松籽具有很高的营养价值和一定的药用价值。据测算一吨松籽经脱壳可增值4,000元,而用人工脱壳劳务费则需2,500元,因此实现脱壳机械化会有显著的经济效益。目前多项专利脱壳机,按加载方式可分为对辊碾压式和钳夹挤压式等两种,但由于一次破壳率低和松籽仁破损率高,而影响机器的推广和使用.脱壳机性能差的一个重要原因,是对松籽自身的尺寸特点和压缩破坏的力学性能缺乏完善可靠的基础数据,从而使人们不可能精确控制破壳装置的结构参数和运动参数。本文主要阐述松籽壳体的几何特征和各种压缩破坏试验的测试方法与结果。一、松籽壳体的几何特征松籽由封闭的外壳和籽仁构成,松籽仁的外层紧裹着一层很薄的红衣皮,在红衣皮之外则是坚硬、粗 Pine nuts have high nutritional value and certain medicinal value. It has been estimated that one ton of pine nut can be sheared for an additional value of $ 4,000, whereas manual shelling requires $ 2,500. Therefore, there is a significant economic benefit in achieving shelling mechanization. At present, a number of patent shelling machine, according to the loading method can be divided into two kinds of roller-type and squeeze squeeze, but because of a broken shell rate and pine nuts damage rate is high, which affect the promotion of the machine and An important reason for the poor performance of the shelling machine is the lack of perfect and reliable basic data for the size and compression-damaged mechanical properties of the pine seed so as to make it impossible to precisely control the structural parameters and the movement parameters of the shelling device. This paper mainly expounds the geometric characteristics of pine shell and the test methods and results of various compression failure tests. First, the geometric characteristics of the pine seed shell Pine nuts by the closed shell and seed kernels, pine seed kernels tightly wrapped in a thin layer of red outer skin, outside the red skin is hard, thick