The invention relates to a sealed waterproof pressure-resistant pulley and pulley block for maritime work underwater operation. The sealed waterproof pressure-resistant pulley and pulley block comprises a pulley shaft (1), a gland (2), a shaft sleeve (3), a transparent cover (6) and a pulley (7), wherein the gland (2) and the transparent cover (6) are respectively provided with a pair of radial labyrinth sealed waterproof pressure-resistant structures. Compared with the prior art, the sealed waterproof pressure-resistant pulley and pulley block has the advantages that the multiple radial labyrinth sealed waterproof pressure-resistant structures are creatively adopted, so that water and silt are effectively prevented from entering a bearing of the pulley when the pulley (pulley block) worksunderwater, and the service life of the novel pulley is greatly prolonged; and the novel structure can bear certain water pressure, so that the safe operation under deep water (500 meters or below) is guaranteed.
本发明涉及一种用于海工水下作业的密封防水耐压滑轮及滑轮组,包含:滑轮轴(1)、压盖(2)、轴套(3)、透盖(6)、滑轮(7),其中压盖(2)和透盖(6)分别配有一副径向迷宫式密封的防水耐压结构。与现有技术相比,本发明创造性地采用了径向迷宫式密封的多重防水耐压结构,保证滑轮(组)在水下工作时,有效防止水和泥沙进入滑轮的轴承,使该新型滑轮的工作寿命大幅提高,新型结构能够耐受一定的水压力,保证在深水下(500米以下)安全作业。
Sealed waterproof pressure-resistant pulley and pulley block for maritime work underwater operation
一种用于海工水下作业的密封防水耐压滑轮及滑轮组
2020-08-11
Patent
Elektronische Ressource
Chinesisch