One of the important direction of overloading, the railway development

Overloading, 2020 - one of the important direction of the development of the railway 01 - 30 in railway transportation, civil oriented passenger rail need to shorten the passenger travel time as much as possible, so is the development direction of high speed emu train passenger; And in the field of transport more large scale freight, you will need to fully reflect the scale of transportation, so the pursuit of greater quality and axle load of traction overloading is internationally recognized as development direction of railway freight transport. The main characteristics of railway carriage of goods by overloading is the train longer, weight increase, realize direct transport all the way, through the adoption of high power ac drive locomotive, large axle load and low weight of truck, train control synchronous control technology, to make the railway freight volume, low cost advantage is more obvious, a substantial increase in railway in the long distance and bulk cargo transport market competitiveness. Let's look at how the steel dragon is high precision. China in recent years has been committed to developing in the field of overloading. After China overloading transportation 'experimental' exploration of daqin railway line overload, overloading technology constantly achieve new breakthroughs, 30 tons of large axle load technology system is increasingly perfect. Railway opened for tile, 2015 is the first in the world by 30 tons of overloaded railway axle load standard of the construction of the railway, and one of the overloaded railway development milestone of China. The heavy-duty train axle load, the greater the capacity requirements for train wheel shaft. As heavy-duty train carrying capacity and reliability requirements unceasing enhancement, all countries in improving vehicle axle, bearing structure, such as shortening the distance between axle shaft load center to its roots. Choose sealing better, design more compact wheel bearing, etc. , to effectively improve the system of axle load capability and reliability. As a key part of the wheel bearing, played a key role in it. Without significant increase in the volume under the premise of effectively improve the bearing capacity, bearing is bound to increase the power density of bearing. Bearing power density, however, is by the material, structure design, raceway modification factors such as comprehensive decision performance. In addition to the bearing itself has the excellent quality, for heavy-duty train this kind of special working condition of the application of knowledge and experience also appears especially important. 120 - year - old timken as the authority of the tapered roller bearing, it is in the early 1930 s the bearing capacity of bearing products applied to freight trains, and iteration constantly with the evolution of railway freight transportation applications. With more than 100 years of research and practice experience, timken optimized geometric design, the application of advanced surface processing technology, advanced surface treatment technology, and constantly improve the purity of steel and other means to continuously improve product quality and performance, makes the power density of optimization. Launched in 2013, Timken® 美联社- 2™ Short G wheel bearing is reached 45 tons of axle load carrying capacity. The comparison of different power density bearing Timken® 美联社- 2™ Bearing is high-speed and heavy railway industry to two of the most basic function of transportation, one is mainly responsible for passenger transportation, one of the main responsible for the freight. Today which progresses by leaps and bounds in railway technology, transport capacity will challenge high, power density of railway bearing has been a new challenge. This is Timken such always focus on product and technology constantly advancing our enterprise can give full play to the value of the perfect platform. （ Source: timken)