CN107458396A - Railway internal combustion electric transmission rescue operation vehicle - Google Patents

Railway internal combustion electric transmission rescue operation vehicle Download PDF

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Publication number
CN107458396A
CN107458396A CN201710830042.1A CN201710830042A CN107458396A CN 107458396 A CN107458396 A CN 107458396A CN 201710830042 A CN201710830042 A CN 201710830042A CN 107458396 A CN107458396 A CN 107458396A
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China
Prior art keywords
vehicle frame
vehicle
power supply
car body
cab
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CN201710830042.1A
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Inventor
任涛龙
赵国栋
陈强
苟强强
王新虎
苗武
王满成
王西强
李博
赵力
刘旭东
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Baoji CRRC Times Engineering Machinery Co Ltd
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Baoji CSR Times Engineering Machinery Co Ltd
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Priority to CN201710830042.1A priority Critical patent/CN107458396A/en
Publication of CN107458396A publication Critical patent/CN107458396A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00Power supply lines for contact with collector on vehicle
    • B60M1/12Trolley lines; Accessories therefor
    • B60M1/28Manufacturing or repairing trolley lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61GCOUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G1/00Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A kind of railway internal combustion electric transmission rescue operation vehicle is provided, including vehicle frame, frame downward both ends are equipped with bogie, vehicle frame upper one end is provided with car body, the vehicle frame top other end is provided with small drivers' cab, wire thread-moving device is provided with the top of small drivers' cab, three platform operations devices are provided among vehicle frame top, rear portion is provided with generator in car body, diesel engine and generating set, rectifier is provided among frame downward, inverter and fuel tank, vehicle frame both ends are mounted on power supply follower, Diesel Driven generator operation, generator is electrically connected by rectifier with inverter, inverter electrically connects with power supply follower.The present invention voluntarily can quickly support scene, do not influenceed by contact net power supply, EMUs can be drawn and realize emergency management and rescue, meet contact net regular maintenance, EMUs are made to recover direct current supply, Alternating Current Power Supply demand using self power, it is to integrate contact net regular maintenance, EMUs traction, the rescue operation vehicle of power supply rescue function, dual-use, utilization rate height.

Description

铁路用内燃电传动救援作业车Rescue vehicle with internal combustion electric drive for railway

技术领域technical field

本发明属铁路车辆技术领域,具体涉及一种铁路用内燃电传动救援作业车。The invention belongs to the technical field of railway vehicles, and in particular relates to a railway internal combustion electric drive rescue operation vehicle.

背景技术Background technique

铁路运行过程中,当接触网发生故障或者动车组自身出现故障时,都将导致运行的动车组列车无法正常行车,需要应急救援。而现有应急救援车辆多采用机车或者内燃动车组进行,采用机车或者内燃动车组时,存在以下缺点:(1)内燃动车组和专用救援机车利用率不高且不能完全保持在运用状态;(2)不能配属作业工区,临时救援车辆调转难度大、等待时间长;(3)动车组救援时,救援成本较高;(4)内燃机车救援时,临时救援车辆无足够容量的应急电源,无法实现救援期间车内空调、饮水机、卫生间等设施设备的用电需求。因此有必要提出改进。During the operation of the railway, when the catenary fails or the EMU itself fails, the running EMU train will not be able to run normally, and emergency rescue is required. However, existing emergency rescue vehicles mostly use locomotives or internal combustion multiple units. When using locomotives or internal combustion multiple units, there are the following disadvantages: (1) the utilization rate of internal combustion multiple units and special rescue locomotives is not high and cannot be kept in use; 2) It cannot be assigned to the work area, and the temporary rescue vehicles are difficult to transfer and the waiting time is long; (3) When the EMU is rescued, the rescue cost is high; (4) When the diesel locomotive is rescued, the temporary rescue vehicles do not have enough emergency power supply capacity Realize the electricity demand for air conditioners, water dispensers, toilets and other facilities and equipment in the car during the rescue period. Therefore it is necessary to propose improvements.

发明内容Contents of the invention

本发明解决的技术问题:提供一种铁路用内燃电传动救援作业车,本发明采用内燃电传动,能自行快速抵现场,不受接触网供电影响,可牵引动车组列车实现应急牵引救援,可满足接触网日常维护需要,可利用自身牵引动力系统快速实现动车组恢复直流供电、交流供电的需求,是集接触网日常维护作业、动车组牵引、供电的救援功能于一体的救援作业车,一机两用,利用率高。The technical problem solved by the present invention is to provide a railway internal combustion electric drive rescue operation vehicle. The present invention adopts internal combustion electric drive and can quickly arrive at the scene by itself without being affected by catenary power supply. It meets the daily maintenance needs of the catenary, and can quickly realize the DC power supply and AC power supply requirements of the EMU by using its own traction power system. Machine dual-purpose, high utilization rate.

本发明采用的技术方案:铁路用内燃电传动救援作业车,包括车架,所述车架下部两端均设有转向架,所述车架上部一端设有车体,所述车架上部另一端设有小司机室,所述小司机室顶部设有导线拨线装置,所述车体和小司机室之间的车架上部设有三平台作业装置,所述车体内后部设有发电机、柴油机和发电机组,两个所述转向架之间的车架下部依次设有整流器、逆变器和油箱,所述车架两端部均安装有电源输出器,所述柴油机进油口与油箱出油口连接,所述柴油机输出端与发电机输入端连接,所述发电机通过整流器与逆变器电连接,所述逆变器与电源输出器电连接,所述逆变器与转向架上的牵引电机电连接。The technical solution adopted in the present invention: the internal combustion electric drive rescue operation vehicle for railways, including a vehicle frame, bogies are provided at both ends of the lower part of the vehicle frame, a vehicle body is provided at one end of the upper part of the vehicle frame, and the upper part of the vehicle frame is separately One end is provided with a small cab, the top of the small cab is equipped with a wire pulling device, the upper part of the frame between the car body and the small cab is provided with a three-platform operating device, and the rear of the car body is provided with a generator , a diesel engine and a generator set, the lower part of the frame between the two bogies is provided with a rectifier, an inverter and a fuel tank in sequence, and power output devices are installed at both ends of the frame, and the oil inlet of the diesel engine is connected to the The oil outlet of the fuel tank is connected, the output end of the diesel engine is connected to the input end of the generator, the generator is electrically connected to the inverter through the rectifier, the inverter is electrically connected to the power output device, and the inverter is connected to the steering The traction motor on the frame is electrically connected.

其中,所述车体顶部设有空调、散热系统、排气系统和进气系统,所述车体内部前端设有前司机台,所述车体内中部设有卧铺、运行监控系统、制动系统和电气系统;所述小司机室内部设有后司机台,所述小司机室外部设有小空调。Wherein, the top of the car body is provided with an air conditioner, a heat dissipation system, an exhaust system and an air intake system; and electrical system; the inside of the small driver's cab is provided with a rear driver's platform, and the outside of the small driver's cab is provided with a small air conditioner.

进一步地,所述发电机组与电源输出器电连接。Further, the generator set is electrically connected to the power exporter.

进一步地,所述车架两端均设有车钩,所述车架两端下部均设有排障器。Further, both ends of the vehicle frame are provided with couplers, and the lower parts of both ends of the vehicle frame are provided with obstacle removers.

本发明与现有技术相比的优点:Advantage of the present invention compared with prior art:

1、本方案中柴油机驱动发电机通过整流器和逆变器实现整车自运行,并能通过车钩牵引动车组列车实现应急牵引救援;同时可经过整流器和逆变器电流转换后通过电源输出器为被救援动车组列车提供应急电源,实现快速为动车组恢复直流供电、交流供电的需求;而且本车辆还设置接触网作业装置,可通过三平台作业装置和导线拨线装置实现接触网日常维护作业;本车辆是集接触网日常维护作业、动车组牵引、供电的救援功能于一体的救援作业车,一机两用,利用率高;1. In this scheme, the diesel engine drives the generator to realize the self-running of the whole vehicle through the rectifier and inverter, and can pull the EMU train through the coupler to realize emergency traction and rescue; at the same time, after the current conversion of the rectifier and inverter, the power output device can be used as Emergency power supply is provided for the rescued EMU trains to quickly restore the DC power supply and AC power supply for the EMUs; moreover, the vehicle is also equipped with catenary operation devices, which can realize the daily maintenance of the catenary through the three-platform operation device and the wire pulling device ;This vehicle is a rescue operation vehicle that integrates the daily maintenance operations of catenary, EMU traction, and power supply rescue functions. It is a dual-purpose machine with high utilization rate;

2、本方案采用内燃电传动,能自行快速抵现场,不受接触网供电影响,正常情况按作业车进行管理和应用,应急时可作为救援车快速响应,同时保证车辆自身拥有良好的运行状态,车辆最高运行速度为120km/h,可配属至高铁接触网作业工区满足高铁动车组应急救援需求。2. This scheme adopts internal combustion electric drive, which can quickly arrive at the site by itself without being affected by catenary power supply. Under normal circumstances, it is managed and applied as a working vehicle. In an emergency, it can be used as a rescue vehicle to respond quickly, and at the same time ensure that the vehicle itself has a good operating state , the maximum operating speed of the vehicle is 120km/h, and it can be assigned to the high-speed rail catenary work area to meet the emergency rescue needs of high-speed rail EMUs.

附图说明Description of drawings

图1为本发明的结构主视图;Fig. 1 is a structural front view of the present invention;

图2为本发明的结构俯视图;Fig. 2 is a structural top view of the present invention;

图3为本发明的结构左视图。Fig. 3 is a left view of the structure of the present invention.

具体实施方式detailed description

下面结合附图1-3描述本发明的实施例。Embodiments of the present invention are described below in conjunction with accompanying drawings 1-3.

铁路用内燃电传动救援作业车,如图1所示,包括车架14,所述车架14两端均设有车钩15,如图3所示,所述车架14两端部均安装有电源输出器25,所述车架14两端下部均设有排障器9,所述车架14下部两端均设有转向架10,两个所述转向架10之间的车架14下部依次设有整流器11、逆变器12和油箱13。The railway internal combustion electric drive rescue work vehicle, as shown in Figure 1, includes a vehicle frame 14, and the two ends of the vehicle frame 14 are provided with couplers 15, as shown in Figure 3, the two ends of the vehicle frame 14 are equipped with Power output device 25, the lower part of the two ends of the vehicle frame 14 are equipped with obstacle remover 9, the two ends of the lower part of the vehicle frame 14 are equipped with bogies 10, the lower part of the vehicle frame 14 between the two bogies 10 A rectifier 11, an inverter 12 and an oil tank 13 are provided in sequence.

所述车架14上部一端设有车体1,如图1和2所示,所述车体1顶部设有空调2、散热系统3、排气系统4和进气系统5,所述车体1内部前端设有前司机台16,所述车体1内中部设有卧铺17、运行监控系统18、制动系统19和电气系统20,所述车体1内后部设有发电机21、柴油机22和发电机组23,所述发电机组23主要为车内生活设施设备空调、电暖器、插座等提供电源,所述发电机组23与电源输出器25电连接,也可对外输出电源。One end of the upper part of the vehicle frame 14 is provided with a car body 1, as shown in Figures 1 and 2, the top of the car body 1 is provided with an air conditioner 2, a cooling system 3, an exhaust system 4 and an air intake system 5, the car body A front driver's station 16 is provided at the front end of the car body 1, a sleeper 17, an operation monitoring system 18, a braking system 19 and an electrical system 20 are provided at the middle part of the car body 1, and a generator 21, Diesel engine 22 and generator set 23, described generator set 23 mainly provides power supply for in-vehicle living facilities equipment air conditioner, electric heater, socket etc., described generator set 23 is electrically connected with power output device 25, also can export power externally.

所述车架14上部另一端设有小司机室8,如图1和2所示,所述小司机室8内部设有后司机台26,所述小司机室8外部设有小空调24,所述小司机室8顶部设有导线拨线装置7,所述车体1和小司机室8之间的车架14上部设有三平台作业装置6。本车辆通过三平台作业装置6和导线拨线装置7可实现接触网日常维护作业。The other end of the top of the vehicle frame 14 is provided with a small driver's cab 8, as shown in Figures 1 and 2, the inside of the small driver's cab 8 is provided with a rear driver's platform 26, and the outside of the small driver's cab 8 is provided with a small air conditioner 24, The top of the small driver's cab 8 is provided with a wire pulling device 7 , and the upper part of the vehicle frame 14 between the vehicle body 1 and the small driver's cab 8 is provided with a three-platform operating device 6 . The vehicle can realize the daily maintenance operation of the catenary through the three-platform operating device 6 and the wire pulling device 7 .

所述柴油机22进油口与油箱13出油口连接,所述柴油机22输出端与发电机21输入端连接驱动其运行,所述发电机21通过整流器11与逆变器12电连接,所述逆变器12与电源输出器25电连接。本车辆通过柴油机22驱动发电机21工作,发电机21输出的三相交流电经整流器11转换成直流电,再经逆变器12将直流电逆变成频率及电压可变的的三相交流电,驱动转向架10上牵引电动机,牵引电动机驱动转向架10车轴齿轮箱转动,车轴齿轮箱驱动轮轴旋转,推动整车自运行,从而通过车钩15牵引动车组列车实现应急牵引救援;同时本车辆柴油机22驱动发电机21工作,发电机21发的电经过整流器11和逆变器12电流转换,再通过电源输出器25为被救援动车组列车提供应急电源,实现快速为动车组恢复直流供电、交流供电的需求。本发明是集接触网日常维护作业、动车组牵引、供电的救援功能于一体的救援作业车,一机两用,利用率高。The oil inlet of the diesel engine 22 is connected to the oil outlet of the fuel tank 13, the output end of the diesel engine 22 is connected to the input end of the generator 21 to drive it to run, and the generator 21 is electrically connected to the inverter 12 through the rectifier 11. The inverter 12 is electrically connected to the power output device 25 . The vehicle uses a diesel engine 22 to drive a generator 21 to work. The three-phase alternating current output by the generator 21 is converted into direct current by the rectifier 11, and then the direct current is converted into a three-phase alternating current with variable frequency and voltage by the inverter 12 to drive the steering. The traction motor on the frame 10, the traction motor drives the axle gearbox of the bogie 10 to rotate, and the axle gearbox drives the wheel shaft to rotate, and promotes the self-running of the whole vehicle, thereby pulling the EMU train through the coupler 15 to realize emergency traction and rescue; at the same time, the diesel engine 22 of the vehicle drives the power generation The machine 21 is working, and the electricity generated by the generator 21 is converted by the rectifier 11 and the inverter 12, and then provides emergency power supply for the rescued EMU train through the power output device 25, so as to realize the demand of quickly restoring DC power supply and AC power supply for the EMU . The invention is a rescue operation vehicle integrating daily maintenance operation of catenary, EMU traction and power supply rescue functions, one machine with dual functions and high utilization rate.

本发明采用内燃电传动,能自行快速抵现场,不受接触网供电影响,正常情况按作业车进行管理和应用,应急时可作为救援车快速响应,同时保证车辆自身拥有良好的运行状态,车辆最高运行速度为120km/h,可配属至高铁接触网作业工区满足高铁动车组应急救援需求The invention adopts internal combustion electric transmission, can quickly arrive at the scene by itself, is not affected by catenary power supply, and is managed and applied as a working vehicle under normal conditions, and can be used as a rescue vehicle to respond quickly in an emergency, while ensuring that the vehicle itself has a good operating state. The maximum operating speed is 120km/h, and it can be assigned to the high-speed rail catenary work area to meet the emergency rescue needs of high-speed rail EMUs

上述实施例,只是本发明的较佳实施例,并非用来限制本发明实施范围,故凡以本发明权利要求所述内容所做的等效变化,均应包括在本发明权利要求范围之内。The foregoing embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so all equivalent changes made with the contents of the claims of the present invention should be included within the scope of the claims of the present invention .

Claims (4)

1. railway internal combustion electric transmission rescue operation vehicle, including vehicle frame (14), vehicle frame (14) the bottom both ends are equipped with steering Frame (10), vehicle frame (14) upper one end are provided with car body (1), and vehicle frame (14) top other end is provided with small drivers' cab (8), It is characterized in that:Be provided with wire thread-moving device (7) at the top of the small drivers' cab (8), the car body (1) and small drivers' cab (8) it Between vehicle frame (14) top be provided with three platform operations devices (6), the interior rear portion of the car body (1) is provided with generator (21), diesel engine (22) and generating set (23), vehicle frame (14) bottom between two bogies (10) is sequentially provided with rectifier (11), inverse Become device (12) and fuel tank (13), vehicle frame (14) both ends are mounted on power supply follower (25), the diesel engine (22) is entered Hydraulic fluid port is connected with fuel tank (13) oil-out, and diesel engine (22) output end is connected with generator (21) input, the generating Machine (21) is electrically connected by rectifier (11) with inverter (12), and the inverter (12) electrically connects with power supply follower (25), The inverter (12) electrically connects with the traction electric machine on bogie (10).
2. railway according to claim 1 internal combustion electric transmission rescue operation vehicle, it is characterised in that:Car body (1) top Portion is provided with air-conditioning (2), cooling system (3), gas extraction system (4) and gas handling system (5), before car body (1) interior forward end is provided with Driving position (16), middle part is provided with sleeping berth (17), operation monitoring system (18), brakes (19) and electric in the car body (1) System (20);Rear driving position (26) is provided with inside the small drivers' cab (8), small air-conditioning is provided with outside the small drivers' cab (8) (24)。
3. railway according to claim 2 internal combustion electric transmission rescue operation vehicle, it is characterised in that:The generating set (23) electrically connected with power supply follower (25).
4. the railway internal combustion electric transmission rescue operation vehicle according to claim 1,2 or 3, it is characterised in that:The vehicle frame (14) both ends are equipped with hitch (15), and vehicle frame (14) the both ends bottom is equipped with pilot (9).
CN201710830042.1A 2017-09-15 2017-09-15 Railway internal combustion electric transmission rescue operation vehicle Pending CN107458396A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112590855A (en) * 2020-12-28 2021-04-02 中车永济电机有限公司 Electric driving subway shunting locomotive
CN113744595A (en) * 2021-11-02 2021-12-03 成都运达科技股份有限公司 EMUs rescue allies oneself with puts in fact device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1112057A (en) * 1966-04-07 1968-05-01 Sulzer Ag Diesel electric locomotives
CN103129566A (en) * 2011-11-24 2013-06-05 金鹰重型工程机械有限公司 Track double-dynamical engineering vehicle
CN103213525A (en) * 2013-04-18 2013-07-24 宝鸡南车时代工程机械有限公司 Multi-working-face contact network work vehicle
CN105584493A (en) * 2015-08-04 2016-05-18 金鹰重型工程机械有限公司 Rail tunnel detecting operating vehicle
CN105799719A (en) * 2016-05-25 2016-07-27 宝鸡南车时代工程机械有限公司 Novel internal combustion electric transmission rail vehicle
CN206186812U (en) * 2016-11-01 2017-05-24 金鹰重型工程机械有限公司 Straight alternating current of double dynamical friendship passes railcar
CN207225354U (en) * 2017-09-15 2018-04-13 宝鸡中车时代工程机械有限公司 Railway internal combustion electric transmission rescue operation vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1112057A (en) * 1966-04-07 1968-05-01 Sulzer Ag Diesel electric locomotives
CN103129566A (en) * 2011-11-24 2013-06-05 金鹰重型工程机械有限公司 Track double-dynamical engineering vehicle
CN103213525A (en) * 2013-04-18 2013-07-24 宝鸡南车时代工程机械有限公司 Multi-working-face contact network work vehicle
CN105584493A (en) * 2015-08-04 2016-05-18 金鹰重型工程机械有限公司 Rail tunnel detecting operating vehicle
CN105799719A (en) * 2016-05-25 2016-07-27 宝鸡南车时代工程机械有限公司 Novel internal combustion electric transmission rail vehicle
CN206186812U (en) * 2016-11-01 2017-05-24 金鹰重型工程机械有限公司 Straight alternating current of double dynamical friendship passes railcar
CN207225354U (en) * 2017-09-15 2018-04-13 宝鸡中车时代工程机械有限公司 Railway internal combustion electric transmission rescue operation vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112590855A (en) * 2020-12-28 2021-04-02 中车永济电机有限公司 Electric driving subway shunting locomotive
CN113744595A (en) * 2021-11-02 2021-12-03 成都运达科技股份有限公司 EMUs rescue allies oneself with puts in fact device

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