You need JavaScript to view this

A device for selecting the slack in underground cable for dragline excavators

Abstract

The patented device includes a controllable converter for the lift drive, a command apparatus, a lift drive tension regulator, a sensor of force in the lift cables and the product of this force, the speeds of the drives of the lift and the link, a force assigner and a force regulator in the lift cables and keying elements. To reduce the dynamic loads in the elastic elements of the lift mechanism and the arm, the device is equipped with a regulator for the random force in the lift cable, a sensor of the random speed of the lift drive, six keying elements with a resistor, shunted by a first keying element and switched in to the input of the second keying element and to the output of the regulator of the random force in the lift cables, to the input of which the sensor of the force in the lift cables is switched in through the sensor of the product of this force and the output of the force regulator, to the inputs of which the outputs of the command apparatus are switched in through the parallelly switched third and fourth keying elements and the output of the force sensor  More>>
Publication Date:
Jan 01, 1982
Product Type:
Patent
Report Number:
SU 2999211/29-0329-03
Reference Number:
EDB-84-168900
Resource Relation:
Patent File Date: Filed date 29 Oct 1980; Other Information: PAT-APPL-939,674
Subject:
42 ENGINEERING; DRAGLINES; CABLES; SURFACE MINING; DESIGN; DYNAMIC LOADS; SERVOMECHANISMS; CONTROL EQUIPMENT; EARTHMOVING EQUIPMENT; EQUIPMENT; MATERIALS HANDLING EQUIPMENT; MINING; 420206* - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
OSTI ID:
6560173
Country of Origin:
USSR
Language:
Russian
Availability:
Plenum Publishing Corp., New York, NY.
Submitting Site:
HEDB
Size:
Pages: v
Announcement Date:
Aug 01, 1984

Citation Formats

Vul, Yu Ya, Koshkarev, A V, Mamkin, V M, Maslov, I G, Sapilov, A V, Simonov, Yu V, and Ushakov, L I. A device for selecting the slack in underground cable for dragline excavators. USSR: N. p., 1982. Web.
Vul, Yu Ya, Koshkarev, A V, Mamkin, V M, Maslov, I G, Sapilov, A V, Simonov, Yu V, & Ushakov, L I. A device for selecting the slack in underground cable for dragline excavators. USSR.
Vul, Yu Ya, Koshkarev, A V, Mamkin, V M, Maslov, I G, Sapilov, A V, Simonov, Yu V, and Ushakov, L I. 1982. "A device for selecting the slack in underground cable for dragline excavators." USSR.
@misc{etde_6560173,
title = {A device for selecting the slack in underground cable for dragline excavators}
author = {Vul, Yu Ya, Koshkarev, A V, Mamkin, V M, Maslov, I G, Sapilov, A V, Simonov, Yu V, and Ushakov, L I}
abstractNote = {The patented device includes a controllable converter for the lift drive, a command apparatus, a lift drive tension regulator, a sensor of force in the lift cables and the product of this force, the speeds of the drives of the lift and the link, a force assigner and a force regulator in the lift cables and keying elements. To reduce the dynamic loads in the elastic elements of the lift mechanism and the arm, the device is equipped with a regulator for the random force in the lift cable, a sensor of the random speed of the lift drive, six keying elements with a resistor, shunted by a first keying element and switched in to the input of the second keying element and to the output of the regulator of the random force in the lift cables, to the input of which the sensor of the force in the lift cables is switched in through the sensor of the product of this force and the output of the force regulator, to the inputs of which the outputs of the command apparatus are switched in through the parallelly switched third and fourth keying elements and the output of the force sensor directly.}
place = {USSR}
year = {1982}
month = {Jan}
}