筛砂是一种比较繁重的体力劳动,目前生产的筛砂机已有多种,但大多是体积大,结构复杂,转移不便,价格昂贵,使用要求较高。因此,中小企业及现场使用筛砂机仍有困难。该公司通过实践研制出一种构造简单、轻便、灵活的振 Sand screening is a relatively heavy physical labor. There are many types of sand screening machines currently produced, but most of them are large in size, complicated in structure, inconvenient to transfer, expensive, and require high requirements. Therefore, there are still difficulties for SMEs and site use of sand-sanding machines. The company developed a simple, lightweight, flexible vibration