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近年来,随着农业机械化程度的不断提高,在农用机械设备与工具的安装、维修工作中的焊接工作量也日益繁重,例如:拖拉机曲轴颈、凸轮轴、变速器、十字节等零件的堆焊;铸铁件和可锻铸缺件如后桥体、机油盘、制动片、护刃器(这些工件由于特殊焊条的要求,应使用直流电源焊接)以及各种农业机械零件与工具的焊补等。最常用是手弧焊的交流或直流电源。为此,迅速设计与制造适用于农业的手工焊接电源设备,是一项迫切的任务。一、农业用焊接电源的特点和要求基于农业生产及农村环境的特点,对于电焊设备的基本要求是绝对可靠、安全、维修方便、使用简易、价格低廉。在结构上要求轻便、易于携带、适宜于农村流
In recent years, as the degree of agricultural mechanization continues to increase, the amount of welding work involved in the installation and maintenance of farm machinery equipment and tools is also becoming more and more heavy. For example, tractor crankshafts, camshafts, transmissions, Welding; cast iron pieces and malleable cast pieces such as rear axle body, oil pan, brake pads, guard blade (these parts due to the special electrode requirements, should be used DC welding) and a variety of agricultural machinery parts and tools welding Make up. The most commonly used hand arc welding AC or DC power supply. For this reason, the rapid design and manufacture of manual welding power supply equipment for agriculture is an urgent task. First, the characteristics of agricultural welding power supply and requirements Based on the characteristics of agricultural production and rural environment, the basic requirements for welding equipment is absolutely reliable, safe, easy maintenance, easy to use, low cost. In the structure requires light, easy to carry, suitable for rural flow