The utility model discloses a waterproof belt pulley for vertical explosion-proof air-cooled motor, which comprises a belt pulley, an upper umbrella-shaped guard plate and a lower umbrella-shaped guard plate. The upper umbrella-shaped guard plate and a lower umbrella-shaped guard plate are respectively fixed with the upper and lower end faces of the belt pulley through bolts. The rubber sealing ring I is arranged between the upper umbrella-shaped guard plate and the belt pulley, and the lower umbrella-shaped guard plate and the belt pulley. The upper and lower end surfaces are provided with annular grooves matching with the rubber sealing ring I. The center of the upper umbrella guard plate is provided with a circular convex platform matching with the central groove of the pulley. The lower umbrella guard plate is an annular hollow structure, and the lower end face edge of the lower umbrella guard plate is provided with an annular water guide groove. The water-proof pulley of the utility model can fundamentally solve the damage caused by rainwater and man-made water spraying through the front axle to the motor, facilitate the maintenance and maintenance of the motor, reduce the maintenance frequency, save funds and human resources.
【技术实现步骤摘要】
一种立式防爆空冷电机用防水皮带轮
本技术涉及电机领域,具体涉及一种立式防爆空冷电机用防水皮带轮。
技术介绍
化工行业装置区内的干式空冷区电机为一般采用户外立式安装,下雨时雨水会沿电机皮带轮的锥套、键槽渗到电机前轴,再由轴面渗入电机轴承室和电机内部;当空冷器降温效果不好时,还采用水淋方式辅助降温,水更会沿皮带、皮带轮通过电动机前轴面进水则更为严重。电机进水后直接导致电机前轴承室的润滑脂变质,轴承损坏,各部件生锈,绕组绝缘性能降低,严重时导致绕组短路,电机损坏。对生产造成损失。现有的技术解决方案,大多采用电机上方焊接防水板来进行防水,这样的缺陷在于:1)若防水板面积过大会影响空冷风扇的动平衡,2)若防水板面积小则起不到防水效果,3)现场环境容易共振,不易安装,4)日常维护保养空冷器时,影响皮带的拆、装,5)维修电动机时影响拆卸。
技术实现思路
本技术的目的在于克服现有技术存在的缺点,提供一种立式防爆空冷电机用防水皮带轮。为了实现上述目的,本技术的技术方案是:一种立式防爆空冷电机用防水皮带轮,包括皮带轮,其特征在于:还包括上伞状护板和下伞状护板,所述上伞状护板、下伞状护板均通过 ...
【技术保护点】
1.一种立式防爆空冷电机用防水皮带轮,包括皮带轮,其特征在于:还包括上伞状护板和下伞状护板,所述上伞状护板、下伞状护板均通过螺栓分别与皮带轮的上、下端面固定,所述上伞状护板与皮带轮之间、下伞状护板与皮带轮之间均设有橡胶密封圈Ⅰ,所述皮带轮的上、下端面均设有与橡胶密封圈Ⅰ匹配的环形凹槽,所述上伞状护板中心设有与皮带轮中心凹槽相匹配的圆形凸台,所述下伞状护板为环形中空结构,所述下伞状护板下端面边缘设有环形导水槽。
【技术特征摘要】
1.一种立式防爆空冷电机用防水皮带轮,包括皮带轮,其特征在于:还包括上伞状护板和下伞状护板,所述上伞状护板、下伞状护板均通过螺栓分别与皮带轮的上、下端面固定,所述上伞状护板与皮带轮之间、下伞状护板与皮带轮之间均设有橡胶密封圈Ⅰ,所述皮带轮的上、下端面均设有与橡胶密封圈Ⅰ匹配的环形凹槽,所述上伞状护板中心设...
【专利技术属性】
技术研发人员:穆金海,杨海军,杨化雨,李海瑞,
申请(专利权)人:利华益利津炼化有限公司,
类型:新型
国别省市:山东,37
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