顎式破碎機/復(fù)擺式顎式破碎機/河南鄭州顎式破碎機廠家/顎破機

顎式破碎機的工作部分是兩塊顎板，一是固定顎板（定顎），垂直（或上端略外傾）固定在機體前壁上，另一是活動顎板（動顎），位置傾斜，與固定顎板形成上大下小的破碎腔（工作腔）。活動顎板對著固定顎板做周期性的往復(fù)運動，時而分開，時而靠近。分開時，物料進入破碎腔，成品從下部卸出；靠近時，使裝在兩塊顎板之間的物料受到擠壓，彎折和劈裂作用而破碎。

顎式破碎機（顎破）分簡單擺動顎式破碎機和復(fù)雜擺動顎式破碎機兩種類型，它們的工作原理很相似，動顎的運動軌跡有較大的差別。簡單擺動顎式破碎機，因動顎是懸掛在支承軸上，所以當動顎作往復(fù)運動時，動顎上各點的運動軌跡都是圓弧形，而且水平行程上小下大，而以動顎的底部（排礦口處）為大。由于落入破碎腔的礦石，上部均為大礦塊，往往達不到礦石破碎所必需的壓縮量，故上部的大塊礦石，需反復(fù)壓碎多次，才能破碎。破碎負荷大都集中在破碎腔的下部，整個顎板沒有均勻工作，從而降低了破碎機的生產(chǎn)能力。同時這種破碎機的垂直行程小，磨剝作用小，排礦速度慢。但顎板的磨損較輕，產(chǎn)品過粉碎少。復(fù)雜擺動顎式破碎機，由于其動顎又是曲柄連桿機構(gòu)的連桿，在偏心軸的帶動下，動顎上點的運動軌跡近似橢圓形，橢圓度是上小下大，其上部則近似圓形。這種破碎機的水平行程正好與簡擺顎式破碎機相反，其上部大下部小，上部的水平行程約為下部的1.5倍，這樣就可以滿足破碎腔上部大塊礦石破碎所需的壓縮量。同時整個動顎的垂直行程都比水平行程大，尤其是排礦口處，其垂直行程約為水平行程的3倍，有利于促進排礦和提高生產(chǎn)能力。實踐表明，在相網(wǎng)條件下，復(fù)擺顎式破碎機的生產(chǎn)能力比簡擺顎式破碎機高30%左右。但顎板的磨損快，產(chǎn)品過粉碎嚴重。

Jaw crusher/Compound pendulum jawcrusher/Zhengzhou jaw crusher manufacturer in Henan/Jawcrusher

The working part of a jaw crusher consists oftwo jaw plates. One is a fixed jaw plate (fixed jaw), which isvertically (or slightly inclined at the upper end) fixed on thefront wall of the machine body. The other is a movable jaw plate(movable jaw), which is inclined in position and forms a crushingchamber (working chamber) with a larger upper part and a smallerlower part with the fixed jaw plate. The movable jaw plate performsperiodic reciprocating motion against the fixed jaw plate,sometimes separating and sometimes approaching. When separated, thematerial enters the crushing chamber and the finished product isdischarged from the lower part; When approaching, the materialplaced between the two jaw plates is crushed by compression,bending, and splitting.

Jaw crushers (jaw crushers) are divided intotwo types: simple swing jaw crushers and complex swing jawcrushers. Their working principles are very similar, but the motiontrajectory of the moving jaw has significant differences. A simpleswing jaw crusher, because the moving jaw is suspended on asupporting shaft, the motion trajectory of each point on the movingjaw is arc-shaped when it performs reciprocating motion, and thehorizontal stroke is small in the upper part and large in the lowerpart, with the bottom of the moving jaw (at the discharge port)being the largest. Due to the fact that the ore falling into thecrushing chamber consists of large ore blocks in the upper part, itoften cannot achieve the necessary compression for ore crushing.Therefore, the large ore blocks in the upper part need to berepeatedly crushed multiple times before they can be crushed. Thecrushing load is mostly concentrated in the lower part of thecrushing chamber, and the entire jaw plate does not work evenly,thereby reducing the production capacity of the crusher. At thesame time, this type of crusher has a small vertical stroke, lowgrinding and stripping effect, and slow ore discharge speed. Butthe wear of the jaw plate is relatively light, and the product isless crushed. The complex swing jaw crusher, due to its moving jawbeing a connecting rod of the crank connecting rod mechanism, isdriven by an eccentric shaft, and the motion trajectory of theupper point of the moving jaw is approximately elliptical, with asmall ellipticity at the top and a large ovality at the bottom,while its upper part is approximately circular. The horizontalstroke of this crusher is exactly opposite to that of a simpleswing jaw crusher, with a larger upper part and a smaller lowerpart. The horizontal stroke of the upper part is about 1.5 timesthat of the lower part, which can meet the compression re crushing large ore blocks in the upper part of the crushingchamber. At the same time, the vertical stroke of the entire movingjaw is greater than the horizontal stroke, especially at thedischarge port, where the vertical stroke is about three times thehorizontal stroke, which is conducive to promoting ore dischargeand improving production capacity. Practice has shown that undergrid conditions, the production capacity of a compound pendulum jawcrusher is about 30% higher than that of a simple pendulum jawcrusher. But the wear of the jaw plate is fast, and the product isseverely crushed.