CN110783723A - 一种用于10kV线路变压器的自适应铜铝过渡线夹装置 - Google Patents
一种用于10kV线路变压器的自适应铜铝过渡线夹装置 Download PDFInfo
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Abstract
本发明公开了一种用于10kV线路变压器的自适应铜铝过渡线夹装置,它包括槽块和楔块,所述槽块为方形结构,在槽块的中间设有圆柱形线孔一,在线孔一的侧边有连通的U形槽孔,楔块为方形结构,楔块中间有通孔且通孔内垫有筒垫,筒垫的中间有线孔二,在楔块的侧壁上固定连接有卡座,卡座上设有方孔,卡座伸入U形槽孔内通过螺栓与槽块连接,螺栓位于方孔内。该线夹设计能适应任何配电变压器桩头,且当线夹过流发热时,由于铜和铝的热膨胀系数不一致,铜与铝过渡处会接触更加紧密,减少接触电阻,使线夹不易发生断裂,取得了很好使用的效果。
Description
技术领域
本发明涉及一种变压器线夹,尤其涉及一种用于10kV线路变压器的自适应铜铝过渡线夹装置,属于输电线路设备技术领域。
背景技术
目前10kV线路变压器低压桩头采用设备线夹铜铝过渡,由于铜和铝的热膨胀系数不一致,所以导致线夹过流发热时,铜铝过渡处容易发生断裂、烧化等现象,将导致缺相,从而引起相应地区大面积停电,造成不必要的损失。
发明内容
本发明要解决的技术问题是:提供一种用于10kV线路变压器的自适应铜铝过渡线夹装置,该线夹设计能适应任何配电变压器桩头,且当线夹过流发热时,由于铜和铝的热膨胀系数不一致,铜与铝过渡处会接触更加紧密,减少接触电阻,使线夹不易发生断裂,有效的解决了上述存在的问题。
本发明的技术方案为:一种用于10kV线路变压器的自适应铜铝过渡线夹装置,它包括槽块和楔块,所述槽块为方形结构,在槽块的中间设有圆柱形线孔一,在线孔一的侧边有连通的U形槽孔,楔块为方形结构,楔块中间有通孔且通孔内垫有筒垫,筒垫的中间有线孔二,在楔块的侧壁上固定连接有卡座,卡座上设有方孔,卡座伸入U形槽孔内通过螺栓与槽块连接,螺栓位于方孔内。
所述槽块的侧壁上设有螺孔,螺孔内有锁紧螺钉一,卡座通过锁紧螺钉一在U形槽孔内进行锁紧。
所述楔块的侧壁上设有锁紧螺钉二,所述锁紧螺钉二穿过筒垫伸入线孔二内对导线进行锁紧。
所述卡座与线孔一的相对面为弧形面,弧形面上设有螺纹,与弧形面相对的卡座侧壁上设有凹槽,锁紧螺钉一的端部位于凹槽内进行卡紧。
所述筒垫和锁紧螺钉二的材料为铝,其余材料均为铜。
本发明的有益效果是:与现有技术相比,采用本发明的技术方案,该线夹设计能适应任何配电变压器桩头,且当线夹过流发热时,由于铜和铝的热膨胀系数不一致,铜与铝过渡处会接触更加紧密,减少接触电阻,使线夹不易发生断裂,该线夹槽块和楔块契合时,由槽块侧面铜螺栓固定,由槽块下底面铜螺钉推进,使U形槽孔内的变压器桩头能契合牢固,楔块上部由两铝螺钉固定穿过通孔的铝导线。铝导线位于铝材的筒垫内,发热时由于铝的热膨胀系数要比铜大,所以筒垫会胀大更进一步的卡紧在楔块内,而不会产生断裂、烧化等现象了,取得了很好的使用效果。
附图说明
图1为本发明结构示意图;
图2为本发明的A向视图;
图3为本发明槽块结构示意图;
图4为本发明楔块结构示意图;
图5为本发明槽块B向视图;
图6为本发明楔块C向视图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将参照本说明书附图对本发明作进一步的详细描述。
实施例1:如附图1~6所示,一种用于10kV线路变压器的自适应铜铝过渡线夹装置,它包括槽块2和楔块4,所述槽块2为方形结构,在槽块2的中间设有圆柱形线孔一1,在线孔一1的侧边有连通的U形槽孔9,楔块4为方形结构,楔块4中间有通孔且通孔内垫有筒垫6,筒垫6的中间有线孔二11,在楔块4的侧壁上固定连接有卡座10,卡座10上设有方孔12,卡座10伸入U形槽孔9内通过螺栓3与槽块2连接,螺栓3位于方孔12内。
进一步的,槽块2的侧壁上设有螺孔8,螺孔8内有锁紧螺钉一7,卡座10通过锁紧螺钉一7)在U形槽孔9内进行锁紧。
进一步的,楔块4的侧壁上设有锁紧螺钉二5,所述锁紧螺钉二5穿过筒垫6伸入线孔二11内对导线进行锁紧。
进一步的,卡座10与线孔一1的相对面为弧形面13,弧形面13上设有螺纹,与弧形面13相对的卡座10侧壁上设有凹槽14,锁紧螺钉一7的端部位于凹槽14内进行卡紧。变压器桩头通过弧形面13上的螺纹与卡座10相互配合,再用锁紧螺钉一7进行锁紧,保证了连接可靠。
进一步的,筒垫6和锁紧螺钉二5的材料为铝,其余材料均为铜。
该线夹设计能适应任何配电变压器桩头,且当线夹过流发热时,由于铜和铝的热膨胀系数不一致,铜与铝过渡处会接触更加紧密,减少接触电阻,使线夹不易发生断裂,该线夹槽块和楔块契合时,由槽块侧面铜螺栓固定,由槽块下底面铜螺钉推进,使U形槽孔内的变压器桩头能契合牢固,楔块上部由两铝螺钉固定穿过通孔的铝导线。铝导线位于铝材的筒垫内,发热时由于铝的热膨胀系数要比铜大,所以筒垫会胀大更进一步的卡紧在楔块内,而不会产生断裂、烧化等现象了,取得了很好的使用效果。
本发明未详述之处,均为本技术领域技术人员的公知技术。最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。
Claims (5)
1.一种用于10kV线路变压器的自适应铜铝过渡线夹装置,其特征在于:它包括槽块(2)和楔块(4),所述槽块(2)为方形结构,在槽块(2)的中间设有圆柱形线孔一(1),在线孔一(1)的侧边有连通的U形槽孔(9),楔块(4)为方形结构,楔块(4)中间有通孔且通孔内垫有筒垫(6),筒垫(6)的中间有线孔二(11),在楔块(4)的侧壁上固定连接有卡座(10),卡座(10)上设有方孔(12),卡座(10)伸入U形槽孔(9)内通过螺栓(3)与槽块(2)连接,螺栓(3)位于方孔(12)内。
2.根据权利要求1所述的用于10kV线路变压器的自适应铜铝过渡线夹装置,其特征在于:所述槽块(2)的侧壁上设有螺孔(8),螺孔(8)内有锁紧螺钉一(7),卡座(10)通过锁紧螺钉一(7)在U形槽孔(9)内进行锁紧。
3.根据权利要求1所述的用于10kV线路变压器的自适应铜铝过渡线夹装置,其特征在于:所述楔块(4)的侧壁上设有锁紧螺钉二(5),所述锁紧螺钉二(5)穿过筒垫(6)伸入线孔二(11)内对导线进行锁紧。
4.根据权利要求1所述的用于10kV线路变压器的自适应铜铝过渡线夹装置,其特征在于:所述卡座(10)与线孔一(1)的相对面为弧形面(13),弧形面(13)上设有螺纹,与弧形面(13)相对的卡座(10)侧壁上设有凹槽(14),锁紧螺钉一(7)的端部位于凹槽(14)内进行卡紧。
5.根据权利要求1所述的用于10kV线路变压器的自适应铜铝过渡线夹装置,其特征在于:所述筒垫(6)和锁紧螺钉二(5)的材料为铝。
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