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颚式破碎机是如何实现保险和排矿口调节的?
网址:http://www.dhfjx.cn    发布时间:2018-10-24
颚式破碎机推力板(又称肘板),除了传递动力使动颚板做前后摆动外,同时还具有保险作用,改变其长度还可以起到调节排矿口的作用。颚式破碎机破碎腔内进入不可破碎物(如铁球、铁块等)时,为保护设备主要部件不受损坏而采用后推力板作为破碎机保险部件。后推力板一般用铸铁铸成整体,在其中部开一条槽或若干小孔以降低它的断面强度;也可铸成两块,然后用螺钉(或铆钉)连接起来,组成组合推力板。当不可破碎物进入破碎腔时,设备超负荷,巨大破碎力传给推力板导致推力板折断或组合推力板的螺钉剪断,机器停止工作,起到保险作用。随着齿板的不断磨损,排矿口逐渐变大,产品不断变粗,为了获得合格的产品粒度,需要定期调整排矿口尺寸。排矿口的调整方法主要有以下两种:
The thrust plate of jaw crusher (also called elbow plate) not only transmits power to make the moving jaw plate swing back and forth, but also has the function of safety. Changing the length of the thrust plate can also play the role of adjusting the discharge port. When the jaw crusher enters the crushing chamber into the unbreakable objects (such as iron balls, iron blocks, etc.), in order to protect the main parts of the equipment from damage, the rear thrust plate is used as the crusher safety component. The rear thrust plate is generally cast in cast iron, with a slot or a number of holes in the middle to reduce its cross-sectional strength; it can also be cast into two pieces, and then connected with screws (or rivets) to form a composite thrust plate. When the unbreakable material enters the crushing chamber, the equipment is overloaded, and the huge crushing force is transmitted to the thrust plate, which causes the thrust plate to break or the screw of the combined thrust plate to cut off. The machine stops working and plays a safe role. With the continuous wear and tear of the tooth plate, the outlet becomes bigger and the product becomes coarser. In order to obtain the qualified product size, it is necessary to adjust the outlet size regularly. There are two ways to adjust the ore drain:
移动碎石机租赁
(1)垫片调节,即在后推力板的支承座后面与机架后壁之间放一组垫片,增减垫片数量或改变其厚度,便可达到调节排矿口之目的。此法结构紧凑、调节可靠,大、中型颚式破碎机多用这种调节方法。
(1) Gasket adjustment, that is, a set of gaskets is placed between the back of the support seat of the rear thrust plate and the back wall of the rack to increase or decrease the number of gaskets or change the thickness of gaskets, so as to achieve the purpose of regulating the discharge port. This method is compact in structure and reliable in regulation. Large and medium-sized jaw crusher uses this adjustment method.
(2)楔块调节,是用放在推力板后座与机架之间的两个楔块调节,适宜小型破碎机采用。
(2) Wedge adjustment is used to adjust the two wedges between the back seat of the thrust plate and the frame, which is suitable for small crushers.
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