Power transmission line tension tower anti-vibration damper and installation structure thereof
A shock-absorbing damping and transmission line technology, applied in the direction of mechanical vibration attenuation devices, adjusting/maintaining mechanical tension, etc., can solve problems such as changing the dynamic characteristics of transmission towers, and achieve good energy dissipation and shock absorption, simple structure, and strong applicability Effect
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Embodiment 1
[0034]A shock-absorbing damper for a tension tower of a power transmission line, comprising an outer cylinder 9, characterized in that a number of wedge-shaped metal outer rings 7 and wedge-shaped metal inner rings 8 that match each other are arranged in the outer cylinder 9 along the axis direction, and the wedge-shaped metal inner rings 8 The metal inner ring 8 is located inside the wedge-shaped metal outer ring 7, and there is a gap between two adjacent wedge-shaped metal outer rings 7 or / and the wedge-shaped metal inner ring 8, and a stopper 15 is distributed along the axial direction in the outer cylinder 9 . Pressing and holding mechanism, the stopper 15 is used to block the wedge-shaped metal outer ring 7 and the wedge-shaped metal inner ring 8, and the described holding mechanism is used to apply the wedge-shaped metal outer ring 7 and the wedge-shaped metal inner ring 8 along the outer cylinder 9. force in the axial direction.
[0035] The present invention considers ...
Embodiment 2
[0037] A shock-absorbing damper for a tension tower of a power transmission line. On the basis of Embodiment 1, the holding mechanism includes a main shaft 16 with one end inserted into the outer cylinder 9, and an extrusion wedge 11 is sleeved on the main shaft 16. The extrusion wedge 11 is adjacent to the wedge-shaped metal outer ring 7 and the wedge-shaped metal inner ring 8, and the side of the extrusion wedge 11 away from the wedge-shaped metal outer ring 7 and the wedge-shaped metal inner ring 8 is provided with a stopper 14, The main shaft 16 passes through the block 2 14 , and the main shaft 16 is also sleeved with a fastener 12 , and the fastener 12 presses the extruding wedge 11 . A matched sliding wedge 13 is provided outside the extrusion wedge 11 , and the sliding wedge 13 is engaged with the extrusion wedge 11 . It also includes a spring 10 sheathed on the main shaft 16 , and the spring 10 is located between the first block 15 and the second block 14 . The end o...
Embodiment 3
[0041] An installation structure for a shock-absorbing damper of a tension tower of a power transmission line, comprising a tension tower 1, a cross-arm 2 of the tension tower is arranged on the tension tower 1, and two ends of the shock-absorbing damper 6 are connected to the cross-arm of the tension tower respectively. Bear 2 ends, insulator string 3 connections. The wire 5 and the ground wire 4 are stretched between adjacent transmission towers through insulator strings 3 . The two ends of the shock-absorbing damper 6 are respectively hinged to the ends of the cross-arm 2 of the tension tower and the insulator string 3 through spherical joints.
[0042] Under the earthquake, the tension tower 1 and its cross arm will be displaced, and then the wire 5 and the ground wire 4 will be stretched, and the adjacent tension tower 1 connected to it will generate an impact load; and the impact load will be reduced through the installation. After the damper 6 is shaken, the damper 6 i...
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