Milling Precision shaped pieces of nylon gear Jia Jing County, Hebei

Allison King County the production of PA wheels nylon wheels, welcome to order. 1> nylon "6" use this product with good toughness, wear resistance, oil resistance, earthquake, etc., suitable for the production of wear-resistant parts, transmission structure, appliance parts, automotive parts. Such as turbines, gears, bearings, impeller, vane, screw, high pressure washers, seals, nuts, screws, shuttle, sleeves, sleeve connectors, wide use of this product is good material plastic and steel. <2> nylon "6" Performance varieties qualities polymers, carbon black, old age, graphite powder, short glass fiber reinforced materials. Performance Table. Performance indicators IindexI Property type TypeII type TypeIII type Type relative viscosity 1.90-2.10> 2.10-2.30> 2.30 specific gravity (g / cm3) 1.151.151.15 melting point oC) 210-230195-210195-210 moisture Moisture (%) ≤1.51.51.5 pull tensile strength Tensile Strength (Kg / cm2) ≥400400400 deep fracture rate (%) ≥100100100 bending strength (Kg / cm2) ≥700700700 impact strength (unnotched) No Notch) (Kg / cm / cm2) 350350450 <3> Characters nylon Appearance is white to light yellow, uniform particles without mechanical impurities and surface moisture, particle size greater than 40 / g containing several tiny black particles are less than 2%, is characterized by toughness, seismic, high mechanical strength and resistance heat resistance, impact strength is better, high melting point, good processing behavior, large water absorption, saturated suction Hebei Jingxian Rubber Products Factory Jia nylon gear milling machine precision rate of about 11 percent water, fusible phenol in sulfuric acid class or formic acid, low temperature embrittlement temperature of minus 20 degrees -30 degrees. Features sleeve bearing cast nylon for the sleeve as follows: (1) wear resistance, good self-lubrication, it has one of the higher value of PV in general thermoplastics. (2) Under the conditions of solid particles invade the friction surface, can still maintain good abrasion resistance. (3) easy sintering. Not to hurt the journal. (4) is about more than a small proportion of copper metal 1/8, easy loading and unloading. Cast nylon bushings on the results of the trial mining machinery mold proof nylon material than with Babbit and copper sleeve wear. MC nylon (Monomer Casting Nylon), also known as monomer cast nylon, high strength, good toughness, impact resistance, fatigue resistance, and has good creep resistance, sound absorption, resilience and good wear resistance, self-lubricating, and a variety of other unique properties Hebei milling precision machining material not bonded nylon gear, is widely used in engineering plastics in almost all industrial fields. Because of the above unique properties of MC nylon, use MC nylon material gear will play a better role than the metal gear in some cases. Compared with traditional metal gear MC nylon gear strength and elastic modulus lower unbearable heavy load, so limiting its precision milling machine should Hebei nylon gears fields. In order to better applied to engineering practice, this paper on the mechanical properties of MC nylon gear ramp was analyzed, the main work and research as follows: 1. The plastic gears on the current application and development in the industrial field, the application of finite element method gear modal analysis and finite element method for contacting gears research status and progress of simulation analysis, a brief Hebei milling machining precision nylon gear overview. 2. Through the combination of SolidWorks and its plug GearTrax, HyperMesh and ANSYS software to build a three-dimensional finite element model of the Deputy helical gears and helical gears. The geometric model from the establishment to the final finite element calculation method for engineers and researchers finite element analysis provides a fast and effective way. 3. Based on the above modeling, application of ANSYS Block Lanczos method Hebei milling precision machining of MC nylon nylon gear helical gear modal analysis, extraction of cheap natural frequencies and corresponding main modes, better studied the inherent characteristics of the system, to reduce vibration and Hebei gear milling machining precision nylon gear transmission gear noise and prevent resonance frequency of the exciting force should be staggered with the natural frequency of the system. 4. Establishment of MC nylon helical gear meshing dimensional finite element model, by applying the full ANSYS transient dynamics method, the meshing helical gear transmission process computer simulation Hebei milling machining precision nylon gears. The results show that the maximum stress appears in the gear tooth position, maximum stress 84.3MPa, meet the strength requirements of the load conditions. Contact line contact line width and tilt angle can reflect the gear pair during meshing gears running smoothness. Simulation results for the gear contact line width of 1.33mm, the contact line inclination angle gear helix angle substantially equal, which suggests helical gear engagement through Hebei nylon gear milling precision machining process run can remain relatively stable. Meanwhile, the simulation also got the tooth root stress spectrum, provide the basis for calculation of the fatigue life of gear. These findings have some reference value into a precision milling machine Hebei Jingxian Allison nylon gear step development, improvement and optimization of gear. Finally, further research has made elaborate.