SU872772A1

SU872772A1 - Mine roof support cap

Info

Publication number: SU872772A1
Application number: SU792855249A
Authority: SU
Inventors: Кенес Омарович Атыгаев; Борис Георгиевич Рогозов; Людмила Ивановна Костливцева; Венер Сергеевич Петров; Николай Андреевич Рудометкин; Виктор Зиновьевич Старченко; Михаил Гаврилович Ведяпин
Original assignee: Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт (Книуи)
Priority date: 1979-12-20
Filing date: 1979-12-20
Publication date: 1981-10-15

Description

(54) ПЕРЕКРЫТИЕ ШАХТНОЙ КРЕПИ(54) OVERLAP OF SHAFT

II

Йзобретенне относитс к подземной добь14е угл и может быть использовано дл креплени бесстоечной зоны призабойного пространства.The invention relates to a subterranean coal and can be used to secure a bottom-free zone.

Известен раздвижной верхн к крепи очистных забоев, включающий основную балку, установленную в ней выдвижную консоль и клиновой замок, жестко закрепленный на забойном конце основной балки 1.Known sliding top to lining cleansing faces, including the main beam, installed in her retractable console and wedge lock rigidly mounted on the downhole end of the main beam 1.

Недостатками данного верхн ка вл ютс необходимость увеличени габаритов поперечного сеченн основной балки и длины консоли, невозможность использовани конструкции при повышенной волнистости кровли и низкое усилие распора выдвижной консоли.The disadvantages of this top are the need to increase the dimensions of the cross section of the main beam and the length of the cantilever, the inability to use the structure with increased waviness of the roof and the low expansion force of the extendable cantilever.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс перекрытие шахтной крепи, включающее основной и выдвижной верхн кн, соединенные посредством опоры, вьшолненной с основанием и ребрами жесткости и закрепленной подвижно на основном верхн ке, и распорное устройство 2.The closest to the invention to the technical essence and the achieved result is the overlap of the shaft lining, including the main and retractable upper kn, connected by means of support, extended with the base and stiffeners and fixed movably on the main top, and the spacer 2.

Недостатками да1шого перекрыти крепи вл ютс низкое распорное усилие выдвижногоThe disadvantages of the overlap of the lining are the low spreading force of the retractable

верхн ка и неудовлетворительна приспосабливаемость конструкции к неровност м кровли.top and unsatisfactory adaptability of the structure to the unevenness of the roof.

Цель изобретени - повышение распорного усили выдвижного верхн ка и приспосабли- . ваемости устройства к гипсометрии кровли.The purpose of the invention is to increase the expansion force of the sliding top and the adjustment -. The possibility of the device to the roof gypsometry.

Указанна цель достигаетс тем, что выдвижной верхн к установлен с возможностью перемещени относительно опоры, основание опоры выполнено по длине овальным, и распорное устройство установлено на завальном конце This goal is achieved by the fact that the sliding top is mounted with the possibility of movement relative to the support, the base of the support is made oval in length, and the spacer is installed at the zavalnye end

10 выдвижного верхн ка со стороны кровли.10 sliding top on the side of the roof.

На фиг. 1 показана установка перекрыти крепи в лаве при выполнении распорного устройства в виде силового гидроцилиндра, вид сбоку; на фиг. 2 - разрез А-А на фиг. 1; FIG. 1 shows the installation of the overlap of lining in the lava when performing the spacer device in the form of a power hydraulic cylinder, side view; in fig. 2 shows section A-A in FIG. one;

15 на фиг. 3 - установка перекрыти крепи в лаве (при выполнении распорного устройства в виде клина), вид сбоку; на фиг. 4 - разрез Б-Б на фиг. 3.15 in FIG. 3 - installation of the ceiling lining in the lava (when the spacer is made in the form of a wedge), side view; in fig. 4 shows a section BB in FIG. 3

Claims

The overlap of the lining includes the main top 20 to 1, support 2, Mobile) mounted on the lower face of the main top, and retractable top to 3 with a spacer 4 mounted on its end facing the dam from the roof side; The support 2 consists of stiffening ribs 5 and a base 6, which is oval in length. The support is freely mounted on the lower face of the main top in a position corresponding to the grip of the excavation machine and the length of the sliding top. The front end of the extendable top 3 is outlined with a bevel for better fit to the top of the coal seam. The spacing device 4 can be made in the form of a hydraulic cartridge, on the plunger of which the pump 7 is hinged. In the lavas not equipped with pumping stations, a longitudinal wedge 8 can be used as a spacer device, which is attached to the sliding top 3 by the chain 9. the sliding top in this case is performed with a bevel corresponding to the corner of the wedge. The wedge 8 is fitted with guide ribs 10, which serve to reach the rear of the sliding top and direct its mixing. To knock out the wedge when unloading the sliding top, a stop 11 serves. The overlap is installed in the following way. Following the passage of the excavation mask, the support 2 is installed on the lower face of the main top. The base of the support from the fixed space on the rack side is the front end of the sliding top, which rises to the roof and moves along the support to the required length to the bottom of the chest. Then, the sliding top of the hydropatron is spread by feeding and its working cavity with a liquid under the pressure of the expansion valve or with a longitudinal wedge depending on the design of the spacer. After moving the conveyor, a new row of lining racks with the main tops is erected. During the subsequent next excavation of the carbon strip, the sliding top is unloaded and removed from the support, which is then transferred to the main top to the new bottom-hole row of supports. Slide-out installation operations are repeated. The proposed overlapping of roof supports is characterized by a lower metal content and greater adaptability to the unevenness of the roof. Claims for mine roof support, including main and sliding upper, joining 1e by means of a support made with the base to stiffeners and fixed movably on the main upper, and a spacer device, which is designed so that with the aim of expanding the spacer force of the sliding upper device and adaptability of the device to the roof gypsometry, retractable top to is mounted for movement relative to the support, the base of the support is oval in length, and the spacer is installed on the ground Nominal end of the sliding top on the roof side. Sources of information taken into account during the examination 1./ USSR author's certificate No. 599086, cl. E 21 D 23/00, 1976.

2. Authors certificate of the USSR N 479872, cl. E 21 D 17/02, 1972 (prototype).