CN205780190U - 一种高强度防脱双头螺柱组件 - Google Patents
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Abstract
本实用新型公开了一种高强度防脱双头螺柱组件,包括双头螺柱和配套的螺母,所述螺母为圆柱型螺母,在圆柱型螺母的外周面上圆周开设有一圈用于卡装月牙扳手的卡孔,各卡孔间隔均布,在卡孔中分别设有用于旋装顶丝的内螺纹,在所述双头螺柱的两端螺纹表面轴向开设有用于与顶丝止旋配合的键槽。本实用新型的高强度双头螺柱连接组件利用旋入圆柱形螺母卡孔中的顶丝与双头螺柱上的键槽配合,当可以有效避免圆柱形螺母的松动,从而确保双头螺柱组件的连接稳定性,本实用新型的高强度防脱双头螺柱组件整体结构简单、装配拆卸方便,有效解决了现有技术存在的问题。
Description
技术领域
[0001 ]本实用新型涉及一种高强度防脱双头螺柱组件。
背景技术
[0002]双头螺柱是一种轴向两端皆具有螺纹的柱状紧固件,通过分别旋装在螺柱两端螺纹上的六角螺母将待连接的部件夹紧固定。目前,双头螺柱在桥梁、船舶、塔吊、矿山机械等大跨度钢结构设备中普遍使用,这类大跨度钢结构设备在使用过程中普遍存在震动现象,而常规的双头螺柱连接件在使用一段时间后螺母很容易受震动影响发生松动甚至脱落现象,造成设备无法安全运行,存在较大的安全隐患。
实用新型内容
[0003]本实用新型的目的是:提供一种使用寿命长、螺母不易脱落的高强度防脱双头螺柱组件,以解决现有技术存在的问题。
[0004]本实用新型的技术方案是:一种高强度防脱双头螺柱组件,包括双头螺柱和配套的螺母,所述螺母为圆柱型螺母,在圆柱型螺母的外周面上圆周开设有一圈用于卡装月牙扳手的卡孔,各卡孔间隔均布,在卡孔中分别设有用于旋装顶丝的内螺纹,在所述双头螺柱的两端螺纹表面轴向开设有用于与顶丝止旋配合的键槽。
[0005]所述双头螺柱和螺母的螺纹为梯形螺纹。
[0006]所述的卡孔为外大内小的台阶孔,所述的螺纹开设于台阶孔的小孔段。
[0007]本实用新型的高强度双头螺柱连接组件是在双头螺柱的两端螺纹上开设键槽,在圆柱形螺母的卡孔中旋装顶丝,当使用月牙扳手将圆柱形螺母拧紧到位后,在对应键槽位置处的卡孔中旋入顶丝,利用顶丝与键槽之间的配合可以有效避免圆柱形螺母的松动,从而确保双头螺柱组件的连接稳定性,本实用新型的高强度防脱双头螺柱组件整体结构简单、装配拆卸方便,有效解决了现有技术存在的问题。
附图说明
[0008]图1为本实用新型高强度防脱双头螺柱组件的结构示意图。
具体实施方式
[0009]本实用新型的高强度防脱双头螺柱组件的具体实施例如图1所示,其包括双头螺柱I及分别用于旋装在双头螺柱I两端的螺母2、3,其中,螺母2、3均采用圆柱型结构,在圆柱型的螺母2、3的外周面上圆周分别开设有一圈用于卡装月牙扳手的卡孔5,各卡孔5围绕圆周间隔均布,在各卡孔5中分别开设有用于旋入顶丝6的内螺纹;在双头螺柱I的两端螺纹表面分别轴向开设有用于与顶丝6止旋配合的键槽4。使用时,当使用月牙扳手将两圆柱形螺母2、3拧紧到位后,在对应键槽4位置处的卡孔5中旋入顶丝6,顶丝6卡入键槽4中,从而可以避免两圆柱形螺母2、3受震动影响发生松动,保证了双头螺柱组件的连接稳定性和可靠性。本实施例中,两圆柱形螺母2、3上的卡孔均为外大内小的台阶孔,台阶孔的大孔段用于与月牙扳手配合,所述的内螺纹均开设于台阶孔的小孔段,这样可以避免月牙扳手在使用时损坏内螺纹,保证顶丝旋入和取出的顺畅。
Claims (3)
1.一种高强度防脱双头螺柱组件,包括双头螺柱和配套的螺母,其特征在于,所述螺母为圆柱型螺母,在圆柱型螺母的外周面上圆周开设有一圈用于卡装月牙扳手的卡孔,各卡孔间隔均布,在卡孔中分别设有用于旋装顶丝的内螺纹,在所述双头螺柱的两端螺纹表面轴向开设有用于与顶丝止旋配合的键槽。
2.根据权利要求1所述的高强度防脱双头螺柱组件,其特征在于,所述双头螺柱和螺母的螺纹为梯形螺纹。
3.根据权利要求1所述的高强度防脱双头螺柱组件,其特征在于,所述的卡孔为外大内小的台阶孔,所述的螺纹开设于台阶孔的小孔段。
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