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首页> 外文期刊>Engineering & Mining Journal >New electric motros, drives and controllers designed for mine-duty service
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New electric motros, drives and controllers designed for mine-duty service

机译：专为矿山服务而设计的新型电动机，驱动器和控制器

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摘要

The global mining boom has been a welcome development for drive, motor and control-system vendors as producers bring new mines online and expand existing operations-ordering equipment to outfit their new facilities or to replace worn-out items that were kept in service during the previous market downturn. And, true to the concept of the old adage "a rising tide lifts all ships," new equipment orders and emerging technologies often result in higher demand for metals and industrial minerals-at least symbolically if not substantially. Take copper, for example. Several years ago, a copper-industry trade organization published a news release listing the amount of copper contained in the various engine and propulsion systems of the largest haul trucks-the ultra-class, 360- to 400-ton-capacity models from Komatsu, Liebherr and Terex. At the time, each of these electric-wheel-drive units required nearly 2 tons of the red metal for their AC generators and motors alone, along with another ton or more in their radiators. Even Caterpillar's 797 mechanical-drive ultra-class hauler- without wheel motors or electric-drive equipment-contained roughly 2.5 miles of copper wiring and several hundred pounds of copper welding bead.
机译：对于驱动器，电机和控制系统供应商来说，全球采矿业的繁荣是可喜的发展，因为生产商将新的矿山投入在线并扩展现有的操作订购设备以装备其新设施或替换在运输过程中一直使用的磨损物品。先前的市场低迷。而且，正如老话所说的“潮头抬起所有船只”一样，新的设备订单和新兴技术通常导致对金属和工业矿物的需求增加，至少在象征意义上，如果不是很大的话。以铜为例。几年前，一家铜工业贸易组织发布了一条新闻稿，列出了最大的运货卡车（小松生产的360至400吨的超大容量型号）的各种发动机和推进系统中所含的铜量。利勃海尔和特雷克斯。当时，这些电动轮驱动单元中的每一个仅需其交流发电机和电动机就需要将近2吨的红色金属，而散热器中还需要另外一吨或更多的金属。甚至连卡特彼勒的797机械驱动超一流牵引车（无轮电动机或电驱动设备）也包含约2.5英里的铜线和几百磅的铜焊珠。

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