Shanghai Zenith jaw series crusher referred to as “jaw crusher”. This series products have the feature of big crushing ratio, uniform end product size, simple structure, reliable operation, easy maintenance, economic operation, etc. Jaw crusher is widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry, and many other departments, broken various material compressive strength less than 320 million mpa.
The gasket to adjust.
Fixing a set of gaskets, equal to the thickness of the back thrust plate between bearing and rack back wall. We can increase or decrease the number of gasket as working,then the crusher row ore mouth decrease or increase.
This method can realize multilevel adjustment and the machine is compact in structure,which can reduce equipment weight.But you must make sure that the machine is stop working when adjusting equipment.General large jaw crusher choose this adjustment method.
Wedge block adjustment
With the help of a bearing thrust plate and frame after the relative movement of the wall between the two wedge to realize the adjustment of the crusher row ore mouth.
Turning the nut on the bolt, by the wedge block up or down along the back wall frame for mobile, drive the wedge before moving forward or backward, thus promote the thrust plate, in order to achieve the purpose of the adjustment for the row ore mouth.
This method has the advantages that achieving stepless adjustment, convenient and quick, save time, not to stop as the adjustment.But this wedge block adjustment method increase the size and weight of the machine. Usually,small jaw crusher is often used in the adjustment device.
This kind of crusher on the connecting rod is equipped with a hydraulic oil cylinder and piston.The ylinder connected to the upper connecting rod,and the piston and the thrust plate bearing. As normal working, full of pressure in the cylinder oil, piston and cylinder is in the connecting rod of a whole.
When crushing cavity into the foreign body to be broken, the stress that the connecting rod bearing is increases quickly, which leads to increased oil cylinder hydraulic suddenly.The connecting rod will push flow valve, pressure oil being squeezed out, and the piston and cylinder to loosen.
Installation of hydraulic driving cylinder to adjust the row ore mouth, reliable safety, and easy to troubleshoot.