The utility model relates to a multipurpose combined bolt, which is composed of an oil cylinder and a piston. The cylinder hole is a stepped hole, the stepped hole is arranged on the step surface oil groove in the bottom of the oil groove is provided with a groove communicated with the oil hole and the oil in the oil tank, the upper and lower sides are respectively provided with a sealing ring; the piston is ladder shaped cylinder and the cylinder is provided with a round through hole of each. Hole in the middle of the cylinder in axial and circular holes around the axis is provided with a plurality of threaded holes penetrating. The circular through hole is provided with a replaceable bolt, and the plurality of through threaded holes are respectively provided with push bolts. The combined bolt preload has speed, preload advantages even and accurate, and has the advantages of combining large mechanical parts can be changed by replacing the bolts with different sizes of the thread hole or large nut.
【技术实现步骤摘要】
一种多用组合螺栓
本专利技术涉及一种多用组合螺栓,属于螺栓制造领域。
技术介绍
目前预紧大型机械零件所用大型螺栓,在与大型机械零件的螺纹孔或大型螺母相配时,均为单一生配对,即一种大型螺栓只能与其尺寸规格相同的大型机械零件的螺纹孔或大型螺母相配,当大型机械零件的螺纹孔或大型螺母尺寸规格发生改变时,大型螺栓本体必须全部更换,浪费资源与人力。
技术实现思路
针对现有大型螺栓存在的不足,本专利技术提供一种多用组合螺栓,其由螺栓本体组成。其特征在于:所述螺栓本体由油缸和活塞组成。所述油缸内孔为阶梯形通孔,在阶梯形通孔阶梯面上设有油槽,在油槽底部设有与油槽相通的油孔,在油孔上径向设有接头,在所述油槽上下两侧分别设有密封圈;所述活塞为与油缸内孔相配的阶梯形圆柱体,在阶梯形圆柱体中间轴向设有圆形通孔,在圆形通孔四周轴向设有多个穿透螺纹孔。在所述圆形通孔上设有可换螺栓,在可换螺栓的顶部设有六角孔。在所述多个穿透螺纹孔上分别设有顶推螺栓,顶推螺栓的顶端分别与设于油缸上端面的垫片相接触。本专利技术的有益效果是:既具有快速、均匀、精确预紧的优点,又具有通过更换螺栓本体上可换螺栓的尺寸规格,实现一个螺栓本体可与多个大型机械零件的螺纹孔或大型螺母相配,节约原材料与制造成本的优点。附图说明图1是本专利技术的结构示意图。图2是图1的俯视图。图中:1.油缸,2.活塞,11.内孔,12.油槽,13.油孔,14.接头,15.密封圈,16.垫片,21.圆形通孔,22.螺纹孔,23.可换螺栓,24.顶推螺栓,231.六角孔。具体实施方式如图1和图2所示,本专利技术提供了一种多用组合螺栓,由螺栓本体组成 ...
【技术保护点】
一种多用组合螺栓,由螺栓本体组成,其特征在于:所述螺栓本体由油缸和活塞组成,所述油缸内孔为阶梯形通孔,在阶梯形通孔阶梯面上设有油槽,在油槽底部设有与油槽相通的油孔,在油孔上径向设有接头;所述活塞为与油缸内孔相配的阶梯形圆柱体,在阶梯形圆柱体中间轴向设有圆形通孔,在圆形通孔四周轴向设有多个穿透螺纹孔,在所述圆形通孔上设有可换螺栓,在可换螺栓的顶部设有六角孔,在所述多个穿透螺纹孔上分别设有顶推螺栓,顶推螺栓的顶端分别与设于油缸上端面的垫片相接触。
【技术特征摘要】
1.一种多用组合螺栓,由螺栓本体组成,其特征在于:所述螺栓本体由油缸和活塞组成,所述油缸内孔为阶梯形通孔,在阶梯形通孔阶梯面上设有油槽,在油槽底部设有与油槽相通的油孔,在油孔上径向设有接头;所述活塞为与油缸内孔相配的阶梯形圆柱体,在阶梯形圆柱体中间轴向设有圆形通孔,...
【专利技术属性】
技术研发人员:耿晓曦,
申请(专利权)人:江苏智拓机械有限公司,
类型:发明
国别省市:江苏,32
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