source: http://en.tsxbsy.com/news370574.html release time: 2018-8-22 9:06:00
Nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; jaw crusher in mining, building materials, infrastructure and other departments are mainly used as crusher and crusher. According to the width of the inlet, it can be divided into three types: large, medium and small. The machine whose inlet width is greater than 600MM is large, the machine whose inlet width is 300-600MM is medium, and the machine whose inlet width is less than 300MM is small. The jaw crusher is simple in structure, easy to manufacture and reliable in operation.
nbsp; nbsp; nbsp; nbsp; nbsp; jaw crusher's working part is two jaw plates, one is fixed jaw plate (fixed jaw), vertical (or upper extroverted slightly) fixed on the front wall of the body, the other is movable jaw plate (movable jaw), the position is inclined, and fixed jaw plate to form the upper jaw cavity (working cavity). The movable jaw plates do periodic reciprocating movements against the fixed jaw plates, sometimes apart, sometimes approaching. When separated, the material enters the crushing chamber, and the finished product is discharged from the lower part; when approaching, the material installed between the two jaw plates is squeezed, bent and split and broken. Do you know how to reduce the failure rate of jaw crusher? Let's take a look at it.
before the jaw crusher starts, the jaw breaking equipment must be thoroughly inspected. In the process of operation, we should always pay attention to whether the large ore is stuck in the feeder of the crusher. If it has been stuck, we should use iron hook to turn over the ore. If the large ore needs to be taken out from the crusher, we should adopt special equipment and strictly prohibit hand to do these work, so as to avoid accidents. Before starting the jaw crusher, the oil pump motor and the cooling system should be started first. After 3-4 minutes, when the oil pressure and the oil flow indicator are normal, the jaw crusher motor should be started again. It must start at no load, and after a certain period of operation, the ore feeding equipment can be started.
jaw crusher because of the heavy weight, poor working conditions, and the machine in operation and produce a great inertia force, causing the foundation and machine vibration. First of all *** to stop ore feeding, until the crushing chamber of all ore discharged, then stop the crusher and belt machine. But at this time, the crusher is not allowed to stop running. At the same time, in order to reduce vibration, rubber or wood should be placed between the crusher foundation and the frame.
nbsp; nbsp; nbsp; if the jaw crusher stops suddenly for some reason, it must clear the deposit of ore in the crushing chamber before it is ready to start up after the accident is handled. In operation, it is also necessary to periodically inspect the broken parts of the jaw and the bearing temperature of the crusher. For large jaw crushers, the sliding bearing temperature usually does not exceed 60 degrees, so as to prevent the burning accident of the alloy bearing bearing caused by the melting of the sand and stone equipment.
When it is found that the bearing temperature of jaw crusher is very high, do not stop running immediately. Effective measures should be taken to reduce the bearing temperature (such as increasing oil supply, forced ventilation or water cooling etc.) in time. When the bearing temperature drops, it can stop for checking and troubleshooting. Eight hundred and eighty-eight thousand one hundred and eleven