The HXD 1 electric locomotive consists of two identical single-ended cab four-axle locomotives connected by internal reconnection chains to form an eight-axle locomotive, which becomes a complete system. The driver can control the reconnection car in the cab; Equipped with remote reconnection control system, suitable for multi-machine distributed heavy haul traction; The car body adopts the central beam bearing mode; Independent ventilation mode; Axis 2 (bo-bo); The power per shaft of AC traction motor is 1200 kW, and the total power of eight-axle locomotive is 9600 kW. The axle load of the locomotive is 25 tons, and the conversion of the axle load of the locomotive of 23 tons can be realized by removing the counterweight inside the locomotive; The control system adopts Siemens SIBAS 32 series microcomputer control and TCN network communication technology; The auxiliary power supply system is integrated with the main circuit system, and technologies such as variable frequency asynchronous traction motor, IGBT power module traction inverter, MVB and WTB are adopted. Pantograph is TSG 15 pantograph produced by Zhuzhou Jiufang Electrical Equipment Company, and its technology is provided by Siemens MWW Company. The basic braking system is disc braking system, CCB air braking system is adopted, and the electric braking system is regenerative braking.
The HXD 1 electric locomotive also has Shenhua number. Specially built for Shenhua Group. The locomotive consists of three sections, 12 axles, and the power of each axle is constant, with a total power of 14400kW.
In 2004, in order to realize the long-term railway network planning of China Railway, the Ministry of Railways established the policy of "introducing advanced technology, jointly designing and producing, and building China brand" to promote the modernization of railway rolling stock equipment. From June, 5438 to February, 2004, the Ministry of Railways signed a contract with Zhuzhou Electric Locomotive of China South Locomotive Group and Siemens Company of Germany to order 180 eight-axle high-power freight locomotives, with a total contract value of 7.34 billion yuan. The first locomotive manufactured by Zhuzhou Electric Locomotive was delivered on June 8, 2006, with the vehicle numbers DJ4 000 1A and 0001B. At the beginning of the factory, the media once called it "Dragon". Shortly after leaving the factory, the first two locomotives were renamed "Harmony" (HXD), and the car numbers were also changed to HXD 1-0xxx. At that time, it was the most powerful AC drive electric locomotive in China railway. By the end of 2007, Zhuzhou Factory * * * had manufactured more than 20 locomotives of type HXD 1, of which 1 10 was delivered in 2007. By the end of 2009, 220 locomotives of HXD 1 have been produced.
The HXD 1 locomotive was delivered to Hudong Locomotive Depot in taiyuan railway administration in 2007, which is mainly used to haul heavy-duty freight trains carrying coal on Daqin Railway. HXD 1 locomotive can haul 20,000 tons of heavy-haul combined trains. In May 2009, the electrification project of Datong-Baotou Dabao Railway was completed, and the relevant parties introduced HXD 1 locomotives for this line. The route of Harmony 1 electric locomotive allocated by Hudong Locomotive Depot extends to Dabao Line.
On August 18, 2007, the Ministry of Railways signed a contract with Zhuzhou Electric Locomotive and Siemens to order 500 six-axle locomotives. Developed on the prototype of EuroSprinter electric locomotive, the total contract value exceeds 334 million euros. The model of the new car is hxd1b.
In June, 2008, 5438+065438+ 10, the Ministry of Railways cancelled the order for 40 locomotives of HXD 1 and demanded that Zhuzhou Electric Locomotive immediately stop producing this type of locomotive. The reason is unknown.
See the entry of HXD 1 electric locomotive for details. HXD2 electric locomotive is an eight-axle high-power AC drive electric locomotive used for trunk freight transportation. It was jointly developed by CNR Datong Electric Locomotive Co., Ltd. and Alstom Transport Co., Ltd., and was designed on the basis of Alstom PRIMA series electric locomotives according to the specific conditions of China railway. The locomotive model code is HXD2 (the serial number is manufacturer code: 2 stands for Datong electric locomotive), which is generally called "Harmony" type 2 electric locomotive (vehicle number HXD2-xxxx). Before the vehicle was named "Harmony", it was called "DJ4", and the number started from 600 1. HXD2 electric locomotive is one of the important products of China railway locomotive technology modernization.
HXD2 locomotive adopts standardized and modular design. Each locomotive consists of two four-axle carriages, and the single-ended cab is fixed and reconnected. The locomotive body adopts the whole load-bearing welded body structure, and has no cross beam frame, corrugated plate side wall, middle corridor and integral independent ventilation system. Structural control of distributed microcomputer network: axial bo-bo: the axle load of locomotive is designed to be 25 tons, and the axle load of locomotive can be converted to 23 tons by removing the counterweight inside the locomotive; The traction drive control system is independent shaft control mode, with a single shaft power of 1200 kW and a total locomotive power of 9600 kW, which is the locomotive with the largest single shaft power among all locomotives in China Railway. A single machine can pull 7000 tons of heavy-duty trains; The locomotive has the remote synchronous control function of multi-machine wireless reconnection, and the three-machine reconnection can meet the traction requirements of heavy-haul trains with more than 20 thousand tons. The locomotive can be stored normally at -40℃ and can be used normally after taking heating and cold-proof measures.
HXD2 locomotive is one of the AC drive electric locomotives jointly developed by Chinese and foreign enterprises in China Railway. On June 1 1, 2004, CNR Datong Electric Locomotive signed a framework agreement on technology transfer and cooperative production with Alstom France. In March 2007, 12, Datong electric locomotive and Alstom Company jointly won the procurement contract of the Ministry of Railways, with the order quantity of 180 vehicles and the total contract amount of 374.5 million euros. Among them, the first 12 vehicle (hxd2-0001~ hxd2-0012) was manufactured in Belfo. 36 vehicles (hxd2-00 13 ~ hxd2-0048) are assembled by parts of Datong electric locomotive; The remaining 132 vehicles (HXD2-0049 ~ HXD2-0 180) are "localized" versions. The first HXD2 locomotive was shipped from France on June 5438+February, 2006, and arrived at China Tianjin Port on June 5438+ 10. On May 18, 2007, the first domestic assembled HXD2 locomotive was rolled off the assembly line of Datong electric locomotive. By June 65438+February 2008, all 180 locomotives were delivered.
See the entry of HXD2 electric locomotive for details.