SU898513A1

SU898513A1 - Device for protecting flexible cable

Info

Publication number: SU898513A1
Application number: SU711729390A
Authority: SU
Inventors: Виталий Яковлевич Крикунов; Воля Павловна Иванова; Афанасий Григорьевич Ихно
Original assignee: Ворошиловградский филиал Института "Гипроуглеавтоматизация"
Priority date: 1971-12-27
Filing date: 1971-12-27
Publication date: 1982-01-15

Description

(54) УСТРОЙСТВО ДЛЯ ЗАЩИТЫ ГИБКОГО КАБЕЛЯ(54) DEVICE FOR PROTECTION OF FLEXIBLE CABLE

1one

Изобретение относитс к устройствам защиты гибкого кабел , наход щегос под напр жением , во взрывоопасной среде.This invention relates to flexible cable protection devices under stress in an explosive environment.

Известны устройства защиты кабел , наход щегос под напр жением, во взрывоопасной среде, которые основаны на принципе непрерьтного контрол электрической прочности изол ции или контрол тока утечки 1.Cable protection devices, which are under voltage, in an explosive environment are known, which are based on the principle of uninterrupted control of dielectric strength or leakage current control 1.

Однако эти устройства регистрируют только аварийное состо ние изол ции или тока утечки, но не производ т опережающего отключени в ситуаци х, предшествующих аварии .However, these devices register only the emergency state of the insulation or leakage current, but do not make an early shutdown in situations that precede the accident.

Наиболее близким к предлагаемому вл етс устройство дл защиты гибкого кабел , соедин ющего подвижные объекты, содержащее гибкий механический экран, установленные на каждом из объектов стойки, с которыми жестко соединены концы указанного экрана, поворотный элемент, соединенный с одной стороны с гибким кабелем, а с другой - с выключателем 2.Closest to the present invention is a device for protecting a flexible cable connecting movable objects, comprising a flexible mechanical shield, racks mounted on each of the objects, with which the ends of said shield are rigidly connected, a rotating element connected on one side with a flexible cable, and the other with switch 2.

Однако указанное устройство также не обеспечивает надежной работы в услови х взрывоопасной среды.However, this device also does not provide reliable operation in an explosive atmosphere.

Целью изобретени вл етс повышение эксплуатационной надежности во взрывоопасной среде.The aim of the invention is to improve the operational reliability in an explosive environment.

Поставленна цель достигаетс тем, что кабель расположен внутри экрана и поворотный элемент выполнен в виде полусферы, обеспечивающей отключение напр жени с ка10 бел при механических воздействи х во всех направлени х.The goal is achieved by the fact that the cable is located inside the screen and the pivoting element is designed in the form of a hemisphere, which ensures the disconnection of voltage from the cable with mechanical influences in all directions.

Claims

The device consists of a flexible cable 1, a mechanical shield 2, a consumer of electrical energy 3, a power source 4, a flexible connection (hitch) 5, pillars 6, a hemispherical support 7, a rod 8, a spring 9, an explosion-proof casing 10, a button 11, a switch 12. When certain mechanical forces P are applied (regardless of their direction) on the mechanical screen 2, the pillar 6 rotates, the latter with its hemispherical support 7, pressed by the spring 9, displaces the rod 8, which acts on the 3 contact of the button 11, included in control circuit you lyuchatel. Thus, this device ensures the early shutdown of the power source and prevents the occurrence of an accident, ensuring operational reliability in an explosive environment. Formula of the Invention A device for protection of a flexible cable connecting movable objects, containing a flexible mechanical shield, mounted on each of the objects of a rack, to which the ends of said shield are rigidly connected, a rotating element connected to the flexible cable on the one hand and , characterized in that, in order to increase operational reliability in an explosive environment, the cable is located inside the shield and the pivoting element is designed in the form of a hemisphere, providing voltage disconnection with the cable under mechanical effect of x in different directions. Sources of information taken into account in the examination 1. Svetlichny P. L. Electric drive and power supply of mining machines. 1968, p. five.

2. Lake M. I. Underground electrical equipment of coal mines. ONTI, 1937, p. 479-481.