反击式破碎机 Impact Crusher

反击式破碎机（新型反击式破碎机）：
　　反击式破碎机，是利用冲击能来破碎石料的碎石机械。反击式破碎机工作时，在电动机的带动下，转子高速旋转，物料进入板锤作用区时，与转子上的板锤撞击破碎后抛至反击衬板上再次撞击破碎，然后又从反击衬板上弹回到板锤作用区重新撞击破碎，此过程重复进行，石料由大到小进入第一、第二、第三破碎腔重复进行破碎，石料经被破碎后由出料口排出。调整反击架与转子之间的间隙或调节转子转速，改变出料粒度。
　　反击式破碎机破碎产出的成品石子呈似立方体、无张力、无裂缝，符合高速公路、高速铁路、搅拌站等对石子的质量要求。适用于中等偏硬以下硬度、进料粒度≤300mm、出料粒度≤50mm石料的破碎（具体进出料粒度要根据石料硬度并通过选择机型来确定）。
　　公司对反击式破碎机的技术参数进行了优化。转子板锤采用卡块压紧装置装配，装卸简便、运转安全可靠；科学设计撞击角度，增大撞击力，使石料在破碎腔内下行过程中重复多次形成石料与板锤、石料与反击衬板、石料与石料之间相互撞击，从而提高石料的破碎率、提高成品产量、降低磨损成本；在两腔机型中增加底座撞击衬板，形成第三破碎腔，增加撞击次数；侧门加大，板锤、反击衬板更换或机腔内检查维护更加方便。
　　新型反击式破碎机，主轴改用40Cr钢材加工；轴承改用欧洲优质品牌专用轴承；增加配置均衡送料器，使石料在破碎腔内分布均匀，增加石料的撞击面；采用Z型板锤、板锤利用率高；采用可移动式方钢，当板锤磨损、板锤与方钢间隔过大时，移动方钢避免间隔过大而漏料，确保石料的全部撞击破碎，从而保证成品石子的质量。已获国家专利。

　　Impact Crusher(New Type Impact Crusher)：An impact  crusher  is a stone crushing machinery using impact energy to crush  stones . When the impact crusher is working, the rotor driven by the electromotor rotates at a high speed, and the  stones enter  the functioning area of   blow bars  and impact the blow bars mounted on the rotor  and are crushed , and  then thrown onto the impact liners to be crushed again by impact,  and rebounded into the functioning area of  blow bars to be crushed  once more by impact. Such a  process will be repeated for stones to enter the 1st, 2nd and 3rd crushing cavity based on the size range from big to small until the crushed stones are  small enough to escape from the bottom discharging port .  It is possible to change the discharge sizes by adjusting the space between the impact rack and the rotor , or by adjusting the rotating speed of the rotor .
　　The crushed stone product  produced by impact crusher  is of a similarly cubic shape  , free of tension and free of fissures, meeting the requirement of high quality stipulated by expressway , high-speed  rail and cement mixing station  and so on. It is suitable for crushing  stones with  less than medium hardness and with feeding sizes of no more than 300 mm and discharging  sizes of  no more than 50 mm(however, the specific feeding and discharging sizes  should be decided by the  stone hardness and by choosing crusher models .).
　　Our company has optimized the technical parameters of impact crusher . Blow bars on the rotor are assembled with clamping block  devices , easy to be installed  and dismantled ,and safe and reliable to operate. The impact angles are designed scientifically , increasing the impact force . Repeated impact between stones and blow bars , between stones and impact  liners, and rock-on-rock will occur for many times when the stones move down in the crushing cavity, leading to higher crushing rate and higher finished product output, and less abrasion cost . Impact liners are added on the base of the two-chamber type impact crusher for forming the third crushing cavity and increasing impact times . The side door is enlarged,  and it becomes more convenient to replace blow bars and impact liners, or to make examinations  and carry out maintenance inside the  machine  chamber.
　　New Type Impact Crusher : The main shaft  is made of 40Cr steel instead. Dedicated  quality bearings of European  brand are used instead ; an equilibrium feeder is added,  allowing  stones to distribute uniformly in the crushing cavity and improving the utilization of  impacting space inside the crushing cavity. Z type blow bars are adopted for higher utilization  rate  of  blow bars. Movable  square steel is adopted . When  the gap between the blow bar and square steel becomes too big because of  blow  bar  abrasion , the square steel may be moved to avoid too big gap and  stone leakage  , ensuring all stones crushed by impact and the quality of finished  gravels. The new type impact crusher has been awarded national patent .

技术参数Technical  parameters