Sealed spring box for connecting pantograph head of pantograph with pantograph connecting frame

Abstract

The invention relates to a sealed spring box for connecting a pantograph head of a pantograph with a pantograph connecting frame, and the composition is as follows: the upper part of a pantograph head coupling seat of the spring box is connected with a pantograph head carbon sliding plate through a bolt, the lower part is hinged with a U-shaped hinge support through a pin shaft, the lower part ofthe U-shaped hinge support is connected with the upper end of a piston rod through a screw, the piston rod is arranged in a piston barrel, the piston barrel is fixed on a support cylinder body through the screw, the middle part of the support cylinder body is fixed on a cylinder body mounting seat through the screw, the cylinder body mounting seat is further fixed and mounted on a pantograph headcross rod of the pantograph through the bolt, and the pantograph head cross rod is hinged with a upper arm rod of the pantograph connecting frame; and a spring is connected between the lower part of the piston rod and the bottom of the piston barrel. The device can realize self-adaption to fluctuations in hanging conducting wires of a contact net, enable the following performance between the pantograph and the net to be good, and effectively attenuate vibration caused by oscillation and impact between a vehicle body and the contact net; furthermore, the structure is compact, the weight is light, the windward is small, and the caused shaking and swing of a pantograph body are small. By adopting the sealed spring box, good current collection of a locomotive can be ensured, and the running is safe and smooth.

Description

A sealed spring box for connecting pantograph head and pantograph connecting frame technical field The invention relates to a connecting device between a pantograph head and a pantograph connecting frame of a high-speed electric locomotive. Background technique The electric locomotive obtains electric energy from the catenary through the pantograph installed on its roof to drive its operation. The electric receiving slide plate of the pantograph is in direct contact with the surface of the catenary wire under a certain pressure and slides relative to each other. When the locomotive is running at high speed, due to the vibration of the car body and the collision of the high and low fluctuations of the suspension wires of the catenary, the bow and the net are in the state of impact contact, shaking and vibration, so that the bow and the net may be in a state of intermittent connection, so that there is no It is beneficial for the locomotive to obtain electric energy smoothl...

AI Technical Summary

Problems solved by technology

After the speed of the locomotive exceeds 350 km / h, this kind of connection device, due to the large aerodynamic resistance of the suspension device, the bow body shakes and fluctuates greatly during high-speed movement, and because the damping of the tension spring suspension is small, it is not suitable for high-speed operation. The shock attenuation ability of the bow head body is poor, and the impact and tremor between the pantograph and catenary cannot be effectively weakened, so that the pantograph and catenary often go offline, causing sparks, which is not conducive to the stable flow of the locomotive, and is not conducive to the smooth operation of the locomotive at high speed

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