Ringkesan：Jaw crusher yaiku jinis peralatan mekanik sing digunakake ing industri penambangan lan konstruksi kanggo ngancurake watu lan bahan gedhe dadi potongan cilik.
Apa Iku Jaw Crusher?
Jaw crusher yaiku jinis peralatan mekanik sing digunakake ing industri penambangan lan konstruksi kanggo ngancurake watu lan bahan gedhe dadi potongan cilik. Jaw crusher kerja kanthi nggunakake rahang sing obah lan rahang tetep kanggo ngancurake lan ngiles watu. Bahan kasebut dipangan menyang jaw crusher dening pemakan getar, banjur dihancurkan ing antarane loro rahang.
Jaw crusher digawe saka sawetara bagéan, kalebu rahang tetep, rahang obah, lan pelat toggle. Rahang tetep dipasang ing rangka jaw crusher, lan rahang obah dipasang ing pitman. Pitman iku komponen obah sing disambungake karo pelat toggle liwat serangkaian tuas. Pelat toggle tanggung jawab kanggo ngetransmisikake daya saka pitman menyang rahang obah.
The moving jaw is mounted on an eccentric shaft, which allows it to move up and down in a circular motion. As the moving jaw moves down, it crushes the material against the fixed jaw. The material is then discharged from the bottom of the jaw crusher, and it is ready for further processing.
There are several types of jaw crushers available on the market, including single-toggle jaw crushers, double-toggle jaw crushers, and overhead eccentric jaw crushers. Single-toggle jaw crushers are the most common type, and they are designed with a large feed opening and a simple toggle mechanism. Double-toggle jaw crushers are more advanced, and they have a more complex toggle mechanism that allows for more precise control of the crushing process. Overhead eccentric jaw crushers are less common, but they are designed with an eccentric shaft that causes the moving jaw to move in a more circular motion, which allows for a more efficient crushing process.
Jaw Crusher Working Principle
The working principle of a jaw crusher is that when the jaw rises, the angle between the fixed jaw and the moving jaw becomes larger, and the materials can be crushed. All jaw crushers feature two jaws: one of which is fixed while the other moves. The working principle of jaw crushers is based on the reciprocating movement of the movable jaw that compresses and crushes the rock or ore between itself and the fixed jaw, as the material enters the zone between the jaws.
The crushing process takes place when the feed material between the two jaws is compressed and crushed by the moving jaw. As the moving jaw moves away from the fixed jaw, the crushed material is discharged from the crusher at the bottom, with the size of the discharged material determined by the gap between the jaws.
The crushing action of a jaw crusher is caused by the motion of its swing jaw. The swing jaw moves back and forth by a cam or pitman mechanism, acting like a nutcracker or a class II lever. The volume or cavity between the two jaws is called the crushing chamber. The movement of the swing jaw can be quite small, since complete crushing is not performed in one stroke. The inertia required to crush the material is provided by a weighted flywheel that moves a shaft creating an eccentric motion that causes the closing of the gap.
Jaw crushers are usually constructed in sections to ease the process transportation if they are to be taken underground for carrying out the operations. Jaw crushers are classified on the basis of the position of the pivoting of the swing jaw. Blake crusher-the swing jaw is fixed at the upper position; Dodge crusher-the swing jaw is fixed at the lower position; Universal crusher-the swing jaw is fixed at an intermediate position.
Suitable for crushing hard and abrasive materials, jaw crusher is commonly used as primary crushers in quarrying, mining, recycling due to their reliable performance. Factors to consider include material type, feed size, desired output size, capacity, power requirements, costs and maintenance needs. Mobile and stationary versions cater to different site requirements.
In summary, jaw crusher is robust machines ideal for initial crushing stages across many industries. Understanding their design and selecting the right type ensures optimized performance for any crushing application.
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