A CRTSIII ballastless track plate automatic fine adjustment system

Abstract

A CRTSIII ballastless track slab automatic fine adjustment system, comprising a three-phase fine adjuster, a pushing trolley, a servo drive mechanism for driving the three-phase fine adjuster to work, and an electrical cabinet for supplying power to the servo drive mechanism; the pushing trolley comprises a trolley frame, universal wheels mounted on the bottom of the trolley frame, a suspension mechanism mounted on the trolley frame for suspending the servo drive mechanism, and an electrical cabinet mounting rack for fixing the electrical cabinet, and the electrical cabinet is mounted on the electrical cabinet mounting rack; the three-phase fine adjuster is mounted at and connected with the track slab to be adjusted, the pushing trolley is pushed along the longitudinal direction of the track slab through the universal wheels, and is used for transporting the servo drive mechanism to the track slab to be adjusted and connecting with the three-phase fine adjuster to drive the three-phase fine adjuster to work when fine adjustment of the track slab is needed, and after the fine adjustment of the track slab is completed, the suspended servo drive mechanism after being detached is transported to the next track slab to be adjusted through the suspension mechanism.

Description

Technical Field

[0001] This invention relates to the field of ballastless track slab construction technology, specifically to a CRTSIII ballastless track slab automatic fine-tuning system. Background Technology

[0002] In the laying of ballastless track slabs, the fine-tuning process is particularly important. The methods used for fine-tuning track slabs both domestically and internationally are inseparable from the track slab support and measurement methods. Currently, track slab fine-tuning generally involves supporting the track slab with an adjusting screw on a base plate. The prism position coordinates are measured using a total station, the adjustment amount is calculated by software, and then the fine-tuning screw is manually rotated to complete the adjustment. Manual adjustment has the following shortcomings:

[0003] (1) The adjustment efficiency is low. When adjusting manually, workers need to manually rotate the adjusting screw, which cannot achieve linkage of the adjusting screw, which is time-consuming and labor-intensive.

[0004] (2) The adjustment accuracy is low. When adjusting manually, the number of rotations of the adjusting screw is roughly calculated by the worker, and the fine adjustment is completed based on experience. The fine adjustment accuracy is difficult to guarantee. Summary of the Invention

[0005] In view of the technical defects and drawbacks existing in the prior art, embodiments of the present invention provide an automatic fine-tuning system for CRTSIII ballastless track slabs that overcomes or at least partially solves the above problems. The specific solution is as follows:

[0006] An automatic fine-tuning system for CRTSIII ballastless track slabs includes a three-phase fine-tuner for adjusting the track slab in three directions (X-axis, Y-axis, and Z-axis), a pushing trolley for pushing along the longitudinal direction of the track, a servo drive mechanism for driving the three-phase fine-tuner, and an electrical cabinet for powering the servo drive mechanism. The pushing trolley includes a frame, omnidirectional wheels mounted on the bottom of the frame, a suspension mechanism mounted on the frame for suspending the servo drive mechanism, and an electrical cabinet mounting frame for fixing the electrical cabinet. The electrical cabinet is mounted on the electrical cabinet mounting frame.

[0007] The three-phase fine adjuster is installed at the track plate to be adjusted and connected to the track plate. The pusher trolley is pushed along the longitudinal direction of the track plate by universal wheels. When the track plate needs to be finely adjusted, the servo drive mechanism is transported to the track plate to be adjusted and connected to the three-phase fine adjuster to drive the three-phase fine adjuster to work. After the track plate is finely adjusted, the servo drive mechanism is suspended by the suspension mechanism and transported to the next track plate to be finely adjusted.

[0008] Furthermore, the CRTSIII ballastless track slab automatic fine-tuning system also includes a measurement and calculation module. The measurement and calculation module is used to measure and calculate the adjustment amount of the track slab to be fine-tuned in the X-axis, Y-axis and Z-axis, generate adjustment amount control commands based on the adjustment amounts, and send the adjustment amount control commands to the servo drive mechanism. The servo drive mechanism is used to drive the three-phase fine-tuner to make corresponding adjustments to the track slab in the three directions of X-axis, Y-axis and Z-axis based on the adjustment amount control commands.

[0009] Furthermore, the three-phase fine tuner includes a fixed base, a ball joint base, and a three-phase adjustment module. The ball joint base is mounted on the fixed base and ball joint connected to the fixed base. The three-phase adjustment module includes an X-axis adjuster, a Y-axis adjuster, and a Z-axis adjuster. The Y-axis adjuster is slidably mounted on the ball joint base along the Y-axis, the X-axis adjuster is slidably mounted on the Y-axis adjuster along the X-axis, and the Z-axis adjuster is slidably mounted on the X-axis adjuster along the Z-axis. The servo drive mechanism includes a Y-axis servo drive mechanism for driving the Y-axis adjuster to slide along the Y-axis, an X-axis servo drive mechanism for driving the X-axis adjuster to slide along the X-axis, and a Z-axis servo drive mechanism for driving the Z-axis adjuster to slide along the Z-axis. The connection structure between the servo drive mechanism and the three-phase fine tuner is as follows: the X-axis servo drive mechanism is connected to the X-axis adjuster, the Y-axis servo drive mechanism is connected to the Y-axis adjuster, the Z-axis servo drive mechanism is connected to the Z-axis adjuster, and the Z-axis adjuster is connected to the track plate to be adjusted.

[0010] The lower end of the ball joint base is hemispherical, and the fixed base is provided with a concave spherical surface that matches the hemispherical shape of the lower end of the ball joint base. The lower end of the ball joint base is embedded in the concave spherical surface of the fixed base. The ball joint base and the fixed base are also connected by an anti-detachment screw to form an adaptive ball joint connection.

[0011] Furthermore, the Y-axis adjuster includes a Y-axis adjusting seat and a Y-axis adjusting bolt. The Y-axis adjusting seat is slidably mounted on a ball joint base along the Y-axis. The Y-axis servo drive mechanism includes a servo motor. The Y-axis adjusting bolt is arranged along the Y-axis. The screw of the Y-axis adjusting bolt is threadedly connected to the Y-axis adjusting seat. The screw head of the Y-axis adjusting bolt is fixedly connected to the output shaft of the servo motor of the Y-axis servo drive mechanism, and is driven to rotate by the servo motor of the Y-axis servo drive mechanism.

[0012] The Y-axis adjusting seat is slidably connected via a slot on its bottom that matches the top of the ball joint base. The top of the ball joint base also has a sliding groove along the Y direction. A guide screw is connected to the slot of the Y-axis adjusting seat, and the guide screw of the Y-axis adjusting seat is engaged in the sliding groove of the ball joint base. The ball joint base also has a recessed slot, and the head of the Y-axis adjusting bolt is engaged in the recessed slot of the ball joint base.

[0013] Furthermore, the X-axis adjuster includes an X-axis adjusting seat and an X-axis adjusting bolt. The X-axis adjusting seat is slidably mounted on the Y-axis adjuster along the X-axis. The X-axis servo drive mechanism includes a servo motor. The X-axis adjusting bolt is arranged along the X-axis. The screw of the X-axis adjusting bolt is threadedly connected to the X-axis adjusting seat. The screw head of the X-axis adjusting bolt is fixedly connected to the output shaft of the servo motor of the X-axis servo drive mechanism, and is driven to rotate by the servo motor of the X-axis servo drive mechanism.

[0014] The X-axis adjusting seat is slidably connected via a slot on its bottom that matches the top of the Y-axis adjusting device. The top of the Y-axis adjusting device also has a sliding groove along the X-axis. A guide screw is connected to the slot of the X-axis adjusting seat, and the guide screw of the X-axis adjusting seat is engaged in the sliding groove of the Y-axis adjusting device. The Y-axis adjusting device also has a recessed slot, and the head of the X-axis adjusting bolt is engaged in the recessed slot of the Y-axis adjusting device.

[0015] Furthermore, the Z-axis adjuster includes a Z-axis adjusting bolt and a fine-tuning mount for connection with the track plate. The fine-tuning mount is slidably mounted on the X-axis adjuster along the Z-axis. The Z-axis servo drive mechanism includes a servo motor. The Z-axis adjusting bolt is arranged along the Z-axis. The screw of the Z-axis adjusting bolt is threadedly connected to the fine-tuning mount. The screw head of the Z-axis adjusting bolt is connected to the output shaft of the servo motor of the Z-axis driver. The bottom end of the screw of the Z-axis adjusting bolt is hemispherical. The top of the X-axis adjuster is provided with a concave spherical surface that matches the hemispherical shape. The bottom end of the screw of the Z-axis adjusting bolt is embedded in the concave spherical surface of the X-axis adjuster.

[0016] Furthermore, the X-axis servo drive mechanism, Y-axis servo drive mechanism, and Z-axis servo drive mechanism each include a servo motor, a reducer, an output shaft fixed guide sleeve, an anti-torque seat, a spring, and a spring stop. The servo motor serves as a power source and is connected to the reducer via bolts. The reducer is connected to the output shaft fixed guide sleeve. The anti-torque seat and the spring stop are installed at intervals on the output shaft fixed guide sleeve, with the spring stop located at the end of the output shaft fixed guide sleeve. The spring is fitted onto the output shaft fixed guide sleeve and is located between the anti-torque seat and the spring stop. The spring is in a compressed state, with one end connected to the anti-torque seat and the other end connected to the spring stop.

[0017] Furthermore, the system also includes a fine tuner frame, on which the X-axis servo drive mechanism, Y-axis servo drive mechanism and Z-axis servo drive mechanism are all connected, and the fine tuner frame is detachably connected to the three-phase fine tuner.

[0018] Furthermore, the fine-tuning frame comprises an X-axis power mounting base, a first Y-axis guide rod, an X-axis guide mounting base, a Y-axis mounting plate, a Z-axis guide fixing block, a second Y-axis guide rod, and a Z-axis guide mounting base. The anti-torque seat of the X-axis servo drive mechanism is connected to the X-axis power mounting base. The X-axis power mounting base is slidably connected to the first Y-axis guide rod. The Z-axis servo drive mechanism is slidably connected to the X-axis guide groove of the Z-axis guide fixing block. Baffles are provided on both sides of the Z-axis guide fixing block. The Z-axis guide fixing block is slidably connected to the second Y-axis guide rod. The second Y-axis guide rod is connected to the Z-axis guide mounting base. Both the first Y-axis guide rod and the second Y-axis guide rod are arranged along the Y-axis. The X-axis guide groove is arranged along the X-axis.

[0019] Furthermore, there are four three-phase fine adjusters, which are installed at the four corners of the track plate to be adjusted.

[0020] The present invention has the following beneficial effects:

[0021] (1) When laying track slabs on curved sections, automatic fine-tuning of track slabs at superelevation positions can be completed.

[0022] (2) It can realize the quick disassembly, installation and transportation of servo drive mechanism;

[0023] (3) To achieve automation and intelligentization of fine-tuning operations for ballastless track slabs;

[0024] (4) Improve the fine-tuning accuracy and construction efficiency of ballastless track slab fine-tuning operations. Attached Figure Description

[0025] Figure 1 This is a front view of the CRTSIII ballastless track slab automatic fine-tuning system structure provided in an embodiment of the present invention;

[0026] Figure 2 This is a side view of the CRTSIII ballastless track slab automatic fine-tuning system structure provided in an embodiment of the present invention;

[0027] Figure 3 A structural diagram of the servo drive mechanism connected to the three-phase fine tuner provided in this embodiment of the invention;

[0028] Figure 4 A top view of the servo drive mechanism connected to the three-phase fine tuner provided in this embodiment of the invention;

[0029] Figure 5 A structural diagram of a pushing trolley provided in an embodiment of the present invention;

[0030] Figure 6 This is a front view of the connection between the three-phase fine tuner and the servo drive mechanism provided in an embodiment of the present invention;

[0031] Figure 7 A side view of the three-phase fine tuner and servo drive mechanism provided in an embodiment of the present invention;

[0032] Figure 8 This is a front view of a three-phase fine tuner provided in an embodiment of the present invention;

[0033] Figure 9 This is a side view of a three-phase fine tuner provided in an embodiment of the present invention;

[0034] Figure 10 A three-phase fine tuner isometry view provided in an embodiment of the present invention;

[0035] Figure 11 A top view of the three-phase fine tuner and servo drive mechanism provided in an embodiment of the present invention;

[0036] Figure 12 A structural diagram of the actuator provided in an embodiment of the present invention;

[0037] Figure 13 An isometric view of the three-phase fine tuner and servo drive mechanism provided in an embodiment of the present invention. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the present invention, and not all of the embodiments. 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.

[0039] like Figure 1-5As shown in the figure, an embodiment of the present invention provides an automatic fine-tuning system for CRTSIII ballastless track slabs. The system includes a three-phase fine-tuning device 1 for adjusting the track slab 10 in three directions: X-axis, Y-axis, and Z-axis; a pushing trolley 7 for pushing along the longitudinal direction of the track; a servo drive mechanism 9 for driving the three-phase fine-tuning device 1; and an electrical cabinet 8 for supplying power to the servo drive mechanism 9. The pushing trolley 7 includes a frame, universal wheels 3.1 mounted on the bottom of the frame, a suspension mechanism 3.2 mounted on the frame for suspending the servo drive mechanism 9, and an electrical cabinet mounting frame 3.3 for fixing the electrical cabinet 8. The electrical cabinet 8 is mounted on the electrical cabinet mounting frame 3.3.

[0040] The three-phase fine adjuster 1 is placed at the four corners of the track slab 10 before the fine adjustment operation and is connected to the track slab 10 by bolts. It also serves to support and fix the track slab 10 before the self-compacting concrete is poured. The three-phase fine adjuster 1 can complete the adjustment of three degrees of freedom of the track slab 10.

[0041] The pusher trolley 7 consists of omnidirectional wheels 3.1, a suspension mechanism 3.2, and an electrical cabinet mounting frame 3.3. The pusher trolley 7 uses a frame-type body, and the electrical cabinet 8 is mounted and fixed on the electrical cabinet mounting frame 3.3. The frame structure provides a mounting base for the hardware equipment. When fine-tuning a single track slab 10 is completed, the servo drive mechanism 9 is removed from the three-phase fine-tuner 1 and placed on the suspension mechanism 3.2, then transferred to the next track slab 10 for further fine-tuning. The pusher trolley 7 uses omnidirectional wheels 3.1 to ensure normal travel on curved sections of the track. The omnidirectional wheels 3.1 use a mechanical braking method. The pusher method is one specific implementation; wireless remote control or other methods can also be used.

[0042] After the trolley 7 has moved into position, the servo drive mechanism 9 is removed from the suspension mechanism 3.2 and installed on the three-phase fine tuner 1 that is pre-connected to the track plate 10 to begin fine-tuning.

[0043] Preferably, the CRTSIII ballastless track slab 10 automatic fine-tuning system further includes a measurement and calculation module and an electrical control cabinet 6. The measurement and calculation module is used to measure and calculate the adjustment amount of the track slab 10 to be fine-tuned in the X-axis, Y-axis and Z-axis, generate adjustment amount control commands based on the adjustment amounts, and send the adjustment amount control commands to the electrical control cabinet 6. The electrical control cabinet 6 sends the adjustment amount control commands to the servo drive mechanism 9. The servo drive mechanism 9 is used to drive the three-phase fine adjuster 1 to make corresponding adjustments to the track slab 10 in the three directions of X-axis, Y-axis and Z-axis based on the adjustment amount control commands.

[0044] The measurement and calculation module includes a control handheld device, a total station, and an industrial computer. After the servo drive mechanism 9 is installed, the line data file is imported into the control handheld device, which then controls the total station to automatically measure the position coordinates of the prism reference instrument 11. After measurement, the adjustment amount of the track slab 10 is automatically calculated. Seven adjustment data points are generated: lateral deviation, mileage deviation, and elevation. The industrial computer receives the adjustment data via a wireless network and determines the adjustment plan. The wireless serial port server in the electrical control cabinet 6 receives the adjustment control command and controls the servo drive mechanism 9 to execute actions sequentially, driving the three-phase fine adjuster 1 to adjust the track slab 10 into position.

[0045] After adjustment, a completion signal is sent to the industrial control computer. At this point, the control handheld device continues to control the total station to automatically measure the position coordinates of the prism reference instrument 11. If the geometric position of the track slab 10 is within the allowable range of adjustment error, no further action is taken. The spatial position of the track slab 10 is calculated again to determine the adjustment plan, and the track slab 10 is adjusted a second time until it is in place. After adjustment, it is transferred to the next track slab 10 for further fine-tuning, thus basically achieving automation and intelligence in the track slab 10 operation.

[0046] like Figure 6-13 As shown, the three-phase fine tuner 1 includes a fixed base 1.1, a ball joint base 1.2, and a three-phase adjustment module. The ball joint base 1.1 is mounted on the fixed base 1.2 and ball joint connected to the fixed base 1.2. The three-phase adjustment module includes an X-axis adjuster, a Y-axis adjuster, and a Z-axis adjuster. The Y-axis adjuster is slidably mounted on the ball joint base along the Y-axis, the X-axis adjuster is slidably mounted on the Y-axis adjuster along the X-axis, and the Z-axis adjuster is slidably mounted on the X-axis adjuster along the Z-axis. The servo drive mechanism 9 includes a Y-axis servo drive mechanism 3 that drives the Y-axis adjuster to slide along the Y-axis, an X-axis servo drive mechanism 2 that drives the X-axis adjuster to slide along the X-axis, and a Z-axis servo drive mechanism 4 that drives the Z-axis adjuster to slide along the Z-axis. The X-axis servo drive mechanism 2 is connected to the X-axis adjuster, the Y-axis servo drive mechanism 3 is connected to the Y-axis adjuster, and the Z-axis servo drive mechanism 4 is connected to the Z-axis adjuster.

[0047] The lower end of the ball joint base 1.2 is hemispherical, and the fixed base 1.1 is provided with a concave spherical surface that matches the hemispherical shape. The lower end of the ball joint base 1.2 is embedded in the concave spherical surface of the fixed base 1.1. The ball joint base 1.2 and the fixed base 1.1 are also connected by an anti-detachment screw 1.11 to form an adaptive ball joint connection, which allows the fixed base 1.1 and the ball joint base 1.2 to slide relative to each other and adapt to the slope of both sides of the concrete base plate.

[0048] In the above embodiment, the fixed base 1.1 and the ball joint base 1.2 are connected by a hemispherical fit and a central anti-detachment screw 1.11 to form an adaptive ball joint. When the automatic fine adjuster is placed on the base plate, the lower ball joint can compensate for the slope on both sides of the base plate, ensuring the stability of the upper frame structure.

[0049] Preferably, the Y-axis adjuster includes a Y-axis adjusting seat 1.3 and a Y-axis adjusting bolt 1.4. The Y-axis adjusting seat 1.3 is slidably mounted on the ball joint base 1.2 along the Y-axis. The Y-axis servo drive mechanism 3 includes a servo motor. The Y-axis adjusting bolt 1.4 is arranged along the Y-axis. The screw of the Y-axis adjusting bolt 1.4 is threadedly connected to the Y-axis adjusting seat 1.3. The screw head of the Y-axis adjusting bolt 1.4 is fixedly connected to the output shaft of the servo motor of the Y-axis servo drive mechanism 3, and is driven to rotate by the servo motor of the Y-axis servo drive mechanism 3. The Y-axis adjusting seat 1.3 is slidably connected to the ball joint base 1.2 via a slot on its bottom that matches the top of the ball joint base 1.2. The ball joint base 1.2 also has a sliding groove along the Y direction on its top. A guide screw 1.12 is connected to the slot of the Y-axis adjusting seat 1.3. The guide screw 1.12 of the Y-axis adjusting seat 1.3 is engaged in the sliding groove of the ball joint base. The guide screw of the Y-axis adjusting seat 1.3 slides along the sliding groove of the ball joint base 1.2 to achieve the guiding function. The ball joint base 1.2 is provided with a groove slot, and the screw head of the Y-axis adjusting bolt 1.4 is engaged in the groove slot of the ball joint base 1.2 to fix the axial direction of the Y-axis adjusting bolt 1.4. In use, the Y-axis servo drive mechanism 3 drives the Y-axis adjusting bolt 1.4 to rotate. Since the Y-axis adjusting bolt 1.4 is fixed axially, when it rotates, the Y-axis adjusting seat 1.3 connected to it can slide linearly along the Y-axis. The upper overall structure connected to the Y-axis adjusting seat 1.3 will also move along the Y-axis. In the upper structure, the fine adjuster mounting seat 1.5 is connected to the track plate 10 to realize the Y-axis adjustment of the track plate 10.

[0050] Preferably, the X-axis adjuster includes an X-axis adjusting seat 1.7 and an X-axis adjusting bolt 1.8. The X-axis adjusting seat 1.7 is slidably mounted on the Y-axis adjuster along the X-axis. The X-axis servo drive mechanism 2 includes a servo motor. The X-axis adjusting bolt 1.8 is arranged along the X-axis. The screw of the X-axis adjusting bolt 1.8 is threadedly connected to the X-axis adjusting seat 1.7, and the screw head of the X-axis adjusting bolt 1.8 is fixedly connected to the output shaft of the servo motor of the X-axis servo drive mechanism 2, and is driven to rotate by the servo motor of the X-axis servo drive mechanism 2. The X-axis adjusting seat 1.7 is slidably connected through a slot on its bottom that matches the top of the Y-axis adjuster. The top of the Y-axis adjuster also has a groove along the X-axis. A guide screw is connected to the slot of the X-axis adjusting seat 1.7. The guide screw of the X-axis adjusting seat 1.7 is engaged in the groove of the Y-axis adjuster, and the guide screw of the X-axis adjusting seat 1.7 slides along the direction of the groove of the Y-axis adjuster to achieve a guiding function. The Y-axis adjustment seat 1.3 of the Y-axis adjuster is provided with a groove slot. The screw head of the X-axis adjustment bolt 1.8 is inserted into the groove slot of the Y-axis adjustment seat 1.3 to fix the X-axis adjustment bolt 1.8 axially. In use, the X-axis servo drive mechanism 2 drives the X-axis adjustment bolt 1.8 to rotate. Since the X-axis adjustment bolt 1.8 is fixed axially, when it rotates, the X-axis adjustment seat 1.7 connected to it can slide linearly along the X-axis. The upper overall structure connected to the X-axis adjustment seat will also move along the X-axis. In the upper structure, the fine adjuster mounting seat 1.5 is connected to the track plate 10 to realize the X-axis adjustment of the track plate 10.

[0051] Preferably, the Z-axis adjuster includes a Z-axis adjusting bolt 1.6 and a fine-tuning mount 1.5 for connection with the track plate 10. The fine-tuning mount 1.5 is slidably mounted on the X-axis adjuster along the Z-axis. The Z-axis servo drive mechanism 4 includes a servo motor. The Z-axis adjusting bolt 1.6 is arranged along the Z-axis. The screw of the Z-axis adjusting bolt 1.6 is threadedly connected to the fine-tuning mount 1.5. The screw head of the Z-axis adjusting bolt 1.6 is connected to the output shaft of the servo motor of the Z-axis driver. The bottom end of the screw of the Z-axis adjusting bolt 1.6 is hemispherical. The top of the X-axis adjuster is provided with a concave spherical surface that matches the hemispherical shape. The bottom end of the screw of the Z-axis adjusting bolt 1.6 is placed in the concave spherical surface of the X-axis adjuster. The Z-axis servo drive mechanism 4 drives the Z-axis adjusting bolt 1.6 to rotate. Since the Z-axis adjustment axis is fixed, when it rotates, the fine adjuster mounting base 1.5 moves along the screw of the Z-axis adjusting bolt 1.6 to realize the Z-axis adjustment of the track plate 10. The X-axis adjuster is also provided with a Z-axis bolt stop 1.10.

[0052] In the above embodiments, the track plate 10 is adjusted by using an XYZ three-phase regulator to achieve the purpose of adjusting the track plate 10 in three degrees of freedom.

[0053] The X-axis servo drive mechanism 2, Y-axis servo drive mechanism 3, and Z-axis servo drive mechanism 4 have the same structure. Each of these mechanisms includes a servo motor 2.1, a reducer 2.2, an output shaft fixing guide sleeve 2.3, an anti-torque seat 2.4, a spring 2.5, and a spring stop 2.6. The servo motor 2.1 serves as the power source and is bolted to the reducer 2.2. The reducer 2.2 is connected to the output shaft fixing guide sleeve 2.3. The anti-torque seat 2.4 and the spring stop 2.6 are spaced apart on the output shaft fixing guide sleeve 2.3, with the spring stop 2.6 located at the end of the sleeve. The spring 2.5 is fitted onto the sleeve 2.3 and located between the anti-torque seat 2.4 and the spring stop 2.6. The spring 2.6 is in a compressed state, with one end connected to the anti-torque seat 2.4 and the other end connected to the spring stop 2.6. During the fine-tuning process, the restoring force of the spring prevents axial movement of the output shaft, thus acting as a stop for fixation. The output shaft of the servo drive mechanism 9 is connected to the adjusting bolt of the three-phase fine tuner 1, and the servo drive mechanism 9 drives the adjusting bolt to rotate to complete the fine-tuning of the track plate 10.

[0054] Preferably, the three-degree-of-freedom automatic fine-tuning device further includes a fine-tuning frame 5. The X-axis servo drive mechanism 2, the Y-axis servo drive mechanism 3, and the Z-axis servo drive mechanism 4 are all connected to the fine-tuning frame 5. The fine-tuning frame 5 is detachably connected to the three-phase fine-tuning device 1, making the servo drive mechanism 9 a frame structure. It is compact, lightweight, and can be quickly installed and disassembled, ensuring the efficiency of fine-tuning operations.

[0055] The fine-tuning frame 5 is composed of an X-axis power mounting base 5.1, a first Y-axis guide rod 5.2, an X-axis guide mounting base 5.3, a Y-axis mounting plate 5.4, a Z-axis guide fixing block 5.5, a second Y-axis guide rod 5.6, a Z-axis guide mounting base 5.7, and an electrical control cabinet mounting plate 5.8. The anti-torque seat 2.4 of the X-axis servo drive mechanism 2 is connected to the X-axis power mounting base 5.1, and the X-axis power mounting base 5.1 is slidably connected to the first Y-axis guide rod 5.2. The X-axis servo drive mechanism 2 is fixed to the fine-tuning frame 5 via the X-axis guide mounting base 5.3, enabling the X-axis servo drive mechanism 2 to slide along the Y-axis. The Z-axis servo drive mechanism 4 is slidably connected to the X-axis guide groove of the Z-axis guide fixing block 5.5 to accommodate X-axis adjustments. The Z-axis guide fixing block 5.5 has baffles on both sides. The Z-axis guide fixing block 5.5 is slidably connected to the second Y-axis guide rod 5.6. The second Y-axis guide rod 5.6 is connected to the Z-axis guide mounting seat 5.7 to accommodate Y-axis adjustment, thereby allowing the Z-axis servo drive mechanism 4 to move along the X / Y axes. The Y-axis servo drive mechanism 3 is connected to the Y-axis mounting plate 5.4 and fixed to the fine tuner frame 5 via the Y-axis mounting plate 5.4. The electrical control cabinet 6 is fixed to the electrical control cabinet mounting plate 5.8. This invention adopts a frame structure, which is compact and easy to install and disassemble. The X / Y / Z-axis servo drive mechanism and the fine tuner frame 5 are connected as a whole. During fine-tuning operations, the fine tuner frame 5 is installed on the three-phase fine tuner 1, and the output shafts of the X / Y / Z-axis servo drive mechanisms are connected to the X / Y / Z-axis adjusting bolts respectively. Due to the restoring force of the spring 2.5 on the actuator, the device is quick to install and easy to disassemble. The first Y-axis guide rod and the second Y-axis guide rod are both arranged along the Y-axis, and the X-axis guide groove is arranged along the X-axis.

[0056] In summary: When the Y-axis servo drive mechanism 3 drives the Y-axis adjusting bolt 1.4 to rotate, the Y-axis adjusting seat 1.3 moves along the Y-axis. In the upper integral structure connected to it, the X / Z-axis actuator, due to its connection with the slider, moves along the Y-axis, and the fine adjuster mounting seat 1.5 also moves along the Y-axis, thus realizing the Y-axis adjustment of the track plate 10; When the X-axis servo drive mechanism 2 drives the X-axis adjusting bolt 1.8 to rotate, the X-axis adjusting seat 1.7 moves along the X-axis. In the upper integral structure connected to it, the Z-axis servo drive mechanism 4, due to its connection with the slider, moves along the X-axis, and the fine adjuster mounting seat 1.5 also moves along the X-axis, thus realizing the X-axis adjustment of the track plate 10; When the Z-axis actuator 4 drives the Z-axis adjusting bolt 1.6 to rotate, it directly drives the fine adjuster mounting seat 1.5 to move along the Z-axis, thus realizing the Z-axis adjustment of the track plate 10. During fine-tuning, the four sets of automatic fine-tuners located at the four corners of the track slab 10, totaling 12 sets of servo drive mechanisms 9, automatically receive adjustment data and work together according to the predetermined adjustment scheme to achieve precise adjustment of the track slab 10's mileage deviation, lateral deviation, and vertical deviation.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic fine-tuning system for CRTSIII ballastless track slabs, characterized in that, The system includes a three-phase fine adjuster for adjusting the track plate in three directions: X-axis, Y-axis and Z-axis, a pusher trolley for pushing along the longitudinal direction of the track, a servo drive mechanism for driving the three-phase fine adjuster, and an electrical cabinet for powering the servo drive mechanism. The pusher trolley includes a frame, omnidirectional wheels mounted on the bottom of the frame, a suspension mechanism mounted on the frame for suspending the servo drive mechanism, and an electrical cabinet mounting bracket for fixing the electrical cabinet. The electrical cabinet is mounted on the electrical cabinet mounting bracket. The three-phase fine adjuster is installed at the track plate to be adjusted and connected to the track plate. The pusher trolley is pushed along the longitudinal direction of the track plate by universal wheels. When the track plate needs to be finely adjusted, the servo drive mechanism is transported to the track plate to be adjusted and connected to the three-phase fine adjuster to drive the three-phase fine adjuster to work. After the track plate is finely adjusted, the servo drive mechanism is suspended by the suspension mechanism and transported to the next track plate to be finely adjusted. The three-phase fine tuner includes a fixed base, a ball joint base, and a three-phase adjustment module. The ball joint base is mounted on the fixed base and ball joint connected to the fixed base. The three-phase adjustment module includes an X-axis adjuster, a Y-axis adjuster, and a Z-axis adjuster. The Y-axis adjuster is slidably mounted on the ball joint base along the Y-axis, the X-axis adjuster is slidably mounted on the Y-axis adjuster along the X-axis, and the Z-axis adjuster is slidably mounted on the X-axis adjuster along the Z-axis. The servo drive mechanism includes a Y-axis servo drive mechanism for driving the Y-axis adjuster to slide along the Y-axis, an X-axis servo drive mechanism for driving the X-axis adjuster to slide along the X-axis, and a Z-axis servo drive mechanism for driving the Z-axis adjuster to slide along the Z-axis. The connection structure between the servo drive mechanism and the three-phase fine tuner is as follows: the X-axis servo drive mechanism is connected to the X-axis adjuster, the Y-axis servo drive mechanism is connected to the Y-axis adjuster, the Z-axis servo drive mechanism is connected to the Z-axis adjuster, and the Z-axis adjuster is connected to the track plate to be adjusted. The lower end of the ball joint base is hemispherical, and the fixed base is provided with a concave spherical surface that matches the hemispherical shape of the lower end of the ball joint base. The lower end of the ball joint base is embedded in the concave spherical surface of the fixed base. The ball joint base and the fixed base are also connected by an anti-detachment screw to form an adaptive ball joint connection. The system also includes a fine tuner frame, on which the X-axis servo drive mechanism, Y-axis servo drive mechanism and Z-axis servo drive mechanism are all connected. The fine tuner frame is detachably connected to the three-phase fine tuner. The fine-tuning frame comprises an X-axis power mounting base, a first Y-axis guide rod, an X-axis guide mounting base, a Y-axis mounting plate, a Z-axis guide fixing block, a second Y-axis guide rod, and a Z-axis guide mounting base. The anti-torque seat of the X-axis servo drive mechanism is connected to the X-axis power mounting base. The X-axis power mounting base is slidably connected to the first Y-axis guide rod. The Z-axis servo drive mechanism is slidably connected to the X-axis guide groove of the Z-axis guide fixing block. Baffles are provided on both sides of the Z-axis guide fixing block. The Z-axis guide fixing block is slidably connected to the second Y-axis guide rod. The second Y-axis guide rod is connected to the Z-axis guide mounting base. Both the first Y-axis guide rod and the second Y-axis guide rod are arranged along the Y-axis. The X-axis guide groove is arranged along the X-axis. The CRTSIII ballastless track slab automatic fine-tuning system further includes a measurement and calculation module. This module measures and calculates the adjustment amounts of the track slab to be fine-tuned along the X, Y, and Z axes. Based on these adjustment amounts, it generates adjustment control commands and sends them to a servo drive mechanism. The servo drive mechanism drives a three-phase fine-tuner to make corresponding adjustments to the track slab in the X, Y, and Z axes based on the adjustment control commands.

2. The CRTSIII ballastless track slab automatic fine-tuning system according to claim 1, characterized in that, The Y-axis adjuster includes a Y-axis adjusting seat and a Y-axis adjusting bolt. The Y-axis adjusting seat is slidably mounted on a ball joint base along the Y-axis. The Y-axis servo drive mechanism includes a servo motor. The Y-axis adjusting bolt is arranged along the Y-axis. The screw of the Y-axis adjusting bolt is threadedly connected to the Y-axis adjusting seat. The screw head of the Y-axis adjusting bolt is fixedly connected to the output shaft of the servo motor of the Y-axis servo drive mechanism, and is driven to rotate by the servo motor of the Y-axis servo drive mechanism. The Y-axis adjusting seat is slidably connected via a slot on its bottom that matches the top of the ball joint base. The top of the ball joint base also has a sliding groove along the Y direction. A guide screw is connected to the slot of the Y-axis adjusting seat, and the guide screw of the Y-axis adjusting seat is engaged in the sliding groove of the ball joint base. The ball joint base also has a recessed slot, and the head of the Y-axis adjusting bolt is engaged in the recessed slot of the ball joint base.

3. The CRTSIII ballastless track slab automatic fine-tuning system according to claim 1, characterized in that, The X-axis adjuster includes an X-axis adjusting seat and an X-axis adjusting bolt. The X-axis adjusting seat is slidably mounted on the Y-axis adjuster along the X-axis. The X-axis servo drive mechanism includes a servo motor. The X-axis adjusting bolt is arranged along the X-axis. The screw of the X-axis adjusting bolt is threadedly connected to the X-axis adjusting seat. The screw head of the X-axis adjusting bolt is fixedly connected to the output shaft of the servo motor of the X-axis servo drive mechanism, and is driven to rotate by the servo motor of the X-axis servo drive mechanism. The X-axis adjusting seat is slidably connected via a slot on its bottom that matches the top of the Y-axis adjusting device. The top of the Y-axis adjusting device also has a sliding groove along the X-axis. A guide screw is connected to the slot of the X-axis adjusting seat, and the guide screw of the X-axis adjusting seat is engaged in the sliding groove of the Y-axis adjusting device. The Y-axis adjusting device also has a recessed slot, and the head of the X-axis adjusting bolt is engaged in the recessed slot of the Y-axis adjusting device.

4. The CRTSIII ballastless track slab automatic fine-tuning system according to claim 1, characterized in that, The Z-axis adjuster includes a Z-axis adjusting bolt and a fine-tuning mount for connection with the track slab. The fine-tuning mount is slidably mounted on the X-axis adjuster along the Z-axis. The Z-axis servo drive mechanism includes a servo motor. The Z-axis adjusting bolt is arranged along the Z-axis. The screw of the Z-axis adjusting bolt is threadedly connected to the fine-tuning mount. The screw head of the Z-axis adjusting bolt is connected to the output shaft of the servo motor of the Z-axis driver. The bottom end of the screw of the Z-axis adjusting bolt is hemispherical. The top of the X-axis adjuster is provided with a concave spherical surface that matches the hemispherical shape. The bottom end of the screw of the Z-axis adjusting bolt is embedded in the concave spherical surface of the X-axis adjuster.

5. The CRTSIII ballastless track slab automatic fine-tuning system according to claim 1, characterized in that, The X-axis servo drive mechanism, Y-axis servo drive mechanism, and Z-axis servo drive mechanism each include a servo motor, a reducer, an output shaft fixed guide sleeve, an anti-torque seat, a spring, and a spring stop. The servo motor serves as a power source and is connected to the reducer via bolts. The reducer is connected to the output shaft fixed guide sleeve. The anti-torque seat and the spring stop are installed at intervals on the output shaft fixed guide sleeve, with the spring stop located at the end of the output shaft fixed guide sleeve. The spring is fitted onto the output shaft fixed guide sleeve and is located between the anti-torque seat and the spring stop. The spring is in a compressed state, with one end connected to the anti-torque seat and the other end connected to the spring stop.

6. The CRTSIII ballastless track slab automatic fine-tuning system according to claim 1, characterized in that, There are four three-phase fine adjusters, which are installed at the four corners of the track plate to be adjusted.

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