Ballastless track bearing platform polishing operation vehicle and operation method

Abstract

The embodiment of the invention provides a ballastless track bearing table polishing operation vehicle and an operation method. Wherein the operation vehicle comprises a flat vehicle, a rail bearing table polishing device, a lifting device and an auxiliary supporting leg device; the rail bearing table polishing device is installed on the flatcar and the frame. The auxiliary supporting legs and the crane supporting legs serve as lifting operation supporting points for lifting operation, in the operation state, the flatcar and the lifting device are located on the line, the rail bearing table grinding device is located on the adjacent line, and a rail bearing table of a ballastless track on the adjacent line is ground; the lifting device and the auxiliary supporting leg device are installed on the flatcar and the frame. And the hoisting device is used for hoisting the rail bearing table polishing device to an adjacent line from the flat car of the line for rail bearing table polishing operation, and hoisting the rail bearing table polishing device to the flat car of the line from the adjacent line. According to the rail bearing table polishing equipment, an adjacent line operation mode is adopted, rail bearing table polishing operation can be carried out more efficiently with high quality, the reliability and safety of operation line construction are improved, and the construction requirements of high-speed railway curve ultrahigh sections can be met.

Description

Technical Field

[0001] The present application relates to the field of railway engineering maintenance and repair, and in particular to a ballastless track support platform grinding operation vehicle and operation method. Background Art

[0002] When high-speed trains are running normally on the line, they are highly sensitive to the TQI (Track Quality Index) value. Therefore, high-speed railways have high requirements for factors that affect the TQI value, such as track elevation, track direction, track gauge, level, and triangular pits. Due to the long-term operation of high-speed railways after their completion, the railway lines have different degrees of defects, which will cause changes in the track quality index value. After the TQI value changes, maintenance and repair of the high-speed railway to restore the TQI value is a necessary means to ensure high-speed driving safety.

[0003] If the track quality cannot meet the normal operation requirements of high-speed trains due to the arching of the track slab, the track bearing platform needs to be reprocessed and repaired to ensure that the repaired track bearing platform can meet the line quality requirements of high-speed train operation. If the track quality index value changes due to small settlement and arching, the track quality index value can be restored by adjusting the rail fastener system to ensure driving safety.

[0004] For sections with large arching, which has exceeded the adjustment range of the rail fastener system, the current maintenance and construction methods are: one is to rebuild the track slab or rebuild the tunnel invert; the other is the track support grinding method; rebuilding the track slab or rebuilding the tunnel invert is to manually remove the ballast slab and roadbed under the sleepers, and rebuild the roadbed and ballast slab in the tunnel; however, this method has the disadvantages of long construction period, large number of construction personnel, difficulty in construction organization, and high maintenance cost.

[0005] The track support grinding method can reduce the track elevation by grinding the track support, thereby achieving the track smoothness requirement and improving the line operation quality. At present, Patent No. CN218026956U discloses a ballastless track track support milling and grinding vehicle that can perform track support grinding operations; however, the vehicle requires two identical vehicles to be connected during construction to meet the high-speed rail construction organization requirements. It has the following disadvantages: 1. The vehicle is only equipped with a single crane, and when the crane fails and cannot be used, there is a lack of spare cranes to recover the grinding device; 2. The vehicle cannot meet the requirements of high-speed railway superelevation construction operations; 3. During the construction of the vehicle, more pads need to be added to improve the reliability of its lifting process.

[0006] In view of this, this application is hereby filed. Summary of the invention

[0007] In order to solve one of the above-mentioned technical defects, a ballastless track support platform grinding operation vehicle and operation method are provided in the embodiments of the present application.

[0008] According to a first aspect of an embodiment of the present application, there is provided a ballastless track support rail grinding vehicle, comprising:

[0009] Flat car;

[0010] The rail support platform grinding device is installed on the flat car; in the operating state, the rail support platform grinding device is located on the adjacent line to grind the rail support platform of the ballastless track;

[0011] A lifting device is installed on the flat car; it is used to lift the rail support platform grinding device from the flat car to the adjacent line, and to lift the rail support platform grinding device from the adjacent line to the flat car;

[0012] Auxiliary outrigger device, installed on the flat car; used as a force point support during lifting operations to carry out hoisting operations.

[0013] According to a second aspect of an embodiment of the present application, a method for grinding a ballastless track support rail is provided, comprising:

[0014] Pull the flat car to the rail support area to be polished;

[0015] The lifting device hoists the rail bearing platform grinding device from the flat car to the adjacent line;

[0016] The track bearing platform grinding device carries out grinding operations on the track bearing platforms of ballastless track on the adjacent line.

[0017] The technical solution provided in the embodiment of the present application has the following beneficial effects:

[0018] The technical solution provided in the embodiment of the present application includes a flat car and a frame, a rail support grinding device, a lifting device and an auxiliary leg device; the rail support grinding device is installed on the flat car and the frame; in the operating state, the rail support grinding device is located on the adjacent line of the ballastless track to perform grinding operations on the rail support of the ballastless track; the lifting device is installed on the flat car; it is used to lift the rail support grinding device from the flat car to the adjacent line of the track to be polished, and to lift the rail support grinding device from the adjacent line of the track to be polished to the flat car. When operating on a straight line, the leveling frame does not need to be leveled left and right; when operating in a curved super-elevated section, it is necessary to first use the leveling frame to level left and right before the grinding device lifting operation can be carried out. By adopting the adjacent line operation mode of the rail support grinding equipment, the rail support grinding operation can be carried out more efficiently and with higher quality, which improves the reliability and safety of the operating line construction and can meet the construction needs of the curved super-elevated section of the high-speed railway; at the same time, a ballastless track rail support grinding operation method is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of the ballastless track support platform grinding vehicle provided in this application;

[0021] Figure 2 This is a schematic diagram of the operation mode of grinding the adjacent line of the ballastless track support platform for this application;

[0022] Figure 3 This is a schematic diagram of the structure of the ballastless track support platform grinding car flat car of this application;

[0023] Figure 4 This is a schematic diagram of the upper and lower frame structures when the leveling frame of this application is installed on a flat car;

[0024] Figure 5 Schematic diagram of the upper and lower frame structure when the leveling frame is leveled to the left for this application;

[0025] Figure 6 Schematic diagram of the upper and lower frame structure when the leveling frame is leveled to the right for this application;

[0026] Figure 7 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0027] Figure 8 A schematic diagram of a ballastless track support platform grinding structure provided in an embodiment of the present application;

[0028] in:

[0029] 1. Flat car; 101. Leveling frame; 111. Bottom connecting frame; 111-1. Pin hinge seat; 112. Upper supporting frame; 112-1. Upper and lower frame connecting beam; 112-2. Lifting cylinder; 113. Connecting seat; 114. Connecting screw; 115. Connecting shaft; 102. End frame; 121. Groove;

[0030] 2. Rail support table grinding device; 201. Rail support table grinding frame; 202. Traveling wheel; 203. Grinding mechanism 203;

[0031] 3. Lifting device; 301. Main crane; 302. Standby crane;

[0032] 4. Auxiliary outriggers;

[0033] 5. Generator set;

[0034] 6. Cooling water system;

[0035] 7. Pipeline retracting and releasing device; DETAILED DESCRIPTION

[0036] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] Figure 1 A schematic diagram of the structure of the ballastless track support platform grinding vehicle provided in this application; Figure 2 This is a schematic diagram of the operation mode of grinding the adjacent line of the ballastless track support platform for this application; Figure 3 This is a schematic diagram of the structure of the ballastless track support platform grinding car flat car in this application; Figure 4 This is a schematic diagram of the upper and lower frame structures when the leveling frame of this application is installed on a flat car; Figure 5 Schematic diagram of the upper and lower frame structure when the leveling frame is leveled to the left for this application;

[0038] Figure 6 Schematic diagram of the upper and lower frame structure when the leveling frame is leveled to the right for this application; Figure 7 for Figure 3 A schematic diagram of the enlarged structure of the middle part A; Figure 8 A schematic diagram of a ballastless track support platform grinding structure provided in an embodiment of the present application;

[0039] The present application sets the direction extending along the track as the longitudinal direction, the direction extending along the sleeper as the transverse direction, the direction perpendicular to the plane where the transverse and longitudinal directions are located as the vertical direction, and the grinding operation direction as the front direction.

[0040] like Figure 1-Figure 8 As shown, the embodiment of the present application provides a ballastless track rail platform grinding vehicle, including a flat car and a frame 1, a rail platform grinding device 2 and a lifting device 3; the rail platform grinding device 2 is installed on the flat car and the frame 1; in the operating state, the rail platform grinding device 2 is located on the adjacent line of the ballastless track, and performs grinding operations on the rail platform of the ballastless track; the lifting device 3 is installed on the flat car and the frame 1; it is used to hoist the rail platform grinding device 2 from the flat car and the frame 1 to the adjacent line rail platform track plate to be polished, and to hoist the rail platform grinding device 2 from the adjacent line rail platform track plate to be polished to the flat car and the frame 1. When hoisting operations are performed on a straight line, the flat car and the frame 1 do not need to be leveled left and right; when hoisting operations are performed on a curve with superelevation, the flat car and the frame 1 need to be leveled left and right using a leveling frame before the hoisting operation of the grinding device can be carried out.

[0041] In specific implementation, the ballastless track support platform grinding vehicle provided in the embodiment of the present application is mainly used for ballastless track support platform grinding operations. The flat car and frame 1 serve as the bearing body of the ballastless track support platform grinding vehicle. The flat car has a bogie, a car body, a braking system, a coupler buffer device and other systems. The frame is divided into a leveling frame, a front frame component, and a rear frame component, which can provide the necessary bearing body and basic platform for the transportation and operation of the vehicle. When the vehicle is attached and transported back, the flat car and frame 1 serve as the bearing body of the whole set of equipment, and the whole set of equipment can be conveniently transported; when the vehicle is in construction, the flat car 1, as the basis of the construction organization, is in a parked state, maintains water and power supply, and maintains normal grounding, providing the necessary foundation for the entire construction operation.

[0042] The track bearing platform grinding device is hoisted to the track plate of the track bearing platform to be polished on the adjacent line by the lifting device 3; the adjacent line operation mode is adopted, so that the track bearing platform grinding operation can be carried out more efficiently and with higher quality; the layout mode of 301 main hoist and 302 spare crane is adopted, and the two cranes can ensure the lifting and recovery of the grinding device, and auxiliary legs 4 are provided. The auxiliary legs 4 effectively support the ground during the lifting operation, thereby improving the reliability and safety of the high-speed railway operation line construction; the leveling frame is used for left and right leveling, which can meet the construction needs of the super-elevated section of the high-speed railway curve; at the same time, a ballastless track track bearing platform grinding operation method is provided.

[0043] like Figure 3 and Figure 4 As shown, based on the above solution, the embodiment of the present application provides a specific implementation of a flat car, and the flat car 1 includes a leveling frame 101 and an end frame 102;

[0044] The leveling frame 101 is used to carry the rail platform grinding device 2 and the lifting device 3, and can also be used to adjust the level of equipment. When working in a curved super-high section, the leveling frame 101 needs to adjust the entire lifting operation components to a horizontal level before the lifting operation can be carried out; the end frame 102 is arranged at the longitudinal ends of the leveling frame 101.

[0045] Specifically, the flat car and the frame 1 as a load-bearing frame are three-section split structures, which can be quickly assembled and disassembled. Figure 3 As shown. The middle leveling frame 101 has the function of bearing and leveling, and the end frames 102 at the front and rear ends have the function of bearing. In practice, the leveling frame 101 has the functions of left leveling and right leveling. According to the superelevation of the inside and outside of the line, automatic leveling is achieved through the control and switching of the remote control handle.

[0046] As a specific implementation, the flat car 1 can be a NX70 flat car, or other flat car structures that meet the requirements can be used.

[0047] On the basis of the above solution, the leveling frame 101 includes a bottom connecting frame 101, an upper supporting frame 112 and a connecting structure as shown in the figure.

[0048] The two longitudinal ends of the bottom connecting frame 111 are connected to the end frames 102, and a rectangular frame is provided in the middle of the bottom connecting frame 111 and the end frame 102, which is used to realize the lateral and longitudinal constraints of the flat car container lock; the upper support frame 112 is arranged above the bottom connecting frame 111, and the connecting structure 113 is arranged on both lateral sides of the leveling frame, which is used to realize the secondary mechanical locking of the bottom connecting frame and the upper supporting frame, which can realize the secondary mechanical locking in the non-leveling state, and can also realize the secondary mechanical locking in the leveling state.

[0049] like Figure 4 The diagram shown is a non-working state diagram; Figure 5 The diagram shows the left leveling state;

[0050] Specifically, an upper and lower frame connecting beam 112-1 is arranged between the bottom connecting frame 101 and the upper supporting frame 112; and a lifting cylinder is arranged on the left and right sides of the upper and lower frame connecting beam 112-1; the main body of the lifting cylinder is fixedly connected to the upper supporting frame 112; and the output end of the lifting cylinder is hinged to the bottom connecting frame 111.

[0051] As a specific implementation method, lifting cylinders 112-2 are provided on the left and right sides of the upper and lower frame connecting beams 112-1; when in the left leveling state, the lifting cylinder 112-2 on the left side lifts up the upper support frame 112 and the upper and lower frame connecting beams 112-1 at the same time, and the upper and lower frame connecting beams 112-1 and the upper support frame 112 move together; when in the right leveling state, the lifting cylinder 112-2 on the right side lifts up the upper support frame 112, and the upper and lower frame connecting beams 112-1 and the bottom connecting frame 111 remain stationary, and only the upper support frame 112 moves upward.

[0052] In a specific implementation, the articulation method can be achieved by connecting the upper support frame 112 to the left and right through a pin-axis articulated structure such as a pin-axis articulated seat 111 - 1 , an upper and lower frame connecting beam 112 - 1 , and a jacking cylinder 112 - 2 .

[0053] In a specific implementation, the connection structure includes a connection seat 113 and a connection screw 114. The connection seat 113 is arranged on the bottom connection frame 111, and the connection screw 114 is arranged on the upper support frame 112. The connection seat 113 is provided with an opening facing the side away from the leveling frame 101; the connection screw 114 can rotate along the pin of the mounting seat; a connection shaft 115 is arranged on the connection screw 114 corresponding to the connection seat 113; connection holes are arranged on the connection shaft 115 and the connection seat 113; and a connection bolt is inserted into the connection hole to fix the connection shaft 115 and the connection seat 113.

[0054] On the basis of the above scheme, a groove 121 is provided at one end of the end frame 102 facing the leveling frame 101; protrusions are provided at both longitudinal ends of the bottom connection frame 111 corresponding to the groove 121; the matching surfaces of the groove 121 and the protrusion are arranged at an angle. Specifically, the longitudinal connection between the frames adopts a "concave-convex" structure connection, which can realize rapid assembly and rapid disassembly. The matching surfaces of the groove 121 and the protrusion are arranged at an angle, and the constraint matching position has a certain angle relative to the vertical plane to ensure good contact after landing.

[0055] like Figure 8 As shown, based on the above scheme, the embodiment of the present application provides a specific implementation of a rail support platform grinding device, and the rail support platform grinding device 2 includes a rail support platform grinding frame 201, running wheels 202 and a grinding mechanism 203.

[0056] The running wheel 202 is arranged below the rail support platform grinding frame 201; the grinding mechanism 203 is arranged on the rail support platform grinding frame 201, and is used for grinding the ballastless track rail support platform.

[0057] like Figure 1 and Figure 2 As shown, based on the above solution, an embodiment of the present application provides a specific implementation of a lifting device 3, and the lifting device 3 includes a main crane 301 and a standby crane 302.

[0058] The main crane 301 is arranged on the flat car 1 and located at one longitudinal end of the rail support platform grinding device 2 ; the standby crane 302 is arranged on the flat car 1 and located at the other longitudinal end of the rail support platform grinding device 2 .

[0059] Specifically, the main crane 301 and the backup crane 302 are arranged at both ends of the rail-supporting platform grinding device 2, and are both installed on the leveling frame 101. The two cranes are backup for each other, and one crane is normally used for lifting operations. The crane has its own flip legs, and the flip legs have functions such as horizontal extension, vertical flip, and vertical support. The horizontal extension is provided with a second-level or higher mechanical locking position. The crane is a straight-arm hydraulic telescopic type, with 360° rotation, amplitude change, extension, elevation and other functions, and is specially used for lifting and grinding devices on rails or flat cars. Operations can be performed according to the location requirements of the grinding device. The telescopic arm can lift the rail-supporting platform grinding device 2 from the vehicle and place it on the ballastless track line. Special hoists are required to assist in lifting operations.

[0060] On the basis of the above scheme, the ballastless track support platform grinding vehicle provided in the embodiment of the present application further includes auxiliary legs 4; the auxiliary legs 4 are arranged at both ends of the leveling frame 101 in the longitudinal direction; they are used for auxiliary support during lifting operations, and as a reliable support point for the force support of the entire lifting operation, ensure that the entire set of equipment is stable and reliable during the lifting operation. The auxiliary legs have functions such as horizontal extension, vertical flipping, and vertical support, and each action is executed by the remote control handle.

[0061] Specifically, the auxiliary outrigger 4 has the functions of horizontal extension, vertical flipping, vertical support, etc. The auxiliary outrigger 4 with these functions belongs to the prior art, so the specific structure of the auxiliary outrigger 4 is not described in detail. The auxiliary outrigger 4 is installed at both ends of the leveling frame 101, and the horizontal extension is provided with more than two levels of mechanical locking positions, and the extension length of the outrigger can be adjusted and locked according to the line conditions, which can meet the needs of different operation scenes such as roadbed, tunnel, bridge, etc.

[0062] On the basis of the above scheme, the ballastless track support platform grinding vehicle provided in the embodiment of the present application also includes a generator set 5, a cooling water system 6 and a pipeline retracting device 7. The generator set 5 is arranged on the flat car 1, and is used to provide AC power for the ballastless track support platform grinding vehicle. The cooling water system 6 is used to provide pressurized water for the ballastless track support platform grinding vehicle; the cooling water system includes a water tank and a water pump; the generator set 5 and the cooling water system 6 provide electric energy and water to the grinding device through the pipeline retracting device 7, and the pipeline retracting device 7 is installed at the end of the vehicle, and the cables and water pipes can be extended to both sides of the vehicle body according to the needs, so as to realize the energy supply requirements of the grinding device operation on any side of the vehicle body.

[0063] Specifically, the rail support platform grinding device has no self-propelled capability and needs to be towed by a rail vehicle to the work site, and has its own generator set to provide power.

[0064] Specifically, the water pump includes a working pump and a standby pump connected in parallel. The working pump provides the water pressure and water volume required for the grinding operation, and the standby pump is used to provide the water pressure and water volume required for the grinding operation in the standby state. The water tank is provided with a water level gauge, multiple water inlets, a top cover, multiple drainage ports, a filter, an observation port and an escalator, etc. Three water pumps are provided to provide pressurized water for the system. The three water pumps are connected in parallel. Two water pumps are used to provide pressurized water in normal operation, which can meet the water pressure and water volume requirements of the grinding operation, and the other water pump is used as a standby.

[0065] Specifically, the pipeline retracting device 7 is fixedly installed at the end of the vehicle, and is provided with at least one water pump input interface, which will not rotate with the rotation of the device, at least one power input interface, at least one cooling water output interface, and at least one power output interface, which will rotate with the rotation of the device. The pipeline retracting device 7 is an integrated structure in which the electrical slip ring and the rotary joint are independently arranged. It is driven by a motor + reducer device to realize the winding and release of cables and water pipes. It can provide uninterrupted water and power supply during the winding and release process. The connection with the device adopts a quick plug connector to facilitate quick disassembly and assembly.

[0066] The present application also provides a method for grinding a ballastless track support rail, comprising the following steps:

[0067] (1) Pull the flat car 1 to the track area to be polished;

[0068] (2) The lifting device 3 hoists the rail support platform grinding device 2 from the flat car and the frame 1 to the rail plate of the rail support platform to be ground on the adjacent line;

[0069] (3) The rail support grinding device 2 performs grinding operations on the rail support of the ballastless track on the adjacent line.

[0070] In the specific implementation, the auxiliary legs 4 and the legs of the lifting device 3 are first extended to support the ballastless track line, the vehicle reinforcement measures are released, and whether to level the vehicle is selected according to the superelevation of the line. Then, the main crane 301 is used to lift the rail bearing platform grinding device 2 onto the adjacent ballastless track line. The pipeline retracting and releasing device 7 is used as an energy transmission device to provide the necessary power supply and pressurized water. The rail bearing platform grinding device 2 performs the rail bearing platform grinding operation on the adjacent ballastless track line. After the rail bearing platform grinding operation is completed, the main crane 301 lifts the rail bearing platform grinding device 2 back to the initial position and fixes it, restoring the vehicle to the transportation state.

[0071] Based on the above, the ballastless track track platform grinding vehicle can perform grinding operations on the ballastless track track platform. The use of the track platform grinding vehicle can carry out track platform grinding operations more reliably, safely, efficiently and with high quality. It can adapt to the construction needs of high-speed railway curved super-elevation sections and has significant advantages such as wide coverage, high grinding efficiency, high construction safety, good grinding quality, short construction period and low construction cost.

[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0075] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0076] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A ballastless track support rail grinding vehicle, characterized in that: include: Flat car; Rail support table grinding device, installed on the flat car; In the operating state, the rail support grinding device is located on the adjacent line to grind the rail support of the ballastless track; A lifting device is installed on the flat car; it is used to lift the rail support platform grinding device from the flat car to the adjacent line, and to lift the rail support platform grinding device from the adjacent line to the flat car; Auxiliary outrigger device, installed on the flat car; used as a force point support during lifting operations to carry out hoisting operations.

2. The ballastless track support rail grinding vehicle according to claim 1, characterized in that: The flat car comprises: Flat car body; The leveling frame is used to carry the rail platform grinding device and the lifting device, and to adjust the flat car body to a horizontal position when the curve is super-high, so as to carry out the lifting operation; The end frames are arranged at both longitudinal ends of the leveling frame and are used to carry auxiliary equipment.

3. The ballastless track support rail grinding vehicle according to claim 2, characterized in that: The leveling framework includes: A bottom connecting frame, with both longitudinal ends connected to the end frames; An upper supporting frame, arranged above the bottom connecting frame; The upper and lower frame connecting beam is arranged between the bottom connecting frame and the upper supporting frame; the left and right sides of the upper and lower frame connecting beam are provided with a jacking oil cylinder; the main body of the jacking oil cylinder is fixedly connected to the upper supporting frame; the output end of the jacking oil cylinder is hinged to the bottom connecting frame; The connecting structure is arranged on both lateral sides of the leveling frame and is used to connect the bottom connecting frame and the upper supporting frame for mechanical locking when in the non-leveling working position.

4. The ballastless track support rail grinding vehicle according to claim 3, characterized in that: The connection structure comprises: A connecting seat, arranged between the bottom connecting frame and the upper supporting frame, wherein the opening of the connecting seat faces a side away from the leveling frame; The connecting screw rod extends in the vertical direction; a connecting shaft is arranged on the connecting screw rod corresponding to the connecting seat; connecting holes are arranged on the connecting shaft and the connecting seat; and a connecting bolt is embedded in the connecting hole to fix the connecting shaft and the connecting seat.

5. The ballastless track support rail grinding vehicle according to claim 3, characterized in that: A groove is formed at one end of the end frame facing the leveling frame; protrusions are formed at both longitudinal ends of the upper support frame corresponding to the groove; and the matching surfaces of the groove and the protrusion are inclined.

6. The ballastless track support rail grinding vehicle according to claim 1, characterized in that: The rail support platform grinding device comprises: Rail support table grinding frame; The running wheel is arranged below the rail support platform grinding frame and is used for the rail support platform grinding device to move on the ballastless track plate; The grinding mechanism is arranged on the rail support platform grinding frame and is used for grinding the rail support platform of the ballastless track.

7. The ballastless track support rail grinding vehicle according to claim 1, characterized in that: The lifting device comprises: The main crane is arranged on the flat car and is located at one longitudinal end of the rail support platform grinding device; The spare crane is arranged on the flat car and is located at the other longitudinal end of the rail support platform grinding device.

8. The ballastless track support rail grinding vehicle according to claim 2, characterized in that: Also includes: Auxiliary outriggers are arranged on the leveling frame; during lifting operations, they are used to support the ground and serve as the force support point for the lifting operation to form a stable force support.

9. The ballastless track support rail grinding vehicle according to claim 1, characterized in that: Also includes: The generator set is installed on the flat car and is used to provide AC power for the ballastless track bearing platform grinding car.

10. The ballastless track support rail grinding vehicle according to claim 1, characterized in that: Also includes: A cooling water system is used to provide pressurized water for the ballastless track bearing platform grinding vehicle; the cooling water system includes a water storage tank and a water pump; The water pump comprises a working pump and a standby pump connected in parallel. The working pump provides the water pressure and water volume required for the grinding operation, and the standby pump is used to provide the water pressure and water volume required for the grinding operation in a standby state.

11. The ballastless track support rail grinding vehicle according to claim 10, characterized in that: Also includes: The pipeline retracting and releasing device is arranged at the end of the flat car; the pipeline retracting and releasing device is provided with a water pump interface and a power supply interface; water supply to the ballastless track support platform grinding car is realized through the water pump interface; power supply to the ballastless track support platform grinding car is realized through the power supply interface.

12. A method for grinding a ballastless track support rail, characterized in that: include: Pull the flat car to the rail support area to be polished; The lifting device hoists the rail bearing platform grinding device from the flat car to the adjacent line; The track bearing platform grinding device carries out grinding operations on the track bearing platform of the ballastless track at the adjacent line of the ballastless track.

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