为解决泥质滩涂贝类采捕过程中,去除淤泥,实现贝泥分离,设计一种基于机械振动的贝类去泥装置.对去泥过程的贝类进行受力分析,测量贝类的物理尺寸,明晰影响去泥性能的主要因素,通过预试验确定各因素的试验取值范围.以条形筛倾角、振动电机转速和偏心块数量为试验因素,明贝率和完成时间为评价指标,以泥蛤为研究对象开展正交试验,分析各因素对去泥性能的影响,获得合理的参数组合,并进行验证试验.结果表明,当条形筛倾角为12°,振动电机转速为2 100 r/min和偏心块数量为16块时,去泥效果和效率较优,明贝率为74％,完成时间为28 s.
Design and experiment of the vibratory cleaning device for shellfish harvesting machine
In order to remove mud and realize the separation of shellfish and mud in the process of collecting and catching shellfish in muddy beach,a shellfish cleaning device based on mechanical vibration was designed.In this paper,the forces on shellfish during the cleaning process were analyzed and the physical dimensions of shellfish were measured,the main factors affecting the cleaning performance were clarified and the test value range of each factor were determined through pre-tests.The inclination angle of the screen,the rotational speed of the vibration motor and the number of eccentric blocks were taken as the test factors,the shell ratio and the completion time as the evaluation indexes,the orthogonal test was carried out with the mud clam as the research object,and the influence of each factor on the cleaning performance was analyzed,a reasonable combinations of parameters was obtained and the validation tests was performed.The results showed that when the inclination angle of bar screen was 12°,the rotational speed of vibration motor was 2 100 r/min and the number of eccentric blocks was 16,the cleaning effect and efficiency were better.The shell ratio was 74％and the completion time was 28 s.
NETL
NSTL
万方数据
