The utility model relates to a special tool for mounting the upper guide bearing of a hydroelectric generator, which comprises a ratchet wrench, a crown cap, a screw rod and a screw handle. Through a crown cap connected with a ratchet wrench glove, a screw rod matched with a crown cap and a screw handle connected with a screw rod, a rotatable mechanism is formed. Through the crown cap, the back of the upper guide bearing bush is contradicted, and the screw rod contacts the upper guide bearing seat ring, and the ratchet wheel is The operating rod of the wrench adjusts the expansion of the screw rod with rotation, and adjusts the rotation direction of the ratchet wheel through the ratchet reversing blade. The utility model overcomes the problems of too small space between the bearing bush and the large shaft in the installation and maintenance process of the guide bearing of the original hydroelectric generator, which is inconvenient to operate and not close to each other. The utility model has the advantages of simple structure, large operation space, convenient operation, wide adjustable range, close fit and high installation and maintenance efficiency.
【技术实现步骤摘要】
水轮发电机上导轴承安装专用工具
本技术属于水轮发电机安装维护
,涉及一种水轮发电机上导轴承安装专用工具。
技术介绍
葛洲坝电站0号发电机上导轴承在轴瓦间隙调整时,需先将12块上导瓦从背面顶紧大轴,使上导瓦面与大轴贴紧。顶瓦工具一直沿用长70mm左右的M16螺栓(带螺母)、S24扳手。具体操作方法为,1块上导瓦背面对称架设2颗螺栓,螺栓一端顶在上导轴承座圈上,另一端顶在上导瓦背面,用扳手旋转螺栓上的螺母使之顶紧瓦背,从而达到顶瓦目的。此方法实际上将普通螺栓作为顶丝顶瓦用,存在如下缺陷:1.瓦背面与轴承座圈之间距离为70mm左右,架设螺栓时,需要将螺栓一端固定在轴承座圈某点,另一端通过手旋转螺母固定于瓦背面,操作时人手难以放进此空挡,螺栓经常掉落,操作极其不方便,影响安装维护效率;2.顶瓦时,用一个扳手限制螺栓头部转动,另一个扳手旋转螺母,受限于狭小的操作空间,旋转螺母力度偏小,影响瓦面与大轴的贴合度,顶瓦没有处于顶紧状态,直接影响上导瓦间隙调整质量。3.螺栓、螺母属标准件,将螺栓作为顶丝,受限于螺母厚度,顶丝长度可变量较小,难以选择到恰当长度的螺栓。专利技术内 ...
【技术保护点】
1.一种水轮发电机上导轴承安装专用工具,其特征是:它包括棘轮扳手(1)、顶帽(2)、丝杆(3)和丝杆把手(4);所述顶帽(2)与棘轮扳手(1)的棘轮配合;所述丝杆(3)与顶帽(2)螺纹配合;所述丝杆把手(4)与丝杆(3)连接;所述棘轮扳手(1)与丝杆把手(4)配合旋转,丝杆(3)伸展或收缩。
【技术特征摘要】
1.一种水轮发电机上导轴承安装专用工具,其特征是:它包括棘轮扳手(1)、顶帽(2)、丝杆(3)和丝杆把手(4);所述顶帽(2)与棘轮扳手(1)的棘轮配合;所述丝杆(3)与顶帽(2)螺纹配合;所述丝杆把手(4)与丝杆(3)连接;所述棘轮扳手(1)与丝杆把手(4)配合旋转,丝杆(3)伸展或收缩。2.根据权利要求1所述的水轮发电机上导轴承安装专用工具,其特征是:所述棘轮扳手(1)的棘轮换向片(13)位于棘轮柱体头部(11)的上侧面,操作杆(12)与棘轮柱体头部(11)连接。3.根据权利要求1或2所述的水轮发电机上导轴承安装专用工具,其特征...
【专利技术属性】
技术研发人员:杨举,任飞,王庆书,吴定平,王涛,蔡佳恒,
申请(专利权)人:中国长江电力股份有限公司,
类型:新型
国别省市:湖北,42
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