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本期封面所刊登图片是浙江乐清重型机械配件厂生产的十字轴式万向联轴器。十字轴式万向联轴器是重要的机械基础件之一,这一新技术的出现和推广有力地推动了国内外机械工业的发展。它对工业技术改造和机械产品的更新换代提供了有利条件。这种联轴器可广泛应用于冶金轧钢机械、工程机械、起重机、矿山机械、石油化工机械,以及船舶工业等。它与老式梅花接轴,铜滑决万向接轴和齿轮联轴器相比具有转动灵活、平稳、效率高、寿命长,允许轴折角大,润滑维护简便,以及传递力矩范围很大等显著优点,可满足现代工业的需要。
The picture posted on the cover of this issue is a cross shaft universal coupling produced by Zhejiang Yueqing Heavy Machinery Parts Factory. Cross-axis universal coupling is one of the important mechanical basis parts, the emergence of this new technology and promotion of a strong impetus to the development of machinery industry at home and abroad. It provides favorable conditions for industrial technology reform and the upgrading of mechanical products. This coupling can be widely used in metallurgical steel rolling machinery, construction machinery, cranes, mining machinery, petrochemical machinery, and shipbuilding industries. Compared with the old plum shaft, copper sliding shaft and gear coupling, it has the advantages of flexible rotation, smoothness, high efficiency, long service life, large shaft angle, easy lubrication and maintenance, and great transmission torque range Advantages, to meet the needs of the modern industry.