Jaw crusher crusher is a member of the family, its characteristic is simple principle, convenient and cost-effective outstanding, in the multitude of mill plant practice regard it as a preparation equipment for coarse broken preferred. Liming heavy industry in the production of jaw crusher has accumulated years of experience, the design of the jaw plate and broken bearing comprehensive adopted advanced wear-resistant materials and protection technology.

Because of the jaw crusher by hubei and set up of hubei working cavity of great crushing force and the material of the friction effect, easy to wear and, in order to protect the jaw plate, we set in hubei and the surface of the hubei Ann the wear-resisting lining board, the lining board is also known as crushing plate. Crushing plate surface usually make tooth profile, the broken plate of teeth Angle is 90 ° ~ 120 °, its size by materials, and the properties of blocks of the broken broken chunks of material, Angle be larger; Broken small piece of material, Angle can be smaller. The size of the pitch depends on the size of the product, usually take about equal to the width of the discharging mouth, the ratio of depth to pitch desirable for 1/2 ~ 1/3. Work, crushing plate fluctuation two parts wear speed is not the same, lower than the upper wear faster, crushing plate in jaw crusher work, direct contact with the material, under a lot of crushing force and the material of the friction effect, crushing plate mandibles crusher is directly related to the life of the work efficiency and production cost, therefore, prolong the service life of jaw crusher broken board is particularly important. To strengthen the service life of the broken broken plate of hubei can be used from the design, material selection, assembly and improvement in the process of the consideration. when the design of the jaw crusher movement of hubei and hubei crushing plate should be of teeth the tooth valley. So, the broken besides squeezing effects for the material, when there are bending effect, the material is easy to broken. In order to enhance the service life of the crushing plate, small and medium-sized crusher crushing plate into the shape of a symmetrical design, when the lower wear adjustable head after use; Large jaw crusher crushing plate pieces that are designed to be symmetrical each other, so that the wear after crushing plate switch can be used. Crushing plate materials can choose white cast iron. White cast iron is larger hardness, good wear resistance, easy source, low price; The disadvantage is that brittle and easily broken, short service life. In order to improve the service life of the crushing plate, material better by more than 12% of manganese content in manganese steel, commonly used is ZGMn13. Although manganese steel has good toughness, hardness is not high (about 210 hb), however, because has the characteristics of cold hardening, the stress under the action of will continue to be strengthened, and therefore, in the work wear and strengthen continuously, scrapped. Only wear to cannot use. Manganese steel after crushing plate casting through water toughening treatment, the operation of water toughening treatment generally the same as the quenching, namely the manganese steel casting out crushing plate heating to 1000 ~ 1100 ℃ after rapid cooling in the water. After water toughening treatment can get a homogeneous microstructure, and fixed the microstructure, avoided in use natural phase change and make the performance becomes poor. The disadvantage of manganese steel is more expensive, but from the overall consideration, service life and cost ZGMn13 than white cast iron long service life, low cost. Assembly, jaw crusher crushing plate must be firmly attached to the jaw plate, between the two should be flat, between crushing plate and jaw plate with soft metal gasket (such as lead, zinc, etc.), and bolts. Crusher, crushing plate should not have loose phenomenon, otherwise easy to break or wear crushing plate, reduce the service life of the broken plate. Therefore, the assembly must be installed crushing plate, so as to prolong the service life of the broken plate.

In the process of production, the broken plate and material directly, crushing force is very big, especially when broken larger material hardness, lead to install bolts crushing plate vibration, loose nut, crushing plate wear and great noise, serious when broken plate fall off or broken equipment downtime, affect the normal production. Encounter this kind of situation, only tighten the bolt, nut is not complete before starting the solution to the problem, according to the actual situation of site specific issues specific analysis, to find a way to take a practical approach to solve the problem. For example, locking spring damping device can be used to solve the broken loose board in your work, so as to prolong the service life of crushing plate, improve the work efficiency. Particular way is to use spring to make bolt looseness and self-tightening device, the device by the inner spring gland, spring, spring, wear the device tighten nut on the bolt, because the spring is nut after pressure to a certain extent, have strong vibration effect, produced by the large crushing force of bolts loose power by spring tension, automatically compensate for bolt not loose, so as to prolong the service life of crushing plate, improve production efficiency. In short, in use process can according to the specific circumstances to find a way to solve specific problems, to prevent crushing plate is loose, wear, broken, etc., so as to prolong the service life of crushing plate, reduce costs, improve work efficiency.