. The structural design of the Y-axis adjustment mechanism 2 achieves high-precision T-shaped screw transmission in the Y direction and, through the bevel gear transmission structure, aligns the Y-axis adjustment shaft with the X and Z adjustment axes, thus standardizing the adjustment operation.

[0091] The Y-axis bevel gear transmission mechanism 204 includes a first Y-axis bevel gear 204-1 and a second Y-axis bevel gear 204-2, which mesh with each other. The axial direction of the first Y-axis bevel gear 204-1 is perpendicular to the axial direction of the second Y-axis bevel gear 204-2. The first Y-axis bevel gear 204-1 is fixedly connected to the Y-axis adjusting shaft 205, and the second Y-axis bevel gear 204-2 is fixedly connected to the Y-axis adjusting screw 203. A Y-axis bevel gear flange 206 is fixedly connected to the Y-axis frame 201, and the Y-axis adjusting shaft 205 is supported by a bearing assembly 7 mounted on the Y-axis bevel gear flange 206.

[0092] The bearing assembly 7 on the Y-axis bevel gear flange 206 has the same structure as the bearing assembly 7 on the X-axis bevel gear flange 106. A Y-protective cover 207 is provided around the Y-axis bevel gear transmission mechanism 204, and the Y-protective cover 207 is mounted on the Y-axis frame 201; the Y-axis adjusting shaft 205 is the Y-axis bevel gear shaft. A copper washer is provided between the first Y-axis bevel gear 204-1 and its corresponding bearing assembly 7, and a copper washer is provided between the second Y-axis bevel gear 204-2 and the Y-axis frame 201. Similarly, copper sleeves 6 are respectively provided between the two ends of the Y-axis adjusting screw 203 and the Y-axis frame 201.

[0093] The Y-axis adjustment mechanism 2 consists of a Y-axis adjusting screw 203 and a Y-axis adjusting slider 202 mounted on the Y-axis frame 201 via a copper sleeve 6. One end of the Y-axis adjusting screw 203 is fixed using a limiting sleeve and a pin, while the other end is fitted with a second Y-axis bevel gear 204-2. A copper pad is placed between the second Y-axis bevel gear 204-2 and the Y-axis frame 201. The meshing of the two bevel gears changes the direction of the output shaft from horizontal to vertical. Simultaneously, the Y-axis adjusting shaft 205, combined with a deep groove ball bearing and a bearing pad, forms a transmission mechanism connected to the bevel gears. When the operator rotates the Y-axis adjusting shaft using a special tool, the Y-axis bevel gear transmission mechanism 204 transmits power to the Y-axis adjusting slider 202 via the Y-axis adjusting screw 203, achieving fine adjustment of the track slab 700 in the Y-axis direction.

[0094] The Z-axis adjustment mechanism 3 includes a Z-axis support 301, a Z-axis support 302, a Z-axis adjustment screw 303, a gear reduction mechanism 304, and a Z-axis adjustment shaft 305. The Z-axis support 301 is fixedly connected to the Y-axis adjustment slider 202, and the Z-axis support 302 is slidably connected inside the Z-axis support 301. The Z-axis adjustment screw 303 is threadedly connected to the Z-axis support 302. The upper part of the Z-axis adjustment screw 303 is connected to the output end of the gear reduction mechanism 304, and the input end of the gear reduction mechanism 304 is fixedly connected to the Z-axis adjustment shaft 305. Similarly, copper sleeves 6 are respectively provided between the two ends of the Z-axis adjustment screw 303 and the Z-axis support 301. The structural design of the Z-axis adjustment mechanism 3 realizes the transmission of a high-precision T-shaped lead screw in the Z-direction, and the use of a spur gear reduction design can amplify the adjustment torque by up to 1.5 times; at the same time, the spur gear structure can transmit a larger torque, which can meet the requirements of large torque transmission in the Z-axis direction.

[0095] The gear reduction mechanism 304 includes a large cylindrical gear 304-1 and a small cylindrical gear 304-2, which mesh with each other. The axial direction of the large cylindrical gear 304-1 is parallel to that of the small cylindrical gear 304-2. The large cylindrical gear 304-1 is fixedly connected to the Z-axis adjusting screw 303, and the small cylindrical gear 304-2 is fixedly connected to the Z-axis adjusting shaft 305. A Z-axis gear plate 306 is fixedly connected to the top of the Z-axis support 301, and the Z-axis adjusting shaft 305 is supported by a large deep groove ball bearing 8 mounted on the Z-axis gear plate 306.

[0096] The gear reduction mechanism 304 is surrounded by a Z-axis gear cover 307, which is mounted on the Z-axis gear plate 306; the Z-axis adjustment shaft 305 is a Z-direction power shaft.

[0097] The X-axis bevel gear flange 106, Y-axis bevel gear flange 206, and Z-axis gear plate 306 are respectively provided with slots for inserting into the tightening shaft 12 to connect the tightening shaft 12 with the corresponding adjustment shaft.

[0098] The track plate connecting block 4 and the Z-axis support 302 are hinged by a stepped pin 401. One end of the stepped pin 401 has a pin hole, in which a device is inserted to prevent the stepped pin 401 from coming out.

[0099] The Z-axis adjustment mechanism 3 is constructed by mounting the Y-axis adjustment screw 203 and the Y-axis adjustment slider 202 together on the Z-axis frame via a copper sleeve 6. A large cylindrical gear 304-1 is then installed at the top of the Y-axis adjustment screw 203. The meshing of the large and small cylindrical gears 304-2 reduces the required input torque in the vertical direction. Simultaneously, the small cylindrical gear 304-2 and the large deep groove ball bearing 8 form a transmission mechanism that connects to the large cylindrical gear 304-1. When the operator rotates the Z-axis adjustment shaft 305 using a special tool, the gear reduction mechanism 304 transmits the power to the Z-axis support 302 via the lifting adjustment screw, achieving fine adjustment of the track plate 700 in the Z-axis direction. The track plate connecting block 4 of the fine adjustment support 100 fits against the track plate 700 and is assembled into a hinge structure via a stepped pin 401, meeting the requirement of complete fit under different working conditions.

[0100] The track slab 700 fine-tuning device is equipped with a new fine-tuning support 100. This support 100 employs a gear reduction mechanism to reduce adjustment torque; it also achieves fine-tuning through a T-shaped lead screw, and the PLC controller 600 controls the motion consistency, torque, and displacement of four servo motors in real time, improving the accuracy of fine-tuning and reducing or even eliminating stress concentration inside the track slab 700 during the fine-tuning process. A bevel gear transmission structure changes the adjustment direction, ensuring all adjustment shafts face upwards, making it more suitable for automated operation. During the tightening adjustment of shaft 12, the reaction force is returned to the fine-tuning support 100 body through a slot, offsetting the impact on the device and ensuring smooth operation. A hinge mechanism has been added to ensure complete contact between the outer rail and the track slab 700 under ultra-high working conditions.

[0101] The traveling track 200 is placed on the track plate 700. The traveling track 200 includes two parts: track support 9 and track assembly 10. The track support 9 sits directly on the track plate 700, and the track assembly 10 is placed on the track support 9 and supported by 8-10 sets of track supports 9.

[0102] The track support 9 includes legs and limiting rods 903. Each end of the limiting rod 903 is directly inserted into a leg, connecting two legs together to fix them to the track plate 700. The limiting rod 903 limits the width of the entire track support 9 to prevent lateral slippage when the outer rail is too high. Each leg includes a base 905, guide wheels 901, and support rods 902. Guide wheels 901 are installed on the left and right sides of the upper part of the base 905 to provide left and right guidance for the track. A support rod 902 is installed in the middle of the upper part of the base 905 to support the fine-tuning car 300 and the track, allowing the track to move back and forth on it under the combined action of the support rods 902 and guide wheels 901. The guide wheels 901 are bolt-type roller needle bearings. The guide wheels 901 with needle bearing design provide left and right guidance for the track, limiting left and right deviation, and the wheel structure allows for better correction. The support roller 902 is a non-powered roller with a wall thickness of 3mm, effectively supporting the weight of the fine-tuning car 300 and the track. Both ends of the support roller 902 are deep groove ball bearings, capable of withstanding sufficiently large radial forces. The bottom of the base 905 has a slot 905-1 for engaging with the sleepers of the track slab 700, ensuring the slot 905-1 fits precisely into the sleeper position of the track slab 700, preventing the support legs from shifting. A hanging ring 904 is installed on the base 905 for connecting the track support 9 and the fine-tuning car 300 during automatic track laying, thus securing the fine-tuning car 300.

[0103] The track assembly 10 is an integral splicing structure, including tracks and floating connecting rods 1003. Two parallel tracks are connected by the floating connecting rods 1003. Each track includes multiple track sections 1002, and adjacent track sections 1002 are connected by connecting plates 1004. The track sections 1002 are welded from steel structural components and can be spliced ​​together to form a 9-meter-long track through the connection of the connecting plates 1004. The floating connecting rods 1003 are used to connect two spliced ​​tracks. Each end of the floating connecting rod 1003 is provided with a floating joint 1003-1 between its two ends and the corresponding track to compensate for deformation caused by gaps. In this embodiment, the entire track assembly 10 is spliced ​​into a single component by two tracks and two floating connecting rods 1003.

[0104] During the laying of the track 200, the track supports 9 are placed in batches on a mobile vehicle. The outriggers are manually placed on the track slab 700 to be finely adjusted, and the upper limit rods 903 are inserted between the outriggers. The track section 1002, connecting plate 1004, floating connecting rod 1003 and limit post are then assembled into track assembly 10 by bolts. The track assembly 10 is then placed on the support rods 902 between the guide wheels 901 of the track supports 9 by a hoist. The track assembly 10 is manually pushed and pulled to test the smoothness of the track assembly 10 on the outriggers. The smoothness is adjusted by the floating connecting rods 1003 until it can be easily pushed and pulled. The track 200 is then considered to be erected.

[0105] Each track is equipped with a blocking pin 1005 to prevent the fine-tuning car 300 from moving backward when traveling forward. When the fine-tuning car 300 travels forward along the travel track 200, it exerts a backward reaction force on the track, causing it to slide backward. The blocking pin 1005 then engages with the outriggers to prevent the track from moving backward, thus enabling the fine-tuning car 300 to travel normally. Each track is also equipped with limit posts 1001 at both ends. The limit posts 1001 act as hard limits on the track, preventing the fine-tuning car 300 from derailing while traveling on the track.

[0106] The outriggers of the overhead rail 200 are equipped with guide wheels 901 on both sides and support rods 902, allowing the rail to roll forward between the outriggers during operation. Under normal conditions, a single person can easily push the rail. During normal operation, the fine-tuning cart 300 can be connected to the outrigger directly below it via a chain. Operating the fine-tuning cart 300 to reverse prevents it from moving due to the chain connection. The friction between the fine-tuning cart 300 and the rail will cause the rail to move to the next work position, thus achieving the self-laying function of the rail. Simultaneously, the rail can also be manually pushed and pulled between the outriggers to achieve work position switching.

[0107] Self-laying track is a unique feature of this rail system. This function primarily utilizes the reverse friction of the fine-tuning vehicle 300 to automatically lay the track. The specific operation process is as follows: After the crane track 200 is erected, the fine-tuning vehicle 300 is hoisted onto it. A blocking pin 1005 is installed on the crane track 200, allowing the fine-tuning vehicle 300 to move forward along it. When automatic track laying is required, the blocking pin 1005 is removed, and the chain on the fine-tuning vehicle 300 is connected to the hanging ring 904 on the support leg directly below it. The vehicle is then moved backward. Because it is connected to the support leg, the fine-tuning vehicle 300 cannot move further. Due to friction, the wheels and support rod 902 of the fine-tuning vehicle 300 push the track forward, achieving automatic track laying. After track laying is complete, the connecting chain is removed, and the blocking pin 1005 is reinstalled. The fine-tuning vehicle 300 can then continue moving forward.

[0108] The fine-tuning method for CRTS III type slab track includes the following steps:

[0109] S1. Connect the fine-tuning support 100 to the track plate 700 to be adjusted using fixing bolts; place the track support 9 and the pressure bar 15 on the sleeper 16 position on the track plate 700 to be adjusted, then place the track assembly 10 on the track support 9, and install the blocking pin 1005 on the track assembly 10 to fix the track assembly 10 relative to the track support 9; then hoist the fine-tuning car 300 onto the traveling track 200, drive it to the fine-tuning position of the track plate 700 to be adjusted, and set up the target.

[0110] Set up the total station, establish communication connections between the total station, analytical equipment, host computer system 500, and PLC controller 600, and connect the power supply to the cable reel trolley 400 through the electrical box on site, and then connect the cable to the power interface 13 of the fine-tuning car 300 to supply power to the fine-tuning car 300.

[0111] S2. The total station measures the position data of the track slab 700 to be adjusted and transmits it to the analysis device via Bluetooth. After analysis by the analysis software in the analysis device, the deviation data of the track slab 700 is transmitted to the host computer system 500 via the wireless communication network according to the existing protocol. After analysis by the host computer system 500, an optimal fine-tuning scheme suitable for the existing conditions is selected and transmitted to the PLC controller 600. At the same time, the parameters of the fine-tuning scheme are displayed on the monitor and touch screen.

[0112] S3. According to the prompts on the display and touch screen, the on-site operator moves the pneumatic assist arm 11 to connect the tightening shaft 12 with the corresponding adjustment shaft of the fine adjustment support 100 and locks the position of the pneumatic assist arm 11. The PLC controller controls the servo motors of each tightening shaft 12 at the same time, driving the corresponding adjustment shaft of each fine adjustment support 100 to rotate to the corresponding position and torque, so as to realize the adjustment of the entire track plate 700.

[0113] S4. After adjustment, the PLC controller will transmit the completion signal to the host computer system 500. The host computer system 500 will then transmit the fine adjustment completion information to the analysis device. The analysis device will command the total station to retest and verify the fine adjustment result. The total station will retest. If the requirements are met, the debugging is completed. If not, steps S2 and S3 will be repeated until the requirements are met. Then, the adjustment of the next track plate 700 to be adjusted will begin.

[0114] When the next track plate 700 to be adjusted needs to be adjusted, first remove the blocking pin 1005 on the track assembly 10, connect the chain of the fine-tuning cart 300 to the hanging ring 904 on the track support 9 directly below the fine-tuning cart 300, and at the same time ensure that the track support 9 is installed on the next track plate 700 to be adjusted; then control the fine-tuning cart 300 to move backward. Since the fine-tuning cart 300 is connected to the track support 9 below, the friction between the fine-tuning cart 300 and the traveling track 200 causes the track assembly 10 to move forward to above the next track plate 700 to be adjusted, realizing the automatic track laying of the equipment; then unlock the chain, install the blocking pin 1005 on the track assembly 10, and directly control the fine-tuning cart 300 to automatically move to the fine-tuning position of the next track plate 700 through the remote control 14.

[0115] The invention requires three operators during operation. One operator is responsible for setting up and observing the total station, while the other two are responsible for operating the fine-tuning carriage 300, tightening the insertion and removal of the shaft 12, and setting up the observation points.

[0116] The fine-tuning vehicle 300, in coordination with the operator, uses servo motors to adjust the X, Y, and Z axes of the fine-tuning support 100 of the track slab 700, thereby achieving fine-tuning of the width, length, and vertical directions of the track slab 700. After completion, a complete measurement is performed again, and the actual deviation values ​​in each direction are calculated. The deviation values ​​are then checked to see if they are within the allowable range specified in the standard. If the deviation values ​​are within the allowable range specified in the standard, the next adjustment step can be performed; otherwise, the above operation is repeated until the measurement data meets the standard requirements.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CRTSⅢ type slab track slab fine-tuning device, characterized in that, Includes fine-tuning supports, trolley tracks, fine-tuning vehicle, total station, analytical equipment, host computer system, PLC controller, display and touch screen; The fine-tuning support is installed on the side of the track slab. The fine-tuning support includes an X-axis adjustment mechanism, a Y-axis adjustment mechanism, a Z-axis adjustment mechanism, a track slab connecting block, and a pad. The X-axis adjustment mechanism is mounted on the pad, the Y-axis adjustment mechanism is mounted on the X-axis adjustment mechanism, and the Z-axis adjustment mechanism is mounted on the Y-axis adjustment mechanism. The X-axis, Y-axis, and Z-axis adjustment mechanisms are used to adjust the track slab in the X, Y, and Z three-dimensional directions, respectively. The adjustment axes of each of the X-axis, Y-axis, and Z-axis adjustment mechanisms are vertically upward. The Z-axis adjustment mechanism is equipped with a gear reduction mechanism to reduce the torque required for Z-axis adjustment. The track slab connecting block is hinged to the Z-axis support of the Z-axis adjustment mechanism, ensuring complete contact between the fine-tuning support and the track slab. The traveling track is placed on a track plate. The traveling track includes track supports and track assemblies. The track supports sit on the track plate, and the track assemblies are placed on the track supports and supported by multiple sets of track supports. The track assemblies can move on the track supports. The track assembly is an integral splicing structure, including tracks and floating connecting rods. Two parallel tracks are connected by floating connecting rods. The track supports include legs and limiting rods. Each end of the limiting rod is connected to a leg. Each leg includes a base, guide wheels, and support rods. Guide wheels for providing left and right guidance to the track are installed on the left and right sides of the upper part of the base. A support rod for supporting the fine-tuning car and the track is installed in the middle of the upper part of the base, so that the track can move back and forth on it under the combined action of the support rods and guide wheels. The fine-tuning trolley is placed on the traveling rail, allowing it to travel across the pressure bar on the track plate. Pneumatic assist arms are installed on both the front and rear sides of the fine-tuning trolley, and a tightening shaft is installed at the end of each pneumatic assist arm. The tightening shaft is used to drive the adjustment shafts of the corresponding fine-tuning support in various directions to rotate, thereby adjusting the track plate. The total station is used to measure the position data of the track slab to be adjusted and transmit it to the analysis device; the analysis device is used to analyze the position data of the track slab to be adjusted using existing analysis software and transmit the analyzed deviation data of the track slab to the host computer system. The host computer system and PLC controller are integrated in the fine-tuning vehicle. The host computer system is used to analyze the received deviation data of the track slab, select an optimal fine-tuning scheme suitable for the existing conditions, and transmit it to the PLC controller, display, and touch screen. The PLC controller is used to control the operation of the fine-tuning vehicle, the movement of the pneumatic assist arm, and the servo motor of the tightening shaft. The touch screen is connected to the PLC controller to realize human-machine interaction.

2. The CRTS III type slab track slab fine-tuning equipment according to claim 1, characterized in that, The X-axis adjustment mechanism includes an X-axis frame, an X-axis adjustment slider, an X-axis adjustment screw, an X-axis bevel gear transmission mechanism, and an X-axis adjustment shaft. The X-axis frame is fixedly connected to a pad, the X-axis adjustment slider is slidably connected inside the X-axis frame, the X-axis adjustment screw is threadedly connected to the X-axis adjustment slider, one end of the X-axis adjustment screw is fixedly connected to the output end of the X-axis bevel gear transmission mechanism, and the input end of the X-axis bevel gear transmission mechanism is fixedly connected to the X-axis adjustment shaft. The Y-axis adjustment mechanism includes a Y-axis frame, a Y-axis adjustment slider, a Y-axis adjustment screw, a Y-axis bevel gear transmission mechanism, and a Y-axis adjustment shaft. The Y-axis frame is fixedly connected to the X-axis adjustment slider, the Y-axis adjustment slider is slidably connected inside the Y-axis frame, the Y-axis adjustment screw is threadedly connected to the Y-axis adjustment slider, one end of the Y-axis adjustment screw is fixedly connected to the output end of the Y-axis bevel gear transmission mechanism, and the input end of the Y-axis bevel gear transmission mechanism is fixedly connected to the Y-axis adjustment shaft. The Z-axis adjustment mechanism includes a Z-axis support, a Z-axis support, a Z-axis adjusting screw, a gear reduction mechanism, and a Z-axis adjusting shaft. The Z-axis support is fixedly connected to the Y-axis adjusting slider, the Z-axis support is slidably connected inside the Z-axis support, the Z-axis adjusting screw is threadedly connected to the Z-axis support, the upper part of the Z-axis adjusting screw is connected to the output end of the gear reduction mechanism, and the input end of the gear reduction mechanism is fixedly connected to the Z-axis adjusting shaft.

3. The CRTS Ⅲ type slab track slab fine-tuning equipment according to claim 2, characterized in that, An X-axis bevel gear flange is fixedly connected to the X-axis frame, and the X-axis adjusting shaft is supported by a bearing assembly mounted on the X-axis bevel gear flange; a Y-axis bevel gear flange is fixedly connected to the Y-axis frame, and the Y-axis adjusting shaft is supported by a bearing assembly mounted on the Y-axis bevel gear flange; a Z-axis gear plate is fixedly connected to the top of the Z-axis support, and the Z-axis adjusting shaft is supported by a large deep groove ball bearing mounted on the Z-axis gear plate; The X-axis bevel gear flange, Y-axis bevel gear flange, and Z-axis gear plate are each provided with a slot for inserting into the tightening shaft to connect the tightening shaft with the corresponding adjustment shaft.

4. The CRTSⅢ type slab track slab fine-tuning equipment according to claim 2, characterized in that, The gear reduction mechanism includes a large cylindrical gear and a small cylindrical gear, which mesh with each other. The axial direction of the large cylindrical gear is parallel to the axial direction of the small cylindrical gear. The large cylindrical gear is fixedly connected to the Z-axis adjusting screw, and the small cylindrical gear is fixedly connected to the Z-axis adjusting shaft.

5. The CRTSⅢ type slab track slab fine-tuning equipment according to claim 1, characterized in that, The track plate connecting block is hinged to the Z-axis support by a stepped pin. One end of the stepped pin has a pin hole, in which a cotter pin is inserted to prevent the stepped pin from coming out.

6. The CRTSⅢ type slab track slab fine-tuning equipment according to claim 1, characterized in that, Each track includes multiple track sections, with adjacent track sections connected by connecting plates; each track is equipped with a blocking pin to prevent the track from moving backward when the fine-tuning vehicle is traveling forward, and the blocking pin is engaged with the outrigger when the fine-tuning vehicle is traveling forward along the track; each end of each track is equipped with a limit post; and each end of the floating connecting rod is connected to a floating joint between it and the corresponding track.

7. The CRTSⅢ type slab track slab fine-tuning equipment according to claim 1, characterized in that, The guide wheel is a bolt-type roller needle bearing; the support roller is a non-powered roller with a wall thickness of 3mm or more, and both ends of the support roller are deep groove ball bearing structures; the bottom of the base is provided with a slot for cooperating with the sleepers of the track slab, and a hanging ring is installed on the base.

8. A method for fine-tuning a CRTSⅢ type slab track ballastless track using the fine-tuning equipment described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Connect the fine-tuning support to the track plate to be adjusted using fixing bolts; place the track support and pressure bar on the sleeper position on the track plate to be adjusted, then place the track assembly on the track support, and install the blocking pin on the track assembly to fix the track assembly relative to the track support; then hoist the fine-tuning car onto the track, drive it to the fine-tuning position of the track plate to be adjusted, and set up the target. Set up the total station, establish communication connections between the total station, analytical equipment, host computer system, and PLC controller, and power supply the fine-tuning car; S2. The total station measures the position data of the track slab to be adjusted and transmits it to the analysis device. After the analysis software in the analysis device analyzes the data, the deviation data of the track slab is transmitted to the host computer system. After analysis by the host computer system, an optimal fine-tuning scheme suitable for the existing conditions is selected and transmitted to the PLC controller. At the same time, the parameters of the fine-tuning scheme are displayed on the monitor and touch screen. S3. According to the prompts on the monitor and touch screen, the on-site operator moves the pneumatic assist arm to connect the tightening shaft with the corresponding adjustment shaft of the fine adjustment support and locks the position of the pneumatic assist arm. The PLC controller controls the servo motors of each tightening shaft at the same time, driving the corresponding adjustment shaft of each fine adjustment support to rotate to the corresponding position and torque, so as to realize the adjustment of the entire track plate. S4. After adjustment, the PLC controller will transmit the completion signal to the host computer system. The host computer system will then transmit the fine adjustment completion information to the analysis device. The analysis device will command the total station to retest and verify the fine adjustment result. The total station will retest. If the requirements are met, the debugging is completed. If not, steps S2 and S3 will be repeated until the requirements are met. Then, the adjustment of the next track plate to be adjusted will begin.

9. The method for fine-tuning the CRTSⅢ type slab track ballastless track slab according to claim 8, characterized in that, When it is necessary to adjust the next track plate to be adjusted, first remove the blocking pin on the track assembly, connect the chain of the fine-tuning car to the track support directly below the fine-tuning car, and at the same time ensure that the track support has been installed on the next track plate to be adjusted. Then control the fine-tuning car to move backward, so that the track assembly moves forward to the top of the next track plate to be adjusted; then unlock the chain, install the blocking pin on the track assembly, and control the fine-tuning car to move to the fine-tuning position of the next track plate.

Images