SU566931A1

SU566931A1 - Drive mechanism of a stoping cutter-loader

Info

Publication number: SU566931A1
Application number: SU7402040210A
Authority: SU
Inventors: Владимир Тихонович Коновалов; Борис Константинович Мышляев; Вадим Иванович Парамонов; Юрий Иванович Подобед; Владимир Иванович Миничев
Original assignee: Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения
Priority date: 1974-07-05
Filing date: 1974-07-05
Publication date: 1977-07-30

Description

1one

Изобретение относитс к оборудованию дл механизации подземной выемки угл , в част-, пости к очистным комбайнам.The invention relates to equipment for the mechanization of underground coal excavation, in particular, to combine shearers.

Известны механизмы подачи очистных комбайнов , перемещающихс по ставу конвейера, включающие корпус, редуктор, приводной элемент и зубчатую рейку, укрепленную на конвейере . Однако такой механизм имеет значительные габариты по щирине, а также перекос в зацеплении, который возникает в результате изгиба в вертикальной и горизонтальной плоскост х забойного конвейера, а следовательно , и зубчатой рейки. Это вызывает интенсивный износ контактирующих поверхностей зацеплени и заштыбовку впадин зубьев приводного элемента и рейки.Supply mechanisms for shearers moving along the conveyor bed are known, including a housing, a gearbox, a drive element and a rack mounted on the conveyor. However, such a mechanism has significant dimensions along the width, as well as a misalignment in the engagement, which occurs as a result of bending in the vertical and horizontal planes of the bottomhole conveyor, and consequently, the toothed rack. This causes intense wear of the contacting surfaces of the engagement and the gagging of the teeth pits of the drive element and the rail.

Целью изобретени вл етс уменьшение габаритов по щирипе приводного механизма и обеспечение его надежного зацеплени с зубчатой рейкой при взаимных перекосах и изменении щага зацеплени в местах изгиба конвейера .The aim of the invention is to reduce the dimensions of the spigot of the drive mechanism and to ensure its reliable engagement with the toothed rack at mutual distortions and changes in the engagement gear at the bend points of the conveyor.

Это достигаетс тем, что приводной элемент выполнен в виде цевочного колеса, укрепленного на кронштейне редуктора, на выходном валу которого установлена звезда, вход ща в зацепление с цевочным колесом. Кроме, того , с целью саморасщтыбовки, поверхности впадин цевочного колеса, звезды и зубчатойThis is achieved by the fact that the drive element is made in the form of a pinwheel mounted on the gearbox bracket, on the output shaft of which a star is mounted, which engages with the pinwheel. In addition, for the purpose of self-spacing, the surface of the valleys of the spider wheel, the star and the gear

рейки выполнены наклонными в сторонуslats are made inclined towards

внешнего .контура.external circuit.

На фиг. 1 изображен комбайн с завальной стороны с механизмом подачи; на фиг. 2 -FIG. 1 shows a combine from the scoop side with a feed mechanism; in fig. 2 -

механизм подачи со стороны выработанного пространства; на фиг. 3 - разрез по А-А на фиг. 2; на фиг. 4 - разрез по Б-Б на фиг. 2; на фиг. 5 - разрез по В-В на фиг. 2; на фиг. 6 - разрез по Г-Г на фиг. 2.feed mechanism from the developed space; in fig. 3 is a section along A-A in FIG. 2; in fig. 4 is a section along BB in FIG. 2; in fig. 5 is a section along BB in FIG. 2; in fig. 6 shows a section along YY in FIG. 2

Механизм подачи состоит из корпуса 1 в котором размещен редуктор, на выходном валу 2 которого закреплена звезда 3.The feeder consists of a housing 1 in which a gear is placed, on the output shaft 2 of which a star 3 is fixed.

В цилиндрическую расточку корпуса 1 соосно с выходным валом 2 установлен кронщтеин 4 (см. фиг. 3), на оси 5 которого смонтировано цевочное колесо 6. В отверсти цевочного колеса вставлены оси 7, на которые надеты втулки 8, образующие втулочно-роликовые цевки.In the cylindrical bore of the housing 1 coaxially with the output shaft 2, a bracket 4 is installed (see FIG. 3), on the axis 5 of which a pinwheel 6 is mounted. Axis 7 is inserted into the holes of the pinwheel, on which sleeves 8 are mounted, which form sleeve bushings.

Дл предотвращени кромочного контакта цевки с поверхностью зубьев 9 рейки 10 втулки 8 выполнены, например, бочкообразной формы. Зубчата рейка 10 состоит из отдельныхTo prevent edge contact of the pinch with the surface of the teeth 9 of the rail 10 of the sleeve 8, for example, barrel-shaped. Gear rack 10 consists of separate

Claims

links of length a little more than the length of pan 11, and rigidly fixed on the stav of the conveyor. The link of the rail is interconnected by hinges 12. In cross section, the tooth 9 of the rail in the upper part has a thickening 13 in the shape of a circle (see Fig. 6), displaced in the direction relative to the base of the tooth, on the surface of which the ski 14 of the combine with the grip 15 rests. to prevent the pinwheel 6 from jamming on the toothed rack 10, there is a necessary clearance between the surfaces of the tooth head and the pinwheels 16 of the pinwheel, and the increased tooth height provides possible movements within certain limits of the pinwheel in the vertical plane ti without disturbing the normal engagement of the pin with the tooth 9 of the slats. To ensure the self-spreading of the drive element of the surface of the depressions 17 of the star 3, the depressions 18 of the pinwheel 6 and the depressions 19 of the toothed rack 10 are inclined at an angle to the outer contour, and the flanges of the pinwheel against the depressions 18 have holes 20. During operation of the mechanism, the pinwheel 6 which is located by means of the pinings at the same time as the star 3 and the toothed rack 10, while rotating around its axis, is pinned onto the teeth 9 of the rack and transmits, through the bracket 4 to the combine, traction force developed by the drive mechanically ma. When changing the distance between the axis of the output shaft 2 of the gearbox and the toothed rack 10, for example, when the combine body is stepped up above the conveyor or the mechanism is mounted on another size of the combine, the brace 4 is rotated in the cylindrical bore of the housing 1 and secured in a proper position to ensure normal engagement of the pin wheels 6 with a gear rack Yu. Invention formula 1. Feed mechanism for shearers moving along a conveyor belt including a housing, a gearbox, a drive element and a gear rail mounted on a conveyor, characterized in that, in order to reduce the dimensions of the drive mechanism and ensure its reliable engagement with the toothed rack at mutual distortions and change the engagement pin at the bend points of the conveyor, the drive element is designed as a pinwheel mounted on the brace the gearbox, on the output shaft of which there is a star, is engaged with the pinwheel. ;

2. The feed mechanism according to claim 1, characterized in that, for the purpose of self-spreading the surfaces of the drive element, the surfaces of the depressions of the pinwheel, the star and the toothed rack are inclined toward the outer contour.

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