Rotary current collector

Abstract

The invention provides a rotary current collector which is divided into a fixed part and a rotary part; the shell is mounted on the cross bar under a rotary bearing through the base and the rotary part is connected with the support rod mounted on the rotary bearing through a support rod. Driven by a rotary mechanism, the support rods rotate together and therefore, prevent the cables from being twisted and damaged. The current collector has a simple structure, is easy to install, has a long service life, and does not need repair. A radial friction-type current collector, after use, realizes the pressure adjustment by the reliance on manual adjustment of the clamp loop and an axial friction type current collector does not require any adjustment; and the damage amount of the friction sheets can be automatically compensated through the elastic force of a pressure spring; and the working principle is similar to a German touch line.

Description

technical field [0001] For a long time, the power supply lines of tower cranes have used the number of turns of the slewing limiter to prevent the cables from being sprained, but in actual operation it has brought a lot of inconvenience and conflicts between operators and workers, so generally new tower cranes are installed on the construction site. were forced to remove the stoppers. It also brings inconvenience to the operator after dismantling. Especially for complex building structures and multi-machine operations, the cables cannot be guaranteed to be twisted. Background technique [0002] Some manufacturers have installed trolley lines for power supply, but the installation and maintenance costs are very high, and it is extremely inconvenient for operators to go up and down, so they were forced to cancel it. [0003] Based on the above situation, current collectors with sliding friction structure are designed, one is radial friction type and the other is axial fricti...

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