A floating shock absorber with stiffness

Abstract

The invention discloses a floating shock absorber with stiffness, which comprises a stiffness device and two stabilizing devices. The stiffness device includes a connecting rod which is arranged horizontally. The two stabilizing devices correspond to the two ends of the connecting rod one by one. The stabilizing device Installed at the end of the corresponding connecting rod, the stabilizing device includes an upper mounting plate, a lower mounting plate and at least two damping devices. The advantage of adopting the present invention is that the natural vibration frequency of the damper is adjusted through the stiffness device, so that the movement of the mass unit and the controlled structure produces a displacement and speed difference, so that the nonlinear energy consumption is performed through the damping device. Constraint, prevent wires from attracting and colliding with each other, eliminate and reduce the vibration of the wire harness, and prevent the wire harness from dancing up and down. Then two stabilizing devices are used to increase the torsional stiffness of the split transmission line, while controlling the vertical movement, the torsional movement of the wire is also consumed energy, which protects the safety of the transmission line to a greater extent.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a floating shock absorber with stiffness. Background technique [0002] In the overhead EHV transmission, compared with the single guide, the split guide can reduce the inductance of the transmission line and increase the capacitance, so that the wave impedance to the alternating current can be reduced, and the power transmission capacity of the line can be improved. In order to ensure the split wire harness The spacing remains unchanged to meet the electrical performance, reduce the surface potential gradient, and in the case of a short circuit, the electromagnetic force will not be generated between the guide wires, causing mutual attraction and collision, or even if it causes an instantaneous attraction collision, it can return to normal after the accident is eliminated. , it is necessary to install spacer rods and pendulums at a certain distance in the span. Installing spacer rods can elim...

AI Technical Summary

Problems solved by technology

[0002] In the overhead EHV transmission, compared with the single guide, the split guide can reduce the inductance of the transmission line and increase the capacitance, so that the wave impedance to the alternating current can be reduced, and the power transmission capacity of the line can be improved. In order to ensure the split wire harness Keep the spacing constant to meet the electrical performance, reduce the surface potential gradient, and in the case of a short circuit, the electromagnetic force will not be generated between the guide wires, causing mutual attraction and collision, or even if it causes an instantaneous attraction collision, it can return to the normal state after the accident is eliminated. , it is necessary to install spacer rods and pendulums at a certain distance in the span. Installing spacer rods can eliminate and reduce the vibration of the wire harness and prevent the wire harness from galloping up and down. Because the galloping of the split wires is often accompanied by torsional motion, and the torsional motion is very important for the galloping excitation. It is very important, but if only spacers are installed, the ability to suppress the overhead wires in the horizontal and torsional direction and other galloping directions is poor. While the pendulum is in the process of swinging, although the larger galloping of the wires is suppressed, the amplitude is larger. , poor damping effect

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