SQ37A型切叶丝机下排链齿轮轴轴承仅靠防尘垫片保护,在日常清洗排链时轴承内容易进水,导致润滑油劣化进而造成轴承损坏,从而影响排链输送系统的正常运行,影响切丝质量.为此,对SQ37A型切叶丝机齿轮轴轴承的密封和润滑部分进行了改进:即改进了轴承座,使用油封代替原防尘垫片；设计了加油装置；选用新型耐水润滑脂代替原铝基润滑脂.改进后应用效果表明,增强了齿轮轴轴承的密封防水能力,减少了进水对轴承的损害；实现了对轴承的周期性润滑,提高了润滑脂的可靠性.轴承的使用寿命由原来的6个月提高到18个月,降低了轴承的更换频次,减小了维修工作量,降低了备件成本.%In SQ37A tobacco cutter, the dustproof gasket for bearing of gear shaft of bottom slat band is not effective for preventing water from entering the bearing while the band is under daily washing, which results in lubrication oil deterioration and bearing damage, and the proper running of band is affected. Therefore, the sealing and lubrication for the gear shaft bearing were improved as following: modifying bearing pedestal, replacing dustproof pad with oil seal, adding an oiling device; replacing aluminum grease with water-resistant grease. The results of application indicated that the sealing and waterproof of the bearing and the reliability of lubrication grease were improved; bearing damage caused by water erosion was reduced, the maintenance work and the cost of spare parts reduced; the life of the bearing increased from 6 to 18 months; and the periodical lubrication of the bearing was realized.
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