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C70 open-top Railway wagon

C70 open-top railway wagon

Main structure: This wagon cosists of the car body, bogie coupler and buffer and brake system. The car body, consisting of under frame, side wall, end wall, car door and other components, is full of steel welding structure. The main section steel and material are Q450NQR1 high intensity weatherresistant steel. The bogie is type system K6 or K5. The air braking adopts airbreak system with the main pipe pressure of 500kpa and 600kpa. It mainly consists of 120 type control valve, 305mm-diameter integral spinning sealed type brake cyclinder, ST2-250 bidirectional brake shoe slack adjuster, KZW-A empty and load brake regulator and freight car derailment automatic braking system. Manpower brake system is type hand brake. The coupler and buffer is 17 type interlock or new coupler in E-level steel material, MT-2 buffer and oilness nylon coupler yoke support plate wear plate.

Main use: this wagon is used for Chinese standard-gauge railway, mainly to load and transport coal, ore, of building material, machinery equipment, steel, woods and other cargo as the general purpose railway wagon. Besides its capacity for manual loading, it can meet the requirements of mechanical loading by dumper and defreezing silo.

Outline

C70-purpose railway wagon is based on scientific research and development program of Railways "25t axle load generic railway wagon Development" (contract number: 2004J009-A) and 70t-class New Universal railway wagon design task book developed. December 2004, the Ministry of Railway Transport Equipment Department in conjunction with the command center in Beijing Science and Technology Bureau 70t-class experts on new universal railway wagon designs were reviewed. According to review comments, the company completed the design and working drawings trial-like vehicle, and the vehicle body like cars were static strength test, the vehicle impact test and the dynamic performance of the test vehicle.

The car is the main type of common rail 60t class railway wagon upgrade products. The car load of 70t, C64 railway wagon increased over 10 tons deadweight improved by 16.7%, transport by 100,000 vehicles daily basis, increase the transport capacity 1,000,000 tons, an increase of transport capacity 360 million tons. The car vehicle length change of 1.27, according to 5000 t train formation calculations, total vehicle length of 754 m, a decrease of C64 railway wagon 52 meters, suitable for both the 850 m station and cable bridge conditions, under the premise of improving transport energy savings a large number of stations, lines, bridges reconstruction funds, has obvious economic and social benefits.

The car axle 23t, load 70t, speed of 120km / h, marshalling 5000 ~ 10000t, to achieve the "four technical indicators," the synchronous lifting and organic integration, adapted to the Chinese railway "mixed passenger and freight run, efficient turnaround, safe and reliable" special requirements, speed out of a railway wagon, heavy road of independent innovation simultaneously. The successful development of the car, to ease tensions in China's railway transport capacity, has played a crucial role, marking the realization of China's railway GM truck load of 60 tons to 70 tons upgrading and updating of historic leap, integrated technology has reached the international advanced level. Successful C70 Universal railway wagon advent of rail freight offers advanced equipment, the technical basis for the other various types of trucks upgrading, also laid an important foundation for enhancing our railway wagons overall technological level, with significant social, economic efficiency and good development prospects.

The main purpose vehicle

The car is for the Chinese standard gauge railway use, mainly for shipping coal, ore, building materials, machinery and equipment, steel and timber cargo common rail vehicles, except to meet manual handling, but also to adapt dumper other mechanized unloading operations, and can adapt to the requirements of the library thawing.

The main features

The car load 70 tons, an increase of C64 railway wagon car 10 tons deadweight improved 16.7% 100,000 vehicles per day basis, increase the transport capacity 1,000,000 tons, an increase of transport capacity 360 million tons.

Vehicle length change of 1.27, according to 5000 t train formation calculations, total vehicle length of 754 m, a decrease of C64 railway wagon 52 meters, suitable for both the 850 m station and cable bridge conditions, under the premise of improving transport capacity, you can save a lot the station and the cable bridge reconstruction funds.

Extensive use of new materials, new technologies, new processes, new structures, to solve problems both universal railway wagon inertia exists; cancel minor, vehicle maintenance cycle and extended service life, reduced maintenance lifetime maintenance costs.

Using E grade steel coupler 17, forged coupler yoke, improve security and reliability buffer coupler device; brake system uses a modular assembly of new technology to improve assembly quality and operational reliability; accommodate tons of heavy haul train transport requirements.

Optimized chassis structure, the middle set of vehicles carrying capacity to 39 tons, set C64 railway wagon carrying capacity compared with a 70% increase. Using the new neutral doors, door improved stiffness, strength and reliability.

Using Zhuan K6, K7 turn K5 Bogie type or turn improves the quality of vehicle operation, can be adapted to 120km / h speed requirements.

Application

2005 small car production 2000, delivered the Datong-Qinhuangdao line using the test by the end of 2007, the use of the whole road into C70 railway wagon totaling 42,300, a substantial increase in rail freight transport capacity and efficiency in the use of vehicles, vehicle mileage longest running reached 500,000 kilometers, its performance has been excellent vehicle users affirmed.

Development of C70 railway wagon success for rail freight offers advanced equipment, but also laid an important foundation for enhancing the overall technological level of China's railway wagons, with significant social, economic and good prospects for development. 

Main technical parameters

Loading capacity(t)	70
Tare weight(t)	<23.6
Axle load(t)	23
Volume(m3)	77
Special volume(m3/t)	1.1
Coefficient of tare weight	0.33
Load per meter of track(t/m)	<6.69
Commercial operation speed(km/h)	120
Minimum radius of curvature negotiable(m)	145
Length of vehicle(mm)	13976
Length between bogie pivot centers(mm)	9210
Length inside vehicle body(mm)	13000
Width inside vehicle body at upper side plate(mm)	2892
Width inside vehicle body(mm)	2792
Height inside vehicle body(mm)	2050
Coupler centerline height(mm)	880
Maximum width of vehicle(mm)	3242
Maximum height of vehicle(mm)	3143