SU723176A1

SU723176A1 - Mine roof support top part

Info

Publication number: SU723176A1
Application number: SU782438330A
Authority: SU
Inventors: Кенес Омарович Атыгаев; Юрий Михайлович Хохлов; Борис Георгиевич Рогозов; Сергей Тусупович Жолдаспаев
Original assignee: Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт
Priority date: 1978-01-06
Filing date: 1978-01-06
Publication date: 1980-03-25

Description

1one

Изобретение относитс к подземной добыче угл и может быть использовано дл креплени бесстоечной зоны при- забойного пространства.The invention relates to the underground mining of coal and can be used to secure a bottomless zone of a downhole space.

Известен верхн к шахтной крепи, содержащий верхнее перекрытие с шарнир- но соединенным козырьком, распираемым с помощью гидродомкрата. Распорное устройство козырька находитс в районе шарнирного соединени его, причем перекрытие служит опорой дл этого устройства l.Known top to the mine roof liner, containing the upper overlap with a hinged-connected visor, bursting with a hydraulic jack. The visor spreader device is located in the region of its articulated joint, and the overlap serves as a support for this device l.

Такое расположение распорного устройства обуславливает создание больших нагрузок в самом устройстве и элементах его закреплени и не обеспечивает, заданных высоких распорных усилий между козырьком верхн ка и кровлей, что снижает безопасность условий труда в призабойном пространстве и приводит к увеличению металлоемкости и усложнению конструкции как самих распорных устройств, так и верхн ка в целом.Such an arrangement of the spacer device causes the creation of large loads in the device itself and its fastening elements and does not provide the specified high spacer forces between the top roof and the roof, which reduces the safety of working conditions in the wellbore space and leads to an increase in metal intensity and design complexity as spacers themselves. , and the top as a whole.

Наиболее близким к предлагаемому . по технической сущности и достигаемому, результату вл етс верхн к шахтной крепи, включающий основную балку, расположенную в ней выдвижную консоль с фиксатором и опорной забойной плитой, прикрепленной к консоли осью, и сило- вое устройство 2-J,Closest to the proposed. technically and achievable, the result is top to the shaft lining, including the main beam, a retractable console located in it with a lock and a bottomhole support plate attached to the console by an axis, and a power device 2-J,

В известной конструкции не обеспечиваетс эффективное крепление призабойноро пространства очистного забо , так как опорна забойна плита не может передвигатьс независимо от выдвижной консоли.In the known construction, it is not possible to effectively fix the bottom-hole of the cleaning face, since the support bottom plate cannot move independently of the extendable console.

Цель изобретени - повышение эффективности креплени призабойиого пространства очистного забо путем независимого от выдвижной консоли перемещени опорной забойной плиты,The purpose of the invention is to increase the efficiency of fixing the bottom-hole of the clearing face by moving the basement plate independent of the sliding console,

Claims

The goal is achieved by the fact that the power device is extended in the form of a hydraulic cylinder, pa3MeuiGinioro can be a movable console and a supporting.-Slab plate having guide grooves in which the axis is placed. In FIG. 1, shown top to shaft support, general view; Fig. 2 is a section A.A. Fig. 1. Verkn to the shaft support includes a main beam 1, a sliding console 2, clamps 3, a bottomhole support plate 4 with eyelets 5 having guide grooves 6 located at the downhole end of the sliding console a power device 7 (made, for example, in the form of a hydraulic cylinder), the piston cavity of which is connected to the loading and unloading device 8 and an axis 9 connecting the sliding console 2 with the bottom hole plate 4 and the hydraulic cylinder of the power device 7. The hydraulic cylinder is placed between retractable console and supports downhole slab. Top to shaft support works as follows. Following the passage of the combine to the side of the well, the extension console is extended. 2 and is secured by retainer 3 in position when the downhole support plate 4 touches the roof. The deviation of the support behind the slab 4 with respect to the extendable console 2 is compensated by the axis 9 moving in the guide grooves 6 Through the loading and unloading device 8 into the helical cavity of the hydraulic cylinder the working fluid is supplied and the supporting bottom hole support 4 is supported to the roof. The downhole plate 4 with respect to the extendable console 2 is provided with guide slots 6. The control of the hydraulic cylinder produces 64 with a loading and unloading device 8, using the top of the mine shaft pi is possible both in the powered roof supports x, and in the individual crepe's and will enhance the safety of works on mounting face opening stopes by increasing the force of the spacer on the face end of the cantilever upper Cove. Claims of the invention E ehrn to the shoring, comprising a main beam, a pull-out console with a lock and a bottomhole support plate attached to the console with an axle, and a power device, characterized in that, in order to increase the efficiency of fixing the bottomhole clearing face, by independent from the retractable console, the movement of the downhole support plate, the power device is made in the form of a hydraulic cylinder, placed between the retractable console and the downhole support plate, having guide grooves, in which posted axis. Sources of information taken into account in the examination 1. Khorii V.I. et al. Hydroficated support of cleanings. M., Nedra, 1973, p. 145-147.

2. USSR author's certificate number 341954, cl. E 21D 23/06, 1971 (prototype).