Power supply system of cable type electric excavator

Abstract

The invention belongs to the field of engineering machines, and particularly relates to a power supply system of a cable type electric excavator. The system comprises the excavator, a cable and a distribution box and further comprises a winding drum type rotating supporting part located on the ground and a vehicle-mounted type rotating supporting structure arranged on the excavator. Through independent or joint effect of two collecting rings, when the excavator works, the excavator and excavator whole motion line 360-degree barrier-free rotation can be kept at the same time, and continuous power supply is achieved; through up and down swing of a cable transverse rod, the length of a cable line is controllable, touch with the excavator can be avoided, meanwhile, twisting and wear of the cable line can be greatly reduced, potential safety hazards are completely eradicated, and loss cost is reduced.

Description

technical field [0001] The invention belongs to the field of engineering machinery, in particular to a power supply system for a cable-type electric excavator. Background technique [0002] Excavator is one of the important equipment in construction machinery, which is used in various construction, water conservancy, electric power and mining operations. At present, in some special operation occasions, there are strict requirements on the power and pollution of excavators. Therefore, cable excavators appear, which use municipal cables to introduce power distribution to ensure power, while avoiding various pollution of traditional diesel engines. Cable excavators generally have a supporting tower in the center of the working area, which is used to lead the cables to the top of the tower, and then lead the cables to the excavator from the top of the tower, so that the cables are powered from above the excavator, avoiding access from the bottom of the excavator Cables cause cr...

AI Technical Summary

Problems solved by technology

[0003] The following problems exist in the use of this cable excavator: 1. When the excavator is working close to the support tower, the cable is slack, and the drooping cable is easy to touch the excavator and cause an accident; 2. When the excavator moves in a 360-degree circle around the support tower , the cable will be twisted, and when the torsional strength of the cable is exceeded, the cable will be scrapped, and there will be blind spots for power supply and movement; 3. When the excavator itself needs 360 rotations, forward and backward, sideways movement, etc., the cables connected to the excavator motor will also If twisting occurs, there are also problems of power supply and motion blind spots; 4. Due to the high working intensity of the excavator, the complex and violent movements, and the harsh working environment, if the cable is twisted repeatedly, it is easy to wear, and there are potential safety hazards

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