The material selection and machining accuracy of the worm gear are also very important. Use 10P polyoxymethylene (POM), or use glass fiber reinforced nylon or reinforced polycarbonate (PC). However, pOM has good comprehensive performance, high bowing, rigidity, impact, fatigue, and creep resistance. In particular, it has outstanding fatigue resistance and is easy to form. It is the best among thermoplastic engineering plastics. It has a small and stable friction coefficient, low water absorption, good dimensional stability, and low price, so it is our best choice.
In order to buffer the impact force generated by starting in the forward and reverse directions and ensure the life of the transmission parts, the transmission disc needs to be equipped with a rubber transmission disc with good oil resistance, wear resistance, high bow change and good elasticity under high temperature and low thirst. The structure size is matched with the worm gear. , Embedded in the worm gear. The material is nitrile butadiene rubber with excellent oil resistance, and its heat resistance is also better than natural rubber and nitrile rubber. Matched with the rubber drive disc and embedded in the worm wheel is a metal drive disc with 3 uniformly distributed on the disc.
Motor drive disc Five-window motor noise cut-off system When electromagnetic design, we first consider the suppression or reduction of motor noise. In terms of equipment, the armature bearing position and the matching of the bearing chamber are also required. Choose low-noise copper-based (or iron-based) oil-impregnated bearings, and choose copper: ink brushes. The matching gap between the carbon brush and the brush holder should be no more than 0.1lnrn on one side. During the trial operation, the contact surface of the carbon brush should be >70%. The surface of the commutator on the armature should be controlled within 0.01m. In addition, the manufacturing precision and matching clearance of the worm and worm gear, and the axial clearance of the motor should be strictly controlled.
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