Ground follow-up type cable reel installation for mining dredger

Abstract

A ground master-slave Cable reel installation of a mining excavator relates to the auxiliary equipment of the mining excavator. The device comprises a cable reel and is characterized in that the cable reel is horizontally arranged on an under frame; the under frame is also equipped with a speed reducer, a high-voltage slip ring transmission box, a cable guide mechanism, a long locked-rotor motor and an electric control cabinet; wherein, power supply of the high-voltage slip ring transmission box is connected with the long locked-rotor motor which drives the speed reducer; a gear shaft of the speed reducer drives the cable reel; the high-voltage slip ring transmission box is connected with a cable of the electric control cabinet; the cable guide mechanism is arranged behind the cable reel; lugs are welded at four corners of the under frame. The device has the advantages of good automatic reeling effect of the cable, low construction cost, easy operation and good device stability, etc.

Description

technical field [0001] The invention relates to auxiliary equipment of a mining excavator, in particular to a retractable device for a tail cable of a mining excavator. Background technique [0002] The excavator cables used in open-pit mining enterprises are connected to the power supply. For decades, there are two types of cable retracting devices that have been used in general: vehicle-mounted and ground-following. The vehicle-mounted cable retracting device is installed at the tail of the excavator, and the hydraulic system controls the retracting and retracting of the cables, which can move flexibly with the excavator. The disadvantage is that the cables are often impacted or bumped when the excavator is moving or the stick is withdrawn, which is likely to cause electric leakage, which not only affects the service life of the cables, but also poses a safety hazard. Simultaneously, the vehicle-mounted cable retractable device has a complicated structure and high cost. ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the cables are often impacted or bumped when the excavator is moving or the stick is withdrawn, which is likely to cause leakage, which not only affects the service life of the cables, but also poses a safety hazard

At the same time, the vehicle-mounted cable retractable device has a complex structure and high cost

The ground follow-up cable trolley (also called electric sledge) is a cable retracting device installed behind the mining excavator, and the cable is retracted and retracted manually. Although the layout is convenient and the cost is low, the disadvantage is that manual coiling of the cable is time-consuming and laborious. The work efficiency is low. When the excavator turns and retreats, it is necessary to manually adjust the position of the cable bracket to make it follow. The operation is very inconvenient and unsafe

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