φ2100毫米圆锥破碎机机座大铜套(φ690×1235)的固定方法,原一直延用苏联浇注锌合金固定法。这种固定方法固牢能力差,铜套易松动上升而碎裂;有时则由于锌合金碎裂后其细颗粒进入油路引起油管堵塞或减少了进入的油量,并在铜套内表面附着锌颗粒,从而发生缺油,破坏油膜的形成,致使铜套发热烧毁及破裂。同时,浇注锌合金的操作麻烦,不安全,稍有不慎即易发生浇注不完全、或夹有气泡等质量事故,以及锌合金液体炸溅伤人,由于上述原因,仅在1964年一年内,我们铜官山选厂的三 φ2100 mm cone crusher frame large copper sleeve (φ690 × 1235) fixed method, the original has been extended to the Soviet Union pouring zinc alloy fixation. This fixed method is poor solid capacity, easy to loose copper sleeve rise and fragmentation; and sometimes due to zinc alloy fragmentation after the fine particles into the oil pipe to cause blockage or reduce the amount of oil into the copper sleeve and the inner surface attached Zinc particles, resulting in lack of oil, the destruction of the formation of oil film, resulting in burned copper fever and rupture. At the same time, the pouring of zinc alloy trouble, unsafe, a little careless that is prone to pouring incomplete, or the quality of the accident such as bubbles, and zinc alloy liquid explosions wounding, for the above reasons, only in 1964 a year , We Tongguan Hill plant three