SU662723A1

SU662723A1 - Transition powered roof support

Info

Publication number: SU662723A1
Application number: SU772464369A
Authority: SU
Inventors: Анатолий Сергеевич Слепцов; Александр Васильевич Акулин; Геннадий Николаевич Грачев; Владимир Михайлович Орлов; Александр Михайлович Плотников
Original assignee: Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения
Priority date: 1977-03-14
Filing date: 1977-03-14
Publication date: 1979-05-15

Description

(54) МЕХАНИЗИРОВАННАЯ КРЕПЬ СОПРЯЖЕНИЯ(54) MECHANIZED STRESS STRIPPING

Изобретение относитс к подземной добыче угл , а именно к механизированному креплению сопр жени лавы со штреком.The invention relates to the underground mining of coal, namely to the mechanized fastening of the interface of lava with a drift.

Известна крепь сопр жени , состо ща из наружной и внутренней секций, к опорам внутренней секции шарнирно прикреплены поддерживающие балки, опоры наружной секции объединены в одно целое при помощи передней и задней балок, кроме того, наружна секци соединена с опорой привода забойного конвейера 1.Known support mating, consisting of the outer and inner sections, supporting beams are pivotally attached to the inner section supports, the outer section supports are integrated into one with the front and rear beams, and the outer section is also connected to the support of the drive of the bottomhole conveyor 1.

Однако эта крепь не обладает поперечной устойчивостью, несмотр на специальный узел, выполненный у перекрыти крепи.. Эта крепь также металлоемка.However, this lining does not have lateral stability, despite a special assembly, made at the ceiling lining. This lining is also metal consuming.

Наиболее близким техническим решением к предлагаемому изобретению вл етс механизированна крепь сопр жени , включаюша св занные /домкратами передвижени секции, содержащие соединенные между собой боковые и среднее перекрыти , гидростойки, среднее и соединенные между собой порталами боковые основани 2.The closest technical solution to the present invention is a mechanized lining of the mating, including a section connected with a jack / moving, containing interconnected lateral and middle overlap, hydraulic racks, secondary and interconnected portals of the lateral bases 2.

Однако секции этой крепи имеют разную несущую способность. Секци крепи с минимальным количеством стоек имеет наибольший межстоечный пролет и наименьшее сопротивление . Так, например, ОлТ,на из секций с «и -образной рамой имеет 8 стоек, а втора - 4, т. е. несуща способность однойHowever, the sections of this lining have different bearing capacity. The lining section with the minimum number of racks has the highest inter-rack span and the least resistance. So, for example, OLT, on the sections with a "and -shaped frame, has 8 racks, and the second - 4, i.e. the carrying capacity of one

из них в два раза меньше, а межстоечный пролет минимум на шаг передвижки крепи больше. Это создает опасные услови в сопр гаемой зоне во врем передвижени секции с рамой из-за низкого сопротивлени two of them are less, and the inter-rack span is at least a step of shifting more. This creates hazardous conditions in the mating area during the movement of the section with the frame due to low resistance.

крепи.lining.

Целью изобретени вл етс выравнивание несущей способности секции.The aim of the invention is to level the load carrying capacity of the section.

Эта цель достигаетс тем, что в предлагаемой крепи гидростойки одной секции установлепы на среднем основании и св заныThis goal is achieved by the fact that, in the proposed lining, hydraulic racks of one section are installed on an average basis and are connected

с боковыми перекрыти ми, а гидростойки второй секции установлены на порталах и св заны со средни.м перекрытием.with side slabs, and the hydraulics of the second section are mounted on the portals and are connected with the middle slab.

Claims

FIG. 1 shows the described mechanized drift lining mate; in fig. 2 — lining with removed overlap, plan; in fig. 3 - the same after shifting; in fig. 4 is a section along A-A in FIG. one; in fig. 5 is a section along BB in FIG. one; in fig. 6 shows a section along BB in FIG. one; in FIG. 7, section no-GG in FIG. one; in fig. 8 is a section according to DD in FIG. 2. The mechanized lining of the mating consists of two sections of the outer 1 and inner 2, located on the liner and interconnected by power jacks 3 of movement. Section I consists of racks 4, connected to lateral overlaps 5 and middle base 6, made in the form of two T-shaped plates, which are oppositely directed in narrow portions one to another. -.-. Section 2 consists of racks 7, mounted through shock absorbers 8 on portals 9, which interconnect lateral bases 10 and 11 in the frame with vertical guides 12. Stands 4 are also installed through shock absorbers 8. The upper part of racks 7 is connected to middle overlap 13. The frame of section 2 is provided with a plate 15 holding the drive 14 of the downhole conveyor with hydraulic jacks 16 mounted into guides 17. Guides 17 are made in the form of pipes and are connected to vertical guides 12 by means of sliders 18 and trunnions 19 s 20 rise. The side covers are interconnected by spring packets 21. The mating cay works as follows. In the working position, the lining of both sections is in the open position. Jacks ,. The lift 20 adjusts the plate 15 with the drive 14 of the downhole conveyor for the amount of undermining and the angle of dip of the formation. Racks 7 provide spacer section 2 and the perception of the vertical force acting on section 2 of the drive 14 of the downhole conveyor. The lateral force is sensed by the hydraulic jacks 16, which abut the lower undermining of the formation on the reservoir. The sections are moved alternately with the movement jacks. When moving the section 2, the pillars 7 are unloaded, and the jacks 3 move the section to the movement pivot. Then the pillars 7 are unfastened, and the pillars 4 are unloaded, and the jacks 3 turn on and separate section 1. The stability of section 2 is provided by its frame, formed by portals 9, bases 10 and 11, spaced by size L. Dampers 8 racks 4 and 7 The supports ensure the return of the pillars 4 and 7 to the initial position when: relieving the load from the support section and their limited deviation in the process of work when the roof is displaced. The bases 6 and the portals 9 are structurally similar, which makes it possible to re-mount the movement jacks, to ensure the movement of the lining section in the opposite original direction: Such a design ensures the use of the lining on transport (hauling) and ventilation drifts without changing its structure or its separate knots. Claims of mechanized lining of mating, including jack-moving section, containing interconnected lateral and middle overlap, rigid, medium and interconnected between the portals, side bases, characterized in that, in order to equalize the carrying capacity of sections, the hydraulically adjustable section They are installed on the middle side and are connected with lateral overlappings and, while the racks of the second section are installed on the portals and are connected with the average break. Sources of information taken into consideration in the examination, 1. Polish Patent No. 63474, cl. 5 C 15/58 971.

2. Copyright certificate № 466334 l. E 21 D P / 36, 1973.