CN101624022A - Normal conducting electromagnetic levitation type rail polling car - Google Patents

Abstract

The invention provides a constant conduction electromagnetic suspension type track inspection vehicle, which is equipped with a dual traction mode of long stator linear motor traction and outer rotor motor support wheel traction, and can realize 200km/h high-speed inspection and low-speed 60km/h track detection. The inspection vehicle is equipped with several suspension frames, and the formed running mechanism is also equipped with several outer rotor motor support wheels. An operation platform is set at both ends of the shortened carriage structure by using a lengthened carriage floor, and a lifting maintenance platform is set on the operation platform. and vehicle-to-ground communication equipment. A high-speed video surveillance system and a high-speed non-contact track detection device are installed in the specially designed lower skirt of the front of the car, which can realize high-speed real-time processing of detection data, timely reporting of any faults on the track, and timely processing.

Description

Normally conductive electromagnetic levitation track inspection vehicle

technical field

The invention belongs to special vehicles in the field of high-speed maglev transportation, and relates to a track inspection vehicle, in particular to a constant conduction electromagnetic levitation track inspection vehicle.

Background technique

The invention of high-speed maglev transportation technology in the last century has attracted worldwide attention. After the completion and operation of the Shanghai Maglev Demonstration Line, it has achieved the effect of fast, safe and environmentally friendly passenger transportation.

Since the conventional maglev train is used for passenger traffic at a speed of 500km/h with a suspension gap of 10.0mm, there must be no negligence in the safety guarantee of the train operation. Therefore, the high-speed maglev transportation system as a passenger line must carry out track inspection work before the passenger train runs to ensure that there are no foreign objects on the line track, as well as long stator coils, power supply rails, positioning sign boards and various functional surfaces during installation and use. No deformation. Specifically, as shown in FIG. 1 , it is a schematic structural diagram of the track 7 of the high-speed constant conduction electromagnetic levitation transportation system. The main structural part 7f of the track 7 is a concrete structure, and the track 7 has various functional surfaces, including: a sliding surface 7b, a guide surface 7c, and a stator surface 7d, because these functional surfaces may be deformed due to various reasons. Poor, loose, etc., and sometimes foreign matter remains on the open track, so it is required to conduct track inspection before the maglev train runs to prevent train safety accidents. On the other hand, the long stator coils installed on the track also need to be inspected to prevent falling cables from being squeezed into the train's levitating magnet module, causing damage to vehicle components and causing accidents. Therefore, in the high-speed maglev transportation technology, it is necessary to provide a track inspection vehicle to complete the above-mentioned safety inspection work.

Because the conventional track inspection vehicles used in the past are driven by a support wheel structure, they are pulled by a diesel (or gasoline) engine, and the set guide support wheels are driven to run on the track. Since the support wheel structure cannot meet the conditions of high-speed operation, the track inspection time is lengthened. For the high-speed maglev transportation system with a long route, if a long-term outage "skylight" time is reserved for track inspection, It will greatly affect the transportation capacity of the passenger transport line, so it is difficult for the track inspection vehicle driven by the support wheel structure to adapt to the service conditions of the longer passenger transport trunk line.

Therefore, considering the use of the running structure of the constant-conduction electromagnetic levitation vehicle with its own high-speed operation capability, it adopts the long-stator linear motor traction mode, and on the basis of it, the above-mentioned support wheel structure is set to realize the low-speed operation detection function, so as to realize track inspection. The inspection vehicle has the ability of high-speed inspection and low-speed inspection at the same time, shortening the inspection time. Wherein, the running structure of the conventional electromagnetic levitation vehicle is composed of a suspension frame and a suspension magnet, a guide magnet, and an eddy current braking magnet arranged on the suspension frame; the running structure is guided by the guide magnet to make the suspension frame run During the process, it turns in time, and the train also has an eddy current braking mode through the eddy current braking magnet.

Therefore, first of all, it is necessary to provide a track inspection vehicle, which is compatible with the long stator linear motor traction mode and the motor support wheel traction mode, so that the inspection vehicle has the functions of high-speed inspection and low-speed detection at the same time, clearing the track and inspecting various functional surfaces failure conditions.

In addition, in the requirements of the maglev transportation system, the track inspection vehicle must also have the following other functions:

1) Remove foreign matter on the track;

2) If a track fault is found, it should be able to carry out maintenance and treatment, and allow the train to pass in a short time;

3) It also has the task of rescuing trains in accidents;

4) Accurately measure track deviation to provide basis for line adjustment.

However, the above-mentioned requirements cannot be integrated on a patrol vehicle. The body structure of the original high-speed maglev passenger vehicle has chosen the structure of aluminum alloy extruded profiles and sandwich aluminum alloy composite panels, including the equipment interlayer as the load-bearing structure. However, such a car body structure does not meet the structural requirements of the track inspection car. First of all, the equipment interlayer cannot be realized, and the entire load of the vehicle must be borne by the compartment floor. The second is that the space occupied by the motor support wheels on the running mechanism must be considered, which requires that some on-board electrical equipment must be installed in the compartment.

At present, there is an urgent need for a body structure of a maglev track inspection vehicle that is light in weight, reasonable in structure, meets multiple functional requirements, and has appropriate strength and rigidity. As far as the existing maglev technology summarized above is concerned, it is very necessary to provide a new type of track inspection vehicle compatible with dual traction modes (long stator synchronous linear motor traction and motor support wheel traction), which can realize high-speed maglev transportation system track Rapid inspection and low-speed measurement, and self-rescue operation in case of any failure, necessary handling of accidents on the line track, and adapting to the requirements of the working environment for track inspection of long trunk lines.

Contents of the invention

The purpose of the present invention is to provide a constant conduction electromagnetic levitation track inspection car, which can realize: 1) the dual traction mode compatible with the traction of the long stator linear motor and the traction of the outer rotor motor support wheel, so that the track inspection car has both High-speed inspection and low-speed inspection functions; 2) Under fault conditions, it can rely on its own walking wheels to pull the track inspection vehicle back to the maintenance base or adjacent stations, with self-rescue capabilities, and can rescue passenger trains in accidents.

In order to achieve the above object, the present invention provides a constant conduction electromagnetic levitation track inspection car, which includes a frame car body and a running structure arranged at the bottom of the frame car body;

The frame body includes:

compartment floor;

a compartment structure, which is arranged on the compartment floor;

The lifting maintenance platform is arranged on the bottom plate of the carriage and is located at both ends of the carriage structure;

Vehicle-to-ground communication equipment, which is installed on the floor of the carriage and located at both ends of the carriage structure;

The walking structure includes several sequentially connected suspension frames, a long stator linear motor traction device, and an outer rotor motor driven support wheel device;

The suspension frame is connected to the lower part of the bottom plate;

The long stator linear motor traction device includes a suspension magnet module installed on the suspension frame to realize the high-speed operation of the track inspection vehicle under the stator linear motor traction mode;

The outer rotor motor-driven support wheel device includes outer rotor motor support wheels installed on both sides of the suspension frame to realize the low-speed operation of the track inspection vehicle in the traction mode of the outer rotor motor support wheels.

Wherein, the bottom plate of the carriage adopts an aluminum alloy extruded profile frame structure; the described carriage structure adopts a combined frame structure of an aluminum alloy extruded profile and a sandwich aluminum alloy structural plate;

The frame body also includes:

Diesel generator sets are arranged symmetrically on the carriage floor and within the carriage structure, thereby forming a vehicle-mounted hybrid power grid, without the power supply mode of the current receiver of the original vehicle (passenger maglev train);

The exterior of the diesel generator set is provided with a soundproof cover, which is fixed and sealed on the floor of the carriage to reduce the interior noise caused by the diesel generator set, so that the interior noise is controlled within the range allowed by the relevant technical standards;

The compartment floor includes:

The anti-collision devices installed at both ends of the carriage floor are used for traction of the patrol car and removal of foreign objects on the track;

The coupler set on the anti-collision device is used for traction and rescue of other vehicles;

The apron on the carriage floor, which is arranged on both sides of the carriage floor, is used as an inspection cover for equipment installed at the lower part of the carriage floor, and also has the ability to withstand the aerodynamic load generated when other trains meet at a speed of 500km/h;

The compartment structure includes:

a car body, which is shorter than the structure of the original car;

The front, which is fixed at both ends of the car body, has a front door, which is convenient for operators to enter;

The side doors of the compartment are arranged on two sides of the vehicle body;

The roof air conditioner, which is installed on the top of the car body, overcomes the trouble of arranging two air-conditioning units in the equipment interlayer of the original car (passenger maglev train). Strength and stiffness requirements on the roof;

The vehicle-mounted electrical equipment installation space is arranged on both sides of the car body, and most of the vehicle-mounted electrical equipment is installed in the vehicle-mounted electrical equipment installation space, thereby canceling the equipment interlayer of the original vehicle (passenger maglev train) and leaving space The installation space for the drive wheel of the outer rotor motor;

An operating platform, which is arranged at both ends of the vehicle body and located in front of the front of the vehicle, on which the lifting maintenance platform and vehicle-ground communication equipment are arranged;

The lifting maintenance platform includes a platform main body and a platform bracket;

The frame body also includes:

The lower skirt of the front of the car is arranged on the two sides of the floor of the car and is located at the front of the car;

A monitoring device, which is arranged on the inner side of the lower skirt of the front of the car, conforms to the shape of the lower skirt of the front of the car, and the monitoring device includes a high-speed video surveillance system and a high-speed non-contact track detection device;

Wherein, the suspension magnet module includes several standard suspension magnet modules and several elongated suspension magnet modules arranged at both ends of the walking structure.

The long-stator linear motor traction device also includes several guide magnet modules installed on the suspension frame, which guide and position the inspection vehicle when it runs along the maglev track at high and low speeds.

The long stator linear motor traction device also includes several eddy current braking magnet modules installed on the suspension frame, which are used to realize the eddy current braking mode of the track inspection vehicle.

The outer rotor motor support wheel is guided by the guide magnet module to perform steering movement along with the steering of the suspension frame.

The outer rotor motor-driven support wheel device also includes a gas-liquid conversion brake device installed outside the outer rotor motor support wheel to realize the gas-hydraulic conversion disc brake mode of the track inspection vehicle.

The traveling structure of the magnetic levitation track inspection vehicle provided by the present invention realizes a double traction mode, that is, long stator linear motor traction and outer rotor motor support wheel traction. Therefore, the magnetic levitation track inspection car of the present invention can rely on the traction of the long stator linear motor in the suspended state, and carry out high-speed inspection at a speed of 200km/h, and can also be in the state where the motor support wheel is in contact with the rail sliding surface ( Lost suspension state), rely on the external rotor motor support wheel traction, and conduct low-speed inspection at a speed of 60km/h to find the track fault point.

At the same time, on the basis of such a dual traction mode, the track inspection vehicle of the present invention can realize self-rescue capability under any fault conditions, that is, the track inspection vehicle can rely on the vehicle-mounted outer motor support wheel as the driving power to return to the Maintenance base or near the station.

The traveling structure of the maglev track inspection vehicle provided by the present invention has four braking modes, including:

1. The reverse traction braking mode of the linear motor of the inspection vehicle realized by the above-mentioned suspension magnet module and the long stator coil installed on the track, which feeds the reverse traction current to the long stator coil of the track through the ground traction power supply station , forcing the inspection car to slow down and brake.

2. The eddy-current braking mode of the inspection vehicle realized by the eddy-current braking magnet module described above forces the inspection vehicle to operate at multiple levels by passing currents of multiple levels to the vehicle-mounted eddy-current braking magnet module. Deceleration braking.

3. The outer rotor motor wheel reverse braking mode realized by the outer rotor motor driven support wheel device, which forces the inspection vehicle to decelerate by passing a controllable reverse rotation current to the outer rotor motor driven support wheel device brake.

4. The gas-hydraulic conversion disc brake mode realized by the gas-hydraulic conversion brake disc uses the gas-hydraulic conversion brake disc on the outer rotor motor support wheel to force the inspection vehicle to decelerate until parking.

The above four braking modes can enable the track inspection vehicle to have the function of using different methods to stop flexibly and accurately when it finds a track accident point, and adapt to the safe operation function on the track line.

Based on the present invention, the outer rotor motor support wheel itself is not provided with a turning guide device, so the motor support wheel fixed on the suspension frame will follow the steering of the suspension frame to perform a steering movement that adapts to the curve of the line, that is, follow the guide The guide of the magnet module is adjusted in the running direction, so that the guide magnet module is independent of the suspension magnet module, and still maintains the working mode in the low-speed detection mode.

Description of drawings

Fig. 1 is a track cross-sectional schematic diagram of a high-speed constant conduction electromagnetic levitation transportation system;

Fig. 2 is the overall structure schematic diagram of the conventional electromagnetic levitation track inspection car of the present invention;

Fig. 3 is a schematic cross-sectional view of the conventional electromagnetic levitation track inspection vehicle of the present invention;

Fig. 4 is a schematic diagram of the running structure of the conventional electromagnetic levitation track inspection vehicle of the present invention;

Fig. 5 is a schematic diagram of the compartment structure of the conventional electromagnetic levitation track inspection vehicle according to the present invention.

Detailed ways

The preferred embodiment of the present invention will be described in detail below according to FIG. 1 to FIG. 5 .

As shown in Figure 2, the present invention provides a conventional electromagnetic levitation track inspection car, which includes a frame car body and a running structure 2 arranged at the bottom of the frame car body;

As shown in Figure 2, the compartment structure 1 is shorter than that of ordinary high-speed passenger maglev trains. The frame structure is formed by extruding aluminum alloy profiles, and the position of the compartment side doors 1d is moved inward, maintaining the setting of four compartment side doors 1d. The two ends of the compartment are equipped with a front door 1a and two operating platforms 1e. The length of the front 1a is shortened, leaving a space for the operating platform 1e. Four lifting maintenance platforms are arranged in the space of the operating platform 1e. Platform 3 uses aluminum alloy extruded profiles with light weight and sufficient strength to maintain the load capacity of two-man operation and some track maintenance equipment. Due to the relatively short length of the carriages, the dual air-conditioning configuration of the original passenger maglev train is no longer needed. The vehicle-mounted air conditioner 1c is configured on the roof, and only the carriage structure 1 is strengthened to support the load of the vehicle-mounted air conditioner 1c, and ensure the high-speed operation of the inspection vehicle. During operation, there will be no looseness or body strength failure due to aerodynamic problems and vibration problems.

As shown in Figure 3, the lower front skirt 5 is arranged on both sides of the compartment floor 6, and is located at the front 1a. The inner side of the lower front skirt 5 is provided with a high-speed video surveillance system and a high-speed non-contact track detection device. monitoring device.

As shown in Figure 3, the running structure 2 of the conventional electromagnetic levitation track inspection vehicle according to the present invention is fixedly installed on the lower part of the carriage floor 6, as shown in Figure 4, it includes 4 suspension frames 2b connected in sequence, The long stator linear motor traction device and the outer rotor motor drive the supporting wheel device arranged on the suspension frame 2b. Wherein, the suspension frame 2b includes two connected crossbeam frames, and each crossbeam frame is composed of two connected suspension frame crossbeams 2c; the crossbeams 2c are connected to the lower part of the carriage floor 6 of the track inspection vehicle. The long stator linear motor traction device includes 10 standard suspension magnet modules 2e installed on the suspension frame 2b by suspension and 4 extended suspension magnet modules 2g arranged at both ends of the entire walking structure, and also includes installation through hinges 12 guide magnet modules 2f and 2 eddy current brake magnet modules 2d on the suspension frame 2b. The outer rotor motor-driven supporting wheel device is arranged on both sides of the suspension frame 2b, that is, at both ends of the beam 2c of the suspension frame 2b. The outer rotor motor drive support wheel device includes an outer rotor motor support wheel 2a installed and fixed at the two ends of each crossbeam 2c; the outer rotor motor support wheel 2a is guided by the guide magnet module 2f, and is carried out with the steering of the suspension frame 2b. Adapt to the steering movement in the curves of the line. In this embodiment, since 2 outer rotor motor support wheels 2a are installed on each beam, that is, 8 outer rotor motor support wheels 2a are installed on each suspension frame 2b, so a total of 32 outer rotor motor support wheels 2a are finally arranged. The outer rotor motor supports the wheel 2a.

Thus, the traveling structure 2 of the magnetic levitation track inspection vehicle provided by the present invention realizes a dual traction mode, that is, long stator linear motor traction and outer rotor motor support wheel traction. 1 and 4, the outer rotor motor support wheel 2a corresponds to the sliding surface 7b of the track beam 7, the guide magnet module 2f and the eddy current braking magnet module 2d correspond to the guide surface 7c of the track 7, and the suspension magnet modules 2e and 2g Corresponding to the long stator face 7d. When the maglev track inspection vehicle relies on the traction of the long stator linear motor in the suspension state to perform high-speed inspection at a speed of 200km/h, the suspension magnet modules 2e, 2g and the stator surface 7d maintain a suspension gap of about 10.0mm, and the guide The magnet module 2f, the eddy current braking magnet module 2d and the guide surface 7c always maintain a gap of 12.0 mm. When the maglev track inspection vehicle is in the state where the motor support wheel is in contact with the track sliding surface (lost suspension state), it relies on the outer rotor motor support wheel for traction, and performs low-speed detection at a speed of 60km/h to find track fault points. The support wheel 2a is in contact with the sliding surface 7b of the track 7, the suspension magnet modules 2e and 2g stop working and maintain a suspension gap of about 16.0mm with the stator surface 7d, but since the outer rotor motor support wheel 2a itself is not provided with a guide rotation structure, Therefore, the motor support wheel 2a fixed on the suspension frame 2b will follow the steering of the suspension frame 2b to perform the steering motion to adapt to the curve of the line. Determine the steering of the motor support wheel 2a, so the guide magnet module 2f is independent of the suspension magnet module, it is not only in the working state when the inspection vehicle is running at high speed, but also continues to work when running at low speed, and is connected with the eddy current brake magnet module There is always a gap of 12.0mm between 2d and the guide surface 7c.

Simultaneously, on the basis of such dual traction modes, the inspection vehicle of the present invention can realize self-rescue capability under any fault conditions (comprising the failure of the inspection vehicle itself, such as: partial suspension failure, partial guidance failure, external power supply failure etc.; or line track faults, such as: long stator cables falling off, fastening bolts of functional parts loosening, deformation of sliding surface and guiding surface, etc.), that is, the track inspection vehicle can rely on the vehicle-mounted external motor support wheel as the driving force, return Maintenance base (or near the station).

Further, a gas-hydraulic conversion brake disc (not shown in the figure) is also installed on the outside of the outer rotor motor support wheel 2a, thereby realizing one of the gas-hydraulic conversion disc brake modes of the present invention, which utilizes the The air-hydraulic conversion brake disc described above uses a hydraulic braking method to force the inspection vehicle to decelerate until it stops.

The other three braking modes of the track inspection car are respectively: the reverse traction of the linear motor of the inspection car realized by the suspension magnet modules 2e and 2g and the long stator coil installed on the track 7 Braking mode, which feeds reverse traction current to the track long stator coil through the ground traction power supply station, forcing the inspection vehicle to decelerate and brake. The eddy current braking mode of the inspection vehicle realized by the eddy current braking magnet module 2d in the vehicle can force the inspection vehicle to press eight levels of currents by feeding the eddy current braking magnet module 2d on the vehicle. Deceleration braking. The outer rotor motor wheel reverse braking mode realized by the outer rotor motor driven support wheel device 2a forces the inspection vehicle to decelerate by passing a controllable reverse rotation current to the outer rotor motor driven support wheel device 2a brake. The above four braking modes can enable the track inspection vehicle to have the function of using different methods to stop flexibly and accurately when it finds a track accident point, and adapt to the safe operation function on the track line.

As shown in Figure 5, the conventional electromagnetic levitation track inspection car of the present invention is provided with six doors in total, wherein four compartment side doors 1d are arranged on both sides of the shortened compartment structure 1, and are connected with the frame of the aluminum alloy extruded profile Combined, the doors on the two fronts 1a can be opened and closed outwards, up and down, which is convenient for operators to enter the operation platform.

The conventional electromagnetic levitation track inspection vehicle of the present invention is provided with two 200kW diesel generator sets 1f on the aluminum alloy extruded profile frame of the carriage floor 6, thereby forming a vehicle-mounted hybrid power grid, without the need for the original car (passenger maglev train) ) current receiver power supply mode. In order to reduce the noise inside the car caused by the diesel generator set 1f, the sound insulation cover 1g is specially arranged to control the noise inside the car within the range allowed by the relevant technical standards.

Due to the installation of the outer rotor motor drive wheel device on the running mechanism 2, the equipment interlayer of the original vehicle (passenger maglev train) is canceled, and the on-board electrical equipment will be arranged in the on-board electrical equipment installation space 1b on both sides of the car body. The on-board electrical equipment is fixed under the carriage floor 6 in the form of suspension, and such an arrangement meets the requirements for the installation of relevant rail transit vehicle equipment.

On both sides of the vehicle floor 6, floor skirts 6c are provided.

Anti-collision devices 6b are arranged at both ends of the compartment floor 6, and a vehicle coupler 6a is installed on the anti-collision devices 6b for use as emergency rescue.

Space for the operating platform 1e is reserved at both ends of the shortened compartment 1, and the compartment floor 6 is an aluminum alloy extruded profile frame structure. Four lifting maintenance platforms 3 including platform main body 3a and platform support 3b are arranged on the operating platform, each occupying four corners of the carriage floor 6, to complete the maintenance function of the maglev track inspection vehicle, and the lifting maintenance platform can undertake two The weight of people (operators) and part of the track maintenance equipment, the lifting height can be lowered to the operating space at the lower part of the track beam.

As a compatibility requirement of the high-speed maglev transportation system, the vehicle-ground communication equipment should keep matching with the system, so the maglev track inspection vehicle of the present invention is equipped with vehicle-ground communication equipment 4 on the operating platform 1e at both ends of the vehicle.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (15)

1. A constant conduction electromagnetic suspension type track inspection car, which comprises a frame car body and a walking structure (2) that is arranged on the bottom of the frame car body, is characterized in that: The frame body includes: Carriage floor (6); The compartment structure (1), which is arranged on the compartment floor (6); The lifting maintenance platform (3) is arranged on the carriage floor (6) and is located at both ends of the carriage structure (1); Vehicle-ground communication equipment (4), which is arranged on the compartment floor (6) and located at both ends of the compartment structure (1); The walking structure (2) includes several suspension frames (2b) connected in sequence, a long stator linear motor traction device, and an outer rotor motor driven support wheel device; wherein, The suspension frame (2b) is connected to the bottom of the base plate (6); The long stator linear motor traction device includes a suspension magnet module installed on the suspension frame (2b); The outer rotor motor-driven support wheel device includes outer rotor motor support wheels (2a) installed on both sides of the suspension frame. 2. The constant conduction electromagnetic levitation track inspection vehicle according to claim 1, characterized in that, the said compartment floor (6) adopts an aluminum alloy extruded profile frame structure. 3. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, characterized in that, the compartment structure (1) adopts a combined frame structure of aluminum alloy extruded profiles and sandwich aluminum alloy structural plates. 4. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, wherein the frame car body also includes: The diesel generator set (1f) is symmetrically arranged on the compartment floor (6) and is located within the compartment structure (1), thereby forming a vehicle-mounted hybrid power grid, which does not require the current receiver power supply mode of the original vehicle. 5. The constant conduction electromagnetic levitation track inspection car as claimed in claim 4, characterized in that, the outside of the diesel generator set (1f) is provided with a soundproof cover (1g), and the soundproof cover (1g) is fixed and sealed in the On the compartment floor (6), the interior noise caused by the diesel generator set (1f) is reduced, so that the interior noise is controlled within the range allowed by relevant technical standards. 6. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, wherein said carriage floor 6 comprises: The anti-collision devices (6b) arranged at both ends of the carriage floor (6) are used for traction of the inspection vehicle and removal of foreign matter on the track; The coupler (6a) arranged on the anti-collision device (6b) is used as traction and rescue of other vehicles; The apron (6c) on the carriage floor is arranged on both sides of the carriage floor (6), and is used as an inspection cover for installing equipment on the lower part of the carriage floor, and also has the ability to withstand the aerodynamics and aerodynamics generated when other trains meet at a speed of 500km/h. The ability of the vehicle to operate under crosswind loads. 7. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, wherein said carriage structure (1) comprises: a car body, which is shorter than the structure of the original car; The headstock (1a) is fixed on both ends of the car body, and the headstock (1a) has a front door, which is convenient for operators to enter; a compartment side door (1d), which is arranged on two sides of the vehicle body; The roof air conditioner (1c), which is arranged on the top of the car body, overcomes the trouble of arranging two air-conditioning units in the equipment interlayer of the original car. The strength and stiffness requirements for the arrangement on the roof; The on-vehicle electrical equipment installation space (1b), which is arranged on both sides of the interior of the car body, most of the on-vehicle electrical equipment are installed in the on-vehicle electrical equipment installation space (1b), thereby canceling the equipment interlayer of the original car and leaving The installation space of the drive wheel of the outer rotor motor is increased; An operating platform (1e), which is arranged at both ends of the vehicle body and located in front of the vehicle head (1a), on which the lifting maintenance platform (3) and vehicle-ground communication equipment (4) are arranged . 8. The constant conduction electromagnetic levitation track inspection vehicle according to claim 1, characterized in that, the lifting maintenance platform (3) comprises a platform main body (3a) and a platform support (3b). 9. The constant conduction electromagnetic levitation track inspection car as claimed in claim 7, characterized in that, the frame car body also includes the lower front skirt (5), which is arranged on both sides of the car floor (6). side, located at the front (1a). 10. The constant conduction electromagnetic levitation track inspection car as claimed in claim 9, characterized in that, the frame car body also includes a monitoring device, which is arranged on the inner side of the lower skirt plate (5) of the front of the car, and is connected to the front of the car The shape of the lower skirt (5) matches, and the monitoring device includes a high-speed video monitoring system and a high-speed non-contact track detection device. 11. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, characterized in that, the levitation magnet module comprises several standard levitation magnet modules (2e) installed on the levitation frame (2b) and several The elongated suspension magnet modules (2g) at both ends of the walking structure (2). 12. The constant conduction electromagnetic levitation track inspection vehicle according to claim 1, characterized in that, the long stator linear motor traction device further includes several guide magnet modules (2f) installed on the suspension frame (2b). 13. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, characterized in that, the long stator linear motor traction device also includes several eddy current brake magnet modules (2d) installed on the suspension frame (2b) ). 14. The constant conduction electromagnetic levitation track inspection vehicle according to claim 1, characterized in that, the outer rotor motor support wheel (2a) is guided by the guide magnet module (2f), and is guided by the suspension frame (2b) The steering performs a steering movement adapted to the curves of the line. 15. The constant conduction electromagnetic levitation track inspection car as claimed in claim 1, characterized in that, said outer rotor motor drive support wheel device also includes a gas-liquid conversion mechanism installed on the outside of the outer rotor motor support wheel (2a). Moving disk device.

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