我们先后对我矿使用的φ1000×700毫米反击式破碎机进行一些改进。改进后的破碎机结构牢固,衬板寿命延长,锤头使用时间增加,并且更换拆卸方便,生产能力也有一定程度提高。(一)锤头的改进改进前,锤头和锤头固紧螺丝(6枚)都是整个暴露于滚筒体上(图1A),直接与矿石碰砸,所以磨损很快。处理中硬矿石时,运转8小时后就因磨坏螺丝,锤头松脱而被迫停车更换,每次更换需要1～2小时。为此,我们作了如下改进:将锤头下半截置于改进后的有凹槽的滚筒体内,锤头由下部齿牙与带齿牙的两块楔形铁啮合而置于筒体凹槽内,楔形铁置于筒体两侧,由穿过其中心孔的一根长螺丝将其沿弹簧斜面拉紧稳固,从而使锤头紧固(图1B)。当锤头上部磨损一段时间后,可向上调整啮合齿牙, We have made some improvements to the φ1000 × 700mm impact crusher used at mine. Improved crusher solid structure, liner life expectancy increased, the use of hammer time increases, and the replacement of easy disassembly, production capacity has also been improved to some extent. (A) the improvement of the hammer Before the improvement, hammer and hammerhead screws (6) are exposed to the drum body (Figure 1A), directly hit the ore hit, so wear fast. Handling of hard ore, after 8 hours of operation due to worn screws, hammer loose and forced to stop replacement, each replacement takes 1 to 2 hours. To this end, we made the following improvements: the lower half of the hammer is placed in the improved grooved cylinder body, the hammer by the lower teeth and two wedged iron with toothed teeth and placed in the cylinder groove , Wedge-shaped iron placed on both sides of the cylinder, by a long screw through its center hole along the spring bevel tension firmly, so that the hammer head (Figure 1B). When the upper part of the hammer worn for a period of time, the teeth can be adjusted upwards,