From the design select material proceed with improves the service life of gnathic type crusher

  • The working orgnaization of crusher of type of another name for Hubei province is by the job that changes Ehe to decide another name for Hubei province to form antrum is comprised, move another name for Hubei province and the attrition action that decide E Cheng to get vast broken power and stock, grind easily bad, to protect board of another name for Hubei province, moving another name for Hubei province and the surface that decide another name for Hubei province to install the scaleboard of wear-resisting commonly, this kind of scaleboard calls crushing shell again. The surface of crushing shell normally make it tooth form, the angle of peak of crushing shell tine is 90° ~ 120° , its size by be mixed by the property of broken stock piece spend and decide, when broken chunk stock, angle wants somes of big; broken when small stock, angle but somes small. The size of pitch depends on the granuality of the product, take normally approximate the width that gives makings opening, of tooth depth and pitch than desirable for 1/ 3 of 1/ 2 ~ . When the job, speed of tatty of the below two parts on crushing shell is different, bottom wears away some more quickly than upside, crushing shell is when job of crusher of type of another name for Hubei province, contact with stock directly, bear the attrition action of vast broken power and stock, the service life of crushing shell matters to the work efficiency of crusher of type of another name for Hubei province and manufacturing cost directly, accordingly, the service life of the crushing shell that lengthens crusher of type of another name for Hubei province appears particularly important. It is OK to strengthen another name for Hubei province to destroy crushing shell service life from design, select material, assemble and the respect regard such as the improvement in use process. When 1 design, select material is being designed, the crushing shell that uses Ehe to decide another name for Hubei province should age the peak is opposite tine cereal. Such, broken when to stock besides having extruding effect, still have curve action, stock is easier and broken. To enhance the service life of crushing shell, medium or small the form that the crushing shell of crusher designs fluctuation semmetry, after instantly ministry wears away adjustable the crushing shell of crusher of type of large another name for Hubei province designs head use; a few of mutual semmetry, so that wear away hind can use crushing shell exchange. The material of crushing shell can choose white mouth cast-iron. Hardness of Bai Kouzhu iron bigger, wearability better, origin is easy, low-cost; defect is the gender breaks off fragily, easily, service life is brief. To improve the service life of crushing shell, the manganese steel that material uses above of the 12 % that contain manganese is better, commonly used is ZGMn13. The tenacity of manganese steel is better, although hardness is not tall (it is 210 HB) about, but, because have the characteristic of cold working sclerosis, can ceaseless below pressure action by aggrandizement, reason wears away ceaselessly in the job ceaseless aggrandizement, until wear away to cannot use ability to discard as useless. Manganese steel wants to be handled through Shui Ren after crushing shell mould, the operation substantially that Shui Ren handles and quench identical, namely cast the manganese steel crushing shell that come out to heat 1 100 of 1 000 ~ is after ℃ in water fast refrigeration. After Shui Ren is handled, can get even metallographic is organized, make metallographic organizes solid to come down surely, avoided in use to abiogenesis photograph changes and make function becomes poor. The defect of manganese steel is the price more expensive, but wait for a respect from service life, cost total consideration, more cast-iron than white mouth service life grows ZGMn13, cost is low. 2 assemble when assembling, crushing shell must be stuck firmly it is on board of another name for Hubei province, both between should level up, soft metal should be used between crushing shell and E Banzhi (wait like lead, zinc) make spacer, originally closely with bolt. When crusher works, crushing shell is not due shake a phenomenon, break off easily otherwise or wear away crushing shell, lower the service life of crushing shell. So, good crushing shell must be installed when assembling, prolong the service life of crushing shell thereby. The life with strengthening crushing shell is improved to be in manufacturing process in 3 use processes, crushing shell and stock are direct action, broken power is very great, especially when the stock with broken bigger hardness, bring about the bolt vibration that installs crushing shell, nut becomes loose, make crushing shell wears away aggravate produces huge noise, serious when crushing shell falls off or break off make equipment stops machine, affect normal production. Encounter this kind of situation, before just switching on the mobile phone, screw bolt, nut cannot solve a problem thoroughly, want the real case according to the spot specific issue is specific analysis, think method adopts practical method to solve a problem. For example, can use bedspring to prevent loose vibration absorber to solve crushing shell to become loose mediumly in the job, prolong the service life of crushing shell thereby, improve work efficiency. Particular way is to use bolt of bedspring make it to prevent become loose reach tighten device oneself, this device by inside bedspring gland, bedspring, outside bedspring gland composition, wear this device on bolt to screw nut, because bedspring is gone to by nut impaction after certain level, produce very strong vibration isolation result, the bolt that arises by vast broken power shakes force to be made up for automatically by bedspring tensile force, reason bolt will not become loose, prolong the service life of crushing shell thereby, improve manufacturing efficiency. Anyhow, can think in the light of particular case in use process method solves specific problem, prevent crushing shell to become loose, wear away aggravate, break off wait for a circumstance, prolong the service life of crushing shell thereby, reduce cost, improve work efficiency. 4 conclusion strengthen another name for Hubei province to destroy crushing shell service life from the design select material, assemble, the respect such as the improvement in use process begins, can strengthen another name for Hubei province to destroy crushing shell service life well, improve the manufacturing efficiency of crusher of type of another name for Hubei province thereby, reduce manufacturing cost.