SU972137A1

SU972137A1 - Mechanism for moving support units

Info

Publication number: SU972137A1
Application number: SU813283586A
Authority: SU
Inventors: Михаил Константинович Гапонов; Георгий Львович Мелешко; Роман Викторович Благовещенский; Виталий Григорьевич Свадковский; Петр Ефимович Антонов; Алим Серафимович Афанасьев; Михаил Павлович Глазачев
Original assignee: Белорусский филиал Всесоюзного научно-исследовательского и проектного института галургии; Ордена Трудового Красного Знамени Производственное Объединение "Белорускалий" Им.50-Летия Ссср
Priority date: 1981-04-29
Filing date: 1981-04-29
Publication date: 1982-11-07

Description

(54) МЕХАНИЗМ ПЕРЕДВИЖКИ СЕКЦИЙ КРЕПИ(54) MECHANISM OF MOVEMENTS STRONG SECTIONS

1one

Изобретение относитс к подземной добыче полезных ископаемых, а именно к механизированным креп м очистных забоев шахт и предназначено дл использовани на пологих пластах.The invention relates to underground mining, in particular to mechanized fortifications of mining faces, and is intended for use on flat formations.

Известен механизм передвижки секций 5 крепи, состо щий из направл ющей лыжи, поперечины, щарнирно закрепленной на основании и гидродомкрата передвижки, одним концом соединенным с лыжой, а другим с поперечиной 1.,оA known mechanism for advancing sections 5 of the support, consisting of a guide ski, a cross member, hinged on the base and a shifter hydraulic jack, one end connected to the ski and the other to cross member 1., o

Недостатком такого механизма передвижки вл етс то, что он не обеспечивает регулированного щага передвижки крепи и конвейера.The disadvantage of such a shifting mechanism is that it does not provide for an adjustable shifter of the support and conveyor.

Наиболее близким к предлагаемому тех ническим решением по технической сущнос- 15 ти и достигаемому результату вл етс механизм передвижки секций крепи, включающий щарнирно соединенную с конвейером направл ющую балку, на которой установлен с возможностью продольного переме- ,0 щени с помощью гидродомкрата передвижки ползун с т гами, соединенными со стойками секции 2.The closest to the proposed technical solution according to the technical essence and the achieved result is the mechanism for moving the support sections, including a guide beam, which is pivotally connected to the conveyor by a guide beam, on which it is installed with the possibility of longitudinal movement of the slide with a slide valve gami connected to racks of section 2.

Недостатком указанного технического решени вл етс то, что оно не обеспечиваетThe disadvantage of this technical solution is that it does not provide

регулировки шага передвижки крепи и конвейера , что ограничивает область его использовани .adjusting the step of shifting the support and the conveyor, which limits the scope of its use.

Цель изобретени - повышение области использовани механизма за счет обеспечени регулировки шага передвижки крепи и конвейера.The purpose of the invention is to increase the area of use of the mechanism by providing adjustment of the step of the support movement and conveyor.

Это достигаетс тем, что гидродомкрат передвижки размещен в направл ющей балке , котора имеет отверсти дл фиксации гидродомкрата в продольном направлении, причем рассто ние между отверсти ми равно разнице между шагами передвижки, а т ги на ползуне и стойках закреплены шарнирно с возможностью вертикального перемещени .This is achieved by moving the shifter cam in the guide beam, which has openings for fixing the jack in the longitudinal direction, the distance between the holes being equal to the difference between the steps of the shifter, and the rods on the slide and racks are hinged with vertical movement.

При этом поперечное сечение направл ющей балки выполнено Т-образной формы .In this case, the cross section of the guide beam is T-shaped.

На фиг. 1 изображен механизм передвижки секций крепи, общий вид; на фиг. 2 - сечение А-А на фиг. 1; на фиг. 3 - сечение Б-Б на фиг. 1; на фиг. 4 - сечение В-В на фиг 1.FIG. 1 shows the mechanism for moving the support sections, the general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 - section bb In Fig 1.

Claims

The mechanism contains a guide beam 1, a slider 2 movably mounted on it, and also the rods 3 connecting the slider 2 and the supports 4 having hinges at points a, b, c, n A. The zalivny end of the beam 1 is made in the form of a box n There are three holes, 6a, 6a, and 6c, located along the beam axis (in the boxed part) at a distance corresponding to the difference between the steps of advancing the lining, depending on the size of the grip to everyday car. The mechanism works as follows. To move the support section, pressure is relieved in the racks 4 and the working fluid is supplied to the piston cavity of the hydraulic cylinder 5, the rod of which then extends and moves the slider 2 along beam 1 (in the direction of the bottom) and the racks 4 connected with it by the stroke amount. The downhole conveyor moves the spread of the uprights 4 and the supply of working fluid to the rod cavity of the hydraulic cylinder 5 and the guide beam 1 connected by the hinge 6 with the hydraulic cylinder 5 moves with the fixed rod. Self-alignment of the supports 4 due to possible soil unevenness in the ground The connection of t g 3 with the slider 2 and racks 4. The change in the width of the bottomhole supported space and the change in the shifting slide is achieved by moving the hinge pin 6 into the holes 6a and b. Each position of the finger 6 corresponds to a certain amount of movement, or a certain amount of capture of the excavation combine used. So the position of the finger 6 in the hole 6a can correspond to the value of the shifter, for example, 0.8 m; in the opening no - the value of the advancing, for example, 0.63 m, and in the opening 6c - the size of the movement 0.5 m. In this case, the stroke of the slide 2 is determined by its extreme position corresponding to the different positions of the finger 6; at the position of the finger 6 in the hole 6a, the rod of the jack 5 is fully extended, and the stroke of the slide is equal to the length li; at the position of the finger 6 in the openings 6a and 6c, the stem of the jack 5 is not fully extended and the slide travel is 12 and Ij, respectively. Thus, the distance between the holes into which the finger 6 is inserted is equal to the difference between the steps. The rods 3 connect the slider 2 to the uprights 4 and have swivels at points a, e. C and d. When moving supports, the resultant resistance to movement will be directed along the axis of the hinges. Folding the power quadrilateral aecd while moving the conveyor is eliminated due to the fact that the rods 3 connecting the pillars 4 to the slider 2 have limited mobility, which is achieved by establishing gaps 6 (Fig. 3 Directly connecting the ram to the pillars greatly simplifies the lining design and makes it The possibility of changing the step of advancing the lining and of the conveyor makes it possible to use combines with different widths and choose the rational width of the wellbore space maintained, depending on from geological conditions. Claim 1. The mechanism for moving the support sections, including a guide beam connected to the conveyor, which is mounted with the possibility of longitudinal movement with the slide of the slide, connected to the racks, sections, characterized in that in order to extend the area of use of the mechanism by providing adjustment of the step of the louver support and the conveyor, the slide shifter is placed in the guide beam, which has holes for fixing the hydraulic jack in the longitudinal direction, and the distance between the holes is equal to the difference between the advancement pins, and the rods on the slider and racks are fixed pivotally with the possibility of vertical movement. 2. The mechanism according to claim 1, characterized in that the cross-section of the guide beam is T-shaped. Sources of information taken into account in the examination 1. USSR author's certificate number 745373, cl. E 21 D 23/00, 1976.

2. The patent of Germany No. 1758763, cl. E 21 D 23/04, publ. 1976.