Views: 3 Author: Site Editor Publish Time: 2020-04-24 Origin: Site
First consider the poor contact of the sliding contact line. When the electric hoist passes through the contact line interface, it often happens that the electric hoist suddenly stops. In severe cases, the motor will be burned due to the lack of phase. Due to factors such as the quality of the sliding wire and the on-site environment, the plastic shell of the sliding wire is fragile and deformed seriously during transportation and installation, which increases the difficulty of installing the sliding wire. The slip line and the slip line interface are prone to misalignment, resulting in poor contact and lack of phase or power failure when the current collector passes through the interface, and the electric hoist suddenly stops.
The second consideration is the current collector. The built-in spring supports the sliding carbon brush to contact the sliding wire. Environmental factors such as heavy rain in the coastal area and high air humidity, springs are easy to rust and fail, resulting in poor contact between the carbon brush and the sliding line. However, there is a chamfer in the position of the carbon brush contact. When the carbon brush enters the uneven slide line interface, the electric hoist has a small inertia, and the carbon brush contacts cannot successfully pass through the interface, resulting in a poor contact of the current collector.
Then consider the use of electric hoist. When the electric hoist hoisting equipment is not standardized, various crooked and inclined cranes appear. The electric hoist tilts due to the force and drives the current collector to deviate from the normal track, resulting in poor contact between the current collector and the slip wire and lack of phase or open circuit, causing the electric hoist Stop, when serious, often burn the motor due to lack of phase.
In order to eliminate the bad situation of the current collector and the sliding contact wire, we first strengthen the position of the sliding wire interface to ensure that the interface is flat as much as possible; secondly, replace the rusty spring of the current collector, and at the same time polish the carbon brush contact to make the contact more smooth. Eliminate the uneven gap caused by the sliding wire interface, and ensure that the contacts can effectively contact the sliding wire copper rail. The latter is to strengthen the technical explanation of the users of electric hoist and use the electric hoist correctly and standardized.