Forged integrated strain clamp applied to aluminum alloy stranded conductor
A tension clamp, aluminum alloy technology, applied in the direction of adjusting/maintaining mechanical tension, etc., can solve the problem of increasing the amount of wires and busbars used, the structure size of the tower and the width of the line corridor, increasing the number of split wires, and increasing project investment, etc. problems, to ensure the anti-fatigue performance and electrical performance, improve the control ability, and ensure the effect of normal operation
Inactive Publication Date: 2015-02-04
STATE GRID CORP OF CHINA +2
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- Description
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Problems solved by technology
If the design uses ordinary wires, it is necessary to increase the cross section of the wires and the number of split wires, which will inevitably increase the use of wires and busbars, the structural size of the iron tower and the width of the line corridor, etc., thereby increasing the project investment.
Method used
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Embodiment 1
[0043] The strain clamp is made of forged aluminum alloy, and the inner wall at the nozzle of the connecting pipe 2 is provided with a single helical fixing piece 3 with a tapered cross-section along its axis, and the apex angle of the tapered cross-section is 30° , a puller 4 is set outside the nozzle of the connecting pipe 2. Put the ring of the diversion plate 6 on the connecting pipe 2 and weld it together, insert the aluminum alloy stranded conductor 5 into the connecting pipe 2 and press it into one body through hydraulic pressure, the top angle of the fixing part 3 and the aluminum alloy stranded wire The wire 5 is tightly occluded, so that the cavity after the tension clamp and the wire are crimped is fully sealed, and finally the double connecting plate of the drainage clamp 7 after the crimping of the drainage line 9 is inserted into the groove of the drainage plate 6 and fastened with bolts 8 .
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The invention provides a forged integrated strain clamp applied to an aluminum alloy stranded conductor. The strain clamp is arranged at the end of an overhead transmission line and used for anchoring a conductor as well as maintaining the electrical and mechanical performances. The device is characterized in that the strain clamp comprises a pulling ring, a connecting tube and a flow guide clamp; the connecting tube and the pulling ring are axially integrally formed; a fixing part and a drawing pin are respectively arranged on the inner wall and the outer wall of one end of the connecting tube. Compared with the prior art, the forged integrated strain clamp applied to aluminum alloy stranded conductor has the advantages that the intensity of the strain clamp is improved; in addition, the holding capacity of the strain clamp to the conductor is improved; meanwhile, the sealing performance of a cavity formed by the strain clamp and the conductor after pressure welding is improved; the matured pressure welding process is adopted, so that the pressure welding quality can be ensured well.
Description
technical field [0001] The invention relates to a tension clamp, in particular to a forged integral tension clamp for aluminum alloy stranded conductors. Background technique [0002] The tension clamp is used to fix the conductor or lightning conductor on the tension insulator string of the non-linear tower, and it acts as an anchor. It is also used to fix the guy wire of the guy tower. It is an important fitting in the transmission line. [0003] The UHV project aims to build an "environmentally friendly" project, comprehensively optimizes the design of the project, and strictly ensures that the electric field, magnetic field, audible noise and radio interference levels meet the standard requirements. If the design uses ordinary wires, it is necessary to increase the cross section of the wires and the number of split wires, which will inevitably increase the use of wires and busbars, the structural size of the iron tower and the width of the line corridor, thereby increasi...
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IPC IPC(8): H02G7/02
CPCH02G7/02
Inventor 刘臻于鑫朱宽军刘明慧万建成李君明刘胜春韩利鹏张军刘彬司佳钧牛海军展雪萍刘操兰杨加伦齐翼李军辉李新民冯亮李震孙娜孙宝东
Owner STATE GRID CORP OF CHINA
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