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70—2单体播种机原与机力七(十一)铧犁和辽宁一号起垅中耕机配套,用轮式或履带拖拉机牵引。该机对垅距、株距调整范围大,用橡胶轮刷种,点播成穴性好,结构紧凑,调整方便,工作可靠,成为目前农村社队普遍使用的播种机具,被评为我省重大科技成果之一。当前为手扶拖拉机配套的播种机由于结构上的缺陷,还不能满足农机、农艺要求,影响手扶拖拉机在农田作业中的应用。为了解决好手扶拖拉机和70—2单体播种机的配套,我站研制了四连杆仿形机构,并对复土装置进行了改制(图1)。经过多次试验,生产考核,效果较好,既可垅播,又可平播。尤其对园
70-2 single seeder original and mechanical power Seven (11) plow and Liaoning on the 1st 垅 cultivator supporting, with wheeled or tracked tractor traction. This machine has a wide range of adjustment to span and spacing, with rubber wheel brushing, good on-demand cavitation, compact structure, easy adjustment and reliable work. It has become the most widely used sowing machine in rural communities and has been appraised as a major science and technology of our province One of the results. At present, due to the structural defects, the planter supporting the tractor is still unable to meet the requirements of agricultural machinery and agronomy, and affects the application of walking tractors in farmland operations. In order to solve the good tractor and 70-2 single seeder supporting, I developed a four-bar linkage profile agencies, and the rehabilitation of the earth-moving device (Figure 1). After many tests, production tests, the effect is better, either broadcast or broadcast. Especially on the park