Intelligent railway overhead line maintenance train

Abstract

Provided is an intelligent railway overhead contact network maintenance vehicle train, which adopts a power distribution mode for vehicle traction and one or more of the multiple working vehicles is a power vehicle, and the intelligent railway overhead contact network maintenance vehicle train adopts a braking mode of a combination of resistance braking and air braking, and the overhead contact network suspension state monitoring system and the braking resistor in the resistance braking are arranged on the top of the traction vehicle I and the traction vehicle II, and the working platform on the top of the multiple working vehicles is provided with an intelligent operating device for overhead contact network defects. The present invention improves the traction capacity and maximum operating speed of a long ramp by adopting a power distribution mode for vehicle traction, and realizes intelligent detection and intelligent maintenance of overhead contact network defects by arranging a overhead contact network suspension state monitoring system on the top of the traction vehicle and an intelligent operating device on the working platform, thereby reducing the labor intensity of the centralized power supply repair operation and improving the scope and efficiency of the centralized power supply repair operation.

Description

Technical Field

[0001] The invention belongs to the technical field of railway engineering vehicles, and in particular relates to an intelligent railway overhead line maintenance operation vehicle train. Background Art

[0002] At present, the centralized maintenance of domestic overhead contact network adopts multiple single-internal combustion-driven single-operating platform vehicles to form a group of vehicles for operation or adopts JJC type overhead contact network maintenance vehicle (such as the patent document with application number: 201410127476.1, invention name: Electrified Railway Overhead Contact Network Maintenance Train) to implement the operation. The former operation mode has the defects of equipped with twice the number of drivers, low operation efficiency, complex management, poor living conditions, large engine pollution, and weak braking force on long downhill slopes; the latter is composed of 2 internal combustion hydraulic transmission traction vehicles and 10 working vehicles, which improves the operation efficiency and the living conditions of employees compared with the former, but there are still defects such as engine The emissions and noise pollution are large, the braking force on long and steep downhill slopes is weak, the operating function is single, the platform carries construction personnel for operation, and it takes too long to reach the operation site. The above two operation modes require a large number of construction personnel to manually identify and repair defects in the contact network area, which is very labor-intensive. In addition, although the above two operation equipment and operation modes have been maturely used in low-altitude areas, they can no longer meet the application needs in special sections, such as the Sichuan-Tibet line with a large proportion of tunnels, long steep slopes, high altitudes, and low ambient temperatures. Therefore, the above two modes cannot be used in harsh environments. It is necessary to make improvements to the above problems. Summary of the invention

[0003] The technical problem solved by the present invention is: to provide an intelligent railway contact network maintenance operation train, which improves the traction capacity and maximum operating speed of the contact network comprehensive maintenance operation train on a long slope by adopting a power distribution mode for whole-vehicle traction, and realizes intelligent detection and intelligent maintenance of contact network diseases by arranging intelligent detection equipment and intelligent operation devices on the operation platform, thereby reducing the labor intensity of centralized power supply maintenance operations and improving the scope and efficiency of centralized power supply maintenance operations.

[0004] The technical solution adopted by the present invention is as follows: an intelligent railway contact network maintenance work train, which is composed of a tractor, a tractor II and a plurality of work vehicles arranged between the tractor I and the tractor II, wherein the tractor I, the tractor II and the plurality of work vehicles are connected by a coupler and a awning windshield, the intelligent railway contact network maintenance work train adopts a power distribution mode to tow the entire vehicle and at least one of the plurality of work vehicles is a power vehicle, the intelligent railway contact network maintenance work train adopts a braking mode combining resistance braking and air braking and a contact network suspension state monitoring system and a braking resistor in resistance braking are arranged on the top of the tractor I and the tractor II, and a plurality of the work vehicles are provided with work platforms on their roofs and an intelligent contact network disease operation device with a lifting and walking function is provided on the work platform.

[0005] Among them, the multiple work vehicles include material vehicles, tool vehicles, cooking vehicles, dining vehicles, camping vehicles, conference vehicles and office command vehicles. The frame of the material vehicle is provided with a workbench and a material rack, the frame of the tool vehicle is provided with a tool cabinet and a tool rack, the frame of the cooking vehicle is provided with a kitchen area, a storage area and a meal picking area, the frame of the dining vehicle is provided with a dining table and seats, the frame of the camping vehicle is provided with a sleeping compartment and a toilet, the frame of the conference vehicle is provided with a conference room, and the frame of the office command vehicle is provided with command processing equipment and display equipment.

[0006] Furthermore, the material vehicle and the office command vehicle are power vehicles, and the bottom of the frame of tractor I and tractor II are provided with a main traction generator set electrically connected to the material vehicle and the office command vehicle, and the main traction generator set includes a main traction diesel engine, a generator and a converter, and the locomotive axle type of tractor I and tractor II are The traction mode is that the frame bottom of the material vehicle and the office command vehicle is provided with two two-axle bogies and the locomotive axle type of the material vehicle and the office command vehicle is adopted. In traction mode, the tool car, cooking car, dining car, camping car and conference car are provided with a non-powered bogie at the bottom of the frame and the locomotive axle type of the tool car, cooking car, dining car, camping car and conference car is a 2-2 running mode, and the tractor I, tractor II and multiple work vehicles form a whole vehicle traction in a power-distributed mode.

[0007] Furthermore, the contact network disease intelligent operation device includes a contact network disease intelligent mechanical arm, and the contact network disease intelligent mechanical arm is two sets of three-degree-of-freedom two-section mechanical arms, and the three-degree-of-freedom two-section mechanical arms include a base, a first-section mechanical arm, a second-section mechanical arm, a maintenance seat (12-4), a walking motor and a motor 1. The base is fixedly connected to a mechanical arm mounting seat, and the lower end of the first-section mechanical arm is fixedly connected to a hinged part arranged at the upper end of the mechanical arm mounting seat, and the motor 1 arranged on the mechanical arm mounting seat drives the first-section mechanical arm to rotate around the hinged part through a transmission part connected to the hinged part. The lower end of the second-section mechanical arm is fixedly connected to a hinged part arranged at the upper end of the first-section mechanical arm, and the motor 1 arranged on the first-section mechanical arm drives the second-section mechanical arm to rotate around the hinged part through a transmission part connected to the hinged part. The bottom of the maintenance seat is connected to a hinged part arranged at The hinge at the upper end of the second section of the mechanical arm is fixedly connected, and the motor 1 arranged on the second section of the mechanical arm is connected to the hinge through a transmission part. An angle sensor that can collect the angle signal between the maintenance seat and the horizontal plane is provided at the rotating position at the bottom of the maintenance seat, and the angle sensor and the motor 1 are respectively connected to the control system through a signal line and a control line, and the control system controls the rotation of the motor 1 according to the angle signal of the maintenance seat fed back by the angle sensor, so that the maintenance seat always maintains a horizontal position; T-shaped rails and racks are laid on both sides of the table top of the working platform, and guide wheels are provided on both sides of the bottom of the base above the working platform, and the guide wheels are adapted to the corresponding side T-shaped rails on the working platform, and the walking motor is fixedly connected to the inside of the base and the gear installed on the output shaft of the walking motor is meshed with the rack and driven by the walking motor to realize the longitudinal movement of the intelligent mechanical arm for contact network defects along the rack.

[0008] Furthermore, there are a plurality of camping vehicles.

[0009] Furthermore, a main traction generator set is provided at the bottom of the frame of the tractor I and tractor II, and two sets of traction motors and axle gear boxes are provided on the two bogies at the front and rear ends of the tractor I and tractor II, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes; the material vehicle and the office command vehicle are power units, and two sets of traction motors and axle gear boxes are provided on the bogies at the front and rear ends of the material vehicle and the office command vehicle, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes, the traction motors on the tractors I and tractor II, the material vehicle and the office command vehicle are connected to the main generator set, and the main generator set outputs AC power to drive the sixteen wheel pairs on the tractors I and tractor II, the material vehicle and the office command vehicle to realize the traction operation of the whole vehicle.

[0010] Furthermore, after the traction motors on the traction vehicle I, traction vehicle II, material vehicle and office command vehicle are connected to the braking resistors, the braking resistors consume the electric energy fed back by the traction motors when the train decelerates to achieve dynamic braking when the whole vehicle is running at high speed. The unit brake in the air brake is driven by compressed air and pushes the brake shoes located at the wheels to rub against the wheel tread to achieve parking braking of the train.

[0011] Furthermore, the roofs of the multiple work vehicles are all provided with work platforms which are interconnected and have an effective working length of 175m.

[0012] The advantages of the present invention compared with the prior art are:

[0013] 1. The power transmission system of this technical solution adopts a dual-unit AC-DC-AC electric transmission mode for traction, converts the mechanical energy output by the diesel engine into electrical energy, and realizes rectification and inversion through the converter, outputs three-phase adjustable AC power, and drives the wheel pair to rotate through the AC traction motor to realize the movement of the whole vehicle;

[0014] 2. This technical solution adopts the power distribution mode to pull the whole vehicle. Tractor I and Tractor II supply power to the train. After driving the traction wheel pairs of Tractor I, Tractor II, material vehicle and office command vehicle, the vehicle is pulled to operate tool vehicles, cooking vehicles, dining vehicles, multiple camping vehicles and conference vehicles. The maximum operating speed can reach 160km / h, which effectively shortens the time to reach the work site, meets the use requirements of special sections such as Sichuan-Tibet, where the tunnel accounts for a large proportion, the steep slope line is long, the altitude is high, and the ambient temperature is low, and saves skylight operation time;

[0015] 3. In this technical solution, a contact network suspension status detection and monitoring system is installed on the top of tractor Ⅰ and tractor Ⅱ, and an intelligent contact network disease operation device with lifting and walking functions is installed on the working platform on the roof of multiple working vehicles, so as to realize the intelligent detection and intelligent maintenance of contact network diseases, and reduce the labor intensity of centralized power supply maintenance operations. The working platform on each working vehicle is 17.5m long, so that the effective operating length can reach 175m after the working platforms are connected to each other;

[0016] 4. The vehicle traction form of the power distribution mode of this technical solution improves the traction performance of the working vehicle. The maximum operating speed of the train on a 33‰ slope is ≥50km / h, and the maximum operating speed on a 30‰ slope is ≥65km / h, which meets the large traction requirements of long and long uphill slopes. The power level of the train is ≥4500kW, which meets the operation and operation requirements of the train under any combination of working conditions;

[0017] 5. The train operation and life power supply of this technical solution adopts the rectification and inversion power supply of the main traction generator set on traction vehicle Ⅰ or traction vehicle Ⅱ, and there is no need to set up auxiliary generator sets and pantograph-net power supply devices;

[0018] 6. This technical solution adopts a contact network suspension status monitoring system and an intelligent contact network disease operation device to save manpower and material resources and greatly improve the efficiency of disease identification and operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the vehicle of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the intelligent operation device for contact network defects of the present invention;

[0021] Figure 3 This is a simplified structural diagram of the intelligent mechanical arm for contact network damage of the present invention. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3 An embodiment of the present invention is described to clearly and completely describe the technical solution. Obviously, the described embodiment is only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0024] The present embodiment is a 4-motor (tractor Ⅰ1, tractor Ⅱ9, material vehicle 2 and office command vehicle 8 are all power vehicles) 8-trailer type 12-carriage train formed by two tractors (i.e., tractor Ⅰ1 and tractor Ⅱ9) and 10 working vehicles.

[0025] Intelligent railway overhead line maintenance train, such as Figure 1-2As shown, it is composed of a tractor Ⅰ1, a tractor Ⅱ9 and a plurality of work vehicles arranged between the tractor Ⅰ1 and the tractor Ⅱ9, the tractor Ⅰ1, the tractor Ⅱ9 and the plurality of work vehicles are connected by a coupler and a canopy windshield 10, the intelligent railway contact network maintenance work vehicle train adopts a power distribution mode for vehicle traction and more than one work vehicle among the plurality of work vehicles is a power vehicle, the intelligent railway contact network maintenance work vehicle train adopts a braking mode of a combination of resistance braking and air braking, and the contact network suspension state monitoring system and the braking resistor in the resistance braking are arranged on the top of the tractor Ⅰ1 and the tractor Ⅱ9, the roofs of the plurality of work vehicles are provided with an working platform 11 and the working platform 11 is provided with an intelligent contact network disease working device with a lifting and walking function; specifically, the plurality of work vehicles include a material vehicle 2, a tool vehicle 3, a cooking vehicle 4, and a dining vehicle. The material vehicle 2 and the office command vehicle 8 are provided with a workbench and a material rack on the frame of the tool vehicle 3, a tool cabinet and a tool rack on the frame of the tool vehicle 3, a kitchen area, a storage area and a dining area on the frame of the cooking vehicle 4, a dining table and seats on the frame of the dining vehicle 5, a berth compartment and a toilet on the frame of the camping vehicle 6, a conference vehicle 7 on the frame of the conference vehicle 7, and a command processing device and a display device on the frame of the office command vehicle 8; specifically, the material vehicle 2 and the office command vehicle 8 are power vehicles, and the bottom of the frames of the tractor Ⅰ1 and the tractor Ⅱ9 are provided with a main traction generator set electrically connected to the material vehicle 2 and the office command vehicle 8, the main traction generator set includes a main traction diesel engine, a generator and a converter, and the locomotive axle types of the tractor Ⅰ1 and the tractor Ⅱ9 are The traction mode, the material vehicle 2 and the office command vehicle 8 are provided with two two-axle bogies at the bottom of the frame and the locomotive axle type of the material vehicle 2 and the office command vehicle 8 are both In the traction mode, the tool car 3, the cooking car 4, the dining car 5, the camping car 6 and the conference car 7 are provided with a non-powered bogie at the bottom of the frame, and the locomotive axle type of the tool car 3, the cooking car 4, the dining car 5, the camping car 6 and the conference car 7 is a 2-2 running mode, and the tractor Ⅰ1, the tractor Ⅱ9 and the multiple working vehicles form a whole vehicle traction in a power distribution mode; specifically, the contact network disease intelligent operation device includes a contact network disease intelligent mechanical arm 12, such as Figure 3As shown, the contact network disease intelligent operation device includes a contact network disease intelligent mechanical arm 12, and the contact network disease intelligent mechanical arm 12 is two sets of three-degree-of-freedom two-section mechanical arms, and the three-degree-of-freedom two-section mechanical arms include a base 12-1, a first section mechanical arm 12-2, a second section mechanical arm 12-3, a maintenance seat 12-4, a walking motor 12-5 and a motor 12-6. The base 12-1 is fixedly connected to a mechanical arm mounting seat 12-10, and the lower end of the first section mechanical arm 12-2 is fixedly connected to a hinged part arranged at the upper end of the mechanical arm mounting seat 12-10, and the first section mechanical arm 12-6 is driven by a motor 12-6 arranged on the mechanical arm mounting seat 12-10 through a transmission member connected to the hinged part. The first section of the robot arm 12-2 rotates around the hinge, the lower end of the second section of the robot arm 12-3 is fixedly connected to the hinge arranged at the upper end of the first section of the robot arm 12-2, and the motor 12-6 arranged on the first section of the robot arm 12-2 drives the second section of the robot arm 12-3 to rotate around the hinge through a transmission member connected to the hinge, the bottom of the maintenance seat 12-4 is fixedly connected to the hinge arranged at the upper end of the second section of the robot arm 12-3, and the motor 12-6 arranged on the second section of the robot arm 12-3 is connected to the hinge through a transmission member, and an angle sensor that can collect the angle signal between the maintenance seat 12-4 and the horizontal plane is provided at the rotation position of the bottom of the maintenance seat 12-4, and the angle sensor The device and the motor 12-6 are connected to the control system through signal lines and control lines respectively, and the control system controls the motor 12-6 to rotate according to the angle signal of the maintenance seat 12-4 fed back by the angle sensor to ensure that the maintenance seat 12-4 always maintains a horizontal position; T-shaped rails and racks 12-7 are laid on both sides of the table top of the working platform 11, and guide wheels 12-8 are provided on both sides of the bottom of the base 12-1 located above the working platform 11, and the guide wheels 12-8 are adapted to the corresponding side T-shaped rails on the working platform 11, and the walking motor 12-5 is fixedly connected to the inside of the base 12-1 and the gear 12-9 installed on the output shaft of the walking motor 12-5 is meshed with the rack 12-7 and is driven by the walking motor After the machine 12-5 is driven, the intelligent mechanical arm 12 for contact network damage is moved longitudinally along the rack 12-7. Among them, the maintenance left shift 12-4 in the two sets of three-degree-of-freedom two-section mechanical arms are arranged opposite to each other, and the battery or AC power is used to provide the power source for the walking motor 12-5 and the motor 12-6. The maximum translation walking speed of the intelligent mechanical arm 12 for contact network damage is 2km / h, and the motor 12-6 is used to drive the mechanical arm joint to move, and the vertical direction is ±50°rotation, and the maximum lifting height is ≥2000mm. An angle sensor is provided at the bottom rotation position of the maintenance seat 12-4 to ensure that the maintenance seat 12-4 always remains in a horizontal state; specifically, the camping car 6 is provided with a plurality of vehicles;Specifically, the bottom of the frame of the tractor Ⅰ1 and the tractor Ⅱ9 are both provided with a main traction generator set, and the two bogies at the front and rear ends of the tractor Ⅰ1 and the tractor Ⅱ9 are both provided with two sets of traction motors and axle gear boxes, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes; the material vehicle 2 and the office command vehicle 8 are power units, and the bogies at the front and rear ends of the material vehicle 2 and the office command vehicle 8 are both provided with two sets of traction motors and axle gear boxes, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes, and the traction motors on the tractor Ⅰ1 and the tractor Ⅱ9, the material vehicle 2 and the office command vehicle 8 are connected to the main generator set, The main generator set outputs AC power to drive the sixteen wheel pairs on tractor Ⅰ1, tractor Ⅱ9, material car 2 and office command car 8 to realize the traction operation of the whole vehicle; specifically, the traction motors on the tractor Ⅰ1, tractor Ⅱ9, material car 2 and office command car 8 are connected to the brake resistor, and the brake resistor consumes the electric energy fed back by the traction motor when the train slows down to realize the dynamic braking of the whole vehicle when running at high speed. The unit brake in the air brake is driven by compressed air and pushes the brake shoe at the wheel to rub the wheel tread to realize the parking brake of the train; specifically, the roofs of the multiple working vehicles are all equipped with working platforms 11, and the effective working length reaches 175m after being connected to each other. ;

[0026] This technical solution integrates traction, through-operation, power generation, material and tool storage, material processing, accommodation (food storage, processing, rest, bathing, laundry, drying clothes, washing, drinking water, toilet, etc.), conference (conference table and multimedia), office (file storage, office computer), etc. The train includes traction vehicle Ⅰ1, material vehicle 2, tool vehicle 3, cooking vehicle 4, dining vehicle 5, and multiple camping vehicles 6 (such as Figure 1 The figure shows four camping cars 6), a conference car 7, an office command car 8 and a tractor II 9. The tractor I1, the material car 2, the tool car 3, the cooking car 4, the dining car 5, the camping cars 6, the conference car 7, the office command car 8 and the tractor II 9 are connected by a 15X type coupler and a canopy windshield 10 to form an intelligent railway overhead line maintenance operation train, which meets the train operation, operation and life needs.

[0027] The power transmission system of this technical solution adopts a dual-unit AC-DC-AC electric transmission mode for traction. The power system adopts two sets of power units to convert the mechanical energy output by the diesel engine into electrical energy, and realizes rectification and inversion through the converter, outputs three-phase adjustable AC power, and drives the wheel pair to rotate through the AC traction motor to realize the movement of the whole vehicle; the power distribution mode is adopted for the whole vehicle traction, and the traction vehicle Ⅰ1 and the traction vehicle Ⅱ9 supply power to the train, driving the traction wheel pairs of the traction vehicle Ⅰ1, the traction vehicle Ⅱ9, the material vehicle 2 and the office command vehicle 8 to move. After the transfer, the traction tool vehicle 3, the cooking vehicle 4, the dining vehicle 5, the camping vehicles 6 and the conference vehicle 7 are in operation, with a maximum operating speed of 160 km / h, which effectively shortens the time to reach the work site, meets the use requirements of the Sichuan-Tibet line with a large proportion of tunnels, long lines with large slopes, high altitudes and low ambient temperatures, and saves skylight operation time; a contact network suspension status monitoring system is set on the top of the tractor Ⅰ1 or tractor Ⅱ9, and a contact network disease intelligent operation device is set on the working platform 11 on the roof of multiple working vehicles to realize the intelligent detection of contact network diseases. Energy-saving detection and intelligent maintenance reduce the labor intensity of centralized power supply repair operations. The working platform on each work vehicle is 17.5m long, so that the effective working length can reach 175m after the working platforms 11 are connected to each other; the vehicle traction form of the power distribution mode improves the traction performance of the work vehicle. The maximum operating speed of the train on a 33‰ slope is ≥50km / h, and the maximum operating speed on a 30‰ slope is ≥65km / h, which meets the large traction requirements of long and long uphill slopes. The power level of the train is ≥4500kW, which meets the requirements of any working condition of the train. The train adopts high-power resistor braking to achieve uniform descent on long and steep slopes with a slope of ≥-3‰ and a mileage of ≥10km; the train adopts a contact network suspension status monitoring system to save manpower and material resources and greatly improve the efficiency of disease identification; the train adopts an intelligent contact network disease operation device to save manpower and material resources and greatly improve the efficiency of operation and maintenance.

[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An intelligent railway overhead line maintenance vehicle train, comprising a tractor I (1), a tractor II (9), and a plurality of working vehicles arranged between the tractor I (1) and the tractor II (9), wherein the tractor I (1), the tractor II (9), and the plurality of working vehicles are connected via a coupler and a canopy windshield (10), and characterized in that: The intelligent railway overhead line maintenance work train adopts a power distribution mode for whole-vehicle traction and at least one of the multiple work vehicles is a power vehicle. The intelligent railway overhead line maintenance work train adopts a braking mode of a combination of resistance braking and air braking, and the overhead line suspension state monitoring system and the braking resistor in the resistance braking are arranged on the top of the traction vehicle I (1) and the traction vehicle II (9). The roofs of the multiple work vehicles are all provided with an operation platform (11), and the operation platform (11) is provided with an intelligent overhead line disease operation device with a lifting and walking function; The contact network defect intelligent operation device comprises a contact network defect intelligent mechanical arm (12), the contact network defect intelligent mechanical arm (12) is two sets of three-degree-of-freedom two-section mechanical arms, and the three-degree-of-freedom two-section mechanical arms comprise a base (12-1), a first section mechanical arm (12-2), a second section mechanical arm (12-3), a maintenance seat (12-4), a walking motor (12-5) and a motor 1 (12-6), the base (12-1) is fixedly connected to a mechanical arm mounting seat (12-10), the lower end of the first section mechanical arm (12-2) is connected to the upper end of the mechanical arm mounting seat (12-10), and the second section mechanical arm (12-3) is connected to the second section mechanical arm (12-4). The first section of the mechanical arm (12-2) is fixedly connected to the hinged part, and a motor 1 (12-6) provided on the mechanical arm mounting seat (12-10) drives the first section of the mechanical arm (12-2) to rotate around the hinged part through a transmission member connected to the hinged part. The lower end of the second section of the mechanical arm (12-3) is fixedly connected to the hinged part provided at the upper end of the first section of the mechanical arm (12-2), and a motor 1 (12-6) provided on the first section of the mechanical arm (12-2) drives the second section of the mechanical arm (12-3) to rotate around the hinged part through a transmission member connected to the hinged part. The bottom of the maintenance seat (12-4) is connected to the second section of the mechanical arm (12-3). ) is fixedly connected to the hinged part at the upper end, and the motor 1 (12-6) provided on the second section of the mechanical arm (12-3) is connected to the hinged part through a transmission part, and an angle sensor that can collect the angle signal between the maintenance seat (12-4) and the horizontal plane is provided at the rotation position of the bottom of the maintenance seat (12-4), and the angle sensor and the motor 1 (12-6) are respectively connected to the control system through a signal line and a control line, and the control system controls the motor 1 (12-6) to rotate according to the angle signal of the maintenance seat (12-4) fed back by the angle sensor, so that the maintenance seat (12-4) always maintains a horizontal position; the operation T-shaped rails and racks (12-7) are laid on both sides of the platform (11), and guide wheels (12-8) are provided on both sides of the bottom of the base (12-1) located above the working platform (11), and the guide wheels (12-8) are adapted to the T-shaped rails on the corresponding sides of the working platform (11). The travel motor (12-5) is fixedly connected to the inside of the base (12-1), and the gear (12-9) installed on the output shaft of the travel motor (12-5) is meshed with the rack (12-7) and driven by the travel motor (12-5) to realize the longitudinal movement of the contact network disease intelligent mechanical arm (12) along the rack (12-7).

2. The intelligent railway overhead line maintenance train according to claim 1 is characterized in that: The plurality of work vehicles include a material vehicle (2), a tool vehicle (3), a cooking vehicle (4), a dining vehicle (5), a camping vehicle (6), a conference vehicle (7) and an office command vehicle (8). The frame of the material vehicle (2) is provided with a workbench and a material rack, the frame of the tool vehicle (3) is provided with a tool cabinet and a tool rack, the frame of the cooking vehicle (4) is provided with a kitchen area, a storage area and a dining area, the frame of the dining vehicle (5) is provided with a dining table and seats, the frame of the camping vehicle (6) is provided with a sleeping compartment and a toilet, the frame of the conference vehicle (7) is provided with a conference room, and the frame of the office command vehicle (8) is provided with a command processing device and a display device.

3. The intelligent railway overhead line maintenance train according to claim 2 is characterized in that: The material vehicle (2) and the office command vehicle (8) are power vehicles, and the bottom of the frame of the tractor I (1) and the tractor II (9) are both provided with a main traction generator set electrically connected to the material vehicle (2) and the office command vehicle (8), and the main traction generator set includes a main traction diesel engine, a generator and a converter. The locomotive axle type of the tractor I (1) and the tractor II (9) are The traction mode is that two two-axle bogies are provided at the bottom of the frame of the material vehicle (2) and the office command vehicle (8), and the locomotive axle type of the material vehicle (2) and the office command vehicle (8) are both In the traction mode, the tool vehicle (3), the cooking vehicle (4), the dining vehicle (5), the camping vehicle (6) and the conference vehicle (7) are provided with a non-powered bogie at the bottom of the vehicle frame and the locomotive axle type of the tool vehicle (3), the cooking vehicle (4), the dining vehicle (5), the camping vehicle (6) and the conference vehicle (7) is a 2-2 running mode, and the tractor I (1), the tractor II (9) and the plurality of working vehicles form a whole vehicle traction in a power distribution mode.

4. The intelligent railway overhead line maintenance train according to claim 2 is characterized in that: There are a plurality of camping vehicles (6).

5. The intelligent railway overhead line maintenance train according to claim 2 or 3, characterized in that: The bottom of the frame of the tractor I (1) and the tractor II (9) is provided with a main traction generator set, and two bogies at the front and rear ends of the tractor I (1) and the tractor II (9) are provided with two sets of traction motors and axle gear boxes, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes; the material vehicle (2) and the office command vehicle (8) are power units, and the bogies at the front and rear ends of the material vehicle (2) and the office command vehicle (8) are provided with two sets of traction motors and axle gear boxes, and the two axles on the bogies are respectively connected to the corresponding axle gear boxes, and the traction motors on the tractor I (1) and the tractor II (9), the material vehicle (2) and the office command vehicle (8) are connected to the main generator set, and the main generator set outputs AC power to drive the sixteen wheel pairs on the tractor I (1) and the tractor II (9), the material vehicle (2) and the office command vehicle (8) to realize the traction operation of the whole vehicle.

6. The intelligent railway overhead line maintenance train according to claim 5 is characterized by: The traction motors on the tractor I (1), tractor II (9), material vehicle (2) and office command vehicle (8) are connected to brake resistors, and the brake resistors consume the electric energy fed back by the traction motors when the train slows down to achieve dynamic braking when the whole vehicle is running at high speed. The unit brake in the air brake is driven by compressed air and pushes the brake shoes arranged at the wheels to rub against the wheel tread to achieve parking braking of the train.

7. The intelligent railway overhead line maintenance train according to claim 1 is characterized by: The roofs of the multiple working vehicles are all provided with working platforms (11), and the working platforms (11) are interconnected and have an operating length of 175 m.

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